CN201443547U - Long-stroke double pilot sleeve type multi-stage hydraulic cylinder - Google Patents

Long-stroke double pilot sleeve type multi-stage hydraulic cylinder Download PDF

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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
Application number
CN2009200313320U
Other languages
Chinese (zh)
Inventor
孙金刚
段升华
Original Assignee
秦洪明
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 秦洪明 filed Critical 秦洪明
Priority to CN2009200313320U priority Critical patent/CN201443547U/en
Application granted granted Critical
Publication of CN201443547U publication Critical patent/CN201443547U/en

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Abstract

The utility model discloses a long-stroke double pilot sleeve type multi-stage hydraulic cylinder, which belongs to a hydraulic element and solves the defect that the hydraulic cylinder in the prior art cannot run stably in the long stroke. The hydraulic cylinder includes a sleeve, a clamp key for a shaft, a clamp key for a hole, and a sealing part are arranged in the sleeve; a nonmetal guide ring serving as a main pilot is arranged at one end of the sleeve, and a metal guide ring serving as a floating pilot is arranged at the other end of the sleeve; the cross section of the metal guide ring is convex and embedded in the outer diameter of the sleeve. The long-stroke double pilot sleeve type multi-stage hydraulic cylinder is mainly used in industries like metallurgy, mines, hoisting, transportations, ships, forging and pressing, casting, and machining tools.

Description

The two guide sleeve type multistage hydraulic cylinders of long stroke

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)

1. two guide sleeve type multistage hydraulic cylinders of a 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, it is characterized in that: the other end of sleeve is provided with the metal guide ring as floating guiding.
2. the two guide sleeve type multistage hydraulic cylinders of long stroke according to claim 1, it is characterized in that: the cross section of metal guide ring is " protruding " font and embeds the external diameter of sleeve.
CN2009200313320U 2009-08-07 2009-08-07 Long-stroke double pilot sleeve type multi-stage hydraulic cylinder CN201443547U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (10)

* Cited by examiner, † Cited by third party
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