CN107781255A - A kind of resilient push structure - Google Patents
A kind of resilient push structure Download PDFInfo
- Publication number
- CN107781255A CN107781255A CN201710942314.7A CN201710942314A CN107781255A CN 107781255 A CN107781255 A CN 107781255A CN 201710942314 A CN201710942314 A CN 201710942314A CN 107781255 A CN107781255 A CN 107781255A
- Authority
- CN
- China
- Prior art keywords
- piston
- spring
- push rod
- housing
- push
- 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
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to a kind of resilient push structure, including housing, piston, the first spring, second spring and push rod；Piston, the first spring, second spring and push rod are installed in housing cavity, and housing cavity is plunger shaft；First spring is arranged between piston and push rod so that elastic thrust is formed between piston and push rod；Second spring is arranged between housing and piston, and elastic-restoring force is provided for piston；There is the restraining position of piston in housing cavity, when piston reaches restraining position, described push rod can continue to slide relative to piston.The present invention rigidly transmits piston displacement in general the flexible transfer for being converted into the pusher structure with damping element, it can play a part of buffering impact force, simultaneously by the compressible scope of damping cavity, it ensure that system can effectively work in the case where upper and lower level stroke differs greatly.
Description
Technical field
The present invention relates to valve member field, more particularly to a kind of resilient push structure, it is mainly used in the transmission of piston displacement.
In mechanical hydraulic unit, it usually needs the displacement of some pistons is delivered into low-level device, completes specific function.
Background technology
In mechanical hydraulic unit, the displacement of piston is generally used for controller and calculates or promote low-level device.The former passes through
Displacement transducer can be achieved；Piston displacement often using rigid output, is directly delivered to low-level device by the latter.
The content of the invention
The purpose of invention
Because piston traveling speed is very fast, often there is the problem of impulsive force is larger in existing rigidity output；It can draw simultaneously
Play the unmatched problem of the superior and the subordinate's stroke.By conventional displacement, rigidly output is improved the present invention, by band damping element (such as
Spring, wavy spring, oil nozzle etc.) pusher structure, the displacement of piston is exported, so as to play buffering impact force work
With；The matching of the superior and the subordinate's stroke is ensure that by the compressible scope of damping cavity simultaneously.
Technical scheme
The purpose of the present invention is realized by following measures.A kind of resilient push structure, including housing, work are provided
Plug, the first spring, second spring and push rod；Piston, the first spring, second spring and push rod are installed in housing cavity, shell
Intracoelomic cavity is plunger shaft；First spring is arranged between piston and push rod so that elastic thrust is formed between piston and push rod；The
Two springs are arranged between housing and piston, and elastic-restoring force is provided for piston；There is the spacing position of piston in housing cavity
Put, when piston reaches restraining position, described push rod can continue to slide relative to piston.
Further, the piston is cylindrical structure, and first spring is arranged on cylindrical structure bottom and push rod one end
Between portion, push rod one end is slidably matched with cylindrical structure internal face.
Further, the cylindrical structure inwall has end difference or a convex shoulder, and described second spring one end is spacing in rank
Terraced portion or convex shoulder.
Further, at least one sealing ring is provided between piston and housing cavity.
Further, the housing is high pressure valve body.
Further, the second spring is limited between housing and piston by spring base.
Technique effect
The present invention rigidly transmits piston displacement in general the flexible transfer for being converted into the pusher structure with damping element, energy
Enough play a part of buffering impact force, while by the compressible scope of damping cavity, ensure that system in upper and lower level stroke difference
Can effectively it be worked in the case of larger.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Wherein：Housing 1, piston 2, the first spring 3, the second bullet 4, push rod 5, spring base 6, sealing ring 7, end difference 8.
Embodiment
The invention provides a kind of resilient push structure, including housing 1, piston 2, the first spring 3, second spring 4 and push away
Bar 5；Piston, the first spring, second spring and push rod are installed in housing cavity, and housing cavity is plunger shaft；First spring
It is arranged between piston and push rod so that elastic thrust is formed between piston and push rod；Second spring is arranged on housing and piston
Between, provide elastic-restoring force for piston；There is the restraining position of piston in housing cavity, when piston reaches restraining position
When, described push rod can continue to slide relative to piston；The piston is cylindrical structure, and first spring is arranged on cartridge type
Between structural base and push rod one end, push rod one end is slidably matched with cylindrical structure internal face；The cylindrical structure inwall
There is an end difference, described second spring one end is spacing in end difference 8；A sealing ring 7 is provided between piston and housing cavity.
Further, the second spring is limited between housing and piston by spring base 6.
When piston starts to move, second spring is compressed, and piston is identical with the mobile value of push rod；When piston is moved to
When to a certain degree, push rod touches subordinate's movable part, and promotes subordinate's movable part movement, such as lever assembly；When subordinate lives
Dynamic component moves to extreme position, and push rod passively stops moving, and causes damping element (the first spring) to be compressed, and impact force is risen
Cushioning effect has been arrived, while has allowed low-level device to be moved in less stroke range.
Claims (6)
1. a kind of resilient push structure, including housing, piston, the first spring, second spring and push rod；Piston, the first spring,
Two springs and push rod are installed in housing cavity, and housing cavity is plunger shaft；First spring is arranged between piston and push rod,
So that elastic thrust is formed between piston and push rod；Second spring is arranged between housing and piston, and providing elasticity for piston returns
Multiple power；There is the restraining position of piston in housing cavity, when piston reaches restraining position, described push rod can be relative to
Piston continues to slide.
A kind of 2. resilient push structure as claimed in claim 1, it is characterised in that：The piston is cylindrical structure, described
One spring is arranged between cylindrical structure bottom and push rod one end, and push rod one end is slidably matched with cylindrical structure internal face.
A kind of 3. resilient push structure as claimed in claim 1 or 2, it is characterised in that：The cylindrical structure inwall has ladder
Portion or convex shoulder, described second spring one end are spacing in end difference or convex shoulder.
A kind of 4. resilient push structure as claimed in claim 1 or 2, it is characterised in that：Set between piston and housing cavity
There is at least one sealing ring.
A kind of 5. resilient push structure as claimed in claim 1 or 2, it is characterised in that：The housing is high pressure valve body.
A kind of 6. resilient push structure as claimed in claim 1 or 2, it is characterised in that：The second spring passes through spring base
It is limited between housing and piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942314.7A CN107781255B (en) | 2017-10-11 | 2017-10-11 | A kind of resilient push structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942314.7A CN107781255B (en) | 2017-10-11 | 2017-10-11 | A kind of resilient push structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107781255A true CN107781255A (en) | 2018-03-09 |
| CN107781255B CN107781255B (en) | 2019-11-15 |
Family
ID=61434561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710942314.7A Active CN107781255B (en) | 2017-10-11 | 2017-10-11 | A kind of resilient push structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107781255B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253575A (en) * | 2020-10-14 | 2021-01-22 | 贵州新安航空机械有限责任公司 | Split type piston |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2818410A1 (en) * | 1978-04-27 | 1979-11-08 | Bosch Gmbh Robert | SPRING BRAKE CYLINDER |
| CN1062021A (en) * | 1990-12-06 | 1992-06-17 | Sms舒路曼-斯玛公司 | Produce and transmit the piston-cylinder barrel-combination of pressure |
| CN105659014A (en) * | 2013-08-16 | 2016-06-08 | Cci 公开股份有限公司 | Actuating device and method for actuating a valve |
-
2017
- 2017-10-11 CN CN201710942314.7A patent/CN107781255B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2818410A1 (en) * | 1978-04-27 | 1979-11-08 | Bosch Gmbh Robert | SPRING BRAKE CYLINDER |
| CN1062021A (en) * | 1990-12-06 | 1992-06-17 | Sms舒路曼-斯玛公司 | Produce and transmit the piston-cylinder barrel-combination of pressure |
| CN105659014A (en) * | 2013-08-16 | 2016-06-08 | Cci 公开股份有限公司 | Actuating device and method for actuating a valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253575A (en) * | 2020-10-14 | 2021-01-22 | 贵州新安航空机械有限责任公司 | Split type piston |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107781255B (en) | 2019-11-15 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |