Double-wheel driving mechanism self-adaptive to road surface

Abstract

The utility model discloses a road surface self-adaptive double-wheel driving mechanism which comprises an axle, a wheel rotating shaft, a brake system assembly, a hub connecting piece and side-by-side wheels, the side-by-side wheels are connected to the two sides of the hub connecting piece respectively, the wheel rotating shaft is arranged in the axle, a cylindrical wheel end flange is coaxially arranged outside the wheel rotating shaft, and the brake system assembly is arranged on the hub connecting piece. A bearing is sleeved on the outer wall of the cylinder of the wheel end flange, the wheel end flange is connected with a hub bearing mounting seat into a whole through the bearing, and the hub bearing mounting seat is rotatably connected with the axle through a wheel end rotating shaft; the wheel rotating shaft comprises a rotating shaft body and a front-end transmission shaft, and the rotating shaft body and the front-end transmission shaft are connected through a spherical hinge mechanism. The front end transmission shaft is fixedly connected with the wheel end flange; and the wheel end flange is fixedly connected with the hub connecting piece through the connecting part. The wheel set can swing at a certain angle relative to the axle, so that severe working conditions such as stress of a single wheel are effectively avoided, the loss of the wheel is reduced, and the service life of the wheel is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, especially a double-wheel driving mechanism self-adapting to road surface. BACKGROUND

[0002] Since the truck needs to bear a considerable weight, the rear wheels are often designed to be composed of two tires in parallel, which can increase the bearing capacity. Moreover, the design can provide better stability when the truck is running, reduce the wear rate of the tires, and enhance the driving safety.

[0003] However, in the existing structure, the two parallel wheels are connected to the same cylindrical hub connecting piece, the hub connecting piece is provided with hub flanges at both ends, the two wheels are connected to the hub flanges at both ends, and then the hub connecting piece is fixedly connected to the axle through bolts. The disadvantage of this structure is that when the road surface is uneven or has pits, one side of the tire may be stressed, the other side of the tire may be raised, and the single-tire stress condition may occur, which increases the wear of the wheels and reduces the service life of the wheels. SUMMARY

[0004] In view of the above problems, the utility model provides a double-wheel driving mechanism self-adapting to road surface to solve the problem of wheel wear and reduced service life of the wheels caused by single-wheel stress and other harsh working conditions in the prior art.

[0005] A double-wheel driving mechanism self-adapting to road surface comprises an axle, a wheel shaft, a brake system assembly, a hub connecting piece, and parallel wheels, the parallel wheels are connected to both sides of the hub connecting piece, the wheel shaft is arranged in the axle, and characterized in that a cylindrical wheel end flange is coaxially arranged outside the wheel shaft, a bearing is sleeved on the outer wall of the cylindrical wheel end flange, the wheel end flange is connected to the hub bearing mounting seat through the bearing, and the hub bearing mounting seat is rotatably connected to the axle through a wheel end shaft.

[0006] The wheel shaft comprises a shaft body and a front end transmission shaft, the shaft body and the front end transmission shaft are connected through a ball hinge mechanism, the front end transmission shaft is fixedly connected to the wheel end flange, and the wheel end flange is fixedly connected to the hub connecting piece through a connecting part.

[0007] Preferably, the connecting part is a connecting plate.

[0008] Preferably, an oscillation limiting baffle is arranged between the hub bearing mounting seat and the axle to limit the oscillation angle of the wheel.

[0009] Preferably, the cylindrical wheel end flange is spaced apart and sleeved outside the wheel shaft. That is, the wheel end flange and the wheel shaft have a gap in the axial direction.

[0010] When the vehicle is advancing, the wheel shaft rotates to drive the wheel end flange to rotate around the wheel shaft axis, the wheel end flange rotates relative to the axle under the action of the bearing, the wheel end flange rotation drives the hub connecting piece to rotate synchronously, thereby driving the side-by-side wheels to rotate, realizing the vehicle advancing.

[0011] Since the side-by-side wheels, the hub connecting piece, the wheel end flange, the front end transmission shaft, the bearing and the hub bearing mounting seat are connected to form a whole, the hub connecting piece is connected with the front end transmission shaft through the wheel end flange, and the front end transmission shaft and the shaft body are connected through the spherical hinge mechanism; when the road surface is uneven or has pits, the whole structure swings (small angle rotation) around the wheel end shaft, realizes the side-by-side wheels swinging around the wheel end shaft, and keeps the shaft body and the axle stable.

[0012] The utility model discloses the beneficial effects are:

[0013] The utility model discloses the same as traditional axle can realize the basis of power drive and braking, and the wheel set can also swing a certain angle relative to the axle, thereby effectively avoiding single wheel stress and other harsh working conditions, reducing the loss of wheel, prolonging the service life of wheel.

[0014] Compared with the traditional axle, the utility model has the advantages of:

[0015] 1, increase the rotation swing mechanism between the axle and the hub flange, thereby realizing the swing between the wheel and the axle;

[0016] 2, the hub bearing mounting seat and the axle between swing limit baffle, thereby limiting the swing angle of wheel;

[0017] 3, compared with the transmission shaft of traditional axle, the spherical hinge mechanism is added in the middle, avoids losing power when the wheel set rotates.

[0018] 4, the brake system assembly can be the drum brake of traditional axle, also can be disc brake. DRAWINGS

[0019] Figure 1 It is the schematic diagram of double-wheel driving mechanism for self-adapting road surface.

[0020] Figure 2 It is the schematic diagram of omitting wheel.

[0021] Figure 3 It is Figure 2 It is the enlarged schematic diagram of omitting hub connecting piece in the middle.

[0022] Figure 4 It is the sectional schematic diagram of omitting wheel of the utility model.

