Seamless steel tube for automobile transmission shaft

Abstract

The utility model discloses a seamless steel tube for an automobile transmission shaft, which comprises a steel tube, rubber, a circular ring and a connecting arc plate, universal joints are welded at two ends of the steel tube, the rubber is fixedly connected on the outer side of the steel tube, the circular ring is fixedly connected on the rubber, and the connecting arc plate is welded at the side end of the circular ring. According to the seamless steel pipe for the automobile transmission shaft, generated noise is absorbed through the sponge arranged in the steel pipe, then the sponge is used in cooperation with the dynamic balance fixing block, shaking generated by the steel pipe is reduced, and dynamic balance is kept in the whole rotating process of the steel pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipes, in particular to a seamless steel pipe for automobile transmission shafts. Background Art

[0002] The drive shaft of a car needs to have higher strength, so it is generally made of seamless steel pipes. The seamless steel pipe is made of a whole piece of round steel and there is no weld on the surface. Therefore, compared with ordinary steel pipes, seamless steel pipes have better sealing and higher strength.

[0003] Heavy-loaded vehicles often travel on harsh roads. In order to protect the drive shaft during driving, they should try to minimize sudden clutch lifting, high-speed starting, and severe overloading conditions. In particular, sudden clutch lifting at low speed and high throttle will not only damage the drive shaft, but also cause slight deformation of the drive shaft steel tube, and severe vibration of the drive shaft, resulting in large up and down jumps, bending of the drive shaft, and swinging of the drive shaft, causing the whole vehicle to shake. During the driving of the whole vehicle, people can hear a very obvious periodic noise or vibration from the chassis, which becomes more intense as the vehicle speed increases. In severe cases, the body shakes, and the rotational imbalance of the drive shaft tube increases after bending. When continuing to rotate, the centrifugal force will also increase. The critical speed of the drive shaft will be designed to be high, but the bending of the drive shaft will cause the destruction of dynamic balance, which will reduce the speed of the drive shaft, which can easily lead to resonance between the drive shaft and the whole vehicle, and often cause the drive shaft to break in severe cases.

[0004] Therefore, the utility model provides a seamless steel pipe for automobile transmission shaft to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a seamless steel pipe for an automobile transmission shaft, which solves the above problems.

[0006] To achieve the above purpose, the utility model is implemented through the following technical scheme: a seamless steel pipe for automobile transmission shaft, including a steel pipe, with universal joints welded at both ends of the steel pipe, and also including rubber, a ring and a connecting arc plate, the rubber is fixedly connected to the outside of the steel pipe, the ring is fixedly connected to the rubber, and the connecting arc plate is welded to the side end of the ring.

[0007] Preferably, a dynamic balancing fixing block is welded to the outer side of the steel pipe.

[0008] Preferably, a sponge is provided inside the steel pipe.

[0009] Preferably, two circular plates are welded to the steel pipe.

[0010] Preferably, the side end of the circular plate away from the universal joint is in contact with the steel pipe and the sponge.

[0011] Preferably, the surfaces of the steel pipe, universal joint, dynamic balancing fixing block, circular ring, connecting arc plate and circular plate are all provided with an anti-corrosion coating.

[0012] Beneficial Effects

[0013] The utility model provides a seamless steel pipe for automobile transmission shaft. Compared with the prior art, it has the following beneficial effects:

[0014] (1) A seamless steel pipe for an automobile transmission shaft absorbs noise generated by a sponge disposed inside the steel pipe. The sponge is then used in conjunction with a dynamic balancing fixed block to reduce vibration generated by the steel pipe itself, thereby maintaining dynamic balance during the overall rotation of the steel pipe.

[0015] (2) A seamless steel tube for automobile transmission shafts, which is fixed by the radius of the circular ring and fixed to the other circular rings by connecting arc plates, and is combined with rubber to reduce vibration, thereby reducing the vibration amplitude at both ends of the steel tube, and then using circular plates to prevent the position of the circular ring from shifting during vibration.

[0016] (3) A seamless steel pipe for automobile transmission shaft, wherein an anti-corrosion coating is provided on the surface of the steel pipe, universal joint, dynamic balance fixing block, circular ring, connecting arc plate and circular plate to prevent the weight change of some components from being reduced due to corrosion and wear, thereby destroying the dynamic balance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view of the overall structure of the utility model;

[0018] Figure 2 It is a front view of the overall structure of the utility model;

[0019] Figure 3 It is an AA sectional view of the utility model.

[0020] In the figure: 1. steel pipe; 2. universal joint; 3. dynamic balancing fixing block; 4. sponge; 5. rubber; 6. ring; 7. connecting arc plate; 8. circular plate. DETAILED DESCRIPTION

[0021] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] See also Figure 1-3A seamless steel pipe for an automobile transmission shaft comprises a steel pipe 1, universal joints 2 are welded at both ends of the steel pipe 1, a rubber 5, a ring 6 and a connecting arc plate 7, the rubber 5 is fixedly connected to the outside of the steel pipe 1, the ring 6 is fixedly connected to the rubber 5, and the connecting arc plate 7 is welded to the side end of the ring 6.

[0024] A dynamic balancing fixing block 3 is welded to the outside of the steel pipe 1 .

[0025] A sponge 4 is arranged inside the steel pipe 1 .

[0026] Two circular plates 8 are welded to the steel pipe 1 .

[0027] The side end of the circular plate 8 away from the universal joint 2 is in contact with the steel pipe 1 and the sponge 4 .

[0028] The surfaces of the steel pipe 1, the universal joint 2, the dynamic balancing fixing block 3, the circular ring 6, the connecting arc plate 7 and the circular plate 8 are all provided with an anti-corrosion coating.

[0029] Working principle: When the car is driving, the transmission shaft rotates. When the car encounters an uneven position, the steel pipe 1 rotates as a whole and the front and rear ends of the steel pipe 1 shift up and down, causing the steel pipe 1 to vibrate as a whole. During the long-term vibration process, noise is generated, and the sponge 4 arranged inside the steel pipe 1 absorbs the noise. Secondly, the sponge 4 is used in conjunction with the dynamic balancing fixed block 3 to reduce the vibration of the steel pipe 1 itself, thereby maintaining dynamic balance during the overall rotation of the steel pipe 1.

[0030] When the steel pipe 1 vibrates, due to the long length of the steel pipe 1 and the slight difference in vibration amplitude at both ends of the steel pipe 1, a slight bend is caused between the two ends of the steel pipe 1. The radius of the circular ring 6 is fixed and fixed to the other circular rings 6 by connecting the arc plate 7, and the rubber 5 is used to reduce vibration, thereby weakening the vibration amplitude at both ends of the steel pipe 1. The circular plate 8 is then used to prevent the circular ring 6 from shifting in position during vibration.

[0031] When the car passes through moisture or the transmission shaft is corroded due to other factors, an anti-corrosion coating is provided on the surface of the steel pipe 1, the universal joint 2, the dynamic balance fixing block 3, the ring 6, the connecting arc plate 7 and the circular plate 8 to prevent the dynamic balance from being destroyed due to the reduction of the weight change of some components due to corrosion and wear.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seamless steel pipe for an automobile transmission shaft, comprising a steel pipe (1), wherein both ends of the steel pipe (1) are welded with universal joints (2), characterized in that: It also includes rubber (5), a circular ring (6) and a connecting arc plate (7), wherein the rubber (5) is fixedly connected to the outside of the steel pipe (1), the circular ring (6) is fixedly connected to the rubber (5), and the connecting arc plate (7) is welded to the side end of the circular ring (6).

2. The seamless steel pipe for automobile transmission shaft according to claim 1, characterized in that: A dynamic balancing fixing block (3) is welded to the outer side of the steel pipe (1).

3. The seamless steel tube for automobile transmission shaft according to claim 1, characterized in that: A sponge (4) is arranged inside the steel pipe (1).

4. The seamless steel pipe for automobile transmission shaft according to claim 1, characterized in that: Two circular plates (8) are welded to the steel pipe (1).

5. The seamless steel pipe for automobile transmission shaft according to claim 4, characterized in that: The side end of the circular plate (8) away from the universal joint (2) is in contact with the steel pipe (1) and the sponge (4).

6. The seamless steel pipe for automobile transmission shaft according to claim 5, characterized in that: The surfaces of the steel pipe (1), the universal joint (2), the dynamic balancing fixed block (3), the circular ring (6), the connecting arc plate (7) and the circular plate (8) are all provided with an anti-corrosion coating.

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