CN206217986U - A kind of backlash compensation elastic mechanism of slidingtype jackshaft - Google Patents

Abstract

The utility model discloses a kind of backlash compensation elastic mechanism of slidingtype jackshaft, including：Section fork, two groove real axis, slip steel ball, wear-resisting spring leaf, the fluted tube joint of welded type two fork, the section fork, two groove real axis and the fluted tube joint of welded type two are sequentially connected between pitching, an entirety is connected as between the section fork, two groove real axis, the fluted tube joint fork of the welded type two has central siphon interior axle.Through the above way, the backlash compensation elastic mechanism of the slidingtype jackshaft that the utility model is provided, the adaptability to environment is stronger, in the applied environment particularly in enging cabin（130deg）Any deformation or softening, stable performance will not occur, in addition, steel ball and spring wear plate have through Overheating Treatment, can still keep premium properties, such as high rigidity, and noiselessness to produce after automobile is using the life-span more long.

Description

A kind of backlash compensation elastic mechanism of slidingtype jackshaft

Technical field

The utility model is related to a kind of steering intermediate shaft of automobile steering system, more particularly between slidingtype jackshaft Gap compensates elastic mechanism.

Background technology

Jackshaft has been that its function is to realize steering wheel always with it such as the casual accessory of shadow since the utility model of automobile The transmission of torque between steering machine, the nowadays various work(of each shape including slidingtype is developed into from the axle of the integral type of most original Design that can be more sound.The axle of original integral type is a power transmission shaft, and slidingtype is cooperation by pipe axle and mandrel Realize sliding.

The slidingtype jackshaft design of present main flow often to be filled by plastic coating layer the gap of pipe and mandrel with Buffering noise, but the plastics filled can largely weaken the rigidity of power transmission shaft, and also the performance of plastics can receive ambient humidity Temperature influences and dilation or softening or is worn, and always causes failure in varying degrees, when causing motor turning Noise is produced.

And the coating complex manufacturing stability of plastics is difficult to control temperature, pressure monitoring, it is necessary to strict, and The smell of plastics has a strong impact on workshop condition, to the healthy unfavorable of operator.

Fig. 1 show existing design, wherein, 6 is existing section fork, and 7 is external splines real axis, and 8 coat for spline, and 9 is interior flower Key integral type pipe joint is pitched.

Utility model content

The utility model mainly solving the technical problems that how to provide a kind of adaptability to environment stronger, particularly In applied environment in enging cabin（130deg）Any deformation or softening, stable performance, in addition, steel ball will not occur Have through Overheating Treatment with spring wear plate, can still keep premium properties, such as high rigidity after automobile is using the life-span more long, And noiselessness is produced, steel ball adds the assembling of the side attachment portion for sliding jackshaft of Reed type very simple, and people's craft is all Can complete, during need not monitor parameter again in addition to it need to monitor and load steel ball number, and surrounding environment will not be caused to appoint What is influenceed, this to design the application being readily applicable on the welded pipe fork of low price, and the performance of product is ensured while low price is ensured Slidingtype jackshaft backlash compensation elastic mechanism.

In order to solve the above technical problems, the technical scheme that the utility model is used is：There is provided in the middle of a kind of slidingtype The backlash compensation elastic mechanism of axle, including：Section fork, two groove real axis, slip steel ball, wear-resisting spring leaf, the fluted tube of welded type two Joint is pitched, and the section fork, two groove real axis and the fluted tube joint of welded type two are sequentially connected between pitching, the section fork, two grooves Be connected as an entirety between real axis, the fluted tube joint fork of the welded type two has a central siphon interior axle, the two grooves real axis and It is slidably connected between the fluted tube joint fork shaft pipe interior axle of welded type two, the fluted tube joint fork shaft pipe interior axle of the welded type two is formed One rectangular parallelepiped space, the slip steel ball is located at the fluted tube joint fork shaft pipe interior axle institute of the welded type two with wear-resisting spring leaf In the space of the inside of formation, and wear-resisting spring leaf slides steel ball and is respectively positioned on the groove of the welded type two with the wear-resisting spring leaf On the inwall of pipe joint fork shaft pipe interior axle, the wear-resisting spring leaf slides steel ball and is located at the surface of the wear-resisting spring leaf, and Can be moved along the surface of wear-resisting spring leaf.

In a preferred embodiment, the slip steel ball is respectively provided with 2 with wear-resisting spring leaf, in the ditch of the welded type two Relative design on the inwall of barrel joint fork.

In a preferred embodiment, tail end is provided with hook before and after the wear-resisting spring leaf, and one end is used to fix resistance to Without sliding on the fluted tube joint fork shaft inner axial tube of welded type two, the hook of the other end is used for steel ball and is sliding mill spring leaf During do not drop out groove.

The beneficial effects of the utility model are：Adaptability to environment is stronger, the application particularly in enging cabin In environment（130deg）Any deformation or softening will not occur, stable performance, in addition, steel ball and spring wear plate have through Overheating Treatment, can still keep premium properties, such as high rigidity, and noiselessness to produce, steel ball after automobile is using the life-span more long Plus Reed type slip jackshaft side attachment portion assembling it is very simple, people can complete by hand, during remove Need to be monitored need not monitor parameter again outside loading steel ball number, and surrounding environment will not be had any impact, and this design is very Suitable for the application on the welded pipe fork of low price, the performance of product is ensured while low price is ensured.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme in the utility model embodiment, below will be to needed for embodiment description The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings Other accompanying drawings are obtained, wherein：

Fig. 1 is the structural representation of the backlash compensation elastic mechanism existing structure of the utility model slidingtype jackshaft；

Fig. 2 is the structural representation of the specific embodiment of backlash compensation elastic mechanism one of the utility model slidingtype jackshaft Figure.

Specific embodiment

The technical scheme in the utility model embodiment will be clearly and completely described below, it is clear that described Embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the implementation in the utility model Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to The scope of the utility model protection.

Fig. 1 is referred to, the gap that a kind of slidingtype jackshaft is provided in a specific embodiment of the present utility model is mended Elastic mechanism is repaid, the backlash compensation elastic mechanism of described slidingtype jackshaft includes：1, two groove real axis 2 of section fork, slip steel Ball 3, wear-resisting spring leaf 4, the fluted tube joint of welded type two fork 5, the section fork, two groove real axis 2 and the fluted tube axle of welded type two It is sequentially connected between section fork 5, an entirety, the fluted tube of the welded type two is connected as between 1, two groove real axis 2 of the section fork Joint fork 5 has central siphon interior axle, and the two grooves real axis 2 and the fluted tube joint of welded type two pitch the company of slip between 5 central siphon interior axles Connect, the fluted tube joint of the welded type two pitches 5 central siphon interior axles and forms a rectangular parallelepiped space, the slip steel ball 3 and wear-resisting bullet Reed 4 is located at the fluted tube joint of the welded type two and pitches in the space of the inside that 5 central siphon interior axles are formed, and wear-resisting spring leaf 4 Slide steel ball 3 to be respectively positioned on the inwall of the fluted tube joint of the welded type two 5 central siphon interior axles of fork with the wear-resisting spring leaf 4, institute State wear-resisting spring leaf 4 to slide steel ball 3 and be located at the surface of the wear-resisting spring leaf 4, and can be moved along the surface of wear-resisting spring leaf 4 It is dynamic.The slip steel ball 3 is respectively provided with 2 with wear-resisting spring leaf 4, the phase on the inwall of the fluted tube joint of the welded type two fork 5 To design.Tail end is provided with hook 41 before and after the wear-resisting spring leaf 4, and one end is used to fix wear-resisting spring leaf 4 in welded type Two fluted tube joints pitch 5 central siphon interior axles upwards without sliding, and the hook of the other end does not drop out ditch for steel ball in sliding process Groove.

Relative to existing design, the design eliminates plastic coat material, and the complete steel to steel of side attachment portion of axle connects Connect, realized sliding by the movement of steel ball, and refer to wear-resisting spring leaf to compensate part gap, so as to realize precision phase To relatively low part blind-mate, it is to avoid the generation of noise, and before and after spring leaf, tail end all carries hook, and one end is used for solid Spring is determined in central siphon interior axle upwards without sliding, and the hook of the other end can ensure that steel ball does not drop out groove in sliding process, this Design is readily applicable to the application on the welded pipe fork of low price, and the performance of product is ensured while low price is ensured.

In a specific embodiment, in original design basis, have changed original pipe and designed with the spline of mandrel, adopt With the pipe axle and mandrel of with groove, the two coordinates to accommodate steel ball, and eliminates plastic coat part, but applies Spring leaf realizes backlash compensation and noise damping, and newly-designed jackshaft sliding force can be by adjusting steel ball size come more smart True regulation, and sliding force is sufficiently stable on sliding stroke, and the quantity of steel ball can be adjusted in addition to adapt to different automobile types The difference of load and power steering.Spring leaf one end is designed using hook, is positioned on pipe when being easily installed.Pipe shaft end and one The individual cutting ferrule being made up of rubber gasket and metal stamping lid coordinates assembling, is provided with two sulculuses, cutting ferrule on pipe axle is cylindrical Upper two feeler can be pushed to clamping in the groove, and can be maintained at steel ball in groove of the pipe axle with mandrel by the cutting ferrule.

Therefore, the utility model has advantages below：

1st, wear-resisting spring leaf realizes backlash compensation, realizes blind-mate of the steel to steel under non-high accuracy；

2nd, the sliding extension function of jackshaft is realized in the application of steel ball, and ensures that steel ball is trapped in the ditch of axle and pipe always Inside groove, will not be dropped out during shaft extension contracts and be scattered.

Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every The equivalent structure or equivalent flow conversion made using the utility model description, or directly or indirectly it is used in other phases The technical field of pass, is similarly included in scope of patent protection of the present utility model.

Claims (3)

1. a kind of backlash compensation elastic mechanism of slidingtype jackshaft, it is characterised in that including：Section fork（1）, two groove real axis （2）, slide steel ball（3）, wear-resisting spring leaf（4）, the fluted tube joint of welded type two fork（5）, the section fork, two groove real axis and weldering Connect between the fluted tube joint of formula two is pitched and be sequentially connected, an entirety, the welding are connected as between the section fork, two groove real axis The fluted tube joint fork of formula two has central siphon interior axle, between the two grooves real axis and the fluted tube joint fork shaft pipe interior axle of welded type two Be slidably connected, the fluted tube joint fork shaft pipe interior axle of the welded type two formed a rectangular parallelepiped space, the slip steel ball with it is resistance to Mill spring leaf is located in the space of the inside that the fluted tube joint fork shaft pipe interior axle of the welded type two is formed, and wear-resisting spring leaf Steel ball is slided to be respectively positioned on the inwall of the fluted tube joint fork shaft pipe interior axle of the welded type two with the wear-resisting spring leaf, it is described resistance to Mill spring leaf slides steel ball and is located at the surface of the wear-resisting spring leaf, and can be moved along the surface of wear-resisting spring leaf.

2. the backlash compensation elastic mechanism of slidingtype jackshaft according to claim 1, it is characterised in that including：It is described Slide steel ball and be respectively provided with 2 with wear-resisting spring leaf, the relative design on the inwall of the fluted tube joint of the welded type two fork.

3. the backlash compensation elastic mechanism of slidingtype jackshaft according to claim 1, it is characterised in that including：It is described Tail end is provided with hook before and after wear-resisting spring leaf（41）, one end is used to fix wear-resisting spring leaf in the fluted tube joint of welded type two Without sliding on fork shaft inner axial tube, the hook of the other end does not drop out groove for steel ball in sliding process.