CN105952956A - Double-acting poking fork type pneumatic actuation mechanism - Google Patents
Double-acting poking fork type pneumatic actuation mechanism Download PDFInfo
- Publication number
- CN105952956A CN105952956A CN201610538086.2A CN201610538086A CN105952956A CN 105952956 A CN105952956 A CN 105952956A CN 201610538086 A CN201610538086 A CN 201610538086A CN 105952956 A CN105952956 A CN 105952956A
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- China
- Prior art keywords
- shift fork
- casing
- type pneumatic
- groove
- circular shell
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- 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.)
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Classifications
-
- 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
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
-
- 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
- F16K31/44—Mechanical actuating means
Abstract
The invention discloses a double-acting poking fork type pneumatic actuation mechanism. The mechanism comprises a box body, a cylinder cavity and a spring cavity; the cylinder cavity is sealed and mounted on one side of the box body; the spring cavity is mounted on the other side of the box body; a rotating cylinder is arranged in the box body; a left side projection part and a right side projection part are symmetrically arranged on two sides of a back poking fork; the respective upper surfaces of the left side projection part and the right side projection part are 90 degrees; a left stopper and a right stopper respectively matched with the left side projection part and the right side projection part are arranged in the box body; when the back poking fork is located in a first state, the left side projection part is contacted with the left stopper; when the back poking fork is located in a second state, the right side projection part is contacted with the right stopper; and the cylinder cavity further includes a circular shell, a left end cover and a right end cover sealed and mounted on two sides of the circular shell, and a circular piston plate positioned in the circular shell. The mechanism facilitates control of precise switching of opening and closing, prevents incomplete closing and opening conditions, reduces the wear loss among parts, and prolongs the service life.
Description
Technical field
The present invention relates to a kind of double acting 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 switch cutoff or the measure control of the valve (such as ball valve, butterfly valve, plug valve) of 90 ° of corners.The drive mechanism of pneumatic actuator has pinion and-rack and fork type two kinds, and 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 to rotate.Shift fork type pneumatic actuator of the prior art mainly includes cylinder part and shift fork drive disk assembly, cylinder part includes cylinder, cylinder head, piston and piston rod, shift fork drive disk assembly includes pull-fork assembly, main shaft and casing, main shaft and pull-fork assembly are arranged in casing, main shaft and body pivot connect, and pull-fork assembly is in transmission connection with piston rod.But existing shift fork type pneumatic actuator 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 double acting fork type pneumatic actuator, this double acting fork type pneumatic actuator is conducive to the accurate switching controlling between opening and closing, avoid closedown and open insufficient situation, decrease the wear-resisting loss between parts, extend actuator service life.
nullFor reaching above-mentioned purpose，The technical solution used in the present invention is: a kind of double acting fork type pneumatic actuator，Including casing、Cylinder cavity and spring cavity，Described cylinder cavity is seal-installed on the side of casing，Described spring cavity is installed on the opposite side of casing，It is provided with rotor in described casing，The front end of this rotor、Rear end is respectively embedded into cabinet front plate、In back plate each through hole，Described rotor outer surface is provided with front shift fork and rear shift fork before and after vertically，One connecting rod runs through guide pad and connecting rod two ends are respectively embedded in described front shift fork and the respective guide groove of rear shift fork，This connecting rod all can be connected around the guide copper sleeve that connecting rod rotates by one with front shift fork and the respective guide groove of rear shift fork，One slide bar runs through guide pad in left-right direction and is installed on casing，It is provided with left hand projection portion to described rear shift fork lateral symmetry、Right side lobe，This left hand projection portion、Right side lobe each upper surface is 90 °，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，Time after when, shift fork is in the second state，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 the circular piston plate of circular shell, fixed by least 3 stud bars between described left end cap, right end cap, it is provided with air inlet on described circular shell, one piston rod one end is fixed on circular piston plate, in the piston rod other end embeds casing and is connected with guide pad；
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 arranged 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:
Double acting fork type pneumatic actuator the most of the present invention, thereafter left hand projection portion, right side lobe shift fork lateral symmetry it are provided with, 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, 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；Be conducive to the accurate switching controlling between opening and closing, it is to avoid close and open insufficient situation, decrease the wear-resisting loss between parts, extend actuator service life；Secondly, connecting rod all can be connected around the guide copper sleeve that connecting rod rotates by one with front shift fork and the respective guide groove of rear shift fork, rotor is connected by copper sheathing ring with casing, slide bar outer surface is set with a horizontal copper sleeve pipe, meet the needs of high pulling torque transmission, make piston rod and pull-fork assembly motion is reliable, transmission efficiency improves, in the case of not increasing shift fork torque arm length, it is achieved the output of high pulling torque.
Double acting fork type pneumatic actuator the most of the present invention, its circular piston plate circumferential flank surface is parallel offers the first groove, the second groove, first groove, the second groove are respectively arranged with star-like sealing ring, O RunddichtringO is tightly connected with circular shell, good sealing effect, it is not easy abrasion, avoiding leakage problem, keep in repair more convenient, work efficiency is greatly improved.
