CN218257564U

CN218257564U - Novel offset semi-floating structure of tricycle axle

Info

Publication number: CN218257564U
Application number: CN202222600948.3U
Authority: CN
Inventors: 纪祥; 潘佳伟
Original assignee: Jiangsu Jinguang Motor Technology Co ltd
Current assignee: Jiangsu Jinguang Motor Technology Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-10
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a novel skew formula of tricycle axle semi-floats structure, including braking hub, install the semi-axis on the braking hub, deep groove ball bearing is installed to the lateral wall of semi-axis, deep groove ball bearing is located the inside of braking hub and is close to its inner wall, the utility model discloses under the almost not increased prerequisite of cost, through the center that shifts deep groove ball bearing, change its bias to the wheel center, change 24mm by 68mm, promote bearing design life 25%, make deep groove ball bearing reduce the axial bending moment in the use, promote the life of bearing by a wide margin, the cantilever distance at the relative deep groove ball bearing center of semi-axis also reduces thereupon simultaneously, changes 76mm into by 96mm, promotes semi-axis bending strength 20%, makes semi-axis bending strength promote.

Description

Novel offset semi-floating structure of tricycle axle

Technical Field

The utility model relates to a tricycle rear drive axle technical field specifically is novel offset type of tricycle axle structure of partly floating.

Background

In the existing tricycle rear drive axle, a semi-floating structure (as shown in fig. 2), the distance b =68mm between the center of the bearing and the wheel center, so that the bearing needs larger axial and radial loads F = G (bridge load) x b/2 when in use, and the smaller the distance b, the smaller the load of the bearing; in addition, the half shaft bears the bending moment of the distance from the wheel center to the bearing center, the larger the cantilever b is, the larger the bending moment of the half shaft is, and the whole designed axle load of the drive axle with the same configuration is reduced.

Therefore, a novel offset semi-floating structure of the three-wheel axle is provided.

Disclosure of Invention

An object of the utility model is to provide a novel skew formula of tricycle axle is half floats the structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the novel offset type semi-floating structure of the tricycle axle comprises a brake hub, a half shaft is installed on the brake hub, a deep groove ball bearing is installed on the outer side wall of the half shaft, and the deep groove ball bearing is located in the brake hub and close to the inner wall of the brake hub.

Preferably: a bulge is arranged at the center of the outer side of the brake hub, and a taper hole is formed in the bulge.

Preferably: the taper hole extends towards the interior of the brake hub and penetrates through the inner wall of the brake hub.

Preferably: one end of the half shaft is provided with a cone part, and the cone part is matched with the taper hole.

Preferably, the following components: and a wheel rim is arranged on the outer side of the brake hub.

Preferably: the distance between the center of the deep groove ball bearing and the wheel center is 24mm.

Preferably: the distance between the center of the deep groove ball bearing and the front end of the half shaft is 76mm.

Preferably: and an axle housing is arranged on the outer side of the deep groove ball bearing.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses under the prerequisite that the cost does not increase almost, through the center that shifts deep groove ball bearing, change its biasing to the wheel center, change 24mm by 68mm, promote bearing design life 25%, make deep groove ball bearing reduce the axial bending moment in the use, promote the life of bearing by a wide margin.

2. Meanwhile, the cantilever distance of the half shaft relative to the center of the deep groove ball bearing is reduced, the distance is changed from 96mm to 76mm, and the bending strength of the half shaft is improved by 20%, so that the bending strength of the half shaft is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the prior art.

In the figure: 1. a brake hub; 2. a protrusion; 3. a taper hole; 4. a half shaft; 5. an axle housing; 6. a deep groove ball bearing; 7. a rim; 8. a cone part.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Examples

Referring to fig. 1, the present invention provides a technical solution: novel offset-type semi-floating structure of tricycle axle, including braking hub 1, install semi-axis 4 on the braking hub 1, deep groove ball bearing 6 is installed to the lateral wall of semi-axis 4, and deep groove ball bearing 6 is located the inside of braking hub 1 and is close to its inner wall.

As shown in fig. 1: a bulge 2 is arranged at the center of the outer side of the brake hub 1, and a taper hole 3 is formed in the bulge 2; through the arrangement, the bulge 2 protrudes outwards, so that the distance between the deep groove ball bearing 6 and the wheel center can be shortened, and the situation that the guide distance is limited due to blocking of the bulge 2 is avoided.

As shown in fig. 1: the taper hole 3 extends towards the interior of the brake hub 1 and penetrates through the inner wall of the brake hub 1; through the arrangement, the half shaft 4 can be more conveniently installed, so that the half shaft 4 can penetrate through the brake drum 1 and the bulge 2.

As shown in fig. 1: one end of the half shaft 4 is provided with a cone part 8, and the cone part 8 is matched with the taper hole 3; through the arrangement, the half shaft 4 can be conveniently installed and fixed.

As shown in fig. 1: a rim 7 is mounted on the outside of the brake hub 1.

As shown in fig. 1: the distance between the center of the deep groove ball bearing 6 and the wheel center is 24mm; through the arrangement, the offset from the center of the wheel is changed by transferring the center of the bearing, so that the axial bending moment of the deep groove ball bearing 6 is reduced in the using process.

As shown in fig. 1: the distance between the center of the deep groove ball bearing 6 and the front end of the half shaft 4 is 76mm; through the arrangement, the cantilever of the half shaft 4 relative to the center of the bearing is reduced, so that the bending strength of the half shaft 4 is improved.

As shown in fig. 1: and an axle housing 5 is mounted on the outer side of the deep groove ball bearing 6.

The working principle is as follows: the axle housing 5 and the deep groove ball bearing 6 are extended into the brake hub 4, so that the distance between the center of the deep groove ball bearing 6 and the center of a tire is closer, the axial bending moment of the bearing is proportionally and greatly reduced, and the design service life of the bearing is prolonged; meanwhile, the structure reduces the length of a cantilever from the front end of the half shaft 4 to the center of the deep groove ball bearing 6, improves the bending moment of the half shaft 4 in the same use environment, and prolongs the service fatigue life of the half shaft 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Novel offset-type semi-floating structure of tricycle axle, including braking hub (1), its characterized in that: install semi-axis (4) on braking hub (1), deep groove ball bearing (6) are installed to the lateral wall of semi-axis (4), deep groove ball bearing (6) are located the inside of braking hub (1) and are close to its inner wall.

2. The novel offset semi-floating structure of the three-wheel axle according to claim 1, characterized in that: the brake hub is characterized in that a bulge (2) is arranged at the center of the outer side of the brake hub (1), and a taper hole (3) is formed in the bulge (2).

3. The novel offset semi-floating structure of the three-wheel axle according to claim 2, characterized in that: the taper hole (3) extends towards the interior of the brake hub (1) and penetrates through the inner wall of the brake hub (1).

4. The novel offset type semi-floating structure of the three-wheel axle according to claim 3, characterized in that: one end of the half shaft (4) is provided with a cone part (8), and the cone part (8) is matched with the taper hole (3).

5. The novel offset semi-floating structure of the three-wheel axle according to claim 1, characterized in that: and a rim (7) is installed on the outer side of the brake hub (1).

6. The novel offset semi-floating structure of the three-wheel axle according to claim 1, characterized in that: the distance between the center of the deep groove ball bearing (6) and the wheel center is 24mm.

7. The novel offset semi-floating structure of the three-wheel axle according to claim 1, characterized in that: the distance between the center of the deep groove ball bearing (6) and the front end of the half shaft (4) is 76mm.

8. The novel offset semi-floating structure of the three-wheel axle according to claim 1, characterized in that: and an axle housing (5) is installed on the outer side of the deep groove ball bearing (6).