CN215204806U

CN215204806U - Crank connecting rod structure for automobile wiper arm

Info

Publication number: CN215204806U
Application number: CN202121739433.0U
Authority: CN
Inventors: 叶才明; 胡转运; 严剑
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 crank connecting rod structure that car windscreen wiper arm was used relates to auto-parts technical field. Including the pipe, the mounting bracket, including a motor, an end cap, a controller, and a cover plate, a left side shaft bracket, right side shaft bracket, the pivot, the avris crank, universal ball seat, connecting rod spare and middle crank, the mounting bracket passes through the bolt and installs on the pipe, the motor passes through the bolt and installs on the mounting bracket, left side shaft bracket and right side shaft bracket are riveted respectively in the both ends of pipe, the pivot is installed in left side shaft bracket and right side shaft bracket in proper order, the articulate one end of avris is connected with the pivot, and the other end is connected with connecting rod spare through universal ball seat, middle crank passes through the bolt and installs on the output shaft of motor, and be connected with the connecting rod spare that is located the pipe both ends through universal ball seat. This crank connecting rod structure that car windscreen wiper arm was used, come the appearance welding and change into with the fix with screw, raw and other materials crank adopts same thickness and width, and buffering plunger, bush and connecting rod spare are general current part, make things convenient for production management and practice thrift development cost.

Description

Crank connecting rod structure for automobile wiper arm

Technical Field

The utility model relates to the technical field of auto-parts, specifically be a crank link structure that car windscreen wiper arm was used.

Background

Along with the increasing requirements of people on living quality, the automobile is no longer a simple transportation tool, the requirements of people on automobile use experience are higher and higher, the windscreen wiper is necessary equipment for ensuring normal running of the automobile in rainy and snowy weather, the windscreen wiper is generally arranged on a front windshield of the automobile, a spring is arranged between a wiper arm and a rocker in the windscreen wiper, and a spring support used for fixing the spring is arranged, one end of the spring is clamped on a positioning pin of the spring support through a hook, and the other end of the spring is clamped with the wiper arm.

In the windscreen wiper with the structure, the hook and the positioning pin are connected in a line contact mode, the line contact area is small, the positioning pin cannot apply enough limiting force to the hook, when the windscreen wiper works, the hook can move relative to the positioning pin along the length direction of the positioning pin, and generates abnormal sound by relative friction with the outer wall surface of the positioning pin, and even the spring is broken due to nonuniform deformation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a crank link structure that car windscreen wiper arm was used possesses the assembly strength and the fatigue resistance that have ensured the windscreen wiper arm, makes things convenient for production management and practices thrift development cost's advantage to solve the problem that exists among the above-mentioned background art.

For the assembly strength and the fatigue resistance that have realized having ensured the wiper arm, make things convenient for production management and practice thrift development cost's purpose, the utility model provides a following technical scheme: the utility model provides a crank connecting rod structure that car windscreen wiper arm was used, includes pipe, mounting bracket, motor, left bracket, right bracket, pivot, avris crank, universal ball seat, connecting rod spare and middle crank, the mounting bracket passes through the bolt and installs on the pipe, the motor passes through the bolt and installs on the mounting bracket, left bracket and right bracket are riveted respectively at the both ends of pipe, the pivot is installed in left bracket and right bracket in proper order, avris articulate one end is connected with the pivot, and the other end is connected with the connecting rod spare through universal ball seat, middle crank passes through the bolt and installs on the output shaft of motor to be connected with the connecting rod spare that is located the pipe both ends through universal ball seat.

As an optimal technical scheme of the utility model, the pipe outer wall is hugged closely to the lower part of mounting bracket, install the wiper arm control panel on the motor.

As an optimal technical scheme of the utility model, buffering plunger is installed to the tip of left side support pedestal, the bush is installed to the tip of right side support pedestal.

As a preferred technical scheme of the utility model, be located the pivot both ends of left bracket pedestal and right bracket pedestal and install self-lubricating bearing respectively, and through self-lubricating bearing and left bracket pedestal and right bracket pedestal relative movable mounting.

As an optimal technical scheme of the utility model, be located the pivot tail end on the left bracket bearing frame and install first spring washer to between left bracket bearing frame and avris crank, bearing seal and spacing ring are installed in proper order to the pivot head end.

As an optimal technical scheme of the utility model, be located the pivot tail end on the right bearing bracket and install the buckle, the second spring washer is installed to the pivot head end to between right bearing bracket and avris crank.

Compared with the prior art, the utility model provides a crank link structure that car windscreen wiper arm was used possesses following beneficial effect:

1. this crank connecting rod structure that car windscreen wiper arm was used, come the appearance welding and change into with the fix with screw, raw and other materials crank adopts same thickness and width, and buffering plunger, bush and connecting rod spare are general current part, make things convenient for production management and practice thrift development cost.

2. This crank link structure that car windscreen wiper arm was used has ensured the tired rotation intensity of being connected between motor output shaft and middle crank to and the tired rotation intensity of the forced crimping seam department between pivot and avris crank, and after applying the torsion of 70N.M 10 times, the crank can not become flexible, and the connectivity is strong.

3. According to the crank connecting rod structure for the automobile wiper arm, the rotating shaft is assembled to have a certain bevel gear angle, the assembling strength of the rotating shaft and the wiper arm can be guaranteed, and the wiper arm can be guaranteed to stop at a correct zero position.

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 exploded view of the present invention.

In the figure: 1. a circular tube; 2. a mounting frame; 3. a motor; 4. a left supporting shaft bracket; 5. a right supporting shaft bracket; 6. a rotating shaft; 7. a side crank; 8. a universal ball seat; 9. a link member; 10. a middle crank; 11. a wiper arm control panel; 12. a buffer plunger; 13. a bushing; 14. a self-lubricating bearing; 15. a first spring washer; 16. shaft sealing; 17. a limiting ring; 18. a retaining ring; 19. a second spring 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 present invention discloses a crank link structure for a wiper arm of an automobile, including a circular tube 1, a mounting bracket 2, a motor 3, a left shaft bracket 4, a right shaft bracket 5, a rotation shaft 6, a side crank 7, a universal ball seat 8, a link 9 and a middle crank 10, wherein the mounting bracket 2 is mounted on the circular tube 1 by bolts, the motor 3 is mounted on the mounting bracket 2 by bolts, the left shaft bracket 4 and the right shaft bracket 5 are respectively riveted to both ends of the circular tube 1, the rotation shaft 6 is sequentially mounted in the left shaft bracket 4 and the right shaft bracket 5, the rotation shaft 6 is assembled to have a certain angle of taper teeth, thereby ensuring the assembling strength with the wiper arm and ensuring that the wiper arm stops at a correct zero position, one end of the crank side 7 is connected to the rotation shaft 6, and the other end is connected to the link 9 by the universal ball seat 8, the middle crank 10 is installed on the output shaft end of the motor 3 through a bolt and connected with the connecting rod pieces 9 positioned at two ends of the circular tube 1 through the universal ball seat 8, the fatigue rotation strength between the output shaft of the motor 3 and the middle crank 10 and the fatigue rotation strength at the forced compression joint between the rotating shaft 6 and the side crank 7 are guaranteed, after 10 times of 70N.M torsion is applied, the crank cannot loosen, the connection performance is high, the original sample is welded and fixed through a screw, the raw material crank adopts the same thickness and width, the buffering plunger 12, the lining 13 and the connecting rod pieces 9 are general existing parts, the production management is convenient, and the development cost is saved.

Specifically, the lower part of the mounting frame 2 is tightly attached to the outer wall of the circular tube 1, and a wiper arm control plate 11 is mounted on the motor 3.

In this embodiment, mounting bracket 2 is changed into with the fix with screw by traditional welding, makes things convenient for subsequent production management, after wiper arm control panel 11 received input instruction, thereby comes swing wiper arm through control motor 3.

Specifically, a buffer plunger 12 is installed at the end of the left shaft bracket 4, and a bush 13 is installed at the end of the right shaft bracket 5.

In this embodiment, the buffer plunger 12 and the bush 13 are general existing components, which facilitates production management and saves development cost.

Specifically, self-lubricating bearings 14 are respectively installed at two ends of the rotating shaft 6 in the left shaft supporting frame 4 and the right shaft supporting frame 5, and are movably installed with the left shaft supporting frame 4 and the right shaft supporting frame 5 relatively through the self-lubricating bearings 14.

In this embodiment, the self-lubricating bearing 14 can increase the lubrication degree of the rotating shaft 6, and reduce the abrasion of the rotating shaft 6 and the noise.

Specifically, a first spring washer 15 is installed at the tail end of the rotating shaft 6 on the left shaft bracket 4 and is arranged between the left shaft bracket 4 and the side crank 7, and a shaft seal 16 and a limit ring 17 are sequentially installed at the head end of the rotating shaft 6.

In this embodiment, the first spring washer 15 is beneficial to ensuring the fatigue rotation strength at the forced compression joint between the rotating shaft 6 and the crank, and the shaft seal 16 and the limit ring 17 limit and fix the head end of the rotating shaft 6.

Specifically, a retaining ring 18 is installed at the tail end of the rotating shaft 6 on the right shaft bracket 5, and a second spring washer 19 is installed at the head end of the rotating shaft 6 and is arranged between the right shaft bracket 5 and the side crank 7.

In this embodiment, the second spring washer 19 is beneficial to ensuring the fatigue rotation strength at the forced compression joint between the rotating shaft 6 and the crank, and the retaining ring 18 is used for limiting and fixing the head end of the rotating shaft 6.

The utility model discloses a theory of operation and use flow: when the device is used, the original sample is welded and fixed by screws, the raw material cranks are the same in thickness and width, the buffer plunger 12, the bush 13 and the connecting rod piece 9 are general existing components, the production management is convenient, the development cost is saved, the fatigue rotation strength of connection between the output shaft of the motor 3 and the middle crank 10 and the fatigue rotation strength of a forced compression joint between the rotating shaft 6 and the side crank 7 are guaranteed, after the torsion of 70N.M is applied for 10 times, the cranks cannot loosen, the connectivity is strong, the rotating shaft 6 is assembled to have a certain conical tooth angle, the assembly strength with the wiper arm can be guaranteed, and the wiper arm can be guaranteed to stop at a correct zero position.

In summary, the crank connecting rod structure for the automobile wiper arm is fixed by screws instead of welding, raw material cranks are of the same thickness and width, and the buffering plunger 12, the bush 13 and the connecting rod piece 9 are universal existing parts, so that the production management is facilitated and the development cost is saved; the fatigue rotation strength of the connection between the output shaft of the motor 3 and the middle crank 10 and the fatigue rotation strength of the forced compression joint between the rotating shaft 6 and the side crank 7 are ensured, and after 10 times of 70N.M torsion, the cranks cannot loosen and have strong connectivity; the rotating shaft 6 is assembled to have a certain bevel gear angle, so that the assembling strength of the wiper arm can be ensured, and the wiper arm can be ensured to stop at a correct zero position.

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. The utility model provides a crank connecting rod structure that car windscreen wiper arm was used, includes pipe (1), mounting bracket (2), motor (3), left trunnion carrier (4), right trunnion carrier (5), pivot (6), avris crank (7), universal ball seat (8), connecting rod spare (9) and middle crank (10), its characterized in that: mounting bracket (2) are installed on pipe (1) through the bolt, motor (3) are installed on mounting bracket (2) through the bolt, left side support pedestal (4) and right side support pedestal (5) are riveted respectively in the both ends of pipe (1), pivot (6) are installed in left side support pedestal (4) and right side support pedestal (5) in proper order, the one end of avris crank (7) is connected with pivot (6), and the other end is connected with connecting rod spare (9) through universal ball seat (8), middle crank (10) are installed on the output shaft of motor (3) through the bolt to be connected with connecting rod spare (9) that are located pipe (1) both ends through universal ball seat (8).

2. The crank link structure for a wiper arm of an automobile as set forth in claim 1, wherein: the lower part of the mounting rack (2) is tightly attached to the outer wall of the circular tube (1), and a wiper arm control panel (11) is installed on the motor (3).

3. The crank link structure for a wiper arm of an automobile as set forth in claim 1, wherein: the buffer plunger (12) is installed at the end of the left shaft supporting frame (4), and the bushing (13) is installed at the end of the right shaft supporting frame (5).

4. The crank link structure for a wiper arm of an automobile as set forth in claim 1, wherein: and self-lubricating bearings (14) are respectively arranged at two ends of the rotating shaft (6) positioned in the left shaft supporting frame (4) and the right shaft supporting frame (5), and are movably arranged relative to the left shaft supporting frame (4) and the right shaft supporting frame (5) through the self-lubricating bearings (14).

5. The crank link structure for a wiper arm of an automobile as set forth in claim 1, wherein: a first spring washer (15) is installed at the tail end of a rotating shaft (6) on the left shaft supporting frame (4) and is arranged between the left shaft supporting frame (4) and the side crank (7), and a shaft seal (16) and a limiting ring (17) are sequentially installed at the head end of the rotating shaft (6).

6. The crank link structure for a wiper arm of an automobile as set forth in claim 1, wherein: a retaining ring (18) is arranged at the tail end of the rotating shaft (6) positioned on the right shaft supporting frame (5), and a second spring washer (19) is arranged at the head end of the rotating shaft (6) and is arranged between the right shaft supporting frame (5) and the side crank (7).