CN2085439U - Decompression type auto-reciprocating cylinder - Google Patents
Decompression type auto-reciprocating cylinder Download PDFInfo
- Publication number
- CN2085439U CN2085439U CN 90210548 CN90210548U CN2085439U CN 2085439 U CN2085439 U CN 2085439U CN 90210548 CN90210548 CN 90210548 CN 90210548 U CN90210548 U CN 90210548U CN 2085439 U CN2085439 U CN 2085439U
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- China
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- cylinder
- valve
- decompression type
- stroke
- way valves
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Abstract
The utility model discloses a fixed stroke decompression type auto-reciprocating cylinder. Two two-position two-way valves are embedded in the cylinder, and are respectively connected with the corresponding control ports of a decompression type directional control valve. A piston moves to a stroke end, which is utilized to open the two-position two-way valves, and enables the directional control valve to change directions. Thus, the fixed stroke decompression type auto reciprocation of the cylinder is realized. A two-position five-way valve is connected in series in the control circuit of the decompression type directional control valve, which can control the start and stop of the cylinder, and enables the cylinder to stop at a prescribed end position. The utility model has the advantages of simple structure, reliable motion, less connecting pipelines, etc.
Description
The utility model is that a kind of interior dress Decompression valves is decided the stroke automatic reciprocating air cylinder, belongs to automation actuator.
Cylinder is a kind of widely used actuator.It is automatic reciprocating to need cylinder to decide stroke on many pneumatic equipments.Traditional method is at cylinder outside piston rod stroke two destination counties, and the automatic reciprocating of two stroke valve control cylinders is set.This method takes up space bigger, and on some equipment during the limited location of space, or equipment itself do not allow at stroke two ends the stroke valve to be set, and just difficultly uses this traditional method.In this case, though can adopt the pressure stroke switch, there are shortcomings such as running length instability, complex structure, poor reliability in it.
The purpose of this utility model is will provide a kind of can overcome the above-mentioned in-problem stroke automatic reciprocating air cylinder of deciding.
The utility model is to adopt two 2/2-way valves 1 of (for example on two end cap) setting-in and 5 in cylinder, and 7 controls of pressure-relief type selector valve are adopted in the commutation of cylinder.When cylinder arrives the stroke end, utilize piston end surface, can make 2/2- way valve 1 or 5 commutations, make valve 7 control corresponding chamber pressure releases, thereby valve 7 commutations make the automatic reciprocating work of cylinder.For example work as valve 8 and be in position, a left side (being the position I), when valve 7 left end A had output, piston rod stretched out, and 2/2-way valve 5 is in closed condition at this moment.When piston rod extend out to the stroke end, piston 3 right sides promoted 2/2-way valve rod 4, made control gas circuit b pressure release (2/2-way valve 1 cuts out at this moment) thereby valve 7 commutations, i.e. B end output, and A holds exhaust, makes the piston rod withdrawal, the piston left lateral.When piston left push rod 4, valve 5 promptly cut out.When piston rod was retracted to terminal point, the left side catch bar 2 of piston made control gas circuit a pressure release, thereby valve 7 commutations, changes the output of A end again into, and B holds exhaust, and piston rod stretches out again.So endlessly automatic reciprocating.
Serial connection switch valve with two-position and five-pass 8 in the control gas circuit, the may command cylinder stops in the final position that requires.When changing to right position (being the II position) as valve among the figure 8, the pressure release of b chamber, the sealing of a chamber, thus make valve 7 be decided to be B end output (A holds exhaust), cylinder stops at the piston rod retracted position.If desire to make cylinder to be parked in the piston rod extended position, only need a on the valve 8, the b mouth of pipe connects exchange and gets final product.
Because the utility model is to utilize side face of piston ring to promote to be embedded in two 2/2-way valves in the cylinder respectively, make the commutation of pressure-relief type selector valve, control cylinder automatic reciprocating, thus simple in structure, reliable in action, connecting pipeline is also less.
Fig. 1 is the fundamental diagram of deciding stroke pressure-relief type automatic reciprocating air cylinder that the utility model proposes.
This device includes: be positioned at the two position two-way valve (1) of cylinder left end, it can be opened by the piston (3) that moves to left end by its push rod (2) and carry out pressure release.When piston (3) when moving to right-hand member, promote push rod (4) and two position two-way valve (5) is opened carry out pressure release.Cylinder piston rod (6) is controlled it by pressure-relief type selector valve (7) by A, B passage and is stretched out and withdrawal.Two-position five-way valve (8) links to each other with pressure-relief type selector valve (7) by a, b passage, links to each other with the two position two-way valve that is positioned at the left and right end of cylinder (1), (5) respectively by a ', b ' passage again, stops with the position of control cylinder in regulation.
P is the source of the gas mouth among the figure, O
1, O
2, O
3, O
4Be respectively the relief opening of valve (7) and valve (1), (5).
The position is that piston rod is in the way of stretching out among the figure.
Claims (1)
- A kind ofly decide stroke pressure-relief type automatic reciprocating air cylinder, it is characterized in that adorning two two-way valves in cylinder interior, two control mouths of pressure-relief type selector valve respectively with cylinder on the corresponding valve port of two two-way valves join, commutate in the stroke terminal pressure release, make cylinder automatic reciprocating, one or two five-way valve of serial connection in control loop, the start and stop of may command cylinder, and can be parked in the end position of requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90210548 CN2085439U (en) | 1990-01-13 | 1990-01-13 | Decompression type auto-reciprocating cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90210548 CN2085439U (en) | 1990-01-13 | 1990-01-13 | Decompression type auto-reciprocating cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2085439U true CN2085439U (en) | 1991-09-25 |
Family
ID=4890449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90210548 Withdrawn CN2085439U (en) | 1990-01-13 | 1990-01-13 | Decompression type auto-reciprocating cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2085439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104416567A (en) * | 2013-08-21 | 2015-03-18 | 大宇造船海洋株式会社 | Pneumatic pressure device for laying power lines and method for controlling same |
| CN107355444A (en) * | 2016-05-10 | 2017-11-17 | 北京爱索能源科技股份有限公司 | Energy-saving cylinder |
-
1990
- 1990-01-13 CN CN 90210548 patent/CN2085439U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104416567A (en) * | 2013-08-21 | 2015-03-18 | 大宇造船海洋株式会社 | Pneumatic pressure device for laying power lines and method for controlling same |
| CN104416567B (en) * | 2013-08-21 | 2017-06-13 | 大宇造船海洋株式会社 | Electrical line setting robot pneumatic shuttle and its control method |
| CN107355444A (en) * | 2016-05-10 | 2017-11-17 | 北京爱索能源科技股份有限公司 | Energy-saving cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |