This standard specifies the classification, technical requirements and test methods, inspection rules, marking, packaging, transportation and storage of lifeboat winches. This standard applies to winches in lifeboat launching devices. The prime mover of the winch can be electric, hydraulic or pneumatic. GB/T 4445-1994 Lifeboat winch GB/T4445-1994 standard download decompression password: www.bzxz.net

T:1C:623-124-6-474.23
1: 22
National Standard of the People's Republic of China
GB/T 4445—94
Winchcs for lifeboats
1994-07-19
Implementation on 1995-04-01
Issued by the State Bureau of Technical Supervision
National Standard of the People's Republic of China
Lifeboat winches
Winchex for lifeboats
1 Subject content and scope of use
GB/T4445—94
Operation 4-34
This standard defines the classification, technical requirements and test methods for the inspection status, packaging, transportation and purchase recommendations of lifeboats (hereinafter referred to as winches).
The standard of the vehicle is to be used for the teaching vehicle (used as a tunnel release vehicle) in the medical lowering and lowering equipment. The prime mover of the vehicle can be electric, hydraulic or pneumatic.
2 Reference standard
H3893 Shipboard buckle service package, technical application
GB4208 External expansion grade classification of explosives
3 Terminology
This notation adopts GB 33 torque. The special six-language standard is as follows 3.1 Load,
Lifting load shield, speed governor setting load, overload and dumping load, 3.2 Lifting load
The load borne by the steel cable on the vehicle during the life-saving period. 3.3 Regulator setting load
When the vehicle is temporarily lowered, the load borne by the steel cable on the vehicle. 3.4 Overturn load
, the load borne by the vehicle when the boat is lightly loaded and the gantry is turned over. 3.5 Overhang load
, the load borne by the vehicle when the boat is not loaded and the gantry is turned over. 3.6 Overturn load
, the sum of the specified loads and the general loads. 3.7 The specified loads and the sum of the specified loads are the sum of the two loads. 3.8 Nominal specifications
, the values ​​are expressed in kN. 3.9 Right-hand and left-hand vehicles
, the design of the vehicle is the left-hand vehicle, and the brake force is the right-hand vehicle. Approved by the State Administration of Industry and Commerce on July 19, 1991: 195-04-1: Product classification 1. Classic model Zhengbei school bus GB/I 444594
One model, install the car mouth plate point (see Figure 1b.B type -
One back model: diamond on the hanging frame (see Figure 2) Figure 1A type
1.2 Follow 4 to find the original meaning number (see Table 13
Total complaint format
Work F cargo loading
4.3 Product labeling form
Central type+
Guangpin Mingtao
4.4 Standard example
GBT4445-94
Characteristic code
One left type
Nominal specification, see 4.2
Type code. See 4.1
Anti-species code
Drive type code||t t||3N, type A, automatic life-saving vehicle: SA5ZG45-94
5 Technical requirements
5.1 Performance
5.1. The driving efficiency of the vehicle will be released with a speed of not less than 0.m
5-1.2 The speed of the lifeboat in the slow or slow state should be in accordance with the formula? 1> The maximum descent rate should be in accordance with the provisions of the China Ship Inspection Bureau
=01+02×F
The maximum descent speed of the lifeboat is:
The distance from the finished product to the water is not designed, m. 1
5.1.3 When the lifeboat is lowered without a crew, the The total amount should be determined in grams. The rope, the wheel and other expansion forces should meet the requirements of the Chinese stock inspection. When the remote control device is installed, one person should be allowed to board the simulated life-saving operation mode.
5.? The material should be
5.2.! The stress of the parts should not exceed 4.5. 5.2.2 The parts of the brake assembly should be strong enough to withstand a load of not less than 1.5 times the normal working load. Other parts should have sufficient strength to withstand 2.3 working loads.
5.3 Design
5.3.1 If the design of the brake assembly is double or separate, some parts must not be designed in two. The double ropes shall be raised and lowered synchronously. 5.3.2 The length of the reel shall not exceed three layers on the whole rope system. The wire rope shall be evenly wound, and the outer wire shall not exceed one-third of the total length of the reel. The wire groove shall not exceed 65% on the single-sided sharp angle, and shall not exceed 3 on the smooth side. 5.3.3 The reel diameter shall not be less than 16 times the diameter of the rope. 5.3.4 When the steel is fully wound on the reel, the convex height shall be 1.5 times the outer diameter of the wire strand. 5.4 Design of low-speed and low-speed equipment
5.4.1 The winch design shall be able to control the lowering speed of the winch. 5.4.? The brake device of the winch shall be able to support 1.5 working loads and safely brake the speed governor. For dynamic loads, the method must be sufficient, and only when the operator is allowed to operate the brake device, can the other person release the brake. 5.5 For dynamic loads: 5.5.1 The crane should be equipped with a manual device. The device can have one or two hand wheels or lower wheels, suitable for manual operation. The radius of the hand wheel shall not be greater than 40mm. 5.5.2 When the amplitude is lowered or the power is activated, the handle or hand wheel shall not be turned. 5.5-3 When manually connecting the lifting load, the single-person force shall not exceed 50. 5.5.4 There must be a manual change of the steel rope. 5.6 Interlocking device
When the rescue is under the first strange situation or the head is under the force, the manual table does not make the manual table correct or lightly rotate. 5. The wire rope should be rotated and the auxiliary wire rope should be used. When the general wire rope is used, there must be a real rotation signal. The minimum deceleration effect of the wire rope is 6.
-5.8 Control
5.8.1 The winch should be able to be electrically operated and manually operated: the brake device can also be controlled. 5.8.2 The winch can automatically return to the "stop" position when the winch is under the power of the winch. 5.9 Lubrication
The lubrication surface and the film can be lubricated within the installation position of more than 2G and the skin. 6 Motor overload
The motor is allowed to be overloaded by 10 under the condition of large negative distance? Test method
7.1 Air test
Test the vehicle without wire rope in forward and reverse direction! Din, check the start, stop, manual and power-driven interlocking functions
7.2 Lifting test
Lift the lifting load to the inspection height. It is allowed to use equivalent load and speed sensor. Make the following test record during the test. Input power:
h. Lifting section on the roll:
Brake device needs to work properly
7.3 Downward speed control test
7.3.1 At the speed governor set load or lower, perform the required downward return test in 1.2, which shall not be less than twice. During the test, the vehicle must be lowered 1-2m before the vehicle is lowered, and the descent quality is measured at an effective height of 8m. The equivalent load and width are allowed. The following records are made during the test: descent speed:
b. Braking condition
, the connection between manual drive and or force descent 7.3.2 The vehicle must be lowered 1-2m before the vehicle is lowered, and the speed change is measured at an effective height of 8m. The equivalent load is allowed.
The descent speed should be measured at the constant speed during the descent process, that is, the descent speed can be measured at the beginning of the descent in 5-1 seconds.
7.4 Dynamic load test
Use the speed regulator of 3:1 to set the load for the descending test. When the load reaches the maximum descending speed and the distance is at least m, brake suddenly. The test load after the dynamic sliding shall not be left behind! , at least two tests. 7.5 Two load tests
Lift the working load off the ground
7.6 Support brake test
When the outer copper wire is used to measure the load with a 1.5 regulator, the reel should not rotate. It is also necessary to test the old Bo soft inspection. After a slow rotation, it can be stopped by the brake device for 1.According to the test standard of CB/T 4445-S4, the lifting load is higher than the ground by 31m11.3 Inspection rules 81 Delivery inspection The vehicle shall be inspected according to the following items before delivery: 1. No-load test in winter: 2. Lifting test in accordance with Article 7.2! 3.3 Drop test: 4.4 Load test in accordance with Article 7.4 5-2 Type test When the vehicle is in one of the following conditions, it is necessary to conduct type inspection: a. Trial production of new products: Inspection every three years: 5.2. The product is transferred to the factory for production.
Type inspection items:
Perform air range test according to Article 7.1
Perform rising test according to Article 7.2:
Perform descending test according to Article 7.3:
Perform dynamic load test according to Article 7.
The guide bar should be subjected to working load test:
Perform holding brake test according to Article 7.6:
Perform descending test according to Article 7? Carry out manual lifting test:
After all the tests are completed, the vehicle will be pressed, 9 standards, packaging, transportation and storage
Each vehicle should have a durable, non-corrosive, non-falling protection, and the road sign should clearly indicate the following: a-
Vehicle name;
Factory name:
Product model:
Expiration date:
City factory number:
Working load:
Speed:
! Reduce quality,
Port quality:
Special machine products:
Inspection mark:
.9.2 Packaging
General vehicles should be properly packed, and the package should be accompanied by product certificate, instruction manual, ship classification product certificate, spare parts list, packing list and other information,bZxz.net
9.3 Transportation
CR/T4445—94
To avoid continuous delivery of vehicles during operation, vehicles cannot be transported in reverse, 9.4 Compared with the previous delivery, the vehicle should be stored in a dry place. If the storage period exceeds one level, it should be sealed. Additional notes:
This standard is issued by China National Tire Industry Corporation
and is under the jurisdiction of China National Tire Corporation. The standard was drafted by the Seventh Research Institute of China National Shipbuilding Corporation (the Fourth Institute) and the Seventh Research Institute of China Ship Auxiliary Machinery Factory. The drafters of this standard are Xing Guda and Li Yihua.
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