CN204646852U - A kind of zero reveals oil hydraulic cylinder - Google Patents
A kind of zero reveals oil hydraulic cylinder Download PDFInfo
- Publication number
- CN204646852U CN204646852U CN201520338144.8U CN201520338144U CN204646852U CN 204646852 U CN204646852 U CN 204646852U CN 201520338144 U CN201520338144 U CN 201520338144U CN 204646852 U CN204646852 U CN 204646852U
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- cylinder
- containing groove
- cylinder cap
- piston rod
- oil hydraulic
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Abstract
The utility model open a kind of zero reveals oil hydraulic cylinder, comprise cylinder body, cylinder cap, cylinder bottom, piston rod is equipped with in cylinder cap, containing groove is provided with in its cylinder body, containing groove bottom surface is provided with the circular open be communicated with cylinder interior, cylinder cap is equipped with in containing groove, and towards the diameter of the cylinder cover bottom surface of containing groove inside wider than described circular open diameter, circular open and cylinder cap contacting point are provided with the first seal ring, cylinder cap side is provided with rubber seal towards one end of containing groove inside, cylinder cap side is provided with directional post towards the outside place of containing groove, containing groove sidewall offers the guide channel that directional post is play the guiding role, one end that cylinder cap is placed in described containing groove outside is provided with lid edge, the second seal ring is provided with between Qi Gai edge and described cylinder body.The utility model, by multi-layer sealing structure, enhances the sealability of cylinder cap and cylinder body, prevents dust from entering oil cylinder inside, achieve zero leakage of oil hydraulic cylinder.
Description
Technical field
The utility model relates to oil hydraulic cylinder technical field, particularly relates to a kind of zero and reveals oil hydraulic 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.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.
Seal arrangement prevents the leakage of working medium (inside let out and leak) and prevents extraneous foreign matter (as air, dust and water etc.) from entering the mechanism of hydraulic element and hydraulic system.The quality of Sealing has govern the raising of hydraulic element and hydraulic system Performance And Reliability energy, the length in working life to a certain extent.Three places of oil hydraulic cylinder internals are the key region of sealing, this three place respectively: the sealing between cylinder body and piston, the sealing between cylinder body and piston rod, and the sealing between cylinder body and cylinder cap.Wherein, the sealing between cylinder body and end cap comprises dust sealing and grease proofing leakage seal.If the sealing between cylinder body and end cap is not ideal enough, leaking of cylinder body can be caused, thus affect the normal operation of cylinder device.
Model utility content
The technical problems to be solved in the utility model overcomes the deficiencies in the prior art, provides a kind of zero to reveal oil hydraulic cylinder.
A kind of zero reveals oil hydraulic cylinder, comprise cylinder body, described cylinder body one end is provided with cylinder cap, the other end is provided with cylinder bottom, piston rod is equipped with in described cylinder cap, cylindrical containing groove is provided with in described cylinder body, described containing groove is containing groove bottom surface towards the one side of cylinder interior, described containing groove bottom surface is provided with the circular open be communicated with described cylinder interior, described cylinder cap is equipped with in described containing groove, and towards the diameter of the described cylinder cover bottom surface of described containing groove inside wider than described circular open diameter, described circular open and described cylinder cap contacting point are provided with the first seal ring, described cylinder cap side is provided with rubber seal towards one end of containing groove inside, described cylinder cap side is provided with directional post towards the outside place of containing groove, described containing groove sidewall offers the guide channel play the guiding role to directional post, one end that described cylinder cap is placed in described containing groove outside is provided with lid edge, the second seal ring is provided with between described lid edge and described cylinder body.
Further, the arranged direction of described guide channel is consistent with the arranged direction of described piston rod.
Further, described piston rod one end is provided with piston, described piston side is provided with mounting hole, described piston rod is fixedly connected with described mounting hole screw thread, described piston opposite side is provided with the central channel in inner concavity, on the same line, described cylinder bottom is provided with oil inlet and outlet for the inner groovy heart of described central channel and piston rod, and described oil inlet and outlet is corresponding with described central channel to be arranged.
Further, described piston and piston rod joint are provided with the 3rd seal ring.
Compared with prior art, the utility model has the advantage of:
The zero leakage oil hydraulic cylinder that the utility model provides, at containing groove bottom opening, the first seal ring is set in cylinder body, between cylinder body end and containing groove, rubber seal is set, cylinder cap arranges lid edge and arranges the second seal ring between lid edge and described cylinder body, enhance the sealability of cylinder cap and cylinder body, prevent dust from entering oil cylinder inside, carry out multi-layer sealed protection, achieve zero leakage of oil hydraulic cylinder, and its cylinder cap side of the utility model arranges directional post, prevent cylinder cap skew circumferentially, thus ensured the stability of the work of piston rod, effectively improve quality and the working life of oil hydraulic cylinder.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
One zero shown in composition graphs 1 reveals oil hydraulic cylinder, cylindrical containing groove is provided with in cylinder body 12, containing groove is containing groove bottom surface towards the one side of cylinder body 12 inside, containing groove bottom surface is provided with the circular open be communicated with described cylinder body 12 inside, cylinder cap 13 is equipped with in containing groove, and towards the diameter of cylinder cap 13 bottom surface of containing groove inside wider than circular open diameter, circular open and cylinder cap 13 contacting point are provided with the first seal ring 5, cylinder cap 13 side is provided with rubber seal 4 towards one end of containing groove inside, cylinder cap 13 side is provided with directional post 3 towards the outside place of containing groove, containing groove sidewall offers the guide channel 2 that directional post 3 is play the guiding role, one end that cylinder cap 13 is placed in containing groove outside is provided with lid edge 1, the second seal ring 14 is provided with between lid edge 1 and cylinder body 12.
The column oil hydraulic cylinder that the present embodiment provides, at containing groove bottom opening, the first seal ring 5 is set in cylinder body 12, rubber seal 4 is set between cylinder body 12 end and containing groove, cylinder cap 13 arranges lid edge 1 and arranges the second seal ring 14 between lid edge 1 and described cylinder body 12, the diameter of its containing groove bottom surface opening is narrower than cylinder cap 13 basal diameter, thus by the first seal ring 5 and rubber seal 4, double-layer seal is achieved to cylinder cap 13 and containing groove, (wherein, containing groove is the trough body structure offered in the middle of cylinder body 12), enhance the sealability of cylinder cap 13 and cylinder body 12, prevent dust from entering oil cylinder inside, by multi-layer sealed protection, achieve zero leakage of oil hydraulic cylinder.
In the present embodiment, its cylinder cap 13 side arranges directional post 3, and the arranged direction of guide channel 2 is consistent with the arranged direction of piston rod 6, prevents cylinder cap 13 skew circumferentially, thus ensured the stability of the work of piston rod 6, effectively improve quality and the working life of oil hydraulic cylinder.
In the present embodiment, piston rod 6 one end is provided with piston 7, piston 7 side is provided with mounting hole, piston rod 6 is fixedly connected with mounting hole screw thread, piston 7 opposite side is provided with the central channel 8 in inner concavity, the inner groovy heart of central channel 8 and piston rod 6 are on the same line, cylinder bottom 9 is provided with oil inlet and outlet 10, its oil inlet and outlet 10 is corresponding with central channel 8 to be arranged, in the course of the work, under the control of hydraulic system, hydraulic coupling concentrates the inner groovy heart through central channel 8 to be passed to piston rod 6 through oil inlet and outlet 10, piston rod 6 can be concentrated stressed, improve the efficiency that hydraulic energy changes mechanical energy into, enhance the integral working of oil hydraulic cylinder.
In the present embodiment, piston 7 and piston rod 6 joint are provided with the 3rd seal ring 11.
Although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model.Any those of ordinary skill in the art, when not departing from technical solutions of the utility model scope, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as equivalents Equivalent embodiments.Therefore, every content not departing from technical solutions of the utility model, according to the utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solutions of the utility model protection.
Claims (4)
1. reveal oil hydraulic cylinder for one kind zero, comprise cylinder body, described cylinder body one end is provided with cylinder cap, the other end is provided with cylinder bottom, piston rod is equipped with in described cylinder cap, it is characterized in that, cylindrical containing groove is provided with in described cylinder body, described containing groove is containing groove bottom surface towards the one side of cylinder interior, described containing groove bottom surface is provided with the circular open be communicated with described cylinder interior, described cylinder cap is equipped with in described containing groove, and towards the diameter of the described cylinder cover bottom surface of described containing groove inside wider than described circular open diameter, described circular open and described cylinder cap contacting point are provided with the first seal ring, described cylinder cap side is provided with rubber seal towards one end of containing groove inside, described cylinder cap side is provided with directional post towards the outside place of containing groove, described containing groove sidewall offers the guide channel play the guiding role to directional post, one end that described cylinder cap is placed in described containing groove outside is provided with lid edge, the second seal ring is provided with between described lid edge and described cylinder body.
2. zero reveal oil hydraulic cylinder according to claim 1, it is characterized in that, the arranged direction of described guide channel is consistent with the arranged direction of described piston rod.
3. according to claim 1 zero reveal oil hydraulic cylinder, it is characterized in that, described piston rod one end is provided with piston, described piston side is provided with mounting hole, described piston rod is fixedly connected with described mounting hole screw thread, and described piston opposite side is provided with the central channel in inner concavity, and the inner groovy heart of described central channel and piston rod are on the same line, described cylinder bottom is provided with oil inlet and outlet, and described oil inlet and outlet is corresponding with described central channel to be arranged.
4. according to claim 3 zero reveal oil hydraulic cylinder, it is characterized in that, described piston and piston rod joint are provided with the 3rd seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338144.8U CN204646852U (en) | 2015-05-25 | 2015-05-25 | A kind of zero reveals oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338144.8U CN204646852U (en) | 2015-05-25 | 2015-05-25 | A kind of zero reveals oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646852U true CN204646852U (en) | 2015-09-16 |
Family
ID=54099611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520338144.8U Active CN204646852U (en) | 2015-05-25 | 2015-05-25 | A kind of zero reveals oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646852U (en) |
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2015
- 2015-05-25 CN CN201520338144.8U patent/CN204646852U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170306 Address after: 422001 Shaoyang City, Hunan Province Shuangqing District Road Construction Patentee after: Shaoyang Victor Hydraulics Co., Ltd. Address before: 410000 Changsha high tech Development Zone, Hunan Road, No. 679 Patentee before: Hunan Shaoye Hongge Hydraulic Co., Ltd. |
|
| TR01 | Transfer of patent right |