CN219062300U - Oil pressure buffer - Google Patents
Oil pressure buffer Download PDFInfo
- Publication number
- CN219062300U CN219062300U CN202223574033.6U CN202223574033U CN219062300U CN 219062300 U CN219062300 U CN 219062300U CN 202223574033 U CN202223574033 U CN 202223574033U CN 219062300 U CN219062300 U CN 219062300U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- shaft body
- oil
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003921 oil Substances 0.000 claims abstract description 45
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims 4
- 230000035939 shock Effects 0.000 claims 4
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The application discloses an oil pressure buffer, which comprises an upper pressure pad, an elastic piece, a piston rod, an oil cylinder, a cylinder cover and a variable shaft; the cylinder cover is arranged at the top of the cylinder, the piston is arranged in the cylinder, hydraulic oil is filled between the bottom of the cylinder and the piston, one end of the piston rod penetrates through the cylinder cover to be connected with the piston, the other end of the piston rod is connected with the upper pressing pad, the elastic piece is sleeved outside the piston rod, and the elastic piece is respectively connected with the upper pressing pad and the cylinder cover; one end of the variable shaft is fixed at the bottom of the cylinder cover, the other end of the variable shaft is in contact with the bottom of the cylinder, the piston is provided with a through hole, the variable shaft penetrates through the through hole and comprises a first shaft body and a second shaft body, the first shaft body is located above the second shaft body, the outer diameter of the first shaft body is matched with the through hole, and the outer diameter of the second shaft body is smaller than that of the first shaft body. The purpose of accurately controlling the flow and ensuring the buffering effect is achieved by changing the gap between the variable shaft and the piston; and the mounting position of the variable shaft can improve the stability of the oil buffer.
Description
Technical Field
The application relates to the field of buffer equipment, in particular to an oil pressure buffer.
Background
The hydraulic buffer can reduce vibration and noise in the automatic mechanical operation, convert the kinetic energy generated by the moving object into heat energy and release the heat energy into the atmosphere, and effectively stop the balance of the object in the action.
At present, the leakage flow of hydraulic oil cannot be regulated by the existing oil pressure buffer, the concentricity requirement of the oil cylinder and the piston is high, and the piston is easy to block, so that the operation is unstable.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art, and therefore, the present application proposes an oil pressure buffer.
An oil pressure buffer comprising: the device comprises an upper pressing pad, an elastic piece, a piston rod, an oil cylinder, a cylinder cover and a variable shaft;
the cylinder cover is arranged at the top of the cylinder, the piston is arranged in the cylinder and is positioned below the cylinder cover, hydraulic oil is filled between the bottom of the cylinder and the piston, one end of the piston rod penetrates through the cylinder cover to be connected with the piston, the other end of the piston rod is connected with the upper pressing pad, the elastic piece is sleeved outside the piston rod, one end of the elastic piece is connected with the upper pressing pad, and the other end of the elastic piece is connected with the top of the cylinder cover;
the variable shaft comprises a first shaft body and a second shaft body, the first shaft body is located above the second shaft body, the outer diameter of the first shaft body is matched with the through hole, and the outer diameter of the second shaft body is smaller than the outer diameter of the first shaft body.
Further specifically, in the above technical solution, the hydraulic buffer includes a plurality of variable shafts, and the variable shafts are distributed around the piston rod.
Further specifically, in the above technical solution, a first sealing ring is disposed on the outer periphery of the piston.
Further specifically, in the above technical solution, a second sealing ring is disposed on the outer periphery of the cylinder cover.
Further specifically, in the above technical scheme, one end of the piston rod is fixedly connected with the piston through the first fixing piece.
In the technical scheme, the other end of the piston rod is fixedly connected with the upper pressing pad through the second fixing piece.
More specifically, in the above technical scheme, the oil cylinder is provided with an oiling device.
Further specifically, in the above technical scheme, the oil cylinder is further provided with an oil level indicator, and the oil level indicator is located below the oil injection device and used for observing the oil level.
More specifically, in the above technical solution, the diameter of the second shaft body gradually increases from top to bottom.
Compared with the prior art, the embodiment of the application has the following beneficial effects:
during operation, load strikes the upper pressure pad to on transferring pressure to the piston through the piston rod, the piston moves down, because the second axis body of variable shaft is less than first axis body, forms the clearance between piston and the first axis body after moving down, hydraulic oil upwards flows out through the clearance that piston and second axis body cooperation formed, and the diameter of accessible change second axis body is in order to change the clearance size that variable shaft and piston formed, thereby reaches the effect of control buffering speed.
One end of the variable shaft is fixed on the cylinder cover, the other end of the variable shaft is a free end and is in contact with the bottom of the oil cylinder, so that the stability of the oil pressure buffer is improved, the concentricity requirement of the piston and the oil cylinder is reduced, the piston and the variable shaft are prevented from being clamped, the processing requirement is reduced, and the stable operation of the oil pressure buffer is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in 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 application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of the present application;
FIG. 2 is a schematic illustration of a connection structure of the piston, variable shaft and cylinder head of the present application;
FIG. 3 is a schematic perspective view of the present application;
fig. 4 is a schematic structural diagram of the variable shaft of the present application.
In the figure: 1. a pressing pad is arranged; 2. an elastic member; 3. a piston; 301. a through hole; 4. a piston rod; 5. an oil cylinder; 6. a cylinder cover; 7. a variable shaft; 701. a first shaft body; 702. a second shaft body; 8. a first seal ring; 9. a second seal ring; 10. a first fixing member; 11. a second fixing member; 12. an oiling device; 13. oil level.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be understood that references to orientation descriptions, such as directions of up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical solution.
In addition, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Referring to fig. 1-2, the present application provides an oil buffer, which includes: the upper pressure pad 1, the elastic piece 2, the piston 3, the piston rod 4, the oil cylinder 5, the cylinder cover 6 and the variable shaft 7; the cylinder cover 6 is arranged at the top of the cylinder cover 5, the piston 3 is arranged in the cylinder cover 5 and is positioned below the cylinder cover 6, hydraulic oil is filled between the bottom of the cylinder cover 5 and the piston 3, one end of the piston rod 4 penetrates through the cylinder cover 6 to be connected with the piston 3, the other end of the piston rod 4 is connected with the upper pressing pad 1, the elastic piece 2 is sleeved outside the piston rod 4, one end of the elastic piece 2 is connected with the upper pressing pad 1, the other end of the elastic piece 2 is connected with the top of the cylinder cover 6, and the elastic piece 2 can play a certain buffering role; one end of the variable shaft 7 is fixed at the bottom of the cylinder cover 6, the other end of the variable shaft is in contact with the bottom of the cylinder 5, the piston 3 is provided with a through hole 301, the variable shaft 7 penetrates through the through hole 301, the variable shaft 7 comprises a first shaft body 701 and a second shaft body 702, the first shaft body 701 is located above the second shaft body 702, the outer diameter of the first shaft body 701 is matched with the through hole 301, namely, the outer diameter of the first shaft body 701 is almost identical with the size of the through hole 301, the first shaft body 701 can block the through hole 301 when the variable shaft is not in use, hydraulic oil is prevented from flowing to the upper part of the piston 3, and the outer diameter of the second shaft body 702 is smaller than the outer diameter of the first shaft body 701.
During operation, load impacts the upper pressure pad 1, and transmits pressure to the piston 3 through the piston rod 4, the piston 3 moves downwards, and as the second shaft body 702 of the variable shaft 7 is smaller than the first shaft body 701, a gap is formed between the piston 3 and the first shaft body 701 after moving downwards, hydraulic oil flows upwards through the gap formed by the cooperation of the piston 3 and the second shaft body 702, and the size of the gap formed by the variable shaft 7 and the piston 3 can be changed by changing the diameter of the second shaft body 702, so that the effect of controlling the buffering speed is achieved.
One end of the variable shaft 7 is fixed on the cylinder cover 6, and the other end of the variable shaft belongs to a free end and contacts with the bottom of the cylinder 5, so that the mounting stability of the cylinder cover 6 is improved, and the falling condition of the cylinder cover 6 is reduced; meanwhile, the concentricity requirement of the piston 3 and the oil cylinder 5 is reduced, the piston 3 is prevented from being clamped with the variable shaft 7, the processing requirement is reduced, and the stable operation of the oil pressure buffer is ensured.
As shown in fig. 2, in some embodiments, the hydraulic buffer includes a plurality of variable shafts 7, and the variable shafts 7 are all distributed around the piston rod 4.
Preferably, the variable shafts 7 are uniformly distributed around the piston rod 4, the variable shafts 7 form a ring structure, the stability in the oil cylinder 5 is further improved, and the flow rate of hydraulic oil can be regulated by changing the number of the variable shafts 7.
As shown in fig. 2, in some embodiments, the piston 3 is provided with a first seal ring 8 at its outer periphery, the first seal ring 8 being used to prevent hydraulic oil from flowing from the outer periphery of the piston 3 to the space above the piston 3 to affect the damping effect.
As shown in fig. 2, in some embodiments, a second sealing ring 9 is disposed on the outer periphery of the cylinder cover 6, and the second sealing ring 9 can form a sealed space in the cylinder 5.
As shown in fig. 1, in some embodiments, one end of the piston rod 4 is fixedly connected to the piston 3 through a first fixing member 10, and the connection strength of the piston rod 4 and the piston 3 is improved through the first fixing member 10.
As shown in fig. 1, in some embodiments, the other end of the piston rod 4 is fixedly connected to the upper pressure pad 1 through a second fixing member 11, and the connection strength of the piston rod 4 and the upper pressure pad 1 is improved through the second fixing member 11.
It is understood that the first fixing member 10 and the second fixing member 11 are screws or the like.
As shown in fig. 3, in some embodiments, the oil cylinder 5 is provided with an oil injection device 12, and the oil in the oil cylinder 5 can be timely replenished by the oil injection device 12.
As shown in fig. 3, in some embodiments, the oil cylinder 5 is further provided with an oil level gauge 13, and the oil level gauge 13 is located below the oil filling device 12 for observing the oil level.
As shown in fig. 4, in some embodiments, the diameter of the second shaft body 702 gradually increases from top to bottom, and the diameter of the second shaft body 702 gradually increases from top to bottom, so that a gap with different size is formed between the piston 3, so as to facilitate adjusting the flow rate of hydraulic oil.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (9)
1. An oil pressure buffer, comprising: the device comprises an upper pressing pad, an elastic piece, a piston rod, an oil cylinder, a cylinder cover and a variable shaft;
the cylinder cover is arranged at the top of the cylinder, the piston is arranged in the cylinder and is positioned below the cylinder cover, hydraulic oil is filled between the bottom of the cylinder and the piston, one end of the piston rod penetrates through the cylinder cover to be connected with the piston, the other end of the piston rod is connected with the upper pressing pad, the elastic piece is sleeved outside the piston rod, one end of the elastic piece is connected with the upper pressing pad, and the other end of the elastic piece is connected with the top of the cylinder cover;
the variable shaft comprises a first shaft body and a second shaft body, the first shaft body is located above the second shaft body, the outer diameter of the first shaft body is matched with the through hole, and the outer diameter of the second shaft body is smaller than the outer diameter of the first shaft body.
2. The hydraulic damper according to claim 1, wherein the hydraulic damper includes a plurality of variable shafts, the plurality of variable shafts being distributed around the piston rod.
3. The hydraulic shock absorber according to claim 1, wherein the piston outer periphery is provided with a first seal ring.
4. A hydraulic buffer according to claim 3, wherein the outer periphery of the cylinder head is provided with a second seal ring.
5. The hydraulic shock absorber according to claim 1, wherein one end of the piston rod is fixedly connected to the piston by a first fixing member.
6. The hydraulic shock absorber according to claim 5, wherein the other end of the piston rod is fixedly connected to the upper pressure pad by a second fixing member.
7. The oil pressure buffer according to any one of claims 1-6, wherein an oil injection device is provided on the oil cylinder.
8. The hydraulic buffer according to claim 7, wherein the cylinder is further provided with an oil level gauge located below the oil filling device for observing the oil level.
9. The hydraulic shock absorber according to any of claims 1-6, wherein a diameter of the second shaft body gradually increases from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223574033.6U CN219062300U (en) | 2022-12-30 | 2022-12-30 | Oil pressure buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223574033.6U CN219062300U (en) | 2022-12-30 | 2022-12-30 | Oil pressure buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219062300U true CN219062300U (en) | 2023-05-23 |
Family
ID=86365053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223574033.6U Active CN219062300U (en) | 2022-12-30 | 2022-12-30 | Oil pressure buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219062300U (en) |
-
2022
- 2022-12-30 CN CN202223574033.6U patent/CN219062300U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109798317B (en) | Damping device for agricultural machine based on magnetorheological fluid | |
| CN105156553A (en) | Damper with equivalent rotating inertia mass | |
| CN104675905A (en) | Buffer using magneto-rheological cement gum | |
| CN115163723B (en) | Magneto-rheological variable damping vibration attenuation energy consumption device | |
| CN219062300U (en) | Oil pressure buffer | |
| CN106917840B (en) | Obstructive piston type particle damper | |
| CN203670578U (en) | Constant force viscous damper | |
| CN109162067B (en) | Damping device of washing machine and washing machine | |
| CN109654152A (en) | A kind of big stroke compact type bilayer viscous damper | |
| CN206054611U (en) | A kind of miniature comprehensive damping device | |
| CN205618460U (en) | Hydraulic pressure cone valve of case rear end damping pressure regulating | |
| CN208112406U (en) | Servo motor vibration-proof structure | |
| CN207814079U (en) | A kind of fork truck lifting oil cylinder | |
| CN103991090B (en) | A kind of knuckle type industrial robot compensating cylinder | |
| CN208519107U (en) | A kind of revolving type magnetic rheologic bump leveller of more fluid courses | |
| CN210686828U (en) | Fan shock absorber based on magneto-rheological effect | |
| CN209539895U (en) | A kind of single pole Automatic-resetting buffering device | |
| CN114321263A (en) | Hydraulic vibration damper, air conditioning unit and adjusting method of hydraulic vibration damper | |
| CN112503130A (en) | Magneto-rheological rotary damper | |
| CN2913727Y (en) | Air vibration damper | |
| CN207393831U (en) | Damper, automobile suspension system and automobile | |
| CN209839045U (en) | Damping mechanism for automobile | |
| CN204054079U (en) | A kind of knuckle type industrial robot compensating cylinder | |
| CN110552993A (en) | Fan shock absorber based on magneto-rheological effect | |
| CN106838003B (en) | A kind of Permanent-magnet bearing with pendulum-type film damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A hydraulic buffer Granted publication date: 20230523 Pledgee: Bank of China Limited Foshan Nanhai Xiqiao Sub-branch Pledgor: Guangdong Li'an Elevator Accessories Co.,Ltd. Registration number: Y2024980005204 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |