CN106246635B - From pressure release piston rod - Google Patents
From pressure release piston rod Download PDFInfo
- Publication number
- CN106246635B CN106246635B CN201610745981.1A CN201610745981A CN106246635B CN 106246635 B CN106246635 B CN 106246635B CN 201610745981 A CN201610745981 A CN 201610745981A CN 106246635 B CN106246635 B CN 106246635B
- Authority
- CN
- China
- Prior art keywords
- slide opening
- piston rod
- axial
- sliding block
- axial slide
- 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
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000005489 elastic deformation Effects 0.000 abstract 1
- 230000006837 decompression Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/005—Leakage; Spillage; Hose burst
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
-
- 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)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
It is a kind of from pressure release piston rod the present invention relates to cylinder field, piston rod one end connects piston, and the end is axially arranged with one section of axial slide opening, axial slide opening open at one end, other end closing along piston rod, and open end is located at the piston rod end end face；Piston rod is equipped with the radial through-hole communicated with axial slide opening radially adjacent to axial slide opening blind end, and axial slide opening open end is located at the both sides of piston with the radial through-hole；It is equipped with sliding block in axial sliding in axial slide opening, to be slidingly sealed between sliding block and axial slide opening, and is equipped with the resetting spring pushed against between sliding block and above-mentioned blind end, limit screw cap of the open end thread seal connection with axially extending bore of axial slide opening；Under resetting spring original state, the axially extending bore of limit screw cap and the radial through-hole of piston rod do not turn on；When slide opening slides into compression reseting spring elastic deformation maximum to sliding block in an axial direction, the axially extending bore of limit screw cap is connected by axial slide opening with the radial through-hole of piston rod, to realize from pressure release.
Description
Technical field
It is in a kind of actuating cylinder from pressure release piston rod the present invention relates to cylinder.
Background technology
General actuating cylinder controls inlet and outlet by structure compositions such as cylinder barrel, piston, piston rods, by cylinder barrel both ends, to
Piston is pushed to be moved back and forth inside cylinder barrel, stretching motion is made in the output of piston driving piston rod.In practical applications, due to work
Inevitably there is the case where cylinder operation overload in the diversity of operating mode, this just needs to design overload protection, and conventional means are logical
It crosses and meter relief valve is set up separately to gas supply part, to prevent cylinder from continuing to act in the case of an overload, but this method and non-fully may be used
It leans on, main reason is that different cylinder load is different, and relief valve is usually adjusted by operating personnel, once carelessness or adjusting are not
When, however it remains the security risk of overload protection failure.For this purpose, needing to be improved existing cylinder.
Invention content
To overcome above-mentioned deficiency, the present invention to design one kind from pressure release piston rod, it is made to solve existing cylinder overload prevention
The more single technical problem of mode.It adopts the following technical scheme that realization.
The one end from pressure release piston rod connects piston, and one end of piston rod connection piston is axially arranged with one section along piston rod
Axial slide opening, axial slide opening open at one end, other end closing, and open end is located at the piston rod end end face；The piston rod
It is radially provided with the radial through-hole communicated with the axial slide opening, and the radial through-hole is close to the blind end of the axial slide opening, institute
The open end for stating axial slide opening is located at the both sides of the piston with the radial through-hole；Setting is axial in the axial direction slide opening
The sliding block of sliding to be slidingly sealed between sliding block and axial slide opening, and is arranged between sliding block and the blind end of axial slide opening and pushes against
Resetting spring；The open end of the axial direction slide opening is threadedly coupled the limit screw cap with axially extending bore, and limit screw cap will be described
Sliding block, resetting spring are limited in the axial slide opening；Under the resetting spring original state, the sliding block is located at the axial direction
In the middle part of slide opening, the axially extending bore of the limit screw cap and the radial through-hole of the piston rod do not turn on；When the sliding block is towards described
When axial slide opening blind end slides into positive stop end, the axially extending bore of the limit screw cap passes through the axial slide opening and the piston
The radial through-hole of bar is connected.It is pushed in axial slide opening by overload pressure when piston pressure side overload by above structure
The direction of sliding block towards compression reseting spring slide into positive stop end, to make overload pressure pass through limit screw cap axially extending bore,
The axial slide opening of piston rod and radial slide opening pressure release realize that cylinder from decompression protection, more may be used to the exhaust end of the piston other side
By convenient.
The axial direction slide opening is cylindrical hole, and the sliding block is cylindrical traveller or ball.The structure is easy for installation, work compared with
It is reliable.
The head cap part of the limit screw cap is located at the piston rod end face, and head cap part is elastic rubbery body, is played
The effect of buffering and damping.
The present invention realizes cylinder from decompression function, coordinate existing gas supply part from pressure release, cylinder operation is more reliable, pacifies
Entirely.
Description of the drawings
Fig. 1 is original state schematic cross-sectional view of the present invention.
Fig. 2 is pressure release state schematic cross-sectional view of the present invention.
Serial number and entitled in figure：1, piston rod, 101, axial slide opening, 102, radial through-hole, 2, piston, 3, sliding block, 4,
Resetting spring, 5, limit screw cap, 501, axially extending bore.
Specific implementation mode
In conjunction with attached drawing, the present invention is described as follows.
As shown in Figure 1 and Figure 2, piston 2 should be connected from one end of pressure release piston rod, the end of piston rod 1 is axial along piston rod 1
Equipped with one section of axial slide opening 101,101 open at one end of axial slide opening, other end closing, and open end is located at the end end of piston rod 1
Face；The piston rod 1 is radially provided with the radial through-hole 102 communicated with the axial slide opening 101, and the radial through-hole 102 leans on
The blind end of the nearly axial slide opening 101, the open end of the axial direction slide opening 101 are located at institute with the radial through-hole 102
State the both sides of piston 2.Sliding block 3, sliding block 3 are cylindrical traveller or ball in axial sliding for setting in the axial slide opening 101, are slided
The reset of abutting is set to be slidingly sealed between block 3 and axial slide opening 101, and between sliding block 3 and the blind end of axial slide opening 101
Spring 4.The open end of axial slide opening 101 is threadedly coupled the limit screw cap 5 with axially extending bore 501, limit screw cap 5 by sliding block 3,
Resetting spring 4 is limited in axial slide opening 101, and the axially extending bore 501 of limit screw cap 5 is by axial slide opening 101 and piston rod 1
101 open end turned on outside of axial slide opening.Under 4 original state of resetting spring, sliding block 3 is located at 101 middle part of axial slide opening, limits spiral shell
The axially extending bore 501 of cap 5 is not turned on the radial through-hole 102 of piston rod 1；When sliding block 3 slides into towards 101 blind end of axial slide opening
When positive stop end, resetting spring 4 is compressed, the axial slide opening 101 and piston that the axially extending bore 501 of limit screw cap 5 passes through piston rod 1
The radial through-hole 102 of bar 1 is connected.
In order to improve the protection for crossing position sliding to piston rod 1, the head cap part of limit screw cap 5 is elastic rubbery body, and position
In 1 end face of piston rod.
The operation principle of the present invention is that：When being located at the chamber overload of the pressure of piston 2 side in cylinder barrel, chamber is overloaded
Pressure push 3 compression reseting spring 4 of sliding block in axial slide opening 101 and slide into positive stop end, at this point, the axis of limit screw cap 5
It is connected to through-hole 501 by the axial slide opening 101 of piston rod 1 and the radial through-hole 102 of piston rod 1, overloads the pressure pressure release of chamber
To the exhaust chamber of cylinder barrel, realize from decompression protection.When restoring to normal pressure, sliding block 3 is under the effect of resetting spring 4
It resets, cylinder restores normal work.
Claims (1)
1. a kind of from pressure release piston rod, the piston rod（1）One end connects piston（2）；It is characterized in that the piston rod（1）Connection
Piston（2）One end along piston rod（1）It is axially arranged with one section of axial slide opening（101）, axial slide opening（101）Open at one end, it is another
End seal is closed, and open end is located at piston rod（1）End face；The piston rod（1）Be radially provided with and the axial slide opening（101）Phase
Logical radial through-hole（102）, and the radial through-hole（102）Close to the axial slide opening（101）Blind end, it is described axial direction slide opening
（101）Open end and the radial through-hole（102）It is located at the piston（2）Both sides；The axial direction slide opening（101）It is interior
Sliding block in axial sliding is set（3）, sliding block（3）With axial slide opening（101）Between to be slidingly sealed, and sliding block（3）With axial cunning
Hole（101）Blind end between the resetting spring of abutting is set（4）；The axial direction slide opening（101）Open end be threadedly coupled band
There is axially extending bore（501）Limit screw cap（5）, limit screw cap（5）By the sliding block（3）, resetting spring（4）It is limited in the axis
To slide opening（101）It is interior；The resetting spring（4）Under original state, the sliding block（3）Positioned at the axial slide opening（101）Middle part,
The limit screw cap（5）Axially extending bore（501）With the piston rod（1）Radial through-hole（102）It does not turn on；When the sliding block
（3）Towards the axial slide opening（101）When blind end slides into positive stop end, the limit screw cap（5）Axially extending bore（501）Pass through
The axial direction slide opening（101）With the piston rod（1）Radial through-hole（102）Conducting；The axial direction slide opening（101）For cylinder
Hole, the sliding block（3）For cylindrical traveller or ball；The limit screw cap（5）Head cap part be located at the piston rod（1）End
Face, and head cap part is elastic rubbery body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745981.1A CN106246635B (en) | 2016-08-29 | 2016-08-29 | From pressure release piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745981.1A CN106246635B (en) | 2016-08-29 | 2016-08-29 | From pressure release piston rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246635A CN106246635A (en) | 2016-12-21 |
| CN106246635B true CN106246635B (en) | 2018-07-24 |
Family
ID=57597032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610745981.1A Active CN106246635B (en) | 2016-08-29 | 2016-08-29 | From pressure release piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106246635B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696397A (en) * | 2020-12-22 | 2021-04-23 | 张燕 | Buffer hydraulic oil cylinder |
| CN112682547B (en) * | 2021-01-18 | 2023-04-11 | 中国电子科技集团公司第二十九研究所 | Self-adaptive pressure relief and liquid containing device of penetrating liquid cooling case of electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102023A (en) * | 1985-02-28 | 1986-09-24 | 株式会社丰田自动织机制作所 | Hydraulic shift cylinders with buffer traffic control valve device |
| GB2319562B (en) * | 1996-11-22 | 2000-03-08 | Caterpillar Inc | Snubber for a hydraulic motor |
| CN103758814A (en) * | 2013-12-31 | 2014-04-30 | 中船重工中南装备有限责任公司 | Buffer casting air cylinder |
| CN205371146U (en) * | 2016-01-22 | 2016-07-06 | 枣庄市达源液压设备有限公司 | Air cylinder |
| CN206035942U (en) * | 2016-08-29 | 2017-03-22 | 湖州华和金属制品有限公司 | From pressure release piston rod |
-
2016
- 2016-08-29 CN CN201610745981.1A patent/CN106246635B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102023A (en) * | 1985-02-28 | 1986-09-24 | 株式会社丰田自动织机制作所 | Hydraulic shift cylinders with buffer traffic control valve device |
| GB2319562B (en) * | 1996-11-22 | 2000-03-08 | Caterpillar Inc | Snubber for a hydraulic motor |
| CN103758814A (en) * | 2013-12-31 | 2014-04-30 | 中船重工中南装备有限责任公司 | Buffer casting air cylinder |
| CN205371146U (en) * | 2016-01-22 | 2016-07-06 | 枣庄市达源液压设备有限公司 | Air cylinder |
| CN206035942U (en) * | 2016-08-29 | 2017-03-22 | 湖州华和金属制品有限公司 | From pressure release piston rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106246635A (en) | 2016-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180517 Address after: 313000 1403, room 14, B building, free port, 1188 headquarters, Wuxing District, Huzhou, Zhejiang. Applicant after: Zhejiang creation Intellectual Property Service Co., Ltd. Address before: 313000 Tai Po Yang, Wan An Village, Huan Zhu street, Wuxing District, Huzhou, Zhejiang, China Applicant before: Huzhou Hua Hua metal products Co., Ltd. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191009 Address after: 242000 Meixi Road and Wolong Lane Intersection of Feichuan Office in Xuancheng City, Anhui Province Patentee after: Xuancheng Youdu Technology Service Co., Ltd. Address before: 313000 Room 1403, 14th Floor, Building B, Freeport, Headquarters 1188 District Fulu Road, Wuxing District, Huzhou City, Zhejiang Province Patentee before: Zhejiang creation Intellectual Property Service Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210223 Address after: No. 48, Lane 4078, Cao'an highway, Jiangqiao Town, Jiading District, Shanghai Patentee after: SHANGHAI KAIRUIQI PRECISION MACHINERY Co.,Ltd. Address before: 242000 intersection of Meixi Road and Wolong lane, Feicai office, Xuancheng City, Anhui Province Patentee before: Xuancheng Youdu Technology Service Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210330 Address after: 215300 room 5, 78 Lisheng Road, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: KAIYOUHUI MACHINERY EQUIPMENT (KUNSHAN) Co.,Ltd. Address before: No. 48, Lane 4078, Cao'an highway, Jiangqiao Town, Jiading District, Shanghai Patentee before: SHANGHAI KAIRUIQI PRECISION MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |