CN207598603U - It is a kind of to be used to that harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing - Google Patents
It is a kind of to be used to that harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing Download PDFInfo
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- CN207598603U CN207598603U CN201720613796.7U CN201720613796U CN207598603U CN 207598603 U CN207598603 U CN 207598603U CN 201720613796 U CN201720613796 U CN 201720613796U CN 207598603 U CN207598603 U CN 207598603U
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- mouthfuls
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Abstract
The utility model is related to the technical field of hydraulic of harvester, it is more particularly to a kind of to be used to that harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing, including oil sources, multi-functional guiding valve, control the ceding of Taiwan oil cylinder of taiwan cut off and landing, control the left steering oil cylinder of harvester left steering, control the right turn oil cylinder of harvester right turn and oil return fuel tank, multi-functional guiding valve includes ceding of Taiwan control valve, steering control valve and the hydraulic control one-way valve with the ceding of Taiwan oil cylinder of taiwan cut off and landing is controlled to connect, the a kind of of the utility model can realize that harvester turns to and taiwan cut off and landing is synchronized with the movement for harvester to be controlled to turn to the synchronous valve of taiwan cut off and landing, greatly save the time, improve the working efficiency of harvester.
Description
Technical field
The utility model is related to the technical field of hydraulic of harvester, more particularly to a kind of to be used to that harvester to be controlled to turn to
With the synchronous valve of taiwan cut off and landing.
Background technology
Crawler-type harvester taiwan cut off and landing and steering major part use hydraulic control, taiwan cut off and landing valve and switching valve string at present
It is linked togather, can not realize steering when taiwan cut off and landing, when steering can not realize taiwan cut off and landing.In such cases when user exists
It needs liter ceding of Taiwan and turns to simultaneously just realize during the end turning of field, reduce speed.
Utility model content
In order to solve the problems, such as that harvester of the existing technology can not realize steering and taiwan cut off and landing simultaneously, this practicality is new
Type provides a kind of synchronous valve for being used to control harvester steering and taiwan cut off and landing that can realize steering and taiwan cut off and landing simultaneously.
Technical solution is used by the utility model solves its technical problem：
It is a kind of to be used to that harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing, including oil sources, multi-functional guiding valve, the control ceding of Taiwan
The ceding of Taiwan oil cylinder of lifting, controls the right turn oil cylinder of harvester right turn and returns the left steering oil cylinder of control harvester left steering
Fuel tank, the multi-functional guiding valve include ceding of Taiwan control valve, steering control valve and the ceding of Taiwan oil cylinder string with controlling taiwan cut off and landing
The hydraulic control one-way valve of connection；
The ceding of Taiwan control valve is 3 position-5 way valve, and ceding of Taiwan control valve includes A mouthfuls, B mouthfuls, P mouthfuls, T mouthfuls and T1 mouthfuls,
A mouthfuls connect with 25 oil inlet of hydraulic control one-way valve, and B mouthfuls connect with the control mouth of hydraulic control one-way valve, and P mouthfuls connect with oil sources 1, T mouthfuls with
Oil return fuel tank connects, and when ceding of Taiwan control valve is located at middle position, A mouthfuls, B mouthfuls and T mouthfuls are closing mouth, and P mouthfuls communicate with T1 mouthfuls, ceding of Taiwan control
When valve processed is located at left position, A mouthfuls communicate with P mouthfuls, and B mouthfuls communicate with T1 mouthfuls, and T1 mouthfuls are closing mouth, when ceding of Taiwan control valve is located at right position, A
Mouth is communicated with T1 mouthfuls, and B mouthfuls communicate with P mouthfuls, and T1 mouthfuls are closing mouth；
The steering control valve be five six-way transfer valves, steering control valve include A ' mouths, B ' mouths, B1 mouthfuls, P1 mouthfuls, P '
Mouthful and T ' mouths, A ' mouths connect with the rodless cavity of left steering oil cylinder, B ' mouths are connect with the rodless cavity of right turn oil cylinder, B1 mouthfuls and meanwhile with
Left steering oil cylinder is connected with the rod chamber of right turn oil cylinder, and the rod chamber of left steering oil cylinder and right turn oil cylinder communicates, P1 mouthfuls
It is connect with oil sources, P ' mouths are connect with 1 mouthful of the T ' of ceding of Taiwan control valve, and T ' mouths are connect with oil return fuel tank, and steering control valve is located at middle position
When, A ' mouths, B ' mouths, B1 mouthfuls, P ' mouths and T ' mouths communicate, and P1 mouthfuls are closing mouth, when steering control valve is located at the first from left position, A ' mouths, P1
Mouthful and P ' mouths communicate, B ' mouths, B1 mouthfuls and T ' mouths communicate, and when steering control valve is located at the second from left position, A ' mouths, P1 mouthfuls and P ' mouths communicate,
B ' mouths and T ' mouths communicate, and B1 mouthfuls are closing mouth, and when steering control valve is located at one right, B ' mouths, P1 mouthfuls and P ' mouths communicate, A ' mouths,
B1 mouthfuls and T ' mouths communicate, and when steering control valve is located at two right, B ' mouths, P1 mouthfuls and P ' mouths communicate, and A ' mouths and T ' mouths communicate, B1 mouthfuls
To close mouth.
Further, when steering control valve is located at the first from left position, there is throttling channel between B1 mouthfuls and T ' mouths；Steering control valve is located at
When one right, there is throttling channel between B1 and T '.
Further, multi-functional guiding valve further includes the safety valve and overflow valve near oil sources, the safety valve
Oil inlet is connect with oil sources, and the oil outlet of safety valve is connect with oil return fuel tank, the overflow valve oil inlet and P mouthfuls and T1 mouths
Between oil circuit connection, the oil outlet of overflow valve connect with fuel tank.
Further, the Opening pressure of the safety valve is 13.5MPa, the Opening pressure of the overflow valve for 7~
8MPa。
Further, the multi-functional guiding valve is by safety valve, overflow valve, ceding of Taiwan control valve, steering control valve and hydraulic control
The compound hand-operated valve that check valve becomes one.
Advantageous effect：The a kind of of the utility model can realize receipts for harvester to be controlled to turn to the synchronous valve of taiwan cut off and landing
Cutting mill turns to and taiwan cut off and landing is synchronized with the movement, and greatlys save the time, improves the working efficiency of harvester.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is to be used to that harvester be controlled to turn to the synchronous valve schematic diagram with taiwan cut off and landing before improving；
Fig. 2 is that the utility model is used to that harvester to be controlled to turn to the synchronous valve schematic diagram with taiwan cut off and landing.
Wherein, 1, oil sources, 2, multi-functional guiding valve, 23, ceding of Taiwan control valve, 231, ceding of Taiwan valve, 24, steering control valve, 241,
Switching valve, 25, hydraulic control one-way valve, 3, ceding of Taiwan oil cylinder, 4, left steering oil cylinder, 5, right turn oil cylinder, 6, oil return fuel tank.
Specific embodiment
As shown in Figure 1, it is the synchronous valve for being used to control harvester steering and taiwan cut off and landing before improving.Ceding of Taiwan valve 231 is
Three position four-way directional control valve, ceding of Taiwan valve 231 include A mouthful, B mouthfuls, P mouthfuls and T mouthfuls, switching valve 241 be 3 position-5 way valve, switching valve
241 include A ' mouths, B ' mouths, B1 mouthfuls, P ' mouths and T ' mouths.When ceding of Taiwan valve 231 is in middle position, A and B are closing mouths, and P and T-phase are led to,
The high pressure oil of oil sources 1 reaches the P mouths of ceding of Taiwan valve 231, by T mouthfuls, reaches the P ' mouths of switching valve, turns to circuit at this time and obtains high pressure
Fluid can work；When ceding of Taiwan valve 231 is in left position, A and P are communicated, and B and T-phase are led to, at this time high-voltage oil liquid only by P, A and
Hydraulic control one-way valve 25 reaches the rodless cavity of ceding of Taiwan oil cylinder 3, and the P ' mouths of switching valve 241 do not obtain high-voltage oil liquid, turn to circuit without
Method works normally；When ceding of Taiwan valve 231 is in right position, A and T-phase are led to, and B and P are communicated, and high-voltage oil liquid is only reached by P, B at this time
25 control mouth of hydraulic control one-way valve, the P ' mouths of switching valve 241 have obtained the oil return of ceding of Taiwan oil cylinder rodless cavity, but pressure is smaller, oil
Liquid is inadequate, turns to circuit and can not work normally；In conclusion when only ceding of Taiwan valve 231 is in middle position, the steering in circuit is turned to
Valve 241 can just obtain the high pressure oil of oil sources 1, could work normally, and can cause harvester in stays in taiwan cut off and landing in this way,
Influence operating efficiency.
As shown in Fig. 2, the utility model is a kind of for harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing, including oil
Source, multi-functional guiding valve 2, the ceding of Taiwan oil cylinder 3 for controlling taiwan cut off and landing, the left steering oil cylinder 4 for controlling harvester left steering, control harvesting
The right turn oil cylinder 5 of machine right turn and oil return fuel tank 61, multi-functional guiding valve 2 include ceding of Taiwan control valve 23,24 He of steering control valve
The hydraulic control one-way valve 25 connected with the ceding of Taiwan oil cylinder 3 for controlling taiwan cut off and landing；
Ceding of Taiwan control valve 23 is 3 position-5 way valve, and ceding of Taiwan control valve 23 includes A mouthfuls, B mouthfuls, P mouthfuls, T mouthfuls and T1 mouthfuls, A
Mouth is connect with 2525 oil inlet of hydraulic control one-way valve, and B mouthfuls connect with the control mouth of hydraulic control one-way valve 25, and P mouthfuls connect with oil sources 1, T mouthfuls
It being connect with oil return fuel tank 61, when ceding of Taiwan control valve 23 is located at middle position, A mouthfuls, B mouthfuls and T mouthfuls are closing mouth, and P mouthfuls communicate with T1 mouthfuls,
When ceding of Taiwan control valve 23 is located at left position, A mouthfuls communicate with P mouthfuls, and B mouthfuls communicate with T1 mouthfuls, and T1 mouthfuls is are closed mouth, ceding of Taiwan control valve 23
When right position, A mouthfuls communicate with T1 mouthfuls, and B mouthfuls communicate with P mouthfuls, and T1 mouthfuls are closing mouth；
Steering control valve 24 be five six-way transfer valves, steering control valve 24 include A ' mouths, B ' mouths, B1 mouthfuls, P1 mouthfuls, P ' mouths
And T ' mouths, A ' mouths are connect with the rodless cavity of left steering oil cylinder 4, B ' mouths are connect with the rodless cavity of right turn oil cylinder 5, B1 mouthfuls simultaneously with
Left steering oil cylinder 4 is connected with the rod chamber of right turn oil cylinder 5, and the rod chamber of left steering oil cylinder 4 and right turn oil cylinder 5 communicates,
P1 mouthfuls connect with oil sources, and P ' mouths are connect with 1 mouthful of the T ' of ceding of Taiwan control valve 23, and T ' mouths are connect with oil return fuel tank 61, steering control valve
24 when being located at middle position, and A ' mouths, B ' mouths, B1 mouthful, P ' mouths and T ' mouths communicate, and P1 mouthful are to close mouth, and steering control valve 24 is located at the first from left
During position, A ' mouths, P1 mouthfuls and P ' mouths communicate, and B ' mouths, B1 mouthfuls and T ' mouths communicate, when steering control valve 24 is located at the second from left position, A ' mouths, P1
Mouthful and P ' mouths communicate, B ' mouths and T ' mouths communicate, B1 mouthful for closing mouth, steering control valve 24 be located at the right side one when, B ' mouths, P1 mouthfuls and
P ' mouths communicate, and A ' mouths, B1 mouthfuls and T ' mouths communicate, and when steering control valve 24 is located at two right, B ' mouths, P1 mouthfuls and P ' mouths communicate, A '
Mouth and T ' mouths communicate, and B1 mouthfuls are closing mouth.
When steering control valve 24 is located at the first from left position, there is throttling channel between B1 mouthfuls and T ' mouths；Steering control valve 24 is located at the right side one
During position, there is throttling channel between B1 and T '.
Multi-functional guiding valve 2 further includes the safety valve and overflow valve near oil sources, and oil inlet and the oil sources of safety valve connect
It connects, the oil outlet of safety valve is connect with oil return fuel tank 61, the oil circuit connection between overflow valve oil inlet and P mouthfuls and T1 mouthfuls, overflow
The oil outlet of valve is connect with fuel tank 1.
The Opening pressure of safety valve is 13.5MPa, and the Opening pressure of overflow valve is 7~8MPa.
Multi-functional guiding valve 2 collects safety valve, overflow valve, ceding of Taiwan control valve 23, steering control valve 24 with hydraulic control one-way valve 25
The compound hand-operated valve being integrally formed.
In the present embodiment, the ceding of Taiwan oil cylinder 3 of taiwan cut off and landing is controlled to include two ceding of Taiwan oil cylinders in parallel.
The a kind of of the utility model is used to that harvester to be controlled to turn to the synchronous valve concrete operating principle introduction with taiwan cut off and landing
It is as follows：
1 high-voltage oil liquid of oil sources can reach the P mouths of ceding of Taiwan control valve 23 and the P1 mouths of steering control valve 24 simultaneously, and the ceding of Taiwan is returned
Road and steering circuit are independent of each other, and work normally.Safety valve 21 is an overflow valve in fact, for ensureing the pressure of hydraulic system
13.5MPa is not exceeded, overflow valve 22, which is for ensuring that, turns to the operating pressure in circuit not higher than 7-8MPa, two overflow valves
Pressure can be set.
When ceding of Taiwan control valve 23 is in middle position, P and T1 are communicated, and high pressure oil reaches steering control valve 24 by P and T1
P ' mouths, the high pressure oil of fluid 1, which fully enters, at this time turns to circuit, and elevating loop, which does not interfere with, turns to circuit.When ceding of Taiwan control valve
24 be in left position when, T1 for closing mouth, do not have fluid influence turn to circuit.High-voltage oil liquid passes through P mouthfuls, A mouthfuls and fluid-control one-way
Valve 25 enters the rodless cavity of ceding of Taiwan oil cylinder 3, and ceding of Taiwan oil cylinder 3 is two single-acting cylinders in parallel, and ceding of Taiwan cylinder piston rod is stretched at this time
Go out, the ceding of Taiwan is risen.When ceding of Taiwan control valve 23 is in right position, T1 is closing mouth, and not having fluid influences to turn to circuit.High pressure oil
Liquid is opened by P mouthfuls and the control mouth of B mouthfuls of arrival hydraulic control one-way valves 25, at this time hydraulic control one-way valve 25, and ceding of Taiwan oil cylinder 3 is due to the ceding of Taiwan
Dead weight or other external force, cause piston rod to be retracted, and rodless cavity fluid is into 25 oil return of hydraulic control one-way valve for crossing unlatching, through A mouthfuls and T mouthfuls
Oil return box.In summary the function narration of three positions of ceding of Taiwan control valve, no matter ceding of Taiwan switching valve is in any position, not
It influences whether to turn to circuit.
When steering control valve 24 is in middle position, communicated with oil return fuel tank 6 due to A mouthfuls, B mouthfuls, B1 mouthfuls, P mouthfuls and T mouthfuls,
High-voltage oil liquid passes through the direct oil return boxes of P ' and T ', and steering cylinder will not act.
When steering control valve 24 is in the first from left position, A ', P1 and P ' are communicated, and fluid reaches the rodless cavity of left steering oil cylinder 4,
4 piston rod of left steering oil cylinder stretches out at this time.B1 arrival was passed through in the slow oil return of the rod chamber of left steering oil cylinder and right turn oil cylinder
T ' mouths, then to oil return fuel tank 6.The rodless cavity of right turn oil cylinder 5 passes through B ' and T ' it is directly connect with fuel tank, pressure zero, still,
Due to the presence of the throttling channel between B1 and T, 5 rod chamber pressure of right turn oil cylinder can be caused to turn right slightly larger than rodless cavity pressure
It can slightly retract to the piston rod of oil cylinder 5.The piston rod outreach of left steering oil cylinder 4 is more than right turn cylinder piston rod at this time
Retraction distance, the two collective effect, causes harvester to turn to the left.
When steering control valve is in the second from left position, A ', P1 and P ' are communicated, and fluid reaches left steering oil cylinder rodless cavity, at this time
4 piston rod of left steering oil cylinder stretches out.Since the B1 that the rod chamber of left steering oil cylinder 4 and right turn oil cylinder 4 is connected is closing mouth,
It may result in pressure to be continuously increased, the piston rod of driving right turn oil cylinder 5 is retracted.The piston rod of left steering oil cylinder 4 stretches out at this time
Distance is equal to the retraction distance of 5 piston rod of right turn oil cylinder, and the two collective effect leads to harvester pivot stud to the left.
When steering control valve is in it is one right when, B ', P1 and P ' are communicated, and fluid reaches the rodless cavity of right turn oil cylinder 5, this
When right turn oil cylinder 5 piston rod stretch out.The slow oil return of the rod chamber of left steering oil cylinder 4 and right turn oil cylinder 5, reaches by B1
T ' mouths, then to oil return fuel tank 6.The rodless cavity of left steering oil cylinder 4 passes through B ' and T ' it is directly connect with oil return fuel tank 6, pressure zero,
But due to B1 and T ' between throttling channel presence, can cause 4 rod chamber pressure of left steering oil cylinder be slightly larger than rodless cavity pressure
Power, the piston rod of left steering oil cylinder 4 can slightly retract.The piston rod outreach of right turn oil cylinder 5 is more than left steering oil cylinder 4 at this time
Piston rod retraction distance, the two collective effect causes harvester to turn to the right.
When steering control valve is in it is two right when, B ', P1 and P ' are communicated, and fluid reaches the rodless cavity of right turn oil cylinder 5, this
When right turn oil cylinder 5 piston rod stretch out.Since the B1 that the rod chamber of left steering oil cylinder 4 and right turn oil cylinder 5 is connected is envelope
It remains silent, may result in pressure and be continuously increased, the piston rod of driving left steering oil cylinder 4 is retracted.The piston rod of right turn oil cylinder 5 at this time
Outreach is equal to the retraction distance of the piston rod of left steering oil cylinder 4, and the two collective effect leads to harvester pirouette to the right
To.
It should be appreciated that specific embodiment described above is only used for explaining the utility model, it is not used to limit this reality
With novel.By the obvious changes or variations that the spirit of the utility model is extended out still in the protection of the utility model
Among range.
Claims (5)
1. a kind of be used to that harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing, it is characterised in that：Including oil sources (1), multi-functional
Guiding valve (2), the ceding of Taiwan oil cylinder (3) for controlling taiwan cut off and landing, the left steering oil cylinder (4) for controlling harvester left steering, control harvester
The right turn oil cylinder (5) of right turn and oil return fuel tank (6), the multi-functional guiding valve (2) include ceding of Taiwan control valve (23), turn to
Control valve (24) and the hydraulic control one-way valve (25) with the ceding of Taiwan oil cylinder (3) of taiwan cut off and landing is controlled to connect；
The ceding of Taiwan control valve (23) be 3 position-5 way valve, ceding of Taiwan control valve (23) including A mouthfuls, B mouthfuls, P mouthfuls, T mouthfuls and
T1 mouthfuls, A mouthfuls connect with hydraulic control one-way valve (25) oil inlet, and B mouthfuls connect with the control mouth of hydraulic control one-way valve (25), P mouthfuls and oil sources 1
Connection, T mouthfuls connect with oil return fuel tank (6), and when ceding of Taiwan control valve (23) is positioned at middle position, A mouthfuls, B mouthfuls and T mouthfuls are closing mouth, P mouthfuls
It being communicated with T1 mouthfuls, when ceding of Taiwan control valve (23) is positioned at left position, A mouthfuls communicate with P mouthfuls, and B mouthfuls communicate with T1 mouthfuls, and T1 mouthfuls are closing mouth,
When ceding of Taiwan control valve (23) is positioned at right position, A mouthfuls communicate with T1 mouthfuls, and B mouthfuls communicate with P mouthfuls, and T1 mouthfuls are closing mouth；
The steering control valve (24) be five six-way transfer valves, steering control valve (24) including A ' mouths, B ' mouths, B1 mouthfuls, P1
Mouth, P ' mouths and T ' mouths, A ' mouths are connect with the rodless cavity of left steering oil cylinder (4), and B ' mouths and the rodless cavity of right turn oil cylinder (5) connect
It connects, B1 mouthfuls connect, and left steering oil cylinder (4) and right turn simultaneously with the rod chamber of left steering oil cylinder (4) and right turn oil cylinder (5)
The rod chamber of oil cylinder (5) communicates, and P1 mouthfuls connect with oil sources, and P ' mouths are connect with 1 mouthful of the T ' of ceding of Taiwan control valve (23), T ' mouths and oil return
Fuel tank (6) connects, and when steering control valve (24) is positioned at middle position, A ' mouths, B ' mouths, B1 mouthfuls, P ' mouths and T ' mouths communicate, and P1 mouthfuls are closing
Mouthful, when steering control valve (24) is positioned at the first from left position, A ' mouths, P1 mouthful and P ' mouths communicate, and B ' mouths, B1 mouthful and T ' mouths communicate, and steering is controlled
When valve (24) processed is positioned at the second from left position, A ' mouths, P1 mouthfuls and P ' mouths communicate, and B ' mouths and T ' mouths communicate, and B1 mouthfuls are closing mouth, course changing control
Valve (24) positioned at it is one right when, B ' mouths, P1 mouthfuls and P ' mouths communicate, and A ' mouths, B1 mouthfuls and T ' mouths communicate, and steering control valve (24) is located at
When two right, B ' mouths, P1 mouthful and P ' mouths communicate, and A ' mouths and T ' mouths communicate, and B1 mouthful are to close mouth.
2. a kind of synchronous valve for being used to control harvester steering and taiwan cut off and landing according to claim 1, it is characterised in that：
When steering control valve (24) is positioned at the first from left position, there is throttling channel between B1 mouthfuls and T ' mouths；Steering control valve (24) positioned at it is one right when,
There is throttling channel between B1 and T '.
3. according to claim 1 be used to that harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing, it is characterised in that：More work(
Energy guiding valve (2) further includes the safety valve and overflow valve near oil sources, and the oil inlet of the safety valve is connect with oil sources, pacifies
The oil outlet of full valve is connect with oil return fuel tank (6), the oil circuit connection between the overflow valve oil inlet and P mouthfuls and T1 mouthfuls, is overflow
The oil outlet of stream valve is connect with fuel tank (6).
4. a kind of synchronous valve for being used to control harvester steering and taiwan cut off and landing according to claim 3, it is characterised in that：
The Opening pressure of the safety valve is 13.5MPa, and the Opening pressure of the overflow valve is 7~8MPa.
5. a kind of synchronous valve for being used to control harvester steering and taiwan cut off and landing according to claim 3, it is characterised in that：
The multi-functional guiding valve (2) is by safety valve, overflow valve, ceding of Taiwan control valve (23), steering control valve (24) and hydraulic control one-way valve
(25) the compound hand-operated valve to become one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720613796.7U CN207598603U (en) | 2017-05-27 | 2017-05-27 | It is a kind of to be used to that harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720613796.7U CN207598603U (en) | 2017-05-27 | 2017-05-27 | It is a kind of to be used to that harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598603U true CN207598603U (en) | 2018-07-10 |
Family
ID=62751915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720613796.7U Active CN207598603U (en) | 2017-05-27 | 2017-05-27 | It is a kind of to be used to that harvester to be controlled to turn to the synchronous valve with taiwan cut off and landing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598603U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930679A (en) * | 2017-05-27 | 2018-12-04 | 江苏沃得农业机械有限公司 | A kind of synchronous valve turned to for controlling harvester with taiwan cut off and landing |
| CN109595023A (en) * | 2018-12-26 | 2019-04-09 | 天地科技股份有限公司 | A kind of advanced hydraulic support walking mechanism lifting device and its control method |
-
2017
- 2017-05-27 CN CN201720613796.7U patent/CN207598603U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108930679A (en) * | 2017-05-27 | 2018-12-04 | 江苏沃得农业机械有限公司 | A kind of synchronous valve turned to for controlling harvester with taiwan cut off and landing |
| CN109595023A (en) * | 2018-12-26 | 2019-04-09 | 天地科技股份有限公司 | A kind of advanced hydraulic support walking mechanism lifting device and its control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 Zhenjiang city of Jiangsu province Danyang Dan Beizhen Picheng Industrial Park Patentee after: Jiangsu wode Agricultural Machinery Co., Ltd Address before: 213000 Zhenjiang city of Jiangsu province Danyang Dan Beizhen Picheng Industrial Park Patentee before: JIANGSU WORLD AGRICULTURAL MACHINERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |