CN215204805U

CN215204805U - Transmission mechanism for automobile windscreen wiper arm

Info

Publication number: CN215204805U
Application number: CN202121737124.XU
Authority: CN
Inventors: 陈俊杰; 冯善美; 丁耀友
Original assignee: Ningbo Nanxing Auto Part Co ltd
Current assignee: Ningbo Nanxing Auto Part Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-12-17
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a drive mechanism for automobile windscreen wiper arm relates to auto-parts technical field. The connecting device comprises a mounting bracket, the lower surface of mounting bracket is provided with the reducing gear box, reducing gear box input shaft and driving motor output shaft fixed connection, first connecting plate is installed through lock nut to the output shaft upper surface of reducing gear box, install on the first connecting plate and be provided with two first universal ball joints, first universal ball joint is from last to installing in proper order down and is installed long connecting rod and short connecting rod, install the second connecting plate through second universal ball joint on the end that driving motor was kept away from to long connecting rod, install first axle bed through first pivot on the second connecting plate. The utility model discloses a first universal ball joint, second universal ball joint and third universal ball joint make this drive mechanism transmission process more smooth and easy, and effectively avoid dust impurity to get into, ensure that this drive mechanism normally rotates, and is not fragile, increase of service life.

Description

Transmission mechanism for automobile windscreen wiper arm

Technical Field

The utility model relates to the technical field of auto-parts, specifically be a drive mechanism for automobile windscreen wiper arm.

Background

Along with the improvement of the living standard and the acceleration of the life rhythm of people, people gradually take the car as a tool for riding instead of walk, so that the working and traveling efficiency of people is improved, and the life quality of people is improved. When the conditions of wind, rain, snow and frost are caused, if the sight line of the window of a driver is not good when the driver drives the automobile, serious accident consequences can be caused, and the windscreen wiper of the automobile plays an immeasurable role,

however, the poor sealed effect of current automobile windscreen wiper arm's drive mechanism can get into a large amount of impurity when using, leads to drive mechanism to rotate unsmoothly, perhaps can't rotate, influences the normal use of windscreen wiper arm, and the windscreen wiper arm damages with higher speed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a drive mechanism for automobile windscreen wiper arm possesses the transmission process more smoothly, and effectively avoids dust impurity to get into, ensures that this drive mechanism normally rotates, and is not fragile, increase of service life's advantage to the drive mechanism who solves the windscreen wiper arm seals the effect not good, can get into a large amount of impurity, influences the normal use of windscreen wiper arm, the problem of windscreen wiper arm damage with higher speed.

For realizing that transmission process is more smooth and easy, and effectively avoid dust impurity to get into, ensure that this drive mechanism normally rotates, it is not fragile, increase of service life's purpose, the utility model provides a following technical scheme: a transmission mechanism for an automobile windscreen wiper arm comprises a mounting frame, wherein a reduction gearbox is arranged on the lower surface of the mounting frame, an input shaft of the reduction gearbox is fixedly connected with an output shaft of a driving motor, a first connecting plate is arranged on the upper surface of the output shaft of the reduction gearbox through a locking nut, two first universal ball joints are arranged on the first connecting plate, a long connecting rod and a short connecting rod are sequentially arranged on the first universal ball joints from top to bottom, a second connecting plate is arranged on the end, away from the driving motor, of the long connecting rod through a second universal ball joint, a first shaft seat is arranged on the second connecting plate through a first rotating shaft, the first shaft seat is fixedly connected with the left side surface of the mounting frame through a short pipe, a third connecting plate is arranged on the end, away from the driving motor, of the short connecting rod through a third universal ball joint, and a second shaft seat is arranged on the third connecting plate through a second rotating shaft, the second shaft seat is fixedly connected with the right side face of the mounting frame through a long pipe, the bearings are installed in the lower surfaces of the first rotating shaft and the second rotating shaft through retaining rings, the connectors are installed on the lower surfaces of the bearings, and shaft pin sealing rings are arranged on the outer surfaces of the first rotating shaft and the second rotating shaft corresponding to the bearings.

As an optimal technical scheme of the utility model, the reducing gear box passes through locking bolt fixed mounting in the mounting bracket lower surface.

As a preferred technical scheme of the utility model, first universal ball connects to and all is provided with first dust seal circle between the first universal ball joint from top to bottom between the first connecting plate.

As an optimal technical scheme of the utility model, all be provided with the dustproof sealing washer of second between second connecting plate upper surface and second universal ball joint lower surface and third connecting plate upper surface and the third universal ball joint lower surface.

As an optimal technical scheme of the utility model, all be provided with the elastic washer between second connecting plate lower surface and primary shaft seat upper surface and third connecting plate lower surface and the secondary shaft seat upper surface.

As an optimized technical scheme of the utility model, be provided with the plain washer between buckle upper surface and the bearing lower surface.

Compared with the prior art, the utility model provides a drive mechanism for automobile windscreen wiper arm possesses following beneficial effect:

this a drive mechanism for automobile windscreen wiper arm makes long connecting rod, first connecting plate, second connecting plate, transmission process between short connecting rod and the third connecting plate more smooth and easy through setting up first universal ball joint, second universal ball joint and third universal ball joint, and effectively avoids during dust impurity gets into first universal ball joint, second universal ball joint and third universal ball joint, ensures this drive mechanism normal rotation, and is not fragile, increase of service life.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a mounting frame; 2. a reduction gearbox; 3. a drive motor; 4. locking the nut; 5. a first connecting plate; 6. the first universal ball joint; 7. a long connecting rod; 8. a short connecting rod; 9. a second ball-and-socket joint; 10. a second connecting plate; 11. a first rotating shaft; 12. a first shaft seat; 13. a short pipe; 14. a third ball joint; 15. a third connecting plate; 16. a second rotating shaft; 17. a second shaft base; 18. a long tube; 19. a retaining ring; 20. a bearing; 21. a connector; 22. a shaft pin sealing ring; 23. locking the bolt; 24. a first dust seal ring; 25. a second dust seal ring; 26. an elastic washer; 27. a flat washer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model discloses a transmission mechanism for a wiper arm of an automobile, which comprises an installation frame 1, wherein a reduction gearbox 2 is arranged on the lower surface of the installation frame 1, an input shaft of the reduction gearbox 2 is fixedly connected with an output shaft of a driving motor 3, a first connecting plate 5 is arranged on the upper surface of the output shaft of the reduction gearbox 2 through a locking nut 4, two first universal ball joints 6 are arranged on the first connecting plate 5, a long connecting rod 7 and a short connecting rod 8 are sequentially arranged on the first universal ball joints 6 from top to bottom, a second connecting plate 10 is arranged on the end of the long connecting rod 7 far away from the driving motor 3 through a second universal ball joint 9, a first shaft seat 12 is arranged on the second connecting plate 10 through a first rotating shaft 11, the first shaft seat 12 is fixedly connected with the left side surface of the installation frame 1 through a short pipe 13, short connecting rod 8 keeps away from and installs third connecting plate 15 through third universal ball joint 14 on the end of driving motor 3, install second shaft seat 17 through second pivot 16 on the third connecting plate 15, second shaft seat 17 is through long tube 18 and mounting bracket 1 right flank fixed connection, all install bearing 20 through buckle 19 in first pivot 11 and the 16 lower surfaces of second pivot, the lower surface mounting of bearing 20 has connector 21, bearing 20 corresponding first pivot 11 all is provided with pivot sealing washer 22 with the 16 surface of second pivot.

Specifically, the reduction gearbox 2 is fixedly arranged on the lower surface of the mounting frame 1 through a locking bolt 23.

In this embodiment, the lock bolt 23 facilitates the disassembly and assembly between the reduction gearbox 2 and the mounting frame 1.

Specifically, first dustproof sealing rings 24 are arranged between the first universal ball joint 6 and the first connecting plate 5 and between the upper first universal ball joint 6 and the lower first universal ball joint 6.

In this embodiment, the first dustproof sealing ring 24 effectively prevents dust and impurities from entering the first universal ball joint 6.

Specifically, second dustproof sealing rings 25 are arranged between the upper surface of the second connecting plate 10 and the lower surface of the second universal ball joint 9 and between the upper surface of the third connecting plate 15 and the lower surface of the third universal ball joint 14.

In this embodiment, the second dustproof sealing ring 25 effectively prevents dust and impurities from entering the second and

third ball joints

9 and 14.

Specifically, elastic gaskets 26 are arranged between the lower surface of the second connecting plate 10 and the upper surface of the first shaft seat 12 and between the lower surface of the third connecting plate 15 and the upper surface of the second shaft seat 17.

In this embodiment, the elastic washer 26 prevents dust and impurities from entering the first shaft seat 12 and the second shaft 16.

Specifically, a flat washer 27 is disposed between the upper surface of the retaining ring 19 and the lower surface of the bearing 20.

In this embodiment, the flat washer 27 provides a good seal between the upper surface of the retaining ring 19 and the lower surface of the bearing 20.

The utility model discloses a theory of operation and use flow: when in use, the driving motor 3 drives the input shaft of the reduction gearbox 2 to rotate, the output shaft of the reduction gearbox 2 drives the first connecting plate 5 to rotate, the first connecting plate 5 drives the long connecting rod 7 and the short connecting rod 8 to rotate through the first universal ball joint 6, the long connecting rod 7 drives the second connecting plate 10 to rotate through the second universal ball joint 9, the second connecting plate 10 drives the first shaft seat 12 to rotate through the first rotating shaft 11, meanwhile, the short connecting rod 8 drives the third connecting plate 15 to rotate through the third universal ball joint 14, the third connecting plate 15 drives the second shaft seat 17 to rotate through the second rotating shaft 16, so that the transmission process among the long connecting rod 7, the first connecting plate 5, the second connecting plate 10, the short connecting rod 8 and the third connecting plate 15 is smoother, the first dustproof sealing ring 24 effectively prevents dust impurities from entering the first universal ball joint 6, the second dustproof sealing ring 25 effectively prevents dust impurities from entering the second universal ball joint 9 and the third universal ball joint 14, the elastic washer 26 prevents dust and impurities from entering the first shaft seat 12 and the second shaft 16, the flat washer 27 ensures good sealing effect between the upper surface of the retaining ring 19 and the lower surface of the bearing 20, and effectively prevents dust and impurities from entering, ensures that the transmission mechanism normally rotates, is not easy to damage, and prolongs the service life.

To sum up, this a drive mechanism for automobile windscreen wiper arm makes this drive mechanism transmission process more smooth and easy through first universal ball joint 6, second universal ball joint 9 and third universal ball joint 14, and effectively avoids dust impurity to get into, ensures this drive mechanism normal rotation, and is not fragile increase of service life.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A drive mechanism for an automotive wiper arm, comprising a mounting frame (1), characterized in that: the lower surface of the mounting frame (1) is provided with a reduction gearbox (2), an input shaft of the reduction gearbox (2) is fixedly connected with an output shaft of a driving motor (3), the upper surface of the output shaft of the reduction gearbox (2) is provided with a first connecting plate (5) through a locking nut (4), the first connecting plate (5) is provided with two first universal ball joints (6), the first universal ball joints (6) are sequentially provided with a long connecting rod (7) and a short connecting rod (8) from top to bottom, the end of the long connecting rod (7) far away from the driving motor (3) is provided with a second connecting plate (10) through a second universal ball joint (9), the second connecting plate (10) is provided with a first shaft seat (12) through a first rotating shaft (11), the first shaft seat (12) is fixedly connected with the left side surface of the mounting frame (1) through a short pipe (13), third connecting plate (15) are installed through third universal ball joint (14) on the end that driving motor (3) were kept away from in short connecting rod (8), install second shaft seat (17) through second pivot (16) on third connecting plate (15), second shaft seat (17) are through long tube (18) and mounting bracket (1) right flank fixed connection, all install bearing (20) through buckle (19) in first pivot (11) and second pivot (16) lower surface, the lower surface mounting of bearing (20) has connector (21), first pivot (11) that bearing (20) are corresponding all are provided with pivot sealing washer (22) with second pivot (16) surface.

2. A drive mechanism for an automotive wiper arm according to claim 1, characterized in that: the reduction gearbox (2) is fixedly arranged on the lower surface of the mounting frame (1) through a locking bolt (23).

3. A drive mechanism for an automotive wiper arm according to claim 1, characterized in that: and first dustproof sealing rings (24) are arranged between the first universal ball joint (6) and the first connecting plate (5) and between the upper and lower first universal ball joints (6).

4. A drive mechanism for an automotive wiper arm according to claim 1, characterized in that: and second dustproof sealing rings (25) are arranged between the upper surface of the second connecting plate (10) and the lower surface of the second universal ball joint (9) and between the upper surface of the third connecting plate (15) and the lower surface of the third universal ball joint (14).

5. A drive mechanism for an automotive wiper arm according to claim 1, characterized in that: elastic washers (26) are arranged between the lower surface of the second connecting plate (10) and the upper surface of the first shaft seat (12) and between the lower surface of the third connecting plate (15) and the upper surface of the second shaft seat (17).

6. A drive mechanism for an automotive wiper arm according to claim 1, characterized in that: and a flat gasket (27) is arranged between the upper surface of the retaining ring (19) and the lower surface of the bearing (20).