CN203500165U - Double-ejection-rod air cylinder - Google Patents
Double-ejection-rod air cylinder Download PDFInfo
- Publication number
- CN203500165U CN203500165U CN201320459118.1U CN201320459118U CN203500165U CN 203500165 U CN203500165 U CN 203500165U CN 201320459118 U CN201320459118 U CN 201320459118U CN 203500165 U CN203500165 U CN 203500165U
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- China
- Prior art keywords
- piston
- cylinder barrel
- rod
- cylinder
- ejection
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Abstract
The utility model discloses a double-ejection-rod air cylinder which relates to the technical field of air cylinder devices and aims at solving the problems that a double-ejection-rod air cylinder in the prior art is complicated in process, fussy in processing and short in service life. The double-ejection-rod comprises a cylinder barrel, a piston assembly arranged in the cylinder barrel and a front cover for sealing the cylinder barrel; the piston assembly consists of a first piston rod, a second piston rod sleeved with the first piston rod, a piston fixed at the connection part between the first piston rod and the second piston rod, and sealing rings, wherein the cylinder barrel is separated into two air cavities by the piston; the cylinder barrel is provided with two air inlets A and B which are respectively communicated with the two air cavities in a one-to-one correspondence manner; each piston rod penetrates through the cylinder barrel and the front cover, the front cover is fixed on the cylinder barrel through a snap spring, and the sealing rings are arranged at the connection parts of the cylinder barrel. The double-ejection-rod air cylinder is simple in design of the technological structure and convenient to machine and assemble, and a traditional double-ejection-rod air cylinder structure is not required; the cylinder barrel and the end cover are integrally designed, so that the double-ejection-rod air cylinder is convenient to machine, and materials are saved; as the sealing rings are good in wear resistance, the double-ejection-rod air cylinder is long in service life.
Description
Technical field
The utility model relates to cylinder assembly technical field, is specifically related to a kind of process structure simple, process easy to assembly, two rod cylinders of long service life.
Background technique
At automatic line, assembly line, the fields such as five metals, machining, pulling force or clamping force that portioned product, workpiece need are larger.In this case, if use common two-container cylinder, will increase cylinder diameter or increase number of cylinders, if limited space, this function just cannot realize so.The power of common twin-tub output on two piston rods, the integration that need to lean on other element realizable force.At limited space, exert oneself and require in high situation, make the narrow limitation of two-container cylinder more outstanding.There is following shortcoming in prior art in the case: 1, the masterpiece of each the cylinder output in twin-tub is used on piston rod separately; 2, in the limited situation of spatial condition, exert oneself and be restricted.The cylinder of this structure, load capacity is poor, and steady not in running, to user, brings many puzzlements.
Model utility content
The defect existing in order to solve above-mentioned technology, improves the pneumatic flexibility of cylinder and extends working life of cylinder, and the utility model provides a kind of process structure simple, process easy to assembly, two rod cylinders of long service life.
The utility model is realized the technological scheme that above-mentioned technique effect adopts:
A kind of pair of rod cylinder, comprise cylinder barrel, be located at the protecgulum of piston assembly in cylinder barrel and sealing cylinder barrel, described piston assembly is by first piston bar, form with the second piston rod of first piston bar socket, the piston and the seal ring that are fixed on first piston bar and the second piston rod joint, described piston is separated into two air cavitys by cylinder barrel, described cylinder barrel is provided with two suction port A and B, described suction port A and suction port B respectively with the corresponding conducting one by one of two air cavitys, described first piston bar and the second piston rod connect cylinder barrel and protecgulum.
In a kind of pair of above-mentioned rod cylinder, described seal ring comprises that the Z-shaped circle of the outside piston perimeter surface of fitting with cylinder barrel sidewall is enclosed, is located to the O shape that is located at first piston bar and piston joint.
In a kind of pair of above-mentioned rod cylinder, perforation place of described first piston bar and cylinder barrel is provided with dust sealing plug, and perforation place of described the second piston rod and protecgulum is provided with dust sealing plug, and the connecting part of described protecgulum and cylinder barrel is provided with O shape circle.
In a kind of pair of above-mentioned rod cylinder, described protecgulum is fixed on cylinder barrel by jump ring, and the edge nest card of described jump ring is combined in the groove on cylinder barrel.
In a kind of pair of above-mentioned rod cylinder, described seal ring is that a kind of high abrasion resisting material is made, and described high-abrasive material is a kind of in polyurethane elastomer, teflon, nitrile butadiene rubber or silicone rubber.
The beneficial effects of the utility model are: this pair of rod cylinder simplicity of design on process structure, by two nested linking together of piston rod, by two air outlets respectively air inlet control piston move, realized the high requirement of exerting oneself of exerting oneself in the confined space; The design of cylinder barrel end cap integral type, makes cylinder rapidly convenient when production and processing, has saved material simultaneously; The material of black box has good high-wear resistance, can bear friction repeatedly, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-cylinder barrel, 2-dust sealing plug, 3-first piston bar, 4-O shape circle, 5-piston, 6-Z shape circle, 8-jump ring, 9-protecgulum, 10-the second piston rod.
Embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further detail:
Shown in Fig. 1, a kind of pair of rod cylinder, comprise cylinder barrel 1, be located at piston assembly and the protecgulum 9 that seals cylinder barrel 1 in cylinder barrel 1, described piston assembly is by first piston bar 3, the second piston rod 10 with 3 sockets of first piston bar, the piston 5 and the seal ring that are fixed on first piston bar 3 and the second piston rod 10 joints form, described piston 5 is separated into two air cavitys by cylinder barrel 1, two air cavitys are each other in state of isolation, described cylinder barrel 1 is provided with two suction port A and B, described suction port A and suction port B respectively with the corresponding conducting one by one of two air cavitys, described first piston bar 3 and the second piston rod 10 connect cylinder barrel 1 and protecgulum 9.The position of first piston bar 3 and the second piston rod 10 sockets is provided with groove, and the bottom of groove is provided with annular groove.The second piston rod 10 is provided with a protuberance with the position of first piston bar 3 sockets, and the end of this protuberance is provided with the card tip, and the protuberance of the second piston rod 10 inserts in the groove of first piston bar 3, and the card tip on protuberance is nested in the annular scrobicular ring of bottom portion of groove.
During enforcement, described seal ring comprises the O shape circle 4 that is located at first piston bar 3 and piston 5 joints and the Z-shaped circle 6 that is located at piston 5 external peripheral surfaces of fitting with cylinder barrel 1 sidewall.This O shape circle 4 can prevent from occurring between piston 5 and first piston bar 3 leakage of air-flow, can play good seal action.This Z-shaped circle 6 can prevent from occurring between piston 5 and cylinder barrel 1 air-flow and reveal, and guarantees that cylinder barrel 1 is interior to be kept each other separate state by separated two air cavitys of piston 5.
During enforcement, described first piston bar 3 is provided with dust sealing plug 2 with perforation place of cylinder barrel 1, this dust sealing plug 2 packs in cylinder barrel 1, fit tightly with first piston bar 3, stopped gap between the two, can prevent that the gas of cylinder barrel 1 interior air cavity from revealing from the gap location between first piston bar 3 and cylinder barrel 1.Described the second piston rod 10 is provided with dust sealing plug 2 with perforation place of protecgulum 9, this dust sealing plug 2 packs in protecgulum 9, fit tightly with the second piston rod 10, stopped gap between the two, can prevent that the gas of cylinder barrel 1 interior air cavity from revealing from the gap location between the second piston rod 10 and protecgulum 9.Described protecgulum 9 is provided with O shape circle with the connecting part of cylinder barrel 1, and this O shape circle fits tightly protecgulum 9 and cylinder barrel 1, has stopped gap between the two, can prevent that the gas of cylinder barrel 1 interior air cavity from revealing from the gap location between protecgulum 9 and cylinder barrel 1.
During enforcement, described protecgulum 9 is fixed on cylinder barrel 1 by jump ring 8, and the edge nest card of described jump ring 1 is combined in the groove on cylinder barrel 1.This jump ring 8 is fastened on protecgulum 9 and piston assembly on cylinder barrel 1, can prevent that cylinder barrel 1 is after ventilation, and the pressurized air in air cavity is washed protecgulum 9 and piston assembly open.
During enforcement, described seal ring is that a kind of high abrasion resisting material is made, and described high-abrasive material is a kind of in polyurethane elastomer, teflon, nitrile butadiene rubber or silicone rubber.
Under normality, suction port A and the equal airless of suction port B are entered, piston 5 attonitys in cylinder barrel 1.When air-flow enters cylinder barrel 1 when interior from suction port A, be greater than the pressure in the air cavity of piston 5 opposite sides with pressure in the air cavity of suction port A conducting, so, piston 5 moves right, air in the air cavity of compression and suction port B conducting, air after compression is discharged from suction port B, and piston 5 drives first piston bar 3 and the second piston rod 10 to move right simultaneously.When air-flow enters cylinder barrel 1 when interior from suction port B, be greater than the pressure in the air cavity of piston 5 opposite sides with pressure in the air cavity of suction port B conducting, so, piston 5 is moved to the left, air in the air cavity of compression and suction port A conducting, air after compression is discharged from suction port A, and piston 5 drives the second piston rod 10 and first piston bar 3 to be moved to the left simultaneously.By suction port A and the suction port B air inlet of taking turns, the exhaust in turn of the action of the left and right of control cylinder inner piston rod and suction port A, B.
This pair of rod cylinder simplicity of design on process structure, by two nested linking together of piston rod, by two air outlets respectively air inlet control piston move, realized the high requirement of exerting oneself of exerting oneself in the confined space; The design of cylinder barrel end cap integral type, makes cylinder rapidly convenient when production and processing, has saved material simultaneously; The material of black box has good high-wear resistance, can bear friction repeatedly, long service life.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications; these changes and improvements all fall in claimed scope of the present utility model, and the protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (5)
1. two rod cylinders, comprise cylinder barrel, are located at piston assembly in cylinder barrel and the protecgulum of sealing cylinder barrel; It is characterized in that, described piston assembly is by first piston bar, form with the second piston rod of first piston bar socket, the piston and the seal ring that are fixed on first piston bar and the second piston rod joint, described piston is separated into two air cavitys by cylinder barrel, described cylinder barrel is provided with suction port A and suction port B, described suction port A and suction port B respectively with the corresponding conducting one by one of two air cavitys, described first piston bar and the second piston rod connect cylinder barrel and protecgulum.
2. a kind of pair of rod cylinder according to claim 1, is characterized in that, described seal ring comprises that the Z-shaped circle of the outside piston perimeter surface of fitting with cylinder barrel sidewall is enclosed, is located to the O shape that is located at first piston bar and piston joint.
3. a kind of pair of rod cylinder according to claim 1, it is characterized in that, perforation place of described first piston bar and cylinder barrel is provided with dust sealing plug, and perforation place of described the second piston rod and protecgulum is provided with dust sealing plug, and the connecting part of described protecgulum and cylinder barrel is provided with O shape circle.
4. a kind of pair of rod cylinder according to claim 1, is characterized in that, described protecgulum is fixed on cylinder barrel by jump ring.
5. a kind of pair of rod cylinder according to claim 1 and 2, is characterized in that, described seal ring is that a kind of high abrasion resisting material is made, and described high-abrasive material is a kind of in polyurethane elastomer, teflon, nitrile butadiene rubber or silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320459118.1U CN203500165U (en) | 2013-07-30 | 2013-07-30 | Double-ejection-rod air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320459118.1U CN203500165U (en) | 2013-07-30 | 2013-07-30 | Double-ejection-rod air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500165U true CN203500165U (en) | 2014-03-26 |
Family
ID=50331147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320459118.1U Expired - Fee Related CN203500165U (en) | 2013-07-30 | 2013-07-30 | Double-ejection-rod air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500165U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538252A (en) * | 2017-08-28 | 2018-01-05 | 华星传动科技无锡有限公司 | The pneumatic swelling fixture of electric machine of numerically controlled machine casing processing |
-
2013
- 2013-07-30 CN CN201320459118.1U patent/CN203500165U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538252A (en) * | 2017-08-28 | 2018-01-05 | 华星传动科技无锡有限公司 | The pneumatic swelling fixture of electric machine of numerically controlled machine casing processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |