Wheel hub motor locking gasket

Abstract

The utility model discloses a wheel hub motor locking gasket which comprises a gasket body, a mounting hole and a rotation stopping position are arranged on the gasket body, the mounting hole and the gasket body are coaxially arranged, and the rotation stopping position is arranged on the edge of the gasket body. The hub motor is simple in structure and convenient to use, and the shaft of the hub motor is locked and matched with the front fork or the rear fork of the frame through the locking gasket, so that the universality of the hub motor is improved. And the waist round holes or the rotation stopping holes are designed, so that the hub motor can be fixed conveniently. Rotation stopping protrusions or rotation stopping grooves are designed to be matched with the front fork and the rear fork of the frame to achieve rotation stopping of the motor. And the device can be mounted close to or away from the motor, so that the device is adaptive to different frame fork widths.

Description

Technical Field

[0001] This utility model relates to the field of motors, and in particular to a locking gasket for a hub motor. Background Technology

[0002] Hub motors are the most commonly used power devices for transportation in daily life. They are widely used in electric vehicles, electric cars, and electric-assist bicycles. Existing hub motors rely on a flat shaft to be installed on the vehicle and a nut to lock the hub motor. Due to the differences in the size and specifications of products from different manufacturers, and the different front or rear forks used to install hub motors, the compatibility of hub motors is not high, the locking effect is poor, and hub motors with different fork widths are often not interchangeable. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the main purpose of this utility model is to overcome the shortcomings of the prior art and disclose a hub motor locking gasket, including a gasket body, wherein the gasket body is provided with a mounting hole and an anti-rotation position, the mounting hole is coaxially arranged with the gasket body, and the anti-rotation position is arranged at the edge of the gasket body.

[0004] Furthermore, the gasket body is circular or oval.

[0005] Furthermore, the mounting hole is circular, oval, or square.

[0006] Furthermore, the gasket body is provided with an axial anti-rotation hole, which is used to connect and fix it to the shaft of the hub motor.

[0007] Furthermore, the anti-rotation position is an anti-rotation protrusion or an anti-rotation groove.

[0008] Furthermore, the anti-rotation protrusion is arc-shaped, semi-circular, or square.

[0009] Furthermore, the hub motor locking shim can be installed close to or away from the hub motor.

[0010] The beneficial effects achieved by this utility model are as follows:

[0011] 1) This utility model has a simple structure and is easy to use. It achieves a locking fit between the hub motor shaft and the front or rear fork of the frame by using a locking washer, thereby improving the compatibility of the hub motor.

[0012] 2) By designing oval holes or anti-rotation holes, it is easy to fix the hub motor.

[0013] 3) By designing anti-rotation protrusions or anti-rotation grooves, the motor can be stopped from rotating by cooperating with the front and rear forks of the frame.

[0014] 4) It can be installed close to or far from the motor to adapt to different frame fork widths. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a first embodiment of a hub motor locking gasket according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a second embodiment of a hub motor locking gasket according to the present invention;

[0017] Figure 3 This is a schematic diagram of the third embodiment of a hub motor locking gasket according to the present invention;

[0018] The attached figures are labeled as follows:

[0019] 1. Gasket body, 2. Mounting hole, 3. Anti-rotation position, 4. Anti-rotation groove, 5. Flat shaft, 6. Hub motor, 7. Rear insert, 8. U-shaped groove, 9. Gasket. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0021] Example 1

[0022] Please see Figure 1

[0023] A hub motor locking shim includes: a shim body 1, a mounting hole 2 and an anti-rotation position 3 disposed on the body, wherein the mounting hole 2 is coaxially disposed at the axial center of the shim body 1, and the anti-rotation position 3 is fixed on the shim and arranged close to the edge of the shim body 1. Specifically:

[0024] The gasket body 1 is circular, and the thickness of the gasket can be adjusted according to the requirements, usually between 1-5mm. The mounting hole 2 is an oblong hole, the axis of which is the same as the axis of the gasket body 1, and the oblong hole runs through the entire gasket body 1.

[0025] The hub motor 6 has a flat shaft 5, which can pass through the oval hole, so that the motor shaft and the washer fit well and fix the motor.

[0026] The gasket is also provided with an anti-rotation position 3, which is an anti-rotation protrusion. The anti-rotation protrusion is arranged along the edge of the gasket body 1. In this embodiment, the width of the anti-rotation protrusion is the same as the width of the motor flat shaft 5. The anti-rotation protrusion can be inserted into the rear-inserted U-shaped groove 8 and fit tightly with the U-shaped groove 8 to achieve anti-rotation of the gasket.

[0027] In particular, in this embodiment, the anti-rotation protrusion is an irregularly shaped structure. The outer arc of the anti-rotation protrusion is the same as the edge of the gasket, the inner arc of the anti-rotation protrusion is the same as the arc of the flat shaft 5 of the motor, and the width of the anti-rotation protrusion is the same as that of the flat shaft 5.

[0028] Of course, the aforementioned anti-rotation protrusion can also be arc-shaped, semi-circular, or square. For example, an anti-rotation pin of appropriate size can be directly driven into the pad, and the size of the anti-rotation pin only needs to be able to fit into the U-shaped groove 8 of the rear fork 7.

[0029] Specifically, in this embodiment, the gasket is installed as follows: the gasket body 1 is arranged close to the motor, and the anti-rotation protrusion is arranged away from the motor.

[0030] Of course, the anti-rotation protrusion can also be replaced by the anti-rotation groove 4, as long as the installation and fitting requirements are met to achieve anti-rotation.

[0031] In addition, in this embodiment, the width of the anti-rotation protrusion or anti-rotation groove 4 is equal to the width of the mounting hole 2. Of course, the width can also be designed to be different from the width of the mounting hole 2 to meet different installation requirements.

[0032] Example 2

[0033] Please see Figure 2

[0034] Compared to Embodiment 1, Embodiment 2 differs in that the hole in the gasket body 1 is a round hole and the gasket body 1 is provided with an anti-rotation groove 4, specifically including:

[0035] The gasket body 1 is circular, and the thickness of the gasket can be adjusted according to the requirements, usually between 1-5mm. The mounting hole 2 is a circular hole, and the axis of the circular hole is the same as the axis of the gasket body 1. The circular hole runs through the entire gasket body 1.

[0036] The shaft of the hub motor 6 passes through the circular hole, ensuring a good fit between the motor shaft and the washer. The shaft of the hub motor 6 is fixedly connected to the mounting hole by a key to prevent relative rotation between the shaft and the washer body 1. Alternatively, an anti-rotation hole can be axially provided on the washer body 1, corresponding to a protrusion or threaded hole on the hub motor shaft, and the washer body 1 can be fixed to the shaft using a pin or locking bolt to prevent rotation. Preferably, the hub motor shaft is a stepped shaft.

[0037] In particular, in this embodiment, the mounting hole 2 can also be a square hole or other irregularly shaped hole. The motor shaft can be fixed by cooperating with the irregularly shaped shaft of the motor through the irregularly shaped hole. In this way, the anti-rotation hole can be eliminated.

[0038] The gasket is also provided with an anti-rotation position 3, which is an anti-rotation groove 4. The anti-rotation groove 4 is arranged close to the edge of the gasket body 1. In this embodiment, the anti-rotation groove 4 can be tightly fitted with the protrusion in the rear-inserted U-shaped groove 8 to achieve anti-rotation of the gasket. The anti-rotation groove 4 can be an arc shape, a semi-circle, or a square recessed on the edge of the gasket body 1.

[0039] Specifically, in this embodiment, the gasket is installed as follows: the gasket body 1 is arranged close to the motor, and the anti-rotation protrusion is arranged away from the motor.

[0040] Example 3

[0041] Compared to the first and second embodiments, the third embodiment is a special construction of the gasket, that is, the gasket itself is an anti-rotation structure, specifically:

[0042] The gasket body 1 is oval in shape, and the thickness of the gasket can be adjusted according to the requirements, usually between 1-5mm. The gasket body 1 is provided with a mounting hole 2, which is an oval hole with the same axis as the axis of the gasket body 1. The oval hole runs through the entire gasket body 1.

[0043] The hub motor 6 has a flat shaft 5, which can pass through the oval hole, so that the motor shaft and the washer fit well and fix the motor.

[0044] The shim body 1 can be inserted into the U-shaped groove 8 of the rear fork 7. The motor is stopped from rotating by the cooperation between the shim body 1 and the U-shaped groove 8. In this embodiment, the shim only serves as a transition fit. At the same time, in order to adapt to different fork widths, a pad 9 wider than the shim body 1 can be provided at one end of the shim body 1. The shim is positioned by the pad 9 to adjust the axial position of the shim body 1 on the motor hub shaft.

[0045] The beneficial effects achieved by the present invention are:

[0046] 1) By designing oval holes or anti-rotation holes, it is easy to fix the motor.

[0047] 2) By designing anti-rotation protrusions or anti-rotation grooves, the motor can be stopped from rotating by cooperating with the front and rear forks of the frame.

[0048] 3) It can be installed close to or far from the motor to adapt to different frame fork widths.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any modifications or equivalent substitutions to the present utility model without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present utility model.

Claims

1. A hub motor locking gasket, characterized in that, The device includes a gasket body, on which mounting holes and anti-rotation positions are provided. The mounting holes are coaxially arranged with the gasket body, and the anti-rotation positions are located at the edge of the gasket body.

2. A hub motor locking washer according to claim 1, characterized in that, The gasket body is circular or oval.

3. A hub motor locking washer according to claim 1, characterized in that, The mounting hole is circular, oval, or square.

4. A hub motor locking washer according to claim 1, characterized in that, The gasket body is provided with an axial anti-rotation hole, which is used to connect and fix it to the shaft of the hub motor.

5. A hub motor locking washer according to claim 1, characterized in that, The anti-rotation position is an anti-rotation protrusion or an anti-rotation groove.

6. A hub motor locking washer according to claim 5, characterized in that, The anti-rotation protrusion is arc-shaped, semi-circular, or square.

7. A hub motor locking washer according to claim 1, characterized in that, The hub motor locking shim can be installed close to or away from the hub motor.

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