Model vehicle axle transmission shaft structure and model vehicle axle

Abstract

The utility model belongs to the technical field of model cars, and discloses a model car axle transmission shaft structure and a model car axle, two ends of an intermediate shaft of the model car axle transmission shaft structure are respectively provided with a middle U-shaped groove, and one end of a driving shaft and one end of a driven shaft are respectively provided with an end U-shaped groove. The groove walls of the two end U-shaped grooves are arranged at the groove openings in the two sides of the two middle U-shaped grooves correspondingly, and movable gaps are formed between the groove walls of the end U-shaped grooves and the groove openings of the middle U-shaped grooves; and rotating balls are rotationally connected into the two U-shaped grooves correspondingly, and the groove walls of the two end U-shaped grooves are connected with the two rotating balls correspondingly. The model vehicle axle comprises the transmission shaft structure of the model vehicle axle. Both the driving shaft and the driven shaft can rotate relative to the intermediate shaft, and the relative rotation angle between the driving shaft and the driven shaft is larger, so that the problem of torsional vibration generated by transmission parts connected with the driving shaft and the driven shaft can be more effectively solved, and the service life of the parts can be better guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of model car technology, specifically relating to a model car axle drive shaft structure and a model car axle. Background Technology

[0002] Model cars are a type of toy car used in games to give players the feeling of driving a real car. To enable maneuvers such as turning, model cars typically use a single cross-shaped universal joint structure for the drive shaft connecting the two wheels. However, this single cross-shaped universal joint structure has the following problems in use:

[0003] 1. When the driving fork plane is in a vertical position and the cross shaft plane is perpendicular to the driving shaft axis, the driven shaft speed will be greater than the driving shaft speed.

[0004] 2. When the driving fork plane is in a horizontal position and the cross shaft plane is perpendicular to the driven shaft axis, the driven shaft speed will be less than the driving shaft speed.

[0005] In summary, the existing single cross-shaft universal joint structure operates under conditions where there is an angle between the driving shaft and the driven shaft. The angular velocities of the two shafts are not equal, which causes the transmission components connected to it to experience torsional vibration due to the relatively small rotation angle, thereby affecting the service life of these components. Utility Model Content

[0006] The purpose of this invention is to provide a model car axle drive shaft structure and a model car axle, in order to solve the problem of torsional vibration of the connected transmission components caused by the use of a single cross-shaft universal joint structure in the prior art.

[0007] The aforementioned problems exist in [the system].

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] On one hand, this utility model provides a model car axle drive shaft structure, including a drive shaft, a driven shaft, and an intermediate shaft disposed between the drive shaft and the driven shaft. Both ends of the intermediate shaft are provided with a central U-shaped groove, and one end of the drive shaft and one end of the driven shaft are provided with an end U-shaped groove. The groove walls of the two end U-shaped grooves are respectively disposed at the groove openings on both sides of the two central U-shaped grooves, and an movable gap is provided between the groove walls of the end U-shaped grooves and the groove openings of the central U-shaped grooves to facilitate the movement of the groove walls of the end U-shaped grooves. Rotating balls are rotatably connected in both U-shaped grooves, and the groove walls of the two end U-shaped grooves are respectively connected to the two rotating balls.

[0010] In a preferred embodiment of this invention, the rotating ball is rotatably connected to the walls of the U-shaped groove on both sides of the center via a first connecting shaft, and the first connecting shaft passes through the rotating ball.

[0011] As a preferred technical solution of this utility model, the two walls of the end U-shaped groove are each connected to the corresponding rotating ball by a connecting rod, and the straight line of the connecting rod is perpendicular to the straight line of the first connecting shaft.

[0012] On the other hand, this utility model also provides a model car axle, including the model car axle drive shaft structure described in any of the above claims.

[0013] Beneficial effects: This utility model changes the existing single cross-shaft universal joint structure, which is directly connected to the drive shaft and driven shaft, into a dual-shaft linkage structure by adding an intermediate shaft between the drive shaft and driven shaft, so that both the drive shaft and driven shaft can rotate relative to the intermediate shaft. This results in a larger relative rotation angle between the drive shaft and driven shaft, and thus, compared with the prior art, it can more effectively improve the problem of torsional vibration of the connected transmission components, thereby better ensuring the service life of these components. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a partial structural schematic diagram of the present invention.

[0017] In the diagram: 1-Driven shaft; 2-Driven shaft; 3-Intermediate shaft; 4-Rotating ball; 5-First connecting shaft; 6-Connecting rod. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0019] Example:

[0020] like Figures 1-3As shown, this embodiment provides a model car axle drive shaft structure, including a drive shaft 1, a driven shaft 2, and an intermediate shaft 3 disposed between the drive shaft 1 and the driven shaft 2. Both ends of the intermediate shaft 3 have a central U-shaped groove, and one end of the drive shaft 1 and one end of the driven shaft 2 have an end U-shaped groove. The groove walls of the two end U-shaped grooves are respectively disposed at the openings on both sides of the two central U-shaped grooves, and a movable gap is provided between the groove walls of the end U-shaped grooves and the openings of the central U-shaped grooves to facilitate the movement of the groove walls of the end U-shaped grooves. This allows the drive shaft 1 and the driven shaft 2 to be rotated relative to the intermediate shaft 3 at a certain angle. Rotating balls 4 are rotatably connected within each of the two U-shaped grooves, and the groove walls of the two end U-shaped grooves are respectively connected to the two rotating balls 4. In other words, the intermediate shaft 3 is rotatably connected to the drive shaft 1 and the driven shaft 2 through the rotating balls 4, thereby ensuring the stability of the drive shaft 1 and the driven shaft 2 when rotating relative to the intermediate shaft 3.

[0021] This invention modifies the existing single-cross universal joint structure, which is formed by the direct rotatable connection of the drive shaft and the driven shaft, by adding an intermediate shaft 3 between the drive shaft 1 and the driven shaft 2. This creates a dual-shaft linkage structure where both the drive shaft 1 and the driven shaft 2 can rotate relative to the intermediate shaft 3. This results in a larger relative rotation angle between the drive shaft 1 and the driven shaft 2. Compared with the prior art, this invention can more effectively improve the problem of torsional vibration in the connected transmission components, thereby better ensuring the service life of these components.

[0022] As a preferred embodiment of this invention, it should be further explained that the rotating ball 4 is rotatably connected to the groove walls on both sides of the central U-shaped groove through the first connecting shaft 5. The first connecting shaft 5 passes through the rotating ball 4. Of course, there can also be two first connecting shafts 5 connected to the two sides of the rotating ball 4 respectively. Both methods can ensure the stability and flexibility of the rotating ball 4.

[0023] As a preferred embodiment of this invention, it should be further explained that each of the two walls of the end U-shaped groove is connected to the corresponding rotating ball 4 by a connecting rod 6. The straight line of the connecting rod 6 is perpendicular to the straight line of the first connecting shaft 5, thereby ensuring that the driving shaft 1 and the driven shaft 2 have the maximum degree of freedom when rotating relative to the intermediate shaft 3.

[0024] On the other hand, this utility model also provides a model car axle, including the model car axle drive shaft structure described in any of the above embodiments, so that the axle structure used on the model car can better improve the problem of torsional vibration of the transmission components, thereby ensuring the service life of the model car.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A model car axle drive shaft structure, characterized in that, It includes a drive shaft (1), a driven shaft (2), and an intermediate shaft (3) disposed between the drive shaft (1) and the driven shaft (2). Both ends of the intermediate shaft (3) are provided with a central U-shaped groove. One end of the drive shaft (1) and one end of the driven shaft (2) are provided with an end U-shaped groove. The groove walls of the two end U-shaped grooves are respectively disposed at the groove openings on both sides of the two central U-shaped grooves. A movable gap is provided between the groove wall of the end U-shaped groove and the groove opening of the central U-shaped groove to facilitate the movement of the groove wall of the end U-shaped groove. Rotating balls (4) are rotatably connected in both U-shaped grooves. The groove walls of the two end U-shaped grooves are respectively connected to the two rotating balls (4).

2. The model car axle drive shaft structure according to claim 1, characterized in that, The rotating ball (4) is rotatably connected to the groove walls on both sides of the central U-shaped groove through the first connecting shaft (5), and the first connecting shaft (5) passes through the rotating ball (4).

3. The model car axle drive shaft structure according to claim 1, characterized in that, The two walls of the end U-shaped groove are each connected to the corresponding rotating ball (4) by a connecting rod (6), and the straight line of the connecting rod (6) is perpendicular to the straight line of the first connecting shaft (5).

4. A model car axle, characterized in that, The model vehicle axle drive shaft structure includes any one of claims 1-3.

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