CN207485761U - A kind of regeneration hydraulic lock - Google Patents
A kind of regeneration hydraulic lock Download PDFInfo
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- CN207485761U CN207485761U CN201721313316.1U CN201721313316U CN207485761U CN 207485761 U CN207485761 U CN 207485761U CN 201721313316 U CN201721313316 U CN 201721313316U CN 207485761 U CN207485761 U CN 207485761U
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- oil
- hydraulic control
- way valve
- oil inlet
- check valve
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Abstract
The utility model discloses a kind of regeneration hydraulic locks, include the first oil inlet, second oil inlet, first oil outlet, second oil outlet, first hydraulic control one-way valve, first check valve, second hydraulic control one-way valve and the second check valve, first the first oil inlet of hydraulic control one-way valve unilaterally connected to the first oil outlet, first hydraulic control one-way valve control mouth is connected with the second oil inlet, first the second oil inlet of check valve unilaterally connected to the second oil outlet, tie point between second check valve and the second hydraulic control one-way valve is oil circuit node D, second hydraulic control one-way valve unilaterally connected oil circuit node D to the second oil outlet, second hydraulic control one-way valve control mouth is connected with the first oil inlet, second hydraulic control one-way valve drain tap is connected with the second oil inlet, second check valve unilaterally connected oil circuit node D to the first oil outlet.The utility model is applied to singly go out rod oil cylinder, while have differential regeneration function and with oil cylinder auto-lock function, have the advantages that at low cost and operating efficiency is high.
Description
Technical field
The utility model is related to a kind of regeneration hydraulic locks, belong to technical field of hydraulic pressure.
Background technology
In engineering machinery, such as crane, high-altitude operation vehicle and road obstacle clearing vehicle, to improve its working performance, increase
Stability is equipped with supporting leg.When mechanical work, supporting leg stretches out, and support with supportting, and answers firm reliable, must not bounce back；Work as machine
Tool when driving, retract, and does not stretch out or fall with road bump by supporting leg.Therefore, supporting leg oil circuit must have good self-locking energy
Bidirectional hydraulic lock is widely used in power.
Bidirectional hydraulic lock is usually made of two hydraulic control one-way valves, in oil cylinder fuel cut-off, is capable of having for locked cylinder
Rod cavity and rodless cavity are allowed to rest on any position.But in actual use, other than energy locked cylinder, operating personnel are also uncommon
It hopes when oil cylinder is overhanging, overhanging speed is fast as far as possible, to improve operating efficiency.
Patent CN200920284027 proposes a kind of automatic outrigger stretching speed increasing device, its main feature is that：It is getting off
Increase travel switch on multi-way valve body, to detect landing leg stretching signal, control system sends out throttle increase after receiving signal
Signal increases the running speed of engine by engine oil door control module, so as to fulfill the quick-expansion of supporting leg.But still it deposits
Certain the shortcomings that：Need to increase additional sensor, and pass through control system to realize, there are cost it is higher the shortcomings that；
Engine speed increase has certain delay, also increases oil consumption, and high engine speed also brings high noise, exist use into
The shortcomings that this increase, operational comfort reduce；For supporting leg, due to mostly using singly going out rod oil cylinder, retraction speed
Higher than speed is stretched out, what it is therefore, it is necessary to raising is to stretch out speed, and all the speed-raising of equal magnitude is carried out not to stretching out and retracting
Necessity, the shortcomings that supporting leg retraction speed being brought too fast instead.
Patent CN201310117381 proposes a kind of flow regeneration hydraulic lock valve device, can realize the regeneration work(of flow
Can, so as to make oil cylinder that can quickly stretch out at work, improve operating efficiency.But its spool exists using sliding valve structure
Leakage, the rod chamber of oil cylinder can not be locked with rodless cavity, and leg system has the sealing for supporting No leakage for a long time
It is required that.
Utility model content
Technical problem to be solved in the utility model is the defects of overcoming the prior art, provides a kind of regeneration hydraulic lock.
In order to achieve the above objectives, the utility model provides a kind of regeneration hydraulic lock, include the first oil inlet V1, second into
Hydraulic fluid port V2, the first oil outlet C1, the second oil outlet C2, the first hydraulic control one-way valve, the first check valve, the second hydraulic control one-way valve and
Two check valves, the first oil inlet V1 described in the first hydraulic control one-way valve unilaterally connected to the first oil outlet C1, described
One hydraulic control one-way valve control mouth A1 is connected with the second oil inlet V2, the second oil inlet described in the first check valve unilaterally connected
Mouth V2 to the second oil outlet C2, the tie point between second check valve and second hydraulic control one-way valve are oil circuit section
Point D, the second hydraulic control one-way valve unilaterally connected oil circuit node D are to the second oil outlet C2, the second hydraulic control one-way valve control
Mouth B1 is connected with the first oil inlet V1, and the second hydraulic control one-way valve drain tap B2 is connected with the second oil inlet V2,
The second check valve unilaterally connected oil circuit node D to the first oil outlet C1.
Preferentially, including oil cylinder.
Preferentially, the first oil outlet C1, the second oil outlet C2 are respectively communicated with the oil cylinder both ends.
Preferentially, the oil cylinder is singly goes out rod oil cylinder.
Preferentially, the first oil outlet C1 is connected with the rodless cavity of the oil cylinder.
Preferentially, the second oil outlet C2 is connected with the rod chamber of oil cylinder.
The advantageous effect that the utility model is reached：
The utility model is applied to singly go out rod oil cylinder, while have differential regeneration function and with oil cylinder auto-lock function, and
It does not need to compare the big change of entire Work machine progress, has the advantages that at low cost and operating efficiency is high.
Description of the drawings
Fig. 1 is hydraulic lock of the prior art；
Fig. 2 is the hydraulic lock structure figure in the utility model.
Mark meaning in attached drawing, 1- regeneration hydraulic locks, the first hydraulic control one-way valves of 11-, the first check valves of 12-, the second liquid of 13-
Control check valve, the second check valves of 14-；2- oil cylinders；The first oil inlets of V1-, the second oil inlets of V2-, the first oil outlets of C1-, C2-
Two oil outlets, the control mouth of the first hydraulic control one-way valves of A1-, the control mouth of the second hydraulic control one-way valves of B1-, the second fluid-control one-ways of B2-
The drain tap of valve, D- oil circuit nodes.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings, following embodiment is only used for clearly illustrating this
The technical solution of utility model, and cannot the scope of protection of the utility model be limited with this.
A kind of regeneration hydraulic lock includes the first oil inlet V1, the second oil inlet V2, the first oil outlet C1, second fuel-displaced
Mouth C2, the first hydraulic control one-way valve 11, the first check valve 12, the second hydraulic control one-way valve 13 and the second check valve 14, first liquid
First oil inlet V1 described in control 11 unilaterally connected of check valve is controlled to the first oil outlet C1, first hydraulic control one-way valve 11
Mouth A1 is connected with the second oil inlet V2, the second oil inlet V2 to described second described in 12 unilaterally connected of the first check valve
Oil outlet C2, tie point between second check valve 14 and second hydraulic control one-way valve 13 are oil circuit node D, described the
Two hydraulic control one-way valves, 13 unilaterally connected oil circuit node D to second oil outlet C2, the 13 control mouth B1 of the second hydraulic control one-way valve with
The first oil inlet V1 connections, the 13 drain tap B2 of the second hydraulic control one-way valve is connected with the second oil inlet V2, described
Second check valve, 14 unilaterally connected oil circuit node D to the first oil outlet C1.
Further, including oil cylinder 2.
Further, the first oil outlet C1, the second oil outlet C2 are respectively communicated with 2 both ends of oil cylinder.
Further, the oil cylinder 2 is singly goes out rod oil cylinder.
Further, the first oil outlet C1 is connected with the rodless cavity of the oil cylinder 2, the second oil outlet C2 and oil
The rod chamber connection of cylinder 2.
Operation principle is as follows：
1st, regeneration is stretched out：When the first oil inlet V1 oil inlets, the second oil inlet V2 oil returns, connect at this time with pressure oil liquid for V1 mouthfuls
Logical, V2 mouthfuls connect with oil return fuel tank.Therefore, it is low with the control mouth A1 of the second oil inlet V2 the first hydraulic control one-way valves connected
Pressure, the first hydraulic control one-way valve 11 still keep reversely ending；The the second hydraulic control one-way valve control mouth B1 connected with the first oil inlet V1
It is low pressure with second the second hydraulic control one-way valves of oil inlet V2,13 drain tap B2 for high pressure, under the action of two hydraulic fluid port pressure, the
The two reversely connections of hydraulic control one-way valve 13.
High-voltage oil liquid through the first oil inlet V1, the first hydraulic control one-way valve 11, the first oil outlet C1 to oil cylinder 2 rod chamber.
Meanwhile the fluid of 2 rod chamber of oil cylinder oil cylinder rodless cavity pressure oil liquid push under, through the second oil outlet C2, the second hydraulic control list
To valve 13, the second check valve 14, the first oil outlet C1 to 2 rodless cavity of oil cylinder.Differential oil line is formed, and oil cylinder regeneration is stretched out, and is stretched
Go out speed increase.
2nd, oil cylinder self-locking：When 2 stopping of oil cylinder acts, the first oil inlet V1 and the second oil inlet V2 oil returns simultaneously, with oil
Case connects.At this point, the control mouth of the first hydraulic control one-way valve connected with the second oil outlet is low pressure, the first hydraulic control one-way valve 11 is still
Keep reversely cut-off；The the second hydraulic control one-way valve control mouth B1 connected with the first oil inlet V1 is high pressure, with the second oil inlet V2
Second hydraulic control one-way valve drain tap B2 is low pressure, under the action of two hydraulic fluid port pressure, the second reversely connection of hydraulic control one-way valve 13.
Therefore, 14 collective effect of the first hydraulic control one-way valve 11 and the second check valve, by the rodless cavity fluid locking of oil cylinder 2, the second hydraulic control
13 and first check valve 12 of check valve is rented jointly, and the rod chamber fluid of oil cylinder 2 is locked.That is, oil cylinder 2 is in regenerated liquid
Self-locking is realized under the action of pressure lock 1.
3rd, oil cylinder is retracted：When the first oil inlet V2 oil inlets, the second oil inlet V1 oil returns, connect at this time with pressure oil liquid for V2 mouthfuls
Logical, V1 mouthfuls connect with oil return fuel tank.Therefore, it is height with the control mouth A1 of the second oil inlet V2 the first hydraulic control one-way valves connected
Pressure, the first reversely connection of hydraulic control one-way valve 11；The the second hydraulic control one-way valve control mouth B1 connected with the first oil inlet V1 is low pressure,
It is high pressure with second oil inlet V2 the second hydraulic control one-way valve drain taps B2, under the action of two hydraulic fluid port pressure, the second hydraulic control list
It still keeps reversely ending to valve 13.
High-voltage oil liquid is through the second oil inlet V2, the first check valve 13, the second oil outlet C2 to 2 rod chamber of oil cylinder.Colleague, oil
The fluid of 2 rodless cavity of cylinder cylinder rod chamber pressure oil liquid push under, through the first oil outlet C1, the first hydraulic control one-way valve 11,
First imported oil V1 is to fuel tank.Oil cylinder 2 is smoothly retracted.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, under the premise of the utility model technical principle is not departed from, several improvement and deformation can also be made, these change
The scope of protection of the utility model is also should be regarded as into deformation.
Claims (6)
1. a kind of regeneration hydraulic lock, which is characterized in that include the first oil inlet（V1）, the second oil inlet（V2）, it is first fuel-displaced
Mouthful（C1）, the second oil outlet（C2）, the first hydraulic control one-way valve（11）, the first check valve（12）, the second hydraulic control one-way valve（13）With
Second check valve（14）, first hydraulic control one-way valve（11）First oil inlet described in unilaterally connected（V1）It is fuel-displaced to described first
Mouthful（C1）, first hydraulic control one-way valve（11）Control mouth A1 and second oil inlet（V2）Connection, first check valve
（12）Second oil inlet described in unilaterally connected（V2）To second oil outlet（C2）, second check valve（14）With described
Two hydraulic control one-way valves（13）Between tie point for oil circuit node D, second hydraulic control one-way valve（13）Unilaterally connected oil circuit section
Point D is to the second oil outlet C2, second hydraulic control one-way valve（13）Control mouth B1 and first oil inlet（V1）Connection, it is described
Second hydraulic control one-way valve（13）Drain tap B2 and second oil inlet（V2）Connection, second check valve（14）Unilaterally connected
Oil circuit node D is to first oil outlet（C1）.
2. a kind of regeneration hydraulic lock according to claim 1, which is characterized in that including oil cylinder（2）.
A kind of 3. regeneration hydraulic lock according to claim 2, which is characterized in that first oil outlet（C1）, described
Two oil outlets（C2）It is respectively communicated with the oil cylinder（2）Both ends.
A kind of 4. regeneration hydraulic lock according to claim 2, which is characterized in that the oil cylinder（2）Singly to go out rod oil cylinder.
A kind of 5. regeneration hydraulic lock according to claim 2, which is characterized in that first oil outlet（C1）With the oil
Cylinder（2）Rodless cavity connection.
A kind of 6. regeneration hydraulic lock according to claim 2, which is characterized in that second oil outlet（C2）With oil cylinder
（2）Rod chamber connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721313316.1U CN207485761U (en) | 2017-10-12 | 2017-10-12 | A kind of regeneration hydraulic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721313316.1U CN207485761U (en) | 2017-10-12 | 2017-10-12 | A kind of regeneration hydraulic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207485761U true CN207485761U (en) | 2018-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721313316.1U Active CN207485761U (en) | 2017-10-12 | 2017-10-12 | A kind of regeneration hydraulic lock |
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| Country | Link |
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| CN (1) | CN207485761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514396A (en) * | 2017-10-12 | 2017-12-26 | 徐州徐工随车起重机有限公司 | One kind regeneration hydraulic lock |
-
2017
- 2017-10-12 CN CN201721313316.1U patent/CN207485761U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514396A (en) * | 2017-10-12 | 2017-12-26 | 徐州徐工随车起重机有限公司 | One kind regeneration hydraulic lock |
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