CN214776377U

CN214776377U - Rear axle and rear fork matched with same

Info

Publication number: CN214776377U
Application number: CN202121251159.2U
Authority: CN
Inventors: 韩红生
Original assignee: Zouping Aofa Fastener Co ltd
Current assignee: Zouping Aofa Fastener Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-11-19
Anticipated expiration: 2031-06-03

Abstract

The utility model relates to a rear axle and a rear fork matched with the rear axle, which comprises a rear axle body, wherein the middle part of the rear axle body is provided with a wheel mounting boss with a diameter larger than that of the rear axle body, and a bearing is sleeved on the wheel mounting boss; the rear axle bodies on the two sides of the wheel mounting boss are respectively sleeved with a first sleeve and a second sleeve, and the axial lengths of the first sleeve and the second sleeve are equal; a plug is welded at the outer end of the first sleeve, a first thread section is arranged on the rear axle body on the outer side of the second sleeve, and a fastening nut which is abutted to the second sleeve is screwed on the first thread section. The first sleeve and the second sleeve with the same axial length are arranged on the two sides of the wheel mounting boss, the outer sides of the first sleeve and the second sleeve are respectively provided with the plug and the fastening nut to limit the wheel mounting boss, the wheel mounting boss is clamped and positioned by the first sleeve and the second sleeve, a reference position is provided for the mounting of a follow-up wheel, and the conditions of deviation and serious abrasion of parts are avoided.

Description

Rear axle and rear fork matched with same

Technical Field

The utility model belongs to the technical field of the rear axle, specifically speaking are a rear axle and with rear axle complex back fork.

Background

In a motor-driven or non-motor-driven two-wheeled vehicle, a certain gap exists between a selected hub and a front fork or a rear fork, so that the hub can deviate to one side in the later-stage wheel assembling process, and the deviation in the using process and the serious abrasion of parts and parts caused by the deviation are caused. Particularly, the rear wheel is used as a driving wheel, and once the problem occurs, the problem is serious.

SUMMERY OF THE UTILITY MODEL

For mismatch between solving rear wheel hub and the back vent, lead to appearing being partial to and causing spare part wearing and tearing problem with higher speed in the use, the utility model provides a rear axle reaches and rear axle complex back vent.

The utility model discloses a realize through following technical scheme:

a rear wheel shaft comprises a rear wheel shaft body, wherein a wheel mounting boss with the diameter larger than that of the rear wheel shaft body is arranged in the middle of the rear wheel shaft body, and a bearing is sleeved on the wheel mounting boss; the rear axle body on two sides of the wheel mounting boss is respectively sleeved with a first sleeve and a second sleeve which are abutted against the wheel mounting boss, and the axial lengths of the first sleeve and the second sleeve are equal; the outer end of the first sleeve is welded with a plug, a first thread section is arranged on the rear axle body on the outer side of the second sleeve, and a fastening nut which is abutted to the second sleeve is screwed on the first thread section. The first sleeve and the second sleeve with the same axial length are arranged on the two sides of the wheel mounting boss, the outer sides of the first sleeve and the second sleeve are respectively provided with the plug and the fastening nut to limit the wheel mounting boss, the wheel mounting boss is clamped and positioned by the first sleeve and the second sleeve, a reference position is provided for the mounting of a follow-up wheel, and the conditions of deviation and serious abrasion of parts are avoided.

The utility model discloses a further improvement still, above-mentioned wheel installation boss is kept away from and is equipped with the second screw thread section on the rear axle body of first screw thread section one side, be equipped with on the first telescopic inner wall with second screw thread section matched with internal thread. The first sleeve is connected to the rear axle body in a threaded mode to be matched with the plug to fix the position of the plug relative to the rear axle body.

The utility model discloses a further improvement still, be equipped with the spline groove on the rear axle body between above-mentioned wheel installation boss and the first screw thread section, be equipped with on the telescopic inner wall of second with spline groove matched with spline protruding. The second sleeve is connected with the spline of the rear axle body, and the mounting operation of the second sleeve on the rear axle body is rapidly realized.

The utility model discloses a further improvement still, the both ends of above-mentioned rear axle body all are equipped with the installation guide part, the installation guide part all is the little round platform form in the big outside of inboard. The installation convenience of the first sleeve, the second sleeve and the fastening nut on the rear wheel axle body is facilitated through the circular truncated cone-shaped installation guide part.

The utility model discloses a further improvement still, above-mentioned first sleeve, wheel installation boss and the telescopic outer wall diameter of second equal. The outer diameters of the three are equal, so that the rapid and convenient degree of the overall operation is improved.

A rear fork matched with a rear wheel shaft comprises a rear fork body and the rear wheel shaft, wherein a first fork body and a second fork body are arranged at the lower part of the rear fork; the lower parts of the first fork body and the second fork body are respectively provided with a mounting hole for allowing the rear axle body to pass through, and the inner walls of the two mounting holes are matched with the outer wall of the first sleeve; the distance between the outer sides of the two mounting holes is equal to the overall axial length of the first sleeve, the second sleeve and the wheel mounting boss. The two-way quick installation of the rear wheel axle on the rear fork is realized through the matching of the inner diameters of the two installation holes and the outer diameters of the first sleeve, the second sleeve and the wheel installation boss; and the distance between the outermost sides of the two mounting holes is equal to the whole axial length of the first sleeve, the second sleeve and the wheel mounting boss, so that the wheel mounting boss is mounted in the middle of the first fork body and the second fork body.

According to the technical scheme provided by the utility model, the beneficial effects are that: the first sleeve and the second sleeve with the same axial length are arranged on the two sides of the wheel mounting boss, the outer sides of the first sleeve and the second sleeve are respectively provided with the plug and the fastening nut to limit the wheel mounting boss, the wheel mounting boss is clamped and positioned by the first sleeve and the second sleeve, a reference position is provided for the mounting of a follow-up wheel, and the conditions of deviation and serious abrasion of parts are avoided.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a rear axle structure according to an embodiment of the present invention.

Fig. 2 is a schematic view of a rear fork and a rear axle according to an embodiment of the present invention.

In the drawings: 1. rear wheel axle body, 11, wheel installation boss, 12, second screw thread section, 13, spline groove, 14, first screw thread section, 15, installation guide part, 2, first sleeve, 21, end cap, 3, second sleeve, 4, fastening nut, 5, back fork body, 51, first fork body, 52, second fork body, 53, mounting hole.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments, not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

As shown in the figures, the rear wheel shaft and the rear fork matched with the rear wheel shaft comprise a rear fork body 5 and a rear wheel shaft body 1, wherein a first fork body 51 and a second fork body 52 are arranged at the lower part of the rear fork; the lower portions of the first fork body 51 and the second fork body 52 are each provided with a mounting hole 53 that allows the rear axle body 1 to pass through. The middle part of the rear wheel shaft body 1 is provided with a wheel mounting boss 11 with the diameter larger than that of the rear wheel shaft body 1, and a bearing is sleeved on the wheel mounting boss 11. The rear axle body 1 on two sides of the wheel mounting boss 11 is respectively sleeved with a first sleeve 2 and a second sleeve 3 which are abutted to the wheel mounting boss 11, and the axial lengths of the first sleeve 2 and the second sleeve 3 are equal; the diameters of the outer walls of the first sleeve 2, the wheel mounting boss 11 and the second sleeve 3 are equal. The outer end of the first sleeve 2 is welded with a plug 21; the rear wheel axle body 1 of the wheel mounting boss 11, which is close to one side of the first sleeve 2, is provided with a second thread section 12, and the inner wall of the first sleeve 2 is provided with an internal thread matched with the second thread section 12. The rear wheel axle body 1 on one side, close to the second sleeve 3, of the wheel mounting boss 11 is provided with spline grooves 13, and the inner wall of the second sleeve 3 is provided with spline protrusions matched with the spline grooves 13. The rear wheel axle body 1 on the outer side of the spline groove 13 is provided with a first thread section 14, and the first thread section 14 is screwed with a fastening nut 4 abutted against the second sleeve 3.

The rear wheel axle comprises a rear wheel axle body 1, and is characterized in that installation guide parts 15 are arranged at two ends of the rear wheel axle body 1, and the installation guide parts 15 are in a circular truncated cone shape with a large inner side and a small outer side.

