Planet wheel support forge piece structure for new energy vehicle

Abstract

The utility model belongs to the field of new energy vehicles, and provides a planet wheel support forge piece structure for a new energy vehicle, which comprises a flange part, a first connecting part and a second connecting part. The first connecting part is connected to the center of the flange part and forms a conical structure gradually shrinking towards the center in the direction away from the flange part, a through hole in the direction of the central axis of the first connecting part is formed in the first connecting part, and the through hole extends to the flange part and penetrates through the flange part; the second connecting parts are connected to the surface of the side, away from the first connecting part, of the flange part in the thickness direction of the flange part, the multiple second connecting parts are evenly arranged around the center of the flange part, and each second connecting part comprises a frustum-shaped extending section connected to the flange part and a linear extending section connected to the frustum-shaped extending section. The frustum-shaped extension section forms a conical structure opposite to the height direction of the first connecting part in the direction away from the flange part.

Description

Technical Field

[0001] The present application belongs to the field of new energy vehicles, and more specifically, relates to a planetary gear bracket forging structure for new energy vehicles. Background Art

[0002] With the rapid development of new energy vehicle technology, the requirements for vehicle transmission systems are also increasing. As an important component of the transmission system of new energy vehicles, planetary gear brackets are widely used in key parts such as automatic transmissions and differentials. Their main function is to connect and support planetary gears to achieve power transmission and speed regulation. However, due to poor structural design, traditional planetary gear brackets are prone to insufficient structural strength and pose hidden dangers to driving safety. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a planetary gear bracket forging structure for new energy vehicles to solve the technical problem of insufficient strength of the planetary gear bracket in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a planetary gear bracket forging structure for new energy vehicles, including:

[0005] Flange;

[0006] A first connecting portion is connected to the center of the flange portion and forms a tapered structure that gradually contracts toward the center in a direction away from the flange portion, wherein a through hole is formed on the first connecting portion along the central axis thereof, and the through hole extends to the flange portion and passes through the flange portion;

[0007] A plurality of second connection parts are connected to a surface of a side of the flange part away from the first connection part and are evenly arranged around the center of the flange part along the thickness direction of the flange part, the second connection part includes a frustoconical extension section connected to the flange part and a straight extension section connected to the frustoconical extension section and used for mounting a planetary gear, the frustoconical extension section forms a conical structure in a direction away from the flange part that is opposite to the height direction of the first connection part.

[0008] Optionally, a first arc transition in an arc shape is formed between the first connecting portion and the flange portion, and the first connecting portion is smoothly connected to the flange portion through the first arc transition.

[0009] Optionally, the flange portion is used to connect one side of the first connecting portion to form a first surface perpendicular to its thickness direction and a second surface arranged at an angle to the first surface, and the first surface is connected to the first arc transition through the second surface;

[0010] An end of the second surface used for connecting to the first arc transition is farther away from the flange portion in the thickness direction of the flange portion than an end of the second surface used for connecting to the first surface.

[0011] Optionally, a second arc transition in an arc shape is formed between the second connecting portion and the flange portion, and the second connecting portion is smoothly connected to the flange portion through the second arc transition.

[0012] Optionally, a surface of one side of the flange portion used for connecting to the second connecting portion is recessed to form an avoidance cavity connected to the through hole;

[0013] The avoidance cavity is located in a spacing space adjacent to the second connecting portion.

[0014] Optionally, the flange portion, the first connecting portion and the second connecting portion are forged integrally.

[0015] The beneficial effect of the planetary gear bracket forging structure for new energy vehicles provided by the present application is that: compared with the prior art, in the planetary gear bracket forging structure for new energy vehicles provided by the present application, the first connecting part and the second connecting part are connected to the opposite sides of the flange part along the thickness direction and the frustum-shaped extension sections of the first connecting part and the second connecting part respectively form conical structures with opposite height directions, which can greatly improve the overall structural strength of the planetary gear bracket, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A top view of the overall structure of a planetary gear support forging structure for a new energy vehicle provided in an embodiment of the present application;

[0018] Figure 2 For along Figure 1 Cross-sectional structure diagram along line AA.

[0019] Among them, the figure marks in the figure are: 101, flange part; 102, first connecting part; 103, through hole; 104, second connecting part; 105, frustum-shaped extension section; 106, straight extension section; 107, first arc transition; 108, first surface; 109, second surface; 110, second arc transition; 111, avoidance cavity. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] Please also read Figure 1 and Figure 2, a planetary gear bracket forging structure for new energy vehicles provided in an embodiment of the present application is now described. The planetary gear bracket forging structure for new energy vehicles includes a flange portion 101, a first connecting portion 102 and a second connecting portion 104. Among them, the first connecting portion 102 is connected to the center of the flange portion 101 and forms a conical structure that gradually shrinks toward the center in the direction away from the flange portion 101. A through hole 103 is formed on the first connecting portion 102 along the direction of its own central axis. The through hole 103 extends to the flange portion 101 and passes through the flange portion 101. The purpose of setting the through hole 103 in this embodiment is to adapt to the rotating shaft for driving the planetary gear. The second connection portion 104 is connected to the side surface of the flange portion 101 away from the first connection portion 102 along the thickness direction of the flange portion 101 and is evenly arranged around the center of the flange portion 101. The second connection portion 104 includes a frustoconical extension section 105 connected to the flange portion 101 and a straight extension section 106 connected to the frustoconical extension section 105 and used for mounting the planetary gear. The frustoconical extension section 105 forms a conical structure in the direction away from the flange portion 101 and opposite to the height direction of the first connection portion 102.

[0025] According to the above structure provided in the present embodiment, since in the planetary gear bracket forging structure for new energy vehicles provided in the present embodiment, the first connecting part 102 and the second connecting part 104 are connected to the opposite sides of the flange part 101 along the thickness direction and the frustum-shaped extension sections 105 of the first connecting part 102 and the second connecting part 104 respectively form conical structures with opposite height directions, the overall structural strength of the planetary gear bracket can be greatly improved, which is far superior to the prior art.

[0026] It should be noted that, in the production process of the planetary gear bracket forging structure for new energy vehicles in this embodiment, the gradient of the first connecting portion 102 and the gradient of the frustum-shaped extension section 105 of the second connecting portion 104 can be flexibly set according to production needs. For the sake of convenience of explanation, this embodiment takes the angle between the two opposite sides of the first connecting portion 102 as 12° and the angle between the two opposite sides of the frustum-shaped extension section 105 as 21° as an example for explanation.

[0027] In another embodiment of the present application, please refer to Figure 1 and Figure 2A first arc transition 107 in the shape of an arc is formed between the first connection portion 102 and the flange portion 101, and the first connection portion 102 is smoothly connected to the flange portion 101 through the first arc transition 107. According to the above structure provided in this embodiment, by setting the first arc transition 107 between the first connection portion 102 and the flange portion 101, the connection strength between the first connection portion 102 and the flange portion 101 can be significantly increased, thereby further improving the structural strength of the planetary gear bracket forging structure for new energy vehicles provided in this embodiment. It should be noted that in the production and manufacturing process of the planetary gear bracket forging structure for new energy vehicles in this embodiment, the radius of the first arc transition can be flexibly set as needed. For the sake of convenience, the radius of the first arc transition 107 is 23 mm as an example for explanation in this embodiment.

[0028] In another embodiment of the present application, please refer to Figure 1 and Figure 2 The flange portion 101 is used to connect one side of the first connection portion 102 to form a first surface 108 perpendicular to its thickness direction and a second surface 109 arranged at an angle to the first surface 108, and the first surface 108 is connected to the first arc transition 107 through the second surface 109. In this embodiment, the end of the second surface 109 used to connect to the first arc transition 107 is farther away from the flange portion 101 in the thickness direction of the flange portion 101 than the end of the second surface 109 used to connect to the first surface 108.

[0029] According to the above structure provided in this embodiment, the second surface 109 inclined relative to the first surface 108 can increase the thickness of the first connecting portion 102, thereby facilitating further improving the structural strength of the planetary gear support forging structure for new energy vehicles provided in this embodiment. It should be noted that in the production and manufacturing process of the planetary gear support forging structure for new energy vehicles in this embodiment, the inclination angle of the second surface 109 relative to the first surface 108 can be flexibly set as needed. For the sake of convenience, this embodiment is described by taking the angle of 174° between the second surface 109 and the first surface 108 as an example.

[0030] In another embodiment of the present application, please refer to Figure 1 and Figure 2A second arc transition 110 in an arc shape is formed between the second connection portion 104 and the flange portion 101, and the second connection portion 104 is smoothly connected to the flange portion 101 through the second arc transition 110. According to the above structure provided in this embodiment, by providing the second arc transition 110 between the second connection portion 104 and the flange portion 101, the connection strength between the second connection portion 104 and the flange portion 101 can be significantly increased, thereby further improving the structural strength of the planetary gear support forging structure for new energy vehicles provided in this embodiment.

[0031] In another embodiment of the present application, please refer to Figure 1 and Figure 2 , the surface of one side of the flange portion 101 used to connect to the second connecting portion 104 is recessed to form an avoidance cavity 111 connected to the through hole 103, and the avoidance cavity 111 is located in the interval space between adjacent second connecting portions 104. According to the above structure provided in the present embodiment, setting the avoidance cavity 111 in the interval space between adjacent second connecting portions 104 can disperse the forces between the various parts of the planetary gear bracket forging structure for new energy vehicles provided in the present embodiment, which is beneficial to further improve the structural strength of the planetary gear bracket forging structure for new energy vehicles provided in the present embodiment. It should be noted that in the production and manufacturing process of the planetary gear bracket forging structure for new energy vehicles in the present embodiment, the shape of the avoidance cavity 111 is not limited and can be flexibly set according to design requirements. For the sake of convenience of explanation, the present embodiment takes the avoidance cavity 111 as an arc-shaped cavity with a radius of 9 mm as an example for explanation.

[0032] In another embodiment of the present application, please refer to Figure 1 and Figure 2 , the flange part 101, the first connecting part 102 and the second connecting part 104 are integrally forged. According to the above structure provided in this embodiment, the integrally forged flange part 101, the first connecting part 102 and the second connecting part 104 can make the planetary gear support forging structure for new energy vehicles provided in this embodiment have higher structural strength than the planetary gear support in the casting or welding form in the prior art.

[0033] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A planetary gear support forging structure for new energy vehicles, characterized in that: include: Flange portion (101); A first connecting portion (102) is connected to the center of the flange portion (101) and forms a tapered structure that gradually contracts toward the center in a direction away from the flange portion (101); a through hole (103) is formed on the first connecting portion (102) along the direction of its own central axis; the through hole (103) extends to the flange portion (101) and penetrates the flange portion (101); A plurality of second connection portions (104) are connected to a surface of a side of the flange portion (101) away from the first connection portion (102) along the thickness direction of the flange portion (101) and are evenly arranged around the center of the flange portion (101); the second connection portion (104) comprises a frustoconical extension section (105) connected to the flange portion (101) and a straight extension section (106) connected to the frustoconical extension section (105) and used for mounting a planetary gear; the frustoconical extension section (105) forms a conical structure in a direction away from the flange portion (101) in a direction opposite to the height direction of the first connection portion (102).

2. The planetary gear support forging structure for new energy vehicles according to claim 1, characterized in that: A first arc transition (107) in the shape of an arc is formed between the first connecting portion (102) and the flange portion (101), and the first connecting portion (102) is smoothly connected to the flange portion (101) via the first arc transition (107).

3. The planetary gear support forging structure for new energy vehicles according to claim 2, characterized in that: The flange portion (101) is used to connect one side of the first connecting portion (102) to form a first surface (108) perpendicular to its thickness direction and a second surface (109) arranged at an angle to the first surface (108), and the first surface (108) is connected to the first arc transition (107) via the second surface (109); An end of the second surface (109) used for connecting to the first arc transition (107) is further away from the flange portion (101) in the thickness direction of the flange portion (101) than an end of the second surface (109) used for connecting to the first surface (108).

4. The planetary gear support forging structure for new energy vehicles according to claim 2, characterized in that: A second arc transition (110) in the shape of an arc is formed between the second connection portion (104) and the flange portion (101), and the second connection portion (104) is smoothly connected to the flange portion (101) via the second arc transition (110).

5. The planetary gear support forging structure for new energy vehicles according to claim 1, characterized in that: A surface of one side of the flange portion (101) used for connecting to the second connecting portion (104) is recessed to form an avoidance cavity (111) connected to the through hole (103); The avoidance cavity (111) is located in a spacing space adjacent to the second connecting portion (104).

6. The planetary gear support forging structure for new energy vehicles according to claim 1, characterized in that: The flange portion (101), the first connection portion (102) and the second connection portion (104) are integrally forged.

Images