CN218197921U

CN218197921U - Intermediate transmission shaft transition support of four-wheel drive automobile

Info

Publication number: CN218197921U
Application number: CN202221239250.7U
Authority: CN
Inventors: 柳欢; 祁林星; 潘超然
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2023-01-03
Anticipated expiration: 2032-05-23

Abstract

The utility model aims at providing a can satisfy the chassis and wholly attach together the demand, can reduce development cost and development cycle's four-wheel drive car intermediate drive axle transition support again, the transition support includes the boss, the middle part of boss is provided with the recess that is used for holding the installing support, the connecting hole has been seted up on the boss of recess both sides, the connecting hole corresponds with the mounting hole position on the lug of installing support and arranges, the bottom of boss has the mounting panel towards both sides extension, automobile body connecting hole and technology supported hole have been seted up on the mounting panel. In the scheme, a transition support with a process supporting hole and fixed in a Z direction perpendicular mode with the vehicle body is added between an original middle transmission shaft fixing support and a vehicle body lower bottom plate, before the whole chassis is assembled, the mounting support and the transition support are assembled in advance and placed on a process tray, the process tray is matched with the process supporting hole through a positioning pin and then lifted together with the process tray, and the whole chassis is assembled.

Description

Intermediate transmission shaft transition support of four-wheel drive automobile

Technical Field

The utility model relates to an automobile transmission system technical field, concretely relates to transmission shaft transition support in middle of four-wheel drive car.

Background

If two front wheels of a front-wheel-driven automobile are sunk in a ditch (which is often encountered on a bad road), the automobile cannot continue to move by using the power of an engine to generate driving force through the friction between the wheels and the ground, and if four wheels of the automobile can generate the driving force, two wheels which are not sunk in the ditch can normally work, so that the automobile continues to run. Therefore, for off-road vehicles or military vehicles which need to frequently run on bad roads, no roads and other bad road conditions, four-shaft driving is mostly adopted, and even some high-grade vehicles also adopt four-shaft driving. The middle transmission shaft of the four-wheel drive automobile is generally a structure with two sections of shaft tubes with supports, the two sections of shaft tubes are rigid structures, the middle connection structure is a universal joint, the universal joint is assembled and mounted in a mounting support in an interference fit manner, the mounting support is structurally shown in figures 1 and 2, mounting holes in two lifting lugs of the mounting support are fixedly connected with an automobile body through bolts, the mounting support only has a fixing hole connected with the automobile body, the Z-direction vertical fastening requirement does not exist, and meanwhile, no process support hole exists. However, for a new vehicle type developed on an old platform and provided with four-wheel drive configuration or upgraded by a chassis integrated assembly process, the original middle transmission shaft fixing bracket can not meet the requirement that a process supporting hole and a fixing point are vertical in the Z direction, and if the lower chassis and the transmission shaft fixing bracket of the vehicle body are re-developed, the investment is huge and the development period is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can satisfy the chassis and wholly attach together the demand, can reduce development cost and development cycle's four-wheel drive car intermediate drive axle transition support again.

In order to realize the purpose, the utility model discloses a technical scheme be: the utility model provides a transmission shaft transition support in middle of four wheel drive cars, the transition support includes the boss, and the middle part of boss is provided with the recess that is used for holding the installing support, has seted up the connecting hole on the boss of recess both sides, and the connecting hole corresponds with the mounting hole position on the lug of installing support and arranges, and the bottom of boss has the mounting panel towards both sides extension, has seted up automobile body connecting hole and technology support hole on the mounting panel.

In the scheme, a transition support with a process supporting hole and fixed in a Z direction perpendicular mode with the vehicle body is added between an original middle transmission shaft fixing support and a vehicle body lower bottom plate, before the whole chassis is assembled, the mounting support and the transition support are assembled in advance and placed on a process tray, the process tray is matched with the process supporting hole through a positioning pin and then lifted together with the process tray, and the whole chassis is assembled.

Drawings

Fig. 1 and 2 are schematic structural views of a mounting bracket in the prior art;

FIG. 3 is a schematic view of an assembled state of a transition bracket of an intermediate transmission shaft of a four-wheel drive vehicle;

FIG. 4 is a top view of a transition support;

fig. 5 is a sectional view taken along line E-E in fig. 4.

Detailed Description

As shown in fig. 3-5, a transition bracket 10 of a four-wheel drive vehicle intermediate transmission shaft includes a boss 11, a groove 12 for accommodating a mounting bracket 20 is provided in the middle of the boss 11, connection holes 111 are provided on the boss 11 at both sides of the groove 12, the connection holes 111 are arranged corresponding to the positions of mounting holes 21 on a lifting lug of the mounting bracket 20, a mounting plate 13 extends from the bottom of the boss 11 towards both sides, and a vehicle body connection hole 131 and a process support hole 132 are provided on the mounting plate 13. A transition support 10 with a process support hole 132 and fixed with a vehicle body in a Z-direction vertical fixing mode is additionally arranged between an original middle transmission shaft fixing support 20 and a vehicle body lower bottom plate, before the whole chassis is assembled, the mounting support 20 and the transition support 10 are separately assembled in advance and placed on a process tray, the process tray is matched with the process support hole 132 through a positioning pin and then lifted together with the process tray, and the requirement of the whole assembly of the chassis is met.

The process supporting hole 132 is a waist-shaped hole, the length of the hole is consistent with the groove length direction of the groove 12, the process supporting hole 132 can be a waist-shaped hole with the length of 25mm and the radius of 6.5mm, the X direction has a tolerance function, and a specific vehicle type is determined according to the calculation of the size and the process requirement.

In order to ensure the connection strength of the transition support 10 and the vehicle body, the width of the mounting plate 13 is greater than that of the boss 11, flanges 14 are arranged on two sides of the bottom of the boss 11, and the flanges 14 extend to the mounting plate 13 and are connected with the mounting plate 13 into a whole, so that the strength of the transition support 10 is improved.

In order to ensure the reliability of the connection between the transition support 10 and the vehicle body, the process support hole 132 is disposed at the middle position of the mounting plate 13, so as to improve the stability of the process tray during lifting, and the mounting plates 13 on both sides of the process support hole 132 are respectively provided with a vehicle body connecting hole 131.

Further, the cross section of the groove 12 is semicircular and matched with the contour of the lower half body 22 of the mounting bracket 20, and when the mounting bracket is placed, the lower half body 22 of the mounting bracket 20 is just clamped in the groove 12 to form limit fit.

Reinforcing ribs are arranged in the concave cavity at the bottom of the boss 11 and the concave cavity at the bottom of the mounting plate 13, so that the overall strength of the transition support 10 is further improved.

Claims

1. The utility model provides a transmission shaft transition support in middle of four drive cars which characterized in that: transition support (10) are including boss (11), the middle part of boss (11) is provided with recess (12) that are used for holding installing support (20), has seted up connecting hole (111) on boss (11) of recess (12) both sides, and mounting hole (21) position on connecting hole (111) and the lug of installing support (20) corresponds and arranges, and there are mounting panel (13) bottom of boss (11) towards both sides extension, has seted up on mounting panel (13) automobile body connecting hole (131) and technology support hole (132).

2. The transition bracket for the intermediate transmission shaft of the four-wheel drive automobile according to claim 1, characterized in that: the process supporting hole (132) is a waist-shaped hole, and the length of the hole is consistent with the length direction of the groove (12).

3. The transition bracket for the intermediate transmission shaft of the four-wheel drive automobile according to claim 1, characterized in that: the width of mounting panel (13) is greater than the width of boss (11), and boss (11) bottom both sides are provided with turn-ups (14), and turn-ups (14) extend to mounting panel (13) department and link as an organic whole with mounting panel (13).

4. The transition bracket for the intermediate transmission shaft of the four-wheel drive automobile according to claim 2, characterized in that: the technical support hole (132) is arranged in the middle of the mounting plate (13), and the mounting plates (13) on two sides of the technical support hole (132) are respectively provided with a vehicle body connecting hole (131).

5. The transition bracket of the intermediate transmission shaft of the four-wheel drive automobile according to claim 1, characterized in that: the cross section of the groove (12) is semicircular and is matched with the profile of the lower half body (22) of the mounting bracket (20).

6. The transition bracket of the intermediate transmission shaft of the four-wheel drive automobile according to claim 1, characterized in that: reinforcing ribs are arranged in the concave cavity at the bottom of the boss (11) and the concave cavity at the bottom of the mounting plate (13).