Trailer axle

Abstract

The utility model relates to the technical field of trailers, and provides a trailer axle which comprises an axle body, threaded shafts are arranged at the two opposite ends of the axle body, screwing fixing assemblies are arranged at the two ends of the axle body, and movable autorotation assemblies are arranged at the two ends of the axle body. The screwing fixing assembly comprises a positioning shaft, the positioning shaft is arranged on the end face of the shaft body, a connecting shaft is arranged on the side wall of the positioning shaft, the end face of the connecting shaft is connected with the threaded shaft, a wheel sleeve is inserted into the connecting shaft, a limiting sleeve is arranged in the wheel sleeve, the connecting shaft is sleeved with the limiting sleeve, a receding groove is formed in the limiting sleeve, and the receding groove is formed in the limiting sleeve along the circumference. By means of the technical scheme, the problems that in the prior art, parts, connected with wheels, of the two ends of an axle often need to be frequently repaired and maintained after being used, and a common axle is extremely troublesome to replace and disassemble and difficult to install are solved.

Description

Technical Field

[0001] This utility model relates to the field of trailer technology, specifically to a trailer axle. Background Technology

[0002] An axle, a cylindrical component that passes through the hub and bears the weight of the vehicle, is one of the three major running gear components of trains, light rail, subways, automobiles, and transport vehicles. It is a shaft that transmits power between the main reducer (differential) and the drive wheels. Most axles are solid. The main technical parameters, technical requirements, test methods, inspection rules, markings, and accompanying documents for trailer axles are crucial. As a key component of a trailer, the axle determines its load-bearing capacity, braking performance, and driving efficiency, and also affects the vehicle's uptime, safety performance, and even economic benefits. Therefore, choosing trailers equipped with high-quality trailer axles is essential for both individual owners and large fleet operations. In vehicle assembly, bearings are added to both ends of the axle, and then wheels are added. The axle is connected to the frame through the suspension and has wheels mounted at both ends. Its function is to transmit forces in all directions between the frame and the wheels.

[0003] In actual use, the parts of the axle that connect to the wheels at both ends often require frequent repair and maintenance after use. The replacement and disassembly of commonly used axles are extremely troublesome and difficult to install. Therefore, a trailer axle was developed. Utility Model Content

[0004] This utility model proposes a trailer axle that solves the problem in related technologies that the parts connecting the wheels at both ends of the axle often require frequent repair and maintenance after use, and that replacing and disassembling commonly used axles is extremely troublesome and difficult to install.

[0005] The technical solution of this utility model is as follows: including...

[0006] A shaft body, wherein threaded shafts are provided at opposite ends of the shaft body;

[0007] A screw-and-fix assembly is disposed at both ends of the shaft;

[0008] A movable rotating component is disposed at both ends of the shaft;

[0009] The screwing and fixing assembly includes a positioning shaft, which is disposed on the end face of the shaft body. A connecting shaft is disposed on the side wall of the positioning shaft. The end face of the connecting shaft is connected to the threaded shaft. A wheel sleeve is inserted on the connecting shaft. A limit sleeve is disposed inside the wheel sleeve. The limit sleeve is fitted on the connecting shaft. A clearance groove is opened in the limit sleeve. The clearance groove is opened around the circumference of the limit sleeve.

[0010] As a further technical solution, a locking cap is provided inside the wheel sleeve, a positioning hole is opened inside the locking cap, a locking thread is provided on the inner surface of the positioning hole, the locking thread engages with the threaded shaft, and a cross drive hole is opened on the end face of the locking cap.

[0011] As a further technical solution, the movable rotation component includes a movable groove, which is opened on the end face of the shaft. A rotation shaft is disposed inside the movable groove, and a rotation wheel is fitted on the rotation shaft. A portion of the rotation wheel extends out of the movable groove.

[0012] As a further technical solution, the end face of the shaft is provided with a positioning inclined surface, and the inner surface of the wheel sleeve is provided with a positioning inclined groove, and the positioning inclined surface and the positioning inclined groove are fitted together.

[0013] As a further technical solution, the rotating wheel is in contact with the side wall of the limiting sleeve, and there are 5 rotating wheels and 5 movable slots, with multiple movable slots equidistantly opened on the end face of the shaft.

[0014] As a further technical solution, a bearing is provided in the relief groove, and the bearing is fitted with the connecting shaft.

[0015] As a further technical solution, the outer wall of the wheel sleeve has a positioning groove, and the wheel sleeve has a cylindrical structure.

[0016] As a further technical solution, the locking cap is embedded between the locking cap and the wheel sleeve, and the locking cap and the wheel sleeve are movably fitted together.

[0017] The working principle and beneficial effects of this utility model are as follows:

[0018] In this invention, a wheel sleeve is fitted onto the connecting shaft of the positioning shaft in the fixing assembly by screwing it on. The wheel sleeve has a bearing built into the limiting sleeve, which allows the wheel sleeve to be fitted onto the connecting shaft and rotate on the connecting shaft. The locking cap can be screwed onto the threaded shaft through the locking thread. At this time, the locking cap is embedded in the wheel sleeve, and one end of the locking cap abuts against the side wall of the limiting sleeve, so that the locking cap has a positioning effect on the wheel sleeve. The bearing and the rotating wheel make the rotation of the wheel sleeve smoother. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an axonometric view of the shaft body of this utility model;

[0022] Figure 3 This is a cross-sectional view of the wheel sleeve of this utility model;

[0023] In the diagram: 1. Shaft body; 2. Threaded shaft; 3. Tightening and fixing assembly; 3-1. Positioning shaft; 3-2. Connecting shaft; 3-3. Wheel sleeve; 3-4. Limiting sleeve; 3-5. Leaving groove; 3-6. Locking cap; 3-7. Positioning hole; 3-8. Locking thread; 3-9. Cross drive hole; 4. Movable rotating assembly; 4-1. Movable groove; 4-2. Rotating shaft; 4-3. Rotating wheel; 4-4. Positioning inclined surface; 4-5. Positioning inclined groove; 5. Positioning groove. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] like Figures 1-3 As shown, this embodiment proposes a trailer axle, including...

[0026] Shaft 1, with threaded shafts 2 at opposite ends;

[0027] Tightening and fixing assembly 3 is provided at both ends of shaft 1;

[0028] The movable rotation component is located at both ends of the shaft 1;

[0029] The screw-fixing assembly 3 includes a positioning shaft 3-1, which is located on the end face of the shaft body 1. A connecting shaft 3-2 is provided on the side wall of the positioning shaft 3-1. The end face of the connecting shaft 3-2 is connected to the threaded shaft 2. A wheel sleeve 3-3 is inserted into the connecting shaft 3-2. A limiting sleeve 3-4 is provided inside the wheel sleeve 3-3. The limiting sleeve 3-4 is fitted onto the connecting shaft 3-2. A relief groove 3-5 is opened inside the limiting sleeve 3-4. The relief groove 3-5 is opened around the perimeter of the limiting sleeve 3-4.

[0030] In this embodiment, a wheel sleeve 3-3 is fitted onto the connecting shaft 3-2 on the positioning shaft 3-1. The wheel sleeve 3-3 has a bearing built into the limiting sleeve 3-4, which allows the sleeve to be fitted onto the connecting shaft 3-2 and to rotate on the connecting shaft 3-2.

[0031] Specifically, the inside of the sleeve 3-3 is provided with a locking cap 3-6, the inside of the locking cap 3-6 is provided with a positioning hole 3-7, the inner surface of the positioning hole 3-7 is provided with a locking thread 3-8, the locking thread 3-8 is engaged with the threaded shaft 2, and the end face of the locking cap 3-6 is provided with a cross drive hole 3-9.

[0032] In this embodiment, the locking cap 3-6 can be screwed onto the threaded shaft 2 via the locking thread 3-8. At this time, the locking cap 3-6 is embedded in the wheel sleeve 3-3, and one end of the locking cap 3-6 abuts against the side wall of the limiting sleeve 3-4, so that the locking cap 3-6 plays a positioning role for the wheel sleeve 3-3. A screwdriver can be inserted into the cross drive hole 3-9 for screwing, which can drive the locking cap 3-6 to screw onto the threaded shaft 2.

[0033] Furthermore, the movable rotating component 4 includes a movable groove 4-1, which is opened on the end face of the shaft 1. A rotating shaft 4-2 is provided inside the movable groove 4-1, and a rotating wheel 4-3 is fitted on the rotating shaft 4-2. A part of the rotating wheel 4-3 extends out of the movable groove 4-1. A positioning inclined surface 4-4 is provided on the end face of the shaft 1, and a positioning inclined groove 4-5 is provided on the inner surface of the wheel sleeve 3-3. The positioning inclined surface 4-4 and the positioning inclined groove 4-5 are in contact. The rotating wheel 4-3 is in contact with the side wall of the limiting sleeve 3-4. There are 5 rotating wheels 4-3 and 5 movable grooves 4-1. Multiple movable grooves 4-1 are equidistantly opened on the end face of the shaft 1.

[0034] In this embodiment, the rotating shaft 4-2 on the movable groove 4-1 can make the rotating wheel 4-3 rotate. After the positioning inclined surface 4-4 and the positioning inclined groove 4-5 are attached, they play the role of positioning and assisting the movement. Positioning is achieved by the positioning inclined surface 4-4 attaching to the positioning inclined groove 4-5, so that the position of one side of the wheel sleeve 3-3 is determined.

[0035] Furthermore, a bearing is installed in the relief groove 3-5, which is fitted with the connecting shaft 3-2. The outer side wall of the wheel sleeve 3-3 has a positioning groove 5. The wheel sleeve 3-3 has a cylindrical structure. The locking cap 3-6 is embedded between the wheel sleeve 3-3 and the wheel sleeve 3-3, and the locking cap 3-6 and the wheel sleeve 3-3 are in a movable fit.

[0036] In this embodiment, the bearing is embedded in the relief groove 3-5, and the bearing plays the role of making the rotation of the wheel sleeve 3-3 smoother. This bearing has the same function as the rotating wheel 4-3.

[0037] When shaft 1 is needed, a wheel sleeve 3-3 is fitted onto the connecting shaft 3-2 on the positioning shaft 3-1. The wheel sleeve 3-3, through a bearing built into the limiting sleeve 3-4, allows the sleeve to be fitted onto the connecting shaft 3-2, enabling the sleeve to rotate on the connecting shaft 3-2. The locking cap 3-6 can be screwed onto the threaded shaft 2 via the locking thread 3-8. At this time, the locking cap 3-6 is embedded inside the wheel sleeve 3-3, and one end of the locking cap 3-6 abuts against the side wall of the limiting sleeve 3-4, thus positioning the wheel sleeve 3-3. A screwdriver can be inserted into the cross-shaped drive hole 3-9. The screwing drive can rotate the locking cap 3-6 onto the threaded shaft 2. The rotating shaft 4-2 on the movable groove 4-1 can make the rotating wheel 4-3 rotate. After the positioning inclined surface 4-4 and the positioning inclined groove 4-5 are attached, they play a role in positioning and assisting movement. Positioning is achieved by the positioning inclined surface 4-4 and the positioning inclined groove 4-5 being attached, so that the position of one side of the wheel sleeve 3-3 is determined. The bearing plays a role in making the rotation of the wheel sleeve 3-3 smoother. This bearing has the same function as the rotating wheel 4-3. The wheel sleeve 3-3 can be used to install wheels through the positioning groove 5.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A trailer axle, characterized in that, include Shaft body (1), with threaded shafts (2) provided at opposite ends of the shaft body (1); A screw-on fixing assembly (3) is provided at both ends of the shaft (1); Movable rotation component (4), the movable rotation component (4) is disposed at both ends of the shaft (1); The screw-fixing assembly (3) includes a positioning shaft (3-1), which is located on the end face of the shaft body (1). A connecting shaft (3-2) is provided on the side wall of the positioning shaft (3-1). The end face of the connecting shaft (3-2) is connected to the threaded shaft (2). A wheel sleeve (3-3) is inserted on the connecting shaft (3-2). A limiting sleeve (3-4) is provided inside the wheel sleeve (3-3). The limiting sleeve (3-4) is fitted on the connecting shaft (3-2). A relief groove (3-5) is opened in the limiting sleeve (3-4) along the circumference.

2. A trailer axle according to claim 1, characterized in that, The inside of the wheel sleeve (3-3) is provided with a locking cap (3-6), the inside of the locking cap (3-6) is provided with a positioning hole (3-7), the inner surface of the positioning hole (3-7) is provided with a locking thread (3-8), the locking thread (3-8) is engaged with the threaded shaft (2), and the end face of the locking cap (3-6) is provided with a cross drive hole (3-9).

3. A trailer axle according to claim 1, characterized in that, The movable rotation component (4) includes a movable groove (4-1), which is opened on the end face of the shaft (1). A rotation shaft (4-2) is provided inside the movable groove (4-1), and a rotation wheel (4-3) is fitted on the rotation shaft (4-2). A part of the rotation wheel (4-3) extends out of the movable groove (4-1).

4. A trailer axle according to claim 3, characterized in that, The end face of the shaft (1) is provided with a positioning inclined surface (4-4), and the inner surface of the wheel sleeve (3-3) is provided with a positioning inclined groove (4-5). The positioning inclined surface (4-4) and the positioning inclined groove (4-5) are in contact with each other.

5. A trailer axle according to claim 3, characterized in that, The rotating wheel (4-3) is in contact with the side wall of the limiting sleeve (3-4). There are 5 rotating wheels (4-3) and 5 movable grooves (4-1). The multiple movable grooves (4-1) are equidistantly opened on the end face of the shaft (1).

6. A trailer axle according to claim 1, characterized in that, A bearing is installed in the relief groove (3-5), and the bearing is fitted with the connecting shaft (3-2).

7. A trailer axle according to claim 1, characterized in that, The outer wall of the wheel sleeve (3-3) has a positioning groove (5), and the wheel sleeve (3-3) has a cylindrical structure.

8. A trailer axle according to claim 2, characterized in that, The locking cap (3-6) is fitted between the wheel sleeve (3-3) and the wheel sleeve (3-3), and the locking cap (3-6) and the wheel sleeve (3-3) are in a movable fit.

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