CN207772789U - Jack shaft, jack shaft component and vehicle - Google Patents

Abstract

The utility model discloses a kind of jack shaft, jack shaft component and vehicles.The jack shaft includes：Drive shaft, the drive shaft include the mandrel of external ball cage, internal spherical cage and cooperation between the external ball cage and the internal spherical cage；Jackshaft, the jackshaft are connected to one end far from the external ball cage of the internal spherical cage and extend to the direction far from the external ball cage, and the jackshaft and the internal spherical cage are coaxially arranged, and the jackshaft combines together with the internal spherical cage.Jack shaft according to the present utility model, by the way that jackshaft and internal spherical cage are combined together, it is ensured that it is opposing stationary between internal spherical cage and jackshaft, it thus effectively prevents generating vibration between drive shaft and jackshaft, to improve the NVH performances of vehicle, and then the user experience is improved.

Description

Jack shaft, jack shaft component and vehicle

Technical field

The utility model is related to automotive fields, in particular to a kind of jack shaft, jack shaft component and vehicle .

Background technology

The drive shaft of part vehicle is because of length (if long can caused by its intrinsic frequency relatively low generation resonance) or cloth at present It sets problem (interference), a jackshaft can be increased on the basis of drive shaft, eliminate the resonance of drive shaft in this manner Phenomenon or interference problem.

It is gap between drive shaft and jackshaft in general, being limited by slotted collar between drive shaft and jackshaft Cooperation, the two will generate slight vibration in operation process, and the part in these slight vibrations will be transmitted by steering To steering wheel, and the NVH performances of vehicle are influenced, causes client discontented.

Utility model content

The utility model is intended to solve one of above-mentioned technical problem in the prior art at least to a certain extent.For this purpose, The utility model proposes a kind of jack shafts, it is possible to prevente effectively from generating vibration between drive shaft and jackshaft.

The utility model also proposed a kind of jack shaft component with above-mentioned jack shaft.

The utility model also proposed a kind of vehicle with above-mentioned jack shaft component.

Include according to the jack shaft of the utility model embodiment：Drive shaft, the drive shaft include external ball cage, internal spherical cage And coordinate the mandrel between the external ball cage and the internal spherical cage；Jackshaft, the jackshaft are connected to the internal spherical cage One end far from the external ball cage simultaneously extends, the jackshaft and the coaxial cloth of the internal spherical cage to the direction far from the external ball cage It sets, and the jackshaft combines together with the internal spherical cage.

According to the jack shaft of the utility model embodiment, by the way that jackshaft and internal spherical cage combine together, Ke Yibao It is opposing stationary between card internal spherical cage and jackshaft, it thus effectively prevents generating vibration between drive shaft and jackshaft, to carry The NVH performances of vehicle are risen, and then the user experience is improved.

Some embodiments according to the present utility model, the internal spherical cage include：Annular peripheral wall and end Feng Bi, the end Envelope wall closes one end far from the external ball cage of the annular peripheral wall；

The jackshaft includes：Intermediate shaft body and transition, the transition are connected to the intermediate shaft body and institute Between the outer surface for stating end envelope wall.

Specifically, the transition includes：First transition and the second transition, first transition and the end Wall connection is sealed, second transition and the intermediate shaft body connect.

Further, the outer diameter of first transition is more than the outer diameter of second transition.

Further, bearing backstop end face is formed between first transition and second transition.

Optionally, the internal spherical cage, first transition, second transition and the coaxial cloth of intermediate shaft body It sets.

According to the jack shaft component of the utility model second aspect embodiment, the jack shaft is above-mentioned driving half Axis；The jack shaft component further includes：Annular bearing and bearing bracket stand, the annular bearing are set on second transition And it only is against bearing backstop endface, the bearing bracket stand is arranged the annular bearing.

According to the vehicle of the utility model third aspect embodiment, including above-mentioned jack shaft component.

Description of the drawings

Fig. 1 is the schematic diagram of jack shaft；

Fig. 2 is the decomposition diagram of internal spherical cage and jackshaft.

Reference numeral：

Jack shaft 10, drive shaft 1, external ball cage 11, internal spherical cage 12, annular peripheral wall 121, end envelope wall 122, mandrel 13, Dirt-proof boot 14, jackshaft 2, intermediate shaft body 21, the first transition 22, the second transition 23, bearing backstop end face 24, annular shaft Hold the outside baffle ring 5 of 3, bearing bracket stand 4, axis, axial inner shield ring 6.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and It should not be understood as indicating or imply relative importance or implicitly indicate the quantity of indicated technical characteristic.In addition, unless another There is specific regulation and limit, the terms such as term " installation ", " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, can It to be to be fixedly connected, may be a detachable connection, or integral；It can be directly connected, it can also be by between intermediary It connects connected, can be the interaction relationship of the connection or two elements inside two elements.For the ordinary skill of this field For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

With reference to Fig. 1-Fig. 2 detailed descriptions according to the jack shaft 10 of the utility model embodiment.

Referring to Fig.1 shown in-Fig. 2, the jack shaft 10 according to the utility model embodiment may include drive shaft 1 and centre Axis 2.

Specifically, as shown in Figure 1, drive shaft 1 may include external ball cage 11, internal spherical cage 12 and mandrel 13, internal spherical cage 12 with Gearbox is connected, and external ball cage 11 is connected with wheel, and mandrel 13 coordinates between external ball cage 11 and internal spherical cage 12.Further, in Countershaft 2 is connected to one end of the separate external ball cage 11 of internal spherical cage 12 and extends to the direction far from external ball cage 11, as shown in Fig. 2, Jackshaft 2 is connected to the right end of internal spherical cage 12 and extends to the right.

Preferably, jackshaft 2 and internal spherical cage 12 are coaxially arranged, to ensure that the power of gearbox is transferred to vehicle to the maximum extent Wheel, and jackshaft 2 combines together with internal spherical cage 12.In other words, can be between jackshaft 2 and internal spherical cage 12 one at Type can also be integrally fixed by welding manner, it is possible thereby to ensure the course of work in the utility model jack shaft 10 In, without relative motion between jackshaft 2 and internal spherical cage 12, therefore vibration would not be also generated therebetween, to be conducive to carry The NVH performances of vehicle are risen, and then promote user experience.

In some embodiments, it is additionally provided between external ball cage 11 and mandrel 13, between internal spherical cage 12 and mandrel 13 dust-proof Set 14, as shown in Fig. 2, dirt-proof boot 14 can play certain protective action, so as to effectively prevent dust, sundries, mud Etc. the important process position for falling into mandrel 13.

It can by the way that jackshaft 2 and internal spherical cage 12 combine together according to the jack shaft 10 of the utility model embodiment It is opposing stationary between internal spherical cage 12 and jackshaft 2 to ensure, i.e., drive shaft 1 is avoided from the root cause to be generated relatively with jackshaft 2 Movement is conducive to the NVH performances for promoting vehicle, in turn to effectively prevent generating vibration between drive shaft 1 and jackshaft 2 Promote user experience.

In some embodiments of the utility model, internal spherical cage 12 may include：Wall 122 is sealed in annular peripheral wall 121 and end, One end of the separate external ball cage 11 of 122 closed ring peripheral wall 121 of wall is sealed in end, as shown in Fig. 2, 122 closed ring of wall is sealed in end The right side of peripheral wall 121.

Jackshaft 2 may include：Intermediate shaft body 21 and transition, transition are connected between shaft body 21 and end envelope Between the outer surface of wall 122.Transition can be integrally formed part, and transition seals wall 122 with end with intermediate shaft body 21 Between can be integrally formed, can also be integrally fixed by welding manner.

Specifically, transition may include：First transition 22 and the second transition 23, the first transition 22 are sealed with end Wall 122 connects, and the second transition 23 is connect with intermediate shaft body 21.

