CN109162989A - Returning buffering device - Google Patents
Returning buffering device Download PDFInfo
- Publication number
- CN109162989A CN109162989A CN201811159588.XA CN201811159588A CN109162989A CN 109162989 A CN109162989 A CN 109162989A CN 201811159588 A CN201811159588 A CN 201811159588A CN 109162989 A CN109162989 A CN 109162989A
- Authority
- CN
- China
- Prior art keywords
- dsah
- pot
- buffering device
- wall
- piston
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/227—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having an auxiliary cushioning piston within the main piston or the cylinder end face
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of returning buffering devices, belong to technical field of hydraulic.The returning buffering device includes: dsah-pot, buffering end cap and damper piston, one end of the dsah-pot is equipped with the buffering end cap, the damper piston is inserted into the dsah-pot, the outer wall of the damper piston and the inner wall of the dsah-pot are slidably matched, the side wall of the dsah-pot is equipped at least one discharge orifice, and one end of outer wall of the aperture of discharge orifice from the one end for the inner wall for being located at the dsah-pot to the dsah-pot is gradually reduced.Damage the invention can avoid piston by disintegrating slag and grit.
Description
Technical field
The present invention relates to technical field of hydraulic, in particular to a kind of returning buffering device.
Background technique
Returning buffering device is the important component in piston reciprocating mechanism.It is commonly used for as in piston reciprocating mechanism
Piston carry out hydraulic braking, slow down buffer power when backward stroke of the piston, prevent piston from being hit.
Current returning buffering device includes dsah-pot and piston, and dsah-pot one end is equipped with end cap, and end cap is equipped with aerial drainage
Hole, piston are inserted from the dsah-pot other end to dsah-pot.Existing returning buffering device utilizes in dsah-pot not from discharge orifice
In the impact force of the fluid that drains when slowing down backward stroke of the piston, to protect piston.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
It is collided since piston can issue in reciprocatory movement with dsah-pot and end cap unavoidably, causes to generate in dsah-pot
The disintegrating slag of piston, dsah-pot or end cap, while there is also grit in water, and the disintegrating slag and grit are easily detected by setting and are holding
The discharge orifice discharge covered.And piston in motion process can be caused to damage after disintegrating slag and grit accumulation are excessive.
Summary of the invention
The embodiment of the invention provides a kind of returning buffering devices, are avoided that damage of the piston by disintegrating slag and grit.Institute
It is as follows to state technical solution:
The embodiment of the invention provides a kind of returning buffering device, the returning buffering device includes: dsah-pot, buffering end
One end of lid and damper piston, the dsah-pot is equipped with the buffering end cap, and the damper piston is inserted into the dsah-pot,
The outer wall of the damper piston and the inner wall of the dsah-pot are slidably matched, and the side wall of the dsah-pot is let out equipped at least one
Discharge orifice, one end of outer wall of the aperture of the discharge orifice from the one end for the inner wall for being located at the dsah-pot to the dsah-pot is gradually
Reduce.
In an implementation of the embodiment of the present invention, the returning buffering device further includes the first permanent magnet, described
First permanent magnet is located at close to the side of the buffering end cap in the dsah-pot, and the damper piston is hardware.
In another implementation of the embodiment of the present invention, the damper piston is towards one end of first permanent magnet
End face be equipped with the second permanent magnet.
In another implementation of the embodiment of the present invention, the returning buffering device further includes insulating bushing, described
Insulating bushing is inserted into the dsah-pot and between the dsah-pot and the damper piston.
In another implementation of the embodiment of the present invention, the inner wall of the insulating bushing is equipped with inward flange, described
First permanent magnet has coaxially connected fixed part and sticking department, and the fixed position is in the buffering end cap and the inward flange
Between, the inward flange is between the dsah-pot and the sticking department.
In another implementation of the embodiment of the present invention, the damper piston has piston boit, the piston boit
Diameter is not less than the internal diameter of the inward flange, and the axial length of the sticking department is not more than the axial length of the inward flange.
In another implementation of the embodiment of the present invention, the conical surface is provided on the inner wall of the insulating bushing, it is described
The outer wall of piston boit is slidably matched with the conical surface, and the internal diameter of the conical surface is by one end far from the inward flange to close institute
The one end for stating inward flange is gradually reduced.
In another implementation of the embodiment of the present invention, the piston rod of the damper piston is equipped with annular protrusion,
The outer diameter of the annular protrusion is not less than the outer diameter of the dsah-pot, the end of the one end of the dsah-pot far from the buffering end cap
Face and the annular protrusion are towards being equipped with loop buffer pad on the end face of the dsah-pot.
In another implementation of the embodiment of the present invention, the loop buffer pad and the annular protrusion and described slow
Cylinder is rushed to be detachably connected.
In another implementation of the embodiment of the present invention, the loop buffer pad and the buffering end cap are equipped with rubber
Blob of viscose.
Technical solution provided in an embodiment of the present invention has the benefit that
The embodiment of the present invention limits the aperture of discharge orifice from positioned at dsah-pot by the way that discharge orifice is arranged on dsah-pot
One end of outer wall of one end of inner wall to dsah-pot is gradually reduced.So that generated in damper piston reciprocatory movement
Disintegrating slag enters in discharge orifice, without being adhered to inner wall and the damper piston phase mutual friction in motion process of dsah-pot, to slow
Piston is rushed to cause to damage.Discharge orifice is arranged on the inner wall of dsah-pot in the embodiment of the present invention simultaneously, when usual due to disintegrating slag
When being generated in damper piston motion process, therefore the inner wall that dsah-pot is arranged in discharge orifice being more conducive to damper piston movement
The disintegrating slag of generation rapidly enters discharge orifice, prevents disintegrating slag from failing to quickly clean and cause to damage to damper piston.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of returning buffering device provided in an embodiment of the present invention；
Fig. 2 is a kind of side view of returning buffering device provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of discharge orifice provided in an embodiment of the present invention.
Each symbol indicates that meaning is as follows in figure:
1- dsah-pot, 10- discharge orifice, 2- buffer end cap, 3- damper piston, the second permanent magnet of 30-, 31- piston boit, 32-
Annular protrusion, the first permanent magnet of 4-, 41- fixed part, 42- sticking department, 5- insulating bushing, 51- inward flange, 6- loop buffer pad,
7- adjustment pad, 8- rubber block.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is a kind of structural schematic diagram of returning buffering device provided in an embodiment of the present invention.As shown in Figure 1, the backhaul
Buffer unit includes: dsah-pot 1, buffering end cap 2 and damper piston 3, and one end of dsah-pot 1 is equipped with buffering end cap 2, damper piston
3 are inserted into dsah-pot 1, and the inner wall of the outer wall and dsah-pot 1 of damper piston 3 is slidably matched, and the side wall of dsah-pot 1 is equipped with extremely
A few discharge orifice 10, one end of outer wall of the aperture of discharge orifice 10 from the one end for the inner wall for being located at dsah-pot 1 to dsah-pot 1 by
It is decrescence small.
Fig. 2 is a kind of side view of returning buffering device provided in an embodiment of the present invention.As shown in Fig. 2, discharge orifice 10
Interior walls be smooth transition.The interior walls be smooth transition that discharge orifice 10 is arranged in order to smooth fluid can be released out of dsah-pot 1, be made
It is unimpeded to obtain water flow in dsah-pot 1.
In embodiments of the present invention, the discharge orifice 10 that aperture is gradually reduced can be tapered (as shown in Figure 2).Tapered
Discharge orifice 10 had both met the requirement that aperture gradually changed or met smooth transition, can the good demand for loading disintegrating slag.
In other embodiments of the invention, the discharge orifice 10 that aperture is gradually reduced can also be in arc-shaped (such as Fig. 3 institute
Show).In the discharge orifice 10 of arc-shaped there is bigger accommodation space compared with tapered discharge orifice 10, therefore can load more
More disintegrating slags is easy to use.
The embodiment of the present invention limits the aperture of discharge orifice from positioned at dsah-pot by the way that discharge orifice is arranged on dsah-pot
One end of outer wall of one end of inner wall to dsah-pot is gradually reduced.So that generated in damper piston reciprocatory movement
Disintegrating slag enters in discharge orifice, without being adhered to inner wall and the damper piston phase mutual friction in motion process of dsah-pot, to slow
Piston is rushed to cause to damage.Discharge orifice is arranged on the inner wall of dsah-pot in the embodiment of the present invention simultaneously, when usual due to disintegrating slag
When being generated in damper piston motion process, therefore the inner wall that dsah-pot is arranged in discharge orifice being more conducive to damper piston movement
The disintegrating slag of generation rapidly enters discharge orifice, prevents disintegrating slag from failing to quickly clean and cause to damage to damper piston.
As shown in Figure 1, returning buffering device further includes the first permanent magnet 4, the first permanent magnet 4 is located at close in dsah-pot 1
The side of end cap 2 is buffered, damper piston 3 is hardware.By the way that the first permanent magnet 4 is arranged in dsah-pot 1, and use gold
Belong to the damper piston 3 of structural member, so that the first permanent magnet 4 generates attraction to damper piston 3.In damper piston 3 in backhaul
Cheng Zhong makes buffering live can not still return to initial position after if damper piston 3 is unpowered by the attraction of the first permanent magnet 4
Plug 3 is mobile to the buffering end cap 2 and stops in the initial position of damper piston 3.In embodiments of the present invention, the first permanent magnet
4 positions to offset with damper piston 3 are the initial position of damper piston 3, and there is no need to other limiting devices auxiliary buffering is arranged
The positioning of piston 3, so that the more lightweight of returning buffering device.
Optionally, the end face of damper piston 3 towards one end of the first permanent magnet 4 is equipped with the second permanent magnet 30.It is buffering
Second permanent magnet 30 is set on piston 3, so that the mutual attractive force of damper piston 3 and the first permanent magnet 4 is stronger.Therefore by the
The attraction of one permanent magnet 4 and the second permanent magnet 30 can make damper piston 3 rapidly mobile to the buffering end cap 2 and return
To initial position.Improve the reliability of the first permanent magnet 4.
As shown in Figure 1, returning buffering device further includes insulating bushing 5, insulating bushing 5 is inserted into dsah-pot 1 and is located at
Between dsah-pot 1 and damper piston 3.Dsah-pot 1 and damper piston 3 can be completely cut off by the way that insulating bushing 5 is arranged, dsah-pot 1 and the
It is directly contacted between one permanent magnet 4, avoids the formation of electrochemical corrosion, improve the safety of returning buffering device.
Wherein, insulating bushing 5 can be made of materials such as epoxy resin.Epoxy resin has good resistance to corrosion
And have the characteristics that water resistant, anti-leakage are good, intensity is high.Therefore using the use of insulating bushing 5 made of the materials such as epoxy resin
Longer life expectancy is replaced without frequent maintenance.
As shown in Figure 1, the inner wall of insulating bushing 5 is equipped with inward flange 51, the first permanent magnet 4 has coaxially connected fixation
Portion 41 and sticking department 42, fixed part 41 are located between buffering end cap 2 and inward flange 51, and inward flange 51 is located at dsah-pot 1 and locking
Between portion 42.Wherein the internal diameter of inward flange 51 is less than the outer diameter of the fixed part 41, so that fixed part 41 is limited in dsah-pot 1
It is interior, prevent the first permanent magnet 4 from sliding out of dsah-pot 1.In embodiments of the present invention, sticking department 42 coaxially connects with fixed part 41
It connects, therefore sticking department 42 is also limited in dsah-pot 1 with fixed part 41.Setting sticking department 42 is located at inward flange 51, just
In making sticking department 42 closer to damper piston 3, to facilitate sticking department 42 to attract damper piston 3.
As shown in Figure 1, damper piston 3 has piston boit 31, the diameter of piston boit 31 is not less than the internal diameter of inward flange 51, lock
The axial length for determining portion 42 is not more than the axial length of inward flange 51.In the embodiment of the present invention, the diameter of piston boit 31 is set not
Less than the internal diameter of inward flange 51, so that when piston boit 31 is offseted by inward flange 51 with piston boit 31 after entering dsah-pot 1, from
And limit piston boit 31 and continue to the direction movement for buffering end cap 2, damper piston 3 is limited in initial position to realize.Together
When, the axial length of sticking department 42 is not more than the axial length of inward flange 51, so that piston boit 31 will not be rushed because of damper piston 3
It is excessive and pass through inward flange 51 to hit power, the sticking department 42 for being located at inward flange 51 is caused to impact, plays first permanent magnet 4 of protection
Effect.
Optionally, the conical surface is provided on the inner wall of insulating bushing 5, outer wall and the conical surface of piston boit 31 are slidably matched, and bore
The internal diameter in face is gradually reduced by one end far from inward flange 51 to one end close to inward flange 51.The internal diameter of the conical surface is set by separate
One end of inward flange 51 to one end close to inward flange 51 is gradually reduced, so that piston boit 31 was subject to closer to buffering end cap 2
Resistance is bigger, and 3 pairs of buffering end caps 2 of damper piston and the first permanent magnet 4 is avoided to cause biggish impact injury, improves returning buffering
The safety of device.
As shown in Figure 1, the piston rod of damper piston 3 is equipped with annular protrusion 32, the outer diameter of annular protrusion 32 is not less than slow
Rush the outer diameter of cylinder 1, the end face of the one end of dsah-pot 1 far from buffering end cap 2 and annular protrusion 33 towards on the end face of dsah-pot 1
Equipped with loop buffer pad 6.It is used to alleviate the impact force between dsah-pot 1 and damper piston 3 by setting loop buffer pad 6, rise
The effect of protection dsah-pot 1 and damper piston 3 is arrived.
Optionally, loop buffer pad 6 is detachably connected with annular protrusion 32 and dsah-pot 1.In embodiments of the present invention, ring
Shape cushion 6 is fixed on annular protrusion 32 and dsah-pot 1 by bolt or screw.This kind of connection type is easy to disassemble, convenient
Installation.It is wherein circumferentially arranged in equal spacing on loop buffer pad 6 multiple counterbores (as shown in Figure 1), the counterbore is for installing bolt
Or screw, keep the surface of loop buffer pad 6 more smooth, when annular protrusion 32 and dsah-pot 1 being avoided mutually to collide, for fixing
Bolt or screw directly bump against and impacted.
In embodiments of the present invention, returning buffering device can also include adjustment pad 7, and it is slow that adjustment pad 7 is located at annular
It rushes between pad 6 and dsah-pot 1 (referring to Fig. 1).Wherein adjustment pad 7 is fixed by bolt or screw together with loop buffer pad 6
On the end face of dsah-pot 1.Adjustment pad 7 is set on dsah-pot 1 and eventually stops at dsah-pot 1 for adjusting damper piston 3
Interior position, i.e., for accurately adjustment damper piston 3 to initial position.
As shown in Figure 1, loop buffer pad 6 and buffering end cap 2 are equipped with rubber block 8.Rubber block is set on buffering end cap 2
8 are used to support the first permanent magnet 4, and alleviate the impact force that the first permanent magnet 4 is subject to, and prevent the first permanent magnet 4 and buffering end
Lid 2 is hit, and improves safety.Rubber block 8 is set on loop buffer pad 6 and alleviates dsah-pot 1 and buffering for further buffering
Impact force between piston 3 prevents dsah-pot 1 and damper piston 3 from occurring hitting strongly, protects dsah-pot 1 and damper piston 3.
Wherein rubber block 8 can be fastened on loop buffer pad 6 and buffering end cap 2 using rubber vulcanization process.
In some embodiments of the invention, rubber block 8 can be round table-like or prism-frustum-shaped, round table-like or prism-frustum-shaped ruler
Very little biggish one end setting is padded in 6 counterbores in loop buffer, and round table-like or prism-frustum-shaped lesser one end of size then protrudes from ring
Shape cushion 6, and the size of round table-like or prism-frustum-shaped larger-size one end is greater than the ruler of the counterbore of loop buffer pad 6
It is very little, the frictional force between rubber block 8 and the counterbore of loop buffer pad 6 can be increased in this way, rubber block 8 is prevented to be detached from easily.Its
In, successively alternate intervals are arranged in counterbore for rubber block and bolt.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of returning buffering device, the returning buffering device includes: dsah-pot (1), buffering end cap (2) and damper piston
(3), one end of the dsah-pot (1) is equipped with the buffering end cap (2), and the damper piston (3) is inserted into the dsah-pot (1)
Interior, the inner wall of the outer wall and the dsah-pot (1) of the damper piston (3) is slidably matched, which is characterized in that the dsah-pot
(1) side wall is equipped at least one discharge orifice (10), and the aperture of the discharge orifice (10) is from positioned at the interior of the dsah-pot (1)
One end of outer wall of one end of wall to the dsah-pot (1) is gradually reduced.
2. returning buffering device according to claim 1, which is characterized in that the returning buffering device further includes first forever
Magnet (4), first permanent magnet (4) is located in the dsah-pot (1) close to the side of buffering end cap (2), described slow
Rushing piston (3) is hardware.
3. returning buffering device according to claim 2, which is characterized in that the damper piston (3) is towards described first
The end face of one end of permanent magnet (4) is equipped with the second permanent magnet (30).
4. returning buffering device according to claim 2 or 3, which is characterized in that the returning buffering device further includes exhausted
Edge bushing (5), the insulating bushing (5) is inserted into the dsah-pot (1) and is located at the dsah-pot (1) and the buffering is lived
It fills between (3).
5. returning buffering device according to claim 4, which is characterized in that the inner wall of the insulating bushing (5) is equipped with
Inward flange (51), first permanent magnet (4) have coaxially connected fixed part (41) and sticking department (42), the fixed part
(41) between the buffering end cap (2) and the inward flange (51), the inward flange (51) be located at the dsah-pot (1) and
Between the sticking department (42).
6. returning buffering device according to claim 5, which is characterized in that the damper piston (3) has piston boit
(31), the diameter of the piston boit (31) is not less than the internal diameter of the inward flange (51), the axial length of the sticking department (42)
No more than the axial length of the inward flange (51).
7. returning buffering device according to claim 6, which is characterized in that be arranged on the inner wall of the insulating bushing (5)
There is the conical surface, the outer wall of the piston boit (31) is slidably matched with the conical surface, and the internal diameter of the conical surface is by far from the convex
One end of edge (51) to one end close to the inward flange (51) is gradually reduced.
8. returning buffering device according to any one of claims 1 to 3, which is characterized in that the work of the damper piston (3)
Stopper rod is equipped with annular protrusion (32), and the outer diameter of the annular protrusion (32) is not less than the outer diameter of the dsah-pot (1), described slow
Rush cylinder (1) far from it is described buffering end cap (2) one end end face and the annular protrusion (32) towards the dsah-pot (1) end
Loop buffer pad (6) are equipped on face.
9. returning buffering device according to claim 8, which is characterized in that the loop buffer pad (6) and the annular
Raised (32) and the dsah-pot (1) are detachably connected.
10. returning buffering device according to claim 8, which is characterized in that the loop buffer pad (6) and the buffering
End cap (2) is equipped with rubber block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811159588.XA CN109162989B (en) | 2018-09-30 | 2018-09-30 | Return buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811159588.XA CN109162989B (en) | 2018-09-30 | 2018-09-30 | Return buffer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109162989A true CN109162989A (en) | 2019-01-08 |
| CN109162989B CN109162989B (en) | 2020-10-16 |
Family
ID=64877470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811159588.XA Active CN109162989B (en) | 2018-09-30 | 2018-09-30 | Return buffer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162989B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895582A (en) * | 2021-08-26 | 2022-01-07 | 武汉船用机械有限责任公司 | Deceleration buffer device and deceleration buffer method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004036866A (en) * | 2002-07-08 | 2004-02-05 | Ebara Corp | Hydraulic cylinder and impact relieving adjustment method |
| CN203335529U (en) * | 2013-06-21 | 2013-12-11 | 河南宏源液压机械制造有限公司 | Magnetic buffer air cylinder |
| CN203939811U (en) * | 2014-05-30 | 2014-11-12 | 诸暨市盛淼针织机械科技有限公司 | A kind of cylinder |
| CN204127028U (en) * | 2014-09-15 | 2015-01-28 | 常州力安液压设备有限公司 | With the hydraulic jack of multi-buffer device |
| CN204552371U (en) * | 2015-01-13 | 2015-08-12 | 宁波以赛亚气动成套有限公司 | One is closed the door bounce cylinder |
| CN108488296A (en) * | 2018-03-21 | 2018-09-04 | 武汉船用机械有限责任公司 | A kind of hydraulic bjuffer |
-
2018
- 2018-09-30 CN CN201811159588.XA patent/CN109162989B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004036866A (en) * | 2002-07-08 | 2004-02-05 | Ebara Corp | Hydraulic cylinder and impact relieving adjustment method |
| CN203335529U (en) * | 2013-06-21 | 2013-12-11 | 河南宏源液压机械制造有限公司 | Magnetic buffer air cylinder |
| CN203939811U (en) * | 2014-05-30 | 2014-11-12 | 诸暨市盛淼针织机械科技有限公司 | A kind of cylinder |
| CN204127028U (en) * | 2014-09-15 | 2015-01-28 | 常州力安液压设备有限公司 | With the hydraulic jack of multi-buffer device |
| CN204552371U (en) * | 2015-01-13 | 2015-08-12 | 宁波以赛亚气动成套有限公司 | One is closed the door bounce cylinder |
| CN108488296A (en) * | 2018-03-21 | 2018-09-04 | 武汉船用机械有限责任公司 | A kind of hydraulic bjuffer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895582A (en) * | 2021-08-26 | 2022-01-07 | 武汉船用机械有限责任公司 | Deceleration buffer device and deceleration buffer method |
| CN113895582B (en) * | 2021-08-26 | 2022-12-27 | 武汉船用机械有限责任公司 | Deceleration buffer device and deceleration buffer method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109162989B (en) | 2020-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109162989A (en) | Returning buffering device | |
| US20210115999A1 (en) | Axial displacement amplified eddy current damper | |
| CN107339515B (en) | Vortex-resistant composite material wall bushing flange plate | |
| CN204175769U (en) | A kind of hold down gag of lock nut | |
| KR101344859B1 (en) | Door stopper | |
| CN211089724U (en) | Anti-collision monitoring camera | |
| CN108194570B (en) | Rigid-elastic conversion shock absorber | |
| CN202746329U (en) | Step type buffering sleeve for hydraulic cylinder | |
| CN211924617U (en) | Hydraulic cylinder with buffer function | |
| CN110566534B (en) | Damping device | |
| CN209458216U (en) | A kind of buffering structure of hydraulic cylinder | |
| CN203681579U (en) | Switching locking mechanism comprising adjustable friction damper | |
| CN108825598A (en) | A kind of mobile power docking facilities of plate | |
| CN110748594A (en) | Novel oil buffer | |
| CN109236791A (en) | A kind of hydraulic cylinder of band buffering | |
| CN210889885U (en) | Novel oil buffer | |
| CN215111142U (en) | Automobile oil pump with comprehensive functions | |
| CN212957914U (en) | Aviation warning device for high-voltage power transmission tower | |
| CN210484234U (en) | Piston rod for cylinder | |
| CN218377131U (en) | Hydraulic cylinder with retaining performance | |
| CN216562807U (en) | Breaker opening and closing buffer device | |
| CN217114286U (en) | Magnetic flux converter with buffer device | |
| CN214837207U (en) | Diffuser with damping function for gas centrifugal compressor | |
| CN210510075U (en) | Buffer cushion structure | |
| CN219529443U (en) | Hydraulic cylinder piston rod damping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |