Some standard content:
ICS29.160
Machinery Industry Standard of the People's Republic of China
JB/T10218-2000
Balance Crane
BalanceCrane
Published on 2000-11-29
State Machinery Industry Bureau
Implemented on 2001-01-01
JB/T 10218-2000
Cited standards
Type and basic parameters
Test methods
Inspection rules
Marking, packaging, transportation, storage
JB/T10218-2000
This standard is compiled in accordance with the provisions of Chapters 4, 5, and 6 of GB/T1.1-1993 "Guidelines for Standardization Work Unit 1: Rules for Drafting and Presentation of Standards Part 1: Basic Regulations for Standardization" and Chapter 5 of GB/T1.3-1997 "Guidelines for Standardization Work Unit 1: Rules for Drafting and Presentation of Standards Part 3: Regulations for the Preparation of Product Standards". From the date of publication of this standard, the design of new products and the transformation of old products of balance cranes shall comply with this standard. During the transition period before the implementation of the standard, the drawings of old products shall be rectified in accordance with this standard to meet the requirements of this standard. Products that have been put into production shall still be implemented in accordance with the original standard. This standard is proposed and managed by Shenyang Electric Equipment Research Institute. This standard is drafted by Yangquan Electric Machinery Co., Ltd. The main drafters of this standard are Yan Aihe, Su Cuimei, Chen Yixin, and Hao Shujin. This standard is entrusted to Shenyang Electric Equipment Research Institute for interpretation. 11 Scope
Machinery Industry Standard of the People's Republic of China
Balance Crane
Balance Crane
JB/T 10218—2000
This standard specifies the types and basic parameters, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of balance cranes. This standard applies to balance cranes with parallelogram balance rods as the main structural feature. Balance cranes of other structural types may also be adopted for reference. Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 985-1988
GB/T 3323-1987
GB/T 3811-1983
GB/T 5117-1995||GB/T 6974.1-1986
GB/T 10051.1-1988
GB/T 10051.2-1988
GB/T 10051.3-1988
GB/T 10051.4-1988
GB/T 10051.5-1988
GB/T 13384-1992
GB/T 13385-1992
JB/T 2739-1996
JB/T 3836-1997
JB/T 4328.1-1999||JB/T 4328.4-1999
JB/T 4328.5-1999
JB/T 4328.6-1999
JB/T 4328.7-1999
JB/T 4328.8-1999
JB/T 4328.10-1999
JB/T 9655-1999
Basic forms and dimensions of weld grooves for gas welding, manual arc welding and gas shielded weldingRadiography and quality classification of steel fusion welding butt jointsDesign specifications for cranes
Carbon steel welding rods
Terms and terms of lifting machinery
Mechanical properties, lifting capacity, stress and materials of lifting hooksTechnical conditions for lifting hooks with straight handles
Inspection of lifting hooks with straight handles
Lifting hooks with straight handles and single hooksNormal parts
Lifting hooks with straight handles and single hooks
General technical conditions for packaging of electromechanical products||tt| |Requirements for packaging drawings
Graphic symbols for electrical drawings of industrial machinery
Product model compilation method for electrical equipment General technical conditions for grey cast iron parts of electrical equipment General technical conditions for forging of electrical equipment General technical conditions for welding parts of electrical equipment General technical conditions for machining of electrical equipment General technical conditions for heat treatment of electrical equipment General technical conditions for assembly of electrical equipment General technical conditions for ductile iron parts of electrical equipment General technical conditions for control equipment of electrical equipment State Bureau of Machinery Industry Approved on November 29, 2000 Implementation on January 1, 2001
3 Terminology
3.1 Horizontal cross section refers to the horizontal plane passing through the hook point.
3.2 Vertical cross section JB/T 10218--2000
Refers to the vertical plane formed by the hook point and the rotation center line (plumb line) of the column. 3.3 Diametrical direction operating force: The force applied perpendicular to the centerline of column rotation in the working space to make the weight move. 3.4 Maximum operating force of diametrical direction: The maximum force applied perpendicular to the centerline of column rotation in the working space to make the weight move. 3.5 Maximum unbalance of force diametrical direction: The maximum radial force applied to keep the hook at a stationary state at a certain point in any vertical section in the working space. 3.6 Tangent direction operating force: The force applied perpendicular to the rotation radius in any horizontal section in the working space to make the weight move. 3.7 Maximum operating force of tangent direction: The maximum force applied perpendicular to the rotation radius in any horizontal section in the working space to make the weight move. Other standard terms shall be implemented in accordance with GB6974.1. 4 Type and basic parameters
4.1 Type
4.1.1 According to the installation method, it is divided into:
a) Ground type (as shown in Figure 1);
b) Wall type (as shown in Figure 2);
c) Suspension type (as shown in Figure 3).
4.1.2 According to the transmission method, it is divided into:
Mechanical type;
Hydraulic type;
Pneumatic type.
Basic parameters (see Table 1)
Rated lifting capacity
Stepless speed regulation
Maximum working radius
Vertical stroke
Slewing angle
4.3 Model compilation method
JB/T10218-2000
100200
The model of the balance crane should comply with the provisions of JB/T3836. 3000
4.3.2 The product model of the balancing crane consists of the balancing crane code, installation method code, transmission method code, main parameter (rated lifting weight, maximum working radius) digital code, and rod system category code, which are expressed as follows: Rod system category code
Maximum working radius digital code
Rated lifting weight digital code
Transmission method code
Installation method code
Balancing crane code
4.3.3 The balancing crane code is specified as P.
The installation method code shall comply with the provisions of Table 2. Table 2
Installation method
Ground type
The transmission method code shall comply with the provisions of Table 3. Transmission method
Mechanical type
The rated lifting weight digital code shall comply with the provisions of Table 4. Rated lifting weight kg
Digital code
Hydraulic
Suspension
Pneumatic
JB/T 10218--2000
4.3.7 The digital code of the maximum working radius shall comply with the provisions of Table 5. Table 5
Maximum working radius mm
Digital code
4.3.8 The rod system is divided into single arm and compound arm. The compound arm code is F, and the single arm is not marked: 4.3.9 After the product is improved, the tail of the original product model can be increased by A, B, C..·4.3.10 Marking example
Rated lifting capacity is 320kg, maximum working radius is 2500mm, single-arm ground-type mechanical high-type balance crane. Marked as: PDJ0325 Rated lifting capacity is 100kg, maximum working radius is 3500mm, double-arm ground-type mechanical low-type balance crane, after the first improvement. Marked as: PAJO135FA
5 Requirements
5.1 Basic requirements
5.1.1 Electrical graphic symbols shall comply with the provisions of JB/T2739. 5.1.2 Products shall be manufactured according to drawings and technical documents approved by the prescribed procedures. 5.1.3 Parts and components must be inspected and qualified according to regulations before they can be used for assembly. 5.1.4 Purchased parts and collaborative parts must have product quality inspection certificates from the manufacturer and can only be used for assembly after they are accepted and qualified according to regulations. 5.2 General processing and assembly quality requirements
5.2.1 General mechanical processing shall comply with the provisions of JB/T4328.6. 5.2.2 Heat-treated parts shall comply with the provisions of JB/T4328.7. 5.2.3 Cast iron parts shall comply with the provisions of JB/T4328.1 and JB/T4328.10. 5.2.4 Forgings shall comply with the provisions of JB/T4328.4. 5.2.5 Welded parts shall comply with the provisions of JB/T4328.5. 5.2.5.1 The groove form and size of butt joints shall comply with the provisions of GB/T985. 5.2.5.2 Welding electrodes shall comply with the provisions of GB/T5117. 5.2.5.3 The welding quality of important parts shall comply with the provisions of Grade II in GB/T3323. 4
Assembly shall comply with the provisions of JB/T4328.8. 5.2.6
5. 2. 6. 1
0.08mm.
