CN105257626A - Piston connection anti-looseness structure used for hydraulic cylinder - Google Patents
Piston connection anti-looseness structure used for hydraulic cylinder Download PDFInfo
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- CN105257626A CN105257626A CN201510757341.8A CN201510757341A CN105257626A CN 105257626 A CN105257626 A CN 105257626A CN 201510757341 A CN201510757341 A CN 201510757341A CN 105257626 A CN105257626 A CN 105257626A
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- piston
- hydraulic cylinder
- steel ball
- piston rod
- connection anti
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Abstract
The invention discloses a piston connection anti-looseness structure used for a hydraulic cylinder. The piston connection anti-looseness structure used for the hydraulic cylinder comprises a piston rod, a cylinder barrel and a piston, wherein the piston rod is inserted into the cylinder barrel; the piston is connected to the piston rod through a thread structure; a sealing assembly is arranged between the piston and the inner wall of the cylinder barrel; an annular groove is formed in the piston rod; a locking steel ball is arranged inside the annular groove and is fixed through a locking assembly arranged on one end portion of the piston. The piston connection anti-looseness structure used for the hydraulic cylinder combines friction looseness prevention and mechanical looseness prevention together, not only has the advantage of being high in safety and reliability of mechanical looseness prevention, but also has the advantages of being convenient to detach and the like during friction looseness prevention, and is convenient to install, maintain and replace.
Description
Technical field
The present invention relates to a kind of oil hydraulic cylinder, particularly relate to a kind of piston connection anti-loose structure for oil hydraulic cylinder.
Background technique
At present, piston many employings worm structure of existing oil hydraulic cylinder is connected on piston rod, and this Placement, in hydraulic cylinder works process, often occurs that piston gets loose, and affects the normal use of oil hydraulic cylinder.
Summary of the invention
The object of the present invention is to provide a kind of piston connection anti-loose structure for oil hydraulic cylinder, its structure is simple and guarantee the feature that piston does not get loose, to solve in prior art for the problems referred to above that the piston coupling structure of oil hydraulic cylinder exists.
For reaching this object, the present invention by the following technical solutions:
A kind of piston connection anti-loose structure for oil hydraulic cylinder, it comprises piston rod, cylinder barrel and piston, described piston rod inserts in described cylinder barrel, described piston is connected on described piston rod by worm structure, be provided with black box between the inwall of described piston and described cylinder barrel, wherein, described piston rod offer an annular groove, be provided with a locking steel ball in described annular groove, described locking steel ball is fixed by the end latch assembly being arranged at described piston.
Especially, the center eccentric setting of described locking steel ball and described piston rod.
Especially, the two side of described annular groove has for carrying out to locking steel ball the friction angle of wedge of locating that rubs.
Especially, described latch assembly comprises the tapped hole that corresponding locking steel ball position is opened in the end of described piston, and be provided with fastening screw trip bolt in described tapped hole, after described fastening screw trip bolt screws in tapped hole, its end holds out against described locking steel ball.
Especially, described black box is combined by rectangular seal, v-ring, O-ring seals and y-shaped ring.
Beneficial effect of the present invention is, compared with prior art the described piston connection anti-loose structure for oil hydraulic cylinder combines locking for friction with machinery is locking, not only there is the advantage that mechanical locking safety reliability is high, simultaneously, have again the advantages such as the locking convenient disassembly of friction, convenient operation is changed in its installation, maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the piston connection anti-loose structure for oil hydraulic cylinder that the specific embodiment of the invention 1 provides;
Fig. 2 be in Fig. 1 A-A to sectional drawing.
In figure:
1, piston rod; 2, cylinder barrel; 3, piston; 4, annular groove; 5, steel ball is locked; 6, tapped hole; 7, fastening screw trip bolt; 8, black box.
Embodiment
Technological scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Refer to shown in Fig. 1 and Fig. 2, in the present embodiment, a kind of piston connection anti-loose structure for oil hydraulic cylinder comprises piston rod 1, cylinder barrel 2 and piston 3, described piston rod 1 inserts in described cylinder barrel 2, described piston 3 is connected on described piston rod 1 by worm structure, described piston rod 1 offers an annular groove 4, be provided with a locking steel ball 5 in described annular groove 4, described locking steel ball 5 is fixed by the end latch assembly being arranged at described piston 3.Described latch assembly comprises the tapped hole 6 that corresponding locking steel ball 5 position is opened in the end of described piston 3, and be provided with fastening screw trip bolt 7 in described tapped hole 6, after described fastening screw trip bolt 7 screws in tapped hole 6, its end holds out against described locking steel ball 5.
The center eccentric setting of described locking steel ball 5 and described piston rod 1, the two side of described annular groove 4 has for carrying out to locking steel ball 5 the friction angle of wedge of locating that rubs.
Be provided with black box 8 between described piston 3 and the inwall of described cylinder barrel 2, described black box 8 is combined according to certain spread pattern by rectangular seal, v-ring, O-ring seals and y-shaped ring.Certainly also can carry out different spread patterns by the seal ring of multiple other types to combine.
Above embodiment has just set forth basic principle of the present invention and characteristic; the present invention does not limit by above-mentioned example; without departing from the spirit and scope of the present invention, the present invention also has various change and change, and these changes and change all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. the piston connection anti-loose structure for oil hydraulic cylinder, it comprises piston rod, cylinder barrel and piston, described piston rod inserts in described cylinder barrel, described piston is connected on described piston rod by worm structure, be provided with black box between the inwall of described piston and described cylinder barrel, it is characterized in that, described piston rod offers an annular groove, be provided with a locking steel ball in described annular groove, described locking steel ball is fixed by the end latch assembly being arranged at described piston.
2. the piston connection anti-loose structure for oil hydraulic cylinder according to claim 1, is characterized in that, the center eccentric setting of described locking steel ball and described piston rod.
3. the piston connection anti-loose structure for oil hydraulic cylinder according to claim 1, is characterized in that, the two side of described annular groove has for carrying out to locking steel ball the friction angle of wedge of locating that rubs.
4. the piston connection anti-loose structure for oil hydraulic cylinder according to claim 1, it is characterized in that, described latch assembly comprises the tapped hole that corresponding locking steel ball position is opened in the end of described piston, be provided with fastening screw trip bolt in described tapped hole, after described fastening screw trip bolt screws in tapped hole, its end holds out against described locking steel ball.
5. the piston connection anti-loose structure for oil hydraulic cylinder according to claim 1, it is characterized in that, described black box is combined by rectangular seal, v-ring, O-ring seals and y-shaped ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757341.8A CN105257626A (en) | 2015-11-09 | 2015-11-09 | Piston connection anti-looseness structure used for hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757341.8A CN105257626A (en) | 2015-11-09 | 2015-11-09 | Piston connection anti-looseness structure used for hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105257626A true CN105257626A (en) | 2016-01-20 |
Family
ID=55097492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510757341.8A Pending CN105257626A (en) | 2015-11-09 | 2015-11-09 | Piston connection anti-looseness structure used for hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105257626A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715612A (en) * | 2016-04-26 | 2016-06-29 | 合肥长源液压股份有限公司 | Throttling buffer cylinder with integrated buffer cylinder bottom |
| CN111188850A (en) * | 2018-11-15 | 2020-05-22 | 通用电气公司 | Actuator fault fixing system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201372982Y (en) * | 2009-03-30 | 2009-12-30 | 彭学卿 | Novel hydraulic cylinder |
| CN201575001U (en) * | 2009-10-28 | 2010-09-08 | 海克力斯(上海)液压机械有限公司 | Lateral locking structural device for hydrocylinder piston of loader |
| CN201636310U (en) * | 2010-01-29 | 2010-11-17 | 湖南特力液压有限公司 | Piston mechanism for hydraulic cylinder |
| CN203051301U (en) * | 2012-12-30 | 2013-07-10 | 山东锐驰机械有限公司 | Hydraulic cylinder piston loose-preventing device |
| CN204312454U (en) * | 2014-11-21 | 2015-05-06 | 福建省龙岩液压集团有限公司 | The fixed anti-loosening device of piston of easy care steel ball easy to process |
| CN205260489U (en) * | 2015-11-09 | 2016-05-25 | 无锡市长江液压缸厂 | A hinge joint anti loosening structure for pneumatic cylinder |
-
2015
- 2015-11-09 CN CN201510757341.8A patent/CN105257626A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201372982Y (en) * | 2009-03-30 | 2009-12-30 | 彭学卿 | Novel hydraulic cylinder |
| CN201575001U (en) * | 2009-10-28 | 2010-09-08 | 海克力斯(上海)液压机械有限公司 | Lateral locking structural device for hydrocylinder piston of loader |
| CN201636310U (en) * | 2010-01-29 | 2010-11-17 | 湖南特力液压有限公司 | Piston mechanism for hydraulic cylinder |
| CN203051301U (en) * | 2012-12-30 | 2013-07-10 | 山东锐驰机械有限公司 | Hydraulic cylinder piston loose-preventing device |
| CN204312454U (en) * | 2014-11-21 | 2015-05-06 | 福建省龙岩液压集团有限公司 | The fixed anti-loosening device of piston of easy care steel ball easy to process |
| CN205260489U (en) * | 2015-11-09 | 2016-05-25 | 无锡市长江液压缸厂 | A hinge joint anti loosening structure for pneumatic cylinder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715612A (en) * | 2016-04-26 | 2016-06-29 | 合肥长源液压股份有限公司 | Throttling buffer cylinder with integrated buffer cylinder bottom |
| CN111188850A (en) * | 2018-11-15 | 2020-05-22 | 通用电气公司 | Actuator fault fixing system |
| CN111188850B (en) * | 2018-11-15 | 2022-05-10 | 通用电气公司 | Actuator fault fixing system |
| US11365825B2 (en) | 2018-11-15 | 2022-06-21 | General Electric Company | Actuator fail fix system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |