CN206093153U - Big moment of torsion shifting fork type pneumatic actuator - Google Patents
Big moment of torsion shifting fork type pneumatic actuator Download PDFInfo
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- CN206093153U CN206093153U CN201620720245.6U CN201620720245U CN206093153U CN 206093153 U CN206093153 U CN 206093153U CN 201620720245 U CN201620720245 U CN 201620720245U CN 206093153 U CN206093153 U CN 206093153U
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Abstract
The utility model discloses a big moment of torsion shifting fork type pneumatic actuator, including box, the cylindrical chamber body, spring cavity and hand wheel mechanism, cylindrical chamber body seal installation in one side of box, spring cavity installs in the opposite side of box, hand wheel mechanism installs in the rear side of box, shift fork and back shift fork before rotatory drum outside surface is provided with along the axial around, be provided with to back shift fork bilateral symmetry left side bellying, right side bellying, this left side bellying, right side bellying upper surface separately are 90, spring cavity further includes cylinder casing, spring, spring beam and spring guide block, the end cover is installed with the one end that the box was carried on the back mutually to the cylinder casing, sidewise surface parallel offered first recess, second recess annular piston board week, and first recess, second recess are provided with star type sealing washer, O type sealing washer and circular shell body sealing connection respectively. The utility model discloses satisfy the needs of big moment of torsion transmission, it is just sealed effectual, be difficult to wearing and tearing, avoided the leakage problem, it is more convenient to maintain.
Description
Technical field
The utility model is related to a kind of high pulling torque shift fork type pneumatic actuator, belongs to valve field.
Background technology
Shift fork type pneumatic actuator, is a kind of journey piston actuator, is suitable for the valve of 90 ° of corners（Such as ball valve, butterfly
Valve, plug valve）Switch cutoff or measure control.The transmission mechanism of pneumatic actuator has two kinds of pinion and-rack and fork type,
Shift fork type pneumatic actuator is for linear motion by piston rod and drives shift fork to rotate, and then drives main shaft or valve rod
Rotate.Shift fork type pneumatic actuator of the prior art mainly includes cylinder part and shift fork drive disk assembly, and cylinder part includes
Cylinder, cylinder head, piston and piston rod, shift fork drive disk assembly includes pull-fork assembly, main shaft and casing, and main shaft and pull-fork assembly set
Put in casing, main shaft and body pivot connect, and pull-fork assembly is connected with piston rod.But existing fork type is pneumatic to be held
Row device is relatively elaborate when adjusting manually, operation inconvenience.
The content of the invention
The utility model purpose is to provide a kind of high pulling torque shift fork type pneumatic actuator, the pneumatic execution of high pulling torque fork type
Device is conducive to controlling the accurate switching between opening and closing, it is to avoid closes and opens insufficient situation, decreases
Wear-resisting loss between part, extends executing agency's service life.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of high pulling torque shift fork type pneumatic actuator,
Including casing, cylinder cavity, spring cavity and handwheel, the cylinder cavity is seal-installed on the side of casing, the bullet
Spring cavity is installed on the opposite side of casing, and the handwheel is installed on the rear side of casing, in the casing rotational circle is provided with
Cylinder, the front end of this rotor, rear end are respectively embedded into cabinet front plate, back plate each in through hole, the rotor outer surface
Front shift fork and rear shift fork are provided with before and after vertically, a connecting rod is through guide pad and connecting rod two ends are respectively embedded into described front group
In fork and the respective guide groove of rear shift fork, this connecting rod can revolve by one with front shift fork and the respective guide groove of rear shift fork around connecting rod
The guide copper sleeve connection for turning a, slide bar through guide pad and is installed on casing in left-right direction；
The rear shift fork both sides are symmetrically provided with left hand projection portion, right side lug boss, and this left hand projection portion, right side are raised
Portion each upper surface be in 90 °, be provided with the casing respectively with left hand projection portion, the left block of right side raised portion fits, the right side
Block, when after shift fork be in first state when, left hand projection portion contact with left block, when rear shift fork in the second state when
Wait, right side lug boss is contacted with right block；
The cylinder cavity further includes circular shell, be seal-installed on circular shell both sides left end cap, right end cap,
Circular piston plate in circular shell, is fixed, the circle between the left end cap, right end cap by least 3 stud bars
Air inlet is provided with shape housing, a piston rod one end is fixed on circular piston plate, in the embedded casing of the piston rod other end simultaneously
It is connected with guide pad；
The spring cavity further includes cylindrical shell, spring, spring lever and spring guide block, the cylindrical shell
One end opposite with casing is provided with end cap, and the spring is located in circular cylindrical shell body, and this spring one end is contacted with end cap, another
End is provided with the spring guide block, and this spring guide block one end opposite with spring is connected to described spring lever one end, this spring lever
It is connected in the embedded casing of the other end and with guide pad, this guide pad is located between spring lever and piston rod；
The circular piston plate circumferential flank surface is parallel to offer the first groove, the second groove, the first groove, the second groove
It is respectively arranged with star-like sealing ring, O-ring seal and circular shell to be tightly connected.
Further improved scheme is as follows in above-mentioned technical proposal：
1. in such scheme, the rotor is connected with casing by copper sheathing ring.
2. in such scheme, the stud bar number is 4, is circumferentially arranged at equal intervals.
3. in such scheme, the guide copper sleeve is square guide copper sleeve.
4. in such scheme, the slide bar outer surface is set with a horizontal copper sleeve.
Because above-mentioned technical proposal is used, the utility model has compared with prior art following advantages and effect：
1. the utility model high pulling torque shift fork type pneumatic actuator, thereafter shift fork both sides be symmetrically provided with left hand projection
Portion, right side lug boss, this left hand projection portion, right side lug boss each upper surface be in 90 °, be provided with the casing respectively with a left side
Side lug boss, the left block of right side raised portion fits, right block, when after shift fork be in first state when, left hand projection portion with
The contact of left block, when after shift fork be in the second state when, right side lug boss is contacted with right block；Control is conducive to open and close
Accurate switching between closing, it is to avoid close and open insufficient situation, decrease the wear-resisting loss between part, prolong
Chang Liao executing agencies service life；Secondly, connecting rod can be around connecting rod by one with front shift fork and the respective guide groove of rear shift fork
The guide copper sleeve connection of rotation, rotor is connected with casing by copper sheathing ring, and slide bar outer surface is set with a horizontal copper sleeve,
Meet the needs of high pulling torque transmission, improve piston rod and pull-fork assembly motion reliability, transmission efficiency, do not increase the shift fork arm of force
In the case of length, the output of high pulling torque is realized.
2. the utility model high pulling torque shift fork type pneumatic actuator, circular piston plate circumferential flank surface is parallel offers for its
First groove, the second groove, the first groove, that the second groove is respectively arranged with star-like sealing ring, O-ring seal and circular shell is close
Envelope connection, good sealing effect, it is not easy to wear and tear, it is to avoid leakage problem, maintenance is more convenient, and operating efficiency is greatly improved.
Description of the drawings
Accompanying drawing 1 is the utility model high pulling torque shift fork type pneumatic actuator structural representation；
Accompanying drawing 2 is the utility model high pulling torque shift fork type pneumatic actuator partial structural diagram one；
Accompanying drawing 3 is the utility model high pulling torque shift fork type pneumatic actuator partial structural diagram two；
Accompanying drawing 4 is the utility model high pulling torque shift fork type pneumatic actuator partial structural diagram three；
Accompanying drawing 5 is the utility model high pulling torque shift fork type pneumatic actuator partial structural diagram four；
Accompanying drawing 6 is the utility model high pulling torque shift fork type pneumatic actuator partial structural diagram five；
Accompanying drawing 7 is the utility model high pulling torque shift fork type pneumatic actuator partial structural diagram six.
In the figures above：1st, casing；2nd, cylinder cavity；3rd, spring cavity；4th, rotor；5th, front shift fork；6th, rear shift fork；
7th, connecting rod；8th, guide pad；9th, guide groove；10th, guide copper sleeve；11st, slide bar；12nd, circular shell；13rd, left end cap；14th, right end cap；
15th, circular piston plate；16th, stud bar；17th, piston rod；18th, copper sheathing ring；191st, left hand projection portion；192nd, right side lug boss；
201st, left block；202nd, right block；21st, horizontal copper sleeve；22nd, the first groove；23rd, the second groove；24th, star-like sealing ring；25、
O-ring seal；26th, handwheel；31st, cylindrical shell；32nd, spring；33rd, spring lever；34th, spring guide block；35th, end cap.
Specific embodiment
The utility model is further described with reference to embodiment：
Embodiment 1：A kind of high pulling torque shift fork type pneumatic actuator, including casing 1, cylinder cavity 2, spring cavity 3 and hand
Wheel mechanism 26, the cylinder cavity 2 is seal-installed on the side of casing 1, and the spring cavity 3 is installed on the opposite side of casing 1,
The handwheel 26 is installed in the rear side of casing 1, the casing 1 and is provided with rotor 4, the front end of this rotor 4,
Rear end is respectively embedded into the header board of casing 1, back plate each in through hole, before the outer surface of the rotor 4 is provided with before and after vertically
Shift fork 5 and rear shift fork 6, a connecting rod 7 is through guide pad 8 and the two ends of connecting rod 7 are respectively embedded into the front shift fork 5 and rear shift fork 6
In respective guide groove 9, this connecting rod 7 can be around the rotation of connecting rod 7 by one with front shift fork 5 and the respective guide groove 9 of rear shift fork 6
Guide copper sleeve 10 connects, and a slide bar 11 through guide pad 8 and is installed on casing 1 in left-right direction；
The both sides of rear shift fork 6 are symmetrically provided with left hand projection portion 191, right side lug boss 192, this left hand projection portion
191st, the respective upper surface of right side lug boss 192 is provided with convex with left hand projection portion 191, right side respectively in 90 ° in the casing 1
Play left block 201, right block 202 that portion 192 coordinates, when after shift fork 6 be in first state when, left hand projection portion 191 with it is left
Block 201 is contacted, when after shift fork 6 be in the second state when, right side lug boss 192 is contacted with right block 202；
The cylinder cavity 2 further includes circular shell 12, be seal-installed on the both sides of circular shell 12 left end cap 13,
Right end cap 14, the circular piston plate 15 in circular shell 12, pass through at least 3 between the left end cap 13, right end cap 14
Stud bar 16 is fixed, and air inlet is provided with the circular shell 12, and the one end of a piston rod 17 is fixed on circular piston plate 15,
It is connected in the embedded casing 1 of the other end of piston rod 17 and with guide pad 8；
The spring cavity 3 further includes cylindrical shell 31, spring 32, spring lever 33 and spring guide block 34, described
The one end opposite with casing 1 of cylindrical shell 31 is provided with end cap 35, and the spring 32 is located in cylindrical shell 31, this spring
32 one end contact with end cap 35, and the other end is provided with the spring guide block 34, this spring guide block 34 one end opposite with spring 32
The one end of the spring lever 33 is connected to, the embedded casing 1 of this other end of spring lever 33 is interior and is connected with guide pad 8, this guide pad 8
Between spring lever 33 and piston rod 17；
The circumferential flank surface of circular piston plate 15 is parallel to offer the first groove 22, the second groove 23, the first groove 22,
Second groove 23 is respectively arranged with star-like sealing ring 24, O-ring seal 25 and is tightly connected with circular shell 12.
Above-mentioned rotor 4 is connected with casing 1 by copper sheathing ring 18.
The outer surface of above-mentioned slide bar 11 is set with a horizontal copper sleeve 21.
Embodiment 2：A kind of high pulling torque shift fork type pneumatic actuator, including casing 1, cylinder cavity 2, spring cavity 3 and hand
Wheel mechanism 26, the cylinder cavity 2 is seal-installed on the side of casing 1, and the spring cavity 3 is installed on the opposite side of casing 1,
The handwheel 26 is installed in the rear side of casing 1, the casing 1 and is provided with rotor 4, the front end of this rotor 4,
Rear end is respectively embedded into the header board of casing 1, back plate each in through hole, before the outer surface of the rotor 4 is provided with before and after vertically
Shift fork 5 and rear shift fork 6, a connecting rod 7 is through guide pad 8 and the two ends of connecting rod 7 are respectively embedded into the front shift fork 5 and rear shift fork 6
In respective guide groove 9, this connecting rod 7 can be around the rotation of connecting rod 7 by one with front shift fork 5 and the respective guide groove 9 of rear shift fork 6
Guide copper sleeve 10 connects, and a slide bar 11 through guide pad 8 and is installed on casing 1 in left-right direction；
The both sides of rear shift fork 6 are symmetrically provided with left hand projection portion 191, right side lug boss 192, this left hand projection portion
191st, the respective upper surface of right side lug boss 192 is provided with convex with left hand projection portion 191, right side respectively in 90 ° in the casing 1
Play left block 201, right block 202 that portion 192 coordinates, when after shift fork 6 be in first state when, left hand projection portion 191 with it is left
Block 201 is contacted, when after shift fork 6 be in the second state when, right side lug boss 192 is contacted with right block 202；
The cylinder cavity 2 further includes circular shell 12, be seal-installed on the both sides of circular shell 12 left end cap 13,
Right end cap 14, the circular piston plate 15 in circular shell 12, pass through at least 3 between the left end cap 13, right end cap 14
Stud bar 16 is fixed, and air inlet is provided with the circular shell 12, and the one end of a piston rod 17 is fixed on circular piston plate 15,
It is connected in the embedded casing 1 of the other end of piston rod 17 and with guide pad 8；
The spring cavity 3 further includes cylindrical shell 31, spring 32, spring lever 33 and spring guide block 34, described
The one end opposite with casing 1 of cylindrical shell 31 is provided with end cap 35, and the spring 32 is located in cylindrical shell 31, this spring
32 one end contact with end cap 35, and the other end is provided with the spring guide block 34, this spring guide block 34 one end opposite with spring 32
The one end of the spring lever 33 is connected to, the embedded casing 1 of this other end of spring lever 33 is interior and is connected with guide pad 8, this guide pad 8
Between spring lever 33 and piston rod 17；
The circumferential flank surface of circular piston plate 15 is parallel to offer the first groove 22, the second groove 23, the first groove 22,
Second groove 23 is respectively arranged with star-like sealing ring 24, O-ring seal 25 and is tightly connected with circular shell 12.
The above-mentioned number of stud bar 16 is 4, is circumferentially arranged at equal intervals.
Above-mentioned guide copper sleeve 10 is square guide copper sleeve.
During using above-mentioned high pulling torque shift fork type pneumatic actuator, thereafter shift fork both sides be symmetrically provided with left hand projection portion,
Right side lug boss, this left hand projection portion, right side lug boss each upper surface be in 90 °, be provided with the casing respectively with left side
Lug boss, the left block of right side raised portion fits, right block, when after shift fork be in first state when, left hand projection portion with it is left
Block contact, when after shift fork be in the second state when, right side lug boss is contacted with right block；Control is conducive to open and close
Between accurate switching, it is to avoid close and open insufficient situation, decrease the wear-resisting loss between part, extend
Executing agency service life；Secondly, connecting rod can revolve by one with front shift fork and the respective guide groove of rear shift fork around connecting rod
The guide copper sleeve connection for turning, rotor is connected with casing by copper sheathing ring, and slide bar outer surface is set with a horizontal copper sleeve, full
The needs of sufficient high pulling torque transmission, improve piston rod and pull-fork assembly motion reliability, transmission efficiency, and not increasing, the shift fork arm of force is long
In the case of degree, the output of high pulling torque is realized；Again, its circular piston plate circumferential flank surface it is parallel offer the first groove,
Two grooves, the first groove, the second groove are respectively arranged with star-like sealing ring, O-ring seal and circular shell and are tightly connected, sealing
Effect is good, it is not easy to wear and tear, it is to avoid leakage problem, and maintenance is more convenient, and operating efficiency is greatly improved.
Above-described embodiment only to illustrate technology design of the present utility model and feature, its object is to allow and be familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalence changes made according to the utility model Spirit Essence or modification, all should cover protection domain of the present utility model it
It is interior.
Claims (1)
1. a kind of high pulling torque shift fork type pneumatic actuator, it is characterised in that：Including casing（1）, cylinder cavity（2）, spring cavity
（3）And handwheel（26）, the cylinder cavity（2）It is seal-installed on casing（1）Side, the spring cavity（3）Install
In casing（1）Opposite side, the handwheel（26）It is installed on casing（1）Rear side, the casing（1）Inside it is provided with rotation
Cylinder（4）, this rotor（4）Front end, rear end be respectively embedded into casing（1）Header board, back plate be each in through hole, the rotational circle
Cylinder（4）Outer surface is provided with front shift fork before and after vertically（5）With rear shift fork（6）, a connecting rod（7）Through guide pad（8）And
Connecting rod（7）Two ends are respectively embedded into the front shift fork（5）With rear shift fork（6）Respective guide groove（9）It is interior, this connecting rod（7）With it is front
Shift fork（5）With rear shift fork（6）Respective guide groove（9）Can be around connecting rod by one（7）The guide copper sleeve of rotation（10）Connection, one
Slide bar（11）Run through guide pad in left-right direction（8）And it is installed on casing（1）On；
The rear shift fork（6）Both sides are symmetrically provided with left hand projection portion（191）, right side lug boss（192）, this left hand projection portion
（191）, right side lug boss（192）Each upper surface is in 90 °, the casing（1）Inside be provided with respectively with left hand projection portion
（191）, right side lug boss（192）The left block for coordinating（201）, right block（202）, when after shift fork（6）In first state when
Wait, left hand projection portion（191）With left block（201）Contact, when after shift fork（6）In the second state when, right side lug boss
（192）With right block（202）Contact；
The cylinder cavity（2）Further include circular shell（12）, be seal-installed on circular shell（12）The left end cap of both sides
（13）, right end cap（14）, positioned at circular shell（12）Interior circular piston plate（15）, the left end cap（13）, right end cap（14）
Between pass through at least 3 stud bars（16）It is fixed, the circular shell（12）On be provided with air inlet, a piston rod（17）One end
It is fixed on circular piston plate（15）On, piston rod（17）The other end is embedded in casing（1）Interior and and guide pad（8）Connection；
The spring cavity（3）Further include cylindrical shell（31）, spring（32）, spring lever（33）With spring guide block
（34）, the cylindrical shell（31）With casing（1）Opposite one end is provided with end cap（35）, the spring（32）Positioned at cylinder
Shape housing（31）It is interior, this spring（32）One end and end cap（35）Contact, the other end is provided with the spring guide block（34）, this spring
Guide block（34）With spring（32）Opposite one end is connected to the spring lever（33）One end, this spring lever（33）The other end is embedded in case
Body（1）Interior and and guide pad（8）Connection, this guide pad（8）Positioned at spring lever（33）And piston rod（17）Between；
The circular piston plate（15）Circumferential flank surface is parallel to offer the first groove（22）, the second groove（23）, the first groove
（22）, the second groove（23）It is respectively arranged with star-like sealing ring（24）, O-ring seal（25）With circular shell（12）Sealing connects
Connect；The slide bar（11）Outer surface is set with a horizontal copper sleeve（21）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720245.6U CN206093153U (en) | 2016-07-11 | 2016-07-11 | Big moment of torsion shifting fork type pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720245.6U CN206093153U (en) | 2016-07-11 | 2016-07-11 | Big moment of torsion shifting fork type pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206093153U true CN206093153U (en) | 2017-04-12 |
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ID=58465494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620720245.6U Active CN206093153U (en) | 2016-07-11 | 2016-07-11 | Big moment of torsion shifting fork type pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206093153U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051285A (en) * | 2016-07-11 | 2016-10-26 | 苏州博合雅工程材料科技有限公司 | Large-torque shifting fork type pneumatic actuator |
| CN107588228A (en) * | 2017-09-26 | 2018-01-16 | 无锡福斯拓科科技有限公司 | A kind of shift fork type pneumatic actuator |
-
2016
- 2016-07-11 CN CN201620720245.6U patent/CN206093153U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051285A (en) * | 2016-07-11 | 2016-10-26 | 苏州博合雅工程材料科技有限公司 | Large-torque shifting fork type pneumatic actuator |
| CN107588228A (en) * | 2017-09-26 | 2018-01-16 | 无锡福斯拓科科技有限公司 | A kind of shift fork type pneumatic actuator |
| CN107588228B (en) * | 2017-09-26 | 2023-07-14 | 无锡福斯拓科科技有限公司 | Shifting fork type pneumatic actuator |
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