[0023] Figure 5 It is Figure 4Figure 3 is a schematic view of the hub connector omitted from figure 2.

[0024] 1, axle housing; 2, brake system assembly; 3, hub connector; 31, connecting plate; 4, wheel end shaft; 5, hub bearing mounting; 6, bearing; 7, wheel end flange; 8, two side-by-side wheels; 9, wheel shaft; 10, axle; 91, shaft body; 92, front end transmission shaft; DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be described below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments; and the structures shown in the drawings are only schematic, rather than actual. It should be noted that all other embodiments obtained by those skilled in the art based on these embodiments in the present application belong to the scope of protection of the present application.

[0026] It should be noted that the term "comprising" or any other variant thereof in this document is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical or equivalent elements in the process, method, article or apparatus including the element.

[0027] The terms "upper", "lower", "inner", "outer" and the like do not constitute absolute spatial relationship limitations, but are only a concept of relative position, which can be understood by those skilled in the art.

[0028] Referring to Figures 1-5 A double-wheel driving mechanism for adaptive road surface, comprising an axle 10, a wheel shaft 9, a brake system assembly 2, a hub connector 3, and two side-by-side wheels 8, the brake system assembly 2 is fixedly installed on the axle 10, the wheel shaft 9 is arranged in the axle 10, the hub connector 3 is provided with hub flanges at both ends, and the two side-by-side wheels 8 are connected to the hub flanges, all of which are conventional structures and will not be described in detail here.

[0029] The end of the axle 10 is provided with an axle housing 1.

[0030] A cylindrical wheel end flange 7 is coaxially arranged outside the wheel shaft 9, and the cylindrical wheel end flange 7 is spacedly sleeved outside the wheel shaft 9. That is, there is a gap between the wheel end flange 7 and the wheel shaft 9 in the axial direction.

[0031] The bearing 6 is sleeved on the outer wall of the wheel end flange 7, the wheel end flange 7 is connected with a wheel hub bearing mounting seat 5 through the bearing 6, the wheel hub bearing mounting seat 5 is rotatably connected with the axle housing 1 of the axle through a wheel end rotating shaft 4, and the wheel end flange 7 can rotate around the center line of the wheel end flange 7 relative to the wheel hub bearing mounting seat under the action of the bearing 6.

[0032] The wheel rotating shaft 9 comprises a rotating shaft body 91 and a front end transmission shaft 92, and the rotating shaft body 91 and the front end transmission shaft 92 are connected through a spherical hinge mechanism 93; the end of the front end transmission shaft is in a T-shaped structure, the T-shaped structure of the front end transmission shaft 92 is fixedly connected with the wheel end flange 7; the wheel end flange 7 is fixedly connected with the wheel hub connecting piece 3 through the connecting plate 31.

[0033] The wheel hub bearing mounting seat and the axle are provided with a swing limiting baffle, so that the swing angle of the wheel is limited.

[0034] When the vehicle advances, the front end transmission shaft 92 of the wheel rotating shaft 9 rotates to drive the wheel end flange 7 to rotate around the wheel rotating shaft axis, the wheel end flange 7 rotates relative to the axle housing 1 and the wheel hub bearing mounting seat 5 under the action of the bearing 6, the wheel end flange 7 rotates to drive the wheel hub connecting piece 3 to rotate synchronously, so as to drive the side-by-side wheels 8 to rotate, and the vehicle advances.

[0035] Since the side-by-side wheels 8, the wheel hub connecting piece 3, the wheel end flange 7, the front end transmission shaft 92, the bearing 6 and the wheel hub bearing mounting seat 5 are connected to form an integral whole, the wheel hub connecting piece 3 is fixedly connected (such as bolted) with the front end transmission shaft 92 through the wheel end flange 7, and the front end transmission shaft 92 is connected with the rotating shaft body 91 through the spherical hinge mechanism 93; when the road surface is uneven or has a pit, the integral structure swings (rotates at a small angle) around the wheel end rotating shaft 4, the side-by-side wheels swing around the wheel end rotating shaft 4, and the rotating shaft body and the axle are kept stable, so that the single wheel is effectively prevented from being subjected to a force in a harsh working condition, the wear of the wheel is reduced, and the service life of the wheel is prolonged. Especially for heavy load transport vehicles, great improvement is achieved.

[0036] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only the principles of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A dual wheel drive mechanism for self adaptive road comprising of an axle, a wheel shaft, a brake assembly, a hub connector, side by side wheels, the side by side wheels are connected to both sides of the hub connector, the wheel shaft is provided in the axle, characterized in that, A cylindrical wheel end flange is coaxially arranged outside the wheel rotating shaft, a bearing is sleeved on the outer wall of the cylindrical wheel end flange, the wheel end flange is connected with a wheel hub bearing mounting seat through the bearing, and the wheel hub bearing mounting seat is rotatably connected with the axle through a wheel end rotating shaft; The wheel rotating shaft comprises a rotating shaft body and a front end transmission shaft, and the rotating shaft body and the front end transmission shaft are connected through a spherical hinge mechanism; the front end transmission shaft is fixedly connected with the wheel end flange; and the wheel end flange is fixedly connected with the wheel hub connecting piece through a connecting component.

2. The dual wheel drive mechanism of claim 1, wherein, The connecting component is a connecting plate.

3. The dual wheel drive mechanism of claim 1, wherein, Swing limiting baffle plates are arranged between the wheel hub bearing mounting seat and the axle, so as to limit the swing angle of the wheel.

4. The dual wheel drive mechanism of claim 1, wherein, The cylindrical wheel end flange is sleeved outside the wheel rotating shaft with a spacing.

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