GB/T 15032-1994 General technical requirements for rope making machinery and equipment
Some standard content:
National Standard of the People's Republic of China
General technical requirements for rope laying machinery
General requirements for rope laying machinery1 Subject content and scope of application
This standard specifies the general technical requirements for rope laying machinery (hereinafter referred to as "rope machine"). GB/T 15032-94
This standard applies to rope making machinery using sisal fiber as raw material, and also to stranding machines and rope making machines using other natural fibers and synthetic fibers as raw materials.
2 Reference standards
Basic forms and dimensions of weld grooves for gas welding, manual electric welding and gas shielded weldingBasic forms and dimensions of weld grooves for submerged arc weldingGB986
GB1300bzxz.net
GB2829
GB3768
GB4064
GB 5117
GB 5118
GB5667
GB8196
3 Terminology
Welding wire
Periodic inspection counting sampling procedure and sampling table (applicable to the inspection of production process stability) Simple method for determining the sound power level of noise source
Guidelines for safety design of electrical equipment
Carbon steel welding rod
Low alloy steel welding rod
Test methods for agricultural machinery production
Safety requirements for protective covers of mechanical equipment
3.1 Brushing
Remove impurities such as bran adhering to the fiber. 3.2 Drawing
Fiber bundles are elongated and thinned by sliding against each other in the length direction. 3.3 Drawing multiple
The ratio of the length of the fiber bundle after drawing to the length before drawing is called the drawing multiple. 3.4 Twisting
The flax strip (yarn strip, strand) rotates along the axial direction. 3.5 Turn
The flax strip (yarn strip, strand) rotates 360° along the axial direction is called a turn. 3.6 Twist
The number of turns of the flax strip (strand, rope) per unit length along the axial direction. 3.7 Carding machine
A machine that combines the laid fibers or several combed flax strips for combing and drafting to remove impurities, loosen, separate and straighten the fibers.
Approved by the Ministry of Agriculture of the People's Republic of China on April 12, 1994 and implemented on October 1, 1994
3.8 Drawing frame
GB/T 1503294
A machine that combines and drafts several flax strips that have been combed, or combines several flax strips that have been grouped and drafted, to improve the uniformity of the flax strips, further remove impurities, and make the flax strips reach a certain standard linear density. 3.9 Hackling machine
A circular combing machine that loosens, removes chaff, and removes impurities. 3.10 Spinning machine A machine that draws and twists flax strips of a certain specification into yarn strips of a certain specification linear density. 3.11 Twister
A machine that twists several monofilaments into yarn. 3.12 Yarn reversing machine A machine that arranges the yarn strips (lines) on the yarn tube in a herringbone shape to form a yarn roll. 3.13 Stranding machine A machine that arranges a number of yarn strips (lines) of a certain specification according to a certain arrangement rule and twists them into strands in the opposite twist direction of the yarn (line).
3.14 Rope laying machine A machine that twists or weaves a number of strands of a certain specification into ropes in the opposite twist direction of the strands. During the twisting process, the cradle that carries the strands does not rotate with the machine, which is called a constant spindle rope making machine; during the twisting process, the frame that carries the strands not only rotates with the machine, but also rotates, which is called a rotating spindle rope making machine. 4 Method of compiling product models
4.1 The model of the rope machine is compiled according to the principle of type and type classification. The type and model code of the rope machine are indicated by printed Chinese Pinyin initials. If there are repetitions, two representative Chinese Pinyin initials can be used to indicate it. The main parameters are used to indicate the structural characteristics of the rope machine. For series products, the series number is added after the main parameters, and a short horizontal line is used to connect the main parameters and the series number. 4.2 Rope machine model indication method
Type main parameter-serial number
Type code. L-flax processing machine; B-drawing machine; F-spinning machine; G-strand making machine, S-rope making machine; SM flax combing machine; N-thread grabbing machine; D-rewinding machine.
Type code: L-vertical, W-horizontal; H-.-constant spindle; Z-rotating spindle; Y-circular comb; P-flat comb; J-hunkler type, T-push type.
Main parameter code: needle pitch; number of tracks; number of spindles; number of heads; rope diameter (strand diameter) range code. Serial number: Indicated by Arabic numerals.
Note: The commonly used horizontal rope making machine model code W is not marked. 4.3 Model example
FW2 represents a horizontal double-spindle spinning machine;
SH5-3 represents a No. 5 3-strand constant spindle rope making machine. The rope diameter is 8~~14mm. b.
