CN113682086B

CN113682086B - Axle position adjusting device

Info

Publication number: CN113682086B
Application number: CN202110920269.1A
Authority: CN
Inventors: 高恩壮; 于彦权; 尹传禄; 王东生
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2023-07-14
Anticipated expiration: 2041-08-11
Also published as: CN113682086A

Abstract

The application relates to an axle position adjustment device, including cylinder body, two arc shovels and power unit. The cylinder body comprises two independent piston cavities and two pistons which are respectively connected with the corresponding piston cavities in a sliding way, each arc-shaped shovel is respectively connected with one piston, the arc-shaped shovel is provided with a contact surface for contacting with a wheel of a vehicle, and the contact surface is configured to be matched with the shape of the peripheral surface of the corresponding wheel; the power mechanism is used for providing power for reciprocating the piston in the corresponding piston cavity. According to the axle position adjusting device, when the power mechanism provides power to enable the piston to move out of the piston cavity, the arc shovel connected to the piston is contacted with the corresponding wheel through the contact surface, and then the corresponding wheel is pushed, so that the position of an axle connected to the wheel is changed, manual operation is replaced by the piston and the arc shovel, and the efficiency of adjusting the position of the middle axle or the rear axle is improved.

Description

Axle position adjusting device

Technical Field

The application relates to the technical field of automobiles, in particular to an axle position adjusting device.

Background

Errors in the part manufacturing and assembly process tend to cause the center or rear axles of the three-axle vehicle to be non-perpendicular to the frame rails, resulting in tire wear and suspension and steering system damage. Therefore, the position of the center or rear axle needs to be adjusted. The middle axle is connected with the frame through an upper thrust rod at the middle part of the rear axle, two ends of the middle axle are respectively connected with the frame through a straight lower thrust rod, bolts for connecting two ends of the axle to be adjusted and the lower thrust rods are loosened in the related art, wheels of the axle to be adjusted are pushed until the axis of the axle is perpendicular to the longitudinal extension direction of a longitudinal beam of the frame or the lower thrust rods, gaskets are added between contact surfaces of the lower thrust rods and the axle at the moment, and after the bolts are screwed, the position of the axle meets the requirements.

However, the position of the middle axle or the rear axle can only be manually adjusted at present, and the problem of low efficiency exists.

Disclosure of Invention

Accordingly, it is necessary to provide an axle position adjusting device capable of efficiently adjusting the position of a center axle or a rear axle in order to solve the problem of inefficiency in manually adjusting the position of an axle.

According to one aspect of the present application, there is provided an axle position adjustment device including:

the cylinder body comprises two independent piston cavities and two pistons which are respectively connected with the corresponding piston cavities in a sliding manner;

two arcuate scoops, each of which is connected to one of the pistons, the arcuate scoops having a contact surface for contacting a wheel of a vehicle, the contact surface being configured to match a shape of an outer peripheral surface of the corresponding wheel;

a power mechanism for providing power to reciprocate the piston within the corresponding piston chamber;

wherein the outer peripheral surface of the wheel is used for contacting the ground.

The above-described axle position adjusting device is configured such that when the piston is moved out of the piston chamber by the power supplied from the power unit, the arc-shaped blade connected to the piston is simultaneously moved out of the piston chamber, and the corresponding wheel is pushed in the axial direction of the piston by the contact surface configured to match the shape of the outer peripheral surface of the corresponding wheel, thereby changing the position of the axle connected to the wheel. The device adopts the piston to replace manual operation with the arc shovel, makes the efficiency of adjustment center bridge or rear axle position improve.

In one embodiment, the axle position adjustment device further includes a guide structure including:

the support is arranged at the part of the piston extending out of the cylinder body;

the guide seat is arranged on the outer surface of the cylinder body;

the longitudinal extension direction of the guide rod is parallel to the axis of the piston, one end of the guide rod is fixedly connected with the support, and the other end of the guide rod is connected with the guide seat in a sliding manner.

In one embodiment, the axle position adjusting device further includes:

the rolling mechanism is arranged on the part of the piston extending out of the cylinder body and is used for supporting the piston.

In one embodiment, the axle position adjusting device further includes:

one end of the first sliding rod is connected with the cylinder body;

the rotating arm is connected to one end of the first sliding rod, which is far away from the cylinder body, and the central line of the rotating arm is parallel to the axis of the cylinder body;

and the two ends of the rotating arm are rotatably connected with the supporting structure.

In one embodiment, the support structure comprises:

two second slide bars, two ends of the rotating arm are respectively and rotatably connected to one end of one second slide bar, and the two second slide bars are parallel to each other;

the other ends of the two second sliding rods are connected with the guide rib plates in a sliding manner;

the first support plate is arranged in parallel with the second slide rod, and the guide rib plate is arranged on the first support plate.

In one embodiment, the support structure further comprises:

the locking piece is arranged on the first supporting plate so as to lock the second sliding rod.

In one embodiment, the second slide bar comprises:

the second slide bar body is connected to the guide rib plate in a sliding manner;

the rotating arm support is arranged at one end, close to the rotating arm, of the second sliding rod body, the rotating arm is rotationally connected with the rotating arm support, and the guide rib plate can be abutted to the rotating arm support.

In one embodiment, a groove is formed in one side, away from the second sliding rod, of the first supporting plate, and the longitudinal extension direction of the groove is parallel to the axis of the cylinder body;

the support structure further comprises a second support plate, the second support plate is arranged on one side, away from the second sliding rod, of the first support plate, and a boss is arranged on the second support plate;

the first support plate is slidably connected to the boss through the groove.

In one embodiment, the first sliding rod is slidably connected to the rotating arm.

In one embodiment, the first slide bar comprises:

the first slide bar body is connected with the rotating arm in a sliding manner;

and the limiting part is arranged on the first slide rod body, and the rotating arm can be abutted to the limiting part.

Drawings

FIG. 1 is a schematic view of a center axle, a rear axle and a side member of a vehicle according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of an axle position adjusting device according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of an axle position adjusting device according to another embodiment of the present disclosure;

fig. 4 is a schematic structural view of an axle position adjusting device according to another embodiment of the present application.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 1, two ends of the intermediate axle 10 and the rear axle 12 are respectively connected to the vehicle frame through a straight lower thrust rod 16, in the related art, bolts 18 connecting two ends of the vehicle axle to be adjusted and the lower thrust rod 16 are usually loosened to push the wheels of the vehicle axle to be adjusted until the axis of the vehicle axle is perpendicular to the longitudinal extension direction of the vehicle frame longitudinal beam 14 or the lower thrust rod 16, at this time, gaskets are added between the contact surfaces of the lower thrust rod 16 and the vehicle axle, and after the bolts 18 are tightened, the position of the vehicle axle is made to meet the requirements.

However, currently, manual adjustment of the position of the center or rear axle is time consuming, labor consuming and inefficient.

Therefore, it is necessary to provide an axle position adjusting device that can efficiently adjust the position of the center or rear axle.

FIG. 1 is a schematic view of the structure of a center axle, a rear axle and stringers of a vehicle; FIG. 2 is a schematic view of an axle position adjusting device according to an embodiment of the present disclosure; fig. 3 is a schematic structural view of an axle position adjusting device according to another embodiment of the present application.

Referring to fig. 1-3, an axle position adjustment device in an embodiment of the present application includes a cylinder 20, two arcuate scoops 30, and a power mechanism 40.

The cylinder 20 includes two piston chambers independent of each other and two pistons 22 slidably connected to the corresponding piston chambers, respectively. Further, two piston chambers are respectively provided at both longitudinal ends of the cylinder 20, two pistons 22 are respectively slidably connected to one piston chamber, and the axis of the piston 22 is parallel to the axis of the cylinder 20. By providing two mutually independent piston chambers such that the reciprocating movements of the two pistons 22 within the respective piston chambers do not affect each other, it is achieved that when one piston 22 moves, the other piston 22 remains stationary.

The power mechanism 40 is used to provide power to reciprocate the piston 22 within the corresponding piston chamber. In some embodiments, as shown in fig. 2 and 3, the cylinder body 20 is configured as a hydraulic cylinder, and the power mechanism 40 includes a hydraulic pump, which is connected to two independent piston chambers through different oil inlet and return pipes, so that the processes of oil inlet and return to the two piston chambers do not interfere with each other. Further, the power mechanism 40 is configured to be controlled by a solenoid valve. In use, a user controls the solenoid valve to switch through the push button to change the flow direction of the oil, so that the movement direction of the piston 22 is changed. When the hydraulic pump feeds oil into the piston cavity, the piston 22 moves out of the piston cavity; when the hydraulic pump returns oil, the piston 22 moves into the piston chamber. Through setting up pneumatic cylinder, hydraulic pump and solenoid valve, make axle position adjustment device have simple structure, convenient operation's advantage. In other embodiments, the axle position adjustment device is pneumatically or motor driven.

Each arcuate blade 30 is connected to one piston 22, and each arcuate blade 30 has a contact surface for contacting a wheel of a vehicle, the contact surface being configured to match the shape of the outer peripheral surface of the corresponding wheel; wherein the outer peripheral surface of the wheel is for contacting the ground. When the bridge position device is used, the user places the cylinder 20 between one center bridge wheel and one rear bridge wheel of the vehicle with the axis of the cylinder 20 parallel to the longitudinal extension direction of the side member, and the two arc-shaped spades 30 correspond to one center bridge wheel and one rear bridge wheel, respectively, with the contact surfaces of the arc-shaped spades 30 facing the corresponding wheels and being configured to match the shape of the outer peripheral surfaces of the corresponding wheels.

Thus, when it is desired to adjust the position of either the center axle 10 or the rear axle 12, the user may first operate the power mechanism 40 to make the two arcuate spades 30 fit the outer peripheral surfaces of their corresponding wheels through the respective contact surfaces, then unscrew the bolts 18 connecting the axle to be adjusted to the lower thrust rod 16, so that the two ends of the axle to be adjusted are movable, at this time, the other axle is still fixedly connected to the lower thrust rod 16 through the bolts 18, and by moving the piston 22 adjacent to the axle to be adjusted out of the piston cavity, the arcuate spades 30 move together with the piston 22 and push the wheels to be adjusted until the axle to be adjusted is perpendicular to the vehicle longitudinal beam 14. After the wheel is pushed to the desired position, the user can operate the power mechanism 40 to retract the piston 22 into the piston cavity, facilitating multiple uses of the device and saving space. According to the axle position adjusting device, the piston 22 driven by the power mechanism 40 and the arc shovel 30 are adopted to replace manual operation, so that the axle position adjusting efficiency is improved, and the labor intensity is reduced.

In some embodiments of the present application, as shown in fig. 2 and 3, the axle position adjustment device further includes a rolling mechanism. The rolling mechanism is provided at a portion of the piston 22 extending out of the cylinder 20 and is used for supporting the piston 22 to reduce the load of the cylinder 20 due to the gravity of the piston 22 and the arc shovel 30 and to make the friction force between the piston 22 and the ground small when reciprocating in the piston cavity. In some embodiments, the rolling mechanism includes a ball seat 32 provided on the piston 22 and a ball 32 rollingly coupled to the ball seat 32, the ball 34 rollingly coupled to the ground. It will be appreciated that the spherical surface is configured with a smooth surface to avoid scratching the ground and further reduce friction.

In some embodiments, as shown in FIG. 2, the axle position adjustment device further includes a guide structure including a bracket 52, a guide seat 54, and a guide bar 56. The support 52 is provided at a portion of the piston 22 extending out of the cylinder 20, and it is understood that the support 52 does not interfere with the rolling mechanism. The guide seat 54 is arranged on the outer surface of the cylinder body 20; the longitudinal extension direction of the guide rod 56 is parallel to the axis of the piston 22, and one end of the guide rod 56 is fixedly connected to the support 52, while the other end is slidably connected to the guide seat 54. Further, the guide holder 54 is provided with a guide hole, and one end of the guide rod 56 passes through the guide hole and is slidably connected with the guide holder 54 through the guide hole. By providing the guide structure, one end of the guide rod 56 slides in the guide hole at the same time when the piston 22 reciprocates in the piston chamber, so that the reciprocation of the piston 22 is smoother.

In some embodiments, as shown in fig. 2 and 4, the axle position adjustment device further includes a first slide bar 70, a rotating arm 60, and a support structure. One end of the first slide bar 70 is connected to the cylinder 20. Further, in some embodiments, the first slide bar 70 is rigidly connected to the cylinder 20. The rotating arm 60 is connected to an end of the first slide bar 70 remote from the cylinder 20, and a center line of the rotating arm 60 is parallel to an axis of the cylinder 20. Both ends of the rotating arm 60 are rotatably connected to the support structure.

By providing a support structure, the cylinder 20 is supported. By arranging the rotatable rotating arm 60 and connecting the rotating arm 60 with the cylinder body 20 through the first sliding rod 70, when the rotating arm 60 rotates, the first sliding rod 70 can rotate around the center line of the rotating arm 60, so that the cylinder body 20 rotates to change the position of the cylinder body 20, and the use requirements under different states are met. For example, to facilitate the user's operation of the position adjustment device and to facilitate viewing of the vehicle's axle and wheels, a support structure may be provided on one side of the trench for vehicle maintenance, when the user adjusts the axle position, the vehicle is parked in the appropriate position on the ground above the trench, the rotating arm 60 is rotated to parallel the first slide bar 70 to the ground, the cylinder 20 is located between the wheels of the center bridge 10 and the wheels of the rear bridge 12, the power mechanism 40 is operated, the piston 22 is moved out of the piston cavity and the wheels to be adjusted are pushed by the arc shovel 30, and the axle position adjustment device is in operation; when the vehicle is required to be moved to park or leave the position, the rotating arm 60 is rotated until the first slide bar 70 is perpendicular to the ground, so that the cylinder 20 and the arc shovel 30 are no longer positioned in the space between the chassis of the vehicle and the ground, the movement of the vehicle is facilitated, and the axle position adjusting device is in a non-working state.

In some embodiments, the first sliding rod 70 is slidably connected to the rotating arm 60, so that the cylinder 20 can move along with the first sliding rod 70 along the axial direction of the first sliding rod 70, so that in the working state of the axle position adjusting device, the position of the cylinder 20 is adjusted by moving the first sliding rod 70, and the contact surface of the arc shovel 30 is aligned with the corresponding wheel. Further, in some embodiments, as shown in fig. 2 and 4, the rotating arm 60 is provided with a through hole, through which the first slide bar 70 is slidably connected with the rotating arm 60.

In some embodiments, as shown in fig. 4, a handle 72 is provided at an end of the first slide bar 70 remote from the cylinder 20, so that a user can operate the first slide bar 70 to slide in the through hole of the rotating arm 60 or rotate around the center line of the rotating arm 60.

In some embodiments, as shown in fig. 4, the first slide bar 70 includes a first slide bar body and a stop 74. The first sliding rod body is slidably connected with the rotating arm 60, the limiting portion 74 is arranged on the first sliding rod body, and the rotating arm 60 can be abutted against the limiting portion 74. In some embodiments, the limiting portion 74 is configured to be annular and disposed around an outer surface of the first sliding rod body. By arranging the limiting part 74, when the first sliding rod 70 is perpendicular to the ground, the rotating arm 60 is abutted against the limiting part 74, so that the rotating arm 60 is prevented from directly contacting with the cylinder 20 or colliding with the cylinder 20 to cause surface damage of the cylinder 20.

In some embodiments of the present application, as shown in fig. 2-4, the support structure includes two second slide bars 90, guide ribs 80, and a first support plate 88. Two ends of the rotating arm 60 are respectively and rotatably connected to one end of one second sliding rod 90, the two second sliding rods 90 are parallel to each other, and the other ends of the two second sliding rods 90 are in sliding connection with the guide rib plates 80; the first support plate 88 is disposed in parallel with the second slide bar 90, and the guide rib 80 is disposed on the first support plate 88. By providing the first support plate 88, the axle position adjustment device can be secured to a flat surface, such as a side wall of a trench, by the first support plate 88. By providing two second slide bars 90 slidably connected to the guide rib 80, the rotating arm 60 connected to one end of the second slide bar 90 can move along with the second slide bar 90 in the axial direction of the second slide bar 90, and since the rotating arm 60 is also connected to the first slide bar 70, the distance between the cylinder 20 connected to the first slide bar 70 and the ground where the vehicle is parked can be adjusted. For example, in the operating state of the axle position adjusting device, the second slide bar 90 is moved to bring the piston 22 into contact with the ground through the rolling mechanism; in the inactive condition, the second slide bar 90 is moved downwardly, causing the cylinder block 20 and the first slide bar 70 to also move downwardly and adjacent the support plate assembly, resulting in a reduced footprint for the axle position adjustment device when not in use.

In some embodiments, the support structure further includes a lock 84. The locking member 84 is provided on the first support plate 88 to lock the second slide bar 90.

In some embodiments, as shown in fig. 2-4, the second slide bar 90 includes a second slide bar body and a swivel arm mount. The second slide bar body is connected to the guide rib plate 80 in a sliding manner; the rotating arm support is arranged at one end of the second sliding rod body, which is close to the rotating arm 60, the rotating arm 60 is rotatably connected with the rotating arm support, and as shown in fig. 4, the guide rib plate 80 can be abutted against the rotating arm support. By providing the rotating arm support, when the second slide bar 90 is not locked by the locking piece 84, the guide rib 80 is abutted against the rotating arm support, so that the second slide bar 90 is prevented from falling down to cause damage to the device.

Further, in some embodiments, the rotating arm support includes a stopper and an L-shaped member, the second sliding rod 90 is welded to the stopper, the L-shaped member includes two extending portions perpendicular to each other, one extending portion is fixedly connected to the stopper, and the other extending portion is rotatably connected to the rotating arm 60.

In some embodiments, as shown in fig. 2-4, a groove is disposed on a side of the first support plate 88 away from the second slide bar 90, and the lengthwise extending direction of the groove is parallel to the axis of the cylinder 20; the support structure further comprises a second support plate 86, which is arranged on one side of the first support plate 88 away from the second slide bar 90, and the second support plate 86 is provided with a boss; the first support plate 88 is slidably coupled to the boss by a groove. In this way, the first support plate 88 can slide along the lengthwise extending direction of the groove, so that the parts connected to the first support plate 88 can move, and the cylinder 20 can move along the axis thereof to match the position of the wheels of the vehicle, thereby improving the operation convenience of the axle position adjusting device.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. An axle position adjustment device, characterized in that the axle position adjustment device comprises:

one end of the first sliding rod is connected with the cylinder body;

the rotating arm is connected to one end of the first sliding rod, which is far away from the cylinder body, and the central line of the rotating arm is parallel to the axis of the cylinder body; and

the support structure comprises two second slide bars, guide rib plates, a first support plate and a second support plate, wherein two ends of the rotating arm are respectively and rotatably connected to one end of one second slide bar, the two second slide bars are parallel to each other, the other ends of the two second slide bars are in sliding connection with the guide rib plates, the first support plate is arranged in parallel with the second slide bars, and the guide rib plates are arranged on the first support plate; a groove is formed in one side, far away from the second sliding rod, of the first supporting plate, the longitudinal extension direction of the groove is parallel to the axis of the cylinder body, the second supporting plate is arranged on one side, far away from the second sliding rod, of the first supporting plate, a boss is arranged on the second supporting plate, and the first supporting plate is connected with the boss in a sliding mode through the groove;

2. The axle position adjustment device of claim 1, further comprising a guide structure comprising:

the guide seat is arranged on the outer surface of the cylinder body;

3. The axle position adjustment device of claim 1, further comprising:

4. The axle position adjustment device of claim 1, wherein the support structure further comprises:

5. The axle position adjustment device of claim 1, wherein the second slide bar comprises:

6. The axle position adjustment device of claim 1, wherein the first slide bar is slidably coupled to the swivel arm.

7. The axle position adjustment device of claim 6, wherein the first slide bar comprises: