CN204900407U - Seal structure of pneumatic cylinder cylinder cap - Google Patents
Seal structure of pneumatic cylinder cylinder cap Download PDFInfo
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- CN204900407U CN204900407U CN201520434171.5U CN201520434171U CN204900407U CN 204900407 U CN204900407 U CN 204900407U CN 201520434171 U CN201520434171 U CN 201520434171U CN 204900407 U CN204900407 U CN 204900407U
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- cylinder
- cylinder body
- oil hydraulic
- cylinder cap
- piston rod
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Abstract
The application discloses seal structure of pneumatic cylinder cylinder cap, the pneumatic cylinder includes cylinder body, piston, piston rod, cylinder bottom and cylinder cap, the cylinder body has communicating cavity along the axial, the piston slide in in the cavity, the one end of piston rod with the piston is fixed, and the other end extends the outside of cavity, the cylinder bottom is sealed to be fixed in the one end of cylinder body, the cylinder cap cover is located the outside of piston rod is fixed in the other end of cylinder body, the cylinder body is located a pot head of cylinder cap is equipped with the 2nd cylinder body flange, the 2nd cylinder body flange's terminal surface with the terminal surface parallel and level of cylinder body, the 2nd cylinder body flange with still be equipped with cylinder liner and uide bushing between the cylinder cap, the uide bushing is located between cylinder liner and the cylinder cap, the outside of piston rod is located to cylinder liner and direction ways, the cylinder liner with be equipped with the sealing washer between the contact surface of cylinder body. The utility model discloses pneumatic cylinder simple to operate, cost of manufacture are hanged down, sealing performance is good.
Description
Technical field
The application relates to a kind of oil hydraulic cylinder, particularly relates to a kind of sealing configuration of oil hydraulic cylinder cylinder cap.
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.
There is the technical problem that assembling is inconvenient, sealing is poor in traditional oil hydraulic cylinder.
Model utility content
The purpose of this utility model is the sealing configuration providing a kind of oil hydraulic cylinder cylinder cap, to overcome deficiency of the prior art.
For achieving the above object, the utility model provides following technological scheme:
The embodiment of the present application discloses a kind of sealing configuration of oil hydraulic cylinder cylinder cap, described oil hydraulic cylinder comprises cylinder body, piston, piston rod, cylinder bottom and cylinder cap, described cylinder body has the cavity communicated vertically, described piston slides in described cavity, one end and the described piston of described piston rod are fixed, the other end extends the outside of described cavity, described cylinder bottom is sealingly fastened in one end of described cylinder body, described cylinder cap is sheathed on the outside of described piston rod and is fixed on the other end of described cylinder body, one end that described cylinder body is positioned at described cylinder cap is arranged with the second cylinder body flange, the end face of described second cylinder body flange is concordant with the end face of described cylinder body, cylinder sleeve and guide sleeve is also provided with between described second cylinder body flange and described cylinder cap, described guide sleeve is between described cylinder sleeve and cylinder cap, described cylinder sleeve and guide sleeve are sheathed on the outside of piston rod, seal ring is provided with between the surface of contact of described cylinder sleeve and described cylinder body.
Preferably, in the sealing configuration of above-mentioned a kind of oil hydraulic cylinder cylinder cap, described cylinder sleeve is towards the recessed seal ring mounting groove being formed with annular of one side of described cylinder body, and described seal ring is fixed in described seal ring mounting groove.
Preferably, in the sealing configuration of above-mentioned a kind of oil hydraulic cylinder cylinder cap, be welded and fixed between described second cylinder body flange and described cylinder body.
Preferably, in the sealing configuration of above-mentioned a kind of oil hydraulic cylinder cylinder cap, described cylinder sleeve protrudes out annular convex extension part towards the side of described cavity, and the external diameter of this convex extension part equals the diameter of described cavity, and described convex extension part is positioned at described cavity.
Preferably, in the sealing configuration of above-mentioned a kind of oil hydraulic cylinder cylinder cap, the surface of described piston rod is coated with layers of chrome, and the thickness of this layers of chrome is 0.05mm.
Preferably, in the sealing configuration of above-mentioned a kind of oil hydraulic cylinder cylinder cap, the internal surface of described cylinder body is coated with layers of chrome, and the thickness of this layers of chrome is 30 ~ 40 μm.
Preferably, in the sealing configuration of above-mentioned a kind of oil hydraulic cylinder cylinder cap, between the inwall of described piston and described cylinder body, seal ring is provided with.
Preferably, in the sealing configuration of above-mentioned a kind of oil hydraulic cylinder cylinder cap, between described cylinder cap and described piston rod, dust ring and rubber oil sea is also provided with.
Preferably, in the sealing configuration of above-mentioned a kind of oil hydraulic cylinder cylinder cap, described cylinder bottom offers the air release valve hole being communicated in described cavity.
Compared with prior art, the utility model has the advantage of: the utility model oil hydraulic cylinder is easy for installation, fabricating cost is low, good seal performance.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1 shows that the structural representation of oil hydraulic cylinder in the utility model specific embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be described in detail the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, belongs to the scope of the utility model protection.
Shown in ginseng Fig. 1, oil hydraulic cylinder comprises cylinder body 1, piston 2, piston rod 3, cylinder bottom 4 and cylinder cap 5, cylinder body 1 has the cavity communicated vertically, piston 2 slides in described cavity, one end and the described piston 2 of described piston rod 3 are fixed, the other end extends the outside of described cavity, and described cylinder bottom 4 is sealingly fastened in one end of described cylinder body 1, and described cylinder cap 5 is sheathed on the outside of described piston rod 3 and is fixed on the other end of described cylinder body 1.
One end of described cylinder body 1 is arranged with the first cylinder body flange 6, the end face of the first cylinder body flange 6 is concordant with the end face of described cylinder body 1, detachably fixed by bolt between described cylinder bottom 4 and described first cylinder body flange 6, between described cylinder bottom 4 and the surface of contact of described cylinder body 1, be provided with seal ring 7.
Further, described cylinder bottom 4 is towards the recessed seal ring mounting groove being formed with annular of one side of described cylinder body 1, and described seal ring 7 is fixed in described seal ring mounting groove.
Further, be welded and fixed between the first cylinder body flange 6 and described cylinder body 1.
Further, described cylinder bottom 4 protrudes out annular convex extension part 41 towards the side of described cavity, and the external diameter of this convex extension part 41 equals the diameter of described cavity, and described convex extension part 41 is positioned at described cavity.
Described cylinder body 1 is arranged with the second cylinder body flange 8 relative to the other end of the first cylinder body flange 6, the end face of the second cylinder body flange 8 is concordant with the end face of described cylinder body 1, also be provided with cylinder sleeve 9 and guide sleeve 10 between described second cylinder body flange 8 and described cylinder cap 5, described guide sleeve 10 is between described cylinder sleeve 9 and cylinder cap 5.Described cylinder sleeve 9 and guide sleeve 10 are sheathed on the outside of piston rod 3.Seal ring 11 is provided with between described cylinder sleeve 9 and the surface of contact of described cylinder body 1.
Further, described cylinder sleeve 9 is towards the recessed seal ring mounting groove being formed with annular of one side of described cylinder body 1, and described seal ring 11 is fixed in described seal ring mounting groove.
Further, be welded and fixed between described second cylinder body flange 8 and described cylinder body 1.
Further, described cylinder sleeve 9 protrudes out annular convex extension part 91 towards the side of described cavity, and the external diameter of this convex extension part 91 equals the diameter of described cavity, and described convex extension part 91 is positioned at described cavity.
Described second cylinder body flange 8, cylinder sleeve 9 and cylinder cap 5 offer the mounting hole with interior threaded surface communicated vertically respectively, and cylinder sleeve 9 and cylinder cap 5 are fixed on described second cylinder body flange 8 by the bolt 12 being arranged in described mounting hole.
Described cylinder cap 5 protrudes out annular convex extension part 51 towards the side of described cylinder sleeve 9, described cylinder sleeve 9 coordinates described convex extension part 51 to be formed with stepped part 92, described convex extension part 51 is resisted against the side of described stepped part 92, is provided with the seal ring 13 of annular between described convex extension part 51 and described stepped part 92.
Further, the recessed seal ring mounting groove being formed with annular on described convex extension part 51, described seal ring 13 is fixed in described seal ring mounting groove.
Further, dust ring 14 and rubber oil sea 15 is also provided with between described cylinder cap 5 and described piston rod 3.
Further, seal ring 16 is provided with between described piston 2 and the inwall of described cylinder body 1.
Further, described cylinder bottom 4 offers the air release valve hole 17 being communicated in described cavity.
Further, the surface of described piston rod 3 is coated with layers of chrome, and the thickness of this layers of chrome is 0.05mm.
Further, the internal surface of described cylinder body 1 is coated with layers of chrome, and the thickness of this layers of chrome is 30 ~ 40 μm.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or control panel, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the embodiment of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.
Claims (9)
1. the sealing configuration of an oil hydraulic cylinder cylinder cap, it is characterized in that, described oil hydraulic cylinder comprises cylinder body, piston, piston rod, cylinder bottom and cylinder cap, described cylinder body has the cavity communicated vertically, described piston slides in described cavity, one end and the described piston of described piston rod are fixed, the other end extends the outside of described cavity, described cylinder bottom is sealingly fastened in one end of described cylinder body, described cylinder cap is sheathed on the outside of described piston rod and is fixed on the other end of described cylinder body, one end that described cylinder body is positioned at described cylinder cap is arranged with the second cylinder body flange, the end face of described second cylinder body flange is concordant with the end face of described cylinder body, cylinder sleeve and guide sleeve is also provided with between described second cylinder body flange and described cylinder cap, described guide sleeve is between described cylinder sleeve and cylinder cap, described cylinder sleeve and guide sleeve are sheathed on the outside of piston rod, seal ring is provided with between the surface of contact of described cylinder sleeve and described cylinder body.
2. the sealing configuration of a kind of oil hydraulic cylinder cylinder cap according to claim 1, is characterized in that: described cylinder sleeve is towards the recessed seal ring mounting groove being formed with annular of one side of described cylinder body, and described seal ring is fixed in described seal ring mounting groove.
3. the sealing configuration of a kind of oil hydraulic cylinder cylinder cap according to claim 1, is characterized in that: be welded and fixed between described second cylinder body flange and described cylinder body.
4. the sealing configuration of a kind of oil hydraulic cylinder cylinder cap according to claim 1, it is characterized in that: described cylinder sleeve protrudes out annular convex extension part towards the side of described cavity, the external diameter of this convex extension part equals the diameter of described cavity, and described convex extension part is positioned at described cavity.
5. the sealing configuration of a kind of oil hydraulic cylinder cylinder cap according to claim 1, is characterized in that: the surface of described piston rod is coated with layers of chrome, and the thickness of this layers of chrome is 0.05mm.
6. the sealing configuration of a kind of oil hydraulic cylinder cylinder cap according to claim 1, is characterized in that: the internal surface of described cylinder body is coated with layers of chrome, and the thickness of this layers of chrome is 30 ~ 40 μm.
7. the sealing configuration of a kind of oil hydraulic cylinder cylinder cap according to claim 1, is characterized in that: be provided with seal ring between the inwall of described piston and described cylinder body.
8. the sealing configuration of a kind of oil hydraulic cylinder cylinder cap according to claim 1, is characterized in that: be also provided with dust ring and rubber oil sea between described cylinder cap and described piston rod.
9. the sealing configuration of a kind of oil hydraulic cylinder cylinder cap according to claim 1, is characterized in that: described cylinder bottom offers the air release valve hole being communicated in described cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434171.5U CN204900407U (en) | 2015-06-23 | 2015-06-23 | Seal structure of pneumatic cylinder cylinder cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434171.5U CN204900407U (en) | 2015-06-23 | 2015-06-23 | Seal structure of pneumatic cylinder cylinder cap |
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| Publication Number | Publication Date |
|---|---|
| CN204900407U true CN204900407U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520434171.5U Active CN204900407U (en) | 2015-06-23 | 2015-06-23 | Seal structure of pneumatic cylinder cylinder cap |
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| CN (1) | CN204900407U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673766A (en) * | 2016-03-25 | 2016-06-15 | 嘉兴职业技术学院 | Oil cylinder device dissipating heat automatically |
| CN106440936A (en) * | 2016-11-10 | 2017-02-22 | 北京理工大学 | Piston retreater of light-gas cannon |
| CN110273892A (en) * | 2019-06-21 | 2019-09-24 | 三峡大学 | A kind of multi-chamber hydraulic cylinder for the acquisition of wave energy wideband |
-
2015
- 2015-06-23 CN CN201520434171.5U patent/CN204900407U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673766A (en) * | 2016-03-25 | 2016-06-15 | 嘉兴职业技术学院 | Oil cylinder device dissipating heat automatically |
| CN105673766B (en) * | 2016-03-25 | 2019-02-26 | 嘉兴职业技术学院 | From heat dissipation cylinder apparatus |
| CN106440936A (en) * | 2016-11-10 | 2017-02-22 | 北京理工大学 | Piston retreater of light-gas cannon |
| CN106440936B (en) * | 2016-11-10 | 2018-10-30 | 北京理工大学 | A kind of light-gas gun moves back plug device |
| CN110273892A (en) * | 2019-06-21 | 2019-09-24 | 三峡大学 | A kind of multi-chamber hydraulic cylinder for the acquisition of wave energy wideband |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Peng Inventor before: Xu Wei |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160715 Address after: 071000 Hebei, Laishui County, Laishui Town, Yongan Avenue, south side Patentee after: Hebei Zhongmai Electromechanical Equipment Co., Ltd. Address before: Zhangjiagang City Tangqiao town, Fumin road Suzhou City, Jiangsu province 215600 No. 180 Zhangjiagang City Jingqiao Light Industry Machinery Co. Patentee before: Zhangjiagang Jinqiao Light Industry Machinery Co., Ltd. |