Novel damping device for elevator host

Abstract

The utility model discloses a novel damping device for an elevator main engine, which belongs to the technical field of damping devices and comprises a support component, the support component comprises a first support plate, a spherical hinge support plate is integrally arranged above the first support plate, a spherical core is hinged inside the spherical hinge support plate, and a second support plate is arranged above the spherical hinge support plate. A second support plate is integrally arranged at the top of the ball core; a plurality of groups of belleville springs are connected between the first support plate and the second support plate; and the honeycomb base plate is connected to the upper surface of the second support plate, and the center of the honeycomb base plate is fixedly connected with a threaded connecting rod. Three-degree-of-freedom bearing is achieved through the supporting assembly, vertical pressure, horizontal shearing force and torsional moment are borne at the same time through cooperation of a ball core and a sliding interface, a three-dimensional stress system is formed, meanwhile, load uniformization is achieved, stress distribution is uniform through the spherical surface contact design, and local stress concentration is avoided.

Description

Technical Field

[0001] This utility model relates to the field of shock absorption device technology, specifically a novel shock absorption device for elevator main units. Background Technology

[0002] Elevator traction machine vibration damping pads are vibration reduction devices used to reduce the vibration and noise generated by elevator traction machines during operation. These pads are widely used in high-rise buildings, especially as building height and elevator speed increase, leading to increased power and vibration from the traction machine, which can generate noise and vibration, affecting passenger comfort and the lives of surrounding residents. By using vibration damping pads, vibration and noise can be significantly reduced, improving the smoothness and comfort of elevator operation.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN212131192U) discloses an elevator main unit vibration damping device, comprising a connecting rod and a supporting top plate. The connecting rod is fixedly connected to the supporting top plate, and a vibration damping spring is provided at the bottom of the supporting top plate. A limiting device is provided at the lower end of the vibration damping spring, and a rubber layer is provided at the bottom of the vibration damping spring. The rubber layer is installed on a load-bearing base, and the two sides of the load-bearing base are bent to form L-shaped bends. The advantages of this utility model are that the elevator main unit vibration damping device has a simple structure, prevents the rubber from being deformed by compression, limits the vibration damping spring, and has a good vibration damping effect.

[0004] Although the aforementioned patent achieves shock absorption through rubber, it can only achieve axial buffering and shock absorption. However, when the traction machine is working, the multi-directional loads it generates are transmitted to the rubber pad, causing uneven stress distribution and accelerated aging. This can lead to the rubber pad breaking or breaking, resulting in greater vibration and noise during elevator operation. In severe cases, it may even cause malfunction or damage to the elevator main unit, thus affecting the overall operational safety of the elevator.

[0005] Therefore, this utility model provides a novel shock absorption device for elevator main units to solve the above-mentioned problems. Utility Model Content

[0006] This utility model provides a novel shock absorption device for elevator main units, aiming to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a novel shock-absorbing device for an elevator host, comprising a support assembly, the support assembly comprising a first support plate, a ball hinge support plate integrally disposed above the first support plate, a ball core hinged inside the ball hinge support plate, a second support plate integrally disposed on the top of the ball core, and a plurality of butterfly springs connected between the first support plate and the second support plate.

[0008] A honeycomb substrate is connected to the upper surface of the second support plate. A threaded connecting rod is fixedly connected to the center of the honeycomb substrate. An ACF rubber pad and a metal-rubber composite pad are sequentially sleeved on the outer wall of the threaded connecting rod. The metal-rubber composite pad and the threaded connecting rod are connected to the bottom support of the traction machine.

[0009] As a preferred technical solution of this application, the first support plate, the second support plate, the honeycomb substrate and the metal rubber composite pad have the same external dimensions, and positioning holes are provided at the corners of the first support plate, the second support plate, the honeycomb substrate and the metal rubber composite pad. The first support plate is rigidly connected to the elevator support frame by bolts.

[0010] As a preferred technical solution of this application, anti-slip textures are provided on the side of the first support plate and the metal-rubber composite pad that are far apart from each other. The honeycomb substrate has a honeycomb structure corresponding to the ACF rubber pad. The honeycomb pore size of the honeycomb substrate is gradient distributed and the pore size of the edge area is 20% to 40% smaller than that of the center area.

[0011] As a preferred technical solution of this application, a soundproof cover is integrally provided on the lower surface of the second support plate, and the soundproof cover covers the outside of the ball core and the ball hinge support plate. The inner diameter of the soundproof cover is larger than the outer diameter of the ball core, the outer diameter of the ball core is equal to the outer diameter of the ball hinge support plate, and six sets of butterfly springs are evenly distributed around the circumference.

[0012] As a preferred technical solution of this application, a positioning rod is fixedly inserted into the upper surface of the second support plate. The honeycomb substrate, ACF rubber pad, metal-rubber composite pad and threaded connecting rod are provided with insertion grooves at the corresponding positioning rods. The center of the positioning rod is located on the circumference of the threaded connecting rod. The threaded connecting rod extends through to the outer wall above the metal-rubber composite pad and is provided with a threaded end.

[0013] As a preferred technical solution of this application, the metal-rubber composite pad includes stainless steel wire mesh and neoprene rubber, and the stainless steel wire mesh and neoprene rubber are in an alternating laminated structure. The stainless steel wire mesh is provided in no less than five layers, and the thickness of the metal-rubber composite pad is in the range of 3mm to 5mm.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves three-degree-of-freedom load bearing through the support component. Through the cooperation of the ball core and the sliding interface, it simultaneously bears vertical pressure, horizontal shear force and torsional moment, forming a three-dimensional force system. At the same time, it achieves load uniformity. The spherical contact design makes the stress distribution uniform, avoids local stress concentration, and significantly reduces the risk of structural fatigue damage. With the addition of disc springs, it adapts to displacement in different directions and achieves adaptive compensation of its deflection angle, making its force uniform.

[0015] This invention significantly improves the vibration damping effect of the device through a multi-stage damping design. The contact between the metal-rubber composite pad and the traction machine base reduces the probability of wear on traditional rubber pads, thereby improving contact stability. Simultaneously, the honeycomb substrate further enhances its pressure-bearing capacity. Furthermore, the ACF rubber pad, replacing traditional rubber pads, effectively absorbs and reduces vibrations due to its extremely high energy absorption capacity, providing better damping. Its superior anti-aging and wear-resistant properties further reduce the probability of wear and extend its service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the axial cross-sectional structure of the threaded connecting rod of this utility model;

[0019] Figure 4 This is an exploded view of the support component of this utility model;

[0020] Figure 5 This is a schematic diagram of the exploded structure of the metal-rubber composite pad of this utility model.

[0021] In the picture:

[0022] 1. Support assembly; 11. First support plate; 12. Ball joint support plate; 13. Ball core; 14. Second support plate; 15. Soundproof cover; 16. Butterfly spring; 2. Honeycomb substrate; 3. ACF rubber pad; 4. Metal-rubber composite pad; 41. Stainless steel wire mesh; 42. Neoprene rubber; 5. Threaded connecting rod; 6. Positioning rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-5As shown, this utility model provides a novel shock absorption device for an elevator main unit, including a support assembly 1. The support assembly 1 includes a first support plate 11, a ball joint support plate 12 integrally disposed above the first support plate 11, a ball core 13 hinged inside the ball joint support plate 12, a second support plate 14 integrally disposed on the top of the ball core 13, and a plurality of butterfly springs 16 connected between the first support plate 11 and the second support plate 14; a honeycomb substrate 2, which is connected to the upper surface of the second support plate 14, and a threaded connecting rod 5 fixedly connected to the center of the honeycomb substrate 2. The outer wall of the connecting rod 5 is sequentially fitted with an ACF rubber pad 3 and a metal-rubber composite pad 4. The metal-rubber composite pad 4 and the threaded connecting rod 5 are connected to the bottom support of the traction machine. Through the setting of the support component 1, the device can simultaneously bear vertical pressure, horizontal shear force and torsional moment, forming a three-dimensional force system to realize multi-directional load transfer and load uniformity. The spherical contact design makes the stress distribution uniform, avoids local stress concentration, significantly reduces the risk of structural fatigue damage, and thus greatly improves the service life of the device and enhances its vibration reduction stability and safety.

[0025] Furthermore, the first support plate 11, the second support plate 14, the honeycomb substrate 2, and the metal-rubber composite pad 4 have the same external dimensions, and positioning holes are provided at the corners of the first support plate 11, the second support plate 14, the honeycomb substrate 2, and the metal-rubber composite pad 4. The first support plate 11 is rigidly connected to the elevator support frame by bolts. Anti-slip textures are provided on the opposite sides of the first support plate 11 and the metal-rubber composite pad 4. The honeycomb substrate 2 has a honeycomb structure corresponding to the ACF rubber pad 3. The honeycomb pore size of the honeycomb substrate 2 is gradient distributed, and the pore size in the edge area is 20% to 40% smaller than that in the center area. The anti-slip textures on the surface of the first support plate 11 and the metal-rubber composite pad 4 can reduce the friction with the external structure, thereby improving the stability of the device installation. The honeycomb structure of the honeycomb substrate 2 improves its compressive strength and achieves stress dispersion under load, avoiding localized stress.

[0026] Furthermore, a soundproof cover 15 is integrally provided on the lower surface of the second support plate 14, and the soundproof cover 15 covers the outside of the ball core 13 and the ball hinge support plate 12. The inner diameter of the soundproof cover 15 is larger than the outer diameter of the ball core 13, and the outer diameter of the ball core 13 is equal to the outer diameter of the ball hinge support plate 12. Six sets of butterfly springs 16 are evenly distributed around the circumference. Through the setting of the butterfly springs 16, adaptive compensation for the deflection angle of the second support plate 14 is realized, so that the force distribution is uniform while realizing its rapid reset and improving its shock absorption effect.

[0027] Furthermore, a positioning rod 6 is fixedly inserted into the upper surface of the second support plate 14. The honeycomb substrate 2, ACF rubber pad 3, metal-rubber composite pad 4, and threaded connecting rod 5 are provided with insertion slots corresponding to the positioning rod 6. The center of the positioning rod 6 is located on the circumference of the threaded connecting rod 5. The threaded connecting rod 5 extends through to the outer wall above the metal-rubber composite pad 4 and is provided with a threaded end. By rigidly connecting the metal-rubber composite pad 4 and the threaded connecting rod 5 to the traction machine base, the vibration generated during the operation of the traction machine can be transmitted to the damping device, thereby reducing the noise generated during the operation of the traction machine and improving the smoothness and comfort of the elevator operation.

[0028] Furthermore, the metal-rubber composite pad 4 includes stainless steel wire mesh 41 and neoprene rubber 42, and the stainless steel wire mesh 41 and neoprene rubber 42 are in an alternating laminated structure. The stainless steel wire mesh 41 is provided in no less than five layers. The thickness of the metal-rubber composite pad 4 ranges from 3mm to 5mm. Through the setting of its composite structure, its own strength is greatly improved, effectively improving its wear resistance and avoiding the rapid wear of traditional single rubber materials.

[0029] Working principle: First, the device is installed. When the traction machine is working, the resonance it generates is transmitted to the damping device in multiple directions. Through the multi-directional load transmission of the support component 1 and the cooperation of multi-stage damping, the damping device greatly improves the efficient buffering and damping of the traction machine, thereby reducing the noise generated by the vibration of the traction machine during operation and improving the smoothness and comfort of elevator operation.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A new shock absorbing device for elevator main machine, characterized by: The system includes a support assembly (1), which includes a first support plate (11). A ball joint support plate (12) is integrally provided above the first support plate (11). A ball core (13) is hinged inside the ball joint support plate (12). A second support plate (14) is integrally provided on the top of the ball core (13). A plurality of butterfly springs (16) are connected between the first support plate (11) and the second support plate (14). A honeycomb substrate (2) is connected to the upper surface of the second support plate (14). A threaded connecting rod (5) is fixedly connected to the center of the honeycomb substrate (2). An ACF rubber pad (3) and a metal rubber composite pad (4) are sequentially sleeved on the outer wall of the threaded connecting rod (5). The metal rubber composite pad (4) and the threaded connecting rod (5) are connected to the bottom support of the traction machine.

2. A new shock absorbing device for elevator main machine according to claim 1, characterized in that: The first support plate (11), the second support plate (14), the honeycomb substrate (2) and the metal rubber composite pad (4) have the same external dimensions, and positioning holes are provided at the corners of the first support plate (11), the second support plate (14), the honeycomb substrate (2) and the metal rubber composite pad (4). The first support plate (11) is rigidly connected to the elevator support frame by bolts.

3. A new shock absorbing device for elevator main machine as claimed in claim 2, wherein: The first support plate (11) and the metal rubber composite pad (4) are both provided with anti-slip texture on the side away from each other. The honeycomb substrate (2) has a honeycomb structure corresponding to the ACF rubber pad (3). The honeycomb pore size of the honeycomb substrate (2) is distributed in a gradient and the pore size of the edge area is 20% to 40% smaller than that of the center area.

4. A new shock absorbing device for elevator main machine according to claim 3, characterized in that: The lower surface of the second support plate (14) is integrally provided with a soundproof cover (15), and the soundproof cover (15) covers the outside of the ball core (13) and the ball hinge support plate (12). The inner diameter of the soundproof cover (15) is larger than the outer diameter of the ball core (13), and the outer diameter of the ball core (13) is equal to the outer diameter of the ball hinge support plate (12). The butterfly spring (16) has six sets evenly distributed around its circumference.

5. A new shock absorbing device for elevator main machine as claimed in claim 1, wherein: The upper surface of the second support plate (14) is fixedly connected with a positioning rod (6). The honeycomb substrate (2), ACF rubber pad (3), metal rubber composite pad (4) and threaded connecting rod (5) are provided with insertion grooves at the corresponding positioning rod (6). The center of the positioning rod (6) is located on the circumference of the threaded connecting rod (5). The threaded connecting rod (5) extends through to the outer wall above the metal rubber composite pad (4) and is provided with a threaded end.

6. A new shock absorbing device for elevator main machine according to claim 5, characterized in that: The metal-rubber composite pad (4) includes stainless steel wire mesh (41) and neoprene rubber (42), and the stainless steel wire mesh (41) and neoprene rubber (42) are in an alternating laminated structure. The stainless steel wire mesh (41) is provided with no less than five layers, and the thickness of the metal-rubber composite pad (4) is in the range of 3mm to 5mm.

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