CN2937586Y - Compound hydraulic cylinder with quick driving device - Google Patents

Compound hydraulic cylinder with quick driving device Download PDF

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Publication number
CN2937586Y
CN2937586Y CN 200620027031 CN200620027031U CN2937586Y CN 2937586 Y CN2937586 Y CN 2937586Y CN 200620027031 CN200620027031 CN 200620027031 CN 200620027031 U CN200620027031 U CN 200620027031U CN 2937586 Y CN2937586 Y CN 2937586Y
Authority
CN
China
Prior art keywords
cylinder
piston
piston rod
rapid
fast
Prior art date
Application number
CN 200620027031
Other languages
Chinese (zh)
Inventor
戴艳玲
Original Assignee
天津市天锻压力机有限公司
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 天津市天锻压力机有限公司 filed Critical 天津市天锻压力机有限公司
Priority to CN 200620027031 priority Critical patent/CN2937586Y/en
Application granted granted Critical
Publication of CN2937586Y publication Critical patent/CN2937586Y/en

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Abstract

The utility model relates to a composite hydraulic oil cylinder with fast driving device, which comprises a cylinder body. A piston is mounted in the cylinder body and a cylinder end guide sleeve is fastened by a cylinder end flange and screws in the cylinder end. A center hole is arranged at the head of the piston in which a guide sleeve and a fast piston rod with a center via hole are mounted. The head of the fast piston rod penetrates the piston and the cylinder body to be fastened on the cylinder body through a locknut and a certain range of gap is arranged between the tail end of the fast piston rod and the center hole of the piston in order to form an empty cavity. The center via hole of the fast piston rod is communicated with this empty cavity. The utility model is superior in that the need for the device such as a prefill valve or a peripheral assistant cylinder can be eliminated, the overall structure of the compressor is simplified, the installation space is decreased and the utility model is convenient for the operation personnels to execute installation, enhances the working efficiency and can meet the requirement of miniaturizing the equipments.

Description

The complex liquid compressing cylinder that has the fast driving device

Technical field

The utility model belongs to the hydraulic machinery technical field, particularly relates to a kind of complex liquid compressing cylinder that has the fast driving device that the hydraulic machinery rapid system is simple in structure, be convenient to install that is used for.

Background technique

Hydraulic jack is in the hydraulic pressure installation hydraulic pressure can be changed into mechanical energy, realization straight reciprocating motion or the reciprocating actuating device of cycloid; present development along with hydraulics; greatly, easily carry out advantages such as overload protection, volume are little because hydraulic equipment has power, be widely adopted and replace original machinery to finish punching press, cut and shock processing action such as stretching.Common hydraulic system is to adopt liquid-filling valve and surge-tank to come the driving oil cylinder rapid movement by the control of hydraulic system, press cylinder body tonnage is less, the liquid-filling valve that can only mate smaller size smaller, when press oil cylinder operating rate needs faster speed, then to change bigger liquid-filling valve and its coupling, just can reach the requirement of press oil cylinder faster speed work, owing to the restriction of the installing space of press own big liquid-filling valve can not be installed, can't realize the oil cylinder rapid movement, therefore bring many troubles to design and installation, and directly influenced working efficiency; In addition for making press oil cylinder speedup, also have and adopt the peripheral hardware auxiliary cylinders to finish speedup, it is too big that the peripheral hardware auxiliary cylinders mainly exists volume, and structure burden can't satisfy the requirement of device miniaturization.

Summary of the invention

The utility model provides a kind of complex liquid compressing cylinder that has the fast driving device that the hydraulic machinery rapid system is simple in structure, be convenient to install that is used for for solving the technical problem that exists in the known technology.

The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:

The complex liquid compressing cylinder that has the fast driving device, comprise a cylinder body, piston is installed in cylinder body, be fastened with cylinder mouth guide pin bushing by cylinder mouth flange and screw in the cylinder mouth, it is characterized in that: be provided with center hole at piston crown, guide pin bushing and the rapid piston rod that has central through bore are installed in it, the rapid piston rod head passes piston and cylinder body is fastened on the cylinder body by locknut, be provided with certain clearance between rapid piston rod tail end and the piston center hole to constitute a cavity, the central through bore of rapid piston rod is communicated with this cavity.

The utility model can also adopt following technical measures:

Built-in guide pin bushing of described piston crown and rapid piston rod are and are slidingly matched.

Advantage and the good effect that the utlity model has are: because the utility model will be processed with center hole in the oil cylinder piston head, mounting guide sleeve and have the rapid piston rod of central through bore in the heart hole therein, the oil pump of hydraulic system directly can be connected on the rapid piston rod like this and delivery hydraulic pressure oil in its central through bore, make hydraulic oil be full of the central through bore of rapid piston rod and the cavity of piston and rapid piston rod formation, and the driven plunger rapid movement.So not only can remove devices such as liquid-filling valve or peripheral hardware auxiliary cylinders from, simplify the press overall structure, dwindle installing space, and reduced the required hydraulic pressure oil mass of hydraulic press, and be convenient to operator's installation, improve working efficiency, and can satisfy the requirement of device miniaturization.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among the figure: 1-cylinder body, 2-locknut, 3-piston, 4-cylinder mouth guide pin bushing, 5-cylinder mouth flange, 6-rapid piston rod, 7-guide pin bushing, 8-locknut, 9-seal ring.

Embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

See also Fig. 1, the complex liquid compressing cylinder that has the fast driving device, comprise a cylinder body 1, on the cylinder body excircle, be fixed with locknut 2, piston 3 is installed in the cylinder body 1, be fastened with cylinder mouth guide pin bushing 4 by cylinder mouth flange 5 and screw in the cylinder mouth, be provided with center hole at piston crown, guide pin bushing 7 and the rapid piston rod 6 that has central through bore are installed in the center hole, the rapid piston rod head passes piston 3 and cylinder body 1 is fastening by locknut 8 and cylinder body, be provided with certain clearance between rapid piston rod tail end and the piston center hole to constitute a cavity, the central through bore of described rapid piston rod is communicated with this cavity.Be provided with seal ring 9 at cylinder body and piston assembling place, cylinder mouth guide pin bushing 4 is provided with seal ring with cylinder body assembling place, cylinder mouth guide pin bushing 4 with assembling place of piston 3 and cylinder mouth flange 5.The built-in guide pin bushing of described piston crown 7 is with rapid piston rod and is slidingly matched.

Working principle of the present utility model is:

During work, the head of rapid piston rod 6 is connected hydraulic system, oil pump by hydraulic system is to the central through bore delivery hydraulic pressure oil of rapid piston rod, make hydraulic oil be full of rapid piston rod central through bore and and piston 3 center holes between gap and cavity, produce the power of driven plunger rapid movement along with constantly entering of hydraulic oil, this powered piston fast moving.

Claims (2)

1. complex liquid compressing cylinder that has the fast driving device, comprise a cylinder body, piston is installed in cylinder body, be fastened with cylinder mouth guide pin bushing by cylinder mouth flange and screw in the cylinder mouth, it is characterized in that: be provided with center hole at piston crown, guide pin bushing and the rapid piston rod that has central through bore are installed in it, the rapid piston rod head passes piston and cylinder body is fastened on the cylinder body by locknut, be provided with certain clearance between rapid piston rod tail end and the piston center hole to constitute a cavity, the central through bore of rapid piston rod is communicated with this cavity.
2. the complex liquid compressing cylinder that has the fast driving device according to claim 1 is characterized in that: guide pin bushing that described piston crown is built-in and rapid piston rod are and are slidingly matched.
CN 200620027031 2006-08-16 2006-08-16 Compound hydraulic cylinder with quick driving device CN2937586Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620027031 CN2937586Y (en) 2006-08-16 2006-08-16 Compound hydraulic cylinder with quick driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620027031 CN2937586Y (en) 2006-08-16 2006-08-16 Compound hydraulic cylinder with quick driving device

Publications (1)

Publication Number Publication Date
CN2937586Y true CN2937586Y (en) 2007-08-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620027031 CN2937586Y (en) 2006-08-16 2006-08-16 Compound hydraulic cylinder with quick driving device

Country Status (1)

Country Link
CN (1) CN2937586Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101216057B (en) * 2007-12-29 2011-07-27 中国重型机械研究院 Composite hydraulic cylinder with buffer capacity and method
CN102287415A (en) * 2011-09-01 2011-12-21 无锡市长江液压缸厂 Rapid air inlet hydraulic cylinder
CN102748341A (en) * 2012-06-19 2012-10-24 江苏金三力机械制造有限公司 Quick cylinder hydraulic system
CN102979781A (en) * 2012-11-27 2013-03-20 裕东(中山)机械工程有限公司 Single-acting plunger-type cylinder
CN103291685A (en) * 2013-05-17 2013-09-11 中国重型机械研究院股份公司 Low-load high speed/heavy-load low speed cylinder
CN104863923A (en) * 2015-05-20 2015-08-26 中国重型机械研究院股份公司 Oil cylinder with two-level stretching-out speed
CN105402191A (en) * 2015-12-02 2016-03-16 苏州三基铸造装备股份有限公司 Internal differential adjustable type automatic deceleration oil cylinder
CN110500334A (en) * 2019-08-28 2019-11-26 邵玉强 A kind of Quick cylinder

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101216057B (en) * 2007-12-29 2011-07-27 中国重型机械研究院 Composite hydraulic cylinder with buffer capacity and method
CN102287415A (en) * 2011-09-01 2011-12-21 无锡市长江液压缸厂 Rapid air inlet hydraulic cylinder
CN102748341A (en) * 2012-06-19 2012-10-24 江苏金三力机械制造有限公司 Quick cylinder hydraulic system
CN102979781A (en) * 2012-11-27 2013-03-20 裕东(中山)机械工程有限公司 Single-acting plunger-type cylinder
CN103291685A (en) * 2013-05-17 2013-09-11 中国重型机械研究院股份公司 Low-load high speed/heavy-load low speed cylinder
CN103291685B (en) * 2013-05-17 2015-09-16 中国重型机械研究院股份公司 A kind of little load high speed, heavy load low speed cylinder
CN104863923A (en) * 2015-05-20 2015-08-26 中国重型机械研究院股份公司 Oil cylinder with two-level stretching-out speed
CN105402191A (en) * 2015-12-02 2016-03-16 苏州三基铸造装备股份有限公司 Internal differential adjustable type automatic deceleration oil cylinder
CN110500334A (en) * 2019-08-28 2019-11-26 邵玉强 A kind of Quick cylinder
CN110500334B (en) * 2019-08-28 2020-12-01 江苏天禄特材厂 Quick oil cylinder

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070822

Termination date: 20100816

C17 Cessation of patent right