CN111355340B - High-power-density two-gear electric driving device for integrally designed tracked vehicle - Google Patents

High-power-density two-gear electric driving device for integrally designed tracked vehicle Download PDF

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Publication number
CN111355340B
CN111355340B CN202010253195.6A CN202010253195A CN111355340B CN 111355340 B CN111355340 B CN 111355340B CN 202010253195 A CN202010253195 A CN 202010253195A CN 111355340 B CN111355340 B CN 111355340B
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China
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driving motor
oil
end cover
iii
motor
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CN202010253195.6A
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CN111355340A (en
Inventor
陈建文
欧阳湘军
高拯国
邱锰
王艳艳
谭平
黄静秋
米家宝
姜炎
钟玉那
朱刚
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Jianglu Machinery and Electronics Group Co Ltd
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Jianglu Machinery and Electronics Group Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/12—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of electric gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention discloses a high-power-density two-gear electric driving device for an integrated design tracked vehicle. The left two-gear transmission, the left driving motor, the right driving motor and the right two-gear transmission are coaxially arranged, and the driving motor controller is arranged above the left two-gear transmission and the right two-gear transmission; the high-voltage wire harness is respectively connected with the driving motor controller and the left driving motor, and the driving motor controller and the right driving motor. The electric driving device is a whole with compact structure, and has the advantages of high power density, light weight, small occupied space of the power cabin, no complex connecting pipelines, realization of integral hoisting, convenient replacement, high allowable working speed, good long-term running stability, simple and reliable sealing structure and the like.

Description

High-power-density two-gear electric driving device for integrated design tracked vehicle
Technical Field
The invention relates to an electric driving device for a vehicle, in particular to a high-power-density two-gear electric driving device for an integrated design tracked vehicle.
Background
The two-gear electric drive technology has the advantages of good dynamic property, low operation noise, wide speed regulation range, high energy conversion efficiency, high power transmission efficiency, capability of realizing braking energy recovery, easiness in realizing automatic control and the like; the crawler vehicle also has the advantages of high steering speed and stepless steering; meanwhile, the method does not depend on increasingly exhausted petroleum resources, and is suitable for the development requirement of new energy vehicles in the future; therefore, the two-gear electric drive technology is an important development direction of the future vehicle powertrain technology.
The existing double-gear electric driving device for the tracked vehicle based on double independent driving is composed of a left-side two-gear transmission, a left-side driving motor, a right-side two-gear transmission, a driving motor controller and a high-voltage wire harness. The existing double-gear electric driving device for the crawler based on double independent driving only carries out simple integrated design on a driving motor and a two-gear transmission on the same side, and the driving devices and driving motor controllers on two sides are distributed; in addition, the prior drive motor bearings are lubricated with grease. The existing two-gear electric drive system for the crawler based on double independent drives has the defects of low integration level, scattered arrangement, large occupied space and disordered electric wire harnesses; meanwhile, as the driving motor adopts grease lubrication, the bearing temperature is high and the reliability is poor when the driving motor runs at high speed; the existing driving system has the defect of low overall power density, and can not meet the mobility requirement of a large-tonnage vehicle under the condition of limited space of a power cabin.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-power-density two-gear electric driving device for an integrated design tracked vehicle, which has a simple structure and works reliably.
The technical scheme for solving the problems is as follows: the high-power-density two-gear electric driving device for the integrally designed tracked vehicle comprises a left two-gear transmission, a left driving motor, a right two-gear transmission, a driving motor controller and a high-voltage wire harness, wherein the left two-gear transmission, the left driving motor, the right driving motor and the right two-gear transmission are coaxially arranged, and the driving motor controller is arranged above the left two-gear transmission and the right two-gear transmission; the left two-gear transmission and the right two-gear transmission are structurally symmetrical; the power interface of the left driving motor, the power interface of the right driving motor and the power interface corresponding to the driving motor controller are uniformly distributed on the same side of the motor axis; the high-voltage wire harness is respectively connected with the driving motor controller and the left driving motor, and the driving motor controller and the right driving motor.
The high-power-density two-gear electric driving device for the integrally designed tracked vehicle is characterized in that an input shaft I is arranged on a left two-gear transmission; the left driving motor mainly comprises an end cover component I, a motor rotor I, a motor stator I, an end cover component II and a screw fastening sleeve component; the right side driving motor mainly comprises an end cover assembly III, a motor stator II, a motor rotor II, an end cover assembly IV and a stud fastening sleeve assembly; the right two-gear transmission is provided with an input shaft II; the high-voltage wire harness is connected with the driving motor controller through a right-angle plug, and the high-voltage wire harness is connected with the driving motor controller through a straight plug.
According to the high-power-density two-gear electric driving device for the integrally designed tracked vehicle, the end cover assembly I, the motor stator I and the motor rotor I are respectively structurally symmetrical to the end cover assembly IV, the motor stator II and the motor rotor II; the end cover component I, the end cover component II, the end cover component III and the end cover component IV are all concave towards the inside of the motor; the screw fastening sleeve group and the stud fastening sleeve group are distributed in a staggered mode in the circumferential direction, the motor stator I is connected with the end cover assembly II in a fastening mode through the screw fastening sleeve group, and the end cover assembly II, the end cover assembly III and the motor stator II are connected in a fastening mode through the stud fastening sleeve group.
According to the high-power-density two-gear electric driving device for the crawler vehicle with the integrated design, the input shaft I is provided with the inner circle I, the inner spline I and the oil passage hole I in a machining mode, the motor rotor I is provided with the bearing I and the bearing II and is provided with the outer spline I, the outer circle I, the oil passage hole II, the outer circle II, the oil passage hole III, the outer circle III and the throttling hole I in a machining mode; wherein the internal spline I of external spline I, excircle I and input shaft I, I cooperation in interior circle, oil duct hole II, orifice I all with III UNICOMs in oil duct hole, the outer lane of bearing I is installed in end cover subassembly I, the outer lane of bearing II is installed in end cover subassembly II.
According to the high-power-density two-gear electric driving device for the integrally designed tracked vehicle, the end cover assembly I is provided with the oil seal I and is provided with the annular groove I and the oil duct hole group I in a machining mode; wherein the seal lip of oil blanket I and II laminating of excircle of electric motor rotor I, annular I, oil duct punch combination I are located the I outside of oil blanket, annular I and I UNICOM of oil duct punch combination, I and the outside UNICOM of motor of oil duct punch combination.
Above-mentioned two grades of electric drive devices of high power density for tracked vehicle of integrated design, end cover subassembly II is equipped with oil blanket II to processing has annular II, oil duct punch combination II, interior circle II, wherein the seal lip of oil blanket II laminates with motor rotor I's excircle III, and annular II, oil duct punch combination II are located the II outsides of oil blanket, and annular II and II UNICOMs of oil duct punch combination, oil duct punch combination II and the outside UNICOM of motor.
According to the high-power-density two-gear electric driving device for the integrated design tracked vehicle, the input shaft II is provided with the inner circle III, the inner spline II and the oil channel hole VI, the motor rotor II is provided with the bearing III and the bearing IV, and is provided with the outer spline II, the outer circle V, the oil channel hole IV, the outer circle VI, the oil channel hole V, the throttling hole II and the outer circle VII; the outer spline II and the outer circle V are matched with the inner spline II and the inner circle III of the input shaft II, the oil channel hole IV and the throttling hole II are communicated with the oil channel hole V, the outer ring of the bearing III is arranged on the end cover assembly IV, and the outer ring of the bearing IV is arranged on the end cover assembly III.
According to the high-power-density two-gear electric driving device for the integrally designed tracked vehicle, the end cover assembly III is provided with the oil seal III and is provided with the annular groove III, the oil duct hole group III and the excircle IV in a machining mode; the sealing lip of the oil seal III is attached to the excircle VII of the motor rotor II, the annular groove III and the oil duct hole group III are located on the outer side of the oil seal III, the annular groove III is communicated with the oil duct hole group III, the oil duct hole group III is communicated with the outside of the motor, and the excircle IV is matched with the inner circle II of the end cover assembly II.
According to the high-power-density two-gear electric driving device for the crawler vehicle with the integrated design, the end cover assembly IV is provided with the oil seal V, and is provided with the annular groove IV and the oil duct hole group IV in a processing mode, wherein a sealing lip of the oil seal V is attached to the excircle VI of the motor rotor II, the annular groove IV and the oil duct hole group IV are located on the outer side of the oil seal V, the annular groove IV is communicated with the oil duct hole group IV, and the oil duct hole group IV is communicated with the outside of the motor.
The principle of the invention is as follows:
integrated integration of electric drive device
According to the invention, the transmission and the driving motor share the end cover on the same side, one end of the input shaft of the transmission is arranged on the motor rotor of the driving motor, the transmission and the motor rotor share the bearing and are supported on the shared end cover, and meanwhile, the motor end covers are all concave towards the inside of the motor, so that the deep integration of the transmission and the driving motor is realized, and the axial size of the driving device is greatly reduced; the double-side motor back end covers are fastened and connected through the stud fastening suite to realize integration of the double-side driving motors; the driving motor controllers are arranged above the transmissions on the two sides, and the driving motor controllers are electrically connected with the driving motors on the two sides through the high-voltage wire harnesses, so that the integration of the driving motor controllers is realized. The invention realizes the high integration of the driving device by the deep integration of the transmission and the driving motor, the integration of the motors on both sides and the integration of the driving motor controller.
Drive motor bearing oil lubrication
The invention provides lubricating oil through the oil duct hole of the input shaft of the transmission, and the lubricating oil is distributed to each bearing of the driving motor through the oil duct hole of the motor rotor, so that the lubrication of each bearing of the driving motor is realized.
Drive motor rotor seal
The invention realizes the sealing of the rotating shaft of the motor rotor through the oil seal. Simultaneously through the oil duct punch combination outside the oil blanket, when experimental test, can realize the inspection to the sealed validity of oil blanket under the condition that need not to decompose the motor end cover, when the oil blanket takes place the seepage under abnormal conditions, lubricating oil can flow from the outside oil duct punch combination of oil blanket to it is inside to prevent that lubricating oil from getting into the motor. When the driving device normally operates, the outer end of the oil duct hole group outside the oil seal is sealed by a screw plug.
The invention has the beneficial effects that:
1. the electric driving device is a whole with compact structure, and has the advantages of high power density, light weight, small space occupation of the power cabin, no complex connecting pipelines, realization of integral hoisting, convenient replacement and the like.
2. The electric driving device has the advantage of small axial size, and can meet the requirement of a crawler with larger tonnage under the condition that the width of the power cabin is limited.
3. The bearing of the driving motor of the electric driving device adopts oil lubrication, so that the maximum working speed and the long-term running stability of the driving motor are greatly improved.
4. The sealing device for the rotating shaft of the driving motor of the electric driving device has the advantages of simple structure, reliable sealing and convenient inspection.
5. According to the electric driving device, the problems of poor electromagnetic compatibility and poor maintainability caused by too long lead wires due to the dispersed layout of the driving motor controller are solved by integrating the driving motor controller; and a right-angle joint is adopted at the position of a driving motor controller through the high-voltage wire harness, and a straight joint is adopted at the position of the driving motor, so that the short and tidy arrangement of the high-voltage wire harness is realized.
Drawings
Fig. 1 is a schematic structural diagram of a conventional scheme.
Fig. 2 is an external view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
FIG. 4 is a partial view of the left common end cap of the present invention.
Fig. 5 is a partial view of a double-sided motor back end cap of the present invention.
FIG. 6 is a partial view of the right common end cap of the present invention.
In the figure: 1. a left two-gear transmission, 2, a left driving motor, 3, a right driving motor, 4, a right two-gear transmission, 5, a driving motor controller, 6, a high-voltage wire harness, 11, an input shaft I, 21, an end cover assembly I, 22, a motor rotor I, 23, a motor stator I, 24, an end cover assembly II, 25, a screw fastening sleeve assembly, 31, an end cover assembly III, 32, a motor stator II, 33, a motor rotor II, 34, an end cover assembly IV, 35, a stud fastening sleeve assembly, 41, an input shaft II, 61, a right-angle plug, 62, a straight plug, 111, an inner circle I, 112, an inner spline I, 113, an oil passage hole I, 211, an oil seal I, 212, an annular groove I, 213, an oil passage hole I, 221, an outer spline I, 222, an outer circle I, 223, a bearing I, 224, an oil passage hole II, 225, an outer circle II, 226, an oil passage hole, 227, an outer circle, 228, a bearing II, 229. the oil-saving bearing comprises an orifice I, 241, an oil seal II, 242, an annular groove II, 243, an oil passage hole group II, 244, an inner circle II, 311, an oil seal III, 312, an annular groove III, 313, an oil passage hole group III, 314, an outer circle IV, 331, an outer spline II, 332, an outer circle V, 333, a bearing III, 334, an oil passage hole IV, 335, an outer circle VI, 336, an oil passage hole V, 337, an orifice II, 338, an outer circle VII, 339, a bearing IV, 341, an oil seal V, 342, an annular groove IV, 343, an oil passage hole group IV, 411, an inner circle III, 412, an inner spline II, 413 and an oil passage hole VI.
Detailed Description
With reference to the accompanying drawings, the present invention is realized in such a manner:
the invention relates to a high-power-density two-gear electric driving device for an integrated design tracked vehicle, which consists of a left two-gear transmission 1, a left driving motor 2, a right driving motor 3, a right two-gear transmission 4, a driving motor controller 5 and a high-voltage wire harness 6. The left two-gear transmission 1, the left driving motor 2, the right driving motor 3 and the right two-gear transmission 4 are coaxially arranged, and the driving motor controller 5 is installed above the left two-gear transmission 1 and the right two-gear transmission 4; the left two-gear transmission 1 and the right two-gear transmission 4 are structurally symmetrical; the power interface of the left driving motor 2, the power interface of the right driving motor 3 and the corresponding power interface of the driving motor controller 5 are uniformly distributed on the same side; the high-voltage wire harness 6 is respectively connected with the driving motor controller 5 and the left driving motor 2, and the driving motor controller 5 and the right driving motor 3.
The left two-gear transmission 1 is provided with an input shaft I11; the left driving motor mainly comprises an end cover component I21, a motor rotor I22, a motor stator I23, an end cover component II 24 and a screw fastening sleeve component 25; the right driving motor 3 mainly comprises an end cover assembly III 31, a motor stator II 32, a motor rotor II 33, an end cover assembly IV 34 and a stud fastening sleeve assembly 35; the right two-gear transmission 4 is provided with an input shaft II 41; the high-voltage wire harness 6 is connected with the driving motor controller 5 through a right-angle plug 61, and is connected with the driving motor through a straight plug 62. The end cover assembly I21, the motor rotor I22 and the motor stator I23 are structurally symmetrical to the end cover assembly IV 34, the motor rotor 33 and the motor stator II 32 respectively; the end cover component I21 and the end cover component II 24 are concave into the left-side driving motor 2, and the end cover component III 31 and the end cover component IV 34 are concave into the right-side driving motor 3; the screw fastening sleeve group 25 and the stud fastening sleeve group 35 are distributed in a staggered mode in the circumferential direction, the motor stator I23 is fastened and connected with the end cover component II 24 through the screw fastening sleeve group 25, and the end cover component II 24, the end cover component III 31 and the motor stator II 32 are fastened and connected through the stud fastening sleeve group 35.
The input shaft I11 is provided with an inner circle I111, an inner spline I112 and an oil channel hole I113.
The motor rotor I22 is provided with a bearing I223 and a bearing II 228, and is provided with an external spline I221, an excircle I222, an oil channel hole II 224, an excircle II 225, an oil channel hole III 226, an excircle III 227 and a throttling hole I229 in a machining mode; wherein the external splines I221, the excircle I222 are matched with the internal splines I112 and the internal circles I111 of the input shaft I11, the oil passage holes II 224 and the throttling holes I229 are communicated with the oil passage holes III 226, the outer ring of the bearing I223 is installed on the end cover component I21, and the outer ring of the bearing II 228 is installed on the end cover component II 24.
The end cover component I21 is provided with an oil seal I211, and is provided with an annular groove I212 and an oil duct hole group I213 in a machining mode; wherein the seal lip of oil blanket I211 and II 225 laminatings of excircle of electric motor rotor I22, I212 of annular groove, I213 of oil duct hole group are located the I211 outside of oil blanket, I212 of annular groove and I213 UNICOM of oil duct hole group, I213 of oil duct hole group and the outside UNICOM of motor.
The end cover assembly II 24 is provided with an oil seal II 241, an annular groove II 242, an oil passage hole group II 243 and an inner circle II 244 are machined, a sealing lip of the oil seal II 241 is attached to an outer circle III 227 of the motor rotor I22, the annular groove II 242 and the oil passage hole group II 243 are located on the outer side of the oil seal II 241, the annular groove II 242 is communicated with the oil passage hole group II 243, and the oil passage hole group II 243 is communicated with the outside of the motor.
The input shaft II 41 is provided with an inner circle III 411, an inner spline II 412 and an oil passage hole VI 413.
The motor rotor II 33 is provided with a bearing III 333 and a bearing IV 339, and is provided with an external spline II 331, an excircle V332, an oil channel hole IV 334, an excircle VI 335, an oil channel hole V336, a throttling hole II 337 and an excircle VII 338 in a machining mode; the outer spline II 331 and the outer circle V332 are matched with the inner spline II 412 and the inner circle III 411 of the input shaft II 41, the oil channel hole IV 334 and the throttling hole II 337 are communicated with the oil channel hole V336, the outer ring of the bearing III 333 is installed on the end cover component IV 34, and the outer ring of the bearing IV 339 is installed on the end cover component III 31.
The end cover component III 31 is provided with an oil seal III 311, and is processed with a ring groove III 312, an oil duct hole group III 313 and an excircle IV 314; the sealing lip of the oil seal III 311 is attached to an outer circle VII 338 of the motor rotor II 33, the annular groove III 312 and the oil passage hole group III 313 are located on the outer side of the oil seal III 311, the annular groove III 312 is communicated with the oil passage hole group III 313, the oil passage hole group III 313 is communicated with the outside of the motor, and the outer circle IV 314 is matched with an inner circle II 244 of the end cover component II 24.
An oil seal V341 is arranged on the end cover assembly IV 34, an annular groove IV 342 and an oil duct hole group IV 343 are machined, a sealing lip of the oil seal V341 is attached to an excircle VI 335 of the motor rotor II 33, the annular groove IV 342 and the oil duct hole group IV 343 are located on the outer side of the oil seal V341, the annular groove IV 342 is communicated with the oil duct hole group IV 343, and the oil duct hole group IV 343 is communicated with the outside of the motor.
The invention has the main effects that a left two-gear transmission 1, a left driving motor 2, a right driving motor 3, a right two-gear transmission 4 and a driving motor controller 5 are integrated into a whole with a simple and compact structure; distributing lubricating oil to bearings of a driving motor, namely a bearing I223, a bearing II 228, a bearing III 333 and a bearing IV 339; the motor rotor I22 and the end cover component I21, the motor rotor I22 and the end cover component II 24, the motor rotor II 33 and the end cover component III 31, and the motor rotor II 33 and the end cover component IV 34 are respectively sealed, and the effectiveness of sealing is inspected on the premise of not disassembling and assembling.
The principle of the invention is as follows:
integrated integration of electric drive device
Through two grades of derailleurs 1 in left side and the sharing end cover subassembly I21 of left side driving motor 2, 11 one end of input shaft of two grades of derailleurs 1 in left side are installed in left side driving motor 2's electric motor rotor I22, with electric motor rotor I22 sharing bearing I223 and support in end cover subassembly I21, end cover subassembly I21 simultaneously, end cover subassembly II 24 is all concave inside the left side driving motor 2, thereby realize two grades of derailleurs 1 in left side and left side driving motor 2's degree of depth integration, and reduced axial dimensions by a wide margin, two grades of derailleurs 4 in right side and right side driving motor 3 are vice versa. And the end cover assembly II 24, the end cover assembly III 31 and the motor stator II 32 are tightly connected through the stud fastening kit 35, so that the left driving motor 2 and the right driving motor 3 are integrated. The driving motor controller 5 is arranged above the left two-gear transmission 1 and the right two-gear transmission 4, and the high-voltage wiring harness 6 is used for realizing the electric connection of the driving motor controller 5 with the left driving motor 2 and the right driving motor 3, so that the integration of the driving motor controller 5 is realized. According to the invention, the high integration of the driving device is realized through the deep integration of the left two-gear transmission 1 and the left driving motor 2, the deep integration of the right two-gear transmission 4 and the right driving motor 3, the integration of the left driving motor 2 and the right driving motor 3 and the integration of the driving motor controller 5.
Drive motor bearing oil lubrication
Lubricating oil is provided by an oil channel hole I113 of an input shaft I11 of the left two-gear transmission 1, passes through an oil channel hole III 226 of a motor rotor I22 and respectively passes through an oil channel hole II 224 and an orifice I229, and lubrication of a bearing I223 and a bearing II 228 of a left driving motor 2 is realized; the bearing lubrication of the right drive motor 3 is the same.
Drive motor rotor seal
The invention realizes the sealing between the motor rotor I22 and the end cover component I21 by sealing the excircle II 225 by the oil seal I211, and the sealing between the motor rotor I22 and the end cover component II 24, between the motor rotor II 33 and the end cover component III 31 and between the motor rotor II 33 and the end cover component IV 34 are the same. Through I213 at the outside oil duct punch combination of I211 of oil blanket, need not to disassemble under the condition of motor end cover 121, can realize the inspection to the sealed validity of I211 of oil blanket, when I211 of oil blanket takes place the seepage under abnormal conditions simultaneously, lubricating oil can flow out from I213 of oil duct punch combination to it is inside effectively to prevent lubricating oil entering left side driving motor 2. When the driving device normally operates, the outer end of the oil passage hole group I213 outside the oil seal I211 is sealed by a screw plug. The oil passage hole group II 243, the oil passage hole group III 313 and the oil passage hole group IV 343 are the same.

Claims (5)

1. The high-power-density two-gear electric driving device for the integrally designed tracked vehicle is characterized by comprising a left two-gear transmission (1), a left driving motor (2), a right driving motor (3), a right two-gear transmission (4), a driving motor controller (5) and a high-voltage wire harness (6), wherein the left two-gear transmission (1), the left driving motor (2), the right driving motor (3) and the right two-gear transmission (4) are coaxially arranged; the driving motor controller (5) is arranged above the left two-gear transmission (1) and the right two-gear transmission (4); the high-voltage wire harness (6) is respectively connected with the driving motor controller (5) and the left driving motor (2), and the driving motor controller (5) and the right driving motor (3); the left two-gear transmission (1) and the right two-gear transmission (4) are symmetrical in structure; the power interface of the left driving motor (2), the power interface of the right driving motor (3) and the corresponding power interface of the driving motor controller (5) are uniformly distributed on the same side;
the left two-gear transmission (1) is provided with an input shaft I (11); the left driving motor consists of an end cover component I (21), a motor rotor I (22), a motor stator I (23), an end cover component II (24) and a screw fastening sleeve component group (25); the right driving motor (3) consists of an end cover component III (31), a motor stator II (32), a motor rotor II (33), an end cover component IV (34) and a stud fastening sleeve component (35); the right two-gear transmission (4) is provided with an input shaft II (41); the high-voltage wire harness (6) and the driving motor controller (5) are connected through a right-angle plug (61), and the high-voltage wire harness and the driving motor controller are connected through a straight plug (62);
the end cover component I (21), the motor rotor I (22) and the motor stator I (23) are respectively symmetrical to the end cover component IV (34), the motor rotor II (33) and the motor stator II (32) in structure; the left two-gear transmission (1) and the left driving motor (2) share an end cover assembly I (21), and the right two-gear transmission (4) and the right driving motor (3) share an end cover assembly IV (34); the end cover component I (21) and the end cover component II (24) are concave into the left side driving motor (2), and the end cover component III (31) and the end cover component IV (34) are concave into the right side driving motor (3); the screw fastening sleeve group (25) and the stud fastening sleeve group (35) are distributed in a staggered mode in the circumferential direction, the motor stator I (23) and the end cover assembly II (24) are fastened and connected through the screw fastening sleeve group (25), and the end cover assembly II (24), the end cover assembly III (31) and the motor stator II (32) are fastened and connected through the stud fastening sleeve group (35);
the input shaft I (11) is provided with an inner circle I (111), an inner spline I (112) and an oil channel hole I (113) in a machining mode, a motor rotor I (22) is provided with a bearing I (223) and a bearing II (228), and is provided with an outer spline I (221), an outer circle I (222), an oil channel hole II (224), an outer circle II (225), an oil channel hole III (226), an outer circle III (227) and an orifice I (229) in a machining mode; the left driving motor bearing I is lubricated by lubricating oil provided by the oil channel hole I of the input shaft I of the left two-gear transmission through the oil channel hole III of the motor rotor I and the oil channel hole II of the motor rotor I, and the bearing II of the left driving motor is lubricated by the oil channel hole III of the motor rotor I and the throttle hole I of the motor rotor I; the outer ring of the bearing I (223) is arranged on the end cover component I (21), and the outer ring of the bearing II (228) is arranged on the end cover component II (24);
the end cover component I (21) is provided with an oil seal I (211), and is provided with an annular groove I (212) and an oil duct hole group I (213) in a machining mode; wherein the seal lip of oil blanket I (211) and the excircle II (225) laminating of electric motor rotor I (22), annular I (212), oil duct punch combination I (213) are located I (211) one side towards left side driving motor (2) of oil blanket, annular I (212) and I (213) UNICOM of oil duct punch combination, and I (213) of oil duct punch combination are inside with the outside UNICOM of motor in order to prevent that lubricating oil from getting into left side driving motor.
2. The high-power-density two-gear electric driving device for the integrated design crawler vehicle is characterized in that an end cover assembly II (24) is provided with an oil seal II (241) and is provided with an annular groove II (242), an oil duct hole group II (243) and an inner circle II (244), wherein a sealing lip of the oil seal II (241) is attached to an outer circle III (227) of a motor rotor I (22), the annular groove II (242) and the oil duct hole group II (243) are located on one side, facing the left driving motor (2), of the oil seal II (241), the annular groove II (242) is communicated with the oil duct hole group II (243), and the oil duct hole group II (243) is communicated with the outside of the motor to prevent lubricating oil from entering the inside of the left driving motor.
3. The high-power-density two-gear electric driving device for the integrated design tracked vehicle as claimed in claim 1, wherein an inner circle III (411), an inner spline II (412) and an oil passage hole VI (413) are machined on the input shaft II (41), a bearing III (333) and a bearing IV (339) are arranged on the motor rotor II (33), and an outer spline II (331), an outer circle V (332), an oil passage hole IV (334), an outer circle VI (335), an oil passage hole V (336), a throttling hole II (337) and an outer circle VII (338) are machined on the motor rotor II (33); the outer spline II (331), the outer circle V (332) are matched with the inner spline II (412) and the inner circle III (411) of the input shaft II (41), the oil channel hole IV (334) and the throttling hole II (337) are communicated with the oil channel hole V (336), the oil channel hole V (336) axially penetrates through two ends of the motor rotor II (33), lubricating oil provided by the oil channel hole VI (413) of the input shaft II (41) of the right two-gear transmission lubricates a bearing III (333) of a right driving motor through the oil channel hole V (336) and the oil channel hole IV (334) of the motor rotor II (33), and lubricates a bearing IV (339) of the right driving motor through the oil channel hole V (336) and the throttling hole II (337) of the motor rotor II (33); the outer ring of the bearing III (333) is arranged on the end cover component IV (34), and the outer ring of the bearing IV (339) is arranged on the end cover component III (31).
4. The high-power-density two-gear electric driving device for the integrated design crawler vehicle as recited in claim 1, wherein end cover assembly III (31) is provided with oil seal III (311) and is processed with ring groove III (312), oil passage hole group III (313) and excircle IV (314); wherein the seal lip of oil blanket III (311) and excircle VII (338) laminating of electric motor rotor II (33), annular III (312), oil duct group III (313) are located oil blanket III (311) towards one side of right side driving motor, annular III (312) and oil duct group III (313) UNICOM, inside oil duct group III (313) and the outside UNICOM of motor in order to prevent that lubricating oil from getting into right side driving motor, excircle IV (314) and the cooperation of the interior circle II (244) of end cover subassembly II (24).
5. The high-power-density two-gear electric driving device for the integrated design crawler vehicle as claimed in claim 1, wherein an end cover assembly IV (34) is provided with an oil seal V (341), and is provided with an annular groove IV (342) and an oil duct hole group IV (343), wherein a sealing lip of the oil seal V (341) is attached to an outer circle VI (335) of a motor rotor II (33), the annular groove IV (342) and the oil duct hole group IV (343) are located on one side of the oil seal V (341) facing the right driving motor, the annular groove IV (342) is communicated with the oil duct hole group IV (343), and the oil duct hole group IV (343) is communicated with the outside of the motor to prevent lubricating oil from entering the inside of the right driving motor.
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Citations (6)

* Cited by examiner, † Cited by third party
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CN203115457U (en) * 2013-01-22 2013-08-07 西安正麒电气有限公司 Motor bearing oil lubrication structure
CN106411021A (en) * 2016-10-08 2017-02-15 上海川也电机有限公司 Sealing device for motor lubricating oil way
CN107031373A (en) * 2015-09-23 2017-08-11 西门子公司 Motor, motor vehicles and the method for running motor
CN109347251A (en) * 2018-10-17 2019-02-15 江麓机电集团有限公司 Integrated vehicle drive motor means
CN109955702A (en) * 2019-03-25 2019-07-02 重庆长安新能源汽车科技有限公司 A kind of vehicle and its integrated power drive system assembly
CN209305714U (en) * 2018-12-06 2019-08-27 江麓机电集团有限公司 A kind of high integration endless-track vehicle electric actuator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203115457U (en) * 2013-01-22 2013-08-07 西安正麒电气有限公司 Motor bearing oil lubrication structure
CN107031373A (en) * 2015-09-23 2017-08-11 西门子公司 Motor, motor vehicles and the method for running motor
CN106411021A (en) * 2016-10-08 2017-02-15 上海川也电机有限公司 Sealing device for motor lubricating oil way
CN109347251A (en) * 2018-10-17 2019-02-15 江麓机电集团有限公司 Integrated vehicle drive motor means
CN209305714U (en) * 2018-12-06 2019-08-27 江麓机电集团有限公司 A kind of high integration endless-track vehicle electric actuator
CN109955702A (en) * 2019-03-25 2019-07-02 重庆长安新能源汽车科技有限公司 A kind of vehicle and its integrated power drive system assembly

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