CN108895045A - A kind of hydraulic system and its application of Self propelled silage harvest bundling machine - Google Patents
A kind of hydraulic system and its application of Self propelled silage harvest bundling machine Download PDFInfo
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- CN108895045A CN108895045A CN201810739185.6A CN201810739185A CN108895045A CN 108895045 A CN108895045 A CN 108895045A CN 201810739185 A CN201810739185 A CN 201810739185A CN 108895045 A CN108895045 A CN 108895045A
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/03—Driving mechanisms or parts thereof for harvesters or mowers fluid
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
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- Engineering & Computer Science (AREA)
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- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Fluid-Pressure Circuits (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
The invention discloses the hydraulic systems and its application of a kind of Self propelled silage harvest bundling machine, including power source, power source is connected with the first oil pump and the second oil pump, first oil pump connects two-way valve, control taiwan cut off and landing and steering cylinder, second oil pump connects ratio switch valve, controls work and the rear cover oil cylinder of feeding motor.The present invention guarantees the safety of system, while 3-position 4-way slide valve and hydraulic control one-way valve work together, preventing oil cylinder, oil liquid flows back in the operating condition by the way that safety valve to be integrated in valve body.Ratio switch valve controls the switch of 3-position 4-way or two-position four-way valve control valve core by electric signal, and the input quantity of current signal is directly proportional to spool displacement amount.The hydraulic system has saved power resource, improves energy use efficiency, and multiple control terminals control oil circuit, guarantees the normal on-off of oil circuit in the Self propelled silage harvest bundling machine course of work, safer.
Description
Technical field
The present invention relates to Self propelled silage harvest bundling machines, more particularly to a kind of the hydraulic of Self propelled silage harvest bundling machine
System and its application.
Background technique
Country's silage harvester tool degree is relatively low at present, mainly there is 3 kinds of modes：Manual work, semi-machine are turned into
Industry and do mechanization operation.Labor intensity when manual work is very big, and efficiency is lower；When semi-mechanization operation, by artificial
Processing threshing ground is transported to after silo crop is gathered in, by carrying out envelope cellar for storing things storage after the chopping of motor-driven hay cutter；When do mechanization operation by
Silage harvester is directly gathered in field, is shredded and fine crushing material is thrown bundling house and completes bundling, twines net work, then
Wrapping storage is completed by film-wrapping machine.A kind of self-propelled blueness
Harvest bundling machine is store, steering when steering cylinder is used to control the walking of Self propelled silage harvest bundling machine when working,
Ensiling stalks are cut off and are fed shredder mechanism by the control ceding of Taiwan movement of ceding of Taiwan oil cylinder, and ensiling stalks pass through shredder bar high speed rotation,
Straw chopping is thrown through material casting cylinder into distribution cabins.Material constantly feeds distribution cabins, is sent by material toggling roller refining to working chamber,
Material is intracavitary the pressure roller formation by circular trace operating, is gradually compressed by the effect of centrifugal force, when compression degree reaches
It is required that give to bundling house and package silk screen operation is carried out to cylinder bundle when the range of setting, when packet stratum reticulare number reaches setting numerical value,
Cutoff tool automatically cuts off silk screen, and molding ensilage coating is sent out, and completes the production of ensiling bundle.Currently, domestic ensiling
Forage chopper machine hydraulic system largely uses mechanical control, and mechanical control can be very good caused by avoiding because of oil contamination
Spool clamping stagnation problem, the large labor intensity of certain mechanical control operates driver and requires higher, while energy utilization rate
Lower, system heat generation amount is big, cannot be well adapted for the current market demand.
Summary of the invention
For need to complete in current Self propelled silage harvest bundling machine operation process harvest, walking, bundling task, this hair
It is bright to propose a kind of high efficiency, the hydraulic system of safer Self propelled silage harvest bundling machine.
To achieve the goals above, the technical solution adopted by the present invention is as follows：A kind of Self propelled silage harvest bundling machine
Hydraulic system, the power source including duplex hydraulic oil pump, duplex hydraulic oil pump are made of the first oil pump and the second oil pump, the
One oil pump is taiwan cut off and landing, Vehicular turn provides flow needed for work, and the second oil pump is feeding motor, rear cover oil cylinder provides
Flow needed for work；
First oil pump out of the mouth connects the oil inlet of two-way valve group, the 3-position 4-way hand-operated direction valve that two-way valve group includes and
Wherein, first and third oil outlet of 3-position 4-way hand-operated direction valve is connected to 3 position-5 way hand-operated direction valve with ceding of Taiwan oil cylinder, and three
Hydraulic control one-way valve is equipped in the connecting line of position four-way hand-operated direction valve and ceding of Taiwan oil cylinder, oil liquid is entered by hydraulic control one-way valve to be cut
Platform oil cylinder, the speed of the size control taiwan cut off and landing by entering ceding of Taiwan Flow of Cylinder；3 position-5 way in two-way valve group changes manually
It is connected to the oil outlet of valve with steering cylinder oil inlet, controls Vehicular turn；
The oil outlet of second oil pump connects with the oil inlet of ratio switch valve control connection, and ratio switch valve control connection goes out
Hydraulic fluid port connects concatenated two groups of ratio switch valves；First group of ratio switch valve includes two-position four-way valve, two-position four-way valve into（Out）
Hydraulic fluid port is connected to feeding motor oil inlet, and the rotation by controlling feeding motor controls feeding amount, is provided with and is used on oil return line
Slow down the check valve of oil return buffering and the throttle valve for controlling oil return speed；Second group of ratio switch valve includes 3-position 4-way
Valve, the oil inlet of three-position four-way valve successively connects one-way throttle valve, shut-off valve is followed by rear cover oil cylinder, and rear cover oil cylinder is located at bundling house
Bottom end control is bundled to be automatically drained out outside machine, directly enters rear cover oil cylinder from the check valve of one-way throttle valve when oil inlet, when oil return from
The throttle valve oil return of one-way throttle valve slows down oil return buffering, shut-off valve, which is closed, in circuit protects by adjusting throttle valve openings of sizes
Card rear cover oil cylinder is not fallen after rise.
The oil inlet of the two-way valve group is equipped with direct-acting overflow valve, when system pressure is higher than direct-acting overflow valve setting
When pressure, the spool of direct-acting overflow valve is opened, and oil liquid unloads back power source by overflow valve, when oil liquid flows through three four by the road
When the commutation position of logical hand-operated direction valve first, hydraulic control one-way valve is opened, and oil liquid enters ceding of Taiwan oil cylinder, controls cylinder action；When
When 3-position 4-way hand-operated direction valve commutates to third position, hydraulic control one-way valve is opened, and ceding of Taiwan oil cylinder retracts；When 3-position 4-way changes manually
When being in middle position to valve and 3 position-5 way hand-operated direction valve, oil liquid returns power source；When 3 position-5 way hand-operated direction valve is in commutation position
First or when third position, oil liquid flows into steering cylinder, completes to turn to work.
The ratio switch valve control connection is integrated with band spring non-return valve, bi-bit bi-pass switch valve, uniform-pressure-drop valve and section
Flow valve；The oil outlet of second oil pump and ratio switch valve control connection oil inlet and be connected tos, oil liquid controlled through ratio switch valve join into
Oil liquid is led to band spring non-return valve oil inlet and bi-bit bi-pass switch valve by hydraulic fluid port；Band spring non-return valve oil outlet and first group of ratio
Example switch valve group and the oil inlet of second group of ratio switch valve group connect, bi-bit bi-pass switch valve spring cavity and uniform-pressure-drop valve into
Hydraulic fluid port connection, uniform-pressure-drop valve oil outlet is connected to hydraulic radiator oil inlet, while hydraulic radiator oil inlet and throttle valve
Oil outlet connection, throttle valve oil inlet are connected to the T mouth of first group of ratio switch valve group and second group of ratio switch valve group；Oil liquid
Into after ratio switch valve control connection, enters bi-bit bi-pass switch valve all the way and control epicoele, another way oil liquid opens band spring list
Enter the main valve plug of first group of ratio switch valve and second group of ratio switch valve to valve, reflux oil liquid is through fixed orifice by oil liquid
Bi-bit bi-pass switch valve cavity of resorption is led to, the normal work of system pressure systems stabilisation is guaranteed by two cavity pressure difference of bi-bit bi-pass switch valve
Make.
Hydraulic system of the present invention harvests Silage for Self propelled silage harvest bundling machine.
Compared with prior art, the beneficial effects of the present invention are：Power source of the invention be connected with the first oil pump and
Second oil pump, the first oil pump connect two-way valve group, control taiwan cut off and landing and steering cylinder, and the second oil pump connection ratio is opened
Valve is closed, the work of control feeding motor and rear cover oil cylinder high degree of automation improve work efficiency.The present invention is by by direct acting
Formula overflow valve is integrated in valve body, guarantees the safety of system, while 3-position 4-way hand-operated direction valve is combined with hydraulic control one-way valve
Work, preventing oil cylinder, oil liquid flows back in the operating condition.Ratio switch valve controls first group of ratio switch valve group by electric signal
Or the switch of second group of ratio switch valve group, the input quantity of current signal and first group of ratio switch valve group or second group of ratio are opened
It is directly proportional to close valve group spool displacement amount.The hydraulic system has saved power resource, improves energy use efficiency, multiple control terminals
Oil circuit is controlled, guarantees the normal on-off of oil circuit in the Self propelled silage harvest bundling machine course of work, it is safer.
Detailed description of the invention
Fig. 1 is Self propelled silage harvest bundling machine hydraulic schematic；
Fig. 2 is the schematic diagram of Self propelled silage harvest bundling machine hydraulic system two-way valve group；
Fig. 3 is the schematic diagram of Self propelled silage harvest bundling machine hydraulic system ratio switch valve control connection；
Fig. 4 is the enlarged diagram of Self propelled silage harvest bundling machine first and second group of ratio switch valve of hydraulic system.
In figure：1, power source；2, the first oil pump；3, two-way valve group；4, ceding of Taiwan oil cylinder；5, steering cylinder；6, feeding motor；7,
Rear cover oil cylinder；8, shut-off valve；9, one-way throttle valve；10, second group of ratio switch valve；11, first group of ratio switch valve；1101,
The hydraulic control one-way valve of first group of ratio switch valve；12, ratio switch valve control connection；13, the second oil pump；301,3-position 4-way
Hand-operated direction valve；302, hydraulic control one-way valve；303,3 position-5 way hand-operated direction valve；304, direct-acting overflow valve；1201, band spring
Check valve；1202, bi-bit bi-pass switch valve；1203, uniform-pressure-drop valve；1204, throttle valve；1205, fixed orifice.
Specific embodiment
In order to keep the purpose of the present invention, technical solution clearer, below with reference to examples and drawings to the present invention make into
The detailed description of one step, but embodiments of the present invention are not limited only to this.
Solid line is working line in figure, and dotted line is control piper, and perforated line is module group.
A kind of hydraulic system of Self propelled silage harvest bundling machine, the power source 1 including duplex hydraulic oil pump, the power
Source 1 is connected with the first oil pump 2 and the second oil pump 13；
Wherein, the first oil pump 2, oil outlet connect the oil inlet of two-way valve group 3.The two-way valve group first via 3-position 4-way is manual
301 first and third oil outlets of reversal valve are connected to 4 oil inlet of ceding of Taiwan oil cylinder, 3-position 4-way hand-operated direction valve 301 and ceding of Taiwan oil cylinder
Hydraulic control one-way valve 302 is installed, oil liquid enters ceding of Taiwan oil cylinder 4 by hydraulic control one-way valve 302, is cut by entering in 4 connecting line
The speed of the size control taiwan cut off and landing of platform Flow of Cylinder, when hydraulic control one-way valve 302 can guarantee system stalls, at the ceding of Taiwan
Safety guarantee is provided in scheduled position, while for the maintenance of the ceding of Taiwan.
First and third oil outlet of second road of two-way valve group 3 position-5 way hand-operated direction valve 303 and steering cylinder 5 into
Hydraulic fluid port connection, controls Vehicular turn.
In use, as shown in Fig. 2, the oil inlet of the two-way valve group of the first oil pump 2 connection is equipped with direct-acting overflow valve
304, when system pressure is higher than the pressure that direct-acting overflow valve 304 is set, the spool of direct-acting overflow valve 304 is opened, oil liquid
Power source 1 is unloaded back, when oil liquid flows through the commutation position first of 3-position 4-way hand-operated direction valve 301 by the road, hydraulic control one-way valve
302 open, and oil liquid enters ceding of Taiwan oil cylinder 4, control cylinder action；When 3-position 4-way hand-operated direction valve 301 commutates to third position,
Hydraulic control one-way valve 302 is opened, and ceding of Taiwan oil cylinder 4 retracts；When 3-position 4-way hand-operated direction valve 301 and 3 position-5 way hand-operated direction valve
303 be in middle position when, oil liquid returns power source 1 by the road；When 3 position-5 way hand-operated direction valve 303 is in commutation position first or third
When position, oil liquid flows into steering cylinder 5, completes to turn to work.
Second oil pump 13, oil outlet connect the oil inlet of ratio switch valve control connection 12；Ratio switch valve control connection 12
Oil outlet with（Series connection）The oil inlets of two groups of ratio switch valves connect, first group of ratio switch valve 11 includes two-position four-way valve,
One, two of two-position four-way valve is connected to feeding motor 6, the rotation of feeding motor is controlled, in the oil return of feeding motor to fuel tank
Road is provided with check valve and throttle valve（Check valve is integrated in ratio switch valve first, sees that throttle valve is shown in 1101 in Fig. 4
1204 in Fig. 3）, check valve can slow down oil return buffering, and throttle valve can control oil return speed, and three cooperates, and guarantee to send
Expect that motor 6 works normally.
Second group of ratio switch valve 10 includes three-position four-way valve, one, three and 9 oil inlet of one-way throttle valve of three-position four-way valve
Mouth connection, one-way throttle valve 9 connect shut-off valve 8 and are followed by rear cover oil cylinder 7, and when system works, oil inlet is unidirectional from one-way throttle valve 9
Valve is directly entered rear cover oil cylinder, and when oil return is subtracted from the throttle valve oil return of one-way throttle valve 9 by adjusting throttle valve openings of sizes
Slow oil return buffers, and shut-off valve 8, which is closed, in circuit guarantees that rear cover oil cylinder 7 is not fallen after rise.
Second oil pump 13 is connected with ratio switch valve control connection 12, passes through the ratio of the difference of input pressure and return pressure
Compared with control system pressure is in stable state；As shown in figure 3, ratio switch valve control connection 12 is integrated with band spring non-return valve
1201, bi-bit bi-pass switch valve 1202, uniform-pressure-drop valve 1203 and throttle valve 1204.The fuel-displaced of second oil pump 13 leads to band bullet
Spring check valve 1201 and bi-bit bi-pass switch valve 1202；Band 1201 oil outlet of spring non-return valve respectively with first group of ratio switch valve
Group 11 and the oil inlet P mouth of second group of ratio switch valve group 10 connect, and 1202 spring cavity of bi-bit bi-pass switch valve and determine subtractive pressure
The connection of 1203 oil inlet of valve, 1203 oil outlet of uniform-pressure-drop valve is connected to hydraulic radiator oil inlet, at the same hydraulic radiator into
Hydraulic fluid port is connected to 1204 oil outlet of throttle valve, 1204 oil inlet of throttle valve and first group of ratio switch valve group 11 and second group of ratio
Switch the T mouth connection of valve group 10.In use, entering bi-bit bi-pass all the way after oil liquid enters ratio switch valve control connection 12 and switching
Valve 1202 controls epicoele, and another way oil liquid opens band spring non-return valve 1201, into first group of ratio switch valve 11 and second group
The main valve plug of ratio switch valve 10, in the course of work, oil liquid is led to bi-bit bi-pass through fixed orifice 1205 and opened by reflux oil liquid
1202 cavity of resorption of valve is closed, it is poor by 1202 liang of cavity pressures of bi-bit bi-pass switch valve, guarantee that system pressure is stablized, guarantees the normal work of system
Make.
Embodiment
A kind of working method of Self propelled silage harvest bundling machine：It includes ceding of Taiwan cutting ensiling stalks, chopping, feeding pressure
Tight forming, bundling etc., it is specific as follows：The engine start of Self propelled silage harvest bundling machine, when ensiling harvest bundling machine advances,
1 fuel feeding of power source, double-united oil pump（First oil pump 2 and the second oil pump 13）It starts to work, double-united oil pump is to entire hydraulic pressure system
System provides hydraulic oil, controls ceding of Taiwan oil by two-way valve group first via 3-position 4-way hand-operated direction valve 301, hydraulic control one-way valve 302
The speed of the lifting of the ceding of Taiwan is adjusted in the size of cylinder flow, controls steering cylinder by 3 position-5 way hand-operated direction valve 303
The steering when walking of 5 control ensiling harvest bundling machines, ensiling stalks are fed to by Verticle harvesting table and cut and be delivered up
To shredder mechanism, ensiling stalks are by shredder bar high speed rotation, and open first group of ratio switch valve 11, and feeding motor 6 drives
Material casting cylinder throws straw chopping into distribution cabins through material casting cylinder.Material constantly feeds distribution cabins, by after material toggling roller refining by object
Material be constantly delivered in working chamber, material by circular trace operating pressure roller formation it is intracavitary, by centrifugal force effect by by
It gradually compresses, enters bundling house when compression degree reaches the range of requirement setting, package silk screen operation is carried out to cylinder bundle, when beating
When bundle finishes, the rear cover oil cylinder 7 that second group of ratio switch valve 10 opens control bundling house is risen, bundled to be automatically drained out outside machine, complete
At a working cycles, then rear cover oil cylinder 7 is closed, and continues second circulation.
Claims (4)
1. a kind of hydraulic system of Self propelled silage harvest bundling machine, it is characterised in that：Power source including duplex hydraulic oil pump
（1）, duplex hydraulic oil pump is by the first oil pump（2）With the second oil pump（13）Composition, the first oil pump（2）For taiwan cut off and landing,
Flow needed for Vehicular turn provides work, the second oil pump（13）Flow needed for providing work for feeding motor, rear cover oil cylinder；
First oil pump（2）Oil outlet connects two-way valve group（3）Oil inlet, two-way valve group（3）Including 3-position 4-way hand
Dynamic reversal valve（301）With 3 position-5 way hand-operated direction valve（303）Wherein, 3-position 4-way hand-operated direction valve（301）First and third
Position oil outlet and ceding of Taiwan oil cylinder（4）Connection, 3-position 4-way hand-operated direction valve（301）With ceding of Taiwan oil cylinder（4）Connecting line in set
There is hydraulic control one-way valve（302）, oil liquid passes through hydraulic control one-way valve（302）Into ceding of Taiwan oil cylinder（4）, by entering ceding of Taiwan oil cylinder（4）Stream
The speed of the size control taiwan cut off and landing of amount；3 position-5 way hand-operated direction valve in two-way valve group（303）Oil outlet and steering
Oil cylinder（5）Oil inlet connection, controls Vehicular turn；
Second oil pump（13）Oil outlet and ratio switch valve control join（12）Oil inlet connect, ratio switch valve control
System connection（12）Oil outlet connect concatenated two groups of ratio switch valves；First group of ratio switch valve（11）Including two-position four-way valve, two
The oil inlet and feeding motor of position four-way valve（6）Oil inlet connection, by controlling feeding motor（6）Rotation control feeding amount,
Oil return line on be provided with the check valve for slowing down oil return buffering and throttle valve for controlling oil return speed；Second group of ratio
Example switch valve（10）Including three-position four-way valve, the oil inlet of three-position four-way valve successively connects one-way throttle valve（9）, shut-off valve（8）Afterwards
It is connected to rear cover oil cylinder（7）, rear cover oil cylinder（7）It is located at that the control of bundling house bottom end is bundled to be automatically drained out outside machine, directly from list when oil inlet
To throttle valve（9）Check valve enter rear cover oil cylinder, from one-way throttle valve when oil return（9）Throttle valve oil return, pass through adjust section
Valve openings of sizes is flowed, oil return buffering is slowed down, shut-off valve, which is closed, in circuit guarantees rear cover oil cylinder（7）It does not fall after rise.
2. a kind of hydraulic system of Self propelled silage harvest bundling machine according to claim 1, it is characterised in that：Two-way valve
Group（3）Oil inlet be equipped with direct-acting overflow valve（304）, when system pressure is higher than direct-acting overflow valve（304）The pressure of setting
When, direct-acting overflow valve（304）Spool open, oil liquid pass through overflow valve（304）Unload back power source（1）, when oil liquid by the road
Flow through 3-position 4-way hand-operated direction valve（301）Commutation position first when, hydraulic control one-way valve（302）It opens, oil liquid enters the ceding of Taiwan
Oil cylinder（4）, control cylinder action；When 3-position 4-way hand-operated direction valve（301）When commutating to third position, hydraulic control one-way valve（302）
It opens, ceding of Taiwan oil cylinder（4）It retracts；When 3-position 4-way hand-operated direction valve（301）With 3 position-5 way hand-operated direction valve（303）In being in
When position, oil liquid returns power source（1）；When 3 position-5 way hand-operated direction valve（303）When commutating position first or third position, oil liquid stream
Enter steering cylinder（5）, complete to turn to work.
3. a kind of hydraulic system of Self propelled silage harvest bundling machine according to claim 1, it is characterised in that：The ratio
Example switch valve control connection（12）It is integrated with band spring non-return valve（1201）, bi-bit bi-pass switch valve（1202）, uniform-pressure-drop valve
（1203）And throttle valve（1204）；Second oil pump（13）Oil outlet and ratio switch valve control 12 oil inlets of connection and be connected to, it is oily
Liquid is controlled through ratio switch valve to be joined（12）Oil liquid is led to band spring non-return valve by oil inlet（1201）Oil inlet and bi-bit bi-pass are opened
Close valve（1202）；Band spring non-return valve（1201）Oil outlet and first group of ratio switch valve group（11）With second group of ratio switch valve
Group（10）Oil inlet connect, bi-bit bi-pass switch valve（1202）Spring cavity and uniform-pressure-drop valve（1203）Oil inlet connection, it is fixed
Difference pressure-reducing valve（1203）Oil outlet is connected to hydraulic radiator oil inlet, while hydraulic radiator oil inlet and throttle valve（1204）
Oil outlet connection, throttle valve（1204）Oil inlet and first group of ratio switch valve group（11）With second group of ratio switch valve group（10）
T mouth connection；Oil liquid enters ratio switch valve control connection（12）Afterwards, enter bi-bit bi-pass switch valve all the way（1202）In control
Chamber, another way oil liquid open band spring non-return valve（1201）Into first group of ratio switch valve（11）With second group of ratio switch valve
（10）Main valve plug, flow back oil liquid through fixed orifice（1205）Oil liquid is led into bi-bit bi-pass switch valve（1202）Cavity of resorption leads to
Cross bi-bit bi-pass switch valve（1202）Two cavity pressure differences guarantee that system pressure systems stabilisation works normally.
4. the application of hydraulic system described in claim 3, it is characterised in that：Ensiling is harvested for Self propelled silage harvest bundling machine
Forage grass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810739185.6A CN108895045B (en) | 2018-07-06 | 2018-07-06 | Hydraulic system of self-propelled ensiling harvesting bundling machine and application thereof |
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| CN201810739185.6A CN108895045B (en) | 2018-07-06 | 2018-07-06 | Hydraulic system of self-propelled ensiling harvesting bundling machine and application thereof |
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| CN108895045B CN108895045B (en) | 2020-05-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110710386A (en) * | 2019-11-25 | 2020-01-21 | 济南大学 | Full-automatic ensiling equipment integral hydraulic system and control method |
| CN117948310A (en) * | 2024-03-25 | 2024-04-30 | 四平市顺邦农机制造有限公司 | Hydraulic system, hydraulic method and switching method of straw feed bundling machine |
| CN117948310B (en) * | 2024-03-25 | 2024-05-31 | 四平市顺邦农机制造有限公司 | Hydraulic system, hydraulic method and switching method of straw feed bundling machine |
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| CN108895045B (en) | 2020-05-08 |
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Denomination of invention: The hydraulic system and its application of a self-propelled silage harvesting and bundling machine Effective date of registration: 20230829 Granted publication date: 20200508 Pledgee: Industrial Bank Co.,Ltd. Lanzhou Branch Pledgor: GANSU MECHANICAL SCIENCE RESEARCH INSTITUTE CO.,LTD. Registration number: Y2023980054427 |
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