CN208216832U - The assembling structure and automobile of steering shaft and section fork - Google Patents

Abstract

The utility model relates to automobile steering system technical fields, and in particular to a kind of assembling structure of steering shaft and section fork comprising: fastener；The end face of steering shaft, end is equipped with groove；Section fork, is equipped with mounting hole, and to be inserted into the end of steering shaft and couple with the end spline of steering shaft, and side forms slit；Locating part, including base portion, protection department and the interconnecting piece for connecting base portion and protection department, base portion is set in steering shaft, and it is abutted with the bottom surface of section fork, the lower surface of protection department is equipped with protrusion, protection department is arranged in steering shaft in a manner of protrusion and groove cooperation, and interconnecting piece is threaded through in the slit of section fork.According to above structure, it can be ensured that the accuracy and uniqueness of rigging position improve assembly efficiency, reduce product defect rate, save manufacturing cost.

Description

The assembling structure and automobile of steering shaft and section fork

Technical field

The utility model relates to steering system fields, more particularly to the assembling structure and vapour of a kind of steering shaft and section fork Vehicle.

Background technique

Automobile steering system is according to the device of the wish control vehicle traveling direction of driver, and automobile steering system is to vapour The driving safety of vehicle is most important.Also, in process of production, vehicle factor in order to improve the peripheral vehicles such as steering wheel part and turn to The assembly efficiency of system generally requires steering system to have unique rigging position in direction of rotation.

In the prior art, when assembling the steering shaft and section fork in steering system, steering shaft is usually inserted into section fork and is spent Key connecting, and fastener is inserted into complete to assemble.However, usually there are following problems in assembling process, for example, turning to The end of axis is pushed into firmly slightly larger during section fork or when not axially aligning, the external splines meeting of steering shaft end along axial With section fork collide with, cause the external splines of steering shaft be damaged or steering shaft push-in section pitch in when be difficult to control accurately axis Upward assembled position causes to pacify so that the concave portion of steering shaft can not be corresponding for being inserted into the through-hole of fastener with section fork When damage steering shaft external splines or steering shaft couple with section fork spline when loading firmware, it is difficult to accurately control spline fitted Position, and then it is difficult to control the rigging position with the input shaft of the connection steering wheel of section fork cooperation in steering system, thus It is unable to ensure the assembling angle of the peripheral vehicles part such as steering system and steering wheel.

In this regard, following methods are generallyd use, for example, as shown in Figure 1, end is wholely set anti-when manufacturing steering shaft 10 Shield portion 11, to prevent spline in assembling process impaired, or as shown in Fig. 2, in order to accurately control spline fitted position, in steering shaft Hypodontia 12 and blind tooth (not shown) are accordingly set at 10 external splines and the internal spline of section fork, quick and precisely to assemble, led to simultaneously It crosses operator and controls the setting position of steering shaft and section fork in the axial direction to visually observe.

But steering shaft and the assembling structure of section fork have following defects that when steering shaft end one according to prior art When protection department is arranged in body, although can overcome the problems, such as that steering shaft spline in assembling process is impaired, due to steering shaft by The metal materials such as steel are made, therefore this design will increase the manufacturing procedure of manufacturing cost and steering shaft；Also, when using flower When the hypodontia design at key end, although the spline fitted position of steering shaft and section fork can be limited, the accuracy of spline connection is improved, But position is axially engaged when being unable to control steering shaft push-in section fork, if controlling axial assembly position by naked eyes by operator It sets, not only will increase assembly time, waste of time, but also there is the risk of damage spline, increase product defect rate.Therefore, It needs one kind that can save cost, while ensuring unique rigging position, improve the structure of assembly efficiency.

Utility model content

(1) technical problems to be solved

One purpose of the utility model is, provides the steering shaft and section fork that a kind of assembly efficiency is high and manufacturing cost is low Assembling structure, to solve the problems, such as that existing steering shaft and the assembly efficiency of assembling structure of section fork are low and manufacturing cost is high.

Another purpose of the utility model is, provides a kind of high including above-mentioned assembly efficiency and low manufacturing cost turn To the automobile of the assembling structure of axis and section fork, to solve the assembly efficiency of steering shaft and the assembling structure of section fork in existing automobile Low and high manufacturing cost problem.

(2) technical solution

In order to solve the above-mentioned technical problem, on the one hand, the utility model provides the assembling structure of a kind of steering shaft and section fork, It include: fastener；The end face of steering shaft, end is equipped with groove；Section fork, is equipped with mounting hole, to be inserted into the steering shaft End simultaneously couples with the end spline of the steering shaft, and side forms slit；Locating part, including base portion, protection department and company The interconnecting piece of base portion and protection department is connect, the base portion is set in the steering shaft, and is abutted with the bottom surface of section fork, The lower surface of the protection department is equipped with protrusion, and the protection department is arranged in described in a manner of the protrusion and groove cooperation In steering shaft, the interconnecting piece is threaded through in the slit of the section fork.

Preferably, the locating part is made of plastic material.

Preferably, it is protruded at the center of the lower surface of the protection department and is formed with protruding portion, described in the protruding portion insertion The hollow portion of steering shaft.

Preferably, the protruding portion is pressed into the hollow portion of the steering shaft by interference fit type.

Preferably, the outer peripheral surface of the protruding portion is provided with external screw thread, and the hollow portion inner surface is provided with internal screw thread, institute It states protruding portion and is inserted into the hollow portion and being threadedly engaged.

Preferably, the interconnecting piece is in " C " shape substantially, and one end is connect with the base portion, the other end and the protection Portion's connection.

Preferably, the base portion and the steering shaft clearance fit, the protection department and the mounting hole clearance fit.

Preferably, the slit is equipped with through-hole in the slit two sides, the through-hole is for being inserted into fastening in lower openings Part, to fix steering shaft and section fork.

Preferably, it is equipped in the end of the steering shaft for cooperating the concave portion for being inserted into the fastener.

On the other hand, the utility model additionally provides a kind of automobile, the assembling structure including above-mentioned steering shaft and section fork.

(3) beneficial effect

Compared with prior art, the utility model has the advantage that a kind of steering shaft provided by the utility model and section The assembling structure of fork, comprising: fastener；The end face of steering shaft, end is equipped with groove；Section fork, is equipped with mounting hole, with insertion The end of steering shaft simultaneously couples with the end spline of steering shaft, and side forms slit；Locating part, including base portion, protection department And the interconnecting piece of connection base portion and protection department, base portion are set in steering shaft, and are abutted with the bottom surface of section fork, protection department Lower surface is equipped with protrusion, and protection department is arranged in steering shaft in a manner of protrusion and groove cooperation, and interconnecting piece is threaded through section fork In slit.The protrusion of the protection department of locating part, interconnecting piece, section can be passed through when assembling steering shaft and section is pitched according to above structure Between the slit of fork and the groove of steering shaft end be coupled control steering shaft and section fork spline fitted position and Axially engage position, it is ensured that the accuracy and uniqueness of rigging position, and then control the unique of steering system and steering wheel etc. Angle is assembled, and prevents in assembling process that component is impaired, bad problem occurs for product, saves assembling working hour；Meanwhile it can pass through Be mounted on turn to the protection department of axial end prevent in assembling process steering shaft and section fork collide with caused by spline damage, The manufacturing procedure for omitting the existing protection department being integrally formed for steering shaft, saves raw material and process time, realizes and turns to The product sharing of axis.In addition, the assembling structure of steering shaft provided by the utility model and section fork, assembly efficiency is high, manufacture at This low and excellent in stability.

Detailed description of the invention

Fig. 1 is the figure for showing the structure of the end of steering shaft of the prior art.

Fig. 2 is the figure for showing the structure of the end of steering shaft of the prior art.

Fig. 3 is the schematic diagram of the steering shaft for showing embodiment according to the present utility model and the assembling structure of section fork.

Fig. 4 is the cross-sectional view of the steering shaft for showing embodiment according to the present utility model and the assembling structure of section fork.

Fig. 5 is the schematic diagram for showing the locating part of embodiment according to the present utility model.

Description of symbols:

10: steering shaft；11: protection department；12: hypodontia；100: steering shaft；110: hollow portion；120: concave portion；200: section Fork；210: through-hole；220: mounting hole；230: slit；300: locating part；310: base portion；320: protection department；321: protrusion； 322: protruding portion；330: interconnecting piece；400: fastener

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and cannot understand For indication or suggestion relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, it is above-mentioned that concrete condition understanding can be regarded The concrete meaning of term in the present invention.

In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " more ", " multiple groups " are meant that two It is a or more than two.

Fig. 3 is the schematic diagram of the steering shaft for showing embodiment according to the present utility model and the assembling structure of section fork；Fig. 4 is The cross-sectional view of the steering shaft of embodiment according to the present utility model and the assembling structure of section fork is shown；Fig. 5 is shown according to this reality With the schematic diagram of the locating part of novel embodiment.

As shown in Figures 3 to 5, the embodiments of the present invention provide the assembling structure of a kind of steering shaft and section fork, Including steering shaft 100, section fork 200, locating part 300 and fastener 400.The end of the steering shaft 100 is provided with external splines, and The end face of the end is equipped with groove (not shown)；The section fork 200 has the mounting hole for being inserted into the steering shaft 100 220,220 inner surface of mounting hole is provided with internal spline, to couple with the external splines spline of the steering shaft 100, the section The side of fork 200 forms slit 230；The fastener 400 is for fixing steering shaft 100 and section fork 200；The locating part 300 Including base portion 310, protection department 320 and the interconnecting piece 330 for connecting base portion 310 and protection department 320,310 sets of the base portion It is located in the steering shaft 100, and is abutted with the bottom surface of section fork 200, the protection department 320 is that diameter is slightly less than steering shaft Cylinder, and lower surface be equipped with protrusion 321, the protection department 320 with described raised 321 with the groove it is (not shown) cooperation Mode be arranged in the steering shaft 100, the interconnecting piece 330 is threaded through in the slit 230 of section fork 200.

According to above structure it is found that protection department 320 is when assembling steering shaft 100 with section fork 200 with protrusion 321 and steering The mode of the groove cooperation of axis 100 is arranged in steering shaft 100, thus limits the opposite position of locating part 300 and steering shaft 100 Set, and by wearing configuration between the interconnecting piece 330 of locating part 300 and the slit 230 of section fork 200, control steering shaft 100 and The relative position of section fork 200, i.e. spline fitted position, meanwhile, steering shaft is being pushed away along axial direction according to above-mentioned spline fitted position When entering in section fork, by the abutting of 200 bottom surfaces of base portion 310 and section fork, control steering shaft 100 is axially engaged with section fork 200 Position, with smooth fixation fastener 400.That is, can protrusion 321 by the protection department 320 of locating part 300, interconnecting piece 330, being coupled to control steering shaft 100 and section between the groove of 100 end of slit 230 and steering shaft of section fork 200 Fork 200 spline fitted position and axially engage position, it is ensured that the accuracy and uniqueness of rigging position, so control steering system Unique assembling angle of system and steering wheel etc., and prevent in assembling process that component is impaired, bad problem occurs for product, it saves Assemble working hour.In addition, section fork 200 is first and is mounted on steering shaft 100 when 100 end of steering shaft is saved along fork 200 along axial push-in The protection department 320 of end face is assembled, and makes spline is impaired to ask so as to prevent steering shaft 100 from colliding with section fork Topic omits the manufacturing procedure of the existing protection department being integrally formed for steering shaft, can save raw material and process time.

Preferably, the locating part 300 is made of plastic material.It, can be with low using made of plastics when locating part The component of cost realizes above-mentioned effect, and can omit the integrally formed metal protection portion of original steering shaft and therefore can subtract The manufacturing procedure of few steering shaft reduces manufacturing cost, in steering shaft using upper, can be realized the maximum sharing of product.

Also, the center of 320 lower surface of protection department is prominent to be formed with protruding portion 322, and the protruding portion 322 is inserted into institute The protection department, is arranged in the end face of the steering shaft by the hollow portion 110 for stating steering shaft 100, easy to operate.

As one embodiment of protruding portion, the protruding portion 322 can be pressed into the steering shaft by interference fit type Hollow portion.When protruding portion being pressed into hollow portion by the way of interference fit, in assembling process will not relative rotation, and not It is easy to fall off, it is capable of providing effective fastening force.

As another embodiment of protruding portion, the outer peripheral surface of the protruding portion 322 may be provided with external screw thread, the hollow portion 110 inner surfaces are provided with internal screw thread, and the protruding portion 322 is inserted into the hollow portion 110 and being threadedly engaged.In above structure In, since locating part is made of plastics, so that above-mentioned threaded portion is more soft, therefore screw thread is used in protruding portion and hollow portion When fit system insertion installation, without being accurately aimed at screw thread and rotating, it can be pressed directly into, be easily installed.

In addition, the base portion 310 of the locating part 300 and 100 clearance fit of steering shaft, the protection department 320 pitch 200 220 clearance fit of mounting hole with the section.When locating part is arranged steering shaft and protection department is inserted into section fork peace When filling hole, it can be spaced with spline, not damage spline.

In addition, the interconnecting piece 330 is in " C " shape substantially, one end is connect with the base portion 310, the other end with it is described Protection department 320 connects, and is equipped in the end of the steering shaft 100 for cooperating the concave portion 120 for being inserted into the fastener, institute The one side that slit 230 is stated in section fork 200 is longitudinally formed, and lower openings, is equipped with through-hole in 230 two sides of slit 210, the through-hole is interior to be equipped with screw thread, is pitched with being inserted into the fixed steering shaft of fastener and section.As described above, assembly is fixed When, steering shaft 100 is as above controlled by the abutting of 200 bottom surfaces of base portion 310 and section fork and section fork 200 axially engages position It sets, cooperates concave portion 120 with " C " the shape interconnecting piece and through-hole being threaded through in above-mentioned slit 230, fastener 400 is smooth It is inserted into through-hole 210, the external splines without damaging steering shaft 100.At this point, slit and interconnecting piece can be close by installation fastener Fitting, therefore the generation of noise can also be prevented.

Preferably, the fastener may include bolt and elastic washer or nut and bolt, and but it is not limited to this, as long as It is easy for installing, it is possible to provide the component of effective fastening force.

On the other hand, the utility model additionally provides a kind of automobile, the assembly including foregoing steering shaft and section fork Structure, the steering system of this automobile can utilize locating part when assembling steering shaft and section fork, what control steering shaft and section were pitched Spline fitted position and axial position, so as to prevent in assembling process the problem that component is impaired, generation product is bad, and The unique assembling angle that can ensure the accuracy and uniqueness of rigging position, and then control steering system and steering wheel etc., Improve assembly efficiency.Additionally it is possible to substitute original metal structure using the protection department of locating part, manufacturing cost is saved. The vehicle structure of the utility model is simple, and manufacturing cost is low, and stability is good.

In conclusion the utility model provides the assembling structure of a kind of steering shaft and section fork comprising: fastener；Turn To axis, the end face of end is equipped with groove；Section fork, be equipped with mounting hole, be inserted into the steering shaft end and with described turn Couple to the end spline of axis, and side forms slit；Locating part, including base portion, protection department and connection base portion and protection The interconnecting piece in portion, the base portion are set in the steering shaft, and are abutted with the bottom surface of section fork, under the protection department Surface is equipped with protrusion, and the protection department is arranged in the steering shaft in a manner of the protrusion and groove cooperation, described Interconnecting piece is threaded through in the slit of the section fork.According to above structure, when the end of steering shaft couples with section fork spline, protection Portion together with end with steering shaft of protrusion and the state that groove cooperates to be plugged in mounting hole, and interconnecting piece is threaded through section fork In the slit of side, so that the relative position that steering shaft couples with the spline of section fork is controlled, bottom surface and base portion with time fork It abuts, the movement in axial direction to control steering shaft and section fork.That is, locating part can be passed through when assembling steering shaft and section is pitched The protrusion of protection department, saves being coupled to control steering shaft between the groove of the slit and steering shaft end pitched at interconnecting piece With section fork spline fitted position and axially engage position, it is ensured that the accuracy and uniqueness of rigging position, so control steering Unique assembling angle of system and steering wheel etc., and prevent in assembling process that component is impaired, bad problem occurs for product, it saves Save assembling working hour；Meanwhile it can be by being mounted on the protection department for turning to axial end to prevent steering shaft in assembling process and saving fork hair It is raw collide with caused by spline damage, omit the manufacturing procedure of the existing protection department being integrally formed for steering shaft, save former Material and process time realize the product sharing of steering shaft.In addition, the assembly of steering shaft provided by the utility model and section fork Structure, assembly efficiency are high, and manufacturing cost is low and excellent in stability.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (10)

1. the assembling structure of a kind of steering shaft and section fork characterized by comprising

Fastener；

The end face of steering shaft, end is equipped with groove；

Section fork, is equipped with mounting hole, to be inserted into the end of the steering shaft and couple with the end spline of the steering shaft, and one Side forms slit；

Locating part, including base portion, protection department and the interconnecting piece for connecting base portion and protection department, the base portion is set in described It in steering shaft, and is abutted with the bottom surface of section fork, the lower surface of the protection department is equipped with protrusion, and the protection department is with described convex It plays the mode cooperated with the groove to be arranged in the steering shaft, the interconnecting piece is threaded through in the slit of the section fork.

2. the assembling structure of steering shaft according to claim 1 and section fork, which is characterized in that the locating part uses plastics Material is made.

3. the assembling structure of steering shaft according to claim 2 and section fork, which is characterized in that in the following table of the protection department The center protrusion in face is formed with protruding portion, and the protruding portion is inserted into the hollow portion of the steering shaft.

4. the assembling structure of steering shaft according to claim 3 and section fork, which is characterized in that the protruding portion passes through interference Fit system is pressed into the hollow portion of the steering shaft.

5. the assembling structure of steering shaft according to claim 3 and section fork, which is characterized in that the outer peripheral surface of the protruding portion It is provided with external screw thread, the hollow portion inner surface is provided with internal screw thread, and the protruding portion is inserted into described and being threadedly engaged Empty portion.

6. the assembling structure of steering shaft according to claim 1 and section fork, which is characterized in that the base portion and described turn Cooperate to shaft clearance, the protection department and the mounting hole clearance fit.

7. the assembling structure of steering shaft according to claim 1 and section fork, which is characterized in that the interconnecting piece is in substantially " C " shape, one end are connect with the base portion, and the other end is connect with the protection department.

8. the assembling structure of steering shaft according to claim 1 and section fork, which is characterized in that the slit is opened in lower part Mouthful, it is equipped with through-hole in the slit two sides, the through-hole is for being inserted into fastener, to fix steering shaft and section fork.

9. the assembling structure of steering shaft according to claim 1 and section fork, which is characterized in that in the end of the steering shaft Equipped with for cooperating the concave portion for being inserted into the fastener.

10. a kind of automobile, which is characterized in that the assembly including steering shaft as claimed in any one of claims 1-9 wherein and section fork Structure.