CN113309760A - High-pressure buffer cylinder - Google Patents
High-pressure buffer cylinder Download PDFInfo
- Publication number
- CN113309760A CN113309760A CN202110677151.0A CN202110677151A CN113309760A CN 113309760 A CN113309760 A CN 113309760A CN 202110677151 A CN202110677151 A CN 202110677151A CN 113309760 A CN113309760 A CN 113309760A
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- China
- Prior art keywords
- hole
- end cover
- piston
- buffering
- cylinder body
- 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.)
- Pending
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Classifications
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- 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
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- 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
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- 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
- F15B15/1433—End caps
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- 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
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Actuator (AREA)
Abstract
The invention discloses a high-pressure buffer cylinder which comprises a cylinder body, wherein an inverted L-shaped left piston and an L-shaped right piston are movably arranged in the cylinder body, an upper driving rack is arranged on the lower surface of a cantilever of the left piston, a lower driving rack is arranged on the upper surface of a cantilever of the right piston, and a transmission gear is arranged between the cantilever of the left piston and the cantilever of the right piston; a left end cover and a right end cover are arranged on two sides of the cylinder body, an air inlet through hole is formed in the left end cover, and an air inlet and outlet port communicated with the space between the air inlet through hole and the left piston and the left end cover is formed in the left end cover; the cylinder body is provided with an air supply through hole communicated with the air inlet through hole, and the other end of the air supply through hole is communicated with a space between the right piston and the right end cover; the middle part of the end face of the left piston is provided with a positioning hole, a buffering guide pillar is movably arranged in the positioning hole, a buffering spring is arranged between the buffering guide pillar and the bottom of the positioning hole, the end part of the buffering guide pillar is provided with a buffering block, a buffering sealing gasket is arranged in the buffering block, and a positioning ring matched with the buffering sealing gasket is arranged on the left end cover.
Description
Technical Field
The invention relates to a high-pressure buffer cylinder.
Background
Although the traditional air cylinder can provide larger torque in a shorter time, the traditional air cylinder does not have a buffering function, and can only be used for valves with small specifications due to the limit value of the structure, such as a valve with a large specification, certain damage can be caused to the components of the valve, and the service life of the valve is shortened.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a high-pressure buffer cylinder capable of providing a large torque while attenuating impact force of rapid opening/closing of a valve to protect a valve member is provided.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the high-pressure buffer cylinder comprises a cylinder body, wherein an inverted L-shaped left piston and an L-shaped right piston are movably arranged in the cylinder body, a sealing ring matched with the cylinder body is arranged on the periphery of the left piston, and a sealing ring matched with the cylinder body is arranged on the periphery of the right piston; an upper driving rack is arranged on the lower surface of a cantilever of the left piston, a lower driving rack is arranged on the upper surface of a cantilever of the right piston, and a transmission gear which is meshed with the upper driving rack and the lower driving rack at the same time is movably arranged between the cantilever of the left piston and the cantilever of the right piston; the two sides of the cylinder body are respectively provided with a left end cover and a right end cover which are embedded into the cylinder body, the periphery of the left end cover is provided with a sealing ring matched with the cylinder body, and the periphery of the right end cover is provided with a sealing ring matched with the cylinder body; the left end cover is provided with an air inlet through hole, and the left end cover is provided with an air inlet and outlet which are communicated with the space between the left piston and the left end cover and the air inlet and outlet on the air inlet through hole; the cylinder body is provided with an air supply through hole communicated with the air inlet through hole, and the other end of the air supply through hole is communicated with a space between the right piston and the right end cover; the middle part of the end face of the left piston is provided with a positioning hole, a buffering guide pillar is movably arranged in the positioning hole, a buffering spring is arranged between the buffering guide pillar and the bottom of the positioning hole, the end part of the buffering guide pillar is provided with a buffering block, a buffering sealing gasket is arranged in the buffering block, and a positioning ring matched with the buffering sealing gasket is arranged on the left end cover.
As a preferable scheme, an adjusting hole communicated with the air inlet through hole is formed in the left end cover, an adjusting screw penetrates through the adjusting hole, and the adjusting screw is screwed to adjust the volume of the end portion of the adjusting screw which is immersed into the air inlet through hole.
As a preferable scheme, a buffering guide sleeve is detachably arranged in the positioning hole, and the buffering guide pillar is arranged in the buffering guide sleeve in a penetrating mode.
As a preferable scheme, the buffer guide post is provided with a containing hole for containing the end part of the buffer spring.
As a preferable scheme, the buffer guide post is provided with an air dispersing hole communicating the accommodating hole and the space outside the buffer guide post.
Preferably, the buffer block is connected with the buffer guide pillar through a fastening screw.
As a preferred scheme, the left end cover is provided with an avoiding hole communicated with the air inlet through hole and used for avoiding the fastening screw.
As a preferred scheme, the left end cover is provided with an avoiding hole matched with the buffer block.
As a preferable scheme, an annular weight-reducing groove is formed in the end face, opposite to the left end cover, of the left piston, and an annular weight-reducing groove is formed in the end face, close to the cylinder body, of the left end cover; and an annular weight-reducing groove is formed in the end face, opposite to the right end cover, of the right piston, and an annular weight-reducing groove is formed in the end face, close to the cylinder body, of the right end cover.
The invention has the beneficial effects that: this cylinder can be when providing big moment of torsion, and the end cover is contacted earlier than the piston through piston buffer assembly at the valve opening in-process to slow down the last speed reduction impact force of valve opening process.
Because the left end cover is provided with the adjusting hole communicated with the air inlet through hole, the adjusting screw penetrates through the adjusting hole, and the adjusting screw is screwed to adjust the volume of the end part of the adjusting screw which is immersed into the air inlet through hole, when the adjusting screw is screwed into the air cylinder, the part of the screw which enters the air passage of the end cover is increased, the area of the air passage is reduced, the exhaust volume in the same time is reduced, so that the pressure on the left side of the piston is reduced slowly, the pressure difference on the two sides of the piston is changed slowly, and the speed of closing the valve is reduced; on the contrary, if the adjusting screw is screwed out of the cylinder, the screw is screwed into the air passage part of the end cover to be reduced, the area of the air passage is enlarged, the exhaust quantity in the same time is increased, the pressure difference at two sides of the piston is changed quickly, and the closing speed of the valve can be increased. The high-pressure buffer cylinder needs to adjust an adjusting screw under the working conditions of air source pressure and a valve, so that the high-pressure buffer cylinder reaches an optimal working state.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the structure of the exhaust buffer assembly on the left end cap.
Fig. 3 is a schematic structural view of a piston cushioning assembly.
FIG. 4 is a schematic view of the piston cushioning assembly contacting the end cap first.
FIG. 5 is a schematic view of the piston contacting the end cap.
In fig. 1 to 5: 1. the exhaust buffer assembly comprises an exhaust buffer assembly 2, a left end cover 3, a piston buffer assembly 4, a cylinder body 5, a left piston 6, a transmission gear 7, a right piston 8, a right end cover 9, a fastening nut 10, a cap nut 11, an adjusting screw 12, a sealing ring 13, a fastening screw 14, a buffer sealing gasket 15, a buffer guide sleeve 16, a buffer guide pillar 17 and a buffer spring.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-5, the high-pressure buffer cylinder comprises a cylinder body 4, wherein an inverted L-shaped left piston 5 and an L-shaped right piston 7 are movably arranged in the cylinder body 4, a sealing ring matched with the cylinder body 4 is arranged on the periphery of the left piston 5, and a sealing ring matched with the cylinder body 4 is arranged on the periphery of the right piston 7; an annular weight reduction groove is formed in the end face, opposite to the left end cover 2, of the left piston 5, and an annular weight reduction groove is formed in the end face, opposite to the right end cover 8, of the right piston 7. An upper driving rack is arranged on the lower surface of a cantilever of the left piston 5, a lower driving rack is arranged on the upper surface of a cantilever of the right piston 7, and a transmission gear 6 which is meshed with the upper driving rack and the lower driving rack simultaneously is movably arranged between the cantilever of the left piston 5 and the cantilever of the right piston 7;
a left end cover 2 and a right end cover 8 which are embedded into the cylinder body 4 are respectively arranged at two sides of the cylinder body 4, a sealing ring which is matched with the cylinder body 4 is arranged at the periphery of the left end cover 2, and a sealing ring which is matched with the cylinder body 4 is arranged at the periphery of the right end cover 8; an annular weight reduction groove is formed in the end face, close to the cylinder body 4, of the left end cover 2; an annular weight reduction groove is arranged on the end surface of the right end cover 8 close to the cylinder body 4. The left end cover 2 is provided with an air inlet through hole, and the left end cover 2 is provided with an air inlet and outlet which are communicated with the space between the left piston 5 and the left end cover 2 on the air inlet through hole; the cylinder body 4 is provided with an air supply through hole communicated with the air inlet through hole, and the other end of the air supply through hole is communicated with the space between the right piston 7 and the right end cover 8; be equipped with exhaust buffering subassembly 1 in the left end cover 2, exhaust buffering subassembly 1 is including setting up the regulation hole that link up with the air inlet through-hole in left end cover 2, wears to be equipped with adjusting screw 11 in the regulation hole, twists adjusting screw 11 in order to adjust its tip and immerse the volume of air inlet through-hole, and adjusting screw 11 includes screw thread section and light section, is equipped with on the light section with regulation hole matched with sealing washer 12. The end face of the adjusting screw 11 extending out of the left end cover 2 is provided with a fastening nut 9, and the left end cover 2 is provided with a cap nut 10 covering the fastening nut 9.
The middle part of the end face of the left piston 5 is provided with a positioning hole, a piston buffering component 3 is arranged in the positioning hole, the piston buffering component 3 comprises a buffering guide sleeve 15 which is detachably arranged in the positioning hole, and a buffering guide pillar 16 penetrates through the buffering guide sleeve 15. A buffer spring 17 is arranged between the buffer guide post 16 and the bottom of the positioning hole, and a containing hole for containing the end part of the buffer spring 17 is arranged on the buffer guide post 16. The buffer guide post 16 is provided with an air dispersing hole for communicating the containing hole and the space outside the buffer guide post 16. The end part of the buffering guide post 16 is provided with a buffering block through a fastening screw 13, and the left end cover 2 is provided with an avoiding hole communicated with the air inlet through hole and avoiding the fastening screw 13. And the left end cover 2 is provided with an avoiding hole matched with the buffer block. The buffer block is provided with a buffer sealing gasket 14, and the left end cover 2 is provided with a positioning ring matched with the buffer sealing gasket 14.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (9)
1. A high-pressure buffer cylinder is characterized in that: the piston cylinder comprises a cylinder body, wherein an inverted L-shaped left piston and an L-shaped right piston are movably arranged in the cylinder body, a sealing ring matched with the cylinder body is arranged on the periphery of the left piston, and a sealing ring matched with the cylinder body is arranged on the periphery of the right piston; an upper driving rack is arranged on the lower surface of a cantilever of the left piston, a lower driving rack is arranged on the upper surface of a cantilever of the right piston, and a transmission gear which is meshed with the upper driving rack and the lower driving rack at the same time is movably arranged between the cantilever of the left piston and the cantilever of the right piston; the two sides of the cylinder body are respectively provided with a left end cover and a right end cover which are embedded into the cylinder body, the periphery of the left end cover is provided with a sealing ring matched with the cylinder body, and the periphery of the right end cover is provided with a sealing ring matched with the cylinder body; the left end cover is provided with an air inlet through hole, and the left end cover is provided with an air inlet and outlet which are communicated with the space between the left piston and the left end cover and the air inlet and outlet on the air inlet through hole; the cylinder body is provided with an air supply through hole communicated with the air inlet through hole, and the other end of the air supply through hole is communicated with a space between the right piston and the right end cover; the middle part of the end face of the left piston is provided with a positioning hole, a buffering guide pillar is movably arranged in the positioning hole, a buffering spring is arranged between the buffering guide pillar and the bottom of the positioning hole, the end part of the buffering guide pillar is provided with a buffering block, a buffering sealing gasket is arranged in the buffering block, and a positioning ring matched with the buffering sealing gasket is arranged on the left end cover.
2. A high pressure buffer cylinder as in claim 1, wherein: and an adjusting hole communicated with the air inlet through hole is formed in the left end cover, an adjusting screw penetrates through the adjusting hole, and the adjusting screw is screwed to adjust the volume of the end part of the adjusting screw which is immersed into the air inlet through hole.
3. A high pressure buffer cylinder as in claim 1, wherein: the positioning hole is detachably provided with a buffering guide sleeve, and the buffering guide pillar is arranged in the buffering guide sleeve in a penetrating mode.
4. A high pressure buffer cylinder as in claim 1, wherein: and the buffer guide post is provided with a containing hole for containing the end part of the buffer spring.
5. A high pressure buffer cylinder as in claim 1, wherein: the buffer guide post is provided with an air dispersing hole which is communicated with the containing hole and the space outside the buffer guide post.
6. A high pressure buffer cylinder as claimed in any one of claims 1 to 5, characterized by: the buffer block is connected with the buffer guide pillar through a fastening screw.
7. A high pressure buffer cylinder as claimed in any one of claims 1 to 5, characterized by: and the left end cover is provided with a avoiding hole communicated with the air inlet through hole and used for avoiding the fastening screw.
8. A high pressure buffer cylinder as in claim 7 wherein: and the left end cover is provided with an avoiding hole matched with the buffer block.
9. A high pressure buffer cylinder as in claim 8, wherein: an annular weight-reducing groove is formed in the end face, opposite to the left end cover, of the left piston, and an annular weight-reducing groove is formed in the end face, close to the cylinder body, of the left end cover; and an annular weight-reducing groove is formed in the end face, opposite to the right end cover, of the right piston, and an annular weight-reducing groove is formed in the end face, close to the cylinder body, of the right end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110677151.0A CN113309760A (en) | 2021-06-18 | 2021-06-18 | High-pressure buffer cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110677151.0A CN113309760A (en) | 2021-06-18 | 2021-06-18 | High-pressure buffer cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113309760A true CN113309760A (en) | 2021-08-27 |
Family
ID=77379429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110677151.0A Pending CN113309760A (en) | 2021-06-18 | 2021-06-18 | High-pressure buffer cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113309760A (en) |
-
2021
- 2021-06-18 CN CN202110677151.0A patent/CN113309760A/en active Pending
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