Elevator compensation rope tensioning device

Abstract

The utility model relates to an elevator compensation rope tensioning device which comprises two hanging plates oppositely arranged on the two sides of a buffer and a car guide rail, two diversion sheave sets arranged between the two hanging plates, guide shoes installed on the outer sides of the hanging plates and fixed guide rails arranged on one sides of the guide shoes. Each diversion sheave set comprises a first diversion sheave and a second diversion sheave which are oppositely arranged, the first diversion sheaves and the second diversion sheaves are fixed between the two hanging plates through installation shafts, avoiding space is formed between the first diversion sheaves and the second diversion sheaves, and the buffers and the car guide rails are arranged in the avoiding space. The anti-interference device is simple in structure and convenient to install while avoiding interference between the anti-interference device and the car guide rail and the buffer, and can save the space of a hoistway and reduce the manufacturing cost.

Description

Technical Field

[0001] The utility model relates to an elevator compensation rope tensioning device. Background Art

[0002] In the field of elevator technology, particularly in the design of medium- and high-speed elevators, the use of compensating ropes is crucial for balancing the weight difference between the car and the counterweight, and reducing vibration and noise during elevator operation. To ensure the stability and safety of the compensating ropes during operation, a compensating rope tensioner is typically installed in the pit. However, when the counterweight is positioned sideways, this design faces a technical challenge: spatial interference between the compensating rope tensioner and the car guide rails and buffers can affect the normal operation and safety of the elevator.

[0003] At present, several technical solutions have been proposed to address this technical problem, but each has certain limitations:

[0004] 1. Raised guide rail solution: This solution increases the guide rail installation height to provide sufficient space for the compensating rope tensioner and prevent interference with the car guide rails and buffers. However, this solution requires the construction of an additional raised base, which not only increases the complexity of the installation process but also significantly increases the cost. Furthermore, the raised guide rail may affect the overall structure of the elevator shaft, requiring additional structural design and verification.

[0005] 2. Dual Tensioner Solution: To avoid spatial interference, another solution is to use two sets of compensating rope tensioners. While this solution theoretically solves the problem, the need for two sets of tensioners not only increases the complexity of installation and commissioning, but also significantly increases the overall cost of the elevator. Furthermore, the use of two sets of tensioners can also pose additional challenges to elevator maintenance and management.

[0006] 3. Rear-positioned counterweight and inclined tensioner: To save space, one proposal is to place the counterweight rearward and the compensating rope tensioner at an angle. While this solution addresses the spatial interference issue to some extent, it occupies more hoistway space, potentially restricting the elevator's hoistway design and layout. Furthermore, the inclined tensioner can introduce some inconvenience during maintenance and inspection. Utility Model Content

[0007] The purpose of the utility model is to provide an elevator compensating rope tensioning device which can avoid interference with the car guide rails and buffers and has a simple structure, is easy to install and has low manufacturing cost.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator compensation rope tensioning device, comprising two hanging plates relatively arranged on both sides of a buffer and a car guide rail, two groups of deflection pulley groups arranged between the two hanging plates, guide shoes installed on the outside of the hanging plates and fixed guide rails arranged on one side of the guide shoes, each group of the deflection pulley groups comprising a first deflection pulley and a second deflection pulley arranged relatively, the first deflection pulley and the second deflection pulley being fixed between the two hanging plates by an installation shaft, an avoidance space being formed between the first deflection pulley and the second deflection pulley, and the buffer and the car guide rail being arranged in the avoidance space.

[0009] Furthermore, the elevator compensation rope tensioning device also includes a limiting device for limiting the moving position of the hanging plate.

[0010] Furthermore, the limit device includes a trigger switch and two limit frames, the trigger switch is mounted on the hanging plate, and the two limit frames are arranged at both ends of the fixed guide rail along the longitudinal direction of the fixed guide rail.

[0011] Furthermore, the trigger switch is mounted on the hanging plate via a fixing plate.

[0012] Furthermore, the first deflection pulley and the second deflection pulley are respectively arranged close to the two hanging plates.

[0013] Furthermore, the centers of the buffer and the car guide rail are located on the central axis of the avoidance space.

[0014] Furthermore, the distances between the first deflecting pulley, the second deflecting pulley and the adjacent hanging plates are equal.

[0015] Furthermore, the connecting line of the two guide shoes is defined as a central axis, and the two groups of the anti-ropes are symmetrically arranged on both sides of the central axis.

[0016] The beneficial effect of the present invention is that two sets of deflection pulley groups are arranged between the two hanging plates, and an avoidance space for arranging buffers and car guide rails is formed in each set of deflection pulley groups through the first deflection pulley and the second deflection pulley. In this way, it can not only meet the purpose of arranging an elevator compensation rope tensioning device in a high-altitude elevator, but also meet the installation space of the buffer and the car guide rail, avoiding interference. That is, while avoiding interference with the car guide rail and the buffer, the structure is simple and the installation is convenient, and it can save shaft space and reduce manufacturing costs.

[0017] In addition, since each set of return rope pulleys is set as the first return rope pulley and the second return rope pulley, the avoidance space between the two can be set according to the size requirements of the car, so the elevator compensation rope tensioning device can adapt to different cars, thereby improving its applicability.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of an elevator compensating rope tensioning device in use according to one embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] See Figure 1The elevator compensating rope tensioning device shown in a preferred embodiment of the present application includes two cladding plates 11 disposed oppositely on either side of a buffer 20 and a car guide rail 30, two return pulley assemblies 12 disposed between the two cladding plates 11, guide shoes 13 mounted on the outside of the cladding plates 11, and fixed guide rails 14 disposed on one side of the guide shoes 13. Each return pulley assembly 12 includes a first return pulley 121 and a second return pulley 122 disposed oppositely. The first return pulley 121 and the second return pulley 122 are fixed between the two cladding plates 11 via a mounting shaft 15. An escape space (unnumbered) is formed between the first return pulley 121 and the second return pulley 122, and the buffer 20 and the car guide rail 30 are arranged in the escape space.

[0024] In this embodiment, two groups of deflection pulleys 12 are arranged between the two hanging plates 11, and an avoidance space for arranging the buffer 20 and the car guide rail 30 is formed in each group of deflection pulleys 12 by the first deflection pulley 121 and the second deflection pulley 122. In this way, the purpose of arranging the elevator compensation rope tensioning device in the high-rise elevator can be met, and the installation space of the buffer 20 and the car guide rail 30 can be met, and interference can be avoided. That is, while avoiding interference with the car guide rail 30 and the buffer 20, the structure is simple and the installation is convenient, and it can save shaft space and reduce manufacturing costs.

[0025] In addition, since each set of return pulleys 12 is set as the first return pulley 121 and the second return pulley 122, the avoidance space between the two can be set according to the size requirements of the car, so the elevator compensation rope tensioning device can adapt to different cars, thereby improving its applicability.

[0026] It should be noted that the elevator compensating rope tensioning device is located below the counterweight and the car. In this way, there is no need to raise the car guide rail 30 and it can be directly installed in the pit.

[0027] For ease of description, in this embodiment, the two cladding plates 11 are designated as the first cladding plate 11 and the second cladding plate 11, respectively. The first deflection pulley 121 is located near the first cladding plate 111, and the second deflection pulley 122 is located near the second cladding plate 112. The distance between the first deflection pulley 121 and the first cladding plate 111 is equal to the distance between the second deflection pulley 122 and the second cladding plate 112. The centers of the buffer 20 and the car guide rails 30 are located on the central axis of the clearance space. There are two sets of guide shoes 13: the first guide shoe and the second guide shoe. The first guide shoe is mounted on the first cladding plate 111, and the second guide shoe is mounted on the second cladding plate 112. There are also two sets of fixed guide rails 14, located outside the two guide shoes 13, and the guide shoes 13 mate with the fixed guide rails 14. The first guide shoe and the second guide shoe are mounted on the central axis of the first cladding plate 111 and the second cladding plate 112, respectively. The line connecting the first guide shoe and the second guide shoe is the central axis, and the two deflection pulley sets 12 are symmetrically arranged on either side of the central axis. With the above arrangement, the center of gravity can be stabilized.

[0028] In this embodiment, the elevator compensating rope tensioning device further includes sealing plates 17 arranged on both sides of the first hanging plate 111 and the second hanging plate 112 .

[0029] The elevator compensating rope tensioning device also includes a limit device 18 for limiting the movement of the hanging plate 11. In this way, the limit device prevents the elevator compensating rope tensioning device from exceeding the allowable height range. Specifically, the limit device 18 includes two limit frames 181 and a trigger switch 182. The trigger switch 182 is mounted on the hanging plate 11 via a fixed plate 19. In the height direction (which is the same as the longitudinal direction of the fixed guide rail 14), the trigger switch 182 is located in the middle of the hanging plate 11. In this embodiment, the trigger switch 182 is fixed to the first hanging plate 11. The two limit frames 181 are arranged at both ends of the fixed guide rail 14 along the longitudinal direction of the fixed guide rail 14. The limit frames 181 have an L-shaped plate structure. When the trigger switch 182 contacts one of the limit frames 181, the elevator stops running. The trigger switch 182 can be a conventional travel switch in the prior art, such as a contact travel switch, which will not be described in detail here. Of course, in other embodiments, the limiting device 18 may also be other mechanisms, such as a photoelectric switch.

[0030] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An elevator compensating rope tensioning device, characterized in that: The invention comprises two hanging plates relatively arranged on both sides of the buffer and the car guide rail, two groups of deflection pulley groups arranged between the two hanging plates, guide shoes installed on the outside of the hanging plates and fixed guide rails arranged on one side of the guide shoes, each group of the deflection pulley groups comprises a first deflection pulley and a second deflection pulley relatively arranged, the first deflection pulley and the second deflection pulley are fixed between the two hanging plates through a mounting shaft, an avoidance space is formed between the first deflection pulley and the second deflection pulley, and the buffer and the car guide rail are arranged in the avoidance space.

2. The elevator compensating rope tensioning device according to claim 1, characterized in that: The elevator compensation rope tensioning device also includes a limiting device for limiting the moving position of the hanging plate.

3. The elevator compensating rope tensioning device according to claim 2, characterized in that: The limit device includes a trigger switch and two limit frames. The trigger switch is installed on the hanging plate. The two limit frames are arranged at both ends of the fixed guide rail along the longitudinal direction of the fixed guide rail.

4. The elevator compensating rope tensioning device according to claim 3, characterized in that: The trigger switch is mounted on the hanging plate via a fixing plate.

5. The elevator compensating rope tensioning device according to claim 1, characterized in that: The first deflection pulley and the second deflection pulley are respectively arranged close to the two hanging plates.

6. The elevator compensating rope tensioning device according to claim 5, characterized in that: The centers of the buffer and the car guide rail are located on the central axis of the avoidance space.

7. The elevator compensating rope tensioning device according to claim 6, characterized in that: The first deflecting pulley, the second deflecting pulley and the adjacent hanging plates are equidistant from each other.

8. The elevator compensating rope tensioning device according to claim 6, characterized in that: The connecting line of the two guide shoes is defined as a central axis, and the two groups of anti-ropes are symmetrically arranged on both sides of the central axis.

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