CN103267119A - Hydro-cylinder piston set block with structure easy to mount and dismount - Google Patents
Hydro-cylinder piston set block with structure easy to mount and dismount Download PDFInfo
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- CN103267119A CN103267119A CN2013101973386A CN201310197338A CN103267119A CN 103267119 A CN103267119 A CN 103267119A CN 2013101973386 A CN2013101973386 A CN 2013101973386A CN 201310197338 A CN201310197338 A CN 201310197338A CN 103267119 A CN103267119 A CN 103267119A
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Abstract
The invention relates to the field of engineering machinery, heavy machinery, transportation machinery and the like, and discloses a hydro-cylinder piston set block with a structure easy to mount and dismount. The hydro-cylinder piston set block comprises a first piston block, a second piston block, a third piston block and a fixing device, wherein the first piston block, the second piston block and the third piston block are sequentially installed on the left end plane of a hydro-cylinder piston rod. A first guiding ring is placed at the side end of the first piston block. Two lip-shaped sealing rings are placed at the side end of the second piston block, and an O-shaped ring is arranged on the other side of the second piston block. A second guiding ring is placed at the side end of the third piston block. The fixing device is installed on the piston rod, and is matched with the third piston block to be positioned. According to the hydro-cylinder piston set block with the structure easy to mount and dismount, a traditional structure of an original piston is broken, a split-type structure is adopted, so that when the surface of a piston or the sealing rings are damaged, the hydro-cylinder piston can be mounted, dismounted, checked, replaced and maintained fast, the maintaining time is shortened, operation is easy and reliable, and the hydro-cylinder piston set block is practical.
Description
Technical field
The present invention relates to fields such as engineering machinery, heavy machinery, Transport Machinery, particularly a kind of hydraulic cylinder piston chunk with structure easy to assemble is fit to the little seal ring of sealing material extending amount and the disassembly and assembly structure of elongated aperture seal ring.
Background technique
Hydraulic jack is a kind of application industrial automation arrangement very widely, and its kind and model are a lot, and piston structure also is varied.Mainly adopt the one-piece piston form now, its assembling, dismounting, maintenance are all very difficult.Along with the progress of industrial technology, hydraulic system is widely used in industries such as engineering construction, mining and engineering machinery.In the application of some engineering mechanical devices, as: bulldozer, excavator, loader etc., because work under bad environment, cause the scuffing of oil cylinder inner wall and piston face easily, these scratch the damage that directly causes Sealing, and oil cylinder piston structure dismounting at present is difficult, thereby causes oil cylinder to damage, scrap.Scrapping of oil cylinder will certainly be for increasing job costs.
Summary of the invention
The objective of the invention is: in order to solve in the above-mentioned prior art technical problem to hydraulic cylinder piston rod and seal ring dismounting poor effect, a kind of hydraulic cylinder piston chunk with structure easy to assemble is provided, broken the conventional construction of original piston, the wear out failure leakage takes place between piston face and oil cylinder inner wall after, can dismantle, check, change piston and the seal ring of oil cylinder, thereby avoid scrapping of whole oil cylinder.
For achieving the above object, the technical solution used in the present invention is: a kind of hydraulic cylinder piston chunk with structure easy to assemble is provided, comprise: be installed in first piston piece 4, second piston block 8, the 3rd piston block 9 on hydraulic cylinder piston rod 5 left sides successively, and fixing device; The side of described first piston piece 4 is provided with first guide ring 2; The side of described second piston block 8 is provided with two lip-type seal circles 6, is provided with an O type circle 7 at opposite side; The side of described the 3rd piston block 9 is provided with second guide ring; Described fixing device is installed on the piston rod 5, and cooperates the location with the 3rd piston block 9.
Wherein, the first piston piece 4 of described lip-type packing opening correspondence and the 3rd piston block 9 inside vertically are provided with oil duct 3.
Wherein, described a kind of hydraulic cylinder piston chunk with structure easy to assemble further is provided with conduit 14, and conduit 14 is installed on the positioning base 19 of cylinder barrel bottom, by lock bolt 18 and additional screws 17 common A/Cs 14.
Wherein, described fixing device is made up of snap ring 10, baffle ring 11, jump ring 12; Snap ring 10 is close to the axial freedom that the 3rd piston block 9 bottoms are installed in positioning piston assembly on the piston rod 5, and is assembled together with baffle ring 11 and plays positioning action, and jump ring 12 is fastened on the outside of baffle ring 11, stops moving axially of baffle ring 11; Guarantee sealing and the easy-to-dismount practicability of piston assembly thus, thereby realize piston chunk and seal ring dismounting quickly and easily and maintenance.
