CN104609330A - Bidirectional hydraulic jack - Google Patents
Bidirectional hydraulic jack Download PDFInfo
- Publication number
- CN104609330A CN104609330A CN201510030474.5A CN201510030474A CN104609330A CN 104609330 A CN104609330 A CN 104609330A CN 201510030474 A CN201510030474 A CN 201510030474A CN 104609330 A CN104609330 A CN 104609330A
- Authority
- CN
- China
- Prior art keywords
- piston
- hole
- cylinder barrel
- orienting sleeve
- piston rod
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a bidirectional hydraulic jack. A through cavity is formed in a cylinder barrel. The two ends of the cylinder barrel are provided with a first guide sleeve and a second guide sleeve respectively. The side wall of the cylinder barrel is provided with a first connector base, a second connector base and a third connector base which are communicated with the through cavity. A first piston rod and a second piston rod are arranged in the cylinder barrel and stretch out of a middle opening in the first guide sleeve and a middle opening in the second guide sleeve respectively, a first piston and a second piston are arranged on the outer wall of the first piston rod and the outer all of the second piston rod respectively, the first piston is located between the first connector base and the second connector base in the cylinder barrel, the second piston is located between the second connector base and the third connector base, and sealing pieces are arranged between the pistons and the cylinder barrel and among the guide sleeves and the piston rods respectively. The hydraulic support top beam balance keeping device is compact in whole structure, reasonable in design, capable of achieving bidirectional hydraulic support, stable and reliable in structure in the repeated use process and high in mechanical accuracy.
Description
Technical field
The present invention relates to technical field of jacks, particularly relate to a kind of bidirectional hydraulic jack.
Background technology
Thruster jack combines to adopt bracing or strutting arrangement conventional in operation.In existing jack working process, adopt one end to fix, one end stroke, thus carry out unidirectional support, single-way moving.But due to exploitation narrow space, environment has a definite limitation, and mined bed has certain inclination angle usually.Therefore, in this case, unidirectional jack work is adopted, very inconvenient, and increase exploitation difficulty and cost of winning.
Summary of the invention
For solving the technical matters existed in background technology, the present invention proposes a kind of bidirectional hydraulic jack, reasonable in design, and good integrity can realize Bidirectional supporting.
A kind of bidirectional hydraulic jack that the present invention proposes, comprising: cylinder barrel, first piston, the second piston, first piston bar, the second piston rod, the first orienting sleeve, the second orienting sleeve;
Cylinder barrel inside has runs through cavity and two ends have opening, cylinder barrel sidewall is provided with the first through hole, the second through hole and third through-hole, first through hole, the second through hole and third through-hole are in cylinder barrel axially interval setting successively, the first plinth is provided with in the first through hole, first plinth by the first through hole with run through cavity and be communicated with, the second plinth is provided with in the second through hole, second plinth by the second through hole with run through cavity and be communicated with, be provided with the 3rd plinth at third through-hole place, the 3rd plinth by third through-hole with run through cavity and be communicated with;
What first piston bar was arranged on cylinder barrel vertically runs through in cavity, first piston bar one end is stretched out from cylinder barrel is open-ended, first piston bar is positioned at the outside one end of cylinder barrel and is provided with the first support portion, first piston is fixed on the sidewall of first piston bar, first piston cylinder barrel to run through in cavity and between the first through hole and the second through hole, the first sealing member is provided with between first piston and inner wall of cylinder, it is outside that first orienting sleeve is enclosed within first piston bar, its one end away from first piston is provided with the first fixed part, first orienting sleeve is positioned at cylinder barrel and is fixed by the first fixed part and cylinder barrel, first orienting sleeve is positioned at the side of the first through hole away from the second through hole, the second sealing member is provided with between first orienting sleeve and first piston bar,
What the second piston rod was arranged on cylinder barrel vertically runs through in cavity, the axis of the second piston rod and first piston bar is located along the same line, second piston rod one end is stretched out from cylinder barrel away from first piston bar one end open, second piston rod is positioned at the outside one end of cylinder barrel and is provided with the second support portion, second piston is fixed on the sidewall of the second piston rod, second piston cylinder barrel to run through in cavity and between the second through hole and third through-hole, the 3rd sealing member is provided with between second piston and inner wall of cylinder, it is outside that second orienting sleeve is enclosed within the second piston rod, its one end away from the second piston is provided with the second fixed part, second orienting sleeve is positioned at cylinder barrel and is fixed by the second fixed part and cylinder barrel, second orienting sleeve is positioned at the side of third through-hole away from the second through hole, the 4th sealing member is provided with between second orienting sleeve and the second piston rod.
Preferably, cylinder barrel is provided with fourth hole, and fourth hole place is provided with the first fastener, and first piston bar is provided with the first mounting hole, and the first fastener is fixed to the first mounting hole by fourth hole, and cylinder barrel is fixedly connected with first piston bar.
Preferably, cylinder barrel is provided with fifth hole, and fifth hole place is provided with the second fastener, and the second piston rod is provided with the second mounting hole, and the second fastener is fixed to the second mounting hole by fifth hole, and cylinder barrel is fixedly connected with the second piston rod.
Preferably, be also provided with the first dust ring between the first orienting sleeve and first piston bar, the first dust ring is positioned at the first orienting sleeve and arranges away from the side of first piston.
Preferably, be also provided with the second dust ring between the second orienting sleeve and the second piston rod, the second dust ring is positioned at the second orienting sleeve and arranges away from the side of the second piston.
In the present invention, the bidirectional hydraulic jack proposed, cylinder barrel inside has runs through cavity, cylinder barrel two ends are respectively equipped with the first orienting sleeve and the second orienting sleeve, cylinder barrel sidewall is provided with and the first plinth running through cavity and be communicated with, second plinth and the 3rd plinth, the first piston bar and the second piston rod that arrange vertically is provided with in through cavities, first piston bar stretches out from the first orienting sleeve and the second orienting sleeve intermediate openings away from one end of first piston bar respectively away from one end of the second piston rod and the second piston rod, first piston bar and the second piston rod outer wall are respectively equipped with first piston and the second piston, first piston is in cylinder barrel between the first plinth and the second plinth, second piston is between the second plinth and the 3rd plinth, sealing member is equipped with between piston and cylinder barrel and between orienting sleeve and piston rod.By the hydraulic support top beam balance holding device of above-mentioned optimal design, compact overall structure, reasonable in design, bidirectional hydraulic can be realized support, in Reusability process, Stability Analysis of Structures is reliable, mechanical precision is high, and sealing member ensures that working medium does not leak, and dust ring prevents external dust impurity from entering in cylinder barrel and causes damage to each parts simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of bidirectional hydraulic jack that the present invention proposes.
Detailed description of the invention
As shown in Figure 1, Fig. 1 is the structural representation of a kind of bidirectional hydraulic jack that the present invention proposes.
With reference to Fig. 1, a kind of bidirectional hydraulic jack that the present invention proposes, comprising: cylinder barrel 1, first piston 2, second piston 3, first piston bar 4, second piston rod 5, first orienting sleeve 6, second orienting sleeve 7;
Cylinder barrel 1 inside has runs through cavity and two ends have opening, cylinder barrel 1 sidewall is provided with the first through hole, second through hole, third through-hole, fourth hole and fifth hole, first through hole, second through hole and third through-hole are in cylinder barrel 1 axially interval setting successively, fourth hole is between the first through hole and the second through hole, fifth hole is between the second through hole and third through-hole, the first plinth 11 is provided with in the first through hole, first plinth 11 by the first through hole with run through cavity and be communicated with, the second plinth 12 is provided with in the second through hole, second plinth 12 by the second through hole with run through cavity and be communicated with, the 3rd plinth 13 is provided with at third through-hole place, 3rd plinth 13 by third through-hole with run through cavity and be communicated with, fourth hole place is provided with the first fastener 81, fifth hole place is provided with the second fastener 82,
What first piston bar 4 was arranged on cylinder barrel 1 vertically runs through in cavity, first piston bar 4 one end is stretched out from cylinder barrel 1 is open-ended, first piston bar 4 is positioned at the outside one end of cylinder barrel 1 and is provided with the first support portion 41, first piston bar 4 bar wall is provided with the first mounting hole, first fastener 81 is fixed to the first mounting hole by fourth hole, cylinder barrel 1 is fixedly connected with first piston bar 4, first piston 2 is fixed on the sidewall of first piston bar 4, first piston 2 cylinder barrel 1 to run through in cavity and between the first through hole and the second through hole, the first sealing member is provided with between first piston 2 and cylinder barrel 1 inwall, it is outside that first orienting sleeve 6 is enclosed within first piston bar 4, its one end away from first piston 2 is provided with the first fixed part, first orienting sleeve 6 is positioned at cylinder barrel 1 and is fixed by the first fixed part and cylinder barrel 1, first orienting sleeve 6 is positioned at the side of the first through hole away from the second through hole, the second sealing member and the first dust ring 91 is provided with between first orienting sleeve 6 and first piston bar 4, first dust ring 91 is positioned at the first orienting sleeve 6 and arranges away from the side of first piston 2,
What the second piston rod 5 was arranged on cylinder barrel 1 vertically runs through in cavity, second piston rod 5 is located along the same line with the axis of first piston bar 4, second piston rod 5 one end is stretched out from cylinder barrel 1 away from first piston bar 4 one end open, second piston rod 5 is positioned at the outside one end of cylinder barrel 1 and is provided with the second support portion 51, second piston rod 5 bar wall is provided with the second mounting hole, second fastener 82 is fixed to the second mounting hole by fifth hole, cylinder barrel 1 is fixedly connected with the second piston rod 5, second piston 3 is fixed on the sidewall of the second piston rod 5, second piston 3 cylinder barrel 1 to run through in cavity and between the second through hole and third through-hole, the 3rd sealing member is provided with between second piston 3 and cylinder barrel 1 inwall, it is outside that second orienting sleeve 7 is enclosed within the second piston rod 5, its one end away from the second piston 3 is provided with the second fixed part, second orienting sleeve 7 is positioned at cylinder barrel 1 and is fixed by the second fixed part and cylinder barrel 1, second orienting sleeve 7 is positioned at the side of third through-hole away from the second through hole, the 4th sealing member and the second dust ring 92 is provided with between second orienting sleeve 7 and the second piston rod 5, second dust ring 92 is positioned at the second orienting sleeve 7 and arranges away from the side of the second piston 3.
In the bidirectional hydraulic jack working process of the present embodiment, first cylinder barrel is fixed between two Support Positions, first support portion of first piston bar is against a Support Position, second support portion of the second piston rod is against another Support Position, flow into working medium from the second plinth in cylinder barrel, working medium enters in the space between first piston and the second piston, promotion first piston and the second piston move respectively to cylinder barrel two ends, working medium simultaneously between first piston and the first orienting sleeve flows out from the first plinth, and the working medium between the second piston and the second orienting sleeve flows out from the 3rd plinth, carry out promotion stroke, realize the first support portion and the second support portion respectively to two end supports first Support Position and the second Support Position, during reset, working medium flows into cylinder barrel from the first plinth and the 3rd plinth, enter between first piston and the first orienting sleeve and between the second piston and the second orienting sleeve, promote first piston and the second piston relative movement, working medium simultaneously between first piston and the second piston flows out from the second plinth, realizes the reset of piston and piston rod.
In the present embodiment, the bidirectional hydraulic jack proposed, cylinder barrel inside has runs through cavity, cylinder barrel two ends are respectively equipped with the first orienting sleeve and the second orienting sleeve, cylinder barrel sidewall is provided with and the first plinth running through cavity and be communicated with, second plinth and the 3rd plinth, the first piston bar and the second piston rod that arrange vertically is provided with in through cavities, first piston bar stretches out from the first orienting sleeve and the second orienting sleeve intermediate openings away from one end of first piston bar respectively away from one end of the second piston rod and the second piston rod, first piston bar and the second piston rod outer wall are respectively equipped with first piston and the second piston, first piston is in cylinder barrel between the first plinth and the second plinth, second piston is between the second plinth and the 3rd plinth, sealing member is equipped with between piston and cylinder barrel and between orienting sleeve and piston rod.By the hydraulic support top beam balance holding device of above-mentioned optimal design, compact overall structure, reasonable in design, bidirectional hydraulic can be realized support, in Reusability process, Stability Analysis of Structures is reliable, mechanical precision is high, and sealing member ensures that working medium does not leak, and dust ring prevents external dust impurity from entering in cylinder barrel and causes damage to each parts simultaneously.
In a specific embodiment, in the course of the work, according to specific works environment, the first fastener can be adopted to be fixedly connected with cylinder barrel by first piston bar, or adopt the second fastener to be fixedly connected with cylinder barrel by the second piston rod, carry out the work of one-way hydraulic jack.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a bidirectional hydraulic jack, it is characterized in that, comprising: cylinder barrel (1), first piston (2), the second piston (3), first piston bar (4), the second piston rod (5), the first orienting sleeve (6), the second orienting sleeve (7);
Cylinder barrel (1) inside has runs through cavity and two ends have opening, cylinder barrel (1) sidewall is provided with the first through hole, second through hole and third through-hole, first through hole, second through hole and third through-hole are in cylinder barrel (1) axially interval setting successively, the first plinth (11) is provided with in the first through hole, first plinth (11) by the first through hole with run through cavity and be communicated with, the second plinth (12) is provided with in the second through hole, second plinth (12) by the second through hole with run through cavity and be communicated with, the 3rd plinth (13) is provided with at third through-hole place, 3rd plinth (13) by third through-hole with run through cavity and be communicated with,
What first piston bar (4) was arranged on cylinder barrel (1) vertically runs through in cavity, first piston bar (4) one end is stretched out from cylinder barrel (1) is open-ended, first piston bar (4) is positioned at cylinder barrel (1) outside one end and is provided with the first support portion (41), first piston (2) is fixed on the sidewall of first piston bar (4), first piston (2) be positioned at cylinder barrel (1) run through cavity and between the first through hole and the second through hole, the first sealing member is provided with between first piston (2) and cylinder barrel (1) inwall, it is outside that first orienting sleeve (6) is enclosed within first piston bar (4), its one end away from first piston (2) is provided with the first fixed part, first orienting sleeve (6) is positioned at cylinder barrel (1) and is fixed by the first fixed part and cylinder barrel (1), first orienting sleeve (6) is positioned at the side of the first through hole away from the second through hole, the second sealing member is provided with between first orienting sleeve (6) and first piston bar (4),
What the second piston rod (5) was arranged on cylinder barrel (1) vertically runs through in cavity, second piston rod (5) is located along the same line with the axis of first piston bar (4), second piston rod (5) one end is stretched out from cylinder barrel (1) away from first piston bar (4) one end open, second piston rod (5) is positioned at cylinder barrel (1) outside one end and is provided with the second support portion (51), second piston (3) is fixed on the sidewall of the second piston rod (5), second piston (3) be positioned at cylinder barrel (1) run through cavity and between the second through hole and third through-hole, the 3rd sealing member is provided with between second piston (3) and cylinder barrel (1) inwall, it is outside that second orienting sleeve (7) is enclosed within the second piston rod (5), its one end away from the second piston (3) is provided with the second fixed part, second orienting sleeve (7) is positioned at cylinder barrel (1) and is fixed by the second fixed part and cylinder barrel (1), second orienting sleeve (7) is positioned at the side of third through-hole away from the second through hole, the 4th sealing member is provided with between second orienting sleeve (7) and the second piston rod (5).
2. bidirectional hydraulic jack according to claim 1, it is characterized in that, cylinder barrel (1) is provided with fourth hole, fourth hole place is provided with the first fastener (81), first piston bar (4) is provided with the first mounting hole, first fastener (81) is fixed to the first mounting hole by fourth hole, and cylinder barrel (1) is fixedly connected with first piston bar (4).
3. bidirectional hydraulic jack according to claim 1, it is characterized in that, cylinder barrel (1) is provided with fifth hole, fifth hole place is provided with the second fastener (82), second piston rod (5) is provided with the second mounting hole, second fastener (82) is fixed to the second mounting hole by fifth hole, and cylinder barrel (1) is fixedly connected with the second piston rod (5).
4. bidirectional hydraulic jack according to claim 1, it is characterized in that, also be provided with the first dust ring (91) between first orienting sleeve (6) and first piston bar (4), the first dust ring (91) is positioned at the first orienting sleeve (6) and arranges away from the side of first piston (2).
5. bidirectional hydraulic jack according to claim 1, it is characterized in that, also be provided with the second dust ring (92) between second orienting sleeve (7) and the second piston rod (5), the second dust ring (92) is positioned at the second orienting sleeve (7) and arranges away from the side of the second piston (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510030474.5A CN104609330B (en) | 2015-01-21 | 2015-01-21 | Bidirectional hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510030474.5A CN104609330B (en) | 2015-01-21 | 2015-01-21 | Bidirectional hydraulic jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104609330A true CN104609330A (en) | 2015-05-13 |
| CN104609330B CN104609330B (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510030474.5A Active CN104609330B (en) | 2015-01-21 | 2015-01-21 | Bidirectional hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104609330B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948410A (en) * | 2015-06-24 | 2015-09-30 | 季金锋 | Booster pump and boosting method thereof |
| CN109263117A (en) * | 2017-07-18 | 2019-01-25 | 董祥义 | A kind of hydraulic press |
| CN109281888A (en) * | 2017-07-19 | 2019-01-29 | 董祥义 | A kind of reversed double plunger hydraulic press cylinder of single cylinder |
| CN109696053A (en) * | 2018-12-29 | 2019-04-30 | 巢湖云海镁业有限公司 | Bidirectional hydraulic pusher |
| CN109764684A (en) * | 2018-12-29 | 2019-05-17 | 巢湖云海镁业有限公司 | Bidirectional hydraulic material-pulling device for smelting furnace |
| CN113833714A (en) * | 2021-10-20 | 2021-12-24 | 北京航天发射技术研究所 | Bidirectional telescopic cylinder |
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| CN203269456U (en) * | 2013-06-06 | 2013-11-06 | 郑伟 | Two-way hydraulic side-pushing jack for bracket |
| CN103896178A (en) * | 2014-03-24 | 2014-07-02 | 江苏江北液压机械制造有限公司 | Lifting jack bidirectional hydraulic device and manufacturing method thereof |
| CN204549932U (en) * | 2015-01-21 | 2015-08-12 | 巨隆液压设备(集团)有限公司 | A kind of bidirectional hydraulic jack |
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2015
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| US6546725B2 (en) * | 2000-12-19 | 2003-04-15 | Rongium Zhu | Hydraulic jack and a hydraulic circuit for such a hydraulic jack |
| CN201512385U (en) * | 2009-09-24 | 2010-06-23 | 郑州四维机电设备制造有限公司 | Jack |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948410A (en) * | 2015-06-24 | 2015-09-30 | 季金锋 | Booster pump and boosting method thereof |
| CN104948410B (en) * | 2015-06-24 | 2018-07-10 | 季金锋 | A kind of booster pump and its boosting method |
| CN109263117A (en) * | 2017-07-18 | 2019-01-25 | 董祥义 | A kind of hydraulic press |
| CN109281888A (en) * | 2017-07-19 | 2019-01-29 | 董祥义 | A kind of reversed double plunger hydraulic press cylinder of single cylinder |
| CN109696053A (en) * | 2018-12-29 | 2019-04-30 | 巢湖云海镁业有限公司 | Bidirectional hydraulic pusher |
| CN109764684A (en) * | 2018-12-29 | 2019-05-17 | 巢湖云海镁业有限公司 | Bidirectional hydraulic material-pulling device for smelting furnace |
| CN113833714A (en) * | 2021-10-20 | 2021-12-24 | 北京航天发射技术研究所 | Bidirectional telescopic cylinder |
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| Publication number | Publication date |
|---|---|
| CN104609330B (en) | 2017-02-22 |
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