5 Technical requirements
5.1 General requirements
5.1.1 The rope machine design should meet the technical requirements of the rope making process, with a reasonable layout, beautiful shape, reliable performance, simple operation, and easy maintenance, and improve the level of serialization, generalization and standardization. 5.1.2 The rope machine should be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 5.1.3 The power and control devices on the rope machine and the special tools for installation and adjustment of accessories to ensure the basic performance of the rope machine should be matched by the manufacturer and supplied randomly.
5.2 Appearance quality
GB/T15032--94
5.2.1 The surface of the rope machine should not have obvious protrusions, depressions, roughness and other defects that are not specified in the drawings. 5.2.2 Exposed welds should be smoothed.
5.2.3 The rims of the metal handwheels and the operating handles should be plated with an anti-rust layer and polished. 5.2.4 The paint layer of the rope machine should be uniform in color, without bottom exposure, blistering or wrinkling. The working surface and electroplated surface should be coated with rust inhibitor, and the unprocessed casting surface should be coated with anti-rust primer.
5.2.5 The edges of the joint surfaces of the rope machine parts and components should be flat, and the mutual misalignment and the seams between the doors, covers and the rope machine joint surfaces should not exceed the requirements of Table 1.
Joint surface dimensions
Misalignment of joint surfaces of parts and components
Note: The mutual misalignment and clearance between the housing and cover of the gearbox shall comply with the relevant standards for gearboxes. 5.2.6 The electrical circuits and soft wire protection tubes must be arranged neatly and should not have defects such as scratches and pressure. 5.2.7 The rope machine should have signs or symbols indicating lubrication, operation, safety, etc. 5.3 Quality of castings and forgings
Joint surface gap between doors, covers and rope machines
5.3.1 The surface of the casting should be flat. The molding sand and adhesive on the casting should be cleaned, and the burrs, gates and risers should be scraped flat. 5.3.2 The casting should not have cracks. The joint surface and exposed machined surface of the casting should not have defects such as pores, sand holes, shrinkage, slag inclusions, cold shuts, etc. The surfaces of bearings, nuts, gears, worm gear crowns, thrust rings, and guide rails should not have obvious looseness. Repairs are allowed for defects in castings that do not affect the quality of use.
5.3.3 Castings should not have defects such as cracks, interlayers, folds, forging scratches, scars, slag inclusions, etc. Repairs are allowed for local defects in non-critical parts of low-carbon steel forgings.
5.4 Quality of welded parts
5.4.1 The welding rods used for welding should comply with the provisions of GB5117 and GB5118; the welding wires should comply with the provisions of GB1300. 5.4.2 The limit deviations of welded part grooves, plate assembly and welding dimensional deviations should comply with the provisions of GB985 and GB986. 5.4.3 The weld surface of welded parts should show uniform fine scales. Cracks (including parent metal), isolated pits and burn-throughs are not allowed. For general welds, there shall be no more than one pore or slag inclusion with a diameter not exceeding 2mm in a length of 100mm, and no more than three in the entire length; the length of the undercut of individual parts shall not exceed 15% of the total length of the weld, the depth of the undercut shall not exceed 5% of the plate thickness, and the maximum shall not exceed 1.5mm. 5.5 Processing quality
5.5.1 The processed parts shall not have sharp edges and corners. The intersection of the processed surface and the unprocessed surface of the guide rail shall be chamfered. The tooth end of the sliding gear shall be chamfered. The thickness of the spiral end of the worm shall be greater than 1mm. 5.5.2 The processed surface shall not have rust, brush, bumps and other defects. 5.5.3 The parts after heat treatment shall not have cracks and defects that affect performance. 5.6 Assembly quality
5.6.1 The rope machine shall be assembled according to the drawing requirements and assembly process regulations. All parts and components (including purchased parts and collaborative parts) shall meet the quality requirements.
5.6.2 All parts, components, lubrication systems, etc. should be cleaned, and there should be no chips or other dirt inside the machine. 5.6.3. The sliding and rotating parts should operate flexibly, smoothly, and without obstruction. The clearance of each part (including the bearing clearance) should comply with the drawings and relevant regulations.
5.6.4 The axial misalignment of the meshing gears shall not exceed 1.5mm. 5.6.5 The offset of the symmetric plane of the driven sprocket tooth width on the driving sprocket shall not exceed 2% of the center distance between the two sprockets; the sag of the loose side of the sprocket shall be 1% to 5% of the center distance between the two 251
sprockets.
GB/T 15032-- 94
5.6.6 The parallelism of the axes of the two V-belt pulleys shall not exceed 1% of the center distance between the two wheels; the offset of the symmetric plane of the wheel width of the two pulleys shall not exceed 0.5% of the center distance between the two wheels. Under the specified measurement load, the sag of the midpoint of the V-belt is 1.6% of the cut edge length of the two pulleys. The measuring load is shown in Table 2.
Tape type
Measurement load
9～11
15～19
25～32
5.6.7 When installing the coupling, the coaxiality of the two shafts should be calibrated to meet the requirements of the drawing. D
77～97
142~164
5.6.8 Components with high speed and large moment of inertia (such as spinning machine spindles, etc.) should be subjected to static balance test and calibration. If necessary, dynamic balance test and calibration should be carried out.
5.7 Safety protection
5.7.1 For high-speed working parts (such as rope yarn bobbins, strand cakes, etc.) and exposed rotating parts (such as gears, pulleys, etc.) that are prone to cause injury accidents, protective devices should be provided, and the protective devices should comply with the provisions of GB8196. 5.7.2 Parts that are heavy and difficult to lift and install should be equipped with lifting holes or lifting rings. Parts that may loosen during operation must be equipped with anti-loosening devices. Reciprocating parts should have limit safety devices. 5.7.3
The electrical equipment of the rope machine should comply with the provisions of GB4064. 5.7.4
Safety signs or safety colors should be installed at dangerous locations, and the end faces of exposed rotating parts should be painted dark red. 5.7.5
The noise index of the rope machine should not exceed 87dB(A). 6 Test method
The rope machine shall be subjected to no-load test and load test after the general assembly inspection is qualified. 6.1
6.2 No-load test
The no-load test shall be carried out at the specified speed for a continuous operation time of not less than 2h. 6.2.2
In the test, inspection and measurement shall be carried out according to the provisions of Table 3. Table 3
Test items
The operating mechanism should be flexible and reliable
The operation should be smooth and without abnormal noise
The safety protection device and insurance device should work reliably
The reduction box should not have oil leakage
Measure the noise
Measure the temperature of lubricating oil and bearing and the maximum temperature rise
Lubricating oil
Sliding bearing
Rolling bearing
Note: Stable temperature
6.3 Load test
Test method||t t||Visual inspection, test
Visual inspection, listening
Visual inspection, test
According to the provisions of GB3768
Lubricating oil is measured at the end of no-load. Bearings are measured at stable temperature
Testing instrument
】Sound level meter of type or above
Thermometer:
0~100℃;
Point thermometer:
0~100℃
After the rope machine has been running for a certain period of time, when its temperature rise does not exceed 5℃ per hour, it can be considered to have reached a stable temperature. GB/T 15032-94
6.3.1 Load test can only be carried out after the no-load test is qualified. 6.3.2 The load test is carried out at the specified speed and full load conditions, and the continuous working time is not less than 2h. 6.3.3 During the test, inspection and measurement shall be carried out according to the provisions of Table 4. Table 4
Test items
Work stability and reliability
No oil leakage in the reduction gearbox
Measurement of noise
Measurement of temperature of lubricating oil and bearing and maximum temperature rise
Lubricating oil
Sliding bearing
Rolling bearing 85℃
Measurement of work quality
Measurement of productivity
Measurement of power consumption
Inspection rules
7.1 Product inspection Divided into factory inspection and type inspection 7.2 Factory inspection
Test method
Visual inspection, trial test
Refer to the provisions of GB3768
Measure at the end of the test
Determine according to the rope making process requirements
Working at rated speed, processing volume or output per unit time
Working at rated speed, power consumption per unit processing volume or output
Factory inspection is the inspection of products when they are delivered from the factory, and the inspection items are: group.
The appearance quality of the product shall comply with the provisions of Article 5.2; the assembly quality of the product shall comply with the provisions of Article 5.6; b
Testing instruments
】 type or above sound level meter
Thermometer:
0～100℃
Point thermometer:
0～100℃
Stopwatch, platform scale or tape measure
Stopwatch, electric meter, etc.
c. The no-load test of the product shall comply with the provisions of Article 6.2. 7.2.2 Full inspection is implemented for factory inspection. All products shall be inspected and qualified by the quality inspection department of the manufacturer before they can be shipped, and shall be accompanied by product certificates and relevant actual measurement records.
