Novel drive axle of tricycle

Abstract

The utility model discloses a novel drive axle of a tricycle, which comprises an axle housing assembly and a half shaft, the axle housing assembly comprises an axle tube flange, a steel tube, an axle housing middle section and a main reduction gearbox connecting flange; the main reduction gearbox connecting flange is pressed with one end of the steel pipe through the axle housing middle section; a bridge pipe flange is arranged at the other end of the steel pipe; a bearing seat is arranged between the axle tube flange and the half shaft, and the bearing seat is detachably connected with the axle tube flange; the axle tube flange penetrates through the bearing seat and is inserted into the steel tube; a detachable rear cover is arranged at the bottom end of the main reduction gearbox connecting flange.

Description

Technical Field

[0001] The utility model relates to the technical field of tricycles, in particular to a new type of drive axle for tricycles. Background Art

[0002] In response to the customer's requirement of compatible with the installation of the same specification front-wheel drive gearbox on the rear integral axle, this axle is developed. The characteristics of this axle are as follows: First, the external bearing seat can reduce the offset between the bearing and the wheel center, and correspondingly reduce the lateral force of the bearing to improve the service life of the bearing. Compared with the traditional bearing installed at both ends of the axle housing, the bearing of this axle can continue to extend towards the customer's wheel center, greatly reducing the offset distance of the bearing; Second, the sufficient space of the external bearing seat can arrange the outer oil seal, improving the dust and waterproof performance of the bearing; Third, the customized floating main reduction gearbox flange can be compatible with the installation of the front-wheel drive gearbox, solving the customer's problem. Compared with the split semi-axle housing using the flange method on both sides, the overall structure of this axle has better rigidity, and the strength also meets that of the traditional rigid integral axle.

[0003] Therefore, a new type of drive axle for tricycles is proposed. Summary of the Invention

[0004] The purpose of the utility model is to provide a new type of drive axle for tricycles to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A new type of drive axle for tricycles, including an axle housing assembly and a half axle. The axle housing assembly includes a bridge pipe flange, a steel pipe, a middle section of the axle housing, and a main reduction gearbox connection flange;

[0007] The main reduction gearbox connection flange is press-fitted with one end of the steel pipe through the middle section of the axle housing;

[0008] The other end of the steel pipe is provided with a bridge pipe flange;

[0009] A bearing seat is arranged between the bridge pipe flange and the half axle, and the bearing seat is detachably connected to the bridge pipe flange;

[0010] The bridge pipe flange passes through the bearing seat and the bridge pipe flange is inserted into the steel pipe;

[0011] The bottom end of the main reduction gearbox connection flange is provided with a detachable rear cover.

[0012] Further, the surface of the axle housing assembly is provided with a screw seat.

[0013] Further, the surface of the axle housing assembly is provided with a steel plate seat.

[0014] Further, the surface of the axle housing assembly is provided with a lifting seat.

[0015] Further, a pipeline support is provided on the surface of the axle housing assembly.

[0016] Further, a matching outer oil seal is provided on the bearing seat.

[0017] Further, a bearing is provided on one side of the outer oil seal, a corresponding bearing spacer is provided on the bearing, a shaft retaining ring is provided on one side of the bearing spacer, and an inner oil seal is provided on one side of the shaft retaining ring.

[0018] Further, the bearing seat is connected to the axle tube flange by bolts, corresponding nuts are provided on the bolts, and spring washers are provided on one side of the nuts.

[0019] Further, flange bolts are provided on the connecting flange of the main reduction gearbox.

[0020] Further, the rear cover is connected to the connecting flange of the main reduction gearbox by flange bolts II.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] The externally mounted bearing seat can reduce the offset between the bearing and the wheel center, correspondingly reduce the lateral force on the bearing, and improve the service life of the bearing. Compared with the traditional bearing installed at both ends of the axle housing, the bearing of this axle can continue to extend towards the customer's wheel center, greatly reducing the offset distance of the bearing;

[0023] The externally mounted bearing seat has sufficient space to arrange the outer oil seal, improving the dust and water protection performance of the bearing;

[0024] Third, the customized floating main reduction gearbox flange can be compatible with the installation of the front-wheel drive gearbox, solving the customer's problem. Compared with the split half-axle housing using the two-side flange method, the overall structure of this axle has better rigidity and the strength also meets that of the traditional rigid integral axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an exploded structural schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0027] Embodiment 1:

[0028] Please refer to Figure 1 , the present utility model provides a technical solution:

[0029] A new type of drive axle for a tricycle, comprising an axle housing assembly 1 and a half shaft 2. The axle housing assembly 1 includes an axle tube flange 1.1, a steel pipe 1.2, an axle housing middle section 1.7 and a main reduction gearbox connecting flange 1.8;

[0030] To achieve quick assembly, the connecting flange 1.8 of the main reduction gearbox is press-fitted through the middle section 1.7 of the axle housing to one end of the steel pipe 1.2 to achieve connection. At the same time, a bridge pipe flange 1.1 is provided at the other end of the steel pipe 1.2, and a bearing seat 3 is installed between the bridge pipe flange 1.1 and the half axle 2. The bearing seat 3 is detachably connected to the bridge pipe flange 1.1. This external-mounted bearing seat 3 can reduce the offset between the bearing and the wheel center, correspondingly reduce the lateral force on the bearing, so as to improve the service life of the bearing, enabling the bearing of this axle to continue to extend towards the customer's wheel center direction, greatly reducing the bearing offset distance. The bridge pipe flange 1.1 passes through the bearing seat 3 and the bridge pipe flange 1.1 is inserted into the interior of the steel pipe 1.2, and a detachable rear cover 14 is provided at the bottom end of the connecting flange 1.8 of the main reduction gearbox.

[0031] As Figure 1 shown:

[0032] To facilitate disassembly, screw seats 1.3 are provided on the surface of the axle housing assembly 1.

[0033] As Figure 1 shown:

[0034] To facilitate use, steel plate seats 1.4 are provided on the surface of the axle housing assembly 1.

[0035] As Figure 1 shown:

[0036] To facilitate hoisting, lifting seats 1.5 are provided on the surface of the axle housing assembly 1.

[0037] As Figure 1 shown:

[0038] To facilitate use, pipeline brackets 1.6 are provided on the surface of the axle housing assembly 1.

[0039] As Figure 1 shown:

[0040] A matching external oil seal 4 is provided on the bearing seat 3. There is enough space to arrange the external oil seal 4, improving the dust and water protection performance of the bearing. An bearing 5 is arranged on one side of the external oil seal 4. At the same time, a corresponding bearing spacer sleeve 6 is provided on the bearing 5, and a shaft retaining ring 7 is provided on one side of the bearing spacer sleeve 6, such that an internal oil seal 8 is provided on one side of the shaft retaining ring 7. The design of the internal and external oil seals can improve the sealing performance.

[0041] As Figure 1 shown:

[0042] Connect the bearing housing 3 and the bridge pipe flange 1.1 with bolts 9. At the same time, corresponding nuts 10 are provided for the bolts 9 so that the two can be disassembled and assembled. At the same time, a spring washer 11 is provided on one side of the nut 10. In order to connect the main reduction gearbox to the outside, flange bolts 13 are provided on the main reduction gearbox connecting flange 1.8. In order to achieve the overall installation, connect the rear cover 14 to the main reduction gearbox connecting flange 1.8 with flange bolts two 15.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. New type drive axle for tricycle, including axle housing assembly (1) and half shaft (2), characterized in that: The bridge housing assembly (1) includes a bridge pipe flange (1.1), a steel pipe (1.2), a middle section of the bridge housing (1.7), and a main reduction gearbox connection flange (1.8); The main reduction gearbox connection flange (1.8) is press-fitted to one end of the steel pipe (1.2) through the middle section of the bridge housing (1.7); The other end of the steel pipe (1.2) is provided with a bridge pipe flange (1.1); A bearing seat (3) is provided between the bridge pipe flange (1.1) and the half shaft (2), and the bearing seat (3) is detachably connected to the bridge pipe flange (1.1); The bridge pipe flange (1.1) passes through the bearing seat (3), and the bridge pipe flange (1.1) is inserted into the interior of the steel pipe (1.2); The bottom end of the main reduction gearbox connection flange (1.8) is provided with a detachable rear cover (14).

2. The new type drive axle of a tricycle according to claim 1, characterized in that: The surface of the bridge housing assembly (1) is provided with a screw seat (1.3).

3. The new type drive axle of a tricycle according to claim 1, characterized in that: The surface of the bridge housing assembly (1) is provided with a steel plate seat (1.4).

4. The new type of drive axle for a tricycle according to claim 1, characterized in that: The surface of the bridge housing assembly (1) is provided with a lifting seat (1.5).

5. The new type drive axle of a tricycle according to claim 1, wherein: The surface of the bridge housing assembly (1) is provided with a pipeline support (1.6).

6. The new type drive axle of the tricycle according to claim 1, characterized in that: The bearing seat (3) is provided with a matching outer oil seal (4).

7. The new type of drive axle for a tricycle according to claim 6, characterized in that: One side of the outer oil seal (4) is provided with a bearing (5), the bearing (5) is provided with a corresponding bearing spacer sleeve (6), one side of the bearing spacer sleeve (6) is provided with a shaft retaining ring (7), and one side of the shaft retaining ring (7) is provided with an inner oil seal (8).

8. The new type drive axle of a tricycle according to claim 1, characterized in that: The bearing seat (3) and the bridge pipe flange (1.1) are connected by bolts (9), the bolts (9) are provided with corresponding nuts (10), and one side of the nuts (10) is provided with spring washers (11).

9. The new type drive axle of a tricycle according to claim 1, characterized in that: The main reduction gearbox connection flange (1.8) is provided with flange bolts (13).

10. The new type of drive axle for a tricycle according to claim 1, characterized in that: The rear cover (14) is connected to the main reduction gearbox connection flange (1.8) by flange bolts two (15).

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