CN209100748U - A kind of wear-resisting pneumatic actuator - Google Patents
A kind of wear-resisting pneumatic actuator Download PDFInfo
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- CN209100748U CN209100748U CN201821515420.3U CN201821515420U CN209100748U CN 209100748 U CN209100748 U CN 209100748U CN 201821515420 U CN201821515420 U CN 201821515420U CN 209100748 U CN209100748 U CN 209100748U
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Abstract
The utility model discloses a kind of wear-resisting pneumatic actuators, it includes cylinder, piston rod and drive case；The both ends of the piston rod are connect with cylinder and drive case respectively；The piston rod makees horizontal reciprocating movement under the pneumatic actuation of cylinder, by the power output of cylinder to drive case；Shifting fork mechanism is equipped in the drive case, shifting fork mechanism is connect with piston rod, the horizontal reciprocating movement of piston rod is converted into spinning movement output, the wear-resisting pneumatic actuator, by the structure matching design using cylinder and shifting fork mechanism, solve the problems, such as existing lock slag valve switch due to by shock loading greatly caused by shift fork sliding slot in transmission mechanism occur local dent, roll sleeve outer circle microdeformation, pin shaft stress accidentally increases severely occur bending and deformation even be broken, piston rods bend.
Description
Technical field
The utility model relates to coal gas valve fields, especially a kind of to switch double-acting wear-resisting gas for lock slag valve
Dynamic actuator.
Background technique
During the lock slag valve pneumatic actuator in existing coal gas field uses, the solid dielectric attribute of cinder is mixed,
When determining the operation of valve, there is greater impact characteristic, especially valve to close, cinder is directly pressed to valve seat by valve ball
And squeeze disintegrating slag block and form impact, recoil strength is transferred to pneumatic actuator, causes very to the transmission shifting fork mechanism of pneumatic actuator
Big shock loading, it is easy to the shift fork sliding slot in transmission mechanism be caused local dent, roll sleeve outer circle microdeformation, pin shaft occur
Stress accidentally increases severely even fracture, the piston rods bend etc. of occuring bending and deformation.
Utility model content
The goal of the invention of the utility model is: in view of the above problems, providing a kind of wear-resisting pneumatic actuator, leads to
The structure matching design using cylinder and not shifting fork mechanism is crossed, solves existing lock slag valve switch due to being led greatly by shock loading
Shift fork sliding slot in the transmission mechanism of cause occur local dent, roll sleeve outer circle microdeformation, pin shaft stress accidentally increase severely occur it is curved
The problem of song deformation or even fracture, piston rods bend.
The technical solution adopted in the utility model is as follows:
The wear-resisting pneumatic actuator of the utility model, it includes cylinder, piston rod and drive case；The two of the piston rod
End is connect with cylinder and drive case respectively；The piston rod makees horizontal reciprocating movement under the pneumatic actuation of cylinder, by cylinder
Power output to drive case；Shifting fork mechanism is equipped in the drive case, shifting fork mechanism is connect with piston rod, by piston rod
It is horizontal reciprocating movement be converted to spinning movement output.
Further, the shifting fork mechanism is arranged by upper and lower two shifting fork piece at U-shaped mechanism, and two shifting fork pieces are located at
Piston rod two and is connect with piston rod by pin shaft up and down；The axis of the piston rod is equipped with a pin shaft hole, pin shaft
Both ends pass through sliding block across pin shaft hole respectively and connect with the shifting fork piece of piston rod two sides；It is correspondingly provided with sliding slot on the shifting fork piece,
Sliding block can reciprocatingly slide in sliding slot under the active force of pin shaft.
Further, it is interference fitted between the pin shaft and pin shaft hole.
Further, stiff dough wear-resistant coating is coated on the acting surface of the sliding slot and sliding block.
Further, on the same axis of the sliding slot, the driving end of the shifting fork piece is equipped with a mounting hole, uses
It is installed in drive shaft；The drive shaft and mounting hole are keyed, and one end of drive shaft is stretched out outside drive case to be connect simultaneously with valve body
The opening and closing of application valve body.
Further, the drive shaft is connect by rolling bearing with drive case, and rolling bearing is by bearing block and drives
Dynamic cabinet connection.
Further, the cylinder includes cylinder body, and the cylinder body is tubbiness, and both ends connect with partition and end cap seal respectively
It connects, the air inlet and exhaust outlet of corresponding compressed gas, the pneumatic control for cylinder is respectively equipped on partition and end cap；It is described
Piston is equipped in cylinder body, cylinder is divided into two gas held cavitys by piston；One end of the piston rod is protruded into across partition
It is connect in cylinder with piston, the other end protrudes into piston rod cover through drive case；The piston rod is by sliding bearing and drives
Dynamic cabinet connection, piston rod cover are fixedly mounted on the lateral wall of drive case.
Further, connection is tensed by several pull rods between the partition and end cap；The pull rod is along the outer of cylinder body
Side wall is evenly arranged.
Further, the annular outer side wall of the piston is equipped with an annular groove, is equipped with sealing ring in groove；It is described
The inner sidewall of sealing ring and cylinder body is squeezed at certain pretightning force and is installed, and the inner sidewall of the annular outer wall of piston and cylinder body is between certain
Gap installation.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1, the sliding slot face of shift fork and sliding block working face are face contact and spray hard material, and contact area is big, contact is answered
Power is small, hardness is high, strong wear-resisting.
2, pin shaft and piston rod are interference fit, are clearance fit (mating surface sprays hard material) with sliding block, relatively
Friction of motion face contact area is big, contact stress is small, hardness is high, strong wear-resisting.
3, drive shaft is rolling bearing bearing up and down, and frictional force is small, transmission efficiency is high, wearability is good.
4, drive mechanism is simple, compact, the bearing span that horizontally slips is small, and diameter of piston rod is big, and rigidity is big, anti-external impact
Load-carrying ability is strong；Piston rod cantilever end is rigidly good, piston and cylinder friction are small, transmission efficiency is high.
Detailed description of the invention
Fig. 1 is the structure diagram of the wear-resisting pneumatic actuator of the utility model；
Fig. 2 is the cross section view of B-B in Fig. 1；
Fig. 3 is partial enlarged view at A in Fig. 1.
Marked in the figure: 1- cylinder, 11- cylinder body, 12- partition, 13- end cap, 14- piston, 15- pull rod, 16- sealing ring, 2-
Piston rod, 21- pin shaft hole, 3- drive case, 31- horizontal through hole, 4- shifting fork mechanism, 41- shifting fork piece, 42- sliding slot, 43- sliding block,
44- pin shaft, 45- drive end, 46- key, 5- piston rod cover, 6- drive shaft.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1 to Figure 3, a kind of wear-resisting pneumatic actuator, it includes cylinder 1, piston rod 2 and drive case；It is described
The both ends of piston rod 2 are connect with cylinder 1 and drive case respectively；The piston rod 2 is made horizontal past under the pneumatic actuation of cylinder 1
Multiple movement, by the power output of cylinder 1 to drive case；Shifting fork mechanism 4, shifting fork mechanism 4 and work are equipped in the drive case
Stopper rod 2 connects, and the horizontal reciprocating movement of piston rod 2 is converted to spinning movement output.Drive shaft 6 passes through rolling bearing and driving
Cabinet connection, rolling bearing are connect by bearing block with drive case.
Cylinder 1 includes cylinder body 11, and the cylinder body 11 is tubular, and both ends are tightly connected with partition 12 and end cap 13 respectively,
The air inlet and exhaust outlet of corresponding compressed gas, the pneumatic control for cylinder 1 are respectively equipped on partition 12 and end cap 13；Institute
It states and is equipped with piston 14 in cylinder body 11, cylinder 1 is divided into two gas held cavitys by piston 14；It wears one end of the piston rod 2
It crosses partition 12 and protrudes into cylinder 1 and connect with piston 14, the other end runs through drive case and protrudes into piston rod cover 5；The piston rod 2
It is connect by sliding bearing with drive case, piston rod cover 5 is fixedly mounted on the lateral wall of drive case.Partition 12 and end cap
Connection is tensed by several pull rods 15 between 13；The pull rod 15 is evenly arranged along the lateral wall of cylinder body 11.The annular of piston 14
Lateral wall is equipped with an annular groove, is equipped with sealing ring 16 in groove；The inner sidewall of the sealing ring 16 and cylinder body 11 is at certain
Pretightning force squeezes installation, and the inner sidewall of the annular outer wall and cylinder body 11 of piston 14 is installed at certain interval.
Shifting fork mechanism 4 is arranged by upper and lower two shifting fork piece 41 at U-shaped mechanism, and two shifting fork pieces 41 are located at piston rod 2
Two and connect with piston rod 2 by pin shaft 44 up and down；The axis of the piston rod 2 is equipped with a pin shaft hole 21, pin shaft 44
Both ends pass through pin shaft hole 21 and connect with the shifting fork piece 41 of 2 two sides of piston rod by sliding block 43 respectively；It is right on the shifting fork piece 41
It should be equipped with sliding slot 42, sliding block 43 can reciprocatingly slide in sliding slot 42 under the active force of pin shaft 44.Pin shaft 44 and pin shaft hole 21 it
Between be interference fitted.Stiff dough wear-resistant coating is coated on the acting surface of sliding slot 42 and sliding block 43.On the same axis of sliding slot 42, institute
The driving end 45 for stating shifting fork piece 41 is equipped with a mounting hole, installs for drive shaft 6；The drive shaft 6 connects with mounting hole key
It connects, the outer opening and closing that simultaneously application valve body is connect with valve body of drive case is stretched out in one end of drive shaft 6.
Substantially installation process based on the above-mentioned wear-resisting pneumatic actuator of the present embodiment are as follows:
Firstly, the hole location for installing piston rod 2 in drive case 1 is the horizontal through hole 31 through cabinet, which passes through 31
It is distributed with the hole of installation drive shaft 6 in spatial intersecting；Above-mentioned pin shaft hole 21 intersects vertically with horizontal through hole 31, for assembling and tearing open
Unload pin shaft 44.There are ring flange in the upper and lower top surface of drive case 1 and left and right end face, with connecting valve and partition 11 and piston rod cover
5.There is a square aperture behind drive case 1, for being packed into or taking out shift fork and observation inner case；Have before drive case 1
Two threaded holes, to be packed into caging bolt.Sliding bearing outer circle matches with the horizontal through hole 31 in drive case 1 and merges platform rank axis
To positioning, inner circle and 2 outer circle of piston rod cooperate, and the piston rod 2 moves in a straight line in sliding bearing along its axis direction, in
Portion has pin shaft hole 21 and pin shaft 44 to be interference fitted；Shift fork inner hole is passed through after 6 load key 46 of drive shaft, is matched above and below with rolling bearing
It closes, in bearing block, bearing block is packed into drive case 1 rolling bearing, is then fixed with sealing ring.
Secondly, sliding block 43 is packed into shift fork sliding slot 42 from the upper and lower aperture of drive case 1, pin shaft 44 is packed into from top, successively
Across sliding block 43, piston rod 2, sliding block 43, both ends are fixed with retaining ring.
Then, 1 aperture of drive case is packed into blocking, and hole is fixed with retaining ring.
Then, square hole loads onto rear cover behind drive case 1, is fixed with bolt.
Then, 1 front threaded hole of drive case loads onto caging bolt, gasket, nut, to adjust the angle of rotation of shift fork
Degree.
Then, 1 right end of drive case is packed into O-ring seal, partition 11, O-ring seal, gasket, bolt；Piston rod 2
Right end is packed into piston 14, locking nut screwing；14 outer circle groove of piston is packed into O-ring seal 16, after cylinder body 11 is packed into piston 14
Pull rod 15 is packed into the cooperation of 11 seam allowance of partition, partition 11, end cap 13 passes through its seam allowance loading cylinder body 11 after pull rod 15, the dress of pull rod 15
Enter washer to be tightened with nut.
Finally, 1 left end of drive case is packed into piston rod cover 5, tightened with bolt, nut.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. a kind of wear-resisting pneumatic actuator, it is characterised in that: it includes cylinder (1), piston rod (2) and drive case；The work
The both ends of stopper rod (2) are connect with cylinder (1) and drive case respectively；The piston rod (2) is made under the pneumatic actuation of cylinder (1)
Horizontal reciprocating movement, by the power output of cylinder (1) to drive case；Shifting fork mechanism (4) are equipped in the drive case, shift fork
Mechanism (4) is connect with piston rod (2), and the horizontal reciprocating movement of piston rod (2) is converted to spinning movement output.
2. wear-resisting pneumatic actuator according to claim 1, it is characterised in that: the shifting fork mechanism (4) is by upper and lower two groups
Forks piece (41) is arranged at U-shaped mechanism, and what two shifting fork pieces (41) were located at piston rod (2) two and passes through pin shaft up and down
(44) it is connect with piston rod (2)；The axis of the piston rod (2) is equipped with a pin shaft hole (21), and the both ends of pin shaft (44) pass through
Pin shaft hole (21) is connect by sliding block (43) with the shifting fork piece (41) of piston rod (2) two sides respectively；The shifting fork piece (41) on pair
Sliding slot (42) should be equipped with, sliding block (43) can reciprocatingly slide in sliding slot (42) under the active force of pin shaft (44).
3. wear-resisting pneumatic actuator according to claim 2, it is characterised in that: the pin shaft (44) and pin shaft hole (21) it
Between be interference fitted.
4. wear-resisting pneumatic actuator according to claim 2, it is characterised in that: the work of the sliding slot (42) and sliding block (43)
With oiling stiff dough wear-resistant coating equal on face.
5. the wear-resisting pneumatic actuator according to Claims 2 or 3 or 4, it is characterised in that: in the same of the sliding slot (42)
On axis, the driving end (45) of the shifting fork piece (41) is equipped with a mounting hole, installs for drive shaft (6)；The driving
Axis (6) and mounting hole are keyed, and the outer opening and closing that simultaneously application valve body is connect with valve body of drive case is stretched out in one end of drive shaft (6).
6. wear-resisting pneumatic actuator according to claim 5, it is characterised in that: the drive shaft (6) passes through rolling bearing
It is connect with drive case, rolling bearing is connect by bearing block with drive case.
7. wear-resisting pneumatic actuator described according to claim 1 or 2 or 3 or 4 or 6, it is characterised in that: cylinder (1) packet
It includes cylinder body (11), the cylinder body (11) is tubbiness, and both ends are tightly connected with partition (12) and end cap (13) respectively, partition (12)
With the air inlet and exhaust outlet for being respectively equipped with corresponding compressed gas on end cap (13), it to be used for the pneumatic control of cylinder (1)；It is described
Piston (14) are equipped in cylinder body (11), cylinder (1) is divided into two gas held cavitys by piston (14)；The piston rod (2)
One end pass through partition (12) and protrude into cylinder (1) and connect with piston (14), the other end runs through drive case and protrudes into piston rod cover
(5) in；The piston rod (2) is connect by sliding bearing with drive case, and piston rod cover (5) is fixedly mounted on drive case
On lateral wall.
8. wear-resisting pneumatic actuator according to claim 7, it is characterised in that: between the partition (12) and end cap (13)
It is tensed and is connected by several pull rods (15)；The pull rod (15) is evenly arranged along the lateral wall of cylinder body (11).
9. wear-resisting pneumatic actuator according to claim 7, it is characterised in that: on the annular outer side wall of the piston (14)
Equipped with an annular groove, sealing ring (16) are equipped in groove；The inner sidewall of the sealing ring (16) and cylinder body (11) is at certain pre-
Clamp force squeezes installation, and the inner sidewall of the annular outer wall and cylinder body (11) of piston (14) is installed at certain interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821515420.3U CN209100748U (en) | 2018-09-17 | 2018-09-17 | A kind of wear-resisting pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821515420.3U CN209100748U (en) | 2018-09-17 | 2018-09-17 | A kind of wear-resisting pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209100748U true CN209100748U (en) | 2019-07-12 |
Family
ID=67152697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821515420.3U Active CN209100748U (en) | 2018-09-17 | 2018-09-17 | A kind of wear-resisting pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209100748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128457A (en) * | 2020-09-23 | 2020-12-25 | 江苏艾瑞自控科技发展有限公司 | High-frequency long-life swing arm type pneumatic actuating mechanism |
| CN113357428A (en) * | 2021-07-12 | 2021-09-07 | 刘志君 | High-frequency long-life swing arm type pneumatic actuating mechanism |
-
2018
- 2018-09-17 CN CN201821515420.3U patent/CN209100748U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128457A (en) * | 2020-09-23 | 2020-12-25 | 江苏艾瑞自控科技发展有限公司 | High-frequency long-life swing arm type pneumatic actuating mechanism |
| CN113357428A (en) * | 2021-07-12 | 2021-09-07 | 刘志君 | High-frequency long-life swing arm type pneumatic actuating mechanism |
| CN113357428B (en) * | 2021-07-12 | 2023-03-14 | 刘志君 | High-frequency long-life swing arm type pneumatic actuating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 26, Yuchuan Road, high tech Industrial Park, Zigong, Sichuan, 643000 Patentee after: Sichuan Dewei Valve Co.,Ltd. Address before: No. 26, Yuchuan Road, high tech Industrial Park, Zigong, Sichuan, 643000 Patentee before: SICHUAN VOLANT VALVE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |