CN219789830U

CN219789830U - Elastic structure for fixing drive axle

Info

Publication number: CN219789830U
Application number: CN202320892189.4U
Authority: CN
Inventors: 李安清; 龚鹏举; 张振强; 谭宗云; 陈宇
Original assignee: Chengdu Tengyi Zhonglian Power Control Technology Co ltd
Current assignee: Chengdu Tengyi Zhonglian Power Control Technology Co ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-10-03
Anticipated expiration: 2033-04-20

Abstract

The utility model relates to the technical field of characteristic vehicle structures, in particular to an elastic structure for fixing a driving axle, which comprises a plane part A, a plane part B and elastic rubber; the upper surface and the lower surface of the elastic rubber are respectively provided with a plane part A and a plane part B; the plane part A and the plane part B are bonded into a whole during the preparation and the molding of the elastic rubber; the plane parts A and B are hinged with each other, the plane part A is arranged on the frame, and the plane part B is arranged on the drive axle; when the vehicle runs, elastic force is provided through deformation of elastic rubber, and the frame and the driving axle are limited by hinging the plane part A and the plane part B. The beneficial effects achieved by the utility model are as follows: the connecting mode of the leaf spring serving as an elastic element is omitted, the installation between the drive axle and the frame is simplified, the structure is simple, the reliability is high, a certain vibration reduction and buffering effect is achieved, and the device is suitable for special vehicles with low requirements on wheel runout; the height of the chassis, the height of the vehicle body and the height of the mass center of the whole vehicle are effectively reduced.

Description

Elastic structure for fixing drive axle

Technical Field

The utility model relates to the technical field of special vehicles, in particular to an elastic structure of a fixed drive axle.

Background

A transaxle is a mechanism located at the end of the drive train that can vary the rotational speed and torque from the transmission and transmit them to the drive wheels.

The leaf spring is an elastic element widely used in automotive suspensions, and is generally used together with a drive axle, and is connected with a frame through the leaf spring, so that the leaf spring bears the load impact of wheels on the frame and eases the vibration of the frame. But the longitudinal dimension of the leaf spring is overlong, and the height of the whole vehicle after arrangement is overhigh, so that a larger installation space is required, and the arrangement of the whole vehicle is not facilitated.

Based on the above, for some special vehicles with compact structure and low requirement on wheel runout, the company designs a new elastic fixing structure of the driving axle, and the elastic fixing structure has the functions of reliably fixing the driving axle and damping vibration.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, provides an elastic structure for fixing a driving axle, solves the problem that the traditional leaf spring is unfavorable for vehicle arrangement due to long size, and achieves the effects of simple structure and reliable shock absorption.

The aim of the utility model is achieved by the following technical scheme: an elastic structure for fixing a drive axle comprises a plane part A, a plane part B and elastic rubber;

the upper surface and the lower surface of the elastic rubber are respectively provided with a plane part A and a plane part B;

the plane part A and the plane part B are bonded into a whole during the preparation and the molding of the elastic rubber;

the plane parts A and B are hinged with each other, the plane part A is arranged on the frame, and the plane part B is arranged on the drive axle;

when the vehicle runs, elastic force is provided through deformation of elastic rubber, and the frame and the driving axle are limited by hinging the plane part A and the plane part B.

In the scheme, the elastic rubber is used for replacing the traditional leaf spring, so that the buffer effect is also achieved; the elastic rubber, the plane part A and the plane part B are small and simple in structure, are beneficial to layout in a vehicle, and meet the requirements of special vehicles with compact structures and low requirements on wheel runout. In addition, in the scheme, because the special vehicle with low requirement on wheel runout is mainly aimed at, the plane part A and the plane part B are directly hinged, and compared with the traditional shock absorber assembly, the novel shock absorber assembly is simpler in structure and more convenient to install.

In an advantageous development, the hinge is designed. The plane member A and the plane member B are hinged at the front end, and the hinge is limited in the left-right direction, namely, the frame and the drive axle are mainly overturned in the up-down direction by corresponding rotating shafts, so that the left-right position change cannot be greatly generated.

In the above-mentioned scheme, the design of articulated department is mainly in order to simplify the structure. The frame and the drive axle are turned up and down mainly by the corresponding rotating shafts, so that the left and right position change cannot be generated greatly, and the frame and the drive axle are mainly used as special working vehicles with special requirements, such as fork trucks and aircraft tractors in sites.

Further, the hinge is designed. The front end of the plane member A is provided with a bushing A, and the front end of the plane member B is provided with two bushings B; the bushing A is arranged between two bushings B, a pin shaft penetrates through the three bushings, and gaps are reserved between adjacent bushings. The pin shaft is arranged in the horizontal direction left and right of the vehicle, and the two bushings B limit the bushing A, so that only a small amount of change can be generated between the vehicle frame and the drive axle, and the limit is formed.

