CN106122139A - A kind of hydraulic system being applied to pruner - Google Patents
A kind of hydraulic system being applied to pruner Download PDFInfo
- Publication number
- CN106122139A CN106122139A CN201610728568.4A CN201610728568A CN106122139A CN 106122139 A CN106122139 A CN 106122139A CN 201610728568 A CN201610728568 A CN 201610728568A CN 106122139 A CN106122139 A CN 106122139A
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- Prior art keywords
- oil
- valve body
- hydraulic
- hydraulic control
- control valve
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of hydraulic system being applied to pruner, including hydraulic oil container, three hydraulic pumps, the first hydraulic control valve, the second hydraulic control valve and the 3rd hydraulic control valve, the oil inlet end of three hydraulic pumps connects with hydraulic oil container, and the oil outlet end of three hydraulic pumps connects with the first hydraulic control valve, the second hydraulic control valve and the 3rd hydraulic control valve respectively；First hydraulic control valve respectively with the first motor and the first oil cylinder, and the second oil cylinder connection；Second hydraulic control valve connects with the second motor and the 3rd motor respectively；3rd hydraulic control valve and the connection of the 4th motor, first hydraulic control valve, the second hydraulic control valve and the oil-out of the 3rd hydraulic control valve, and the hydraulic fluid port that leaks back to of first motor, the second motor, the 3rd motor and the 4th motor connects with the oil inlet end of oil return filter element, the oil outlet end of oil return filter element connects with hydraulic oil container.The present invention is directed to pruner carry out concentrating hydraulic control, promote convenience and the control stability of manipulation.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, particularly to a kind of hydraulic system being applied to pruner.
Background technology
Application number 201410621569.X discloses a kind of highway planting clipping device and sweeper, relates to environmental sanitation machinery neck
Territory, wherein highway planting clipping device includes pruning mechanism, JIANCAO mechanism, recovering mechanism, refuse bin and walking mechanism.Can realize
The greening on the way such as highway is pruned efficiently and cleaned, and this highway planting clipping device and sweeper are first to repair
Cutting and regather inefficient, do not shred the branch pruned, control inconvenience, control system is unstable.
Summary of the invention
It is an object of the invention to provide a kind of hydraulic system being applied to pruner, to be solved technical problem is that: as
What carries out concentrating manipulation for pruner, promotes convenience and the control stability of manipulation.
The technical scheme is that a kind of hydraulic system being applied to pruner, including
Hydraulic oil container, three hydraulic pumps, the first hydraulic control valve, the second hydraulic control valve and the 3rd hydraulic control valve, three described liquid
The oil inlet end of press pump is connected with described hydraulic oil container by oil pipe, and the oil outlet end of three described hydraulic pumps is respectively by oil pipe and institute
State the first hydraulic control valve, the second hydraulic control valve and the connection of the 3rd hydraulic control valve；Described first hydraulic control valve is by oil
Pipe respectively with control the first motor of support arm horizontal hunting and drive the first oil cylinder of vertically rotating of support arm, and drive is repaiied
Shear the second oil cylinder connection that millstone vertically rotates；Described second hydraulic control valve prunes chopper with driving respectively by oil pipe
Carry out the second motor pruning green plants to connect with the 3rd motor driving pruning chopper to carry out cutting off green plants；Described
3rd hydraulic control valve is connected with the 4th motor of suction blower fan by oil pipe, described first hydraulic control valve, the second hydraulic pressure control
Valve processed and the oil-out of the 3rd hydraulic control valve, and the leaking back to of the first motor, the second motor, the 3rd motor and the 4th motor
Hydraulic fluid port is connected with the oil inlet end of oil return filter element by oil pipe, and the oil outlet end of described oil return filter element is by oil pipe and described hydraulic oil container
Connection.
