CN101850722B - Hydraulic driven remote control tractor - Google Patents
Hydraulic driven remote control tractor Download PDFInfo
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- CN101850722B CN101850722B CN 201010140506 CN201010140506A CN101850722B CN 101850722 B CN101850722 B CN 101850722B CN 201010140506 CN201010140506 CN 201010140506 CN 201010140506 A CN201010140506 A CN 201010140506A CN 101850722 B CN101850722 B CN 101850722B
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Abstract
The invention discloses a hydraulic driven remote control tractor. A control system of the tractor adopts a method for controlling a hydraulic motor by combining a singlechip and an electromagnetic valve to realize real-time and flexible control of travel direction and speed of the tractor. Two oil pumps supply hydraulic pressure to a driving hydraulic motor of the tractor and a working hydraulic motor for driving an agricultural implement respectively so as to solve the problem that a single oil pump supplies insufficient hydraulic pressure to the driving hydraulic motor of the tractor and the working hydraulic motor for driving the agricultural implement.
Description
Technical field
The present invention relates to a kind of remote control tractor, relate in particular to a kind of hydraulic driven remote control tractor.
Background technology
The running gear of farm tractor in the market generally adopts mechanical driving speed changing box and steering hardware; but complicated, effort that the mechanical transmission change speed gear box is handled; and need often gearshift, commutation during the trac. operation; finish a working cycle; usually need to repeatedly shift gears and commutate; greatly reduce operability, alerting ability and the traveling comfort of machinery, increased the labour intensity of navigating mate, reduced operating efficiency.
Summary of the invention
The purpose of this invention is to provide a kind of stepless change, flexible operation, hydraulically powered remote control tractor that operating efficiency is high.
The technical scheme that realizes the foregoing invention purpose is: a kind of hydraulic driven remote control tractor, comprise frame, track adjusting wheel, drive wheel, water tank, diesel engine, storage battery, controller, hydraulic reservoir, described track adjusting wheel and drive wheel are installed in the both sides, following front and back of frame, track adjusting wheel is connected crawler belt with drive wheel and is connected, state the centre that water tank, diesel engine, hydraulic reservoir are installed in frame successively, between diesel engine and the water tank centrifugal pump is installed, between hydraulic reservoir and the diesel engine gear case is installed; The driving wheel that the power wheel of described centrifugal pump is connected with gear case by belt and the power wheel of diesel engine is connected, and water tank, centrifugal pump, cooling vessel are interconnected by water pipe, it is characterized in that:
Described hydraulic reservoir is connected with the operation oil pump be connected with driven gear of walking oil pump on the driving wheel that is installed in gear case respectively by oil pipe,
Also be provided with intermediate drive gear in the described gear case and be used for controlling the shift fork that intermediate drive gear is shifted;
Described HM Hydraulic Motor has two to be installed in respectively on the left and right driving wheel;
Described cooling vessel be installed in hydraulic oil pipe around;
Described walking oil pump is connected with two HM Hydraulic Motor by the walking pressure distributor, and is connected with the oil cylinder of control agricultural implement mounting lifting;
Described operation oil pump is connected with the HM Hydraulic Motor that drives farm implements work by the operation pressure distributor;
Described controller is comprised of the remote controller that transmits, wireless receiving circuit, decoding circuit, micro controller system, driving circuit, relay.
Described walking pressure distributor is comprised of 4 solenoid directional control valves, 4 electromagnetic speed-adjusting valves and a by pass valve and a flow regulating valve.
Described operation distributing box is comprised of reducing valve and governor valve.
Between walking pressure distributor and hoist cylinder, control cock is installed.
The principle of work of hydraulic driven remote control tractor of the present invention:
Behind the diesel engine starting of trac., the driving gear in the driven gear case rotates, and driving gear drives the walking oil pump and provides hydraulic pressure to the walking pressure distributor.Remote controller sends signal, the signal of the transmission that wireless receiving circuit will receive is sent to decoding circuit, decoding circuit is sent to micro controller system with signal after signal is decoded, micro controller system is sent to driving circuit with signal after signal is processed, the driving circuit starting relay is controlled the hydraulic oil flow direction, pressure and flow to solenoid directional control valve and the electromagnetic speed-adjusting valve of walking pressure distributor, control tractor hydraulic motor rotary speed and turning to, thus the lifting of direction of travel and the speed of travel and the farm implements of trac. controlled.
When farm implements will be worked, the shift fork of gear case top is turned to, make the engagement of intermediate drive gear and driven gear, drive intermediate drive gear by driving gear and drive the driven gear rotation, driven gear rotates drive operation oil pump and provides hydraulic pressure to the operation pressure distributor, by the intensity of Manual adjustment pressure reducing valve and governor valve control farm implements work motor.
Diesel engine drives centrifugal pump work, accelerates water circulation, and water cooling system is started working, and hydraulic oil is carried out water cooling, reduces hydraulic fluid temperature, guarantees the normal operation of trac. and farm implements.
Compared with prior art, hydraulic driven remote control tractor of the present invention has the following advantages:
1) control system of trac. has adopted micro controller system and electromagnetic valve to combine and has controlled the method for HM Hydraulic Motor, has realized real-time, flexibly control to trac. direction of travel and speed.
2) provide hydraulic pressure to the driving HM Hydraulic Motor of trac. and the working hydraulic pressure motor of drive farm implements respectively by two oil pumps, solved the problem that the hydraulic pressure deficiency is provided to the working hydraulic pressure motor of the driving HM Hydraulic Motor of trac. and drive farm implements by single oil pump.
3) hydraulic oil is carried out water cooling, solved the problem of the too high impact normal operation of hydraulic oil oil temperature in the working process.
Description of drawings
Fig. 1 is the structural representation of hydraulic driven remote control tractor of the present invention.
Fig. 2 is the structural representation of the walking pressure distributor of hydraulic driven remote control tractor of the present invention.
Fig. 3 is the structural representation of the operation distributing box of hydraulic driven remote control tractor of the present invention.
Fig. 4 is the control block diagram of the controller of hydraulic driven remote control tractor of the present invention.
Fig. 5 is the circuit diagram of the controller of hydraulic driven remote control tractor of the present invention.
The specific embodiment
The specific embodiment that provides below in conjunction with accompanying drawing and contriver is described in further detail hydraulic driven remote control tractor of the present invention.
Fig. 1 has provided the structural representation of hydraulic driven remote control tractor of the present invention, comprise frame 16, track adjusting wheel 1, drive wheel 19, water tank 2, diesel engine 5, storage battery 6, controller 10, hydraulic reservoir 17, described track adjusting wheel 1 and drive wheel 19 are installed in the both sides, following front and back of frame 16, track adjusting wheel 1 is connected with drive wheel by crawler belt 23 connections, described water tank 2, diesel engine 5, hydraulic reservoir 17 are installed in the centre of frame 16 successively, between diesel engine 5 and the water tank 2 centrifugal pump 3 is installed, between hydraulic reservoir 17 and the diesel engine 5 gear case 7 is installed; The power wheel of described centrifugal pump 3 is connected with driving gear during gear case is connected by belt 4 and the power wheel of diesel engine 5, and water tank 2, centrifugal pump 3, cooling vessel 18 are interconnected by water pipe,
Described hydraulic reservoir 14 is connected with the operation oil pump 21 be connected with driven gear of walking oil pump 22 on the driving gear that is installed in gear case 7 respectively by oil pipe,
Also be provided with intermediate drive gear 8 in the described gear case 7 and be used for controlling the shift fork 9 that intermediate drive gear is shifted;
Described HM Hydraulic Motor 20 has two to be installed in respectively on the left and right driving wheel 19;
Described cooling vessel 18 be installed in hydraulic oil pipe around;
Described walking oil pump 22 is connected with the oil cylinder that is connected controlling agricultural implement mounting lifting by walking pressure distributor 15 and two HM Hydraulic Motor 20; Between walking pressure distributor 15 and hoist cylinder control cock 13 being installed is connected.
Described operation oil pump 21 is connected with the HM Hydraulic Motor that drives farm implements work by operation pressure distributor 14;
Described controller 10 is comprised of the remote controller that transmits, wireless receiving circuit, decoding circuit, micro controller system, driving circuit, relay.
Described walking pressure distributor 15 is comprised of 4 solenoid directional control valves 11 and 4 electromagnetic speed-adjusting valves 12.
Described operation distributing box 14 is comprised of reducing valve 25 and governor valve 26.
Fig. 2 has provided the structural representation of the walking pressure distributor of hydraulic driven remote control tractor of the present invention, the first branch line of the walking oil pipe that is communicated with walking oil pump 22 is communicated with solenoid directional control valve 11 first ports, the second port of solenoid directional control valve 11 is communicated with by the input end of oil pipe with the first work motor 20, the mouth of the first work motor 20 is communicated with solenoid directional control valve 11 the 3rd port by oil pipe, the 4th port of solenoid directional control valve 11 is communicated with oil return pipe, the second port at solenoid directional control valve 11 is equipped with electromagnetic speed-adjusting valve 12 with the oil pipe that the input end of the first work motor 20 is connected, mouth at the first work motor 20 is equipped with the electromagnetic speed-adjusting valve with the oil pipe that solenoid directional control valve 11 the 3rd port is connected, and is connected with by pass valve 24 between the first port of solenoid directional control valve 11 and the 4th port.
The second branch line of the walking oil pipe that is communicated with walking oil pump 22 is connected the second work motor, and concrete link is the first branch line together.
The three branch of the walking oil pipe that is communicated with walking oil pump 22 is communicated with solenoid directional control valve the first port, the second port of solenoid directional control valve is communicated with by the input end of oil pipe with the first hoist cylinder, the mouth of the first hoist cylinder is communicated with solenoid directional control valve the 3rd port by oil pipe, the 4th port of solenoid directional control valve is communicated with oil return pipe, on the three branch of the oil pipe of being expert at flow regulating valve 27 is installed.
Between walking pressure distributor 15 and hoist cylinder, control cock 13 is installed.
The 4th branch line of the walking oil pipe that is communicated with walking oil pump 22 is connected with the second hoist cylinder, and concrete link is with three branch.
Fig. 3 is the structural representation of the operation distributing box of hydraulic driven remote control tractor of the present invention, and operation oil pump 21 is connected with the HM Hydraulic Motor that drives farm implements work by operation tubing, and reducing valve 25 and governor valve 26 compositions are installed on operation tubing successively.
Fig. 4 has provided the control block diagram of the controller of hydraulic driven remote control tractor of the present invention, comprises the remote controller that is comprised of power supply, keyboard control circuit, encode circuit and radio transmitter and wireless receiving circuit, decoding circuit, micro controller system, driving circuit, relay.Wireless receiving circuit is sent to decoding circuit with the signal that the remote controller that receives sends, decoding circuit is sent to micro controller system with signal after signal is decoded, micro controller system is sent to driving circuit with signal after signal is processed, the driving circuit starting relay carries out on-off control to solenoid directional control valve and the electromagnetic speed-adjusting valve of walking distributing box, to realize the distribution to hydraulic fluid pressure and flow.
Fig. 5 is the circuit diagram of the controller of hydraulic driven remote control tractor of the present invention, and chip U1 (ULN2803) the 1st～8 pin meets respectively P10～P17, the 9th pin ground connection, and the 10th pin connects power supply (12), and the 11st～18 pin meets respectively J7～J0.
Chip U2 (ULN2803) the 1st～6 pin meets respectively P30～P31, P34～P37, the 9th pin ground connection, and the 10th pin connects power supply (12V), and the 13rd～18 pin meets respectively J13～J8.
Chip U3 (7805) the 1st pin connects power supply (12V), between power supply (12V) and the 2nd pin, be in series with polar capacitor C25, be in series with capacitor C 24 between the 1st pin and the 2nd pin, the 3rd pin connects power supply (5V), connects with the 2nd pin at the 3rd pin and is in series with capacitor C 23 and ground connection.
Chip U5 (74HC14) the 1st～6 pin meets respectively P10IN, P10, P11IN, P11, P12IN, P12, the 7th pin ground connection, and the 14th pin connects power supply (5V), and the 8th～13 pin meets respectively P13, P13IN, P14, P14IN, P15, P15IN.
Chip U6 (74HC14) the 1st～6 pin meets respectively P10IN, P10, P11IN, P11, P12IN, P12, the 7th pin ground connection, and the 14th pin connects power supply (5V), and the 8th～13 pin meets respectively P31, P31IN, P43, P34IN, P35, P35IN.
Chip U7 (74HC14) the 1st～6 pin meets respectively P36IN, P36, P37IN, P37, INT-IN, INT, the 7th pin ground connection, and the 14th pin connects power supply (5V).
Core machine U8 (AT89S51) the 1st～8 pin, 10～11 pins, 14～17 pins are connected with P10IN～P17IN, P30IN～P31IN, P34IN～P37IN through diode D20, D11, D12, D13, D14, D15, D16, D17, D14, D18, D19, D21, D22, D23, D24 respectively; The 9th pin series resistance R1 ground connection, and polar capacitor C4 and interrupteur SW 1 connect the 5V power supply; 18th, positive brilliant Y1 in parallel, capacitor C 5, capacitor C ground connection between 19 pins; The 20th pin ground connection; The 40th pin connects power supply (5V), between be in series with capacitor C 2, polar capacitor C3 and ground connection; The 30th pin connects power supply (5V); The 21st pin connects chip PT2272 the 13rd pin; The 22nd pin is in parallel with chip PT2272 the 12nd pin and chip U9 (74HC14) the 1st pin; The 23rd pin is in parallel with chip PT2272 the 11st pin and chip U9 (74HC14) the 2nd pin; The 24th pin is in parallel with chip PT2272 the 10th pin and chip U9 (74HC14) the 13rd pin.
Chip PT2272 the 1st～9 a pin end ground connection in parallel, a chip termination FST-8 the 2nd pin; 14th, 18 pins connect respectively chip FST-8 the 3rd, 4 pins; 15th, 16 pins are connected with resistance R 2; The 18th pin and connect parallel connection power supply (5V) between chip FST-8 the 4th pin, capacitor C 1 ground connection.
Chip U9 the 7th pin ground connection, the 14th pin connects power supply (5V), and the 12nd pin connects core machine U8 the 9th pin.
Chip J1 (24V-Electromag Relay) the 1st pin and connect core and meet J0,2nd, 5 pins also connect power supply (12V), the 5th pin polar capacitor C31 in parallel ground connection, the 4th pin is through resistance R 3, polar capacitor C30 ground connection, the 4th pin meets JUN1 through diode D31,3rd, be connected to diode D1 between 1 pin, the 3rd pin connects power supply (12V).
Chip J1～same the J0 of J14 connection mode omits.
Chip JP2 the 1st pin meets GND, and the 2nd pin connects power supply (12V), and the 5th～18 pin meets JUN14～JUN1, and the 5th～18 pin connects successively and be connected to diode D44～D55, D60～61 and capacitor C 34～45, C50～51 and ground connection.
Table 1 has provided the working cycle table of the walking pressure distributor of hydraulic driven remote control tractor of the present invention: table 1 working cycle table.
Annotate: in the form+connection of table mark.
Claims (4)
1. hydraulic driven remote control tractor, comprise frame (16), track adjusting wheel (1), drive wheel (19), water tank (2), diesel engine (5), storage battery (6), controller (10), hydraulic reservoir (17), described track adjusting wheel (1) and drive wheel (19) are installed in the both sides, following front and back of frame (16), track adjusting wheel (1) is connected 19 with drive wheel) connect by crawler belt (23), described water tank (2), diesel engine (5), hydraulic reservoir (17) is installed in the centre of frame (16) successively, between diesel engine (5) and the water tank (2) centrifugal pump (3) is installed, between hydraulic reservoir (17) and the diesel engine (5) gear case (7) is installed; The power wheel of described centrifugal pump (3) is connected 7 with the power wheel of diesel engine (5) with gear case by belt (4)) in driving wheel be connected, water tank (2), centrifugal pump (3), cooling vessel (18) are interconnected by water pipe, it is characterized in that:
Described hydraulic reservoir (17) is connected with the operation oil pump (21) be connected with driven gear of walking oil pump (22) on the driving gear that is installed in the gear case (7) respectively by oil pipe,
Also be provided with intermediate drive gear (8) in the described gear case (7) and be used for controlling the shift fork (9) that intermediate drive gear is shifted;
Described HM Hydraulic Motor (20) has two to be installed in respectively on the left and right driving wheel (19);
Described cooling vessel (18) be installed in hydraulic oil pipe around;
Described walking oil pump (22) is connected with two HM Hydraulic Motor (20) by walking pressure distributor (15), and is connected with the oil cylinder of control agricultural implement mounting lifting;
Described operation oil pump (21) is connected with the HM Hydraulic Motor that drives farm implements work by operation pressure distributor (14);
Described controller (10) is comprised of the remote controller that transmits, wireless receiving circuit, decoding circuit, micro controller system, driving circuit, relay.
2. hydraulic driven remote control tractor according to claim 1, it is characterized in that: described walking pressure distributor (15) is comprised of 4 solenoid directional control valves (11), 4 electromagnetic speed-adjusting valves (12) and a by pass valve (24) and a flow regulating valve (27).
3. hydraulic driven remote control tractor according to claim 1, it is characterized in that: described operation distributing box (14) is comprised of reducing valve (25) and governor valve (26).
4. hydraulic driven remote control tractor according to claim 1 is characterized in that: between walking pressure distributor (15) and hoist cylinder control cock (13) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140506 CN101850722B (en) | 2010-04-07 | 2010-04-07 | Hydraulic driven remote control tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140506 CN101850722B (en) | 2010-04-07 | 2010-04-07 | Hydraulic driven remote control tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101850722A CN101850722A (en) | 2010-10-06 |
| CN101850722B true CN101850722B (en) | 2013-04-10 |
Family
ID=42802453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010140506 Expired - Fee Related CN101850722B (en) | 2010-04-07 | 2010-04-07 | Hydraulic driven remote control tractor |
Country Status (1)
| Country | Link |
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| CN (1) | CN101850722B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422277B (en) * | 2015-12-18 | 2018-01-05 | 陕西航天动力高科技股份有限公司 | Stepless free regulating speed diesel oil engine centrifugal pump group is closed |
| CN105723843B (en) * | 2016-01-14 | 2018-07-10 | 西北农林科技大学 | A kind of multi-funcitonal wheel orchard operation vehicle |
| CN106080185A (en) * | 2016-07-26 | 2016-11-09 | 永州田源机械装备有限公司 | It is applied to the intelligent Hydraulic Power Transmission System of agricultural machinery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2719683Y (en) * | 2004-08-18 | 2005-08-24 | 赵玉民 | Multifunctional creeper type tractor |
| CN101518223A (en) * | 2009-04-03 | 2009-09-02 | 西北农林科技大学 | Self-propelled remote control spraying machine |
| CN201633539U (en) * | 2010-04-07 | 2010-11-17 | 西北农林科技大学 | Hydraulic drive remote control tractor |
-
2010
- 2010-04-07 CN CN 201010140506 patent/CN101850722B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2719683Y (en) * | 2004-08-18 | 2005-08-24 | 赵玉民 | Multifunctional creeper type tractor |
| CN101518223A (en) * | 2009-04-03 | 2009-09-02 | 西北农林科技大学 | Self-propelled remote control spraying machine |
| CN201633539U (en) * | 2010-04-07 | 2010-11-17 | 西北农林科技大学 | Hydraulic drive remote control tractor |
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| Publication number | Publication date |
|---|---|
| CN101850722A (en) | 2010-10-06 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130410 Termination date: 20160407 |