阅读说明：本技术 一种三球销式转向器 (A kind of tripod diverter ) 是由 葛主策 沈波 于 2019-09-19 设计创作，主要内容包括：本发明公开了一种三球销式转向器,包括外壳、以及设置在外壳内的轴向滚动装置,该外壳内具有滑移腔,该滑移腔的外缘上具有三个与轴向相平行的导向槽；该轴向滚动装置包括连接轴、以及连接于连接轴两端的三球销,该三球销包括三销架、以及可转动设置在三销架的销轴的滚动组件；所述轴向滚动装置安装在滑移腔内,所述滚动组件嵌置在导向槽内且该滚动组件能够沿着导向槽轴向滑滚。本发明结构简单,合理,与传统的滑移式转向器相比,将轴向移动方式由滑动改变为滚动,大大降低了轴向移动的摩擦力,提高了产品使用寿命。(The invention discloses a kind of tripod diverter, axial rolling device including shell and setting inside the shell has slid chamber in the shell, in the outer rim of the slid chamber tool there are three with axial parallel guide groove；The axial rolling device includes connecting shaft and three ball pins for being connected to connecting shaft both ends, three ball pin include spider and be rotatably provided in spider pin shaft rolling assembly；The axial rolling device is mounted in slid chamber, and the rolling assembly is in guide groove and the rolling assembly can be along guide groove axially sliding rolling.Axial movement mode rationally compared with traditional sliding diverter, is changed into rolling by sliding, greatly reduces the frictional force of axial movement, improve product service life by the configuration of the present invention is simple.)

1. a kind of tripod diverter, which is characterized in that including shell and setting axial rolling device inside the shell, There is in the shell slid chamber, in the outer rim of the slid chamber tool there are three with axial parallel guide groove；

The axial rolling device includes connecting shaft and three ball pins for being connected to connecting shaft both ends, which includes spider And rolling assembly, the rolling assembly are three groups and are spindle rotationally arranged on three pin shafts of spider respectively；

The axial rolling device is mounted in slid chamber, and rolling assembly described in three groups is embedded in three guide grooves respectively and energy It is enough to be rolled each along guide groove is axially sliding.

2. a kind of tripod diverter according to claim 1, which is characterized in that set in the slid chamber of the shell There is the housing matched with its size, shape, which has track corresponding with three guide grooves.

3. a kind of tripod diverter according to claim 2, which is characterized in that the housing is by metal material It is made and through Overheating Treatment cure process.

4. a kind of tripod diverter according to claim 2, which is characterized in that three tracks of the housing In non-equal part arrangement and the opposite two side walls face of the track is arc surface.

5. a kind of tripod diverter according to claim 1, which is characterized in that the rolling assembly include ball and Needle roller, the ball are socketed on the pin shaft of spider, which is arranged between ball and pin shaft.

Technical field

The present invention relates to steering system technical field, in particular to a kind of tripod diverter.

Background technique

Diverter is very important critical component in wheel steering system, and principle is that driver turn steering wheel drives The rotary motion of steering wheel is changed into axial movement by internal gear by steering shaft and diverter, and the performance of diverter will be straight Connect the stability and reliability for influencing Vehicular turn.

Existing diverter is slid axially from the optical axis with rack gear and completion with bearing inner race, due to light Axis and bearing inner race are sliding frictions, for a long time using the abrasion that can aggravate between optical axis and bearing, cause to turn to abnormal sound influence It drives quality and increases maintenance cost.

Summary of the invention

The present invention is to provide a kind of tripod diverter to overcome above-mentioned defect in the prior art, sliding with tradition Shifting formula diverter is compared, and axial movement mode is become rolling from sliding, the frictional force of axial movement is greatly reduced, improves The service life of product.

To achieve the above object, the present invention provides a kind of tripod diverter, including shell and setting are inside the shell Axial rolling device, there is in the shell slid chamber, in the outer rim of the slid chamber tool there are three with axial parallel guiding Slot；

The axial rolling device includes connecting shaft and three ball pins for being connected to connecting shaft both ends, which includes spider And rolling assembly, the rolling assembly are three groups and are spindle rotationally arranged on three pin shafts of spider respectively；

The axial rolling device is mounted in slid chamber, and rolling assembly described in three groups is embedded in three guide grooves respectively and energy It is enough to be rolled each along guide groove is axially sliding.

It is further arranged to: equipped with the housing matched with its size, shape, three column in the slid chamber of the shell Pot shell has track corresponding with three guide grooves.

Be further arranged to: the housing is made of metal material and through Overheating Treatment cure process.

It is further arranged to: two sides that three tracks of the housing are arranged in non-equal part and the track is opposite Wall surface is arc surface.

Be further arranged to: the rolling assembly includes ball and needle roller, which is socketed on the pin shaft of spider, should Needle roller is arranged between ball and pin shaft.

Compared with prior art, the configuration of the present invention is simple, rationally, compared with the sliding diverter of tradition, will move axially Mode becomes rolling from sliding, and greatly reduces the frictional force of axial movement, improves the service life of product.

Detailed description of the invention

Fig. 1 is a kind of axial end face structural schematic diagram of tripod diverter of the present invention；

Fig. 2 is the axial separation structural schematic diagram of commutator；

Fig. 3 is the separated structure schematic diagram of axial rolling device.

The following drawings is marked to mark on it in conjunction with attached drawing:

1, shell；11, guide groove；2, axial rolling device；21, connecting shaft；22, three ball pin；221, spider；2211, pin shaft； 222, ball；223, needle roller；224, retaining ring；225, circlip；3, housing；31, track.

Specific embodiment

With reference to the accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention Protection scope be not limited by the specific implementation.

One kind of the invention three ball pins, 22 formula diverter is as shown in Figure 1 to Figure 3, including shell 1 and setting are in shell 1 Axial rolling device 2, which has by metal material integrally casting shaping, in the shell 1 for installing axial rolling dress 2 slid chamber is set, there are three the guide grooves 11 that axis is arranged and be parallel in non-equal part for tool on the outer edge surface of the slid chamber；The axis Include connecting shaft 21 to tourelle 2 and be connected to three ball pins 22 at 21 both ends of connecting shaft, the ball pin include spider 221, And it is rotatably provided in the rolling assembly on three pin shafts 2211 of spider 221 respectively, rolling assembly preferably includes ball 222, needle roller 223, retaining ring 224 and circlip 225, there are three the ball 222 tools and is socketed in three pin shafts of spider 221 respectively On 2211, which is arranged between ball 222 and pin shaft 2211 so that ball 222 and pin shaft 2211 are in rolling cooperation, Frictional force between the two is greatly reduced, the retainer ring and circlip 225 are arranged at the outside on pin shaft 2211 and being located at ball 222 Locking ball 222 on pin shaft 2211；The axial rolling device 2 is mounted in slid chamber, corresponding, and three of three ball pins 22 And ball 222 interior embedded in three guide grooves 11 can be along the axial sliding rolling of guide groove 11 respectively for ball 222.

Preferably, housing 3 compatible with slid chamber size, shape, three column are equipped in the slid chamber of shell 1 Pot shell 3 has track 31 corresponding with three guide grooves 11, and the ball 222 of three ball pins 22 is arranged in track 31；Preferably, The housing 3 is made of metal material and by heat treatment cure process, so that housing 3 has high-intensitive and height Wearability；Preferably, the two sides that three tracks 31 of housing 3 are arranged in non-equal part and track 31 is opposite are arc surface knot Structure, so that the arc surface of the spherical outside surface of ball 222 and housing 3 being capable of automatic aligning.

Compared with prior art, the configuration of the present invention is simple, rationally, compared with the sliding diverter of tradition, will move axially Mode becomes rolling from sliding, and greatly reduces the frictional force of axial movement, improves the service life of product.

Disclosed above is only the embodiment of the present invention, and still, the present invention is not limited to this, the technology of any this field What personnel can think variation should all fall into protection scope of the present invention.