CN220101770U

CN220101770U - Driving axle spindle nose nut locking structure

Info

Publication number: CN220101770U
Application number: CN202320804496.2U
Authority: CN
Inventors: 李平平; 刘洋; 王勃; 王党青
Original assignee: Shaanxi Hande Axle Co Ltd
Current assignee: Shaanxi Hande Axle Co Ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-11-28
Anticipated expiration: 2033-04-12

Abstract

The utility model relates to a driving axle shaft head nut locking structure, which comprises a shaft head and a hub bearing; the hub bearing sleeve is provided with a shaft head; the shaft head is provided with a bracket and a shaft head nut, the bracket is provided with a fastening pin, and the bracket and the shaft head nut are locked in a matched manner through the fastening pin. The locking structure is simple and compact in structure and convenient to operate, and solves the problems of difficult installation and maintenance, poor locking reliability and large required assembly space of the traditional locking structure.

Description

Driving axle spindle nose nut locking structure

Technical Field

The utility model relates to the technical field of drive axles, in particular to a drive axle shaft head nut locking structure.

Background

The reliability of the nut locking of the driving axle head is taken as one of important factors affecting the running safety of vehicles, and the nut locking structure of the common axle head mainly comprises the following three types: an inner spindle head nut, a locking plate, an outer spindle head nut, a gasket structure and a double-nut self-locking structure; the inner spindle head nut, the locking plate and the outer spindle head nut realize locking of the spindle head nut through the principle of elastic deformation of the locking plate and mechanical locking, but the spindle head nut has the problems of complex installation procedure and larger requirement on required installation space; the structure of the spindle head nut and the gasket prevents rotation through the gasket and locks through the trimming of the spindle head nut or the limiting pin, so that the locking of the spindle head nut is realized, but the problems that threads are easy to damage and the nut is difficult to reuse are solved during maintenance; the double-nut self-locking structure is difficult to bear larger impact load, and particularly when a heavy-duty vehicle is applied, the locking reliability of the double-nut self-locking structure is difficult to be fully ensured.

Disclosure of Invention

The utility model provides a locking structure of a driving axle head nut, which has a simple and compact structure and is convenient to operate, and solves the problems of difficult installation and maintenance, poor locking reliability and large required assembly space of the traditional locking structure.

In order to solve the problems in the background art, the utility model is realized by the following technical scheme:

a locking structure of a drive axle head nut comprises a shaft head and a hub bearing; the hub bearing sleeve is provided with the shaft head; the shaft head is provided with a support and a shaft head nut, the support is provided with a fastening pin, and the support and the shaft head nut are locked in a matched mode through the fastening pin.

Preferably, the shaft head is provided with a spline and a thread; the shaft head nut and the bracket are sequentially arranged on the shaft head from outside to inside; the shaft head is connected with the support through a spline, and the shaft head nut is in threaded connection with the shaft head.

Preferably, the bracket is provided with a plurality of limiting holes, and the spindle head nut is provided with a plurality of locking grooves; the fastening pin penetrates through the locking groove and is arranged in the limiting hole.

Preferably, the number of the limiting holes is more than or equal to 6, and the setting angle between the adjacent limiting holes is 50-55 degrees.

Preferably, the number of the locking grooves is more than or equal to 12.

Compared with the prior art, the utility model has the following beneficial technical effects:

1. simple structure, convenient operation: the locking groove on the spindle head nut is only required to be adjusted and aligned with any limit hole arranged on the bracket, and the fastening pin is installed, so that the spindle head nut can be locked;

2. the reliability is high: the mechanical locking structure is adopted, and the rigid locking of the spindle head nut is realized through the rigid blocking effect of the fastening pin;

3. the manufacturing cost is low: the mechanical locking structure is adopted, and the requirements on the manufacturing and mounting precision of related parts are not high, so that the manufacturing cost of the product is effectively reduced.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a second schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic view of the construction of the spindle nose nut of the present utility model;

fig. 4 is a schematic structural view of the stent of the present utility model.

Description of the reference numerals

1. A shaft head; 2. a spindle head nut; 21. a locking groove; 3. fastening pins; 4. a bracket; 41. a limiting hole; 5. and a hub bearing.

Detailed Description

Example 1

As shown in fig. 1-4, a locking structure of a driving axle head nut comprises a shaft head 1 and a hub bearing 5; the hub bearing 5 is sleeved with a shaft head 1; the spindle nose 1 is equipped with support 4 and spindle nose nut 2, and support 4 is equipped with fastening pin 3, and support 4 and spindle nose nut 2 pass through fastening pin 3 cooperation locking.

The shaft head 1 is provided with a spline and a thread; the spindle head 1 is sequentially provided with a spindle head nut 2 and a bracket 4 from outside to inside; the spindle head 1 is connected with the bracket 4 through a spline, and the spindle head nut 2 is in threaded connection with the spindle head 1.

The bracket 4 is provided with a plurality of limiting holes 41, and the spindle head nut 2 is provided with a plurality of locking grooves 21; the fastening pin 3 is arranged in the limit hole 41 through the locking groove 21.

The spindle nose nut 2 and the bracket 4 are connected with a limit hole 41 arranged on the bracket 4 by a fastening pin 3 penetrating through a locking groove 21 arranged on the spindle nose nut 2, so as to realize locking.

The number of the limiting holes 41 is more than or equal to 6, and the setting angle between the adjacent limiting holes 41 is 50-55 degrees.

The number of the locking grooves 21 is more than or equal to 12.

Example 2

The assembly mode of the utility model comprises the following steps:

1. the hub bearing 5 is sleeved on the shaft head 1, and the bracket 4 is arranged at a spline position of the shaft head 1 in a spline fit mode;

2. the spindle head nut 2 is in threaded connection with the spindle head 1, and then the fastening pin 3 penetrates through the locking groove 21 formed in the spindle head nut 2 and is installed in the limiting hole 41 formed in the support 4, so that the spindle head nut 2 is locked.

The embodiment given above is a preferable example of realizing the present utility model, and the present utility model is not limited to the above-described embodiment. Any immaterial additions and substitutions made by those skilled in the art according to the technical features of the technical scheme of the utility model are all within the protection scope of the utility model.

Claims

1. A transaxle spindle nose nut locking structure, its characterized in that: comprises a shaft head (1) and a hub bearing (5); the hub bearing (5) is sleeved with the shaft head (1); the novel hydraulic support is characterized in that the shaft head (1) is provided with a support (4) and a shaft head nut (2), the support (4) is provided with a fastening pin (3), and the support (4) and the shaft head nut (2) are locked in a matched mode through the fastening pin (3).

2. The drive axle head nut locking structure according to claim 1, characterized in that the axle head (1) is provided with splines and threads; the shaft head (1) is sequentially provided with the shaft head nut (2) and the bracket (4) from outside to inside; the shaft head (1) is connected with the support (4) through a spline, and the shaft head nut (2) is in threaded connection with the shaft head (1).

3. The locking structure of the drive axle head nut according to claim 2, characterized in that the bracket (4) is provided with a plurality of limiting holes (41), and the axle head nut (2) is provided with a plurality of locking grooves (21); the fastening pin (3) passes through the locking groove (21) and is arranged in the limit hole (41).

4. A drive axle head nut locking structure according to claim 3, characterized in that the number of the limiting holes (41) is more than or equal to 6, and the setting angle between the adjacent limiting holes (41) is 50-55 degrees.

5. A drive axle head nut locking arrangement according to claim 3, characterized in that the number of locking grooves (21) is not less than 12.