CN108443254A - A kind of adjustable mountainous region crawler tractor hydraulic system of posture - Google Patents
A kind of adjustable mountainous region crawler tractor hydraulic system of posture Download PDFInfo
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- CN108443254A CN108443254A CN201810423319.3A CN201810423319A CN108443254A CN 108443254 A CN108443254 A CN 108443254A CN 201810423319 A CN201810423319 A CN 201810423319A CN 108443254 A CN108443254 A CN 108443254A
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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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
Abstract
The invention belongs to technical field of hydraulic pressure, and in particular to a kind of adjustable mountainous region crawler tractor hydraulic system of posture.The present invention includes：Tractor left steering oil circuit, tractor right turn oil circuit, tractor left side side leveling oil circuit, tractor right side side leveling oil circuit, tractor fore-and-aft leveling oil circuit, tractor trifilar suspension left side oil circuit, tractor trifilar suspension right side oil circuit, agricultural equipment oil circuit, integrated package, check valve, engine, hydraulic pump, filter, hydraulic oil container, 2/2-way electromagnetic relief valve, sequence valve；The present invention provides one kind to be active in one's movements, easy to operate, arrange the adjustable mountainous region crawler tractor hydraulic system of convenient posture, meet the requirement of tractor mountainous region operation, pose adjustment, steering and the agricultural machinery and implement operation for realizing mountainous region crawler tractor, improve the safety and reliability of the work of mountainous region crawler tractor.
Description
Technical field
The invention belongs to technical field of hydraulic pressure, and in particular to a kind of adjustable mountainous region crawler tractor hydraulic pressure system of posture
System.
Background technology
China is vast in territory, and wherein hills and mountainous region area is vast, and this kind of area is with a varied topography, the gradient is big, road surface is not advised
It is whole.When agricultural traction engine is in this area's operation, due to the sidesway of center of gravity, causes both sides track adhesion different, easily occur
The danger tumbled.In recent years, the agricultural crawler tractor of the support with country to agriculture field, China is quickly grown.But
It is directed to hilly and mountainous land area and meets the job requirements on hills, mountainous region area at present there is no suitable crawler tractor.Cause
This, it is dilatory there is an urgent need to develop a kind of hills, simple, safe and reliable adjustable crawler belt of posture of manipulation in mountainous region of being adapted to
Machine improves the level of farming mechanization in China's hilly and mountainous land area.
Since the adjustable mountainous region crawler tractor of posture is complicated, the adjustment of simple mechanical mechanism at present cannot achieve
The pose adjustment of tractor meets the requirement of hillside tractor operation.And hydraulic transmission has compared with mechanical driving device
Have that inertia is small, be active in one's movements, arranges the advantages of convenient, manoeuvrable, is easy to implement the pose adjustment of tractor.Therefore, urgently
It needs to invent a kind of adjustable mountainous region crawler tractor hydraulic system of posture, meets the adjustable mountainous region crawler tractor of posture
The requirement of farm work.
Invention content
The object of the present invention is to provide one kind to be active in one's movements, easy to operate, arranges the adjustable mountainous region of convenient posture
Crawler tractor hydraulic system meets the requirement of tractor mountainous region operation, realizes the pose adjustment of mountainous region crawler tractor, turns to
And agricultural machinery and implement operation, improve the safety and reliability of the work of mountainous region crawler tractor.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of adjustable mountainous region crawler tractor hydraulic system of posture comprising：Tractor left steering oil circuit, tractor
Right turn oil circuit, side leveling oil circuit on the left of tractor, side leveling oil circuit on the right side of tractor, tractor fore-and-aft leveling oil circuit,
Oil circuit, tractor trifilar suspension right side oil circuit, agricultural equipment oil circuit, integrated package, check valve, hair on the left of tractor trifilar suspension
Motivation, hydraulic pump, filter, hydraulic oil container, 2/2-way electromagnetic relief valve, sequence valve；
Tractor left steering oil circuit includes：Single-action hydraulic cylinder one and two-bit triplet solenoid valve one；Two-bit triplet solenoid valve
One connect with single-action hydraulic cylinder one, and two-bit triplet solenoid valve one is connect with the in-line P of integrated package and oil return line T respectively；
Tractor right turn oil circuit includes：Single-action hydraulic cylinder two and two-bit triplet solenoid valve two；Two-bit triplet solenoid valve
Two connect with single-action hydraulic cylinder two, and two-bit triplet solenoid valve two is connect with the in-line P of integrated package and oil return line T respectively；
Side leveling oil circuit includes on the left of tractor：Double acting hydraulic cylinder one, one-way speed-regulating valve one, one-way speed-regulating valve two,
Hydraulic control one-way valve one and three position four-way electromagnetic valve one；The A mouths of three position four-way electromagnetic valve one are connect with hydraulic control one-way valve one, hydraulic control list
It is connect to valve one with one-way speed-regulating valve one, one-way speed-regulating valve two, one-way speed-regulating valve one and the rodless cavity of double acting hydraulic cylinder one connect
It connects, the rod chamber of double acting hydraulic cylinder one is connect with one-way speed-regulating valve two, the B of one-way speed-regulating valve two and three position four-way electromagnetic valve one
Mouth connection；
Side leveling oil circuit includes on the right side of tractor：Double acting hydraulic cylinder two, one-way speed-regulating valve three, one-way speed-regulating valve four,
Hydraulic control one-way valve two and three position four-way electromagnetic valve two；The A mouths of three position four-way electromagnetic valve two are connect with hydraulic control one-way valve two, hydraulic control list
It is connect to valve two with one-way speed-regulating valve three, one-way speed-regulating valve four, one-way speed-regulating valve three and the rodless cavity of double acting hydraulic cylinder two connect
It connects, the rod chamber of double acting hydraulic cylinder two is connect with one-way speed-regulating valve four, the B of one-way speed-regulating valve four and three position four-way electromagnetic valve two
Mouth connection；
Tractor fore-and-aft leveling oil circuit includes：Double acting hydraulic cylinder three, double acting hydraulic cylinder four, flow divider, unidirectional speed governing
Valve five, one-way speed-regulating valve six, hydraulic control one-way valve three and three position four-way electromagnetic valve three；The A mouths of three position four-way electromagnetic valve three and hydraulic control
Check valve three connects, and hydraulic control one-way valve three is connect with one-way speed-regulating valve five, one-way speed-regulating valve six, one-way speed-regulating valve five and shunting
Valve, flow divider are connect with the rodless cavity of double acting hydraulic cylinder three and double acting hydraulic cylinder four, double acting hydraulic cylinder three and double acting
The rod chamber of hydraulic cylinder four is connect with one-way speed-regulating valve six, and one-way speed-regulating valve six is connect with the B of three position four-way electromagnetic valve three mouths；
Oil circuit includes on the left of tractor trifilar suspension：Double acting hydraulic cylinder five, one-way speed-regulating valve seven, one-way speed-regulating valve eight,
Hydraulic control one-way valve four and three position four-way electromagnetic valve four；The A mouths of three position four-way electromagnetic valve four and hydraulic control one-way valve four, hydraulic control one-way valve
Four connect with one-way speed-regulating valve seven and one-way speed-regulating valve eight, and one-way speed-regulating valve seven is connect with the rodless cavity of double acting hydraulic cylinder five,
The rod chamber of double acting hydraulic cylinder five is connect with one-way speed-regulating valve eight, the B mouths of one-way speed-regulating valve eight and three position four-way electromagnetic valve four
Connection；
Oil circuit includes on the right side of tractor trifilar suspension：Double acting hydraulic cylinder six, one-way speed-regulating valve nine, one-way speed-regulating valve ten,
Hydraulic control one-way valve five and three position four-way electromagnetic valve five；The A mouths of three position four-way electromagnetic valve five and hydraulic control one-way valve five, hydraulic control one-way valve
Five connect with one-way speed-regulating valve nine and one-way speed-regulating valve ten, and one-way speed-regulating valve nine is connect with the rodless cavity of double acting hydraulic cylinder six,
The rod chamber of double acting hydraulic cylinder six is connect with one-way speed-regulating valve ten, the B mouths of one-way speed-regulating valve ten and three position four-way electromagnetic valve five
Connection；
Agricultural equipment oil circuit includes：Quick coupling one, quick coupling two, one-way speed-regulating valve 11, one-way speed-regulating valve ten
Two, three position four-way electromagnetic valve six；The A mouths of three position four-way electromagnetic valve six are connect with one-way speed-regulating valve 11, one-way speed-regulating valve 11
It is connect with quick coupling one；The B mouths of three position four-way electromagnetic valve six are connect with one-way speed-regulating valve 12, one-way speed-regulating valve 12 with it is fast
Quick coupling two connects；
The oil inlet of hydraulic pump is connect with filter, and oil outlet is connect with check valve；Between hydraulic pump and check valve, left side
Road is connect with 2/2-way electromagnetic relief valve input terminal；2/2-way electromagnetic relief valve output end is connected with hydraulic tank；
Two-bit triplet solenoid valve one, two-bit triplet solenoid valve two, three position four-way electromagnetic valve one, three position four-way electromagnetic valve two,
Three position four-way electromagnetic valve three, three position four-way electromagnetic valve four, three position four-way electromagnetic valve five, three position four-way electromagnetic valve six oil inlet and
Oil return opening is connect with the in-line P of integrated package and oil return line T respectively；
Three position four-way electromagnetic valve one, three position four-way electromagnetic valve two, three position four-way electromagnetic valve three, three position four-way electromagnetic valve four,
Three position four-way electromagnetic valve five, three position four-way electromagnetic valve six are O-shaped middle position three-position four-way electromagnetic directional valve.
The beneficial effects of the present invention are：
The present invention is a kind of adjustable crawler tractor hydraulic system of hilly and mountainous land posture, passes through electromagnetism in hydraulic system
Adjustment, steering and the farm implements operation of tractor posture are realized in the control of valve.
Description of the drawings
Fig. 1 is the schematic diagram of the adjustable mountainous region crawler tractor hydraulic system of posture of the present invention
Wherein reference numeral is：
1-1 single-action hydraulic cylinders one；1-2 two-bit triplets solenoid valve one；2-1 single-action hydraulic cylinders two；2-2 two-bit triplet electricity
Magnet valve two；3-1 double acting hydraulic cylinders one；3-2 one-way speed-regulating valves one；3-3, one-way speed-regulating valve two；3-4 hydraulic control one-way valves one；3-5
Three position four-way electromagnetic valve one；4-1 double acting hydraulic cylinders two；4-2 one-way speed-regulating valves three；4-3 one-way speed-regulating valves four；4-4 hydraulic control lists
To valve two；4-5 three position four-way electromagnetic valves two；5-1 double acting hydraulic cylinders three；5-2 double acting hydraulic cylinders four；5-3 flow dividers；5-4
One-way speed-regulating valve five；5-5 one-way speed-regulating valves six；5-6 hydraulic control one-way valves three；5-7 three position four-way electromagnetic valves three；6-1 double acting liquid
Cylinder pressure five；6-2 one-way speed-regulating valves seven；6-3 one-way speed-regulating valves eight；6-4 hydraulic control one-way valves four；6-5 three position four-way electromagnetic valves four；7-
1 double acting hydraulic cylinder six；7-2 one-way speed-regulating valves nine；7-3 one-way speed-regulating valves ten；7-4 hydraulic control one-way valves five；7-5 3-position 4-way electricity
Magnet valve five；8-1 quick couplings one；8-2 quick couplings two；8-3 one-way speed-regulating valves 11；8-4 one-way speed-regulating valves 12；8-5 tri-
Position four-way solenoid valve six；9 integrated packages；10 check valves；11 engines；12 hydraulic pumps；13 filters；14 hydraulic oil containers；15 two
Two logical electromagnetic relief valves；16 sequence valves
Specific implementation mode：
The present invention provides a kind of adjustable mountainous region crawler tractor hydraulic systems of posture.Below in conjunction with the accompanying drawings and specifically
Clear, complete description that embodiment technical solution in the embodiment of the present invention carries out, elaborates very in the following description
More details, in order to fully understand the present invention.
A kind of adjustable mountainous region crawler tractor hydraulic system of posture comprising：Tractor left steering oil circuit, tractor
Right turn oil circuit, side leveling oil circuit on the left of tractor, side leveling oil circuit on the right side of tractor, tractor fore-and-aft leveling oil circuit,
Oil circuit, tractor trifilar suspension right side oil circuit, agricultural equipment oil circuit, integrated package 9, check valve on the left of tractor trifilar suspension
10, engine 11, hydraulic pump 12, filter 13, hydraulic oil container 14,2/2-way electromagnetic relief valve 15, sequence valve 16；
Tractor left steering oil circuit includes：One 1-2 of one 1-1 of single-action hydraulic cylinder and two-bit triplet solenoid valve；Two-bit triplet
One 1-2 of solenoid valve is connect with one 1-2 of single-action hydraulic cylinder, and one 1-2 of single-action hydraulic cylinder is turned to the left for realizing tractor, and two
One 1-2 of position-3-way solenoid valve is connect with the in-line P of integrated package 9 and oil return line T respectively；
Tractor right turn oil circuit includes：Two 2-2 of two 2-1 of single-action hydraulic cylinder and two-bit triplet solenoid valve；Two-bit triplet
Two 2-2 of solenoid valve is connect with two 2-1 of single-action hydraulic cylinder, and two 2-1 of single-action hydraulic cylinder is turned to the right for realizing tractor, and two
Two 2-2 of position-3-way solenoid valve is connect with the in-line P of integrated package 9 and oil return line T respectively；
Side leveling oil circuit includes on the left of tractor：One 3-1 of double acting hydraulic cylinder, one 3-2 of one-way speed-regulating valve, unidirectional speed governing
One 3-5 of two 3-3 of valve, one 3-4 of hydraulic control one-way valve and three position four-way electromagnetic valve；The A mouths of one 3-5 of three position four-way electromagnetic valve and hydraulic control list
To one 3-4 connections of valve, one 3-4 of hydraulic control one-way valve is connect with one 3-2 of one-way speed-regulating valve, two 3-3 of one-way speed-regulating valve, one-way speed-regulating valve
One 3-2 is connect with the rodless cavity of one 3-1 of double acting hydraulic cylinder, rod chamber and the one-way speed-regulating valve two of one 3-1 of double acting hydraulic cylinder
3-3 connections, two 3-3 of one-way speed-regulating valve are connect with the B mouths of one 3-5 of three position four-way electromagnetic valve；One 3-2 of one-way speed-regulating valve and list are set
Purpose to two 3-3 of speed governing valve is to control flow speed for convenience, and the purpose of one 3-4 of setting hydraulic control one-way valve is in order to unidirectional
Pressurize.
Side leveling oil circuit includes on the right side of tractor：Two 4-1 of double acting hydraulic cylinder, three 4-2 of one-way speed-regulating valve, unidirectional speed governing
Two 4-5 of four 4-3 of valve, two 4-4 of hydraulic control one-way valve and three position four-way electromagnetic valve；The A mouths of two 4-5 of three position four-way electromagnetic valve and hydraulic control list
To two 4-4 connections of valve, two 4-4 of hydraulic control one-way valve is connect with three 4-2 of one-way speed-regulating valve, four 4-3 of one-way speed-regulating valve, one-way speed-regulating valve
Three 4-2 are connect with the rodless cavity of two 4-1 of double acting hydraulic cylinder, rod chamber and the one-way speed-regulating valve four of two 4-1 of double acting hydraulic cylinder
4-3 connections, four 4-3 of one-way speed-regulating valve are connect with the B mouths of two 4-5 of three position four-way electromagnetic valve；Three 4-2 of one-way speed-regulating valve and list are set
Purpose to four 4-3 of speed governing valve is to control flow speed for convenience, and the purpose of two 4-4 of setting hydraulic control one-way valve is in order to unidirectional
Pressurize.
Tractor fore-and-aft leveling oil circuit includes：Three 5-1 of double acting hydraulic cylinder, four 5-2 of double acting hydraulic cylinder, flow divider 5-3,
Five 5-4 of one-way speed-regulating valve, three 5-7 of six 5-5 of one-way speed-regulating valve, three 5-6 of hydraulic control one-way valve and three position four-way electromagnetic valve；3-position 4-way
The A mouths of three 5-7 of solenoid valve are connect with three 5-6 of hydraulic control one-way valve, three 5-6 of hydraulic control one-way valve and five 5-4 of one-way speed-regulating valve, unidirectional tune
The six 5-5 connections of fast valve, five 5-4 of one-way speed-regulating valve and flow divider 5-3, flow divider 5-3 and three 5-1 of double acting hydraulic cylinder and double acting
The rodless cavity of four 5-2 of hydraulic cylinder connects, and the rod chamber of four 5-2 of three 5-1 of double acting hydraulic cylinder and double acting hydraulic cylinder is adjusted with unidirectional
The six 5-5 connections of fast valve, six 5-5 of one-way speed-regulating valve are connect with the B mouths of three 5-7 of three position four-way electromagnetic valve；One-way speed-regulating valve five is set
The purpose of six 5-5 of 5-4 and one-way speed-regulating valve is that control flow speed, the purpose of three 5-6 of setting hydraulic control one-way valve are for convenience
For one-way pressure maintaining；
Oil circuit includes on the left of tractor trifilar suspension：Five 6-1 of double acting hydraulic cylinder, seven 6-2 of one-way speed-regulating valve, unidirectional speed governing
Four 6-5 of eight 6-3 of valve, four 6-4 of hydraulic control one-way valve and three position four-way electromagnetic valve；The A mouths of four 6-5 of three position four-way electromagnetic valve and hydraulic control list
To four 6-4 of valve, four 6-4 of hydraulic control one-way valve is connect with seven 6-2 of one-way speed-regulating valve and eight 6-3 of one-way speed-regulating valve, one-way speed-regulating valve seven
6-2 is connect with the rodless cavity of five 6-1 of double acting hydraulic cylinder, rod chamber and eight 6-3 of one-way speed-regulating valve of five 6-1 of double acting hydraulic cylinder
Connection, eight 6-3 of one-way speed-regulating valve are connect with the B mouths of four 6-5 of three position four-way electromagnetic valve；Seven 6-2 of one-way speed-regulating valve and unidirectional is set
The purpose of eight 6-3 of speed governing valve is to control flow speed for convenience, and the purpose of four 6-4 of setting hydraulic control one-way valve is to unidirectionally protect
Pressure；
Oil circuit includes on the right side of tractor trifilar suspension：Six 7-1 of double acting hydraulic cylinder, nine 7-2 of one-way speed-regulating valve, unidirectional speed governing
Five 7-5 of ten 7-3 of valve, five 7-4 of hydraulic control one-way valve and three position four-way electromagnetic valve；The A mouths of five 7-5 of three position four-way electromagnetic valve and hydraulic control list
To five 7-4 of valve, five 7-4 of hydraulic control one-way valve is connect with nine 7-2 of one-way speed-regulating valve and ten 7-3 of one-way speed-regulating valve, one-way speed-regulating valve nine
7-2 is connect with the rodless cavity of six 7-1 of double acting hydraulic cylinder, rod chamber and ten 7-3 of one-way speed-regulating valve of six 7-1 of double acting hydraulic cylinder
Connection, ten 7-3 of one-way speed-regulating valve are connect with the B mouths of five 7-5 of three position four-way electromagnetic valve；Nine 7-2 of one-way speed-regulating valve and unidirectional is set
The purpose of ten 7-3 of speed governing valve is to control flow speed for convenience, and the purpose of five 7-4 of setting hydraulic control one-way valve is to unidirectionally protect
Pressure；
Agricultural equipment oil circuit includes：It is one 8-1 of quick coupling, two 8-2 of quick coupling, 11 8-3 of one-way speed-regulating valve, unidirectional
12 8-4 of speed governing valve, six 8-5 of three position four-way electromagnetic valve；The A mouths of six 8-5 of three position four-way electromagnetic valve and 11 8-3 of one-way speed-regulating valve
Connection, 11 8-3 of one-way speed-regulating valve are connect with one 8-1 of quick coupling；The B mouths of six 8-5 of three position four-way electromagnetic valve and unidirectional speed governing
12 8-4 connections of valve, 12 8-4 of one-way speed-regulating valve are connect with two 8-2 of quick coupling；The purpose that quick coupling is arranged is for side
Just it is quickly connect with the farm implements of hydraulic power are needed；
12 power intake of hydraulic pump is connect with the power taking mouth of engine 11, and oil inlet and the filter 13 of hydraulic pump 12 connect
It connects, oil outlet is connect with check valve 10；Between hydraulic pump 12 and check valve 10, left bypass is defeated with 2/2-way electromagnetic relief valve 15
Enter end connection；15 output end of 2/2-way electromagnetic relief valve is connect with hydraulic oil container 14.Because hillside tractor pose adjustment with
And the work such as steering, actuation time is short, and discharge time is long, therefore, in order to reduce system heat generation amount, 2/2-way electromagnetism is selected to overflow
Flow valve 15, electromagnet power-off, system unloaded, electromagnet energization, internal control load；
The purpose that check valve 10 is arranged is to when system pressure is loaded and increased suddenly, the oil of hydraulic system be prevented to flow backwards
And damage hydraulic pump 12；
Sequence valve 16 is connect with integrated package 9, and sequence valve 16 is guide type sequence valve, and sequence pressure can be adjusted；
One 1-2 of two-bit triplet solenoid valve, two 2-2 of two-bit triplet solenoid valve, one 3-5 of three position four-way electromagnetic valve, 3-position 4-way
Two 4-5 of solenoid valve, three 5-7 of three position four-way electromagnetic valve, four 6-5 of three position four-way electromagnetic valve, five 7-5 of three position four-way electromagnetic valve, three
The oil inlet and oil return opening of six 8-5 of four way solenoid valve is connect with the in-line P of integrated package and oil return line T respectively；
One 3-5 of three position four-way electromagnetic valve, two 4-5 of three position four-way electromagnetic valve, three 5-7 of three position four-way electromagnetic valve, 3-position 4-way
Four 6-5 of solenoid valve, five 7-5 of three position four-way electromagnetic valve, six 8-5 of three position four-way electromagnetic valve are that O-shaped middle position 3-position 4-way electromagnetism changes
To valve.
The course of work：
System starts：2/2-way electromagnetic relief valve 15 obtains electric, startup engine 11, to drive hydraulic pump 12 to rotate,
Make system pressurize；
Tractor left steering, right turn and braking：One 1-2 of two-bit triplet solenoid valve obtains electric, and fluid enters single-acting hydraulic
One 1-1 of cylinder is realized and is turned on the left of tractor to drive the action of left side steering mechanism；Two 2-2 of two-bit triplet solenoid valve obtain it is electric,
Fluid enters two 2-1 of single-action hydraulic cylinder, to drive right hand steering mechanism action, realizes tractor right hand steering；Two three
One 1-2 of three-way electromagnetic valve and two 2-2 of two-bit triplet solenoid valve simultaneously must be electric, to realize one 1-1 of single-action hydraulic cylinder and single-acting
Two 2-1 of hydraulic cylinder is acted simultaneously, is realized that left side steering mechanism and right hand steering mechanism act simultaneously, is realized tractor braking；
Side leveling and right side side leveling on the left of tractor：Electric or right side is obtained on the left of one 3-5 of three position four-way electromagnetic valve
Electric, realization double acting hydraulic cylinder one 3-1 actions are obtained, to realize levelling mechanism action on the left of tractor, realization tractor left side
The adjustment of posture；Electric or right side is obtained on the left of two 4-5 of three position four-way electromagnetic valve obtains electric, realization double acting hydraulic cylinder two 4-1 actions,
To realize levelling mechanism action on the right side of tractor, the adjustment of posture on the right side of tractor is realized；
Tractor fore-and-aft leveling：Electric, realization pair is obtained by adjusting electric or right side is obtained on the left of three 5-7 of three position four-way electromagnetic valve
Three 5-1 of acting cylinder and four 5-2 of double acting hydraulic cylinder are acted simultaneously, and to tractor fore-and-aft leveling mechanism action, realization is dragged
The adjustment of machine drawing longitudinal attitude；
Tractor trifilar suspension adjusts：By adjusting separately four 6-5 of three position four-way electromagnetic valve and three position four-way electromagnetic valve five
Electric or right side is obtained on the left of 7-5 obtains electric, control five 6-1 of double acting hydraulic cylinder and double acting hydraulic cylinder six 7-1 actions respectively, to
The action of tractor trifilar suspension left and right sides hoisting mechanism is realized respectively, realizes the adjustment of tractor farm tools height and angle；
Agricultural equipment：One 8-1 of quick coupling and two 8-2 of quick coupling carries out mating connection for quick and farm implements.
The structure and working principle of the present invention is explained with specific embodiment above, the invention is not limited in the above realities
Apply example, according to above-mentioned description, all within the spirits and principles of the present invention made by it is any modification, replace and improve
Deng should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of adjustable mountainous region crawler tractor hydraulic system of posture comprising：Tractor left steering oil circuit, tractor are right
It turns to oil circuit, tractor left side side leveling oil circuit, tractor right side side leveling oil circuit, tractor fore-and-aft leveling oil circuit, drag
Machine drawing trifilar suspension left side oil circuit, agricultural equipment oil circuit, integrated package, check valve, starts tractor trifilar suspension right side oil circuit
Machine, hydraulic pump, filter, hydraulic oil container, 2/2-way electromagnetic relief valve, sequence valve；
It is characterized in that：
The tractor left steering oil circuit includes：Single-action hydraulic cylinder one and two-bit triplet solenoid valve one；Two-bit triplet solenoid valve
One connect with single-action hydraulic cylinder one, and two-bit triplet solenoid valve one is connect with the in-line P of integrated package and oil return line T respectively；
The tractor right turn oil circuit includes：Single-action hydraulic cylinder two and two-bit triplet solenoid valve two；Two-bit triplet solenoid valve
Two connect with single-action hydraulic cylinder two, and two-bit triplet solenoid valve two is connect with the in-line P of integrated package and oil return line T respectively；
Side leveling oil circuit includes on the left of the tractor：Double acting hydraulic cylinder one, one-way speed-regulating valve one, one-way speed-regulating valve two,
Hydraulic control one-way valve one and three position four-way electromagnetic valve one；The A mouths of three position four-way electromagnetic valve one are connect with hydraulic control one-way valve one, hydraulic control list
It is connect to valve one with one-way speed-regulating valve one, one-way speed-regulating valve two, one-way speed-regulating valve one and the rodless cavity of double acting hydraulic cylinder one connect
It connects, the rod chamber of double acting hydraulic cylinder one is connect with one-way speed-regulating valve two, the B of one-way speed-regulating valve two and three position four-way electromagnetic valve one
Mouth connection；
Side leveling oil circuit includes on the right side of the tractor：Double acting hydraulic cylinder two, one-way speed-regulating valve three, one-way speed-regulating valve four,
Hydraulic control one-way valve two and three position four-way electromagnetic valve two；The A mouths of three position four-way electromagnetic valve two are connect with hydraulic control one-way valve two, hydraulic control list
It is connect to valve two with one-way speed-regulating valve three, one-way speed-regulating valve four, one-way speed-regulating valve three and the rodless cavity of double acting hydraulic cylinder two connect
It connects, the rod chamber of double acting hydraulic cylinder two is connect with one-way speed-regulating valve four, the B of one-way speed-regulating valve four and three position four-way electromagnetic valve two
Mouth connection；
The tractor fore-and-aft leveling oil circuit includes：Double acting hydraulic cylinder three, double acting hydraulic cylinder four, flow divider, unidirectional speed governing
Valve five, one-way speed-regulating valve six, hydraulic control one-way valve three and three position four-way electromagnetic valve three；The A mouths of three position four-way electromagnetic valve three and hydraulic control
Check valve three connects, and hydraulic control one-way valve three is connect with one-way speed-regulating valve five, one-way speed-regulating valve six, one-way speed-regulating valve five and shunting
Valve, flow divider are connect with the rodless cavity of double acting hydraulic cylinder three and double acting hydraulic cylinder four, double acting hydraulic cylinder three and double acting
The rod chamber of hydraulic cylinder four is connect with one-way speed-regulating valve six, and one-way speed-regulating valve six is connect with the B of three position four-way electromagnetic valve three mouths；
Oil circuit includes on the left of the tractor trifilar suspension：Double acting hydraulic cylinder five, one-way speed-regulating valve seven, one-way speed-regulating valve eight,
Hydraulic control one-way valve four and three position four-way electromagnetic valve four；The A mouths of three position four-way electromagnetic valve four and hydraulic control one-way valve four, hydraulic control one-way valve
Four connect with one-way speed-regulating valve seven and one-way speed-regulating valve eight, and one-way speed-regulating valve seven is connect with the rodless cavity of double acting hydraulic cylinder five,
The rod chamber of double acting hydraulic cylinder five is connect with one-way speed-regulating valve eight, the B mouths of one-way speed-regulating valve eight and three position four-way electromagnetic valve four
Connection；
Oil circuit includes on the right side of the tractor trifilar suspension：Double acting hydraulic cylinder six, one-way speed-regulating valve nine, one-way speed-regulating valve ten,
Hydraulic control one-way valve five and three position four-way electromagnetic valve five；The A mouths of three position four-way electromagnetic valve five and hydraulic control one-way valve five, hydraulic control one-way valve
Five connect with one-way speed-regulating valve nine and one-way speed-regulating valve ten, and one-way speed-regulating valve nine is connect with the rodless cavity of double acting hydraulic cylinder six,
The rod chamber of double acting hydraulic cylinder six is connect with one-way speed-regulating valve ten, the B mouths of one-way speed-regulating valve ten and three position four-way electromagnetic valve five
Connection；
The agricultural equipment oil circuit includes：Quick coupling one, quick coupling two, one-way speed-regulating valve 11, one-way speed-regulating valve ten
Two, three position four-way electromagnetic valve six；The A mouths of three position four-way electromagnetic valve six are connect with one-way speed-regulating valve 11, one-way speed-regulating valve 11
It is connect with quick coupling one；The B mouths of three position four-way electromagnetic valve six are connect with one-way speed-regulating valve 12, one-way speed-regulating valve 12 with
Quick coupling two connects；
The oil inlet of the hydraulic pump is connect with filter, and oil outlet is connect with check valve；Between hydraulic pump and check valve, left side
Road is connect with 2/2-way electromagnetic relief valve input terminal；2/2-way electromagnetic relief valve output end is connected with hydraulic tank；
The two-bit triplet solenoid valve one, two-bit triplet solenoid valve two, three position four-way electromagnetic valve one, three position four-way electromagnetic valve two,
Three position four-way electromagnetic valve three, three position four-way electromagnetic valve four, three position four-way electromagnetic valve five, three position four-way electromagnetic valve six oil inlet and
Oil return opening is connect with the in-line P of integrated package and oil return line T respectively；
The three position four-way electromagnetic valve one, three position four-way electromagnetic valve two, three position four-way electromagnetic valve three, three position four-way electromagnetic valve four,
Three position four-way electromagnetic valve five, three position four-way electromagnetic valve six are O-shaped middle position three-position four-way electromagnetic directional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810423319.3A CN108443254A (en) | 2018-05-06 | 2018-05-06 | A kind of adjustable mountainous region crawler tractor hydraulic system of posture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810423319.3A CN108443254A (en) | 2018-05-06 | 2018-05-06 | A kind of adjustable mountainous region crawler tractor hydraulic system of posture |
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| Publication Number | Publication Date |
|---|---|
| CN108443254A true CN108443254A (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810423319.3A Pending CN108443254A (en) | 2018-05-06 | 2018-05-06 | A kind of adjustable mountainous region crawler tractor hydraulic system of posture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999820A (en) * | 2018-08-27 | 2018-12-14 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of soft wall coordinated control system of wind-tunnel and method |
-
2018
- 2018-05-06 CN CN201810423319.3A patent/CN108443254A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999820A (en) * | 2018-08-27 | 2018-12-14 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of soft wall coordinated control system of wind-tunnel and method |
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Application publication date: 20180824 |