CN204041610U - A kind of large-diameter piston and the non-rotatable cylinder of piston rod - Google Patents
A kind of large-diameter piston and the non-rotatable cylinder of piston rod Download PDFInfo
- Publication number
- CN204041610U CN204041610U CN201420280413.5U CN201420280413U CN204041610U CN 204041610 U CN204041610 U CN 204041610U CN 201420280413 U CN201420280413 U CN 201420280413U CN 204041610 U CN204041610 U CN 204041610U
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- piston
- cylinder body
- piston rod
- rear end
- diameter
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Abstract
The utility model discloses a kind of large-diameter piston and the non-rotatable cylinder of piston rod, be made up of cylinder body and the piston rod be located in cylinder body, there is in described cylinder body straight-tube shape inner chamber, described piston is fixing on the piston rod, the outer surface of piston is close on the sidewall of the inner chamber of cylinder body, and it is poroid that the cross section of described inner chamber and piston is kidney-shaped; The front end of cylinder body is fixed with front cover, and the rear end of cylinder body is fixed with rear end cover, and the side of front cover is provided with exhaust port, the side of rear end cover is provided with inlet hole, be bolted with in inlet hole and regulate spiral shell block, regulate in spiral shell block and form axial hole, axial hole communicates with inlet hole.Its runs smooth, abrasion equilibrium, ensures that piston and piston rod are non-rotatable, meets the demand of specific occasion use.
Description
Technical field:
The utility model relates to pneumatic equipment technical field, relates to a kind of large-diameter piston and the non-rotatable cylinder of piston rod in particular.
Background technique:
Solenoid valve, cylinder, air processor are commonly called " three linked piece " of pneumatic system, the particularly important is cylinder.Although traditional cylinder profile is different, its internal diameter cross section is all circular usually.Directivity need not be considered when the advantage of this kind of cylinder is and installs; Piston and piston rod run lubricious smoothness; Manufacturing process is relatively simple; Abrasion equilibrium after simultaneously using.Its shortcoming is that piston and piston rod freely can rotate at 360 degree, can make troubles when this uses in some specific occasion.Such as require at the higher aerospace vehicle of precision, when using in the pneumatic or hydraulic machinery that high-grade, precision and advanced instrument, high ferro motor-car etc. are supporting, the parts that piston rod top connects need to locate absolutely accurate sometimes, and operationally direction or angle can not have slight offset.This just must the usage requirement piston that can not rotate and piston rod.Occurred that a kind of cross section is the cylinder body of regular polygon and the cylinder of piston and piston rod in recent years, the way also had is in cylinder body, arrange regular polygon bearing housing, arranges regular polygon support in piston rod outer end, does not deflect when running with stable plunger bar.Although this product temporarily solves non-rotatable problem, its structure relative complex, as work difficulty, piston and cylinder wall wear and tear irregular, have impact on the working life of cylinder.
Model utility content:
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of large-diameter piston and the non-rotatable cylinder of piston rod, and its runs smooth, abrasion equilibrium, ensures that piston and piston rod are non-rotatable, meet the demand of specific occasion use.
The scheme that the utility model solve the technical problem is:
A kind of large-diameter piston and the non-rotatable cylinder of piston rod, be made up of cylinder body and the piston rod be located in cylinder body, there is in described cylinder body straight-tube shape inner chamber, described piston is fixing on the piston rod, the outer surface of piston is close on the sidewall of the inner chamber of cylinder body, and it is poroid that the cross section of described inner chamber and piston is kidney-shaped;
The front end of cylinder body is fixed with front cover, and the rear end of cylinder body is fixed with rear end cover, and the side of front cover is provided with exhaust port, the side of rear end cover is provided with inlet hole, be bolted with in inlet hole and regulate spiral shell block, regulate in spiral shell block and form axial hole, axial hole communicates with inlet hole.
Described front cover, cylinder body are fixedly connected with by screw rod with rear end cover.
Described screw rod is successively through front cover, cylinder body and rear end cover, and the bottom of screw rod is bolted with set screw nut.
The sidewall of described piston forms annular groove, and seal ring is nested in annular groove, and the madial wall of seal ring and cylinder body is affixed.
The ear end face of described piston forms groove, and groove internal fixtion has cushion pad, and cushion pad is pressed against on the front-end face of rear end cover.
Be provided with vent in described front cover, vent one end communicates with inner chamber, the other end communicates with exhaust port, the diameter of vent is less than the diameter of exhaust port.
Also be bolted with in described exhaust port and regulate spiral shell block, regulate in spiral shell block and form axial hole.
Outstanding effect of the present utility model is:
Compared with prior art, its runs smooth, abrasion equilibrium, ensures that piston and piston rod are non-rotatable, meets the demand of specific occasion use.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is partial sectional view of the present utility model.
Embodiment:
Embodiment, see as shown in Fig. 1 to 2, a kind of large-diameter piston and the non-rotatable cylinder of piston rod, be made up of cylinder body 10 and the piston rod 20 be located in cylinder body 10, in described cylinder body 10, there is straight-tube shape inner chamber 100, described piston 30 is fixed on piston rod 20, and the outer surface of piston 30 is close on the sidewall of inner chamber 100 of cylinder body 10, and it is poroid that the cross section of described inner chamber 100 and piston 30 is kidney-shaped;
The front end of cylinder body 10 is fixed with front cover 2, the rear end of cylinder body 10 is fixed with rear end cover 3, and the side that the side of front cover 2 is provided with exhaust port 4 rear end cover 3 is provided with inlet hole 5, is bolted with and regulates spiral shell block 6 in inlet hole 5, regulate in spiral shell block 6 and form axial hole 61, axial hole 61 communicates with inlet hole 5.
Described front cover 2, cylinder body 10 are fixedly connected with by screw rod 7 with rear end cover 3.
Described screw rod 7 is successively through front cover 2, cylinder body 10 and rear end cover 3, and the bottom of screw rod 7 is bolted with set screw nut 8.
The sidewall of described piston 30 forms annular groove 31, and seal ring 32 is nested in annular groove 31, and seal ring 32 is affixed with the madial wall of cylinder body 10.
The ear end face of described piston 30 forms groove 33, and groove 33 internal fixtion has cushion pad 34, and cushion pad 34 is pressed against on the front-end face of rear end cover 3.
Be provided with vent 21 in described front cover 2, vent 21 one end communicates with inner chamber 100, the other end communicates with exhaust port 4, the diameter of vent 21 is less than the diameter of exhaust port 4.
Also be bolted with in described exhaust port 4 and regulate spiral shell block 6, regulate in spiral shell block 6 and form axial hole 61.
It is poroid that cross section due to piston 30 is kidney-shaped, therefore can not produce rotation when it moves in inner chamber 100, this product, as the general part of pneumatic system, can be widely used in various pneumatic machinery, its intensity or structure slightly make improvements, and the oil hydraulic cylinder also can making hydraulic system uses.Because piston 30 and piston rod 20 are non-rotatable, be particluarly suitable for Large-size Arms and Equipments, the high ferro motor-car such as aerospace vehicle, aircraft carrier warship; Little can be applicable to precision type instrument, testing apparatus etc.Because the inner chamber 100 of cylindrical shell 1 and piston 30 periphery are non-circular shape, require higher to processing and forming technology, when when manufacturing in enormous quantities, cylinder body 10 and piston 30 blank available dedicated die drawn shaping.
Meanwhile, its two of being provided with in exhaust port 4 and inlet hole 5 regulate spiral shell block 6 to change as required, make to regulate the diameter of the axial hole 61 in spiral shell block 6 to suit the requirements to control the speed that its piston 30 carries out the speed of movement.
Claims (7)
1. a large-diameter piston and the non-rotatable cylinder of piston rod, be made up of cylinder body (10) and the piston rod (20) be located in cylinder body (10), it is characterized in that: there is in described cylinder body (10) straight-tube shape inner chamber (100), described piston (30) is fixed on piston rod (20), the outer surface of piston (30) is close on the sidewall of inner chamber (100) of cylinder body (10), and it is poroid that the cross section of described inner chamber (100) and piston (30) is kidney-shaped;
The front end of cylinder body (10) is fixed with front cover (2), the rear end of cylinder body (10) is fixed with rear end cover (3), the side of front cover (2) is provided with exhaust port (4), the side of rear end cover (3) is provided with inlet hole (5), be bolted with in inlet hole (5) and regulate spiral shell block (6), regulate in spiral shell block (6) and form axial hole (61), axial hole (61) communicates with inlet hole (5).
2. a kind of large-diameter piston according to claim 1 and the non-rotatable cylinder of piston rod, is characterized in that: described front cover (2), cylinder body (10) are fixedly connected with by screw rod (7) with rear end cover (3).
3. a kind of large-diameter piston according to claim 2 and the non-rotatable cylinder of piston rod, it is characterized in that: described screw rod (7) is successively through front cover (2), cylinder body (10) and rear end cover (3), and the bottom of screw rod (7) is bolted with set screw nut (8).
4. a kind of large-diameter piston according to claim 1 and the non-rotatable cylinder of piston rod, it is characterized in that: the sidewall of described piston (30) forms annular groove (31), seal ring (32) is nested in annular groove (31), and seal ring (32) is affixed with the madial wall of cylinder body (10).
5. a kind of large-diameter piston according to claim 1 and the non-rotatable cylinder of piston rod, it is characterized in that: the ear end face of described piston (30) forms groove (33), groove (33) internal fixtion has cushion pad (34), and cushion pad (34) is pressed against on the front-end face of rear end cover (3).
6. a kind of large-diameter piston according to claim 1 and the non-rotatable cylinder of piston rod, it is characterized in that: in described front cover (2), be provided with vent (21), vent (21) one end communicates with inner chamber (100), the other end communicates with exhaust port (4), and the diameter of vent (21) is less than the diameter of exhaust port (4).
7. a kind of large-diameter piston according to claim 1 and the non-rotatable cylinder of piston rod, it is characterized in that: be also bolted with in described exhaust port (4) and regulate spiral shell block (6), regulate in spiral shell block (6) and form axial hole (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420280413.5U CN204041610U (en) | 2014-05-23 | 2014-05-23 | A kind of large-diameter piston and the non-rotatable cylinder of piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420280413.5U CN204041610U (en) | 2014-05-23 | 2014-05-23 | A kind of large-diameter piston and the non-rotatable cylinder of piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041610U true CN204041610U (en) | 2014-12-24 |
Family
ID=52242279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420280413.5U Expired - Fee Related CN204041610U (en) | 2014-05-23 | 2014-05-23 | A kind of large-diameter piston and the non-rotatable cylinder of piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228224A (en) * | 2019-06-18 | 2019-09-13 | 苏州好特斯模具有限公司 | Small angle rotation integral type fixed plate |
-
2014
- 2014-05-23 CN CN201420280413.5U patent/CN204041610U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228224A (en) * | 2019-06-18 | 2019-09-13 | 苏州好特斯模具有限公司 | Small angle rotation integral type fixed plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150523 |
|
| EXPY | Termination of patent right or utility model |