CN220517904U

CN220517904U - Structure for preventing rear axle half shaft from falling off

Info

Publication number: CN220517904U
Application number: CN202321277646.5U
Authority: CN
Inventors: 张�成
Original assignee: Jiangxi Isuzu Motors Co Ltd
Current assignee: Jiangxi Isuzu Motors Co Ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2024-02-23
Anticipated expiration: 2033-05-24

Abstract

The utility model discloses a structure for preventing a rear axle half shaft from falling out, which relates to the technical field of pickup truck parts and comprises a half shaft bearing, a half shaft, a bearing nut and a bearing seat sleeved into a rear axle shell, wherein the half shaft is arranged on the bearing seat through the half shaft bearing; the structure for preventing the rear axle half shaft from being separated from the frame due to failure of the half shaft bearing still has a constraint function on the half shaft bearing, prevents the whole half shaft and the tire from being directly separated from each other, and avoids the safety risk in the driving process of the automobile caused by structural design.

Description

Structure for preventing rear axle half shaft from falling off

Technical Field

The utility model relates to the technical field of pickup truck parts, in particular to a structure for preventing a rear axle half shaft from falling out.

Background

The rear axle half shaft is an important part in the running process of the automobile, the torque of the automobile engine is transmitted to the rear axle of the automobile through the automobile transmission shaft, and the rear axle half shaft transmits power to wheels and tires, so that the automobile is driven.

The outer end of the rear axle half shaft is connected with the hub, the half shaft is fixed in a bearing seat, in order to prevent the rear axle half shaft from falling out of the bearing seat, the inner ring is generally locked on the half shaft through a half shaft nut, the outer ring of the bearing is pressed in the bearing seat, and the half shaft is sleeved in the rear axle shell through the bearing seat. The axle is prevented from backing out of the bearing seat by the axle nut.

However, the diameter of the half-axle nut is designed to be smaller than the diameter of the opening on the bearing seat, so that certain safety risks exist in the design, the half-axle nut cannot strongly restrict the half-axle once the bearing fails and breaks away from the bearing seat in the running process of the vehicle, and then the whole half-axle and the tire are directly separated from the bearing seat, so that safety accidents are caused.

Disclosure of Invention

The utility model aims to provide a structure for preventing a rear axle half shaft from falling out, which still has a constraint function on half shafts under the condition that a half shaft bearing fails and a frame is scattered, prevents the whole half shaft and a tire from falling out directly, and avoids the safety risk in the driving process of an automobile caused by structural design.

The above-mentioned optimization structure of the utility model is realized through the following technical scheme: the utility model provides a prevent structure that rear axle semi-axis deviate from, includes semi-axis bearing, semi-axis, bearing nut, embolias rear axle casing's bearing frame, the semi-axis passes through the semi-axis bearing is installed on the bearing frame, be equipped with on the semi-axis bearing nut, still be equipped with the anticreep retaining ring on the semi-axis, the anticreep retaining ring is located the semi-axis bearing with between the bearing nut, the external diameter of anticreep retaining ring is greater than the trompil diameter of bearing frame.

In some embodiments, a locking washer is disposed between the anti-slip collar and the bearing nut.

In some embodiments, a sealing groove is arranged on the open hole side of the bearing seat, and a sealing ring is arranged in the sealing groove.

In some embodiments, the anti-drop collar is made of Q235 carbon structural steel.

In some embodiments, an annular cushion layer fixed on the inner wall of the bearing seat is arranged outside the anti-falling retainer ring, and a gap is reserved between the anti-falling retainer ring and the annular cushion layer.

In some embodiments, the diameter of the bearing nut is 67mm, the bore diameter of the bearing seat is 72mm, and the outer diameter of the anti-slip collar is 92mm.

In some embodiments, a locking washer is disposed between the anti-slip collar and the side bearing.

In summary, the utility model has the following beneficial effects:

this kind of structure that prevents that rear axle semi-axis from deviating from is equipped with the anticreep retaining ring on the semi-axis, with the anticreep retaining ring setting between semi-axis bearing and bearing nut, and set the diameter of anticreep retaining ring to be greater than the trompil diameter of bearing frame, when the circumstances of the inefficacy loose frame of semi-axis bearing takes place in the automobile driving process, because the diameter of anticreep retaining ring sets up to be greater than the trompil diameter of bearing frame, the anticreep retaining ring is located the bearing frame installation cavity, block bearing nut break away from in the bearing frame, still can retrain the semi-axis, prevent that whole semi-axis and tire from directly deviating from in the bearing frame, thereby avoid the security risk in the automobile driving process that structural design causes.

Drawings

Fig. 1 is a structural diagram of the present utility model.

In the figure: 1. an anti-falling check ring; 2. a half shaft bearing; 3. a locking washer; 4. a half shaft; 4. a positioning plate; 5. a bearing nut; 6. a bearing seat; 7. an annular cushion layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a structure for preventing a rear axle half shaft from being separated comprises a half shaft bearing 2, a half shaft 4, a bearing nut 5 and a bearing seat 6, wherein the bearing seat 6 is sleeved into a rear axle housing, the fixing of the bearing seat 6 on the rear axle housing is realized, an installation cavity is arranged in the bearing seat 6, an opening is arranged on the bearing seat 6, the half shaft 2 is arranged in the installation cavity, the half shaft 4 passes through the opening and a through hole of the half shaft bearing 2, the bearing seat 6 is provided with the bearing nut 5, the diameter of the bearing nut 5 can be 67mm, the bearing nut 5 on the half shaft 4 is locked, the half shaft 4 is fixed on the bearing seat 6, one end of the bearing nut 5, far away from the half shaft bearing 2, can be a conical table surface, and the bearing nut 5 can be prevented from being too large in the driving process, thereby influencing the running of an automobile.

The anti-drop retainer ring 1 is further arranged on the half shaft 4, the anti-drop retainer ring 1 can be made of Q235 type carbon structural steel, the Q235 type carbon structural steel has low carbon content and good comprehensive performance, and the strength, the plasticity, the welding performance and the like are well matched, so that the requirement of the anti-drop retainer ring 1 for blocking the bearing nut 5 from being dropped from the bearing seat 6 on materials can be met; the anti-drop retaining ring 1 is located between the half axle bearing 2 and the bearing nut 5, the outer diameter of the anti-drop retaining ring 1 is larger than the diameter of the opening of the bearing seat 6, the diameter of the opening of the bearing seat 6 can be 72mm, and the outer diameter of the anti-drop retaining ring 1 can be 92mm, because the diameter of the anti-drop retaining ring is set to be larger than the diameter of the opening of the bearing seat, when the situation that the bearing fails and breaks away from a rack occurs, the anti-drop retaining ring is located in the bearing seat mounting cavity, the bearing nut is blocked from being separated from the bearing seat, the half axle and the tire can still be restrained, the whole half axle and the tire are prevented from being directly separated from the bearing seat, and therefore the safety risk in the automobile driving process caused by structural design is avoided. The locking washer 3 is arranged between the anti-falling check ring 1 and the bearing nut 5, so that the locking effect of the bearing nut 5 on the half shaft 4 can be enhanced, and the connection strength among the half shaft bearing 2, the anti-falling check ring 1 locking washer 3, the bearing nut 5 and the half shaft 4 is enhanced.

