Cross universal joint transmission shaft with damping assembly

Abstract

The utility model discloses a cross universal joint transmission shaft with a damping assembly, and relates to the technical field of transmission shafts, the cross universal joint transmission shaft comprises a universal shaft main body and a first shaft tube, one end of the universal shaft main body is fixedly connected with a sliding fork, one end of the first shaft tube close to the universal shaft main body is provided with a welding fork matched with the sliding fork, and the first shaft tube is provided with a damping assembly. A shaft tube rubber assembly is arranged on the outer surface of the end, close to the universal shaft body, of the first shaft tube. A traditional steel axle tube is replaced by the axle tube rubber assembly, vibration and noise can be absorbed through the axle tube rubber assembly, NVH performance is improved, noise, vibration and sound vibration roughness in a transmission system are reduced, driving comfort is improved, flexible connection can be formed through the axle tube rubber assembly, impact load and vibration can be relieved, and the service life of the axle tube rubber assembly is prolonged. And meanwhile, the shaft tube rubber assembly has elastic performance and can buffer the torque force of the part.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shafts, in particular to a cross universal joint transmission shaft with a damping component. Background Art

[0002] A universal joint drive shaft is a mechanical device used to achieve vehicle power transmission. It is mainly composed of a universal joint and a drive shaft. It is a mechanical device that can achieve variable-angle power transmission. It can transmit the torque generated by the engine to the drive axle, thereby enabling the car to generate driving power. The universal joint drive shaft is mainly composed of a universal joint and multiple connecting shafts, among which the universal joint is a rotating connection device that allows the connecting shaft to rotate in any direction; and each connecting shaft has a certain length, and its length can change with the movement of the vehicle.

[0003] There are many types of universal joint drive shafts, such as cross universal joint drive shafts, etc. The cross universal joint drive shaft is also called a cross universal shaft or a cross universal joint. It is one of the most important transmission devices in vehicles or other mechanical equipment. The cross universal joint drive shaft is a mechanical component that can realize variable-angle power transmission. It is mainly used to connect the power transmitted by the vehicle engine and the power of the wheels or other working mechanisms, so that it can rotate at different angles and directions. In short, the cross universal joint drive shaft is one of the indispensable transmission devices in modern mechanical equipment and vehicles.

[0004] Currently, when installing the cross-joint drive shaft, all related parts need to be cleaned first to remove oil and impurities on the surface, and then the needle bearing is installed into the bearing shell and the bearing cover is installed to ensure that it is installed in place and tightened reliably. Then, special tools are used to install the cross shaft to complete the installation of the cross-joint drive shaft.

[0005] However, during the use of the cross-joint drive shaft, it is affected by various factors, such as imbalance, impact, etc., which produces greater vibrations, which will directly lead to an increase in noise, thereby affecting driving comfort and the quietness of the surrounding environment. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a cross-joint transmission shaft with a damping assembly to solve the technical problem that during the use of the cross-joint transmission shaft, due to the influence of various factors such as imbalance, impact, etc., it produces large vibrations, which directly leads to an increase in noise, thereby affecting driving comfort and the quietness of the surrounding environment.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cross universal joint transmission shaft with a damping assembly, comprising a universal shaft body and a first shaft tube, one end of the universal shaft body is fixedly connected with a sliding fork, an end of the first shaft tube close to the universal shaft body is provided with a welding fork that matches the sliding fork, and an outer surface of the end of the first shaft tube close to the universal shaft body is provided with a shaft tube rubber assembly.

[0008] By adopting the above technical solution, the axle tube rubber assembly replaces the traditional steel axle tube, which can absorb vibration and noise, reduce noise, vibration and acoustic roughness in the transmission system, thereby improving driving comfort, and a flexible connection can be formed through the axle tube rubber assembly to alleviate impact loads and vibrations.

[0009] The utility model is further configured such that a second shaft tube is arranged at one end of the first shaft tube away from the universal shaft body, and a plurality of support rings are arranged between the first shaft tube and the second shaft tube.

[0010] By adopting the above technical solution, the bending of the drive shaft can be reduced by the support ring, thereby preventing bending vibration.

[0011] The utility model is further configured that the sliding fork and the welding fork are connected via a cross-joint.

[0012] By adopting the above technical solution, the cross-shaped connection method allows the sliding fork and the welding fork to move relative to each other in multiple directions, thereby providing greater transmission flexibility and adaptability.

[0013] The utility model is further configured that a blocking cover is provided at one end of the second shaft tube away from the first shaft tube.

[0014] By adopting the above technical solution, one end of the second shaft tube can be tightly sealed, effectively preventing foreign matter such as dust, moisture, oil and the like from invading the interior of the second shaft tube, protecting internal parts from contamination and damage, thereby extending service life.

[0015] The utility model is further configured such that the second shaft tube and the plugging cover are connected via a connecting gear sleeve.

[0016] By adopting the above technical solution, the design of the connecting gear sleeve enables the second shaft tube and the plug cover to be accurately positioned when connected, ensuring the accuracy and stability of the transmission system.

[0017] The utility model is further configured that the axle tube rubber component is vulcanized twice.

[0018] By adopting the above technical solution, the adhesion between rubber and metal parts can be enhanced, ensuring that the rubber is firmly bonded to the inner tube and the outer tube.

[0019] The utility model is further configured such that the first shaft tube and the second shaft tube fit together.

[0020] The adoption of the above technical solution helps to achieve smooth movement, reduce vibration and noise caused by the transmission process, and improve the stability of the overall transmission.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] The utility model replaces the traditional steel axle tube with a axle tube rubber assembly, so that vibration and noise can be absorbed by the axle tube rubber assembly, the NVH performance can be improved, the noise, vibration and acoustic roughness in the transmission system can be reduced, and thus driving comfort can be improved; a flexible connection can be formed by the axle tube rubber assembly to alleviate impact loads and vibrations, and the axle tube rubber assembly also has elastic properties to buffer this part of the torque force. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the planar structure of the utility model;

[0024] Figure 2 This is a detailed diagram of the sliding fork of the utility model;

[0025] Figure 3 For this utility model Figure 1 A magnified view of the structure in the middle.

[0026] In the figure: 1. Cardan shaft body; 2. Sliding fork; 3. First shaft tube; 4. Welding fork; 5. Connecting gear sleeve; 6. Cross; 7. Shaft tube rubber assembly; 8. Support ring; 9. Second shaft tube; 10. Plug cover. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] A cross universal joint transmission shaft with a damping component, such as Figure 1-3As shown, it includes a universal joint shaft body 1 and a first shaft tube 3, a sliding fork 2 is fixedly connected to one end of the universal joint shaft body 1, and a welding fork 4 matching with the sliding fork 2 is arranged near one end of the first shaft tube 3 close to the universal joint shaft body 1, wherein the sliding fork 2 and the welding fork 4 are connected by a cross 6, so that the sliding fork 2 and the welding fork 4 can move relative to each other in multiple directions, thereby providing greater transmission flexibility and adaptability, and facilitating better use of the cross universal joint transmission shaft.

[0030] Then, a shaft tube rubber component 7 is provided on the outer surface of one end of the first shaft tube 3 close to the universal shaft body 1, so that a flexible connection can be formed at the shaft tube rubber component 7 to alleviate impact loads and vibrations. At the same time, the shaft tube rubber component 7 adds a rubber sleeve and a damping element at the first shaft tube 3 or the joint to absorb vibration and noise, reduce noise, vibration and acoustic roughness in the transmission system, thereby improving driving comfort. The shaft tube rubber component 7 is vulcanized twice to enhance the adhesion between rubber and metal parts and ensure that the rubber is firmly bonded to the inner tube and the outer tube.

[0031] A second shaft tube 9 is further arranged at one end of the first shaft tube 3 away from the universal shaft body 1, and the first shaft tube 3 and the second shaft tube 9 are firmly bonded by rubber, which can reduce vibration and noise caused by friction and improve the stability of the overall transmission. A plurality of support rings 8 are arranged between the first shaft tube 3 and the second shaft tube 9 to reduce the bending of the first shaft tube 3 and prevent bending vibration.

[0032] At the same time, a plugging cover 10 is provided at the end of the second shaft tube 9 away from the first shaft tube 3, which can tightly seal one end of the second shaft tube 9, thereby protecting the parts inside the second shaft tube 9 and extending its service life. The second shaft tube 9 and the plugging cover 10 are connected by a connecting gear sleeve 5, which can accurately locate the position between the second shaft tube 9 and the plugging cover 10, thereby ensuring the accuracy and stability of the transmission system.

[0033] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A cross universal joint transmission shaft with a damping assembly, comprising a universal shaft body (1) and a first shaft tube (3), one end of the universal shaft body (1) being fixedly connected to a sliding fork (2), and an end of the first shaft tube (3) close to the universal shaft body (1) being provided with a welding fork (4) that fits with the sliding fork (2), characterized in that: A shaft tube rubber component (7) is provided on the outer surface of one end of the first shaft tube (3) close to the universal shaft body (1).

2. A cross-joint transmission shaft with a damping assembly according to claim 1, characterized in that: A second shaft tube (9) is arranged at one end of the first shaft tube (3) away from the cardan shaft body (1), and a plurality of support rings (8) are arranged between the first shaft tube (3) and the second shaft tube (9).

3. The cross universal joint transmission shaft with a damping assembly according to claim 1, characterized in that: The sliding fork (2) and the welding fork (4) are connected via a crossbar (6).

4. A cross-joint transmission shaft with a damping assembly according to claim 2, characterized in that: A blocking cover (10) is provided at one end of the second shaft tube (9) away from the first shaft tube (3).

5. A cross-joint transmission shaft with a damping assembly according to claim 4, characterized in that: The second shaft tube (9) and the plug cover (10) are connected via a connecting gear sleeve (5).

6. A cross universal joint transmission shaft with a damping assembly according to claim 1, characterized in that: The shaft tube rubber component (7) is vulcanized twice.

7. A cross-joint transmission shaft with a damping assembly according to claim 2, characterized in that: The first shaft tube (3) and the second shaft tube (9) fit together.

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