CN2267973Y - Driving device for electric tractor - Google Patents
Driving device for electric tractor Download PDFInfo
- Publication number
- CN2267973Y CN2267973Y CN 96214040 CN96214040U CN2267973Y CN 2267973 Y CN2267973 Y CN 2267973Y CN 96214040 CN96214040 CN 96214040 CN 96214040 U CN96214040 U CN 96214040U CN 2267973 Y CN2267973 Y CN 2267973Y
- Authority
- CN
- China
- Prior art keywords
- motor
- phase
- switch
- utility
- generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Eletrric Generators (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Charge By Means Of Generators (AREA)
Abstract
The utility model relates to a driving device for an electric tractor, belonging to the power device of the agricultural motor vehicle. The utility model is the power device which does not use fuel oil and has no pollution and low noise. The utility model uses a 24 volt direct current motor M < 1 > to drive a 400 volt triphase alternate current generator G. The electric energy generated by the generator G supplies a back charging power supply transformer T, replenishes electric energy for the storage batteries UF < 1 > and UF < 2 > which are used as the power supply of the 24 volt direct current motor, and is used as the power supply of a triphase variable speed motor M < 2 > to generate the running power of the agricultural motor vehicle. In addition, the utility model uses a motor integration protector and a triphase contactor J to ensure the normal running of the triphase motor. The utility model does not use water and fuel oil and releases the energy source, and the purpose is wide.
Description
The utility model belongs to the engine installation of agriculture self-propelled vehicle.
At present, the walker tractor that uses of China rural area all is power with diesel engine.This class type noise is big, the exhaust gas discharged contaminated environment, and also water is more, and hand starting is dangerous.In addition, used storage battery will come and go charging, for remote mountain village, often must adopt two cover backup storage batterys.
The purpose of this utility model is without fuel oil and battery-powered tractor actuating device pollution-free, low noise.
The purpose of this utility model is achieved in that
A kind of battery-powered tractor actuating device is characterized in that city piezoelectric transformer T, and rectification bridge circuit R1 and storage battery UF1, UF2 connect successively, and a part of UF2 of storage battery is in parallel with DC motor M1; The in succession rotor of three-phase generator G of the rotor of this DC motor M1 drive belt of ining succession, drive belt; The primary winding of one group of phase wire joint civil power voltage transformer of this three-phase generator G, and three phase lines of this three-phase generator G are all through the contact of comprehensive protector of motor S and contactless switch J, with the corresponding connection of three phase lines of the driving three-phase speed change alternating-current motor/AC motor M2 of trac., the Lh winding of driving engine is torn open back through bridge rectifier R2 again and is connected winding L e again;
The terminal 1 of described comprehensive protection device is connected the coil of contactless switch with an end of 2, and behind another terminal 1 polyphone " off switch " K6 and " starting switch " k5, it connects the phase line of the driving motor M2 of trac. again; And another phase line of terminal 2 direct connection electrical motor M2; " off switch " K6 and the two point of contact of " starting switch " K5 are through contact CJ splicing ear 3; The other end of terminal 4 direct connection starting switches.
In conjunction with the accompanying drawings, the utility model content is described.
Fig. 1 battery-powered tractor actuating device electrical schematic diagram.
Identifier is as follows among the figure:
M
124 volts of DC motor
M
2Three-phase speed change alternating-current motor/AC motor S integrated protector for electric motor
400 volts of three phase alternator T of G recharge supply transformer
R
1, R
2Rectification silicon bridge UF
1, UF
2Cadmium-nickel storage battery
J three-phase contactor K switch
1Main supply switch
K
2Recharge K switch
324 volts of DC motor switches
K
4Three phase switch K
5, K
6Button switch
Fig. 1 is the driving device for electric tractor electrical schematic diagram. K closes a switch1And K2, 220 volts of 50H2Civil power is through transformer T and rectification silicon bridge R1, give serial connection battery UF1And UF2Charging. After each charging is complete, these power set wheeled Mileage once charges.
With 24 volts of dc motor M1, driving 400 volts of threephase alternator G, generator G generates electricity to supply with and recharges power transformer T and silicon bridge R1, give as motor M2The battery UF of power supply1And UF2Electric energy supplement, and supply with three-phase variable-speed motor M2The driving dynamics of power generation Agricultural automotive vehicle.
When driving to travel, open K switch3, 24 volts of dc motor M1Rotation is by belt (two-dot chain line among the figure Shown in) drive threephase alternator G generating. Dotted line garden circle represents alternating current generator G, wherein LA、L
B、L
CThe generator main winding of Y-connection, LhThe generator harmonic winding, LeIt is rotor field coil. Generator G rotation, Make harmonic winding LhUpper institute electricity is through rectification silicon bridge R2Rotor excitation coil L is given in rectificationeThe charging excitation makes generating Machine G progresses into formal generating state. Main winding LA、L
B、L
CInstitute's electricity is given motor M through three-phase contactor switch J and threephase switch K42Power supply is driven and is sailed tractor. In addition, two phase lines in three phase lines from generator supply Transformer T accumulators UF1And UF2Continuous electric energy supplement. Additional voltage is 50 volts.
Be in operation to burn because of reasons such as break phase, overvoltage or overcurrents for threephase motor and adopt general motor Protector S and three-phase contactor J. And be serially connected in motor M2Power line on, control motor M2Push And Release. The institute Stating integrated protector for electric motor is a SF581 integrated circuit, and described three-phase contactor is the three-phase that machine tool uses Switch. Integrated protector for electric motor S belongs to the integrated circuit type, and profile is seen upper left corner stereogram among the figure. Three through hole H are arranged on it1、H
2、H
3, passing for three live wires of three-phase electricity to be controlled, other has four outputs 1,2,3,4, and output 1,2 links to each other the starting switch K of output 1 through connecting with the coil of the contactor of three-phase electricity5With closing switch K6, and output 2 links to each other with two phase lines of three-phase to be controlled respectively. Output 4 directly links to each other with phase A, Output 3 is by self-holding contact CJBe connected K switch5And K6Lian Dianshang.
If phase line current 〉=6A, then phase line is once directly passed hole H1、H
2、H
3, the phase line current is at 3A-6A, phase line secondary punch then, and at 2A～3A, then 3 perforation of phase line are to guarantee that phase line is at through hole H1、H
2、H
3In have enough Inductance value.
Have a phase overbalance to be out of order in three-phase or break, then protector action makes the contactless coil outage and barrier gate cuts off the power supply the motor three-phase simultaneously with this and protects electrical motor M
2
Two volt meter V are arranged in the circuit
1(direct current) and V
2(interchange) monitors the power supply of 24 volts of DC motor and the phase voltage of three-phase generator G institute electricity respectively.Circuit KC
1, KC
2Be the automatic switch of electric leakage contact, connecting electrical generator G and motor M
2Three phase lines.
The utility model advantage:
1, not water and fuel oil are alleviated the energy;
2, pollution-free, low noise, harmless;
3, purposes is wide, not only is used for agricultural little four-wheel, also can be used for small passenger car.
Embodiment 1
ST190 type battery-powered tractor uses the comprehensive protection device integrated circuit to be SF581, and the silicon bridge diode is 2AK1, speed change three-phase motor M
2With three-phase generator G be commercially available, press Fig. 1 and connect.
This actuating device technical index is as follows:
Alternating current generator G:400 volt, 10 kilowatts of three-phases
Drive electrical generator M
2: 380 volts, 7.5 kilowatts of three-phase speed changes
DC machine M
1: 24 volts of direct currents
DC charging voltage: 50 volts
Method of operation:
Open K switch
3, look at V
1And V
224 volts of direct currents with exchange 380 volts whether normal, if normally open K switch again
2And press K
5, make AC driven motor M
2Drive the farm-oriented motor-driven trac..Travelling 10,000 5 thousand kilometers is a defects liability period.
Claims (2)
1, a kind of battery-powered tractor actuating device is characterized in that city piezoelectric transformer T, and rectification bridge circuit R1 and storage battery UF1, UF2 connect successively, and a part of UF2 of storage battery is in parallel with DC motor M1; The in succession rotor of three-phase generator G of the rotor of this DC motor M1 drive belt of ining succession, drive belt; The primary winding of one group of phase wire joint civil power voltage transformer of this three-phase generator G; and three phase lines of this three-phase generator G are all through the contact of comprehensive protector of motor S and contactless switch J; with the corresponding connection of three phase lines of the driving three-phase speed change alternating-current motor/AC motor M2 of trac., the Lh winding of driving engine is torn open back through bridge rectifier R2 again and is connected winding L e again.
2, actuating device according to claim 1, it is characterized in that the terminal 1 of described comprehensive protection device is connected the coil of contactless switch with an end of 2, and behind another terminal 1 polyphone " off switch " K6 and " starting switch " k5, it connects the phase line of the driving motor M2 of trac. again; And another phase line of terminal 2 direct connection electrical motor M2; " off switch " K6 and the two point of contact of " starting switch " K5 are through contact CJ splicing ear 3; The other end of terminal 4 direct connection starting switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96214040 CN2267973Y (en) | 1996-07-31 | 1996-07-31 | Driving device for electric tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96214040 CN2267973Y (en) | 1996-07-31 | 1996-07-31 | Driving device for electric tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2267973Y true CN2267973Y (en) | 1997-11-19 |
Family
ID=33896242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96214040 Expired - Fee Related CN2267973Y (en) | 1996-07-31 | 1996-07-31 | Driving device for electric tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2267973Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290847A (en) * | 2011-08-23 | 2011-12-21 | 刘芳雨 | Energy-stored type power transmission driving system |
| CN102729836A (en) * | 2012-07-04 | 2012-10-17 | 西北农林科技大学 | Dual-power remote control electric tractor for greenhouses |
| CN114337080A (en) * | 2021-12-31 | 2022-04-12 | 华中农业大学 | Novel electric tractor driving structure and driving method thereof |
-
1996
- 1996-07-31 CN CN 96214040 patent/CN2267973Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290847A (en) * | 2011-08-23 | 2011-12-21 | 刘芳雨 | Energy-stored type power transmission driving system |
| CN102290847B (en) * | 2011-08-23 | 2013-06-12 | 刘芳雨 | Energy-stored type power transmission driving system |
| CN102729836A (en) * | 2012-07-04 | 2012-10-17 | 西北农林科技大学 | Dual-power remote control electric tractor for greenhouses |
| CN114337080A (en) * | 2021-12-31 | 2022-04-12 | 华中农业大学 | Novel electric tractor driving structure and driving method thereof |
| CN114337080B (en) * | 2021-12-31 | 2023-03-10 | 华中农业大学 | Electric tractor driving structure and driving method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |