Anti-shaking protection device for flexible part of elevator

Abstract

The invention discloses an anti-shaking protection device for flexible parts of an elevator. The anti-shaking protection device comprises an auxiliary traction system, a first flexible part limiting device and a second flexible part limiting device. The auxiliary traction system comprises a driving motor, an auxiliary traction wheel, an auxiliary guide wheel and an auxiliary steel wire rope; the auxiliary steel wire rope is hung on an auxiliary traction wheel and an auxiliary guide wheel which are arranged at the upper part of the hoistway in a closed ring shape, and is tensioned through a pair of auxiliary guide wheels which are arranged at the lower part of the hoistway; the auxiliary guide wheel arranged on the upper portion of the hoistway is close to the lift car side guide rail, and the auxiliary guide wheel arranged on the lower portion of the hoistway coincides with the auxiliary guide wheel arranged on the upper portion of the hoistway in the vertical direction, so that the side, close to the lift car side guide rail, of the auxiliary steel wire rope is parallel to the lift car side guide rail. The first flexible part limiting device is arranged on the upper portion of the lift car, fixedly connected with the auxiliary steel wire rope and driven by the auxiliary steel wire rope to move up and down along the lift car side guide rail, and the moving direction is the same as that of the lift car. The first flexible part limiting device is always located at a first fixed proportion position from the car to the top of the shaft in the shaft, and is used for limiting the shaking range of a traction steel wire rope at the upper part of the car; the second flexible part limiting device is arranged on the lower portion of the lift car, fixedly connected with the auxiliary steel wire rope and driven by the auxiliary steel wire rope to move up and down along the lift car side guide rail, and the moving direction is the same as that of the lift car. And the second flexible part limiting device is always located at a second fixed proportion position from the car to the bottom of the shaft in the shaft, and is used for limiting the shaking range of a compensation rope or a traveling cable at the lower part of the car.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, and in particular to an anti-sway protection device for a flexible component of an elevator. Background Art

[0002] In strong winds, super high-rise buildings will sway significantly. Under the influence of the building sway, the flexible components of the elevator (traction wire rope, compensation wire rope, speed limiter wire rope, accompanying cable) will also sway significantly. When the elevator is running under such circumstances, there is a risk of hooking / entanglement of the flexible components. For this reason, high-speed elevators in super high-rise buildings generally take control of operation, that is, the elevator will be stopped when a large sway of the flexible components is detected. However, stopping the elevator will interrupt the vertical transportation of the building, leading to customer complaints.

[0003] Chinese patent document CN202121329955.3 discloses a technical solution, which includes an elevator shaft, a guide groove is provided on the inner wall of the elevator shaft, a traveling cable is installed inside the elevator shaft, a guide mechanism is installed between the guide groove and the traveling cable, and the guide mechanism includes a guide block, a guide tooth plate and a C-shaped card plate, and the C-shaped card plate is movably sleeved on the outer surface of the traveling cable. When the device is in use, a guide groove is provided on the inner wall of the elevator shaft, and a C-shaped card plate is sleeved on the outer surface of the traveling cable, so that when the traveling cable moves, the C-shaped card plate moves along the guide groove, reducing the traveling cable in the traditional device without any protective device, so that it is easy to shake when moving with the car, causing the traveling cable to collide with other parts in the elevator shaft and cause damage. The disclosed technology has the following problems: 1) The anti-sway device only has an anti-sway effect on the part of the traveling cable close to the hoistway wall side, and does not have an anti-sway effect on the part of the traveling cable close to the car side, and the traveling cable still has the risk of collision and hooking. 2) When the shaft is too high, the effect of reducing the shaking of the flexible component is not obvious. 3) The limit device is driven by the flexible component (travel cable) rather than by itself, which poses a risk of jamming.

[0004] Chinese patent document CN202120163135.5 discloses a technical solution, in which an H-frame is fixedly connected to the top of the elevator body, and pulleys are arranged at the bottom of both sides of the H-frame. Pulleys are hinged to the top of the elevator body through connecting blocks and axle pins, and the front and rear sides of the top of the H-frame are fixedly connected with fixed plates. A wire rope body is arranged on the top of the elevator body, and the surface of the wire rope body contacts the surface of pulley one. The disclosed technology has the following problems: 1) When the well is too high, the effect of reducing the shaking of the flexible parts is not obvious. 2) Under the shaking of the building, the flexible parts of the elevator (traction wire rope, compensation wire rope, speed limiter wire rope, accompanying cable) will also shake greatly. Only reducing the shaking of the car body cannot reduce the shaking of the flexible parts caused by the shaking of the building. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an elevator flexible component anti-sway protection device, including an auxiliary traction system, a first flexible component limiting device and a second flexible component limiting device;

[0006] The auxiliary traction system comprises a driving motor, an auxiliary traction wheel, an auxiliary guide wheel and an auxiliary steel wire rope;

[0007] The auxiliary steel wire rope is suspended in a closed loop on the auxiliary traction wheel and the auxiliary guide wheel placed at the upper part of the hoistway, and is tensioned by a pair of auxiliary guide wheels placed at the lower part of the hoistway; the auxiliary guide wheel placed at the upper part of the hoistway is adjacent to the car side guide rail, and an auxiliary guide wheel at the lower part of the hoistway overlaps with the auxiliary guide wheel placed at the upper part of the hoistway in the vertical direction, so that the auxiliary steel wire rope is parallel to the car side guide rail on the side adjacent to the car side guide rail;

[0008] The first flexible component limiting device is arranged on the upper part of the car, fixedly connected to the auxiliary steel wire rope, and driven by the auxiliary steel wire rope, runs up and down along the car side guide rail, and the running direction is the same as that of the car; the first flexible component limiting device is always located in the first fixed proportional position from the car to the top of the hoistway in the hoistway, and is used to limit the swing range of the traction steel wire rope on the upper part of the car;

[0009] The second flexible component limiting device is arranged at the lower part of the car and is fixedly connected to the auxiliary steel wire rope. Driven by the auxiliary steel wire rope, it runs up and down along the car side guide rail, and the running direction is the same as that of the car; the second flexible component limiting device is always located in the second fixed proportional position from the car to the bottom of the hoistway, and is used to limit the shaking range of the compensating rope or accompanying cable at the lower part of the car.

[0010] Preferably, the auxiliary traction system further comprises an auxiliary steel wire rope limiting device; the auxiliary steel wire rope limiting device is fixed on the hoistway wall or the car side guide rail adjacent to the auxiliary steel wire rope at preset intervals to limit the auxiliary steel wire rope.

[0011] Preferably, the auxiliary steel wire ropes include a first auxiliary steel wire rope and a second auxiliary steel wire rope, the first auxiliary steel wire rope is adjacent to one car side guide rail, and the second auxiliary steel wire rope is adjacent to the other car side guide rail.

[0012] Preferably, the first flexible component limiting device comprises a limiting rod and a roller, the limiting rod has an opening for the traction wire rope to pass through, and the roller is arranged around the limiting rod opening.

[0013] Preferably, the second flexible component limiting device comprises a limiting rod and a roller, the limiting rod has an opening for the compensation rope or accompanying cable to pass through, and the roller is arranged around the limiting rod opening.

[0014] Preferably, the elevator flexible component anti-sway protection device includes at least two first flexible component limiting devices and at least two second flexible component limiting devices; the first fixed ratios of the first flexible component limiting devices are different, and the second fixed ratios of the second flexible component limiting devices are different.

[0015] Preferably, the first fixed ratio is 1 / 4, 1 / 2 or 3 / 4; the second fixed ratio is 5 / 6, 2 / 3 or 1 / 2.

[0016] The present invention also provides an elevator flexible component anti-sway protection device, comprising an auxiliary traction system, a first flexible component limiting device and a second flexible component limiting device;

[0017] The auxiliary traction system comprises a driving motor, an auxiliary traction wheel, an auxiliary guide wheel and an auxiliary steel wire rope;

[0018] The auxiliary steel wire rope is suspended in a closed loop on the auxiliary traction wheel and the auxiliary guide wheel placed at the upper part of the well, and is tensioned by a pair of auxiliary guide wheels placed at the lower part of the well; the auxiliary guide wheel placed at the upper part of the well is adjacent to the counterweight side guide rail, and an auxiliary guide wheel at the lower part of the well overlaps with the auxiliary guide wheel placed at the upper part of the well in the vertical direction, so that the auxiliary steel wire rope is parallel to the counterweight side guide rail on the side adjacent to the counterweight side guide rail;

[0019] The first flexible component limiter is arranged on the upper part of the counterweight, fixedly connected to the auxiliary steel wire rope, and driven by the auxiliary steel wire rope, runs up and down along the side guide rail of the counterweight, and the running direction is the same as that of the counterweight; the first flexible component limiter is always located in the first fixed proportional position from the counterweight to the top of the hoistway in the hoistway, and is used to limit the swing range of the traction steel wire rope on the upper part of the counterweight;

[0020] The second flexible component limiting device is arranged at the lower part of the counterweight and is fixedly connected to the auxiliary steel wire rope. Driven by the auxiliary steel wire rope, it runs up and down along the side guide rail of the counterweight, and the running direction is the same as that of the counterweight. The second flexible component limiting device is always located in the second fixed proportional position from the counterweight to the bottom of the hoistway, and is used to limit the shaking range of the compensating rope or accompanying cable at the lower part of the counterweight.

[0021] Compared with the prior art, the present invention has the following technical effects:

[0022] 1) The flexible component limiting device of the present invention can move in the vertical direction, avoiding interference with the car and the counterweight during use;

[0023] 2) The flexible component limiting device of the present invention has an independent driving system, rather than relying on the flexible component to drive the limiting device to move, which significantly reduces the risk of jamming;

[0024] 3) The present invention can flexibly set multiple limit devices in the vertical direction, which is not affected by the excessive height of the well, and can ensure that the flexible components are protected in the entire well. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0026] Figure 1 It is a schematic diagram of the first arrangement of the auxiliary traction system of the elevator flexible component anti-sway protection device of Example 1;

[0027] Figure 2 A schematic diagram of a second arrangement of the auxiliary traction system of the elevator flexible component anti-sway protection device of Example 1;

[0028] Figure 3 A schematic diagram of a third arrangement of the auxiliary traction system of the elevator flexible component anti-sway protection device of Example 1;

[0029] Figure 4 It is a schematic structural diagram of a first flexible component limiting device and a second flexible component limiting device of an elevator flexible component anti-sway protection device of Example 1;

[0030] Figure 5 It is a schematic diagram of the anti-sway protection device for elevator flexible components of Example 1 when the car is at the bottom of the hoistway;

[0031] Figure 6 It is a schematic diagram of the anti-sway protection device for elevator flexible components of Example 1 when the car is in the middle of the hoistway;

[0032] Figure 7 It is a schematic diagram of the anti-sway protection device for elevator flexible components of Example 1 when the car is at the top of the hoistway;

[0033] Figure 8 It is a schematic diagram of each auxiliary traction sheave diameter corresponding to each first fixed ratio and second fixed ratio when the auxiliary traction sheave of the elevator flexible component anti-sway protection device of Example 1 rotates at the same speed as the elevator traction sheave. DETAILED DESCRIPTION

[0034] The following describes the implementation methods of the present invention through specific specific embodiments, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific implementation methods, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the overall design concept of the invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other in the absence of conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art.

[0035] Example 1

[0036] The structure of a traction elevator is usually as follows Figure 5 As shown in the part in the figure, there is a traction machine with a traction wheel 10, a guide wheel 11, a traction wire rope 14, a car 12, a counterweight 13, a car side guide rail 3 and a counterweight side guide rail (not shown in the figure). The traction wire rope 14 is suspended on the traction wheel 10, one end of which is connected to the car 12, and the other end crosses the guide wheel 11 to connect the counterweight 13. The car 12 is guided by the car side guide rail, and the counterweight 13 is guided by the counterweight side guide rail. The flexible parts of the elevator include the traction wire rope 14, the compensation rope 16 or the accompanying cable 15. The compensation rope 16 can be a compensation wire rope, a compensation cable or a compensation chain, which is connected to the lower part of the car 12 and the lower part of the counterweight 13 to compensate for the weight of the traction wire rope. The accompanying cable 15 is connected to the lower part of the car 12 and the control cabinet 17 to transmit power and signals.

[0037] The elevator flexible component anti-sway protection device provided in this embodiment includes an auxiliary traction system, a first flexible component limiting device and a second flexible component limiting device.

[0038] Figure 1 The figure shows a layout structure of an auxiliary traction system, which includes a driving motor, an auxiliary traction wheel 1, an auxiliary guide wheel 2 and an auxiliary steel wire rope 5; the auxiliary traction wheel 1 is driven by the driving motor to drive the auxiliary steel wire rope 5 to run.

[0039] Figure 1As shown, the auxiliary steel wire rope 5 is suspended in a closed loop on an auxiliary traction wheel 1 and an auxiliary guide wheel 2 placed at the upper part of the shaft, and is tensioned by a pair of auxiliary guide wheels 2 placed at the lower part of the shaft; the auxiliary guide wheel 2 placed at the upper part of the shaft is adjacent to the car side guide rail 3, and an auxiliary guide wheel 2 at the lower part of the shaft overlaps with the auxiliary guide wheel 2 placed at the upper part of the shaft in the vertical direction, so that the auxiliary steel wire rope 5 is parallel to the car side guide rail 3 on the side adjacent to the car side guide rail; in this example, the car side guide rail 3 adjacent to the auxiliary guide wheel 2 is farther away from the traction wheel 1. Figure 2 Another arrangement structure of the auxiliary traction system is shown. In this example, the car side guide rail 3 adjacent to the auxiliary guide wheel 2 is closer to the traction wheel 1.

[0040] Another structure of the auxiliary traction system is as follows Figure 3 As shown, the auxiliary steel wire rope 5 includes a first auxiliary steel wire rope and a second auxiliary steel wire rope, the first auxiliary steel wire rope is adjacent to one car side guide rail, and the second auxiliary steel wire rope is adjacent to another car side guide rail. And the auxiliary traction system also includes an auxiliary steel wire rope limiting device 7; the auxiliary steel wire rope limiting device 7 is fixed on the hoistway wall or the car side guide rail adjacent to the auxiliary steel wire rope at a preset distance to limit the auxiliary steel wire rope 5.

[0041] like Figures 5 to 7 As shown, the first flexible component limiting devices 6-1, 6-2, and 6-3 are arranged on the upper part of the car, fixedly connected to the auxiliary steel wire rope 5, and driven by the auxiliary steel wire rope 5, they run up and down along the car side guide rail 3, and the running direction is the same as that of the car 12; the first flexible component limiting devices 6-1, 6-2, and 6-3 are always located in the first fixed proportional position from the car to the top of the hoistway in the hoistway, and are used to limit the swing range of the traction steel wire rope 14 on the upper part of the car;

[0042] The second flexible component limiting devices 6-4, 6-5, and 6-6 are arranged at the lower part of the car and are fixedly connected to the auxiliary steel wire rope 5. Driven by the auxiliary steel wire rope 5, they run up and down along the car side guide rail 3, and the running direction is the same as that of the car 12; the second flexible component limiting devices 6-4, 6-5, and 6-6 are always located in the second fixed proportional position from the car to the bottom of the hoistway, and are used to limit the shaking range of the compensating rope 16 or the accompanying cable 15 at the lower part of the car.

[0043] Each first flexible component limiting device or second flexible component limiting device is driven by an independent auxiliary traction wheel 1 and auxiliary steel wire rope 5. For elevator systems with a lower lifting height, only one first flexible component limiting device and a second flexible component limiting device can be set, and the first fixed ratio and the second fixed ratio are preferably 1 / 2. For elevator systems with a higher lifting height, only multiple first flexible component limiting devices and second flexible component limiting devices can be set, and the first fixed ratios of each first flexible component limiting device are different, and the second fixed ratios of each second flexible component limiting device are different, so as to avoid interference between the limiting devices. If three first flexible component limiting devices and second flexible component limiting devices are taken as an example, the first fixed ratio is 1 / 4, 1 / 2 or 3 / 4; the second fixed ratio is 5 / 6, 2 / 3 or 1 / 2.

[0044] In order to realize the change of the position of the first flexible component limiting device and the second flexible component limiting device in the hoistway with the position of the car, the ratio of the linear velocity of the auxiliary steel wire rope 5 to the linear velocity of the traction steel wire rope 14 can be used to determine the ratio of the wheel diameter d of the auxiliary traction wheel 1 to the traction wheel 10 multiplied by the rotational speed v.

[0045] Taking the first fixed ratio as 1 / 4, 1 / 2 or 3 / 4; the second fixed ratio as 5 / 6, 2 / 3 or 1 / 2 as an example, the ratios of the linear velocity of the auxiliary steel wire rope 5 to the linear velocity of the traction steel wire rope 14 are 1 / 4, 1 / 2, 3 / 4, 5 / 6, 2 / 3, 1 / 2 respectively. When the rotation speeds of the auxiliary traction wheel 1 and the traction wheel 10 are both v and the wheel diameter of the traction wheel 10 is d, the wheel diameter of the auxiliary traction wheel 1 should be set to 1 / 4d, 1 / 2d, 3 / 4d, 5 / 6d, 2 / 3d, 1 / 2d. Figure 8 As shown, under the premise that the auxiliary traction wheel 1 and the traction wheel 10 have the same rotation speed v, the auxiliary traction wheel 1 that drives multiple first flexible component limiting devices and second flexible component limiting devices can be coaxially combined.

[0046] The structure of the first flexible component limiting device or the second flexible component limiting device can be as follows: Figure 4 As shown, the second flexible component limiting device includes a limiting rod 8 and a roller 9. The limiting rod 8 has an opening for the compensation rope 16 and an opening for the accompanying cable 15 to pass through. The roller 9 is arranged around the limiting rod opening.

[0047] The structure of the first flexible component limiting device can be completely the same as that of the second flexible component limiting device to maintain universality, and can also be provided with only an opening for the traction wire rope 14 in the middle as needed.

[0048] Figure 4The figure also shows the connection positions of the auxiliary steel wire rope 5 and the first flexible component limiting device and the second flexible component limiting device, as well as the exemplary structure of the auxiliary steel wire rope limiting device 7.

[0049] Example 2

[0050] The elevator flexible component anti-sway protection device of Example 1 can be transplanted and used on the counterweight side.

[0051] This embodiment provides an elevator flexible component anti-sway protection device, including an auxiliary traction system, a first flexible component limiting device and a second flexible component limiting device;

[0052] The auxiliary traction system comprises a driving motor, an auxiliary traction wheel, an auxiliary guide wheel and an auxiliary steel wire rope;

[0053] The auxiliary steel wire rope is suspended in a closed loop on the auxiliary traction wheel and the auxiliary guide wheel placed at the upper part of the well, and is tensioned by a pair of auxiliary guide wheels placed at the lower part of the well; the auxiliary guide wheel placed at the upper part of the well is adjacent to the counterweight side guide rail, and an auxiliary guide wheel at the lower part of the well overlaps with the auxiliary guide wheel placed at the upper part of the well in the vertical direction, so that the auxiliary steel wire rope is parallel to the counterweight side guide rail on the side adjacent to the counterweight side guide rail;

[0054] The first flexible component limiter is arranged on the upper part of the counterweight, fixedly connected to the auxiliary steel wire rope, and driven by the auxiliary steel wire rope, runs up and down along the side guide rail of the counterweight, and the running direction is the same as that of the counterweight; the first flexible component limiter is always located in the first fixed proportional position from the counterweight to the top of the hoistway in the hoistway, and is used to limit the swing range of the traction steel wire rope on the upper part of the counterweight;

[0055] The second flexible component limiting device is arranged at the lower part of the counterweight and is fixedly connected to the auxiliary steel wire rope. Driven by the auxiliary steel wire rope, it runs up and down along the side guide rail of the counterweight, and the running direction is the same as that of the counterweight. The second flexible component limiting device is always located in the second fixed proportional position from the counterweight to the bottom of the hoistway, and is used to limit the shaking range of the compensating rope or accompanying cable at the lower part of the counterweight.

