Composite self-adaptive vibration reduction elevator guide shoe

Abstract

The invention relates to the technical field related to elevator guide shoe structures, and discloses a composite self-adaptive vibration reduction elevator guide shoe which comprises an elevator guide shoe body, and an anti-impact spring assembly is arranged in the elevator guide shoe body. By integrating the innovative roller assembly and the impact-resistant assembly, a set of efficient and self-adaptive buffer system is formed, and when an elevator is subjected to various impact forces, such as start-stop, emergency braking or sudden vibration in operation, the impact forces can be effectively dispersed, absorbed and converted, so that stable operation of an elevator car is ensured, and the service life of the elevator is prolonged. The guide shoe integrates a vibration reduction roller assembly and an anti-impact spring assembly, and the vibration reduction roller assembly and the anti-impact spring assembly can synergistically act to effectively disperse and absorb impact force, reduce shaking and impact of a lift car and ensure stable operation of the lift when the lift is started, stopped, operated at a high speed, braked emergently, dealt with sudden vibration and other complex working conditions. And meanwhile, energy consumption is reduced, riding comfort and safety are improved, and the service life of the elevator is prolonged.

Description

Technical Field

[0001] This invention relates to the technical field of elevator guide shoe structures, and in particular to a composite adaptive vibration reduction elevator guide shoe. Background Technology

[0002] Elevator guide shoes, as a crucial connecting link between elevator guide rails and the car, directly affect the comfort, safety, and stability of elevator operation.

[0003] Currently, the main problems with elevator guide shoes are as follows: Traditional sliding guide shoes mostly use nylon blocks (only a few low-speed elevators use brass liners) in contact with the guide rails. Although oil cups are used for lubrication to reduce friction, wear during long-term operation leads to a significant increase in frictional resistance, thereby substantially increasing the elevator's energy consumption. At the same time, the gap between the shoe liner and the guide rail gradually widens, causing the car to shake and experience impacts, further accelerating material wear. Furthermore, traditional sliding guide shoes cannot effectively absorb the impact forces generated during elevator start-up, stopping, or emergency braking, easily leading to car vibration and component deformation.

[0004] Rolling guide shoes reduce friction through rollers; however, they lack the necessary cushioning. During elevator start-up, stop, or emergency braking, the impact force is directly transmitted to the car, causing vibration and component deformation.

[0005] In addition, traditional sliding guide shoes (especially rigid types) are only suitable for elevators with relatively low operating speeds. When the elevator operates at high speeds, frictional heat generation and vibration problems become particularly prominent. While rolling guide shoes can support relatively high-speed elevator operation, they are rarely used in freight elevators with heavy loads and speeds ≥1.75m / s. Although the load-bearing capacity can be improved by increasing the number of rollers (e.g., using six rollers), such a design significantly increases the complexity of the structure and the difficulty of installation, especially in heavy-load scenarios, where the requirements for roller materials and bearing stress are also higher. To solve the above problems, a composite adaptive vibration-damping elevator guide shoe is proposed. Summary of the Invention

[0006] This invention provides a composite adaptive vibration damping elevator guide shoe, which solves the problems mentioned in the background art.

[0007] The technical problem solved by this invention is achieved through the following technical solution: A composite adaptive vibration damping elevator guide shoe includes an elevator guide shoe body, wherein the elevator guide shoe body includes an anti-impact spring assembly, an anti-impact roller fixing bracket, and a vibration damping roller assembly. The elevator guide shoe body includes a vertically arranged first guide shoe bracket and a second guide shoe bracket. The anti-impact spring assembly passes through the first guide shoe bracket and is located on one side of the second guide shoe bracket. The vibration damping roller assembly and the anti-impact spring assembly are vertically distributed at the same height, and the vibration damping roller assembly is symmetrically arranged on both sides, with three sets arranged on one side. The impact-resistant spring assembly includes a first guide screw and a first anti-jump nut, a first adjusting nut, a limiting plate, a high-stiffness spring, a spring seat, and a support nut sequentially disposed on the first guide screw; the spring seat is disposed on the second guide shoe bracket, and the limiting plate and the first adjusting nut are disposed on both sides of the first guide shoe bracket; The impact-resistant roller fixing bracket includes a sliding inner liner disposed on one side of the second guide shoe bracket. A fixing frame is provided on one side of the sliding inner liner. A rubber base and high-damping rubber are provided on the side of the fixing frame near the sliding inner liner. The high-damping rubber is disposed on one side surface of the sliding inner liner. The vibration-damping roller assembly extends inward through the fixing frame and the second guide shoe bracket. The vibration damping roller assembly includes a second guide screw that passes through the fixed frame and a fixing nut, a second anti-jump nut, a second adjusting nut, a vibration damping spring, and a roller bracket arranged sequentially on the outer periphery of the second guide screw; the roller bracket is provided with a wheel axle, and the wheel axle is provided with a nylon wheel; the fixing nut and the second anti-jump nut are respectively provided on the two sides of the fixed frame.

[0008] Preferably, the upper and lower parts of the sliding liner are respectively provided with mounting brackets for fixing the sliding liner.

[0009] Preferably, the upper side of the elevator guide shoe body is provided with an oil cup bracket for placing the oil cup, and the bottom of the oil cup bracket is connected to the fixing frame by a bolt assembly for fixing.

[0010] Preferably, a washer is provided on one side of the second fixing nut to prevent the second fixing nut from slipping.

[0011] Preferably, the two high-damping rubber pieces and the three sets of vibration-damping roller assemblies are arranged in a sequentially spaced manner to form an independent vibration-damping space, and the vibration-damping roller assemblies are arranged in a horizontal manner.

[0012] Preferably, the sliding liner has a buffer groove for the nylon wheel to extend into at a position relative to the nylon wheel.

[0013] Preferably, the number of the vibration damping roller assemblies is at least three pairs.

[0014] Preferably, the first guide shoe bracket and the second guide shoe bracket are integrally formed.

[0015] The advantages and positive effects of this invention are as follows: By integrating innovative roller assemblies and impact-resistant components, a highly efficient and adaptive buffer system is formed. This system can effectively disperse, absorb, and transform various impact forces when the elevator is subjected to them, such as during start-up, emergency braking, or sudden vibrations during operation. This ensures the smooth operation of the elevator car and reduces impact damage to the elevator structure and components. The guide shoe integrates vibration-damping roller assemblies and impact-resistant spring assemblies. In complex operating conditions such as elevator start-up, high-speed operation, emergency braking, and handling sudden vibrations, it can work together to effectively disperse and absorb impact forces, reduce car swaying and impact, ensure smooth elevator operation, reduce energy consumption, improve ride comfort and safety, and extend the elevator's service life. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A sectional view; Figure 3 yes Figure 1 Schematic diagram of the structure of the oil cup support; Figure 4 yes Figure 1 Schematic diagram of the structure of the medium-impact spring assembly; Figure 5 yes Figure 1 A schematic diagram of the structure of the vibration damping roller assembly.

[0018] The markings in the attached diagram are described below: 11. Elevator guide shoe body; 12. First guide shoe bracket; 13. Second guide shoe bracket; Impact-resistant spring assembly; 21. First guide screw; 22. First anti-jump nut; 23. First adjusting nut; 24. High-stiffness spring; 25. Spring seat; 26. Support nut; 27. Limiting plate; Impact-resistant roller mounting bracket; 31. Mounting bracket; 32. High-damping rubber; 33. Rubber base; Vibration damping roller assembly; 41. Second guide screw; 42. Fixing nut; 43. Second adjusting nut; 44. Wheel axle; 45. Nylon wheel; 46. Roller bracket; 47. Vibration damping spring; 48. Second anti-jump nut; 49. Washer; Sliding lining; 61. Oil cup bracket; 62. Sheet metal parts; 63. Bolt assembly. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention. The embodiments of the invention are further described in detail below with reference to the accompanying drawings: Reference Figures 1 to 5 As shown, the elevator guide shoe, as a crucial connecting link between the elevator guide rail and the car, directly affects the comfort, safety, and stability of elevator operation.

[0020] Currently, the main problems with elevator guide shoes are as follows: Traditional sliding guide shoes mostly use nylon blocks (only a few low-speed elevators use brass liners) in contact with the guide rails. Although oil cups are used for lubrication to reduce friction, wear during long-term operation leads to a significant increase in frictional resistance, thereby substantially increasing the elevator's energy consumption. At the same time, the gap between the shoe liner and the guide rail gradually widens, causing the car to shake and experience impacts, further accelerating material wear. Furthermore, traditional sliding guide shoes cannot effectively absorb the impact forces generated during elevator start-up, stopping, or emergency braking, easily leading to car vibration and component deformation.

[0021] Rolling guide shoes reduce friction through rollers; however, they lack the necessary cushioning. During elevator start-up, stop, or emergency braking, the impact force is directly transmitted to the car, causing vibration and component deformation.

[0022] In addition, traditional sliding guide shoes (especially rigid types) are only suitable for elevators with relatively low operating speeds. When the elevator runs at high speeds, frictional heat and vibration problems become particularly prominent. While rolling guide shoes can support relatively high-speed elevator operation, they are rarely used in freight elevators with heavy loads and speeds ≥1.75m / s. Although the load-bearing capacity can be improved by increasing the number of rollers (e.g., using six rollers), such a design significantly increases the complexity of the structure and the difficulty of installation, especially in heavy-load scenarios, where the requirements for roller materials and bearing stress are also higher. To solve the above problems, a composite adaptive vibration-damping elevator guide shoe is proposed; it includes an elevator guide shoe body 1, which includes an anti-impact spring assembly 2, an anti-impact roller fixing bracket 3, and a vibration-damping roller assembly 4. The elevator guide shoe body 1 includes a vertically arranged first guide shoe bracket 11 and a second guide shoe bracket 12. The anti-impact spring assembly 2 passes through the first guide shoe bracket 11 and is located on one side of the second guide shoe bracket 12. The vibration damping roller assembly 4 is arranged vertically at the same height as the anti-impact spring assembly 2, and the vibration damping roller assembly 4 is symmetrically arranged on both sides, with three sets arranged on one side. The impact-resistant spring assembly 2 includes a first guide screw 21 and a first anti-jump nut 22, a first adjusting nut 23, a limiting plate 27, a high-stiffness spring 24, a spring seat 25, and a support nut 26 sequentially disposed on the first guide screw 21; the spring seat 25 is disposed on the second guide shoe bracket 12, and the limiting plate 27 and the first adjusting nut 23 are disposed on both sides of the first guide shoe bracket 11; The impact-resistant roller fixing bracket 3 includes a sliding inner liner 5 disposed on one side of the second guide shoe bracket 12. A fixing frame 31 is provided on one side of the sliding inner liner 5. A rubber base 33 and a high-damping rubber 32 are provided on the side of the fixing frame 31 near the sliding inner liner 5. The high-damping rubber 32 is disposed on one side surface of the sliding inner liner 5. The vibration-damping roller assembly 4 extends inward through the fixing frame 31 and the second guide shoe bracket 12. The vibration-damping roller assembly 4 includes a second guide screw 41 penetrating the fixed frame 31 and a fixing nut 42, a second anti-jump nut 48, a second adjusting nut 43, a vibration-damping spring 47, and a roller bracket 46 sequentially disposed on the outer periphery of the second guide screw 41; the roller bracket 46 is provided with a wheel axle 44, and the wheel axle 44 is provided with a nylon wheel 45; the fixing nut 42 and the second anti-jump nut 48 are respectively disposed on the two sides of the fixed frame 31; by integrating the innovative roller assembly and the impact-resistant assembly, a highly efficient and adaptive buffer system is formed, which can... When an elevator is subjected to various impacts, such as starting and stopping, emergency braking, or sudden vibrations during operation, the guide shoe effectively disperses, absorbs, and transforms these impacts, thereby ensuring the smooth operation of the elevator car and reducing impact damage to the elevator structure and components. The guide shoe integrates a vibration damping roller assembly 4 and an anti-impact spring assembly 2. Under complex operating conditions such as elevator starting and stopping, high-speed operation, emergency braking, and dealing with sudden vibrations, it can work together to effectively disperse and absorb impacts, reduce car swaying and impact, ensure the smooth operation of the elevator, reduce energy consumption, improve ride comfort and safety, and extend the service life of the elevator.

[0023] It should be noted that the shape and structure of the first guide shoe bracket 11 and the second guide shoe bracket 12 formed within the two elevator guide shoe bodies 1 can be referred to Figure 1 and Figure 2 As shown, the first guide shoe bracket 11 is a concave part, while the second guide shoe bracket 12 is located in the concave part to act as a partition. This part of the structure is a common structure in the elevator guide shoe body 1.

[0024] Furthermore, the aforementioned vibration damping roller assembly 4 is symmetrically arranged on both sides, with three sets arranged on one side. This arrangement can be referenced from [the relevant documentation]. Figure 2 As shown, the three sets of vibration damping roller assemblies 4 on both sides are symmetrically arranged. Of course, in some special cases, such as elevator applications with large load capacity, the number can be appropriately increased.

[0025] Additionally, the aforementioned vibration damping roller assembly 4 plays a crucial guiding role during normal elevator operation. The stiffness of the vibration damping spring 47 can be flexibly adjusted via the second adjusting nut 43 to adapt to different operating requirements. Its unique three-layer arrangement not only ensures effective guiding performance but also provides sufficient stiffness support during normal operation.

[0026] In addition, the vibration damping roller assembly 4 can be flexibly adjusted according to the actual site conditions and the car posture, effectively avoiding unreasonable contact between the guide shoes and the guide rails, thereby extending the service life of the elevator.

[0027] It should also be noted that the specific structure of the aforementioned impact-resistant roller fixing bracket 3 is as follows: the impact-resistant roller fixing bracket 3 includes a sliding inner liner 5 disposed on one side of the second guide shoe bracket 12, a fixing frame 31 disposed on one side of the sliding inner liner 5, a rubber base 33 and a high-damping rubber 32 disposed on the side of the fixing frame 31 near the sliding inner liner 5, the high-damping rubber 32 disposed on one side surface of the sliding inner liner 5, and the vibration-damping roller assembly 4 extends inward through the fixing frame 31 and the second guide shoe bracket 12; the cooperation of the sliding inner liner 5 and the fixing frame 31 forms a space for effectively installing and protecting the vibration-damping roller assembly 4, and the setting of the aforementioned rubber base 33 and high-damping rubber 32 can ensure its stability and durability under impact conditions.

[0028] Furthermore, the aforementioned high-damping rubber 32 is detachable, which facilitates subsequent maintenance and replacement.

[0029] Furthermore, the coordinated arrangement of the aforementioned anti-impact spring assembly 2, anti-impact roller fixing bracket 3, and damping roller assembly 4 allows the impact force between the car and the guide rails to be decomposed into two directional vectors when the elevator is subjected to an impact. One direction is the axial direction towards the first guide screw 21. In this case, the nylon wheel 45 of the damping roller assembly 4 is compressed against the inner surface of the sliding liner 5, while the high-damping rubber 32 on the anti-impact roller bracket 46 quickly provides strong support and buffering, effectively dissipating the impact kinetic energy in this direction. The other direction is the axial direction towards the second guide screw 41. The impact force in this direction is mitigated by the high-stiffness spring 24 of the anti-impact spring assembly 2, further reducing the impact on the car.

[0030] It is worth mentioning that the upper and lower parts of the sliding inner liner 5 are respectively provided with mounting brackets for fixing the sliding inner liner 5; the setting of the mounting brackets can ensure that the sliding inner liner 5 can be replaced and installed when it is used in conjunction with other components of the guide rail.

[0031] Additionally, in order to provide real-time protection for the elevator guide shoe, in this embodiment, the upper side of the elevator guide shoe body 1 is provided with an oil cup bracket 6 for placing an oil cup. The bottom of the oil cup bracket 6 is connected to the fixing frame 31 by a bolt assembly 62 for fixing. An oil cup can be installed in the oil cup bracket 6 to lubricate the elevator guide shoe in real time, thereby ensuring the stability of its components and extending its service life. The oil cup bracket 6 is mainly set by a sheet metal part 61.

[0032] It should be noted that a washer 49 is provided on one side of the second fixing nut 42 to prevent the second fixing nut 42 from slipping; the washer 49 can prevent the second fixing nut 42 from slipping, thereby ensuring the stability of the vibration damping roller assembly 4 during operation.

[0033] Once again, the design and synergy of the damping roller assembly 4 and the impact-resistant spring assembly 2 provide effective guiding performance and stiffness support, while the impact-resistant spring assembly 2 provides reliable buffer protection under impact conditions.

[0034] It should be emphasized that the embodiments described in this invention are illustrative rather than limiting. Therefore, this invention is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this invention also fall within the scope of protection of this invention.

Claims

1. A composite adaptive vibration damping elevator guide shoe, characterized in that: The elevator guide shoe body (1) includes an anti-impact spring assembly (2), an anti-impact roller fixing bracket (3), and a vibration damping roller assembly (4). The elevator guide shoe body (1) includes a vertically arranged first guide shoe bracket (11) and a second guide shoe bracket (12). The anti-impact spring assembly (2) passes through the first guide shoe bracket (11) and is located on one side of the second guide shoe bracket (12). The vibration damping roller assembly (4) is arranged vertically at the same height as the anti-impact spring assembly (2), and the vibration damping roller assembly (4) is symmetrically arranged on both sides, with three sets arranged on one side. The impact-resistant spring assembly (2) includes a first guide screw (21) and a first anti-jump nut (22), a first adjusting nut (23), a limiting plate (27), a high-stiffness spring (24), a spring seat (25), and a support nut (26) sequentially disposed on the first guide screw (21); the spring seat (25) is disposed on the second guide shoe bracket (12), and the limiting plate (27) and the first adjusting nut (23) are disposed on both sides of the first guide shoe bracket (11); The impact-resistant roller fixing bracket (3) includes a sliding inner liner (5) disposed on one side of the second guide shoe bracket (12). A fixing frame (31) is provided on one side of the sliding inner liner (5). A rubber base (33) and a high-damping rubber (32) are provided on the side of the fixing frame (31) close to the sliding inner liner (5). The high-damping rubber (32) is disposed on one side of the sliding inner liner (5). The vibration-damping roller assembly (4) extends inward through the fixing frame (31) and the second guide shoe bracket (12). The vibration damping roller assembly (4) includes a second guide screw (41) penetrating the fixed frame (31) and a fixing nut (42), a second anti-jump nut (48), a second adjusting nut (43), a vibration damping spring (47), and a roller bracket (46) sequentially disposed on the outer periphery of the second guide screw (41); the roller bracket (46) is provided with a wheel axle (44), and the wheel axle (44) is provided with a nylon wheel (45); the fixing nut (42) and the second anti-jump nut (48) are respectively disposed on the two sides of the fixed frame (31).

2. The composite adaptive vibration damping elevator guide shoe according to claim 1, characterized in that: The upper and lower parts of the sliding liner (5) are respectively provided with mounting brackets for fixing the sliding liner (5).

3. The composite adaptive vibration damping elevator guide shoe according to claim 1, characterized in that: The upper side of the elevator guide shoe body (1) is provided with an oil cup bracket (6) for placing an oil cup. The bottom of the oil cup bracket (6) is connected to the fixing frame (31) by a bolt assembly (62) for fixing.

4. The composite adaptive vibration damping elevator guide shoe according to claim 1, characterized in that: The second fixing nut (42) has a washer (49) on one side to prevent the second fixing nut (42) from slipping.

5. A composite adaptive vibration damping elevator guide shoe according to claim 1, characterized in that: Two pieces of high-damping rubber (32) and three sets of vibration-damping roller assemblies (4) are arranged in a sequentially spaced manner to form an independent vibration-damping space, and the vibration-damping roller assemblies (4) are arranged in a horizontal manner.

6. The composite adaptive vibration damping elevator guide shoe according to claim 1, characterized in that: The sliding liner (5) has a buffer groove at a position relative to the nylon wheel (45) for the nylon wheel (45) to extend into.

7. A composite adaptive vibration damping elevator guide shoe according to claim 1, characterized in that: The number of the vibration damping roller assemblies (4) is at least three pairs.

8. A composite adaptive vibration damping elevator guide shoe according to claim 1, characterized in that: The first guide shoe bracket (11) and the second guide shoe bracket (12) are integrally formed.

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