CN117254624B - Motor integrated shell and motor - Google Patents
Motor integrated shell and motor Download PDFInfo
- Publication number
- CN117254624B CN117254624B CN202311513586.7A CN202311513586A CN117254624B CN 117254624 B CN117254624 B CN 117254624B CN 202311513586 A CN202311513586 A CN 202311513586A CN 117254624 B CN117254624 B CN 117254624B
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- motor
- shell
- oil
- housing
- differential
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- 210000001503 joint Anatomy 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 68
- 238000009434 installation Methods 0.000 claims description 60
- 238000005461 lubrication Methods 0.000 claims description 57
- 238000001816 cooling Methods 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 24
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 118
- 230000005540 biological transmission Effects 0.000 description 5
- 239000002923 metal particle Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- -1 and at the same time Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- 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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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
- H02K7/08—Structural association with bearings
-
- 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
-
- 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
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention discloses a motor integrated shell, which comprises a first main shell and a second main shell which are arranged left and right, wherein the first main shell comprises a first motor shell and a first differential shell, the second main shell comprises a second motor shell and a second differential shell, the first differential shell is in butt joint with the second differential shell and is positioned between the first motor shell and the second motor shell, the first differential shell and the second differential shell are mutually perpendicular relative to the first motor shell and the second motor shell, and the motor integrated shell is of a T-shaped structure as a whole. The invention also discloses a motor. The invention arranges the two motor shells symmetrically left and right, and the differential shell is arranged between the two motor shells along the longitudinal direction, so that the arrangement mode ensures that the whole structure is compact, the volume is small and the weight is light.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor integrated shell and a motor.
Background
In modern drive systems, the motor and the reduction gear are often integrated together to form a single unit. The design makes the process of power from the motor to the speed reducer and then to the wheels or other devices more direct, and reduces the power loss in the transmission process.
However, the housings of existing motors and reducers are typically arranged in a stacked manner. The integrated housing arranged in this way is bulky, heavy and inconvenient to handle and install.
In addition, the shift mechanism is typically located a distance from the motor and the speed reducer to facilitate manual or automatic shift operations. However, such an arrangement may also increase the complexity of the overall design and may increase the reaction time of the shift operation.
Therefore, there is a need to design a motor integrated housing and a motor that are compact, small in size, light in weight, and shorten the operating time of a shift mechanism.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a motor integrated shell and a motor which are compact in structure, small in size and light in weight and shorten the operation time of a gear shifting mechanism.
The technical scheme of the invention provides a motor integrated shell, which comprises a first main shell and a second main shell which are arranged left and right, wherein the first main shell comprises a first motor shell and a first differential shell, the second main shell comprises a second motor shell and a second differential shell, the first differential shell is in butt joint with the second differential shell and is positioned between the first motor shell and the second motor shell, the first differential shell and the second differential shell are mutually perpendicular relative to the first motor shell and the second motor shell, and the motor integrated shell is of a T-shaped structure as a whole.
Further, the first differential shell and the second differential shell are both provided with a wire harness installation plane, a wire harness installation port is formed in the wire harness installation plane, a half-sinking bolt installation position is arranged between the two wire harness installation ports, and the bolt installation position is used for connecting the first differential shell and the second differential shell through bolts.
Further, the first motor shell comprises a first outer barrel, a first end cover and a first cooling inner barrel, the first cooling inner barrel is positioned in the first outer barrel, the first end cover is connected with a port of the first outer barrel, and the first outer barrel and the first differential shell are integrally formed;
the second motor shell comprises a second outer barrel, a second end cover and a second cooling inner barrel, the second cooling inner barrel is positioned in the second outer barrel, the second end cover is connected with a port of the second outer barrel, and the second outer barrel and the second differential shell are formed in a two-body mode.
Further, a gear shifting mechanism mounting opening is formed in the first differential shell, an input shaft gear mounting area is formed in the first differential shell, the gear shifting mechanism mounting opening is led into the input shaft gear mounting area, and the mounting area of the gear shifting mechanism mounting opening is inwards recessed relative to the outer edge of the first motor shell.
Further, the interior of the first differential housing further includes a speed reducer gear mounting area that is convex toward a direction away from the shift mechanism mounting opening with respect to the first motor housing.
Further, the interior of the first differential housing further includes a countershaft gear mounting area located intermediate and below the input shaft gear mounting area and the reducer gear mounting area.
