CN218408294U

CN218408294U - Shock absorber and damping device

Info

Publication number: CN218408294U
Application number: CN202121130715.0U
Authority: CN
Inventors: 李振; 陈召; 刘国中; 吕哲诚; 王生贵; 程昊天
Original assignee: Shanghai Gaussian Automation Technology Development Co Ltd
Current assignee: Shanghai Gaussian Automation Technology Development Co Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2023-01-31
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a bumper shock absorber and damping device relates to the shock attenuation technology field. The damping device comprises a damping column, a damping cylinder and a rubber sleeve; the two ends of the rubber sleeve are connected with the first limiting disc and the damping cylinder respectively. The utility model provides a pair of bumper shock absorber and damping device, its damping performance is superior, and is resistant moist, corrosion-resistant, is applicable to moist and corrosive environment or other complicated application scenes.

Description

Shock absorber and damping device

Technical Field

The utility model relates to a shock attenuation technical field especially relates to a bumper shock absorber and damping device.

Background

The shock absorber, an important component of the suspension system, is mainly used to suppress the shock when the spring absorbs the shock and then rebounds and the impact from the road surface. When the shock absorber passes through the uneven road surface, although the shock absorbing spring can filter the shock of the road surface, the spring can still reciprocate, and the shock absorber is used for inhibiting the spring from jumping.

The existing shock absorber usually adopts a shock absorbing spring which is commonly used for vehicles such as automobiles, and the shock absorbing column, the shock absorbing spring and the like of the existing shock absorber have poor corrosion resistance and humidity resistance, and cannot adapt to a humid and corrosive environment or other complex application scenes.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model discloses a main object provides a bumper shock absorber and damping device, and its damping performance is superior, and is resistant moist, corrosion-resistant, is applicable to moist and corrosive environment or other complicated application scenes.

In order to realize the purpose, the technical scheme of the utility model is as follows:

a shock absorber comprises a shock absorbing column, a shock absorbing cylinder and a rubber sleeve; the first end welding of shock attenuation post has first spacing dish, the second end of shock attenuation post with damper cylinder swing joint, rubber sleeve's both ends respectively with first spacing dish the damper cylinder is connected.

Optionally, the rubber sleeve is a cylindrical cushion rubber, and a through hole for the shock absorbing column and/or the shock absorbing cylinder to penetrate is formed in the rubber sleeve.

Optionally, one end of the shock-absorbing cylinder close to the first limiting disc is connected with the rubber sleeve, and the rubber sleeve is located on the outer side of the shock-absorbing column.

Optionally, a second limiting disc is arranged on the damping cylinder, the rubber sleeve is arranged between the first limiting disc and the second limiting disc, and two ends of the rubber sleeve are connected with the first limiting disc and the second limiting disc respectively; the rubber sleeve is positioned on the outer sides of the shock absorption column and the shock absorption cylinder.

Optionally, a spiral spring is arranged in the wall of the rubber sleeve.

Optionally, the diameters of the first limiting disc and the second limiting disc are both larger than the diameter of the rubber sleeve.

Optionally, the rubber sleeve comprises an inner sleeve and an outer sleeve; the inner sleeve is positioned on the outer side of the shock absorption column, and two ends of the inner sleeve are respectively connected with one end of the shock absorption column close to the first limiting disc and the first limiting disc; the outer sleeve is located on the outer sides of the shock absorption column and the shock absorption cylinder, and two ends of the outer sleeve are connected with the first limiting disc and the second limiting disc respectively.

Optionally, the shock-absorbing device further comprises a first lifting lug and a second lifting lug, wherein the first lifting lug is fixedly connected with the first end of the shock-absorbing column; and one end of the shock absorption cylinder, which is far away from the shock absorption column, is fixedly connected with the second lifting lug.

Optionally, the outer sides of the shock absorption column and the shock absorption cylinder are further provided with dustproof sleeves.

The utility model also provides a damping device, include

A chassis, a plurality of supporting legs and a plurality of supporting legs,

the wheel carrier is hinged with the chassis and is used for mounting wheels;

and two ends of the shock absorber are respectively hinged with the chassis and the wheel frame.

The utility model provides a pair of shock absorber, through at first spacing dish set up rubber sleeve between the damper cylinder, adopt rubber sleeve to replace traditional damping spring to make to have more moisture-resistant, corrosion-resistant performance, and it has excellent damping performance, can more suitably the operational environment of robot, especially be applicable to the complicated application scene of automatic floor cleaning machine.

The utility model provides a pair of damping device adopts towed shock attenuation suspension, and foretell bumper shock absorber, has good moisture-resistant, corrosion-resistant performance, can satisfy complicated applied scene, the underloading occasion of specially adapted automatic floor cleaning machine.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a shock absorber according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a shock absorber according to another embodiment of the present invention;

fig. 3 is a schematic structural view of a shock absorber according to another embodiment of the present invention;

fig. 4 is a schematic structural view of a shock absorber according to another embodiment of the present invention;

fig. 5 is a schematic structural diagram of a shock absorbing device provided by an embodiment of the present invention;

FIG. 6 is a schematic view showing the structure of a rear wheel portion of a shock absorbing device shown in FIG. 5;

fig. 7 is a schematic view of the structure of a front wheel portion of a shock absorbing device according to fig. 5.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the present invention provides a shock absorber, which generally comprises a shock absorbing column 1, a shock absorbing cylinder 2 and a rubber sleeve 3. The first end of shock attenuation post 1 is equipped with first spacing dish 11. First spacing dish 11 and the first end fixed connection of shock absorber post 1, for example first spacing dish 11 welded fastening is in the first end of shock absorber post 1. The second end of the shock absorption column 1 is movably connected with the shock absorption cylinder 2. That is, the second end of the shock-absorbing column 1 can be inserted into the shock-absorbing cylinder 2 and reciprocated in the axial direction of the shock-absorbing column 1 by the pressure. The two ends of the rubber sleeve 3 are respectively connected with the first limiting disc 11 and the damper cylinder 2. The rubber sleeve 3 is made of a rubber material, which is a cylindrical cushion rubber. The rubber sleeve 3 is internally provided with a through hole for the shock absorption column 1 and/or the shock absorption cylinder 2 to penetrate. Optionally, the two ends of the shock absorber are further provided with a first lifting lug 6 and a second lifting lug 7. The first lifting lug 6 is fixedly connected with the first end of the shock absorption column 1; one end of the damping cylinder 2 far away from the damping column 1 is fixedly connected with the second lifting lug 7. The fixed connection can be a connection mode such as welding and the like. During the use, under the pressure effect at bumper shock absorber both ends, the axial direction removal along bumper shock absorber 1 is held to the second of bumper shock absorber 1 to in getting into damper cylinder 2, realize the compression of pressurized, rubber sleeve 3 plays the shock attenuation buffering, bears the effect of pressurized. In the process, the rubber sleeve 3 can play a strong role in buffering when the shock absorption column 1 is pressed down, so that the shock absorption performance of the shock absorber is improved. The utility model discloses a set up rubber sleeve 3 between first spacing dish 11, damper cylinder 2, adopt rubber sleeve 3 to replace traditional damping spring to make and have more resistant humidity, corrosion-resistant performance, and it has excellent damping performance, can more suitably the operational environment of robot, especially be applicable to the complicated application scene of automatic floor cleaning machine.

Alternatively, the shock-absorbing columns 1 and the shock-absorbing cylinders 2 can adopt hydraulic buffering or pneumatic buffering. The concrete structure of the shock-absorbing column 1 and the shock-absorbing cylinder 2 can be a hydraulic buffer mechanism well known to those skilled in the art, for example, the shock-absorbing column 1 adopts a piston rod, and the shock-absorbing cylinder 2 adopts an oil storage cylinder barrel, an air storage cylinder barrel and the like. Taking the piston rod and the oil storage cylinder barrel as an example, when the shock absorber is used, hydraulic oil enters the oil storage cylinder barrel, the hydraulic oil in the oil storage cylinder barrel forms counter shock immediately, the internal hydraulic oil flows back to the pressure barrel, one-time shock mitigation is completed, large shock is relieved into smaller shock, and the shock absorber reciprocates in the pressure barrel, so that the large shock is buffered to a vehicle body minimum shock bump state which is comfortable for a human body, and the shock absorption performance is completed.

In a specific embodiment, as shown in fig. 1, the damper cylinder 2 is provided with a second limiting disc 21. The second limiting disc 21 is fixedly connected to the outer wall of the damper cylinder 2. Optionally, the second limiting disc 21 is arranged on the damper cylinder 2 at a position far from the first limiting disc 11. The rubber sleeve 3 is arranged between the first limiting disc 11 and the second limiting disc 21. Two ends of the rubber sleeve 3 are respectively connected with the first limiting disc 11 and the second limiting disc 21. The rubber sleeve 3 is positioned outside the shock-absorbing column 1 and the shock-absorbing cylinder 2. When in use, the rubber sleeve 3 plays the roles of further damping, buffering and bearing pressure.

Optionally, the diameters of the first limiting disk 11 and the second limiting disk 21 are larger than the diameter of the rubber sleeve 3, so as to avoid the phenomenon that the rubber sleeve 3 is displaced and ejected in the compression process.

In another embodiment, as shown in fig. 4, a coil spring is provided in the cylindrical wall of the rubber sleeve 3. Through compounding formula structure as an organic whole with yielding rubber and coil spring, form compound damping spring, it has avoided coil spring's metal to expose, has good moisture resistance, corrosion resisting property, and the buffering shock attenuation is effectual, the operational environment that is more suitable robot than ordinary spring.

In another specific embodiment, as shown in fig. 2, the rubber sleeve 3 is located outside the shock-absorbing column 1. The rubber sleeve 3 is arranged between the first limiting disc 11 and the shock-absorbing cylinder 2. One end of the rubber sleeve 3 is connected with the first limiting disc 11, and the other end of the rubber sleeve is connected with one end of the shock-absorbing cylinder 2 close to the first limiting disc 11. Design like this need not to increase the spacing dish 21 of second on damper cylinder 2 for can reduce the diameter and the volume of bumper shock absorber by a wide margin, more be applicable to the service environment of robot etc.. When the shock absorber is used, after the shock absorber is pressed, the shock absorption column 1 moves in the shock absorption cylinder 2 along the axial direction of the shock absorption column, the rubber sleeve 3 is extruded simultaneously, and the rubber sleeve 3 deforms under the pressure, so that the effects of pressure bearing and shock absorption buffering are provided.

In another specific embodiment, as shown in fig. 3, the number of the rubber sleeves 3 is 2. The damping cylinder 2 is provided with a second limiting disc 21, and the rubber sleeve 3 comprises an inner sleeve 4 and an outer sleeve 5. The inner sleeve 4 is located outside the shock-absorbing column 1 and is used for connecting the shock-absorbing cylinder 2 and the first limiting disc 11. The outer sleeve 5 is located outside the shock-absorbing column 1 and the shock-absorbing cylinder 2 and is used for connecting the first limiting disc 11 and the second limiting disc 21. Namely, two ends of the inner sleeve 4 are respectively connected with one end of the damper cylinder 2 close to the first limiting disc 11 and the first limiting disc 11. The two ends of the outer sleeve 5 are respectively connected with the first limiting disc 11 and the second limiting disc 21. Through the design of the double rubber sleeve 3, the damping and buffering effect is better. And the outer sleeve 5 on the outer side can play a dustproof role at the same time, so that dust is prevented from entering the damping column 1 and the damping cylinder 2, and the service life and the damping performance are improved.

Optionally, the utility model provides a pair of bumper shock absorber, the outside of its shock strut 1 and damper cylinder 2 can also be equipped with the dirt proof boot (not shown in the figure). The dirt proof boot can play dirt-proof effect, prevents that dust from getting into shock attenuation post 1 and damper cylinder 2 in, improves life and shock attenuation performance.

As shown in fig. 5 to 7, the present invention further provides a damping device, which comprises a chassis 100, a wheel carrier 200 and a damper 300. The chassis 100 may be a vehicle, a robot, a bottom bracket of a moving mechanism. The wheel carriage 200 is used to mount the wheel 400, and the wheel 400 may include a front wheel, a rear wheel, and the like. One end (e.g., the upper end) of the wheel carriage 200 is hinged with the chassis 100. Both ends of the damper 300 are hinged with the wheel carriage 200 and the chassis 100, respectively, so that when the wheel 400 passes through an environment in which the road surface is uneven, the vibration of the road surface can be damped and filtered by the damper 300. The specific structure of shock absorber 300 can be seen from the foregoing, and is not described in detail herein.

It should be understood that the present invention relates to a damping device, which employs a trailing type damping suspension, and the specific structure of the trailing type damping suspension is not limited herein, and can be selected by those skilled in the art according to the needs and specific use environment. For example, as shown in fig. 6 and 7, different wheel carrier 200 structures are used for the front and rear wheel portions. The location of the hinge at each end of shock absorber 300 can also be selected by one skilled in the art based on the needs and the particular environment of use.

The robot such as automatic floor cleaning machine is full-load and unloaded to differ 150-200KG, can make when the shock absorber compressive capacity difference is great cause the potential influence to the sensor when robot automatic driving, the utility model discloses the one-level buffering that shock absorber 300 still provided passes through shock absorber 1 and damper cylinder 2 and the second grade buffering of rubber sleeve 3 for the shock absorber compressive capacity change value when the two-stage buffering can reduce unloaded and full-load, makes its full-load and unloaded complicated application scene that is more applicable to the robot. Meanwhile, the rubber sleeve 3 of the shock absorber 300 has good moisture resistance and corrosion resistance, and is particularly suitable for the wet use environment of robots such as an automatic floor washing machine.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A shock absorber is characterized by comprising a shock absorption column, a shock absorption cylinder and a rubber sleeve; a first limiting disc is arranged at the first end of the shock absorption column, the second end of the shock absorption column is movably connected with the shock absorption cylinder, and two ends of the rubber sleeve are respectively connected with the first limiting disc and the shock absorption cylinder;

the rubber sleeve is barrel-shaped buffer rubber, and a through hole for the shock absorption column and/or the shock absorption barrel to penetrate is formed in the rubber sleeve.

2. The shock absorber as claimed in claim 1, wherein one end of the shock-absorbing cylinder close to the first limiting disc is connected with the rubber sleeve, and the rubber sleeve is located outside the shock-absorbing column.

3. The shock absorber according to claim 1, wherein a second limiting disc is arranged on the shock absorbing cylinder, the rubber sleeve is arranged between the first limiting disc and the second limiting disc, and two ends of the rubber sleeve are respectively connected with the first limiting disc and the second limiting disc; the rubber sleeve is positioned on the outer sides of the shock absorption column and the shock absorption cylinder.

4. The shock absorber according to claim 3, wherein a coil spring is provided in a wall of the rubber sleeve.

5. The shock absorber according to claim 3, wherein the diameters of the first and second limiting discs are each larger than the diameter of the rubber sleeve.

6. The shock absorber according to claim 1, wherein said rubber sleeve comprises an inner sleeve and an outer sleeve; the inner sleeve is positioned on the outer side of the shock absorption column, and two ends of the inner sleeve are respectively connected with one end of the shock absorption column close to the first limiting disc and the first limiting disc; the shock-absorbing cylinder is provided with a second limiting disc, the outer sleeve is positioned on the shock-absorbing column and the outer side of the shock-absorbing cylinder, and two ends of the outer sleeve are connected with the first limiting disc and the second limiting disc respectively.

7. The shock absorber according to claim 1, further comprising a first lifting lug and a second lifting lug, wherein the first lifting lug is fixedly connected with the first end of the shock absorbing column; and one end of the shock-absorbing cylinder, which is far away from the shock-absorbing column, is fixedly connected with the second lifting lug.

8. The shock absorber according to claim 1, wherein the shock absorbing column and the shock absorbing cylinder are further provided with dust covers on the outer sides thereof.

9. A shock-absorbing device is characterized by comprising

The chassis is provided with a plurality of supporting plates,

the wheel carrier is hinged with the chassis and used for mounting wheels;

the damper of any one of claims 1-8, wherein both ends of the damper are hinged to the chassis and the wheel carrier, respectively.