A vibration damping device for an elevator rope

Abstract

The utility model relates to the technical field of damping device, disclose a kind of damping device of elevator rope, including base plate, the inside of base plate is provided with steel cable body, further including left and right damping component for left and right damping of the steel cable body, the left and right damping component is set in the top surface and bottom surface of the base plate, the left and right damping component includes: guide wheel frame, the guide wheel frame is respectively fixedly installed in the top surface and bottom surface of the base plate, the utility model has multidirectional damping capacity, by left and right damping component (guide wheel frame, U type wheel, double ear damper) and front and rear damping component (shock ring, damping spring) Synergistic effect, the left and right, front and rear direction vibration of steel cable body can be simultaneously buffered and inhibited, can cover the composite vibration scene of steel cable, effectively reduce the fatigue wear of steel cable body, reduce the strength of vibration transmission to car and shaft, both improve passenger ride comfort, also prolong the service life of steel cable and associated components.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction device technology, and in particular to a vibration reduction device for elevator ropes. Background Technology

[0002] As a key vertical transportation device in high-rise buildings, the elevator's steel cable body is the core component that bears the weight of the car and enables lifting and lowering operations. The operational stability of the steel cable body directly determines the elevator's safety and comfort performance.

[0003] In existing technologies, during the actual operation of elevators, the steel cable body is prone to compound vibrations in the left-right and front-back directions due to sudden tension fluctuations during startup, shutdown, or load changes. Prolonged exposure to vibration not only accelerates fatigue wear of the steel cable body but also transmits the vibrations to the car or shaft structure, causing abnormal noises during elevator operation, reducing passenger comfort, and shortening the service life of the steel cable and related components within the shaft. Therefore, there is an urgent need for a vibration damping device for elevator ropes to solve these problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vibration damping device for elevator ropes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vibration damping device for an elevator rope includes a base plate, inside which a steel cable body is disposed. It also includes left and right vibration damping components for left and right vibration damping of the steel cable body. The left and right vibration damping components are disposed on the top and bottom surfaces of the base plate. Each left and right vibration damping component includes a guide wheel frame, which is fixedly installed on the top and bottom surfaces of the base plate. A U-shaped wheel is disposed on the top surface of the base plate. The rotating wheels of the U-shaped wheel and the guide wheel frame abut against the outer circular wall of the steel cable body. A double-ear vibration damper is hinged to one side of the U-shaped wheel via a hinge. The end of the base plate is hinged to a movable plate. A rectangular through hole is opened on the top surface of the base plate. A first limiting groove is opened on both sides of the inside of the rectangular through hole. The first limiting groove is movably sleeved with the movable plate. A first circular through hole is opened on one side of the inside of the rectangular through hole. A hydraulic cylinder is fixedly sleeved on the inner circular wall of the first circular through hole. One end of the telescopic shaft of the hydraulic cylinder is fixedly installed with the movable plate. A support base is fixedly installed on the top surface of the base plate. A fastener is fixed on the top surface of the support base by bolts. The support base is provided with a front and rear shock absorption mechanism for front and rear shock absorption of the U-shaped wheel.

[0007] As a further embodiment of this utility model, the front and rear shock absorption components include: a fixed column, which is fixedly installed on both sides of the U-shaped wheel, and a shock-absorbing ring is movably sleeved on the outer circular wall of the fixed column. A damping spring is provided on one side of the shock-absorbing ring, and the damping spring is movably sleeved with the fixed column.

[0008] As a further embodiment of this utility model, the top surface of the support base and the bottom surface of the fastener are respectively provided with a second limiting groove, the outer circular wall surface of the fixing column is movably fitted with a limiting sleeve, the top and bottom surfaces of the limiting sleeve are provided with limiting plates, the limiting plates are integrally formed with the limiting sleeve, the limiting plates are movably fitted with the second limiting groove, and the limiting sleeve and the fixing column are limited by the cooperation of the support base and the fastener.

[0009] As a further embodiment of this utility model, a U-shaped ring is fixedly installed on the outer circular wall of the U-shaped wheel, and the steel cable body is limited by the U-shaped ring.

[0010] As a further embodiment of this utility model, the top surface of the base plate is provided with a plurality of second circular through holes, and two shock-absorbing pads are fixedly installed on the bottom surface of the base plate.

[0011] As a further embodiment of this invention, the vibration damping ring has a double-layer structure, consisting of a metal layer and a rubber layer.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model has multi-directional shock absorption capability. Through the synergistic effect of the left and right shock absorption components (guide wheel frame, U-shaped wheel, double-ear shock absorber) and the front and rear shock absorption components (shock-damping ring, damping spring), it can simultaneously buffer and suppress the vibration of the steel cable body in the left and right and front and rear directions. It can cover the complex vibration scenarios of the steel cable, effectively reduce the fatigue wear of the steel cable body, reduce the intensity of vibration transmitted to the car and hoistway, improve passenger comfort, and extend the service life of the steel cable and related components.

[0014] 2. The base plate of this utility model can be directly set in parallel without additional modification to meet the installation requirements of multiple parallel steel cables; at the same time, with the help of the hydraulic cylinder to adjust the thrust amplitude of the double-ear shock absorber, the shock absorption force of each parallel steel cable can be precisely controlled to ensure that the steel cables are subjected to balanced force during the operation of the multi-steel cable elevator, thereby improving the overall operating safety of the elevator.

[0015] 3. On the one hand, this utility model can dynamically adjust the thrust of the double-ear shock absorber through the hydraulic cylinder, so as to flexibly adjust the size of the shock absorption and accurately adapt to the vibration requirements of different operating stages such as elevator start-up, constant speed, and stop. On the other hand, through the cooperation of the support base, fastener, limit sleeve, limit plate and second limit groove, the fixed column and U-shaped wheel can be strictly limited to prevent them from horizontal tilting or vertical rotation, avoid jamming and failure caused by tilting, and significantly improve the operational reliability and long-term stability of the vibration damping mechanism. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a vibration damping device for elevator ropes proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the base plate structure of a vibration damping device for elevator ropes proposed in this utility model;

[0018] Figure 3 A schematic diagram of the steel cable body structure of a vibration damping device for elevator ropes proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the guide wheel frame structure of a vibration damping device for elevator ropes proposed in this utility model;

[0020] Figure 5 A schematic diagram of the U-shaped wheel structure of a vibration damping device for elevator ropes proposed in this utility model;

[0021] Figure 6 for Figure 4 A partial structural diagram of A in the middle;

[0022] Figure 7 This is a schematic diagram of the first limiting groove structure of a vibration damping device for an elevator rope proposed in this utility model.

[0023] In the diagram: 1. Base plate; 2. Steel cable body; 3. Guide wheel frame; 4. U-shaped wheel; 5. Fixed column; 6. Support seat; 7. Double-ear shock absorber; 8. Moving plate; 9. First limiting groove; 10. Hydraulic cylinder; 11. Limiting sleeve; 12. Limiting plate; 13. Second limiting groove; 14. Fastener; 15. Vibration damping ring; 16. Damping spring; 17. Shock-absorbing pad; 18. U-shaped ring. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Reference Figures 1-7 A vibration damping device for an elevator rope includes a base plate 1, inside which a steel cable body 2 is disposed. It also includes left and right vibration damping components for left and right vibration damping of the steel cable body 2. The left and right vibration damping components are disposed on the top and bottom surfaces of the base plate 1. Each left and right vibration damping component includes a guide wheel frame 3, which is fixedly installed on the top and bottom surfaces of the base plate 1. A U-shaped wheel 4 is disposed on the top surface of the base plate 1. The rotating wheels of the U-shaped wheel 4 and the guide wheel frame 3 abut against the outer circular wall of the steel cable body 2. A double-ear vibration damper 7 is hinged to one side of the U-shaped wheel 4 via a hinge. A movable plate 8 is hinged at the end. A rectangular through hole is opened on the top surface of the base plate 1. A first limiting groove 9 is opened on both sides of the inside of the rectangular through hole. The first limiting groove 9 is movably sleeved with the movable plate 8. A first circular through hole is opened on one side of the inside of the rectangular through hole. A hydraulic cylinder 10 is fixedly sleeved on the inner circular wall of the first circular through hole. One end of the telescopic shaft of the hydraulic cylinder 10 is fixedly installed with the movable plate 8. A support seat 6 is fixedly installed on the top surface of the base plate 1. A fastener 14 is fixed on the top surface of the support seat 6 by bolts. A front and rear shock absorption mechanism for front and rear shock absorption of the U-shaped wheel 4 is provided inside the support seat 6.

[0028] In this embodiment, the front and rear shock absorption components include: a fixed column 5, which is fixedly installed on both sides of the U-shaped wheel 4; a shock-absorbing ring 15 is movably sleeved on the outer circular wall of the fixed column 5; a damping spring 16 is provided on one side of the shock-absorbing ring 15; the damping spring 16 is movably sleeved with the fixed column 5; a second limiting groove 13 is respectively opened on the top surface of the support base 6 and the bottom surface of the fastener 14; a limiting sleeve 11 is movably sleeved on the outer circular wall of the fixed column 5; and limiting plates 12 are provided on the top and bottom surfaces of the limiting sleeve 11 for limiting... Plate 12 and limiting sleeve 11 are integrally formed. Limiting plate 12 is movably connected to second limiting groove 13. The limiting sleeve 11 and fixing column 5 are limited by the cooperation of support seat 6 and fastener 14. U-shaped ring 18 is fixedly installed on the outer circular wall of U-shaped wheel 4. The steel cable body 2 is limited by U-shaped ring 18. Several second circular through holes are opened on the top surface of base plate 1. Two shock-absorbing pads 17 are fixedly installed on the bottom surface of base plate 1. The shock-absorbing ring 15 has a double-layer structure, which is a metal layer and a rubber layer.

[0029] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0030] With the base plate 1 installed, when users need to dampen the steel cable body 2, the base plate 1 is installed at the location on the steel cable body 2 requiring damping via a bracket. This location should avoid the base plate 1 interfering with the elevator's operation. Simultaneously, a passageway can be provided on the outside of the base plate 1 for the steel cable body 2 to enter and exit during installation; this passageway requires structural reinforcement. Furthermore, the base plates 1 can be installed side-by-side to accommodate parallel steel cable bodies 2, providing damping for the parallel steel cable bodies 2. The bracket installation is based on site design and installation, and will not be elaborated further.

[0031] Furthermore, during use, the inner wall of the rollers of the guide wheel frame 3 abuts against the steel cable body 2, and simultaneously, the rollers of the U-shaped wheel 4 abut against the steel cable body 2. When the elevator starts, the hydraulic cylinder 10 pulls the moving plate 8, which in turn pushes the double-ear shock absorber 7, which then pushes the U-shaped wheel 4 to move laterally.

[0032] The laterally moving U-shaped wheel 4 is supported by fixed columns 5 on both sides, and the fixed columns 5 are supported by limiting plates 12. The limiting plates 12 are located inside the support base 6 and the second limiting groove 13, which limit the movement so that it can only slide left and right, thus preventing the U-shaped wheel 4 from tilting horizontally. The longitudinal rotation of the U-shaped wheel 4 is restricted by the hinge between the double-ear shock absorber 7 and the U-shaped wheel 4. Alternatively, the fixed columns 5 can be made square to restrict the vertical rotation of the U-shaped wheel 4. By strictly limiting the fixed columns 5 and the U-shaped wheel 4, horizontal tilting or vertical rotation is prevented, avoiding jamming and failure caused by component tilting, and significantly improving the operational reliability and long-term stability of the vibration damping mechanism. Thus, the double-ear shock absorber 7 pushes the U-shaped wheel 4 to compress the steel cable body 2.

[0033] When the steel cable body 2 starts running, it will vibrate back and forth or left and right due to the instantaneous change in tension. Since the U-shaped wheel 4 is pressed against the outer wall of the steel cable body 2, the vibration is transmitted to the U-shaped wheel 4. The damping spring 16 and the shock-absorbing ring 15 dampen the front and back vibration of the U-shaped wheel 4, and the double-ear shock absorber 7 dampens the left and right vibration of the U-shaped wheel 4. This suppresses the vibration force of the steel cable body 2, which can cover the complex vibration scenarios of the steel cable body 2, effectively reduce the fatigue wear of the steel cable body 2, and reduce the intensity of vibration transmitted to the car and hoistway. This not only improves the passenger comfort, but also extends the service life of the steel cable body 2 and related components.

[0034] After the elevator starts and the tension stabilizes, the pressure of the U-shaped wheel 4 on the steel cable body 2 can be reduced. Similarly, vibration reduction can be implemented in other scenarios, controlled by the elevator controller. The thrust amplitude of the double-ear shock absorber 7 can be adjusted by the hydraulic cylinder 10, thereby adjusting the vibration reduction. The base plate 1 can be directly installed side by side without additional modification to meet the installation requirements of multiple parallel steel cable bodies 2. This allows for precise control of the vibration reduction force of each parallel steel cable body 2, accurately adapting to the vibration requirements of different operating stages such as elevator start-up, constant speed, and stop, ensuring that the force on each steel cable body 2 is balanced during elevator operation and improving the overall safety of elevator operation.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A vibration damping device for elevator ropes, comprising a base plate (1), wherein a steel cable body (2) is disposed inside the base plate (1), characterized in that: It also includes left and right shock absorption components for left and right shock absorption of the steel cable body (2). The left and right shock absorption components are disposed on the top and bottom surfaces of the base plate (1). The left and right shock absorption components include: a guide wheel frame (3), which is fixedly installed on the top and bottom surfaces of the base plate (1). A U-shaped wheel (4) is provided on the top surface of the base plate (1). The rotating wheels of the U-shaped wheel (4) and the guide wheel frame (3) abut against the outer circular wall surface of the steel cable body (2). A double-ear shock absorber (7) is hinged to one side of the U-shaped wheel (4) through a hinge. A movable plate (8) is hinged to the end of the double-ear shock absorber (7). The base plate (1) The top surface of the plate (1) is provided with a rectangular through hole. The inner sides of the rectangular through hole are respectively provided with a first limiting groove (9). The first limiting groove (9) is movably sleeved with the moving plate (8). The inner side of the rectangular through hole is provided with a first circular through hole. The inner wall of the first circular through hole is fixedly sleeved with a hydraulic cylinder (10). One end of the telescopic shaft of the hydraulic cylinder (10) is fixedly installed with the moving plate (8). The top surface of the base plate (1) is fixedly installed with a support seat (6). The top surface of the support seat (6) is fixed with a fastener (14) by bolts. The inside of the support seat (6) is provided with a front and rear shock absorption mechanism for front and rear shock absorption of the U-shaped wheel (4).

2. The vibration damping device for elevator ropes according to claim 1, characterized in that, The front and rear shock absorption components include: a fixed column (5), which is fixedly installed on both sides of the U-shaped wheel (4). A shock-absorbing ring (15) is movably sleeved on the outer circular wall of the fixed column (5). A damping spring (16) is provided on one side of the shock-absorbing ring (15), and the damping spring (16) is movably sleeved with the fixed column (5).

3. The vibration damping device for elevator ropes according to claim 2, characterized in that, The top surface of the support base (6) and the bottom surface of the fastener (14) are respectively provided with a second limiting groove (13). The outer circular wall of the fixing column (5) is movably sleeved with a limiting sleeve (11). The top and bottom surfaces of the limiting sleeve (11) are provided with limiting plates (12). The limiting plate (12) is integrally formed with the limiting sleeve (11). The limiting plate (12) is movably sleeved with the second limiting groove (13). The limiting sleeve (11) and the fixing column (5) are limited by the cooperation of the support base (6) and the fastener (14).

4. The vibration damping device for elevator ropes according to claim 1, characterized in that, A U-shaped ring (18) is fixedly installed on the outer circular wall of the U-shaped wheel (4), and the steel cable body (2) is limited by the U-shaped ring (18).

5. The vibration damping device for elevator ropes according to claim 1, characterized in that, The top surface of the base plate (1) is provided with several second circular through holes, and two shock-absorbing pads (17) are fixedly installed on the bottom surface of the base plate (1).

6. A vibration damping device for elevator ropes according to claim 2, characterized in that, The shock-absorbing ring (15) has a double-layer structure, consisting of a metal layer and a rubber layer.

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