CN208331403U - Linear motion type pneumatic actuator - Google Patents
Linear motion type pneumatic actuator Download PDFInfo
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- CN208331403U CN208331403U CN201820160061.8U CN201820160061U CN208331403U CN 208331403 U CN208331403 U CN 208331403U CN 201820160061 U CN201820160061 U CN 201820160061U CN 208331403 U CN208331403 U CN 208331403U
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- linear motion
- piston
- pneumatic actuator
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Abstract
The utility model discloses a kind of linear motion type pneumatic actuators comprising linear motion type pneumatic actuator and linear motion type pneumatic actuator open in usual, linear motion type pneumatic actuator include rotation hand wheel, screw rod, limit swivel nut, sleeve, piston and piston rod；Linear motion type pneumatic actuator open in usual includes rotation hand wheel, screw rod, limit swivel nut, spring, piston and piston rod.The utility model is small in size, and structure is simple, convenient for production, is able to carry out manual operation, and is single-acting linear motion type pneumatic actuator, is suitable for complex environment.
Description
Technical field
The utility model relates to a kind of pneumatic actuators, and in particular to a kind of linear motion type pneumatic actuator.
Background technique
Existing pneumatic actuator generally mostly uses double acting pneumatic actuator, but pneumatic actuator lose gas source when
It waits, can only be held in place, can not automatically reset, therefore be unable to satisfy the needs of dangerous working condition.Therefore, single-acting pneumatically executes
Device still has critically important use value.Compared with double acting pneumatic actuator, single-action pneumatic executor air consumption is small, but body
Product is larger.The manual-operating mechanism of general linear motion type pneumatic actuator is needed with clutch structure, and clutch structure is relative complex,
Cost is high, and volume is larger.
When needing manual operation under the conditions of valve specific operation, single-acting linear motion type pneumatic actuator need to wear manual operation
Mechanism.After common single-acting linear motion type pneumatic actuator is in conjunction with manual-operating mechanism, larger, processing that there are actuator volumes
The disadvantages of difficult, inconvenient.
Utility model content
The utility model is directed to the above-mentioned deficiency of the prior art, provides that a kind of volume is smaller, structure is simple, is able to achieve hand
The linear motion type pneumatic actuator of the single-acting of dynamic mode of operation.
In order to solve the above technical problems, the utility model uses following technical proposal:
Provide a kind of linear motion type pneumatic actuator comprising shell, shell top are provided with rotation hand wheel, rotation hand wheel
Lower end is equipped with screw rod, and screw rod is disposed through in shell；Screw rod lower part is arranged with sleeve, sleeve lower end and the fixed company of piston
It connects, the edge of piston and the side wall of shell connect, and the central position of piston begins with through-hole, is provided through piston in through-hole
Bar, the lower end of screw rod are connected with sleeve spring, and the lower end of sleeve spring is fixedly connected with piston rod；Cylinder barrel bullet is provided in shell
The upper end of spring, cylinder barrel spring is fixedly connected with spring cylinder end cap, and the lower end of cylinder barrel spring and the upper surface of piston connect.
In above-mentioned technical proposal, it is preferred that be arranged with limit swivel nut on screw rod, limit the inner sidewall of swivel nut and shell upper
It is fixedly connected.
In above-mentioned technical proposal, it is preferred that shell is cylindrical, and shell includes spring cylinder end cap, spring cylinder end cap upper end
It is provided with rainhat, the upper surface of rainhat and screw rod are socketed.
In above-mentioned technical proposal, it is preferred that limit swivel nut is fixedly connected with the medial surface of spring cylinder end cap and rainhat.
In above-mentioned technical proposal, it is preferred that the edge of spring cylinder end cap is connected with spring cylinder barrel, outside the lower end of spring cylinder barrel
Surface is socketed with upper end cover, and the outer lower portion of upper end cover is socketed with piston bore, and the lower end inside of piston bore is socketed with lower end
Lid.
In above-mentioned technical proposal, it is preferred that be along the circumferential direction evenly arranged with several supports on the lower surface of lower cover
Bar.
In above-mentioned technical proposal, it is preferred that screw rod lower end is provided with spiro rod cap, spiro rod cap lower surface and sleeve spring it is upper
End connects；Screw rod, which is located at the position on spiro rod cap top, is arranged with thrust bearing.
In above-mentioned technical proposal, it is preferred that screw rod, which is located at the position on spiro rod cap top, is arranged with thrust bearing.
In above-mentioned technical proposal, it is preferred that the top of piston rod is connecting rod, and the diameter in the middle part of piston rod is greater than connection
The junction of bar, connecting rod and piston rod is support edge, and connecting rod and through-hole are socketed, and support edge is abutted with the lower surface of piston；
The upper end of connecting rod is fixedly connected with lower cartridge.
In above-mentioned technical proposal, it is preferred that cylinder barrel spring includes outer layer spring and internal layer spring, outer layer spring and internal layer bullet
The axle center of spring is identical.
The main beneficial effect of above-mentioned linear motion type pneumatic actuator provided by the utility model is:
By the way that sleeve to be set in shell, relative to existing structure, actuator volume can be reduced；Pass through rotation hand wheel
Screw rod rotation is driven, realizes and moves up and down under the reaction of limit swivel nut, meanwhile, screw rod band moving sleeve moves, and sleeve passes through
Sleeve spring band piston is moved upwards with piston rod, and the manual operation of pneumatic actuator can be realized；Pass through cylinder barrel spring
Piston top is returned outer casing underpart, realizes the closing function that automatically resets by effect.
By being arranged sleeve spring in sleeve, studdle, so that after screw rod tripping, by rotating backward handwheel, just
It can restore manual function automatically；And then it is able to solve the support in existing structure due to not no spring, when manual operation executes
When device, if there is misoperation, rotation hand wheel causes that screw rod is made to be detached from limit swivel nut, loses pneumatic actuator manual-operating mechanism
Effect, and in automatic work, there is the problem of cannot fully opening in actuator.It is accidentally grasped manually it is possible thereby to thoroughly solve
Make bring puzzlement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of linear motion type pneumatic actuator.
Fig. 2 is the shell schematic diagram of linear motion type pneumatic actuator.
Wherein, 1, rotation hand wheel, 11, connection shaft, 2, screw rod, 21, limit flat key, 22, spiro rod cap, 23, limit swivel nut,
3, shell, 31, rainhat, 32, spring cylinder end cap, 33, spring cylinder barrel, 34, upper end cover, 35, piston bore, 36, lower cover,
4, sleeve, 41, cover, 42, thrust bearing, 5, piston, 51, spring positioning slot, 52, through-hole, 6, piston rod, 61, connecting rod,
62, dust-proof pressing plate, 7, support rod, 8, spring, 81, cylinder barrel spring, 811, outer layer spring, 812, internal layer spring, 82, sleeve bullet
Spring.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, it is the structural schematic diagram of linear motion type pneumatic actuator.
Linear motion type pneumatic actuator provided by the utility model includes shell 3, and shell 3 is cylindrical, and shell 3 includes setting
The rainhat 31 at end placed on it, 31 lower end of rainhat are provided with spring cylinder end cap 32, and the edge of spring cylinder end cap 32 is connected with
Spring cylinder barrel 33, the lower end outer surface of spring cylinder barrel 33 are socketed with upper end cover 34, and the outer lower portion of upper end cover 34 is socketed with piston
Cylinder barrel 35, the lower end inside of piston bore 35 are socketed with lower cover 36, and support rod 7 is uniformly arranged on lower cover 36；Lower cover
Several support rods 7 are along the circumferential direction evenly arranged on 36 lower surface, as shown in Fig. 2, and passing through support rod 7 and other machines
Structure is fixedly connected.
Rotation hand wheel 1 is provided with above shell 3,1 lower end of rotation hand wheel is provided with connection shaft 11, and connection shaft 11 passes through
Screw is fixedly connected with the upper end of screw rod 2, and the upper end of screw rod 2 is in discount vibram outlet shape structure, passes through limit flat key on the side of screw rod 2
21 guarantee the relative position of screw rod 2 and rotation hand wheel 1 with the cooperation of rotation hand wheel 1.
The inner sidewall that limit swivel nut 23, limit swivel nut 23 and rainhat 31 and spring cylinder end cap 32 are arranged on screw rod 2 is solid
Fixed connection, 2 lower part of screw rod are arranged with sleeve 4, and 4 lower end of sleeve is fixedly connected with piston 5, and screw rod 2 is along the opposite fortune of limit swivel nut 23
Dynamic, under reaction force, band moving sleeve 4 and piston 5 are moved.
4 upper end of sleeve is arranged with cover 41, and sleeve spring 82 is provided in sleeve 4, and the lower end of screw rod 2 is provided with spiro rod cap
22,22 lower surface of spiro rod cap connects with the upper end of sleeve spring 82；Screw rod 2, which is located to be arranged at the position on 22 top of spiro rod cap, to be pushed away
Power bearing 42；When screw rod 2 moves, cover 41 is pushed to move by thrust bearing 42, and then move with moving sleeve 4.
By the way that sleeve spring 82 is arranged, screw rod 2 is played with spring supporting, when executing pneumatic operation, if there is rotation hand wheel 1
Misoperation makes screw rod 2 hold sleeve 4, and pneumatic actuator is made to close situation not in place, can be by the downward precession of screw rod 2 with de-
From limit swivel nut 23, by 82 studdle 2 of sleeve spring, so that screw rod 2 is in the scope of activities being limited, thus hand is rotated
Wheel 30 will not collide with actuator shell 3；By this structure, it both can solve 1 misoperation of rotation hand wheel and can damage and held
The problem of row device performance, and actuator structure is protected, it avoids colliding with rotation hand wheel 1.
The edge of piston 5 is connect with the side wall of piston bore 35, and the central position of piston 5 begins with through-hole 52, through-hole
Piston rod 6 is provided through in 52, the lower end of sleeve spring 82 is fixedly connected with piston rod 6.
The top of piston rod 6 is connecting rod 61, and the diameter at 6 middle part of piston rod is greater than connecting rod 61, connecting rod 61 and piston
The junction of bar 6 is support edge 63, and connecting rod 61 and through-hole 52 are socketed, and support edge 63 is abutted with the lower surface of piston 5；Connecting rod
61 upper end is fixedly connected by screw with 4 lower part of sleeve, is cooperated by screw and support edge 63, is made piston rod 6 in piston 5
Mobile drive executes the operation moved up and down down.
Cylinder barrel spring 81 is provided in shell 3, the upper end of cylinder barrel spring 81 is fixedly connected with spring cylinder end cap 32, cylinder barrel bullet
The lower end of spring 81 is connect with the upper surface of piston 5；By the way that cylinder barrel spring 81 is arranged, after actuator executes opening operation, will live
Plug 5 pushes up go back to the lower part in shell 3, realizes the closing function that automatically resets.
Specific embodiment of the present utility model is described above, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all utilize the innovation and creation of the utility model design in the column of protection.
Claims (10)
1. a kind of linear motion type pneumatic actuator, which is characterized in that including shell (3), be provided with rotation hand wheel above shell (3)
(1), rotation hand wheel (1) lower end is equipped with screw rod (2), and screw rod (2) is disposed through in shell (3)；
Screw rod (2) lower part is arranged with sleeve (4), and sleeve (4) lower end is fixedly connected with piston (5), the edge and shell of piston (5)
(3) side wall connection, the central position of piston (5) are begun with through-hole (52), are provided through piston rod in through-hole (52)
(6), the lower end of screw rod (2) is connected with sleeve spring (82), and the lower end of sleeve spring (82) is fixedly connected with piston rod (6)；
It is provided with cylinder barrel spring (81) in shell (3), the upper end of cylinder barrel spring (81) is fixedly connected with spring cylinder end cap (32), cylinder
The lower end of cylinder spring (81) is connect with the upper surface of piston (5).
2. linear motion type pneumatic actuator according to claim 1, which is characterized in that be arranged with limit on the screw rod (2)
Swivel nut (23), limit swivel nut (23) are fixedly connected with the inner sidewall on shell (3) top.
3. linear motion type pneumatic actuator according to claim 2, which is characterized in that the shell (3) is cylindrical, shell
(3) include spring cylinder end cap (32), spring cylinder end cap (32) upper end is provided with rainhat (31), the upper surface of rainhat (31) with
Screw rod (2) socket.
4. linear motion type pneumatic actuator according to claim 3, which is characterized in that the limit swivel nut (23) and spring cylinder
End cap (32) is fixedly connected with the medial surface of rainhat (31).
5. linear motion type pneumatic actuator according to claim 3, which is characterized in that the edge of the spring cylinder end cap (32)
It is connected with spring cylinder barrel (33), the lower end outer surface of spring cylinder barrel (33) is socketed with upper end cover (34), the outside of upper end cover (34)
Lower part is socketed with piston bore (35), and the lower end inside of piston bore (35) is socketed with lower cover (36).
6. linear motion type pneumatic actuator according to claim 5, which is characterized in that on the lower surface of the lower cover (36)
Along the circumferential direction it is evenly arranged with several support rods (7).
7. linear motion type pneumatic actuator according to claim 1, which is characterized in that screw rod (2) lower end is provided with spiral shell
Pole cap (22), spiro rod cap (22) lower surface connect with the upper end of sleeve spring (82).
8. linear motion type pneumatic actuator according to claim 7, which is characterized in that the screw rod (2) is located at spiro rod cap
(22) it is arranged at the position on top thrust bearing (42).
9. linear motion type pneumatic actuator according to claim 1, which is characterized in that the top of the piston rod (6) is to connect
Extension bar (61), the diameter in the middle part of piston rod (6) are greater than connecting rod (61), and the junction of connecting rod (61) and piston rod (6) is branch
It supports edge (63), connecting rod (61) and through-hole (52) are socketed, and support edge (63) is abutted with the lower surface of piston (5)；Connecting rod (61)
Upper end be fixedly connected with sleeve (4) lower part.
10. linear motion type pneumatic actuator according to claim 1, which is characterized in that the cylinder barrel spring includes outer layer bullet
Spring (811) and internal layer spring (812), outer layer spring (811) are identical as the axle center of internal layer spring (812).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820160061.8U CN208331403U (en) | 2018-01-30 | 2018-01-30 | Linear motion type pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820160061.8U CN208331403U (en) | 2018-01-30 | 2018-01-30 | Linear motion type pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331403U true CN208331403U (en) | 2019-01-04 |
Family
ID=64782116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820160061.8U Active CN208331403U (en) | 2018-01-30 | 2018-01-30 | Linear motion type pneumatic actuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN208331403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071845A (en) * | 2018-01-30 | 2018-05-25 | 成都威登阀门技术有限公司 | Linear motion type pneumatic actuator |
| CN115031448A (en) * | 2022-05-17 | 2022-09-09 | 合肥通用机械研究院有限公司 | Manual-automatic integrated adjusting device based on expansion valve |
-
2018
- 2018-01-30 CN CN201820160061.8U patent/CN208331403U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071845A (en) * | 2018-01-30 | 2018-05-25 | 成都威登阀门技术有限公司 | Linear motion type pneumatic actuator |
| CN108071845B (en) * | 2018-01-30 | 2024-04-05 | 成都威登阀门技术有限公司 | Straight-stroke pneumatic actuator |
| CN115031448A (en) * | 2022-05-17 | 2022-09-09 | 合肥通用机械研究院有限公司 | Manual-automatic integrated adjusting device based on expansion valve |
| CN115031448B (en) * | 2022-05-17 | 2024-03-08 | 合肥通用机械研究院有限公司 | Manual-automatic integrated adjusting device based on expansion valve |
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