CN201800458U - Duplex drive axle with ultra-short wheel track - Google Patents

Abstract

The utility model discloses an ultra-short wheelbase double drive axle, which comprises a main reducer, a brake, a half shaft, a wheel hub brake drum, and an axle housing; the main reducer is connected with the axle housing through bolts, and the brake is connected with the axle through bolts. Shell connection, hub brake drum The brake drum is connected to the rear wheel hub through wheel bolts, and the rear hub is connected with bolts through the half shaft. It is characterized in that the distance between the center of the air chamber of the final reducer and the rear axle is set at 354mm, and the middle axle is set at 702mm. It greatly shortens the wheelbase of ordinary double-drive axles, reduces the weight and cost of the whole vehicle, is applicable to the layout of small frame vehicles, and enhances the flexibility of vehicle layout, while the speed and carrying capacity of the whole vehicle remain unchanged .

Description

Ultra-short wheelbase double drive axle

technical field

The utility model relates to the field of automobiles, in particular to an ultra-short wheelbase double-connected double-drive axle suitable for single-stage reduction axles of heavy-duty traction vehicles.

Background technique

At present, tractors with small frames have become more and more popular among users due to their advantages of low energy consumption, flexible use, and convenient parking. Under the premise that the small axle can fully bear the working load and stress of the small frame tractor, the use of a large drive axle reduces the flexibility of the vehicle, and the speed of the vehicle is affected and the energy consumption increases.

Contents of the invention

Aiming at the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide an ultra-short wheelbase double drive axle with a simple structure and low cost, which is suitable for a tractor with a small frame.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: an ultra-short wheelbase double drive axle, which includes a main reducer, a brake, a half shaft, a hub brake drum, and an axle housing; the main reducer passes through The bolts are connected to the axle housing, the brake is connected to the axle housing through bolts, the hub brake drum is connected to the rear wheel hub through wheel bolts, and the rear hub is connected to the axle shaft with bolts. It is characterized in that: the center of the final reducer air chamber The distance from the rear axle is set to 354mm, and the middle axle is set to 702mm.

The utility model has the advantages of the ultra-short wheelbase double-connected double-drive axle: it greatly shortens the wheelbase of the ordinary double-drive axle, reduces the weight and cost of the whole vehicle, is applicable to the arrangement of small frame cars, and enhances the overall appearance of the car. The flexibility of vehicle layout, while the vehicle speed and carrying capacity remain unchanged. It breaks the monotony of double-axle track and provides a small-frame drive double-axle. Compared with the traditional double-axle, its self-weight and cost are lower and the transmission torque and bearing capacity are unchanged; the input and output of the middle axle are abrupt Both the end face tooth flange and the input flange of the rear axle are used to ensure the stability of the transmission; this utility model adds another choice for the user, who can choose a more suitable model according to their own road conditions and working conditions, increasing the Flexibility in OEM selection.

Description of drawings

Fig. 1 is the structural representation of the utility model ultra-short wheelbase double-connected double drive axle;

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail;

As shown in Figure 1, it is a structural schematic diagram of the ultra-short wheelbase double drive axle of the present invention, an ultrashort wheelbase double drive axle, which includes a main reducer 1, a brake 2, a half shaft 3, a hub brake Drum 4, axle housing 5; final reducer 1 is connected to axle housing 5 through bolts 6, brake 2 is connected to axle housing 5 through bolts 7, hub brake drum brake drum 4 is connected to rear hub 9 through wheel bolts 8, rear The wheel hub 9 is connected by bolts through the half shaft 3, the center of the air chamber of the final reducer 1 is set at 354mm from the rear axle, and the middle axle is set at 702mm.

Improvement process: The cross-section of the axle housing 5 adopts a reinforced 168×168×16 (height×width×thickness) section, the thickness of the leaf spring support is reduced, and the internal ribs are strengthened to achieve the original bearing strength. The upper thrust rod bracket and the lower thrust The rod support is designed through CAE strength analysis. Compared with the previous ordinary support, the weight of a bridge is about 15Kg lighter and the strength is stronger.

Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above-mentioned examples. Those of ordinary skill in the art can make changes, modifications, additions or replacements within the essential scope of the present utility model. All should belong to the protection scope of the present utility model.

Claims (1)

1. ultrashort wheelspan double drive axle, it comprises main reduction gear, drg, semiaxis, wheel hub brake wheel, axle housing; Main reduction gear is connected with axle housing by bolt, drg is connected with axle housing by bolt, wheel hub brake wheel brake wheel is connected with rear-wheel hub by wheel bolt, rear-wheel hub is by the semiaxis bolt together, it is characterized in that: described main reduction gear air chamber width between centers back axle is provided with 354mm, and jackshaft is provided with 702mm.

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