CN115593207A - Double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle for mining truck - Google Patents

Double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle for mining truck Download PDF

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Publication number
CN115593207A
CN115593207A CN202211414770.1A CN202211414770A CN115593207A CN 115593207 A CN115593207 A CN 115593207A CN 202211414770 A CN202211414770 A CN 202211414770A CN 115593207 A CN115593207 A CN 115593207A
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Prior art keywords
level
driven gear
transmission device
shaft
motor
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CN202211414770.1A
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Chinese (zh)
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付彬
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Shandong Huaxing Precision Machinery Co ltd
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Shandong Huaxing Precision Machinery Co ltd
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Priority to CN202211414770.1A priority Critical patent/CN115593207A/en
Publication of CN115593207A publication Critical patent/CN115593207A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • B60K1/02Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

The invention belongs to the field of mining trucks, in particular to a double-motor three-level three-intermediate-shaft transmission wheel side electric drive axle for a mining truck, which comprises a left wheel side transmission module with a left wheel side transmission device and a right wheel side transmission module with a right wheel side transmission device, wherein the left motor drives the left wheel side transmission device through the left three-level three-intermediate-shaft transmission device, and the right motor drives the right wheel side transmission device through the right three-level three-intermediate-shaft transmission device; for a large-tonnage mining truck, double-axle driving can be adopted, each single axle adopts double motors, three-level three-intermediate-shaft transmission and wheel-side transmission, the double motors are arranged in the middle and are not offset, the requirement on the strength of the special requirement of an ore truck product under the use condition can be met, the three-level three-intermediate-shaft structure is compact, the requirement on large speed ratio can be met through three-level transmission under the requirement on the axial vacant size and ground clearance, the three intermediate shafts can meet the requirement on the strength of a large-torque transmission gear, and meanwhile, the three intermediate shafts can realize stable and reliable power transmission.

Description

Double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle for mining truck
Technical Field
The invention relates to the field of mining trucks, in particular to a double-motor three-level three-intermediate-shaft transmission wheel side electric drive axle for a mining truck.
Background
With the continuous development of pure electric vehicle technology, electric drive assembly products of passenger vehicles and commercial vehicles tend to be highly integrated and form industrialization, and the electric drive assembly products are urgently required to be suitable for the integrated development of an electric drive system of a pure electric platform vehicle type for non-highway mine truck types. The electric drive axle is used as a pure electric core part, integrates a motor, a transmission system, wheels and a braking system, converts electric energy of a battery into mechanical energy meeting the requirement of the whole vehicle, and has the problems of poor integration degree of a driving and transmission system, poor reliability of a gear shifting mechanism, discontinuous power in a gear shifting process, poor passing performance under special working conditions when the intelligent control wheel edge of the whole vehicle cannot be independently controlled, large occupied space of the whole set of power and transmission system, heavy weight and the like.
Disclosure of Invention
The invention mainly aims to provide a double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle for a mining truck, which can adopt double-axle drive for a large-tonnage mining truck, each single axle adopts double-motor + three-level three-intermediate-shaft transmission + wheel-side transmission, the double motors are arranged in the middle and have no offset, the requirement on the special requirement on the mining truck product on the working condition intensity can be met, the three-level three-intermediate-shaft has a compact structure, the requirement on large speed ratio can be realized through three-level transmission under the condition of meeting the requirements on axial vacant size and ground clearance, the three intermediate-shaft can realize the requirement on large-torque transmission gear intensity, meanwhile, the three intermediate-shaft can realize stable and reliable power transmission, and the motor and the three-level three-intermediate-shaft transmission module adopt an integrated design of a shared end cover, so that the structure is compact and the product quality and the cost can be reduced.
In order to achieve the purpose, the invention adopts the technical scheme that: a double-motor three-level three-intermediate-shaft transmission wheel side electric drive axle for a mining truck comprises a left wheel side transmission module with a left wheel side transmission device and a right wheel side transmission module with a right wheel side transmission device, wherein a left motor drives the left wheel side transmission device through the left three-level three-intermediate-shaft transmission device, and a right motor drives the right wheel side transmission device through the right three-level three-intermediate-shaft transmission device;
the left three-stage three-intermediate-shaft transmission device and the right three-stage three-shaft transmission device have the same structure; the left three-level three-interval shaft transmission device comprises an one-level driving gear connected with a left motor output shaft in a floating mode, the one-level driving gear is meshed with an one-level driven gear, the one-level driven gear and a second-level driving gear rotate coaxially and synchronously, the second-level driven gear is meshed with the second-level driving gear, the second-level driven gear and a third-level driving gear rotate coaxially and synchronously, the third-level driven gear is meshed with the third-level driving gear, and the third-level driven gear is arranged in a floating mode and is connected with a left wheel side transmission device in a transmission mode.
One-level driven gear is three, and three one-level driven gear evenly distributed is all with one-level driving gear meshing around the one-level driving gear, and three one-level driven gear is in the coplanar.
Three one-level driven gear is coaxial with three second grade driving gear respectively, and every one-level driven gear sets up on a one-level jackshaft with a second grade driving gear, and three one-level jackshaft parallel arrangement each other, and three one-level jackshaft evenly distributed is on the circle of using the one-level driving gear as the centre of a circle.
The number of the secondary driven gears is three, the secondary driven gears and the secondary driving gears are arranged in a crossed mode, and each secondary driven gear is meshed with two secondary driving gears. Three second grade driven gear is coaxial with three tertiary driving gear respectively, and every second grade driven gear sets up on a second grade jackshaft with a tertiary driving gear, and the second grade jackshaft is parallel with the one-level jackshaft, and three second grade jackshaft circumference equipartition is arranged, and the second grade jackshaft is arranged with the one-level jackshaft alternately.
The three-level driven gear is one, the three-level driving gears are all meshed with the three-level driven gear, the three-level driving gears are evenly distributed on a circle with the three-level driven gear as the circle center, and the three-level driving gears are on the same plane.
And a double-row bearing is arranged between an output shaft of the three-stage driven gear and a shell of the left three-stage three-intermediate-shaft transmission device. The first-stage intermediate shaft and the second-stage intermediate shaft are both connected with a shell of the left third-stage three-intermediate-shaft transmission device through bearings.
It can be seen from the above-mentioned description, this scheme is connected through floating with the one-level driving gear, shunt through 3 one-level driven gear, the demand strength and the size of one-level driven gear have been reduced simultaneously to the promotion moment of torsion, one-level driven gear is coaxial with the second grade driving gear (one-level jackshaft), three one-level jackshaft circumference equipartition is arranged, can guarantee the load equipartition of reposition of redundant personnel, the transmission is steady reliable, power shunts the back through three first jackshaft, transmit respectively to second grade driven gear through the second grade driving gear, second grade driven gear is coaxial with tertiary driving gear (second grade jackshaft), three second grade jackshaft circumference equipartition is arranged, also can guarantee this level power transmission steady reliable, second jackshaft and one-level jackshaft are at circumference space cross arrangement, can effectively reduce the space of arranging, compact structure makes, do benefit to the lubrication of gears at different levels simultaneously. According to the ground clearance of the whole vehicle and the clearance requirements of peripheral parts of the frame and the suspension system, the vehicle suspension system can be realized by adjusting the circumferential space arrangement of the first-stage intermediate shaft and the second-stage intermediate shaft. Power transmits to tertiary driven gear through the tertiary driving gear of second grade jackshaft, and three tertiary driving gear carries out energy reflux and exports to wheel limit reduction gears to tertiary driven gear, and tertiary driven gear floats the design, guarantees the transmission reliability performance.
Drawings
FIG. 1 is a schematic view of a junction electric drive bridge assembly according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a left-stage three-intermediate-shaft transmission device.
Fig. 3 is a schematic view of the gear structure of the left three-stage three-countershaft transmission.
FIG. 4 is a front view of the input end of the gear structure of the left three-stage three-countershaft transmission.
FIG. 5 is a front view of the output end of the gear structure of the left three-stage three-countershaft transmission.
In the figure, 1 is a left wheel; 2 is a right wheel; 3 is a left motor; 4 is a right motor; 5 is a left wheel transmission device; 6 is a left three-level three-intermediate shaft transmission device; 7 is a right three-level three-intermediate shaft transmission device; 8 is a right wheel transmission device; 9 is a left motor output shaft; 10 is a primary driving gear; 11 is a first-stage driven gear, 12 is a second-stage driving gear, 13 is a second-stage driven gear, 14 is a third-stage driving gear, 15 is a third-stage driven gear, 16 is an output shaft of the third-stage driven gear, 17 is a double-row bearing, and 18 is a bearing.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The attached drawings show that the double-motor three-level three-intermediate-shaft transmission wheel side electric drive axle for the mining truck comprises a left wheel side transmission module with a left wheel side transmission device 5, a left wheel 1, a right wheel side transmission module with a right wheel side transmission device 8 and a right wheel 2, wherein a left motor 3 drives the left wheel side transmission device 5 through a left three-level three-intermediate-shaft transmission device 6, and a right motor 4 drives the right wheel side transmission device 8 through a right three-level three-intermediate-shaft transmission device 7; the right wheel-side transmission device 8 and the left wheel-side transmission device 5 are both common devices.
The left three-stage three-intermediate-shaft transmission device 6 and the right three-stage three-shaft transmission device 7 have the same structure; left third level three-interval shaft transmission 6 include with the unsteady one-level driving gear 10 of being connected of left motor output shaft 9, one-level driving gear 10 and the meshing of one-level driven gear 11, one-level driven gear 11 and the coaxial synchronous rotation of second grade driving gear 12, second grade driven gear 13 and the meshing of second grade driving gear 12, second grade driven gear 13 and the coaxial and synchronous rotation of tertiary driving gear 14, tertiary driven gear 15 and the meshing of tertiary driving gear 14, tertiary driven gear 15 floats to set up and is connected the transmission with left wheel limit transmission 5. One-level driven gear 11 be three, three one-level driven gear 11 evenly distributed is around one-level driving gear 10, three one-level driven gear 11 all with one-level driving gear 10 meshing, and three one-level driven gear 11 is in the coplanar.
Three one-level driven gears 11 are coaxial with three second-level driving gears 12 respectively, each one-level driven gear 11 and one second-level driving gear 12 are arranged on one-level intermediate shaft, the three one-level intermediate shafts are arranged in parallel, the three one-level intermediate shafts are evenly distributed on a circle with the one-level driving gear 11 as the circle center, the three second-level driven gears 13 are arranged in a crossed mode, the second-level driven gears 13 are arranged with the second-level driving gears 12, and each second-level driven gear 13 is meshed with the two second-level driving gears 12.
Three second grade driven gear 13 is coaxial with three tertiary driving gear 14 respectively, and every second grade driven gear 13 sets up on a second grade jackshaft with a tertiary driving gear 14, and the second grade jackshaft is parallel with the one-level jackshaft, and three second grade jackshaft circumference equipartition are arranged, and the second grade jackshaft is alternately arranged with the one-level jackshaft. Three tertiary driven gear 15 is one, and three tertiary driving gear 14 all meshes with tertiary driven gear 15, and three tertiary driving gear 14 evenly distributed is on the circle of using tertiary driven gear 15 as the centre of a circle, and three tertiary driving gear 14 is in the coplanar.
A double-row bearing 17 is arranged between an output shaft of the three-stage driven gear 15 and a shell of the left three-stage three-intermediate shaft transmission device 6. The first-stage intermediate shaft and the second-stage intermediate shaft are both connected with the shell of the left third-stage three-intermediate-shaft transmission device 6 through a bearing 18.
Through the matching design of motor performance parameters and transmission speed ratio and the double-motor independent drive, a speed change mechanism and a differential mechanism can be eliminated compared with the traditional product, the same power output can be realized under the condition of no gear change, the differential requirement is realized through double-motor control, the structure simplification and the high integration of the product can be realized, and the greater benefit of the whole vehicle operation can be realized. Meanwhile, the double-motor control is more beneficial to the intelligent whole-car control of the mine car products under special use conditions. Compared with a single-stage or planetary-row transmission wheel-side motor drive axle, the invention adopts a three-stage and three-intermediate-shaft transmission form, and can ensure the transmission output of large speed ratio and large torque. Compared with a multi-gear three-intermediate-shaft transmission mode, the single-gear three-level transmission mode is adopted, the power interruption problem of gear shifting and the efficiency loss problem of gear shifting are solved, meanwhile, the single-gear three-level transmission mode can achieve large speed ratio design, and the power performance requirement of the whole vehicle is met. For the large torque output required by the 120T mine truck, and under the condition of meeting ground clearance and the clearance between the upper jump and peripheral parts, the three-stage transmission speed ratio can be designed to be more than 35, the three-stage transmission speed ratio is flexibly adjusted, and the speed ratio can be adjusted according to different motor types to comprehensively meet the performance output of the whole vehicle.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (8)

1. The utility model provides a three jackshaft drive wheel limit electric drive axles of bi-motor tertiary for mining truck which characterized in that: the left wheel side transmission module is provided with a left wheel side transmission device, the right wheel side transmission module is provided with a right wheel side transmission device, a left motor drives the left wheel side transmission device through a left three-stage three-intermediate shaft transmission device, and a right motor drives the right wheel side transmission device through a right three-stage three-intermediate shaft transmission device;
the left three-stage three-intermediate-shaft transmission device and the right three-stage three-shaft transmission device have the same structure;
the left three-level three-interval shaft transmission device comprises an one-level driving gear connected with a left motor output shaft in a floating mode, the one-level driving gear is meshed with an one-level driven gear, the one-level driven gear and a second-level driving gear rotate coaxially and synchronously, the second-level driven gear is meshed with the second-level driving gear, the second-level driven gear and a third-level driving gear rotate coaxially and synchronously, the third-level driven gear is meshed with the third-level driving gear, and the third-level driven gear is arranged in a floating mode and is connected with a left wheel side transmission device in a transmission mode.
2. The mining truck-used double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle according to claim 1, characterized in that:
the one-level driven gear be three, three one-level driven gear evenly distributed is around the one-level driving gear, three one-level driven gear all with one-level driving gear meshing, and three one-level driven gear is in the coplanar.
3. The mining truck-used double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle according to claim 2, characterized in that:
three one-level driven gear is coaxial with three second grade driving gear respectively, and every one-level driven gear sets up on a one-level jackshaft with a second grade driving gear, and three one-level jackshaft parallel arrangement each other, and three one-level jackshaft evenly distributed is on the circle of using the one-level driving gear as the centre of a circle.
4. The mining truck-used double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle according to claim 3, characterized in that:
the number of the secondary driven gears is three, the secondary driven gears and the secondary driving gears are arranged in a crossed mode, and each secondary driven gear is meshed with two secondary driving gears.
5. The mining truck-used double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle according to claim 4, characterized in that:
three second grade driven gear is coaxial with three tertiary driving gear respectively, and every second grade driven gear sets up on a second grade jackshaft with a tertiary driving gear, and the second grade jackshaft is parallel with the one-level jackshaft, and three second grade jackshaft circumference equipartition is arranged, and the second grade jackshaft is arranged with the one-level jackshaft alternately.
6. The mining truck-used double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle according to claim 5, characterized in that:
the three-level driven gear is one, the three-level driving gears are all meshed with the three-level driven gear, the three-level driving gears are evenly distributed on a circle with the three-level driven gear as the circle center, and the three-level driving gears are on the same plane.
7. The mining truck-used double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle according to claim 6, characterized in that:
and a double-row bearing is arranged between an output shaft of the three-stage driven gear and a shell of the left three-stage three-intermediate-shaft transmission device.
8. The mining truck-used double-motor three-level three-intermediate-shaft drive wheel-side electric drive axle as claimed in claim 6, characterized in that:
the first-stage intermediate shaft and the second-stage intermediate shaft are both connected with a shell of the left third-stage three-intermediate-shaft transmission device through bearings.
CN202211414770.1A 2022-11-11 2022-11-11 Double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle for mining truck Pending CN115593207A (en)

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CN202211414770.1A CN115593207A (en) 2022-11-11 2022-11-11 Double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle for mining truck

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Application Number Priority Date Filing Date Title
CN202211414770.1A CN115593207A (en) 2022-11-11 2022-11-11 Double-motor three-level three-intermediate-shaft transmission wheel-side electric drive axle for mining truck

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117656702A (en) * 2024-01-31 2024-03-08 载合汽车科技(苏州)有限公司 Electric drive axle for commercial vehicle

Citations (6)

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DE102011115785A1 (en) * 2011-10-06 2013-04-11 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Electrical wheel arrangement for passenger car, has gear units comprising identical total gearing and gear stages with individual gearings, where gear stages of one of gear units are different from gears of other gear unit
CN110203059A (en) * 2019-06-05 2019-09-06 同济大学 A kind of electric car bi-motor distribution drive system
CN110203060A (en) * 2019-06-05 2019-09-06 同济大学 A kind of electric car bi-motor Direct wheel drives system
US20190283574A1 (en) * 2016-09-28 2019-09-19 Audi Ag Drive device for a vehicle axle, in particular a rear axle
CN112519491A (en) * 2019-09-17 2021-03-19 东风德纳车桥有限公司 Double-motor single-speed two-stage deceleration strip wheel-side deceleration independent suspension parallel-shaft electric drive bridge
CN113954629A (en) * 2021-12-02 2022-01-21 蔚来汽车科技(安徽)有限公司 Electric drive assembly for electric vehicle and electric vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011115785A1 (en) * 2011-10-06 2013-04-11 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Electrical wheel arrangement for passenger car, has gear units comprising identical total gearing and gear stages with individual gearings, where gear stages of one of gear units are different from gears of other gear unit
US20190283574A1 (en) * 2016-09-28 2019-09-19 Audi Ag Drive device for a vehicle axle, in particular a rear axle
CN110203059A (en) * 2019-06-05 2019-09-06 同济大学 A kind of electric car bi-motor distribution drive system
CN110203060A (en) * 2019-06-05 2019-09-06 同济大学 A kind of electric car bi-motor Direct wheel drives system
CN112519491A (en) * 2019-09-17 2021-03-19 东风德纳车桥有限公司 Double-motor single-speed two-stage deceleration strip wheel-side deceleration independent suspension parallel-shaft electric drive bridge
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117656702A (en) * 2024-01-31 2024-03-08 载合汽车科技(苏州)有限公司 Electric drive axle for commercial vehicle
CN117656702B (en) * 2024-01-31 2024-04-19 载合汽车科技(苏州)有限公司 Electric drive axle for commercial vehicle

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