7.2.3 Products that fail the factory inspection are allowed to be repaired, and resubmitted for inspection after repair. They can only be shipped after all items are qualified. 7.2.4 When the ordering unit accepts the product, it shall be accepted in accordance with this standard and the single-machine product standard or the order contract. In special cases, it can also be accepted at the user unit.
7.3 Type inspection
7.3.1 Type inspection shall be carried out in any of the following cases: a.
Trial design and identification of new products or old products transferred to the factory for production; after formal production, when there are major changes in design, process, materials, etc. that may affect product performance, a regular and periodic inspection during normal production; when the product resumes production after a long period of suspension.
7.3.2 Type inspection items:
Appearance quality shall comply with the provisions of Article 5.2;
Assembly quality shall comply with the provisions of 5.6.1~5.6.6, 253
GB/T15032-94
No-load test shall comply with the provisions of 1, 2, 3, 4, 6 in Table 3; load test shall comply with the provisions of 1, 2, 3, 4, 5, 6 in Table 4; noise shall comply with the provisions of 5.7.6;
Reliability test. After continuous operation for 200 hours, the reliability of the product measured according to GB5667 standard shall be greater than 90%. 7.3.3 Type inspection shall be carried out by sampling inspection according to the production batch, and the sampling method shall be in accordance with the provisions of GB2829, and a single sampling plan shall be adopted. The classification of unqualified items in type inspection shall be in accordance with Table 5. Table 5
Unqualified classification
2. Reliability in use
3. Load test
1. No-load test
1. Appearance quality
2. Assembly quality
Number of items
The sampling method and evaluation rules for type inspection shall be in accordance with Table 6. During the evaluation, each item shall be evaluated item by item. Each of A, B, and C shall be evaluated according to the cumulative number of unqualified items. If all of A, B, and C items meet the requirements of A and R, the batch of products shall be qualified; if one of A, B, and C items does not meet the requirements of A and R, the batch of products shall be unqualified. The batch of unqualified products shall be fully inspected, that is, each product shall be inspected item by item, and all qualified items shall be qualified. Unqualified items are allowed to be repaired and resubmitted for inspection.
Classification of non-conformity
Sampling method
Judgment rules
Number of samples (n)
Number of items
Judgment level
7.4 Before inspection, install and adjust the rope machine according to the requirements of the product manual so that it is in a horizontal position. During the inspection, the mechanism and parts that affect the technical performance should not be adjusted. 8 Marking and packaging
8.1 Marking
Each rope machine should have a label fixed in a conspicuous position, and the label should have the following contents: a.
Product name;
Product model and technical specifications
Manufacturer name;
Factory number;
Date of publication.
8.2 Packaging
Packing requirements
Before packaging, the exposed machined surfaces of parts and tools should be coated with anti-rust agent, and the machined surfaces of major parts should be wrapped with moisture-proof paper. Under normal transportation and storage conditions, the anti-rust validity period is at least six months from the date of product shipment; b. Waterproof materials should be laid in the packaging box;
C. Products, parts, components, tools and spare parts should be fixed in the packaging box. 8.2.2 Packaging Mark
There should be a packaging mark on the outside of the packaging box, which includes: a.
shipping address and name of the consignee;
product name and model specifications;
packaging box dimensions (length × width × height);
gross weight:
name and address of the manufacturer
factory number and date of publication,
marks such as "do not invert", "handle with care", "moisture-proof" and sling position. Random Technical Documents
For each product shipped from the factory, the manufacturer shall provide the following technical documents: a.
product instruction manual,
product certificate,
list of accessories and random tools;
packing list.
Additional Notes:
This standard is proposed by the Ministry of Agriculture of the People's Republic of China. This standard is under the jurisdiction of the Agricultural Reclamation Bureau of the Ministry of Agriculture.
This standard was drafted by the South China Tropical Crops Mechanization Research Institute, Guangdong Yuexi Agricultural Reclamation Second Machinery Factory, and the Mechanical and Electrical Department of South China Tropical Crops College.
The main drafters of this standard are Xu Naichang, Zhang Maosheng, and Xu Jiangzhou. 255
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