Wherein, the material of described baffle ring 11 is rubber material.
Wherein, described fixing device is made up of locking nut 16, elastic circlip 15, and locking nut 16 is close to the 3rd piston block 9 bottoms and is installed on the endoporus of piston rod 5, is used for the axial freedom of positioning piston assembly, and be assembled together with elastic collar 15, stop moving axially of locking nut 16; Guarantee sealing and the easy-to-dismount practicability of piston assembly thus, thereby realize piston chunk and seal ring dismounting quickly and easily and maintenance.
The invention has the beneficial effects as follows: beneficial effect of the present invention is embodied in oil cylinder and produces fault or periodical repair, in the time of must more changing maintenance hydraulic cylinder piston and seal ring.The present invention has broken the conventional construction of original piston, adopt the structural type of split, when piston face or seal ring go wrong, can carry out fast assembling-disassembling, inspection, replacing and maintenance to the piston of oil cylinder, shortened engineering time, simple to operate, reliable, practical.
Description of drawings
Fig. 1 is a kind of embodiment's 1 structural drawing with hydraulic cylinder piston chunk of structure easy to assemble of the present invention.
Fig. 2 is a kind of embodiment's 2 structural drawing with hydraulic cylinder piston chunk of structure easy to assemble of the present invention.
Accompanying drawing sign: 1-cylinder barrel, 2-the first guide ring, 3-oil duct, 4-first piston piece, 5-piston rod, 6-lip-type packing, 7-O type circle, 8-the second piston block, 9-the three piston block, 10-snap ring, 11-baffle ring, 12-jump ring, 13-cylinder bottom, 14-conduit, 15-elastic collar, 16-locking nut, 17-additional screws, 18-conduit lock bolt, 19-positioning base, 20-back-up ring.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
A kind of hydraulic cylinder piston chunk with structure easy to assemble of the present invention is mainly used in solving oil cylinder piston and seal ring dismounting and safeguards difficult problem.A kind of hydraulic cylinder piston chunk with structure easy to assemble of the present invention comprises: be installed in first piston piece 4, second piston block 8, the 3rd piston block 9 on hydraulic cylinder piston rod 5 left sides successively, and fixing device; The side of described first piston piece 4 is provided with first guide ring 2; The side of described second piston block 8 is provided with two lip-type seal circles 6, is provided with an O type circle 7 at opposite side; The side of described the 3rd piston block 9 is provided with second guide ring; Described fixing device is installed on the piston rod 5, and cooperates the location with the 3rd piston block 9.
The first piston piece 4 of described lip-type packing opening correspondence and the 3rd piston block 9 inside vertically are provided with oil duct 3.
Described a kind of hydraulic cylinder piston chunk with structure easy to assemble further is provided with conduit 14, and conduit 14 is installed on the positioning base 19 of cylinder barrel bottom, by lock bolt 18 and additional screws 17 common A/Cs 14.
Described fixing device is made up of snap ring 10, baffle ring 11, jump ring 12; Snap ring 10 is close to the axial freedom that the 3rd piston block 9 bottoms are installed in positioning piston assembly on the piston rod 5, and is assembled together with baffle ring 11 and plays positioning action, and jump ring 12 is fastened on the outside of baffle ring 11, stops moving axially of baffle ring 11; Guarantee sealing and the easy-to-dismount practicability of piston assembly thus, thereby realize piston chunk and seal ring dismounting quickly and easily and maintenance.
The material of described baffle ring 11 is rubber material.
Described fixing device is made up of locking nut 16, elastic circlip 15, locking nut 16 is close to the 3rd piston block 9 bottoms and is installed on the endoporus of piston rod 5, the axial freedom that is used for the positioning piston assembly, and be assembled together with elastic collar 15, moving axially of locking nut 16 stoped; Guarantee sealing and the easy-to-dismount practicability of piston assembly thus, thereby realize piston chunk and seal ring dismounting quickly and easily and maintenance.
Fig. 1 and Fig. 2 are according to two example structure schematic representation of the invention process.
With reference to Fig. 1, a kind of hydraulic cylinder piston chunk with structure easy to assemble, be fit to the less seal ring of sealing material extending amount, comprise: be provided with oil duct and first guide ring 2 first piston piece 4, be provided with lip-type packing 6 and O type circle 7 second piston block 8, be provided with the 3rd piston block 9, snap ring 10, baffle ring 11, the jump ring 12 of oil duct and second guide ring; The installation order of piston chunk is first piston piece 4, the second piston blocks 8, the 3rd piston block 9, snap ring 10, baffle ring 11, jump ring 12 successively.
Concrete installation process is: at first, first guide ring 2 is installed in first piston piece 4 sides, the first piston piece 4 that further will install first guide ring 2 is installed on the piston rod 5; Then, two lip-type packings 6 and O type circle 7 are installed in the two ends of second piston block 8 respectively, further mounted second piston block 8 are installed on the piston rod 5; At last, second guide ring is installed on the 3rd piston block 9, the piston block 9 that further will install second guide ring is installed on the piston rod 5.First piston piece 4, second piston block 8, the 3rd piston block 9 install at this moment, snap ring 10, baffle ring 11 and jump ring 12 are installed at last successively, the installation of piston chunk.
Unloading process is opposite with installation process, pulls down jump ring 12, shelves ring 11, snap ring 10, the 3rd piston block 9, second piston block 8, first piston piece 4 successively, and dismounting is finished.
Lip-type packing 6 is seal rings of a kind of self sealing action, relies on lip to be close to piston inner wall, stops up leakage way and obtains sealing effect.Working pressure by the fluid in the oil duct 3 struts lip, fits with sealing surface more closely, and sealing is further strengthened.O RunddichtringO 7 is used for preventing that the fluid between cylinder rod chamber and the rodless cavity is oily by the string of the slit between piston and the piston rod.Baffle ring 11 and snap ring 10 and jump ring 12 have limited the axial freedom of piston chunk.
With reference to Fig. 2, a kind of hydraulic cylinder piston chunk with structure easy to assemble, be fit to the seal ring of elongated aperture, comprise: be provided with first guide ring 2 first piston piece 4, be provided with lip-type packing 6 and O type circle 7 second piston block 8, be provided with the 3rd piston block 9, elastic circlip 15, the locking nut 16 of second guide ring; The erection sequence of piston chunk is first piston piece 4, second piston block 8, the 3rd piston block 9, locking nut 16 successively, elastic collar 15.
Concrete installation process is: at first first guide ring 2 is installed on the first piston piece 4, further mounted first piston piece 4 is installed on the piston rod 5; Then, two lip seal 6 and O type circle 7 are installed on second piston block 8, further on the piston rod 5 of mounted second piston block 8 installations; At last, second guide ring is installed on the 3rd piston block 9, the 3rd piston block 9 that installs second guide ring is installed on the piston rod 5, first piston piece 4, second piston block 8, the 3rd piston block 9 install at this moment, locking nut 16 and elastic circlip 15 are installed at last successively, the installation of piston chunk.Locking nut 16 and snap ring 15 have limited the axial freedom of piston chunk, and conduit 14 is installed at last.
Unloading process is opposite with installation process, pulls down conduit 14 successively, snap ring 15, locking nut 16, the 3rd piston block 9, second piston block 8, first piston piece 4, and dismounting is finished.
Above content be in conjunction with optimal technical scheme to further describing that the present invention does, can not assert that the concrete enforcement of invention only limits to these explanations.Concerning the general technical staff of the technical field of the invention, under the prerequisite that does not break away from design of the present invention, can also make simple deduction and replacement, all should be considered as protection scope of the present invention.
Claims (6)
1. hydraulic cylinder piston chunk with structure easy to assemble, it is characterized in that, described a kind of hydraulic cylinder piston chunk with structure easy to assemble comprises: be installed in first piston piece (4), second piston block (8), the 3rd piston block (9) on hydraulic cylinder piston rod (5) left side successively, and fixing device; The side of described first piston piece (4) is provided with first guide ring (2); The side of described second piston block (8) is provided with two lip-type seal circles (6), is provided with an O type circle (7) at opposite side; The side of described the 3rd piston block (9) is provided with second guide ring; Described fixing device is installed on the piston rod (5), and cooperates the location with the 3rd piston block (9).
2. a kind of hydraulic cylinder piston chunk with structure easy to assemble according to claim 1 is characterized in that, the first piston piece (4) of described lip-type packing opening correspondence and the 3rd piston block (9) inside vertically are provided with oil duct (3).
3. a kind of hydraulic cylinder piston chunk with structure easy to assemble according to claim 1, it is characterized in that, described a kind of hydraulic cylinder piston chunk with structure easy to assemble further is provided with conduit (14), conduit (14) is installed on the positioning base (19) of cylinder barrel bottom, comes common A/C (14) by lock bolt (18) and additional screws (17).
4. a kind of hydraulic cylinder piston chunk with structure easy to assemble according to claim 1 is characterized in that, described fixing device is made up of snap ring (10), baffle ring (11), jump ring (12); Snap ring (10) is close to the 3rd piston block (9) bottom and is installed on the piston rod (5), and is assembled together with baffle ring (11), and jump ring (12) is fastened on the outside of baffle ring (11).
5. a kind of hydraulic cylinder piston chunk with structure easy to assemble according to claim 4 is characterized in that the material of described baffle ring (11) is rubber material.
6. a kind of hydraulic cylinder piston chunk with structure easy to assemble according to claim 1, it is characterized in that, described fixing device is made up of locking nut (16), elastic circlip (15), locking nut (16) is close to the 3rd piston block (9) bottom and is installed on the endoporus of piston rod (5), and is assembled together with elastic collar (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310197338.6A CN103267119B (en) | 2013-05-24 | 2013-05-24 | A kind of hydraulic cylinder piston chunk with structure easy to assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310197338.6A CN103267119B (en) | 2013-05-24 | 2013-05-24 | A kind of hydraulic cylinder piston chunk with structure easy to assemble |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267119A true CN103267119A (en) | 2013-08-28 |
| CN103267119B CN103267119B (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310197338.6A Expired - Fee Related CN103267119B (en) | 2013-05-24 | 2013-05-24 | A kind of hydraulic cylinder piston chunk with structure easy to assemble |
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| CN (1) | CN103267119B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481874A (en) * | 2014-11-27 | 2015-04-01 | 上海轩安环保科技有限公司 | Herringbone gear pump |
| CN105889169A (en) * | 2014-11-13 | 2016-08-24 | 杨双来 | Hydraulic oil cylinder sectional type piston and mounting method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2199950A (en) * | 1937-02-01 | 1940-05-07 | Flinchum William Weldon | Piston |
| JPH10259806A (en) * | 1997-03-19 | 1998-09-29 | Murata Mach Ltd | Fluid cylinder |
| US5839353A (en) * | 1997-06-19 | 1998-11-24 | Mecham; Lynn | Piston for a hydraulic ram and the like and method for its assembly onto a piston rod |
| CN2557260Y (en) * | 2002-06-27 | 2003-06-25 | 宝山钢铁股份有限公司 | Rotary oil tank for uncoiler |
| CN101149116A (en) * | 2006-09-22 | 2008-03-26 | 上海中欧汽车电器有限公司 | Piston sealing structure of inner servo-actuated hydraulic cylinder |
| CN201621259U (en) * | 2009-12-10 | 2010-11-03 | 上海中欧汽车电器有限公司 | Split type piston |
-
2013
- 2013-05-24 CN CN201310197338.6A patent/CN103267119B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2199950A (en) * | 1937-02-01 | 1940-05-07 | Flinchum William Weldon | Piston |
| JPH10259806A (en) * | 1997-03-19 | 1998-09-29 | Murata Mach Ltd | Fluid cylinder |
| US5839353A (en) * | 1997-06-19 | 1998-11-24 | Mecham; Lynn | Piston for a hydraulic ram and the like and method for its assembly onto a piston rod |
| CN2557260Y (en) * | 2002-06-27 | 2003-06-25 | 宝山钢铁股份有限公司 | Rotary oil tank for uncoiler |
| CN101149116A (en) * | 2006-09-22 | 2008-03-26 | 上海中欧汽车电器有限公司 | Piston sealing structure of inner servo-actuated hydraulic cylinder |
| CN201621259U (en) * | 2009-12-10 | 2010-11-03 | 上海中欧汽车电器有限公司 | Split type piston |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889169A (en) * | 2014-11-13 | 2016-08-24 | 杨双来 | Hydraulic oil cylinder sectional type piston and mounting method |
| CN104481874A (en) * | 2014-11-27 | 2015-04-01 | 上海轩安环保科技有限公司 | Herringbone gear pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267119B (en) | 2015-09-16 |
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Granted publication date: 20150916 Termination date: 20180524 |