CN106015163A - Double-piston cylinder - Google Patents
Double-piston cylinder Download PDFInfo
- Publication number
- CN106015163A CN106015163A CN201610629296.2A CN201610629296A CN106015163A CN 106015163 A CN106015163 A CN 106015163A CN 201610629296 A CN201610629296 A CN 201610629296A CN 106015163 A CN106015163 A CN 106015163A
- Authority
- CN
- China
- Prior art keywords
- piston
- gear shaft
- cylinder
- cylinder body
- rack
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention relates to the field of mechanical transmission, and provides a double-piston cylinder with high stroke precision, good sealing effect and long service life, wherein the rotating angle of a gear shaft is also adjusted as required. The double-piston cylinder comprises a cylinder body (1), two rack pistons (2) are horizontally arranged symmetrically in the cylinder body (1), a gear shaft (3) is vertically arranged in the middle of the cylinder body (1), the gear shaft (3) is meshed with the rack piston (2), the rack piston (2) comprises a piston head part (4) and a rack part (5), the piston head part (4) is provided with a first end cover (6), a screw (7) is arranged on the first end cover (6), and the screw (7) is a length-adjustable screw.
Description
Technical field
The present invention relates to mechanical transmission fields, refer in particular to a kind of dual piston cylinder.
Background technology
Double-acting cylinder major impetus in the market comes from compressed air, compressed air is when a QI KOU enters lumen between cylinder two-piston, two-piston separation phase cylinder direction of both ends is made to move, the air of two ends air cavity is discharged by another QI KOU, makes the rack synchronous of two-piston drive output shaft gear to be rotated clockwise 90 degree simultaneously.In prior art, the cylinder body longitudinal axis cannot ensure with perpendicularity and the formation precision of gear shaft cylindrical with perpendicularity, the flank of tooth of transverse axis, plus using the factors such as environment, product is caused to have sealing effectiveness poor, easy to wear, the defects such as service life is short, the rotational angle of gear shaft can not be regulated as required, thus control the scope of piston movement.
Summary of the invention
The present invention need to solve the technical problem that to be to provide a kind of stroke accuracy height, good sealing effect, service life long, it is also possible to regulates the dual piston cylinder of the rotational angle of gear shaft as required.
The present invention need to solve the technical problem that and be achieved through the following technical solutions: a kind of dual piston cylinder, include cylinder body, cylinder body is lateral symmetry is provided with rack piston, the vertically arranged sprocket drive spindle in middle part of cylinder body, described gear shaft is meshed with described rack piston, the piston crown of described rack piston is provided with the first end cap, and described first end cap is provided with screw rod, and described screw rod is adjustable in length screw rod.
Compared with prior art, the present invention guarantees moment of torsion with thrust, gear shaft in this invention and rack piston are compact rack-and-pinion designs, whole piston area is utilized to export moment of torsion, ensure that the angle that gear shaft rotates is possible not only to is 0 ° or 90 °, the length of the screw rod being arranged on the first end cap can also be regulated, thus control the range of activity of piston.The accuracy of mesh of middle rack piston of the present invention and gear shaft is high, output constant torque.And invention removes the side loading on gear, so that abrasion is preferably minimized, extend the sealing life of gear shaft.
Accompanying drawing explanation
Fig. 1 is present configuration explosive view.
Fig. 2 is the structural representation of rack piston of the present invention.
Detailed description of the invention
Below according to accompanying drawing, the invention will be further described.
A kind of dual piston cylinder, including cylinder body 1, described cylinder body 1 is lateral symmetry is provided with two rack pistons 2, and rack piston 2 is made up of piston crown 4 and tooth-strip part 5, and piston crown 4 and tooth-strip part 5 are one-body molded, decreases dynamic seal (packing) point, makes air leakage point reduce.The vertically arranged sprocket drive spindle in middle part 3 of cylinder body 1, gear shaft 3 is meshed with rack piston 2.The outside of described piston crown 4 is provided with the first end cap 6, the first described end cap 6 is bolted on piston crown 4, and the first end cap 6 is provided with screw rod 7, and described screw rod 7 is through the first end cap 6, piston crown 4 can be withstood, it is also possible to be separated with piston crown 4.
Described screw rod 7 is adjustable in length screw rod, and when screw rod 7 a length of the longest, screw rod 7 withstands rack piston 2；When the length of screw rod 7 starts to shorten from extreme length, can gradually be separated with rack piston 2, and then and rack piston 2 between formed spacing, described spacing is that rack piston 2 provides range of activity, so that the rotational angle of gear shaft 3 is not only only 0 ° or 90 °, it is also possible to be arbitrarily angled between 0 ° to 90 °.
Being additionally provided with the upper through hole connected with described gear shaft 3 and lower through-hole on described cylinder body 1, described gear shaft 3 is disposed with the first sealing ring 8, gear bush 9 and the second end cap 10 by upper through hole；Described gear shaft 3 is provided with the second sealing ring 11 by lower through-hole, is possible to prevent the gas leakage from cylinder body.
Described cylinder body 1 uses aluminium alloy to draw molding；Described rack piston 2 is die casting passivation aluminium recovery, owing to all using aluminum alloy material, the present invention compared with same specification constructional device, lighter in weight, thus reduce friction, make the life of whole device.
The avris of described rack piston 2 is provided with seal member 12, can preferably make to avoid between rack piston 2 and cylinder body 1 leakage of gas.
Claims (5)
1. a dual piston cylinder, it is characterized in that: include cylinder body (1), lateral symmetry in cylinder body (1) it is provided with rack piston (2), the vertically arranged sprocket drive spindle in the middle part (3) of cylinder body (1), described gear shaft (3) is meshed with described rack piston (2), described rack piston (2) is made up of piston crown (4) and tooth-strip part (5), the first end cap (6) it is provided with on piston crown (4), being provided with screw rod (7) on described first end cap (6), described screw rod (7) is adjustable in length screw rod.
Dual piston cylinder the most according to claim 1, it is characterised in that: described tooth-strip part (5) and piston crown (4) are one-body molded.
Dual piston cylinder the most according to claim 1, it is characterized in that: be provided with the upper through hole connected with described gear shaft (3) and lower through-hole on described cylinder body (1), described gear shaft (3) is disposed with the first sealing ring (8), gear bush (9) and the second end cap (10) by upper through hole；Described gear shaft (3) is provided with the second sealing ring (11) by lower through-hole.
Dual piston cylinder the most according to claim 1, it is characterised in that: described cylinder body (1) uses aluminium alloy to draw molding；Described rack piston (2) is that die casting is passivated aluminium recovery.
Dual piston cylinder the most according to claim 1, it is characterised in that: the avris of described rack piston (2) is provided with seal member (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629296.2A CN106015163A (en) | 2016-08-04 | 2016-08-04 | Double-piston cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629296.2A CN106015163A (en) | 2016-08-04 | 2016-08-04 | Double-piston cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106015163A true CN106015163A (en) | 2016-10-12 |
Family
ID=57133719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610629296.2A Pending CN106015163A (en) | 2016-08-04 | 2016-08-04 | Double-piston cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015163A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124808A (en) * | 1982-01-20 | 1983-07-25 | Mitsubishi Heavy Ind Ltd | High-speed double-acting piston |
| US4932313A (en) * | 1988-09-30 | 1990-06-12 | Gutknecht William H | Air bearing piston and cylinder assembly |
| CN201661541U (en) * | 2010-04-26 | 2010-12-01 | 肇庆市志成气动有限公司 | Pneumatic double-acting actuation mechanism |
| CN102128187A (en) * | 2011-04-06 | 2011-07-20 | 肇庆市端州区志德五金有限公司 | Difunctional cylinder |
| CN102192214A (en) * | 2011-04-02 | 2011-09-21 | 肇庆市志成气动有限公司 | High-reliability oscillating cylinder |
| CN202149100U (en) * | 2011-08-11 | 2012-02-22 | 肇庆市志成气动有限公司 | High-temperature special cylinder |
-
2016
- 2016-08-04 CN CN201610629296.2A patent/CN106015163A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124808A (en) * | 1982-01-20 | 1983-07-25 | Mitsubishi Heavy Ind Ltd | High-speed double-acting piston |
| US4932313A (en) * | 1988-09-30 | 1990-06-12 | Gutknecht William H | Air bearing piston and cylinder assembly |
| CN201661541U (en) * | 2010-04-26 | 2010-12-01 | 肇庆市志成气动有限公司 | Pneumatic double-acting actuation mechanism |
| CN102192214A (en) * | 2011-04-02 | 2011-09-21 | 肇庆市志成气动有限公司 | High-reliability oscillating cylinder |
| CN102128187A (en) * | 2011-04-06 | 2011-07-20 | 肇庆市端州区志德五金有限公司 | Difunctional cylinder |
| CN202149100U (en) * | 2011-08-11 | 2012-02-22 | 肇庆市志成气动有限公司 | High-temperature special cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
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| RJ01 | Rejection of invention patent application after publication |