CN206290529U - A kind of twin-tub sequential telescopic oil cylinder - Google Patents
A kind of twin-tub sequential telescopic oil cylinder Download PDFInfo
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- CN206290529U CN206290529U CN201621440255.0U CN201621440255U CN206290529U CN 206290529 U CN206290529 U CN 206290529U CN 201621440255 U CN201621440255 U CN 201621440255U CN 206290529 U CN206290529 U CN 206290529U
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Abstract
A kind of twin-tub sequential telescopic oil cylinder, including balanced valve, First piston bar, the first conduit, first piston cylinder body, the communicating pipe of stretching, first pushing-type check valve, second piston bar, second conduit, second piston bar cylinder, the second pushing-type check valve, trimmer valve, first, second connecting tube composition, described twin-tub telescoping cylinder, flexible balanced valve is connected with First piston bar, and the safe self-locking of telescoping cylinder is realized by the balanced valve that stretches；Realize first stretching first piston cylinder by the first pushing-type check valve of the head in first piston cylinder body and stretch the order of second piston cylinder again and stretch out, the order retraction of first contracting second piston cylinder contracting first piston cylinder again is realized by the second pushing-type check valve of second piston club head.The gentle transition that two cylinders switch when realizing retracting by the bottom trimmer valve of second piston cylinder body.
Description
Technical field
The utility model is related to a kind of twin-tub sequential telescopic oil cylinder.
Background technology
In the middle of double telescoping cylinders or three telescoping cylinders or more level telescoping cylinder, cylinder leans on hydraulic oil pipe with the hydraulic oil transmission of cylinder,
Or all in the flexible sequencing problem of several cylinders, or realized by pressure difference using sequence valve, arrive using cylinder diameter section differ from come
Realize sequential telescopic, or more have by banked direction control valves come the telescoping problem of master cylinder cylinder, can so be brought to cylinder pipe layout
Very burden, telescoping cylinder stretches inside arm, it is easy to produce the interference to cause oil leak.
Or being concentrated on a valve body by two check valves of having, it is also that check valve is opened by mechanical collision type,
Very big difficulty so is brought to this valve design and making, so that cost is very high；
There is a kind of pushing-type check valve to be arranged on first piston cylinder bottom, to open pushing-type unidirectional by the Pan Laiding that hits of second piston cylinder bottom
Valve, all away from the one the second connection ends, on telescoping cylinder equipped with flexible pulley after, telescoping cylinder stress can produce certain deformation, together
When due to space reasons, hitting disk can not possibly do very big, and having can hit disk and hit less than check valve very much.Cause flexible stopping.
Utility model content
The utility model solve the deficiencies in the prior art and provide that a kind of compact conformation, layout are simple, check valve is simple,
Parts are few, reliable twin-tub sequential telescopic oil cylinder easy to make.
The technical solution of the utility model is：A kind of twin-tub sequential telescopic oil cylinder, including first piston cylinder and second piston
Cylinder, the first piston cylinder includes first piston cylinder body, the first piston in first piston cylinder body and First piston bar,
The second piston cylinder includes second piston cylinder body, the second piston in second piston cylinder body and second piston bar,
The first conduit is fixed with the First piston bar, the First piston bar inwall is provided with the outer wall of the first conduit
Interval forms the first hydraulic oil channel, and one end of first hydraulic oil channel is connected by oil circuit with first piston cylinder rod chamber
Logical, the other end is connected with the first hydraulic fluid port of flexible balanced valve, and pipe, the outer wall of the communicating pipe are communicated with first conduit
It is flexibly connected with one end inner wall sealing of the first conduit, one end of the communicating pipe is fixed on first piston cylinder body, the other end
It is arranged in the first conduit, and is connected with the second hydraulic fluid port of flexible balanced valve by first conduit, the first piston
When cylinder is acted, the communicating pipe is arranged in the first conduit all the time；
The second conduit is fixed with the second piston bar, the second piston bar inwall is provided with the outer wall of the second conduit
Interval forms the second hydraulic oil channel, and one end of second hydraulic oil channel is connected by oil circuit with second piston cylinder rod chamber
Logical, the other end is connected by the first hydraulic control one-way valve with first piston cylinder rod chamber, and one end of second conduit is by buffering
Valve is connected with second piston cylinder rodless cavity, and the other end is connected by the second connecting tube with communicating pipe；
The first piston cylinder rodless cavity is connected with one end of the first connecting tube, and the other end of first connecting tube passes through
Second hydraulic control one-way valve is connected with the second connecting tube；
The first piston cylinder controls the first hydraulic control one-way valve reverse opening, the second piston when being elongated to extreme position
Cylinder controls the second hydraulic control one-way valve reverse opening when being retracted to extreme position.
Preferably, first, second hydraulic control one-way valve is pushing-type check valve.
Preferably, the first hydraulic control one-way valve, the upper installation of the second piston bar are installed on the first piston cylinder body
There is the second hydraulic control one-way valve, by first piston reverse opening, the second hydraulic control one-way valve passes through the first described hydraulic control one-way valve
Second fairlead reverse opening, the head of the second piston cylinder body that the second fairlead is installed.
Preferably, first hydraulic control one-way valve and the second hydraulic control one-way valve be arranged in first piston cylinder cylinder head and
The head of second piston cylinder.
Preferably, during second piston club head passes through with first piston cylinder cylinder head return articulated joint be hinged, it is described in return be hinged
The oil circuit of head connection first piston cylinder and second piston cylinder.
Due to using said structure, the utility model to have the following advantages that：
1st, the first hydraulic control one-way valve can only be opened by first piston, when it is closed to second piston cylinder rod chamber hydraulic pressure
Oily oil return has locking to act on, and the second hydraulic control one-way valve can only be opened by the second fairlead of second piston cylinder, when it is closed
Rodless cavity hydraulic oil circuit to first piston cylinder has locking to act on, and sequential telescopic is realized by two hydraulically-controlled one-way valves, while
The principle can be used in the middle of the sequential telescopic of three oil cylinders and more Multi-cylinder.
2nd, the first pushing-type check valve and the second pushing-type check valve are arranged in the cylinder head and second piston of first piston cylinder
The head of cylinder, it is to avoid Liang Ge check valves centralized layout, designs and produces difficulty, the shortcoming of high cost.
3rd, the first pushing-type check valve and the second pushing-type check valve are switched by existing part on telescoping cylinder, greatly reduce zero
Part, design and processes are simpler.
In sum, two mechanical check valves are separately mounted on first piston cylinder cylinder head and second piston head, the
One pushing-type check valve is opened by the piston rod top of first piston cylinder, the fairlead that the second pushing-type check valve passes through second piston cylinder cylinder head
Open, that is, facilitate and reliable, layout is simple, and check valve is simple, and parts are few.
Brief description of the drawings
Fig. 1 is hydraulic schematic diagram of the present utility model.
Brief description of the drawings, 1, flexible balanced valve；11st, the first hydraulic fluid port of flexible balanced valve；12nd, the second oil of flexible balanced valve
Mouthful；2nd, first piston cylinder body；21st, the first conduit；22nd, first piston；23rd, First piston bar；24th, communicating pipe；25th, the first hydraulic pressure
Oily passage；4th, the first pushing-type check valve；5th, the second pushing-type check valve；61st, the second conduit；62nd, second piston bar；6th, second piston
Cylinder body；63rd, trimmer valve；64th, the second hydraulic oil channel；8th, the first connecting tube；9th, the second connecting tube.
Specific embodiment
In conjunction with accompanying drawing, technology contents of the present utility model are described further.
As shown in figure 1, a kind of twin-tub sequential telescopic oil cylinder, including first piston cylinder and second piston cylinder, described first lives
Plug cylinder includes first piston cylinder body 2, the first piston 22 in first piston cylinder body 2 and First piston bar 23, described the
Two piston cylinders include second piston cylinder body 6, the second piston in second piston cylinder body 6 and second piston bar 62, described
First piston bar 23 and second piston bar 62 are hollow stem；
The first conduit 21, one end of the First piston bar 23 and the first conduit 21 are fixed with the First piston bar 23
Outer wall be tightly connected, the other end is sealingly mounted on flexible balanced valve 1, the inwall of the First piston bar 23 and the first conduit 21
Outer wall be provided with interval and form the first hydraulic oil channel 25, one end of first hydraulic oil channel 25 is by oil circuit and the first work
Plug cylinder rod chamber is connected, and the other end is connected with the first hydraulic fluid port 11 of flexible balanced valve 1, and pipe is communicated with first conduit 21
24, the outer wall of the communicating pipe 24 is flexibly connected with one end inner wall sealing of the first conduit 21, and one end of the communicating pipe 24 is consolidated
It is scheduled on first piston cylinder body 2, the other end is arranged in the first conduit 21, and by first conduit 21 and flexible balance
Second hydraulic fluid port 12 of valve 1 is connected, and when the first piston cylinder is acted, is arranged on all the time the communicating pipe 24 in first conduit 21；
The second conduit 61, one end of the second piston bar 62 and the second conduit 61 are fixed with the second piston bar 62
Outer wall be tightly connected, the other end is fixed or is hinged on first piston cylinder body 2, and the inwall of second piston bar 62 is led with second
The outer wall of pipe 61 is provided with interval and forms the second hydraulic oil channel 64, and one end of second hydraulic oil channel 64 is by oil circuit and the
Two piston cylinder rod chambers are connected, and the other end is connected by the first pushing-type check valve 4 with first piston cylinder rod chamber, and described second leads
One end of pipe 61 is connected by trimmer valve 63 with second piston cylinder rodless cavity, and the other end is by the second connecting tube 9 and communicating pipe 24
Connection；
The first piston cylinder rodless cavity is connected with one end of the first connecting tube 8, and the other end of first connecting tube 8 leads to
The second pushing-type check valve 5 is crossed to be connected with the second connecting tube 61；
The First piston bar 23 controls the reverse opening of the first pushing-type check valve 4, described second when being elongated to extreme position
The elongation of piston rod 62 controls the reverse opening of the second pushing-type check valve 5 when being retracted to extreme position.
Used as a kind of implementation method of the present apparatus, the first pushing-type check valve 4 passes through the reverse opening of first piston 22, the
The head of the second piston cylinder body 6 that two pushing-type check valves 5 are installed by the second fairlead reverse opening, the second fairlead.
When using, together with first piston cylinder body 2 is rigidly fixed with second piston bar 62, it is also possible to by the hinge with oil circuit
The mode of connecing is connected, and First piston bar 23 is hinged with arm body, one the first conduit 21 of welding in First piston bar 23, and hydraulic oil is from stretching
Contracting balanced valve 1 out, leads up to interlayer between the first conduit 21 and First piston bar 23 (i.e. the first hydraulic oil channel) entrance
The rod chamber of first piston cylinder, while hydraulic oil, into second piston bar 62, can be entered back into by the first pushing-type check valve 4
Interlayer (i.e. the first hydraulic oil channel) between the conduit 61 of second piston bar 62 and second, into second piston cylinder to rod chamber；
Another loop is from flexible balanced valve 1 out by the first conduit 21 and communicating pipe 24, and the communicating pipe 24 is flexible in first piston cylinder
During, play Oil Guide and act on, (oil of rodless cavity is first passed through the effect that the second check valve arrives rodless cavity again), then by second
Connecting tube 9, then by the second conduit 61 in second piston bar 62, into the rodless cavity of second piston cylinder；From the second connecting tube 9
An out branch, by the second pushing-type check valve 5, then by the first connecting tube 8, into the rodless cavity of first piston cylinder；
Meanwhile, when first piston cylinder stretches out, because now First piston bar 23 is away from the first pushing-type check valve 4, first
Pushing-type check valve 4 is closed, and hydraulic oil cannot return to the rod chamber of first piston cylinder from the rod chamber of second piston cylinder,
Entering back into flexible balanced valve 1, the i.e. rod chamber of second piston cylinder cannot connect flexible balanced valve 1, and second piston cylinder does not stretch out.When
When first piston cylinder has been stretched soon, first piston 22 opens the first pushing-type check valve 4, and the rod chamber connection of second piston cylinder is flexible flat
Weighing apparatus valve 1, second servo loop leads to, and such second stretches out, and has been achieved in that first piston cylinder is first stretched, then the order that second piston cylinder stretches out
Stretch out.
During retraction, due to stretching out for second piston cylinder, the second fairlead on second piston cylinder body 3 is unidirectional with the second pushing-type
Valve 5 is separated, the reverse closing of the second pushing-type check valve 5, and now the hydraulic oil of the rodless cavity of first piston cylinder is due to the second pushing-type list
To the effect of valve 5, hydraulic oil can't get out, it is impossible to retract, and now, the first pushing-type check valve 4 does not work to rod chamber oil-feed.
The oil circuit of second piston cylinder is logical, and second piston cylinder body starts to retract, the realization order retraction first step, when second piston cylinder body
When having contracted soon, the second fairlead of second piston cylinder pushes the second pushing-type check valve open, and first piston cylinder rodless cavity hydraulic oil is opened,
First piston cylinder starts to retract, realization order retraction second step, the order retraction of first retraction again of being retracted which achieves second.
As shown in figure 1, first piston cylinder body to stretch out hydraulic oil principle as follows：Hydraulic oil enters from flexible balanced valve 1, successively
First connecting tube 9 is entered by First piston bar 23, the first conduit 21, communicating pipe 24, so as to push the second pushing-type check valve 5 open,
Enter the rodless cavity of first piston cylinder body by the second connecting tube 8, so as to promote first piston 22 to act so that low pressure oil is from the
The interlayer (i.e. the first hydraulic oil channel) that the rod chamber of one piston enters between the conduit 21 of First piston bar 23 and first, enters back into
Flexible balanced valve 1, so that first piston cylinder body 2 stretches out.In the process, because the first pushing-type check valve 4 is closed, second
The rod chamber hydraulic oil of piston/cylinder cannot return flexible balanced valve, and second piston cylinder body does not stretch out.
It is as follows that second piston cylinder body stretches out hydraulic oil principle：When first piston cylinder body has been stretched soon, in last several millimeters of rows
Journey, first piston 22 pushes the first pushing-type check valve 4 open so that the first pushing-type check valve 4 is opened, and hydraulic oil is from flexible balanced valve 1
First piston bar 23, the first conduit 21, communicating pipe 24, the first connecting tube is sequentially entered to enter into second piston bar 62, then pass through
Second conduit 61 enters into trimmer valve 63, hence into the rodless cavity to second piston cylinder body, promotes second piston action so that
From the interlayer of the conduit 61 of second piston bar 62 and second, (i.e. the second hydraulic oil leads to the hydraulic oil of the rod chamber of second piston cylinder body
Road), the first pushing-type check valve 4 is entered into, then sequentially enter rod chamber, the First piston bar 23 and first of First piston bar 23
Interlayer (i.e. the first hydraulic oil channel) between conduit, then to flexible balanced valve 1 so that second piston cylinder body stretches out.
Second piston cylinder body retraction hydraulic oil principle is as follows：Hydraulic oil enters the He of First piston bar 23 from flexible balanced valve 1
Interlayer (i.e. the first hydraulic oil channel) between first conduit 21, pushes the first pushing-type check valve 4 open, then enter from second piston bar 62
Enter to the interlayer (i.e. the second hydraulic oil channel) between the conduit 61 of second piston bar 62 and second, have hence into second piston cylinder
Rod cavity, promotes second piston action so that the hydraulic oil of second piston cylinder rodless cavity sequentially enters the second conduit 61, second piston
Bar 62 sequentially enters communicating pipe 24, the last flexible balanced valve of arrival of the first conduit 21 by the first connecting tube 9 again so that second lives
Plug cylinder body is retracted；Now the second pushing-type check valve 5 is closed, and the rodless cavity hydraulic oil of first piston cylinder body cannot oil return, the first work
Plug cylinder can not retract.
First piston cylinder body retraction oil pressure oil principle is as follows：When second piston cylinder body is reduced to bottom, on second piston cylinder body
The second fairlead push the second pushing-type check valve 5 open, hydraulic oil enters the conduit of First piston bar 23 and first from flexible balanced valve 1
Interlayer (i.e. the first hydraulic oil channel) between 21, enters back into first piston cylinder body rod chamber, so as to promote first piston 22 to move
Make so that the hydraulic oil of first piston cylinder body rodless cavity passes sequentially through the second connecting tube 8, the second pushing-type check valve 5 and enters first
Connecting tube 9, flexible balanced valve 1 is returned to by communicating pipe 24, the first conduit 21；
By Fig. 1 principles, first stretch out first piston cylinder and stretch out second piston cylinder again, first retraction second piston cylinder contracts again
Return first piston cylinder；It has been achieved in that exact sequence stretches.
Claims (5)
1. a kind of twin-tub sequential telescopic oil cylinder, it is characterised in that：Including first piston cylinder and second piston cylinder, the first piston
Cylinder includes first piston cylinder body, the first piston in first piston cylinder body and First piston bar, the second piston cylinder
Including second piston cylinder body, the second piston in second piston cylinder body and second piston bar,
It is fixed with the first conduit in the First piston bar, the outer wall of the First piston bar inwall and the first conduit is provided with interval
The first hydraulic oil channel is formed, one end of first hydraulic oil channel is connected by oil circuit with first piston cylinder rod chamber, separately
One end is connected with the first hydraulic fluid port of flexible balanced valve, and pipe, the outer wall of the communicating pipe and the are communicated with first conduit
One end inner wall sealing of one conduit is flexibly connected, and one end of the communicating pipe is fixed on first piston cylinder body, and the other end is set
In the first conduit, and it is connected with the second hydraulic fluid port of flexible balanced valve by first conduit, the first piston cylinder is moved
When making, the communicating pipe is arranged in the first conduit all the time；
It is fixed with the second conduit in the second piston bar, the outer wall of the second piston bar inwall and the second conduit is provided with interval
The second hydraulic oil channel is formed, one end of second hydraulic oil channel is connected by oil circuit with second piston cylinder rod chamber, separately
One end is connected by the first hydraulic control one-way valve with first piston cylinder rod chamber, and one end of second conduit is by trimmer valve and the
Two piston cylinder rodless cavities are connected, and the other end is connected by the second connecting tube with communicating pipe；
The first piston cylinder rodless cavity is connected with one end of the first connecting tube, and the other end of first connecting tube passes through second
Hydraulic control one-way valve is connected with the second connecting tube；
The first piston cylinder controls the first hydraulic control one-way valve reverse opening, the second piston cylinder to receive when being elongated to extreme position
The second hydraulic control one-way valve reverse opening is controlled when being reduced to extreme position.
2. a kind of twin-tub sequential telescopic oil cylinder according to claim 1, it is characterised in that：The first, second hydraulic control list
Pushing-type check valve is to valve.
3. a kind of twin-tub sequential telescopic oil cylinder according to claim 2, it is characterised in that：Pacify on the first piston cylinder body
Equipped with the first hydraulic control one-way valve, the second hydraulic control one-way valve, the first described fluid-control one-way are installed on the second piston bar
By first piston reverse opening, the second hydraulic control one-way valve passes through the second fairlead reverse opening to valve, what the second fairlead was installed
The head of second piston cylinder body.
4. twin-tub sequential telescopic oil cylinder according to claim 3, it is characterised in that：First hydraulic control one-way valve and second
Hydraulic control one-way valve is arranged in the cylinder head of first piston cylinder and the head of second piston cylinder.
5. twin-tub sequential telescopic oil cylinder according to claim 4, it is characterised in that：Second piston club head and first piston
Cylinder cylinder head pass through in return articulated joint be hinged, it is described in return articulated joint connection first piston cylinder and second piston cylinder oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621440255.0U CN206290529U (en) | 2016-12-26 | 2016-12-26 | A kind of twin-tub sequential telescopic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621440255.0U CN206290529U (en) | 2016-12-26 | 2016-12-26 | A kind of twin-tub sequential telescopic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290529U true CN206290529U (en) | 2017-06-30 |
Family
ID=59154076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621440255.0U Withdrawn - After Issue CN206290529U (en) | 2016-12-26 | 2016-12-26 | A kind of twin-tub sequential telescopic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593993A (en) * | 2016-12-26 | 2017-04-26 | 山河智能装备股份有限公司 | Double-cylinder sequential telescopic oil cylinder |
-
2016
- 2016-12-26 CN CN201621440255.0U patent/CN206290529U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593993A (en) * | 2016-12-26 | 2017-04-26 | 山河智能装备股份有限公司 | Double-cylinder sequential telescopic oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170630 Effective date of abandoning: 20180420 |
|
| AV01 | Patent right actively abandoned |