CN204312446U - A kind of Bidirectional piston type oil cylinder - Google Patents
A kind of Bidirectional piston type oil cylinder Download PDFInfo
- Publication number
- CN204312446U CN204312446U CN201420626903.6U CN201420626903U CN204312446U CN 204312446 U CN204312446 U CN 204312446U CN 201420626903 U CN201420626903 U CN 201420626903U CN 204312446 U CN204312446 U CN 204312446U
- Authority
- CN
- China
- Prior art keywords
- piston bar
- cylinder barrel
- piston
- bar
- guideway
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of Bidirectional piston type oil cylinder, comprise: secondary piston bar, cylinder barrel, piston, back piston bar, described cylinder barrel both ends open, secondary piston bar, back piston bar inserts in cylinder barrel from cylinder barrel both ends open respectively, secondary piston bar, back piston bar the inner is provided with piston, described cylinder barrel two ends are provided with cover plate, cover plate side is provided with guideway pressing plate, inside guideway pressing plate, guideway is installed, secondary piston bar, back piston bar inserts in cylinder barrel through guideway, described cover plate, be connected and fixed by pull bar between cylinder barrel, pull bar is provided with pull-rod nut, pull-rod nut and cover plate contacting point are provided with pad.The utility model, by not being provided with secondary piston bar, back piston bar at cylinder barrel two ends wind, can realizing two cylinder structures, substantially reduce the volume of oil cylinder, reduce cost of production simultaneously, and the utility model be rational in infrastructure, long service life in a cylinder body.
Description
Technical field
The utility model relates to oil cylinder field, is specially a kind of Bidirectional piston type oil cylinder.
Background technique
Hydraulic energy is changed into mechanical energy, does the hydraulic actuator of straight reciprocating motion (or oscillating motion) by oil hydraulic cylinder.Its structure is simple, reliable operation.When realizing to-and-fro motion with it, can speed reducer be removed from, and there is no drive gap, stable movement, therefore be used widely in the hydraulic system of various machinery.The pressure reduction on oil hydraulic cylinder ouput force and piston effective area and both sides thereof is directly proportional; Oil hydraulic cylinder is made up of cylinder barrel and cylinder cap, piston and piston rod, seal arrangement, damping device and venting gas appliance substantially.Damping device and venting gas appliance are depending on embody rule occasion, and other devices are then essential.
Chinese patent discloses a kind of oil cylinder (August 19 2009 day for announcing, notification number CN 201293002Y), it comprises outer cylinder body, piston rod, piston, flange, inner cylinder body, guide sleeve, nut and seal ring, it is characterized in that being provided with inner casing in outer cylinder body, inner casing is made up of inner cylinder body, piston rod and piston, outer cylinder body is connected by guide sleeve with inner casing, be provided with the oil circuit be connected with inner cylinder body for outer cylinder body on the piston rod, but its stock utilization is low, manufacturing difficulty is large, manufacture cost is high, and Energy transmission ratio is little.
Model utility content
The technical problem that the utility model solves is to provide a kind of Bidirectional piston type oil cylinder, to solve the problem proposed in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions: a kind of Bidirectional piston type oil cylinder, comprise: secondary piston bar, cylinder barrel, piston, back piston bar, described cylinder barrel both ends open, secondary piston bar, back piston bar inserts in cylinder barrel from cylinder barrel both ends open respectively, secondary piston bar, back piston bar the inner is provided with piston, described cylinder barrel two ends are provided with cover plate, cover plate side is provided with guideway pressing plate, inside guideway pressing plate, guideway is installed, secondary piston bar, back piston bar inserts in cylinder barrel through guideway, described cover plate, be connected and fixed by pull bar between cylinder barrel, pull bar is provided with pull-rod nut, pull-rod nut and cover plate contacting point are provided with pad.
Described secondary piston bar outer end is provided with spindle nose nut, and secondary piston bar is arranged with Plastibell.
Described back piston bar outer end is provided with annular knurl swivel nut, and the back piston bar of annular knurl swivel nut side is provided with knurled nut.
Described cover plate and cylinder barrel contacting point are provided with O type circle I, O type circle II, and O type circle I, O type circle II is fastened in the groove in cover plate.
Be provided with axle seal ring inside described secondary piston bar, back piston bar and guideway contacting point, outside secondary piston bar, back piston bar and guideway contacting point, be provided with axle dust ring.
Described piston both sides are provided with draw-in groove, are provided with y-type seal ring in draw-in groove, and piston and cylinder barrel contacting point are provided with guiding wear ring.
Compared with prior art, the beneficial effects of the utility model are: the utility model is not by being provided with secondary piston bar, back piston bar at cylinder barrel two ends wind, two cylinder structures can be realized in a cylinder body, substantially reduce the volume of oil cylinder, reduce cost of production simultaneously, and the utility model is rational in infrastructure, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 be in Fig. 1 A-A to sectional view.
In figure: 1, spindle nose nut; 2, secondary piston bar; 3, Plastibell; 4, pull bar; 5, pull-rod nut; 6, pad; 7, axle dust ring; 8, O type circle I; 9, O type circle II; 10, cylinder barrel; 11, piston; 12, cover plate; 13, guideway pressing plate; 14, back piston bar; 15, annular knurl swivel nut; 16, knurled nut; 17, axle seal ring; 18, lead wear ring; 19, y-type seal ring; 20, guideway.
Embodiment
In order to make actualizing technology means of the present utility model, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the utility model further.
As Fig. 1, shown in Fig. 2, a kind of Bidirectional piston type oil cylinder, comprise: secondary piston bar 2, cylinder barrel 10, piston 11, back piston bar 14, described cylinder barrel 10 both ends open, secondary piston bar 2, back piston bar 14 inserts in cylinder barrel 10 from cylinder barrel 10 both ends open respectively, secondary piston bar 2, back piston bar 14 the inner is provided with piston 11, described cylinder barrel 10 two ends are provided with cover plate 12, cover plate 12 side is provided with guideway pressing plate 13, guideway 20 is installed inside guideway pressing plate 13, secondary piston bar 2, back piston bar 14 inserts in cylinder barrel 10 through guideway 20, described cover plate 12, be connected and fixed by pull bar 4 between cylinder barrel 10, pull bar 4 is provided with pull-rod nut 5, pull-rod nut 5 and cover plate 12 contacting point are provided with pad 6.
Described secondary piston bar 2 outer end is provided with spindle nose nut 1, secondary piston bar 2 is arranged with Plastibell 3.
Described back piston bar 14 outer end is provided with annular knurl swivel nut 15, and the back piston bar 14 of annular knurl swivel nut 15 side is provided with knurled nut 16.
Described cover plate 12 is provided with O type circle I8, O type circle II9 with cylinder barrel 10 contacting point, and O type circle I8, O type circle II9 is fastened in the groove in cover plate 12.
Be provided with axle seal ring 17 inside described secondary piston bar 2, back piston bar 14 and guideway 20 contacting point, outside secondary piston bar 2, back piston bar 14 and guideway 20 contacting point, be provided with axle dust ring 7.
Described piston 11 both sides are provided with draw-in groove, are provided with y-type seal ring in draw-in groove, and piston 11 and cylinder barrel 10 contacting point are provided with the wear ring 18 that leads.
The utility model is not by being provided with secondary piston bar 2, back piston bar 14 at cylinder barrel 10 two ends wind, two cylinder structures can be realized in a cylinder body, substantially reduce the volume of oil cylinder, reduce cost of production simultaneously, and the utility model is rational in infrastructure, long service life.Meanwhile, the utility model adds effective work area, improves ouput force, so it is little to have volume, is convenient to the advantage of manufacturing.
More than show and describe basic principle of the present utility model and 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 describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. a Bidirectional piston type oil cylinder, comprise: secondary piston bar, cylinder barrel, piston, back piston bar, it is characterized in that: described cylinder barrel both ends open, secondary piston bar, back piston bar inserts in cylinder barrel from cylinder barrel both ends open respectively, secondary piston bar, back piston bar the inner is provided with piston, described cylinder barrel two ends are provided with cover plate, cover plate side is provided with guideway pressing plate, inside guideway pressing plate, guideway is installed, secondary piston bar, back piston bar inserts in cylinder barrel through guideway, described cover plate, be connected and fixed by pull bar between cylinder barrel, pull bar is provided with pull-rod nut, pull-rod nut and cover plate contacting point are provided with pad.
2. a kind of Bidirectional piston type oil cylinder according to claim 1, is characterized in that: described secondary piston bar outer end is provided with spindle nose nut, and secondary piston bar is arranged with Plastibell.
3. a kind of Bidirectional piston type oil cylinder according to claim 1, is characterized in that: described back piston bar outer end is provided with annular knurl swivel nut, and the back piston bar of annular knurl swivel nut side is provided with knurled nut.
4. a kind of Bidirectional piston type oil cylinder according to claim 1, is characterized in that: described cover plate and cylinder barrel contacting point are provided with O type circle I, O type circle II, and O type circle I, O type circle II is fastened in the groove in cover plate.
5. a kind of Bidirectional piston type oil cylinder according to claim 1, it is characterized in that: inside described secondary piston bar, back piston bar and guideway contacting point, be provided with axle seal ring, outside secondary piston bar, back piston bar and guideway contacting point, be provided with axle dust ring.
6. a kind of Bidirectional piston type oil cylinder according to claim 1, it is characterized in that: described piston both sides are provided with draw-in groove, are provided with y-type seal ring in draw-in groove, piston and cylinder barrel contacting point are provided with guiding wear ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626903.6U CN204312446U (en) | 2014-10-28 | 2014-10-28 | A kind of Bidirectional piston type oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626903.6U CN204312446U (en) | 2014-10-28 | 2014-10-28 | A kind of Bidirectional piston type oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312446U true CN204312446U (en) | 2015-05-06 |
Family
ID=53134764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420626903.6U Expired - Fee Related CN204312446U (en) | 2014-10-28 | 2014-10-28 | A kind of Bidirectional piston type oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035938A (en) * | 2018-01-09 | 2018-05-15 | 嘉兴新维液压缸有限公司 | The oil cylinder that a kind of push-pull effort is combined |
| CN111911631A (en) * | 2020-08-10 | 2020-11-10 | 常德市联嘉机械有限公司 | Bidirectional piston sealing structure used in high-pressure environment |
-
2014
- 2014-10-28 CN CN201420626903.6U patent/CN204312446U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035938A (en) * | 2018-01-09 | 2018-05-15 | 嘉兴新维液压缸有限公司 | The oil cylinder that a kind of push-pull effort is combined |
| CN111911631A (en) * | 2020-08-10 | 2020-11-10 | 常德市联嘉机械有限公司 | Bidirectional piston sealing structure used in high-pressure environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204646853U (en) | A kind of column oil hydraulic cylinder | |
| CN203098467U (en) | Buffering oil cylinder | |
| CN204312446U (en) | A kind of Bidirectional piston type oil cylinder | |
| CN204300024U (en) | A kind of intelligent Bidirectional piston type oil cylinder | |
| CN204140858U (en) | A kind of noise reduction hydraulic piston assembly | |
| CN203593538U (en) | High-precision positioning bridge-type crane for metallurgy | |
| CN204312449U (en) | A kind of vehicle oil hydraulic cylinder | |
| CN204300344U (en) | A kind of floating connection mechanism of hydraulic cylinder piston rod | |
| CN204942533U (en) | A kind of oil hydraulic cylinder cylinder head sealing configuration | |
| CN204312450U (en) | A kind of agricultural vehicle oil cylinder | |
| CN203604316U (en) | Pulling tower oil cylinder | |
| CN203321937U (en) | Buffer oil cylinder | |
| CN202991952U (en) | Braking device of shaft lever | |
| CN207093489U (en) | A kind of rotary oil cylinder | |
| CN203548404U (en) | Hydraulic oil cylinder | |
| CN204175706U (en) | A kind of safe pressure limiting tractor oil cylinder | |
| CN201394799Y (en) | Elevation device for pinch roller stand of H section steel assembly machine | |
| CN206036099U (en) | Two -level buffer ware | |
| CN205806393U (en) | A kind of middle straight gear | |
| CN203926744U (en) | A kind of multi-stage oil cylinder movable sealing structure | |
| CN205956233U (en) | Parallel transmission power shaft coupling | |
| CN203426609U (en) | Tension mechanism power system adopting hollow structure | |
| CN202592795U (en) | Stroke-adjustable mechanical material ramming device of hydraulic machine | |
| CN203161508U (en) | Pneumatic control device for air compressor | |
| CN203714807U (en) | Novel sending mechanism |
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: 20150506 Termination date: 20151028 |
|
| EXPY | Termination of patent right or utility model |