阅读说明：本技术 雨刮装置、驾驶室和作业车辆 (Wiper device, cab, and work vehicle ) 是由 张珂 吴彩庭 徐建辉 于 2020-05-28 设计创作，主要内容包括：本发明提供了一种雨刮装置、驾驶室和作业车辆。雨刮装置包括：刮刷；刮臂,一端与刮刷连接；输出轴组件,一端与刮臂远离刮刷的一端连接；联轴器组件；驱动机构,与联轴器组件连接；伸缩杆,设于输出轴组件或联轴器组件上,用于实现联轴器组件与输出轴组件的连接,伸缩杆可沿输出轴组件与联轴器组件的连接方向伸缩。本发明通过伸缩杆连接联轴器组件和输出轴组件,能够保证使输出轴组件与联轴器组件的连接,不仅能够提高驱动机构和输出轴组件连接的可靠,且传递力矩迅速,并有效提高了雨刮装置使用的多功能性和使用稳定性。(The invention provides a wiper device, a cab and a working vehicle. The wiper device includes: scraping and brushing; one end of the scraping arm is connected with the scraping brush; one end of the output shaft assembly is connected with one end of the scraping arm far away from the scraping brush; a coupling assembly; the driving mechanism is connected with the coupling assembly; the telescopic rod is arranged on the output shaft assembly or the coupling assembly and used for realizing the connection of the coupling assembly and the output shaft assembly, and the telescopic rod can stretch along the connection direction of the output shaft assembly and the coupling assembly. The invention connects the coupling component and the output shaft component through the telescopic rod, can ensure the connection of the output shaft component and the coupling component, can improve the reliability of the connection of the driving mechanism and the output shaft component, can quickly transmit torque, and effectively improves the versatility and the use stability of the wiper device.)

1. A wiper device, comprising:

scraping and brushing;

one end of the scraping arm is connected with the scraping brush;

one end of the output shaft assembly is connected with one end of the scraping arm far away from the scraping brush;

a coupling assembly;

the driving mechanism is connected with the coupling assembly;

the telescopic link is located the output shaft subassembly or on the shaft coupling subassembly, be used for realizing the shaft coupling subassembly with the connection of output shaft subassembly, the telescopic link can be followed the output shaft subassembly with the connection direction of shaft coupling subassembly is flexible.

2. The windscreen wiper device as set forth in claim 1 wherein said telescoping rod includes:

a rod body;

the first elastic piece is arranged in the coupling assembly, one end of the first elastic piece is connected with the coupling assembly, the other end of the first elastic piece is connected with the rod body, and the first elastic piece is used for driving one end, close to the output shaft assembly, of the rod body to extend out of the coupling assembly;

and the output shaft assembly is provided with a jack which is used for being matched with one end of the rod body extending out of the coupling assembly.

3. The windscreen wiper device as set forth in claim 2 wherein said output shaft assembly includes:

positioning a plate;

the positioning plate and the positioning plate are arranged at intervals;

the main connecting shaft penetrates through the positioning plate and the positioning disc;

the main connecting shaft extends out of one end of the positioning plate and is connected with the scraping arm, one end of the main connecting shaft extending out of the positioning plate extends into the coupler assembly, and the insertion hole is formed in the positioning plate.

4. The windscreen wiper device as set forth in claim 3,

the coupler assembly is provided with a plurality of connecting holes, and telescopic rods are arranged in the connecting holes;

the output shaft assembly is provided with a plurality of jacks;

the telescopic rod and the jacks are in one-to-one correspondence, the connecting holes are formed in the coupler assembly in an annular and uniform mode, the jacks are formed in the positioning disc in an annular and uniform mode, and the connecting holes are parallel to the length direction.

5. The windscreen wiper device as set forth in claim 3,

the jack is a long-strip-shaped waist-shaped hole, and the length direction of the waist-shaped hole is arranged along the radial direction of the positioning disc.

6. The windscreen wiper device as set forth in any one of claims 3 through 5 wherein said coupling assembly includes:

the first shaft coupling part is provided with a sliding groove along the radial direction;

the second coupling shaft part is arranged in the sliding groove;

the first shaft hole is formed in one end, close to the output shaft assembly, of the first coupling part;

the second shaft hole is arranged on the second coupling shaft part;

the first shaft hole is used for being matched with one end, extending out of the positioning plate, of the main connecting shaft, the second shaft hole is connected with the driving mechanism, and the telescopic rod is arranged on the first shaft connecting portion.

7. The windscreen wiper device as set forth in claim 6 wherein said second shaft portion is provided with a radial adjustment mechanism including:

the second elastic piece is arranged at one end of the second coupling part;

the first gland is fixedly connected with the first coupling part;

the third elastic piece is arranged at the other end of the second coupling shaft part;

the second gland is fixedly connected with the first coupling part;

two ends of the second elastic piece respectively abut against the second coupling shaft part and the first gland, and two ends of the third elastic piece respectively abut against the second coupling shaft part and the second gland.

8. The windscreen wiper device as set forth in claim 6 further comprising:

the auxiliary connecting shaft is arranged on the positioning plate, extends out of the positioning plate and is connected with the scraping arm;

the scraping arm comprises a first arm and a second arm, one end, extending out of the positioning plate, of the main connecting shaft is connected with the first arm, and one end, extending out of the positioning plate, of the auxiliary connecting shaft is connected with the second arm.

9. A cab, comprising:

a vehicle window;

the windscreen wiper device as set forth in any one of claims 1 through 8;

the automobile window wiper comprises a wiping brush, a wiping arm and an output shaft assembly, wherein the wiping brush, the wiping arm and the output shaft assembly are arranged on an automobile window, and a driving mechanism and a coupling assembly are arranged in a cab.

10. A work vehicle, characterized by comprising:

a vehicle body;

the cab of claim 9, the body being coupled to the cab; or

The windscreen wiper device as set forth in any one of claims 1 through 8.

Technical Field

The invention relates to the technical field of engineering machinery, in particular to a wiper device, a cab and an operating vehicle.

Background

At present, the windscreen wiper of an automobile or a working vehicle is in a conventional form of a windscreen wiper with an external windscreen wiper and a wiping arm, a driving motor is arranged in the windscreen wiper, the driving motor is connected with an output shaft of the wiping arm into a whole, and the driving motor cannot be disconnected with the output shaft of the wiping arm rapidly.

Disclosure of Invention

The present invention is directed to solving at least one of the above problems.

One object of the present invention is to provide a wiper device.

The second purpose of the invention is to provide a cab.

It is a third object of the present invention to provide a work vehicle.

To achieve the first object of the present invention, an embodiment of the present invention provides a wiper device including: scraping and brushing; one end of the scraping arm is connected with the scraping brush; one end of the output shaft assembly is connected with one end of the scraping arm far away from the scraping brush, and the driving mechanism is connected with the coupling assembly; the telescopic rod is arranged on the output shaft assembly or the coupling assembly and used for realizing the connection of the coupling assembly and the output shaft assembly, and the telescopic rod can stretch along the connection direction of the output shaft assembly and the coupling assembly.

In this technical scheme, through set up the shaft coupling subassembly between actuating mechanism and output shaft subassembly, the shaft coupling subassembly passes through the telescopic link and is connected with the output shaft subassembly to drive the output shaft subassembly and rotate, thereby the output shaft subassembly rotates the drive and scrapes the arm and rotate, makes to scrape the arm drive and scrape the brush and realize scraping the brush function. Specifically, when the wiper device is used for a vehicle window, after the vehicle window is opened, the output shaft assembly and the coupler assembly are separated from each other, when the vehicle window is to be closed, the output shaft assembly and the coupler assembly need to be connected again in order to tightly close the vehicle window, and at the moment, the output shaft assembly and the coupler assembly may be dislocated in the connection direction, the connection direction refers in particular to the combination direction when the output shaft assembly and the coupler assembly can be accurately connected, and the connection direction can be the axial direction of the coupler assembly, or the direction deviating from the axial direction, and the like. Under the condition that the output shaft assembly and the coupling assembly are dislocated, the output shaft assembly and the coupling assembly are difficult to connect. Locate the telescopic link between output shaft subassembly and the shaft coupling subassembly, take place relative pivoted in-process when the telescopic link with output shaft subassembly or shaft coupling subassembly, because the telescopic link can stretch out and draw back and have the alignment function on the direction of connection to the combination of output shaft subassembly and shaft coupling subassembly has been guaranteed.

When the telescopic rod is disconnected with the output shaft assembly, the coupler assembly and the driving mechanism are separated from the output shaft assembly, so that the weight attached to the window glass can be reduced. The coupling assembly can be selectively connected or disconnected with the output shaft of the output shaft assembly, so that the driving mechanism and the output shaft assembly can be reliably connected, the torque can be transmitted reliably and rapidly, the use versatility of the wiper device is effectively improved, and the use stability of the wiper device is improved.

In addition, the technical scheme provided by the invention can also have the following additional technical characteristics:

among the above-mentioned technical scheme, the telescopic link includes: a rod body; the first elastic piece is arranged in the coupler assembly, one end of the first elastic piece is connected with the coupler assembly, the other end of the first elastic piece is connected with the rod body, and the first elastic piece is used for driving one end, close to the output shaft assembly, of the rod body to extend out of the coupler assembly; wherein, be equipped with the jack on the output shaft subassembly for with the body of rod stretch out the one end cooperation of shaft coupling subassembly.

In this technical scheme, the telescopic link is located on the shaft coupling subassembly, makes the body of rod stretch out the tip that the shaft coupling subassembly is close to the one end of output shaft subassembly for stretch into in the jack, with connect the output shaft subassembly, or the body of rod breaks away from with the jack, the body of rod and the disconnection of output shaft subassembly. Specifically, when output shaft subassembly and shaft coupling subassembly were expected to be connected, the one end that the shaft coupling subassembly was kept away from to the body of rod touched each other with the output shaft subassembly, and the telescopic link is owing to have elasticity and in the short-term withdrawal, not only can guarantee that the door window closes tightly, and when the shaft coupling subassembly reached the position of jack at the drive telescopic link pivoted in-process, can make the body of rod and jack cooperation insert and make output shaft subassembly and shaft coupling subassembly be connected. Therefore, the mutual matching of the telescopic rod and the jack can ensure that the output shaft assembly can be combined with the coupling assembly again after being disconnected. At least a part of this internal connecting hole that is equipped with one or more than two of shaft coupling subassembly, for example, can be equipped with first connecting hole and second connecting hole radially symmetrically, and the equal axial setting of first connecting hole and second connecting hole, that is, the central line of first connecting hole, the axle center of second connecting hole central line and the body of shaft coupling subassembly are parallel to each other. For example, the first elastic member may be a spring, the first elastic member is disposed in the first connecting hole, one end of the first elastic member is connected to the end cap, and the end cap is used for connecting with at least a part of the body of the coupler assembly, for example, the end cap may be connected to a fastener such as a screw, so that the telescopic rod may be prevented from being disengaged from the first connecting hole. The other end of the first elastic piece is connected with the rod body. Specifically, the rod body comprises a large-diameter part and a small-diameter part which are different in diameter, a hole is formed in the large-diameter part, and the first elastic piece extends into the hole and is connected with the large-diameter part. The small diameter portion may extend into the receptacle and may be used to connect the output shaft assembly. The step is formed between the large-diameter part and the small-diameter part, the output shaft assembly can be limited, and the noise generated by mutual collision of the output shaft assembly and the body of the coupler assembly is avoided. When the jack can not be aimed at to the telescopic link and insert, because the telescopic link has the flexible function of axial, consequently can make the tip retraction shaft coupling subassembly of telescopic link this internal, and in case the telescopic link rotates to the position of aiming at with the jack, then the telescopic link pops out the back and is connected with the output shaft subassembly. Therefore, the telescopic rod ensures the connection between the coupler assembly and the output shaft assembly. When the connection between the coupler assembly and the output shaft assembly needs to be disconnected, only the output shaft assembly is separated, and the jack is separated from the rod body of the telescopic rod.

In any one of the above technical solutions, the output shaft assembly includes: positioning a plate; the positioning plate is coaxial with the positioning plate and is arranged at intervals; the main connecting shaft penetrates through the positioning plate and the positioning disc; wherein, the one end that the main connecting axle stretches out the locating plate with scrape being connected of arm, the one end that the main connecting axle stretches out the positioning disk stretches into in the shaft coupling subassembly, the jack is located on the positioning disk.

In the technical scheme, a first positioning hole is formed in the positioning plate and used for enabling the main connecting shaft to penetrate through and then extend out of the positioning plate. The thickness of the positioning plate is not easy to be too thick, the plate surfaces of the two sides of the positioning plate are respectively provided with the shaft sleeves, the two shaft sleeves are coaxially arranged with the first positioning hole, the main connecting shaft is supported and further limited, the axial position of the main connecting shaft is stable, radial movement cannot occur, the reliability of connection of the main connecting shaft and the scraping arm can be guaranteed, and noise can be further avoided. The jack is arranged on the positioning plate, the positioning plate and the positioning plate are arranged at intervals, so that the noise is generated by the fact that the rod body is inserted into the jack and then can be prevented from colliding with the positioning plate, and the possibility of abrasion caused by collision is avoided. The end of the main connecting shaft extending out of the positioning disc extends into the coupler assembly, so that the guiding effect of the output shaft assembly and the coupler assembly when being connected through the telescopic rod is achieved, and the connection of the telescopic rod and the positioning disc is facilitated. In addition, the quotation of positioning disk towards the shaft coupling subassembly can play the effect of finding the location to the telescopic link better to can further guarantee that the telescopic link is connected with the positioning disk more fast.

In any of the above technical solutions, the coupling assembly is provided with a plurality of connecting holes, and the plurality of connecting holes are internally provided with telescopic rods; the output shaft assembly is provided with a plurality of jacks; wherein, telescopic link and jack one-to-one, a plurality of connecting holes evenly set up along shaft coupling subassembly hoop, and a plurality of jacks evenly set up along the positioning disk hoop, and the length direction and the direction of connection of connecting hole are parallel.

In this technical scheme, the telescopic link sets up to a plurality ofly, for example can set up to two, can the atress even, and reliability and stationarity when can guaranteeing that telescopic link and positioning disk are connected can further the noise abatement's production.

In any of the above technical solutions, the insertion hole is a long strip-shaped waist-shaped hole, and the length direction of the waist-shaped hole is arranged along the radial direction of the positioning disk.

In this technical scheme, the jack is waist type hole, and the upper and lower direction clearance is little, can avoid the positioning disk to make a round trip to rotate the in-process and the body of rod collision each other and send the abnormal sound, still can effectively adjust the left and right deviation of motor drive shaft and main connecting axle in addition.

In any of the above technical solutions, the coupling assembly includes: the first shaft coupling part is provided with a sliding groove along the radial direction; the second coupling shaft part is arranged in the sliding groove; the first shaft hole is formed in one end, close to the output shaft assembly, of the first coupling part; the second shaft hole is arranged on the second shaft coupling part; the first shaft hole is used for being matched with one end, extending out of the positioning disc, of the main connecting shaft, the second shaft hole is connected with the driving mechanism, and the telescopic rod is arranged on the first shaft connecting portion.

In the technical scheme, the first coupling part is of a cylindrical structure, and the sliding grooves are radially arranged and penetrate through the outer circumferential surface of the first coupling part and the end surface close to the driving structure. The second shaft coupling part is of a block-shaped structure, is arranged in the sliding groove and can slide in the radial direction. The axial slotted hole of the sliding groove comprises a large-diameter slotted hole and a small-diameter slotted hole, and correspondingly, the second shaft coupling part has a convex cross section so as not to axially fall off when being inserted into the sliding groove. One end of the second coupling part, which is close to the outer circumferential surface of the first coupling part, can be respectively connected with the first coupling part through a gland, so that the second coupling part cannot fall off in the radial direction. The first shaft hole is used for the main connecting shaft to stretch into, and the second shaft hole is used for connecting a motor driving shaft.

Among any one of the above-mentioned technical scheme, the second coupling portion is equipped with radial adjustment mechanism, and radial adjustment mechanism includes: the second elastic piece is arranged at one end of the second coupling shaft part; the first gland is fixedly connected with the first coupling part; the third elastic piece is arranged at the other end of the second coupling shaft part; the second gland is fixedly connected with the first coupling part; the two ends of the second elastic piece are respectively abutted against the second coupling shaft part and the first gland, and the two ends of the third elastic piece are respectively abutted against the second coupling shaft part and the second gland.

In this technical scheme, the second axle part is equipped with radial blind hole respectively in relative both sides, and second elastic component and third elastic component stretch into in the blind hole respectively, the one end and one of them blind hole butt of second elastic component, the other end and the first gland of second elastic component are connected, the one end and another blind hole butt of third elastic component, the other end and the second gland butt of third elastic component. The second elastic piece and the third elastic piece are respectively arranged at the upper end and the lower end of the radial direction, and the second elastic piece and the third elastic piece can be springs and the like, so that the radial play of the radial shaft coupling assembly can be automatically adjusted.

In any one of the above technical solutions, the wiper device further includes: the auxiliary connecting shaft is arranged on the positioning plate, extends out of the positioning plate and is connected with the scraping arm; the scraping arm comprises a first arm and a second arm, one end of the main connecting shaft extending out of the positioning plate is connected with the first arm, and one end of the auxiliary connecting shaft extending out of the positioning plate is connected with the second arm.

In the technical scheme, the positioning plate is further provided with a second positioning hole, and the second positioning hole is also provided with a shaft sleeve coaxially for the auxiliary connecting shaft to penetrate through for the same reason. The wiper device with two arms can be connected through the main connecting shaft and the auxiliary connecting shaft, and the applicability is improved.

To achieve the second object of the present invention, an embodiment of the present invention provides a cab including: a window and a wiper device of any of the embodiments; wherein, scrape the brush, scrape arm and output shaft subassembly and locate on the door window, actuating mechanism and shaft coupling subassembly are located in the driver's cabin.

In this technical solution, since the cab of the invention includes the wiper device in any one of the embodiments, the cab of the invention has all the advantages of the wiper device in any one of the embodiments.

To achieve the third object of the present invention, an embodiment of the present invention provides a work vehicle including: a vehicle body; the cab is connected with the vehicle body; or the wiper device of any of the embodiments.

In the technical scheme, the window is arranged on the cab, and the window is opened or closed relative to the cab; the scraping brush, the scraping arm and the output shaft assembly are arranged on a vehicle window, the driving mechanism and the coupling assembly are arranged on a vehicle body in the vehicle window, and the output shaft assembly, the scraping arm and the scraping brush are respectively arranged on two sides of the vehicle window (or a local sheet metal structure) for shielding the wind; the driving mechanism, the coupling assembly and the like are arranged on the cab body structure, so that the weight of the car window can be reduced. In addition, since the working vehicle of the present invention includes the wiper device of any one of the embodiments, the working vehicle of the present invention also has all the advantageous effects of the wiper device of any one of the embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is one of schematic views of a wiper structure according to the related art of the present invention;

fig. 2 is a second schematic view of a wiper structure according to the related art of the present invention;

FIG. 3 is one of the schematic views of a window opening assembly according to the related art of the present invention;

FIG. 4 is a second schematic view of a window assembly with a rear opening according to the related art;

fig. 5 is one of schematic views of a wiper motor for an automobile according to a related art of the present invention;

FIG. 6 is a second schematic view of a wiper motor of an automobile according to the related art of the present invention;

fig. 7 is one of schematic views of a wiper device and a camera according to the related art of the present invention;

fig. 8 is a second schematic view of a wiper device and a camera according to the related art of the present invention;

fig. 9 is one of schematic perspective views of a wiper device according to some embodiments of the present invention;

fig. 10 is a second schematic perspective view of a wiper device according to some embodiments of the present invention;

fig. 11 is an exploded view of a wiper device according to some embodiments of the present invention;

fig. 12 is an exploded schematic view of a coupling assembly of a wiper device in accordance with some embodiments of the present invention;

fig. 13 is an exploded view of a coupling assembly of the wiper device in accordance with some embodiments of the present invention;

fig. 14 is an exploded view of an output shaft assembly of the wiper device in accordance with some embodiments of the present invention;

fig. 15 is a front view in elevation of a first shaft portion of the wiper device in accordance with some embodiments of the present invention;

FIG. 16 is a schematic sectional view taken along line A-A in FIG. 15;

FIG. 17 is a schematic sectional view taken along line B-B in FIG. 15;

fig. 18 is a front elevational view of a second shaft portion of the wiper device in accordance with some embodiments of the present invention;

FIG. 19 is a schematic cross-sectional view taken along line C-C in FIG. 18;

FIG. 20 is a schematic cross-sectional view taken along line D-D in FIG. 18;

FIG. 21 is a perspective view of a work vehicle according to one embodiment of the present disclosure;

FIG. 22 is a second schematic perspective view of a work vehicle according to an embodiment of the present invention;

FIG. 23 is a third schematic perspective view of a work vehicle in accordance with an embodiment of the present invention;

fig. 24 is a fourth perspective view of the working vehicle according to the embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:

100': wiper structure, 200': open rear window assembly, 300': automobile wiper motor, 400': wiper device and camera.

Wherein, the correspondence between the reference numbers and the part names in fig. 9 to 24 is:

1: wiper device, 10: scraping brush, 20: wiper arm, 201: first arm, 202: second arm, 30: output shaft assembly, 301: locating plate, 3011: first positioning hole, 3012: second positioning hole, 302: positioning plate, 3021: jack, 303: main connecting shaft, 304: sub connection shaft, 305: shaft sleeve, 40: coupling assembly, 401: first coupling portion, 4011: first shaft hole, 4012: first connection hole, 4013: second connection hole, 402: second coupling shaft portion, 4021: second shaft hole, 4022: blind hole, 4023: chute, 403: a rod body, 404: first elastic member, 405: end cap, 406: second elastic member, 407: first gland, 408: third elastic member, 409: second gland, 410: telescopic rod, 420: radial adjustment mechanism, 50: drive mechanism, 501: motor body, 502: motor drive shaft, 21: cab, 211: a vehicle window.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the related art, at present, the wiper blade of an automobile or an engineering vehicle mainly has the following composition forms: the conventional external wiper of the link mechanism, namely the link mechanism (external) is connected with the output shaft into a whole, the power range of the motor is wide, the wiper can be selected according to the lengths of the glass and the wiper arm, but the external wiper has larger appearance volume and heavy weight; (2) the conventional link mechanism is internally provided with the wiper, namely the link mechanism (which is internally arranged in a motor structure) is connected with an output shaft into a whole, the power of the motor is usually smaller, and the wiper is suitable for the conditions that the size of a wiper arm is smaller and the installation space is small, or the motor is fixed on glass (the weight of the motor needs to be controlled as small as possible and part of wiring harness is exposed); (3) the connecting rod mechanism and the output shaft can be separated and combined, the glass scraping device is suitable for the conditions that glass needs to be opened, the scraping arms are long in scraping brush, the motor is heavy, and a wire harness is hidden in a vehicle, and the motor connecting rod can be arranged internally or externally.

Specifically, as shown in fig. 1 and 2, a wiper structure 100' for a crane, especially a mobile or crawler crane, is disclosed, which includes a wiper motor, a link mechanism, an output shaft, a connecting plate (located on a car body) with an arc hole, a wiper arm, a spring, and a pin (located on a glass), wherein the motor output shaft drives the connecting plate to rotate by a certain angle, and the wiper arm pin is combined with or separated from the connecting plate. The wiper structure 100' adopts a spring pin shaft to be inserted into or separated from a connecting plate with an arc hole, when the pin shaft is inserted into the connecting plate, the pin shaft and the connecting plate are impacted when the left and the right are reversed, the noise is large, and the abrasion is easy.

As shown in fig. 3 and 4, an opening rear window assembly 200' for a trunk door of a motor vehicle is disclosed, which includes a wiper motor and an output shaft (on a vehicle body), a wiper arm wiper brush (on a glass), the motor output shaft being coupled to or separated from the wiper arm drive shaft. Opening the backlite assembly 200' merely illustrates how the motor output shaft and the wiper arm shaft may be coupled, decoupled, without specific structure, and without regard to misalignment.

As shown in fig. 5 and 6, discloses an automobile wiper motor 300', which comprises a motor and a reduction gearbox, wherein the reduction gearbox comprises a box body, a turbine and a worm, the worm is connected to an output shaft of the motor through a coupler, and two ends of the worm are fixed, so that the worm and the turbine are kept in a good meshing state, the abrasion is reduced, the noise is reduced, and the service life is prolonged. The wiper motor 300' connects the worm inside the motor and the motor shaft through the coupling, and both are in the engaged state, and have no separated working state.

As shown in fig. 7 and 8, a wiper device and a camera 400' are disclosed, which comprises a wiper mechanism, a motor, and a controller for controlling the rotation of the motor, wherein the left side and the right side of an upright post connected with an output shaft of the motor are respectively provided with a limit post, when the upright post is contacted with the limit post, the controller controls the motor to change the steering direction, components such as a transmission gear, a limit detection optical coupler, a light blocking sheet and the like are not needed, and the structure is simple; the output shaft of the motor is respectively connected with the upright post and the wiper shaft of the wiper mechanism through a shaft coupling. The wiper device and camera 400' connects the motor shaft and the output shaft, the output shaft and the pillar via the couplings, and are all in the engaged state, without being in the separated operating state.

The wiper device and the work vehicle according to some embodiments of the present invention will be described below with reference to fig. 9 to 24.