Multi-rope tension balance adjusting device and adjusting method

A balanced adjustment device and technology for balanced adjustment, applied in transportation and packaging, sustainable buildings, elevators, etc., can solve problems affecting riding comfort and safety, unbalanced tension of steel wire ropes, shortened life of steel wire ropes, etc., and achieve simple structure, Ease of adjustment and low cost of components

A balanced adjustment device and technology for balanced adjustment, applied in transportation and packaging, sustainable buildings, elevators, etc., can solve problems affecting riding comfort and safety, unbalanced tension of steel wire ropes, shortened life of steel wire ropes, etc., and achieve simple structure, Ease of adjustment and low cost of components

CN112357725AActive Publication Date: 2021-02-12CHINA UNIV OF MINING & TECH

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  • Multi-rope tension balance adjusting device and adjusting method
  • Multi-rope tension balance adjusting device and adjusting method
  • Multi-rope tension balance adjusting device and adjusting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The multi-rope tension equalization adjustment device of this embodiment includes several tension equalization units 1, and the tension equalization units 1 include:

[0056] hydraulic cylinder 2, which transmits torque;

[0057] Speed-up module 3, its speed-up transmission, the transmission end of speed-up module 3 is connected with hydraulic cylinder 2 transmission;

[0058] The drum 4 is connected to the other transmission end of the speed-increasing module 3 through transmission;

[0059] Elevate the wire rope 5, which is wound on the drum 4;

[0060] The hydraulic cylinders 2 of each tension equalization unit 1 communicate with each other through a communication pipeline 6 .

[0061] In this embodiment, there are multiple tension equalization units 1, such as figure 1 As shown, corresponding to the number of wire ropes in the multi-rope hoisting system, the hydraulic cylinder 2 in the tension equalization unit 1 is used to transmit torque, more specifically, to ...

Embodiment 2

[0065] The multi-rope tension balance adjusting device of this embodiment is further improved on the basis of Embodiment 1, and the hydraulic cylinder 2 is an annular hydraulic cylinder or a swing hydraulic cylinder.

[0066] This embodiment lists two specific forms of the hydraulic cylinder 2 used in this application.

[0067] Such as ring hydraulic cylinders, such as image 3 As shown, it includes a circular cylinder 20, an annular plunger 21 and a transmission shaft 22. The transmission shaft 22 can be rotated in the range of 0~180° through the oil in and out of the circular cylinder 20; similarly, the swing hydraulic The cylinder can also make the transmission shaft 22 rotate at different angles through the change of hydraulic pressure in the cylinder, and transmit torque.

[0068] The hydraulic cylinder 2 of this embodiment cooperates with the speed-increasing module 3, which can directly and effectively output torque and cause the required rotation of the drum 4. At the...

Embodiment 3

[0070] The multi-rope tension equalization adjusting device of this embodiment is further improved on the basis of Embodiment 2, and a valve 7 is provided at the connection between the hydraulic cylinder 2 and the communication pipeline 6 of each tension equalization unit 1 .

[0071] The valve 7 can control and cut off the communication state between the corresponding hydraulic cylinder 2 and other hydraulic cylinders 2. When the length difference of each lifting wire rope 5 is too large or exceeds the automatic adjustment stroke of the device, the hydraulic cylinder 2 corresponding to the lifting wire rope 5 will be lifted through the valve 7. Disconnect the connection with other hydraulic cylinders 2, rotate the drum 4 to wind the rope, and adjust each hoisting wire rope 5 individually until the tension is the same, then open the valve 7, and the multi-rope tension balance adjustment device can operate normally at this time.

[0072] In this embodiment, by adding the valve 7...

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Abstract

The invention discloses a multi-rope tension balance adjusting device and adjusting method, and belongs to the technical field of multi-rope lifting. The device comprises a plurality of tension balance units, wherein each tension balance unit comprises a hydraulic cylinder, a speed increasing module, a roller and a lifting steel wire rope; the hydraulic cylinder is used for transmitting torque, the speed increasing module is used for speed increasing transmission, one transmission end of the speed increasing module is in transmission connection with the hydraulic cylinder, the roller is in transmission connection with the other transmission end of the speed increasing module, and the lifting steel wire rope is wound on the roller; and the hydraulic cylinders of the tension balance units communicate with one another through communicating pipelines. According to the device, the mechanism that the communicating hydraulic cylinders can automatically balance the hydraulic pressure is utilized, the torque change in the hydraulic pressure balancing process is converted into the rotation of the rollers, then tension balance adjustment such as loosening or tensioning is carried out on the wound lifting steel wire ropes, large-range automatic adjustment can be realized in a limited equipment space, and the effectiveness and timeliness of tension balance adjustment can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of multi-rope lifting, and more specifically relates to a multi-rope tension balance adjustment device and an adjustment method. Background technique [0002] In the hoisting of high-speed elevators in ultra-deep shafts and super-high buildings, there are single-rope hoisting systems and multi-rope hoisting systems. The single-rope hoisting system is suitable for occasions with small loads, and the multi-rope hoisting system is suitable for heavy loads. . [0003] The current multi-rope lifting system has the phenomenon of unbalanced tension between multiple steel wire ropes, which is likely to cause damage such as broken ropes and shortened life of the steel wire ropes, seriously affecting the comfort and safety of riding. Therefore, the tension balance between multiple steel wire ropes It is very important for the experience, safety and efficiency of elevator passengers and mine hoisting. [0004] After ...

Claims

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Application Information

Patent Timeline
12 Feb 2021
Publication
CN112357725A
IPC
B66B7/10; B66B15/00; B66B15/08; B66B15/02
CPC
B66B7/10; B66B15/00; B66B15/08; B66B15/02; Y02B50/00
Inventors
曹国华; 李远东