Accompanying drawing explanation
Accompanying drawing 1 is double acting fork type pneumatic actuator structural representation of the present invention；
Accompanying drawing 2 is double acting fork type pneumatic actuator partial structurtes schematic diagram one of the present invention；
Accompanying drawing 3 is double acting fork type pneumatic actuator partial structurtes schematic diagram two of the present invention；
Accompanying drawing 4 is double acting fork type pneumatic actuator partial structurtes schematic diagram three of the present invention；
Accompanying drawing 5 is double acting fork type pneumatic actuator partial structurtes schematic diagram four 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.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
nullEmbodiment 1: a kind of double acting fork type pneumatic actuator，Including casing 1、Cylinder cavity 2 and spring cavity 3，Described cylinder cavity 2 is seal-installed on the side of casing 1，Described spring cavity 3 is installed on the opposite side of casing 1，It is provided with rotor 4 in described casing 1，The front end of this rotor 4、Rear end is respectively embedded into casing 1 header board、In back plate each through hole，Described rotor 4 outer surface is provided with front shift fork 5 and rear shift fork 6 before and after vertically，One connecting rod 7 runs through guide pad 8 and connecting rod 7 two ends are respectively embedded in described front shift fork 5 and the respective guide groove of rear shift fork 69，This connecting rod 7 all can be connected around the guide copper sleeve 10 that connecting rod 7 rotates by one with front shift fork 5 and the respective guide groove of rear shift fork 69，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 to described rear shift fork 6 lateral symmetry、Right side lobe 192，This left hand projection portion 191、The right side respective upper surface of lobe 192 is 90 °，Be provided with in described casing 1 respectively with left hand projection portion 191、The left block 201 that right side lobe 192 coordinates、Right block 202，Time after when, shift fork 6 is in the first state，Left hand projection portion 191 contacts with left block 201，Time after when, shift fork 6 is in the second state，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 end cap 14, is positioned at the circular piston plate 15 of circular shell 12, fixed by least 3 stud bars 16 between described left end cap 13, right end cap 14, it is provided with air inlet on described circular shell 12, one piston rod 17 one end is fixed on circular piston plate 15, in piston rod 17 other end embeds casing 1 and is connected with guide pad 8；
Parallel first groove the 22, second groove 23 that offers of described circular piston plate 15 circumferential flank surface, first groove the 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.
nullEmbodiment 2: a kind of double acting fork type pneumatic actuator，Including casing 1、Cylinder cavity 2 and spring cavity 3，Described cylinder cavity 2 is seal-installed on the side of casing 1，Described spring cavity 3 is installed on the opposite side of casing 1，It is provided with rotor 4 in described casing 1，The front end of this rotor 4、Rear end is respectively embedded into casing 1 header board、In back plate each through hole，Described rotor 4 outer surface is provided with front shift fork 5 and rear shift fork 6 before and after vertically，One connecting rod 7 runs through guide pad 8 and connecting rod 7 two ends are respectively embedded in described front shift fork 5 and the respective guide groove of rear shift fork 69，This connecting rod 7 all can be connected around the guide copper sleeve 10 that connecting rod 7 rotates by one with front shift fork 5 and the respective guide groove of rear shift fork 69，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 to described rear shift fork 6 lateral symmetry、Right side lobe 192，This left hand projection portion 191、The right side respective upper surface of lobe 192 is 90 °，Be provided with in described casing 1 respectively with left hand projection portion 191、The left block 201 that right side lobe 192 coordinates、Right block 202，Time after when, shift fork 6 is in the first state，Left hand projection portion 191 contacts with left block 201，Time after when, shift fork 6 is in the second state，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 end cap 14, is positioned at the circular piston plate 15 of circular shell 12, fixed by least 3 stud bars 16 between described left end cap 13, right end cap 14, it is provided with air inlet on described circular shell 12, one piston rod 17 one end is fixed on circular piston plate 15, in piston rod 17 other end embeds casing 1 and is connected with guide pad 8；
Parallel first groove the 22, second groove 23 that offers of described circular piston plate 15 circumferential flank surface, first groove the 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 double acting fork type pneumatic actuator, thereafter left hand projection portion, right side lobe shift fork lateral symmetry it are provided with, 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, 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；Be conducive to the accurate switching controlling between opening and closing, it is to avoid close and open insufficient situation, decrease the wear-resisting loss between parts, extend actuator service life；Secondly, connecting rod all can be connected around the guide copper sleeve that connecting rod rotates by one with front shift fork and the respective guide groove of rear shift fork, rotor is connected by copper sheathing ring with casing, slide bar outer surface is set with a horizontal copper sleeve pipe, meet the needs of high pulling torque transmission, make piston rod and pull-fork assembly motion is reliable, transmission efficiency improves, in the case of not increasing shift fork torque arm length, it is achieved the output of high pulling torque；Secondly, its circular piston plate circumferential flank surface is parallel offers the first groove, the second groove, first groove, the second groove are respectively arranged with star-like sealing ring, O RunddichtringO is tightly connected with circular shell, good sealing effect, it is not easy abrasion, avoiding leakage problem, keep in repair more convenient, work efficiency is greatly improved.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (5)
- null1. a double acting fork type pneumatic actuator，It is characterized in that: include casing (1)、Cylinder cavity (2) and spring cavity (3)，Described cylinder cavity (2) is seal-installed on the side of casing (1)，Described spring cavity (3) is installed on the opposite side of casing (1)，Rotor (4) it is provided with in described casing (1)，The front end of this rotor (4)、Rear end is respectively embedded into casing (1) header board、In back plate each through hole，Described rotor (4) outer surface is provided with front shift fork (5) and rear shift fork (6) before and after vertically，One connecting rod (7) runs 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)，This connecting rod (7) all can be connected around the guide copper sleeve (10) that connecting rod (7) rotate by one with front shift fork (5) and rear shift fork (6) respective guide groove (9)，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) to described rear shift fork (6) lateral symmetry、Right side lobe (192)，This left hand projection portion (191)、Right side lobe (192) each upper surface is 90 °，Be provided with in described casing (1) respectively with left hand projection portion (191)、The left block (201) that right side lobe (192) coordinates、Right block (202)，Time after when, shift fork (6) is in the first state，Left hand projection portion (191) contacts with left block (201)，Time after when, shift fork (6) is in the second state，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 end cap (14), is positioned at the circular piston plate (15) of circular shell (12), fixed by least 3 stud bars (16) between described left end cap (13), right end cap (14), described circular shell is provided with air inlet on (12), one piston rod (17) one end is fixed on circular piston plate (15), in piston rod (17) other end embeds casing (1) and is connected with guide pad (8)；Parallel the first groove (22), the second groove (23) of offering of described circular piston plate (15) circumferential flank surface, the first groove (22), the second groove (23) are respectively arranged with star-like sealing ring (24), O RunddichtringO (25) is tightly connected with circular shell (12).
- 2. according to the double acting fork type pneumatic actuator described in claim 1, it is characterised in that: described rotor (4) is connected by copper sheathing ring (18) with casing (1).
- 3. according to the double acting fork type pneumatic actuator described in claim 1, it is characterised in that: described stud bar (16) number is 4, the most circumferentially arranges.
- 4. according to the double acting fork type pneumatic actuator described in claim 1, it is characterised in that: described slide bar (11) outer surface is set with a horizontal copper sleeve pipe (21).
- 5. according to the double acting fork type pneumatic actuator described in claim 1, it is characterised in that: described guide copper sleeve (10) is square guide copper sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538086.2A CN105952956A (en) | 2016-07-11 | 2016-07-11 | Double-acting poking fork type pneumatic actuation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538086.2A CN105952956A (en) | 2016-07-11 | 2016-07-11 | Double-acting poking fork type pneumatic actuation mechanism |
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| Publication Number | Publication Date |
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| CN105952956A true CN105952956A (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610538086.2A Pending CN105952956A (en) | 2016-07-11 | 2016-07-11 | Double-acting poking fork type pneumatic actuation mechanism |
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| CN (1) | CN105952956A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489810A (en) * | 2017-09-13 | 2017-12-19 | 无锡市诚天诺执行器制造有限公司 | A kind of pneumatic actuator high intensity shifting fork device and preparation method thereof |
| 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 |
| CN101881352A (en) * | 2010-06-22 | 2010-11-10 | 季忠庸 | Pneumatic actuator |
| CN201827498U (en) * | 2010-10-28 | 2011-05-11 | 浙江博恩自控阀门有限公司 | Shifting fork type actuator |
| CN204477455U (en) * | 2015-02-10 | 2015-07-15 | 浙江康赛特阀门有限公司 | Hydraulically controlled pneumatic final controlling element |
| 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 |
| CN206093150U (en) * | 2016-07-11 | 2017-04-12 | 苏州博合雅工程材料科技有限公司 | Two effect shifting fork type pneumatic actuator |
-
2016
- 2016-07-11 CN CN201610538086.2A patent/CN105952956A/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 |
| CN101881352A (en) * | 2010-06-22 | 2010-11-10 | 季忠庸 | Pneumatic actuator |
| CN201827498U (en) * | 2010-10-28 | 2011-05-11 | 浙江博恩自控阀门有限公司 | Shifting fork type actuator |
| CN204477455U (en) * | 2015-02-10 | 2015-07-15 | 浙江康赛特阀门有限公司 | Hydraulically controlled pneumatic final controlling element |
| 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 |
| CN206093150U (en) * | 2016-07-11 | 2017-04-12 | 苏州博合雅工程材料科技有限公司 | Two effect shifting fork type pneumatic actuator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489810A (en) * | 2017-09-13 | 2017-12-19 | 无锡市诚天诺执行器制造有限公司 | A kind of pneumatic actuator high intensity shifting fork device and preparation method thereof |
| 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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Application publication date: 20160921 |