20 ton winch is widely used for lifting and dragging material in different places, such as workshop, port, mine, construction site, workstation. The winch has compact structure, easy operation, high safety, reliable performance, factory price.
For speed, the winch includes slow speed winch and high speed winch; for application purpose, the winch has mining winch, free piling winch, constant tension winch, friction winch.
Our company, a professional winch supplier in China, provides top quality winches for sale. Our winches are designed and produced according to national standards. Except for winches, our company also provides other industrial devices, such as overhead crane, gantry crane, jib crane, electric flat transfer cart, automated car parking system, electric hoist. If you are interested, just contact with us!
AQ-JM Type Winch
Loading capacity: 0.5~200 t;
Wire rope capacity: 20~3600 m;
Working speed: 5~20 m/min;(single/dual speed)
Power supply: 220-690V,50/60HZ,3Phase;
Noise control of the industrial winch
1.Chassis. We considered that chassis design and manufacture is the cause of noise:
(1)chassis adopts box-type structure, not all welds are continuous welding, the length of each chassis weld, high and low position is different, chassis rigid larger individual differences, others resonate effect, machines such as vibration noise would be amplified;
(2)chassis is welded from steel plate. It does not have shock absorption and noise elimination function. If its natural frequency and gear meshing frequency is close, it may cause some machines due to weak vibration of the gear to cause greater vibration, causing the rise of noise value. We conducted tests on the above possibilities respectively.
However, through three experiments, it was found that the noise level was weakly correlated with chassis structure, stiffness, frequency and other factors, while the noise level was correlated with strong moving parts. Therefore, the chassis design, construction and manufacturing quality were not the reasons for excessive noise.
2. Bearing clearance. It is considered that since the noise is accompanied by the drum assembly and transmission parts, then it may be caused by the large clearance of the drum sliding bearing. We select the matching clearance of the drum parts to ensure that the bearing hole and spindle clearance meet the requirements of the drawing, and conduct the test after assembly. The variable frequency motor is used to adjust speed and observe the effect of speed on noise.
A large number of test results show that the speed of the noise is the first, the higher the speed of the drum, the greater the noise value, the more intense the vibration of the machine; The larger the clearance between the spindle and the sleeve, the greater the noise. The chassis has the least impact on noise. If the noise of the machine is very low, the change of the speed and the size of the main shaft clearance will not produce too much noise, which shows that the excessive noise is not caused by the large bearing clearance.
AQ-JM Type Winch
Loading capacity: 0.5~200 t;
Wire rope capacity: 20~3600 m;
Working speed: 5~20 m/min;(single/dual speed)
Power supply: 220-690V,50/60HZ,3Phase;
Check list of 20 ton winch
1.Whether the circuit breaker, fuse, switch and socket of the power distribution box and switch box match with the motor power of the hoist, whether the grounding mode (device) meets the design requirements of temporary electricity consumption at the construction site, and whether the three-phase current balance of the motor and the current deviation of each phase meet the provisions;
2.After the winch installation, take no-load test and load test. Any part of the body must ensure that the smooth operation, no beat, too much noise, truss, little voice transmission gear cannot use cyclical change, brakes, clutch, flexible operation, test before they can be put into use;
3. Comply with the requirements of the drum winding wire rope, wire rope drum diameter, and the diameter of wire rope on the drum should be ordered layered thick stick (not too tight or too loose), do not stick to run or pulling wire rope, pulling anchor listed (wind) with the wire rope end must add insurance rope card (safety requirements),;
4.Whether the installation position of the winch is flat, solid and open, and can be sunshade and rainproof, whether the winch body is stable, whether the strength and stiffness of the load-bearing derrick meet the requirements, and whether the ground anchor or the foundation of the winch can ensure the stability of the winch;
5.The winch shall establish a regular maintenance system and account, with the first-level maintenance not exceeding 300 working hours and the second-level maintenance not exceeding 600 working hours. Power shall be cut off during routine maintenance inspection;
6.Winch operators must pass the professional training examination and hold the certificate to work, be familiar with the structure and performance of the winch, have the knowledge of daily use and maintenance, operate smoothly and do not overload;
7. Check the reliability of wire rope, clutch, safety ratchet, transmission pulley and electro-mechanical control device before daily work.8. Smooth operation in strict accordance with operating procedures.
AQ-JMM Winch
Loading capacity: 0.5~100t;
Wire rope capacity: 20~5000 m;
Working speed: 5~20 m/min;
Power supply: 220-690V,50/60HZ,3Phase
The operation of 20 ton winch
Winch shall not be used to transport personnel.
Windlass operating in the open air shall have rainproof measures.
The installation site of the hoist shall be flat, the connection with the foundation or under frame shall be firm, and it shall comply with the provisions of the operation manual.
Winch installation should be fixed pulley alignment, wire rope outline deviation alpha inspection provisions:
1)Natural rope arrangement: a ≤1°30 ‘;
2)Rope arrangement: a ≤2°
3) For the light reel, the distance from the center of the reel to the guide wheel should not be less than 20 times the length of the reel; for grooved reels, the distance from the center of the reels to the guide wheel should not be less than 15 times the length of the reels.
When the winch is used to lift heavy objects, it shall install the limit switch of ascending stroke and be sensitive and reliable. According to the construction situation, such as the use of overload protection, over-speed protection and descending stroke limit switch, it shall ensure its sensitivity and reliability.
The protective cover of the exposed transmission part shall be complete and intact.
Short circuit and overload protection, loss of voltage protection, zero protection device should be sensitive and reliable.8. Pulley and wire rope should match.
