Full-floating bearing device of vehicle

Abstract

The utility model discloses a vehicle full-floating bearing device which comprises an axle and a hub, an axle is arranged in the axle, the hub is provided with a rotary fixator, the rotary fixator is connected with the axle and the axle and used for connecting the hub to the axle, and the hub can rotate relative to the axle so that the axle can still drive the hub to rotate; the rotary fixer comprises fixed parts and a rotating part, the fixed parts are arranged at the two ends of the rotating part, and the rotating part can make the positions fixed by the fixed parts rotate relatively. The utility model has the beneficial effects that two connecting positions of the axle and the axle are provided for the wheel, so that the wheel can be continuously fixed on the axle when the axle is broken, has rotating capability and can continuously rotate for a short time along with the running of the automobile, so that the rollover of the automobile caused by the falling of the wheel is prevented, and the precious deceleration parking time is won for a driver.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of automobile accessories, and particularly relates to a full-floating bearing device for a vehicle. BACKGROUND

[0002] Automobile wheels are essential components of automobiles. In a conventional automobile assembly, the wheels are directly connected to the axle, and the axle responsible for transmission is directly connected to the tire to drive the tire to rotate. However, this connection mode has a large load on the axle, which increases the requirements for the material of the axle, increases the manufacturing cost, and when the axle is accidentally broken, the wheel is not supported due to the lack of connection with the automobile, so that the wheel falls off the car, causing the vehicle to lose balance and causing serious traffic accidents. CONTENT OF THE UTILITY MODEL

[0003] To solve the above problems, the present application provides a full-floating bearing device for a vehicle, which comprises an axle and a hub, the axle is arranged in the axle, the hub is provided with a rotating fixer, the rotating fixer is connected with the axle and the axle, and is used to connect the hub to the axle, and the hub is rotatable relative to the axle, so that the axle can still drive the hub to rotate.

[0004] The rotating fixer is arranged to fix the hub on the axle, so that the wheel is not only connected to the axle, but also transfers part of the load of the axle to the axle, reducing the load of the axle. When the axle is broken, the wheel still has a support position, the rotating fixer can fix the wheel on the axle, and has the ability to rotate, so that the wheel can continue to rotate with the car for a short time, preventing the wheel from falling off and causing the vehicle to roll over, and giving the driver valuable time to slow down and stop.

[0005] The rotating fixer comprises a fixed part and a rotating part, the fixed part is arranged at both ends of the rotating part, and the rotating part can rotate relative to the fixed part.

[0006] Further, the fixed part comprises a hub fixing end and an axle fixing end; the hub fixing end is fixed to the hub, and the hub fixes the tire; the axle fixing end is connected with the axle, so that the hub and the axle are connected.

[0007] Further, the rotating part comprises an outer rotating sleeve and an inner rotating sleeve, the outer rotating sleeve is sleeved on the inner rotating sleeve, and a gap is arranged between the outer rotating sleeve and the inner rotating sleeve, a ball groove is arranged in the gap, balls are arranged in the ball groove, and a retainer is arranged for the balls to rotate relative to the two rotating sleeves; the connection between the inner rotating sleeve, the outer rotating sleeve and the balls is similar to the principle of a bearing, so that the hub and the axle at both ends are fixed and rotatable.

[0008] Further, the support baffle is arranged between the inner rotating sleeve and the outer rotating sleeve at the position of the fixed end of the axle, and the support baffle is fixed to the outer rotating sleeve or the inner rotating sleeve, and the support baffle provides support force for the outer rotating sleeve and the inner rotating sleeve when the outer rotating sleeve and the inner rotating sleeve vibrate. Since one end of the inner rotating sleeve is directly connected to the axle shaft, the other end is connected to the wheel, and the outer rotating sleeve is connected to the axle, the vibration amplitude of the inner rotating sleeve is larger than that of the outer rotating sleeve during operation, so that the pressing force on the ball is increased, the ball load is increased, and the ball is worn out if the support baffle is not arranged, the retainer is damaged, and the service life of the rotary fixing device is reduced. Therefore, the support baffle provides a certain support force for the outer rotating sleeve and the inner rotating sleeve when they vibrate, prevents the ball from being subjected to excessive load, and improves the service life of the rotary fixing device. At the same time, the support baffle can also seal the gap containing the ball to prevent foreign matter from entering the gap and affecting the operation of the ball.

[0009] Further, the fixed part and the rotating part are connected in an integrated structure; one end of the outer rotating sleeve is integrally connected to the fixed end of the axle; one end of the inner rotating sleeve is integrally connected to the fixed end of the hub, and the other end is a free end.

[0010] Further, the fixed end of the axle includes a fixed seat, the fixed seat is provided with a threaded hole, the axle is provided with a fixed hole, a bolt passes through the fixed hole and the threaded hole to be connected, and the fixed seat is connected to the rotating part.

[0011] Further, the fixed end of the hub includes a connecting disc, the connecting disc is provided with a connecting hole for connecting with the tire.

[0012] Further, the length of the free end of the inner rotating sleeve does not exceed the fixed end of the axle, the inner rotating sleeve is connected to the axle shaft, and if the free end of the inner rotating sleeve is too long, the distance between the fixed end of the axle and the axle will be increased when connected, the bolt connection cannot be connected to the axle end and the axle, the stability of the hub fixed to the axle is affected, the axle end vibrates due to unstable connection when the automobile runs, the load of the bolt is increased, and the possibility of bolt falling is increased.

[0013] Further, the inner rotating sleeve is arranged outside the axle shaft and connected to the axle shaft, the axle shaft drives the inner rotating sleeve to rotate and further drives the hub to rotate.

[0014] Further, the other end of the outer rotating sleeve is provided with an extension member, the extension member surrounds the outer wall of the inner rotating sleeve, and the extension member and the hub connecting end are provided with a spacing; the extension member is arranged close to the hub connecting end, and can offset the lateral vibration of the wheel to a certain extent during driving, thereby increasing the stability of operation; the spacing between the extension member and the hub connecting end should not be too large, if the spacing is too large, the lateral vibration of the hub connecting end cannot be offset, and the extension member cannot be attached to the surface of the hub connecting end, the attachment to the surface of the hub connecting end will generate a large friction force, and aggravate the wear of the hub connecting end and the extension member, the extension member should be made of wear-resistant material and be used in cooperation with lubricating oil.

[0015] Further, the extension member and the fixed seat are provided with reinforcing ribs, and the threaded holes are arranged at the reinforcing ribs, so that the compression strength of the threaded holes is increased.

[0016] The beneficial effects of the utility model lie in that:

[0017] (1) the utility model provides two connecting positions of an axle and an axle bridge for a wheel, so that the wheel can continue to be fixed to the axle bridge when the axle is broken, and the wheel has rotation ability and can continue to rotate temporarily with the automobile, thereby preventing the wheel from falling off and causing the automobile to overturn, and precious deceleration parking time is obtained for the driver.

[0018] (2) the utility model shifts a part of the load originally acting on the axle to the axle bridge, thereby reducing the load of the axle, prolonging the service life of the axle, reducing the failure probability of the axle, and improving the safety.

[0019] (3) the utility model makes the wheel have higher stability during driving, and the extension member can offset a part of the lateral vibration of the wheel, so that the driving is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the utility model. The schematic embodiments and the description thereof are used to explain the application, and do not constitute improper limitation on the utility model.

[0021] Fig. 1 It is a whole structure schematic view of the embodiment of the utility model;

[0022] Fig. 2 It is a rotating part structure schematic view of the embodiment of the utility model;

[0023] Fig. 3 It is a cross section schematic view of the embodiment of the utility model;

[0024] In the drawings: 1-rotary fixer, 2-fixed part, 21-hub fixed end, 211-connection disc, 212-connection hole, 22-axle fixed end, 221-fixed seat, 222-threaded hole, 223-stiffener, 3-rotary part, 31-outer rotary sleeve, 32-inner rotary sleeve, 33-rolling ball, 34-extension piece, 35-supporting baffle. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0026] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be practiced in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0027] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium, or the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] As Figs. 1-3 shown in the drawings, a vehicle full-floating axle bearing device includes an axle and a wheel hub, the axle is inside the axle, the wheel hub is provided with a rotating fixer 1, the rotating fixer 1 is connected with the axle and the axle, and is used for connecting the wheel hub to the axle, and the wheel hub is rotatable relative to the axle, so that the axle can still drive the wheel hub to rotate.

[0031] The rotating fixer 1 is arranged to fix the wheel hub to the axle, so that the wheel is not only connected with the axle, and part of the load of the axle will be transferred to the axle, so as to reduce the load of the axle, when the axle is broken, the wheel still has a supporting position, the rotating fixer 1 can make the wheel continue to be fixed to the axle, and has a rotating ability, can continue to rotate with the automobile running for a short time, prevents the wheel from falling off to cause the vehicle to overturn, and saves valuable deceleration parking time for the driver.

[0032] The rotating fixer 1 includes a fixed part 2 and a rotating part 3, the fixed part 2 is arranged at both ends of the rotating part 3, and the rotating part 3 can make the fixed part 2 fixed to be relatively rotatable.

[0033] In one embodiment, the fixed part 2 includes a wheel hub fixing end 21 and an axle fixing end 22; the wheel hub fixing end 21 is fixed to the wheel hub, and the wheel hub fixes the tire; the axle fixing end 22 is connected with the axle, so that the wheel hub and the axle are connected.

[0034] In one embodiment, the rotating part 3 includes an outer rotating sleeve 31 and an inner rotating sleeve 32, the outer rotating sleeve 31 is sleeved with the inner rotating sleeve 32, and a gap is arranged between the outer rotating sleeve 31 and the inner rotating sleeve 32, a ball groove 33 is arranged in the gap, and balls 33 are arranged in the ball groove 33, which are used for relative rotation of the two rotating sleeves; the connection between the inner rotating sleeve 32, the outer rotating sleeve 31 and the balls 33 is similar to the bearing principle, so that the wheel hub and the axle at both ends are fixed and rotatable.

[0035] In one embodiment, a support baffle 35 is arranged between the inner rotating sleeve 32 and the outer rotating sleeve 31 at the position of the axle fixed end 22, and is fixed to the outer rotating sleeve 31 or the inner rotating sleeve 32. The support baffle 35 provides support to the outer rotating sleeve 31 and the inner rotating sleeve 32 when they vibrate. Since the inner rotating sleeve 32 is directly connected to the axle at one end and to the wheel at the other end, and the outer rotating sleeve 31 is connected to the axle, the vibration amplitude of the inner rotating sleeve 32 is larger than that of the outer rotating sleeve 31 during operation, which increases the pressure on the ball bearings 33 and increases the load on the ball bearings 33. If the support baffle 35 is not arranged, the ball bearings 33 will be worn out and the cage will be damaged, and the service life of the rotating fixture 1 will be reduced. Therefore, the support baffle 35 provides support to the outer rotating sleeve 31 and the inner rotating sleeve 32 when they vibrate, prevents the load on the ball bearings 33 from being too large, and improves the service life of the rotating fixture 1. At the same time, the support baffle 35 closes the gap containing the ball bearings 33, preventing foreign matter from entering the gap and affecting the operation of the ball bearings 33.

[0036] In one embodiment, the fixed part and the rotating part are connected in an integrated structure. One end of the outer rotating sleeve 31 is integrally connected to the axle fixed end 22. One end of the inner rotating sleeve 32 is integrally connected to the hub fixed end 21, and the other end is a free end.

[0037] In one embodiment, the axle fixed end 22 includes a fixed seat 221, which is provided with a threaded hole 222. The axle is provided with a fixed hole, and a bolt passes through the fixed hole and the threaded hole 222 to connect them. The fixed seat 221 is connected to the rotating part.

[0038] In one embodiment, the hub fixed end 21 includes a connecting disc 211, which is provided with a connecting hole 212 for connecting to the tire.

[0039] In one embodiment, the free end of the inner rotating sleeve 32 does not exceed the axle fixed end 22. The inner rotating sleeve 32 is connected to the axle. If the free end of the inner rotating sleeve 32 is too long, it will increase the distance between the axle fixed end 22 and the axle during connection, making it impossible to connect the axle connection end to the axle, affecting the stability of the hub fixed to the axle. When the vehicle is running, the axle connection end will vibrate due to unstable connection, increasing the load on the bolt and increasing the possibility of the bolt falling off.

[0040] In one embodiment, the inner rotating sleeve 32 is arranged on the outer side of the axle and is connected to the axle. The axle drives the inner rotating sleeve 32 to rotate and in turn drives the hub to rotate.

[0041] In one specific embodiment, the other end of the outer rotating sleeve 31 is provided with an extension piece 34, which is wrapped around the outer wall of the inner rotating sleeve 32, and the extension piece 34 and the wheel hub connecting end are provided with a spacing; the extension piece 34 is arranged close to the wheel hub connecting end, which can offset the lateral vibration of the wheel to a certain extent during driving, and increase the stability of operation; the spacing between the extension piece 34 and the wheel hub connecting end should not be too large, otherwise the lateral vibration of the wheel hub connecting end cannot be offset, and the extension piece 34 cannot be attached to the surface of the wheel hub connecting end. Attaching to the surface of the wheel hub connecting end will generate a large friction force, which will aggravate the wear of the wheel hub connecting end and the extension piece 34. The extension piece 34 should be made of wear-resistant material and used with lubricating oil.

[0042] In one specific embodiment, the extension piece 34 and the fixed seat 221 are provided with a reinforcing rib 223, and the threaded hole 222 is arranged at the reinforcing rib 223 to increase the compression strength at the threaded hole 222.

[0043] In use, the axle is connected with the inner rotating sleeve 32, the axle connecting end is connected with the axle, and the wheel hub connecting end is connected with the wheel hub. The bolt is used for fixing. During driving, if the axle is broken, the wheel can still be fixed on the axle through the rotating fixer 1, which prevents the tire from falling off and causing the vehicle to overturn, and improves the driving safety.

[0044] The parts not described in the utility model can be realized by using or referring to the existing technology.

[0045] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other. Each embodiment mainly describes the differences from other embodiments.

[0046] The above is only an embodiment of the utility model, and is not used to limit the utility model. The utility model can be changed and varied in various ways for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the scope of the claims of the utility model.

Claims

1. A full floating axle bearing arrangement for a vehicle comprising an axle and a wheel hub, said axle having a wheel shaft therein, characterised in that, The hub is provided with a rotation fixer, which is connected with the axle and the hub, and is used to connect the hub with the axle, and the hub can rotate relative to the axle, so that the axle can still drive the hub to rotate; The rotation fixer comprises a fixed part and a rotating part, the fixed part is arranged at both ends of the rotating part, and the rotating part can make the fixed part fixed relative to rotate; The fixed part comprises a hub fixed end and an axle fixed end; the hub fixed end is fixed to the hub; and the axle fixed end is connected with the axle; The rotating part comprises an outer rotating sleeve and an inner rotating sleeve, the outer rotating sleeve is sleeved on the inner rotating sleeve, a gap is arranged between the outer rotating sleeve and the inner rotating sleeve, a ball groove is arranged in the gap, and balls are arranged in the ball groove, which are used to make the two rotating sleeves rotate relative to each other.

2. A full floating axle bearing assembly for a vehicle as defined in claim 1, wherein, One end of the outer rotating sleeve is integrally connected with the axle fixed end; one end of the inner rotating sleeve is integrally connected with the hub fixed end, and the other end is a free end.

3. The full floating axle bearing assembly of claim 1, wherein, A support baffle is arranged between the inner rotating sleeve and the outer rotating sleeve, which provides support force for the outer rotating sleeve and the inner rotating sleeve when they vibrate.

4. The full floating axle bearing assembly of claim 1, wherein, The hub fixed end comprises a connecting disc, and a connecting hole is arranged on the connecting disc, which is used to connect with a tire.

5. The full floating axle bearing assembly of claim 2, wherein, The axle fixed end comprises a fixed seat, the fixed seat is provided with a threaded hole, the axle is provided with a fixed hole, a bolt passes through the fixed hole and the threaded hole to be connected, and the fixed seat is connected with the rotating part.

6. A full floating axle bearing assembly for a vehicle as defined in claim 2, wherein, The length of the free end of the inner rotating sleeve does not exceed the axle fixed end.

7. A full floating axle bearing assembly for a vehicle as defined in claim 5 wherein, The other end of the outer rotating sleeve is provided with an extension piece, the extension piece surrounds the outer wall of the inner rotating sleeve, and the extension piece and the hub connecting end are provided with a spacing.

8. A full floating axle bearing assembly for a vehicle as defined in claim 7, wherein, The extension piece and the fixed seat are provided with reinforcing ribs, and the threaded hole is arranged at the reinforcing ribs to increase the compression strength of the threaded hole.

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