CN201443547U - Long-stroke double pilot sleeve type multi-stage hydraulic cylinder - Google Patents
Long-stroke double pilot sleeve type multi-stage hydraulic cylinder Download PDFInfo
- Publication number
- CN201443547U CN201443547U CN2009200313320U CN200920031332U CN201443547U CN 201443547 U CN201443547 U CN 201443547U CN 2009200313320 U CN2009200313320 U CN 2009200313320U CN 200920031332 U CN200920031332 U CN 200920031332U CN 201443547 U CN201443547 U CN 201443547U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- hydraulic cylinder
- guide ring
- long
- metal guide
- Prior art date
Links
- 239000002184 metals Substances 0.000 claims abstract description 13
- 229910052751 metals Inorganic materials 0.000 claims abstract description 13
- 229910052755 nonmetals Inorganic materials 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 280000370113 Mines companies 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 238000005242 forging Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 239000003921 oils Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000000903 blocking Effects 0.000 description 2
- 239000000463 materials Substances 0.000 description 2
- 238000000034 methods Methods 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 229920002866 paraformaldehydes Polymers 0.000 description 1
Abstract
Description
Technical field
The utility model belongs to a kind of hydraulic element, specifically, relates in particular to the two guide sleeve type multistage hydraulic cylinders of a kind of long stroke.
Background technique
Existing oil hydraulic cylinder often adopts upper end non-metal guide or sleeve itself to carry out work as the mode of guiding; non-metal guide as main supporting has enough bearing strengths in the course of the work; protect Sealing and sleeve surface effectively; but when bearing larger side to power or unbalance loading; because of stroke oversize; if do not have enough supporting guiding to occur bending and deformation easily, cause the accident, so that working stability be relatively poor.At present, also there is not a kind of oil hydraulic cylinder under the situation of long stroke, still can keep the stability of work.
Summary of the invention
In order to solve the defective of oil hydraulic cylinder job insecurity in long stroke in the prior art, the utility model provides a kind of sleeve-type hydraulic cylinder of long stroke.
The utility model is achieved through the following technical solutions:
The two guide sleeve type multistage hydraulic cylinders of a kind of long stroke, it comprises sleeve, be provided with in the sleeve axle with card key, hole with card key and Sealing, an end of sleeve be provided with as leading to the non-metal guide ring, the other end of sleeve is provided with the metal guide ring as floating guiding.
The cross section of metal guide ring preferably is " protruding " font and embeds the external diameter of sleeve.
Compared with prior art, the beneficial effects of the utility model are: because the existence of metal guide ring, make that oil hydraulic cylinder can both guarantee to have enough support guiding in entire work process, when bearing lateral force and unbalance loading, under the supporting role of non-metal guide, the metal guide ring cooperates with the sleeve endoporus, thereby makes oil hydraulic cylinder operation stably under the supporting of two guiding.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing A of Fig. 1;
Fig. 3 is the partial enlarged drawing B of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
1, metal guide ring; 2, axle is with blocking key; 3, sleeve; 4, the hole is with blocking key; 5, Sealing; 6, non-metal guide ring.The two guide sleeve type multistage hydraulic cylinders of a kind of long stroke, it comprises sleeve 3, be provided with in the sleeve 3 axle with card key 2, hole with card key 4 and Sealing 5, an end of sleeve 3 be provided with as leading to non-metal guide ring 6, the other end of sleeve 3 is provided with the metal guide ring 1 as floating guiding.
Metal guide ring 1 is to be made by ductile cast iron material; Non-metal guide ring 6 is to be made by the polyformaldehyde material with sufficient intensity and wear-resistant self-lubricating performance, in the performance that axially and radially can both effectively protect Sealing 5.
When the utility model is worked, under the situation of lateral force and unbalance loading, under the effect of non-metal guide ring 6, owing to be Spielpassung, sleeve 3 has trickle swing, thereby the metal guide ring 1 of lower end is contacted with the endoporus of higher level's sleeve, and metal guide ring 1 play supporting role, thereby reaches the support effect of two guiding.Higher level's sleeve is when stroke stops, and under the effect of hole with card key 4, subordinate's sleeve begins to stretch out axle, is repeating the action of higher level's sleeve, stops until stroke with card key 2.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200313320U CN201443547U (en) | 2009-08-07 | 2009-08-07 | Long-stroke double pilot sleeve type multi-stage hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200313320U CN201443547U (en) | 2009-08-07 | 2009-08-07 | Long-stroke double pilot sleeve type multi-stage hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443547U true CN201443547U (en) | 2010-04-28 |
Family
ID=42548224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200313320U CN201443547U (en) | 2009-08-07 | 2009-08-07 | Long-stroke double pilot sleeve type multi-stage hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443547U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032234A (en) * | 2011-01-06 | 2011-04-27 | 无锡新贝来液压有限公司 | Front cylinder with bottom connected through clip keys |
| CN102102691A (en) * | 2011-03-20 | 2011-06-22 | 湖北佳恒科技有限公司 | Telescopic sleeve hydraulic cylinder for dump truck |
| EP2584204A1 (en) * | 2011-10-20 | 2013-04-24 | Hyva Holding BV | A telescopic hydraulic cylinder |
| CN103111572A (en) * | 2013-02-02 | 2013-05-22 | 湖南千跃机械制造有限公司 | Rail wheel forging machine and production method of rail wheels |
| CN103711744A (en) * | 2013-12-31 | 2014-04-09 | 一重集团大连设计研究院有限公司 | Horizontal split-structure large-stroke plunger cylinder |
| CN103925258A (en) * | 2014-04-30 | 2014-07-16 | 徐州徐工液压件有限公司 | Dumper and multi-stage hydraulic cylinder of dumper |
-
2009
- 2009-08-07 CN CN2009200313320U patent/CN201443547U/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032234A (en) * | 2011-01-06 | 2011-04-27 | 无锡新贝来液压有限公司 | Front cylinder with bottom connected through clip keys |
| CN102102691A (en) * | 2011-03-20 | 2011-06-22 | 湖北佳恒科技有限公司 | Telescopic sleeve hydraulic cylinder for dump truck |
| EP2584204A1 (en) * | 2011-10-20 | 2013-04-24 | Hyva Holding BV | A telescopic hydraulic cylinder |
| EP2584203A1 (en) * | 2011-10-20 | 2013-04-24 | Hyva Holding BV | A telescopic hydraulic cylinder |
| US20130098241A1 (en) * | 2011-10-20 | 2013-04-25 | Hyva Holding Bv | A telescopic hydraulic cylinder |
| CN103122890A (en) * | 2011-10-20 | 2013-05-29 | 海瓦控股有限公司 | A telescopic hydraulic cylinder |
| US9371846B2 (en) * | 2011-10-20 | 2016-06-21 | Hyva Holding B.V. | Telescopic hydraulic cylinder |
| CN103111572A (en) * | 2013-02-02 | 2013-05-22 | 湖南千跃机械制造有限公司 | Rail wheel forging machine and production method of rail wheels |
| CN103711744A (en) * | 2013-12-31 | 2014-04-09 | 一重集团大连设计研究院有限公司 | Horizontal split-structure large-stroke plunger cylinder |
| CN103925258A (en) * | 2014-04-30 | 2014-07-16 | 徐州徐工液压件有限公司 | Dumper and multi-stage hydraulic cylinder of dumper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG ZHONGLI HYDRAULIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: QIN HONGMING Effective date: 20120420 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120420 Address after: 276400 Shandong city of Linyi province Yishui County Chengdong Middle Ring Road Patentee after: Shandong Zhongli Hydraulic Technology Co., Ltd. Address before: 276400 Shandong city of Linyi province Yishui County Chengdong Middle Ring Road Patentee before: Qin Hongming |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20130807 |
|
| C17 | Cessation of patent right |