CN209524033U - A kind of buffering hydraulic cylinder - Google Patents
A kind of buffering hydraulic cylinder Download PDFInfo
- Publication number
- CN209524033U CN209524033U CN201920066877.9U CN201920066877U CN209524033U CN 209524033 U CN209524033 U CN 209524033U CN 201920066877 U CN201920066877 U CN 201920066877U CN 209524033 U CN209524033 U CN 209524033U
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- Prior art keywords
- buffer stopper
- piston
- cylinder
- groove
- limited block
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Abstract
The utility model discloses a kind of buffering hydraulic cylinders, including cylinder bottom, cylinder barrel, cylinder cap, piston and piston rod, the cylinder bottom and cylinder cap are connect with the both ends of cylinder barrel respectively, piston is located in cylinder barrel, and piston rod is connect through cylinder cap with piston, it is characterised in that, the cylinder bottom is equipped with internal the first buffer stopper for cavity, first buffer stopper is additionally provided with oil inlet on cylinder bottom towards piston, and oil inlet is connected to the cavity of the first buffer stopper；Be additionally provided on the piston with the matched groove of the first buffer stopper, and groove, towards the first buffer stopper, the inner wall two sides of groove are equipped with limiting block, and when the first buffer stopper is inserted into groove, limited block is inserted into the cavity of the first buffer stopper.The utility model can be avoided the fierce collision between piston and cylinder bottom, to play a protective role to each element of hydraulic system.
Description
Technical field
The utility model relates to technical field of hydraulic pressure, and in particular to a kind of buffering hydraulic cylinder.
Background technique
Engineering machinery is the general name of the construction machinery for engineering construction.It is widely used in building, water conservancy, electric power, road, mine
The engineering fields such as mountain, harbour and national defence, many kinds of, engineering machinery is the important component of Chinese equipment manufacturing industry.Briefly
It says, synthesis needed for all restoration in earth-rock construction engineerings, pavement construction and maintenance, the operation of flow-type lift and various architectural engineerings
Mechanized equipment, referred to as engineering machinery necessary to property mechanized construction engineering.It is mainly used for national defense construction engineering, communications and transportation
Construction, the construction of the raw and semifinished materials industries such as energy industry construction and production, mine and production, agriculture, forestry, water conservancy construction, industry are built with civilian
It builds, urban construction, the fields such as environmental protection.It is substantially similar to the appellation of this industry in countries in the world, the wherein U.S. and Britain
Referred to as building machinery and equipment, Germany are known as building machinery and device, and Russia is known as building and road building machine, Japan are known as building
If mechanical.It is also referred to as construction implement in our national portioned products, and the sector certification is set up according to State Council in mechanical system
When be referred to as engineering machinery, continue up till now.Various countries are roughly the same to the sector delimitation product scope, China Construction Machinery
Railway project mechanical, fork truck and industrial transportation vehicle, finishing machinery, elevator, pneumatic are also added compared with other various countries
The industries such as tool.
When hydraulic cylinder has used, piston rod pushes piston mobile towards cylinder bottom direction, and piston and cylinder bottom occur in order to prevent
Fierceness collision, hydraulic cylinder is piston slap to be overcome by installing cushion on the cylinder bottom of hydraulic cylinder, however install at present
Cushion is usually rubber pad, and since rubber pad is there are the disadvantages of easy to aging, impact resistance is weak, such hydraulic cylinder is being used
When piston be easy collide cylinder bottom, generate vibration, influence hydraulic cylinder operation stability, therefore improve hydraulic cylinder damping effect
Fruit becomes urgent problem to be solved.
Utility model content
Technical problem to be solved in the utility model is to overcome deficiency in the prior art, and it is an object of the present invention to provide a kind of slow
Fliud flushing cylinder pressure can reduce the collision dynamics between piston and cylinder bottom, improve the service life of Hydraulic Elements.
The utility model is achieved through the following technical solutions:
A kind of buffering hydraulic cylinder, including cylinder bottom, cylinder barrel, cylinder cap, piston and piston rod, the cylinder bottom and cylinder cap respectively with
The both ends of cylinder barrel connect, and piston is located in cylinder barrel, and piston rod is connect through cylinder cap with piston, which is characterized in that on the cylinder bottom
Equipped with it is internal be cavity the first buffer stopper, the first buffer stopper is additionally provided with oil inlet towards piston on cylinder bottom, and oil inlet with
The cavity of first buffer stopper is connected to；Be additionally provided on the piston with the matched groove of the first buffer stopper, and groove is towards first
The inner wall two sides of buffer stopper, groove are equipped with limited block, and when the first buffer stopper is inserted into groove, limited block is inserted into
To the cavity of the first buffer stopper.
Further, the inner wall two sides of the groove, which are equipped with, is located at placement with the matched placing groove of limited block, limited block
In slot, and limited block can move in placing groove.
Further, the second elastic component is equipped in the placing groove, one end of the second elastic component and the interior bottom of groove connect
It connects, the other end is connect with limited block.
Further, several and matched oil return opening of limited block, oil return opening are additionally provided on the outer wall of first buffer stopper
It is evenly distributed on four side walls of the first buffer stopper, and limited block can enter to the first buffer stopper by oil return opening
In cavity.
Further, first buffer stopper towards the end of groove direction be conical structure.
Further, third elastic component is additionally provided on the interior bottom of the groove.
Further, several second buffer stoppers are additionally provided on the piston, the second buffer stopper is towards cylinder bottom, on the cylinder bottom
It is additionally provided with quantity the first dashpot identical with the second buffering number of blocks, the second buffer stopper is inserted into the first dashpot,
The first elastic component is equipped in first dashpot.
Further, the 4th elastic component is additionally provided on the piston rod, the 4th elastic component covers on the piston rod, and the 4th
Elastic component is located in cylinder barrel, and the second dashpot is additionally provided on the cylinder cap, and the 4th elastic component can extend into the second buffering
In slot.
The utility model compared with prior art, has the following advantages and benefits:
1, a kind of buffering hydraulic cylinder of the utility model, piston towards cylinder bottom direction close to when, the first buffer stopper of setting
It forces two limited blocks to compress the second elastic component, the first buffer stopper is smoothly inserted into groove, when limited block is mobile
When at the oil return opening on to the first buffer stopper, under the action of the second elastic component, limited block is inserted into the sky of the first buffer stopper
It is intracavitary, a part of oil return opening on the first buffer stopper is blocked using limited block, thus reduce oil pressure oil in cylinder barrel from
The oil mass of oil inlet discharge, and then the piston speed mobile towards cylinder bottom is reduced, reduce the collision between piston and cylinder bottom
Dynamics；
2, a kind of buffering hydraulic cylinder of the utility model, when piston is close to cylinder bottom, the second buffer stopper of setting is inserted into
In one dashpot, under the action of the first elastic component, certain buffer function can be played to piston, further decreases piston and cylinder
Collision dynamics between bottom；
3, a kind of buffering hydraulic cylinder of the utility model, when piston is close to cylinder cap, the 4th elastic component on piston rod cooperation the
Two dashpots can reduce the collision dynamics between piston and cylinder cap, further improve the damping effect of hydraulic system.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is structural schematic diagram when the utility model is used；
Fig. 3 is the structural schematic diagram of the first buffer stopper of the utility model.
Label and corresponding parts title in attached drawing:
1 cylinder bottom, the first buffer stopper of 2-, 3- limited block, 4- cylinder barrel, 5- piston rod, 6- oil inlet, the first elastic component of 7-, 8-
Second buffer stopper, the second elastic component of 9-, 10- third elastic component, the 4th elastic component of 11-, the second dashpot of 12-, 13- oil return opening.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Figure 1 to Figure 3, a kind of buffering hydraulic cylinder of the utility model, including cylinder bottom 1, cylinder barrel 4, cylinder cap 15, piston
15 and piston rod 5, the cylinder bottom 1 and cylinder cap 15 are located at the both ends of cylinder barrel 4, and the piston 15 is located in cylinder barrel 4, piston
Bar 5 is interspersed on cylinder cap 15, and is connect with piston 14, and the first buffer stopper 2,2 court of the first buffer stopper are additionally provided on the cylinder cap 1
To piston 14, first buffer stopper 2 is rectangular configuration, is cavity structure, first buffer stopper 4 inside the first buffer stopper 2
Outer circumferential walls on be evenly provided with four oil return openings 13, four oil return openings 13 along the first buffer stopper 4 circumferential arrangement, and
Oil return opening 13 is connected to the cavity of the first buffer stopper 4, and oil inlet 6, the oil inlet 6 and first are additionally provided on the cylinder bottom 1
The cavity of buffer stopper 4 is connected to, so that hydraulic oil is entered in the first buffer stopper 4 by oil inlet 6, then passes through the first buffer stopper 4
On oil return opening 13 enter in cylinder barrel 4；
Groove is additionally provided on the piston 14, groove works as piston 14 towards 1 direction of cylinder bottom towards the first buffer stopper 2
When mobile, the first buffer stopper 2 is inserted into groove, is additionally provided with third elastic component 10 on the interior bottom of the groove, and described the
Three elastic components 10 are spring, and when the first buffer stopper 2 is inserted into groove, the third elastic component 10 of setting can be buffered to first
Block 2 generates certain elasticity, to reduce the speed mobile towards 1 direction of cylinder bottom of piston 14, and then rises to piston 14 certain
Buffer function；
The inner wall two sides of the groove are equipped with placing groove, and the second elastic component 9, the second elastic component 9 are equipped in placing groove
It also is spring, the interior bottom of 9 one end of the second elastic component and placing groove connects, and the other end is equipped with limited block 3, and the limited block 3 is
With the matched rectangular configuration of oil return opening 13, and limited block 3 is inserted into oil return opening 13, and oil return opening 13 is blocked,
So that hydraulic oil can not be entered in the cavity of the first buffer stopper 2 by the oil return opening 13, it is additionally provided with inclined-plane on the limited block,
Towards the first buffer stopper 2, the elastic force that the second elastic component 9 generates can push limited block 3 to be located in groove on inclined-plane, and described first is slow
Rush block 3 towards the end of groove direction be conical structure, when so that piston 14 is mobile towards 1 direction of cylinder bottom, the first buffer stopper 2
Conical structure can act on the inclined-plane of limited block 3, will so that the first buffer stopper 2 is easily inserted between two limited blocks 3
The indentation of limited block 3 is in placing groove, guaranteeing that the first buffer stopper 2 can be smoothly inserted into groove, and limited block 3 can be with the
One buffer stopper 2 contact so that piston towards cylinder bottom direction close to when, limited block 3 can effectively stop the oil return opening of oil return opening
Diameter reduces the oil mass that the hydraulic oil in cylinder barrel 4 is discharged from the first buffer stopper 2, and then reduces the movement speed of piston 14, from
And reduce the collision dynamics between piston 14 and cylinder bottom 1, when the limited block 3 on piston 14 is moved on the first buffer stopper 2
When at oil return opening 13, under the action of the second elastic component 9, by the indentation to the oil return opening 13 of the first buffer stopper 2 of limited block 3, make
Piston is obtained when mobile towards cylinder bottom direction, piston 14 can be fixed on the first buffer stopper 2 by limited block 3, avoid deactivation
Fierce collision between plug and cylinder bottom.
It is additionally provided with several second buffer stoppers 8 on the piston 14, the second buffer stopper 8 is towards cylinder bottom 1, on the cylinder bottom 1 also
Equipped with quantity the first dashpot identical with 8 quantity of the second buffer stopper, it is equipped with the first bolster 7 in the first dashpot, works as piston
14 towards 1 direction of cylinder bottom close to when, the second buffer stopper 8 of setting is inserted into the first dashpot, in the first elastic component 7
Under the action of, certain buffer function can be played to the second buffer stopper 8, further increase the buffering effect to piston 14.
On the piston rod 5 or the 4th elastic component 11, the 4th 11 sets of elastic component is on piston rod 5, on the cylinder cap 15
It is additionally provided with the second dashpot, and the second dashpot the 4th elastic component 11 of direction, when piston 14 is mobile towards 15 direction of cylinder cap,
4th elastic component 11 is able to enter to the second dashpot, can reduce the collision dynamics between the 4th elastic component 1 and cylinder cap 15.
When utility model works, when the piston rod 5 of stretching needs to bounce back in cylinder barrel 4, the hydraulic oil in cylinder barrel 4 is logical
It crosses the oil return opening being arranged on the first buffer stopper 2 and flows into oil inlet 6, the hydraulic oil in cylinder barrel 4 is discharged, it is hydraulic in cylinder barrel 4
When reducing, the pressure in cylinder barrel is reduced oil, and the second elastic component 9 is stretched out out of placing groove under the action of the second elastic component 9,
In groove, when piston 14 is close to the first buffer stopper 2, the first buffer stopper 2 is inserted between two limited blocks 3, so that limit
Position block 3 is fitted on the outer wall of the first buffer stopper 2, and as piston 14 is gradually close with cylinder bottom 1, limited block 3 is gradually to oil return opening
13 are blocked, and are reduced hydraulic oil and are passed through the bore of oil return opening 13, so that the flow that hydraulic oil is discharged in cylinder barrel 4 is reduced, into
And the movement speed of piston is reduced, and when limited block 3 is inserted into oil return opening 13, piston can be fixed on to first and delayed
It rushes on block 2, avoids the collision between piston 14 and cylinder bottom 1；When it is desired to be used, hydraulic oil enters to the by oil inlet 6
In the cavity of one buffer stopper 2, hydraulic oil squeezes limited block 3 so that limited block 3 is retracted in placing groove, hydraulic oil enter back into
In cylinder barrel, pushes piston 14 mobile, piston rod 5 is worked normally.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of buffering hydraulic cylinder, including cylinder bottom (1), cylinder barrel (4), cylinder cap (15), piston (14) and piston rod (5), described
Cylinder bottom (1) and cylinder cap (15) are connect with the both ends of cylinder barrel (4) respectively, and piston (14) is located in cylinder barrel (4), and piston rod (5) runs through
Cylinder cap (15) is connect with piston (14), which is characterized in that and the cylinder bottom (1) is equipped with internal the first buffer stopper (2) for cavity,
First buffer stopper (2) is additionally provided with oil inlet (6) towards piston (14) on cylinder bottom (1), and oil inlet (6) and the first buffer stopper
(2) cavity connection；Be additionally provided on the piston (14) with the first buffer stopper (2) matched groove, and groove is towards first
Buffer stopper (2), the inner wall two sides of groove are equipped with limited block (3), when the first buffer stopper (2) is inserted into groove, limited block
(3) it is inserted into the cavity of the first buffer stopper (2).
2. a kind of buffering hydraulic cylinder according to claim 1, which is characterized in that the inner wall two sides of the groove be equipped with
Limited block (3) matched placing groove, limited block (3) are located in placing groove, and limited block (3) can move in placing groove.
3. a kind of buffering hydraulic cylinder according to claim 2, which is characterized in that be equipped with the second elasticity in the placing groove
Part (9), one end of the second elastic component (9) and the interior bottom of groove connect, and the other end is connect with limited block (3).
4. a kind of buffering hydraulic cylinder according to claim 1, which is characterized in that on the outer wall of first buffer stopper (2)
It is additionally provided with several and limited block (3) matched oil return opening (13), oil return opening (13) is distributed in four side walls of the first buffer stopper (2)
On, and limited block (3) can be entered in the cavity of the first buffer stopper (2) by oil return opening (13).
5. a kind of buffering hydraulic cylinder according to claim 1, which is characterized in that first buffer stopper (2) is towards groove
The end in direction is conical structure.
6. a kind of buffering hydraulic cylinder according to claim 1, which is characterized in that be additionally provided with third on the interior bottom of the groove
Elastic component (10).
7. a kind of buffering hydraulic cylinder according to claim 1, which is characterized in that be additionally provided with several on the piston (14)
Two buffer stoppers (8), the second buffer stopper (8) are additionally provided with quantity and the second buffer stopper (8) number towards cylinder bottom (1) on the cylinder bottom (1)
Identical first dashpot is measured, the second buffer stopper (8) is inserted into the first dashpot, is equipped with first in the first dashpot
Elastic component (7).
8. a kind of buffering hydraulic cylinder according to claim 1, which is characterized in that be additionally provided with the 4th on the piston rod (5)
Elastic component (11), the 4th elastic component (11) cover on piston rod (5), and the 4th elastic component (11) is located in cylinder barrel (4), described
It is additionally provided on cylinder cap (15) the second dashpot (12), the 4th elastic component (11) can extend into the second dashpot (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920066877.9U CN209524033U (en) | 2019-01-15 | 2019-01-15 | A kind of buffering hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920066877.9U CN209524033U (en) | 2019-01-15 | 2019-01-15 | A kind of buffering hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209524033U true CN209524033U (en) | 2019-10-22 |
Family
ID=68229105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920066877.9U Expired - Fee Related CN209524033U (en) | 2019-01-15 | 2019-01-15 | A kind of buffering hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209524033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111746791A (en) * | 2020-06-12 | 2020-10-09 | 陕西飞机工业（集团）有限公司 | Aircraft load release device |
| CN111946769A (en) * | 2020-08-21 | 2020-11-17 | 安徽斯瓦克汽车配件有限公司 | Hydraulic buffer for automobile |
-
2019
- 2019-01-15 CN CN201920066877.9U patent/CN209524033U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111746791A (en) * | 2020-06-12 | 2020-10-09 | 陕西飞机工业（集团）有限公司 | Aircraft load release device |
| CN111946769A (en) * | 2020-08-21 | 2020-11-17 | 安徽斯瓦克汽车配件有限公司 | Hydraulic buffer for automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191022 Termination date: 20210115 |