CN100526113C

CN100526113C - Energy-storing type biaxial variable-speed motor for electric vehicle

Info

Publication number: CN100526113C
Application number: CNB2005100301033A
Authority: CN
Inventors: 孙为红
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-28
Filing date: 2005-09-28
Publication date: 2009-08-12
Anticipated expiration: 2025-09-28
Also published as: CN1767328A

Abstract

The invention relates to an electric vehicle used energy stored double shaft change-speed motor which is formed by a motor body, a dynamic output mechanism and a change-speed case, wherein the change-speed case has energy stored function and is formed by a flyer positioned on the main shaft end of the motor, a decenter block positioned on the flyer and the friction disk of the center with flyer inertia output shaft; the dynamic output mechanism has influx kinetic output function and is formed by a dynamic output shaft, a drive gear wheel and a slave gear wheel.

Description

A kind of energy-storing type biaxial variable-speed motor for electric vehicle

Technical field

The present invention relates to dynamo-electric field, particularly a kind of energy-storing type biaxial variable-speed motor.

Background technology

Traditionally, people are referred to as battery-driven car with Electrical Bicycle, battery-operated motor cycle, mini electric vehicle, they have a common feature be with storage battery as energy source, drive motor work, have advantage such as quick, convenient and laborsaving, free from environmental pollution when using, favored by the people.According to statistics, the market owning amount of China's battery-driven car surpasses 1,400 ten thousand approximately at present, has become one of important vehicle of working clan, urban and rural residents.In the battery-driven car use, people more and more realize: the advertisement introduction of battery-driven car, the Che Zaichu that newly buys reflect all that with the stage performance is fine, the 60-70 kilometer that can travel once charges, but along with putting off of period of service, all find to use more not all right and more not all right, the distance of effectively travelling after each charging is shorter and shorter, can only travel the 30-40 kilometer, for this reason people generally believe be accumulator quality problem institute extremely, must often change storage battery, thereby cause actual use cost very high.

In fact, the mode of operation of storage battery is by its inherent characteristic decision, and any over discharge and charging all are not fill to be permitted, and the result of any overload, destructive work must pay the cost of sacrificing service life.Facts have proved: one is equipped with one group of rated operational voltage is that 36 volts of (or 48 volts), rated operational currents are the battery-driven car of 14 amperes of (perhaps 17 amperes) storage batterys; working current often will reach twenties to thirties amperes when full and down starts; when going up a slope, need tens amperes; run into situations such as pedestrian, driving, traffic lights when on flat road surface, travelling through regular meeting; must frequently stop and restart, these situations all can cause the deep layer discharge of the excessive super-large current of storage battery ground, cause very fast damage.The reason that such situation takes place is owing to need electrical motor that very big moment is provided during vehicle launch, and the working mechanism of electrical motor is just to export rated moment under rated current, and needed big moment must realize by the increase electric current during startup.So, no matter be that brush, brushless or straight-though are arranged, all can make the storage battery of institute's adapted can't break away from above-mentioned predicament as long as on battery-driven car, adopt the electrical motor of prior art.

According to the manufacturing process of present lead-acid storage battery, if group storage battery when work discharge current is within reason big, repeated use is no problem more than 300 times.If imagine 90 kilograms of battery-driven car load-carryings, the battery discharging electric current is 6-7 ampere (be conventional truck 1/4) during startup. cruising (average 25 kilometers per hour) battery discharging electric current is about 5 amperes, on the upward slope during bridge about 6 amperes, the 90-100 kilometer that can travel like a cork after then storage battery once charges, the use of storage battery (not having the repeatedly fatal super-large current discharge) life-span just can prolong 2--3 doubly.If storage battery is pressed 300 yuan of unit prices, is weighed 15 kilograms of calculating, under can saving, annual people change the expense Yue Keda 4.2 billion RMB yuan of new accumulator in using battery-driven car, and country can reduce about 210,000 tons of waste batteries that may produce pollution to environment approximately.

Summary of the invention

The objective of the invention is to provide a kind of and can overcome the shortcoming that moment is little when having the electric vehicle motor start-up now, the big ability of overcurrent increased force will square is supplied with in requirement, even the double load of battery-driven car also can make electrical motor easily start, easily go up a slope not imposing storage battery to provide under the situation of super-high-current, and in the way of travelling, can also also can carry out speed change, regulate the novel energy-storing type biaxial variable-speed motor of output torque to battery charge, energy storage during crash arrest according to different situations on the road surface in the way.

