JB/T 6223-1992 Pulsator type fully automatic washing machine deceleration clutch
Some standard content:
Machinery Industry Standard of the People's Republic of China
Pulsator type fully automatic washing machine deceleration clutch 1 Subject content and scope of application
JB/T 6223—92
This standard specifies the pulsator type fully automatic washing machine Type, model, parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of the washing machine reduction clutch. This standard applies to the deceleration clutch (hereinafter referred to as the deceleration clutch) of a pulsator-type fully automatic washing machine with a washing capacity of no more than 5kg. 2 Reference standards
GB4288
GB 2828
GB2829
GB4214
Household electric washing machine and its safety requirements
Batch-by-batch inspection, counting and sampling Procedures and Sampling Table Periodic Inspection Count Sampling Procedure and Sampling Table Determination of Noise and Sound Power Level of Household Appliances
GB2423.17 Basic Environmental Testing Procedures for Electrical and Electronic Products Test Ka: Salt Spray Test Method 3 Terminology
Terminology Should comply with GB4288 Appendix D and the following provisions 3.i Input shaft input axle
The transmission shaft connected to the motor through a pulley. 3.2 Clutch axle
A transmission shaft that can be integrated with the input shaft through a clutch spring. 3.3 wave wheel axle wave wheel axle
The transmission shaft connected to the washing machine pulsator. 3.4 Dewatering axle dewatering axle
The drive shaft connected to the dewatering barrel of the washing machine. 3.5 Brake rod brake rod
A lever that uses the attraction of an electromagnet to generate or eliminate the braking effect. 4 Types, models and basic parameters
4.1 Type
4.1.1 According to the transmission mode of the reducer in the reduction clutch, it is divided into: planetary gear transmission (represented by the Chinese Pinyin letter X) a.||tt ||External meshing cylindrical gear transmission (represented by the Chinese pinyin letter W). b.
4.1.2 According to the brake type, it is divided into:
ordinary belt brake (represented by the Chinese pinyin letter P); a.
b. Elastic hoop brake (represented by the Chinese pinyin letter T). 4.2 Model and its meaning
Approved by the Ministry of Mechanical and Electronic Industry 199206--16 54
Implemented on 1993-01-01
1234-5678
Example: JLB24-5.2XPS | |tt | N represents the brake type, the reducer transmission mode according to the provisions of 4.1.2, the reduction ratio according to the provisions of 4.1.1, the rated input torque is expressed by the speed ratio of the input shaft and the pulsator shaft, and the rated input torque (N·m ) multiplied by 10 indicates that it is applicable to the pulsator-type fully automatic washing machine (represented by the Chinese Pinyin letter B) and the deceleration clutch code (represented by the Chinese Pinyin letter JL); if only the reducer is provided without the clutch mechanism and casing, 2 is not marked It indicates a reduction clutch suitable for pulsator-type fully automatic washing machines. Its rated input torque is 2.4N·m, reduction ratio is 5.2, planetary gear transmission, ordinary belt brake, and the dehydration shaft rotates clockwise. 4.3 Basic parameters
4.3.1 The selected parameter values ??should match the rated washing capacity of the matching washing machine. 4.3.2 Rated input torque N·m
4.3.3 Rated input speed r/min
4.3.4 Reduction ratio between input shaft and pulsator shaft
4.3.5 Pulsator shaft steering : Two-way (forward and reverse) 4.3.6 Dehydration shaft steering: One-way (looking towards the shaft end, clockwise or counterclockwise) 4.3.7 Braking torque N·m
4.3.8 Brake lever opening Force N
Note: Not applicable to reducers without clutch mechanism and housing. 5 Technical requirements
5.1 Usage environment
5.1.1 The ambient temperature is 0~50℃. 5.1.2 The relative humidity of the air shall not be greater than 95% (when the temperature is 25°C). 5.2 Assembly requirements
5.2.1 The input shaft and pulsator shaft should rotate flexibly without jamming. 5.2.2 Friction torque of forward and reverse rotation of the pulsator shaft: not greater than 0.45N·m. 5.2.3 When only the reducer is provided, the coaxiality of the dewatering shaft relative to the clutch shaft shall not be greater than ①0.1mm. 5.2.4 Axial clearance of pulsator shaft: no more than 0.5mm. 5.2.5 Circular runout of the working groove surface of the pulley: no more than 0.7mm. Note: Not applicable to reducers without clutch mechanism and housing. 5.2.6 When the brake lever moves 13mm along the direction of force application at the force application point, the gap between the pawl and the ratchet wheel shall not be less than 1.5mm. Note: Not applicable to reducers without clutch mechanism and housing. 5.3 Braking performance
5.3.1 Braking torque
55
a. Elastic hoop brake: 7~~11 N·mJB/T 6223-92
b． Ordinary belt brake: in the direction of dehydration operation, 6~12N·m; in the opposite direction of dehydration operation, not less than 12N·m. 5.3.2 Brake lever opening force: When the brake lever moves along the direction of force action at the force application point, the initial opening force for ordinary band brakes shall not be greater than 30N, and for elastic hoop brakes, the initial opening force shall not be greater than 20N. . Note: Not applicable to reducers without clutch mechanism and housing. 5.4 Breaking torque
The breaking torque of the deceleration clutch should not be less than 1.6 times the rated torque. 5.5 Noise
When operating under no-load condition, the noise of the reduction clutch should not be greater than 65dB (A). 5.6 Mechanical efficiency
The mechanical efficiency of the reduction clutch is not less than 86%. 5.7 Sealing performance
The reduction clutch should be well sealed and without leakage. 5.8 Appearance quality
5.8.1 Plastic parts: The surface should be smooth and smooth, with uniform color and no defects such as cracks, bubbles, shrinkage holes, flash, etc. 5.8.2 Rubber seals: The surface should be flat and smooth, and there should be no defects such as bubbles, flash, or exposed steel skeleton. 5.8.3 Exposed metal parts (except stainless steel parts): The surface should be subject to effective anti-rust treatment, such as electroplating, blackening, passivation, etc. 5.8.4 All riveted parts and threaded fasteners should be firm and reliable, and should not be loose. 5.9 The surface of electroplated parts
shall be smooth and fine, with uniform color, and shall not have defects such as peeling, bottom exposure, bubbling, obvious spots, scratches, etc. After a 24-hour test in accordance with GB2423.17, rust spots should not appear on the coating of general structural parts beyond 2 mm at edges and corners. 5.10＇Trouble-free operation
Under rated load, the cumulative number of trouble-free operations of the reduction clutch is 1,000 standard washing procedures. It should be able to continue to operate without failures after the test.
6 Test method
6.1 Test conditions
Conducted at room temperature. In case of dispute, the test shall be conducted indoors with an ambient temperature of 25 ± 5°C. 6.2 Test equipment and its accuracy
6.2.1 Timing instrument, accuracy within 0.5%. 6.2.2 Force measuring instrument with an accuracy of 1N.
6.2.3 Torque measuring instrument, the accuracy is 0.01N·m (measuring friction torque), 0.1N·m (measuring breaking torque and braking torque). 6.2.4 Length measuring instrument with an accuracy of 0.02mm. 6.2.5 Sound level meter, accuracy is ±1dB.
6.3 Assembly quality inspection
6.3.1 Flexible rotation: check by hand, it should comply with the provisions of 5.2.1. 6.3.2 Friction torque of forward and reverse rotation of the pulsator shaft: The dehydration shaft is fixed, and the pulsator shaft is rotated forward and reverse for no less than 3 turns each. Use a torque measuring instrument to measure the rotational torque, which should comply with the provisions of Article 5.2.2.
6.3.3 Coaxiality of the dehydration shaft relative to the clutch shaft: Fix the clutch shaft on the main shaft of the measuring instrument (roundness meter or similar instrument), and make the rotation axes of the two coaxial, and measure by length The instrument measuring the coaxiality of the dehydration shaft shall comply with the provisions of Article 5.2.3. 6.3.4 Axial clearance of the pulsator shaft: The dial indicator contact is in vertical contact with the end face of the pulsator shaft. Pull the pulsator shaft by hand to move axially. The maximum reading difference read by the dial indicator shall comply with the provisions of Article 5.2.4. 6.3.5 Circular runout of the working groove surface of the pulley: The deceleration clutch housing is fixed, and the dial indicator contact is in vertical contact with the working surface in the pulley groove. The maximum reading difference between the rotating pulley 56
JB/T 6223 - 92
and the dial indicator shall comply with the provisions of 5.2.5. Note: Not applicable to reducers without clutch mechanism and housing. 6.3.6 When the brake lever is opened, the gap between the pawl and the ratchet wheel: Open the brake lever so that the distance it moves along the direction of force action at the force application point is 13mm. Use a feeler gauge to measure the gap between the pawl and the ratchet wheel at this time. The clearance should comply with 5.2.6 regulations. Note: Not applicable to reducers without clutch mechanism and housing. 6.4 Braking performance measurement
6.4.1 Braking torque: Under braking, rotate the dewatering shaft according to the direction of the dehydration shaft, and use a torque measuring instrument to measure the relative movement between the dehydration shaft and the brake band (or elastic hoop) The torque in front should comply with the provisions of Article 5.3.1. 6.4.2 Brake lever opening force: Apply a force at the specified force application point on the brake lever. When the force point of the brake lever moves down 3mm, the force is the initial opening force. When measuring this force, it should comply with Clause 5.3.2. Note: Not applicable to reducers without clutch mechanism and housing. 6.5 Determination of breaking moment
Fix the dehydration shaft, rotate the input shaft, gradually load the pulsator shaft, and use a torque measuring instrument to measure the torque when the component is damaged, which should comply with the provisions of 5.4.
6.6 Noise measurement
Use a motor [matching the input speed and input torque of the reduction clutch, the noise is not greater than 50dB (A)] to drive the reduction clutch to run dry, and conduct the test according to GB4214 regulations. Test radius r=1m, should comply with the provisions of Article 5.5. 6.7 Mechanical efficiency measurement
Install the reduction clutch on the efficiency measuring instrument and measure it under rated load. It should comply with the provisions of Article 5.6. 6.8 Sealing performance measurement
Conduct a sealing water pressure test on the leakage detection instrument. The test water pressure is 4.9×10*Pa, which should comply with the provisions of Article 5.7. 6.9 Appearance quality inspection
Visual observation shall comply with the provisions of Article 5.8.
6.10 Anti-corrosion test
The test shall be carried out according to GB2423.17 and shall comply with the provisions of Article 5.9. 6.11 Trouble-free operation test
Insert the deceleration clutch into the washing machine (or on the simulation test device) and conduct it according to the provisions of GB4288 Article 3.8 and shall comply with the provisions of Article 5.10.
7 Inspection Rules
7.1 Inspection Requirements
Each reduction clutch has passed the inspection and is accompanied by a product certificate. 7.2 Inspection classification
The inspection of the reduction clutch is divided into factory inspection and type inspection. 7.3 Factory inspection
Every reduction clutch must be inspected before leaving the factory. Please see serial numbers 1, 2, 3, 7, and 8 in the inspection item table. Inspection item table
Serial country number
1
2
3
4
item
item||tt ||Assembly requirements
Braking torque
Brake lever opening forcewww.bzxz.net
Breaking torque
Class B unqualified
V
V
Category C unqualified
V
Check regulations
5.2
5.3.1
5.3.2
5.4
57
order
5
7
8
9
10
No.| |tt||Type inspection
7.4
7. 4. 1
a.
