Novel electric three-wheel disc brake rear axle double-oil-seal structure

Abstract

The utility model discloses a novel electric three-wheel disc brake rear axle double-oil-seal structure which comprises a casting disc and a half shaft, and a cotter pin is arranged on one side of the casting disc. A flat key is arranged on the other side of the casting disc, a bearing outer spacer bush is arranged on one side of the flat key, and a rear axle oil seal and an oil seal are arranged on the bearing outer spacer bush. The electric three-wheel disc brake open type rear axle single oil seal has the advantages that on the basis of oil prevention of an original electric three-wheel disc brake open type rear axle single oil seal, the oil seal is additionally arranged in the bearing, the original oil seal outside is used as a dust seal, and the situation that the wheel edge of the rear axle leaks oil can be more efficiently prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tricycle brakes, in particular to a novel electric tricycle disc brake rear axle double oil seal structure. Background Art

[0002] The original three-wheel disc brake rear axle, when the original disc brake rear axle is matched with an open gearbox, the wheel side oil protection relies on only one oil seal, and the actual use effect is not good, and oil leakage cannot be avoided to the greatest extent. For this reason, a new electric three-wheel disc brake rear axle double oil seal structure is now proposed. Summary of the invention

[0003] The purpose of the utility model is to provide a novel electric three-wheel disc brake rear axle double oil seal structure, add oil seals on the basis of the original rear axle, optimize the rear axle structure, so as to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A new type of electric three-wheel disc brake rear axle double oil seal structure includes a casting disc and a half shaft, and a cotter pin is provided on one side of the casting disc;

[0006] A flat key is arranged on the other side of the casting plate, a bearing outer spacer is arranged on one side of the flat key, and a rear axle oil seal and an oil seal are arranged on the bearing outer spacer.

[0007] Furthermore, the cotter pin is provided with a spring washer.

[0008] Furthermore, the spring washer is provided with a slotted nut for fixing.

[0009] Furthermore, the rear axle oil seal is provided with a matching bearing.

[0010] Furthermore, the rear axle oil seal is provided with a matching retaining ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] Based on the original electric three-wheel disc brake open rear axle single oil seal oil protection, an oil seal is added inside the bearing, and the original external oil seal is used as a dust seal, which can more effectively prevent the occurrence of rear axle wheel side oil leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure numerals: 1- slotted nut, 2- spring washer, 3- split pin, 4- casting disk, 5- flat key, 6- outer spacer sleeve of bearing, 7- retaining ring, 8- bearing, 9- rear axle oil seal, 10- half shaft, 11- oil seal. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example

[0016] See also Figure 1 , the utility model provides a technical solution:

[0017] A new electric three-wheel disc brake rear axle double oil seal structure comprises a casting disc 4 and a half shaft 10, a cotter pin 3 is provided on one side of the casting disc 4; a flat key 5 is provided on the other side of the casting disc 4, a bearing outer spacer 6 is provided on one side of the flat key 5, a rear axle oil seal 9 and an oil seal 11 are provided on the bearing outer spacer 6, the cotter pin 3 is provided with a spring washer 2, the spring washer 2 is provided with a slotted nut 1 for fixing, the rear axle oil seal 9 is provided with a matching bearing 8, and the rear axle oil seal 9 is provided with a matching retaining ring 7.

[0018] Working principle:

[0019] An oil seal is added inside the bearing, and the original oil seal outside is used as a dust seal, which can more effectively prevent oil leakage from the rear axle wheel side.

[0020] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel electric three-wheel disc brake rear axle double oil seal structure, comprising a casting disc (4) and a half shaft (10), characterized in that: A cotter pin (3) is provided on one side of the casting plate (4); A flat key (5) is provided on the other side of the casting plate (4), a bearing outer spacer (6) is provided on one side of the flat key (5), and the bearing outer spacer (6) is provided with a rear axle oil seal (9) and an oil seal (11).

2. The novel electric three-wheel disc brake rear axle double oil seal structure according to claim 1 is characterized by: The cotter pin (3) is provided with a spring washer (2).

3. The novel electric three-wheel disc brake rear axle double oil seal structure according to claim 2 is characterized by: The spring washer (2) is provided with a slotted nut (1) for fixing.

4. The novel electric three-wheel disc brake rear axle double oil seal structure according to claim 1 is characterized by: The rear axle oil seal (9) is provided with a matching bearing (8).

5. The novel electric three-wheel disc brake rear axle double oil seal structure according to claim 1 is characterized by: The rear axle oil seal (9) is provided with a matching retaining ring (7).

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