CN103267119B - A kind of hydraulic cylinder piston chunk with structure easy to assemble - Google Patents
A kind of hydraulic cylinder piston chunk with structure easy to assemble Download PDFInfo
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- CN103267119B CN103267119B CN201310197338.6A CN201310197338A CN103267119B CN 103267119 B CN103267119 B CN 103267119B CN 201310197338 A CN201310197338 A CN 201310197338A CN 103267119 B CN103267119 B CN 103267119B
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- piston block
- hydraulic cylinder
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- ring
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Abstract
The present invention relates to the fields such as engineering machinery, heavy machinery, Transport Machinery, disclose a kind of hydraulic cylinder piston chunk with structure easy to assemble to comprise: be arranged on the first piston block on hydraulic cylinder piston rod left side, the second piston block, the 3rd piston block successively, and fixing device; The side of described first piston block is provided with the first guide ring; The side of described second piston block is provided with two lip-shaped sealed rings, is provided with an O type circle at opposite side; The side of described 3rd piston block is provided with the second guide ring; Described fixing device is installed on the piston rod, and coordinates with the 3rd piston block and locate.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, fast assembling-disassembling, inspection, replacing and maintenance can be carried out to the piston of oil cylinder, shorten engineering time, simple to operate, reliable, practical.
Description
Technical field
The present invention relates to the fields such as engineering machinery, heavy machinery, Transport Machinery, particularly a kind of hydraulic cylinder piston chunk with structure easy to assemble, be applicable to the disassembly and assembly structure of the little seal ring of sealing material extending amount and thin long eyelet seal ring.
Background technique
Hydraulic jack is a kind of application industrial automation arrangement very widely, and a lot, piston structure is also varied for its kind and model.Now mainly adopt one-piece piston form, its assembling, dismounting, maintenance are all very difficult.Along with the progress of industrial technology, hydraulic system is widely used in the industries such as engineering construction, mining and engineering machinery.In the application of some engineering mechanical devices, as: bulldozer, excavator, loader etc., due to work under bad environment, easily cause the scuffing of oil cylinder inner wall and piston face, these scratch the damage directly causing Sealing, and oil cylinder piston structure dismounting is at present more difficult, thus oil cylinder is caused to damage, scrap.Scrapping of oil cylinder will certainly for increasing job costs.
Summary of the invention
The object of the invention is: in order to solve the technical problem to hydraulic cylinder piston rod and seal ring dismounting poor effect in above-mentioned prior art, provide a kind of hydraulic cylinder piston chunk with structure easy to assemble, break the conventional construction of original piston, there is wear out failure leakage between piston face and oil cylinder inner wall after, can the piston of oil cylinder and seal ring be dismantled, check, be changed, thus avoid scrapping of whole oil cylinder.
For achieving the above object, the technical solution used in the present invention is: provide a kind of hydraulic cylinder piston chunk with structure easy to assemble, comprise: be arranged on first piston block 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 block 4 is provided with the first guide ring 2; The side of described second piston block 8 is provided with two lip-shaped sealed rings 6, is provided with an O type circle 7 at opposite side; The side of described 3rd piston block 9 is provided with the second guide ring; Described fixing device is arranged on piston rod 5, and coordinates with the 3rd piston block 9 and locate.
Wherein, the first piston block 4 that described lip-type packing opening is corresponding and the 3rd piston block 9 inside are longitudinally provided with oil duct 3.
Wherein, described a kind of hydraulic cylinder piston chunk with structure easy to assemble is provided with conduit 14 further, and conduit 14 is arranged on the positioning base 19 bottom cylinder barrel, by lock bolt 18 and the common A/C 14 of additional screws 17.
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 being arranged on positioning piston assembly on piston rod 5 bottom the 3rd piston block 9, 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; Ensure the sealing of piston assembly and easy-to-dismount practicability thus, thus realize piston chunk and seal ring can 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 bottom the 3rd piston block 9 and is arranged on the endoporus of piston rod 5, for the axial freedom of positioning piston assembly, and be assembled together with elastic collar 15, stop moving axially of locking nut 16; Ensure the sealing of piston assembly and easy-to-dismount practicability thus, thus realize piston chunk and seal ring can 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, must more when 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, fast assembling-disassembling, inspection, replacing and maintenance can be carried out to the piston of oil cylinder, shorten engineering time, simple to operate, reliable, practical.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment 1 structural drawing with the hydraulic cylinder piston chunk of structure easy to assemble of the present invention.
Fig. 2 is a kind of embodiment 2 structural drawing with the hydraulic cylinder piston chunk of structure easy to assemble of the present invention.
Accompanying drawing identifies: 1-cylinder barrel, the 2-the first guide ring, 3-oil duct, 4-first piston block, 5-piston rod, 6-lip-type packing, 7-O type circle, the 8-the second piston block, the 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
Below in conjunction with drawings and Examples, the present invention is described in detail.
A kind of hydraulic cylinder piston chunk with structure easy to assemble of the present invention is mainly used in the problem solving oil cylinder piston and seal ring dismounting and Maintenance Difficulty.A kind of hydraulic cylinder piston chunk with structure easy to assemble of the present invention, comprising: be arranged on first piston block 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 block 4 is provided with the first guide ring 2; The side of described second piston block 8 is provided with two lip-shaped sealed rings 6, is provided with an O type circle 7 at opposite side; The side of described 3rd piston block 9 is provided with the second guide ring; Described fixing device is arranged on piston rod 5, and coordinates with the 3rd piston block 9 and locate.
The first piston block 4 that described lip-type packing opening is corresponding and the 3rd piston block 9 inside are longitudinally provided with oil duct 3.
Described a kind of hydraulic cylinder piston chunk with structure easy to assemble is provided with conduit 14 further, and conduit 14 is arranged on the positioning base 19 bottom cylinder barrel, by lock bolt 18 and the common A/C 14 of additional screws 17.
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 being arranged on positioning piston assembly on piston rod 5 bottom the 3rd piston block 9, 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; Ensure the sealing of piston assembly and easy-to-dismount practicability thus, thus realize piston chunk and seal ring can 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 bottom the 3rd piston block 9 and is arranged on the endoporus of piston rod 5, for the axial freedom of positioning piston assembly, and be assembled together with elastic collar 15, stop moving axially of locking nut 16; Ensure the sealing of piston assembly and easy-to-dismount practicability thus, thus realize piston chunk and seal ring can dismounting quickly and easily and maintenance.
Fig. 1 and Fig. 2 is according to two example structure schematic diagram of the invention process.
With reference to Fig. 1, a kind of hydraulic cylinder piston chunk with structure easy to assemble, be applicable to the seal ring that sealing material extending amount is less, comprise: the 3rd piston block 9, snap ring 10, baffle ring 11, the jump ring 12 that are provided with the first piston block 4 of oil duct and the first guide ring 2, are provided with the second piston block 8 of lip-type packing 6 and O type circle 7, are provided with oil duct and the second guide ring; The installation order of piston chunk is first piston block 4, second piston block 8, the 3rd piston block 9, snap ring 10, baffle ring 11, jump ring 12 successively.
Concrete installation process is: first, and the first guide ring 2 is arranged on first piston block 4 side, is arranged on piston rod 5 further by the first piston block 4 installing the first guide ring 2; Then, two lip-type packings 6 and O type circle 7 are arranged on respectively the two ends of the second piston block 8, further mounted second piston block 8 are arranged on piston rod 5; Finally, the second guide ring is arranged on the 3rd piston block 9, further the piston block 9 installing the second guide ring is arranged on piston rod 5.Now first piston block 4, second piston block 8, the 3rd piston block 9 install, and finally install snap ring 10, baffle ring 11 and jump ring 12 successively, the installation of piston chunk.
Unloading process is contrary with installation process, and pull down jump ring 12, shelves ring 11, snap ring 10, the 3rd piston block 9, second piston block 8, first piston block 4 successively, dismounting completes.
Lip-type packing 6 is seal rings of a kind of self sealing action, relies on lip to be close to piston inner wall, blocks leakage way and obtain sealing effect.Strutted by lip by the working pressure of the fluid in oil duct 3, fit with sealing surface more closely, sealing is strengthened further.O RunddichtringO 7 is for preventing the fluid between cylinder rod chamber and rodless cavity oily by the gap string between piston and piston rod.Baffle ring 11 limits the axial freedom of piston chunk with snap ring 10 and jump ring 12.
With reference to Fig. 2, a kind of hydraulic cylinder piston chunk with structure easy to assemble, be applicable to the seal ring of thin long eyelet, comprise: be provided with the first piston block 4 of the first guide ring 2, be provided with the second piston block 8 of lip-type packing 6 and O type circle 7, be provided with the 3rd piston block 9, elastic circlip 15, the locking nut 16 of the second guide ring; The erection sequence of piston chunk is first piston block 4, second piston block 8, the 3rd piston block 9, locking nut 16 successively, elastic collar 15.
Concrete installation process is: be first arranged on first piston block 4 by the first guide ring 2, is arranged on piston rod 5 further by mounted first piston block 4; Then, two lip seal 6 and O type circle 7 are arranged on the second piston block 8, on the piston rod 5 further mounted second piston block 8 installed; Finally, second guide ring is arranged on the 3rd piston block 9, the 3rd piston block 9 installing the second guide ring is arranged on piston rod 5, now first piston block 4, second piston block 8, the 3rd piston block 9 install, last installation locking nut 16 and elastic circlip 15 successively, the installation of piston chunk.Locking nut 16 and snap ring 15 limit the axial freedom of piston chunk, finally install conduit 14.
Unloading process is contrary with installation process, pulls down conduit 14 successively, and snap ring 15, locking nut 16, the 3rd piston block 9, second piston block 8, first piston block 4, dismounting completes.
Above content is the further description done the present invention in conjunction with optimal technical scheme, can not assert that the concrete enforcement of invention is only limitted to these explanations.Concerning general technical staff of the technical field of the invention, under the prerequisite not departing from design of the present invention, simple deduction and replacement can also be made, all should be considered as protection scope of the present invention.
Claims (4)
1. one kind has the hydraulic cylinder piston chunk of structure easy to assemble, it is characterized in that, described a kind of hydraulic cylinder piston chunk with structure easy to assemble comprises: be arranged on the first piston block (4) on hydraulic cylinder piston rod (5) left side, the second piston block (8), the 3rd piston block (9) successively, and fixing device; The outboard end of described first piston block (4) is provided with the first guide ring (2); The outboard end of described second piston block (8) is provided with two lip-type packings (6), and the medial extremity of described second piston block (8) is provided with an O type circle (7); The outboard end of described 3rd piston block (9) is provided with the second guide ring; Described fixing device is arranged on piston rod (5), and coordinates with the 3rd piston block (9) and locate; The first piston block (4) that described lip-type packing opening is corresponding and the 3rd piston block (9) inside are longitudinally provided with oil duct (3);
Described a kind of hydraulic cylinder piston chunk with structure easy to assemble is also provided with conduit (14), and conduit (14) is arranged on the positioning base (19) bottom cylinder barrel, carrys out common A/C (14) by lock bolt (18) and additional screws (17).
2. 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 arranged on piston rod (5), and is assembled together with baffle ring (11), and jump ring (12) is fastened on the outside of baffle ring (11).
3. a kind of hydraulic cylinder piston chunk with structure easy to assemble according to claim 2, is characterized in that, the material of described baffle ring (11) is rubber material.
4. 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 arranged on the endoporus of piston rod (5), and is assembled together with elastic circlip (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 CN103267119A (en) | 2013-08-28 |
| CN103267119B true CN103267119B (en) | 2015-09-16 |
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| 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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| Country | Link |
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| CN (1) | CN103267119B (en) |
Families Citing this family (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 |
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 |
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| Publication number | Publication date |
|---|---|
| CN103267119A (en) | 2013-08-28 |
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Granted publication date: 20150916 Termination date: 20180524 |