Elevator car rail roller damping device
By combining the car rollers, T-shaped roller brackets, rocker arms, and buffer springs, the problem of complex and high maintenance costs of existing elevator track roller vibration damping devices is solved, achieving smooth and quiet elevator operation and improving passenger comfort.
Patent Information
- Application Number
- CN202422951336.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing elevator track roller vibration damping devices have complex structures, are time-consuming to install, and have high maintenance costs.
It adopts a combination structure of car rollers, T-shaped roller brackets, rocker arms, buffer springs and cross pins. Through the cooperation of rocker arms and buffer springs, the horizontal vibration of the elevator car is converted into a reaction force to reduce swaying, and rubber rings are used to reduce noise.
It significantly reduces horizontal vibration and impact during elevator operation, improves the stability of the car interior and passenger comfort, and has a simple structure and is easy to install.
Smart Images
Figure CN223509442U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of elevator technology, specifically, it relates to a shock-absorbing device for elevator car track rollers. Background Technology
[0002] Elevator cars often bear significant weight from passengers or goods during operation. To ensure safety, elevator car track rollers are typically installed between the car and the elevator tracks. The primary function of these rollers is to horizontally support the elevator car, ensuring its stable vertical movement along the guide rails under the drive of the traction device. During operation, the track rollers bear the horizontal load of the elevator car, buffering various impacts and ensuring the car runs stably and linearly along the guide rails. Therefore, elevator track rollers play a crucial role in the elevator system, ensuring stable operation, protecting the tracks, and reducing energy loss.
[0003] Existing track roller vibration damping devices often have complex structures, are time-consuming to install, and have high maintenance costs. Therefore, in practical applications, there is still a need for track roller vibration damping devices with simpler structures. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, this utility model provides an elevator car track roller shock absorption device, including a car roller, a T-shaped roller bracket, a rocker arm, a buffer spring, and a cross pin, wherein:
[0005] The car rollers are provided with a central through hole and the roller shafts are installed through roller bearings;
[0006] The T-shaped roller bracket includes a base and a support arm extending vertically to one side from the middle of the base; the base has fixing holes on both sides of the support arm for fixing to the side wall of the elevator car by means of fasteners; the support arm has a shaft hole on the side near the base and a rocker arm shaft is installed by a rocker arm bearing; a notch is opened at the lower part of the end of the support arm away from the base, and a vertical through hole is opened above the notch;
[0007] The rocker arm is roughly L-shaped, with a first through hole and a second through hole at its top and middle, respectively, and a square opening at its bottom; the roller shaft passes through the first through hole and is fixed with a nut, thereby rotatably connecting the rocker arm to the car roller; the rocker arm shaft passes through the second through hole and is fixed with a nut, thereby rotatably connecting the rocker arm to the support arm of the T-shaped roller bracket.
[0008] The buffer spring passes through a central shaft above the vertical through hole of the support arm of the T-shaped roller bracket and is fixed by a nut provided on the upper part of the central shaft.
[0009] The horizontal pin includes a head and a tail with its upper and lower surfaces machined into two parallel planes, and the tail has an inner hole that passes through the two parallel planes; the lower end of the central shaft passes through the vertical through hole of the support arm and the inner hole of the horizontal pin in sequence, and a nut is set at the end to limit the horizontal pin; the head of the horizontal pin is inserted into the square opening at the bottom of the rocker arm.
[0010] Furthermore, the buffer spring is provided with a spring pressure ring and a spring support at the top and bottom, respectively.
[0011] Furthermore, the inner surface of the square opening of the rocker arm is a semi-cylindrical surface.
[0012] Furthermore, on the same side of the rocker arm, the angle formed by the line segment between the center of the first through hole and the center of the second through hole and the line segment between the center of the second through hole and the center of the inner side of the square opening is 60 to 120 degrees.
[0013] Furthermore, the head of the horizontal pin is a cylinder, and the tail is a cylinder with two parallel planes machined from the cylinder.
[0014] The elevator car track roller shock absorption device provided by this utility model can significantly reduce horizontal vibration and impact during elevator operation, ensure the stability and quietness of the car interior, improve the comfort of riding, and has the advantages of simple structure and convenient installation. Attached Figure Description
[0015] Figure 1 This is one of the overall structural diagrams of the elevator car track roller vibration damping device.
[0016] Figure 2 This is a structural diagram of the elevator car track roller damping device from another perspective.
[0017] Figure 3 This is a structural diagram of part 14, the T-shaped roller bracket in the elevator car track roller damping device.
[0018] Figure 4 This is a structural diagram of the rocker arm 12 component in the elevator car track roller vibration damping device.
[0019] Figure 5 This is a structural diagram of the horizontal pin 11 in the elevator car track roller damping device.
[0020] Drawing number explanation: 1. Car track, 2. Bearing fixing circlip, 3. Roller bearing, 4. Roller shaft, 5. Car roller, 6. Central shaft, 7. Nut, 8. Spring pressure ring, 9. Buffer spring, 10. Spring support, 11. Horizontal pin, 111. Horizontal pin head, 112. Horizontal pin tail, 12. Rocker arm, 13. Rocker arm shaft, 14. T-shaped roller bracket, 141. Base, 142. Support arm, 15. Rocker arm bearing, 16. Fixing hole, 17. Shaft hole, 18. Notch, 19. Vertical through hole, 20. First through hole, 21. Second through hole, 22. Square opening, 23. Inner hole. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] like Figure 1 and Figure 2 As shown, the elevator car track roller damping device of this embodiment includes a car roller 5, a T-shaped roller bracket 14, a rocker arm 12, a buffer spring 9, and a cross pin 11, wherein:
[0023] The car roller 5 is provided with a central through hole (not shown in the figure), and a roller shaft 4 is installed through the roller bearing 3;
[0024] Combination Figure 3 As shown, the T-shaped roller bracket 14 includes a base 141 and a support arm 142 extending vertically to one side from the middle of the base 141; the base 141 has fixing holes 16 on both sides of the support arm 142 for fixing to the side wall of the elevator car (not shown in the figure) by means of fasteners, such as bolts; the support arm 142 has a shaft hole 17 on the side near the base 141, and a rocker arm shaft 13 is installed by means of a rocker arm bearing 15; a notch 18 is opened at the lower part of the end of the support arm 142 away from the base 141, and a vertical through hole 19 is opened above the notch 18;
[0025] Combination Figure 4 As shown, the rocker arm 12 is generally L-shaped, with a first through hole 20 and a second through hole 21 at its top and middle, respectively, and a square opening 22 at its bottom; the roller shaft 4 passes through the first through hole 20 and is fixed with a nut 7, thereby rotatably connecting the rocker arm 12 to the car roller 5; the rocker arm shaft 13 passes through the second through hole 21 and is fixed with a nut 7, thereby rotatably connecting the rocker arm 12 to the support arm 142 of the T-shaped roller bracket 14;
[0026] The buffer spring 9 passes through a central shaft 6 above the vertical through hole 19 of the support arm 142 of the T-shaped roller bracket 14. The buffer spring 9 is provided with a spring pressure ring 8 and a spring support 10 above and below, respectively, and is fixed by a nut 7 provided on the upper part of the central shaft 6.
[0027] Combination Figure 5 As shown, the horizontal pin 11 includes a cylindrical head 111 and a tail 112 whose upper and lower surfaces are machined into two parallel planes. The tail 112 has an inner hole 23 that passes through the two parallel planes. The lower end of the central shaft 6 passes through the vertical through hole 19 of the support arm 142 and the inner hole 23 of the horizontal pin 11 in sequence, and a nut 7 is provided at the end to limit the horizontal pin 11. The head 111 of the horizontal pin 11 is inserted into the square opening 22 at the bottom of the rocker arm 12.
[0028] In this embodiment, the inner surface of the square opening 22 of the rocker arm 12 is a semi-cylindrical surface.
[0029] Furthermore, on the same side of the rocker arm 12, the angle formed by the line segment between the center of the first through hole 20 and the center of the second through hole 21 and the line segment between the center of the second through hole 21 and the center of the inner side of the square opening 22 is 60 to 120 degrees.
[0030] Furthermore, the head 111 of the horizontal pin 11 is a cylinder, and the tail 112 is a cylinder with two parallel planes machined from the cylinder.
[0031] The working principle of the elevator car track roller shock absorption device of this utility model is as follows.
[0032] The elevator car track roller vibration damping device of this utility model can be installed on the elevator car through the fixing holes 16 on the base of the roller bracket 14 using fasteners. Multiple car tracks 1 are installed in the elevator shaft along the elevator's running direction. The surface of the car roller 5 presses tightly against the car track 1, and the axis of the car roller 5 is perpendicular to the car track 1. When the elevator is running, the entire device moves up and down with the car, and the car roller 5 rotates around the roller shaft 4. When the elevator is running, the horizontal vibration of the car causes the position of the roller relative to the roller bracket 14 to change. That is, the car roller 5 is subjected to the horizontal pressure of the car track 1, which drives the rocker arm 12 to rotate relative to the roller bracket 14 around the axis of the rocker arm shaft 13. This is converted into a pulling force on the horizontal pin 11 by the square opening 22 of the rocker arm 12, thereby applying pressure to the buffer spring 9 and causing the spring to deform. Correspondingly, the compressed buffer spring 9 applies a reaction force, which is transmitted through the horizontal pin 11 and the rocker arm 12 to the car roller 5, and then acts on the car guide rail 1. In summary, the elevator car track roller vibration damping device of this invention can simultaneously apply force to the elevator guide rail 1 and the elevator car when the elevator experiences horizontal vibration. This can be understood as applying a force opposite to the direction of the car's vibration displacement to reduce the amount of car swaying and dissipate the energy of the vibration, thereby achieving the purpose of vibration damping.
[0033] The elevator car track roller vibration damping device of this utility model consists of an inner metal ring and an outer rubber ring. The elasticity of the rubber further reduces vibration and noise during elevator operation. Furthermore, this elevator car track roller vibration damping device can be installed on the elevator side wall according to the different through-hole directions on the base. Its simple structure and small size allow for the simultaneous installation of one or more devices in different directions on each elevator car, corresponding to multiple elevator guide rails, achieving a cumulative vibration damping effect.
[0034] Compared with the prior art, the elevator car track roller shock absorption device provided by this utility model has the advantages of simple structure and convenient installation. It can significantly reduce horizontal vibration and impact during elevator operation, ensure the smoothness and quietness of the car interior, and improve the comfort of riding.
Claims
1. A shock-absorbing device for elevator car track rollers, comprising car rollers (5), T-shaped roller brackets (14), rocker arms (12), buffer springs (9), and cross pins (11), characterized in that: The car roller (5) is provided with a central through hole and a roller shaft (4) is installed through the roller bearing (3); The T-shaped roller bracket (14) includes a base (141) and a support arm (142) extending vertically to one side from the middle of the base (141); the base (141) has fixing holes (16) on both sides of the support arm (142); the support arm (142) has a shaft hole (17) on the side near the base (141) and a rocker arm shaft (13) is installed through a rocker arm bearing (15); a notch (18) is opened at the lower part of the end of the support arm (142) away from the base (141), and a vertical through hole (19) is opened above the notch (18); The rocker arm (12) is generally L-shaped, with a first through hole (20) and a second through hole (21) at its top and middle, respectively, and a square opening (22) at its bottom. The roller shaft (4) passes through the first through hole (20) and is fixed with a nut (7), thereby rotatably connecting the rocker arm (12) to the car roller (5). The rocker arm shaft (13) passes through the second through hole (21) and is fixed with a nut (7), thereby rotatably connecting the rocker arm (12) to the support arm (142) of the T-shaped roller bracket (14). The buffer spring (9) passes through a central shaft (6) above the vertical through hole (19) of the support arm (142) of the T-shaped roller bracket (14), and is fixed by the nut (7) provided on the upper part of the central shaft (6); The horizontal pin (11) includes a head (111) and a tail (112) whose upper and lower surfaces are machined into two parallel planes. The tail (112) has an inner hole (23) that passes through the two parallel planes. The lower end of the central shaft (6) passes through the vertical through hole (19) of the support arm (142) and the inner hole (23) of the horizontal pin (11) in sequence, and a nut (7) is provided at the end to limit the horizontal pin (11). The head (111) of the horizontal pin (11) is inserted into the square opening (22) at the bottom of the rocker arm (12).
2. The apparatus as claimed in claim 1, characterized in that, The inner side of the square opening (22) of the rocker arm (12) is a semi-cylindrical surface.
3. The apparatus as described in claim 2, characterized in that, On the same side of the rocker arm (12), the angle between the line segment between the center of the first through hole (20) and the center of the second through hole (21) and the line segment between the center of the second through hole (21) and the center of the inner side of the square opening (22) is 60 to 120 degrees.
4. The apparatus as claimed in claim 1, characterized in that, The head (111) of the horizontal pin (11) is a cylinder, and the tail (112) is a cylinder with two parallel planes machined from the cylinder.
5. The apparatus as claimed in claim 1, characterized in that, The buffer spring (9) is provided with a spring pressure ring (8) and a spring support (10) at the top and bottom, respectively.