A car half-shaft alignment device

Abstract

This application discloses an automotive half-shaft alignment device, comprising: a fixing frame for fixed installation to a torsion beam; a hydraulic cylinder mounted on the fixing frame and connected to an external hydraulic pump; and a push head connected to the piston rod of the hydraulic cylinder. Driven by hydraulic oil, the push head can move axially along the hydraulic cylinder to press against the half-shaft, thereby achieving half-shaft position alignment. This device uses the fixing frame to directly encircle the torsion beam, forming a rigid positioning fulcrum and reducing the risk of alignment slippage. Furthermore, pry bars, open clamps, and jacks need to be used in combination, resulting in scattered tools. This device integrates the three functions of "fulcrum-thrust-alignment" into one unit, can be carried in the vehicle, and achieves half-shaft alignment with "one set of tools, one-time alignment," making it more convenient to use.

Description

Technical Field

[0001] This utility model particularly relates to an automotive half-shaft correction device. Background Technology

[0002] In a typical automotive rear axle structure, the support frame includes a monolithic torsion beam with half-shafts mounted at both ends. One end of each half-shaft is connected to the transmission differential via a universal joint, and the other end is connected to the wheel hub via a universal joint, transmitting power from the differential to the wheels. During vehicle maintenance, if the angle between the half-shaft and the torsion beam is found to be off due to impact, welding deformation, or assembly errors, it can cause malfunctions such as vehicle vibration and abnormal bearing noise. The traditional method involves manually applying force to correct the misalignment by using a simple pry bar, open-end clamp, or jack to hold the half-shaft against the outer wall on-site. This method is extremely difficult and inefficient. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an automobile half-shaft correction device.

[0004] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0005] A vehicle half-shaft alignment device, comprising:

[0006] The mounting bracket is used for secure installation to the torsion beam;

[0007] A hydraulic cylinder is installed on the side of the fixed frame near the half shaft and connected to an external hydraulic pump;

[0008] The push head is connected to the piston rod of the hydraulic cylinder. Driven by hydraulic oil, the push head can move axially along the hydraulic cylinder to press against the half shaft and achieve half shaft position correction.

[0009] Preferably, the fixing frame includes a frame body, on which a first pressure plate and a second pressure plate are disposed opposite to each other; locking members are respectively provided on both sides of the first pressure plate, and the locking members are adjustablely connected to the second pressure plate; the first pressure plate, the second pressure plate and the locking members together constitute a locking structure for clamping and fixing the torsion beam.

[0010] Preferably, the locking element is a bolt.

[0011] Preferably, limiting grooves are formed on the opposite inner surfaces of the first and second pressure plates; the contour of the limiting grooves is adapted to the shape of the torsion beam; when the locking member is tightened to press the torsion beam between the first and second pressure plates, the limiting grooves form a circumferential positioning structure for the torsion beam.

[0012] Preferably, the lower end of the fixing frame is provided with a hydraulic cylinder mounting base for installing the hydraulic cylinder.

[0013] Preferably, after the hydraulic cylinder is installed in the hydraulic cylinder mounting base, the axial direction of the hydraulic cylinder is perpendicular to the longitudinal center line of the fixed frame.

[0014] Preferably, the hydraulic cylinder is installed on the side of the fixed frame away from the half shaft, and a chain is provided between the push head and the half shaft; when the hydraulic cylinder drives the push head to move in a direction away from the half shaft, the chain pulls the half shaft to deform it.

[0015] The beneficial effects of this utility model are:

[0016] This device uses a fixed frame to directly encircle the torsion beam, forming a rigid positioning fulcrum and reducing the risk of slippage during correction. Furthermore, pry bars, open clamps, and jacks need to be used in combination, resulting in scattered tools. This device integrates the three functions of "fulcrum-thrust-correction" into one unit, can be carried in the vehicle, and achieves half-shaft correction with "one set of tools, one-time correction," making it much more convenient to use. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a structural schematic diagram of Embodiment 1 of this application. Figure 1 ;

[0019] Figure 2 This is a structural schematic diagram of Embodiment 1 of this application. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the fixing frame in this application. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the structure of the fixing frame in this application. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the structure of the fixing frame in this application. Figure 3 ;

[0023] Figure 6 This is a structural schematic diagram of Embodiment 2 of this application. Figure 1 ;

[0024] Figure 7 This is a structural schematic diagram of Embodiment 2 of this application. Figure 2 ;

[0025] Figure 8 This is a structural schematic diagram of Embodiment 2 of this application. Figure 3 . Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0027] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0028] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0029] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0030] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0031] A vehicle half-shaft alignment device, comprising:

[0032] Fixing bracket 1 is used for fixed installation to torsion beam 1-1;

[0033] Hydraulic cylinder 2 is installed on the side of the fixed frame 1 near half shaft 2-2 and connected to an external hydraulic pump;

[0034] The push head 3 is connected to the piston rod of the hydraulic cylinder 2. Driven by hydraulic oil, the push head 3 can move along the axial direction of the hydraulic cylinder 2 to press against the half shaft 2-2 and realize the position correction of the half shaft 2-2.

[0035] Furthermore, the fixing frame 1 includes a frame body 11, on which a first pressure plate 12 and a second pressure plate 13 are disposed opposite to each other; locking members 14 are respectively disposed on both sides of the first pressure plate 12, and the locking members 14 are adjustablely connected to the second pressure plate 13; the first pressure plate 12, the second pressure plate 13 and the locking members 14 together constitute a locking structure for clamping and fixing the torsion beam 1-1.

[0036] Furthermore, the locking element 14 is a bolt.

[0037] Furthermore, limiting grooves 4 are correspondingly formed on the inner surfaces of the first pressure plate 12 and the second pressure plate 13; the contour of the limiting grooves 4 is adapted to the shape of the torsion beam 1-1; when the locking member 14 is tightened to press the torsion beam 1-1 against the first pressure plate 12 and the second pressure plate 13, the limiting grooves 4 form a circumferential positioning structure for the torsion beam 1-1.

[0038] Furthermore, the lower end of the fixing frame 1 is provided with a hydraulic cylinder mounting seat 5 for installing the hydraulic cylinder 2.

[0039] Furthermore, after the hydraulic cylinder 2 is installed on the hydraulic cylinder mounting base 5, the axial direction of the hydraulic cylinder 2 is set perpendicular to the longitudinal center line of the fixed frame 1.

[0040] Furthermore, the hydraulic cylinder 2 is installed on the side of the fixed frame 1 away from the half shaft 2-2, and a chain 6 is provided between the push head 3 and the half shaft 2-2; when the hydraulic cylinder 2 drives the push head 3 to move in a direction away from the half shaft 2-2, the chain 6 pulls the half shaft 2-2 to deform it.

[0041] The working principle of this utility model is as follows:

[0042] like Figure 4-6 As shown, this is a schematic diagram of the structure of the fixed frame 1. The fixed frame 1 is fixed on the torsion beam 1-1. A hydraulic cylinder 2 is connected to the lower end of the fixed frame 1. The piston rod of the hydraulic cylinder 2 is connected to a push head 3. The hydraulic cylinder 2 is connected to an external hydraulic pump. When the external hydraulic pump pumps oil into the hydraulic cylinder 2, the push head 3 moves along the axial direction of the hydraulic cylinder 2. The push head 3 presses against the half shaft 2-2. The half shaft 2-2 deforms under the action of the push head 3, thereby correcting the position of the half shaft 2-2.

[0043] Based on the above technical solution, as Embodiment 1, the rigid connection and fixation between the torsion beam 1-1 and the fixing frame 1 can be achieved through a combination of the frame body 11, the first pressure plate 12, and the second pressure plate 13. During installation, the first pressure plate 12 and the second pressure plate 13 are placed on both sides of the torsion beam 1-1, and then one end of the locking member 14 is connected to the first pressure plate 12 and the second pressure plate 13, respectively. Figure 1-2As shown, the first pressure plate 12 and the second pressure plate 13 press against both sides of the torsion beam 1-1, and the locking member 14, the first pressure plate 12, and the second pressure plate 13 together form a locking structure for clamping and fixing the torsion beam 1-1. In Embodiment 1, the locking member 14 can be implemented using bolts. In this technical solution, to prevent relative sliding of the torsion beam 1-1 between the first pressure plate 12 and the second pressure plate 13, a limiting groove 4 is correspondingly provided on the opposite inner surfaces of the first pressure plate 12 and the second pressure plate 13. The contour of the limiting groove 4 is adapted to the shape of the torsion beam 1-1. When the locking member 14 is tightened to press the torsion beam 1-1 against the first pressure plate 12 and the second pressure plate 13, the limiting groove 4 forms a surface contact with the outer wall of the torsion beam 1-1, achieving circumferential positioning.

[0044] Based on the above technical solution, the hydraulic cylinder mounting base 5 is installed at the lower end of the frame 11, and the axial direction of the hydraulic cylinder 2 is set perpendicular to the longitudinal center line of the fixed frame 1. Most of the thrust is transmitted along the half shaft 2-2, the elastic deformation of the torsion beam 1-1 approaches zero, and the fulcrum position 3-3 remains unchanged before and after correction, thus ensuring the stability of the correction benchmark.

[0045] This device uses a fixed frame 1 to directly encircle the torsion beam 1-1, forming a rigid positioning fulcrum and reducing the risk of correction slippage. In addition, pry bars, open clamps, and jacks need to be used in combination, resulting in scattered tools. This device integrates the three functions of "fulcrum-thrust-correction" into one unit, can be carried in the vehicle, and achieves half-shaft 2-2 correction with "one set of tools, one-time correction," making it more convenient to use.

[0046] As an example 2, such as Figure 6-8 As shown, the hydraulic cylinder 2 of this application is installed on the side of the fixed frame 1 away from the half-shaft 2-2. A chain 6 is provided between the push head 3 and the half-shaft 2-2. When the hydraulic cylinder 2 drives the push head 3 to move away from the half-shaft 2-2, because there is a chain 6 between the push head 3 and the half-shaft 2-2, the chain 6 will pull the half-shaft 2-2 to deform when the push head 3 moves away from the half-shaft 2-2. The deformation direction here is opposite to the deformation direction in Embodiment 1. The end of the chain 6 can be directly wrapped and tied to the correction part of the half-shaft 2-2 so that the chain 6 can pull the half-shaft 2-2 to deform.

[0047] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A vehicle half-shaft alignment device, characterized in that, include: A fixing bracket (1) is used for fixing and installing to the torsion beam (1-1); A hydraulic cylinder (2) is installed on the side of the fixed frame (1) near the half shaft (2-2) and connected to an external hydraulic pump; The push head (3) is connected to the piston rod of the hydraulic cylinder (2). Driven by hydraulic oil, the push head (3) can move along the axial direction of the hydraulic cylinder (2) to press against the half shaft (2-2) and realize the position correction of the half shaft (2-2).

2. The automobile half-shaft alignment device according to claim 1, characterized in that, The fixing frame (1) includes a frame body (11), on which a first pressure plate (12) and a second pressure plate (13) are arranged opposite to each other; locking members (14) are respectively provided on both sides of the first pressure plate (12), and the locking members (14) are adjustablely connected to the second pressure plate (13); the first pressure plate (12), the second pressure plate (13) and the locking members (14) together constitute a locking structure for clamping and fixing the torsion beam (1-1).

3. The automobile half-shaft alignment device according to claim 2, characterized in that, The locking element (14) is a bolt.

4. The automobile half-shaft alignment device according to claim 2, characterized in that, Limiting grooves (4) are correspondingly provided on the inner surfaces of the first pressure plate (12) and the second pressure plate (13); the outline of the limiting groove (4) is adapted to the shape of the torsion beam (1-1); when the locking member (14) is tightened to press the torsion beam (1-1) between the first pressure plate (12) and the second pressure plate (13), the limiting groove (4) forms a circumferential positioning structure for the torsion beam (1-1).

5. The automobile half-shaft alignment device according to claim 2, characterized in that, The lower end of the fixed frame (1) is provided with a hydraulic cylinder mounting seat (5) for installing the hydraulic cylinder (2).

6. The automobile half-shaft alignment device according to claim 5, characterized in that, After the hydraulic cylinder (2) is installed on the hydraulic cylinder mounting base (5), the axial direction of the hydraulic cylinder (2) is perpendicular to the longitudinal center line of the fixed frame (1).

7. The automobile half-shaft alignment device according to claim 1, characterized in that, The hydraulic cylinder (2) is installed on the side of the fixed frame (1) away from the half shaft (2-2), and a chain (6) is provided between the push head (3) and the half shaft (2-2); when the hydraulic cylinder (2) drives the push head (3) to move in a direction away from the half shaft (2-2), the chain (6) pulls the half shaft (2-2) to deform it.

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