CN111806155A

CN111806155A - Electric axle assembly

Info

Publication number: CN111806155A
Application number: CN202010642630.4A
Authority: CN
Inventors: 汪轩锚; 吴壮
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2020-10-23

Abstract

The invention relates to the field of electric axles, in particular to an electric axle assembly, which comprises an axle body, wherein a protective shell is arranged outside the axle body, mounting discs are detachably connected to two sides of the axle body through a plurality of mounting bolts, a fixed shell is fixedly connected to each mounting disc, a motor of the axle body is mounted on the protective shell through a support mechanism, a limit mechanism is arranged on the axle body, a plurality of clamping sleeves are arranged on an extrusion ring of the limit mechanism, and the clamping sleeves of the bolts are clamped outside the mounting bolts to fix the state of the mounting bolts so as to prevent the mounting bolts from loosening when an electric automobile runs on an uneven road surface for a long time, the support mechanism is arranged outside the motor on the axle body to support the motor, the motor jacket of the support mechanism can clamp the motor, and the support plate can support the motor jacket so as to support the motor, the purpose of protecting the output end of the motor and the shell connecting part of the axle body is achieved.

Description

Electric axle assembly

Technical Field

The invention relates to the field of electric axles, in particular to an electric axle assembly.

Background

The electric axle is one of parts on an electric automobile and is mainly used for bearing the load of the automobile.

The casing that automobile axle both ends on present electric automobile mostly all link together through spare parts such as bolt installation automobile wheel hub and brake drum, and during the motor installation on the electric automobile axle, only fix the output of motor on the axle housing of electric automobile axle, when the car is gone on unevenness's road surface for a long time, not hard up phenomenon appears easily in the bolt, there is certain potential safety hazard, the part that the axle housing of motor output and electric automobile axle is connected is easy to be damaged simultaneously, because the electric automobile axle is installed on electric automobile's chassis, be close to ground, if the car is gone in humid environment for a long time, the axle housing of electric automobile axle is corroded easily, cause the damage of electric automobile axle.

Disclosure of Invention

In view of the present problems, the present invention provides an electric axle assembly.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an electric axle assembly, includes the axle body, the externally mounted of axle body has the protective housing, the both sides of axle body all can be dismantled through a plurality of construction bolts and be connected with the mounting disc, equal fixedly connected with set casing on the mounting disc, the third recess has all been seted up at one side middle part that the set casing is close to the axle body, the equal fixed connection of mounting disc is on the third recess inside wall of seting up on the homonymy set casing, stop gear is all installed to the inside of third recess, a plurality of screws have all been seted up to the front and back side of axle body, the motor of axle body passes through supporting mechanism and installs on the protective housing.

The protective housing comprises two assembly shells, wherein one layer of antioxidant is coated on the outer side wall of each assembly shell, the two assembly shells are respectively connected with the front side and the rear side of the axle body in a clamping manner, the two ends of the assembly shells are opposite to each other and are abutted against each other, a plurality of fastening bolts are inserted into the outer side wall of each assembly shell, the fastening bolts are arranged on the assembly shells, the screw holes are formed in one side of each assembly shell, the screw holes are formed in the one side of each assembly shell, the fastening bolts penetrate through the side wall of the assembly shell, the screw holes are connected with each other through threads, and the pull grooves are formed in the outer side wall of each assembly shell.

Specifically, the supporting mechanism comprises two supporting plates, the upper ends of the two supporting plates, which are relatively close to each other, are respectively provided with a second groove, the upper ends of the two supporting plates, which are relatively far away from each other, are respectively inserted with a threaded supporting rod, the threaded support rods penetrate through the support plate and are connected to the support plate in a threaded manner, the threaded support rods are rotatably connected to the ends, close to the motor, of the support plate in a fixed manner and are respectively provided with a fixed block, one side of the fixing block, which is far away from the motor, is connected in a sliding way in a second groove arranged on the supporting plate at the same side, one side of the fixing block close to the supporting plate at the same side is provided with a first groove, the threaded supporting rods are rotatably connected to the inner side wall of the first groove arranged on the fixing block, the motor jacket is fixedly connected to one side, close to the motor, of the fixing block, and the rotating hand wheel is fixedly connected to the end, far away from the motor, of the threaded supporting rod.

Specifically, the motor jacket includes fixed cover, the equal joint of fixed cover is on the motor, equal fixedly connected with rubber sleeve on the inside wall of fixed cover, the inside wall of rubber sleeve all contacts with the lateral wall of motor, the equal fixedly connected with extension board of the last lower extreme of fixed cover, homonymy two one side that the extension board is close to relatively all offsets and all can dismantle the connection through locking bolt.

Specifically, equal first compression spring of fixedly connected with on the inside wall of second recess, first compression spring is all parallel with the inside lower extreme of place second recess, first compression spring all overlaps and is established on homonymy screw thread branch, one side that first compression spring is close to the motor all keeps away from one side fixed connection of motor with the homonymy fixed block, first compression spring's diameter all is greater than the first recess diameter of seting up on the homonymy fixed block.

The size of the supporting plates is the same and the supporting plates are located on the same horizontal line, the supporting plates are located on the front side and the rear side of the motor respectively, and the lower ends of the supporting plates are fixedly connected to the assembly shell on the same side.

Specifically, stop gear is including solid fixed ring and extrusion ring, gu fixed ring and extrusion ring all overlap establish on the axle body and equal sliding connection on the axle body, the homonymy gu all through second compression spring fixed connection between fixed ring and the extrusion ring, gu fixed ring keeps away from one side of homonymy extrusion ring and all supports on the inside wall of homonymy third recess, gu fixed ring's inside diameter all is greater than the diameter of homonymy mounting disc.

Specifically, the extrusion ring is kept away from one side of the solid fixed ring of homonymy and is all supported on two equipment casings, the extrusion ring is close to the equal fixedly connected with bolt cutting ferrule in one side of the solid fixed ring of homonymy, homonymy the same and the one-to-one of quantity of bolt cutting ferrule and construction bolt, the equal joint of bolt cutting ferrule is on the construction bolt that corresponds.

The invention has the beneficial effects that:

(1) according to the electric axle assembly, the limiting mechanism is arranged on the axle body, the plurality of clamping sleeves are arranged on the extrusion ring of the limiting mechanism, and the bolt clamping sleeves are clamped outside the mounting bolts, so that the state of the mounting bolts can be fixed, and the phenomenon that the mounting bolts are loosened when an electric automobile runs on an uneven road surface for a long time is prevented.

(2) According to the electric axle assembly, the support mechanism is arranged outside the motor on the axle body and supports the motor, the motor jacket of the support mechanism can clamp the motor, and the support plate can support the motor jacket, so that the motor is supported, and the purpose of protecting the output end of the motor and the shell connecting part of the axle body is achieved.

(3) According to the electric axle assembly, the protective shell consisting of the two assembling shells is arranged outside the axle body, and the antioxidant is coated outside the two assembling shells, so that the shell of the axle body can be protected.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a cut-away view of an electric axle assembly of the present invention;

FIG. 2 is a schematic view of an electric vehicle axle assembly shown in FIG. 1 at area A;

FIG. 3 is a schematic structural view of an electric axle assembly support mechanism of the present invention;

FIG. 4 is a schematic view of an electric vehicle axle assembly shown in FIG. 3 at area B in accordance with the present invention;

FIG. 5 is an external schematic view of an electric axle assembly according to the present invention.

In the figure: 1. an axle body; 2. a protective shell; 21. assembling the shell; 22. fastening a bolt; 23. groove drawing; 3. a support mechanism; 31. a support plate; 32. a threaded strut; 33. rotating a hand wheel; 34. a fixed block; 35. a motor jacket; 3501. fixing a sleeve; 3502. a support plate; 3503. locking the bolt; 3504. a rubber sleeve; 36. a first groove; 37. a second groove; 38. a first compression spring; 4. a stationary case; 5. a limiting mechanism; 51. a fixing ring; 52. a second compression spring; 53. an extrusion ring; 54. a bolt ferrule; 6. a third groove; 7. installing a bolt; 8. mounting a disc; 9. and a screw hole.

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.

As shown in fig. 1 to 5, the electric axle assembly comprises an axle body 1, a protective housing 2 is mounted outside the axle body 1, mounting discs 8 are detachably connected to both sides of the axle body 1 through a plurality of mounting bolts 7, fixing housings 4 are fixedly connected to the mounting discs 8, third grooves 6 are formed in the middle portions of the fixing housings 4, which are close to one side of the axle body 1, the mounting discs 8 are fixedly connected to the inner side walls of the third grooves 6 formed in the fixing housings 4 on the same side, limiting mechanisms 5 are mounted inside the third grooves 6, a plurality of screw holes 9 are formed in the front side and the rear side of the axle body 1, so that the protective housing 2 can be mounted conveniently, and a motor of the axle body 1 is mounted on the protective housing 2 through a support mechanism 3.

Specifically, the protective housing 2 includes two assembly shells 21, a layer of antioxidant is coated on the outer side walls of the two assembly shells 21, the two assembly shells 21 are respectively clamped on the front and rear sides of the axle body 1, the upper and lower ends of the relatively close side of the two assembly shells 21 are respectively abutted, a plurality of fastening bolts 22 are respectively inserted on the outer side walls of the two assembly shells 21, the number of the fastening bolts 22 arranged on a single assembly shell 21 is the same as and one-to-one corresponding to the number of the screw holes 9 arranged on the single side of the axle body 1, the fastening bolts 22 pass through the side wall of the assembly shell 21 and are all screwed in the corresponding screw holes 9, pull grooves 23 are respectively arranged on the outer side walls of the two assembly shells 21, the pull grooves 23 can facilitate the disassembly and assembly of the two assembly shells 21, the two assembly shells 21 can conveniently protect the axle body 1, the two assembly shells 21 are fixed on the axle body 1 through the fastening bolts 22, live axle body 1 through two equipment shell 21 parcel during the installation, protect axle body 1, prevent water corrosion axle body 1.

Specifically, the supporting mechanism 3 includes two supporting plates 31, the upper ends of the two supporting plates 31 close to each other are respectively provided with a second groove 37, the upper ends of the two supporting plates 31 far from each other are respectively inserted with a threaded support rod 32 for facilitating movement of a fixing block 34, the threaded support rods 32 are respectively penetrated through the supporting plates 31 and are respectively connected to the supporting plates 31, one ends of the threaded support rods 32, which are located at the supporting plates 31 close to the motor, are respectively rotatably connected with the fixing blocks 34, one sides of the fixing blocks 34, which are far from the motor, are respectively slidably connected inside the second grooves 37 arranged on the supporting plates 31 at the same side, one sides of the fixing blocks 34, which are close to the support plates 31 at the same side, are respectively provided with a first groove 36, the threaded support rods 32 are respectively rotatably connected to the inner side walls of the first grooves 36 arranged on the fixing blocks, the end, far away from the motor, of the threaded support rod 32 is fixedly connected with a rotary hand wheel 33, the threaded support rod 32 can be rotated through the rotary hand wheel 33 during installation, a motor jacket 35 is clamped on the motor, then the motor is supported through the two support plates 31, and the part, connected with the axle body 1, of the output end of the motor is protected.

Specifically, the motor jacket 35 includes a fixed sleeve 3501, the fixed sleeve 3501 is all clamped on the motor, a rubber sleeve 3504 is fixedly connected to the inner side wall of the fixed sleeve 3501, the inner side wall of the rubber sleeve 3504 is all in contact with the outer side wall of the motor, an extension plate 3502 is fixedly connected to the upper end and the lower end of the fixed sleeve 3501, two opposite sides of the extension plates 3502 on the same side are respectively abutted and detachably connected through a locking bolt 3503, the two fixed sleeves 3501 can be fixed on the motor through the locking bolt 3503 to clamp the motor, and then the motor is supported by matching with the support plate 31.

Specifically, equal first compression spring 38 of fixedly connected with on the inside wall of second recess 37, first compression spring 38 is all parallel with the inside lower extreme of place second recess 37, first compression spring 38 all overlaps and establishes on homonymy screw thread branch 32, one side that first compression spring 38 is close to the motor all keeps away from one side fixed connection of motor with homonymy fixed block 34, first recess 36 diameter of seting up on homonymy fixed block 34 is all greater than the diameter of first compression spring 38, withstands fixed block 34 through first compression spring 38 during the installation, presss from both sides cover 35 with the motor and pushes up on the motor through fixed block 34, can prevent that fixed block 34 from following screw thread branch 32 and rotating simultaneously, reaches the purpose of firm fixed block 34.

Specifically, two the size of backup pad 31 is the same and be located same water flat line, two backup pad 31 is located the front and back side of motor respectively, two equal fixed connection of lower extreme of backup pad 31 is on same side equipment shell 21, presss from both sides cover 35 through backup pad 35 with the motor and fixes on equipment shell 21 to make things convenient for backup pad 31 to support the motor.

Specifically, stop gear 5 is including solid fixed ring 51 and extrusion ring 53, gu fixed ring 51 and extrusion ring 53 all overlap and establish on axle body 1 and equal sliding connection on axle body 1, the homonymy gu all through second compression spring 52 fixed connection between fixed ring 51 and the extrusion ring 53, gu fixed ring 51 keeps away from one side of homonymy extrusion ring 53 and all supports on the inside wall of homonymy third recess 6, gu fixed ring 51's inside diameter all is greater than the diameter of homonymy mounting disc 8, will gu fixed ring 51 and extrusion ring 53 crowd the inside of third recess 6 through equipment shell 21, conveniently clamp the bolt cutting ferrule 54 card that sets up on the extrusion ring 53 on construction bolt 7.

Specifically, the one side that the solid fixed ring 51 of homonymy was kept away from to extrusion ring 53 all supports on two equipment shell 21, the equal fixedly connected with bolt cutting ferrule 54 in one side that extrusion ring 53 is close to the solid fixed ring 51 of homonymy, homonymy bolt cutting ferrule 54 is the same and the one-to-one with the quantity of construction bolt 7, the equal joint of bolt cutting ferrule 54 is on the construction bolt 7 that corresponds, and accessible bolt cutting ferrule 54 can fix the state of construction bolt 7 when the car is gone, prevents that construction bolt 7 from becoming flexible.

During installation, the fixing ring 51 and the pressing ring 53 of the limiting mechanism 5 are pressed into the third groove 6 formed in the fixing shell 4, the pressing ring 53 is rotated at the same time, the bolt clamping sleeves 54 arranged on the pressing ring 53 are aligned with the mounting bolts 7 until the bolt clamping sleeves 54 are clamped on the mounting bolts 7, then the two assembling shells 21 are clamped on the axle body 1, two ends of the two assembling shells 21 are abutted on the same-side pressing ring 53, so that the pressing ring 53 slides on the axle body 1, in the process, the pressing ring 53 continuously presses the second compression spring 52 to enable the second compression spring 52 to be in a compression state, when the two assembling shells 21 are attached together, a plurality of fastening bolts 22 are installed on the two assembling shells 21, then the fastening bolts 22 are rotated by using a tool such as a wrench until the fastening bolts 22 are inserted into screw holes 9 formed in the axle body 1, the two assembling shells 21 are fixed on the axle body 1 by the fastening bolts 22, meanwhile, under the elastic action of the second compression spring 52, the extrusion ring 53 is abutted against the two assembling shells 21, while the two assembling shells 21 are attached, the two motor jackets 35 of the supporting mechanism 3 are aligned with the motor on the axle body 1, then the threaded support rod 32 is rotated by rotating the hand wheel 33, so that the two motor jackets 35 move towards the direction close to the motor until the two motor jackets 35 are clamped on the motor, meanwhile, the support plates 3502 arranged on the two motor jackets 35 are abutted together, then the locking bolt 3503 is inserted on one of the support plates 3502, then the locking bolt 3503 is rotated by using a tool of a wrench type until the locking bolt 3503 penetrates through the other support plate 3502 on the same side, the support plates 2 on the two motor jackets 35 are fixed together by the locking bolt 3503, so that the two motor jackets 35 are fixed on the motor, the motor is supported, and then the automobile is installed, when the automobile travels, the bolt cutting ferrule 54 of the limiting mechanism 5 clamps the mounting bolt 7, so that the mounting bolt 7 can be prevented from loosening, when the automobile travels in a humid environment, water is on the ground and can be splashed on the two assembling shells 21, and therefore the water is prevented from splashing on the axle body 1 to corrode the axle body 1.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An electric axle assembly comprises an axle body (1), and is characterized in that a protective shell (2) is arranged outside the axle body (1), both sides of the axle body (1) are detachably connected with mounting discs (8) through a plurality of mounting bolts (7), the mounting discs (8) are fixedly connected with fixed shells (4), the middle parts of the fixed shells (4) close to one side of the axle body (1) are respectively provided with a third groove (6), the mounting discs (8) are fixedly connected on the inner side wall of a third groove (6) formed on the fixing shell (4) at the same side, limiting mechanisms (5) are arranged in the third grooves (6), a plurality of screw holes (9) are formed in the front side and the rear side of the axle body (1), the motor of the axle body (1) is installed on the protective shell (2) through the supporting mechanism (3).

2. An electric axle assembly as defined in claim 1 wherein: protective housing (2) are including two equipment shell (21), two all scribble the one deck antioxidant on the lateral wall of equipment shell (21), two equipment shell (21) joint is in the front and back side of axle body (1) respectively, two the lower extreme all offsets on the one side that equipment shell (21) is close to relatively, two all insert on the lateral wall of equipment shell (21) and be equipped with a plurality of fastening bolt (22), singly fastening bolt (22) quantity that set up on equipment shell (21) and screw (9) that axle body (1) unilateral was seted up are the same and the one-to-one, fastening bolt (22) all pass the lateral wall of place equipment shell (21) and equal threaded connection inside screw (9) that correspond, two draw groove (23) have all been seted up on the lateral wall of equipment shell (21).

3. An electric axle assembly as defined in claim 1 wherein: the supporting mechanism (3) comprises two supporting plates (31), second grooves (37) are formed in the upper ends of the two supporting plates (31) close to each other, threaded supporting rods (32) are inserted into the upper ends of the two supporting plates (31) far away from each other, the threaded supporting rods (32) penetrate through the supporting plates (31) and are in threaded connection with the supporting plates (31), the ends, close to the motor, of the threaded supporting rods (32) are rotatably connected with fixing blocks (34), one sides, far away from the motor, of the fixing blocks (34) are slidably connected with the inner portions of the second grooves (37) formed in the supporting plates (31) on the same side, first grooves (36) are formed in one sides, close to the supporting plates (31) on the same side, of the fixing blocks (34), the threaded supporting rods (32) are rotatably connected on the inner side walls of the first grooves (36) formed in the fixing blocks (34), and one side of the fixed block (34) close to the motor is fixedly connected with a motor jacket (35), and the end of the threaded support rod (32) far away from the motor is fixedly connected with a rotary hand wheel (33).

4. An electric axle assembly as defined in claim 3 wherein: the motor jacket (35) comprises a fixed sleeve (3501), the fixed sleeve (3501) is clamped on the motor, a rubber sleeve (3504) is fixedly connected to the inner side wall of the fixed sleeve (3501), the inner side wall of the rubber sleeve (3504) is in contact with the outer side wall of the motor, a support plate (3502) is fixedly connected to the upper end and the lower end of the fixed sleeve (3501), and the two support plates (3502) on the same side are abutted to each other and detachably connected to one side, close to each other, of each support plate (3502) through a locking bolt (3503).

5. An electric axle assembly as defined in claim 3 wherein: equal first compression spring (38) of fixedly connected with on the inside wall of second recess (37), first compression spring (38) are all parallel with the inside lower extreme of place second recess (37), first compression spring (38) are all established on homonymy screw thread branch (32), one side that first compression spring (38) are close to the motor all keeps away from one side fixed connection of motor with homonymy fixed block (34), the diameter of first compression spring (38) is all bigger than first recess (36) diameter of seting up on homonymy fixed block (34).

6. An electric axle assembly as defined in claim 3 wherein: two the size of backup pad (31) is the same and be located same water flat line, two backup pad (31) are located the front and back side of motor respectively, two the equal fixed connection of lower extreme of backup pad (31) is on unilateral equipment shell (21).

7. An electric axle assembly as defined in claim 1 wherein: stop gear (5) are including solid fixed ring (51) and extrusion ring (53), gu fixed ring (51) and extrusion ring (53) all overlap establish on axle body (1) and equal sliding connection on axle body (1), the homonymy all through second compression spring (52) fixed connection between solid fixed ring (51) and the extrusion ring (53), gu fixed ring (51) keep away from one side of homonymy extrusion ring (53) and all support on the inside wall of homonymy third recess (6), the inside diameter of solid fixed ring (51) is all bigger than the diameter of homonymy mounting disc (8).

8. An electric axle assembly as defined in claim 7 wherein: one side that solid fixed ring (51) of homonymy was kept away from in extrusion ring (53) all supports on two equipment shell (21), the equal fixedly connected with bolt cutting ferrule (54) of one side that extrusion ring (53) are close to solid fixed ring (51) of homonymy, homonymy the same and the one-to-one of quantity of bolt cutting ferrule (54) and construction bolt (7), the equal joint of bolt cutting ferrule (54) is on construction bolt (7) that correspond.