Sealed brake for hub motor

Abstract

The utility model relates to the technical field of brakes, and particularly discloses a sealed brake for a hub motor, which comprises a groove disc, a movable plate, a rotor and a flange which are sequentially arranged in the axial direction, and the rotor is clamped between the movable plate and the flange; a butt joint piece is arranged close to one side of the rotor, the end face of one side of the butt joint piece is used for being connected with a mounting end, and one end of the butt joint piece is clamped into the middle of the rotor in a butt joint mode and rotates synchronously with the rotor; and the dustproof sleeve is sleeved outside the groove disc and the flange so as to wrap and shield gaps between the rotor and the flange and between the rotor and the movable plate. The utility model is more convenient to disassemble, assemble and maintain, and has good dustproof, moisture-proof and sealing properties.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brake, specifically relates to a sealed brake for in -wheel motor. BACKGROUND

[0002] The in -wheel motor is also called electric wheel, is the motor that integrates power, transmission and brake device in the wheel hub, also be called as wheel -in motor technology, and the automobile wheel usually installs the brake, such as disc brake, brake band brake and electromagnetic brake etc., some in -wheel motors of existing use the electromagnetic brake, and its dismounting maintenance is inconvenient, and the electromagnetic component is vulnerable to water, dust, salt fog corrosion, and long -term reliability is lower, therefore, design a kind of brake for in -wheel motor to solve the above technical problem. SUMMARY

[0003] The utility model discloses a sealed brake for in -wheel motor can be more convenient to dismounting maintenance, and have good dustproof and moistureproof sealing.

[0004] The utility model discloses a sealed brake for in -wheel motor, including the groove disc that sets gradually in the axial direction, dynamic board, rotor and flange, the rotor is clamped between the dynamic board with the flange, the side of immediate vicinity of the rotor is equipped with the butt joint piece, the butt joint piece's one side end surface is used to with the installation end meets, and the butt joint piece's one end butt joint is inserted into the rotor middle part and with synchronous rotation, dust cover, its cover is wrapped up the clearance between rotor and flange, dynamic board with the groove disc and the flange outside to shield.

[0005] Further, the middle part of the butt joint piece is provided with an insertion protrusion, and the middle part of the rotor is provided with a butt joint hole corresponding to the insertion protrusion.

[0006] Further, the butt joint hole is a polygonal hole structure.

[0007] Further, a sealing element is arranged between the insertion protrusion and the flange.

[0008] Further, the outer edge of the butt joint piece is uniformly provided with a plurality of mounting holes, and the plurality of mounting holes are arranged in a ring shape.

[0009] Further, an installation key groove is arranged in the inner hole of the groove disc, and the length direction of the installation key groove is parallel to the axis of the groove disc.

[0010] Further, the dust cover is made of rubber material.

[0011] Further, the two ends of the dust cover are flush with the end faces of the groove disc and the flange.

[0012] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0013] 1. The connection between the coupling part and the hub output shaft is simple and convenient, and the coupling part and the brake rotor are disassembled and assembled by shaft hole docking.

[0014] 2. A dustproof sleeve is wrapped between the tray and the flange to ensure a tight seal, thereby sealing the brake and effectively preventing dust and water from corroding the rotor and electromagnetic components and affecting the wheel hub braking performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the sealed hub motor brake of this utility model;

[0016] Figure 2 This is a schematic diagram of the right side of the sealed hub motor brake of this utility model;

[0017] Figure 3 for Figure 2 A schematic cross-sectional view along the AA direction;

[0018] Figure 4 This is a schematic diagram of the structure of the docking component and the rotor in this utility model.

[0019] Reference numerals: 1-slot, 11-mounting keyway, 2-moving plate, 3-rotor, 31-connection hole, 4-flange, 5-connection piece, 51-insertion protrusion, 52-mounting hole, 6-dust cover, 7-seal. Detailed Implementation

[0020] The following description, in conjunction with specific embodiments, provides further details. Figures 1-4 As shown, this embodiment is a sealed hub motor brake, including a grooved plate 1, a moving plate 2, a rotor 3, and a flange 4 arranged axially in sequence. The rotor 3 is sandwiched between the moving plate 2 and the flange 4. A docking piece 5 is provided on one side adjacent to the rotor 3. One end face of the docking piece 5 is used to connect with the mounting end, and one end of the docking piece 5 is engaged with and rotates synchronously with the middle of the rotor 3. A dust cover 6 is fitted over the grooved plate 1 and the flange 4 to cover and block the gap between the rotor 3 and the flange 4 and the moving plate 2. Specifically, it is used in conjunction with a hub motor and installed in a car wheel hub. The docking piece 5 of the brake is connected and fixed to the hub shaft, and the other end of the docking piece 5 can be directly inserted into the inner hole of the rotor 3. The connection is simple and convenient, allowing the rotor 3, the connecting piece, and the hub shaft to rotate synchronously. Dust and water that the hub is prone to come into contact with during driving are blocked by the dust cover 6, preventing corrosion of the rotor 3 and electromagnetic components by water and dust, which would adversely affect the braking performance, thus providing high sealing performance.

[0021] likeFigure 3 As shown, in this embodiment, the docking member 5 has a protrusion 51 in the middle, and the rotor 3 has a docking hole 31 in the middle that is adapted to the protrusion 51; specifically, the protrusion 51 and the docking hole 31 form a shaft hole docking structure, and the two form a circumferential limit to realize power transmission.

[0022] like Figure 4 As shown, in some embodiments, the mating hole 31 is a polygonal hole structure; specifically, such as a regular square or pentagonal hole structure, or other irregular hole, to restrict the insertion protrusion 51 from circumferentially rotating relative to the mating hole 31.

[0023] In addition, in order to improve the sealing between the protrusion 51 and the flange 4, a sealing element 7 is provided between the protrusion 51 and the flange 4. This sealing element 7 can be a skeleton oil seal.

[0024] Optionally, a number of mounting holes 52 are evenly provided on the outer edge of the mating part 5. The multiple mounting holes 52 are arranged in a ring. The mating part 5 is locked to the output shaft of the hub by screws through the mounting holes 52 to complete the installation.

[0025] like Figure 2 and Figure 3 As shown, in this embodiment, a mounting keyway 11 is provided in the inner hole of the slot 1, and the length direction of the mounting keyway 11 is parallel to the axis of the slot 1; specifically, one side of the slot 1 is usually a fixed end that remains stationary, and it is fixed to the mounting keyway 11 by a flat key.

[0026] To improve the fit between the dust cover 6 and the outer surfaces of the tray 1 and flange 4, the dust cover 6 is made of rubber material, which has a certain degree of elasticity and shrinkage, thus improving the sealing performance of the brake.

[0027] To improve the overall aesthetics of the brake and the coverage of the sealing range, the two ends of the dust cover 6 are flush with the end faces of the groove plate 1 and the flange 4, respectively.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealed brake for a hub motor, characterized in that: It includes a slotted plate (1), a moving plate (2), a rotor (3) and a flange (4) arranged axially in sequence, wherein the rotor (3) is sandwiched between the moving plate (2) and the flange (4); A docking member (5) is provided on one side adjacent to the rotor (3). One end face of the docking member (5) is used to connect with the mounting end, and one end of the docking member (5) is engaged and snapped into the middle of the rotor (3) and rotates synchronously with it. A dust cover (6) is fitted on the outside of the slot (1) and the flange (4) to cover and shield the gap between the rotor (3) and the flange (4) and the moving plate (2).

2. The sealed hub motor brake according to claim 1, characterized in that: The docking member (5) has a protrusion (51) in the middle, and the rotor (3) has a docking hole (31) in the middle that is adapted to and corresponds to the protrusion (51).

3. The sealed hub motor brake according to claim 2, characterized in that: The docking hole (31) has a polygonal hole structure.

4. The sealed hub motor brake according to claim 2, characterized in that: A sealing element (7) is provided between the insertion protrusion (51) and the flange (4).

5. The sealed hub motor brake according to claim 1, characterized in that: The outer edge of the docking member (5) is uniformly provided with a plurality of mounting holes (52), and the plurality of mounting holes (52) are arranged in a ring.

6. The sealed hub motor brake according to claim 1, characterized in that: The inner hole of the slot (1) is provided with a mounting keyway (11), and the length direction of the mounting keyway (11) is parallel to the axis of the slot (1).

7. The sealed hub motor brake according to claim 1, characterized in that: The dust cover (6) is made of rubber.

8. The sealed hub motor brake according to claim 7, characterized in that: The two ends of the dust cover (6) are flush with the end faces of the tray (1) and the flange (4), respectively.

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