CN213393112U

CN213393112U - Transmission shaft of automobile wiper system

Info

Publication number: CN213393112U
Application number: CN202021496793.8U
Authority: CN
Inventors: 何亚丽; 侯淼淼; 万付国
Original assignee: Ningbo Kingtai Precision Machinery Co Ltd
Current assignee: Ningbo Kingtai Precision Machinery Co Ltd
Priority date: 2020-07-25
Filing date: 2020-07-25
Publication date: 2021-06-08
Anticipated expiration: 2030-07-25

Abstract

The application relates to a transmission shaft of a wiper system for an automobile, which relates to the field of shaft machining and aims to solve the problem that the process of disassembling and installing the transmission shaft and a connecting plate is troublesome when the transmission shaft is replaced at present; one end of the clamping part, which is far away from the shaft body, is fixedly connected with a pressing part, the cross-sectional dimension of the pressing part is smaller than that of the clamping part, and the pressing part is provided with a thread; the compressing part is provided with a compressing plate in a matching way, and the compressing plate is in threaded connection with the compressing part. This application has when changing the transmission shaft, and the operation is more convenient effect.

Description

Transmission shaft of automobile wiper system

Technical Field

The application relates to the field of axle type processing, especially, relate to a windscreen wiper system transmission shaft for car.

Background

The wiper system is a system which is installed on an automobile and used for scraping rainwater and dust attached to a windshield of the automobile so as to improve the visibility of driving, and ensure the safety of the automobile, and is important equipment on the automobile.

The transmission shaft is generally for installing on the windscreen wiper motor, is provided with the installation shell on the windscreen wiper motor, and the rigid coupling has the connecting plate on the tip that the transmission shaft is located the installation shell, is provided with in the installation shell simultaneously and rotates the wheel, rotates the wheel through motor drive and rotates, is provided with the transfer line between connecting plate and the rotation wheel, rotates through rotating the wheel, drives the reciprocal rotation of transmission shaft.

With respect to the related art in the above, the inventors consider that: after using a period of time, corrosion or the phenomenon of damage appear easily in transmission shaft or connecting plate, need change it, and the connecting plate generally is the riveting with the transmission shaft, installs connecting plate and transmission shaft to and all be more troublesome when dismantling the connecting plate from the transmission shaft, during the change, need pull down the connecting plate along with the transmission shaft is together, and the operation that changes is more troublesome to it, and, causes the waste of material easily.

SUMMERY OF THE UTILITY MODEL

In order to change the transmission shaft more conveniently, this application provides a windscreen wiper system transmission shaft for car.

The application provides a windscreen wiper system transmission shaft for car adopts following technical scheme:

a transmission shaft of a wiper system for an automobile is integrally formed and comprises a shaft body, wherein the end part of the shaft body is fixedly connected with a clamping part, the peripheral surface of the clamping part comprises a plurality of planes and a plurality of cambered surfaces, the planes and the cambered surfaces are alternately connected, and the section size of the clamping part is smaller than that of the shaft body; one end of the clamping part, which is far away from the shaft body, is fixedly connected with a pressing part, the cross-sectional dimension of the pressing part is smaller than that of the clamping part, and the pressing part is provided with a thread; the compressing part is provided with a compressing plate in a matching way, and the compressing plate is in threaded connection with the compressing part.

Through adopting above-mentioned technical scheme, when installing this transmission shaft, at first install the transmission shaft with the connecting plate on, set up the through-hole that corresponds with connecting portion on the connecting plate, connecting portion pass from the through-hole, with pressure strip threaded connection in the portion that compresses tightly, the pressure strip compresses tightly fixedly with the terminal surface cooperation of axis body to the connecting plate, it is comparatively convenient to install fixedly the connecting plate, when needs change transmission shaft or connecting plate, it is comparatively convenient to dismantle the operation of installation to connecting plate and transmission shaft.

Preferably, a connecting part is arranged at one end of the shaft body, which is far away from the clamping part, and a plurality of limiting grooves are formed in the peripheral surface of the connecting part; the one end rigid coupling that the axis body was kept away from to connecting portion has the fixed part, and the cooperation is provided with on the fixed part and compresses tightly the cap, compresses tightly cap and fixed part threaded connection.

Through adopting above-mentioned technical scheme, when installing windshield wiper and transmission shaft, with the spacing edge alignment that corresponds on spacing groove on the connecting portion and the windshield wiper, establish the transmission shaft with the windshield wiper cover on, later will compress tightly the cap and screw up on the fixed part, fix the windshield wiper through compressing tightly the cap, it is comparatively convenient to carry out the process of installing to the windshield wiper, guarantees that the windshield wiper is along with transmission shaft pivoted synchronism, comparatively stable to the fixed of windshield wiper.

Preferably, the connecting portion is a platform-shaped structure, and a cross-sectional dimension of an end of the connecting portion, which is far away from the shaft body, is smaller than a cross-sectional dimension of an end of the connecting portion, which is close to the shaft body.

Through adopting above-mentioned technical scheme, with the wiper install on connecting portion back, reduce the phenomenon that has the clearance between wiper and the connecting portion, be platform column structure through setting up connecting portion, there is certain adaptation volume to the size of the mounting hole of wiper, when there is certain change in the size of the mounting hole on the wiper, the compactness of being connected between wiper and the connecting portion is difficult to appear the phenomenon of rocking relatively between wiper and the transmission shaft.

Preferably, an installation part is arranged between the shaft body and the connecting part, and a sealing cover is arranged at a position corresponding to the installation part; the installation part is provided with a clamping groove, a clamping spring is arranged at the position of the clamping groove, and a limiting plate is arranged between the clamping spring and the sealing cover.

Through adopting above-mentioned technical scheme, accomplish the installation back to windscreen wiper motor, the transmission shaft is worn out outside to the automobile body, and the installation department is located the automobile body outside, and the sealing boot cover is established on the installation department, later establishes the installation department with the limiting plate cover, installs the position department of joint groove with the jump ring, prescribes a limit to the position of limiting plate through the jump ring, and limiting plate and sealing boot butt are fixed the sealing boot, and the process of installing is comparatively convenient, guarantees the stability of sealing boot installation.

Preferably, an accommodating groove is formed in the transmission shaft along the axis direction of the shaft body, one end of the accommodating groove is communicated with the end face of the fixing part, and the other end of the accommodating groove is communicated to the position corresponding to the clamping part; first branch hole has been seted up on the joint portion outer peripheral face, first branch hole and holding tank intercommunication.

Through adopting above-mentioned technical scheme, pour into emollient into the holding tank, the through-liquid hole on the connecting plate aligns with first branch hole, and emollient flows to the hookup location department of connecting rod and connecting plate through first branch hole and through-liquid hole, lubricates the hookup location of connecting rod and connecting plate, reduces the phenomenon that wearing and tearing appear in its hookup location department, guarantees its pivoted smoothness nature.

Preferably, the shaft body side is provided with a second branch hole, the second branch hole is communicated with the accommodating groove, and the second branch hole is located at the connecting position when the shaft body is installed.

Through adopting above-mentioned technical scheme, emollient flows to between the axis body and the lateral wall of installation shell through second branch hole, lubricates the hookup location department of axis body and installation shell, and wearing and tearing appear in the reduction, guarantee pivoted smoothness nature.

Preferably, a sealing groove is formed in the end face of the fixing portion, and the sealing groove is annular.

Through adopting above-mentioned technical scheme, through set up the sealed edge that corresponds with the seal groove on compressing tightly the cap for sealed edge inlays in the seal groove, makes to compress tightly between cap and the fixed part inseparabler, and is better to the sealed effect of holding tank, reduces the phenomenon that the emollient leakage in the holding tank appears or outside rainwater infiltrates into the holding tank.

Preferably, one end of the opening of the pressing cap is rotatably connected with a pressing ring.

Through adopting above-mentioned technical scheme, when using the compression cap to fix the windshield wiper, the clamp ring butt is on the windshield wiper, rotates the compression cap and screws up it when, reduces the circumstances that compresses tightly cap and windshield wiper direct butt under, produces the phenomenon of wearing and tearing to the windshield wiper surface, screws up when fixing the windshield wiper to the compression cap, and it is more convenient to operate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the connecting plate and the transmission shaft are connected, the operation is convenient, the connecting plate is sleeved on the clamping part and then is fixed through the pressing plate, the operation is convenient, and when the transmission shaft or the connecting plate needs to be replaced, the operation of disassembling and assembling the connecting plate and the transmission shaft is convenient;

2. the connecting part is arranged, so that the connection tightness between the windshield wiper and the connecting part can be ensured when the windshield wiper is installed, the windshield wiper is pressed and fixed through the pressing cap, and when the pressing cap is rotated to screw the windshield wiper through the pressing ring of the social group, the phenomenon that the pressing cap wears the windshield wiper is reduced, the operation of fixing the windshield wiper is more convenient, the phenomenon that a gap exists between the windshield wiper and the connecting part is reduced when the windshield wiper is installed on the connecting part, and the phenomenon that the windshield wiper and the transmission shaft shake relatively is reduced;

3. through the holding tank that sets up, in the use, pour into emollient in the holding tank, through first bifurcation hole and the liquid through hole that sets up, to the hookup location department between connecting plate and the connecting rod lubricate, wearing and tearing appear in the reduction, guarantee its pivoted smoothness nature and stability, through the second bifurcation hole that sets up, lubricate the hookup location department of axis body and installation shell, reduce the wearing and tearing between transmission shaft and the installation shell, the rotation of transmission shaft is more smooth and stable.

Drawings

FIG. 1 is a schematic structural view of a driving shaft in use;

FIG. 2 is a schematic structural view of a propeller shaft;

FIG. 3 is a schematic view of the connection structure of the transmission shaft and the connection plate;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic view for showing a mounting structure of a wiper blade

FIG. 6 is an enlarged schematic view of portion B of FIG. 5;

FIG. 7 is a schematic structural view of the impaction cap;

fig. 8 is an enlarged schematic view of a portion C in fig. 7.

Description of reference numerals: 1. a wiper motor; 11. a drive motor; 12. mounting a shell; 13. a worm; 14. a turbine; 15. a connecting plate; 151. a through hole; 152. connecting holes; 153. a liquid through hole; 16. a driving strap; 2. a wiper; 21. mounting holes; 22. a limiting edge; 3. a drive shaft; 31. a shaft body; 32. a clamping part; 321. a plane; 322. a cambered surface; 33. a pressing part; 331. a compression plate; 34. a connecting portion; 341. a limiting groove; 35. a fixed part; 351. a sealing groove; 36. an installation part; 361. a clamping groove; 362. a clamp spring; 363. a limiting plate; 4. a compression cap; 41. a compression ring; 42. mounting grooves; 43. mounting edges; 44. a sealing edge; 5. a sealing cover; 6. accommodating grooves; 61. a first branch hole; 62. a second branch hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses windscreen wiper system transmission shaft for car. Referring to fig. 1, a transmission shaft 3 is installed on a wiper motor 1, the wiper motor 1 includes a driving motor 11, one end of an output shaft of the driving motor 11 is provided with an installation shell 12, and an output end of the driving motor 11 penetrates into the installation shell 12; a worm 13 is fixedly connected to the end part of the output end of the driving motor 11 in the mounting shell 12; a worm wheel 14 is rotatably supported in the mounting shell 12, and the worm wheel 14 is meshed with the worm 13; the mounting shell 12 is rotatably supported with a transmission shaft 3, the rotation axis of the transmission shaft 3 is parallel to the rotation axis of the turbine 14, one end of the transmission shaft 3 is positioned in the mounting shell 12, and the other end extends out of the mounting shell 12; a connecting plate 15 is fixedly connected to the end part of the transmission shaft 3 in the mounting shell 12, a transmission piece 16 is rotatably connected to the end part of the connecting plate 15, and the other end of the transmission piece 16 is rotatably connected to the edge position on the side surface of the turbine 14; the wiper motor 1 is installed in the automobile body, and the transmission shaft 3 is located the tip of installing 12 outsides of shell and stretches out to the automobile body outside, and the wiper 2 is installed on the transmission shaft 3 is located the tip of automobile body outsides.

Referring to fig. 2 and 3, the transmission shaft 3 is integrally formed, the transmission shaft 3 includes a shaft body 31, a clamping portion 32 is fixedly connected to an end portion of the shaft body 31, and a pressing portion 33 is fixedly connected to an end of the clamping portion 32 away from the shaft body 31; the shaft body 31 is rotatably supported on the mounting shell 12, the clamping portion 32 is located in the mounting shell 12, and the cross section of the shaft body 31 is circular; referring to fig. 3 and 4, the circumferential surface of the clamping portion 32 includes a plane 321 and an arc surface 322, wherein the plane 321 and the arc surface 322 have two sections, the plane 321 and the arc surface are alternately connected, and the arc surface 322 and the side surface of the shaft body 31 are located on the same circumferential surface; the section of the pressing part 33 is circular, a thread is arranged on the pressing part 33, a pressing plate 331 is arranged on the pressing part 33 in a matching way, and the pressing plate 331 is in threaded connection with the pressing part 33; the connecting plate 15 is provided with a through hole 151 adapted to the engaging portion 32.

During the installation, joint portion 32 passes in the through-hole 151 on the connecting plate 15, screw up pressure strip 331 on compressing tightly portion 33, fix connecting plate 15, later install the connecting rod, when needs change transmission shaft 3 or connecting plate 15, can be comparatively convenient dismantle and install connecting plate 15 and transmission shaft 3, can be comparatively convenient change transmission shaft 3 and connecting plate 15 alone, the process of changing carries out, the operation is comparatively convenient, the phenomenon that the reduction produced the material waste in changing the in-process to it.

Referring to fig. 5 and 6, a connecting portion 34 is disposed at an end of the shaft body 31 away from the fastening portion 32, the connecting portion 34 is mounted with the wiper 2, the connecting portion 34 has a circular truncated cone-shaped structure, and a diameter of a cross section of the connecting portion 34 away from the end of the shaft body 31 is smaller than a diameter of a cross section of the connecting portion near the end of the shaft body 31; a plurality of limit grooves 341 are formed on the circumferential surface of the connecting part 34; a mounting hole 21 is formed in the corresponding position of the windshield wiper 2, the shape of the mounting hole 21 is matched with that of the connecting part 34, and a limiting edge 22 corresponding to the limiting groove 341 is arranged on the inner circumferential surface of the mounting hole 21; a fixing part 35 is fixedly connected to an end face of the connecting part 34 far away from the shaft body 31, and the fixing part 35 is provided with threads; the fixing portion 35 is provided with a pressing cap 4 in a matching mode, and the pressing cap 4 is in threaded connection with the fixing portion 35.

When installing windshield wiper 2 and transmission shaft 3, spacing in the mounting hole 21 is aimed at along 22 and the spacing groove 341 on the transmission shaft 3 on windshield wiper 2, establish transmission shaft 3 with 2 covers of windshield wiper, later will compress tightly cap 4 and screw up on the fixed plate, its tip and 2 butts of windshield wiper, compress tightly windshield wiper 2, the completion is fixed to windshield wiper 2, the process of installing is carried out to windshield wiper 2 comparatively convenient, it is round platform column structure to set up connecting portion 34, can guarantee the compactness of being connected between windshield wiper 2 and the axis of rotation, there is relative pivoted clearance between reduction windshield wiper 2 and the transmission shaft 3, installation to windshield wiper 2 is more stable.

Referring to fig. 5 and 7, a pressing ring 41 is arranged at one end of the pressing cap 4, which is attached to the wiper 2, the pressing ring 41 is rotatably connected to the pressing cap 4, and the pressing ring 41 is sleeved outside the pressing cap 4; referring to fig. 7 and 8, an installation groove 42 is formed in the outer side surface of the end portion of the compression cap 4, an installation edge 43 adapted to the installation groove 42 is fixedly connected to the inner side surface of the end portion of the compression ring 41, and the installation edge 43 is embedded in the installation groove 42; when tightening and pressing cap 4 and fixing windshield wiper 2, reduce and press and produce wearing and tearing between cap 4 and the windshield wiper 2, reduce the phenomenon that department windshield wiper 2 caused the damage.

Referring to fig. 5, a mounting portion 36 is disposed between the shaft body 31 and the connecting portion 34, the mounting portion 36 is fixed to the shaft body 31, and the connecting portion 34 is fixed to an end portion of the mounting portion 36 away from the shaft body 31; the mounting part 36 is provided with a sealing cover 5 in a matching way, and the sealing cover 5 is sleeved on the mounting part 36; the mounting part 36 is provided with a clamping groove 361, and a clamping spring 362 is arranged at the position of the clamping groove 361; a limiting plate 363 for fixing the sealing cover 5 is arranged between the clamp spring 362 and the sealing cover 5; when installing the sealed cowling 5, establish the sealed cowling 5 cover on the axis body 31, the tip butt of sealed cowling 5 is on the automobile body, later establish the axis body 31 with the limiting plate 363 cover on to installation jump ring 362 for limiting plate 363 and the 5 tip butt of sealed cowling, it is comparatively stable to the installation of sealed cowling 5.

Referring to fig. 2, an accommodating groove 6 is formed in the transmission shaft 3, the accommodating groove 6 is arranged along the length direction of the transmission shaft 3, one end of the accommodating groove 6 is communicated with the end surface of the transmission shaft 3 facing outward, and the other end is communicated to the position corresponding to the clamping portion 32; referring to fig. 3 and 4, the clamping portion 32 is provided with a first branch hole 61, one end of the first branch hole 61 is communicated with the accommodating groove 6, and the other end is communicated with the outer side of the connecting portion 34; a liquid through hole 153 is formed in the side wall of the through hole 151 of the connecting plate 15 at a position corresponding to the first branch hole 61; the connecting plate 15 is provided with a connecting hole 152 at a position corresponding to the driving strap 16, and the other end of the liquid through hole 153 is communicated with the connecting hole 152.

Accomplish the installation back, add emollient in holding tank 6, through compressing tightly closing of cap 4 to holding tank 6, emollient in holding tank 6 flows to logical liquid hole 153, and emollient flows to the hookup location department of connecting plate 15 and connecting rod, lubricates its hookup location department, reduces to rotate wearing and tearing appear between in-process connecting rod and the connecting plate 15 for its pivoted process is more stable.

Referring to fig. 3 and 4, a second branch hole 62 is formed in a position, connected with the housing, of the shaft body 31, one end of the second branch hole 62 is communicated with the accommodating groove 6, and the other end of the second branch hole 62 is communicated to the outer peripheral surface of the shaft body 31.

Referring to fig. 5 and 7, a sealing groove 351 is formed in an end face of the fixing portion 35, a sealing edge 44 is fixedly connected to a position corresponding to the sealing groove 351 on an inner side face of the pressing cap 4, and when the pressing cap 4 is screwed on the fixing portion 35, the sealing edge 44 is embedded in the sealing groove 351, so that the accommodating groove 6 is sealed more tightly, the phenomenon of leakage is reduced, and the phenomenon that lubricant in the accommodating groove 6 flows out or rainwater outside flows into the accommodating groove 6 is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a windscreen wiper system transmission shaft for car, whole integrated into one piece of transmission shaft (3), its characterized in that: the connecting shaft comprises a shaft body (31), wherein a clamping part (32) is fixedly connected to the end part of the shaft body (31), the peripheral surface of the clamping part (32) comprises a plurality of planes (321) and a plurality of cambered surfaces (322), the planes (321) and the cambered surfaces (322) are alternately connected, and the section size of the clamping part (32) is smaller than that of the shaft body (31); one end, far away from the shaft body (31), of the clamping portion (32) is fixedly connected with a pressing portion (33), the section size of the pressing portion (33) is smaller than that of the clamping portion (32), and the pressing portion (33) is provided with threads; the pressing part (33) is provided with a pressing plate (331) in a matching way, and the pressing plate (331) is in threaded connection with the pressing part (33).

2. The automotive wiper system drive shaft according to claim 1, characterized in that: a connecting part (34) is arranged at one end of the shaft body (31) far away from the clamping part (32), and a plurality of limiting grooves (341) are formed in the peripheral surface of the connecting part (34); one end of the connecting part (34) far away from the shaft body (31) is fixedly connected with a fixing part (35), the fixing part (35) is provided with a pressing cap (4) in a matching mode, and the pressing cap (4) is in threaded connection with the fixing part (35).

3. The automotive wiper system drive shaft according to claim 2, wherein: the connecting part (34) is of a platform-shaped structure, and the cross-sectional dimension of one end, far away from the shaft body (31), of the connecting part is smaller than that of one end, close to the shaft body (31).

4. The automotive wiper system drive shaft according to claim 2, wherein: an installation part (36) is arranged between the shaft body (31) and the connecting part (34), and a sealing cover (5) is arranged at the position corresponding to the installation part (36); a clamping groove (361) is formed in the mounting portion (36), a clamping spring (362) is arranged at the position of the clamping groove (361), and a limiting plate (363) is arranged between the clamping spring (362) and the sealing cover (5).

5. The automotive wiper system drive shaft according to claim 2, wherein: an accommodating groove (6) is formed in the transmission shaft (3) along the axis direction of the shaft body (31), one end of the accommodating groove (6) is communicated with the end face of the fixing part (35), and the other end of the accommodating groove (6) is communicated to the corresponding position of the clamping part (32); first branch holes (61) are formed in the outer peripheral surface of the clamping portion (32), and the first branch holes (61) are communicated with the accommodating groove (6).

6. The automotive wiper system drive shaft according to claim 5, wherein: a second branch hole (62) is formed in the side face of the shaft body (31), the second branch hole (62) is communicated with the accommodating groove (6), and the second branch hole (62) is located at the connecting position when the shaft body (31) is installed.

7. The automotive wiper system drive shaft according to claim 5, wherein: a sealing groove (351) is formed in the end face of the fixing portion (35), and the sealing groove (351) is annular.

8. The automotive wiper system drive shaft according to claim 2, wherein: one end of the opening of the pressing cap (4) is rotatably connected with a pressing ring (41).