CN206874933U - A kind of compact pneumatic actuator - Google Patents
A kind of compact pneumatic actuator Download PDFInfo
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- CN206874933U CN206874933U CN201720840397.4U CN201720840397U CN206874933U CN 206874933 U CN206874933 U CN 206874933U CN 201720840397 U CN201720840397 U CN 201720840397U CN 206874933 U CN206874933 U CN 206874933U
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- casing
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- pneumatic actuator
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- compact
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Abstract
It the utility model is related to a kind of compact pneumatic actuator.Mainly solve the problems, such as that existing pinion and-rack pneumatic actuator space-consuming is larger, structure is not compact, cost is high and be not easy to installation.It is characterized in that：A piston (4) is installed in described cylinder block (1), one end of the corresponding drive end bearing bracket (2) of the piston (4) is connected with spiral handspike (5), screw-casing (6) is installed on the drive end bearing bracket (2), screw-casing (6) inwall is provided with the helicla flute (7) being adapted with spiral handspike (5), and spiral handspike (5) is located at into screw-casing (6).The compact pneumatic actuator uses the structure that spiral handspike and spiral pivoted housing are engaged, and piston stroke is smaller, compact-sized, occupies little space, and cost is low, is easily installed.
Description
Technical field
It the utility model is related to a kind of Valve controlling performs device, and in particular to a kind of compact pneumatic actuator.
Background technology
Pneumatic actuator is the Valve controlling performs device by the use of compressed gas as driving force, is controlled by pneumatic actuator
The opening and closing of valve processed, be generally otherwise known as pneumatic actuator or pneumatic head.At present, pinion and-rack pneumatically performs machine
Structure has the advantages that simple in construction, stable action is reliable and safety anti-explosive, is answered extensively in fields such as generatings, chemical industry, oil refining
With.Existing pinion and-rack pneumatic actuator includes cylinder block, piston, rack and gear shaft, and two are provided with cylinder block
Individual piston, rack is respectively connected with two pistons, gear shaft is hinged in the middle part of cylinder block, and two racks are respectively provided at gear shaft
Both sides are simultaneously meshed with gear shaft.At work, on the outside of the cylinder fluid chamber between two pistons and two pistons
Compressed air is passed through in cylinder fluid chamber, makes two pistons remote or draws close and rotated by rack drives gear shaft, gear shaft
Output end be connected with the valve rod of valve, and then control valve open and close purpose.This pinion and-rack is pneumatic
Following technological deficiency be present in executing agency：In order that gear shaft uniform force, two symmetrical pistons of generally use and two
Rack structure, because the angle range of gear shaft is usually 90 °, rack stroke is larger, and therefore, space-consuming is larger, and structure is not
Compact, cost is high, is not easy to install.
Utility model content
Existing pinion and-rack pneumatic actuator space-consuming is larger, structure is not compact, cost is high in order to solve and
The problem of being not easy to installation, the utility model provide a kind of compact pneumatic actuator, and the compact pneumatic actuator uses spiral shell
The structure that rotation push rod and spiral pivoted housing are engaged, piston stroke is smaller, compact-sized, occupies little space, and cost is low, is easy to pacify
Dress.
The technical solution of the utility model is：A kind of compact pneumatic actuator includes cylinder block, before the cylinder block
Both ends are respectively equipped with drive end bearing bracket and rear end cap afterwards, and a piston is provided with described cylinder block, and the piston corresponds to drive end bearing bracket
One end be connected with spiral handspike, screw-casing is installed, screw-casing inwall is provided with and is adapted with spiral handspike on the drive end bearing bracket
Helicla flute, spiral handspike is located in screw-casing.
The screw-casing is arranged on drive end bearing bracket by bearing.
The front end of the screw-casing is provided with the clamping joint being connected with valve rod.
The inwall of the cylinder block, which is provided with, is oriented to fin, and the edge of piston is provided with the guide groove to be matched with being oriented to fin.
The section for being oriented to fin is circular arc, is oriented to fin and is two and is symmetrical arranged.
The utility model has the advantages that：Due to taking such scheme, in the rodless cavity or rod chamber of cylinder block
Piston can drive spiral handspike to move along a straight line when being passed through compressed gas, and then rotate screw-casing, then be driven by screw-casing
Valve rod rotates, and because spiral handspike and screw-casing coordinate, spiral handspike has during less displacement with regard to that can make screw-casing in the axial direction
Reach larger rotational angle so that the stroke of piston effectively shortens, compact-sized, occupies little space, and cost is low, when in use
Easily it is combined with valve（Such as ball valve）, it is easily installed.
Brief description of the drawings
Accompanying drawing 1 is structure sectional view of the present utility model.
Accompanying drawing 2 is A-A structure sectional views in Fig. 1.
Accompanying drawing 3 is the inwall expanded view of screw-casing 6 in Fig. 1.
1- cylinder block in figure, 2- drive end bearing brackets, 3- rear end caps, 4- pistons, 5- spiral handspikes, 6- screw-casings, 7- helicla flutes, 8-
Bearing, 9- clamping joints, 10- are oriented to fin, 11- guide grooves.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Fig. 1~Fig. 3, a kind of compact pneumatic actuator, including cylinder block 1, the rear and front end of the cylinder block 1
Drive end bearing bracket 2 and rear end cap 3 are respectively equipped with, a piston 4, the corresponding drive end bearing bracket 2 of the piston 4 are installed in described cylinder block 1
One end be connected with spiral handspike 5, screw-casing 6 is installed, the inwall of screw-casing 6 is provided with and the phase of spiral handspike 5 on the drive end bearing bracket 2
The helicla flute 7 of adaptation, spiral handspike 5 are located at into screw-casing 6.Due to taking above-mentioned technical proposal, the rodless cavity of cylinder block 1 or
Piston 4 can drive spiral handspike 5 to move along a straight line when compressed gas is passed through in rod chamber, and then rotate screw-casing 6, then pass through
Screw-casing 6 rotates with ovable valve stem, and because spiral handspike 5 and screw-casing 6 coordinate, spiral handspike 5 has less displacement in the axial direction
When with regard to rotational angle that screw-casing 6 can be made to reach larger so that the stroke of piston 4 effectively shortens, compact-sized, space-consuming
Small, cost is low, is easily combined when in use with valve（Such as ball valve）, it is easily installed.
The screw-casing 6 is arranged on drive end bearing bracket 2 by bearing 8.Bearing 8 can reduce frictional resistance, while can be to spiral
Set 6 carries out axial limiting.
The front end of the screw-casing 6 is provided with the clamping joint 9 being connected with valve rod.The structure of clamping joint 9 and prior art
Structure is identical, makes valve rod and screw-casing 6 easy to connect.
The inwall of the cylinder block 1, which is provided with, is oriented to fin 10, and the edge of piston 4 is provided with leads with what guiding fin 10 matched
To groove 11.It is oriented to fin 10 with guide groove 11 to coordinate, play the guiding role, avoid piston 4 from rotating, make the linear advancement of spiral handspike 5
Do not rotate.
The section for being oriented to fin 10 is circular arc, is oriented to fin 10 and is two and is symmetrical arranged.It is oriented to fin 10
Section is that circular arc is easy to process, using two guiding uniform forces of fin 10, service life length.
Claims (5)
1. a kind of compact pneumatic actuator, including cylinder block (1), the rear and front end of the cylinder block (1) is respectively equipped with front end
Cover (2) and rear end cap (3), it is characterised in that：A piston (4) is installed in described cylinder block (1), the piston (4) is right
Answer one end of drive end bearing bracket (2) to be connected with spiral handspike (5), screw-casing (6) is installed on the drive end bearing bracket (2), screw-casing (6) is interior
Wall is provided with the helicla flute (7) being adapted with spiral handspike (5), and spiral handspike (5) is located at into screw-casing (6).
2. compact pneumatic actuator according to claim 1, it is characterised in that：The screw-casing (6) passes through bearing (8)
On drive end bearing bracket (2).
3. compact pneumatic actuator according to claim 1, it is characterised in that：The front end of the screw-casing (6) is provided with
The clamping joint (9) being connected with valve rod.
4. according to the compact pneumatic actuator described in claim 1,2 or 3, it is characterised in that：The inwall of the cylinder block (1)
Provided with fin (10) is oriented to, the edge of piston (4) is provided with the guide groove (11) to be matched with being oriented to fin (10).
5. compact pneumatic actuator according to claim 4, it is characterised in that：The section of the guiding fin (10) is
Circular arc, it is oriented to fin (10) and is two and is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840397.4U CN206874933U (en) | 2017-07-12 | 2017-07-12 | A kind of compact pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840397.4U CN206874933U (en) | 2017-07-12 | 2017-07-12 | A kind of compact pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874933U true CN206874933U (en) | 2018-01-12 |
Family
ID=61330414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720840397.4U Active CN206874933U (en) | 2017-07-12 | 2017-07-12 | A kind of compact pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206874933U (en) |
-
2017
- 2017-07-12 CN CN201720840397.4U patent/CN206874933U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Nie Honglin Inventor before: Li Boyong |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180408 Address after: 200120 Shanghai City, Pudong New Area Chinese (Shanghai) Free Trade Zone No. 1690 Cailun Road No. 2 building 103 room Patentee after: Shanghai Yisi Medical Technology Co., Ltd. Address before: 325036 room C38-202, No. 5, West Jing Road, Ouhai Economic Development Zone, Wenzhou City, Wenzhou, Zhejiang Patentee before: Wenzhou Ou Sheng electromechanical information technology Co. Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 103, building 2, no.1690, Cailun Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200120 Patentee after: Shanghai Yisi Medical Technology Co.,Ltd. Address before: Room 103, building 2, no.1690, Cailun Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI YISI MEDICAL TECHNOLOGY Co.,Ltd. |