Further, an oil storage channel is arranged at the lower part of the intermediate shaft gear installation area, the oil storage channel extends upwards to the lower part of the input shaft gear installation area, an input shaft oil guide channel is arranged at the lower part of the input shaft gear installation area, the input shaft oil guide channel is in butt joint with the oil storage channel, a speed reducer oil guide channel is arranged in the speed reducer gear installation area, and the speed reducer oil guide channel extends from the bottom to the top of the speed reducer gear installation area;
a first bearing lubrication way is arranged between the oil storage passage and the input shaft oil guide passage in the intermediate shaft gear installation area, and the first bearing lubrication way guides the oil in the oil storage passage to a bearing of an intermediate shaft gear;
the upper part of the input shaft gear installation area is provided with a first oil baffle dam, a second bearing lubrication oil duct is arranged below the first oil baffle dam, and the second bearing lubrication oil duct guides oil in the input shaft oil duct to a bearing of the input shaft gear;
the upper part of the speed reducer gear installation area is provided with a second oil baffle dam and a third bearing lubrication oil duct, and the third bearing lubrication oil duct guides oil in the speed reducer oil guide duct to a bearing of the speed reducer gear.
Further, an input shaft gear installation area, a middle shaft gear installation area and a speed reducer gear installation area are arranged in the second differential shell, a third oil baffle dam and a fourth bearing lubrication way are arranged in the input shaft gear installation area, the third oil baffle dam is in butt joint with the first oil baffle dam, and the fourth bearing lubrication way is in butt joint with the second bearing lubrication oil duct;
a fifth bearing lubrication slide way is arranged in the intermediate shaft gear installation area and is in butt joint with the first bearing lubrication way;
the gear installation area of the speed reducer is provided with a sixth bearing lubrication slide, and the sixth bearing lubrication slide is in butt joint with the third bearing lubrication oil duct.
Further, an oil return port is further formed in the bottom of the inner side of the first differential shell, an adsorption magnetic body is arranged in the oil return port, and the adsorption magnetic body is shaped like a Chinese character 'tian'.
Further, a labyrinth cavity is arranged at the air-permeable valve at the top of the second differential shell, and a fourth oil baffle dam is further arranged on one side of the labyrinth cavity.
The invention also provides a motor, which comprises a first motor, a second motor and a speed reducer assembly, wherein the motor integrated shell comprises any one of the above, the first motor is installed in the first motor shell, the second motor is installed in the second motor shell, and the speed reducer assembly is installed between the first difference shell and the second difference shell.
Further, the reducer assembly includes an input shaft gearset, a countershaft gearset, and a reducer gearset;
the gear shifting mechanism is connected with the primary gear of the input shaft gear set.
After the technical scheme is adopted, the method has the following beneficial effects:
the invention arranges the two motor shells symmetrically left and right, and the differential shell is arranged between the two motor shells along the longitudinal direction, so that the arrangement mode ensures that the whole structure is compact, the volume is small and the weight is light.
Drawings
The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. In the figure:
FIG. 1 is a front perspective view of an integrated motor housing in accordance with one embodiment of the present invention;
FIG. 2 is a rear perspective view of a motor integrated housing in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of a motor integrated housing in accordance with an embodiment of the present invention;
FIG. 4 is an exploded view of a first main housing in an embodiment of the invention;
FIG. 5 is an exploded view of a second main housing in an embodiment of the invention;
FIG. 6 is a schematic view showing an internal structure of a first differential housing according to an embodiment of the present invention;
FIG. 7 is a schematic view showing an internal structure of a second differential housing according to an embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of a first differential housing in an embodiment of the invention;
fig. 9 is a partial enlarged view of a second differential housing in an embodiment of the invention.
Reference numeral control table:
first main casing 20:
first motor housing 6: a first outer tube 61, a first end cap 62, a first cooling inner tube 63, a support rod 681;
first subtracting case 7: the gear shifting mechanism mounting port 71, the oil storage passage 72, the input shaft oil guide passage 73, the speed reducer oil guide passage 74, the first bearing lubrication passage 75, the first oil dam 76, the second bearing lubrication passage 77, the second oil dam 78, the third bearing lubrication passage 79, the oil return port 701, the adsorbing magnetic body 702, the rib 721, the wire harness mounting plane 791, the wire harness mounting port 792, the bolt mounting position 793, the bolt 794;
the second main casing 30:
second motor housing 8: a second outer tube 81, a second end cap 82, and a second cooling inner tube 83;
second subtracting case 9: the third oil baffle dam 91, the fourth bearing lubrication way 92, the fifth bearing lubrication way 93, the sixth bearing lubrication way 94, the labyrinth cavity 95, the fourth oil baffle dam 96, the air-permeable valve 97 and the oil return slope 951;
an input shaft gear mounting region D, a reduction gear mounting region E, and a countershaft gear mounting region F.
Detailed Description
Specific embodiments of the present invention will be further described below with reference to the accompanying drawings.
It is to be readily understood that, according to the technical solutions of the present invention, those skilled in the art may replace various structural modes and implementation modes with each other without changing the true spirit of the present invention. Accordingly, the following detailed description and drawings are merely illustrative of the invention and are not intended to be exhaustive or to limit the invention to the precise form disclosed.
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms.
In some embodiments of the present invention, as shown in fig. 1-2, the motor integrated housing includes a first main housing 20 and a second main housing 30 arranged left and right, the first main housing 20 includes a first motor housing 6 and a first subtracting housing 7, the second main housing 30 includes a second motor housing 8 and a second subtracting housing 9, the first subtracting housing 7 interfaces with the second subtracting housing 9 and is located between the first motor housing 6 and the second motor housing 8, the first subtracting housing 7 and the second subtracting housing 9 are arranged perpendicular to each other with respect to the first motor housing 6 and the second motor housing 8, and the motor integrated housing is in a T-shaped structure as a whole.
Specifically, as shown in fig. 1, the motor integrated housing includes a first main housing 20 and a second main housing 30, the first main housing 20 and the second main housing 30 being disposed on the left and right sides, respectively.
Wherein, as shown in fig. 2, the first main casing 20 includes a first motor casing 6 and a first differential casing 7, the first motor casing 6 is for mounting the first motor, the first motor casing 6 is substantially cylindrical, and the first differential casing 7 protrudes toward one side of the first motor casing 6 in a direction perpendicular to the first motor casing 6.
The second main casing 30 includes a second motor casing 8 and a second differential casing 9, the second motor casing 8 being for mounting the second motor, the second motor casing 8 being substantially cylindrical, the second differential casing 9 protruding toward one side of the second motor casing 8 in a direction perpendicular to the second motor casing 8.
The first differential shell 7 is butted with the second differential shell 9 left and right, and after the butt joint, components such as a speed reducer and the like are arranged between the first differential shell 7 and the second differential shell 9.
And the first motor housing 6 and the second motor housing 8 are located outside the first subtracting housing 7 and the second subtracting housing 9, respectively, thereby forming a T-shaped structure in fig. 2.
In the embodiment, the two motor shells are symmetrically arranged left and right, and the differential shell is longitudinally arranged between the two motor shells, so that the arrangement mode has the advantages of compact overall structure, small volume and light weight.
Further, as shown in fig. 3, the first differential housing 7 and the second differential housing 9 are respectively provided with a wire harness installation plane 791, the wire harness installation plane 791 is provided with a wire harness installation opening 792, a half-sinking bolt installation position 793 is arranged between the two wire harness installation openings 792, and the bolt installation position 793 is used for connecting the first differential housing 7 and the second differential housing 9 through a bolt 794.
Specifically, the upper parts of the first differential housing 7 and the second differential housing 9 are respectively provided with a wire harness installation plane 791, and a wire harness installation opening 792 is formed in the wire harness installation plane 791. The harness mounting plane 791 is for interfacing with an inverter case mounted above the motor integrated case, and thus the planar structure of the harness mounting plane 791 facilitates installation of the inverter case. The harness mounting port 792 is used for collectively inserting the harness in the inverter case to the motor.
A half-sinking bolt mounting position 793 is arranged between the two harness mounting openings 792, namely at the butt joint of the first differential housing 7 and the second differential housing 9, and the bolt mounting position 793 is connected through the bolt 794, so that the first differential housing 7 is connected with the second differential housing 9. The semi-submersible bolt mounting position 793 can reduce space occupation and avoid affecting the mounting of the inverter housing. And, the installation of the bolt 794 is also facilitated.
In this embodiment, the first differential housing 7 and the second differential housing 9 are connected by a plurality of bolts at one circumference of the abutting surface.
Preferably, as shown in fig. 1, the motor further comprises a support rod 681, and the support rod 681 is connected between the first motor housing 6 and the second motor housing 8 along a transverse direction. The two ends of the support rod 681 are respectively connected with the first motor housing 6 and the second motor housing 8 through bolts, so that the rigidity and strength of the double motor housings are greatly increased, and the modes of the two main housings are improved, thereby improving the NVH performance of the whole machine.
Further, as shown in fig. 4, the first motor housing 6 includes a first outer tube 61, a first end cap 62, and a first cooling inner tube 63, the first cooling inner tube 63 is located inside the first outer tube 61, the first end cap 62 is connected to a port of the first outer tube 61, and the first outer tube 61 is integrally formed with the first differential housing 7;
as shown in fig. 5, the second motor housing 8 includes a second outer tube 81, a second end cap 82, and a second cooling inner tube 83, the second cooling inner tube 83 being located inside the second outer tube 81, the second end cap 82 being connected to a port of the second outer tube 81, the second outer tube 81 being formed in two bodies with the second differential housing 9.
Specifically, as shown in fig. 4, the first outer tube 61 has a cylindrical shape, one end of the first outer tube 61 is opened, the other end is connected to the first differential housing 7, the first end cap 62 has a circular end cap, and the first end cap 62 is connected to the opening of the first outer tube 61. The first cooling inner cylinder 63 is installed inside the first outer cylinder 61, and a cooling flow path is formed between an inner surface of the first outer cylinder 61 and an outer surface of the first cooling inner cylinder 63 for cooling the first motor installed inside the first cooling inner cylinder 63.
As shown in fig. 5, the second outer tube 81 is also cylindrical, one end of the second outer tube 81 is opened, the other end is connected to the second differential housing 9, the second end cover 82 is a circular end cover, and the second end cover 82 is connected to the opening of the second outer tube 81. The second cooling inner cylinder 83 is installed inside the second outer cylinder 81, and a cooling flow path is formed between an inner surface of the second outer cylinder 81 and an outer surface of the second cooling inner cylinder 83 for cooling a second motor installed inside the second cooling inner cylinder 83.
Further, as shown in fig. 4 and 6, a gear shifting mechanism mounting opening 71 is formed in the first differential housing 7, the interior of the first differential housing 7 includes an input shaft gear mounting area D, the gear shifting mechanism mounting opening 71 opens into the input shaft gear mounting area D, and the mounting area of the gear shifting mechanism mounting opening 71 is recessed inward with respect to the outer edge of the first motor housing 6.
The gear shifting mechanism mounting port 71 can arrange the gear shifting actuating mechanism at the position of the primary gear of the input shaft gear, so that the internal transmission structure is more compact, and the primary gear has smaller outer diameter than the intermediate gear and the reducer gear and is compact in arrangement; in addition, the primary gear is arranged, the gear shifting stress is smaller than that of the output end of the speed reducer, the structural design of the gear shifting executing mechanism is simpler and more convenient, and the reliability is better. In addition, the mounting area of the gear shift mechanism mounting port 71 is recessed inward with respect to the outer edge of the first motor housing 6, a large amount of arrangement space can be released, and the overall rigidity is increased, and dust and wading can be prevented well.
Further, as shown in fig. 6, the interior of the first differential housing 7 further includes a speed reducer gear mounting area E that protrudes toward a direction away from the shift mechanism mounting opening 71 with respect to the first motor housing 6. The interior of the first differential housing 7 also includes a countershaft gear mounting area F that is located intermediate and below the input shaft gear mounting area D and the reducer gear mounting area E.
The input shaft gear installation area D is used for installing an input shaft gear set, the intermediate shaft gear installation area F is used for installing an intermediate shaft gear set, and the speed reducer gear installation area E is used for installing a speed reducer gear set. The input shaft gear set is in transmission connection with the intermediate shaft gear set, and the intermediate shaft gear set is in transmission connection with the speed reducer gear set. The input shaft gearset, the intermediate shaft gearset and the reduction gear gearset are each mounted in a cavity between the first differential housing 7 and the second differential housing 9.
Further, as shown in fig. 6, a storage oil duct 72 is provided at the lower part of the intermediate shaft gear installation area F, the storage oil duct 72 extends upward to the lower part of the input shaft gear installation area D, an input shaft oil duct 73 is provided at the lower part of the input shaft gear installation area D, the input shaft oil duct 73 is in butt joint with the storage oil duct 72, a speed reducer oil duct 74 is provided in the speed reducer gear installation area E, and the speed reducer oil duct 74 extends from the bottom to the top of the speed reducer gear installation area E;
a first bearing lubrication way 75 is arranged between the oil storage channel 72 and the input shaft oil guide channel 73 in the intermediate shaft gear mounting area F, and the first bearing lubrication way 75 guides the oil in the oil storage channel 72 to the bearing of the intermediate shaft gear;
the upper part of the input shaft gear installation area D is provided with a first oil baffle dam 76, a second bearing lubricating oil duct 77 is arranged below the first oil baffle dam 76, and the second bearing lubricating oil duct 77 guides oil in the input shaft oil duct 73 to the bearing of the input shaft gear;
the upper portion of the speed reducer gear installation area E is provided with a second oil dam 78 and a third bearing lubrication oil passage 79, and the third bearing lubrication oil passage 79 guides oil in the speed reducer oil guide passage to the bearing of the speed reducer gear.
Specifically, as shown in fig. 6, the arrow direction in fig. 6 is the flow direction of the oil. The lower portion of the intermediate shaft gear mounting region F is provided with an oil reservoir passage 72, and the oil reservoir passage 72 extends from the right side of the intermediate shaft gear mounting region F to a position below the input shaft gear mounting region D, i.e., above the left side of the intermediate shaft gear mounting region F in the clockwise direction. Here, a first bearing lubrication channel 75 is provided, and the first bearing lubrication channel 75 guides the oil in the oil storage channel 72 to the bearing of the intermediate shaft gear, so as to lubricate the intermediate shaft gear set.
The oil storage passage 72 is a substantially circular arc-shaped oil passage, and a plurality of ribs 721 are arranged in the oil passage at intervals, and grooves are formed between adjacent ribs 721, and can play a role in storing oil. When the intermediate shaft gear set is not in operation, oil is stored in the bottom of the oil storage passage 72. When the intermediate shaft gear rotates clockwise, the oil at the bottom of the oil storage channel 72 is driven to reach the first bearing lubrication channel 75 clockwise, and then enters the bearing of the intermediate shaft gear from the first bearing lubrication channel 75. The grooves between the ribs 721 can help to hierarchically enter oil from the bottom portion of the oil reservoir 72 into the first bearing lubrication channel 75.
The lower part of the input shaft gear installation area D, the upper side of the first bearing lubrication way 75 is also provided with an input shaft oil guide channel 73, and the input shaft oil guide channel 73 is in butt joint with the oil storage channel 72. Oil enters the input shaft oil guide passage 73 from the oil reservoir passage 72, and the input shaft oil guide passage 73 extends consistently in the counterclockwise direction from the lower portion of the input shaft gear mounting region D to the upper right of the input shaft gear mounting region D. When the input shaft gear rotates in the counterclockwise direction, oil is brought into the first oil dam 76 along the input shaft oil guide passage 73, the first oil dam 76 serves as a barrier for oil, and at the same time, oil is also introduced into the second bearing lubrication passage 77, and the second bearing lubrication passage 77 introduces oil into the bearing of the input shaft gear.
By the clockwise rotation of the intermediate shaft gear and the counterclockwise rotation of the input shaft gear, the oil is also guided to the left side of the speed reducer gear installation area E in which the speed reducer oil guide passage 74 is provided, the speed reducer oil guide passage 74 extending from the bottom to the right top of the speed reducer gear installation area E. When the speed reducer gear rotates counterclockwise, oil is introduced to the second oil dam 78 along the speed reducer oil guide passage 74, the second oil dam 78 blocks the oil from continuing to the strong flow passage, and oil is introduced to the third bearing lubrication oil passage 79, and the third bearing lubrication oil passage 79 introduces oil in the speed reducer oil guide passage to the bearing of the speed reducer gear.
Through the mode, oil can be guided into the bearings of the intermediate shaft gear, the input shaft gear and the speed reducer gear from the bottom of the differential shell, so that all parts are well lubricated.
Further, as shown in fig. 7, an input shaft gear mounting area D, a countershaft gear mounting area F and a speed reducer gear mounting area E are provided in the second differential housing 9, a third oil dam 91 and a fourth bearing lubrication channel 92 are provided in the input shaft gear mounting area D, the third oil dam 91 is in butt joint with the first oil dam 76, and the fourth bearing lubrication channel 92 is in butt joint with the second bearing lubrication channel 77;
a fifth bearing lubrication slide 93 is arranged in the intermediate shaft gear mounting area F, and the fifth bearing lubrication slide 93 is connected with the first bearing lubrication slide pair 75;
the reducer gear mounting area E is provided with a sixth bearing lubrication channel 94, and the sixth bearing lubrication channel 94 interfaces with the third bearing lubrication oil passage 79.
Further, as shown in fig. 8, an oil return port 701 is further provided at the bottom of the inner side of the first differential housing 7, and an attracting magnetic body 702 is provided in the oil return port 701, and the attracting magnetic body 702 is shaped like a Chinese character 'tian'. The attracting magnetic body 702 is inserted into the oil return port 701 from the side. When the oil flows back to the oil return port 701, the magnetic adsorption body 702 can adsorb metal particles in the oil, so that the metal particles are prevented from damaging parts such as internal gears and bearings. The adsorption magnetic body 702 is in a shape of a Chinese character 'tian', and can increase the contact area with oil and adsorb more metal particles.
Further, as shown in fig. 9, a labyrinth cavity 95 is provided at the air-permeable valve 97 at the top of the second differential housing 9, and a fourth oil dam 96 is further provided at one side of the labyrinth cavity 95.
The fourth oil baffle dam 96 is located at one side of the labyrinth cavity 95, and can prevent oil from entering the labyrinth cavity 95. The labyrinth chamber 95 includes three chambers and an oil return slope 951, ensures air pressure balance, and prevents oil and gas from being ejected.
In some embodiments of the invention, the motor comprises a first motor (not shown), a second motor (not shown), and a speed reducer assembly (not shown), including the motor integrated housing of any of the embodiments described above, the first motor being mounted in the first motor housing 6, the second motor being mounted in the second motor housing 8, the speed reducer assembly being mounted between the first differential housing 7 and the second differential housing 9.
The first motor housing 6 and the second motor housing 8 are arranged right and left, and the two motors are symmetrically arranged right and left. Meanwhile, the speed reducer assembly is disposed between the two motors, and is disposed in a direction perpendicular to the central axis of the motors. The arrangement mode ensures that the motor has compact overall structure, small occupied space, light weight and low cost.
Further, the speed reducer assembly includes an input shaft gearset, a countershaft gearset, and a speed reducer gearset; the gear shifting mechanism is connected with a primary gear of the input shaft gear set.
Because the gear shifting mechanism is directly connected with the first-stage gear of the input shaft gear set, the reaction time of gear shifting operation is shortened. The internal transmission structure is more compact, the outer diameter of the primary gear is smaller than that of the intermediate gear and the reducer gear, and the arrangement is compact; in addition, the primary gear is arranged, the gear shifting stress is smaller than that of the output end of the speed reducer, the structural design of the gear shifting executing mechanism is simpler and more convenient, and the reliability is better.
What has been described above is merely illustrative of the principles and preferred embodiments of the present invention. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the invention and should also be considered as the scope of protection of the present invention.
Claims (9)
1. The motor integrated shell is characterized by comprising a first main shell and a second main shell which are arranged left and right, wherein the first main shell comprises a first motor shell and a first differential shell, the second main shell comprises a second motor shell and a second differential shell, the first differential shell is in butt joint with the second differential shell and is positioned between the first motor shell and the second motor shell, the first differential shell and the second differential shell are mutually perpendicular relative to the first motor shell and the second motor shell, and the motor integrated shell is of a T-shaped structure as a whole;
the inside of the first differential shell comprises an input shaft gear installation area, a speed reducer gear installation area and a countershaft gear installation area, and the countershaft gear installation area is positioned at the middle lower part of the input shaft gear installation area and the speed reducer gear installation area;
the lower part of the intermediate shaft gear installation area is provided with an oil storage channel, the oil storage channel extends upwards to the lower part of the input shaft gear installation area, the lower part of the input shaft gear installation area is provided with an input shaft oil guide channel, the input shaft oil guide channel is in butt joint with the oil storage channel, the speed reducer gear installation area is provided with a speed reducer oil guide channel, and the speed reducer oil guide channel extends from the bottom to the top of the speed reducer gear installation area;
a first bearing lubrication way is arranged between the oil storage passage and the input shaft oil guide passage in the intermediate shaft gear installation area, and the first bearing lubrication way guides the oil in the oil storage passage to a bearing of an intermediate shaft gear;
the upper part of the input shaft gear installation area is provided with a first oil baffle dam, a second bearing lubrication oil duct is arranged below the first oil baffle dam, and the second bearing lubrication oil duct guides oil in the input shaft oil duct to a bearing of the input shaft gear;
the upper part of the speed reducer gear installation area is provided with a second oil baffle dam and a third bearing lubrication oil duct, and the third bearing lubrication oil duct guides oil in the speed reducer oil duct to a bearing of a speed reducer gear;
the inner bottom of the first differential shell is also provided with an oil return port, an adsorption magnetic body is arranged in the oil return port, and the adsorption magnetic body is shaped like a Chinese character 'tian'.
2. The motor integrated housing of claim 1, wherein the first differential housing and the second differential housing are each provided with a wire harness mounting plane, the wire harness mounting plane is provided with a wire harness mounting opening, a half-sinking bolt mounting position is arranged between the two wire harness mounting openings, and the bolt mounting position is used for connecting the first differential housing and the second differential housing through bolts.
3. The motor integrated housing of claim 1, wherein the first motor housing comprises a first outer barrel, a first end cap, and a first cooling inner barrel, the first cooling inner barrel being located inside the first outer barrel, the first end cap being connected to a port of the first outer barrel, the first outer barrel being integrally formed with the first differential housing;
the second motor shell comprises a second outer barrel, a second end cover and a second cooling inner barrel, the second cooling inner barrel is positioned in the second outer barrel, the second end cover is connected with a port of the second outer barrel, and the second outer barrel and the second differential shell are integrally formed.
4. The motor integrated housing of claim 1, wherein the first differential housing is provided with a shift mechanism mounting opening that opens into the input shaft gear mounting area, the mounting area of the shift mechanism mounting opening being recessed inwardly relative to the outer edge of the first motor housing.
5. The motor integrated housing of claim 4, wherein the reducer gear mounting area is raised relative to the first motor housing in a direction away from the shift mechanism mounting opening.
6. The motor integrated housing of claim 1, wherein an input shaft gear mounting area, a countershaft gear mounting area and a speed reducer gear mounting area are provided in the second differential housing, a third oil dam and a fourth bearing lubrication channel are provided in the input shaft gear mounting area, the third oil dam is in butt joint with the first oil dam, and the fourth bearing lubrication channel is in butt joint with the second bearing lubrication channel;
a fifth bearing lubrication slide way is arranged in the intermediate shaft gear installation area and is in butt joint with the first bearing lubrication way;
the gear installation area of the speed reducer is provided with a sixth bearing lubrication slide, and the sixth bearing lubrication slide is in butt joint with the third bearing lubrication oil duct.
7. The motor integrated housing of claim 1, wherein a labyrinth cavity is provided at a breather valve at the top of the second differential housing, and a fourth dam is further provided at one side of the labyrinth cavity.
8. A motor comprising a first motor, a second motor and a speed reducer assembly, characterized by comprising the motor-integrated housing of any one of claims 1-7, the first motor being mounted in the first motor housing, the second motor being mounted in the second motor housing, the speed reducer assembly being mounted between the first differential housing and the second differential housing.
9. The electric machine of claim 8, wherein the reducer assembly comprises an input shaft gearset, a countershaft gearset, and a reducer gearset;
the gear shifting mechanism is connected with the primary gear of the input shaft gear set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311513586.7A CN117254624B (en) | 2023-11-14 | 2023-11-14 | Motor integrated shell and motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311513586.7A CN117254624B (en) | 2023-11-14 | 2023-11-14 | Motor integrated shell and motor |
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| CN117254624A CN117254624A (en) | 2023-12-19 |
| CN117254624B true CN117254624B (en) | 2024-02-27 |
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| CN202311513586.7A Active CN117254624B (en) | 2023-11-14 | 2023-11-14 | Motor integrated shell and motor |
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| WO2019149181A1 (en) * | 2018-01-31 | 2019-08-08 | 华为技术有限公司 | Speed reducer, drive device, and electric vehicle |
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|---|---|
| CN117254624A (en) | 2023-12-19 |
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