JB/T10218—2000
When installing the column, the flange on it should be leveled so that the horizontal error of the upper plane is within 1000mm and not more than 5.2.6.2 The assembly of bearings, gears, chains, splines, fasteners, seals, hydraulic parts, and pneumatic parts shall comply with the provisions of JB/T4328.8 in addition to the provisions of this standard.
5.2.6.3 The assembly of the electrical system shall comply with the provisions of JB/T9655 in addition to the provisions of this standard. 5.2.7 The hook shall comply with the provisions of GB10051. 5.3 Balancing performance
When the balancing crane is unloaded or loaded, it shall comply with the following provisions: 5.3.1 The hook shall be balanced in any vertical section (such as octagon aa'bbcc'dd' in Figure 4) in the working space. 5.3.2 When the balance crane is under rated load, the hook in Figure 4AAaa', ABbb' shall comply with the provisions of Table 7.
Note: 1 Aa' =Bb=Cc' =Dd=0.16AB 2 Aa=Bb' =Cc=Dd' =0.16AD
3ee'ff" are the longitudinal and transverse symmetry axes of rectangle ABCD respectively. 4 1e=3e' =0.5Aa
5 4f-2f' =0.5Aa
Rated lifting weight kg
Maximum radial unbalance force N
5.4 Operating force
Maximum radial operating force and maximum tangential operating force shall comply with the provisions of Table 8. Table 8
Rated lifting weight kg
Maximum radial operating force N
Maximum tangential operating force N
Maximum radial unbalance force in △Ddd” shall be
Any vertical position in the working space in Figure 4|| tt||≤100
≤100
Manufacturer and user
Agreed by both parties
Manufacturer and user
Agreed by both parties
5.5 Performance
JB/T10218—2000
5.5.1 Under rated load conditions, the maximum radial unbalance force of the balancing crane shall comply with the provisions of Table 7, and the maximum radial operating force and tangential maximum operating force shall comply with the provisions of Table 8.
5.5.2 When the balancing crane is subjected to dynamic load test, it shall be able to withstand the test load of 1.1 times the rated load. After the test, the joints shall not be loose and the oil tank shall not leak.
5.5.3 When the balancing crane is subjected to static load test, it shall be able to withstand the test load of 1.25 times the rated load. After the test, the main load-bearing parts shall be free of cracks and permanent deformation.
5.6 Safety protection
5.6.1 The product should have a reliable overload protection device. When the actual load exceeds 1.1 times the rated load, the overload protection device should work (if the rated lifting weight is 50 or 100kg, the allowable overload is relaxed to 20kg). 5.6.2 The upper and lower limit points of the vertical stroke should have reliable limit devices. 5.7 Electrical system
The electrical system should be safe and reliable, with obvious grounding devices. The resistance between the grounding protection terminal and any related device of the control equipment and the components that may be energized due to insulation damage shall not be greater than 0.12, and the electrical box shall have a lightning mark (). The insulation resistance between the live circuit in the control equipment and the ground (when the control circuit is not directly grounded) shall not be less than 1MQ. 5.8 Working environment
5.8.1 The temperature should generally be within the range of -20℃~+40℃, and the hydraulic type should be within the range of -10℃～+40℃. 5.8.2 The altitude shall not exceed 1000m.
5.8.3 The voltage waveform is a sine wave, and the voltage amplitude fluctuation does not exceed ±10% of the rated value. 5.9 Appearance
The appearance should be flat and smooth, and there should be no depressions, protrusions and other defects not specified in the drawings. The processed surface should not have bumps, scratches and rust. The paint surface should comply with the provisions of JB/T4328.9, and its accuracy level should reach Class II. 6 Test method
Before the test, it should be leveled according to the requirements of 5.2.6.1 and inspected before other tests. 6.1 Appearance inspection
Visual inspection meets the requirements of Article 5.9. The accuracy level of the product surface paint is tested by the paint surface accuracy comparison sample comparison method. 6.2 The detection method of the maximum working radius, vertical stroke and lifting speed is shown in Table 9. Table 9
Accuracy or graduation value
Test position and method
Qualified conditions
Maximum working radius
Measured along the f” line without load
Length ruler
Vertical stroke
Length ruler
Any vertical section in the working space (see Figure 4) measured along the ee line without load
Not less than the specified value of the measured object
Lifting speed
For rated lifting weight, test the rise and fall for 5 times respectively and take the average value.
The measured statistical value is not less than the maximum value required by the design
See Table 10 for the rotation angle detection.
Rotation angle
Graduation value
Detection method
Calculation formula
Qualified conditions
JB/T 10218-2000
Length ruler
Turn the hook rotation center left and right around the balance crane rotation center to the limit position, and measure the distance between the two limit points at the maximum working radius K=L/R Where: L—distance between the two limit points R—maximum working radius
The test methods for rated load test, dynamic load test, and static load test are shown in Table 11. No-load test,
Precision or resolution
Test purpose
Test location and method
Qualified conditions
No-load test
Check the conduction
condition of the electrical device and the assembly of each component
Carry out lifting and lowering along the ee' line
Rated load test
Rated load test block
Check the balance Usability of balancing crane
Dynamic load test
Dynamic load test block
No load, actual operation
Can work normally
Static load test
Static load test block
Inspect the working performance of each mechanism of balancing crane
In the working space, take any vertical section as shown in Figure 41 and move according to the requirements of 5.3 and 5.4, and carry out braking test. The rotation center of the hook is placed in the octagon
aa'bb'ce' dd'Any
position, keep balance
flexible operation, accurate limit
, reliable braking, in accordance with
the provisions of 5.3.1 of this standard
perform lifting and lowering movements, horizontal
operation and rotational movements at least 3 times
in accordance with 5.3 and 5.4 of this standard
at 1.Under the test load of 1 times the rated load, carry out lifting, horizontal, rotary and every range of motion to check the balance strength and the permanent strength of the main force-bearing parts. At the maximum working radius, load steadily and slowly to 1.2 times the rated load, lift along the ee' line, the height does not exceed 200mm, start and stop, the number of cycles is not less than 3 times, the static test time is not less than 10 minutes, and the overload amount shall not be less than 30kg.
Measure the dimensional accuracy of the main load-bearing components before and after the test
and they are operating normally, and the braking is reliable, which complies with the provisions of 5.5.2
of this standard
Complies with the provisions of 5.5.3
of this standard
6.5 See Table 12 for the detection of balance performance and operating force. Item
Graduation value
Load condition
Test method
Qualified condition
Balance area
Balance performance
JB/T 10218-2000
Unbalance force
Radial operating force
Operating force
Tangential operating force
Spring dynamometer 100N
On any vertical section taken in the working space, as shown in Figure 1AAaa', ABbb'△
1, 2, 3, 4, 5
The rotation centers of the hook are placed at points 1, 2, 3,
4, and 5 respectively. Carry out the test of overload protection device without imbalance phenomenon. In the four triangles of Ccc'△Ddd', randomly select one point ao, bo, co, do in each triangle. Points 1, 2, 3, 4, and 5 are placed at ao, bo, co, and do respectively at rated load. Measure the minimum radial direction of each point opposite to the imbalance movement direction to keep the weight balanced. All measured values meet the requirements of 5.3.2 of this standard. The hook rotation center is placed at 1, 2, 3, 4, and 5 points respectively. The dynamometer is hung on the hook. The minimum force of the heavy object moving in the radial direction pointing to and away from the rotation center is measured at each point. The hook rotation center is placed at 2 and 4 points respectively. The minimum force of the heavy object moving in the horizontal plane perpendicular to the radial direction and in two opposite directions is measured at each point. All measured values meet the requirements of 5.4 of this standard. Lift a test block with 1.1 times the rated load and inspect the overload protection device, which meets the requirements of 5.6.1. 6.7 The upper and lower limit point limit devices of the vertical stroke are tested according to Figure 4. They are operated along the ee' line when they are unloaded and rated load, respectively, and meet the requirements of 5.6.2. 6.8 Electrical system inspection
According to Figure 4, run along the ee' line at no-load and rated load in turn, and meet the requirements of 5.7. 7
Inspection rules
7.1 Each product must be inspected and qualified by the technical inspection department of the manufacturer and accompanied by a product quality certificate before it can leave the factory. 7.2 Product inspection is divided into factory inspection and type test. 7.3 Factory inspection includes the following items:
a) Technical parameter inspection:
Vertical stroke
Horizontal stroke
Lifting speed
Maximum working radius
Rotation angle
b) No-load test:
Rated load test:
d) Dynamic load test;
Test of overload protection device:
JB/T10218-2000
f) Test of upper and lower limit point limit device of vertical stroke; g) Electrical system inspection;
h) Appearance inspection.
7.4 Type test
7.4.1 Type test shall be conducted in any of the following cases: a) before the production of new products is evaluated;
b) when there are major changes in the design, process or materials used that affect the product performance; c) when production is suspended for more than one year and when it is put into production again; d) under normal production conditions, it shall be conducted every two years. 7.4.2 For type test sampling inspection, random sampling method shall be adopted, and the number of samples shall not be less than 2 units. 7.4.3 If any item fails to meet the standards during the inspection, it is allowed to double the sampling in the batch of products, and re-inspect the unqualified items. If they still fail to meet the standards, the batch of products shall be judged to be unqualified. 7.4.4 Type test items include:
a) factory inspection;
b) static load test.
8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The product label shall include the following contents: manufacturer name, product name, model, machine weight, advertisement number, year and month of manufacture. 8.1.2 The technical performance label shall include the following contents: overall dimensions, rated lifting capacity, maximum working radius, vertical stroke, rotation angle, lifting speed, motor model and power, etc. 8.1.3 It is allowed to combine the product label and technical performance label into one label. 8.1.4 The outside of the packaging box shall be marked with the manufacturer name, product name, model, gross weight, net weight, center of gravity, position, lifting mark, overall dimensions of the packaging box, etc.
8.1.5 The packaging label shall comply with the provisions of GB/T13384. 8.2 Packaging
8.2.1 The packaging box drawings and technical documents shall comply with the provisions of GB/T13385. 8.2.2 Rainproof measures shall be taken inside the packaging box. 91 times rated load test block, to check the overload protection device, in compliance with the provisions of 5.6.1. 6.7 The test of the upper and lower limit point limit devices of the vertical stroke shall be carried out according to Figure 4, at no-load and rated load, respectively, along the ee' line, in compliance with the provisions of 5.6.2. 6.8 Electrical system inspection
According to Figure 4, it shall be carried out along the ee' line at no-load and rated load, in compliance with the provisions of 5.7. 7
Inspection rulesbzxz.net
7.1 Each product shall be inspected and qualified by the technical inspection department of the manufacturer, and shall be accompanied by a product quality certificate before it can leave the factory. 7.2 Product inspection is divided into factory inspection and type test. 7.3 Factory inspection includes the following items:
a) Technical parameter inspection:
Vertical stroke
Horizontal stroke
Lifting speed
Maximum working radius
Rotation angle
b) No-load test:
Rated load test:
d) Dynamic load test;
Test of overload protection device:
JB/T10218-2000
f) Test of upper and lower limit point limit device of vertical stroke; g) Electrical system inspection;
h) Appearance inspection.
7.4 Type test
7.4.1 Type test shall be conducted in any of the following cases: a) before the production of new products is evaluated;
b) when there are major changes in the design, process or materials used that affect the product performance; c) when production is suspended for more than one year and when it is put into production again; d) under normal production conditions, it shall be conducted every two years. 7.4.2 For type test sampling inspection, random sampling method shall be adopted, and the number of samples shall not be less than 2 units. 7.4.3 If any item fails to meet the standards during the inspection, it is allowed to double the sampling in the batch of products, and re-inspect the unqualified items. If they still fail to meet the standards, the batch of products shall be judged to be unqualified. 7.4.4 Type test items include:
a) factory inspection;
b) static load test.
8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The product label shall include the following contents: manufacturer name, product name, model, machine weight, advertisement number, year and month of manufacture. 8.1.2 The technical performance label shall include the following contents: overall dimensions, rated lifting capacity, maximum working radius, vertical stroke, rotation angle, lifting speed, motor model and power, etc. 8.1.3 It is allowed to combine the product label and technical performance label into one label. 8.1.4 The outside of the packaging box shall be marked with the manufacturer name, product name, model, gross weight, net weight, center of gravity, position, lifting mark, overall dimensions of the packaging box, etc.
8.1.5 The packaging label shall comply with the provisions of GB/T13384. 8.2 Packaging
8.2.1 The packaging box drawings and technical documents shall comply with the provisions of GB/T13385. 8.2.2 Rainproof measures shall be taken inside the packaging box. 91 times rated load test block, to check the overload protection device, in compliance with the provisions of 5.6.1. 6.7 The test of the upper and lower limit point limit devices of the vertical stroke shall be carried out according to Figure 4, at no-load and rated load, respectively, along the ee' line, in compliance with the provisions of 5.6.2. 6.8 Electrical system inspection
According to Figure 4, it shall be carried out along the ee' line at no-load and rated load, in compliance with the provisions of 5.7. 7
Inspection rules
7.1 Each product shall be inspected and qualified by the technical inspection department of the manufacturer, and shall be accompanied by a product quality certificate before it can leave the factory. 7.2 Product inspection is divided into factory inspection and type test. 7.3 Factory inspection includes the following items:
a) Technical parameter inspection:
Vertical stroke
Horizontal stroke
Lifting speed
Maximum working radius
Rotation angle
b) No-load test:
Rated load test:
d) Dynamic load test;
Test of overload protection device:
JB/T10218-2000
f) Test of upper and lower limit point limit device of vertical stroke; g) Electrical system inspection;
h) Appearance inspection.
7.4 Type test
7.4.1 Type test shall be conducted in any of the following cases: a) before the production of new products is evaluated;
b) when there are major changes in the design, process or materials used that affect the product performance; c) when production is suspended for more than one year and when it is put into production again; d) under normal production conditions, it shall be conducted every two years. 7.4.2 For type test sampling inspection, random sampling method shall be adopted, and the number of samples shall not be less than 2 units. 7.4.3 If any item fails to meet the standards during the inspection, it is allowed to double the sampling in the batch of products, and re-inspect the unqualified items. If they still fail to meet the standards, the batch of products shall be judged to be unqualified. 7.4.4 Type test items include:
a) factory inspection;
b) static load test.
8 Marking, packaging, transportation, storage
8.1 Marking
8.1.1 The product label shall include the following contents: manufacturer name, product name, model, machine weight, advertisement number, year and month of manufacture. 8.1.2 The technical performance label shall include the following contents: overall dimensions, rated lifting capacity, maximum working radius, vertical stroke, rotation angle, lifting speed, motor model and power, etc. 8.1.3 It is allowed to combine the product label and technical performance label into one label. 8.1.4 The outside of the packaging box shall be marked with the manufacturer name, product name, model, gross weight, net weight, center of gravity, position, lifting mark, overall dimensions of the packaging box, etc.
8.1.5 The packaging label shall comply with the provisions of GB/T13384. 8.2 Packaging
8.2.1 The packaging box drawings and technical documents shall comply with the provisions of GB/T13385. 8.2.2 Rainproof measures shall be taken inside the packaging box. 9
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