Driving wheel with hollow structure

Abstract

The driving wheel with the hollow structure comprises a main body part, the main body part is in a circular ring shape, wheel teeth are evenly arranged on the outer circumference of the main body part, the main body part is provided with an annular cavity and a longitudinal through hole, the annular cavity is located in the center of the main body part in the thickness direction and extends in an annular mode, and the longitudinal through hole is communicated with the annular cavity. The annular cavity is formed in the main body part, the annular cavity and the main body part are concentrically distributed, and the multiple longitudinal through holes correspond to the gear teeth respectively and perpendicularly penetrate through the annular cavity. According to the driving wheel with the hollow structure, through ingenious layout and design, the overall weight of the driving wheel can be effectively reduced on the basis that the overall structural strength and stability of the driving wheel are not affected, and then the purposes of light weight and convenience are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of drive wheel products, and in particular to a drive wheel with a hollow structure. Background Art

[0002] The drive wheel is a mechanical component. As a driving component, it is mainly used to transfer the mechanical kinetic energy of the reducer to the whole machine, thereby enabling the whole machine to move. It is widely used in construction machinery or automobiles.

[0003] Under the background of rapid development of the current industrial economy, competition in all walks of life is becoming increasingly fierce. On the premise of meeting performance and usage requirements, the construction machinery industry is also developing in the direction of lightweight and convenience.

[0004] During operation, the drive wheel not only provides the power for the whole machine to move forward through friction with the ground, but also needs to bear the weight of the whole machine. At present, most drive wheel designs tend to focus on transmission stability and shock absorption performance. Therefore, the lightweight design of the drive wheel has great development prospects. Summary of the invention

[0005] The embodiment of the present application provides a driving wheel with a hollow structure, which can effectively reduce the overall weight without affecting the overall structural strength and stability through clever layout and design, thereby achieving the purpose of lightweight and convenience.

[0006] An embodiment of the present application provides a driving wheel with a hollow structure, including a main body portion, which is in a circular ring shape, and gear teeth are evenly arranged on the outer circumference of the main body portion. The main body portion is provided with an annular chamber and a longitudinal through hole, wherein the annular chamber is located at the center position of the main body portion in the thickness direction, extends in a ring shape, and is concentrically distributed with the main body portion, and there are multiple longitudinal through holes, and the multiple longitudinal through holes correspond to the gear teeth respectively, and vertically penetrate the main body portion at the annular chamber.

[0007] In a possible implementation, the distance between the annular chamber and the outer annular surface of the main body is 0.75 to 0.85 times the distance between the annular chamber and the inner annular surface of the main body.

[0008] In a possible implementation, the main body is provided with a gear tooth cavity on the outer side of the annular cavity directly opposite the gear tooth, the gear tooth cavity is connected to the annular cavity, and the gear tooth cavity is partially embedded in the gear tooth, and the maximum embedding depth of the gear tooth cavity is 0.12 to 0.18 times the maximum radial thickness of the gear tooth.

[0009] In a possible implementation, in the annular direction of the main body, the shape of the gear tooth cavity corresponds to the shape of the gear tooth; in the cross-sectional direction of the main body perpendicular to the annular direction, the gear tooth cavity is an isosceles trapezoid, and the upper base of the isosceles trapezoid is an arc-shaped transition.

[0010] In a possible implementation, the longitudinal through hole is a waist-shaped hole, and an extension direction of the waist-shaped hole is the same as an extension direction of the annular chamber.

[0011] In a possible implementation, in a radial direction perpendicular to the annular direction of the main body, the longitudinal through hole is close to the middle of the annular chamber and has a gap between the inner annular surface and the outer annular surface of the annular chamber.

[0012] In a possible implementation, the main body is symmetrically provided with annular reinforcement ribs on both sides close to the outer annular surface.

[0013] Beneficial effect: Compared with the prior art, the driving wheel with a hollow structure provided by the present application is provided with an annular chamber and a longitudinal through hole in the main body, wherein the annular chamber extends in a ring shape along the center position in the main body, and at the same time, the longitudinal through holes respectively correspond to the gear teeth and vertically penetrate the annular chamber. It can effectively reduce the overall weight of the driving wheel without affecting the overall structural strength and stability of the driving wheel, thereby achieving the purpose of lightweight and convenience, which is of great significance to the competitiveness of the product in the market.

[0014] These and other objects, features and advantages of the present invention will be fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a driving wheel with a hollow structure of the present application is shown.

[0016] Figure 2 A side cross-sectional schematic diagram of a driving wheel with a hollow structure of the present application is shown.

[0017] Figure 3 A partial front cross-sectional schematic diagram of a driving wheel with a hollow structure of the present application is shown. DETAILED DESCRIPTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0019] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0020] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0021] refer to Figures 1 to 3 An embodiment of the present application provides a driving wheel with a hollow structure, including a main body 10. The main body 10 is in a circular shape, and gear teeth 20 are evenly arranged on the outer circumference of the main body 10, and the main body 10 is provided with an annular chamber 101 and a longitudinal through hole 102, wherein the annular chamber 101 is located at the center position of the main body 10 in the thickness direction, extends in a ring shape, and is concentrically distributed with the main body 10, wherein there are multiple longitudinal through holes 102, and the multiple longitudinal through holes 102 respectively correspond to the gear teeth 20, and vertically penetrate the main body 10 at the annular chamber 101, thereby, even if the annular chamber 101 and the longitudinal through hole 102 are opened, the driving wheel is still an integrated structure, and still has good structural strength and structural stability as a whole. In addition, the annular chamber 101 and the longitudinal through hole 102 can also effectively reduce the overall weight of the driving wheel on this basis, thereby achieving the purpose of lightweight and convenience, which is of great significance to the competitiveness of the product in the market. In addition, this hollow design can also improve the mechanical properties such as vibration resistance and fatigue resistance of the overall structure of the driving wheel.

[0022] In one embodiment, the distance α between the annular chamber 101 and the outer annular surface of the main body 10 is 0.75 to 0.85 times the distance β between the annular chamber 101 and the inner annular surface of the main body 10. Specifically, when the distance between the annular chamber 101 and the outer annular surface of the main body 10 is 6.50, the distance between the annular chamber 101 and the inner annular surface of the main body 10 is 7.95. That is to say, with respect to the main body of the driving wheel alone, the annular chamber 101 is slightly close to the outer annular surface of the main body 10. At this time, the radial dimension of the gear teeth 20 is 13. Furthermore, the radial dimension of the gear teeth 20 is greater than the aforementioned two dimensions at the same time, but the gear teeth 20 are evenly spaced and do not directly cover the entire outer annular surface of the main body 10. Therefore, the annular chamber 101 is slightly close to the outer annular surface and maintains a distance range of the above multiple, rather than being greatly close to the outer annular surface. Therefore, considering the overall shape of the driving wheel, a design layout in which the ratio of the distance between the annular chamber 101 and the two is 0.75 to 0.85 times is selected. This can achieve the purpose of lightweighting through the annular chamber on the basis of fully meeting the overall structural strength and structural stability of the driving wheel.

[0023] In addition, although the gear teeth 20 do not directly cover the entire outer annular surface of the main body 10, the gear teeth 20 have a large protruding thickness at the location, so the main body 10 is provided with a gear tooth cavity 103 on the outer side of the annular cavity 101 directly opposite to the gear teeth 20, wherein the gear tooth cavity 103 is connected to the annular cavity 101, and the gear tooth cavity 103 is partially embedded in the gear teeth 20, and the maximum embedding depth A of the gear tooth cavity 103 is 0.12 to 0.18 times the maximum radial thickness B of the gear teeth 20. In this way, the structural characteristics of the gear teeth 20 can be fully utilized, and the overall weight of the driving wheel can be further reduced by partially embedding the gear tooth cavity 103 in the gear teeth 20 on the basis of meeting the overall structural strength and structural stability of the driving wheel. Specifically, when the radial dimension of the gear teeth 20 is 13, the embedding depth of the gear tooth cavity 103 is 2.

[0024] Further preferably, in the annular direction of the main body 10, the shape of the gear tooth cavity 103 corresponds to the shape of the gear tooth 20, so that the weight reduction design can be carried out to the greatest extent on the basis of satisfying the structural strength and structural stability. In addition, considering that the gear tooth 20 mainly has a rotational drive function when bearing load, therefore, in the cross-sectional direction of the main body 10 perpendicular to the annular direction, the gear tooth cavity 103 is an isosceles trapezoid, and the upper base of the isosceles trapezoid is an arc-shaped transition, thereby ensuring the local structural strength of the gear tooth 20 by the gradually decreasing arc-shaped bulge of the gear tooth cavity 103. Compared with the design of a deeper bulge into the gear tooth 20, and compared with the design directly corresponding to the shape of the gear tooth 20 (that is, the design with a flat top surface), the special design and reasonable layout of such key parts can effectively enhance the strength and rigidity of the gear tooth 20 when bearing load on the basis of weight reduction.

[0025] In one embodiment, the longitudinal through hole 102 is a waist-shaped hole, and the extension direction of the waist-shaped hole is the same as the extension direction of the annular chamber 101, so that the overall structural strength and stability of the driving wheel can be ensured while performing a weight reduction design.

[0026] Further preferably, in a radial direction perpendicular to the annular direction of the main body 10, the longitudinal through hole 102 is close to the middle of the annular chamber 101, and at the same time has a gap between the inner annular surface and the outer annular surface of the annular chamber 101, thereby preventing the longitudinal through hole 102 from destroying the structure of the annular chamber 101 at its own boundary, thereby ensuring the structural stability of the annular chamber 101 as much as possible.

[0027] In one embodiment, the main body 10 is symmetrically provided with annular reinforcement ribs 11 on both sides close to the outer annular surface, so as to improve the structural strength of the main body 10 close to the outer edge.

[0028] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A driving wheel with a hollow structure, characterized in that: It includes a main body, which is in a circular ring shape, and gear teeth are evenly arranged on the outer circumference of the main body. The main body is provided with an annular chamber and a longitudinal through hole, wherein the annular chamber is located at the center position of the main body in the thickness direction, extends in a ring shape, and is concentrically distributed with the main body, and there are multiple longitudinal through holes, and the multiple longitudinal through holes correspond to the gear teeth respectively and vertically penetrate the main body at the annular chamber.

2. The driving wheel with a hollow structure according to claim 1, characterized in that: The distance between the annular chamber and the outer annular surface of the main body is 0.75 to 0.85 times the distance between the annular chamber and the inner annular surface of the main body.

3. The driving wheel with a hollow structure as claimed in claim 2, characterized in that: The main body is provided with a gear tooth cavity on the outer side of the annular cavity facing the gear tooth. The gear tooth cavity is connected to the annular cavity, and the gear tooth cavity is partially embedded in the gear tooth. The maximum embedding depth of the gear tooth cavity is 0.12 to 0.18 times the maximum radial thickness of the gear tooth.

4. The driving wheel with a hollow structure as claimed in claim 3, characterized in that: In the annular direction of the main body, the shape of the gear tooth cavity corresponds to the shape of the gear tooth; in the cross-sectional direction of the main body perpendicular to the annular direction, the gear tooth cavity is an isosceles trapezoid, and the upper base of the isosceles trapezoid is an arc-shaped transition.

5. The driving wheel with a hollow structure according to claim 1, characterized in that: The longitudinal through hole is a waist-shaped hole, and the extending direction of the waist-shaped hole is the same as the extending direction of the annular chamber.

6. The driving wheel with a hollow structure according to claim 5, characterized in that: In a radial direction perpendicular to the annular direction of the main body, the longitudinal through hole is close to the middle of the annular chamber and has a gap between the inner annular surface and the outer annular surface of the annular chamber.

7. The driving wheel with a hollow structure according to claim 1, characterized in that: The main body is symmetrically provided with annular reinforcing ribs on both sides close to the outer annular surface.

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