CN211169431U - Elevator car shock absorber - Google Patents

Abstract

The application discloses elevator car bumper shock absorber includes: the damping device comprises a first flat plate, a second flat plate and a third flat plate which are sequentially arranged, wherein a first rubber pad is arranged between the first flat plate and the second flat plate, a second rubber pad is arranged between the second flat plate and the third flat plate, a through hole is formed in the second rubber pad, a damping spring is arranged in the through hole, and two ends of the damping spring are respectively abutted against the second flat plate and the third flat plate. The thickness of the second rubber pad is 1.5-2.5 times of that of the first rubber pad. The application provides an elevator car bumper shock absorber can all play effectual separation effect to high frequency vibrations, the low frequency vibrations of car operation in-process, simultaneously the noise elimination, long service life, simple to operate can extensively be used for various big or small load passenger, goods lift.

Description

Elevator car shock absorber

Technical Field

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

Background

In rectilinear elevator, the bumper shock absorber is equipped between elevator car and car bracket, at the elevator operation in-process, cushions the vibrations of car, maintains the steady of car, makes an uproar effect of falling to the car inside simultaneously. At present, a car damper used in many elevators comprises an upper plate, a lower plate and a rubber pad clamped between the upper plate and the lower plate, and although the structure is simple and the price is low, the rubber pad can only play a role in damping high-frequency vibration in motion.

In the prior art, a shock absorber adopting a single spring structure is also available, but the shock absorber can only absorb low-frequency vibration, and the spring is made of rigid material and cannot play a sound insulation effect when acting on rigid parts such as a car or a bracket.

SUMMERY OF THE UTILITY MODEL

Based on this, this application provides a car bumper shock absorber, noise abatement, high frequency vibrations and low frequency vibrations simultaneously.

An elevator car shock absorber, comprising: the damping device comprises a first flat plate, a second flat plate and a third flat plate which are sequentially arranged, wherein a first rubber pad is arranged between the first flat plate and the second flat plate, a second rubber pad is arranged between the second flat plate and the third flat plate, a through hole is formed in the second rubber pad, a damping spring is arranged in the through hole, and two ends of the damping spring are respectively abutted against the second flat plate and the third flat plate.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

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

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

Optionally, at least two through holes are formed in the second rubber pad, and corresponding damping springs are arranged in the through holes respectively.

Optionally, a guide post is arranged in each through hole, one end of each guide post is fixed on the second flat plate or the third flat plate, a gap is reserved between the other end of each guide post and the adjacent third flat plate or the adjacent second flat plate, and the damping spring is sleeved on the guide posts.

Optionally, a threaded hole is formed in the first flat plate or the third flat plate, and the threaded hole is used for penetrating through a bolt connected with the car bracket.

Optionally, the number of the threaded holes is at least two, and the threaded holes are located on two 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 application provides an elevator car bumper shock absorber can all play effectual separation effect to high frequency vibrations, the low frequency vibrations of car operation in-process, simultaneously the noise elimination, long service life, simple to operate can extensively be used for various big or small load passenger, goods lift.

Drawings

FIG. 1 is a schematic view of one embodiment of an elevator car damper;

figure 2 is a cross-sectional view of one embodiment of an elevator car damper;

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

In the figure: 1. a first plate; 2. a second plate; 3. a third plate; 4. a threaded hole; 5. a second rubber pad; 6. a first rubber pad; 7. a damping spring; 8. and a guide post.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

For a better description and illustration of embodiments of the application, reference may be made to one or more of the drawings, but additional details or examples for describing the drawings should not be construed as limiting the scope of any of the inventive concepts of the present application, the presently described embodiments, or the preferred versions.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 1 and 2, an elevator car damper includes: first dull and stereotyped 1, second dull and stereotyped 2 and the third flat board 3 that arrange in proper order are equipped with first rubber pad 6 between first dull and stereotyped 1 and the second flat board 2, are equipped with second rubber pad 5 between second flat board 2 and the third flat board 3, are equipped with the through-hole in the second rubber pad 5, are equipped with damping spring 7 in the through-hole, and damping spring 7's both ends are supported respectively and are leaned on second flat board 2 and third flat board 3.

Under the user state, first flat board 1, second flat board 2 and third flat board 3 from top to bottom arrange in proper order, through the isolated high frequency vibrations of car in the operation process of first rubber pad 6 and second rubber pad 5, and play syllable-dividing effect, damping spring 7 in the 5 through-holes of second rubber pad, can isolated low frequency vibrations of car operation in-process, make the car in the operation process, keep steady as far as possible, eliminate because of the increase of load or reduce the condition that leads to the bumper shock absorber inefficacy, the installation is simple and convenient, long service life, wide application range.

The first rubber pad 6 and the second rubber pad 5 can be made of one of butadiene rubber, nitrile rubber, ethylene propylene diene monomer rubber and fluororubber. The first rubber pad 6 and the second rubber pad 5 have excellent elastic performance, and play an effective damping role in high-frequency vibration in the running process of the car.

Damping springs 7 with different rigidity are adopted for different car loads and car deadweights, and accordingly the damping effect on low-frequency vibration in the car running process is achieved in a targeted mode. For example, the damping spring 7 with the rigidity of 330N/MM +/-10% is adopted for the car load (1000 KG-1050 KG), and the damping effect on the car is optimal.

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

On the premise that the rigidity of the damping spring 7 is certain, the deformation quantity of the damping spring 7 is influenced to a certain extent by the thickness of the second rubber pad 5, and the thickness of the second rubber pad 5 is larger than that of the first rubber pad 6.

The thickness of first rubber pad 6 and second rubber pad 5 has decided the ability of absorbing high frequency vibrations to a certain extent, and the thickness of first rubber pad 6 and second rubber pad 5 is too thin, reaches the compression limit easily, loses the shock-absorbing capacity, if the thickness of first rubber pad 6 and second rubber pad 5 is too thick, brings rocking of car again easily. First rubber pad 6 is solid cuboid, and first rubber pad 6's thickness is 20 ~ 40 mm.

Referring to fig. 1 and 2, at least two through holes are formed in the second rubber pad 5, and a corresponding damping spring 7 is arranged in each through hole.

A plurality of damping springs 7 apply damping force at a plurality of points to maintain the balance of the car operation.

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

Under the state that the bumper shock absorber is not atress, the both ends of damper spring 7 support respectively and lean on second flat board 2 and third flat board 3, in the motion process, can not produce the impact sound.

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

The guide posts 8 are used for limiting the deformation of the damping spring 7 in an unexpected direction and preventing the damping spring 7 from displacing, and the guide posts 8 are mounted in two ways, wherein one end of each guide post 8 is fixed on the second flat plate 2, and the other end of each guide post 8 has a gap with the adjacent third flat plate 3; second, one end of the guide post 8 is fixed to 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 plate 3 is provided with a threaded hole 4, and the threaded hole 4 is used for penetrating a bolt for connecting a car bracket.

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

The threaded holes 4 are at least two and are positioned on two sides of adjacent rubber pads. Referring to fig. 2, two threaded holes 4 are provided, and are respectively located on two sides of the second rubber pad 5. Referring to fig. 3, two threaded holes 4 are provided, and are respectively located on two sides of the first rubber pad 6.

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 application provides an elevator car bumper shock absorber when using, can completely cut off high frequency vibrations and low frequency vibrations simultaneously, plays syllable-dividing effect simultaneously.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1. An elevator car shock absorber, comprising: the damping device comprises a first flat plate, a second flat plate and a third flat plate which are sequentially arranged, wherein a first rubber pad is arranged between the first flat plate and the second flat plate, a second rubber pad is arranged between the second flat plate and the third flat plate, a through hole is formed in the second rubber pad, a damping spring is arranged in the through hole, and two ends of the damping spring are respectively abutted against the second flat plate and the third flat plate.

2. The elevator car damper of claim 1, wherein the second rubber mat is 1.5-2.5 times thicker than the first rubber mat.

3. The elevator car damper of claim 2, wherein the first rubber mat has a thickness of 20-40 mm.

4. The elevator car shock absorber of claim 1, wherein the second rubber pad has at least two through holes therein, each through hole having a corresponding damping spring therein.

5. The elevator car damper of claim 1, wherein a guide post is disposed in each through hole, one end of the guide post is fixed to the second plate or the third plate, and the other end of the guide post has a gap from the adjacent third plate or the second plate, and the damping spring is fitted over the guide post.

6. The elevator car shock absorber of claim 1, wherein the first or third plate has a threaded hole therethrough for receiving a bolt that connects the car brackets.

7. The elevator car shock absorber of claim 6, wherein the threaded holes are at least two and are located on either side of an adjacent rubber pad.

8. The elevator car damper according to any one of claims 1 to 7, wherein the first flat plate, the second flat plate, and the third flat plate each have a thickness of 3 to 8 mm.

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