CN205013818U - Shift fork formula pneumatic actuator for nonoculture - Google Patents
Shift fork formula pneumatic actuator for nonoculture Download PDFInfo
- Publication number
- CN205013818U CN205013818U CN201520786304.5U CN201520786304U CN205013818U CN 205013818 U CN205013818 U CN 205013818U CN 201520786304 U CN201520786304 U CN 201520786304U CN 205013818 U CN205013818 U CN 205013818U
- Authority
- CN
- China
- Prior art keywords
- shift fork
- spring
- movable block
- piston
- pneumatic actuator
- 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.)
- Expired - Fee Related
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Abstract
Shift fork formula pneumatic actuator for nonoculture, including the left side cylinder, middle shift fork cylinder body and right side spring barrel, three sealing connection, including the piston in the cylinder, the piston center is provided with the piston rod, the piston rod both sides are provided with the guide post, piston rod left end and piston center consolidation, the right -hand member stretches into shift fork cylinder body in -connection movable block one end, movable block other end coupling spring pull rod left end, spring pull rod right -hand member stretches into the spring holder that the internal wall reciprocating sliding of spring strut can be followed in the internal connection of spring strut, spring pot head other end on the spring holder pushes up to be held in the spring strut sinistron, the dead eye has been seted up along the axial to the movable block, is equipped with nos oily self -lubricating bearing in the dead eye, does not have oily self -lubricating bearing and overlaps in the guide bar, seted up the shift fork connecting hole on the movable block in the shift fork cylinder body, is provided with the connecting rod in the connecting hole, is connected the spout connection below connecting rod and the movable block on the shift fork. Sealing performance is good, prevents leaking and the guidance quality can be good, effectively prevents the wearing and tearing of radial missing production.
Description
Technical field
The utility model belongs to valve field, is specifically related to a kind of single-acting shift fork type pneumatic actuator for control valve.
Background technique
The driving mechanism of pneumatic actuator has pinion and-rack and fork type two kinds, and shift fork type pneumatic actuator drives shift fork to rotate by piston rod moving linearly, and then drives main shaft or valve rod to rotate.Shift fork type pneumatic actuator of the prior art mainly comprises cylinder part and shift fork transmission part, cylinder part comprises cylinder, cylinder head, piston and piston rod, shift fork transmission part comprises pull-fork assembly, main shaft and casing, main shaft and pull-fork assembly are arranged in casing, main shaft is connected with body pivot, and pull-fork assembly and piston rod are in transmission connection.But existing shift fork type pneumatic actuator compares effort when manual tune, operation inconvenience.
Summary of the invention
The utility model, for the deficiencies in the prior art, provides a kind of good seal performance, anti-leak and steering capability is good, effectively prevents the wearing and tearing that radial missing produces, the single-acting shift fork type pneumatic actuator increased the service life.
For realizing the utility model object, provide following technological scheme: single-acting shift fork type pneumatic actuator, comprise left hand cylinder, intermediate fork cylinder body and right side spring cylindrical shell, three is tightly connected, it is characterized in that comprising piston in cylinder, piston centre is provided with piston rod, piston rod both sides are provided with directional post, piston rod left end and piston centre consolidation, right-hand member stretches in shift fork cylinder body and connects movable block one end, movable block the other end linking springs pull bar left end, spring pull bar right-hand member stretches into the spring seat connecting in spring cylindrical shell and can reciprocatingly slide along spring cylinder inboard wall, spring one end is placed on the other end on spring seat and peaks at spring cylindrical shell left end, described movable block offers bearing hole vertically, oil-less self-lubricating bearing is provided with in bearing hole, oil-less self-lubricating bearing to be placed in shift fork cylinder body in guide rod, movable block offers shift fork attachment hole, connecting rod is provided with in attachment hole, connection chute below connecting rod and movable block on shift fork connects.
As preferably, shift fork both sides are provided with stop screw.
As preferably, the junction surface of spring seat and spring cylindrical shell is provided with seal ring.
As preferably, shift fork is placed on output shaft, and output shaft upper end is provided with mechanical valve phase indicator.
As preferably, the contact jaw of piston and cylinder is provided with seal ring and guide ring.