Further, the outer diameter of the first transition 22 is more than the outer diameter of the second transition 23, the first transition 22, the second transition 23 and intermediate shaft body 21 are in multi-diameter shaft form, are thus conducive to reduce stress concentration.

Further, bearing backstop end face 24 is formed between the first transition 22 and the second transition 23, annular bearing 3 Inner ring left side backstop is on bearing backstop end face 24.

Optionally, internal spherical cage 12, the first transition 22, the second transition 23 and intermediate shaft body 21 are coaxially arranged, thus Be conducive to simplify manufacturing procedure, while being conducive to power being transmitted to ectosphere to the maximum extent from the gearbox on 12 right side of internal spherical cage The wheel in 11 left side of cage.

According to the jack shaft component of the utility model second aspect embodiment, jack shaft 10 is the drive of above-described embodiment Dynamic semiaxis 10, jack shaft component can also include：Annular bearing 3 and bearing bracket stand 4, annular bearing 3 are set in the second transition On 23, and the inner ring left end of annular bearing 3 is only against at bearing backstop end face 24, and bearing bracket stand 4 is arranged annular bearing 3.Such as Fig. 2 institutes Show, annular bearing 3 can be deep groove ball bearing, the outer ring right end of the right end backstop annular bearing 3 of bearing bracket stand 4, the outside baffle ring of axis 5 The outer ring left end of backstop annular bearing 3, the inner ring right end of 6 backstop annular bearing 3 of axial inner shield ring, is achieved in annular bearing 3 Axially position.By the way that annular bearing 3 is arranged, the rotation of jackshaft 2 can be made more steady, to further promote vehicle NVH performances.

According to the jack shaft component of the vehicle of the utility model third aspect embodiment, including above-described embodiment.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example It is contained at least one embodiment or example of the utility model.In the present specification, schematic expression of the above terms Necessarily it is directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be It can be combined in any suitable manner in any one or more embodiments or example.In addition, those skilled in the art can be by this Different embodiments or examples described in specification are engaged and are combined.

Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model Inside it can make changes, modifications, alterations, and variations to the above described embodiments.

Claims (9)

1. a kind of jack shaft, which is characterized in that including：

Drive shaft, the drive shaft include the core of external ball cage, internal spherical cage and cooperation between the external ball cage and the internal spherical cage Axis；

Jackshaft, the jackshaft are connected to one end far from the external ball cage of the internal spherical cage and to far from the external ball cages Direction extend, the jackshaft and the internal spherical cage are coaxially arranged, and the jackshaft permeates with the internal spherical cage Body.

2. jack shaft according to claim 1, which is characterized in that the internal spherical cage includes：Annular peripheral wall and end envelope Wall, the end envelope wall close one end far from the external ball cage of the annular peripheral wall；

The jackshaft includes：Intermediate shaft body and transition, the transition are connected to the intermediate shaft body and the end Portion seals between the outer surface of wall.

3. jack shaft according to claim 2, which is characterized in that the transition includes：First transition and second Transition, first transition are connect with end envelope wall, and second transition and the intermediate shaft body connect.

4. jack shaft according to claim 3, which is characterized in that the outer diameter of first transition is more than described The outer diameter of second transition.

5. jack shaft according to claim 4, which is characterized in that first transition and second transition it Between form bearing backstop end face.

6. jack shaft according to claim 3, which is characterized in that the internal spherical cage, first transition, described Two transitions and the intermediate shaft body are coaxially arranged.

7. a kind of jack shaft component, which is characterized in that include the jack shaft according to any one of claim 1-6.

8. jack shaft component according to claim 7, which is characterized in that the jack shaft is according to claim 5 Described in jack shaft；

The jack shaft component further includes：Annular bearing and bearing bracket stand, the annular bearing are set in second transition Above and it only is against bearing backstop endface, the bearing bracket stand is arranged the annular bearing.

9. a kind of vehicle, which is characterized in that include the jack shaft component according to any one of claim 7-8.