The outer diameter of the first sleeve 2 is matched with the inner diameter of the mounting hole 53; the overall axial length of the first sleeve 2, the second sleeve 3 and the wheel mounting boss 11 is equal to the distance between the outer sides of the two mounting holes 53. That is, the inner side of the plug 21 contacts the outer side of the first fork 51, the inner side of the fastening nut 4 contacts the outer side of the second fork 52, and the wheel mounting boss 11 is centered in the fork without changing the distance between the first fork 51 and the second fork 52.

In conclusion, when the device is used, wheels are placed in the rear fork, and the rear wheel shaft body 1 is operated to penetrate through the rear fork and the wheels in the rear fork; the first sleeve 2 and the second sleeve 3 are respectively sleeved on the rear axle body 1 through two ends, the first sleeve 2 is in position fixation on the rear axle body 1 through screwing, the second sleeve 3 is compressed and fixed through the fastening nut 4 on the outer side, the inner side of the plug 21 is in contact with the outer side of the first fork body 51, the inner side of the fastening nut 4 is in contact with the outer side of the second fork body 52, and the wheel mounting boss 11 is centered in the fork under the condition that the distance between the first fork body 51 and the second fork body 52 is not changed.

A trailing axle and with trailing axle complex back fork, set up equal axial length's first sleeve and second sleeve through the both sides at wheel installation base to add end cap and fastening nut respectively in first sleeve and the telescopic outside of second and spacing to it, make first sleeve and second sleeve press from both sides tight location with wheel installation base, provide the reference position for the installation of follow-up wheel, avoid appearing partial and therefore the serious condition of spare part wearing and tearing that produce.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative relationships in positions, if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The rear wheel shaft is characterized by comprising a rear wheel shaft body (1), wherein a wheel mounting boss (11) with the diameter larger than that of the rear wheel shaft body (1) is arranged in the middle of the rear wheel shaft body (1), and a bearing is sleeved on the wheel mounting boss (11); a first sleeve (2) and a second sleeve (3) which are abutted to the wheel mounting boss (11) are respectively sleeved on the rear wheel axle body (1) on two sides of the wheel mounting boss (11), and the axial lengths of the first sleeve (2) and the second sleeve (3) are equal; the outer end of the first sleeve (2) is welded with a plug (21), a first thread section (14) is arranged on the rear axle body (1) on the outer side of the second sleeve (3), and a fastening nut (4) abutted to the second sleeve (3) is screwed on the first thread section (14).

2. A rear wheel axle according to claim 1, characterised in that the wheel mounting boss (11) is provided with a second threaded section (12) on the rear wheel axle body (1) on the side remote from the first threaded section (14), and the inner wall of the first sleeve (2) is provided with an internal thread which cooperates with the second threaded section (12).

3. A rear wheel axle according to claim 1, wherein spline grooves (13) are provided in the rear wheel axle body (1) between the wheel mounting bosses (11) and the first threaded sections (14), and spline projections for mating with the spline grooves (13) are provided on the inner wall of the second sleeve (3).

4. A rear wheel axle according to claim 1, characterized in that both ends of the rear wheel axle body (1) are provided with mounting guides (15), and the mounting guides (15) are each in the shape of a truncated cone with a large inside and a small outside.

5. A rear wheel axle according to any one of claims 1 to 4, characterised in that the outer wall diameters of the first sleeve (2), the wheel mounting boss (11) and the second sleeve (3) are equal.

6. A rear fork to be fitted to a rear axle, characterized in that it comprises a rear fork body (5) and a rear axle according to claim 5, said rear fork being provided, in its lower part, with a first fork body (51) and a second fork body (52); the lower parts of the first fork body (51) and the second fork body (52) are respectively provided with a mounting hole (53) allowing the rear axle body (1) to pass through, and the inner walls of the two mounting holes (53) are matched with the outer wall of the first sleeve (2); the distance between the outer sides of the two mounting holes (53) is equal to the overall axial length of the first sleeve (2), the second sleeve (3) and the wheel mounting boss (11).