CN214742691U

CN214742691U - Damping electric vehicle rear wheel train composite middle shaft middle sleeve

Info

Publication number: CN214742691U
Application number: CN202120290984.7U
Authority: CN
Inventors: 王存峰
Original assignee: Taizhou Qinfeng Materials Co ltd
Current assignee: Taizhou Qinfeng Materials Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-16
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to an electric motor car technical field specifically is a wheel train combined type axis well cover behind shock attenuation electric motor car, including the axle sleeve, the armguard has been cup jointed at the both ends of axle sleeve, and the junction of armguard and axle sleeve has cup jointed the brace, the outer end of armguard is pegged graft and is had the crank cover, and the junction of crank cover and armguard has cup jointed the bush, be equipped with built on stilts layer in the axle sleeve to be equipped with the support in the built on stilts layer, the inboard gomphosis of support has outer lining, the inboard laminating of outer lining has the hoop, and settles in the hoop has the ball, the inboard gomphosis of hoop has the inside lining, it has the axis to peg graft in the inside lining, the outward appearance of axle sleeve is personally submitted the formula equidistance of encirclement and has seted up the tooth's socket. Thereby this device adopts the shaft sleeve to make centraxonial connection more stable in the combined type, convenient to detach and maintenance when the later stage is changed the maintenance simultaneously, and the bearing structure of inside increase can effectual solution wearing and tearing problem simultaneously, reduces the transmission loss that frictional force made power and reduces simultaneously.

Description

Damping electric vehicle rear wheel train composite middle shaft middle sleeve

Technical Field

The utility model relates to an electric motor car technical field specifically is a cover in combined type axis of wheel train behind shock attenuation electric motor car.

Background

The electric motor car is as a popular current instrument, because green, convenient to use's advantage, especially becomes people's daily trip instrument in the distance of short distance, along with the popularization of green trip theory, the electric motor car also receives people's favor more and more, consequently, the demand to electric motor car well axle sleeve pipe in the electric motor car component is growing day by day.

And the well axle sleeve pipe of outer component of axle in current electric motor car generally sets up the recess through the waterproof circle position at well axle sleeve pipe, fix in the recess through waterproof rubber circle, this kind of can increase along with time setting up the fixed technical means of rubber circle at waterproof circle for the recess, lead to the rubber circle ageing and lose waterproof performance, and simultaneously, the rubber circle can take place the solidification along with time increasing, be difficult for changing after the rubber circle damages, cause the change complicacy, lead to changing inefficiency, thereby it is comparatively inconvenient, at the in-process that uses, certain influence has been brought. Therefore, the technical personnel in the field provide a composite middle axle sleeve of a rear wheel train of a damping electric vehicle to solve the problems in the background technology.

Disclosure of Invention

An object of the utility model is to provide a cover in wheel train combined type axis behind shock attenuation electric motor car to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a wheel train combined type axis cover in middle of shock attenuation electric motor car back, includes the axle sleeve, the armguard has been cup jointed at the both ends of axle sleeve, and the junction of armguard and axle sleeve has cup jointed the brace cover, the outer end of armguard is pegged graft and is had the crank cover, and the junction of crank cover and armguard has cup jointed the bush, be equipped with the built on stilts layer in the axle sleeve to be equipped with the support in the built on stilts layer, the inboard gomphosis of support has outer lining, the inboard laminating of outer lining has the hoop, and settles in the hoop and have the ball, the inboard gomphosis of hoop has the inside lining, the inside grafting has the axis, the outward surface of axle sleeve is personally submitted the formula equidistance of encircleing and has seted up the tooth's socket.

As a further aspect of the present invention: the tail end of the crank sleeve is sleeved with a gasket, bolts are inserted into the gasket in a surrounding mode at equal intervals, screw holes are formed in the end portion of the lining, and the bolts are fixed on the lining through the screw holes.

As a further aspect of the present invention: the outer surface of the lining is provided with annular grooves in a surrounding type equidistant mode, the diameter of the gasket is two thirds of that of the lining, and the thickness of the gasket is one fourth of that of the lining.

As a further aspect of the present invention: the support is annular component, and uses its centre of a circle department to be the original point on the support and be the surrounding type equidistance and be provided with the stabilizer blade and the stabilizer blade is provided with eight altogether.

As a further aspect of the present invention: the hoop is divided into an inner hoop and an outer hoop, hemispherical grooves are arranged between the inner hoop and the outer hoop at equal intervals, and the balls are placed in the hemispherical grooves of the hoops.

As a further aspect of the present invention: the rear end of the bushing is connected with a threaded pipe, the outer diameter of the threaded pipe is equal to the inner diameter of the protective arm, an inner ring is embedded in the threaded pipe, and the inner diameter of the inner ring is equal to the outer diameter of the middle shaft.

As a further aspect of the present invention: internal threads are etched in the lining, and internal teeth are arranged at the rear end of the internal threads.

Compared with the prior art, the beneficial effects of the utility model are that: the device adopts the composite middle shaft sleeve to ensure that the connection of the middle shaft is more stable, and is convenient to detach and maintain during later replacement and maintenance, the middle shaft sleeve of the middle shaft outer component of the existing bicycle is generally provided with a groove at the position of a waterproof ring of the middle shaft sleeve and is fixed in the groove through the waterproof rubber ring, the technical means of arranging the groove on the waterproof ring and fixing the waterproof ring by the rubber ring can be increased along with time to cause the rubber ring to age and lose waterproof performance, meanwhile, the rubber ring can be solidified along with the increase of time, the rubber ring is not easy to replace after being damaged, the replacement is complex, the replacement efficiency is low, the composite structure of the device is additionally provided with a gasket, a supporting sleeve and a protective arm, the water seepage problem can be effectively solved, most of driving wheels of the battery cars are rear wheels, the rear wheels need better connection and force transmission, and meanwhile, the problem of abrasion can be effectively solved by the internally added bearing structure, meanwhile, the transmission loss of force is reduced by reducing friction force, and the support inside the middle shaft sleeve can play a good supporting role, so that the overall performance of the middle shaft sleeve can be prevented from being influenced when the rear tire bumps.

Drawings

FIG. 1 is a schematic structural view of a composite center shaft middle sleeve of a rear wheel train of a damping electric vehicle;

FIG. 2 is a schematic cross-sectional structure view of a shaft sleeve in a composite center shaft of a rear wheel train of a damping electric vehicle;

FIG. 3 is a schematic structural diagram of a bushing in a composite center shaft middle sleeve of a rear wheel train of a damping electric vehicle.

In the figure: 1. a crank sleeve; 2. a gasket; 3. a bolt; 4. a bushing; 5. protecting the arm; 6. a shaft sleeve; 7. supporting sleeves; 8. a ring groove; 9. a support; 10. a liner; 11. a tooth socket; 12. an outer liner; 13. a hoop; 14. a ball bearing; 15. a threaded pipe; 16. an inner ring; 17. a screw hole; 18. an internal thread; 19. internal teeth.

Detailed Description

Please refer to fig. 1-3, in an embodiment of the present invention, a damping electric vehicle rear wheel train composite center shaft middle sleeve, includes a shaft sleeve 6, a protection arm 5 is sleeved at both ends of the shaft sleeve 6, a supporting sleeve 7 is sleeved at a joint of the protection arm 5 and the shaft sleeve 6, a crank sleeve 1 is inserted into an outer end of the protection arm 5, a bushing 4 is sleeved at a joint of the crank sleeve 1 and the protection arm 5, an empty layer is arranged in the shaft sleeve 6, a bracket 9 is arranged in the empty layer, an outer liner 12 is embedded in the inner side of the bracket 9, a hoop 13 is attached to the inner side of the outer liner 12, a ball 14 is arranged in the hoop 13, an inner liner 10 is embedded in the inner liner 10, a center shaft is inserted in the inner liner 10, and a tooth space 11 is opened in a surrounding type equidistant manner on an outer surface of the shaft sleeve 6.

In fig. 1, gasket 2 has been cup jointed to the end of crank sleeve 1, and it has bolt 3 to be the plug-in of surrounding type equidistance on gasket 2, screw 17 has been seted up to the tip of bush 4, and bolt 3 passes through screw 17 to be fixed on bush 4, and gasket 2 is put between two planes in order to strengthen sealed material, for preventing the fluid leakage setting sealing element between the static seal face, place water and silt in this device and get into the axis, connect screw 17 through bolt 3 and fix gasket 2.

In fig. 1, the outer surface of the bushing 4 is a surrounding type and is provided with annular grooves 8 at equal intervals, the diameter of the gasket 2 is two thirds of the diameter of the bushing 4, the thickness of the gasket 2 is one fourth of the thickness of the bushing 4, and the annular grooves 8 are used for increasing the supporting point during installation and are convenient to disassemble and install.

In fig. 2, the support 9 is an annular member, and the support 9 is provided with eight support legs at equal intervals in a surrounding manner by taking the circle center as an original point, and the support legs are provided with eight support legs in total, so that the support 9 inside the device can play a good supporting role, and the overall performance of the middle shaft sleeve can be prevented from being influenced when the rear tire bumps.

In fig. 2, the hoop 13 is divided into an inner hoop and an outer hoop, and the inner hoop and the outer hoop 13 are provided with hemispherical grooves at equal intervals, and the balls 14 are placed in the hemispherical grooves of the hoop 13, so that the structure can prevent the balls 14 from being separated from the original initial position due to friction when the device works, play a role in limiting, and simultaneously can ensure that the distances between the balls 14 are the same.

In fig. 3, the rear end of the bushing 4 is connected with a threaded pipe 15, the outer diameter of the threaded pipe 15 is equal to the inner diameter of the guard arm 5, an inner ring 16 is embedded in the threaded pipe 15, the inner diameter of the inner ring 16 is equal to the outer diameter of the middle shaft, the design is that the bushing 4 is connected, the middle shaft and the middle shaft sleeve are arranged on a battery car frame during installation, and the two ends are fixedly restrained through the bushing 4, so that the bushing 4 forms a whole.

In fig. 3, the inside of the bush 4 is etched with an internal thread 18, and the rear end of the internal thread 18 is provided with an internal tooth 19, the present device being a joint design of the crank sleeve 1.

The utility model discloses a theory of operation is: when in use, the middle shaft sleeve 6 is placed at the installation position of the battery car, then the bushings 4 are fixed at the two ends of the shaft sleeve 6, the threaded pipe 15 is rotatably connected on the protective arms 5 at the two ends of the shaft sleeve 6, then the crank sleeve 1 is connected on the shaft sleeve 6 through the internal thread 18, then the gasket 2 is sleeved on the crank sleeve 1, the gasket 2 is placed between the two planes to strengthen the sealing material, in order to prevent fluid leakage, the sealing element arranged between static sealing surfaces is used for placing water and silt into the middle shaft in the device, the gasket 2 is fixed by connecting the bolt 3 with the screw hole 17, the bracket 9 in the shaft sleeve 6 can play a good supporting role, the integral performance of the middle shaft sleeve can be prevented from being influenced when a rear tire bumps, the hoop 13 is divided into an inner hoop and an outer hoop, the semi-sphere groove is arranged between the inner hoop and the outer hoop 13 at equal distance, the ball 14 is placed in the semi-sphere groove of the hoop 13, and the structure can prevent the ball 14 from being separated from the original initial position due to friction when the device works, play limiting displacement, also can guarantee simultaneously that the interval is the same between the ball 14, and the outward appearance of bush 4 is the surrounding type equidistance and has seted up annular 8, annular 8 is for increase thrust point when the installation, can convenient to detach and installation, the compound structure of this device increases gasket and brace and armguard, can the effectual problem of solution infiltration, the drive wheel of most storage battery cars all is the rear wheel, consequently, the rear wheel needs better connection and power transmission, the bearing structure of inside increase can effectual solution wearing and tearing problem simultaneously, it makes the transmission loss of power reduce to reduce frictional force simultaneously.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a cover in gear train combined type axis behind shock attenuation electric motor car, includes axle sleeve (6), its characterized in that: the both ends of axle sleeve (6) have cup jointed armguard (5), and the junction of armguard (5) and axle sleeve (6) has cup jointed brace cover (7), the outer end of armguard (5) is pegged graft and is had crank sleeve (1), and the junction of crank sleeve (1) and armguard (5) has cup jointed bush (4), be equipped with built-up layer in axle sleeve (6) to be equipped with support (9) in the built-up layer, the inboard gomphosis of support (9) has outer lining (12), the inboard laminating of outer lining (12) has hoop (13), and has settled ball (14) in hoop (13), the inboard gomphosis of hoop has inside lining (10), it has the axis to peg graft in inside lining (10), the outward appearance of axle sleeve (6) is the formula equidistance of surrounding and has seted up tooth's socket (11).

2. The damping composite middle axle sleeve for the rear wheel train of the electric vehicle as claimed in claim 1, wherein the end of the crank sleeve (1) is sleeved with a gasket (2), the gasket (2) is inserted with bolts (3) in a surrounding manner at equal intervals, the end of the bushing (4) is provided with a screw hole (17), and the bolts (3) are fixed on the bushing (4) through the screw hole (17).

3. The damping composite middle axle sleeve for the rear wheel train of the electric vehicle as claimed in claim 1, wherein the outer surface of the bushing (4) is formed with surrounding equidistant annular grooves (8), the diameter of the gasket (2) is two thirds of the diameter of the bushing (4), and the thickness of the gasket (2) is one quarter of the thickness of the bushing (4).

4. The damping composite middle axle sleeve for the rear wheel train of the electric vehicle as claimed in claim 1, wherein the bracket (9) is an annular member, and the bracket (9) is provided with eight support legs at equal intervals in a surrounding manner with the center of circle as an origin, and the total number of the support legs is eight.

5. The shock-absorbing composite middle axle sleeve for the rear wheel train of the electric vehicle as claimed in claim 1, wherein the hoop (13) is divided into an inner hoop and an outer hoop, and a hemispherical groove is formed between the inner hoop and the outer hoop (13) at an equal distance, and the balls (14) are placed in the hemispherical groove of the hoop (13).

6. The shock-absorbing composite middle axle sleeve for the rear gear train of the electric vehicle as claimed in claim 1, wherein the rear end of the bushing (4) is connected with a threaded pipe (15), the outer diameter of the threaded pipe (15) is equal to the inner diameter of the guard arm (5), an inner ring (16) is embedded in the threaded pipe (15), and the inner diameter of the inner ring (16) is equal to the outer diameter of the middle axle.

7. The damping composite middle axle sleeve for the rear gear train of the electric vehicle as claimed in claim 1, wherein the inner part of the bushing (4) is etched with an internal thread (18), and the rear end of the internal thread (18) is provided with an internal tooth (19).