CN210137242U - Shaftless end output motor and new energy automobile - Google Patents

Abstract

The utility model discloses in provide a no axle head output motor, new energy automobile, a no axle head output motor includes: the driving mechanism comprises a first driving part and a second driving part which are coaxially arranged, wherein a transmission chamber communicated with the outside is formed between the first driving part and the second driving part; the rotating shaft is connected to the first driving part and the second driving part and rotates under the action of the first driving part and/or the second driving part; the transmission part is arranged on the rotating shaft and is accommodated in the transmission chamber. The utility model discloses in set up first drive division and second drive division on a motor, when guaranteeing to provide enough drive power, will realize and establish the intermediate position at two drive divisions with external driven driving medium clamp, need install the driving medium with traditional motor and compare on stretching out the axle head of motor body, the utility model discloses in need not to set up the output shaft that stretches out outside the motor, reduced the whole volume of motor, the volume reduction of motor can effectively reduce the big problem of car actuating system occupation space.

Description

Shaftless end output motor and new energy automobile

Technical Field

The utility model relates to the technical field of motors, concretely relates to shaftless end output motor, new energy automobile.

Background

The driving mode of the electric automobile is mostly a front-drive or rear-drive mode, the driving motor is generally installed on the chassis of the automobile, the arrangement mode of the driving motor adopts a power output mode of 'staggered transmission', as shown in fig. 1, namely 'motor 1-output shaft 2-universal joint 4-transmission shaft 3-axle 5', and the middle transmission structure is more, so that the driving efficiency is low and the occupied space is large.

Install driving motor on the axle among the prior art, can remove the installation demand to the universal joint part from, but, the motor is fixed on the axle, because of output torque's problem, need install a plurality of driving motor in order to guarantee sufficient output torque, can not effectual solution actuating system occupation space big problem.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art that driving motor's output mode brings the problem that automobile power system structure is complicated, occupation space is big among the current electric automobile to a no axle head output motor, new energy automobile are provided.

In order to solve the above problem, the utility model provides a no axle head output motor includes: the driving device comprises a first driving part and a second driving part which are coaxially arranged, wherein a transmission chamber communicated with the outside is formed between the first driving part and the second driving part; the rotating shaft is connected to the first driving part and the second driving part and is rotated under the action of the first driving part and/or the second driving part; and the transmission part is arranged on the rotating shaft and is accommodated in the transmission chamber.

Further, the first driving part and/or the second driving part sequentially comprise a rotor, a stator and a shell along the radial direction, and the rotating shaft is arranged on the rotor.

Further, an unsealed annular bulge is formed on the end face, close to the second driving part, of the shell, a bearing chamber is formed in the middle of the annular bulge, and the unsealed part of the annular bulge is configured as the transmission chamber.

Furthermore, the upper end face of the annular protrusion is used as a fitting face for the first driving part and the second driving part.

Further, the first driving part and the second driving part are configured as two structural components symmetrically arranged with respect to the attaching surface.

Further, the rotating shaft comprises a first rotating shaft and a second rotating shaft which are respectively arranged on the rotor.

Further, the transmission part is a transmission gear, a mounting hole is formed in the middle of the transmission part, and the first rotating shaft and the second rotating shaft are connected into a whole through the mounting hole.

Further, the first drive portion and the second drive portion are configured as the same drive motor.

Further, the first driving part and the second driving part are configured as different driving motors.

The utility model also provides a new energy automobile includes: the output motor without the shaft end is arranged; and the shaftless end output motor is arranged in the axle.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a no axle head output motor includes: the driving device comprises a first driving part and a second driving part which are coaxially arranged, wherein a transmission chamber communicated with the outside is formed between the first driving part and the second driving part; the rotating shaft is connected to the first driving part and the second driving part and is rotated under the action of the first driving part and/or the second driving part; and the transmission part is arranged on the rotating shaft and is accommodated in the transmission chamber.

The utility model discloses in set up first drive division and second drive division on a motor, when guaranteeing to provide enough drive power, will realize and establish the intermediate position at two drive divisions with external driven driving medium clamp, need install the driving medium with traditional motor and compare on stretching out the axle head of motor body, the utility model discloses in need not to set up the output shaft that stretches out outside the motor, reduced the whole volume of motor, the volume reduction of motor can effectively reduce the big problem of car actuating system occupation space.

On the other hand, compare with the mode that the motor shaft that introduces in the background art is the staggered arrangement with the axletree, the utility model provides a motor can realize arranging side by side with the axletree, has reduced the occuping to automobile body length direction, and can lug connection on the axle, has reduced middle connecting piece, has improved the transmission efficiency of energy.

2. The utility model provides an among the shaftless end output motor the shell is close to it is protruding to be formed with unclosed annular on the terminal surface of second drive division, the bellied intermediate position of annular forms the bearing room, the bellied unclosed part of annular is constructed as the transmission room. Transmission medium among the prior art generally is drive gear, for copper or iron system, for driven steady and reduction transmission resistance, need coat lubricating oil or fat on the transmission medium, but among the prior art the many direct exsertions of transmission medium install on the output shaft of motor, external dust can pollute lubricating oil or fat, consequently needs extra protective structure, has caused motor drive assembly's complicacy, the utility model discloses well direct utilization motor's casing forms the transmission room, and the transmission medium setting can play effectual guard action to the transmission medium in the transmission room.

3. The utility model provides an among the shaftless end output motor first drive division with the second drive division with the bellied up end of annular is binding face, and the mode that first drive division and second drive division laminating set up has avoided first drive division and second drive part to have the problem that the clearance leads to motor axial length to increase.

4. The utility model provides an among the shaftless end output motor first drive division with second drive division is constructed for two with the structural component that laminating face symmetry set up. The design of symmetrical structural parts can effectively simplify the structure of the motor and facilitate the processing of the parts.

5. The utility model provides an among the shaftless end output motor the pivot is including setting up respectively first pivot and second pivot on the rotor, the design of two pivots, when one in first drive division or second drive division damages, is the design because of the part of pivot, can directly separately change both and maintain.

6. The utility model provides an among the shaftless end output motor first drive division with second drive division is constructed for same driving motor. The utility model provides a principle and the structure of first drive division and second drive division are similar traditional motor, in some of them embodiments, set up first drive division and second drive division into the driving motor of the same kind type, can conveniently be right the utility model provides a control of well motor, just two drive divisions, can select the condition of drive division work according to operating condition, if the load is less, steerable first drive division or second drive division work, when the load is great, steerable first drive division and second drive division simultaneous working.

7. The utility model provides an among the shaftless end output motor first drive division with second drive division is constructed different driving motor, and the scope of the load that different driving motor can drive is bigger.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a drawing of the background art provided by the present invention;

fig. 2 is a partial cross-sectional view of a shaftless output motor according to embodiment 1 of the present invention;

fig. 3 is an external view of a shaftless output motor according to embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of a housing according to embodiment 1 of the present invention;

fig. 5 is an assembly schematic view of the rotating shaft and the transmission member in embodiment 1 provided by the present invention;

fig. 6 is a schematic structural view of a rotating shaft according to embodiment 1 of the present invention;

fig. 7 is a schematic structural diagram of a transmission member according to embodiment 1 of the present invention.

Description of the background art reference numerals:

1-a motor;

2-an output shaft;

3, driving a shaft;

4-a universal joint;

5-vehicle bridge;

6-driving wheel.

Description of the examples reference numerals:

1-a first drive section; 11-a rotor; 12-a stator; 13-a housing; 14-an end cap; 131-an annular projection; 1311-upper end face;

2-a second drive section;

3-a transmission chamber;

4-a rotating shaft; 41-a first shaft; 42-a second shaft; 411-keyway; 412-a shoulder; 413-a rotor mating face; 414 — bearing mating surface;

5-a transmission member; 51-mounting holes; 52-gear keyway; 53-tooth; 54-shaft sleeve

6-a bearing chamber;

7-a flat bond;

8-a bearing;

9-elastic cushion.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 2 to 7, the shaftless output motor provided for this embodiment includes: the driving device comprises a first driving part 1 and a second driving part 2 which are coaxially arranged, wherein a transmission chamber 3 communicated with the outside is formed between the first driving part 1 and the second driving part 2; a rotating shaft 4 connected to the first driving part 1 and the second driving part 2 and rotated by the first driving part 1 and/or the second driving part 2; and the transmission piece 5 is arranged on the rotating shaft 4 and is accommodated in the transmission chamber 3.

It should be noted that the motor in this embodiment is used for driving the front wheel or the rear wheel of the new energy vehicle to rotate, and the new energy vehicle is used as the target.

Of course, the shaftless output motor in the embodiment can also be applied to other industries, such as mining equipment and the like

In the present embodiment, the first driving unit 1 and the second driving unit 2 are designed to ensure that a sufficient driving force is provided for the new energy vehicle or one of the driving units is used as a backup motor.

The driving principle of the first driving portion 1 and the second driving portion 2 in this embodiment is the same as the working principle of the conventional motor, and the structure is similar, as shown in fig. 2, it can be approximately regarded as that the two motors are assembled together by improving the structure, and therefore, the detailed structure of the first driving portion 1 and the second driving portion 2 is not described in detail in this application.

This embodiment sets up first drive division 1 and second drive division 2, when guaranteeing to provide enough drive power, will realize and establish the intermediate position at two drive divisions with external driven driving medium clamp, need install the driving medium on stretching out the axle end of motor body with traditional motor and compare, need not to set up the output shaft that stretches out outside the motor in this embodiment, reduced the whole volume of motor, the volume reduction of motor can effectively reduce the big problem of automobile drive system occupation space.

On the other hand, compared with the mode that the motor shaft and the wheel shaft are arranged in a staggered mode introduced in the background art, the motor in the embodiment can be arranged side by side with the wheel shaft, the occupation of the automobile body in the length direction is reduced, the motor can be directly connected to the axle, connecting pieces in the middle are reduced, and the transmission efficiency of energy is improved.

The following provides a detailed explanation of the motor structure in this embodiment:

first, since the first driving unit 1 and the second driving unit 2 in the present embodiment have the same motor structure, only the first driving unit 1 will be described as an example in the following description.

It should be noted that, the first driving portion 1 and the second driving portion 2 in the present embodiment are symmetrical and the same in structure, and the design of symmetrical structural parts can effectively simplify the structure of the motor and also facilitate the processing of the parts.

It should be further explained that the first driving part 1 and the second driving part 2 in the present embodiment are identical in performance parameters, and may be specifically regarded as two motors of the same type, which are convenient to control.

On the other hand, it should be noted that the motors of the same type can be selected to work simultaneously or only one of them according to the size of the load when in use.

The structure of the first driving portion 1 will be briefly described here, so as to describe the following structure:

the first driving portion 1 is cylindrical and includes a rotor 11, a stator 12 and a housing 13 in sequence along a radial direction, and the rotating shaft 4 is fixed on the rotor 11 in an interference fit manner.

The first driving part 1 further comprises an end cover 14 locked at the rear end of the housing 13 by a screw, a groove is processed in the middle of the inner side surface of the end cover 14 at a position corresponding to the shaft end of the rotating shaft 4, the bearing 8 is installed in the groove in an interference fit manner, and one end of the rotating shaft 4 is supported by the bearing 8.

As shown in fig. 4, the end face of the housing 13 close to the second drive part 2 is formed with an unclosed annular projection 131, and the middle of the annular projection 131 forms the bearing chamber 6, as shown in fig. 2, in which bearing chamber 6 the bearing 8 engages, and the bearing 8 in the above-mentioned recess cooperates to support the shaft 4.

As shown in fig. 4, the unclosed part of the annular protrusion 131 in this embodiment is configured as a part of the transmission chamber 3, and as can be seen from fig. 3, the two housings 13 are butted in the axial direction, the two annular protrusions 131 are abutted by the upper end surfaces 1311, and the two notched parts are butted to form the transmission chamber 3 and are communicated with the outside.

As shown in fig. 3, the transmission member 5 in this embodiment is a gear, the transmission member in the prior art is also generally a transmission gear, and is made of copper or iron, in order to smooth transmission and reduce transmission resistance, it is necessary to coat lubricating oil or grease on the transmission member, but in the prior art, the transmission member is often directly exposed and installed on the output shaft end of the motor, and external dust may contaminate the lubricating oil or grease, so that an additional protection structure is required, which complicates the motor transmission assembly, in this embodiment, the casing 13 of the motor is directly utilized to form the transmission chamber 3, and the transmission member 5 is disposed in the transmission chamber, which can effectively protect the transmission member 5.

Further, the first driving part 1 and the second driving part 2 use the upper end surface 1311 of the annular protrusion 131 as a fitting surface, so that the problem that the axial length of the motor is increased due to the existence of a gap between the first driving part 1 and the second driving part 2 is avoided.

Further, an annular elastic pad 9 is installed at the groove bottom of the bearing housing 6 to avoid the end surface of the bearing 8 from being worn.

As shown in fig. 5 and 6, the rotating shaft 4 includes a first rotating shaft 41 and a second rotating shaft 42 respectively mounted on the rotor 11. The design of the two rotating shafts 4 is such that when one of the first driving part 1 or the second driving part 2 is damaged, the two rotating shafts 4 can be directly separated for replacement and maintenance because the separation of the two rotating shafts is a design.

As shown in fig. 5 and 7, a mounting hole 51 is formed in the middle of the transmission member 5, and the first rotating shaft 41 and the second rotating shaft 42 are integrally butted via the mounting hole 51. Explaining by using the first rotating shaft 41, because the second rotating shaft 42 and the first rotating shaft 41 are mirror-image structures, specifically, a key slot 411 is formed in one shaft end of the first rotating shaft 41 close to the transmission member 5, the transmission member 5 is a gear, a shaft sleeve 54 is formed in the center of the transmission member 5 along the edge of the mounting hole 51, a gear key slot 52 is formed on the inner side surface of the shaft sleeve 54 and the key slot 411 in a corresponding manner, a flat key 7 is installed in the key slot 411 and the gear key slot 52 in an interference fit manner, so that the rotating shaft 41 and the transmission member 5 are fixed into a whole, the second rotating shaft 42 is fixedly installed on the first rotating shaft 41, and the opposite surfaces of the transmission member 5. The toothed part 53 of the transmission member 5 is driven by the rotating shaft 4 to mesh with an external device.

In order to prevent the axial play between the transmission element 5 and the rotor 11, a stop shoulder 412 is also formed on the first shaft 41.

Wherein the inner side surface of the rotor 11 is fittingly mounted on the rotor fitting surface 413 of the first rotating shaft 41, and the bearing 8 in the bearing chamber 6 is fittingly mounted on the bearing fitting surface 414 of the first rotating shaft 41.

In some other embodiments, the first drive part 1 and the second drive part 2 are configured as different drive motors, and the range of loads that can be driven by the different drive motors is larger.

Example 2

The embodiment provides a new energy automobile, which is provided with the shaftless output motor in the embodiment 1; and the axle is internally provided with the output motor without the shaft end, the axle is provided with a gearbox, and the tooth part 53 is connected to the power input end of the gearbox.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (10)

1. A shaftless output motor, comprising:

the device comprises a first driving part (1) and a second driving part (2) which are coaxially arranged, wherein a transmission chamber (3) communicated with the outside is formed between the first driving part (1) and the second driving part (2);

a rotating shaft (4) which is connected to the first driving part (1) and the second driving part (2) and is rotated under the action of the first driving part (1) and/or the second driving part (2);

and the transmission piece (5) is arranged on the rotating shaft (4) and is accommodated in the transmission chamber (3).

2. The shaftless end output motor according to claim 1, wherein the first drive portion (1) and/or the second drive portion comprises a rotor (11), a stator (12) and a housing (13) in this order radially outward, the rotary shaft (4) being provided on the rotor (11).

3. The shaftless end output motor according to claim 2, wherein an unsealed annular projection (131) is formed on an end surface of the housing (13) close to the second drive portion (2), a middle position of the annular projection (131) forms a bearing chamber (6), and an unsealed portion of the annular projection (131) is configured as the transmission chamber (3).

4. The shaftless end output motor according to claim 3, wherein the first drive portion (1) and the second drive portion (2) have an abutting surface of an upper end surface (1311) of the annular projection (131).

5. The shaftless end output motor according to claim 4, wherein the first drive portion (1) and the second drive portion (2) are configured as two structural components symmetrically arranged with respect to the contact surface.

6. The shaftless end output motor according to claim 5, wherein said rotating shaft (4) comprises a first rotating shaft (41) and a second rotating shaft (42) provided on said rotor (11), respectively.

7. The shaftless output motor according to claim 6, wherein said transmission member (5) is a transmission gear having a mounting hole (51) formed in the middle thereof, and said first rotating shaft (41) and said second rotating shaft (42) are integrally connected through said mounting hole (51).

8. The shaftless output motor according to any of claims 1 to 7, wherein the first drive part (1) and the second drive part (2) are constructed as the same drive motor.

9. The shaftless output motor according to any of claims 1 to 7, wherein the first drive part (1) and the second drive part (2) are configured as different drive motors.

10. A new energy automobile is characterized by comprising:

the shaftless output motor of any one of claims 1-9;

and the shaftless end output motor is arranged in the axle.

Images