The present invention is achieved in that energy-storing type biaxial variable-speed motor mainly is made up of motor body, power take-off mechanism and change speed gear box, and the motor body two ends are provided with end cap, central authorities stretch and are equipped with motor main shaft; Power take-off mechanism mainly is made of power take-off shaft, driving gear and the driven gear that is fixedly installed on the power take-off shaft; Change speed gear box is arranged on the end cap of electrical motor, and mainly the flywheel inertia output shaft that is arranged on flywheel on the motor main shaft end, is movably arranged on the flywheel centrifugal, grinding disk and is arranged on the grinding disk center by suit constitutes.Wherein: flywheel inertia output shaft main body both can the suit activity be stretched and was put in the center cylindrical hole of motor main shaft, also can suit be movably arranged on outside the end of motor main shaft and place, the one end is fixedly installed on grinding disk, and the other end and driving gear anchor shaft are pretended and connected; Power take-off mechanism and change speed gear box both can monolaterally be provided with on the end cap face that pattern is arranged on motor body simultaneously, also can bilaterally be provided with pattern be separately positioned on motor body about on two end cap faces.

During work, when battery-driven car starts, at first connect battery feed, electrical motor is started working, the driving gear and the flywheel that are arranged on the motor main shaft end begin to rotate synchronously with motor main shaft, and speed-raising fast, when rotating speed acquires a certain degree, under centrifugal action, be close on the grinding disk for centrifugal on the flywheel, and drive grinding disk and be the flywheel inertia output shaft rotation of one with it, rotation potential energy that flywheel is stored in advance by the flywheel inertia output shaft and motor output torque compile together and are input to driving gear, driven gear through being engaged with slows down, by the big moment of power take-off shaft output.Flywheel rotates, power storage owing to driven when the little electric current of electrical motor starts to work, then energy is discharged, with the conventional output torque of electrical motor converge, powered vehicle starts, thereby do not need storage battery to supply with super-large current especially; In the normal vehicle operation process, because flywheel and motor main shaft are in all the time and synchronous working state, stopped by street corner traffic lights, pedestrian or driving when frequently braking and startup, the energy storage of flywheel has brought enough energy for the frequent starting of battery-driven car, does not need storage battery that extra super-large current is provided.When up-hill journey, enough energy and electrical motor that flywheel will have been stocked when the level land are worked together, add to cooperate the device that control can the increment speed change, just can finish the action of going up a slope like a cork; When being hampered brake, outage in battery-driven car is travelling the way, because the rotor inertia of flywheel still can be rotated at a gallop with the electrical motor of outage, under the adjusting of controller, the electrical motor of this moment changes an electrical generator into thereupon, and storage battery is charged.So of short duration parking each time and outage all are the good opportunity to batteries charging.After the moment parking,, can provide extra mechanical kinetic energy to replenish again for startup next time because the rotor inertia of flywheel still has surplus.

Energy-storing type biaxial variable-speed motor of the present invention based on above-mentioned design, be provided with change speed gear box and have the power take-off mechanism that converges the kinetic energy output function owing in existing motor base (MB), increase with energy storage function, efficiently solve the situation of big electric current overdischarge in the battery-operated process, help guaranteeing the mode of operation of battery-operated in rated designs, prolong work life, also help improving the integral working and the energy-saving effect of battery-driven car, start, power saving is laborsaving again during upward slope, and has brake, the function of moment of stopping to battery charge, thereby has a significant technical advance, very good economy and extremely strong practicality are a kind of desirable renewal products of existing electrical motor on the battery-driven car.

Description of drawings

Fig. 1 is the monolateral formula overall structure scheme drawing that is provided with of the embodiment of the invention one;

Fig. 2 is the bilateral formula overall structure scheme drawing that is provided with of the embodiment of the invention two.

Among the figure: 1. motor body 2. power take-off mechanisms 3. change speed gear boxs 4. left end caps

5. right end cap 6. motor main shafts 7. power take-off shafts 8. driving gears

9. driving gear 10. driven gears 11. driven gears 12. flywheels

13. centrifugal 14. grinding disk 15. flywheel inertia output shafts 16. center cylindrical hole

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing and exemplary embodiments.

Embodiment one: the monolateral formula that is provided with

In Fig. 1, the energy-storing type biaxial variable-speed motor of the embodiment of the invention one mainly is made up of motor body 1, power take-off mechanism 2 and change speed gear box 3.Power take-off mechanism 2 and change speed gear box 3 are arranged on the same end cap face of motor body 1; Motor body 1 two ends are provided with left and right sides end cap 4 and 5, central authorities stretch and are equipped with motor main shaft 6; Power take-off mechanism 2 mainly is made of power take-off shaft 7, driving gear 8,9 and the driven gear 10 and 11 that is fixedly installed on the power take-off shaft 7; Change speed gear box 3 is arranged on the right end cap 5 of motor body 1, and mainly the flywheel inertia output shaft 15 that is arranged on flywheel 12 on motor main shaft 6 ends, is movably arranged on the flywheel 12 centrifugal 13, grinding disk 14 and is arranged on grinding disk 14 centers by suit constitutes.Wherein the 15 suit activities of flywheel inertia output shaft are stretched to put outside the end of motor main shaft 6 and are placed, and the one end is fixedly installed on grinding disk 14, and 8,9 dresses of the other end and driving gear are fixedly linked.

Embodiment two: the bilateral formula that is provided with

In Fig. 2, the energy-storing type biaxial variable-speed motor of the embodiment of the invention two mainly is made up of motor body 1, power take-off mechanism 2 and change speed gear box 3.Power take-off mechanism 2 and change speed gear box 3 are separately positioned on the left and right sides end cap face of motor body 1; Motor body 1 two ends are provided with left and right sides end cap 4 and 5, central authorities stretch and are equipped with motor main shaft 6; Power take-off mechanism 2 is arranged on the right end cap 5 of motor body 1, main by power take-off shaft 7, be fixedly installed on the driving gear 8 and 9 on motor main shaft 6 ends, the driven gear 10 and 11 that is fixedly installed on the power take-off shaft 7 constitutes; Change speed gear box 3 is arranged on the left end cap 4 of motor body 1, and mainly the flywheel inertia output shaft 15 that is arranged on flywheel 12 on motor main shaft-5-6 end, is movably arranged on the flywheel 12 centrifugal 13, grinding disk 14 and is arranged on grinding disk 14 centers by suit constitutes.Wherein flywheel inertia output shaft 15 suits are movably arranged in the center cylindrical hole 16 of motor main shaft 6, and the one end is fixedly installed on grinding disk 14, and 8,9 dresses of the other end and driving gear are fixedly linked.

Claims

1. energy-storing type biaxial variable-speed motor, by motor body (1), power take-off mechanism (2) and change speed gear box (3) are formed, motor body (1) two ends are provided with left end cap (4) and right end cap (5), central authorities stretch and are equipped with motor main shaft (6), power take-off mechanism (2) and change speed gear box (3) are arranged on the end cap face of motor body (1), it is characterized in that: power take-off mechanism (2) is by power take-off shaft (7), be fixedly installed on first driving gear (8) and second driving gear (9) on motor main shaft (6) end, first driven gear (10) and second driven gear (11) that are fixedly installed on the power take-off shaft (7) constitute; Change speed gear box (3) is made of the flywheel inertia output shaft (15) that suit is arranged on flywheel (12) on motor main shaft (6) end, is movably arranged on centrifugal (13), the grinding disk (14) on the flywheel (12) and is arranged on grinding disk (14) center; One end of flywheel inertia output shaft (15) is fixedly installed on the grinding disk (14), and the other end and first driving gear (8) and second driving gear (9) axle dress are fixedly linked.

2. energy-storing type biaxial variable-speed motor according to claim 1 is characterized in that described flywheel inertia output shaft (15) suit is stretched to put outside the end of motor main shaft (6) to place.

3. energy-storing type biaxial variable-speed motor according to claim 1 is characterized in that described flywheel inertia output shaft (15) suit is stretched to put in the center cylindrical hole (16) of motor main shaft (6).