CN213441901U - Hub disc assembly adopting spline connection - Google Patents
Hub disc assembly adopting spline connection Download PDFInfo
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- CN213441901U CN213441901U CN202021550749.0U CN202021550749U CN213441901U CN 213441901 U CN213441901 U CN 213441901U CN 202021550749 U CN202021550749 U CN 202021550749U CN 213441901 U CN213441901 U CN 213441901U
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- wheel hub
- hub
- brake disc
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Abstract
A wheel hub assembly adopting spline connection relates to a wheel edge assembly, which comprises a wheel hub and a brake disc, wherein a wheel hub outer bearing and a wheel hub inner bearing are respectively arranged in a wheel hub inner hole, a connecting flange I for connecting a tire is arranged on the outer circle of the wheel hub, and the outer circle of one end part of the wheel hub 1 is connected with the inner hole of one end part of the brake disc through a spline; a connecting flange II is further arranged at one end, connected with the brake disc, of the outer circle of the wheel hub, a connecting flange III is arranged at one end, connected with the wheel hub, of the outer circle of the brake disc, and the connecting flange II and the connecting flange III are fixedly connected together through a socket head cap screw; the hub is provided with a disassembling tool hole for conveniently disassembling the tool of the socket head cap screw at the position of the connecting flange I corresponding to the socket head cap screw. The utility model has the characteristics of structural connection reliability is high, the brake disc is small, light in weight, convenient operation, easily uses widely.
Description
Technical Field
The utility model relates to a wheel limit assembly, especially an adopt splined connection's wheel hub assembly.
Background
The conventional hub disc assembly 9 is shown in fig. 4, and includes a hub 901 with an external spigot and a brake disc 902 with an internal spigot, where the hub 901 with an external spigot and the brake disc 902 with an internal spigot are positioned in a spigot-fit manner and are connected and fixed by a connecting screw 903.
In an axle application, an axle brake adopting a hub-disc assembly is a disc brake, and the working principle diagram of the disc brake in the braking operation is shown in fig. 5: when the hub disc assembly rotates, after the brake air chamber 11 is inflated, the brake air chamber push rod pushes the disc brake 10 to brake the brake disc, and the rotating hub disc assembly is decelerated to stop due to the reverse braking torque; from the above brake operating conditions, it can be seen that: the brake disc is a stressed part, and the connection reliability of the brake disc is very critical to the braking safety. Because traditional wheel hub brake disc assembly adopts tang location and connecting screw connection mode, the braking moment that the brake disc bore is mainly born by connecting screw, consequently, traditional wheel hub disc assembly structure is higher to connecting screw mechanical strength requirement, and must guarantee that the tightening moment satisfies the requirement when connecting screw assembles, also need regularly to inspect screw tightening moment in the axle in-service use process, prevent that connecting screw from becoming flexible and leading to the atress to cut off, influence driving braking safety.
With the development of automobile chassis technology and the demand of improving the service braking safety, especially the development of axle technology, the traditional hub disk assembly structure is not more and more suitable for the market demand, and the existing market problems are increasingly obvious, and mainly have the following points: (1) because the traditional hub disc assembly adopts a spigot positioning and screw connecting structure mode, and the main stress part is a connecting screw, the safety of the structure is not high enough, and the requirement of people on the improvement of the driving braking safety can not be met; (2) the brake disc belongs to an axle safety protection part and is also a quick-wear part, after the axle is used for a certain distance, the brake disc needs to be replaced after being worn to the limit thickness, and the conventional brake disc has large volume and heavy weight and higher maintenance cost; (3) in the design and application of the axle, the distance from the wheel hub wheel rim mounting surface to the center of the brake disc is shortened, the front axle rotation resistance moment can be reduced, the steering is more flexible and light, the steering aligning property is better, the distance from the wheel hub wheel rim mounting surface to the center of the brake disc can not be effectively shortened due to the structural limitation of the traditional wheel hub disc assembly, the defect is obvious, and the requirement of the axle technical development can not be met.
Along with the requirements of customers on improving the braking safety of the whole vehicle running and the development of the axle technology, the hub disc assembly is required to have the characteristics of high structural reliability, low maintenance cost, flexible and light front axle steering and the like, which is necessary for the development of the axle technology, and the problems of the traditional hub disc assembly are urgently needed to be solved. The utility model discloses a utility model patent that grant publication number is CN209925472U discloses a novel connection structure of wheel hub and brake disc, this structure be equipped with the spline jogged joint of brake disc at the wheel hub middle part to it is fixed with brake disc and wheel hub locking through installing the nut on wheel hub screw footpath, this structure has following shortcoming: a nut volume ratio for fixing brake disc and wheel hub is bigger, and weight is heavier, and processing and assembly, dismantlement are all more troublesome, need special supplementary assembly and disassembly tools, and this nut and wheel hub screw thread footpath are used for a long time in addition and are slided the tooth easily after, and its security performance is still not high enough, still can't satisfy the requirement that people promoted service braking security.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the hub disk assembly has the advantages of high structural connection reliability, small size and light weight.
The technical scheme for solving the technical problems is as follows: a hub disc assembly connected by splines comprises a hub and a brake disc, wherein a hub outer bearing and a hub inner bearing are respectively arranged in a hub inner hole, a connecting flange I used for connecting a tire is arranged on the outer circle of the hub, and the outer circle of one end part of the hub is connected with the inner hole of one end part of the brake disc by splines; and the excircle of the wheel hub is also provided with a connecting flange II at one end connected with the brake disc, the excircle of the brake disc is provided with a connecting flange III at one end connected with the wheel hub, and the connecting flange II and the connecting flange III are fixedly connected together through a fastening connecting piece.
The utility model discloses a further technical scheme is: the fastening connecting piece is a socket head cap screw.
The utility model discloses a further technical scheme is again: the hub is provided with a disassembling tool hole for facilitating the passing of a tool for disassembling the socket head cap screw at the position of the connecting flange I corresponding to the socket head cap screw.
Due to the adoption of the structure, the utility model discloses an adopt splined connection's wheel hub dish assembly compares with prior art, has following beneficial effect:
1. the structure connection has high reliability
The utility model discloses a wheel hub, brake disc install wheel hub outer bearing, wheel hub inner bearing in the wheel hub hole respectively, be equipped with flange I that is used for connecting the tire on the wheel hub excircle, the one end tip hole of wheel hub one end tip excircle and brake disc pass through splined connection. During service braking, the spline can bear most braking reverse torque, so that the shearing torque borne by the socket head cap screws can be reduced, the risk of loosening of bolts is reduced, and the reliability of structural connection is greatly improved.
Additionally, the utility model discloses a wheel hub excircle still is equipped with flange II in the one end of connecting the brake disc, and the excircle of brake disc is equipped with flange III in connecting wheel hub's one end, connects fixedly together through fastening connection spare between this flange II, flange III. Because the utility model discloses a be connected wheel hub and brake disc through fastening connection spare and be fixed together, it is connected reliably, is difficult for smooth tooth, and the security performance is high, can satisfy the requirement that people promoted service braking security.
2. The brake disc has small volume and light weight
Because the utility model discloses a wheel hub one end tip excircle passes through splined connection with the one end tip hole of brake disc, adopts this splined connection mode after, the brake disc volume can be done littleer to effectively reduce the weight of brake disc, reduce customer later maintenance cost.
Additionally, because the utility model discloses a be connected wheel hub and brake disc through fastening connection spare and be fixed together, need not to use big nut to also can alleviate the weight of brake disc.
3. Convenient operation
The utility model connects and fixes the wheel hub and the brake disc through the fastening connecting piece, namely the inner hexagon screw, without adopting a big nut, thereby not needing to process and assemble the big nut with heavier weight and also not needing to disassemble and assemble a special large-scale disassembling and assembling tool. Moreover, the utility model discloses a wheel hub corresponds hexagon socket head cap screw position at flange I and is equipped with the extracting tool hole, and hexagon socket head cap screw is dismantled in this extracting tool hole of extracting tool accessible, and its operation is more convenient.
The technical features of the hub disk assembly using spline connection according to the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
FIG. 1: the structure of the hub disk assembly connected by the spline of the utility model is shown schematically,
FIG. 2: embodiment one the structural schematic view of the hub,
FIG. 3: example a schematic view of the structure of the brake disc,
FIG. 4: the structure of the hub disk assembly in the prior art is schematic,
FIG. 5: disc brake working principle diagram in the prior art;
in the above drawings, the reference numerals for the various parts are as follows:
1-a hub, wherein the hub is provided with a hub,
101-attachment flange i, 1011-removal tool hole, 1012-rim mounting face,
102-connecting flanges ii, 103-splines,
2-brake disk, 201-connecting flange III, 202-spline groove,
3-hub outer bearing, 4-hub inner bearing,
5-inner hexagon screw, 6-tyre bolt, 7-wheel hub oil seal, 8-gear ring,
9-the assembly of the conventional hub disk,
901-hub with external spigot, 902-brake disc with internal spigot,
903-attachment screws, 904-hub inner bearings of conventional hubcap assemblies,
905-hub oil seal of conventional hub disk assembly, 906-gear ring of conventional hub disk assembly,
907-hub outer bearing of the conventional hub disc assembly,
10-disc brake, 11-brake chamber.
Detailed Description
Example one
A hub disc assembly adopting spline connection comprises a hub 1 and a brake disc 2, wherein:
the inner hole of the hub 1 is respectively provided with a hub outer bearing 3 and a hub inner bearing 4, and one side of the hub inner bearing 4 is provided with a hub oil seal 7; the middle part of the outer circle of the hub 1 is provided with a connecting flange I101 used for connecting a tire, and the connecting flange I101 is provided with a rim mounting surface 1012 and tire bolts 6 used for connecting the tire. The excircle of one end of the hub 1 is provided with a spline 103, the inner hole of one end of the brake disc 2 is provided with a spline groove 202, and the spline 103 of the hub 1 is matched and connected with the spline groove 202 of the brake disc 2. During service braking, the spline can bear most braking reverse torque, so that the shearing torque borne by the socket head cap screws can be reduced, the risk of loosening of bolts is reduced, and the reliability of structural connection is greatly improved.
The outer circle of the hub 1 is also provided with a connecting flange II 102 at one end connected with the brake disc 2, the outer circle of the brake disc 2 is provided with a connecting flange III 201 at one end connected with the hub 1, and the connecting flange II 102 and the connecting flange III 201 are connected and fixed together through a fastening connecting piece, namely an inner hexagon screw 5. The utility model discloses a socket cap screw 5 is connected wheel hub and brake disc together fixedly, and it is connected more reliably. And wheel hub 1 corresponds hexagon socket head cap screw position at flange I101 and is equipped with extracting tool hole 1011, and the hexagon socket head cap screw is dismantled to extracting tool accessible this extracting tool hole 1011.
The brake disc 2 also has a ring gear 8 mounted in the bore.
The utility model discloses an assembly process as follows:
the outer ring of the hub outer bearing 3 and the outer ring of the hub inner bearing 4 are pressed in an inner hole of the hub 1 through a tool, and a tire bolt 6 is provided with a spline straight line and is pressed on a rim mounting surface 1012 of the hub connecting flange I101; the hub oil seal 7 is pressed in an inner hole of the hub through a special tool and mainly seals grease in an inner cavity of the hub; gear ring 8 passes through the mounting screw on brake disc 2, and wheel hub 1 and brake disc 2 pass through the spline connection after laminating, and rethread hexagon socket head cap screw 5 is connected fixedly, screws up the instrument and screws up through wheel hub 1's extracting tool hole 1011 internal hexagon screw 5 to guarantee to screw up the moment and meet the requirements, when dismantling hexagon socket head cap screw equally, also can operate through this extracting tool hole 1011.
As a variation of the first embodiment, the spline may be provided on the inner hole wall of the end portion of the brake disc 2, and the spline groove may be provided on the outer circle of the end portion of the hub 1.
Claims (3)
1. The utility model provides an adopt splined connection's wheel hub dish assembly, includes wheel hub (1), brake disc (2), installs wheel hub outer bearing (3), wheel hub inner bearing (4) respectively in wheel hub (1) hole, is equipped with flange I (101) that are used for connecting the tire on wheel hub (1) excircle, its characterized in that: the excircle of one end part of the hub (1) is connected with the inner hole of one end part of the brake disc (2) through a spline; and the excircle of wheel hub (1) still is equipped with flange II (102) in the one end of connecting brake disc (2), and the excircle of brake disc (2) is equipped with flange III (201) in the one end of connecting wheel hub (1), connects through fastening connection spare between this flange II (102), flange III (201) and fixes together.
2. The splined hub disk assembly of claim 1, wherein: the fastening connecting piece is an inner hexagon screw (5).
3. The splined hub disk assembly of claim 2, wherein: the wheel hub (1) is provided with a disassembling tool hole (1011) for conveniently disassembling the tool of the inner hexagon screw (5) at the position of the connecting flange I (101) corresponding to the inner hexagon screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021550749.0U CN213441901U (en) | 2020-07-30 | 2020-07-30 | Hub disc assembly adopting spline connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021550749.0U CN213441901U (en) | 2020-07-30 | 2020-07-30 | Hub disc assembly adopting spline connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213441901U true CN213441901U (en) | 2021-06-15 |
Family
ID=76307969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021550749.0U Active CN213441901U (en) | 2020-07-30 | 2020-07-30 | Hub disc assembly adopting spline connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213441901U (en) |
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2020
- 2020-07-30 CN CN202021550749.0U patent/CN213441901U/en active Active
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