CN210191006U

CN210191006U - Hub disc assembly

Info

Publication number: CN210191006U
Application number: CN201920839284.1U
Authority: CN
Inventors: Xu Liu; 刘旭; Xing Wang; 王星
Original assignee: Yangzhou Dongsheng Automobile Parts Ltd By Share Ltd
Current assignee: Yangzhou Dongsheng Automobile Parts Ltd By Share Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-03-27
Anticipated expiration: 2029-06-04

Abstract

The utility model belongs to the vehicle equipment field, in particular to modular wheel hub assembly convenient to later maintenance. The wheel hub assembly comprises a wheel hub assembly shell connected with a rotating shaft, the wheel hub assembly comprises a wheel hub assembly shell, first connecting holes are uniformly distributed on the end surface of the wheel hub assembly shell, the wheel hub assembly also comprises a brake disc assembly covered on the wheel hub assembly shell, the brake disc assembly comprises a brake disc body, a through hole is formed in the middle of the brake disc body, the brake disc body on one side of the through hole extends outwards to form a cover body, an annular connecting part is formed on the end surface of the cover body, second connecting holes are uniformly distributed on the annular connecting part, the end surface of the annular connecting part is attached to the end surface of the wheel hub assembly shell, the wheel hub assembly also comprises a flange disc body connected with a wheel, third connecting holes are uniformly distributed on the inner disc body, the end surface of the inner disc body is attached to the outer end surface of the annular connecting part, and a locking screw passes through the first connecting, and the maintenance is convenient.

Description

Hub disc assembly

Technical Field

The utility model belongs to the vehicle equipment field, in particular to modular wheel hub assembly convenient to later maintenance.

Background

The front axle hub unit using two single-row roller bearing structures in the domestic market is more, commercial vehicles almost all adopt the structure, and passenger vehicles also have a plurality of vehicle types and adopt the structure. The service life of the hub unit with the structure is about 4 kilometers generally, the bearing is also required to be dismounted when the brake is replaced after the brake is worn, the old bearing is not used, and the service life of the hub unit with the structure is short. Meanwhile, the requirement of the clearance adjustment is higher when the structure is produced and assembled, and if a repairman does not master the clearance dimension during maintenance, the bearing is easy to ablate and fail. The maintenance and the replacement are frequently carried out, the use cost of the whole vehicle is higher, and the use of a user is also influenced.

With the development of science and technology, foreign automobile bearings have been developed from single-row roller bearings to one, two, three, and even four generations, and the new four generations are double-row roller bearings with oil seals and lubricating grease, i.e. maintenance-free bearing units. The structure of the first generation is a double-row roller bearing, or a bearing and a hub are assembled together for use, the bearing outer ring of the second generation, third generation and fourth generation hub units is integrated with the hub to form a bearing unit, because the hub and the bearing outer ring of the hub unit are made of bearing steel, the cost is very high, the wheel bolt reference circle is larger for slightly large vehicles, the cost is too high, meanwhile, the structure of the second generation, third generation and fourth generation hub units only achieves 10 thousands of sets of volume production, and a matched manufacturer agrees to die sinking production, so the second generation, third generation and fourth generation hub units only are suitable for large-batch passenger vehicles though the bearing outer ring is combined with a front hub and even a steering knuckle.

Disclosure of Invention

Not enough to prior art, the utility model relates to a hub disc assembly convenient to maintain, modularization.

The technical scheme of the utility model as follows:

wheel hub dish assembly, it includes the wheel hub assembly who is connected with the pivot, its characterized in that: the wheel hub assembly comprises a wheel hub assembly shell, an installation cavity is formed in the wheel hub assembly shell, a step portion is formed in the middle of the installation cavity, supporting bearings are fixed in the installation cavities on two sides of the step portion, first connecting holes are uniformly formed in the end face of the wheel hub assembly shell, the wheel hub assembly further comprises a brake disc assembly covering the wheel hub assembly shell, the brake disc assembly comprises a brake disc body, a through hole is formed in the middle of the brake disc body, a cover body is formed by extending the brake disc body on one side of the through hole outwards, an annular connecting portion is formed in the end face of the cover body, second connecting holes are uniformly formed in the annular connecting portion, the end face of the annular connecting portion is attached to the end face of the wheel hub assembly shell, the wheel hub assembly further comprises a flange disc body connected with a wheel, the flange disc body comprises an outer disc body and an inner disc body which are integrally formed, the end face of the outer disc body is higher than the end, third connecting holes are uniformly distributed in the inner disc body, the end face of the inner disc body is attached to the outer end face of the annular connecting portion, the first connecting holes, the second connecting holes and the third connecting holes are in one-to-one correspondence, and the locking screws penetrate through the first connecting holes, the second connecting holes and the third connecting holes to be connected and fixed.

The supporting bearing is a tapered roller bearing.

The one end of two support bearing global is seted up the caulking groove of the L type of inversion, and the sealing ring embedding of U type is in the caulking groove of L type.

And a sealing ring is arranged between the supporting bearing and the inner wall of the mounting cavity.

The connecting screw rod comprises a rod body, an end cap is arranged at one end of the rod body, a plurality of protruding peripheral stupefied portions are axially arranged on the surface of the rod body close to the end cap, threaded connecting portions are arranged on the rod body located on the front side of the stupefied portions, and groove portions matched with the stupefied portions are arranged in through holes of the outer disk body.

And a sealing cover part is formed on the inner disc body and used for sealing the end part of the hub assembly shell.

To sum up, the utility model discloses following beneficial effect has:

1. the utility model discloses a realized wheel hub assembly, brake disc assembly and with the modularized design of wheel connection's flange disk body, and install wheel hub assembly, brake disc assembly and flange disk body in proper order, it is more convenient to install, and in follow-up maintenance process, carry the ring flange in proper order with the brake disc assembly dismantle can, convenient maintenance and change.

2. The utility model discloses a all be equipped with seal part between the support bearing and between the wall of support bearing and installation cavity, guaranteed the leakproofness between the support bearing, inside avoiding outside dust to get into the support bearing, prolonged support bearing's life.

3. The utility model discloses a connecting rod realizes the fixed of circumference through protruding stupefied and concave part, is a connected mode that can dismantle fast, makes things convenient for the change of later stage to connecting screw rod.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

in the drawings, 1 is a hub assembly, 10 is a hub assembly shell, 11 is a mounting cavity, 12 is a step part, 13 is a support bearing, 130 is a caulking groove, 131 is a U-shaped sealing ring, 14 is a first connecting hole, 15 is a sealing ring,

2, 20, 21, 22, 23, 24, 3, 30, 31, 32, 320, 321, 322, 323, 324, 34, 4, a brake disc assembly, a brake disc body, a through hole, 22, a cover body, an annular connecting part, a second connecting hole, a flange disc body, an outer disc body, an inner disc body, a connecting screw rod, a rod body, a flange, a ridge part, a threaded connecting part, a groove part, a third connecting hole and a locking screw.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the hub disk assembly includes a hub assembly 1 connected to a rotating shaft, and is characterized in that: the wheel hub assembly comprises a wheel hub assembly shell 10, a mounting cavity 11 is formed inside the wheel hub assembly shell 10, a step portion 12 is formed in the middle of the mounting cavity 11, a supporting bearing 13 is fixed in the mounting cavity positioned on two sides of the step portion 12, first connecting holes 14 are uniformly distributed on the end face of the wheel hub assembly shell 10, the wheel hub assembly further comprises a brake disc assembly 2 covering the wheel hub assembly shell, the brake disc assembly comprises a brake disc body 20, a through hole 21 is formed in the middle of the brake disc body 20, the brake disc body on one side of the through hole extends outwards to form a cover body 22, an annular connecting portion 23 is formed on the end face of the cover body 22, second connecting holes 24 are uniformly distributed on the annular connecting portion 23, the end face of the annular connecting portion 23 is attached to the end face of the wheel hub assembly shell 10, the wheel hub assembly further comprises a flange disc body 3 connected with a wheel, and the flange disc body 3, the terminal surface of outer disk body 30 is higher than the terminal surface of interior disk body 31, be equipped with the connecting screw 32 that a plurality of and wheel connection on the outer disk body 30, the equipartition is equipped with third connecting hole 34 on the interior disk body 31, and the terminal surface of interior disk body 31 and the outer terminal surface laminating of annular connecting portion 23, and first connecting hole, second connecting hole and third connecting hole one-to-one, and locking screw 4 passes first connecting hole, second connecting hole and third connecting hole and is connected fixedly.

The utility model designs a modularized hub disk assembly, which is provided with a hub assembly connected with a rotating shaft from right to left in sequence in the direction of the figure, the hub assembly is connected with the rotating shaft, the rotation of the hub disk assembly relative to the rotating shaft is realized through a supporting bearing, then a brake disc assembly is sleeved on the hub assembly, the end surface of the annular connecting part of the brake disc is attached to the end surface of the hub assembly shell, finally the flange disc body is mounted, the end surface of the inner disc body of the flange disc body is attached to the outer end surface of the annular connecting part, finally the connection of the three parts is realized through a locking screw, the modularized design is adopted, the processing and the production are convenient, the production efficiency is improved, the production cost is reduced, furthermore, the three parts are not in interference fit connection relation, and the installation sequence makes things convenient for the dismantlement in later stage, and convenient maintenance has reduced the maintenance cost in later stage.

The support bearing 13 is a tapered roller bearing, and the tapered roller bearing is mainly used for bearing radial and axial combined loads mainly based on radial loads. Compared with an angular contact ball bearing, the bearing capacity is high, and the limit rotating speed is low. The tapered roller bearing can bear axial load in one direction and can limit axial displacement of the shaft or the shell in one direction.

The caulking groove 130 of the L type of invering is seted up to the global one end of two support bearing 13, and the sealing ring 131 embedding of U type is in the caulking groove of L type, and the sealing ring embedding cooperation of the U type of setting is installed in the caulking groove of L type, realizes two sealed in support bearing clearance, improves the leakproofness between the two, avoids inside dust or the metal fillings gets into support bearing, guarantees equipment moving stationarity and longer life.

And a sealing ring 15 is arranged between the supporting bearing 13 and the inner wall of the mounting cavity, the sealing performance at two ends of the supporting bearing is further ensured by the arranged sealing ring, and dust and foreign matters are reduced from entering the supporting bearing.

The connecting screw 32 includes a rod body 320, an end cap 321 is disposed at one end of the rod body 320, a plurality of circumferential ridge portions 322 protruding from the surface of the rod body close to the end cap 321 are axially disposed, a threaded connection portion 323 is disposed on the rod body located at the front side of the ridge portions 322, and a groove portion 324 matched with the ridge portions is disposed in the through hole of the outer tray body 30.

The inner disc body 31 is formed with a sealing cover portion 310, which is used for sealing the end of the hub assembly housing, i.e. the sealing cover portion forms a seal at one end of the hub assembly and is also used for placing external dust or metal chips into the support bearing, and meanwhile, a consumer cannot directly observe the inner structure, and the attractiveness of the whole outer side surface is also improved.

To sum up, the utility model discloses following beneficial effect has:

Claims

1. Wheel hub dish assembly, it includes the wheel hub assembly who is connected with the pivot, its characterized in that: the wheel hub assembly comprises a wheel hub assembly shell, an installation cavity is formed in the wheel hub assembly shell, a step portion is formed in the middle of the installation cavity, supporting bearings are fixed in the installation cavities on two sides of the step portion, first connecting holes are uniformly formed in the end face of the wheel hub assembly shell, the wheel hub assembly further comprises a brake disc assembly covering the wheel hub assembly shell, the brake disc assembly comprises a brake disc body, a through hole is formed in the middle of the brake disc body, a cover body is formed by extending the brake disc body on one side of the through hole outwards, an annular connecting portion is formed in the end face of the cover body, second connecting holes are uniformly formed in the annular connecting portion, the end face of the annular connecting portion is attached to the end face of the wheel hub assembly shell, the wheel hub assembly further comprises a flange disc body connected with a wheel, the flange disc body comprises an outer disc body and an inner disc body which are integrally formed, the end face of the outer disc body is higher than the end, third connecting holes are uniformly distributed in the inner disc body, the end face of the inner disc body is attached to the outer end face of the annular connecting portion, the first connecting holes, the second connecting holes and the third connecting holes are in one-to-one correspondence, and the locking screws penetrate through the first connecting holes, the second connecting holes and the third connecting holes to be connected and fixed.

2. The hubcap assembly of claim 1 wherein: the supporting bearing is a tapered roller bearing.

3. A hubcap assembly as defined in any one of claims 1 or 2 wherein: the one end of two support bearing global is seted up the caulking groove of the L type of inversion, and the sealing ring embedding of U type is in the caulking groove of L type.

4. The hubcap assembly of claim 3 wherein: and a sealing ring is arranged between the supporting bearing and the inner wall of the mounting cavity.

5. The hubcap assembly of claim 1 wherein: the connecting screw rod comprises a rod body, an end cap is arranged at one end of the rod body, a plurality of protruding peripheral stupefied portions are axially arranged on the surface of the rod body close to the end cap, threaded connecting portions are arranged on the rod body located on the front side of the stupefied portions, and groove portions matched with the stupefied portions are arranged in through holes of the outer disk body.

6. The hubcap assembly of claim 1 wherein: and a sealing cover part is formed on the inner disc body and used for sealing the end part of the hub assembly shell.