Abnormal-sound-free driving shaft

Abstract

The utility model relates to the technical field of automobile parts, in particular to an abnormal-sound-free driving shaft. According to the technical scheme, the device comprises an intermediate shaft, a dust cover and a connecting pipe, ball cages are arranged on the outer walls of the two ends of the intermediate shaft, the dust cover is arranged on the outer walls of the ball cages, and the connecting pipe is installed on the outer wall of one side of the dust cover in an inserted mode. Stable air pressure in the dust cover is guaranteed, and it is guaranteed that workers can know the sealing performance of the dust cover in time.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a drive shaft without abnormal noise. Background Art

[0002] The drive shaft is an important mechanical component used to transmit torque and rotational motion. It is widely used in automobiles and other mechanical equipment. In mechanical fields such as automobiles, the drive shaft plays a key role in transmitting the torque and rotational motion output by the transmission mechanism to the drive wheels.

[0003] Although the existing technology has many benefits during use, it still has the following problems: it lacks a sealing detection structure for the dust cover, which results in the staff being unable to understand the sealing of the dust cover in time; when the dust cover is damaged, dust will enter the inside of the ball cage, and foreign matter stuck inside the ball cage will cause abnormal noise when the drive shaft is working. Utility Model Content

[0004] The purpose of the present invention is to provide a drive shaft without abnormal noise to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a noise-free drive shaft, comprising an intermediate shaft, a dust cover and a connecting pipe, wherein the outer walls of both ends of the intermediate shaft are provided with ball cages, the outer walls of the ball cages are provided with dust covers, and a connecting pipe is plugged and installed on the outer wall of one side of the dust cover.

[0006] When using a noiseless drive shaft in this technical solution, the staff installs the dust cover through a clamp, and the staff connects the external air pump to the connecting pipe through a quick connector to fill the dust cover with gas, and the air pressure sensor detects the air pressure data inside the dust cover.

[0007] Preferably, a connecting shaft is mounted on the outer wall of one end of the cage, and a spline is provided on the outer wall of the connecting shaft. The connecting shaft is connected to an external device, and the spline is used for gear meshing.

[0008] Preferably, the outer walls of both sides of the dust cover are provided with clamps, and the two clamps are respectively distributed on the outer sides of the ball cage and the intermediate shaft. The clamps fix the dust cover.

[0009] Preferably, an air pressure sensor is provided on an outer wall of one side of the dust cover, and one end of the air pressure sensor is located inside the dust cover. The air pressure sensor detects air pressure data inside the dust cover.

[0010] Preferably, the connecting pipe is located at the upper end of the cage, and is communicated with the interior of the dust cover. Gas is filled into the dust cover through the connecting pipe.

[0011] Preferably, a quick-connect connector is provided on the outer wall of one end of the connecting pipe, and the quick-connect connector is located outside the dust cover. The external air pump is connected to the connecting pipe via the quick-connect connector.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention achieves the effect of detecting the sealing of the dust cover by setting an air pressure sensor, a dust cover and a connecting pipe. The staff installs the dust cover through a clamp to ensure the sealing between the dust cover and the intermediate shaft and the ball cage respectively. The staff connects the external air pump to the connecting pipe through a quick connector to fill the dust cover with gas. The air pressure sensor detects the air pressure data inside the dust cover to ensure that the air pressure inside the dust cover is stable, and ensures that the staff can understand the sealing of the dust cover in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the appearance of the intermediate shaft structure of the present utility model;

[0014] Figure 2 It is an enlarged schematic diagram of the dust cover structure of the present utility model;

[0015] Figure 3 It is a partially enlarged schematic diagram of the dust cover structure of the present invention.

[0016] In the figure: 1, intermediate shaft; 11, ball cage; 12, connecting shaft; 2, dust cover; 21, clamp; 22, connecting pipe; 23, quick connector; 24, air pressure sensor. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 3 , the utility model provides two embodiments:

[0019] Embodiment 1: A noise-free drive shaft comprises an intermediate shaft 1, a dust cover 2 and a connecting pipe 22. Ball cages 11 are provided on the outer walls of both ends of the intermediate shaft 1. Dust covers 2 are provided on the outer walls of the ball cages 11. A connecting pipe 22 is plugged and installed on the outer wall of one side of the dust cover 2.

[0020] A connecting shaft 12 is mounted on the outer wall of one end of the cage 11, and a spline is provided on the outer wall of the connecting shaft 12. The connecting shaft 12 is connected to an external device, and the spline is used for gear engagement.

[0021] The outer walls of the dust cover 2 are provided with clamps 21 on both sides, one on the outside of the cage 11 and the other on the outside of the intermediate shaft 1. The clamps 21 secure the dust cover 2. When the dust cover 2 is installed, the staff uses the clamps 21 to ensure a tight seal between the dust cover 2, the intermediate shaft 1 and the cage 11.

[0022] Embodiment 2: A noise-free drive shaft comprises an intermediate shaft 1, a dust cover 2 and a connecting pipe 22. Ball cages 11 are provided on the outer walls of both ends of the intermediate shaft 1. Dust covers 2 are provided on the outer walls of the ball cages 11. A connecting pipe 22 is plugged into and installed on the outer wall of one side of the dust cover 2.

[0023] A connecting shaft 12 is mounted on the outer wall of one end of the cage 11, and a spline is provided on the outer wall of the connecting shaft 12. The connecting shaft 12 is connected to an external device, and the spline is used for gear engagement.

[0024] The outer walls of both sides of the dust cover 2 are provided with clamps 21, and the two clamps 21 are respectively distributed on the outer sides of the ball cage 11 and the intermediate shaft 1. The clamps 21 fix the dust cover 2.

[0025] An air pressure sensor 24 is provided on the outer wall of one side of the dust cover 2. As is well known to those skilled in the art, the automotive accessory device of the present invention also requires the provision of the air pressure sensor 24 to enable it to function properly. As is well known to those skilled in the art, the provision of the air pressure sensor 24 is commonplace and is a conventional method or common knowledge. Detailed description thereof will not be given here. Those skilled in the art can select any suitable one according to their needs or convenience. One end of the air pressure sensor 24 is located inside the dust cover 2. The air pressure sensor 24 detects the air pressure data inside the dust cover 2.

[0026] The connecting pipe 22 is located at the upper end of the cage 11 and is communicated with the inside of the dust cover 2. The inside of the dust cover 2 is filled with gas through the connecting pipe 22.

[0027] A quick-connect connector 23 is provided on the outer wall of one end of the connecting tube 22, located outside the dust cover 2. An external air pump is connected to the connecting tube 22 via the quick-connect connector 23. A worker installs the dust cover 2 using the clamp 21 to ensure a seal between the dust cover 2 and the intermediate shaft 1 and the ball cage 11. The worker connects the external air pump to the connecting tube 22 via the quick-connect connector 23 to fill the dust cover 2 with air. An air pressure sensor 24 monitors the air pressure inside the dust cover 2 to ensure stable pressure inside the dust cover 2 and ensure that the worker can promptly monitor the seal of the dust cover 2.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A noise-free drive shaft comprising an intermediate shaft (1), a dust cover (2) and a connecting pipe (22), characterized in that: The outer walls of both ends of the intermediate shaft (1) are provided with ball cages (11), the outer walls of the ball cages (11) are provided with dust covers (2), and a connecting pipe (22) is plugged and installed on the outer wall of one side of the dust cover (2).

2. The noise-free drive shaft according to claim 1, characterized in that: A connecting shaft (12) is installed on the outer wall of one end of the ball cage (11), and a spline is provided on the outer wall of the connecting shaft (12).

3. The noise-free drive shaft according to claim 2, characterized in that: The outer walls of both sides of the dust cover (2) are provided with clamps (21), and the two clamps (21) are respectively distributed on the outer sides of the ball cage (11) and the intermediate shaft (1).

4. The noise-free drive shaft according to claim 3, characterized in that: An air pressure sensor (24) is provided on an outer wall of one side of the dust cover (2), and one end of the air pressure sensor (24) is located inside the dust cover (2).

5. The noise-free drive shaft according to claim 4, characterized in that: The connecting pipe (22) is located at the upper end of the ball cage (11), and the connecting pipe (22) is communicated with the interior of the dust cover (2).

6. The noise-free drive shaft according to claim 4, characterized in that: A quick-connect connector (23) is provided on the outer wall of one end of the connecting pipe (22), and the quick-connect connector (23) is located outside the dust cover (2).

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