CN105545871A - Double-acting telescopic multi-stage oil cylinder - Google Patents

Double-acting telescopic multi-stage oil cylinder Download PDF

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Publication number
CN105545871A
CN105545871A CN201610078592.8A CN201610078592A CN105545871A CN 105545871 A CN105545871 A CN 105545871A CN 201610078592 A CN201610078592 A CN 201610078592A CN 105545871 A CN105545871 A CN 105545871A
Authority
CN
China
Prior art keywords
sleeve
termination
double
oil pipe
oil cylinder
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201610078592.8A
Other languages
Chinese (zh)
Inventor
李桂成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIUZHOU SHUANGJI MACHINERY CO Ltd
Original Assignee
LIUZHOU SHUANGJI MACHINERY CO Ltd
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 LIUZHOU SHUANGJI MACHINERY CO Ltd filed Critical LIUZHOU SHUANGJI MACHINERY CO Ltd
Priority to CN201610078592.8A priority Critical patent/CN105545871A/en
Publication of CN105545871A publication Critical patent/CN105545871A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20Other details, e.g. assembly with regulating devices

Abstract

The invention discloses a double-acting telescopic multi-stage oil cylinder and relates to the technical field of hydraulic instruments. The oil cylinder comprises multiple stages of cylinder barrels movably connected with a sleeve, and an oil pipe arranged in the sleeve and connected with an oil hole in an end. The oil pipe and an oil pipe sleeve connected to the end are connected, and a sealing element is arranged between the oil pipe and the end. The end is provided with an end connection sleeve which is connected with the end through a hexagon socket screw. The sleeve is sleeved with the end connection sleeve. A spring steel wire check ring is arranged between the sleeve and the end connection sleeve. The oil cylinder can solve the problem that a double-acting telescopic multi-stage oil cylinder is complex to machine and difficult to assemble.

Description

Double-action is stretched multi-stage oil cylinder
Technical field
The present invention relates to hydraulic pressure apparatus technical field, especially a kind of flexible multi-stage oil cylinder.
Background technique
Existing a kind of double-action stretch multi-stage oil cylinder fixed termination in its guiding connecting jacket structure as shown in Figure 1, its bottom welding flange arrangement is as shown in Figure 2; The termination 1 being provided with oilhole in FIG and oil pipe 5 and being with the connection of sleeve 4 is welded and fixed; This Placement, when considering the problem of assembling, must be assembled from top.Middle remaining part structure choice can only take the structure of guiding connecting jacket structure or bottom welding flange as shown in Figure 2, is unfavorable for processing and assembling.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of double-action and stretches multi-stage oil cylinder, and it can solve double-action and to stretch the processed complex of multi-stage oil cylinder and the problem of assembling difficulty.In order to solve the problem, technological scheme of the present invention is: this double-action multi-stage oil cylinder that stretches includes the multistage cylinder barrel be flexibly connected with sleeve, be arranged on the oil pipe be connected with oilhole in termination in described sleeve, described oil pipe is connected with the oil pipe cover being connected to described termination, is provided with Sealing between described oil pipe and described termination; Described termination is provided with termination connecting sleeve, described termination connecting sleeve is connected with described termination by bolt; Described termination connecting sleeve is socketed on described sleeve, is provided with back-up ring between described sleeve and described termination connecting sleeve.
In technique scheme, more specifically scheme can also be: described back-up ring is Spring Steel Wire back-up ring; Described bolt is hexagon socket head cap screw.
Owing to adopting technique scheme, the present invention has following beneficial effect:
1, sleeve termination of the present invention is movable, does not have narrow limitation for the stretch design of Multi-stage cylinder polycrystalline substance of double-action.Polycrystalline substance can be taked to be welded and fixed formula, also can take movable dismountable structure.And the sleeve termination of existing common technology structure is for being welded and fixed, considers the problem of assembling, the design of cylinder structure has certain narrow limitation.
2, the present invention simply, easily processes, assembling variation.Do not affect cylinder barrel intensity, without distortion.And the structural type of prior art, must assemble from top.Remaining part structure choice can only take the structure of guiding connecting jacket structure or bottom welding flange, is unfavorable for processing and assembling.
Accompanying drawing explanation
Fig. 1 is that the double-action of prior art is stretched the guiding connecting jacket structure schematic diagram of multi-stage oil cylinder;
Fig. 2 is that the double-action of prior art is stretched the bottom welding flange arrangement schematic diagram of multi-stage oil cylinder;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the enlarged icon intention of Fig. 3.
Number in the figure is expressed as: 1, termination, and 2, termination connecting sleeve, 3, hexagon socket head cap screw, 4, sleeve, 5, oil pipe, 6, oil pipe cover, 7, back-up ring, 8, Sealing.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 and Fig. 2 is that the double-action of prior art is stretched multi-stage oil cylinder, and the termination 1 being provided with oilhole in comprising and oil pipe 5 and being with the connection of sleeve 4 is welded and fixed; This Placement, when considering the problem of assembling, must be assembled from top.
The double-action of Fig. 3 and Fig. 4 is stretched multi-stage oil cylinder, include the multistage cylinder barrel be flexibly connected with sleeve 4, be arranged on the oil pipe 5 be connected with oilhole in termination 1 in sleeve 4, oil pipe 5 overlaps 6 with the oil pipe being connected to termination 1 and is connected, and is provided with Sealing 8 between oil pipe 5 and termination 1; Termination 1 is provided with termination connecting sleeve 2, termination connecting sleeve 2 is connected with termination 1 by bolt 3; Termination connecting sleeve 2 is socketed on sleeve 4, is provided with back-up ring 7 between sleeve 4 and termination connecting sleeve 2.Back-up ring is Spring Steel Wire back-up ring; Bolt 3 is hexagon socket head cap screw.

Claims (2)

1. a double-action is stretched multi-stage oil cylinder, include the multistage cylinder barrel be flexibly connected with sleeve (4), be arranged on the oil pipe (5) be connected with termination (1) interior oilhole in described sleeve (4), it is characterized in that: described oil pipe (5) is connected with the oil pipe cover (6) being connected to described termination (1), is provided with Sealing (8) between described oil pipe (5) and described termination (1); Described termination (1) is provided with termination connecting sleeve (2), described termination connecting sleeve (2) is connected with described termination (1) by bolt (3); Described termination connecting sleeve (2) is socketed on described sleeve (4), is provided with back-up ring (7) between described sleeve (4) and described termination connecting sleeve (2).
2. double-action according to claim 1 is stretched multi-stage oil cylinder, it is characterized in that: described back-up ring (7) is Spring Steel Wire back-up ring; Described bolt (3) is hexagon socket head cap screw.
CN201610078592.8A 2016-02-04 2016-02-04 Double-acting telescopic multi-stage oil cylinder Pending CN105545871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610078592.8A CN105545871A (en) 2016-02-04 2016-02-04 Double-acting telescopic multi-stage oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610078592.8A CN105545871A (en) 2016-02-04 2016-02-04 Double-acting telescopic multi-stage oil cylinder

Publications (1)

Publication Number Publication Date
CN105545871A true CN105545871A (en) 2016-05-04

Family

ID=55825311

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610078592.8A Pending CN105545871A (en) 2016-02-04 2016-02-04 Double-acting telescopic multi-stage oil cylinder

Country Status (1)

Country Link
CN (1) CN105545871A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2338674A1 (en) * 1973-07-31 1975-02-20 Gewerk Eisenhuette Westfalia Double-acting multiple telescopic cylinder - has outer stage consisting of two concentric tubes including a hydraulic fluid channel
FR2305622A1 (en) * 1975-03-24 1976-10-22 Almon Robert Multi-stage telescopic hydraulic jack - has retraction time reduced by pressure chambers between stepped stages
CN201281054Y (en) * 2009-01-04 2009-07-29 徐州徐工液压件有限公司 Novel oil path structure for all-stage stretching of double-acting multi-stage cylinder
CN201391506Y (en) * 2009-03-26 2010-01-27 济南东奥自控技术有限公司 Multilevel difunctional hydraulic cylinder
CN101806315A (en) * 2010-04-07 2010-08-18 长沙中联重工科技发展股份有限公司 Compound oil cylinder and refuse compactor thereof
CN201763722U (en) * 2010-09-16 2011-03-16 秦洪明 Double-acting multilevel hydraulic cylinder
CN105240342A (en) * 2015-11-18 2016-01-13 柳州双吉机械有限公司 Double-action telescopic multi-stage oil cylinder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2338674A1 (en) * 1973-07-31 1975-02-20 Gewerk Eisenhuette Westfalia Double-acting multiple telescopic cylinder - has outer stage consisting of two concentric tubes including a hydraulic fluid channel
FR2305622A1 (en) * 1975-03-24 1976-10-22 Almon Robert Multi-stage telescopic hydraulic jack - has retraction time reduced by pressure chambers between stepped stages
CN201281054Y (en) * 2009-01-04 2009-07-29 徐州徐工液压件有限公司 Novel oil path structure for all-stage stretching of double-acting multi-stage cylinder
CN201391506Y (en) * 2009-03-26 2010-01-27 济南东奥自控技术有限公司 Multilevel difunctional hydraulic cylinder
CN101806315A (en) * 2010-04-07 2010-08-18 长沙中联重工科技发展股份有限公司 Compound oil cylinder and refuse compactor thereof
CN201763722U (en) * 2010-09-16 2011-03-16 秦洪明 Double-acting multilevel hydraulic cylinder
CN105240342A (en) * 2015-11-18 2016-01-13 柳州双吉机械有限公司 Double-action telescopic multi-stage oil cylinder

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Application publication date: 20160504