Item
Noise
Mechanical efficiency|| tt||Sealing performance
Appearance quality
Auto
Anti-corrosion test
Trouble-free operation test
JB/T 6223—92||tt| |Continued table
Class B unqualified
If the deceleration clutch falls into one of the following situations, it must undergo type inspection: a new trial-produced product;
b.
c. | |tt | 7.4.2 The type inspection of the reduction clutch includes all inspection items in the inspection item table. Category C unqualified
Check regulations
5.5
5.6
5.7
5.8
5.9
5.10|| tt||7.4.3 The sampling for type inspection adopts the secondary sampling plan in GB2829, and the judgment level is I. For Category B unqualified, the unqualified quality level RQL=30; for Category C unqualified, the unqualified quality level RQL =50. The specific sampling plan is: RQL=30
RQL=50
sub-sampling 4 units
sub-sampling 4 units
one-time sampling 4 units
two Sampling 4 units
Sampling 4 additional units for trouble-free operation testing.
Ac0
Re=2
Ac=1
Re=2
Ac=0
Re=3||tt| |Ac 3
Re= 4
7.4.4 Samples for type testing should be randomly selected from factory inspection qualified products. 7.5 Acceptance
7.5.1 The orderer shall accept according to the factory inspection items. 7.5.2 The sampling of acceptance samples shall adopt GB2828. The inspection batch size, sampling plan, inspection level and qualified quality level shall be jointly agreed upon by the manufacturer and the ordering party.
7.6 Quality guarantee period: If the reduction clutch sold is not damaged or does not work properly due to manufacturing within 18 months, it shall be repaired or replaced by the manufacturer free of charge, but it shall be from the date of shipment from the manufacturer. No more than 30 months. If the ordering parties have other requirements, they may be stipulated in the contract.
8 Marking, Packaging, Transportation and Storage
8.1 Mark
Each deceleration clutch should be marked with a permanent mark in an obvious position. The content of the mark is as follows: a. Product name and model;
b. Manufacturer's name or trademark;
58
c. Date of manufacture.
8.2 Packaging
JB/T 6223—92
8.2.1 The reduction clutch should be installed in the packaging box and supported firmly. Ensure that they do not collide with each other. 8.2.2 The packaging box should be sturdy, shock-resistant, dust-proof, and suitable for long-distance transportation. 8.2.3 The outer surface of the packaging box should have the following signs or content: a.
Product name and model,
Product quantity and weight, kg,
b.
c. Manufacturer's name and address.
8.2.4 The packaging box should be accompanied by a certificate of conformity.
8.3 Transportation and storage
8.3.1 During the transportation and storage process, it should not be dropped or exposed to rain or snow. 8.3.2 The reduction clutch should be stored in a dry and ventilated warehouse, and the surrounding air should not be Corrosive gases are present. Additional notes:
This standard is proposed and managed by the National Technical Committee for Standardization of Electrical Accessories. This standard was drafted by Guangzhou Steam Turbine Engineering Co., Ltd. The main drafters of this standard are Li Hongxing, Yang Dajun and Wu Yueqiu. 59
2 Inspection Category
The inspection of the reduction clutch is divided into factory inspection and type inspection. 7.3 Factory inspection
Every reduction clutch must be inspected before leaving the factory. Please see serial numbers 1, 2, 3, 7, and 8 in the inspection item table. Inspection item table
Serial country number
1
2
3
4
item
item||tt ||Assembly requirements
Braking torque
Brake lever opening force
Breaking torque
Class B unqualified
V
V
Category C unqualified
V
Check regulations
5.2
5.3.1
5.3.2
5.4
57
order
5
7
8
9
10
No.| |tt||Type inspection
7.4
7. 4. 1
a.
Item
Noise
Mechanical efficiency|| tt||Sealing performance
Appearance quality
Auto
Anti-corrosion test
Trouble-free operation test
JB/T 6223—92||tt| |Continued table
Class B unqualified
If the deceleration clutch falls into one of the following situations, it must undergo type inspection: a new trial-produced product;
b.
c. | |tt | 7.4.2 The type inspection of the reduction clutch includes all inspection items in the inspection item table. Category C unqualified
Check regulations
5.5
5.6
5.7
5.8
5.9
5.10|| tt||7.4.3 The sampling for type inspection adopts the secondary sampling plan in GB2829, and the judgment level is I. For Category B unqualified, the unqualified quality level RQL=30; for Category C unqualified, the unqualified quality level RQL =50. The specific sampling plan is: RQL=30
RQL=50
sub-sampling 4 units
sub-sampling 4 units
one-time sampling 4 units
two Sampling 4 units
Sampling 4 additional units for trouble-free operation testing.
Ac0
Re=2
Ac=1
Re=2
Ac=0
Re=3||tt| |Ac 3
Re= 4
7.4.4 Samples for type testing should be randomly selected from factory inspection qualified products. 7.5 Acceptance
7.5.1 The orderer shall accept according to the factory inspection items. 7.5.2 The sampling of acceptance samples shall adopt GB2828. The inspection batch size, sampling plan, inspection level and qualified quality level shall be jointly agreed upon by the manufacturer and the ordering party.
7.6 Quality guarantee period: If the reduction clutch sold is not damaged or does not work properly due to manufacturing within 18 months, it shall be repaired or replaced by the manufacturer free of charge, but it shall be from the date of shipment from the manufacturer. No more than 30 months. If the ordering parties have other requirements, they may be stipulated in the contract.
8 Marking, Packaging, Transportation and Storage
8.1 Mark
Each deceleration clutch should be marked with a permanent mark in an obvious position. The content of the mark is as follows: a. Product name and model;
b. Manufacturer's name or trademark;
58
c. Date of manufacture.
8.2 Packaging
JB/T 6223—92
8.2.1 The reduction clutch should be installed in the packaging box and supported firmly. Ensure that they do not collide with each other. 8.2.2 The packaging box should be sturdy, shock-resistant, dust-proof, and suitable for long-distance transportation. 8.2.3 The outer surface of the packaging box should have the following signs or content: a.
Product name and model,
Product quantity and weight, kg,
b.
c. Manufacturer's name and address.
8.2.4 The packaging box should be accompanied by a certificate of conformity.
8.3 Transportation and storage
8.3.1 During the transportation and storage process, it should not be dropped or exposed to rain or snow. 8.3.2 The reduction clutch should be stored in a dry and ventilated warehouse, and the surrounding air should not be Corrosive gases are present. Additional notes:
This standard is proposed and managed by the National Technical Committee for Standardization of Electrical Accessories. This standard was drafted by Guangzhou Steam Turbine Engineering Co., Ltd. The main drafters of this standard are Li Hongxing, Yang Dajun and Wu Yueqiu. 59
2 Inspection Category
The inspection of the reduction clutch is divided into factory inspection and type inspection. 7.3 Factory inspection
Every reduction clutch must be inspected before leaving the factory. Please see serial numbers 1, 2, 3, 7, and 8 in the inspection item table. Inspection item table
Serial country number
1
2
3
4
item
item||tt ||Assembly requirements
Braking torque
Brake lever opening force
Breaking torque
Class B unqualified
V
V
Category C unqualified
V
Check regulations
5.2
5.3.1
5.3.2
5.4
57
order
5
7
8
9
10
No.| |tt||Type inspection
7.4
7. 4. 1
a.
Item
Noise
Mechanical efficiency|| tt||Sealing performance
Appearance quality
Auto
Anti-corrosion test
Trouble-free operation test
JB/T 6223—92||tt| |Continued table
Class B unqualified
If the reduction clutch falls into one of the following situations, it must undergo type inspection: a new trial-produced product;
b.
c. | |tt | 7.4.2 The type inspection of the reduction clutch includes all inspection items in the inspection item table. Category C unqualified
Check regulations
5.5
5.6
5.7
5.8
5.9
5.10|| tt||7.4.3 The sampling for type inspection adopts the secondary sampling plan in GB2829, and the judgment level is I. For Category B unqualified, the unqualified quality level RQL=30; for Category C unqualified, the unqualified quality level RQL =50. The specific sampling plan is: RQL=30
RQL=50
sub-sampling 4 units
sub-sampling 4 units
one-time sampling 4 units
two Sampling 4 units
Sampling 4 additional units for trouble-free operation testing.
Ac0
Re=2
Ac=1
Re=2
Ac=0
Re=3||tt| |Ac 3
Re= 4
7.4.4 Samples for type testing should be randomly selected from factory inspection qualified products. 7.5 Acceptance
7.5.1 The orderer shall accept according to the factory inspection items. 7.5.2 The sampling of acceptance samples shall adopt GB2828. The inspection batch size, sampling plan, inspection level and qualified quality level shall be jointly agreed upon by the manufacturer and the ordering party.
7.6 Quality guarantee period: If the reduction clutch sold is not damaged or does not work properly due to manufacturing within 18 months, it shall be repaired or replaced by the manufacturer free of charge, but it shall be from the date of shipment from the manufacturer. No more than 30 months. If the ordering parties have other requirements, they may be stipulated in the contract.
8 Marking, Packaging, Transportation and Storage
8.1 Mark
Each deceleration clutch should be marked with a permanent mark in an obvious position. The content of the mark is as follows: a. Product name and model;
b. Manufacturer's name or trademark;
58
c. Date of manufacture.
8.2 Packaging
JB/T 6223—92
8.2.1 The reduction clutch should be installed in the packaging box and supported firmly. Ensure that they do not collide with each other. 8.2.2 The packaging box should be sturdy, shock-resistant, dust-proof, and suitable for long-distance transportation. 8.2.3 The outer surface of the packaging box should have the following signs or content: a.
Product name and model,
Product quantity and weight, kg,
b.
c. Manufacturer's name and address.
8.2.4 The packaging box should be accompanied by a certificate of conformity.
8.3 Transportation and storage
8.3.1 During the transportation and storage process, it should not be dropped or exposed to rain or snow. 8.3.2 The reduction clutch should be stored in a dry and ventilated warehouse, and the surrounding air should not be Corrosive gases are present. Additional notes:
This standard is proposed and managed by the National Technical Committee for Standardization of Electrical Accessories. This standard was drafted by Guangzhou Steam Turbine Engineering Co., Ltd. The main drafters of this standard are Li Hongxing, Yang Dajun and Wu Yueqiu. 59
1. The reduction clutch should be installed in the packaging box and supported firmly. Ensure that they do not collide with each other. 8.2.2 The packaging box should be sturdy, shock-resistant, dust-proof, and suitable for long-distance transportation. 8.2.3 The outer surface of the packaging box should have the following signs or content: a.
Product name and model,
Product quantity and weight, kg,
b.
c. Manufacturer's name and address.
8.2.4 The packaging box should be accompanied by a certificate of conformity.
8.3 Transportation and storage
8.3.1 During the transportation and storage process, it should not be dropped or exposed to rain or snow. 8.3.2 The reduction clutch should be stored in a dry and ventilated warehouse, and the surrounding air should not be Corrosive gases are present. Additional notes:
This standard is proposed and managed by the National Technical Committee for Standardization of Electrical Accessories. This standard was drafted by Guangzhou Steam Turbine Engineering Co., Ltd. The main drafters of this standard are Li Hongxing, Yang Dajun and Wu Yueqiu. 59
1. The reduction clutch should be installed in the packaging box and supported firmly. Ensure that they do not collide with each other. 8.2.2 The packaging box should be sturdy, shock-resistant, dust-proof, and suitable for long-distance transportation. 8.2.3 The outer surface of the packaging box should have the following signs or content: a.
Product name and model,
Product quantity and weight, kg,
b.
c. Manufacturer's name and address.
8.2.4 The packaging box should be accompanied by a certificate of conformity.
8.3 Transportation and storage
8.3.1 During the transportation and storage process, it should not be dropped or exposed to rain or snow. 8.3.2 The reduction clutch should be stored in a dry and ventilated warehouse, and the surrounding air should not be Corrosive gases are present. Additional notes:
This standard is proposed and managed by the National Technical Committee for Standardization of Electrical Accessories. This standard was drafted by Guangzhou Steam Turbine Engineering Co., Ltd. The main drafters of this standard are Li Hongxing, Yang Dajun and Wu Yueqiu. 59
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