CN203114776U - Double-cylinder single-piston-rod hydraulic cylinder - Google Patents

Double-cylinder single-piston-rod hydraulic cylinder Download PDF

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Publication number
CN203114776U
CN203114776U CN 201320121211 CN201320121211U CN203114776U CN 203114776 U CN203114776 U CN 203114776U CN 201320121211 CN201320121211 CN 201320121211 CN 201320121211 U CN201320121211 U CN 201320121211U CN 203114776 U CN203114776 U CN 203114776U
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CN
China
Prior art keywords
cylinder barrel
piston
cylinder
rod
fluid port
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Expired - Fee Related
Application number
CN 201320121211
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Chinese (zh)
Inventor
王泽民
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Beijing Jinzi Tiancheng Hydraulic Technology Co Ltd
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Beijing Jinzi Tiancheng Hydraulic Technology Co Ltd
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Priority to CN 201320121211 priority Critical patent/CN203114776U/en
Application granted granted Critical
Publication of CN203114776U publication Critical patent/CN203114776U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a double-cylinder single-piston-rod hydraulic cylinder which comprises a cylinder barrel A (1), a cylinder barrel B (2) and a piston rod (3), wherein the cylinder barrel A (1) and the cylinder barrel B (2) are symmetrically arranged on the piston rod (3), a piston A (5) and a piston B (8) are arranged on the piston rod (3), the piston A (5) and the piston B (8) are arranged in the cylinder barrel A (1) and the cylinder barrel B (2) respectively, a front end cover A (4) and a rear end cover A (6) are arranged at two ends of the cylinder barrel A (1) respectively, a rear end cover B (7) and a front end cover B (9) are arranged at two ends of the cylinder barrel B (2) respectively, a fixing hole (14) is formed at one end of the piston rod (3), and fixing holes (14) are also arranged in end faces of symmetrical sides of the cylinder barrel A (1) and the cylinder barrel B (2). Due to the fact that the fixing holes are formed in the piston rod and in the two cylinder barrels, multiple modes of motion can be achieved by fixation of the piston rod or fixation of a single cylinder barrel or fixation of the two cylinder barrels.

Description

A kind of twin-tub single-piston-rod hydraulic cylinder
Technical field
The utility model relates to a kind of twin-tub single-piston-rod hydraulic cylinder, belongs to fluid pressure actuator.
Background technique
Oil hydraulic cylinder with hydraulic pressure can change mechanical energy into, the do straight reciprocating motion hydraulic actuator of (or oscillating motion).Its simple in structure, reliable operation.When realizing to-and-fro motion with it, can remove speed reducer from, and not have drive gap, therefore motion steadily is used widely in the hydraulic system of various machineries.
But existing oil hydraulic cylinder function ratio is more single, can't obtain multiple motion mode with a cover oil hydraulic cylinder equipment.
The model utility content
The purpose of this utility model is, a kind of twin-tub single-piston-rod hydraulic cylinder has been proposed, be provided with two cylinder barrels at a piston rod, be equipped with fixed hole on piston rod and two cylinder barrels, by the fixing, fixing to the fixing of single cylinder barrel or to two cylinder barrels time of piston rod obtained multiple motion mode.
The technical solution of the utility model: a kind of twin-tub single-piston-rod hydraulic cylinder, comprise cylinder barrel A, cylinder barrel B and piston rod, cylinder barrel A and cylinder barrel B are symmetricly set on the piston rod, piston rod is provided with piston A and piston B, piston A and piston B are located at respectively in cylinder barrel A and the cylinder barrel B, and cylinder barrel A two ends are respectively equipped with front cover A and rear end cover A, and cylinder barrel B two ends are provided with rear end cover B and front end cover B, piston rod one end is provided with fixed hole, and the symmetrical side end face of cylinder barrel A and cylinder barrel B also is provided with fixed hole.
In the aforesaid this twin-tub single-piston-rod hydraulic cylinder, adopt flange type, pull rod type, helical or clasp-type mode to be connected between front cover A and the rear end cover A and between rear end cover B and the front end cover B.
In the aforesaid this twin-tub single-piston-rod hydraulic cylinder, adopt clasp-type, axle sleeve type or nut type mode to fix between piston A and piston B and the piston rod.
In the aforesaid this twin-tub single-piston-rod hydraulic cylinder, the working medium of described cylinder barrel A and cylinder barrel B is liquid or gas.
In the aforesaid this twin-tub single-piston-rod hydraulic cylinder, cylinder barrel A is provided with hydraulic fluid port A and hydraulic fluid port B, and cylinder barrel B is provided with hydraulic fluid port C and hydraulic fluid port D.
Compared with prior art, the symmetrical side end face of the utility model piston rod end and cylinder barrel A and cylinder barrel B is equipped with fixed hole, by the fixing, fixing to the fixing of single cylinder barrel or to two cylinder barrels time of piston rod obtained multiple motion mode.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is sectional view of the present utility model;
Fundamental diagram when Fig. 3 is fixed piston rod;
Fundamental diagram when Fig. 4 is stator bore A;
Fundamental diagram when Fig. 5 is while stator bore A and cylinder barrel B.
Being labeled as in the accompanying drawing: 1-cylinder barrel A, 2-cylinder barrel B, 3-piston rod, 4-front cover A, 5-piston A, 6-rear end cover A, 7-rear end cover B, 8-piston B, 9-front end cover B, 10-hydraulic fluid port A, 11-hydraulic fluid port B, 12 hydraulic fluid port C-, 13-hydraulic fluid port D, 14-fixed hole.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as the foundation of the utility model being done any restriction.
Embodiment 1 of the present utility model: as shown in Figure 1, a kind of twin-tub single-piston-rod hydraulic cylinder, comprise cylinder barrel A1, cylinder barrel B2 and piston rod 3, cylinder barrel A1 and cylinder barrel B2 are symmetricly set on the piston rod 3, piston rod 3 is provided with piston A5 and piston B8, piston A5 and piston B8 are located at respectively in cylinder barrel A1 and the cylinder barrel B2, cylinder barrel A1 two ends are respectively equipped with front cover A4 and rear end cover A6, cylinder barrel B2 two ends are provided with rear end cover B 7 and front end cover B 9, piston rod 3 one ends are provided with fixed hole 14, and the symmetrical side end face of cylinder barrel A1 and cylinder barrel B2 also is provided with fixed hole 14.
Adopt the flange type mode to be connected between front cover A4 and the rear end cover A6 and between rear end cover B 7 and the front end cover B 9.
Adopt the clasp-type mode to fix between piston A5 and piston B8 and the piston rod 3.
The working medium of described cylinder barrel A1 and cylinder barrel B2 is liquid.
As shown in Figure 2, cylinder barrel A1 is provided with hydraulic fluid port A10 and hydraulic fluid port B11, and cylinder barrel B2 is provided with hydraulic fluid port C12 and hydraulic fluid port D13.
Embodiment 2 of the present utility model: as shown in Figure 1, a kind of twin-tub single-piston-rod hydraulic cylinder, comprise cylinder barrel A1, cylinder barrel B2 and piston rod 3, cylinder barrel A1 and cylinder barrel B2 are symmetricly set on the piston rod 3, piston rod 3 is provided with piston A5 and piston B8, piston A5 and piston B8 are located at respectively in cylinder barrel A1 and the cylinder barrel B2, cylinder barrel A1 two ends are respectively equipped with front cover A4 and rear end cover A6, cylinder barrel B2 two ends are provided with rear end cover B 7 and front end cover B 9, piston rod 3 one ends are provided with fixed hole 14, and the symmetrical side end face of cylinder barrel A1 and cylinder barrel B2 also is provided with fixed hole 14.
Adopt the pull rod type mode to be connected between front cover A4 and the rear end cover A6 and between rear end cover B 7 and the front end cover B 9.
Adopt axle sleeve type mode to fix between piston A5 and piston B8 and the piston rod 3.
The working medium of described cylinder barrel A1 and cylinder barrel B2 is liquid.
As shown in Figure 2, cylinder barrel A1 is provided with hydraulic fluid port A10 and hydraulic fluid port B11, and cylinder barrel B2 is provided with hydraulic fluid port C12 and hydraulic fluid port D13.
Embodiment 3 of the present utility model: as shown in Figure 1, a kind of twin-tub single-piston-rod hydraulic cylinder, comprise cylinder barrel A1, cylinder barrel B2 and piston rod 3, cylinder barrel A1 and cylinder barrel B2 are symmetricly set on the piston rod 3, piston rod 3 is provided with piston A5 and piston B8, piston A5 and piston B8 are located at respectively in cylinder barrel A1 and the cylinder barrel B2, cylinder barrel A1 two ends are respectively equipped with front cover A4 and rear end cover A6, cylinder barrel B2 two ends are provided with rear end cover B 7 and front end cover B 9, piston rod 3 one ends are provided with fixed hole 14, and the symmetrical side end face of cylinder barrel A1 and cylinder barrel B2 also is provided with fixed hole 14.
Adopt the helical mode to be connected between front cover A4 and the rear end cover A6 and between rear end cover B 7 and the front end cover B 9.
Adopt the nut type mode to fix between piston A5 and piston B8 and the piston rod 3.
The working medium of described cylinder barrel A1 and cylinder barrel B2 is gas.
As shown in Figure 2, cylinder barrel A1 is provided with hydraulic fluid port A10 and hydraulic fluid port B11, and cylinder barrel B2 is provided with hydraulic fluid port C12 and hydraulic fluid port D13.
Embodiment 4 of the present utility model: as shown in Figure 1, a kind of twin-tub single-piston-rod hydraulic cylinder, comprise cylinder barrel A1, cylinder barrel B2 and piston rod 3, cylinder barrel A1 and cylinder barrel B2 are symmetricly set on the piston rod 3, piston rod 3 is provided with piston A5 and piston B8, piston A5 and piston B8 are located at respectively in cylinder barrel A1 and the cylinder barrel B2, cylinder barrel A1 two ends are respectively equipped with front cover A4 and rear end cover A6, cylinder barrel B2 two ends are provided with rear end cover B 7 and front end cover B 9, piston rod 3 one ends are provided with fixed hole 14, and the symmetrical side end face of cylinder barrel A1 and cylinder barrel B2 also is provided with fixed hole 14.
Adopt the clasp-type mode to be connected between front cover A4 and the rear end cover A6 and between rear end cover B 7 and the front end cover B 9.
Adopt the clasp-type mode to fix between piston A5 and piston B8 and the piston rod 3.
The working medium of described cylinder barrel A1 and cylinder barrel B2 is gas.
As shown in Figure 2, cylinder barrel A1 is provided with hydraulic fluid port A10 and hydraulic fluid port B11, and cylinder barrel B2 is provided with hydraulic fluid port C12 and hydraulic fluid port D13.
Working principle: as if fixed piston rod 3, then two cylinder barrels can be distinguished self-movement during work.As shown in Figure 3, piston rod 3 one ends are fixed, and when hydraulic fluid port A10 oil-feed, during hydraulic fluid port B11 oil return, cylinder barrel A1 is to left movement; When hydraulic fluid port A10 oil return, during hydraulic fluid port B11 oil-feed, cylinder barrel A1 moves right.When hydraulic fluid port C12 oil-feed, during hydraulic fluid port D13 oil return, cylinder barrel B2 is to left movement; When hydraulic fluid port C12 oil return, during hydraulic fluid port D13 oil-feed, cylinder barrel B2 moves right.This moment cylinder barrel A1 and cylinder barrel B2 respectively bidirectional-movement produce push away, pulling force, be equivalent to two independently single-piston rod double-acting hydraulic cylinders of fixed piston rod.When hydraulic fluid port A10 and hydraulic fluid port D13 oil-feed simultaneously, during hydraulic fluid port B11 and hydraulic fluid port C12 oil return simultaneously, cylinder barrel A1 is to left movement, cylinder barrel B2 moves right simultaneously, the motion round about simultaneously of two cylinder barrels this moment, its output speed and power equate, are equivalent to a double piston-rod reversible double-acting hydraulic cylinder.In addition, by hydraulic fluid port is advanced, the control of the difference of oil return, cylinder barrel A1 and cylinder barrel B2 can also realize moving in the same way, motion another function such as static simultaneously.
If fixing wherein any one cylinder barrel, then piston rod and another cylinder barrel produce relative movement during work, and this cylinder barrel both can move in the same way with piston rod, also can reversing motion, can also keep static relatively.As shown in Figure 4, cylinder barrel A1 fixes, and when hydraulic fluid port A10 oil-feed and hydraulic fluid port B11 oil return, piston rod 3 moves right.When hydraulic fluid port C12 oil-feed, during hydraulic fluid port D13 oil return, cylinder barrel B2 and piston rod 3 reversing motions; When hydraulic fluid port C12 and hydraulic fluid port D13 closed simultaneously, cylinder barrel B2 kept relative static with piston rod 3, moves right with speed; When hydraulic fluid port C12 oil return, during hydraulic fluid port D13 oil-feed, cylinder barrel B2 and piston rod 3 move in the same way, and this moment, piston rod 3 and cylinder barrel B2 moved successively, its journey variable, but the while bidirectional-movement is equivalent to a telscoping hydaulic cylinder.
If fix two cylinder barrels, then have only the piston motion during work, be equivalent to stroke type double-acting hydraulic cylinder or a combination in series oil hydraulic cylinder such as double piston-rod constant speed.As shown in Figure 5, cylinder barrel A1 and cylinder barrel B2 fix, and when hydraulic fluid port A10 and hydraulic fluid port C12 oil-feed simultaneously, during hydraulic fluid port B11 and hydraulic fluid port D13 oil return simultaneously, piston rod 3 moves right; When hydraulic fluid port A10 and hydraulic fluid port C12 oil return simultaneously, during hydraulic fluid port B11 and hydraulic fluid port D13 oil-feed simultaneously, piston rod 3 is to left movement.This moment, bar footpath in piston two ends was identical, and forward and reverse movement velocity and thrust all equate, is equivalent to a stroke type double-acting hydraulic cylinder such as double piston-rod constant speed.Simultaneously, the hydrodynamic pressure in cylinder barrel A1 and the cylinder barrel B2 produces the active force of stack to piston rod 3, in order to obtain bigger thrust, is equivalent to the combination in series oil hydraulic cylinder.

Claims (5)

1. twin-tub single-piston-rod hydraulic cylinder, comprise cylinder barrel A(1), cylinder barrel B(2) and piston rod (3), cylinder barrel A(1) and cylinder barrel B(2) be symmetricly set on the piston rod (3), piston rod (3) is provided with piston A(5) and piston B(8), piston A(5) and piston B(8) be located at cylinder barrel A(1 respectively) and cylinder barrel B(2) in, cylinder barrel A(1) two ends are respectively equipped with front cover A(4) and rear end cover A(6), cylinder barrel B(2) two ends are provided with rear end cover B (7) and front end cover B (9), it is characterized in that: piston rod (3) one ends are provided with fixed hole (14), cylinder barrel A(1) and cylinder barrel B(2) symmetrical side end face also be provided with fixed hole (14).
2. a kind of twin-tub single-piston-rod hydraulic cylinder according to claim 1 is characterized in that: front cover A(4) with rear end cover A(6) between and adopt flange type, pull rod type, helical or clasp-type mode to be connected between rear end cover B (7) and the front end cover B (9).
3. a kind of twin-tub single-piston-rod hydraulic cylinder according to claim 1 is characterized in that: piston A(5) and piston B(8) and piston rod (3) between adopt clasp-type, axle sleeve type or nut type mode to fix.
4. a kind of twin-tub single-piston-rod hydraulic cylinder according to claim 1 is characterized in that: described cylinder barrel A(1) with cylinder barrel B(2) working medium be liquid or gas.
5. a kind of twin-tub single-piston-rod hydraulic cylinder according to claim 1 is characterized in that: cylinder barrel A(1) be provided with hydraulic fluid port A(10) and hydraulic fluid port B(11), cylinder barrel B(2) be provided with hydraulic fluid port C(12) and hydraulic fluid port D(13).
CN 201320121211 2013-03-18 2013-03-18 Double-cylinder single-piston-rod hydraulic cylinder Expired - Fee Related CN203114776U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320121211 CN203114776U (en) 2013-03-18 2013-03-18 Double-cylinder single-piston-rod hydraulic cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320121211 CN203114776U (en) 2013-03-18 2013-03-18 Double-cylinder single-piston-rod hydraulic cylinder

Publications (1)

Publication Number Publication Date
CN203114776U true CN203114776U (en) 2013-08-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320121211 Expired - Fee Related CN203114776U (en) 2013-03-18 2013-03-18 Double-cylinder single-piston-rod hydraulic cylinder

Country Status (1)

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CN (1) CN203114776U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107697832A (en) * 2017-11-29 2018-02-16 兴化市通舟船舶设备有限公司 A kind of brake device of winch
CN108331797A (en) * 2018-03-28 2018-07-27 徐工集团工程机械有限公司 A kind of sand throwing extinguishing vehicle feeding equipment oil cylinder
CN109899336A (en) * 2019-03-05 2019-06-18 煤炭科学技术研究院有限公司 A kind of biaxial loadings cylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107697832A (en) * 2017-11-29 2018-02-16 兴化市通舟船舶设备有限公司 A kind of brake device of winch
CN108331797A (en) * 2018-03-28 2018-07-27 徐工集团工程机械有限公司 A kind of sand throwing extinguishing vehicle feeding equipment oil cylinder
CN108331797B (en) * 2018-03-28 2023-12-08 江苏徐工工程机械研究院有限公司 Oil cylinder for feeding device of sand throwing fire extinguishing vehicle
CN109899336A (en) * 2019-03-05 2019-06-18 煤炭科学技术研究院有限公司 A kind of biaxial loadings cylinder
CN109899336B (en) * 2019-03-05 2021-01-29 煤炭科学技术研究院有限公司 Bidirectional loading cylinder

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

Granted publication date: 20130807

Termination date: 20170318