Remote control car power transmission structure and its remote control car

Abstract

The present invention discloses a power transmission structure for a remote control vehicle and the remote control vehicle, comprising: a driving device provided with an output shaft for providing power output; a reduction module connected to the output shaft, the reduction module including a main gear and a driven gear, the main gear being snap-fitted to the output shaft, the driven gear being in transmission connection with the main gear, and the axis of the driven gear being collinear with the axis of the output shaft; an output module in transmission connection with the driven gear, the axis of rotation of the output module being perpendicular to the axis of the output shaft, and two output ends being respectively provided on both sides of the output module, and the two output ends being symmetrically arranged with respect to the axis of the output shaft; which can distribute the weights of the driving device and the reduction module as evenly as possible throughout the remote control vehicle, thereby improving the stability and driving speed of the remote control vehicle during driving.

Description

Technical Field

[0001] The invention relates to the field of remote control vehicles, and in particular to a remote control vehicle power transmission structure and a remote control vehicle thereof. Background Art

[0002] A car model is a scale model made in strict proportion to the shape, structure, color, and even interior parts of a real car. In order to reproduce a real car, the model maker will not modify or exaggerate the appearance of the prototype car, let alone imagine a car out of thin air. Many toy cars may also imitate a real car, but manufacturers often make arbitrary modifications based on customer preferences and production technology limitations, which is very arbitrary. Toy designers can also give full play to their imagination to launch cars that do not exist in reality, but this kind of imagination is "not allowed" for car models. In addition to the overall appearance, the details of the car model should also be highly simulated. Often the entire car model will be composed of hundreds or even more parts, and each part is a reduction of the corresponding parts of the original model. The more parts of the car model and the finer the parts are, the higher the production process of this car model. However, the detail expression of toy cars is far from the level of car models, and many details are ignored or made together with the same material. Car models have a high collection value because they truly reproduce the main features of the original car and are well-made. They contain car culture.

[0003] Nowadays, most car models are authorized by real car manufacturers, and their appearance is almost the same as that of real cars, with a very high degree of simulation. However, the engine assembly inside the car model is different from that of the real car. Because some car models on the market use electric motors as the main power output, manufacturers will design a power transmission structure that is compatible with the actual shape and structure of the remote control car model. The general power transmission structure includes a drive device, a reduction module and an output module. The overall layout of the drive device, reduction module and output module of the existing power transmission structure is asymmetric, resulting in asymmetric weight distribution of the entire power transmission structure, which will be very unstable during high-speed operation of the power transmission structure, thereby reducing the stability and driving speed of the entire remote control car. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a remote control car power transmission structure and a remote control car thereof, wherein the driving device, the reduction module and the output module inside the structure can be symmetrically distributed, so that the weight distribution of the entire power transmission structure is symmetrical and remains stable during high-speed operation, thereby improving the stability and driving speed of the remote control car during driving.

[0005] The power transmission structure of a remote control car according to an embodiment of the first aspect of the present invention includes: a driving device provided with an output shaft for power output; a reduction module connected to the output shaft, the reduction module including a main gear and a driven gear, the main gear is snap-fitted to the output shaft, the driven gear is in transmission connection with the main gear, and the axis of the driven gear is collinear with the axis of the output shaft; an output module in transmission connection with the driven gear, the rotation axis of the output module is perpendicular to the axis of the output shaft, and two output ends are respectively provided on both sides of the output module, both output ends are located in the axial direction of the output module, and the two output ends are symmetrically arranged with respect to the axis of the output shaft.

[0006] The power transmission structure of a remote control car according to an embodiment of the present invention has at least the following beneficial effects:

[0007] By snap-fitting the output shaft on the driving device to the main gear, the output shaft can drive the main gear to rotate, and the driven gear is in transmission connection with the main gear. The axis of the driven gear is collinear with the axis of the output shaft, and the main gear and the driven gear are both located in the extending direction of the output shaft, so that the weight distribution of the driving device and the reduction module in the entire power transmission structure is in a symmetrical state. Therefore, even when the output shaft, the main gear, and the driven gear rotate at high speed, they will not affect the stability of the remote control car. At the same time, the output module is in transmission connection with the driven gear, and the axis of the output module is perpendicular to the axial direction of the output shaft. Output ends for connecting with the wheels are provided on both sides of the output module, and both output ends are located in the axial direction of the output module. Therefore, the driving device and the reduction module are both distributed in the middle of the remote control car along the axis of the output shaft, and the weights of the driving device and the reduction module can be evenly distributed in the entire remote control car as much as possible, thereby improving the smoothness and driving speed of the remote control car during driving.

[0008] According to some embodiments of the present invention, the reduction module is a planetary reduction gear set.

[0009] According to some embodiments of the present invention, the reduction module further includes an annular internal gear, a turntable, and a plurality of reduction gears. One side of the turntable away from the main gear is snap-fitted to the driven gear, and an installation post protrudes from the other side. The plurality of reduction gears are rotatably arranged on the installation post. The plurality of reduction gears and the main gear are both arranged in the annular internal gear. The plurality of reduction gears are circumferentially distributed between the main gear and the annular internal gear. The plurality of reduction gears are respectively meshed with the main gear and the annular internal gear. The main gear can drive the plurality of reduction gears to rotate simultaneously to drive the turntable to rotate under the cooperation of the annular internal gear.

[0010] According to some embodiments of the present invention, the output module includes an output gear and a differential gear set. The output gear meshes with the driven gear, the differential gear set is mounted on the output gear, and the output gear can drive the differential gear set to rotate around the axis of the output gear.

[0011] According to some embodiments of the present invention, connection parts are provided on the two output ends. The differential gear set is respectively connected to the two connection parts, and the differential gear set can drive the two connection parts to rotate.

[0012] According to some embodiments of the present invention, both the output gear and the driven gear are bevel gears.

[0013] According to some embodiments of the present invention, a housing is further included. The output module is rotatably arranged in the housing, and a first bearing is provided between the output module and the housing.

[0014] According to some embodiments of the present invention, the driven gear is also rotatably arranged in the housing, and a second bearing is provided between the driven gear and the housing.

[0015] According to the second aspect of the embodiments of the present invention, a remote control vehicle includes a chassis for providing an installation position for other components; a remote control vehicle power transmission structure arranged on the chassis and symmetrically arranged along the central axis in the length direction of the chassis.

[0016] According to the second aspect of the embodiments of the present invention, the remote control vehicle further includes a battery arranged on the chassis, and the battery is located on the side of the driving device away from the reduction module and is electrically connected to the driving device.

[0017] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the drawings and embodiments, where:

[0019] Figure 1 is a three-dimensional schematic diagram of the remote control vehicle power transmission structure according to the embodiment of the present invention;

[0020] Figure 2 is Figure 1 the internal structure schematic diagram of the remote control vehicle power transmission structure shown in;

[0021] Figure 3 is Figure 1Exploded view of the speed reduction module shown in

[0022] Figure 4 is Figure 1 Schematic diagram of the internal structure of the speed reduction module shown in

[0023] Figure 5 is Figure 2 Exploded view of the drive device, speed reduction module and output module shown in

[0024] Figure 6 is Figure 5 Exploded view of the output module shown in

[0025] Figure 7 is Figure 5 Cross-sectional view of the output module shown in

[0026] Figure 8 Assembled three-dimensional schematic diagram of the power transmission structure and chassis of the remote control car according to the embodiment of the present invention.

[0027] Reference numerals:

[0028] 100 drive device, 110 output shaft,

[0029] 200 speed reduction module, 210 main gear, 220 driven gear, 230 reduction gear, 240 turntable, 250 annular internal gear,

[0030] 300 output module, 310 output gear, 320 differential gear set, 330 output end, 331 connecting portion,

[0031] 400 housing, 410 first bearing, 420 second bearing,

[0032] 500 battery,

[0033] 600 chassis. Detailed implementation manners

[0034] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.

[0036] In the description of the present invention, the meaning of "several" is more than one, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0038] In the description of the present invention, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] Next, refer to Figures 1 to 8 Describe the power transmission structure of a remote control vehicle according to an embodiment of the present invention.

[0040] As Figures 1 to 8 shown, the power transmission structure of a remote control vehicle according to an embodiment of the present invention includes a driving device 100, a speed reduction module 200, and an output module 300.

[0041] An output shaft 110 for providing power output is provided on the driving device 100; the speed reduction module 200 is connected to the output shaft 110. The speed reduction module 200 includes a main gear 210 and a driven gear 220. The main gear 210 is engaged and connected to the output shaft 110, the driven gear 220 is in transmission connection with the main gear 210, and the axis of the driven gear 220 is collinear with the axis of the output shaft 110; the output module 300 is in transmission connection with the driven gear 220, the rotation axis of the output module 300 is perpendicular to the axis of the output shaft 110, and two output ends 330 are respectively provided on both sides of the output module 300. Both output ends 330 are located in the axial direction of the output module 300, and the two output ends 330 are symmetrically arranged about the axis of the output shaft 110.

[0042] For example, as Figures 1 to 8As shown, an output shaft 110 for providing power output is provided on the driving device 100, and the output shaft 110 can rotate under the drive of the driving device 100; the reduction module 200 is in transmission connection with the output shaft 110. The reduction module 200 includes a main gear 210 and a driven gear 220. The main gear 210 is snap-connected to the output shaft 110, and the driven gear 220 is in transmission connection with the main gear 210. The main gear 210 can drive the driven gear 220 to rotate by rotation. The axis of the driven gear 220 is collinear with the axis of the output shaft 110. Thus, both the main gear 210 and the driven gear 220 are located in the extending direction of the output shaft 110. The output module 300 is in transmission connection with the driven gear 220, and the driven gear 220 can drive the output module 300 to rotate. Driven by the driven gear 220, the output module 300 can rotate around its own axis. The axis of the output module 300 is perpendicular to the axis of the output shaft 110. Two output ends 330 are respectively provided on both sides of the output module 300. The axis of the output shaft 110 is located between the two output ends, and the distances between the two output ends and the axis of the output shaft are the same. Both output ends 330 are located in the axial direction of the output module 300, and the two output ends 330 are mainly used to connect with the wheels of the remote control car.

[0043] Among them, in this embodiment, a special-shaped engaging hole is provided in the middle of the main gear 210. The shape of the output shaft 110 is adapted to the shape of the engaging hole. After the output shaft 110 is snap-fitted in the engaging hole, the rotation of the output shaft 110 can drive the main gear 210 to rotate together.

[0044] Specifically, by engaging and connecting the output shaft 110 on the driving device 100 with the main gear 210, the output shaft 110 can drive the main gear 210 to rotate. And the driven gear 220 is in transmission connection with the main gear 210. The axis of the driven gear 220 is collinear with the axis of the output shaft 110. Both the main gear 210 and the driven gear 220 are located in the extending direction of the output shaft 110, so that the weight distribution of the driving device 100 and the reduction module 200 in the entire power transmission structure is in a symmetrical state. Thus, even when the output shaft 110, the main gear 210, and the driven gear 220 rotate at high speed, they will not affect the stability of the remote control vehicle. At the same time, the output module 300 is in transmission connection with the driven gear 220, and the axis of the output module 300 is perpendicular to the axial direction of the output shaft 110. Output ends 330 for connecting with the wheels are provided on both sides of the output module 300. Both output ends 330 are located in the axial direction of the output module 300. Therefore, the driving device 100 and the reduction module 200 are both distributed along the axis direction of the output shaft 110 in the middle of the remote control vehicle, and can evenly distribute the weights of the driving device 100 and the reduction module 200 in the entire power transmission structure as much as possible. Thus, the entire power transmission structure remains stable during high-speed operation, improving the smoothness and driving speed of the remote control vehicle during driving.

[0045] In some embodiments of the present invention, the reduction module 200 is a planetary reduction gear set. For example, as Figure 3 and Figure 4 shown, since the planetary reduction gear set is centrosymmetric along its own axis during operation, by designing the reduction module 200 as a planetary reduction gear set, the stability of the power transmission structure of the remote control vehicle during operation can be better improved, thereby improving the smoothness during the driving of the remote control vehicle.

[0046] In some embodiments of the present invention, the reduction module 200 further includes an annular internal gear 250, a turntable 240, and several reduction gears 230. The side of the turntable 240 away from the main gear 210 is engaged and connected with the driven gear 220, and the other side is convexly provided with a mounting post. Several reduction gears 230 are rotatably arranged on the mounting post. Several reduction gears 230 and the main gear 210 are both arranged in the annular internal gear 250. Several reduction gears 230 are circumferentially distributed between the main gear 210 and the annular internal gear 250. Several reduction gears 230 are respectively meshed with the main gear 210 and the annular internal gear 250. The main gear 210 can drive several reduction gears 230 to rotate simultaneously to drive the turntable 240 to rotate under the cooperation of the annular internal gear 250. For example, as Figure 3 and Figure 4As shown, in this embodiment, the number of reduction gears 230 is three. The annular internal gear 250 is fixedly arranged in the entire power transmission structure. The main gear 210 and the three reduction gears 230 are all located inside the annular internal gear 250. The three reduction gears 230 are circumferentially distributed on the outer peripheral side of the main gear 210. The main gear 210 meshes with the reduction gears 230, and the reduction gears 230 also mesh with the annular internal gear 250. The turntable 240 is rotatably arranged between the main gear 210 and the driven gear 220. The axis of the turntable 240 is collinear with the axis of the output shaft 110. When the main gear 210 rotates driven by the output shaft 110, it can drive the three reduction gears 230 to rotate together. At this time, the reduction gears 230 will perform a circular motion in the direction opposite to the rotation direction of the main gear 210 under the action of the annular internal gear 250, and at the same time drive the turntable 240 to rotate, so that the driven gear 220 also rotates with the turntable 240, realizing speed reduction transmission.

[0047] In some embodiments of the present invention, the output module 300 includes an output gear 310 and a differential gear set 320. The output gear 310 meshes with the driven gear 220. The differential gear set 320 is installed on the output gear 310. The output gear 310 can drive the differential gear set 320 to rotate around the axis of the output gear 310. For example, as Figure 2 、 5 to Figure 7 shown, the output gear 310 meshes with the driven gear 220. Driven by the driven gear 220, the entire output module 300 can rotate around its own axis, thereby driving the output ends 330 on both sides of the output module 300 to rotate, so as to drive the wheels to rotate.

[0048] In some embodiments of the present invention, connection parts 331 are provided on the two output ends 330. The differential gear set 320 is respectively connected to the two connection parts 331. The differential gear set 320 can drive the two connection parts 331 to rotate. For example, as Figure 2 、 Figure 5 、 Figure 6 and Figure 7 shown, in this embodiment, an installation cover is provided on the outside of the differential gear set 320. The installation cover is installed on the output gear 310. Among them, the differential gear set 320 is snap-fitted with the gear cover. Driven by the output gear 310, the differential gear set 320 rotates together with the installation cover. At the same time, the two connection parts 331 are respectively snap-fitted with the half-axle gears on the differential gear set 320, so that the connection parts 331 can rotate with the differential gear set 320, thereby realizing power output.

[0049] In some embodiments of the present invention, both the output gear 310 and the driven gear 220 are bevel gears. For example, as Figure 2 、 Figure 5and Figure 6 As shown, by designing the output gear 310 and the driven gear 220 as bevel gears, the transmission is achieved when the rotation axes of the driven gear 220 and the output gear 310 are perpendicular to each other, which can better adapt to the internal shape of the remote control car, making the structure compact and saving space.

[0050] In some embodiments of the present invention, the power transmission structure of the remote control car further includes a housing 400, the output module 300 is rotatably disposed in the housing 400, and a first bearing 410 is provided between the output module 300 and the housing 400. For example, as Figure 2 shown, the housing 400 is used to provide an installation position for the power transmission structure of the remote control car. By providing a first bearing 410 between the output module 300 and the housing 400, it can assist the output module 300 to rotate in the housing 400 and minimize the frictional resistance generated during the rotation process.

[0051] In some embodiments of the present invention, the driven gear 220 is also rotatably disposed in the housing 400, and a second bearing 420 is provided between the driven gear 220 and the housing 400. For example, as Figure 2 shown, by providing a second bearing 420 between the driven gear 220 and the housing 400, it can assist the driven gear 220 to rotate in the housing 400 and minimize the frictional resistance generated during the rotation process.

[0052] Next, refer to Figure 8 to describe a remote control car according to the second embodiment of the present invention, including a chassis 600 and a power transmission structure of the remote control car.

[0053] The chassis 600 is used to provide an installation position for other components; the power transmission structure of the remote control car is disposed on the chassis 600, and the power transmission structure of the remote control car is symmetrically disposed along the central axis in the length direction of the chassis 600.

[0054] Since the interior of the power transmission structure of the remote control car itself is symmetrically arranged, symmetrically disposing it on the central axis in the length direction of the chassis 600 can make its weight symmetrically distributed on the chassis 600, making the entire remote control car run more smoothly.

[0055] In the second embodiment of the present invention, a battery is further included. The battery is disposed on the chassis 600, and the battery is located on the side of the driving device 100 away from the reduction module 200. The battery 500 is electrically connected to the driving device 100. For example, as Figure 8 shown,

[0056] In this embodiment, the battery 500 is disposed on the chassis 600. The battery 500 has a long strip structure. The battery 500 is located in the extending direction of the output shaft 110, and the extending direction of the battery 500 is consistent with the extending direction of the output shaft 110. Thus, the battery 500 can also cooperate with the power transmission structure of the remote control vehicle to evenly distribute its own weight on the chassis 600. By providing the battery 500 on the chassis 600, power can be provided to the power transmission structure.

[0057] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. The power transmission structure of a remote control car, characterized in that, Comprising: A driving device, on which an output shaft for providing power output is provided; A reduction module, the reduction module is connected to the output shaft, the reduction module includes a main gear and a driven gear, the main gear is snap-connected to the output shaft, the driven gear is in transmission connection with the main gear, and the axis of the driven gear is collinear with the axis of the output shaft; An output module, the output module is in transmission connection with the driven gear, the rotation axis of the output module is perpendicular to the axis of the output shaft, two output ends are respectively provided on both sides of the output module, both output ends are located in the axial direction of the output module, and the two output ends are symmetrically arranged about the axis of the output shaft; The reduction module further includes an annular internal gear, a turntable and a plurality of reduction gears, one side of the turntable away from the main gear is snap-connected to the driven gear, the other side is convexly provided with a mounting post, the plurality of reduction gears are rotatably arranged on the mounting post, the plurality of reduction gears and the main gear are both arranged in the annular internal gear, the plurality of reduction gears are circumferentially distributed between the main gear and the annular internal gear, the plurality of reduction gears are respectively meshed with the main gear and the annular internal gear, and the main gear can drive the plurality of reduction gears to rotate simultaneously to drive the turntable to rotate under the cooperation of the annular internal gear; The output module includes an output gear and a differential gear set, the output gear is meshed with the driven gear, the differential gear set is installed on the output gear, and the output gear can drive the differential gear set to rotate around the axis of the output gear.

2. The power transmission structure of the remote control car according to claim 1, wherein, The reduction module is a planetary reduction gear set.

3. The power transmission structure of the remote control vehicle according to claim 1, wherein Connection parts are provided on the two output ends, the differential gear set is respectively connected to the two connection parts, and the differential gear set can drive the two connection parts to rotate.

4. The power transmission structure of the remote control car according to claim 1, wherein Both the output gear and the driven gear are bevel gears.

5. The power transmission structure of the remote control vehicle according to claim 1, characterized in that It further includes a housing, the output module is rotatably arranged in the housing, and a first bearing is provided between the output module and the housing.

6. The power transmission structure of the remote control vehicle according to claim 5, wherein The driven gear is also rotatably arranged in the housing, and a second bearing is provided between the driven gear and the housing.

7. Remote control car, characterized in that, Comprising: A chassis, the chassis is used to provide an installation position for other components; The power transmission structure of the remote control vehicle as described in any one of claims 1-6, the power transmission structure of the remote control vehicle is arranged on the chassis, and the power transmission structure of the remote control vehicle is symmetrically arranged along the central axis in the length direction of the chassis.

8. The remote control car according to claim 7, characterized in that, It further includes a battery, the battery is arranged on the chassis, and the battery is located on the side of the driving device away from the reduction module, and the battery is electrically connected to the driving device.

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