CN211169431U - Elevator car shock absorber - Google Patents

Abstract

The application discloses an elevator car shock absorber, comprising: a first flat plate, a second flat plate and a third flat plate arranged in sequence, a first rubber pad is arranged between the first flat plate and the second flat plate, the second flat plate and A second rubber pad is arranged between the third flat plates, a through hole is arranged in the second rubber pad, a shock absorbing spring is arranged in the through hole, and both ends of the shock absorbing spring abut against the second flat plate and the third flat plate respectively. The thickness of the second rubber pad is 1.5-2.5 times the thickness of the first rubber pad. The elevator car shock absorber provided by the application can effectively block high-frequency vibration and low-frequency vibration during the operation of the car, and at the same time eliminates noise, has a long service life, is easy to install, and can be widely used in various Large and small passenger and freight elevators.

Description

elevator car shock absorber

technical field

The present application relates to the technical field of elevators, and in particular, to an elevator car shock absorber.

Background technique

In the vertical lift elevator, the shock absorber is equipped between the elevator car and the car bracket. During the operation of the elevator, it buffers the vibration of the car, maintains the stability of the car, and reduces noise inside the car. effect. At present, the car shock absorbers used in many elevators include two upper and lower flat plates and a rubber pad clamped between the two flat plates. Although the structure is simple and inexpensive, the rubber pad can only dampen the high-frequency vibration in motion. .

In the prior art, there are also shock absorbers using a single spring structure, but they can only dampen low-frequency vibrations, and the springs are made of rigid materials, so when they act on rigid components such as a car or a bracket, they cannot act as shock absorbers. Sound insulation.

Utility model content

Based on this, the present application provides a car shock absorber that simultaneously eliminates noise, high-frequency vibration and low-frequency vibration.

An elevator car shock absorber, comprising: a first flat plate, a second flat plate and a third flat plate arranged in sequence; a first rubber pad is arranged between the first flat plate and the second flat plate; A second rubber pad is arranged therebetween, a through hole is arranged in the second rubber pad, a shock absorbing spring is arranged in the through hole, and both ends of the shock absorbing spring abut against the second flat plate and the third flat plate respectively.

Several optional methods are also provided below, which are not intended to be additional limitations on the above-mentioned overall solution, but are merely further additions or optimizations. On the premise of no technical or logical contradiction, each optional method can be independently implemented for the above-mentioned overall solution. The combination can also be a combination between multiple optional ways.

Optionally, the thickness of the second rubber pad is 1.5-2.5 times the thickness of the first rubber pad.

Optionally, the thickness of the first rubber pad is 20-40 mm.

Optionally, the second rubber pad is provided with at least two through holes, and each of the through holes is respectively provided with a corresponding damping spring.

Optionally, each through hole is provided with a guide column, one end of the guide column is fixed on the second or third plate, and the other end has a gap with the adjacent third or second plate. on the guide post.

Optionally, the first flat plate or the third flat plate is provided with threaded holes, and the threaded holes are used for penetrating the bolts connecting the car brackets.

Optionally, there are at least two threaded holes located on both sides of adjacent rubber pads.

Optionally, the thicknesses of the first flat plate, the second flat plate and the third flat plate are respectively 3-8 mm.

The elevator car shock absorber provided by the application can effectively block the high-frequency vibration and low-frequency vibration during the operation of the car, and at the same time eliminates noise, has a long service life, is easy to install, and can be widely used in various Large and small passenger and freight elevators.

Description of drawings

FIG. 1 is a schematic diagram of one embodiment of an elevator car shock absorber;

Figure 2 is a cross-sectional view of one embodiment of an elevator car shock absorber;

Figure 3 is a cross-sectional view of another embodiment of an elevator car shock absorber.

In the figure: 1, the first plate; 2, the second plate; 3, the third plate; 4, the threaded hole; 5, the second rubber pad; 6, the first rubber pad; .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In order to better describe and illustrate the embodiments of the present application, reference may be made to one or more of the accompanying drawings, but the additional details or examples used to describe the drawings should not be considered as inventions of the present application, presently described Limitation of the scope of any of the embodiments or preferred modes.

It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or an intervening component may also exist. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a co-existing centered component.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are for the purpose of describing specific embodiments only, and are not intended to limit the application.

Referring to Fig. 1 and Fig. 2, an elevator car shock absorber includes: a first flat plate 1, a second flat plate 2 and a third flat plate 3 arranged in sequence, and between the first flat plate 1 and the second flat plate 2 is arranged There is a first rubber pad 6, a second rubber pad 5 is arranged between the second flat plate 2 and the third flat plate 3, a through hole is arranged in the second rubber pad 5, and a shock absorbing spring 7 is arranged in the through hole, and the shock absorbing spring Two ends of 7 abut against the second flat plate 2 and the third flat plate 3 respectively.

In the use state, the first flat plate 1, the second flat plate 2 and the third flat plate 3 are arranged in order from top to bottom, and the high-frequency vibration of the car during operation is isolated by the first rubber pad 6 and the second rubber pad 5, and the Playing a sound insulation effect, the shock-absorbing spring 7 in the through hole of the second rubber pad 5 can isolate the low-frequency vibration during the operation of the car, so that the car can be kept as stable as possible during the operation, and eliminate the increase in load or Reduce the failure of the shock absorber, the installation is simple and convenient, the service life is long, and the scope of use is wider.

The first rubber pad 6 and the second rubber pad 5 can be one of butadiene rubber, nitrile rubber, EPDM rubber, and fluorine rubber. The first rubber pad 6 and the second rubber pad 5 have excellent elastic properties, which can effectively dampen the high-frequency vibration during the operation of the car.

Different car loads and car dead weights use shock-absorbing springs 7 with different stiffnesses, which play a targeted role in damping low-frequency vibrations during car operation. For example, when the load of the car is (1000KG-1050KG), a shock-absorbing spring 7 with a stiffness of 330N/MM±10% is used, which has the best shock-absorbing effect on the car.

The thickness of the second rubber pad 5 is 1.5-2.5 times the thickness of the first rubber pad 6 . In one embodiment, as shown in FIGS. 1 and 2 , the thickness of the second rubber pad 5 is the thickness of the first rubber pad 6 1.6 times.

On the premise that the damping spring 7 has a certain stiffness, the thickness of the second rubber pad 5 will affect the deformation of the damping spring 7 to a certain extent, and the thickness of the second rubber pad 5 is greater than that of the first rubber pad 6 .

The thickness of the first rubber pad 6 and the second rubber pad 5 determines the ability to absorb high-frequency vibration to a certain extent. If the thickness of the first rubber pad 6 and the second rubber pad 5 is too thin, it is easy to reach the compression limit and lose shock absorption. If the thickness of the first rubber pad 6 and the second rubber pad 5 is too thick, it is easy to bring about the shaking of the car. The first rubber pad 6 is a solid cuboid, and the thickness of the first rubber pad 6 is 20-40 mm.

Referring to FIG. 1 and FIG. 2 , the second rubber pad 5 is provided with at least two through holes, and each of the through holes is respectively provided with a corresponding damping spring 7 .

A plurality of damping springs 7 exert damping force at various points to maintain the balance of the car running.

The area of the first flat plate 1 and the third flat plate 3 is larger than that of the second flat plate 2. In the use state, the first flat plate 1 is in contact with the bottom of the car, the third flat plate 3 is in contact with the car bracket, and the two sides of the second flat plate 2 are in contact with the bottom of the car. Contact with the first rubber pad 6 and the second rubber pad 5 respectively. The first rubber pad 6 and the second rubber pad 5 have the same cross-sectional area on the horizontal plane, and the area of the second flat plate 2 is larger than the cross-sectional area.

In the state where the shock absorber is not stressed, the two ends of the shock absorbing spring 7 abut against the second flat plate 2 and the third flat plate 3 respectively, and no impact sound will be generated during the movement.

Referring to FIG. 1 and FIG. 2, in one embodiment, each through hole is provided with a guide column 8, one end of the guide column 8 is fixed on the second flat plate 2 or the third flat plate 3, and the other end is connected to the adjacent The third plate 3 or the second plate 2 has a gap, and the damping spring 7 is sleeved on the guide column 8 .

The guide column 8 is used to limit the deformation of the shock-absorbing spring 7 in the unexpected direction and prevent the shock-absorbing spring 7 from displacing. There are two installation methods of the guide column 8. On the other hand, the other end has a gap with the adjacent third flat plate 3 ; secondly, one end of the guide column 8 is fixed on the third flat plate 3 , and the other end has a gap with the adjacent second flat plate 2 .

Referring to FIG. 2 , in one embodiment, the third flat plate 3 is provided with threaded holes 4 , and the threaded holes 4 are used to pass through the bolts connecting the car brackets.

Referring to FIG. 3 , in another embodiment, the first flat plate 1 is provided with threaded holes 4 , and the threaded holes 4 are used for penetrating the bolts connecting the car brackets.

There are at least two threaded holes 4 located on both sides of the adjacent rubber pads. Referring to FIG. 2 , there are two threaded holes 4 , which are located on both sides of the second rubber pad 5 respectively. Referring to FIG. 3 , there are two threaded holes 4 , which are located on both sides of the first rubber pad 6 respectively.

The thicknesses of the first flat plate 1 , the second flat plate 2 and the third flat plate 3 are respectively 3-8 mm.

The elevator car shock absorber provided by the present application can isolate high-frequency vibration and low-frequency vibration at the same time, and at the same time has a sound insulation effect.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the patent of the present application shall be subject to the appended claims.

Claims (8)

1. An elevator car shock absorber, characterized in that it comprises: a first flat plate, a second flat plate and a third flat plate arranged in sequence, a first rubber pad is arranged between the first flat plate and the second flat plate, a second flat plate A second rubber pad is arranged between the flat plate and the third flat plate, a through hole is arranged in the second rubber pad, a shock absorbing spring is arranged in the through hole, and both ends of the shock absorbing spring abut against the second flat plate and the third flat plate respectively. flat. 2 . The elevator car shock absorber according to claim 1 , wherein the thickness of the second rubber pad is 1.5-2.5 times the thickness of the first rubber pad. 3 . 3 . The elevator car shock absorber according to claim 2 , wherein the thickness of the first rubber pad is 20-40 mm. 4 . 4 . The elevator car shock absorber according to claim 1 , wherein at least two through holes are provided in the second rubber pad, and corresponding damping springs are respectively provided in each of the through holes. 5 . 5 . The elevator car shock absorber according to claim 1 , wherein each through hole is provided with a guide column, one end of the guide column is fixed on the second flat plate or the third flat plate, and the other end is connected to the adjacent flat plate. 6 . The third flat plate or the second flat plate has a gap, and the damping spring is sleeved on the guide post. 6 . The elevator car shock absorber according to claim 1 , wherein the first flat plate or the third flat plate is provided with threaded holes, and the threaded holes are used for penetrating bolts connecting the car brackets. 7 . 7 . The elevator car shock absorber according to claim 6 , wherein there are at least two threaded holes located on both sides of adjacent rubber pads. 8 . 8 . The elevator car shock absorber according to claim 1 , wherein the thicknesses of the first flat plate, the second flat plate and the third flat plate are respectively 3 to 8 mm. 9 .

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