Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB 6277.2-92
Rubber-wheeled vehicles
Published on June 10, 1992
Technical conditions
Implemented on July 1, 1993
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Rubber-wheeled vehicles
Technical conditions
1 Subject content and scope of application
JB6277.2-92
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of rubber-wheeled vehicles, wheels and wheel seat components.
This standard applies to rubber-wheeled vehicles with a rated load of 1 to 10 kN, solid wheels with an outer diameter of 80 to 400 mm, pneumatic wheels with an outer diameter of 365 to 698 mm and wheel seat components. 2 Reference standards
GB1800 General introduction to tolerances and fits Standard tolerances and basic deviations GB2828 Sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches) GB2929 Sampling procedures and sampling tables for periodic inspection (applicable to inspection of stability of production processes) 3 Technical requirements
3.1 Rubber-wheeled vehicles shall comply with the provisions of this standard and be manufactured according to drawings and technical documents approved through the prescribed procedures. 3.2 Complete vehicle
3.2.1 The appearance shall not have defects such as scratches, cracks, deformation, poor welding or riveting, and poor painting. 3.2.2 The joints shall not have gaps, looseness, or other defects exceeding those specified in the drawings. 3.2.3 Assembly accuracy: The assembly accuracy of rubber-wheeled vehicles with more than three wheels (excluding floating wheels) shall be measured under no-load conditions by placing them on an inspection platform with a flatness of no more than 0.5 mm. The gap between all wheels and the platform shall not be greater than 3 mm. 3.2.4 Travel performance: Apply the rated load on the cargo surface, move forward, backward and turn 360° left and right on a flat and solid ground, the rubber-wheeled trolley should travel smoothly, operate flexibly and without any sense of resistance. 3.2.5 Starting performance: Apply the rated load on the cargo surface, start it in the forward direction of the wheel, and judge it according to the starting resistance coefficient. When the wheel uses rolling bearings, the starting resistance coefficient should not be greater than 0.035, and when using sliding bearings, it should not be greater than 0.06. For rubber-wheeled trolleys equipped with a check device, it will not rotate when 2 times the starting force is applied in the check state. 3.2.6 Load-bearing performance: Apply 1.5 times the rated load evenly on the cargo surface and keep it for 10 minutes before unloading. After unloading for 10 minutes, check all parts. There should be no deflection, deformation and other defects.
3.2.7 Handle strength: For single-side and double-side rubber-wheeled trolleys, the handle strength should be tested. The vehicle body should be fixed and horizontal tension should be applied to the handle. After unloading, check all parts. There should be no deflection, deformation and other defects. 3.3 Wheels
3.3.1 The appearance shall be free of scratches, casting defects, welding defects, poor painting and assembly defects. 3.3.2 The radial and axial runout of the outer edge of the wheel shall not exceed the requirements of Table 1. Table 1
Wheel outer diameter D
Solid wheel
Pneumatic wheel
80~100
Approved by the Ministry of Machinery and Electronics Industry on June 10, 1992125~250
315~400
>400~500
>500~600
>600~700
Implemented on July 1, 1993
3.3.3 Rolling performance
JB6277.292
The rolling resistance coefficient of the wheel measured by applying rated load to the axle shall comply with the provisions of Table 2. Table 2
Solid wheel or pneumatic wheel
3.3.4 Static load performance
3.3.4.1 Static load performance of solid wheel
Rolling bearing
Sliding bearing
With the wheel axle as the fulcrum, add 1.5 times the rated load in the radial direction and keep it for 10 minutes before unloading. Measure the radial deformation of the outer diameter of the tire 10 minutes after unloading, which should comply with the requirements of Table 3.
Wheel outer diameter
Deformation
80,100
125,160
3.3.4.2 Static load performance of pneumatic wheel
a. With the axle as the fulcrum, add a radial load twice the rated load to the outer diameter of the wheel and then keep it for 5 minutes before unloading. After unloading for 5 minutes, the permanent deformation of the load-bearing part shall not be greater than 1/1000 of the outer diameter of the rim being tested. b. The axial position of the fixed bearing is at the outer diameter end of the rim. Apply 0.35 times the rated load in the vertical direction of the surface and then hold for 5 minutes before unloading. After unloading for 5 minutes, the permanent deformation of the force-bearing part shall not be greater than 1/1000 of the outer diameter of the rim under test. 3.3.5 Dynamic load performance
3.3.5.1 Dynamic load performance of solid wheels
Apply the rated load radially on the axle and make the wheel rotate to withstand the impact of the bump. After the test, the tested wheel shall meet the following requirements: The tire shall not have cracks or peeling;
b. The bearing shall rotate flexibly and normally without abnormal noise. 3.3.5.2 Dynamic load performance of pneumatic wheels
Take two wheels as a group, add rated load in radial direction, and after the specified impact and tilt torsion at a speed of 3km/h, the radial permanent deformation at the outer diameter of the rim should not exceed 1/300 of the outer diameter of the wheel; the permanent deformation of the wheel end face should not exceed 1/200 of the outer diameter of the wheel rim: the axle bending or radial round runout variation should not exceed 1/30 of the axle diameter. 3.3.6 Fatigue life of rolling bearing pair
Add rated load in radial direction to the bearing pair, and run it at a speed of 130150r/min on the test bench. When the fatigue peeling area of the bearing pair parts reaches 1.0mm*, the bearing pair life should meet the following requirements: a.
The life of bearings with a single wheel rated load not exceeding 3.25kN should be not less than 3 million revolutions; b.: The life of bearings with a single wheel rated load greater than 3.25kN should be not less than 2.2 million revolutions. 3.3.7 The bearing inner diameter size deviation shall comply with the provisions of GB1800 (see Table 4) Table 4
Bearing inner diameter deviation
Rolling bearing for rickshaw
3.4 Wheel seat
3.4.1 Appearance shall comply with the provisions of Article 3.3.1.
3.4.2 Connection shall comply with the provisions of Article 3.2.2. 3.4.3 Load-bearing performance
Sliding bearing
Axle diameter deviation (reference)
Rolling bearing for rickshaw
Sliding bearing
JB6277.292
Apply 3 times the rated load of the wheel vertically at the axle hole and keep it for 3 minutes. After unloading, the wheel seat shall not have poor rotation (only for the rotating wheel seat and deformation defects.
3.4.4 Rotation performance
Fix the rotating wheel seat on the rotating disk, apply the rated load of the wheel on the wheel axle in the vertical direction, and measure the rotation resistance of the rotating disk. The rotation resistance coefficient shall not be greater than 0.04.| |tt||4 Test method
4.1 Vehicle starting performance test
The starting performance of a vehicle with more than two wheels is measured on the LXS-1000 rickshaw comprehensive performance test bench (hereinafter referred to as the comprehensive test bench). The vehicle is placed on the comprehensive test bench, the rated load is applied to the cargo surface, and a horizontal force is applied at a high point near the wheel seat installation position along the running direction of the wheel to start it. The starting resistance coefficient is obtained from formula (1): F
Where: u-
a starting resistance coefficient;
F,—starting force, kN;
W. Rated load, kN;
W, Vehicle deadweight, kN.
4.2 Handle strength test
The handle strength test is carried out on a comprehensive test bench. Fix the vehicle body and apply the tensile load obtained by formula (2) horizontally on the handle. F,=6μ(W.+W.)
Where: F—tensile load, kN;
Starting resistance coefficient (μ is 0.035 when the wheel adopts rolling bearings, and μ1 is 0.006 when the sliding bearings are adopted). Determination of radial and axial runout of the wheel
The wheel rotates one circle without axial movement, and radial measurements are taken at the continuous part of the pattern near the outer diameter of the tire, and at the cross-sectional width of the tire. Carry out axial measurement at the point where the pattern is continuous near the point with the maximum degree, and take the maximum value of the runout. 4.4 Wheel rolling performance test
The wheel rolling performance test is carried out on a comprehensive test bench. As shown in Figure 1, lead out a traction rope ③ from the axis of the test wheel ①, adjust the height of the fixed pulley ④ so that it is parallel to the test bench surface ②, apply the rated load ③ to the hanger of the test wheel axle, and slowly increase the base weight ③ in the code disk until the wheel rolls half a circle. At this time, the weight of the base weight is the measured wheel rolling resistance. And calculate the rolling resistance coefficient according to formula (3): μ2
Where: 2
Two rolling resistance coefficients;
F,—Rolling resistance, kN;
-Rated load, kN;
W Wheel set deadweight, kN.
4.5 Static load performance test for solid wheels
JB6277.2-92
Apply 1.5 times the rated load as shown in Figure 2 and keep it for -10 minutes before unloading. After unloading for 10 minutes, measure the radial deformation at the outer diameter of the tire. Figure 2
4.6 Radial static load performance test for pneumatic wheel body As shown in Figure 2, first apply an initial load of 0.2kN, and adjust the dial indicator to the "0\ point. Then apply 2 times the rated load and keep it for 5 minutes before unloading. After unloading for 5 minutes, measure the permanent deformation at the force-bearing part. 4.7 Axial static load performance test for pneumatic wheel body As shown in Figure 3, first apply an initial load of 0.1kN, and Adjust the dial indicator to the \0\ point, then apply 35% of the rated load and keep it for 5 minutes before unloading. After unloading for 5 minutes, measure the permanent deformation at the stress point. 4.8 Dynamic load performance test of solid wheels
JB6277.2—92
The dynamic load performance test of solid wheels is carried out on a comprehensive test bench. As shown in Figure 4, apply the rated load to the axle so that the wheel is pressed on the working wheel equipped with a bump (the bump size is specified in Table 5), and rotates at a circumferential speed of 3km/h. After impacting 10,000 times, the wheel is inspected.
b—bump width; h—bump height; r—bump radius; D—outer diameter of the test wheel Table 5
outer diameter of wheel D
125~200
250~31 5
4.9 Dynamic load performance test of pneumatic wheels
4.9.1 Tilt and torsion test
Bump width 6
Bump height h
The tilt and torsion test is carried out on a comprehensive test bench. First, adjust the working wheels on both sides of the test bench so that the height difference of their outer circumference surfaces meets the requirements of Table 6. 5
JB6277.2—92
, apply the rated load to the wheel set and press it on the working wheel, so that the wheel set rotates at a circumferential speed of 3km/h, and tilt and torsion each of the two wheels 15 times.
Single-wheel vehicle
Two-wheel vehicle
4.9.2 Impact test
Height difference of outer circumference surface of working wheels = 0.15 wheelbase outer circumference surface height of working wheels Difference = 0.25 wheelbase mm
The impact test is carried out on a comprehensive test bench. First, adjust the working wheels on both sides of the test bench to be concentric with the drive shaft. The height of the impact bump installed on the working wheel is as specified in Table 7. Apply the rated load to the wheel set and press it on the working wheel. The working wheels on both sides rotate at a circumferential speed of 3km/h at the same time, and impact the wheel set 30 times.
After completing the above two tests, the permanent deformation of the rim and axle is measured. Table 7
Single-wheel vehicle
Two-wheel vehicle
4.10 Fatigue life test of rolling bearings for rubber-wheeled vehicles Impact bump height = 0.23 Wheel outer diameter
Impact bump height = 0.14 Wheel outer diameter
The test is carried out on a JS type rapid fatigue life test bench. As shown in Figure 5, two sets of bearings are installed in the bearing holes at both ends of the roller, locked with double nuts, and an enhanced load P (P<1.85W) is applied. The roller speed is 1900r/min, and the oil temperature during the test shall not exceed 70℃. The fatigue life N of the enhanced test bearing is calculated according to formula (4):
Nz=1.054ND
Where: N,——the fatigue life of the bearing pair specified in Article 3.3.6, r; P test enhanced load, kN.
Test shaft
Shaft block (non-rotating)
Friction wheel
4.11 Swivel performance test of slewing wheel seat
JB6277.2—92
The test is carried out on the slewing performance test bench. As shown in Figure 6, before the test, adjust the slewing wheel seat ① so that the coaxial axis is coaxial with the slewing disc ②, and fix it on the slewing disc, load it on the sling ③, and the load is calculated according to the lever principle. The slewing disc is rotated by the traction rope ①, and the maximum coaxial resistance at this time is measured. The slewing resistance coefficient is calculated according to formula (5): μ
Where: - — slewing resistance coefficient;
F - coaxial resistance, kN.
5 Inspection rules
5.1 The whole vehicle, wheels, and wheel seat of the rubber-wheeled vehicle must be inspected by the quality inspection department of the manufacturer and issued a certificate of conformity before they can leave the factory. (5)
5.2 Before leaving the factory, the appearance, connection and running performance of the whole vehicle in the unloaded state, the appearance of the wheels and wheel seats, and the connection of the wheel seats must be inspected one by one. They should comply with the provisions of Articles 3.2.1, 3.2.2, 3.2.4 and 3.3.1 of this standard respectively. 5.3 Randomly select 2 complete vehicles or 2 parts from qualified products every six months and inspect them according to all the items specified in Article 3 of this standard. 5.4 The ordering unit has the right to conduct random inspections on the manufacturing quality of the products according to the relevant provisions of this standard. The sampling method, sampling quantity and qualified quality level shall be agreed upon by the supply and demand parties in accordance with GB2828 or GB2829. 5.5 Under the conditions of the use and storage rules specified in the "Product Instructions", if the product is damaged or cannot be used normally due to poor manufacturing quality within 6 months from the date of the user's delivery, the manufacturer shall be responsible for repair, replacement and refund (except for vulnerable parts). 6 Marking, packaging, transportation and storage
6.1 Marking
The rubber-wheeled vehicle shall have a product nameplate fixed in a conspicuous position, with the following content: product name and trademark;
Product model;
Rated load;
d. Date of manufacture;
Manufacturer name.
JB6277.2-92
The wheels and wheel seats shall have the manufacturer's trademark and product mark. The following marks shall be on the exposed surface of the packaging when it is packed and shipped out of the factory: product name;
b. Product model;
Quantity:
Volume (length×width×height);
Gross weight;
Date of shipment;
Name of manufacturer.
6.2·Wheels and wheel seats can be assembled and shipped out of the factory, and neutral materials shall be used for packaging. The packaging shall be firm and reliable, and anti-vibration and moisture-proof measures shall be taken when necessary to ensure that the product is intact. Special requirements shall be agreed upon by both the supplier and the buyer. 6.3 The following technical documents shall be carried with the complete vehicle:
a. Product instruction manual;
b. Product certificate.
6.4 Transportation requirements shall be in accordance with the order contract.
6.5 Products should be stored in a dry, ventilated place without harmful gases, and should be protected from moisture and corrosion. Additional remarks:
This standard is proposed and managed by the Chinese Academy of Agricultural Mechanization Sciences. This standard was drafted by the Chinese Academy of Agricultural Mechanization Sciences and Qingdao Vehicle Factory. The main drafters of this standard are Zhang Baosheng, Tan Zhi, Mi Ruoqun, Shi Yaming, Yang Baozhen, etc. 8
People's Republic of China
Mechanical Industry Standard
Technical Conditions for Rubber-Wheeled Vehicles
JB6277.292
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (Box 8144, Beijing, 100081)
No reproduction
Copyright reserved
Format 880×1230
1/16 Sheet 3/4
Number of words 16,000
First edition in March 1993 First printing in March 1993 Printing run 00.001-500 Price RMB 2.40
No. 08972—92
The dynamic load performance test of solid wheels is carried out on a comprehensive test bench. As shown in Figure 4, the rated load is applied to the axle, so that the wheel is pressed on the working wheel equipped with a bump (the bump size is specified in Table 5), and rotates at a peripheral speed of 3km/h. After 10,000 impacts, the wheel is inspected.
b—bump width; h—bump height; r—bump radius; D—outer diameter of the tested wheel Table 5
outer diameter of wheel D
125~200
250~315
4.9 Dynamic load performance test of pneumatic wheels
4.9.1·Tilt torsion test
Bump width 6
Bump height h
Tilt torsion test is carried out on a comprehensive test bench. First adjust the working wheels on both sides of the test bench so that the height difference of their outer circumference surfaces meets the requirements of Table 6. Apply the rated load to the wheel set and press it on the working wheel. Make the wheel set rotate at a circumferential speed of 3km/h. Tilt and twist each of the two wheels 15 times.
Single-wheel vehicle
Two-wheel vehicle
4.9.2 Impact test
Height difference of working wheel outer circumference surface = 0.15 wheelbase Height difference of working wheel outer circumference surface = 0.25 wheelbase mm
The impact test is carried out on the comprehensive test bench. First adjust the working wheels on both sides of the test bench to be concentric with the drive shaft. The height of the impact bumps installed on the working wheels is as specified in Table 7. Apply the rated load to the wheel set and press it on the working wheel. Make the working wheels on both sides rotate at a circumferential speed of 3km/h at the same time. Impact the wheel set 30 times.
After completing the above two tests, the permanent deformation of the rim and axle is measured. Table 7
Single-wheel vehicle
Two-wheel vehicle
4.10 Fatigue life test of rolling bearings for rubber-wheeled vehicles Impact bump height = 0.23 Wheel outer diameter
Impact bump height = 0.14 Wheel outer diameter
The test is carried out on a JS type rapid fatigue life test bench. As shown in Figure 5, two sets of bearings are installed in the bearing holes at both ends of the roller, locked with double nuts, and an enhanced load P (P<1.85W) is applied. The roller speed is 1900r/min, and the oil temperature during the test shall not exceed 70℃. The fatigue life N of the bearing in the enhanced test is calculated according to formula (4):
Nz=1.054ND
Where: N,——the fatigue life of the bearing pair specified in Article 3.3.6, r; P test enhanced load, kN.
Test shaft
Shaft stopper (non-rotating)
Friction wheel
4.11 Swivel performance test of slewing wheel seat
JB6277.2—92
The test is carried out on the slewing performance test bench. As shown in Figure 6, before the test, adjust the slewing wheel seat ① so that the coaxial axis is coaxial with the slewing disc ②, and fix it on the slewing disc, load it on the sling ③, and the load is calculated according to the lever principle. The slewing disc is rotated by the traction rope ①, and the maximum coaxial resistance at this time is measured. The slewing resistance coefficient is calculated according to formula (5): μ
Where: - — slewing resistance coefficient;
F - coaxial resistance, kN.
5 Inspection rules
5.1 The whole vehicle, wheels, and wheel seat of the rubber-wheeled vehicle must be inspected by the quality inspection department of the manufacturer and issued with a certificate of conformity before they can leave the factory. (5)
5.2 Before the product leaves the factory, the appearance, joints and running performance of the whole vehicle under no-load condition, the appearance of the wheels and wheel seats, and the joints of the wheel seats must be inspected one by one, which shall comply with the provisions of Article 3.2.1, Article 3.2.2, Article 3.2.4 and Article 3.3.1 of this standard respectively. 5.3 Every six months, two whole vehicles or two parts shall be randomly selected from qualified products and inspected according to all items specified in Article 3 of this standard. 5.4 The ordering unit has the right to conduct random inspections on the manufacturing quality of the product in accordance with the relevant provisions of this standard. The sampling method, sampling quantity and qualified quality level shall be agreed upon by the supply and demand parties in accordance with GB2828 or GB2829. 5.5 Under the condition that the user complies with the use and storage rules specified in the "Product Instructions", within 6 months from the date of the user's delivery, if the product is damaged or cannot be used normally due to poor manufacturing quality, the manufacturer shall be responsible for repair, replacement and refund (except for vulnerable parts). 6 Marking, packaging, transportation and storage
6.1 Marking
The rubber-wheeled vehicle shall have a product nameplate fixed in an obvious position, with the following contents: product name and trademark;
product model;
rated load;
d. date of manufacture;
name of manufacturer.
JB6277.2-92
The wheels and wheel seats shall have the manufacturer's trademark and product mark. When the packaging is shipped from the factory, the exposed surface of the packaging shall have the following marks: product name;
b. product model;
quantity:
volume (length×width×height);
gross weight;
date of manufacture;
name of manufacturer.
6.2·The wheels and wheel seats can be assembled and shipped from the factory, and shall be packaged with neutral materials. The packaging should be firm and reliable, and if necessary, anti-vibration and anti-moisture measures should be taken to ensure that the product is intact. Special requirements shall be agreed upon by both parties. 6.3 The following technical documents shall be carried with the vehicle:
a. Product instruction manual;
b. Product certificate.
6.4 Transportation requirements shall be in accordance with the order contract.
6.5 The product shall be stored in a dry, ventilated place without harmful gases, and pay attention to moisture and corrosion prevention. Additional remarks:
This standard is proposed and managed by the Chinese Academy of Agricultural Mechanization Sciences. This standard is drafted by the Chinese Academy of Agricultural Mechanization Sciences and Qingdao Vehicle Factory. The main drafters of this standard are Zhang Baosheng, Tan Zhi, Mi Ruoqun, Shi Yaming, Yang Baozhen, etc. 8
People's Republic of China
Mechanical Industry Standard
Technical Conditions for Rubber-Wheeled Vehicles
JB6277.292
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (Box 8144, Beijing, 100081)
No reproduction
Copyright reserved
Format 880×1230
1/16 Sheet 3/4
Number of words 16,000
First edition in March 1993 First printing in March 1993 Printing run 00.001-500 Price RMB 2.40
No. 08972—92
The dynamic load performance test of solid wheels is carried out on a comprehensive test bench. As shown in Figure 4, the rated load is applied to the axle, so that the wheel is pressed on the working wheel equipped with a bump (the bump size is specified in Table 5), and rotates at a peripheral speed of 3km/h. After 10,000 impacts, the wheel is inspected.
b—bump width; h—bump height; r—bump radius; D—outer diameter of the tested wheel Table 5
outer diameter of wheel D
125~200
250~315
4.9 Dynamic load performance test of pneumatic wheels
4.9.1·Tilt torsion test
Bump width 6
Bump height h
Tilt torsion test is carried out on a comprehensive test bench. First adjust the working wheels on both sides of the test bench so that the height difference of their outer circumference surfaces meets the requirements of Table 6. Apply the rated load to the wheel set and press it on the working wheel. Make the wheel set rotate at a circumferential speed of 3km/h. Tilt and twist each of the two wheels 15 times.
Single-wheel vehicle
Two-wheel vehicle
4.9.2 Impact test
Height difference of working wheel outer circumference surface = 0.15 wheelbase Height difference of working wheel outer circumference surface = 0.25 wheelbase mm
The impact test is carried out on the comprehensive test bench. First adjust the working wheels on both sides of the test bench to be concentric with the drive shaft. The height of the impact bumps installed on the working wheels is as specified in Table 7. Apply the rated load to the wheel set and press it on the working wheel. Make the working wheels on both sides rotate at a circumferential speed of 3km/h at the same time. Impact the wheel set 30 times.
After completing the above two tests, the permanent deformation of the rim and axle is measured. Table 7
Single-wheel vehicle
Two-wheel vehicle
4.10 Fatigue life test of rolling bearings for rubber-wheeled vehicles Impact bump height = 0.23 Wheel outer diameter
Impact bump height = 0.14 Wheel outer diameter
The test is carried out on a JS type rapid fatigue life test bench. As shown in Figure 5, two sets of bearings are installed in the bearing holes at both ends of the roller, locked with double nuts, and an enhanced load P (P<1.85W) is applied. The roller speed is 1900r/min, and the oil temperature during the test shall not exceed 70℃. The fatigue life N of the bearing in the enhanced test is calculated according to formula (4):
Nz=1.054ND
Where: N,——the fatigue life of the bearing pair specified in Article 3.3.6, r; P test enhanced load, kN.
Test shaft
Shaft stopper (non-rotating)
Friction wheel
4.11 Swivel performance test of slewing wheel seat
JB6277.2—92
The test is carried out on the slewing performance test bench. As shown in Figure 6, before the test, adjust the slewing wheel seat ① so that the coaxial axis is coaxial with the slewing disc ②, and fix it on the slewing disc, load it on the sling ③, and the load is calculated according to the lever principle. The slewing disc is rotated by the traction rope ①, and the maximum coaxial resistance at this time is measured. The slewing resistance coefficient is calculated according to formula (5): μ
Where: - — slewing resistance coefficient;
F - coaxial resistance, kN.
5 Inspection rules
5.1 The whole vehicle, wheels, and wheel seat of the rubber-wheeled vehicle must be inspected by the quality inspection department of the manufacturer and issued with a certificate of conformity before they can leave the factory. (5)
5.2 Before the product leaves the factory, the appearance, joints and running performance of the whole vehicle under no-load condition, the appearance of the wheels and wheel seats, and the joints of the wheel seats must be inspected one by one, and they shall comply with the provisions of Article 3.2.1, Article 3.2.2, Article 3.2.4 and Article 3.3.1 of this standard respectively. 5.3 Every six months, two whole vehicles or two parts shall be randomly selected from qualified products and inspected according to all items specified in Article 3 of this standard. 5.4 The ordering unit has the right to conduct random inspections on the manufacturing quality of the product in accordance with the relevant provisions of this standard. The sampling method, sampling quantity and qualified quality level shall be agreed upon by the supply and demand parties in accordance with GB2828 or GB2829. 5.5 Under the condition that the user complies with the use and storage rules specified in the "Product Instructions", within 6 months from the date of the user's delivery, if the product is damaged or cannot be used normally due to poor manufacturing quality, the manufacturer shall be responsible for repair, replacement and refund (except for vulnerable parts). 6 Marking, packaging, transportation and storage
6.1 Marking
The rubber-wheeled vehicle shall have a product nameplate fixed in an obvious position, with the following contents: product name and trademark;
product model;
rated load;
d. date of manufacture;
name of manufacturer.
JB6277.2-92
The wheels and wheel seats shall have the manufacturer's trademark and product mark. When the packaging is shipped from the factory, the exposed surface of the packaging shall have the following marks: product name;
b. product model;
quantity:
volume (length×width×height);
gross weight;
date of manufacture;
name of manufacturer.
6.2·The wheels and wheel seats can be assembled and shipped from the factory, and shall be packaged with neutral materials. The packaging should be firm and reliable, and if necessary, anti-vibration and anti-moisture measures should be taken to ensure that the product is intact. Special requirements shall be agreed upon by the supply and demand parties. 6.3 The following technical documents should be carried with the vehicle:
a. Product instruction manual;
b. Product certificate. wwW.bzxz.Net
6.4 Transportation requirements shall be in accordance with the order contract.
6.5 The product should be stored in a dry, ventilated place without harmful gases, and pay attention to moisture and corrosion. Additional notes:
This standard is proposed and managed by the Chinese Academy of Agricultural Mechanization Sciences. This standard is drafted by the Chinese Academy of Agricultural Mechanization Sciences and Qingdao Vehicle Factory. The main drafters of this standard are Zhang Baosheng, Tan Zhi, Mi Ruoqun, Shi Yaming, Yang Baozhen, etc. 8
People's Republic of China
Mechanical Industry Standard
Technical Conditions for Rubber-Wheeled Vehicles
JB6277.292
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (Box 8144, Beijing, 100081)
No reproduction
Copyright reserved
Format 880×1230
1/16 Sheet 3/4
Number of words 16,000
First edition in March 1993 First printing in March 1993 Printing run 00.001-500 Price RMB 2.40
No. 08972—92
The test is carried out on a slewing performance test bench. As shown in Figure 6, before the test, adjust the slewing wheel seat ① so that the coaxial axis is coaxial with the slewing disc ②, and fix it on the slewing disc, load it on the sling ③, and the load is calculated according to the lever principle. The slewing disc is rotated by the traction rope ①, and the maximum coaxial resistance at this time is measured. The slewing resistance coefficient is calculated according to formula (5): μ
Where: - — slewing resistance coefficient;
F - coaxial resistance, kN.
5 Inspection rules
5.1 The rubber-wheeled vehicle, wheels, and wheel seats must be inspected by the quality inspection department of the manufacturer and issued a certificate of conformity before they can leave the factory. (5)
5.2 Before the product leaves the factory, the appearance, joints and running performance of the whole vehicle under no-load condition, the appearance of the wheels and wheel seats, and the joints of the wheel seats must be inspected one by one, and they shall comply with the provisions of Article 3.2.1, Article 3.2.2, Article 3.2.4 and Article 3.3.1 of this standard respectively. 5.3 Every six months, two whole vehicles or two parts shall be randomly selected from qualified products and inspected according to all items specified in Article 3 of this standard. 5.4 The ordering unit has the right to conduct random inspections on the manufacturing quality of the product in accordance with the relevant provisions of this standard. The sampling method, sampling quantity and qualified quality level shall be agreed upon by the supply and demand parties in accordance with GB2828 or GB2829. 5.5 Under the condition that the user complies with the use and storage rules specified in the "Product Instructions", within 6 months from the date of the user's delivery, if the product is damaged or cannot be used normally due to poor manufacturing quality, the manufacturer shall be responsible for repair, replacement and refund (except for vulnerable parts). 6 Marking, packaging, transportation and storage
6.1 Marking
The rubber-wheeled vehicle shall have a product nameplate fixed in an obvious position, with the following contents: product name and trademark;
product model;
rated load;
d. date of manufacture;
name of manufacturer.
JB6277.2-92
The wheels and wheel seats shall have the manufacturer's trademark and product mark. When the packaging is shipped from the factory, the exposed surface of the packaging shall have the following marks: product name;
b. product model;
quantity:
volume (length×width×height);
gross weight;
date of manufacture;
name of manufacturer.
6.2·The wheels and wheel seats can be assembled and shipped from the factory, and shall be packaged with neutral materials. The packaging should be firm and reliable, and if necessary, anti-vibration and anti-moisture measures should be taken to ensure that the product is intact. Special requirements shall be agreed upon by the supply and demand parties. 6.3 The following technical documents should be carried with the vehicle:
a. Product instruction manual;
b. Product certificate.
6.4 Transportation requirements shall be in accordance with the order contract.
6.5 The product should be stored in a dry, ventilated place without harmful gases, and pay attention to moisture and corrosion. Additional notes:
This standard is proposed and managed by the Chinese Academy of Agricultural Mechanization Sciences. This standard is drafted by the Chinese Academy of Agricultural Mechanization Sciences and Qingdao Vehicle Factory. The main drafters of this standard are Zhang Baosheng, Tan Zhi, Mi Ruoqun, Shi Yaming, Yang Baozhen, etc. 8
People's Republic of China
Mechanical Industry Standard
Technical Conditions for Rubber-Wheeled Vehicles
JB6277.292
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (Box 8144, Beijing, 100081)
No reproduction
Copyright reserved
Format 880×1230
1/16 Sheet 3/4
Number of words 16,000
First edition in March 1993 First printing in March 1993 Printing run 00.001-500 Price RMB 2.40
No. 08972—92
The test is carried out on a slewing performance test bench. As shown in Figure 6, before the test, adjust the slewing wheel seat ① so that the coaxial axis is coaxial with the slewing disc ②, and fix it on the slewing disc, load it on the sling ③, and the load is calculated according to the lever principle. The slewing disc is rotated by the traction rope ①, and the maximum coaxial resistance at this time is measured. The slewing resistance coefficient is calculated according to formula (5): μ
Where: - — slewing resistance coefficient;
F - coaxial resistance, kN.
5 Inspection rules
5.1 The rubber-wheeled vehicle, wheels, and wheel seats must be inspected by the quality inspection department of the manufacturer and issued a certificate of conformity before they can leave the factory. (5)
5.2 Before the product leaves the factory, the appearance, joints and running performance of the whole vehicle under no-load condition, the appearance of the wheels and wheel seats, and the joints of the wheel seats must be inspected one by one, and they shall comply with the provisions of Article 3.2.1, Article 3.2.2, Article 3.2.4 and Article 3.3.1 of this standard respectively. 5.3 Every six months, two whole vehicles or two parts shall be randomly selected from qualified products and inspected according to all items specified in Article 3 of this standard. 5.4 The ordering unit has the right to conduct random inspections on the manufacturing quality of the product in accordance with the relevant provisions of this standard. The sampling method, sampling quantity and qualified quality level shall be agreed upon by the supply and demand parties in accordance with GB2828 or GB2829. 5.5 Under the condition that the user complies with the use and storage rules specified in the "Product Instructions", within 6 months from the date of the user's delivery, if the product is damaged or cannot be used normally due to poor manufacturing quality, the manufacturer shall be responsible for repair, replacement and refund (except for vulnerable parts). 6 Marking, packaging, transportation and storage
6.1 Marking
The rubber-wheeled vehicle shall have a product nameplate fixed in an obvious position, with the following contents: product name and trademark;
product model;
rated load;
d. date of manufacture;
name of manufacturer.
JB6277.2-92
The wheels and wheel seats shall have the manufacturer's trademark and product mark. When the packaging is shipped from the factory, the exposed surface of the packaging shall have the following marks: product name;
b. product model;
quantity:
volume (length×width×height);
gross weight;
date of manufacture;
name of manufacturer.
6.2·The wheels and wheel seats can be assembled and shipped from the factory, and shall be packaged with neutral materials. The packaging should be firm and reliable, and if necessary, anti-vibration and anti-moisture measures should be taken to ensure that the product is intact. Special requirements shall be agreed upon by the supply and demand parties. 6.3 The following technical documents should be carried with the vehicle:
a. Product instruction manual;
b. Product certificate.
6.4 Transportation requirements shall be in accordance with the order contract.
6.5 The product should be stored in a dry, ventilated place without harmful gases, and pay attention to moisture and corrosion. Additional notes:
This standard is proposed and managed by the Chinese Academy of Agricultural Mechanization Sciences. This standard is drafted by the Chinese Academy of Agricultural Mechanization Sciences and Qingdao Vehicle Factory. The main drafters of this standard are Zhang Baosheng, Tan Zhi, Mi Ruoqun, Shi Yaming, Yang Baozhen, etc. 8
People's Republic of China
Mechanical Industry Standard
Technical Conditions for Rubber-Wheeled Vehicles
JB6277.292
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (Box 8144, Beijing, 100081)
No reproduction
Copyright reserved
Format 880×1230
1/16 Sheet 3/4
Number of words 16,000
First edition in March 1993 First printing in March 1993 Printing run 00.001-500 Price RMB 2.40
No. 0897
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