CN207701489U - A kind of non-differential type driver's cab turnover oil cylinder and its oil channel structures - Google Patents
A kind of non-differential type driver's cab turnover oil cylinder and its oil channel structures Download PDFInfo
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- CN207701489U CN207701489U CN201721023755.9U CN201721023755U CN207701489U CN 207701489 U CN207701489 U CN 207701489U CN 201721023755 U CN201721023755 U CN 201721023755U CN 207701489 U CN207701489 U CN 207701489U
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- 230000007306 turnover Effects 0.000 title claims description 11
- 239000012530 fluid Substances 0.000 claims abstract description 66
- 238000013016 damping Methods 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 9
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The utility model provides a kind of non-differential type truck cap overturning oil cylinder and its oil channel structures, including：Oil cylinder, oil cylinder cavity of resorption is with orifice valve by oil circuit connection, and the areas oil cylinder Sang Dong move valve with funeral and connect by the dynamic oil pipe of funeral, and the funeral is moved valve and connect with lifting hydraulic fluid port by oil circuit, and cylinder upper cavity oil is connect with hydraulic fluid port component of pulling back by oil pipe of pulling back.The hydro-logic that the utility model moves valve by hydraulic control one-way valve, check valve, orifice valve and funeral combines, realize the free floating of driver's cabin and the self-reducing resisting function of oil cylinder, reduce driver's possibility that either maintenance personal faces a danger, and realize higher lifting efficiency, to reach identical load capacity, the diameter smaller of non-differential type truck cap overturning oil cylinder greatly improves the lightweight and miniaturization of product, enables the enterprise to obtain stronger competitiveness.
Description
Technical field
The utility model belongs to hydraulic transmission field, more particularly to a kind of non-differential type truck cap overturning oil cylinder
And its oil channel structures.
Background technology
In present Chinese market, the heavy truck of mainstream is all made of cab over engine, and the lower disposed of the type driver's cabin has
The components such as engine, when care and maintenance, need to overturn driver's cabin.
Driver's cab turnover is realized by a manual pump and an oil cylinder.Manual pump output hydraulic pressure power, drive cylinder
Lifting and pull back.With the progress of automobile industry, the requirement to driver's cab turnover oil cylinder is also higher and higher, does not require nothing more than overturning
When oil cylinder realizes repair outside the lifting of driver's cabin and the basic functions such as pull back, also start to propose when normally travel driver's cabin can from
By floating, driver's cabin is not fallen after rise freely when overturning, i.e., not from additional Functional Requirements such as drops.
Present truck cap overturning oil cylinder, is primarily present problems with：
1, current truck cap overturning oil cylinder is mostly differential type overturning oil cylinder, and lifting efficiency is not outstanding enough, body
Product is bigger than normal, and quality is laid particular stress on, and for narrow space under driver's cabin, is unfavorable for the placement of each part of under-cab.
Invention content
Goal of the invention：In order to overcome the above deficiency, the purpose of this utility model to be to provide a kind of non-differential type truck driving
Room overturning oil cylinder and its oil channel structures, lifting efficiency higher can greatly improve the lightweight and miniaturization of product, can
It realizes the function of self-reducing resisting and free floating, improves safety coefficient, reduce part strain, promote product competitiveness.
Technical solution：To achieve the goals above, the utility model provides a kind of non-differential type truck cap overturning
Oil cylinder and its oil channel structures, including：Oil cylinder, funeral move valve and hydraulic control one-way valve, and the oil cylinder lower end is connected with the first oil circuit, the first oil
Road in herringbone is divided into two branch roads after being connected from oil cylinder, is connected into funeral respectively and moves valve and hydraulic control one-way valve, valve and liquid are moved in the funeral
Check valve is controlled with lifting hydraulic fluid port by oil circuit connection, the cylinder upper end is connected with hydraulic fluid port of pulling back by oil pipe of pulling back, the liquid
The control oil circuit access of control check valve is pulled back in oil pipe.The free floating effect of switching mechanism is realized, and by using act
The non-differential connection mode of liter and double hydraulic fluid ports of pulling back so that the lifting efficiency of overturning oil cylinder greatly improves, the diameter smaller of oil cylinder,
Greatly improve the lightweight and miniaturization of product.
Non- differential type truck cap overturning oil cylinder described in the utility model and its oil channel structures further include having resistance
The orifice valve of Buddhist nun's effect, the orifice valve are set on the oil circuit that oil cylinder lower end is not yet diverged, and the orifice valve is provided with first
It controls oil circuit, the second control oil circuit and third and controls oil circuit, the first control oil circuit and the first oil circuit are close to one end of oil cylinder
Connection, the second control oil circuit are connect with the first oil pipe close to one end of hydraulic control one-way valve, and the third controls oil circuit connection
Oil pipe is moved in funeral, it is valve-closed state that valve normal condition is moved in the funeral, the first control oil circuit and the second control oil circuit control
Valve processed is opened, and the third control oil passage control valve door is closed.The setting of the orifice valve ensures oil cylinder in the areas Sang Dong certainly
Resistance smaller when by floating, oil cylinder self-locking outside the areas Sang Dong are more timely.
Lose in the utility model and move the region that oil pipe is used to limit self-reducing resisting function, i.e., piston moves oil pipe or more, tool in funeral
There are self-reducing resisting effect, piston to move oil pipe hereinafter, losing self-reducing resisting function in funeral, that is, have the function of free floating.
Funeral described in the utility model is moved and is connected to check valve between oil pipe and third control oil circuit, and the check valve allows
The fluid of oil cylinder enters lifting hydraulic fluid port, is reversely then not turned on.The setting of the check valve avoids fluid when elevating ram from entering oil
Cylinder epicoele and cause pressure that can not establish, it is ensured that the realization of elevating ram in the areas Sang Dong.
Funeral described in the utility model, which is moved, is provided with the 4th control oil circuit, the 5th control oil circuit and the 6th control oil on valve
Road, the 4th control oil circuit connection is in any position in the first oil circuit branch road, and the 5th control oil circuit connection is in lifting oil
On the oil circuit of mouth, the 6th control oil circuit connection moves any position in oil pipe between oil cylinder and check valve, the funeral in funeral
Dynamic valve normal condition is valve-closed state, and the 4th control oil circuit and the 5th control oil passage control valve door are opened, described the
Six control oil passage control valve doors are closed, and the setting of valve is moved in the funeral, realizes self-reducing resisting function jointly with hydraulically-controlled one-way valve.
Oil cylinder described in the utility model includes cylinder upper cavity oil, oil cylinder cavity of resorption, piston rod and piston.
Hydraulic control one-way valve described in the utility model only allows fluid when fluid is not up to specified pressure in oil return pipe
Enter the second branch from lifting hydraulic fluid port, is reversely then not turned on；When fluid reaches specified pressure in oil return pipe, oil pressure can pass through control
Check valve is played on liquefaction road, at this time bidirectional conduction.Ensure normal lifting, pull back, free floating while, it is ensured that self-reducing resisting
The realization of function avoids the safety problem being likely to occur.
Above-mentioned technical proposal can be seen that the utility model and have the advantages that：
1, a kind of non-differential type truck cap overturning oil cylinder and its oil channel structures described in the utility model, passes through
The form of non-differential connection connects oil cylinder so that the lifting efficiency of overturning oil cylinder improves, i.e., to reach identical load capacity, non-
The diameter smaller of differential type truck cap overturning oil cylinder greatly improves the lightweight and miniaturization of product.
2, a kind of non-differential type truck cap overturning oil cylinder and its oil channel structures described in the utility model, passes through
The hydro-logic combination of valve is moved in hydraulic control one-way valve, check valve, orifice valve and funeral, completes the different oil of unicom in varied situations
The purpose on road realizes the free floating of driver's cabin.
3, a kind of non-differential type truck cap overturning oil cylinder and its oil channel structures described in the utility model, uses
Hydraulic control one-way valve, check valve and funeral move valve and carry out hydro-logic combination, complete self-locking to each valve by controlling oil circuit, realize
The self-reducing resisting function of oil cylinder reduces driver's possibility that either maintenance personal faces a danger.
Description of the drawings
Fig. 1 is the structural schematic diagram that the utility model works in the areas Sang Dong；
Fig. 2 is the structural schematic diagram that the utility model works outside the areas Sang Dong；
In figure：Oil cylinder -1, cylinder upper cavity oil -11, piston -12, piston rod -13, oil cylinder cavity of resorption -14, orifice valve -2, the first control
Liquefaction road -21, second controls oil circuit -22, third control oil circuit -23, the dynamic valve -3 of funeral, the 4th control oil circuit -31, the 5th control oil
Road -32, the 6th control oil circuit -33, check valve -4, hydraulic control one-way valve -5, control oil circuit -51, lifting hydraulic fluid port -6, hydraulic fluid port group of pulling back
Oil pipe -8, oil pipe -9 of pulling back, the first oil circuit -10, the first branch-are moved in part -7, one-way damper valve -71, hydraulic fluid port -72 of pulling back, funeral
101, the second branch -102.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate.
Embodiment 1
As shown in Figure 1 a kind of non-differential type truck cap overturning oil cylinder and its oil channel structures, including：Oil cylinder 1, funeral are dynamic
Valve 3 and hydraulic control one-way valve 5,1 lower end of the oil cylinder are connected with the first oil circuit 10, first oil circuit 10 connected from oil cylinder 1 after be in people
Font is divided into the first branch 101 and the second branch 102, and valve 3 is moved in the connection funeral of the first branch 101, and the second branch 102 connects
Hydraulic control one-way valve 5 is connect, moving oil pipe 8 by funeral between the first branch 101 and oil cylinder 1 connects, and valve 3 and hydraulic control list are moved in the funeral
It is connect to valve 5 by oil pipe with lifting hydraulic fluid port 6,1 upper end of the oil cylinder and hydraulic fluid port 7 of pulling back are connected by oil pipe 9 of pulling back, the liquid
The access of control oil circuit 51 of control check valve 5 is pulled back in oil pipe 9.
Oil cylinder 1 described in the present embodiment includes cylinder upper cavity oil 11, piston -12, piston rod -13, oil cylinder cavity of resorption -14.
Funeral described in the present embodiment, which is moved, is provided with the 4th control control control of oil circuit 32 and the 6th of oil circuit the 31, the 5th on valve 3
Liquefaction road 33, the 4th control oil circuit 31 are connected to the first branch 101, and the 5th control oil circuit 32 is connected to lifting hydraulic fluid port
On 6 oil circuit, the 6th control oil circuit 33 is connected to any position between oil cylinder 1 and check valve 4, institute in the dynamic oil pipe 8 of funeral
It is valve-closed state to state funeral and move 3 normal condition of valve, and the 4th control oil circuit 31 and the 5th controls 32 control valve of oil circuit and beats
It opens, the 6th control 33 control valve of oil circuit is closed.
Lose to move valve 3 and lose described in the present embodiment and move the region that oil pipe 8 is used to limit self-reducing resisting function, is i.e. piston 12 is losing
There is dynamic 8 or more oil pipe self-reducing resisting effect, piston 12 to move oil pipe 8 hereinafter, losing self-reducing resisting function in funeral, that is, have and freely float
Dynamic function.
Hydraulic control one-way valve 5 described in the present embodiment only allows fluid when fluid is not up to specified pressure in oil return pipe 9
Enter the second branch 102 from lifting hydraulic fluid port 6, is reversely then not turned on；When fluid reaches specified pressure in oil return pipe 9, oil pressure meeting
By controlling oil circuit（51）Check valve is played, at this time bidirectional conduction.
When piston rod 13 described in the present embodiment is needed to float by external force, the fluid of 12 compression cylinder epicoele 11 of piston
Volume, oil liquid pressure increase, and fluid opens hydraulic control one-way valve 5 by oil pipe 9 of pulling back, control oil circuit 51.Meanwhile cylinder upper cavity oil 12
Fluid through lose move oil pipe 8, check valve 4, hydraulic control one-way valve 5 flow out to lifting hydraulic fluid port 6.So far, the fluid quilt of cylinder upper cavity oil 12
Discharge, piston rod 13 can freely float.
Embodiment 2
As shown in Figure 1 a kind of non-differential type truck cap overturning oil cylinder and its oil channel structures, including：Oil cylinder 1, funeral are dynamic
Valve 3 and hydraulic control one-way valve 5,1 lower end of the oil cylinder are connected with the first oil circuit 10, first oil circuit 10 connected from oil cylinder 1 after be in people
Font is divided into the first branch 101 and the second branch 102, and valve 3 is moved in the connection funeral of the first branch 101, and the second branch 102 connects
Hydraulic control one-way valve 5 is connect, moving oil pipe 8 by funeral between the first branch 101 and oil cylinder 1 connects, and valve 3 and hydraulic control list are moved in the funeral
It is connect to valve 5 by oil pipe with lifting hydraulic fluid port 6,1 upper end of the oil cylinder and hydraulic fluid port 7 of pulling back are connected by oil pipe 9 of pulling back, the liquid
The access of control oil circuit 51 of control check valve 5 is pulled back in oil pipe 9.
A kind of non-differential type truck cap overturning oil cylinder described in the present embodiment and its oil channel structures, further include having
The orifice valve 2 of damping, the orifice valve 2 are set in 10 working connection of the first oil circuit, and the orifice valve 2 is provided with the first control
Liquefaction road 21, second controls oil circuit 22 and third controls oil circuit 23, and the first control oil circuit 21 and the first oil circuit 10 are close to oil
One end of cylinder 1 connects, and the second control oil circuit 22 is connected into the second branch 102, and it is dynamic that the third control oil circuit 23 is connected to funeral
Oil pipe 8,2 normal condition of the orifice valve are valve-closed state, and the first control oil circuit 21 and second controls oil circuit 22 and controls
Valve processed is opened, and third control 23 control valve of oil circuit is closed, and the orifice valve 2 is provided with the spring of damping.
Oil cylinder 1 described in the present embodiment includes cylinder upper cavity oil 11, oil cylinder cavity of resorption 14, piston rod 13 and piston 12.
Hydraulic control one-way valve 5 described in the present embodiment only allows fluid when fluid is not up to specified pressure in oil return pipe 9
Enter the second branch 102 from lifting hydraulic fluid port 6, is reversely then not turned on；When fluid reaches specified pressure in oil return pipe 9, oil pressure meeting
By controlling oil circuit（51）Check valve is played, at this time bidirectional conduction.
When piston rod 13 described in the present embodiment is needed by external force, the fluid of 12 compression cylinder cavity of resorption 14 of piston
Volume, oil liquid pressure increase, and fluid is opened orifice valve 2 with dynamic valve 3 is lost by controlling oil circuit, and then fluid flows out to lifting oil
Mouth 6.So far, the fluid of oil cylinder cavity of resorption 12 is discharged, and piston rod 13 can be with free subsidence.
Embodiment 3
As shown in Figure 1 a kind of non-differential type truck cap overturning oil cylinder and its oil channel structures, including：Oil cylinder 1, funeral are dynamic
Valve 3 and hydraulic control one-way valve 5,1 lower end of the oil cylinder are connected with the first oil circuit 10, first oil circuit 10 connected from oil cylinder 1 after be in people
Font is divided into the first branch 101 and the second branch 102, and valve 3 is moved in the connection funeral of the first branch 101, and the second branch 102 connects
Hydraulic control one-way valve 5 is connect, moving oil pipe 8 by funeral between the first branch 101 and oil cylinder 1 connects, and valve 3 and hydraulic control list are moved in the funeral
It is connect to valve 5 by oil pipe with lifting hydraulic fluid port 6,1 upper end of the oil cylinder and hydraulic fluid port 7 of pulling back are connected by oil pipe 9 of pulling back, the liquid
The access of control oil circuit 51 of control check valve 5 is pulled back in oil pipe 9.
A kind of non-differential type truck cap overturning oil cylinder described in the present embodiment and its oil channel structures, further include having
The orifice valve 2 of damping, the orifice valve 2 are set in 10 working connection of the first oil circuit, and the orifice valve 2 is provided with the first control
Liquefaction road 21, second controls oil circuit 22 and third controls oil circuit 23, and the first control oil circuit 21 and the first oil circuit 10 are close to oil
One end of cylinder 1 connects, and the second control oil circuit 22 is connected into the second branch 102, and it is dynamic that the third control oil circuit 23 is connected to funeral
Oil pipe 8,2 normal condition of the orifice valve are valve-closed state, and the first control oil circuit 21 and second controls oil circuit 22 and controls
Valve processed is opened, and third control 23 control valve of oil circuit is closed, and the orifice valve 2 is provided with the spring of damping.
Oil cylinder 1 described in the present embodiment includes cylinder upper cavity oil 11, oil cylinder cavity of resorption 14, piston rod 13 and piston 12.
Hydraulic control one-way valve 5 described in the present embodiment only allows fluid when fluid is not up to specified pressure in oil return pipe 9
Enter the second branch 102 from lifting hydraulic fluid port 6, is reversely then not turned on；When fluid reaches specified pressure in oil return pipe 9, oil pressure meeting
Check valve is played by controlling oil circuit 51, at this time bidirectional conduction.
Lifting hydraulic fluid port 6 described in the present embodiment exports fluid, opens hydraulic control one-way valve 5, then open by controlling oil circuit
Orifice valve 2, last fluid enter oil cylinder cavity of resorption 14, and piston 12 is pushed to be moved to cylinder upper cavity oil 11, so push piston rod 13 to
It gets outside.
Embodiment 4
As shown in Figure 2 a kind of non-differential type truck cap overturning oil cylinder and its oil channel structures, including：Oil cylinder 1, funeral are dynamic
Valve 3 and hydraulic control one-way valve 5,1 lower end of the oil cylinder are connected with the first oil circuit 10, first oil circuit 10 connected from oil cylinder 1 after be in people
Font is divided into the first branch 101 and the second branch 102, and valve 3 is moved in the connection funeral of the first branch 101, and the second branch 102 connects
Hydraulic control one-way valve 5 is connect, moving oil pipe 8 by funeral between the first branch 101 and oil cylinder 1 connects, and valve 3 and hydraulic control list are moved in the funeral
It is connect to valve 5 by oil pipe with lifting hydraulic fluid port 6,1 upper end of the oil cylinder and hydraulic fluid port 7 of pulling back are connected by oil pipe 9 of pulling back, the liquid
The access of control oil circuit 51 of control check valve 5 is pulled back in oil pipe 9.
A kind of non-differential type truck cap overturning oil cylinder described in the present embodiment and its oil channel structures, further include having
The orifice valve 2 of damping, the orifice valve 2 are set in 10 working connection of the first oil circuit, and the orifice valve 2 is provided with the first control
Liquefaction road 21, second controls oil circuit 22 and third controls oil circuit 23, and the first control oil circuit 21 and the first oil circuit 10 are close to oil
One end of cylinder 1 connects, and the second control oil circuit 22 is connected into the second branch 102, and it is dynamic that the third control oil circuit 23 is connected to funeral
Oil pipe 8,2 normal condition of the orifice valve are valve-closed state, and the first control oil circuit 21 and second controls oil circuit 22 and controls
Valve processed is opened, and third control 23 control valve of oil circuit is closed, and the orifice valve 2 is provided with the spring of damping.
Oil cylinder 1 described in the present embodiment includes cylinder upper cavity oil 11, oil cylinder cavity of resorption 14, piston rod 13 and piston 12.
Funeral described in the present embodiment, which is moved, is provided with the 4th control control control of oil circuit 32 and the 6th of oil circuit the 31, the 5th on valve 3
Liquefaction road 33, the 4th control oil circuit 31 are connected to the first branch 101, and the 5th control oil circuit 32 is connected to lifting hydraulic fluid port
On 6 oil circuit, the 6th control oil circuit 33 is connected to any position between oil cylinder 1 and check valve 4, institute in the dynamic oil pipe 8 of funeral
It is valve-closed state to state funeral and move 3 normal condition of valve, and the 4th control oil circuit 31 and the 5th controls 32 control valve of oil circuit and beats
It opens, the 6th control 33 control valve of oil circuit is closed.
Lose to move valve 3 and lose described in the present embodiment and move the region that oil pipe 8 is used to limit self-reducing resisting function, is i.e. piston 12 is losing
There is dynamic 8 or more oil pipe self-reducing resisting effect, piston 12 to move oil pipe 8 hereinafter, losing self-reducing resisting function in funeral, that is, have and freely float
Dynamic function.
Hydraulic control one-way valve 5 described in the present embodiment only allows fluid when fluid is not up to specified pressure in oil return pipe 9
Enter the second branch 102 from lifting hydraulic fluid port 6, is reversely then not turned on；When fluid reaches specified pressure in oil return pipe 9, oil pressure meeting
Check valve is played by controlling oil circuit 51, at this time bidirectional conduction.
When piston rod 13 described in the present embodiment is by compression external force, the fluid body of 12 compression cylinder cavity of resorption 14 of piston
Product, oil liquid pressure increase.Fluid is only possible to move valve 3 and hydraulic control one-way valve 5 from funeral that this is discharged in channel from two.And fluid is dynamic by losing
Can valve 3 be moved in funeral when oil pipe 8 to close；Fluid moves oil pipe 8, check valve 4 by funeral and can close hydraulic control one-way valve 5.Therefore under oil cylinder
The fluid of chamber 12 can not move any one channel in valve 3 and hydraulic control one-way valve 5 from funeral and be discharged, and piston rod 13 will not occur certainly
Drop.
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, without departing from the principle of this utility model, several improvement can also be made, these improvement also should be regarded as
The scope of protection of the utility model.
Claims (7)
1. a kind of non-differential type driver's cab turnover oil cylinder and its oil channel structures, it is characterised in that：Including：Oil cylinder（1）, funeral move valve
（3）And hydraulic control one-way valve（5）, the oil cylinder（1）Lower end is connected with the first oil circuit（10）, first oil circuit（10）From oil cylinder（1）
It is divided into the first branch in herringbone after connecting（101）And the second branch（102）, the first branch（101）Valve is moved in connection funeral
（3）, the second branch（102）Connect hydraulic control one-way valve（5）, the first branch（101）With oil cylinder（1）Between it is dynamic by losing
Oil pipe（8）Valve is moved in connection, the funeral（3）And hydraulic control one-way valve（5）With lifting hydraulic fluid port（6）By oil circuit connection, the oil cylinder（1）
Upper end and hydraulic fluid port of pulling back（7）Pass through oil pipe of pulling back（9）Connection, the hydraulic control one-way valve（5）Control oil circuit（51）Access is pulled back
Oil pipe（9）In.
2. non-differential type driver's cab turnover oil cylinder according to claim 1 and its oil channel structures, it is characterised in that：Further include
Orifice valve with damping（2）, the orifice valve（2）It is set to the first oil circuit（10）In working connection, the orifice valve（2）
It is provided with the first control oil circuit（21）, second control oil circuit（22）Oil circuit is controlled with third（23）, the first control oil circuit
（21）With the first oil circuit（10）Close to oil cylinder（1）One end connection, it is described second control oil circuit（22）It is connected into the second branch
（102）, the third control oil circuit（23）It is connected to funeral and moves oil pipe（8）, the orifice valve（2）Normal condition is that valve closes shape
State, the first control oil circuit（21）With the second control oil circuit（22）Control valve is opened, and the third controls oil circuit（23）Control
Valve processed is closed, the orifice valve（2）It is provided with the spring of damping.
3. non-differential type driver's cab turnover oil cylinder according to claim 2 and its oil channel structures, it is characterised in that：Described
Oil cylinder（1）Including cylinder upper cavity oil（11）, piston（12）, piston rod（13）With oil cylinder cavity of resorption（14）.
4. non-differential type driver's cab turnover oil cylinder according to claim 1 and its oil channel structures, it is characterised in that：Described
Valve is moved in funeral（3）Oil circuit is controlled with third（23）Between be connected to check valve（4）, the check valve（4）Allow oil cylinder（1）Fluid into
Enter to lift hydraulic fluid port（6）, reversely then it is not turned on.
5. non-differential type driver's cab turnover oil cylinder according to claim 4 and its oil channel structures, it is characterised in that：Described
Valve is moved in funeral（3）On be provided with the 4th control oil circuit（31）, the 5th control oil circuit（32）With the 6th control oil circuit（33）, the described 4th
Control oil circuit（31）It is connected to the first branch（101）, the 5th control oil circuit（32）It is connected to lifting hydraulic fluid port（6）Oil circuit
On, the 6th control oil circuit（33）It is connected to funeral and moves oil pipe（8）, and it is located at oil cylinder（1）With check valve（4）Between arbitrary position
It sets, valve is moved in the funeral（3）Normal condition is valve-closed state, the 4th control oil circuit（31）With the 5th control oil circuit（32）
Control valve is opened, the 6th control oil circuit（33）Control valve is closed.
6. non-differential type driver's cab turnover oil cylinder according to claim 1 and its oil channel structures, it is characterised in that：The funeral
Dynamic valve（3）Oil pipe is moved with funeral（8）Region for limiting self-reducing resisting function, i.e. piston（12）Oil pipe is moved in funeral（8）More than, have
Self-reducing resisting effect, piston（12）Oil pipe is moved in funeral（8）Hereinafter, losing self-reducing resisting function, that is, has the function of free floating.
7. non-differential type driver's cab turnover oil cylinder according to claim 1 and its oil channel structures, it is characterised in that：Described
Hydraulic control one-way valve（5）In oil return pipe（9）Middle fluid not up to controls oil circuit（51）Only allow fluid from lifting oil when limiting pressure
Mouthful（6）Into the second branch（102）, reversely then it is not turned on；In oil return pipe（9）Middle fluid reaches control oil circuit（51）Limiting pressure
When, oil pressure can pass through control oil circuit（51）Check valve is opened, at this time bidirectional conduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721023755.9U CN207701489U (en) | 2017-08-16 | 2017-08-16 | A kind of non-differential type driver's cab turnover oil cylinder and its oil channel structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721023755.9U CN207701489U (en) | 2017-08-16 | 2017-08-16 | A kind of non-differential type driver's cab turnover oil cylinder and its oil channel structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207701489U true CN207701489U (en) | 2018-08-07 |
Family
ID=63020771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721023755.9U Active CN207701489U (en) | 2017-08-16 | 2017-08-16 | A kind of non-differential type driver's cab turnover oil cylinder and its oil channel structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207701489U (en) |
-
2017
- 2017-08-16 CN CN201721023755.9U patent/CN207701489U/en active Active
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Effective date of registration: 20191024 Address after: 215400 East Building, building 1, No. 6, Nanjing East Road, Taicang Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: Taicang baowoparker Machinery Technology Co., Ltd Address before: 215400 No. 6 East Nanjing Road, Suzhou, Jiangsu, Taicang Patentee before: PRACTICAL POWER (CHINA) INDUSTRIAL CO., LTD. |
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