CN201362163Y - Double-motor power synthesis device for driving electric vehicles - Google Patents

Double-motor power synthesis device for driving electric vehicles Download PDF

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Publication number
CN201362163Y
CN201362163Y CNU2008202336977U CN200820233697U CN201362163Y CN 201362163 Y CN201362163 Y CN 201362163Y CN U2008202336977 U CNU2008202336977 U CN U2008202336977U CN 200820233697 U CN200820233697 U CN 200820233697U CN 201362163 Y CN201362163 Y CN 201362163Y
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CN
China
Prior art keywords
motor
input shaft
box
double
motor input
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
Application number
CNU2008202336977U
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Chinese (zh)
Inventor
仇斌
朱家琏
陈全世
江发潮
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Tsinghua University
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Tsinghua University
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CNU2008202336977U priority Critical patent/CN201362163Y/en
Application granted granted Critical
Publication of CN201362163Y publication Critical patent/CN201362163Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a double-motor power synthesis device for driving electric vehicles, which belongs to the power synthesis technology and device. An output shaft is supported by two second deep groove ball bearings on the middle part inside a box-shaped main box body, and the left and the right sides of the output shaft are respectively provided with a left motor input shaft and a right motor input shaft, and all the right motor input shaft, the left motor input shaft and the output shaft are of a hollow structure. The input shaft is connected with the output shaft through a gear. The double-motor power synthesis device not only can integrate the power of the two motors, but also has a reduction function of a fixed speed ratio. The input and the output shafts are sealed in a gap way, so that the friction power loss and the heating are less, and the reliability is high, and the service life is long; the double-motor power synthesis output power can satisfy the requirements of 12m-long city buses.

Description

A kind of double-motor power synthesizer that is used for the elec. vehicle driving
Technical field
The utility model belongs to a kind of power synthetic technology and device, particularly is applied to a kind of double-motor power synthesizer that is used for the elec. vehicle driving of Large Electric vehicle.
Background technology
Permanent magnetic brushless has advantages such as volume is little, efficient is high, operating characteristic is hard, but Large-power High-Speed torque permanent magnet brushless motor technical risk energetically is big, though mid power permanent magnetic brushless manufacturing technology is ripe, but the power of single motor can't satisfy the requirement of 12m level city bus, at above defective and the application of suitable elec. vehicle better, the present invention proposes a kind of power synthesizer that is suitable for Dual-motors Driving, this device has two power intake mouths, a takeoff output port.The power of two motors be input to carry out in this device power synthetic after, by the output port output of engine installation, by transmission shaft, axletree direct drive wheel; Common this double-motor power synthesizer can not only converge the power of two motors, also has the deceleration of fixed speed ratio.
Summary of the invention
The purpose of this utility model is that the deficiency that the power at single motor in the prior art can't satisfy the requirement of 12m level city bus provides a kind of double-motor power synthesizer that elec. vehicle drives that is used for, it is characterized in that, use two power intake mouths, power merges the back by a takeoff output port output by gear; Output shaft 5 is supported on middle part in the box-like main box 10 by two second deep groove ball bearings 3, fixes first clearance seal 6 between box-like main box 10 upper port inwalls and output shaft 5, in box-like main box 10 upper ends by the fixing case lid 7 of screw 8; On output shaft 5 left sides by two first deep groove ball bearings, 1 carries left motor input shaft 18, by two the 3rd deep groove ball bearings, 9 supports right motor input shafts 11, each fixes second clearance seal 12 between left motor input shaft 18, right motor input shaft 11 and box-like main box 10 lower port inwalls on output shaft 5 the right; On box-like main box 10 lower port both sides left positioning spigot 17 and right positioning spigot 14 are set respectively, second internal splined hole 16 is set on the hypomere inner hole wall of left motor input shaft 18, the case lid end of the epimere of left motor input shaft 18 is equipped with kilometer sensor 2; On the hypomere inner hole wall of the fixing right motor input shaft 11 of end first internal splined hole 13 is set.
There is radiation rib 15 described box-like main box lower end and both sides, lower end.
Described right motor input shaft 11, left motor input shaft 18 and output shaft 5 these three axles are hollow structure.
Described output shaft and its gear 19 connect into one-piece construction for interference press-fit.
Described left and right motor input shaft and its gear 19 are integral type.
The beneficial effects of the utility model are that this device has two power intake mouths, a takeoff output port.The power of two motors be input to carry out in this device power synthetic after, by the output port output of engine installation, by transmission shaft, axletree direct drive wheel; This double-motor power synthesizer can not only converge the power of two motors, also has the deceleration of fixed speed ratio.The input and output axle head all adopts clearance seal, and no frictional power loss, heating are few, and reliability height, life-span are long; The synthetic horsepower output of double-motor power can satisfy the requirement of 12m level city bus.
Description of drawings
Fig. 1 is a double-motor power synthesizer structural representation.
The specific embodiment
The utility model provides a kind of double-motor power synthesizer that elec. vehicle drives that is used for, and uses two power intake mouths, and power merges the back by a takeoff output port output by gear; Output shaft 5 connects into one-piece construction with its gear 19 for interference press-fit; Left and right motor input shaft and its gear 19 are integral type;
Its structure is double-motor power synthesizer structural representation as shown in Figure 1.Output shaft 5 is supported on middle part in the box-like main box 10 by two second deep groove ball bearings 3 among the figure, fixes first clearance seal 6 between box-like main box 10 upper port inwalls and output shaft 5, in box-like main box 10 upper ends by the fixing case lid 7 of screw 8; On output shaft 5 left sides by two first deep groove ball bearings, 1 carries left motor input shaft 18, by two the 3rd deep groove ball bearings, 9 supports right motor input shafts 11, each fixes second clearance seal 12 between left motor input shaft 18, right motor input shaft 11 and box-like main box 10 lower port inwalls on output shaft 5 the right; On box-like main box 10 lower port both sides left positioning spigot 17 and right positioning spigot 14 are set respectively, second internal splined hole 16 is set on the hypomere inner hole wall of left motor input shaft 18, the case lid end of the epimere of left motor input shaft 18 is equipped with kilometer sensor 2; On the hypomere inner hole wall of the fixing right motor input shaft 11 of end first internal splined hole 13 is set, in box-like main box lower end and the both sides, lower end radiation rib 15 is arranged.Left and right two input motors are connected with left motor input shaft 18, right motor input shaft 11 by second internal splined hole 16, first internal splined hole 13 respectively, carry out the power input, the power of two input motors merges the back by a takeoff output port output by gear 19.
The utlity model has:
1. double-motor power synthesizer is the single horsepower output composite structure of dual input, and two motors are connected with the synthesizer input shaft by spline, and the right alignment between motor and the synthesizer guarantees by positioning spigot;
2. three axles are hollow structure, and with expendable weight, input shaft and its gear are integral type, and favourable noise reduces, and axle one end end has internal splined hole; Output shaft is that interference press-fit is connected with its gear, no gap, and coaxial precision height, the generation of reducing noise, the other end has male splines; And all axles all adopt deep groove ball bearing, reduce bearing friction loss and heating;
3. the input and output axle head all adopts clearance seal, and no frictional power loss, heating are few, and reliability height, life-span are long;
4. there is radiation rib box-like main box lower end and both sides, lower end, guarantee that synthesizer has enough dissipating areas, favourable control temperature rise; Box-like main box all has muscle in case lid, increases its rigidity, avoids the transition of big plane, reduces the radiation of sound area.
5. the utility model can reach: reduction ratio: 2.13; Maximum input torque: the 750Nm of every input shaft (in input speed 0 to 1600rmin-1 scope time); The highest input speed: 6000rmin-1; Every input shaft maximal input: 120kW; The assembly noise: in whole range of speeds ,≤72dB (A) (rotating requires the same); Have 1: 8 mileage meter of speed ratio;

Claims (5)

1. one kind is used for the double-motor power synthesizer that elec. vehicle drives, and it is characterized in that, described double-motor power synthesizer uses two power intake mouths, and power merges the back by a takeoff output port output by gear; Its output shaft (5) is supported on middle part in the box-like main box (10) by two second deep groove ball bearings (3), between box-like main box (10) upper port inwall and output shaft (5), fix first clearance seal (6), in box-like main box (10) upper end by the fixing case lid (7) of screw (8); On output shaft (5) left side by two first deep groove ball bearings (1) carries left motor input shafts (18), by two the 3rd deep groove ball bearings (9) supports right motor input shafts (11), each fixes second clearance seal (12) between left motor input shaft (18), right motor input shaft (11) and box-like main box (10) lower port inwall on output shaft (5) the right; On box-like main box (10) lower port both sides left positioning spigot (17) and right positioning spigot (14) are set respectively, second internal splined hole (16) is set on the hypomere inner hole wall of left motor input shaft (18), and the case lid end of the epimere of left motor input shaft (18) is equipped with kilometer sensor (2); On the hypomere inner hole wall of the fixing right motor input shaft (11) of end first internal splined hole (13) is set.
2. according to the described double-motor power synthesizer that is used for the elec. vehicle driving of claim 1, it is characterized in that there is radiation rib (15) described box-like main box lower end and both sides, lower end.
3. according to the described double-motor power synthesizer that is used for the elec. vehicle driving of claim 1, it is characterized in that these three axles of described right motor input shaft (11), left motor input shaft (18) and output shaft (5) are hollow structure.
4. according to the described double-motor power synthesizer that is used for the elec. vehicle driving of claim 1, it is characterized in that described output shaft and its gear are that interference press-fit connects into one-piece construction.
5. according to the described double-motor power synthesizer that is used for the elec. vehicle driving of claim 1, it is characterized in that described left and right motor input shaft and its gear are integral type.
CNU2008202336977U 2008-12-30 2008-12-30 Double-motor power synthesis device for driving electric vehicles Expired - Fee Related CN201362163Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008202336977U CN201362163Y (en) 2008-12-30 2008-12-30 Double-motor power synthesis device for driving electric vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008202336977U CN201362163Y (en) 2008-12-30 2008-12-30 Double-motor power synthesis device for driving electric vehicles

Publications (1)

Publication Number Publication Date
CN201362163Y true CN201362163Y (en) 2009-12-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008202336977U Expired - Fee Related CN201362163Y (en) 2008-12-30 2008-12-30 Double-motor power synthesis device for driving electric vehicles

Country Status (1)

Country Link
CN (1) CN201362163Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112172494A (en) * 2020-10-31 2021-01-05 郑酉香 Double-motor power synthesis device for driving electric vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112172494A (en) * 2020-10-31 2021-01-05 郑酉香 Double-motor power synthesis device for driving electric vehicle
CN112172494B (en) * 2020-10-31 2021-05-04 郑酉香 Double-motor power synthesis device for driving electric vehicle

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091216

Termination date: 20121230

C17 Cessation of patent right