The specific working principle is as follows: the half shaft 4 is arranged on the bearing seat 6 through the half shaft bearing 2, then the anti-falling check ring 1 is arranged on the half shaft 4 close to the half shaft bearing 2, then the locking washer 3 is arranged on the half shaft 4 close to the anti-falling check ring 1, finally the half shaft 4 is sleeved with the bearing nut 5 and is close to the locking washer 3, and the bearing nut 5 is tightly screwed for locking, so that the installation of the whole structure is realized; when the automobile is driven, the half shaft bearing 2 fails to be scattered, the half shaft 4 moves along the direction of the opening of the bearing seat 6 with the anti-falling check ring 1 and the bearing nut 5 on the half shaft 4, the diameter of the anti-falling check ring 1 is larger than that of the opening of the bearing seat 6, the bearing seat 6 still restrains the anti-falling check ring 1, the anti-falling check ring 1 is limited in the installation cavity of the bearing seat 6 and cannot fall off, so that the half shaft 4 is still limited in the installation seat 6, the whole half shaft 4 and the tire cannot fall off from the installation seat 6, and the safety risk in the automobile driving process caused by structural design is avoided.

In some embodiments, a sealing groove is arranged on the open hole side of the bearing seat 6, and a sealing ring is arranged in the sealing groove to strengthen the tightness of the interior of the bearing seat 6.

In some embodiments, the annular cushion layer 7 fixed on the inner wall of the bearing seat 6 is arranged outside the anti-falling retainer ring 1, a gap is reserved between the anti-falling retainer ring 1 and the annular cushion layer 7, the gap can not influence the normal work of the half shaft 4, and when the half shaft bearing 2 is damaged, the anti-falling retainer ring 1 cannot incline by an excessive angle, so that the abrasion between the half shaft 4 and the bearing seat 6 is reduced.

In some embodiments, a locking gasket is arranged between the anti-falling check ring 1 and the half-shaft bearing 2, so that the direct contact between the anti-falling check ring 1 and the half-shaft bearing 2 is avoided, the anti-falling check ring 1 and the half-shaft bearing 2 are protected, and meanwhile, the connection strength between the anti-falling check ring 1 and the half-shaft bearing 2 is enhanced through the locking gasket.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a prevent structure that rear axle semi-axis deviate from, includes semi-axis bearing (2), semi-axis (4), bearing nut (5), embolias bearing frame (6) of rear axle casing, its characterized in that: the half shaft (4) is arranged on the bearing seat (6) through the half shaft bearing (2), the bearing nut (5) is arranged on the half shaft (4), the anti-falling check ring (1) is further arranged on the half shaft (4), the anti-falling check ring (1) is positioned between the half shaft bearing (2) and the bearing nut (5), and the outer diameter of the anti-falling check ring (1) is larger than the diameter of an opening of the bearing seat (6); an annular cushion layer (7) fixed on the inner wall of the bearing seat (6) is arranged outside the anti-falling retainer ring (1), and a gap is reserved between the anti-falling retainer ring (1) and the annular cushion layer (7); when the half shaft bearing (2) is damaged, the anti-falling check ring (1) cannot incline at an excessive angle, so that abrasion between the half shaft (4) and the bearing seat (6) is reduced.

2. A structure for preventing rear axle shaft escape as defined in claim 1, wherein: and a locking washer (3) is arranged between the anti-falling check ring (1) and the bearing nut (5).

3. A structure for preventing rear axle shaft escape as defined in claim 1, wherein: and a sealing groove is arranged on the side of the bearing seat (6) with the opening, and a sealing ring is arranged in the sealing groove.

4. A structure for preventing rear axle shaft escape as defined in claim 1, wherein: the anti-drop retainer ring (1) is made of Q235 type carbon structural steel.

5. A structure for preventing rear axle shaft escape as defined in claim 1, wherein: the diameter of the bearing nut (5) is 67mm, the diameter of the opening of the bearing seat (6) is 72mm, and the outer diameter of the anti-falling retainer ring (1) is 92mm.

6. A structure for preventing rear axle shaft escape as defined in claim 1, wherein: the thickness of the anti-falling check ring (1) can be 4mm.

7. A structure for preventing rear axle shaft escape as defined in claim 1, wherein: and a locking gasket is arranged between the anti-falling check ring (1) and the half shaft bearing (2).