阅读说明：本技术 一种可规避力矩波动转向传动轴 (Steering transmission shaft capable of avoiding torque fluctuation ) 是由 王思文 吴龙八 何永攀 李叶岭 李虎 吴林 黄文俊 于 2019-10-14 设计创作，主要内容包括：本发明公开一种可规避力矩波动转向传动轴,包括半球壳体、大卡箍、防尘罩、滚珠钢球式轴杆、小卡箍、钢球、保持架、小钢球、卡簧以及内星轮,钢球位于保持架里,内星轮位于半球壳体内,滚珠钢球式轴杆的两端设有与内星轮的内花键相配合用于传递扭矩的外花键,滚珠钢球式轴杆两端的外花键与内星轮的内花键之间设有卡簧槽,卡簧安装于卡簧槽中,半球壳体和防尘罩通过大卡箍连接于一起,防尘罩和滚珠钢球式轴杆通过小卡箍相固定。本发明不仅解决转向力矩波动对整车操纵稳定性的影响,对整车安全驾驶也具有更深远的意义,而且能够提升整车的舒适性。另外本发明使用滚珠钢球式轴杆可以提供大扭矩,保证滑动顺畅及啮合间隙小等优点。(The invention discloses a steering transmission shaft capable of avoiding torque fluctuation, which comprises a hemispherical shell, a large hoop, a dust cover, a ball steel ball type shaft rod, a small hoop, a steel ball, a retainer, a small steel ball, a clamp spring and an inner star wheel, wherein the steel ball is positioned in the retainer, the inner star wheel is positioned in the hemispherical shell, two ends of the ball steel ball type shaft rod are provided with external splines matched with the internal splines of the inner star wheel for transmitting torque, a clamp spring groove is arranged between the external splines at two ends of the ball steel ball type shaft rod and the internal splines of the inner star wheel, the clamp spring is arranged in the clamp spring groove, the hemispherical shell and the dust cover are connected together through the large hoop, and the dust cover and the ball steel ball type. The invention not only solves the influence of steering torque fluctuation on the operation stability of the whole vehicle, but also has profound significance on safe driving of the whole vehicle, and can improve the comfort of the whole vehicle. In addition, the invention can provide large torque by using the ball steel ball type shaft rod, and has the advantages of smooth sliding, small meshing clearance and the like.)

1. The utility model provides a can avoid moment fluctuation steering drive shaft which characterized in that: comprises a hemispherical shell (2), a large clamp (3), a dust cover (4), a ball steel ball type shaft lever (5), a small clamp (6), a steel ball (7), a retainer (8), a small steel ball (9), a clamp spring (10) and an inner star wheel (11), the steel ball (7) is positioned in the retainer (8), the inner star wheel (11) is positioned in the hemispherical shell (2), the two ends of the ball steel ball type shaft lever (5) are provided with external splines which are matched with the internal splines of the inner star wheel (11) and are used for transmitting torque, a clamp spring groove is arranged between the external splines at the two ends of the ball steel ball type shaft lever (5) and the internal splines of the internal star wheel (11), the clamp spring (10) is arranged in the clamp spring groove, the semi-spherical shell (2) and the dust cover (4) are connected together through a large hoop (3), and the dust cover (4) and the ball steel ball type shaft lever (5) are fixed through a small hoop (6).

2. The evasive torque ripple steering transmission shaft of claim 1, wherein: a retainer is also arranged in the ball steel ball type shaft lever (5), and the small steel ball (9) is positioned in the retainer.

The technical field is as follows:

the invention relates to a steering transmission shaft capable of avoiding torque fluctuation, and belongs to the technical field of automobile steering systems.

Background art:

the existing automobile steering transmission shaft has the following functions: the steering transmission shaft is a bridge for connecting a steering column and a steering engine, is a key part for transmitting force and absorbing external unfavorable excitation, and most of automobile steering transmission shafts are in an upper and lower cross joint fork structure form. For the front axle with heavy load, the above process is not always satisfactory, and a ball steel ball type shaft type steering transmission shaft is required to provide high torque.

The existing steering transmission shaft uses a universal joint in a cross shaft joint fork form, and because of the unequal speed of a cross shaft, the moment fluctuation of a steering system exists, the steering shaking and the steering force are influenced to a certain extent, and thus the control stability and the safety of the whole vehicle are influenced.

Therefore, there is a need to improve the prior art to overcome the deficiencies of the prior art.

The invention content is as follows:

the invention provides a steering transmission shaft capable of avoiding torque fluctuation in order to solve the problems in the prior art.

The technical scheme adopted by the invention is as follows: the utility model provides a can avoid moment fluctuation steering drive shaft, includes hemisphere casing, big clamp, dust cover, ball steel ball formula axostylus axostyle, little clamp, steel ball, holder, little steel ball, jump ring and interior star gear, the steel ball is located the holder, and interior star gear is located the hemisphere casing, and the both ends of ball steel ball formula axostylus axostyle are equipped with the external splines that cooperate and be used for the transmission moment of torsion with the internal spline of interior star gear, be equipped with the jump ring groove between the external splines at ball steel ball formula axostylus axostyle both ends and the internal spline of interior star gear, the jump ring is installed in the jump ring groove, hemisphere casing and dust cover link together through big clamp, and dust cover and.

Furthermore, a retainer is also arranged in the ball steel ball type shaft rod, and the small steel balls are positioned in the retainer.

The invention has the following beneficial effects: the torque fluctuation steering transmission shaft can avoid the influence of the steering torque fluctuation on the steering stability of the whole vehicle, has far-reaching significance on safe driving of the whole vehicle, and can improve the comfort of the whole vehicle. In addition, the invention can provide large torque by using the ball steel ball type shaft rod, and has the advantages of smooth sliding, small meshing clearance and the like.

Description of the drawings:

FIG. 1 is a front view of a torque ripple evasive steering drive shaft of the present invention.

Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.

The specific implementation mode is as follows:

the invention will be further described with reference to the accompanying drawings.

The steering transmission shaft capable of avoiding torque fluctuation comprises a hemispherical shell 2, a large clamp 3, a dust cover 4, a ball steel ball type shaft lever 5, a small clamp 6, a steel ball 7, a retainer 8, a small steel ball 9, a clamp spring 10 and an inner star wheel 11, wherein the steel ball 7 is positioned in the retainer 8, the inner star wheel 11 is positioned in the hemispherical shell 2, outer splines matched with the inner splines of the inner star wheel 11 and used for transmitting torque are arranged at two ends of the ball steel ball type shaft lever 5, a clamp spring groove is formed between the outer splines at two ends of the ball steel ball type shaft lever 5 and the inner splines of the inner star wheel 11, and the clamp spring 10 is arranged in the clamp spring groove and used for preventing the ball steel ball type shaft lever 5 and the inner star wheel. The hemispherical housing 2 and the dust cover 4 are connected together by a large clamp 3, the dust cover 4 and the ball-and-ball type shaft 5 are fixed by a small clamp 6, and a retainer (not shown) is also provided in the ball-and-ball type shaft 5, and the small steel balls 9 are located in the retainer. The semi-spherical shell 2, the large clamp 3, the dust cover 4, the ball steel ball type shaft lever 5, the small clamp 6, the steel ball 7, the retainer 8, the small steel ball 9, the clamp spring 10 and the inner star wheel 11 form a rotation transmission shaft, and the rotation transmission shaft and a steering column output shaft (not marked) are fixed through a bolt 1.

The torque fluctuation steering transmission shaft can avoid the influence of the steering torque fluctuation on the steering stability of the whole vehicle, has far-reaching significance on safe driving of the whole vehicle, and can improve the comfort of the whole vehicle. In addition, the invention can provide large torque by using the ball steel ball type shaft rod, and has the advantages of smooth sliding, small meshing clearance and the like.

The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.