CN202718954U - Novel hydraulic oil cylinder - Google Patents
Novel hydraulic oil cylinder Download PDFInfo
- Publication number
- CN202718954U CN202718954U CN2012202988553U CN201220298855U CN202718954U CN 202718954 U CN202718954 U CN 202718954U CN 2012202988553 U CN2012202988553 U CN 2012202988553U CN 201220298855 U CN201220298855 U CN 201220298855U CN 202718954 U CN202718954 U CN 202718954U
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- piston
- novel hydraulic
- cylinder barrel
- hydraulic cylinder
- body part
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Abstract
The utility model relates to a novel hydraulic oil cylinder which comprises a cylinder barrel, a piston and a piston rod, wherein a plurality of flange ribs are arranged on the inner wall of the cylinder barrel along the extending direction of the cylinder barrel; the piston is accommodated in the cylinder barrel; two grooves are formed in the surface of the piston; lubricating cotton is arranged in each groove; a guiding groove clamped with the flange ribs is further formed in the piston; the piston rod comprises a rod body part, a mounting part and a thread part; the diameters of the rod body part, the mounting part and the thread part are sequentially reduced; the piston is arranged on the mounting part; a screw cap is screwed on the thread part; and a positioning pin is abutted against one side of the screw cap and penetrates through the thread part. The novel hydraulic oil cylinder disclosed by the utility model has the advantages of firmness in holding, low possibility of wear, favorable piston guiding property, long service life and the like.
Description
[technical field]
The utility model relates to a kind of Novel hydraulic cylinder, belongs to the hydraulic equipment technical field.
[background technique]
Hydraulic jack is very widely industrial automation equipment of a kind of application, and it mainly is comprised of several parts such as cylinder barrel, piston and piston rods, makes piston to-and-fro motion in cylinder barrel by the piston rod pushing piston.
And the piston rod of prior art and piston fit together both by interference fit or the mode that screws togather cooperation usually, might cause piston rod and piston to be separated from each other in long-term using process, thereby affect the normal operation of hydraulic jack.
Simultaneously, piston because can not get fully lubricated easily wearing and tearing, reduces the working efficiency of hydraulic jack in the work engineering greatly, has also increased maintenance cost simultaneously.
Have, piston is easy to deflect in the situation of discontinuity and causes uneven wear, and then the sealability of this hydraulic jack is reduced greatly, even causes hydraulic fluid leak again.
Therefore, for avoiding above-mentioned technical problem, necessaryly provide a kind of structure improved Novel hydraulic cylinder that has, to overcome described defective of the prior art.
[model utility content]
For addressing the above problem, the purpose of this utility model is not to provide a kind of fixing firm, and is easy to wear, piston guide good and the Novel hydraulic cylinder of long service life.
For achieving the above object, the technological scheme that the utility model is taked is: a kind of Novel hydraulic cylinder, and it comprises cylinder barrel, piston and piston rod; Wherein, the inwall of described cylinder barrel is provided with some fins along the cylinder barrel bearing of trend; Described piston is contained in the cylinder barrel, and its surface offers the twice groove, is provided with a lubricated cotton in each groove; Further be provided with on the described piston for the guiding groove that holds mutually with fin; Described piston rod comprises rod body part, assembly department and screw section; The diameter of described rod body part, assembly department and screw section reduces successively; Described piston is installed on the described assembly department; Screwed togather a nut on the described screw section, in a side butt of nut one locating stud has been arranged, this locating stud penetrates described screw section.
Novel hydraulic cylinder of the present utility model further is set to: described rod body part, assembly department and screw section are integral structure.
Novel hydraulic cylinder of the present utility model further is set to: described piston is connected between rod body part and the nut.
Novel hydraulic cylinder of the present utility model further is set to: the surface in described piston further is provided with a ceramic layer.
Novel hydraulic cylinder of the present utility model further is set to: described guiding groove is specially 4.
Compared with prior art, the utlity model has following beneficial effect:
1. Novel hydraulic cylinder of the present utility model comes positioning piston by rod body part and nut, and the nut finger setting that is positioned again, thus make this piston rod can and the piston secure fit, difficult drop-off, the while also makes things convenient for the replacing of piston.
2. Novel hydraulic cylinder of the present utility model is lubricated cotton by arranging at piston, thereby has strengthened the lubrication effect between piston and the cylinder barrel, makes piston not easy to wear, and maintenance cost is low.
3. Novel hydraulic cylinder of the present utility model is by the cooperation of fin and guiding groove, thereby can play certain leading role to the motion of piston, prevents that piston from overturning because of unbalance stress, avoids the piston uneven wear, and greatly improved the working life of piston.
[description of drawings]
Fig. 1 is the structural representation of Novel hydraulic cylinder of the present utility model.
Fig. 2 is the sectional drawing of the piston of Novel hydraulic cylinder of the present utility model.
[embodiment]
See also shown in Figure of description 1 and the accompanying drawing 2, the utility model is a kind of Novel hydraulic cylinder, and it is mainly formed by a few part assemblings such as cylinder barrel 1, piston 2 and piston rod 3.
Wherein, the inwall of described cylinder barrel 1 is provided with some fins 11 along the bearing of trend of cylinder barrel 1.
Described piston 2 is contained in the cylinder barrel 1, and its surface offers twice groove 21, is provided with one lubricated cotton 22 in each groove 21.Lubricate cotton 22 by arranging at piston 2, thereby strengthened the lubrication effect between piston 2 and the cylinder barrel 1, make piston 2 not easy to wear.Also be provided with a ceramic layer 23 in the surface of described piston 2, and ceramic layer 23 improves the wear-resisting property of piston 2 greatly.Described piston 2 is provided with for the guiding groove 24 that holds mutually with fin 11.By the cooperation of fin 11 and guiding groove 24, thereby can play certain leading role to the motion of piston 2, prevent piston 2 because unbalance stress overturns, avoid piston 2 uneven wears, greatly improved the working life of piston 2.
Described piston rod 3 comprises rod body part 31, assembly department 32 and screw section 33.Wherein, described rod body part 31, assembly department 32 and screw section 33 are integral structure, and three's diameter reduces successively.Described piston 2 is installed on the described assembly department 32.Screwed togather a nut 34 on the described screw section 33, described piston 2 is connected between rod body part 31 and the nut 34.Side butt in nut 34 has a locating stud 35, and this locating stud 35 penetrates described screw section 33.Come positioning piston 2 by described rod body part 31 and nut 34, and nut 34 pin 35 location that is positioned again, thus make this piston rod 3 can and piston 2 secure fit, difficult drop-off, the while also makes things convenient for the replacing of piston 2.
Above embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within make any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.
Claims (5)
1. a Novel hydraulic cylinder is characterized in that: comprise cylinder barrel, piston and piston rod; Wherein, the inwall of described cylinder barrel is provided with some fins along the cylinder barrel bearing of trend; Described piston is contained in the cylinder barrel, and its surface offers the twice groove, is provided with a lubricated cotton in each groove; Further be provided with on the described piston for the guiding groove that holds mutually with fin; Described piston rod comprises rod body part, assembly department and screw section; The diameter of described rod body part, assembly department and screw section reduces successively; Described piston is installed on the described assembly department; Screwed togather a nut on the described screw section, in a side butt of nut one locating stud has been arranged, this locating stud penetrates described screw section.
2. Novel hydraulic cylinder as claimed in claim 1, it is characterized in that: described rod body part, assembly department and screw section are integral structure.
3. Novel hydraulic cylinder as claimed in claim 2, it is characterized in that: described piston is connected between rod body part and the nut.
4. Novel hydraulic cylinder as claimed in claim 3, it is characterized in that: the surface in described piston further is provided with a ceramic layer.
5. Novel hydraulic cylinder as claimed in claim 4, it is characterized in that: described guiding groove is specially 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202988553U CN202718954U (en) | 2012-06-17 | 2012-06-17 | Novel hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202988553U CN202718954U (en) | 2012-06-17 | 2012-06-17 | Novel hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718954U true CN202718954U (en) | 2013-02-06 |
Family
ID=47620778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202988553U Expired - Fee Related CN202718954U (en) | 2012-06-17 | 2012-06-17 | Novel hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557200A (en) * | 2013-11-22 | 2014-02-05 | 徐州徐工液压件有限公司 | Hydraulic cylinder with rotation resistant mechanism |
-
2012
- 2012-06-17 CN CN2012202988553U patent/CN202718954U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557200A (en) * | 2013-11-22 | 2014-02-05 | 徐州徐工液压件有限公司 | Hydraulic cylinder with rotation resistant mechanism |
| CN103557200B (en) * | 2013-11-22 | 2016-01-06 | 徐州徐工液压件有限公司 | A kind of oil hydraulic cylinder with anti-rotation mechanism |
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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: 20130206 Termination date: 20150617 |
|
| EXPY | Termination of patent right or utility model |