[0056] The auxiliary traction system also includes an auxiliary steel wire rope limiting device; the limiting device is fixed at a preset distance on the shaft wall or on the counterweight side guide rail adjacent to the auxiliary steel wire rope to limit the auxiliary steel wire rope. The auxiliary traction system includes a first auxiliary steel wire rope and a second auxiliary steel wire rope, the first auxiliary steel wire rope is adjacent to one counterweight side guide rail, and the second auxiliary steel wire rope is adjacent to another counterweight side guide rail.

[0057] The first flexible component limiting device includes a limiting rod and a roller, the limiting rod has an opening for the traction wire rope to pass through, and the roller is arranged around the limiting rod opening. The second flexible component limiting device includes a limiting rod and a roller, the limiting rod has an opening for the compensation cable to pass through, and the roller is arranged around the limiting rod opening.

[0058] The elevator flexible component anti-sway protection device includes at least two first flexible component limiting devices and at least two second flexible component limiting devices; the first fixed ratios of the first flexible component limiting devices are different, and the second fixed ratios of the second flexible component limiting devices are different. The first fixed ratio is 1 / 4, 1 / 2 or 3 / 4; the second fixed ratio is 5 / 6, 2 / 3 or 1 / 2.

[0059] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. An anti-sway protection device for elevator flexible parts, characterized in that: It includes an auxiliary traction system, a first flexible component limiting device and a second flexible component limiting device; The auxiliary traction system comprises a driving motor, an auxiliary traction wheel, an auxiliary guide wheel and an auxiliary steel wire rope; The auxiliary steel wire rope is suspended in a closed loop on the auxiliary traction wheel and the auxiliary guide wheel placed at the upper part of the hoistway, and is tensioned by a pair of auxiliary guide wheels placed at the lower part of the hoistway; the auxiliary guide wheel placed at the upper part of the hoistway is adjacent to the car side guide rail, and an auxiliary guide wheel at the lower part of the hoistway overlaps with the auxiliary guide wheel placed at the upper part of the hoistway in the vertical direction, so that the auxiliary steel wire rope is parallel to the car side guide rail on the side adjacent to the car side guide rail; The first flexible component limiting device is arranged on the upper part of the car, fixedly connected to the auxiliary steel wire rope, and driven by the auxiliary steel wire rope, runs up and down along the car side guide rail, and the running direction is the same as that of the car; the first flexible component limiting device is always located in the first fixed proportional position from the car to the top of the hoistway in the hoistway, and is used to limit the swing range of the traction steel wire rope on the upper part of the car; The second flexible component limiting device is arranged at the lower part of the car and is fixedly connected to the auxiliary steel wire rope. Driven by the auxiliary steel wire rope, it runs up and down along the car side guide rail, and the running direction is the same as that of the car; the second flexible component limiting device is always located in the second fixed proportional position from the car to the bottom of the hoistway, and is used to limit the shaking range of the compensating rope or accompanying cable at the lower part of the car.

2. The elevator flexible component anti-sway protection device according to claim 1, characterized in that: The auxiliary traction system also includes an auxiliary steel wire rope limiting device; the auxiliary steel wire rope limiting device is fixed on the hoistway wall or the car side guide rail adjacent to the auxiliary steel wire rope at preset intervals to limit the auxiliary steel wire rope.

3. The elevator flexible component anti-sway protection device according to claim 1, characterized in that: The auxiliary steel wire ropes include a first auxiliary steel wire rope and a second auxiliary steel wire rope, the first auxiliary steel wire rope is adjacent to one car side guide rail, and the second auxiliary steel wire rope is adjacent to the other car side guide rail.

4. The elevator flexible component anti-sway protection device according to claim 1, characterized in that: The first flexible component limiting device comprises a limiting rod and a roller. The limiting rod is provided with an opening for the traction wire rope to pass through, and the roller is arranged around the limiting rod opening.

5. The elevator flexible component anti-sway protection device according to claim 1, characterized in that: The second flexible component limiting device comprises a limiting rod and a roller. The limiting rod is provided with an opening for the compensation rope or accompanying cable to pass through, and the roller is arranged around the limiting rod opening.

6. The elevator flexible component anti-sway protection device according to claim 1, characterized in that: The elevator flexible component anti-sway protection device comprises at least two first flexible component limiting devices and at least two second flexible component limiting devices; the first fixed ratios of the first flexible component limiting devices are different, and the second fixed ratios of the second flexible component limiting devices are different.

7. The elevator flexible component anti-sway protection device according to claim 1, characterized in that: The first fixed ratio is 1 / 4, 1 / 2 or 3 / 4; the second fixed ratio is 5 / 6, 2 / 3 or 1 / 2. 8.An anti-sway protection device for elevator flexible parts, characterized in that: It includes an auxiliary traction system, a first flexible component limiting device and a second flexible component limiting device; The auxiliary traction system comprises a driving motor, an auxiliary traction wheel, an auxiliary guide wheel and an auxiliary steel wire rope; The auxiliary steel wire rope is suspended in a closed loop on the auxiliary traction wheel and the auxiliary guide wheel placed at the upper part of the well, and is tensioned by a pair of auxiliary guide wheels placed at the lower part of the well; the auxiliary guide wheel placed at the upper part of the well is adjacent to the counterweight side guide rail, and an auxiliary guide wheel at the lower part of the well overlaps with the auxiliary guide wheel placed at the upper part of the well in the vertical direction, so that the auxiliary steel wire rope is parallel to the counterweight side guide rail on the side adjacent to the counterweight side guide rail; The first flexible component limiter is arranged on the upper part of the counterweight, fixedly connected to the auxiliary steel wire rope, and driven by the auxiliary steel wire rope, runs up and down along the side guide rail of the counterweight, and the running direction is the same as that of the counterweight; the first flexible component limiter is always located in the first fixed proportional position from the counterweight to the top of the hoistway in the hoistway, and is used to limit the swing range of the traction steel wire rope on the upper part of the counterweight; The second flexible component limiting device is arranged at the lower part of the counterweight and is fixedly connected to the auxiliary steel wire rope. Driven by the auxiliary steel wire rope, it runs up and down along the side guide rail of the counterweight, and the running direction is the same as that of the counterweight. The second flexible component limiting device is always located in the second fixed proportional position from the counterweight to the bottom of the hoistway, and is used to limit the shaking range of the compensating rope or accompanying cable at the lower part of the counterweight.

9. The elevator flexible component anti-sway protection device according to claim 8, characterized in that: The auxiliary traction system also includes an auxiliary steel wire rope limiting device; the limiting device is fixed to the hoistway wall or the counterweight side guide rail adjacent to the auxiliary steel wire rope at preset intervals to limit the auxiliary steel wire rope.

10. The elevator flexible component anti-sway protection device according to claim 8, characterized in that: The auxiliary traction system includes a first auxiliary steel wire rope and a second auxiliary steel wire rope, wherein the first auxiliary steel wire rope is adjacent to one counterweight side guide rail, and the second auxiliary steel wire rope is adjacent to another counterweight side guide rail.

11. The elevator flexible component anti-sway protection device according to claim 8, characterized in that: The first flexible component limiting device comprises a limiting rod and a roller. The limiting rod is provided with an opening for the traction wire rope to pass through, and the roller is arranged around the limiting rod opening.

12. The elevator flexible component anti-sway protection device according to claim 8, characterized in that: The second flexible component limiting device comprises a limiting rod and a roller. The limiting rod is provided with an opening for the compensation cable to pass through, and the roller is arranged around the limiting rod opening.

13. The elevator flexible component anti-sway protection device according to claim 8, characterized in that: The elevator flexible component anti-sway protection device comprises at least two first flexible component limiting devices and at least two second flexible component limiting devices; the first fixed ratios of the first flexible component limiting devices are different, and the second fixed ratios of the second flexible component limiting devices are different.

14. The elevator flexible component anti-sway protection device according to claim 8, characterized in that: The first fixed ratio is 1 / 4, 1 / 2 or 3 / 4; the second fixed ratio is 5 / 6, 2 / 3 or 1 / 2.

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