The invention has the beneficial effects as follows: three hydraulic pumps to hydraulic oil container extract force feed, the first hydraulic control valve, second
The hydraulic oil that hydraulic control valve and the 3rd hydraulic control valve provide according to three hydraulic pumps respectively, controls the first motor, the first oil
Cylinder, the second oil cylinder, the second motor, the 3rd motor and the 4th motor operation, thus drive the pruning chopper on pruner to green
Change plant to prune and cut off, improve pruning precision and prune efficiency；Realize carrying out pruner concentrating manipulation, liquid simultaneously
Voltage-controlled system can promote convenience and the control stability of manipulation.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described first hydraulic control valve include the first commutation valve body, second commutation valve body, the 3rd commutation valve body,
First check valve and the first overflow valve, the intermediate oil inlet mouth of the first commutation valve body is connected with described hydraulic pump by oil pipe, described
The middle oil-out of the first commutation valve body is connected by oil pipe with the intermediate oil inlet mouth of described second commutation valve body, and described second changes
Intermediate oil inlet mouth to the middle oil-out of valve body with described 3rd commutation valve body is connected by oil pipe；Described 3rd commutation valve body
Middle oil-out successively with the oil return opening of the first commutation valve body, the second commutation valve body and the 3rd commutation valve body by oil pipe even
Logical, and connected with described oil return filter element by oil pipe；Two actuator ports of described first commutation valve body and described second oil cylinder
Connection, two actuator ports of described second commutation valve body connect with described first oil cylinder, two of described 3rd commutation valve body
Actuator port connects with described first motor；Described first commutation valve body, the second commutation valve body and the pressure of the 3rd commutation valve body
Hydraulic fluid port passes sequentially through oil pipe connection, is connected, also by first by the intermediate oil inlet mouth of the first check valve and the first commutation valve body
Overflow valve connects with described oil return filter element.
Above-mentioned further scheme is used to provide the benefit that: to be changed by the first commutation valve body, the second commutation valve body and the 3rd
The first motor, the first oil cylinder and the running of the second oil cylinder can be regulated and controled respectively to valve body, support arm can be driven to carry out horizontal hunting
With vertically rotation, drive pruning chopper vertically to rotate, it is achieved to prune chopper and precisely prune chopping green plants, can have simultaneously
Effect promotes working performance, simultaneously hydraulic control, can promote convenience and the control stability of manipulation.
Further, described second hydraulic control valve includes the 4th commutation valve body, the second check valve and the second overflow valve, described
The intermediate oil inlet mouth of the 4th commutation valve body is connected with described hydraulic pump by oil pipe, the middle oil-out of described 4th commutation valve body
Connected with its oil return opening by oil pipe, and connected with described oil return filter element by oil pipe, the first work of described 4th commutation valve body
Make hydraulic fluid port to be connected with the first actuator port of described second motor and the first actuator port of the 3rd motor respectively by flow divider,
Second actuator port of described second motor and the second actuator port of the 3rd motor are all by oil pipe and described 4th reversal valve
Second actuator port connection of body, the pressure oil port of described 4th commutation valve body is by the second check valve oil-in middle with it even
Logical, the intermediate oil inlet mouth of described 4th commutation valve body is connected with described oil return filter element by the second overflow valve.
Use above-mentioned further scheme to provide the benefit that: by the 4th commutation valve body can regulate and control respectively the second motor and
3rd motor operation, can drive pruning chopper to carry out pruning green plants and chopping green plants, can effectively promote operation
Efficiency, simultaneously hydraulic control, can promote convenience and the control stability of manipulation.
Further, described 3rd hydraulic control valve includes the 5th commutation valve body, the 3rd check valve and the 3rd overflow valve, described
The intermediate oil inlet mouth of the 5th commutation valve body is connected with described hydraulic pump by oil pipe, the middle oil-out of described 5th commutation valve body
Connected with its oil return opening by oil pipe, and connected with described oil return filter element by oil pipe, two works of described 5th commutation valve body
Make hydraulic fluid port and connect with described 4th motor by oil pipe, the described 5th pressure oil port commutating valve body pass through the 3rd check valve and its
Intermediate oil inlet mouth connects, and the intermediate oil inlet mouth of described 5th commutation valve body is connected with described oil return filter element by the 3rd overflow valve.
Above-mentioned further scheme is used to provide the benefit that: the 4th motor can be regulated and controled respectively by the 5th commutation valve body and transport
Make, can drive suction blower fan that the green plants after chopping is absorbed and collected, disposably complete handling process, simultaneously liquid
Pressure manipulation, can promote convenience and the control stability of manipulation.
Further, three described hydraulic pumps and described first hydraulic control valve, the second hydraulic control valve and the 3rd hydraulic pressure control
It is provided with pressure measuring instruments on three oil pipes between valve processed.
Use above-mentioned further scheme to provide the benefit that: personnel convenient to operate understand in time the first hydraulic control valve,
Two hydraulic control valves and the hydraulic pressure situation of the 3rd hydraulic control valve transmission, ensure native system stable operation.
Further, the oil pipe between oil inlet end and the described hydraulic oil container of three described hydraulic pumps is provided with heater.
Use above-mentioned further scheme to provide the benefit that: hydraulic oil can be heated by heater, promote transmission efficiency
And pressure stability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of hydraulic system being applied to pruner of the present invention；
Fig. 2 is the structural representation of the first hydraulic control valve；
Fig. 3 is the structural representation of the second hydraulic control valve；
Fig. 4 is the structural representation of the 3rd hydraulic control valve；
Fig. 5 is the front view of pruner.
In accompanying drawing, the list of parts representated by each label is as follows:
1, hydraulic oil container, 2, hydraulic pump, the 3, first hydraulic control valve, the 4, second hydraulic control valve, the 5, the 3rd hydraulic control
Valve, the 6, first motor, the 7, first oil cylinder, the 8, second oil cylinder, the 9, second motor, the 10, the 3rd motor, the 11, the 4th motor, 12, return
Oil filter element, the 13, first commutation valve body, the 14, second commutation valve body, the 15, the 3rd commutation valve body, the 16, first check valve, 17, first
Overflow valve, the 18, the 4th commutation valve body, the 19, second check valve, the 20, second overflow valve, the 21, flow divider, the 22, the 5th commutation valve body,
23, the 3rd check valve, the 24, the 3rd overflow valve, 25, pressure measuring instruments, 26, heater, 27, support arm, 28, prune chopping
Device, 29, suction blower fan.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
Non-for limiting the scope of the present invention.
As shown in Figures 1 to 5, a kind of hydraulic system being applied to pruner, including 1, three hydraulic pumps 2 of hydraulic oil container,
First hydraulic control valve the 3, second hydraulic control valve 4 and the 3rd hydraulic control valve 5, the oil inlet end of three described hydraulic pumps 2 passes through
Oil pipe connects with described hydraulic oil container 1, and the oil outlet end of three described hydraulic pumps 2 is respectively by oil pipe and described first hydraulic control
Valve the 3, second hydraulic control valve 4 connects with the 3rd hydraulic control valve 5；Described first hydraulic control valve 3 by oil pipe respectively with control
The first oil cylinder 7 that first motor 6 of support arm 27 horizontal hunting processed and drive support arm 27 vertically rotate, and drive pruning to cut
The second oil cylinder 8 that millstone 28 vertically rotates connects；Described second hydraulic control valve 4 prunes chopper with driving respectively by oil pipe
28 carry out pruning the second motor 9 of green plants and driving pruning chopper 28 to carry out cutting off the 3rd motor 10 of green plants even
Logical；Described 3rd hydraulic control valve 5 is connected with the 4th motor 11 of suction blower fan by oil pipe, described first hydraulic control valve 3,
Second hydraulic control valve 4 and the oil-out of the 3rd hydraulic control valve 5, and first motor the 6, second motor the 9, the 3rd motor 10 and
The hydraulic fluid port that leaks back to of the 4th motor 11 is connected with the oil inlet end of oil return filter element 12 by oil pipe, the oil outlet end of described oil return filter element 12
Connected with described hydraulic oil container 1 by oil pipe；Three hydraulic pumps 2 to hydraulic oil container 1 extract force feed, the first hydraulic control valve 3,
The hydraulic oil that second hydraulic control valve 4 and the 3rd hydraulic control valve 5 provide according to three hydraulic pumps 2 respectively, controls the first motor
6, first oil cylinder the 7, second oil cylinder the 8, second motor the 9, the 3rd motor 10 and the 4th motor 11 operate, thus drive on pruner
Prune chopper 28 green plants is pruned and cuts off, improve pruning precision and prune efficiency；Realize pruning simultaneously
Machine carries out concentrating manipulation, and hydraulic control can promote convenience and the control stability of manipulation.
In above-described embodiment, as in figure 2 it is shown, described first hydraulic control valve 3 includes that the first commutation valve body 13, second commutates
Valve body the 14, the 3rd commutation valve body the 15, first check valve 16 and the first overflow valve 17, the intermediate oil inlet mouth of the first commutation valve body 13 leads to
Cross oil pipe to connect with described hydraulic pump 2, the middle oil-out of described first commutation valve body 13 and described second commutation valve body 14
Intermediate oil inlet mouth is connected by oil pipe, and the middle oil-out of described second commutation valve body 14 commutates in valve body 15 with the described 3rd
Between oil-in connected by oil pipe；Described 3rd commutation valve body 15 middle oil-out successively with first commutate valve body 13, second
Commutation valve body 14 is connected by oil pipe with the oil return opening of the 3rd commutation valve body 15, and by oil pipe with described oil return filter element 12 even
Logical；Two actuator ports of described first commutation valve body 13 connect with described second oil cylinder 8, the two of described second commutation valve body 14
Individual actuator port connects with described first oil cylinder 7, two actuator ports of described 3rd commutation valve body 15 and described first motor 6
Connection；The pressure oil port of described first commutation valve body the 13, second commutation valve body 14 and the 3rd commutation valve body 15 passes sequentially through oil pipe
Connection, is connected, also by the first overflow valve 17 and institute by the intermediate oil inlet mouth of the first check valve 16 with the first commutation valve body 13
State oil return filter element 12 to connect；Can be adjusted respectively by first commutation valve body the 13, second commutation valve body 14 and the 3rd commutation valve body 15
Control first motor the 6, first oil cylinder 7 and the second oil cylinder 8 operate, support arm 27 can be driven to carry out horizontal hunting and vertically rotate,
Drive pruning chopper 28 vertically to rotate, it is achieved to prune chopper 28 and precisely prune chopping green plants, can effectively promote simultaneously
Working performance, simultaneously hydraulic control, can promote convenience and the control stability of manipulation.
In above-described embodiment, as it is shown on figure 3, described second hydraulic control valve 4 includes that the 4th commutation valve body 18, second is unidirectional
Valve 19 and the second overflow valve 20, the intermediate oil inlet mouth of described 4th commutation valve body 18 is connected with described hydraulic pump 2 by oil pipe, institute
The middle oil-out stating the 4th commutation valve body 18 is connected with its oil return opening by oil pipe, and by oil pipe and described oil return filter element 12
Connection, the first actuator port of described 4th commutation valve body 18 by flow divider 21 respectively with the first work of described second motor 9
Make the first actuator port connection of hydraulic fluid port and the 3rd motor 10, the second actuator port of described second motor 9 and the 3rd motor 10
The second actuator port all by oil pipe with described 4th commutation valve body 18 the second actuator port connect, described 4th reversal valve
The pressure oil port of body 18 is connected with its middle oil-in by the second check valve 19, the intermediate oil inlet of described 4th commutation valve body 18
Mouth is connected with described oil return filter element 12 by the second overflow valve 20；The second motor can be regulated and controled respectively by the 4th commutation valve body 18
9 and the 3rd motor 10 operate, can drive pruning chopper 28 carry out prune green plants and chopping green plants, can effectively carry
Rise working performance, simultaneously hydraulic control, convenience and the control stability of manipulation can be promoted.
In above-described embodiment, as shown in Figure 4, described 3rd hydraulic control valve 5 includes that the 5th commutation valve body the 22, the 3rd is unidirectional
Valve 23 and the 3rd overflow valve 24, the intermediate oil inlet mouth of described 5th commutation valve body 22 is connected with described hydraulic pump 2 by oil pipe, institute
The middle oil-out stating the 5th commutation valve body 22 is connected with its oil return opening by oil pipe, and by oil pipe and described oil return filter element 12
Connection, two actuator ports of described 5th commutation valve body 22 are connected with described 4th motor 11 by oil pipe, and the described 5th changes
Connected with its middle oil-in by the 3rd check valve 23 to the pressure oil port of valve body 22, the centre of described 5th commutation valve body 22
Oil-in is connected with described oil return filter element 12 by the 3rd overflow valve 24；The 4th can be regulated and controled respectively by the 5th commutation valve body 22
Motor 11 operates, and can drive suction blower fan 29 that the green plants after chopping is absorbed and collected, and disposably completes to process
Flow process, simultaneously hydraulic control, can promote convenience and the control stability of manipulation.
In above-described embodiment, as it is shown in figure 1, three described hydraulic pumps 2 and described first hydraulic control valve the 3, second hydraulic pressure
It is provided with pressure measuring instruments 25 on three oil pipes between control valve 4 and the 3rd hydraulic control valve 5；Personnel convenient to operate and
Time understand first hydraulic control valve the 3, second hydraulic control valve 4 and the 3rd hydraulic control valve 5 transmission hydraulic pressure situation, ensure that this is
System stable operation.
In above-described embodiment, as it is shown in figure 1, the oil between the oil inlet end of three described hydraulic pumps 2 and described hydraulic oil container 1
Heater 26 it is provided with on pipe；Hydraulic oil can be heated by heater 26, promotes transmission efficiency and pressure stability.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (6)
1. the hydraulic system being applied to pruner, it is characterised in that: include hydraulic oil container (1), three hydraulic pumps (2),
One hydraulic control valve (3), the second hydraulic control valve (4) and the 3rd hydraulic control valve (5), the oil-feed of three described hydraulic pumps (2)
End connect with described hydraulic oil container (1) by oil pipe, and the oil outlet end of three described hydraulic pumps (2) passes through oil pipe and described the respectively
One hydraulic control valve (3), the second hydraulic control valve (4) connect with the 3rd hydraulic control valve (5)；Described first hydraulic control valve
(3) the first oil vertically rotated with the first motor (6) and drive support arm controlling support arm horizontal hunting respectively by oil pipe
Cylinder (7), and the second oil cylinder (8) connection that drive pruning chopper vertically rotates；Described second hydraulic control valve (4) is by oil
Pipe is pruned chopper and is carried out pruning second motor (9) of green plants with driving and drive pruning chopper to carry out cutting off green respectively
Change the 3rd motor (10) connection of plant；Described 3rd hydraulic control valve (5) is by the 4th motor of oil pipe with suction blower fan
(11) connection, described first hydraulic control valve (3), the second hydraulic control valve (4) and the oil-out of the 3rd hydraulic control valve (5),
And first motor (6), the second motor (9), the 3rd motor (10) and the 4th motor (11) leak back to hydraulic fluid port by oil pipe with
The oil inlet end connection of oil return filter element (12), the oil outlet end of described oil return filter element (12) is by oil pipe with described hydraulic oil container (1) even
Logical.
A kind of hydraulic system being applied to pruner, it is characterised in that: described first hydraulic control
Valve (3) include the first commutation valve body (13), second commutation valve body (14), the 3rd commutation valve body (15), the first check valve (16) and
First overflow valve (17), the intermediate oil inlet mouth of the first commutation valve body (13) is connected with described hydraulic pump (2) by oil pipe, and described the
The middle oil-out of one commutation valve body (13) is connected by oil pipe with the intermediate oil inlet mouth of described second commutation valve body (14), described
The middle oil-out of the second commutation valve body (14) is connected by oil pipe with the intermediate oil inlet mouth of described 3rd commutation valve body (15)；Institute
The middle oil-out stating the 3rd commutation valve body (15) changes with the first commutation valve body (13), the second commutation valve body (14) and the 3rd successively
Oil return opening to valve body (15) is connected by oil pipe, and is connected with described oil return filter element (12) by oil pipe；Described first commutation
Two actuator ports of valve body (13) connect with described second oil cylinder (8), two working oils of described second commutation valve body (14)
Mouth connects with described first oil cylinder (7), and two actuator ports of described 3rd commutation valve body (15) are with described first motor (6) even
Logical；The pressure oil port of described first commutation valve body (13), the second commutation valve body (14) and the 3rd commutation valve body (15) passes sequentially through
Oil pipe connects, and is connected, also by the first overflow by the intermediate oil inlet mouth of the first check valve (16) with the first commutation valve body (13)
Valve (17) connects with described oil return filter element (12).
A kind of hydraulic system being applied to pruner, it is characterised in that: described second hydraulic control
Valve (4) includes the 4th commutation valve body (18), the second check valve (19) and the second overflow valve (20), described 4th commutation valve body (18)
Intermediate oil inlet mouth connected with described hydraulic pump (2) by oil pipe, the described 4th middle oil-out commutating valve body (18) passes through
Oil pipe connects with its oil return opening, and is connected with described oil return filter element (12) by oil pipe, and the described 4th commutates the of valve body (18)
One actuator port by flow divider (21) respectively with the of the first actuator port of described second motor (9) and the 3rd motor (10)
One actuator port connection, the second actuator port of described second motor (9) and the second actuator port of the 3rd motor (10) are the most logical
Cross oil pipe to connect with the second actuator port of described 4th commutation valve body (18), the pressure oil port of described 4th commutation valve body (18)
Being connected with its middle oil-in by the second check valve (19), the intermediate oil inlet mouth of described 4th commutation valve body (18) is by second
Overflow valve (20) connects with described oil return filter element (12).
A kind of hydraulic system being applied to pruner, it is characterised in that: described 3rd hydraulic control
Valve (5) includes the 5th commutation valve body (22), the 3rd check valve (23) and the 3rd overflow valve (24), described 5th commutation valve body (22)
Intermediate oil inlet mouth connected with described hydraulic pump (2) by oil pipe, the described 5th middle oil-out commutating valve body (22) passes through
Oil pipe connects with its oil return opening, and is connected with described oil return filter element (12) by oil pipe, the two of described 5th commutation valve body (22)
Individual actuator port connect with described 4th motor (11) by oil pipe, and the described 5th pressure oil port commutating valve body (22) passes through the
Three check valves (23) connect with its middle oil-in, and the intermediate oil inlet mouth of described 5th commutation valve body (22) is by the 3rd overflow valve
(24) connect with described oil return filter element (12).
5. according to the hydraulic system being applied to pruner a kind of described in any one of Claims 1-4, it is characterised in that: three institutes
State between hydraulic pump (2) and described first hydraulic control valve (3), the second hydraulic control valve (4) and the 3rd hydraulic control valve (5)
Pressure measuring instruments (25) it is provided with on three oil pipes.
6. according to the hydraulic system being applied to pruner a kind of described in any one of Claims 1-4, it is characterised in that: three institutes
State and on the oil pipe between the oil inlet end of hydraulic pump (2) and described hydraulic oil container (1), be provided with heater (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728568.4A CN106122139A (en) | 2016-08-25 | 2016-08-25 | A kind of hydraulic system being applied to pruner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728568.4A CN106122139A (en) | 2016-08-25 | 2016-08-25 | A kind of hydraulic system being applied to pruner |
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| CN106122139A true CN106122139A (en) | 2016-11-16 |
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| CN201610728568.4A Pending CN106122139A (en) | 2016-08-25 | 2016-08-25 | A kind of hydraulic system being applied to pruner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336143A (en) * | 2020-02-12 | 2020-06-26 | 山东省农业机械科学研究院 | Fruit tree pruning system based on hydraulic control |
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| CN102396352A (en) * | 2011-11-03 | 2012-04-04 | 广西玉柴专用汽车有限公司 | High-speed trimming mechanism with alternate fan of knives for maintaining hedges |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111336143A (en) * | 2020-02-12 | 2020-06-26 | 山东省农业机械科学研究院 | Fruit tree pruning system based on hydraulic control |
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