CN211087721U

CN211087721U - Power output device

Info

Publication number: CN211087721U
Application number: CN201921427452.2U
Authority: CN
Inventors: 徐波; 刘鹏涛
Original assignee: Beijing Kuchuang Technology Co ltd
Current assignee: Beijing Kuchuang Technology Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-07-24
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a power output device, which comprises a motor (1) and a power supply device, wherein the power supply device is matched with gears (4) and (5) to complete the power transmission from the motor (1) to a differential (2); a differential (2) for rolling the left and right wheels at different rotational speeds to adjust the rotational speed difference between the left and right wheels when the vehicle is turning; a housing (3) for fixing the electric motor (1) and the differential (2), comprising a first housing (301) and a second housing (302); the motor (1) and the differential (2) are arranged in the shell (3) through a linkage assembly, a first fixing groove (3011) for fixing the motor (1) is formed in the first shell (301), and a second fixing groove (3021) for fixing the differential (2) is formed in the second shell (302); the first shell (301) and the second shell (302) are connected in a buckling manner. The split charging type power output component solves the technical problems of complex installation and low space utilization rate between split charging type power output components.

Description

Power output device

Technical Field

The utility model discloses the application relates to vehicle power take off field particularly, relates to a power take off device.

Background

The split type installation is adopted between the motor and the rear wheel bearing of the current model car, because the motor and the rear wheel bearing need to be respectively fixed and realize the connection combination of the structure, a large number of fixing components (such as screws and nuts) are needed, the installation process is complex, the requirements on the tightness and the position relation of the connection between the components are high, errors easily appear in the installation process, and the components are easy to cause part damage due to the connection errors, thereby causing the damage of the connecting components, such as the motor, the rear wheel bearing and the related connecting pieces thereof, and further influencing the working efficiency and the service life of a power output assembly formed by the combination of the whole different components.

Meanwhile, because the motor and the rear wheel bearing are installed in a split mode, the motor is required to be arranged independently when being fixed in the model car, and the motor is usually arranged in the middle of the front wheel bearing and the rear wheel bearing; the layout method of the components leads the space of the chassis of the model car to be divided, and a plurality of small spaces are formed among the components due to independent arrangement, and the small spaces cannot be utilized, so that the waste of the structural space of the car body is caused, the volume of the car is increased, and the heavy feeling is visually given to people.

SUMMERY OF THE UTILITY MODEL

The utility model provides a main aim at provides a power take-off to solve the technical problem that the installation is complicated between the partial shipment formula power take-off component, space utilization is low.

In order to achieve the above object, there is provided a power output apparatus including:

an electric motor, a power supply device;

the differential mechanism enables the left wheel and the right wheel to roll at different rotating speeds when the vehicle turns and runs, and adjusts the rotating speed difference of the left wheel and the right wheel;

a housing for securing the electric motor and the differential, including a first housing and a second housing;

the motor and the differential are arranged in the shell through a linkage assembly, a first fixing groove for fixing the motor is formed in the first shell, and a second fixing groove for fixing the differential is formed in the second shell; the first shell and the second shell are connected in a buckling mode.

Furthermore, the shell is provided with a limiting hole at least used for fixing one of the motor, the differential and/or the linkage assembly.

Further, the linkage assembly at least comprises:

a transmission member for connecting the motor and the differential to transmit power;

and the output member is connected with the differential mechanism and outputs power which is adjusted through the differential mechanism and jointly cooperated with the gear set.

Furthermore, the transmission member at least comprises a driving connecting piece, a metal gasket, a driving bearing, a driving gear and a driven gear; the driving gear transmits power generated by the motor to the driving connecting piece through the driven gear, and the driving connecting piece is connected with the differential through the metal gasket and the driving bearing.

Further, the driving gear with driven gear sets up the outside of casing, drive connection spare sets up the inboard of casing, the motor passes through spacing hole with the driving gear is connected, drive connection spare through setting up spacing hole on the casing with driven gear is connected.

Further, the output member includes at least a differential gear, an output bearing, and an external connection; one end of the output member is connected with the differential, and the other end of the output member is connected with the outside through the output bearing and the external connecting piece.

Further, differential mechanism includes the big umbrella tooth of differential mechanism, the differential mechanism axle, the little umbrella tooth of differential mechanism, drive shaft umbrella tooth, wherein the big umbrella tooth of differential mechanism and differential mechanism axle design as an organic whole, the little umbrella tooth of differential mechanism with drive shaft umbrella tooth design as an organic whole.

Furthermore, the casing is provided with protection connecting wings, the protection connecting wings are arranged on the left side and the right side of the casing, and the linkage assembly extending out of the casing is protected.

Furthermore, the whole protective connecting wing is arranged in a triangular shape.

Furthermore, the first shell and the second shell of the shell are both provided with connecting protective wings.

The utility model discloses in the application embodiment, adopt the mode that power take off component structure integration set up, through the setting to shell structure, laid out motor, differential mechanism and interlock subassembly position relation again, reached the purpose of motor, differential mechanism integration to realized that the power take off component installation is simple, save time's technological effect, and then solved the technical problem that installation is complicated, space utilization is low between the split type power take off component.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings of the illustrative embodiments of the present invention and their description are for the purpose of illustrating the invention and are not to be construed as unduly limiting the scope of the invention. In the drawings:

fig. 1 is an exploded schematic view of the structure of a power output apparatus according to an embodiment of the present application;

fig. 2 is a schematic structural view of a power output apparatus according to an embodiment of the present application;

fig. 3 is a schematic view of the internal structure of a first casing of a power output apparatus according to an embodiment of the present application;

fig. 4 is an external structural schematic view of a first casing of the power output apparatus according to the embodiment;

fig. 5 is a schematic view of the internal structure of the second casing of the power output apparatus according to the embodiment;

fig. 6 is an external structural schematic view of a second casing of the power output apparatus according to the embodiment;

fig. 7 is an exploded schematic view of the differential of the power output apparatus according to the embodiment.

Reference numerals

1: an electric motor; 2: a differential mechanism; 201: a differential gear big bevel gear; 202: a differential shaft; 203: a small bevel gear of the differential; 204: the bevel gear of the driving shaft; 3: a housing; 301: a first housing; 3011: a first fixing groove; 302: a second housing; 3021: a second fixing groove; 4: a driving gear; 5: a driven gear; 6: a drive connection; 7: a metal gasket; 8: a drive bearing; 9: a differential bearing; 10: an output bearing; 11: a protective connecting wing; 12: an external connection.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the present invention is described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are only embodiments of the present invention, not all embodiments. Based on the embodiments in the application of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present application described herein may be made. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present application can be understood by those of ordinary skill in the art as a matter of context.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as a matter of case.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the present invention relates to a power output apparatus, which includes a motor 1 for supplying power, a differential 2 for adjusting power output of the motor 1, a linkage assembly for connecting the motor 1 and the differential 2, and a housing 3 disposed outside the motor 1 and the differential 2;

the linkage assembly at least comprises a transmission member for connecting the motor 1 and the differential 2 to transmit power and an output member for connecting the differential and outputting the power regulated by the differential.

As shown in fig. 1 and 2, in a preferred embodiment, the transmission member comprises a driving connecting piece 6, a driving bearing 8, a driving gear 4 and a driven gear 5, wherein the driving gear 4 expounds the power generated by the motor 1 to the driving connecting piece 6 through the driven gear 5, and the driving connecting piece 6 is connected with the differential 2 through the driving bearing 8; the output member comprises a driving shaft bevel gear 204, a differential bearing 9, an output bearing 10 and an external connecting piece 12, wherein one end of the driving shaft bevel gear 204 is connected with the differential 2 through the differential bearing 9, and the other end of the driving shaft bevel gear is connected with the outside through the output bearing 10 and the external connecting piece 12. In a preferred embodiment, the external connectors are hexagonal connection posts.

The housing 3 comprises a first housing 301 and a second housing 302, a first fixing slot 3011 for fixing the electric motor 1 is arranged in the first housing 301, and a second fixing slot 3021 for fixing the differential 2 is arranged in the second housing 302; the housing 3 not only protects the electric motor 1 and the differential 2, but also fixes the positions of the electric motor 1 and the differential 2, so as to ensure that the positional relationship between the electric motor 1 and the differential 2 is kept relatively static.

As shown in fig. 3, the first fixing slot 3011 is a cylindrical cavity having an inner diameter equal to an outer diameter of the motor 1. In the preferred embodiment of the present application, one end of the cavity of the first fixing slot 3011 can be placed in the motor 1, and the other end is provided with a limiting hole for the end of the motor 1 to pass through and having a certain limiting effect on the position of the motor 1. In a preferred embodiment, the position and size of the limit hole is the same as the motor output shaft of the motor 1.

As shown in fig. 3 and 4, the first housing 301 further has an end surface of an arc-shaped space below the first fixing slot 3011 for fixing the motor 1. This end face corresponds to the second housing 302, fixes the position of the differential 2, and protects it. In a preferred embodiment, a structural hole is formed in the center of the end face of the arc-shaped space and used for fixing the linkage assembly. In a preferred embodiment, a through hole, i.e. the structural hole in the above, is formed in the center of the end surface of the arc-shaped space, and the size of the through hole is the same as that of the driving connecting piece, so that the driving connecting piece is fixed in the positions of the first shell and the second shell.

As shown in fig. 5 and 6, a second fixing groove 3021 for fixing the differential 2 is formed in the second housing 302, and as shown in fig. 2, the second housing 302 is engaged with the first housing 301 to surround and fix and protect the differential 2. In the embodiment, preferably, the second housing 302 only encloses and fixes the differential 2, and does not relate to the protection of the electric motor 1, and the first housing and the second housing are detachably connected, so that the design is convenient for subsequent replacement and maintenance of the electric motor and the differential; in a preferred embodiment of the present application, the first and second housings are connected by bolting.

As can be seen from fig. 1 to 6, the electric motor 1 is fixed on the upper portion of the spatial structure of the differential 2, and thus, the arrangement space of the electric motor 1 is closely linked with the arrangement space of the differential 2, so that the utilization rate of the internal space of the power output device is greatly improved, the overall space occupation volume of the power output device is reduced, the spatial volume of the model car is reduced, and the heavy impression of the visual sense caused by the overlarge volume of the model car is reduced.

As shown in fig. 7, the differential includes a large differential bevel 201, a differential shaft 202, a small differential bevel 203, and a drive shaft bevel 204. One side of the large differential bevel gear 201 is provided with an installation limit for fixing the small differential bevel gear 203, and the center of the circular gear of the large differential bevel gear 201 is provided with an opening with the same diameter as that of the differential shaft 202 for fixing the differential shaft 202. The central position of the bevel gear of the driving shaft bevel gear 204 is provided with a circular limiting hole with the diameter the same as that of the differential shaft 202, the depth of the limiting hole is slightly longer than half of the length of the differential shaft 202, and the driving shaft bevel gear 204 is arranged on the differential shaft 202 from two sides through the limiting hole, so that the driving shaft bevel gear 204 is meshed with the small differential bevel gear 203. In the preferred embodiment of this application, big umbrella tooth of differential (201) and differential axle (202) are integrated design, little umbrella tooth of differential (203) with drive shaft umbrella tooth (204) are integrated design, and this setting method has improved the holistic standardization degree of differential, compares with conventional differential and outside connected mode, makes big umbrella tooth of differential and the little umbrella tooth of differential directly mesh with the outside to carry out the conduction of power, retrencied the quantity of functional installation component, retrencied the use of a set of drive shaft and drive shaft umbrella tooth at least, make power output device's equipment simple, improved the standardization degree of integral erection, reduced manufacturing cost simultaneously.

As can be seen in fig. 7, the drive shaft bevel 204 includes a bevel portion and a shaft portion, the bevel portion including a bevel and a bearing mounting area.

In the embodiment of the present application, it is further preferable that the housing 3 is provided with protective connecting wings 11, and the protective connecting wings 11 are disposed at the left and right sides of the housing 3 to protect the connecting assembly extending out of the housing 3; as shown in fig. 2, the protection connecting wings 11 are respectively disposed on the left and right sides of the first housing 301, and on the left and right sides of the second housing 302; in the preferred embodiment, the protective connecting wing 11 is a part of the housing 3, and is integrally formed. As shown in fig. 2, the protection connecting wings of the first casing 301 are fastened with the protection connecting wings of the second casing 302, a triangular protection supporting structure is formed on both sides of the casing, and the fastening connection part of the protection connecting wings 11 of the first casing 301 and the second casing 302 at the end is provided with a structural hole for the driving shaft umbrella teeth 204 to pass through.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A power output apparatus characterized by comprising:

an electric motor (1), a power supply device;

a differential (2) for rolling the left and right wheels at different rotational speeds to adjust the rotational speed difference between the left and right wheels when the vehicle is turning;

a housing (3) for fixing the electric motor (1) and the differential (2), comprising a first housing (301) and a second housing (302);

the electric motor (1) and the differential (2) are arranged in the shell (3) through a linkage assembly, a first fixing groove (3011) for fixing the electric motor (1) is formed in the first shell (301), and a second fixing groove (3021) for fixing the differential (2) is formed in the second shell (302); the first shell (301) and the second shell (302) are connected in a buckling mode.

2. A power take-off according to claim 1, characterised in that the housing (3) is provided with a limiting aperture for fixing at least one of the electric motor (1), the differential (2) and/or the linkage assembly.

3. A power output apparatus in accordance with claim 2, characterized in that said interlocking unit comprises at least:

and the output member is connected with the differential and outputs the power regulated by the differential.

4. A power take-off according to claim 3, characterised in that the transmission member comprises at least a drive connection (6), a metal washer (7), a drive bearing (8), a driving gear (4), a driven gear (5); the driving gear (4) transmits power generated by the motor (1) to the driving connecting piece (6) through the driven gear (5), and the driving connecting piece (6) is connected with the differential mechanism (2) through the metal gasket (7) and the driving bearing (8).

5. A power take-off according to claim 4, characterised in that the driving gear (4) and the driven gear (5) are arranged outside the housing (3), that the drive connection (6) is arranged inside the housing (3), that the electric motor (1) is connected to the driving gear (4) via the limiting aperture, and that the drive connection (6) is connected to the driven gear (5) via the limiting aperture arranged in the housing (3).

6. A power take-off according to claim 3, characterised in that the output member comprises at least a differential gear (9), an output bearing (10) and an external connection (12); one end of the output member is connected with the differential (2), and the other end of the output member is connected with the outside through the output bearing (10) and the external connecting piece (12).

7. A power take-off according to claim 1, characterized in that the differential (2) comprises a large differential bevel (201), a differential shaft (202), a small differential bevel (203), a drive shaft bevel (204), wherein the large differential bevel (201) is of integral design with the differential shaft (202) and the small differential bevel (203) is of integral design with the drive shaft bevel (204).

8. A power output apparatus in accordance with claim 1, wherein the housing (3) is provided with guard connecting wings (11), and the guard connecting wings (11) are provided on both left and right sides of the housing (3) to protect the interlocking member extending from the housing (3).

9. A power take-off according to claim 8, characterised in that the protective connecting wing (11) is arranged in its entirety in a triangular shape.

10. A power take-off according to claim 9, characterised in that connection prevention wings are provided on both the first casing (301) and the second casing (302) of the casing (3).