The pin is designed in a further step. One end of the pin shaft is provided with a baffle disc, and the other end of the pin shaft is provided with a thread section; the thread section is provided with a safety pin hole. When the pin shaft passes through the bushing A and the two bushings B, the washer and the nut are sleeved at the thread section, and the safety pin is inserted into the safety pin hole.

In an advantageous embodiment, the planar plate a is designed. The plane member A is provided with a positioning pin A. When the planar member a is mounted on the frame: and the positioning pin A is used for positioning and the corresponding bolt is used for locking and fixing. Quick installation is realized.

Further, the planar plate a is specifically designed. The upper surface of the plane part A is provided with a positioning pin A, and a plurality of threaded holes A are formed in the plane part A; the frame is provided with a corresponding pin hole A and a corresponding threaded hole C. When the plate member a is mounted on the vehicle frame: the positioning pin A is inserted into the pin hole A, the threaded hole A is aligned with the threaded hole C, and the positioning pin A is fixedly installed through the bolt A.

In an advantageous embodiment, the planar plate B is designed. The plane member B is provided with a positioning pin B. When the planar member B is mounted on the transaxle: and the positioning pin B is used for positioning and the corresponding bolt is used for locking and fixing. Quick installation is achieved.

Further, the planar plate B is specifically designed. The upper surface of the plane member B is provided with a positioning pin B, and a threaded hole B is also formed in the plane member B; the driving axle is provided with a corresponding pin hole B, and a corresponding threaded hole D is formed in the driving axle. When the plane member B is mounted on the drive axle: the locating pin B is inserted into the pin hole B, the threaded hole B is aligned with the threaded hole D, and the locating pin B is fixedly installed through the bolt B.

In an advantageous embodiment, the planar element a is a plate-shaped upper support plate and the planar element B is a plate-shaped lower support plate; the upper support plate and the lower support plate are arranged in parallel, a space is reserved between the upper support plate and the lower support plate, and elastic rubber is located at the space.

For easy understanding, the main innovation points of the scheme are described:

1. the structure is small and simple, the space arrangement is reduced, and the vehicle wheel jumping device is beneficial to being installed on special vehicles for jumping wheels;

for some special vehicles, vehicles which are carried in an indoor factory building are facilitated, and because the vehicles walk on a relatively flat ground, the vehicles have lower wheel runout (compared with a common automobile); while these feature vehicles are limited by volume, load, etc., sometimes the center of gravity cannot be too high, traditional automotive suspensions have not only high center of gravity but also large installation space; ( For example, an aircraft tractor needs to be moved to the lower part of an aircraft, and the whole aircraft is moved after an aircraft tire is lifted; because of the limited height of the aircraft at the belly, the general automotive suspension structure cannot meet the requirements )

In the scheme, the elastic rubber is directly bonded with the plane piece A and the plane piece B during molding, other elastic rubbers are not required to be fixed, and the plane piece A and the plane piece B only need to be hinged, so that the structure is simple; the elastic structure with simple and small structure is beneficial to being arranged on special vehicles with small space and special requirements on the center of gravity;

2. the limiting effect is good;

the traditional automobile suspension has good elasticity; when the structure is used on special vehicles such as carrying and the like, when the vehicle starts and stops when carrying heavy objects, the vehicle frame and the driving axle are easy to shake due to high elasticity, so that the objects shake, and the heavy objects have the possibility of toppling over;

in the scheme, the front ends between the plane piece A and the plane piece B are hinged and limited, so that the plane piece A and the plane piece B can only change in a certain overturning position in the up-down direction, the left-right position displacement variation is very weak, and the phenomena of vehicle braking nodding and accelerating head lifting are avoided; therefore, the position variation between the frame and the drive axle is small, so that the middle part of the heavy-weight object is easy to shake in the carrying process, and the toppling is avoided. (for example, the two plates are integrated after being provided with the springs with larger elasticity, when a cup of water is placed on the two plates, the water is easy to shake when pushed, the two plates adopt the springs with smaller elasticity and limit the left and right directions to a certain extent, and when a cup of water is placed on the two plates, the water is not easy to shake when pushed).

The utility model has the following advantages: the connecting mode of the leaf spring serving as an elastic element is omitted, the installation between the drive axle and the frame is simplified, the structure is simple, the reliability is high, a certain vibration reduction and buffering effect is achieved, and the device is suitable for special vehicles with low requirements on wheel runout; the height of the chassis, the height of the vehicle body and the height of the mass center of the whole vehicle are effectively reduced.

Drawings

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

FIG. 2 is an exploded view of the present utility model;

fig. 3 is a schematic structural view of a pin shaft at the position of insertion;

FIG. 4 is a schematic structural view of an upper bracket plate;

FIG. 5 is a schematic view of the structure of the lower bracket plate;

FIG. 6 is a schematic view of the structure of the present utility model mounted in cooperation with a vehicle frame and a drive axle;

in the figure: 1-upper support plate, 101-threaded hole A, 102-locating pin A, 103-bushing A, 2-lower support plate, 201-threaded hole A, 202-locating pin B, 203-bushing B, 3-elastic rubber, 4-pin shaft, 401-baffle disc, 402-threaded section, 403-safety pin hole, 5-nut, 6-safety pin, 7-flat washer, 8-frame, 9-drive axle, 10-bolt A, 11-bolt B.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.

Referring to fig. 1 and 2, an elastic structure for fixing a drive axle includes a planar member a, a planar member B, and an elastic rubber 3; the upper surface and the lower surface of the elastic rubber 3 are respectively provided with a plane part A and a plane part B, and the plane part A and the plane part B are bonded into a whole when the elastic rubber 3 is prepared and molded;

the plane members A and B are hinged with each other through the pin shaft 4, and the plane member A is mounted on the frame 8 and the plane member B is mounted on the drive axle 9.

The vulcanized elastic rubber 3 between the upper bracket plate 1 and the lower bracket plate 2 realizes the function of a spring. In the normal running engineering of the vehicle, when the load of the ground to the wheels is smaller, the elastic rubber spring 3 does not deform, and the support frame runs normally. When the load of the ground to the wheels is large, the upper support plate 1 rotates around the pin shaft 4, the elastic rubber spring 3 deforms, and the impact of the ground is buffered.

The vulcanized elastic rubber 3 fixes the upper and lower support plates into a whole, so that the installation process between the parts and the drive axle 9 and the frame 8 is simplified.

In the embodiment, the plane member a is a plate-shaped upper support plate 1, and the plane member B is a plate-shaped lower support plate 2; the upper support plate 1 and the lower support plate 2 are arranged in parallel with a space therebetween, and the elastic rubber 3 is located at the space.

In this embodiment, the flat plates a and B are designed. The plane member A has a positioning pin A102 thereon, and the plane member B has a positioning pin B202 thereon. When installed, the elastic fixing structure is positioned with the frame 8 by the positioning pin a102 of the upper bracket plate 1 and then connected to the frame 8 using the bolt a 10. The elastic fixing structure is positioned with the transaxle 9 by the positioning pin B202 of the lower bracket plate 2, and then connected to the transaxle 9 using the bolt B11.

Further, the plane part A and the plane part B are designed:

the upper surface of the plane part A is provided with a positioning pin A102, and a plurality of threaded holes A101 are also formed in the plane part A; the frame 8 is provided with a corresponding pin hole A and a corresponding threaded hole C; when the plate member a is mounted on the frame 8: inserting a positioning pin A102 into the pin hole A, aligning the threaded hole A101 with the threaded hole C and fixedly mounting the positioning pin through a bolt A10;

the upper surface of the plane member B is provided with a positioning pin B202, and a threaded hole B201 is also formed in the plane member B; the driving axle 9 is provided with a corresponding pin hole B and a corresponding threaded hole D; when the planar member B is mounted on the drive axle 9: the positioning pin B202 is inserted into the pin hole B, and the threaded hole B201 is aligned with the threaded hole D and fixedly mounted via the bolt B11.

In this embodiment, the flat members a and B are hinged at the front ends, and the hinge is limited in the lateral direction, that is, the frame 8 and the drive axle 9 are turned up and down mainly by the corresponding rotation shafts, so that the lateral position cannot be changed greatly.

The front ends of the plane parts A and B are hinged and limited, so that the plane parts A and B can only change in a certain turnover position in the up-down direction, and the left-right position displacement variation is very weak; therefore, the position variation between the frame and the drive axle is small, so that the middle part of the heavy-weight object is easy to shake in the carrying process, and the toppling is avoided.

Further, the hinge is designed:

the front end of the plane member A is provided with a bushing A103, and the front end of the plane member B is provided with two bushings B203; the bushing A103 is arranged between two bushings B203, a pin shaft 4 is penetrated between the three bushings, and a gap is reserved between adjacent bushings in the three bushings; the pin shaft 4 is arranged in the horizontal direction of the left and right of the vehicle, and the two bushings B203 limit the bushing A103, so that only a small amount of change can be generated between the frame 8 and the drive axle 9 to form limit;

and, one end of the pin 4 has a baffle 401 and the other end has a threaded section 402; the threaded section 402 is provided with a safety pin hole 403.

When the hinge joint is installed, the upper support plate 1 is connected with the lower support plate 2 through a pin shaft 4, the diameter of a baffle disc 401 at one end of the pin shaft is larger than the diameter of an inner hole of the bushing 203, and the pin shaft does not slide out of the inner hole of the bushing after being locked by using a nut 5; the other end 402 of the pin shaft is of a threaded structure and is provided with a safety pin hole 403, a gasket 7 and a nut 5 are sequentially installed, and after the gasket and the nut 5 are screwed, a safety pin 6 is inserted, so that the pin shaft is prevented from sliding out due to loosening of a bolt, and structural failure is further caused. Meanwhile, the pin shaft 4 can prevent the separation of the drive axle and the frame after the elastic rubber spring 3 is torn and failed, and the safety of the structure is improved.

The foregoing examples represent only preferred embodiments, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the utility model, which falls within the scope of the utility model.

Claims

1. An elastic structure for fixing a drive axle, which is characterized in that: comprises a plane part A, a plane part B and elastic rubber (3);

the upper surface and the lower surface of the elastic rubber (3) are respectively provided with a plane part A and a plane part B;

the plane part A and the plane part B are bonded into a whole when the elastic rubber (3) is prepared and molded;

the plane parts A and B are hinged with each other, the plane part A is arranged on the frame (8), and the plane part B is arranged on the drive axle (9);

when the vehicle runs, elastic force is provided through deformation of the elastic rubber (3), and the frame (8) and the drive axle (9) are limited by hinging the plane part A and the plane part B.

2. The elastic structure of a fixed drive axle of claim 1, wherein: the plane member A and the plane member B are hinged at the front end, and the hinge is limited in the left-right direction, namely, the frame (8) and the drive axle (9) are mainly overturned in the up-down direction by corresponding rotating shafts, so that the left-right position change cannot be greatly generated.

3. The elastic structure of a fixed drive axle of claim 2, wherein: the front end of the plane member A is provided with a bushing A (103), and the front end of the plane member B is provided with two bushings B (203);

the bushing A (103) is arranged between the two bushings B (203), a pin shaft (4) is penetrated between the three bushings, and gaps are reserved between adjacent bushings;

the pin shaft (4) is arranged in the horizontal direction of the left and right of the vehicle, and the two bushings B (203) limit the bushing A (103) so that only a small amount of change can occur between the vehicle frame (8) and the drive axle (9) to form limit.

4. A spring structure for securing a transaxle as defined in claim 3 wherein: one end of the pin shaft (4) is provided with a baffle disc (401) and the other end is provided with a thread section (402);

the thread section (402) is provided with a safety pin hole (403);

when the pin shaft (4) passes through the bushing A (103) and the two bushings B (203), the gasket (7) and the nut (5) are sleeved on the threaded section (402), and the safety pin (6) is inserted into the safety pin hole (403).

5. The elastic structure of a fixed drive axle of claim 1, wherein: the plane part A is provided with a positioning pin A (102);

when the planar member A is mounted on the frame (8): positioning is carried out by the positioning pin A (102) and locking and fixing are carried out by corresponding bolts.

6. The elastic structure of a fixed drive axle of claim 5, wherein: the upper surface of the plane part A is provided with a positioning pin A (102), and a plurality of threaded holes A (101) are formed in the plane part A;

the frame (8) is provided with a corresponding pin hole A and a corresponding threaded hole C;

when the plate member A is mounted on the frame (8): a positioning pin A (102) is inserted into the pin hole A, and the threaded hole A (101) is aligned with the threaded hole C and fixedly mounted through a bolt A (10).

7. The elastic structure of a fixed drive axle of claim 1, wherein: the plane member B is provided with a positioning pin B (202);

when the planar member B is mounted on the drive axle (9): positioning is carried out by a positioning pin B (202) and locking and fixing are carried out by corresponding bolts.

8. The flexible structure for securing a transaxle as defined in claim 7 wherein: the upper surface of the plane member B is provided with a positioning pin B (202), and a threaded hole B (201) is also formed in the plane member B;

the driving axle (9) is provided with a corresponding pin hole B, and a corresponding threaded hole D is formed in the driving axle;

when the plane member B is mounted on the drive axle (9): a positioning pin B (202) is inserted into the pin hole B, and the threaded hole B (201) is aligned with the threaded hole D and fixedly mounted via a bolt B (11).

9. The elastic structure of a fixed drive axle of claim 1, wherein: the plane piece A is a plate-shaped upper support plate (1), and the plane piece B is a plate-shaped lower support plate (2);

the upper support plate (1) and the lower support plate (2) are arranged in parallel, a space is reserved between the upper support plate and the lower support plate, and the elastic rubber (3) is located at the space.