The utility model beneficial effect: the utility model by arranging multiple directional post, bar, and is slided by bearing, greatly reduces gauge wear, increases the service life, and effectively reduces cylinder power consumption, simple and practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
The stereogram of Fig. 3 bitmap 1.
Embodiment
Embodiment 1: single-acting shift fork type pneumatic actuator, comprise left hand cylinder 1, intermediate fork cylinder body 2 and right side spring cylindrical shell 3, three is tightly connected, piston 1.1 is comprised in cylinder 1, piston 1.1 center is provided with piston rod 1.2, piston rod 1.2 both sides are provided with directional post 1.3, piston rod 1.2 left end and piston 1.1 center consolidation, right-hand member stretches in shift fork cylinder body 2 and connects movable block 2.1 one end, movable block 2.1 the other end linking springs pull bar 3.1 left end, spring pull bar 3.1 right-hand member stretches into the spring seat 3.2 connecting in spring cylindrical shell 3 and can reciprocatingly slide along spring cylindrical shell 3 inwall, spring 3.3 one end is placed on the other end on spring seat 3.2 and peaks at spring cylindrical shell 3 left end, described movable block 2.1 offers bearing hole 2.1.1 vertically, oil-less self-lubricating bearing 4 is provided with in bearing hole 2.1.1, oil-less self-lubricating bearing 4 to be placed in shift fork cylinder body 2 in guide rod 2.2, movable block 2.1 offers shift fork attachment hole, connecting rod 2.1.2 is provided with in attachment hole, connection chute 5.1 below connecting rod 2.1.2 and movable block 2.1 on shift fork 5 connects.Shift fork 5 both sides are provided with stop screw 6.Spring seat 3.2 and the junction surface of spring cylindrical shell 3 are provided with seal ring 7.Shift fork 5 is placed on output shaft 8, and output shaft 8 upper end is provided with mechanical valve phase indicator 9.Piston 1.1 and the contact jaw of cylinder 1 are provided with seal ring 7 and guide ring 10.
Claims (5)
1. single-acting shift fork type pneumatic actuator, comprise left hand cylinder, intermediate fork cylinder body and right side spring cylindrical shell, three is tightly connected, it is characterized in that comprising piston in cylinder, piston centre is provided with piston rod, piston rod both sides are provided with directional post, piston rod left end and piston centre consolidation, right-hand member stretches in shift fork cylinder body and connects movable block one end, movable block the other end linking springs pull bar left end, spring pull bar right-hand member stretches into the spring seat connecting in spring cylindrical shell and can reciprocatingly slide along spring cylinder inboard wall, spring one end is placed on the other end on spring seat and peaks at spring cylindrical shell left end, described movable block offers bearing hole vertically, oil-less self-lubricating bearing is provided with in bearing hole, oil-less self-lubricating bearing to be placed in shift fork cylinder body in guide rod, movable block offers shift fork attachment hole, connecting rod is provided with in attachment hole, connection chute below connecting rod and movable block on shift fork connects.
2. single-acting shift fork type pneumatic actuator according to claim 1, is characterized in that shift fork both sides are provided with stop screw.
3. single-acting shift fork type pneumatic actuator according to claim 1, the junction surface that it is characterized in that spring seat and spring cylindrical shell is provided with seal ring.
4. single-acting shift fork type pneumatic actuator according to claim 1, it is characterized in that shift fork is placed on output shaft, output shaft upper end is provided with mechanical valve phase indicator.
5. single-acting shift fork type pneumatic actuator according to claim 1, the contact jaw that it is characterized in that piston and cylinder is provided with seal ring and guide ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520786304.5U CN205013818U (en) | 2015-10-12 | 2015-10-12 | Shift fork formula pneumatic actuator for nonoculture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520786304.5U CN205013818U (en) | 2015-10-12 | 2015-10-12 | Shift fork formula pneumatic actuator for nonoculture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013818U true CN205013818U (en) | 2016-02-03 |
Family
ID=55212421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520786304.5U Expired - Fee Related CN205013818U (en) | 2015-10-12 | 2015-10-12 | Shift fork formula pneumatic actuator for nonoculture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240594A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Single-action shifting fork type pneumatic actuator |
-
2015
- 2015-10-12 CN CN201520786304.5U patent/CN205013818U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240594A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Single-action shifting fork type pneumatic actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160203 Termination date: 20161012 |