CN207892924U - Double buffering hydraulic cylinder - Google Patents
Double buffering hydraulic cylinder Download PDFInfo
- Publication number
- CN207892924U CN207892924U CN201820303285.XU CN201820303285U CN207892924U CN 207892924 U CN207892924 U CN 207892924U CN 201820303285 U CN201820303285 U CN 201820303285U CN 207892924 U CN207892924 U CN 207892924U
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- Prior art keywords
- piston
- cylinder
- cylinder body
- buffer spring
- limiting plate
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Abstract
The utility model is related to technical field of hydraulic pressure, specifically be double buffering hydraulic cylinder, including cylinder body (1), the cylinder body (1) includes pedestal (2) cylinder barrel (4) being fixedly connected, the double buffering hydraulic cylinder further includes piston (13), piston rod (14) and cylinder cap (15), the cylinder cap (15) is fixed on the end of cylinder body (1), the piston (13) is movably connected in cylinder body (1), and the piston rod (14) passes through cylinder cap (15) to be arranged and is slidably connected with cylinder cap (15)；It is characterized in that, being equipped with the first buffer structure between the interior bottom and piston (13) of the cylinder body (1)；The second buffer structure is equipped between the piston (13) and cylinder cap (15).There is provided one kind prevents piston from clashing and damages double buffering hydraulic cylinder.
Description
Technical field
The utility model is related to technical field of hydraulic pressure, specifically be double buffering hydraulic cylinder.
Background technology
In the prior art, only there is buffer block structure due to general inside hydraulic cylinder, after pressurization, piston motion is very fast
When inside still can moment impact, cause parts depreciation, reduced lifetime, thrashing.
Utility model content
The utility model aims to solve at least one of above-mentioned technical problem.
It prevents piston from clashing technical problem to be solved by the utility model is to provide one kind and damages hydraulic pressure
Oil cylinder.
In order to solve the above technical problems, the double buffering hydraulic cylinder of the utility model, including cylinder body, the cylinder body include fixing
The pedestal and cylinder barrel of connection, the double buffering hydraulic cylinder further include piston, piston rod and cylinder cap, and the cylinder cap is fixed on cylinder body
End, the piston are movably connected in cylinder body, and cylinder body is divided into the first oil pocket and the second oil pocket, the piston rod by the piston
One end is fixedly connected with the piston, and the piston rod passes through cylinder cap to be arranged and is slidably connected with cylinder cap；The interior bottom of the cylinder body with
The first buffer structure is equipped between piston；The second buffer structure is equipped between the piston and cylinder cap.
With the above structure, it has the following advantages that：When interior bottom direction movement of the piston toward cylinder body, the first buffering knot
Structure can play the role of buffering, avoid the interior bottom Fast Collision of piston and cylinder body and damage, when piston is transported toward cylinder cap direction
When dynamic, the second buffer structure can play the role of buffering, avoid piston and cylinder cap Fast Collision and piston is caused to be damaged with cylinder cap
Wound.
On the basis of using above-mentioned technical proposal, there can also be following technical characteristic：
First buffer structure refers to：The first buffer spring is equipped between the interior bottom of the cylinder body and piston, it is described
It is equipped with resigning counterbore on piston and piston rod, one end of first buffer spring and the interior bottom of cylinder body push against, and described the
The other end of one buffer spring is pushed against with the bottom end of resigning counterbore.
The interior bottom centre of the cylinder body is equipped with for limiting the limited post of the first buffer spring, and the limited post is towards piston
Direction extends, and first buffer spring is set on limited post, and the limited post is plugged in resigning counterbore.In this way, limit
The effect of column and resigning counterbore can be such that the first buffer spring position stablizes, and ensure the job stability of the first buffer spring.
Second buffer structure refers to：Limiting plate, the limiting plate are slidably connected on the outer circumference surface of the piston
It is upper that there is oil-through-hole, the limit end face moved towards cylinder base for limiting limiting plate is equipped in the endoporus of the cylinder body, it is described
Limiting plate with limit end face push against, between the limiting plate and cylinder cap be equipped with the second buffer spring, the one of second buffer spring
End is pushed against with cylinder cap, and the other end and the limiting plate of second buffer spring push against.In this way, when piston is moved toward cylinder cap direction
When, piston is resisted with limiting plate, and limiting plate is moved to cylinder cap direction simultaneously with piston, effect of the limiting plate in the second buffer spring
There is down cushioning effect, cause piston to be damaged with cylinder cap to avoid piston and cylinder cap Fast Collision.Have on the limiting plate
There is oil-through-hole, when to ensure limiting plate movement, the circulation of hydraulic oil is normal, ensures that the movement of limiting plate is normal.
The cylinder cap is equipped with the first defining flange towards the side of piston, and the limiting plate is equipped with the second limit towards the side of cylinder cap
Position flange, one end of second buffer spring are clamped with the first defining flange, the other end of second buffer spring and the
Two defining flanges are clamped.In this way, the second buffer spring position can be made to stablize, ensure the job stability of the second buffer spring.
Description of the drawings
Fig. 1 is the sectional view of the one of embodiment of the utility model.
Wherein：
1, cylinder body；2, pedestal；3, cylinder barrel；4, piston；5, piston rod；6, cylinder cap；7, the first buffer spring；8, it is heavy to step down
Hole；9, limited post；10, limiting plate；11, oil-through-hole；12, end face is limited；13, the second buffer spring；14, the first defining flange；
15, the second defining flange；16, the first oil pocket；17, the second oil pocket.
Specific implementation mode
Utility model is described in more detail with reference to the accompanying drawings and detailed description.
The essence that those skilled in the art convey them to work to others skilled in the art is will hereinafter use to lead to
The term being often used describes the utility model concept of the disclosure.However, these utility model concepts can be presented as many differences
Form, thus should not be considered limited to embodiments described herein.These embodiments are provided so that present disclosure more
It is detailed and complete, and its range for including completely is conveyed to those skilled in the art.It must also be noted that these embodiments not phase
Mutually repel.Component, step or element from one embodiment may be assumed that into may be present or uses in another embodiment.Not
In the case of the range for being detached from embodiment of the disclosure, institute can be substituted with diversified alternative and/or equivalent implementations
The specific embodiment for showing and describing.The application is intended to any modification or modification of covering embodiments discussed herein.For this
Obviously alternative embodiment can be put into practice for the technical staff in field using only some aspects in described aspect.Herein
For purposes of illustration, specific number, material and configuration are described in embodiment, however, the technical staff in field is not having
In the case of there are these specific details, alternative embodiment can also be put into practice.In other cases, crowd may be omitted or simplified
Well known feature, so as not to make illustrative embodiment be difficult to understand.In addition, hereinafter contributing to understand illustrative implementation
Example describes various operations successively for multiple discrete operations；However, described sequence is not construed as meaning
These operations are necessarily dependent upon sequence execution.But these operations need not be executed with the sequence presented.
" in some embodiments " hereinafter, the phrases such as " in one embodiment " may or may not refer to identical reality
Apply example.Term " comprising ", " having " and "comprising" are synonymous, unless being provided in other ways in context.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is set
Have ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, can also be electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
Referring to attached drawing 1, in wherein a kind of embodiment, double buffering hydraulic cylinder, including cylinder body 1, the cylinder body 1 include fixing
The pedestal 2 and cylinder barrel 3 of connection, the double buffering hydraulic cylinder further include piston 4, piston rod 5 and cylinder cap 6, and the cylinder cap 6 is fixed on
The end of cylinder body 1, the piston 4 are movably connected in cylinder body 1, and the piston 4 divides cylinder body 1 for the first oil pocket 16 and the second oil
Chamber 17,5 one end of the piston rod are fixedly connected with piston 4, and the piston rod 5 passes through cylinder cap 6 to be arranged and slides company with cylinder cap 6
It connects；It is characterized in that, being equipped with the first buffer structure between the interior bottom and piston 4 of the cylinder body 1；Between the piston 4 and cylinder cap 6
Equipped with the second buffer structure.
When interior bottom direction movement of the piston toward cylinder body, the first buffer structure can play the role of buffering, avoid living
It fills in the interior bottom Fast Collision with cylinder body and damages, when piston is moved toward cylinder cap direction, the second buffer structure can play slow
The effect of punching avoids piston and cylinder cap Fast Collision and piston is caused to be damaged with cylinder cap.
First buffer structure refers to：The first buffer spring 7, institute are equipped between the interior bottom and piston 4 of the cylinder body 1
It states and is equipped with resigning counterbore 8 on piston 4 and piston rod 5, one end of first buffer spring 7 is pushed against with the interior bottom of cylinder body 1,
The other end of first buffer spring 7 is pushed against with the bottom end of resigning counterbore 8.
The interior bottom centre of the cylinder body 1 is equipped with the limited post 9 for limiting the first buffer spring 7,9 court of the limited post
4 direction of piston extends, and first buffer spring 7 is set on limited post 9, and the limited post 9 is plugged in resigning counterbore 8.
In this way, the effect of limited post and resigning counterbore can be such that the first buffer spring position stablizes, ensure the work of the first buffer spring
Stability.
Second buffer structure refers to：Limiting plate 10, the limit are slidably connected on the outer circumference surface of the piston 4
There is oil-through-hole 11 on plate 10, the limit moved towards 1 bottom of cylinder body for limiting limiting plate 10 is equipped in the endoporus of the cylinder body 1
End face 12, the limiting plate 10 are pushed against with limit end face 12, and the second buffer spring 13 is equipped between the limiting plate 10 and cylinder cap 6,
One end of second buffer spring 13 is pushed against with cylinder cap 6, and the other end and the limiting plate 10 of second buffer spring 13 push against.
In this way, when piston is moved toward cylinder cap direction, piston is resisted with limiting plate, and limiting plate is moved to cylinder cap direction simultaneously with piston,
Limiting plate has cushioning effect under the action of the second buffer spring, and piston is caused to avoid piston and cylinder cap Fast Collision
It is damaged with cylinder cap.There is oil-through-hole, when to ensure limiting plate movement, the circulation of hydraulic oil is normal, ensures on the limiting plate
The movement of limiting plate is normal.
The cylinder cap 6 is equipped with the first defining flange 14 towards the side of piston 4, and the side of the limiting plate 10 towards cylinder cap 6 is set
There are the second defining flange 15, one end of second buffer spring 13 to be clamped with the first defining flange 14, second buffering elastic
The other end of spring 13 and the second defining flange 15 are clamped.In this way, the second buffer spring position can be made to stablize, ensure the second buffering
The job stability of spring.
The above is only the preferably feasible implementation example of the utility model, cannot therefore be limitation the utility model
Interest field, it is for those skilled in the art, all to be made with the technical solution of the utility model and technical concept
Other it is various it is corresponding change should all belong within the protection domain of the utility model claims.
Claims (5)
1. double buffering hydraulic cylinder, including cylinder body (1), the cylinder body (1) includes the pedestal (2) being fixedly connected and cylinder barrel (3), described
Double buffering hydraulic cylinder further includes piston (4), piston rod (5) and cylinder cap (6), and the cylinder cap (6) is fixed on the end of cylinder body (1),
The piston (4) is movably connected in cylinder body (1), and cylinder body (1) is divided into the first oil pocket (16) and the second oil pocket by the piston (4)
(17), described piston rod (5) one end is fixedly connected with piston (4), and the piston rod (5) passes through cylinder cap (6) setting and and cylinder cap
(6) it is slidably connected；It is characterized in that, being equipped with the first buffer structure between the interior bottom and piston (4) of the cylinder body (1)；It is described
The second buffer structure is equipped between piston (4) and cylinder cap (6).
2. double buffering hydraulic cylinder according to claim 1, which is characterized in that first buffer structure refers to：The cylinder
It is equipped with the first buffer spring (7) between the interior bottom and piston (4) of body (1), is equipped on the piston (4) and piston rod (5)
Resigning counterbore (8), one end of first buffer spring (7) are pushed against with the interior bottom of cylinder body (1), first buffer spring
(7) bottom end of the other end and resigning counterbore (8) pushes against.
3. double buffering hydraulic cylinder according to claim 2, which is characterized in that the interior bottom centre of the cylinder body (1) is equipped with
Limited post (9) for limiting the first buffer spring (7), the limited post (9) extend towards piston (4) direction, and described first is slow
It rushes spring (7) to be set on limited post (9), the limited post (9) is plugged in resigning counterbore (8).
4. double buffering hydraulic cylinder according to claim 1, which is characterized in that second buffer structure refers to：The work
It fills in and slidably connects limiting plate (10) on the outer circumference surface of (4), there is oil-through-hole (11), the cylinder body on the limiting plate (10)
(1) the limit end face (12) moved towards cylinder body (1) bottom for limiting limiting plate (10), the limiting plate are equipped in endoporus
(10) it is pushed against with limit end face (12), equipped with the second buffer spring (13) between the limiting plate (10) and cylinder cap (6), described second
One end of buffer spring (13) is pushed against with cylinder cap (6), and the other end and the limiting plate (10) of second buffer spring (13) push against.
5. double buffering hydraulic cylinder according to claim 4, which is characterized in that the side of cylinder cap (6) towards the piston (4) is set
There is the first defining flange (14), the limiting plate (10) is equipped with the second defining flange (15) towards the side of cylinder cap (6), and described second
One end of buffer spring (13) is clamped with the first defining flange (14), the other end of second buffer spring (13) and the second limit
Position flange (15) is clamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820303285.XU CN207892924U (en) | 2018-03-05 | 2018-03-05 | Double buffering hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820303285.XU CN207892924U (en) | 2018-03-05 | 2018-03-05 | Double buffering hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207892924U true CN207892924U (en) | 2018-09-21 |
Family
ID=63542413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820303285.XU Active CN207892924U (en) | 2018-03-05 | 2018-03-05 | Double buffering hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207892924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109436286A (en) * | 2018-12-04 | 2019-03-08 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of variation rigidity elastic force release acting device for ram-air turbine |
-
2018
- 2018-03-05 CN CN201820303285.XU patent/CN207892924U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109436286A (en) * | 2018-12-04 | 2019-03-08 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of variation rigidity elastic force release acting device for ram-air turbine |
| CN109436286B (en) * | 2018-12-04 | 2021-09-17 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Variable-rigidity elastic release actuating device for ram air turbine |
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