CN221033754U - Damping device - Google Patents
Damping device Download PDFInfo
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- CN221033754U CN221033754U CN202322650582.5U CN202322650582U CN221033754U CN 221033754 U CN221033754 U CN 221033754U CN 202322650582 U CN202322650582 U CN 202322650582U CN 221033754 U CN221033754 U CN 221033754U
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- hydraulic cylinder
- fixedly connected
- annular
- piston
- cylinder
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- 238000013016 damping Methods 0.000 title claims abstract description 25
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 9
- 230000035939 shock Effects 0.000 claims description 26
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to the technical field of damping devices, in particular to a damping device, one end of a hydraulic cylinder is fixedly connected with a bottom plate, one end of a piston rod is fixedly connected with a piston block which is arranged in the hydraulic cylinder in a sliding manner, a buffer cylinder is sleeved outside one end of the hydraulic cylinder, an annular buffer space is formed between the inner wall of the buffer cylinder and the outer wall of the hydraulic cylinder, a plurality of through holes which are communicated with the annular buffer space are formed in the side wall of one end of the hydraulic cylinder at intervals, a plurality of first elastic pieces and annular pistons are arranged in the annular buffer space, one ends of the first elastic pieces are fixedly connected with the inner top wall of the annular buffer space, the other ends of the first elastic pieces are fixedly connected with the annular pistons, and hydraulic oil in the hydraulic cylinder is compressed into the annular buffer space through the through holes by the piston block so as to push the annular pistons to compress the first elastic pieces. The problem of among the prior art because single spring bears the pressure and easily elastic fatigue damages, directly influences the automobile stability of traveling is solved.
Description
Technical Field
The utility model relates to the technical field of damping devices, in particular to a damping device.
Background
In order to quickly attenuate the vibration of the frame and the vehicle body and improve the smoothness and comfort of the running of the vehicle, a shock absorber is generally arranged on an automobile suspension system.
In the patent document with the prior patent application number 201920122764.6, an automobile shock absorber convenient to maintain is disclosed, and specifically, the automobile shock absorber comprises a shock absorption piston cylinder, a shock absorption piston rod, a shock absorption spring, an upper hinging seat and a lower hinging seat, wherein the shock absorption piston rod is inserted into the bottom of the shock absorption piston cylinder, an upper connecting plate and an upper hinging seat are fixedly connected to the top of the shock absorption piston cylinder, an external thread circular plate is fixedly connected to the bottom of the shock absorption piston rod, a lower connecting plate is fixedly connected to the bottom of the lower hinging seat, the shock absorption spring is sleeved on the outer wall of the shock absorption piston rod, a hoop ring is sleeved at the upper end of the outer wall of the shock absorption piston cylinder, an inner sleeve is connected to the bottom of the hoop ring, an outer sleeve is sleeved on the outer wall of the inner sleeve in a movable mode, an annular groove rail is connected to the bottom of the outer sleeve in a rotating mode, an internal thread connecting ring is fixedly connected to the bottom of the annular groove rail, and the internal thread connecting ring can be fixedly connected with the external thread circular plate in a threaded mode; through the scheme, when the automobile vibrates in the running process, the single damping spring is easy to elastically fatigue and damage due to the fact that the single damping spring bears the pressure, the running stability of the automobile can be directly affected, and the automobile damper is required to be frequently disassembled for maintenance.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, provides a damping device, and solves the problems that in the prior art, a single spring is easy to be damaged due to elastic fatigue caused by bearing pressure, and the running stability of an automobile is directly affected.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
The present utility model provides a shock absorbing device, comprising:
The hydraulic cylinder assembly comprises a bottom plate, a hydraulic cylinder, a piston rod and a piston block, wherein one end of the hydraulic cylinder is fixedly connected with the bottom plate, and one end of the piston rod is fixedly connected with the piston block which is arranged in the hydraulic cylinder in a sliding manner; and
The auxiliary cylinder assembly comprises a buffer cylinder, a first elastic piece and an annular piston, wherein the buffer cylinder is sleeved outside one end of the hydraulic cylinder, an annular buffer space is formed between the inner wall of the buffer cylinder and the outer wall of the hydraulic cylinder, a plurality of through holes communicated with the annular buffer space are formed in the side wall of one end of the hydraulic cylinder at intervals, the first elastic piece and the annular piston are arranged in the annular buffer space, one end of the elastic piece is fixedly connected with the inner top wall of the buffer cavity, the other end of the elastic piece is fixedly connected with the annular piston, and hydraulic oil in the hydraulic cylinder is compressed into the annular buffer space through the through holes by the piston block so as to push the annular piston to compress the first elastic piece.
In an embodiment, the hydraulic cylinder assembly further comprises a top plate, the other end of the piston rod is fixedly connected with the top plate, and the bottom plate and the top plate are respectively provided with a lower hanging ring and an upper hanging ring.
In one embodiment, the hydraulic cylinder further comprises a plurality of buffer assemblies arranged between the bottom plate and the top plate along the circumferential direction of the hydraulic cylinder.
In one embodiment, the buffer assembly comprises a sleeve, a guide rod and a sliding block, wherein the sleeve is fixedly connected with the bottom plate, one end of the guide rod is fixedly connected with the sliding block which is arranged in the sleeve in a sliding manner, and the other end of the guide rod is fixedly connected with the top plate.
In one embodiment, a mounting plate is arranged at the other end of the hydraulic cylinder, and a plurality of guide rods of the buffer assemblies are all arranged in the mounting plate in a sliding manner.
In one embodiment, the guide rod is fixedly provided with a limiting block, the guide rod is sleeved with a second elastic piece, and the second elastic piece is located between the limiting block and the outer top end of the sleeve.
In one embodiment, a third elastic member is further sleeved on the guide rod, and the third elastic member is located between the sliding block and the inner top wall of the sleeve.
In one embodiment, the inner bottom of the sleeve is provided with an elastic cushion block, and the elastic cushion block can be abutted against the sliding block.
In one embodiment, the bottom plate is provided with a liquid dividing block extending into the hydraulic cylinder.
In one embodiment, the hydraulic cylinder, the buffer cylinder and the sleeve are manufactured by processing an aluminum alloy plate, and the bottom plate and the top plate are manufactured by processing a steel plate.
Compared with the prior art, the damping device provided by the utility model has the advantages that one end of the hydraulic cylinder is fixedly connected with the bottom plate, one end of the piston rod is fixedly connected with the piston block which is slidably arranged in the hydraulic cylinder, the buffer cylinder is sleeved outside one end of the hydraulic cylinder, an annular buffer space is formed between the inner wall of the buffer cylinder and the outer wall of the hydraulic cylinder, a plurality of through holes which are communicated with the annular buffer space are formed in the side wall of one end of the hydraulic cylinder at intervals, a plurality of first elastic pieces and the annular piston are arranged in the annular buffer space, one ends of the first elastic pieces are fixedly connected with the inner top wall of the annular buffer space, the other ends of the first elastic pieces are fixedly connected with the annular piston, hydraulic oil in the hydraulic cylinder is compressed into the annular buffer space through the through holes by the piston block so as to push the annular piston to compress the first elastic pieces, the plurality of first elastic pieces are connected in parallel, the length of the damping device is not increased, but the trend of descending of the piston block is effectively shared, the load strength of the damping device is improved, and the service life is long.
Drawings
FIG. 1 is a schematic view of a shock absorbing device according to the present utility model;
FIG. 2 is a cross-sectional view of a shock absorbing device of the present utility model;
fig. 3 is an enlarged schematic view of a in fig. 2.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1 to 3, the present utility model provides a damping device. The damping device can be applied to a damping system of a vehicle, so that the vibration of a frame and a vehicle body can be rapidly damped, the smoothness and the comfort of running of the vehicle are improved, and meanwhile, the service life of the damping device is prolonged.
In this embodiment, the damping device comprises a hydraulic cylinder assembly 1 and an auxiliary cylinder assembly 2, wherein the hydraulic cylinder assembly 1 comprises a bottom plate 11, a hydraulic cylinder 12, a piston rod 13 and a piston block 14, one end of the hydraulic cylinder 12 is fixedly connected with the bottom plate 11, and one end of the piston rod 13 is fixedly connected with the piston block 14 which is slidably arranged in the hydraulic cylinder 12; the auxiliary cylinder assembly comprises a buffer cylinder 21, a first elastic piece 22 and an annular piston 23, wherein the buffer cylinder 21 is sleeved outside one end of the hydraulic cylinder 12, an annular buffer space 20 is formed between the inner wall of the buffer cylinder 21 and the outer wall of the hydraulic cylinder 12, a plurality of through holes 120 communicated with the annular buffer space 20 are formed in the side wall of one end of the hydraulic cylinder 12 at intervals, the first elastic piece 22 and the annular piston 23 are arranged in the annular buffer space 20, one end of the first elastic piece 22 is fixedly connected with the inner top wall of the annular buffer space 20, the other end of the first elastic piece 22 is fixedly connected with the annular piston 23, and hydraulic oil in the hydraulic cylinder 12 is compressed into the annular buffer space 20 through the through holes by the piston block 14 so as to push the annular piston 23 to compress the first elastic piece 22.
In the actual use process, the damping device is installed in the damping system of the vehicle, when the vehicle runs on a hollow road surface, the vehicle can vibrate, at this time, the piston rod 13 can push the piston block 14 to slide in the hydraulic cylinder 12, the piston block 14 presses hydraulic oil in the hydraulic cylinder 12 into the annular buffer space 20 through a plurality of through holes, and the annular piston 23 is pushed to compress a plurality of first elastic pieces 22, so that the trend of descending of the piston block 14 is shared.
On the basis of the above scheme, referring to fig. 1 and 2, the hydraulic cylinder assembly 1 further includes a top plate 15, the other end of the piston rod 13 is fixedly connected with the top plate 15, and the bottom plate 11 and the top plate 15 are respectively provided with a lower suspension ring 111 and an upper suspension ring 151. In the use process, the lower hanging ring 111 and the upper hanging ring 151 can be respectively connected with the vehicle body and the vehicle frame.
On the basis of the above-mentioned scheme, as shown in fig. 1, the hydraulic cylinder further comprises a plurality of buffer assemblies 3 arranged between the bottom plate 11 and the top plate 15 along the circumferential direction of the hydraulic cylinder 12. Specifically, the number of the buffer members 3 is four.
The conventional automobile damper device mainly comprises a damper consisting of a single damper cylinder, and the damper cylinder is not assisted to share the impact load of the main damper cylinder, so that the fatigue of an elastic member in the main damper cylinder is easily caused, and the damper device is damaged.
On the basis of the above-mentioned scheme, please refer to fig. 1, 2 and 3, the buffer assembly 3 includes a sleeve 31, a guide rod 32 and a slider 33, the sleeve 31 is fixedly connected with the bottom plate 11, one end of the guide rod 32 is fixedly connected with the slider 33 slidably disposed in the sleeve 31, and the other end of the guide rod 32 is fixedly connected with the top plate 15.
In this embodiment, referring to fig. 1 and 2, a mounting plate 121 is disposed at the other end of the hydraulic cylinder 12, and the guide rods 32 of the plurality of buffer assemblies 3 are slidably disposed in the mounting plate 121.
On the basis of the above scheme, as shown in fig. 2, a limiting block 321 is fixedly arranged on the guide rod 32, a second elastic member 34 is sleeved on the guide rod 32, and the second elastic member 34 is located between the limiting block 321 and the outer top end of the sleeve 31.
On the basis of the above scheme, as shown in fig. 3, a third elastic member 35 is further sleeved on the guide rod 32, and the third elastic member 35 is located between the sliding block 33 and the inner top wall of the sleeve 31.
On the basis of the above-mentioned scheme, referring to fig. 3, an elastic pad 36 is disposed at the inner bottom of the sleeve 31, and the elastic pad 36 may abut against the slider 33.
Note that, referring to fig. 3, the base plate 11 is provided with a liquid separation block 110 extending into the hydraulic cylinder 12. The outer wall of the liquid separation block 110 is smooth, so that hydraulic oil in the hydraulic cylinder 12 is conveniently guided, and the influence on the side wall of the hydraulic cylinder 12 when the hydraulic oil flows is reduced.
In this embodiment, the hydraulic cylinder 12, the buffer cylinder 21 and the sleeve 31 are manufactured by processing an aluminum alloy plate, and the bottom plate 11 and the top plate 15 are manufactured by processing a steel plate.
The beneficial effects are that:
Compared with the prior art, the damping device provided by the utility model has the advantages that one end of the hydraulic cylinder is fixedly connected with the bottom plate, one end of the piston rod is fixedly connected with the piston block which is slidably arranged in the hydraulic cylinder, the buffer cylinder is sleeved outside one end of the hydraulic cylinder, an annular buffer space is formed between the inner wall of the buffer cylinder and the outer wall of the hydraulic cylinder, a plurality of through holes which are communicated with the annular buffer space are formed in the side wall of one end of the hydraulic cylinder at intervals, a plurality of first elastic pieces and the annular piston are arranged in the annular buffer space, one ends of the first elastic pieces are fixedly connected with the inner top wall of the annular buffer space, the other ends of the first elastic pieces are fixedly connected with the annular piston, hydraulic oil in the hydraulic cylinder is compressed into the annular buffer space through the through holes by the piston block so as to push the annular piston to compress the first elastic pieces, the plurality of first elastic pieces are connected in parallel, the length of the damping device is not increased, but the trend of descending of the piston block is effectively shared, the load strength of the damping device is improved, and the service life is long.
The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.
Claims (10)
1. A shock absorbing device, comprising:
The hydraulic cylinder assembly comprises a bottom plate, a hydraulic cylinder, a piston rod and a piston block, wherein one end of the hydraulic cylinder is fixedly connected with the bottom plate, and one end of the piston rod is fixedly connected with the piston block which is arranged in the hydraulic cylinder in a sliding manner; and
The auxiliary cylinder assembly comprises a buffer cylinder, a first elastic piece and an annular piston, wherein the buffer cylinder is sleeved outside one end of the hydraulic cylinder, an annular buffer space is formed between the inner wall of the buffer cylinder and the outer wall of the hydraulic cylinder, a plurality of through holes communicated with the annular buffer space are formed in the side wall of one end of the hydraulic cylinder at intervals, the first elastic piece and the annular piston are arranged in the annular buffer space, one end of the first elastic piece is fixedly connected with the inner top wall of the annular buffer space, the other end of the first elastic piece is fixedly connected with the annular piston, and hydraulic oil in the hydraulic cylinder is compressed into the annular buffer space through the through holes by the piston block so as to push the annular piston to compress the first elastic piece.
2. The shock absorbing device as defined in claim 1, wherein the hydraulic cylinder assembly further comprises a top plate, the other end of the piston rod is fixedly connected to the top plate, and the bottom plate and the top plate are respectively provided with a lower hanging ring and an upper hanging ring.
3. The shock absorbing device as defined in claim 2, further comprising a plurality of shock absorbing members disposed between the bottom plate and the top plate in a circumferential direction of the hydraulic cylinder.
4. A shock absorbing device as defined in claim 3, wherein the shock absorbing assembly includes a sleeve, a guide rod and a slider, the sleeve being fixedly connected to the base plate, one end of the guide rod being fixedly connected to the slider slidably disposed in the sleeve, and the other end of the guide rod being fixedly connected to the top plate.
5. The damping device according to claim 4, wherein a mounting plate is arranged at the other end of the hydraulic cylinder, and a plurality of guide rods of the damping assemblies are all slidably arranged in the mounting plate.
6. The damping device according to claim 5, wherein the guide rod is fixedly provided with a limiting block, the guide rod is sleeved with a second elastic piece, and the second elastic piece is located between the limiting block and the outer top end of the sleeve.
7. The shock absorbing device as defined in claim 6, wherein the guide rod is further sleeved with a third elastic member, and the third elastic member is located between the slider and the inner top wall of the sleeve.
8. The shock absorbing device as defined in claim 7, wherein the inner bottom of the sleeve is provided with an elastic pad, and the elastic pad is capable of abutting against the slider.
9. A shock absorbing device as claimed in claim 1, wherein the base plate is provided with a liquid dividing block extending into the hydraulic cylinder.
10. The shock absorber of claim 4, wherein said hydraulic cylinder, said cushion cylinder and said sleeve are formed by machining said aluminum alloy plate, and said bottom plate and said top plate are formed by machining said steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322650582.5U CN221033754U (en) | 2023-09-27 | 2023-09-27 | Damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322650582.5U CN221033754U (en) | 2023-09-27 | 2023-09-27 | Damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221033754U true CN221033754U (en) | 2024-05-28 |
Family
ID=91182251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322650582.5U Active CN221033754U (en) | 2023-09-27 | 2023-09-27 | Damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221033754U (en) |
-
2023
- 2023-09-27 CN CN202322650582.5U patent/CN221033754U/en active Active
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