CN201050516Y - Multi-stage synchronous extension double-acting hydraulic cylinder - Google Patents

Multi-stage synchronous extension double-acting hydraulic cylinder Download PDF

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Publication number
CN201050516Y
CN201050516Y CNU2007200393468U CN200720039346U CN201050516Y CN 201050516 Y CN201050516 Y CN 201050516Y CN U2007200393468 U CNU2007200393468 U CN U2007200393468U CN 200720039346 U CN200720039346 U CN 200720039346U CN 201050516 Y CN201050516 Y CN 201050516Y
Authority
CN
China
Prior art keywords
cylinder
hydraulic cylinder
piston
stage
oil
Prior art date
Application number
CNU2007200393468U
Other languages
Chinese (zh)
Inventor
黄河
王勇军
孙美芳
支成军
顾国华
Original Assignee
南通液压机械有限公司
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 南通液压机械有限公司 filed Critical 南通液压机械有限公司
Priority to CNU2007200393468U priority Critical patent/CN201050516Y/en
Application granted granted Critical
Publication of CN201050516Y publication Critical patent/CN201050516Y/en

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Abstract

The utility model discloses a hydraulic cylinder provided with multilevel synchronous extending double-functional, which includes an outer cylinder. A first-level piston is arranged in the outer cylinder, the piston rod of the first-level piston is the cylinder of the subordinate hydraulic cylinder; in this way, a plurality of levels of hydraulic cylinders are arranged. The annular area between the neighboring two levels of the cylinders is the same as the action area of the hydraulic cylinder piston of lower level, and an oil inlet hole is arranged at the bottom of the cylinder of each level. The utility model has the rational structure and excellent stability of elevation, and can realize multilevel synchronous extension.

Description

The Synchronized Telescopic double-acting hydraulic cylinder

Technical field:

The utility model relates to a kind of telescopic hydraulic cylinder device.

Background technique:

Existing multistage hydraulic cylinder can not be realized Synchronized Telescopic, and connected lifting platform stationarity is undesirable.

Summary of the invention:

It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and the lifting stationarity is good, can realize the Synchronized Telescopic double-acting hydraulic cylinder of Synchronized Telescopic.

Technical solution of the present utility model is:

A kind of Synchronized Telescopic double-acting hydraulic cylinder, it is characterized in that: comprise outer cylinder, first stage piston is set in the outer cylinder, the piston rod of first stage piston promptly is the cylinder barrel of next stage oil hydraulic cylinder, multistage hydraulic cylinder is set according to this, annulus area between the adjacent two-stage cylinder barrel is with wherein low one-level hydraulic cylinder piston active area is identical, and every grade of cylinder base is equipped with oil inlet hole.

Except that the piston of afterbody oil hydraulic cylinder, only all be provided with in all the other pistons at different levels can oil-feed one-way valve.Be provided with venting gas appliance on the cylinder bodies at different levels.The piston rod of afterbody oil hydraulic cylinder is hollow form, and hollow cavity communicates with hydraulic system at head.

The utility model is rational in infrastructure, and the lifting stationarity is good, can realize Synchronized Telescopic.

Description of drawings:

The utility model is described in further detail below in conjunction with drawings and Examples.

Accompanying drawing is an embodiment's of the utility model a configuration diagram.

Embodiment:

A kind of Synchronized Telescopic double-acting hydraulic cylinder (is example with the level Four), comprise outer cylinder 2, first stage piston 3 is set in the outer cylinder 2, the piston rod of first stage piston 3 promptly is the cylinder barrel 7 (being called the first stage piston cylinder barrel here) of next stage oil hydraulic cylinder, multistage hydraulic cylinder is set according to this, comprise second piston 4, three grades of pistons 5, level Four piston 6, second piston cylinder barrel 9, three grades of piston bores 10, annulus area between the adjacent two-stage cylinder barrel is identical with low one-level hydraulic cylinder piston active area wherein (to be that annulus area between outer cylinder and one-level cylinder barrel is identical with the second piston active area, and the like), every grade of cylinder base is equipped with oil inlet hole 12.Except that the piston 6 of afterbody oil hydraulic cylinder, only all be provided with in all the other pistons at different levels can oil-feed one-way valve 1, during proper functioning, one-way valve is all closed, when piston (example two, level Four piston) when not rising to the top, one-way valve is opened, and replenishes the oil that enters and makes it rise to the top.Be provided with venting gas appliance----bleed screw 8 on the cylinder bodies at different levels.The piston rod 11 of afterbody oil hydraulic cylinder is hollow form, and hollow cavity communicates with hydraulic system at head, so that certain pressure to be provided, guarantees that further pistons at different levels rise with same speed.During decline, oil inlet hole 12 oil returns, under the effect of level Four piston head pressure, each piston action is opposite with rising.

Claims (4)

1. Synchronized Telescopic double-acting hydraulic cylinder, it is characterized in that: comprise outer cylinder, first stage piston is set in the outer cylinder, the piston rod of first stage piston promptly is the cylinder barrel of next stage oil hydraulic cylinder, multistage hydraulic cylinder is set according to this, annulus area between the adjacent two-stage cylinder barrel is with wherein low one-level hydraulic cylinder piston active area is identical, and every grade of cylinder base is equipped with oil inlet hole.
2. Synchronized Telescopic double-acting hydraulic cylinder according to claim 1 is characterized in that: except that the piston of afterbody oil hydraulic cylinder, only all be provided with in all the other pistons at different levels can oil-feed one-way valve.
3. Synchronized Telescopic double-acting hydraulic cylinder according to claim 1 and 2 is characterized in that: be provided with venting gas appliance on the cylinder bodies at different levels.
4. Synchronized Telescopic double-acting hydraulic cylinder according to claim 1 and 2 is characterized in that: the piston rod of afterbody oil hydraulic cylinder be hollow form, and hollow cavity communicates with hydraulic system at head.
CNU2007200393468U 2007-06-04 2007-06-04 Multi-stage synchronous extension double-acting hydraulic cylinder CN201050516Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200393468U CN201050516Y (en) 2007-06-04 2007-06-04 Multi-stage synchronous extension double-acting hydraulic cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200393468U CN201050516Y (en) 2007-06-04 2007-06-04 Multi-stage synchronous extension double-acting hydraulic cylinder

Publications (1)

Publication Number Publication Date
CN201050516Y true CN201050516Y (en) 2008-04-23

Family

ID=39337003

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200393468U CN201050516Y (en) 2007-06-04 2007-06-04 Multi-stage synchronous extension double-acting hydraulic cylinder

Country Status (1)

Country Link
CN (1) CN201050516Y (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865178A (en) * 2009-04-15 2010-10-20 北京谊安医疗系统股份有限公司 Two-stage hydraulic cylinder
CN101900150A (en) * 2010-08-31 2010-12-01 三一汽车起重机械有限公司 Multi-stage oil cylinder and hydraulic device with same
CN102072221A (en) * 2010-12-29 2011-05-25 三一汽车起重机械有限公司 Multi-stage oil cylinder with pin and crane with same
CN102085851A (en) * 2011-01-13 2011-06-08 长沙中联重工科技发展股份有限公司 Multistage telescoping mechanism sequence control device and engineering equipment applying same
CN104591014A (en) * 2014-11-25 2015-05-06 中联重科股份有限公司 Telescopic cylinder, landing leg control system and crane
CN105109937A (en) * 2013-07-29 2015-12-02 蒋红娟 Automatic feeding machine of full-automatic hydraulic molding machine for stacking operation, and working method of automatic feeding machine
CN105173575A (en) * 2013-07-29 2015-12-23 蒋红娟 Working method for automatic feed machine of hydro-forming brick making machine of stacking robot
CN105236093A (en) * 2013-07-29 2016-01-13 蒋红娟 Automatic feeding machine for full-automatic hydraulic forming machine for hollow blocks and bricks
CN105384091A (en) * 2015-12-31 2016-03-09 徐州重型机械有限公司 Telescopic boom structure with a multilevel independent telescopic cylinder and crane
CN105443493A (en) * 2015-12-23 2016-03-30 上海华岛液压设备制造有限公司 Multi-stage hydraulic cylinder with automatic compensating device
CN105460197A (en) * 2015-12-11 2016-04-06 浙江海洋学院 Sleeve type spraying system used for liquid tank precooling of liquefied natural gas (LNG) vessel and spraying method of sleeve type spraying system
CN107745064A (en) * 2017-11-08 2018-03-02 南通合强液压科技有限公司 A kind of oil cylinder of New Ring-like Type hot forging punching
CN107923421A (en) * 2015-07-14 2018-04-17 迈柯唯有限公司 Double acting hydraulic cylinder
CN108443264A (en) * 2018-07-23 2018-08-24 江苏恒立液压股份有限公司 Level Four oil cylinder
CN111017783A (en) * 2019-11-14 2020-04-17 武汉船舶通信研究所(中国船舶重工集团公司第七二二研究所) Hydraulic lifting device

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865178A (en) * 2009-04-15 2010-10-20 北京谊安医疗系统股份有限公司 Two-stage hydraulic cylinder
CN101900150A (en) * 2010-08-31 2010-12-01 三一汽车起重机械有限公司 Multi-stage oil cylinder and hydraulic device with same
CN101900150B (en) * 2010-08-31 2013-11-20 三一汽车起重机械有限公司 Multi-stage oil cylinder and hydraulic device with same
CN102072221A (en) * 2010-12-29 2011-05-25 三一汽车起重机械有限公司 Multi-stage oil cylinder with pin and crane with same
CN102085851A (en) * 2011-01-13 2011-06-08 长沙中联重工科技发展股份有限公司 Multistage telescoping mechanism sequence control device and engineering equipment applying same
CN102085851B (en) * 2011-01-13 2013-06-05 中联重科股份有限公司 Multistage telescoping mechanism sequence control device and engineering equipment applying same
CN105236093A (en) * 2013-07-29 2016-01-13 蒋红娟 Automatic feeding machine for full-automatic hydraulic forming machine for hollow blocks and bricks
CN105109937A (en) * 2013-07-29 2015-12-02 蒋红娟 Automatic feeding machine of full-automatic hydraulic molding machine for stacking operation, and working method of automatic feeding machine
CN105173575A (en) * 2013-07-29 2015-12-23 蒋红娟 Working method for automatic feed machine of hydro-forming brick making machine of stacking robot
CN105253556A (en) * 2013-07-29 2016-01-20 蒋红娟 Automatic feeding machine of full-automatic hydraulic forming machine
CN104591014A (en) * 2014-11-25 2015-05-06 中联重科股份有限公司 Telescopic cylinder, landing leg control system and crane
CN107923421B (en) * 2015-07-14 2019-12-20 迈柯唯有限公司 Double-acting hydraulic cylinder
US10514050B2 (en) 2015-07-14 2019-12-24 MAQUET GmbH Double-acting hydraulic cylinder
CN107923421A (en) * 2015-07-14 2018-04-17 迈柯唯有限公司 Double acting hydraulic cylinder
CN105460197A (en) * 2015-12-11 2016-04-06 浙江海洋学院 Sleeve type spraying system used for liquid tank precooling of liquefied natural gas (LNG) vessel and spraying method of sleeve type spraying system
CN105443493A (en) * 2015-12-23 2016-03-30 上海华岛液压设备制造有限公司 Multi-stage hydraulic cylinder with automatic compensating device
CN105384091A (en) * 2015-12-31 2016-03-09 徐州重型机械有限公司 Telescopic boom structure with a multilevel independent telescopic cylinder and crane
CN107745064A (en) * 2017-11-08 2018-03-02 南通合强液压科技有限公司 A kind of oil cylinder of New Ring-like Type hot forging punching
CN108443264A (en) * 2018-07-23 2018-08-24 江苏恒立液压股份有限公司 Level Four oil cylinder
CN111017783A (en) * 2019-11-14 2020-04-17 武汉船舶通信研究所(中国船舶重工集团公司第七二二研究所) Hydraulic lifting device

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080423

Termination date: 20100604