CN104609330B - Bidirectional hydraulic jack - Google Patents
Bidirectional hydraulic jack Download PDFInfo
- Publication number
- CN104609330B CN104609330B CN201510030474.5A CN201510030474A CN104609330B CN 104609330 B CN104609330 B CN 104609330B CN 201510030474 A CN201510030474 A CN 201510030474A CN 104609330 B CN104609330 B CN 104609330B
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- CN
- China
- Prior art keywords
- piston
- hole
- cylinder barrel
- piston bar
- fairlead
- 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.)
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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, more particularly, to a kind of bidirectional hydraulic jack.
Background technology
It is conventional support meanss in fully mechanized mining operation that side pushes away jack.In existing jack work process, solid using one end
Fixed, one end stroke, thus carry out unidirectional support, single-way moving.However, due to exploiting narrow space, environment tool has certain limitations,
And mined bed generally has certain inclination angle.Therefore, in this case, worked using unidirectional jack, be inconvenient, and
Increase exploitation difficulty and cost of winning.
Content of the invention
For solving technical problem present in background technology, the present invention proposes a kind of bidirectional hydraulic jack, structure design
Rationally, good integrity, is capable of Bidirectional supporting.
A kind of bidirectional hydraulic jack proposed by the present invention, including：Cylinder barrel, first piston, second piston, first piston
Bar, second piston bar, the first fairlead, the second fairlead；
Have inside cylinder barrel and run through cavity and two ends have opening, cylinder barrel side wall be provided with first through hole, the second through hole and
Third through-hole, first through hole, the second through hole and third through-hole interval setting successively in cylinder barrel axial direction, it is provided with first through hole
First plinth, the first plinth is connected with running through cavity by first through hole, is provided with the second plinth in the second through hole, the
Two plinths are connected with running through cavity by the second through hole, are provided with the 3rd plinth at third through-hole, and the 3rd plinth passes through
Third through-hole connects with running through cavity；
What First piston bar was axially arranged on cylinder barrel runs through in cavity, and First piston bar one end is stretched from cylinder barrel is open-ended
Go out, First piston bar is located at the outside one end of cylinder barrel and is provided with the first supporting part, and first piston is fixed on the side wall of First piston bar,
First piston is located at running through in cavity and being located between first through hole and the second through hole of cylinder barrel, first piston and inner wall of cylinder it
Between be provided with first seal, the first fairlead is enclosed within outside First piston bar, and away from one end of first piston, to be provided with first solid for it
Determine portion, the first fairlead is located in cylinder barrel and is fixed by the first fixed part and cylinder barrel, it is remote that the first fairlead is located at first through hole
It is provided with second seal between the side of the second through hole, the first fairlead and First piston bar；
What second piston bar was axially arranged on cylinder barrel runs through in cavity, the axis position of second piston bar and First piston bar
On same straight line, second piston bar one end is stretched out away from First piston bar one end open from cylinder barrel, and second piston bar is located at cylinder
The outside one end of cylinder is provided with the second supporting part, and second piston is fixed on the side wall of second piston bar, and second piston is located at cylinder barrel
Run through in cavity and be located between the second through hole and third through-hole, between second piston and inner wall of cylinder, be provided with the 3rd sealing member,
Second fairlead is enclosed within outside second piston bar, and it is provided with the second fixed part, the second fairlead position away from one end of second piston
Fix in cylinder barrel and by the second fixed part and cylinder barrel, the second fairlead is located at the side away from the second through hole for the third through-hole,
It is provided with the 4th sealing member between second fairlead and second piston bar.
Preferably, cylinder barrel is provided with fourth hole, is provided with the first securing member at fourth hole, and First piston bar is provided with
One installing hole, the first securing member can be fixed to the first installing hole by fourth hole, so that cylinder barrel is fixedly connected with First piston bar.
Preferably, cylinder barrel is provided with fifth hole, is provided with the second securing member at fifth hole, and second piston bar is provided with
Two installing holes, the second securing member can be fixed to the second installing hole by fifth hole, so that cylinder barrel is fixedly connected with second piston bar.
Preferably, it is additionally provided with the first dust ring between the first fairlead and First piston bar, the first dust ring is located at first
Fairlead is arranged away from the side of first piston.
Preferably, it is additionally provided with the second dust ring between the second fairlead and second piston bar, the second dust ring is located at second
Fairlead is arranged away from the side of second piston.
In the present invention, the bidirectional hydraulic jack that proposed, have inside cylinder barrel and run through cavity, cylinder barrel is respectively arranged at two ends with
First fairlead and the second fairlead, cylinder barrel side wall be provided with run through the first plinth that cavity connects, the second plinth and
3rd plinth, is provided with axially disposed First piston bar and second piston bar in through cavities, First piston bar is away from
One end of two piston rods and second piston bar away from First piston bar one end respectively from the first fairlead and the second fairlead
Intermediate openings are stretched out, and First piston bar and second piston bar outer wall are respectively equipped with first piston and second piston, first piston
In cylinder barrel between the first plinth and the second plinth, second piston is located between the second plinth and the 3rd plinth,
It is equipped with sealing member between piston and cylinder barrel and between fairlead and piston rod.By the hydraulic support top of above-mentioned optimization design
Weigh holding meanss for Liangping, and compact overall structure is reasonable in design, is capable of bidirectional hydraulic and supports, ties during Reusability
Structure is reliable and stable, and mechanical precision is high, and sealing member ensures that working media does not leak, and dust ring prevents external dust impurity simultaneously
Enter and in cylinder barrel, each part is caused to damage.
Brief description
Fig. 1 is a kind of structural representation of bidirectional hydraulic jack proposed by the present invention.
Specific embodiment
As shown in figure 1, Fig. 1 is a kind of structural representation of bidirectional hydraulic jack proposed by the present invention.
Reference Fig. 1, a kind of bidirectional hydraulic jack proposed by the present invention, including：Cylinder barrel 1, first piston 2, second piston
3rd, First piston bar 4, second piston bar 5, the first fairlead 6, the second fairlead 7；
Have inside cylinder barrel 1 and run through cavity and two ends have opening, cylinder barrel 1 side wall be provided with first through hole, the second through hole,
Third through-hole, fourth hole and fifth hole, first through hole, the second through hole and third through-hole are spaced in cylinder barrel 1 axial direction successively
Setting, fourth hole is located between first through hole and the second through hole, and fifth hole is located between the second through hole and third through-hole,
It is provided with the first plinth 11, the first plinth 11 is connected with running through cavity by first through hole, in the second through hole at first through hole
Place is provided with the second plinth 12, and the second plinth 12 is connected with running through cavity by the second through hole, is provided with third through-hole
Three plinths 13, the 3rd plinth 13 passes through third through-hole and runs through cavity and connect, and is provided with the first securing member 81 at fourth hole,
It is provided with the second securing member 82 at fifth hole；
What First piston bar 4 was axially arranged on cylinder barrel 1 runs through in cavity, and First piston bar 4 one end is opened from cylinder barrel 1 end
Mouth stretches out, and First piston bar 4 is located at the outside one end of cylinder barrel 1 and is provided with the first supporting part 41, and First piston bar 4 bar wall is provided with first
Installing hole, the first securing member 81 can be fixed to the first installing hole by fourth hole, makes cylinder barrel 1 and First piston bar 4 fixing even
Connect, first piston 2 is fixed on the side wall of First piston bar 4, first piston 2 is located at running through in cavity and being located at the of cylinder barrel 1
Between one through hole and the second through hole, between first piston 2 and cylinder barrel 1 inwall, it is provided with first seal, the first fairlead 6 is enclosed within
Outside one piston rod 4, it is provided with the first fixed part away from one end of first piston 2, and the first fairlead 6 is located in cylinder barrel 1 and logical
Cross the first fixed part fixing with cylinder barrel 1, the first fairlead 6 is located at the side away from the second through hole for the first through hole, the first fairlead 6
Be provided with second seal and the first dust ring 91 and First piston bar 4 between, the first dust ring 91 be located at the first fairlead 6 away from
The side setting of first piston 2；
What second piston bar 5 was axially arranged on cylinder barrel 1 runs through in cavity, the axle of second piston bar 5 and First piston bar 4
Line is located along the same line, and second piston bar 5 one end is stretched out away from First piston bar 4 one end open from cylinder barrel 1, second piston bar
5 are located at the outside one end of cylinder barrel 1 is provided with the second supporting part 51, and second piston bar 5 bar wall is provided with the second installing hole, the second securing member
82 can be fixed to the second installing hole by fifth hole, so that cylinder barrel 1 is fixedly connected with second piston bar 5, second piston 3 is fixed on
On the side wall of second piston bar 5, second piston 3 be located at cylinder barrel 1 run through in cavity and be located at the second through hole and third through-hole it
Between, it is provided with the 3rd sealing member between second piston 3 and cylinder barrel 1 inwall, the second fairlead 7 is enclosed within outside second piston bar 5, and it is remote
It is provided with the second fixed part from one end of second piston 3, the second fairlead 7 is located in cylinder barrel 1 and by the second fixed part and cylinder barrel 1
Fixing, the second fairlead 7 is located at third through-hole away from the side of the second through hole, sets between the second fairlead 7 and second piston bar 5
There are the 4th sealing member and the second dust ring 92, the second dust ring 92 sets away from the side of second piston 3 positioned at the second fairlead 7
Put.
In the bidirectional hydraulic jack work process of the present embodiment, first by cylinder barrel be fixed on two Support Positions it
Between, against a Support Position, the second supporting part of second piston bar is against another support for the first supporting part of First piston bar
Position, flows in cylinder barrel to working media from the second plinth, working media enters the sky between first piston and second piston
Interior, promote first piston and second piston to move to cylinder barrel two ends respectively, simultaneously between first piston and the first fairlead
Working media flows out from the first plinth, and the working media between second piston and the second fairlead is from the 3rd plinth stream
Go out, carry out promoting stroke, realize the first supporting part and the second supporting part supports the first Support Position and second to two ends respectively
Support position；During reset, working media flows into cylinder barrel from the first plinth and the 3rd plinth, enters first piston and the first guiding
Between set and between second piston and the second fairlead, promote first piston and second piston relative movement, first live simultaneously
Working media between plug and second piston flows out from the second plinth, realizes the reset of piston and piston rod.
In the present embodiment, the bidirectional hydraulic jack being proposed, has inside cylinder barrel and runs through cavity, and cylinder barrel two ends are respectively
It is provided with the first fairlead and the second fairlead, cylinder barrel side wall is provided with and runs through the first plinth, the second joint that cavity connects
Seat and the 3rd plinth, are provided with axially disposed First piston bar and second piston bar, First piston bar is remote in through cavities
Lead from the first fairlead and second respectively away from one end of First piston bar from one end of second piston bar and second piston bar
Stretch out to set intermediate openings, First piston bar and second piston bar outer wall be respectively equipped with first piston and second piston, first
Piston is located in cylinder barrel between the first plinth and the second plinth, second piston be located at the second plinth and the 3rd plinth it
Between, it is equipped with sealing member between piston and cylinder barrel and between fairlead and piston rod.Propped up by the hydraulic pressure of above-mentioned optimization design
Frame back timber balance holding meanss, compact overall structure, reasonable in design, it is capable of bidirectional hydraulic and support, in Reusability process
Middle Stability Analysis of Structures is reliable, and mechanical precision is high, and sealing member ensures that working media does not leak, and dust ring prevents external dust simultaneously
Impurity enters and in cylinder barrel, each part is caused to damage.
In a specific embodiment, in the course of the work, according to specific works environment, can be using the first securing member by first
Piston rod is fixedly connected with cylinder barrel, or is fixedly connected second piston bar with cylinder barrel using the second securing member, carries out unidirectional liquid
The work of pressure jack.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (5)
1. a kind of bidirectional hydraulic jack is it is characterised in that include：Cylinder barrel (1), first piston (2), second piston (3), first
Piston rod (4), second piston bar (5), the first fairlead (6), the second fairlead (7)；
Have inside cylinder barrel (1) and run through cavity and two ends have opening, cylinder barrel (1) side wall is provided with first through hole, the second through hole
And third through-hole, first through hole, the second through hole and third through-hole interval setting successively in cylinder barrel (1) axial direction, in first through hole
Place is provided with the first plinth (11), and the first plinth (11) is connected with running through cavity by first through hole, sets in the second through hole
There is the second plinth (12), the second plinth (12) is connected with running through cavity by the second through hole, be provided with third through-hole
Three plinths (13), the 3rd plinth (13) is connected with running through cavity by third through-hole；
What First piston bar (4) was axially arranged on cylinder barrel (1) runs through in cavity, and First piston bar (4) one end is held from cylinder barrel (1)
Portion's opening stretches out, and First piston bar (4) is located at the outside one end of cylinder barrel (1) and is provided with the first supporting part (41), and first piston (2) is fixing
On the side wall of First piston bar (4), first piston (2) is located at running through in cavity and being located at first through hole and the of cylinder barrel (1)
Between two through holes, between first piston (2) and cylinder barrel (1) inwall, it is provided with first seal, the first fairlead (6) is enclosed within first and lives
Stopper rod (4) is outside, and it is provided with the first fixed part away from one end of first piston (2), and the first fairlead (6) is located in cylinder barrel (1)
And fixing with cylinder barrel (1) by the first fixed part, the first fairlead (6) is located at the side away from the second through hole for the first through hole, the
It is provided with second seal between one fairlead (6) and First piston bar (4)；
What second piston bar (5) was axially arranged on cylinder barrel (1) runs through in cavity, second piston bar (5) and First piston bar (4)
Axis be located along the same line, second piston bar (5) one end is stretched out away from First piston bar (4) one end open from cylinder barrel (1),
Second piston bar (5) is located at the outside one end of cylinder barrel (1) and is provided with the second supporting part (51), and second piston (3) is fixed on second piston
On the side wall of bar (5), second piston (3) is located at running through in cavity and being located between the second through hole and third through-hole of cylinder barrel (1),
It is provided with the 3rd sealing member, the second fairlead (7) is enclosed within second piston bar (5) outward between second piston (3) and cylinder barrel (1) inwall
Portion, it is provided with the second fixed part away from one end of second piston (3), and the second fairlead (7) is located in cylinder barrel (1) and passes through second
Fixed part is fixing with cylinder barrel (1), and the second fairlead (7) is located at the side away from the second through hole for the third through-hole, the second fairlead (7)
And second piston bar is provided with the 4th sealing member between (5).
2. bidirectional hydraulic jack according to claim 1 is it is characterised in that cylinder barrel (1) is provided with fourth hole, and the 4th
Through hole is provided with the first securing member (81), and First piston bar (4) is provided with the first installing hole, and the first securing member (81) can be by the
Four through holes are fixed to the first installing hole, so that cylinder barrel (1) is fixedly connected with First piston bar (4).
3. bidirectional hydraulic jack according to claim 1 is it is characterised in that cylinder barrel (1) is provided with fifth hole, and the 5th
Through hole is provided with the second securing member (82), and second piston bar (5) is provided with the second installing hole, and the second securing member (82) can be by the
Five through holes are fixed to the second installing hole, so that cylinder barrel (1) is fixedly connected with second piston bar (5).
4. bidirectional hydraulic jack according to claim 1 is it is characterised in that the first fairlead (6) and First piston bar
(4) it is additionally provided with the first dust ring (91) between, the first dust ring (91) is located at the first fairlead (6) away from first piston (2)
Side is arranged.
5. bidirectional hydraulic jack according to claim 1 is it is characterised in that the second fairlead (7) and second piston bar
(5) it is additionally provided with the second dust ring (92) between, the second dust ring (92) is located at the second fairlead (7) away from second piston (3)
Side is arranged.
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 CN104609330A (en) | 2015-05-13 |
| CN104609330B true CN104609330B (en) | 2017-02-22 |
Family
ID=53144031
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) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104948410B (en) * | 2015-06-24 | 2018-07-10 | 季金锋 | A kind of booster pump and its boosting method |
| CN109281888A (en) * | 2017-07-19 | 2019-01-29 | 董祥义 | A kind of reversed double plunger hydraulic press cylinder of single cylinder |
| CN109263117A (en) * | 2017-07-18 | 2019-01-25 | 董祥义 | A kind of hydraulic press |
| 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 |
| CN109696053A (en) * | 2018-12-29 | 2019-04-30 | 巢湖云海镁业有限公司 | Bidirectional hydraulic pusher |
| 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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|---|---|---|---|---|
| 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 |
| CN202575851U (en) * | 2012-03-28 | 2012-12-05 | 成都阿朗科技有限责任公司 | Bidirectional lifting jack |
| CN203159124U (en) * | 2013-04-17 | 2013-08-28 | 济宁金世诺机电设备有限公司 | Balance jack for hydraulic support |
| 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 |
-
2015
- 2015-01-21 CN CN201510030474.5A patent/CN104609330B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202575851U (en) * | 2012-03-28 | 2012-12-05 | 成都阿朗科技有限责任公司 | Bidirectional lifting jack |
| CN203159124U (en) * | 2013-04-17 | 2013-08-28 | 济宁金世诺机电设备有限公司 | Balance jack for hydraulic support |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104609330A (en) | 2015-05-13 |
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