A damping mechanism for a goods lift car

Abstract

The utility model discloses a kind of shock-absorbing mechanisms of goods elevator car, goods elevator car includes car bracket and car body, car bracket includes two parallelly arranged lower beams, and car body includes car floor;Shock-absorbing mechanism includes shock-absorbing component respectively arranged at both ends of each lower beam, shock-absorbing component includes hard rubber shock-absorbing sleeve, shock-absorbing column and shock-absorbing spring, both ends of hard rubber shock-absorbing sleeve are fixedly connected with car floor and lower beam respectively, shock-absorbing column is movably arranged in the inside of hard rubber shock-absorbing sleeve, the bottom end of shock-absorbing column is fixedly connected with limit plate and is penetrated through lower beam, the top end of shock-absorbing column is equipped with pressing plate, shock-absorbing spring sleeve is arranged in the outside of shock-absorbing column, both ends of shock-absorbing spring are fixedly connected with pressing plate and lower beam respectively.The utility model discloses a kind of shock-absorbing mechanisms of goods elevator car, by setting multiple shock-absorbing components between car bracket and car body, vibration transmission can be effectively isolated and attenuated, reduce the vibration and noise in car, reduce the shaking and damage risk generated by vibration of goods.

Description

Technical Field

[0001] This utility model relates to a shock absorption mechanism for a freight elevator car. Background Technology

[0002] During startup, operation, braking, and leveling, freight elevators experience vibrations and impacts in the car frame due to factors such as motor drive, wire rope traction, and guide rail friction. These vibrations are directly transmitted to the car body through traditional rigid connections, causing goods inside the car to shake, collide, or even be damaged, especially for precision instruments, fragile items, or goods stacked at high levels. Furthermore, continuous vibration and noise reduce the overall comfort and lifespan of the elevator.

[0003] Currently, most freight elevators use a direct, rigid bolt connection between the car body and the car bracket, lacking effective vibration damping and isolation measures. Although some elevators have attempted to use simple rubber pads, their damping effect is limited, and they are prone to creep or damage under high loads. They cannot effectively isolate medium- and high-frequency vibrations, nor can they meet the damping requirements under different loads. Therefore, corresponding technical solutions are needed to address these problems. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides a shock absorption mechanism for a freight elevator car to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a shock-absorbing mechanism for a freight elevator car. The freight elevator car includes a car bracket and a car body. The car bracket includes two parallel lower beams, and the car body includes a car floor plate. The shock-absorbing mechanism includes shock-absorbing components respectively disposed at both ends of each lower beam. Each shock-absorbing component includes a rigid rubber shock-absorbing sleeve, a shock-absorbing column, and a shock-absorbing spring. The top end of the rigid rubber shock-absorbing sleeve is fixedly connected to the car floor plate, and the bottom end of the rigid rubber shock-absorbing sleeve is fixedly connected to the lower beam. The shock-absorbing column is movably inserted inside the rigid rubber shock-absorbing sleeve. The bottom end of the shock-absorbing column passes through the lower beam and is fixedly connected to a limit plate. The top end of the shock-absorbing column is provided with a pressure plate. The shock-absorbing spring is disposed inside the rigid rubber shock-absorbing sleeve and sleeved outside the shock-absorbing column. Both ends of the shock-absorbing spring are fixedly connected to the pressure plate and the lower beam, respectively.

[0006] Preferably, the top of the pressure plate is provided with a boss, and the bottom of the car floor is provided with a groove for the boss to be inserted. The boss is fixedly connected to the groove by welding.

[0007] Preferably, the lower beam is provided with a through hole for the shock-absorbing column to pass through, and a linear bearing that slides and engages with the shock-absorbing column is fixed in the through hole.

[0008] Preferably, the limiting plate is fixedly connected to the shock-absorbing column by welding, and the shock-absorbing column is fitted with a shock-absorbing washer located above the limiting plate.

[0009] Preferably, the top end of the rigid rubber shock absorber is provided with a top connecting flange, which is fixedly connected to the car floor plate by screws; the bottom end of the rigid rubber shock absorber is provided with a bottom connecting flange, which is fixedly connected to the lower beam by screws.

[0010] Preferably, the lower beam is a channel steel with the groove facing downwards.

[0011] Preferably, a plurality of parallel reinforcing beams are fixedly connected between the two lower beams.

[0012] The advantages and beneficial effects of this utility model are as follows: It provides a shock absorption mechanism for a freight elevator car, which has a reasonable structure. By setting multiple sets of shock absorption components between the car bracket and the car body, it can effectively isolate and attenuate vibration transmission, significantly reduce vibration and noise in the car, and reduce the risk of shaking and damage to goods caused by vibration. In addition, the shock absorption components have the advantages of being stable, reliable, and having a long service life, and are suitable for widespread application. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention.

[0014] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0016] Reference numerals: 1. Lower beam; 2. Car floor plate; 3. Hard rubber shock absorber sleeve; 4. Shock absorber column; 5. Shock absorber spring; 6. Limiting plate; 7. Pressure plate; 8. Boss; 9. Groove; 10. Linear bearing; 11. Shock absorber washer; 12. Top connecting flange; 13. Screw; 14. Bottom connecting flange; 15. Reinforcing beam. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0018] The specific technical solution of this utility model is as follows: In one specific embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, this utility model provides a shock absorption mechanism for a freight elevator car. The freight elevator car includes a car bracket and a car body. The car bracket includes two parallel lower beams 1, and the car body includes a car floor plate 2. The shock absorption mechanism includes shock absorption components respectively disposed at both ends of each lower beam 1. The shock absorption components include a rigid rubber shock absorption sleeve 3, a shock absorption column 4, and a shock absorption spring 5. The top end of the rigid rubber shock absorption sleeve 3 is fixedly connected to the car floor plate 2, and the bottom end of the rigid rubber shock absorption sleeve 3 is fixedly connected to the lower beam 1. The shock absorption column 4 is movably inserted inside the rigid rubber shock absorption sleeve 3. The bottom end of the shock absorption column 3 passes through the lower beam 1 and is fixedly connected to a limit plate 6. The top end of the shock absorption column 4 is provided with a pressure plate 7. The shock absorption spring 5 is disposed inside the rigid rubber shock absorption sleeve 3 and sleeved on the outside of the shock absorption column 4. The two ends of the shock absorption spring 5 are fixedly connected to the pressure plate 7 and the lower beam 1 respectively.

[0019] The working principle of the shock absorption mechanism of the freight elevator car of this utility model is as follows: During the operation of the freight elevator car, the rigid rubber shock absorber 3 and the shock absorber spring 5 can undergo elastic deformation to absorb and dissipate vibration energy, thereby reducing the vibration of the car body.

[0020] In another specific embodiment, such as Figure 1 and Figure 2 As shown, the top of the pressure plate 7 is provided with a boss 8, and the bottom of the car floor plate 2 is provided with a groove 9 for the boss 8 to be placed in. The boss 8 is fixedly connected to the groove 9 by welding.

[0021] The above solution is adopted to achieve a fixed connection between the pressure plate 7 and the car floor 2, so that the car floor 2 can drive the pressure plate 7 to move relative to the lower beam 1 and compress or stretch the shock absorber spring 5.

[0022] In another specific embodiment, such as Figure 1 and Figure 3 As shown, the lower beam 1 is provided with a through hole for the shock-absorbing column 4 to pass through, and a linear bearing 10 that slides in cooperation with the shock-absorbing column 4 is fixed in the through hole.

[0023] By adopting the above solution, the relative movement between the car body and the car bracket can be restricted to the vertical direction only.

[0024] In another specific embodiment, such as Figure 1 and Figure 3 As shown, the limiting plate 6 is fixedly connected to the shock-absorbing column 4 by welding, and the shock-absorbing column 4 is fitted with a shock-absorbing washer 11 located above the limiting plate 6.

[0025] By adopting the above solution, the damping washer 11 can be elastically deformed by the pressure of the limiting plate 6, thereby absorbing and dissipating vibration energy.

[0026] In another specific embodiment, such as Figure 1 As shown, the top end of the rigid rubber shock absorber 3 is provided with a top connecting flange 12, which is fixedly connected to the car floor plate 2 by screws 13; the bottom end of the rigid rubber shock absorber 3 is provided with a bottom connecting flange 14, which is fixedly connected to the lower beam 1 by screws 13.

[0027] The above solution is adopted to achieve a detachable and fixed connection between the rigid rubber shock absorber 3, the car floor 2, and the lower beam 1.

[0028] In another specific embodiment, such as Figure 1 As shown, the lower beam 1 is a channel steel with the slot facing downwards.

[0029] In another specific embodiment, such as Figure 1 As shown, multiple parallel reinforcing beams 15 are fixedly connected between the two lower beams 1.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A shock-absorbing mechanism for a freight elevator car, the freight elevator car comprising a car bracket and a car body, the car bracket comprising two parallel lower beams (1), the car body comprising a car floor plate (2), characterized in that, The shock absorption mechanism includes shock absorption components respectively disposed at both ends of each lower beam (1). The shock absorption components include a hard rubber shock absorption sleeve (3), a shock absorption column (4) and a shock absorption spring (5). The top end of the hard rubber shock absorption sleeve (3) is fixedly connected to the car floor plate (2), and the bottom end of the hard rubber shock absorption sleeve (3) is fixedly connected to the lower beam (1). The shock absorption column (4) is movably inserted inside the hard rubber shock absorption sleeve (3). The bottom end of the shock absorption column (4) passes through the lower beam (1) and is fixedly connected to a limit plate (6). The top end of the shock absorption column (4) is provided with a pressure plate (7). The shock absorption spring (5) is disposed inside the hard rubber shock absorption sleeve (3). The shock absorption spring (5) is sleeved on the outside of the shock absorption column (4), and the two ends of the shock absorption spring (5) are fixedly connected to the pressure plate (7) and the lower beam (1) respectively.

2. The shock absorption mechanism for the freight elevator car according to claim 1, characterized in that, The top of the pressure plate (7) is provided with a boss (8), and the bottom of the car floor plate (2) is provided with a groove (9) for the boss (8) to be placed in. The boss (8) is fixedly connected to the groove (9) by welding.

3. The shock absorption mechanism for the freight elevator car according to claim 2, characterized in that, The lower beam (1) is provided with a through hole through which the shock-absorbing column (4) passes, and a linear bearing (10) that slides in the through hole is fixed therein.

4. The shock absorption mechanism for the freight elevator car according to claim 3, characterized in that, The limiting plate (6) is fixedly connected to the shock-absorbing column (4) by welding, and the shock-absorbing column (4) is fitted with a shock-absorbing washer (11) located above the limiting plate (6).

5. The shock absorption mechanism for the freight elevator car according to claim 1, characterized in that, The top end of the rigid rubber shock absorber (3) is provided with a top connecting flange (12), which is fixedly connected to the car floor plate (2) by screws (13); the bottom end of the rigid rubber shock absorber (3) is provided with a bottom connecting flange (14), which is fixedly connected to the lower beam (1) by screws (13).

6. The shock absorption mechanism for the freight elevator car according to claim 1, characterized in that, The lower beam (1) is a channel steel with the slot facing downwards.

7. The shock absorption mechanism for the freight elevator car according to claim 1, characterized in that, A plurality of parallel reinforcing beams (15) are fixedly connected between the two lower beams (1).

Images