Ball differential mechanism

Abstract

The ball differential mechanism comprises balls, a left extrusion part, crown teeth, a right extrusion part and a bearing, the diameter of the balls is three, the balls are installed on six groove holes of the crown teeth, the left extrusion part and the right extrusion part are arranged on the left side and the right side of the crown teeth provided with the balls in a sleeved mode respectively, and the bearing is placed in the right extrusion part. The left extrusion part and the right extrusion part are locked through screws, the faces, attached to the balls, of the left extrusion part and the right extrusion part are frosted faces, the left extrusion part is a rotation part pressing the balls, and a clamping groove is formed in the left extrusion part and used for transmitting power to the wheel. By means of the technical scheme, the problems that traditional differential mechanisms mostly adopt bevel gear structures, but for small vehicles such as 1: 43 four-wheel-drive vehicles, if the differential mechanisms are arranged on the front portion and the rear portion, the traditional bevel gears are seriously insufficient in space, and optimization and performance improvement of transmission systems of the small vehicles are limited are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ball differential mechanism technical field, concretely to a ball differential mechanism. BACKGROUND

[0002] In the vehicle transmission system, the differential mechanism is the key component for realizing the rotation of the left and right wheels at different speeds to adapt to the driving conditions such as vehicle turning, but the traditional differential mechanism adopts the umbrella tooth structure, however, for the small vehicles such as the 1:43 four-wheel drive vehicle, if the differential mechanism is equipped in front and back, the use of the traditional umbrella tooth will face the problem of serious space shortage, which limits the optimization and performance improvement of the small vehicle transmission system. SUMMARY

[0003] The utility model discloses a ball differential mechanism, has the advantages of small volume and easy assembly.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a ball differential mechanism, including ball, left extruding piece, crown tooth, right extruding piece and bearing, the diameter of ball is one point three, installs on six groove holes of crown tooth, left extruding piece and right extruding piece are respectively set in the left and right sides of the crown tooth with ball, the bearing is placed in right extruding piece, left extruding piece and right extruding piece are locked by screw, and the surface that is pasted with ball is sanding surface.

[0005] As a preferred scheme, the left extruding piece is a self-rotating piece that presses the ball, and a clamping groove is provided for transmitting power to the wheel.

[0006] As a preferred scheme, the crown tooth is used for transmitting power and driving the ball to rotate around its center of gravity.

[0007] As a preferred scheme, the right extruding piece is a self-rotating piece that presses the ball, and a clamping groove is provided for transmitting power to the wheel.

[0008] Compared with the prior art, the utility model has the beneficial effects as follows:

[0009] The utility model solves the problem that the traditional differential mechanism adopts the umbrella tooth structure, however, for the small vehicles such as the 1:43 four-wheel drive vehicle, if the differential mechanism is equipped in front and back, the use of the traditional umbrella tooth will face the problem of serious space shortage, which limits the optimization and performance improvement of the small vehicle transmission system. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structure schematic diagram of the utility model;

[0011] Figure 2 It is the structure explosion map of the utility model.

[0012] Fig. 1, ball; 2, left extrusion; 3, crown tooth; 4, right extrusion; 5, bearing. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0014] Secondly, the "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments. EMBODIMENT

[0015] Please refer to Figure 1 and Figure 2 The present application provides a ball differential, which comprises a ball 1, a left extrusion 2, a crown tooth 3, a right extrusion 4 and a bearing 5. The ball 1 has a diameter of 1.3 and is installed in six groove holes of the crown tooth 3. The left extrusion 2 and the right extrusion 4 are respectively sleeved on the left and right sides of the crown tooth 3 with the ball 1. The bearing 5 is placed in the right extrusion 4. The left extrusion 2 and the right extrusion 4 are locked by screws, and the surface in contact with the ball 1 is a frosted surface.

[0016] The technical solution solves the problem that the traditional differential mainly adopts a bevel gear structure, but for a small vehicle such as a 1:43 four-wheel drive vehicle, if a differential is provided at the front and rear, the use of a traditional bevel gear will face a serious space shortage problem, which limits the optimization and performance improvement of the transmission system of the small vehicle. EMBODIMENT

[0017] On the basis of Embodiment One, the present application is shown in Figure 1 and Figure 2 The left extrusion 2 is a self-rotating member for pressing the ball 1, and is provided with a clamping groove for transmitting power to the wheel. The crown tooth 3 is used for transmitting power and driving the ball 1 to rotate around its center of gravity. The right extrusion 4 is a self-rotating member for pressing the ball 1, and is provided with a clamping groove for transmitting power to the wheel.

[0018] By the above technical scheme, the left extrusion piece 2 is functionally integrated, the overall structure of the differential is simplified, and the use of additional components is reduced, thereby reducing the weight of the differential, the special design and function of the crown tooth 3 ensure that the ball 1 can rotate according to the predetermined motion track, thereby coordinating the speed difference of the left and right wheels.

[0019] The working principle of the utility model is: the vehicle power source transmits power to the crown tooth 3, the crown tooth 3 is a key component of power transmission, starts to rotate after receiving power, six groove holes are evenly distributed on the crown tooth 3, the ball 1 with a diameter of 1.3 is installed in the groove holes, when the crown tooth 3 rotates, the ball 1 cannot self-rotate because it is pressed tightly by the left extrusion piece 2 and the right extrusion piece 4, under the drive of the crown tooth 3, the ball 1 can only revolve around the center of gravity of the crown tooth 3, the left extrusion piece 2 and the right extrusion piece 4 are respectively sleeved on the two sides of the crown tooth 3, and the fitting surface of the ball 1 is a frosted surface, which increases the friction force and ensures that the ball 1 can effectively transmit motion with the left extrusion piece 2 and the right extrusion piece 4, when the vehicle turns or drives on different road conditions, the left and right wheels need different rotating speeds, at this time, if the left extrusion piece 2 rotates clockwise, the ball 1 will rotate reversely due to the friction force, the reverse rotation of the ball 1 further drives the right extrusion piece 4 to rotate, so that the left extrusion piece 2 and the right extrusion piece 4 have different rotating speeds, the differential function of the left and right wheels is realized, and the vehicle can smoothly turn and adapt to complex road conditions.

[0020] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various example embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) using the principles of the present application described herein without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of discrete elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed or re-sequenced without departing from the teachings of the general inventive concept. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the example embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described herein, but extends to other embodiments as would be included within the scope of the claims, only some of which are described herein.

[0021] Furthermore, in order to provide a concise description of the exemplary embodiments, not all characteristics of the actual implementation can be described (i.e., those characteristics irrelevant to the best mode of carrying out the present application currently under consideration, or those characteristics irrelevant to the implementation of the present application).

[0022] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A ball differential comprising balls (1), a left extrusion (2), a crown tooth (3), a right extrusion (4) and a bearing (5), characterized in that: The diameter of the ball (1) is one point three, installed in six slot holes of the crown tooth (3), the left extrusion piece (2) and the right extrusion piece (4) are respectively sleeved on the left and right sides of the crown tooth (3) with the ball (1), the bearing (5) is placed in the right extrusion piece (4), the left extrusion piece (2) and the right extrusion piece (4) are locked by screws, and the surface attached with the ball (1) is a frosted surface.

2. A ball differential as in claim 1, wherein: The left extrusion piece (2) is a self-rotating piece for pressing the ball (1), and is provided with a clamping groove for transmitting power to the wheel.

3. A ball differential as in claim 1 wherein: The crown tooth (3) is used for transmitting power and driving the ball (1) to rotate around its center of gravity.

4. A ball differential as in claim 1 wherein: The right extrusion piece (4) is a self-rotating piece for pressing the ball (1), and is provided with a clamping groove for transmitting power to the wheel.

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