Front brake hub of electric vehicle

Abstract

The utility model provides a front brake hub of an electric vehicle, and belongs to the technical field of electric vehicles. The problem that an existing hub is not matched with a small-size brake disc is solved. The front brake hub of the electric vehicle is of an integrated structure and comprises a rim, a supporting seat arranged in the center of the rim and a circle of spokes formed between the rim and the supporting seat, a center hole coaxially penetrates through the supporting seat, disc brake seats are formed on the two axial sides of the supporting seat, and the two disc brake seats are symmetrically arranged; the disc brake base is composed of a shaft sleeve formed in the position of the center hole and three positioning pipes distributed around the central axis of the center hole in an isosceles triangle mode, the shaft sleeve and the center hole are coaxially arranged, and the axes of the positioning pipes and the axis of the center hole are parallel. The two ends, away from each other, of the two shaft sleeves are annular steps used for press fitting of bearings. And an internal thread is arranged in the positioning pipe. The front brake hub of the electric vehicle can be matched with a small-size brake disc.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle technology, and relates to a wheel hub, particularly a front brake wheel hub for electric vehicles. Background Technology

[0002] The front brake hub of an electric vehicle is an important component of the front wheel, as it supports the front wheel and carries the braking system.

[0003] An existing front brake hub structure, such as the electric vehicle dual counter-braking front wheel disclosed in the Chinese Patent Database (application number: 202420278749.1), includes a hub, a first disc and a second disc. The first disc and the second disc are symmetrically distributed on both sides of the hub. The first disc is connected to the hub by a plurality of first supports distributed along the circumference of the hub, and the second disc is connected to the hub by a plurality of second supports distributed along the circumference of the hub. A first brake pump assembly is provided on the inner side of the first disc, and a second brake pump assembly is provided on the inner side of the second disc. The first brake pump assembly and the second brake pump assembly are used to simultaneously act on the corresponding discs to brake during braking.

[0004] In the aforementioned front wheel, the first support for connecting the disc is located on the inner wall of the hub, which means that the front wheel can only be used with larger discs. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a front brake hub for electric vehicles suitable for small-sized brake discs.

[0006] The objective of this utility model can be achieved through the following technical solution: A front brake hub for an electric vehicle is an integral structure, comprising a rim, a support seat located at the center of the rim, and a ring of spokes formed between the rim and the support seat. A central hole is coaxially passed through the support seat. The feature is that disc brake seats are formed on both axial sides of the support seat, and the two disc brake seats are symmetrically arranged. The disc brake seat consists of a bushing formed at the central hole and three positioning tubes distributed in an isosceles triangle around the central axis of the central hole. The bushing and the central hole are coaxially arranged, and the axes of the positioning tubes and the central hole are parallel. The two ends of the bushings that are far apart are annular steps for press-fitting bearings. The positioning tubes are provided with internal threads.

[0007] During installation, brake discs are provided on both sides of the support base along the axial direction, and the brake discs are fixed to the positioning tube with screws.

[0008] The positioning tubes are distributed on the support base so that they are positioned close to the bushing, which allows the wheel hub to be adapted to small-sized brake discs to meet the needs of different types of electric vehicles.

[0009] Meanwhile, the three positioning tubes on the same side are arranged in an isosceles triangle around the central axis of the central hole, which can effectively strengthen the support and positioning strength of the brake disc, ensure that the brake disc is stably positioned, and improve the driving safety of electric vehicles.

[0010] In the aforementioned electric vehicle front brake hub, a connecting strip is formed between each positioning tube and its corresponding bushing. The connecting strip extends to the corresponding positioning tube and bushing on both sides, and one end of the connecting strip extends to the support base. The connecting strip connects the positioning tube and the bushing together to further strengthen the positioning tube and make the brake disc positioning more stable.

[0011] In the aforementioned electric vehicle front brake hub, the cross-section of the positioning tube is trapezoidal, and the outer diameter of the positioning tube gradually increases from the annular step towards the support seat, so as to provide more stable support for the positioning tube.

[0012] In the aforementioned electric vehicle front brake hub, the number of spokes is the same as the number of positioning tubes; one end of a portion of the spokes extends to simultaneously contact the outer walls of both bushings, while one end of another portion of the spokes extends to simultaneously contact the outer walls of the two coaxially arranged positioning tubes. This design enhances the overall strength of the disc brake mount.

[0013] In the aforementioned electric vehicle front brake hub, the spokes are roughly Y-shaped.

[0014] In the aforementioned electric vehicle front brake hub, this hub is a cast one-piece component.

[0015] Compared with existing technologies, the front brake hub of this electric vehicle has the following advantages:

[0016] 1. The positioning tubes are distributed on the support base so that they are close to the bushing. This allows the wheel hub to be adapted to small-sized brake discs to meet the needs of different types of electric vehicles.

[0017] 2. The three positioning tubes on the same side are arranged in an isosceles triangle around the central axis of the central hole, which can effectively strengthen the support and positioning strength of the brake disc, ensure that the brake disc is stably positioned, and improve the driving safety of electric vehicles. Attached Figure Description

[0018] Figure 1 This is a 3D schematic diagram of the front brake wheel hub.

[0019] Figure 2 This is a cross-sectional view of the front brake wheel hub.

[0020] In the diagram, 1 is the wheel rim; 2 is the support base; 3 is the wheel spokes; 4 is the disc brake mount; 4a is the bushing; 4b is the positioning tube; 4b1 is the annular step; and 4c is the connecting strip. Detailed Implementation

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] The front brake wheel hub of this electric vehicle is a one-piece structure, and in the actual product, the front brake wheel hub is a cast one-piece part.

[0023] Specifically,

[0024] like Figure 1 As shown, this front brake wheel hub includes a rim 1, a support seat 2 located at the center of the rim 1, and a ring of spokes 3 formed between the rim 1 and the support seat 2. The support seat 2 has a central hole that extends through it axially, and the central hole is coaxial with the rim 1.

[0025] in,

[0026] Disc brake seats 4 are formed on both axial sides of the support base 2, and the two disc brake seats 4 are symmetrically arranged. Figure 1 and Figure 2 As shown, the disc brake housing 4 consists of a bushing 4a formed in the center hole and three positioning tubes 4b arranged in an isosceles triangle around the central axis of the center hole. The bushing 4a and the center hole are coaxial; the positioning tubes 4b and the center hole are parallel in axis. The two ends of the bushings 4a that are far apart are both annular steps 4b1 for press-fitting bearings, and the annular steps 4b1 are composed of vertically arranged annular sidewalls and annular bottom walls; the positioning tubes 4b have internal threads.

[0027] During installation, brake discs are provided on both sides of the support base 2 along the axis, and the brake discs are fixed to the positioning tube 4b with screws.

[0028] Positioning tubes 4b are distributed on the support base 2 so that the positioning tubes 4b are set close to the bushing 4a, so that the wheel hub can be adapted to small-sized brake discs to meet the needs of different types of electric vehicles.

[0029] Meanwhile, the three positioning tubes 4b on the same side are arranged in an isosceles triangle around the central axis of the central hole, which can effectively strengthen the support and positioning strength of the brake disc, ensure that the brake disc is stably positioned, and improve the driving safety of electric vehicles.

[0030] To further explain, the cross-section of the positioning tube 4b is trapezoidal, and the outer diameter of the positioning tube 4b gradually increases from the annular step 4b1 towards the support seat 2, so as to provide more stable support for the positioning tube 4b. A connecting strip 4c is formed between each positioning tube 4b and the corresponding bushing 4a. The connecting strip 4c extends to the corresponding positioning tube 4b and bushing 4a on both sides, and one end of the connecting strip 4c extends to the support seat 2. The connecting strip 4c connects the positioning tube 4b and the bushing 4a together to further strengthen the positioning tube 4b and make the brake disc positioning more stable.

[0031] like Figure 1 As shown, the number of spokes 3 is the same as that of the positioning tubes 4b, meaning there are 6 spokes 3 in total. One end of a portion of the spokes 3 extends to contact the outer walls of both bushings 4a, while one end of another portion extends to contact the outer walls of both coaxially arranged positioning tubes 4b. This design enhances the overall strength of the disc brake mount 4.

[0032] In the actual product, the spokes 3 are roughly Y-shaped, and the forked ends of the spokes 3 extend to the inner wall of the rim 1.

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A front brake hub for an electric vehicle, comprising an integral structure including a rim (1), a support seat (2) disposed at the center of the rim (1), and a ring of spokes (3) formed between the rim (1) and the support seat (2), wherein the support seat (2) has a central hole coaxially extending through it, characterized in that, The support base (2) has disc brake seats (4) formed on both axial sides, and the two disc brake seats (4) are symmetrically arranged. The disc brake seat (4) consists of a bushing (4a) formed in the center hole and three positioning tubes (4b) distributed in an isosceles triangle around the central axis of the center hole. The bushing (4a) and the center hole are coaxially arranged, and the positioning tubes (4b) and the center hole are parallel to each other. The two ends of the bushings (4a) that are far apart are both annular steps (4b1) for press-fitting bearings. The positioning tubes (4b) are provided with internal threads. The number of spokes (3) is the same as that of the positioning tubes (4b). One end of a part of the spokes (3) extends to contact the outer wall of both bushings (4a) at the same time, and the other end of the spokes (3) extends to contact the outer wall of the two positioning tubes (4b) that are coaxially arranged at the same time. The spokes (3) are roughly Y-shaped. The hub is a cast integral part. The support base (2) has brake discs on both axial sides, and the brake discs are fixed to the positioning tubes (4b) by screws.

2. The electric vehicle front brake hub according to claim 1, characterized in that, A connecting strip (4c) is formed between each of the above-mentioned positioning tubes (4b) and the corresponding bushing (4a). The two sides of the connecting strip (4c) extend to the corresponding positioning tube (4b) and bushing (4a) respectively, and one end of the connecting strip (4c) extends to the support base (2).

3. The electric vehicle front brake hub according to claim 1 or 2, characterized in that, The cross-section of the positioning tube (4b) is trapezoidal, and the outer diameter of the positioning tube (4b) gradually increases from the annular step (4b1) toward the support seat (2).

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