CN106051285A - Large-torque shifting fork type pneumatic actuator - Google Patents
Large-torque shifting fork type pneumatic actuator Download PDFInfo
- Publication number
- CN106051285A CN106051285A CN201610537684.8A CN201610537684A CN106051285A CN 106051285 A CN106051285 A CN 106051285A CN 201610537684 A CN201610537684 A CN 201610537684A CN 106051285 A CN106051285 A CN 106051285A
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- shift fork
- spring
- casing
- pneumatic actuator
- groove
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Classifications
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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
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
- F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The present invention discloses a large-torque shifting fork type pneumatic actuator, which comprises a housing, a cylinder cavity, a spring cavity and a hand wheel mechanism. The cylinder cavity is hermetically mounted at one side of the housing, while the spring cavity is mounted at the other side of the housing; the hand wheel mechanism is mounted at a rear side of the housing. A front shifting fork and a rear shifting fork are disposed front and back in an axial direction on an outside surface of a rotating cylinder. A left projection and a right projection are symmetrically formed at two sides of the rear shifting fork, and the respective upper surfaces of the left projection and the right projection are of 90 degrees. The spring cavity further comprises a cylindrical shell, a spring, a spring rod and a spring guide block. An end cover is mounted at the end, opposed to the housing, of the cylindrical shell. A first groove and a second groove are formed in parallel in a circumferential side surface of a circular piston plate, and provided with a star-shaped sealing ring and an O-shaped sealing ring in hermetic connection with a circular shell, respectively. The large-torque shifting fork type pneumatic actuator meets the requirement of large torque transfer, and is good in sealing effect, and not prone to wear; as a result, the actuator avoids leakage and is more convenient to repair.
Description
Technical field
The present invention relates to a kind of high pulling torque shift fork type pneumatic actuator, belong 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 drive mechanism of pneumatic actuator has pinion and-rack and fork type two kinds,
Shift fork type pneumatic actuator is for linear motion and drive shift fork to rotate by piston rod, 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 that pull-fork assembly, main shaft and casing, main shaft and pull-fork assembly set
Putting in casing, main shaft and body pivot connect, and pull-fork assembly is in transmission connection with piston rod.But existing fork type is pneumatic to be held
Row device is relatively elaborate when manually regulation, operation inconvenience.
Summary of the invention
It is an object of the present invention to provide a kind of high pulling torque shift fork type pneumatic actuator, this high pulling torque shift fork type pneumatic actuator has
It is beneficial to the accurate switching controlling between opening and closing, it is to avoid close and open insufficient situation, decreases parts
Between wear-resisting loss, extend actuator service life.
For reaching above-mentioned purpose, the technical solution used in the present invention is: a kind of high pulling torque shift fork type pneumatic actuator, including
Casing, cylinder cavity, spring cavity and handwheel, described cylinder cavity is seal-installed on the side of casing, described spring cavity
Body is installed on the opposite side of casing, and described handwheel is installed on the rear side of casing, is provided with rotor in described casing, this
The front end of rotor, rear end are respectively embedded in cabinet front plate, back plate each through hole, and described rotor outer surface is vertically
Front and back be provided with front shift fork and rear shift fork, a connecting rod runs through guide pad and connecting rod two ends be respectively embedded into described front shift fork and after
In the respective guide groove of shift fork, this connecting rod all can be around leading that connecting rod rotates by one with front shift fork and the respective guide groove of rear shift fork
Connecting to copper sheathing, a slide bar runs through guide pad in left-right direction and is installed on casing；
Being provided with left hand projection portion, right side lobe to described rear shift fork lateral symmetry, this left hand projection portion, right side lobe are each
Be 90 ° from upper surface, be provided with in described casing respectively with left hand projection portion, the left block of right side raised portion fits, right block,
Time after when, shift fork is in the first state, left hand projection portion contacts with left block, when after shift fork be in the second state time, right side
Lobe contacts with right block；
Described cylinder cavity farther includes circular shell, is seal-installed on the left end cap of circular shell both sides, right end cap, is positioned at
Circular piston plate in circular shell, is fixed by least 3 stud bars between described left end cap, right end cap, described toroidal shell
Being provided with air inlet on body, a piston rod one end is fixed on circular piston plate, the piston rod other end embed in casing and with lead
Connect to block；
Described spring cavity farther includes cylindrical shell, spring, spring lever and spring guide block, described cylindrical shell and case
The opposing one end of body is provided with end cap, and described spring is positioned at circular cylindrical shell body, and this spring one end contacts with end cap, and the other end is pacified
Equipped with described spring guide block, this spring guide block one end opposing with spring is connected to described spring lever one end, this spring lever another
In end embeds casing and being connected with guide pad, this guide pad is between spring lever and piston rod；
Parallel the first groove, the second groove of offering of described circular piston plate circumferential flank surface, the first groove, the second groove are respectively
Be provided with star-like sealing ring, O RunddichtringO is tightly connected with circular shell.
In technique scheme, further improved plan is as follows:
1., in such scheme, described rotor is connected by copper sheathing ring with casing.
2., in such scheme, described stud bar number is 4, the most circumferentially arranges.
3., in such scheme, described guide copper sleeve is square guide copper sleeve.
4., in such scheme, described slide bar outer surface is set with a horizontal copper sleeve pipe.
Owing to technique scheme is used, the present invention compared with prior art has following advantages and an effect:
High pulling torque shift fork type pneumatic actuator the most of the present invention, is provided with to shift fork lateral symmetry thereafter left hand projection portion, right side convex
Rise portion, this left hand projection portion, right side lobe each upper surface are 90 °, be provided with in described casing respectively with left hand projection portion,
Right side the left block of raised portion fits, right block, when after shift fork be in the first state time, left hand projection portion connects with left block
Touch, when after shift fork be in the second state time, right side lobe contacts with right block；Between being conducive to controlling to open and close
Accurate switching, it is to avoid close and open insufficient situation, decreasing the wear-resisting loss between parts, extend execution
Mechanism service life；Secondly, connecting rod all can be around leading that connecting rod rotates by one with front shift fork and the respective guide groove of rear shift fork
Connecting to copper sheathing, rotor is connected by copper sheathing ring with casing, and slide bar outer surface is set with a horizontal copper sleeve pipe, meets big torsion
The needs of square transmission, make piston rod and pull-fork assembly motion are reliable, transmission efficiency improves, in the feelings not increasing shift fork torque arm length
Under condition, it is achieved the output of high pulling torque.
High pulling torque shift fork type pneumatic actuator the most of the present invention, circular piston plate circumferential flank surface is parallel offers first for it
Groove, the second groove, the first groove, the second groove are respectively arranged with star-like sealing ring, O RunddichtringO seals even with circular shell
Connecing, good sealing effect, it is not easy to abrasion, it is to avoid leakage problem, keep in repair more convenient, work efficiency is greatly improved.
Accompanying drawing explanation
Accompanying drawing 1 is high pulling torque shift fork type pneumatic actuator structural representation of the present invention；
Accompanying drawing 2 is high pulling torque shift fork type pneumatic actuator partial structurtes schematic diagram one of the present invention；
Accompanying drawing 3 is high pulling torque shift fork type pneumatic actuator partial structurtes schematic diagram two of the present invention；
Accompanying drawing 4 is high pulling torque shift fork type pneumatic actuator partial structurtes schematic diagram three of the present invention；
Accompanying drawing 5 is high pulling torque shift fork type pneumatic actuator partial structurtes schematic diagram four of the present invention；
Accompanying drawing 6 is high pulling torque shift fork type pneumatic actuator partial structurtes schematic diagram five of the present invention；
Accompanying drawing 7 is high pulling torque shift fork type pneumatic actuator partial structurtes schematic diagram six of the present invention.
In the figures above: 1, casing；2, cylinder cavity；3, spring cavity；4, rotor；5, front shift fork；6, rear shift fork；
7, connecting rod；8, guide pad；9, guide groove；10, guide copper sleeve；11, slide bar；12, circular shell；13, left end cap；14, right end cap；
15, circular piston plate；16, stud bar；17, piston rod；18, copper sheathing ring；191, left hand projection portion；192, right side lobe；
201, left block；202, right block；21, horizontal copper sleeve pipe；22, the first groove；23, the second groove；24, star-like sealing ring；25、
O RunddichtringO；26, handwheel；31, cylindrical shell；32, spring；33, spring lever；34, spring guide block；35, end cap.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1: a kind of high pulling torque shift fork type pneumatic actuator, including casing 1, cylinder cavity 2, spring cavity 3 and handwheel machine
Structure 26, described cylinder cavity 2 is seal-installed on the side of casing 1, and described spring cavity 3 is installed on the opposite side of casing 1, described
Handwheel 26 is installed on the rear side of casing 1, is provided with rotor 4, the front end of this rotor 4, rear end in described casing 1
Being respectively embedded in casing 1 header board, back plate each through hole, described rotor 4 outer surface is provided with front shift fork 5 before and after vertically
With rear shift fork 6, a connecting rod 7 runs through guide pad 8 and connecting rod 7 two ends are respectively embedded into described front shift fork 5 and rear shift fork 6 is respective
In guide groove 9, this connecting rod 7 all can be around the guiding copper of connecting rod 7 rotation by one with front shift fork 5 and the respective guide groove of rear shift fork 69
Set 10 connection, a slide bar 11 runs through guide pad 8 in left-right direction and is installed on casing 1；
It is provided with left hand projection portion 191, right side lobe 192 to described rear shift fork 6 lateral symmetry, this left hand projection portion 191, the right side
The respective upper surface of side lobe 192 is 90 °, be provided with in described casing 1 respectively with left hand projection portion 191, right side lobe 192
The left block 201 that coordinates, right block 202, when after shift fork 6 be in the first state time, left hand projection portion 191 and left block 201
Contact, when after shift fork 6 be in the second state time, right side lobe 192 contacts with right block 202；
Described cylinder cavity 2 farther includes circular shell 12, is seal-installed on the left end cap 13 of circular shell 12 both sides, right-hand member
Lid 14, it is positioned at the circular piston plate 15 of circular shell 12, by least 3 studs between described left end cap 13, right end cap 14
Bar 16 is fixed, and described circular shell 12 is provided with air inlet, and piston rod 17 one end is fixed on circular piston plate 15, piston
In bar 17 other end embeds casing 1 and it is connected with guide pad 8；
Described spring cavity 3 farther includes cylindrical shell 31, spring 32, spring lever 33 and spring guide block 34, described cylinder
Shape housing 31 one end opposing with casing 1 is provided with end cap 35, and described spring 32 is positioned at cylindrical shell 31, this spring 32 1
End contacts with end cap 35, and the other end is provided with described spring guide block 34, and this spring guide block 34 one end opposing with spring 32 is connected
To described spring lever 33 one end, in this spring lever 33 other end embeds casing 1 and being connected with guide pad 8, this guide pad 8 is positioned at bullet
Between spring base 33 and piston rod 17；
Described circular piston plate 15 circumferential flank surface is parallel offers first groove the 22, second groove 23, the first groove 22, second
Groove 23 is respectively arranged with star-like sealing ring 24, O RunddichtringO 25 is tightly connected with circular shell 12.
Above-mentioned rotor 4 is connected by copper sheathing ring 18 with casing 1.
Above-mentioned slide bar 11 outer surface is set with a horizontal copper sleeve pipe 21.
Embodiment 2: a kind of high pulling torque shift fork type pneumatic actuator, including casing 1, cylinder cavity 2, spring cavity 3 and hands
Wheel mechanism 26, described cylinder cavity 2 is seal-installed on the side of casing 1, and described spring cavity 3 is installed on the opposite side of casing 1,
Described handwheel 26 is installed on the rear side of casing 1, is provided with rotor 4 in described casing 1, the front end of this rotor 4,
Rear end is respectively embedded in casing 1 header board, back plate each through hole, before described rotor 4 outer surface is provided with before and after vertically
Shift fork 5 and rear shift fork 6, a connecting rod 7 runs through guide pad 8 and connecting rod 7 two ends are respectively embedded into described front shift fork 5 and rear shift fork 6
In respective guide groove 9, this connecting rod 7 all can be around connecting rod 7 rotation by one with front shift fork 5 and the respective guide groove of rear shift fork 69
Guide copper sleeve 10 connects, and a slide bar 11 runs through guide pad 8 in left-right direction and is installed on casing 1；
It is provided with left hand projection portion 191, right side lobe 192 to described rear shift fork 6 lateral symmetry, this left hand projection portion 191, the right side
The respective upper surface of side lobe 192 is 90 °, be provided with in described casing 1 respectively with left hand projection portion 191, right side lobe 192
The left block 201 that coordinates, right block 202, when after shift fork 6 be in the first state time, left hand projection portion 191 and left block 201
Contact, when after shift fork 6 be in the second state time, right side lobe 192 contacts with right block 202；
Described cylinder cavity 2 farther includes circular shell 12, is seal-installed on the left end cap 13 of circular shell 12 both sides, right-hand member
Lid 14, it is positioned at the circular piston plate 15 of circular shell 12, by least 3 studs between described left end cap 13, right end cap 14
Bar 16 is fixed, and described circular shell 12 is provided with air inlet, and piston rod 17 one end is fixed on circular piston plate 15, piston
In bar 17 other end embeds casing 1 and it is connected with guide pad 8；
Described spring cavity 3 farther includes cylindrical shell 31, spring 32, spring lever 33 and spring guide block 34, described cylinder
Shape housing 31 one end opposing with casing 1 is provided with end cap 35, and described spring 32 is positioned at cylindrical shell 31, this spring 32 1
End contacts with end cap 35, and the other end is provided with described spring guide block 34, and this spring guide block 34 one end opposing with spring 32 is connected
To described spring lever 33 one end, in this spring lever 33 other end embeds casing 1 and being connected with guide pad 8, this guide pad 8 is positioned at bullet
Between spring base 33 and piston rod 17；
Described circular piston plate 15 circumferential flank surface is parallel offers first groove the 22, second groove 23, the first groove 22, second
Groove 23 is respectively arranged with star-like sealing ring 24, O RunddichtringO 25 is tightly connected with circular shell 12.
Above-mentioned stud bar 16 number is 4, the most circumferentially arranges.
Above-mentioned guide copper sleeve 10 is square guide copper sleeve.
When using above-mentioned high pulling torque shift fork type pneumatic actuator, be provided with to shift fork lateral symmetry thereafter left hand projection portion,
Right side lobe, this left hand projection portion, right side lobe each upper surface are 90 °, be provided with in described casing respectively with left side
Lobe, the left block of right side raised portion fits, right block, when after shift fork be in the first state time, left hand projection portion is with left
Block contact, when after shift fork be in the second state time, right side lobe contacts with right block；Be conducive to controlling to open and close
Between accurate switching, it is to avoid close and open insufficient situation, decreasing the wear-resisting loss between parts, extend
Actuator service life；Secondly, connecting rod all can be revolved around connecting rod by one with front shift fork and the respective guide groove of rear shift fork
The guide copper sleeve turned connects, and rotor is connected by copper sheathing ring with casing, and slide bar outer surface is set with a horizontal copper sleeve pipe, full
The needs of foot high pulling torque transmission, make piston rod and pull-fork assembly motion are reliable, transmission efficiency improves, and not increasing, the shift fork arm of force is long
In the case of degree, it is achieved the output of high pulling torque；Again, its circular piston plate circumferential flank surface parallel offer the first groove,
Two grooves, the first groove, the second groove are respectively arranged with star-like sealing ring, O RunddichtringO is tightly connected with circular shell, seal
Effective, it is not easy to abrasion, it is to avoid leakage problem, to keep in repair more convenient, work efficiency is greatly improved.
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not limit the scope of the invention with this.All according to the present invention
The equivalence that spirit is made changes or modifies, and all should contain within protection scope of the present invention.
Claims (5)
1. a high pulling torque shift fork type pneumatic actuator, it is characterised in that: include casing (1), cylinder cavity (2), spring cavity
And handwheel (26) (3), described cylinder cavity (2) is seal-installed on the side of casing (1), and described spring cavity (3) is installed
In the opposite side of casing (1), described handwheel (26) is installed on the rear side of casing (1), and described casing is provided with rotation in (1)
Cylinder (4), the front end of this rotor (4), rear end be respectively embedded in casing (1) header board, back plate each through hole, described rotational circle
Cylinder (4) outer surface vertically before and after be provided with front shift fork (5) and rear shift fork (6), a connecting rod (7) run through guide pad (8) and
Connecting rod (7) two ends are respectively embedded in described front shift fork (5) and rear shift fork (6) respective guide groove (9), and this connecting rod (7) is with front
Shift fork (5) and rear shift fork (6) respective guide groove (9) all can connect around the guide copper sleeve (10) that connecting rod (7) rotate by one, and one
Slide bar (11) runs through guide pad (8) in left-right direction and is installed on casing (1)；
It is provided with left hand projection portion (191), right side lobe (192), this left hand projection portion to described rear shift fork (6) lateral symmetry
(191), right side lobe (192) each upper surface be 90 °, be provided with in described casing (1) respectively with left hand projection portion
(191), right side lobe (192) coordinate left block (201), right block (202), when rear shift fork (6) is in the first state
Wait, left hand projection portion (191) contact with left block (201), when after shift fork (6) be in the second state time, right side lobe
(192) contact with right block (202)；
Described cylinder cavity (2) farther includes circular shell (12), is seal-installed on the left end cap of circular shell (12) both sides
(13), right end cap (14), it is positioned at the circular piston plate (15) of circular shell (12), described left end cap (13), right end cap (14)
Between fixed by least 3 stud bars (16), described circular shell is provided with air inlet on (12), a piston rod (17) one end
It is fixed on circular piston plate (15), in piston rod (17) other end embeds casing (1) and is connected with guide pad (8)；
Described spring cavity (3) farther includes cylindrical shell (31), spring (32), spring lever (33) and spring guide block
(34), the opposing one end of described cylindrical shell (31) and casing (1) is provided with end cap (35), and described spring (32) is positioned at cylinder
In shape housing (31), this spring (32) one end contacts with end cap (35), and the other end is provided with described spring guide block (34), this spring
The opposing one end of guide block (34) and spring (32) is connected to described spring lever (33) one end, and this spring lever (33) other end embeds case
In body (1) and being connected with guide pad (8), this guide pad (8) is positioned between spring lever (33) and piston rod (17)；
Described circular piston plate (15) circumferential flank surface is parallel offers the first groove (22), the second groove (23), the first groove
(22), the second groove (23) is respectively arranged with star-like sealing ring (24), O RunddichtringO (25) seals even with circular shell (12)
Connect.
2. according to the high pulling torque shift fork type pneumatic actuator described in claim 1, it is characterised in that: described rotor (4)
It is connected by copper sheathing ring (18) with casing (1).
3. according to the high pulling torque shift fork type pneumatic actuator described in claim 1, it is characterised in that: described stud bar (16) number
Mesh is 4, the most circumferentially arranges.
4. according to the high pulling torque shift fork type pneumatic actuator described in claim 1, it is characterised in that: described guide copper sleeve (10)
For square guide copper sleeve.
5. according to the high pulling torque shift fork type pneumatic actuator described in claim 1, it is characterised in that: described slide bar (11) appearance
Surface cover is equipped with a horizontal copper sleeve pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537684.8A CN106051285A (en) | 2016-07-11 | 2016-07-11 | Large-torque shifting fork type pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537684.8A CN106051285A (en) | 2016-07-11 | 2016-07-11 | Large-torque shifting fork type pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106051285A true CN106051285A (en) | 2016-10-26 |
Family
ID=57185979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610537684.8A Pending CN106051285A (en) | 2016-07-11 | 2016-07-11 | Large-torque shifting fork type pneumatic actuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN106051285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| US5601110A (en) * | 1995-09-11 | 1997-02-11 | Bettis Corporation | Module locking device |
| CN2811380Y (en) * | 2005-08-19 | 2006-08-30 | 河南路太工程机械有限公司 | Pneumatic actuator for asphalt spreading nozzle |
| CN101881352A (en) * | 2010-06-22 | 2010-11-10 | 季忠庸 | Pneumatic actuator |
| CN102032332A (en) * | 2010-12-31 | 2011-04-27 | 南京航空航天大学 | Electro-hydraulic liquid composite driving mechanism adapting to narrow bent space as well as control system and method |
| 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 |
| CN206093153U (en) * | 2016-07-11 | 2017-04-12 | 苏州博合雅工程材料科技有限公司 | Big moment of torsion shifting fork type pneumatic actuator |
-
2016
- 2016-07-11 CN CN201610537684.8A patent/CN106051285A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5601110A (en) * | 1995-09-11 | 1997-02-11 | Bettis Corporation | Module locking device |
| CN2811380Y (en) * | 2005-08-19 | 2006-08-30 | 河南路太工程机械有限公司 | Pneumatic actuator for asphalt spreading nozzle |
| CN101881352A (en) * | 2010-06-22 | 2010-11-10 | 季忠庸 | Pneumatic actuator |
| CN102032332A (en) * | 2010-12-31 | 2011-04-27 | 南京航空航天大学 | Electro-hydraulic liquid composite driving mechanism adapting to narrow bent space as well as control system and method |
| 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 |
| CN206093153U (en) * | 2016-07-11 | 2017-04-12 | 苏州博合雅工程材料科技有限公司 | Big moment of torsion shifting fork type pneumatic actuator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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