CN207120791U - Turn to sheath shaft and steering spindle - Google Patents

Abstract

Turning to sheath shaft and steering spindle, the steering sheath shaft the utility model discloses one kind includes：Sleeve body and elastic sealing element；The sleeve body is hollow cylindrical structure, and one end is provided with the opening for being used for being arranged splined sleeve, and the through hole for being used for wearing splined shaft is provided with one end away from the opening；Inwall and the close opening in the sleeve body, provided with the retainer for connecting and fixing；The elastic sealing element is arranged on the inside of the sleeve body, and is abutted with one end provided with the through hole.This new foreign matter such as dust and dust particle that can be effectively prevented from easily enters in splined sleeve; it can prevent from overflowing splined sleeve through slidably reciprocating coated in the grease on splined shaft simultaneously; so as to play a part of protecting splined shaft and splined sleeve, and then enhance the security of steering again while steering spindle service life is improved.

Description

Turn to sheath shaft and steering spindle

Technical field

It the utility model is related to auto steerer field, more particularly to a kind of steering sheath shaft and steering spindle.

Background technology

Transfer is part important in automobile chassis system, transfer typically by steering wheel, steering column, The part such as steering spindle and steering gear forms.Wherein, steering spindle is connected between steering column and steering gear, as shown in figure 1, existing By steering spindle be mainly made up of splined sleeve 100 and splined shaft 200, due to whole steering structure can with automobile bumpiness and on Lower motion, it is that splined shaft 200 can make telescopic moving in splined sleeve 100 the characteristics of steering spindle, so as to eliminate on wheel therefore The lower impact brought to steering column and steering wheel etc. of beating.To make splined shaft 200 be stretched in splined sleeve 100 smooth and subtracting Less wear, typically all it can coat lubricant grease on splined shaft 200.

But often occur in routine use due to for a long time and frequently stretching motion, grease is from splined sleeve 100 The situation of spilling, the wear problem of the splined shaft 200 and splined sleeve 100 that make to lack oil lubrication more highlight；Further, dust is micro- Grain etc. can also enter in splined sleeve 100 from the junction surface of splined shaft 200 and splined sleeve 100, so as to accelerate both Abrasion, the splined shaft 200 and splined sleeve 100 of serious wear can cause both back lashes overproof, and then in running car During produce abnormal sound, strong influence driving safety and Consumer's Experience.

Utility model content

The purpose of this utility model is to provide a kind of steering sheath shaft and steering spindle, excessive to solve existing steering spindle grease And foreign matter enters the problem of splined sleeve.

The technical solution adopted in the utility model is as follows：

One kind turns to sheath shaft, including：

Sleeve body and elastic sealing element；

The sleeve body is hollow cylindrical structure, and one end is provided with the opening for being used for being arranged splined sleeve, and remote One end from the opening is provided with and is used to wear the through hole of splined shaft；

Retainer is provided with the inwall of the sleeve body and the close opening；

The elastic sealing element is arranged on the inside of the sleeve body, and is abutted with one end provided with the through hole.

Preferably, the elastic sealing element is rubber seal.

Preferably, the sleeve body is plastic material.

Preferably, the retainer is annular projection structure.

A kind of steering spindle, including splined shaft and splined sleeve, it also includes above-mentioned steering sheath shaft；

Groove is provided with the outer wall of the lower end of the splined sleeve；

The sleeve body is set in the lower end of the splined sleeve, and the retainer is embedded into the groove；

The splined shaft sequentially passes through the through hole and elastic sealing element, and coordinates with the splined sleeve；

The elastic sealing element abuts with the sleeve body and splined sleeve respectively.

The utility model efficiently avoid the foreign matters such as dust and dust particle and easily enter by designing a kind of steering sheath shaft Enter in splined sleeve, while can prevent from overflowing splined sleeve through slidably reciprocating coated in the grease on splined shaft, protected so as to play The effect of splined shaft and splined sleeve is protected, and then enhances the safety of steering again while steering spindle service life is improved Property.

Brief description of the drawings

It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer Type is further described, wherein：

Fig. 1 is existing steering spindle schematic diagram；

Fig. 2 is the sectional view of the embodiment of steering sheath shaft provided by the utility model；

Fig. 3 is the schematic diagram of the embodiment of steering spindle provided by the utility model；

Fig. 4 is the cooperation schematic diagram of steering sheath shaft provided by the utility model and steering spindle.

Description of reference numerals：

The splined shaft 10 of 100 splined sleeve 200 turns to the sleeve body of sheath shaft 1

The 2 elastic sealing elements 3 opening retainer of 4 through hole 5

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, only explains the utility model, and can not be construed to limitation of the present utility model.

The utility model provides a kind of embodiment for turning to sheath shaft 10, as shown in Fig. 2 including sleeve body 1 and bullet Property seal 2.Wherein, sleeve body 1 is hollow cylindrical structure, cup-shaped, it is contemplated that overall lightweight, sleeve body 1 can be selected plastic material；Then, the opening 3 for being used for being arranged splined sleeve 100 is provided with one end of sleeve body 1, can also be managed Solve as " rim of a cup ", and the through hole 4 for wearing splined shaft 200 is provided with one end (i.e. " bottom of a cup ") away from the opening 3, preferably Ground, the through hole 4 can meet with minimum clearance to coordinate with splined shaft 200；At the inwall of sleeve body 1 and close foregoing opening 3, The retainer 5 for connecting and fixing is additionally provided with, the retainer 5 can be the bulge-structure of subsection setup, or overall ring Shape bulge-structure；Elastic sealing element 2 is arranged on the inside of sleeve body 1, and is abutted with one end (" bottom of a cup ") provided with through hole 4, The structure of the elastic sealing element 2 can be sealing ring, sealing gasket or sealing ring etc. in practical operation, and material can be rubber Glue, polyurethane or Teflon etc..

In addition, originally new additionally provide a kind of embodiment of steering spindle, with reference to figure 3 and Fig. 4, it includes the He of splined shaft 200 Splined sleeve 100, it further comprises the steering sheath shaft 10 at the junction surface for being arranged on splined shaft 200 and splined sleeve 100.It is specific next Say, sleeve body 1 is set in the lower end of splined sleeve 100, and retainer 5 is embedded on the lower end outer wall of splined sleeve 100 Groove in；Splined shaft 200 then sequentially passes through through hole 4 and elastic sealing element 2, and is inserted into splined sleeve 100 and coordinates with it； After the completion of assembling, elastic sealing element 2 can be provided with one end of through hole 4 and the lower bottom of splined sleeve 100 with sleeve body 1 respectively Abut against.So, in splined sleeve 100 during telescopic moving, presence of the grease because turning to sheath shaft 10 will not overflow splined shaft 200 Go out, meanwhile, turn to sheath shaft 10 and sealing function is played to the bottom of splined sleeve 100, effectively prevent dust or dust particle Into inside splined sleeve 100, the abrasion of splined shaft 200 and splined sleeve 100 is greatly reduced.

Construction, feature and action effect of the present utility model is described in detail according to the embodiment shown in schema above, but Preferred embodiment of the present utility model be the foregoing is only, it is necessary to explain, involved by above-described embodiment and its preferred embodiment Technical characteristic, those skilled in the art can not depart from, not change mentality of designing of the present utility model and technique effect On the premise of, reasonably combination collocation is into a variety of equivalents；Therefore, the utility model does not implement model to be limited shown in drawing Enclose, it is every according to the made change of conception of the present utility model, or be revised as the equivalent embodiment of equivalent variations, still without departing from saying , all should be in the scope of protection of the utility model when bright book is with illustrating covered spirit.

Claims (5)

1. one kind turns to sheath shaft, it is characterised in that including：

Sleeve body and elastic sealing element；

The sleeve body is hollow cylindrical structure, and one end is provided with the opening for being used for being arranged splined sleeve, and away from institute The one end for stating opening is provided with the through hole for being used for wearing splined shaft；

Retainer is provided with the inwall of the sleeve body and the close opening；

The elastic sealing element is arranged on the inside of the sleeve body, and is abutted with one end provided with the through hole.

2. steering sheath shaft according to claim 1, it is characterised in that the elastic sealing element is rubber seal.

3. steering sheath shaft according to claim 1, it is characterised in that the sleeve body is plastic material.

4. steering sheath shaft according to claim 1, it is characterised in that the retainer is annular projection structure.

5. a kind of steering spindle, including splined shaft and splined sleeve, it is characterised in that also including described in any one of Claims 1 to 4 Steering sheath shaft；

Groove is provided with the outer wall of the lower end of the splined sleeve；

The sleeve body is set in the lower end of the splined sleeve, and the retainer is embedded into the groove；

The splined shaft sequentially passes through the through hole and elastic sealing element, and coordinates with the splined sleeve；

The elastic sealing element abuts with the sleeve body and splined sleeve respectively.