CN209557636U - A kind of gearshift - Google Patents

Abstract

The utility model discloses a kind of gearshifts, including the shell that can be cooperatively connected with motor vehicle, the rotary shaft that can be connected with knob after stretching shell with part, cavity is formed between the rotary shaft and shell, elastic component is equipped in the cavity, the first tensioner abutted against with elastic component one end, and the second tensioner abutted against with rotary shaft or cavity top surface, when elastic component pushes the first tensioner to the second tensioner direction along the axis direction of rotary shaft, the second acting surface cooperation on the first acting surface and the second tensioner in first tensioner, applying active force radially of the axis of rotation.The design of the utility model structure is simple, is generating the active force for holding rotary shaft tightly radially of the axis of rotation, and overall structure consolidates, effectively, solves the problems, such as that rotary shaft is also easy to produce shaking, and then reduce the noise of knob sending, user experience is good.

Description

A kind of gearshift

Technical field

The utility model belongs to auto parts field, more particularly, to a kind of gearshift.

Background technique

With popularizing for automobile, the requirement that people experience car steering is higher and higher, and gearshift is the weight of motor vehicle One of component part is wanted, in car steering, the comfort level of shift control is to evaluate the important component of driving experience.At present Gearshift in the market is usually to be engaged between the live spindle being connected with knob and rotary sleeve, rotary sleeve Only axially supporting live spindle, do not playing the effect in radially firm live spindle, user when carrying out gear shift operation, Unnecessary shaking can occur for live spindle, generate biggish noise, and overall structure is not firm enough.

Summary of the invention

For overcome the deficiencies in the prior art, the utility model provide a kind of rotary shaft stabilized structure, knob-operated it is steady, The small gearshift of knob noise.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of gearshift, including can with it is motor-driven The shell that vehicle is cooperatively connected, and the part rotary shaft that can be connected with knob after stretching out shell, the rotary shaft and shell it Between form cavity, be equipped with elastic component in the cavity, the first tensioner abutted against with elastic component one end, and with rotary shaft or cavity The second tensioner that top surface abuts against, in elastic component along rotary shaft axis direction by the first tensioner to the second tensioner direction When promotion, the second acting surface on the first acting surface and the second tensioner in first tensioner cooperates, in rotary shaft It is radial to apply active force.The utility model is forming active force radially of the axis of rotation, and rotary shaft is held tightly, and rotation axle construction is steady Gu shaking will not be generated, when so that being connected to the knob on rotary shaft top, will not make a noise, user experience is good.

It further, include the tension assembly of the first tensioner and the second tensioner equipped with two groups in the cavity, it is described Elastic component offsets one group of tension assembly to cavity top surface, by another group of tension assembly to the boss phase set on rotary shaft lower end It supports.Tension assembly is all set on the top of cavity and bottom end, more firm to positioning radially of the axis of rotation, rotary shaft will not generate It shakes.

Further, first acting surface be set on the first tensioner inner wall tapered surface, the second acting surface be set on Second tensioner outer wall, the frustum face being adapted to tapered surface；Or first acting surface is the cone set on the first tensioner outer wall Shape face, the second acting surface are set on the second tensioner inner wall, the frustum face being adapted to tapered surface.Tapered surface and the occlusion of frustum face are matched It closes, as elastic component promotes the first tensioner to the second tensioner direction, stinging between the first acting surface and the second acting surface Resultant force is bigger, and the holding for forming a radial direction to rotary shaft outer wall acts on, and prevents rotary shaft from generating shaking；Certain first acting surface It can be interchanged with the specific structure of the second acting surface, as long as being able to achieve the extruding with elastic component, the two bite force increases Function.

Further, first tensioner is the hollow ring structure of both ends open, close to the one of the second tensioner Inner wall forms the first acting surface at end opening.

Further, the crack axially through setting is formed in first tensioner.Crack is covered outside rotary shaft First tensioner of wall provides deformation space, can change the size of inner ring to snap tight against the second tensioner, reaches and embraces The purpose of tight rotary shaft.

Further, second tensioner includes section in the ontology of " C " font and is located at one end face of ontology, along ontology Circumferential uniformly distributed multiple elastic slices form gap between adjacent elastic slice, and second acting surface is formed in elastic slice outer wall.Ontology The upper opening for forming circumferential direction is to provide deformation space to the second tensioner, can change the size of outer ring to snap tight against rotation Shaft；The elastic slice being intervally arranged then cooperates opening to provide bigger deformation space so that its to active force radially of the axis of rotation more Greatly, it can be tightly limited along the circumferential direction of rotary shaft generates shaking.

Further, the elastic component is spring.

The beneficial effects of the utility model are: structure design is simple, the work for holding rotary shaft tightly is being generated radially of the axis of rotation Firmly, overall structure is firm, effective, solves the problems, such as that rotary shaft is also easy to produce shaking, and then reduces knob sending Noise, user experience are good.

Detailed description of the invention

Fig. 1 is the part-structure sectional view of the utility model.

Fig. 2 is the schematic perspective view of the utility model.

Fig. 3 is the cross-sectional view of Fig. 2.

Fig. 4 is schematic enlarged-scale view at the A in Fig. 3.

Fig. 5 is the schematic perspective view of the second tensioner of the utility model.

Fig. 6 is the schematic perspective view one of the first tensioner of the utility model.

Fig. 7 is the schematic perspective view two of the first tensioner of the utility model.

Specific embodiment

In order to make those skilled in the art better understand the utility model, below in conjunction with the utility model reality The attached drawing in example is applied, the technical solutions in the embodiments of the present invention are clearly and completely described, it is clear that described Embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered When the range for belonging to the utility model protection.

As shown in figs. 1-7, a kind of gearshift, including that can be rotated with the shell 1 and rotary shaft 2 of motor vehicle assembly connection The bottom end of axis 2 has annular convex platform 21, and the top of rotary shaft 2 is inserted into from below shell 1, can after being pierced by from above shell 1 To be connected with knob (not shown).Cavity 3 is formed between 2 outer wall of 1 inner wall of shell and rotary shaft, rotary shaft 2 is located at cavity 3 Interior part is arranged with elastic component 4, and in this present embodiment, elastic component 4 is spring, and the top and bottom end of elastic component 4 are opened with two groups Tight component offsets respectively, and the structure of two groups of tension assemblies is identical, and every group of tension assembly includes first with the first acting surface 51 Tensioner 5 and the second tensioner 6 with the second acting surface 61, the first acting surface 51 and the second acting surface 61 can be engaged, In The radial of rotary shaft 2 applies active force to rotary shaft 2, and rotary shaft 2 is firmly held tightly, prevents rotary shaft 2 from shaking.

Specifically, as shown in fig. 6, the first tensioner 5 is the hollow ring structure of both ends open, one end opening inner wall The tapered surface being gradually expanded is formed, which is the first acting surface 51；As shown in fig. 7, in order to increase the first tensioner 5 with The deformation space that the interaction of second tensioner 6 deforms, can open up one along its axis direction in the first tensioner 5 Through the crack of entire short transverse 52.

As shown in figure 5, the second tensioner 6 include cross section in " C " font ontology 62 and from one end of ontology 62 towards Multiple elastic slices 63 of axially extending formation, multiple elastic slices 63 are uniformly distributed along the circumferential direction of ontology 62, shape between adjacent elastic slice 63 At gap 64, that is, 63 one end of multiple elastic slices for being spaced laying is connected with ontology 62, and one end forms free end, in each elastic slice 63 Free end outer wall forms diminishing frustum face, which is the second acting surface 61.Multiple elastic slices 63 increase second The acting surface that tensioner 6 and rotary shaft 2 are engaged, the opening in gap, " C " font ontology 62 between elastic slice 63, which cooperates, to be increased Second tensioner 6 generates the variation space of deformation when being acted on by first tensioner 5.

When elastic component 4 compresses the first tensioner 5 to 6 direction of the second tensioner, matched second acting surface of gradient 61 are engaged with the first acting surface 51, and with the increase of 4 thrust of elastic component, holding of first tensioner 5 to the second tensioner 6 Power is bigger, and multiple elastic slices 63 are shunk to the center position of rotary shaft 2, and the gap 64 between adjacent elastic slice reduces, the sheet of " C " font The opening of body 62 can also reduce, so that the second tensioner 6 applies biggish radial forces to the outer wall of rotary shaft 2, firmly embrace Tight rotary shaft 2.

Certainly, the structure of above-mentioned first tensioner 5 and the second tensioner 6 also can be interchanged, i.e. the first acting surface is to be located at The tapered surface of first tensioner outer wall, the second acting surface are the frustum face for being located at the second tensioner inner wall, being adapted to tapered surface, only It is able to achieve under the promotion of elastic component 4, can be engaged increasingly tighter.

When assembly, the first tensioner 5 and 4 end of elastic component positioned at 4 top tension assembly of elastic component offset, the second tensioning Part 6 and the roof of cavity 3 offset, positioned at the first tensioner and the 4 the other end phase of elastic component of 4 bottom end tension assembly of elastic component It supports, 21 upper surface of boss of the second tensioner and rotary shaft 2 offsets, when elastic component 4 releases stress, positioned at first of top Tight part 5, which moves up, firmly holds the second tensioner 6 tightly, and the first tensioner positioned at bottom end, which moves down, firmly holds the second tensioning tightly Part.

Above-mentioned specific embodiment is used to illustrate the utility model, rather than limits the utility model, In In the spirit and scope of protection of the claims of the utility model, to any modifications and changes that the utility model is made, all fall Enter the protection scope of the utility model.

Claims (7)

1. a kind of gearshift, including the shell (1) that can be cooperatively connected with motor vehicle, and part can after stretching shell (1) The rotary shaft (2) being connected with knob, it is characterised in that: form cavity (3) between the rotary shaft (2) and shell (1), the cavity (3) in be equipped with elastic component (4), the first tensioner (5) abutted against with elastic component (4) one end, and with rotary shaft (2) or cavity (3) the second tensioner (6) that top surface abuts against, in elastic component (4) along rotary shaft (2) axis direction by the first tensioner (5) The first acting surface (51) and the second tensioner (6) when being pushed to the second tensioner (6) direction, on first tensioner (5) On the second acting surface (61) cooperation, radial in rotary shaft (2) apply active force.

2. gearshift according to claim 1, it is characterised in that: being equipped with two groups in the cavity (3) includes first The tension assembly of tight part (5) and the second tensioner (6), the elastic component (4) is by one group of tension assembly to cavity (3) top surface phase It supports, another group of tension assembly is offseted to the boss (21) for being set to rotary shaft (2) lower end.

3. gearshift according to claim 1, it is characterised in that: first acting surface (51) is set on the first tensioning The tapered surface of part (5) inner wall, the second acting surface (61) be set on the second tensioner (6) outer wall, the frustum face that is adapted to tapered surface； Or first acting surface is the tapered surface set on the first tensioner (5) outer wall, the second acting surface is in the second tensioner Wall, the frustum face being adapted to tapered surface.

4. gearshift according to claim 1, it is characterised in that: first tensioner (5) is in both ends open Empty ring structure, place's inner wall open at one end close to the second tensioner (6) form the first acting surface (51).

5. gearshift according to claim 4, it is characterised in that: formed on first tensioner (5) and passed through along axial direction Wear the crack (52) set.

6. gearshift according to claim 1, it is characterised in that: second tensioner (6) includes section in " C " word The ontology (62) of shape and it is located at (62) one end face of ontology, along the circumferential uniformly distributed multiple elastic slices (63) of ontology (62), adjacent bullet Gap (64) are formed between piece (63), second acting surface (61) is formed in elastic slice (63) outer wall.

7. gearshift according to claim 1, it is characterised in that: the elastic component (4) is spring.