Paddy field working vehicle and working device thereof

Abstract

The application belongs to the field of paddy field operation vehicle, and discloses a paddy field operation vehicle and an operation device thereof, which comprise a clutch mechanism, a lifting control mechanism and a driving mechanism. The clutch mechanism is in transmission connection with the working part mechanism and can start or stop the lifting movement of the working part mechanism. The lifting control mechanism is provided with a control valve and is used for controlling the lifting or lowering of the working part mechanism. The driving mechanism can be in transmission connection with the clutch mechanism to drive the clutch mechanism to act, and can also be in transmission connection with the lifting control mechanism to drive the control valve to act. The paddy field operation vehicle and the operation device thereof are simple and reasonable in structure, and the production cost is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of paddy field operation vehicle technology, specifically to a paddy field operation vehicle and its operation device. Background Technology

[0002] In modern agricultural operations, the application of paddy field operation vehicles has greatly improved planting efficiency and reduced labor costs. There are many types of existing paddy field operation vehicles, including planting machines, fertilizer applicators, and tillers. Taking a planting machine as an example, a paddy field operation vehicle consists of a chassis and a working mechanism. The chassis supports the working mechanism and other components, enabling the vehicle to move across paddy fields. The working mechanism is used for planting. The working mechanism's raising and lowering is achieved through the extension and retraction of hydraulic cylinders, which are controlled by a control valve. Furthermore, the movement and stopping of the working mechanism are controlled by a clutch mechanism, whose operation is achieved by a PTO cable and a return spring. Therefore, paddy field operation vehicles have many components, a complex structure, and high production costs. Summary of the Invention

[0003] In view of at least one of the above-mentioned defects or deficiencies in the prior art, the present invention provides a paddy field operation vehicle and its operating device, which has a simple and reasonable structure and effectively reduces production costs.

[0004] To achieve the above objectives, a first aspect of the present invention provides an operating device for a paddy field operation vehicle, the paddy field operation vehicle being equipped with a working part mechanism for paddy field operations and capable of lifting and lowering, the operating device comprising:

[0005] The clutch mechanism is connected to the working part mechanism and can start or stop the lifting movement of the working part mechanism;

[0006] The lifting control mechanism is equipped with a control valve and is used to control the raising or lowering of the working part; and

[0007] The drive mechanism is capable of being driven to the clutch mechanism to drive the clutch mechanism to operate, and is also capable of being driven to the lifting control mechanism to drive the control valve to operate.

[0008] Furthermore, the drive mechanism may include a drive motor, a first transmission part, and a second transmission part, wherein the drive motor is used to drive the first transmission part and the second transmission part to rotate; wherein,

[0009] The first transmission unit can be connected to the clutch mechanism in the first rotational direction of the drive motor to drive the clutch mechanism to operate; or

[0010] The second transmission unit can be connected to the lifting control mechanism in the second rotation direction of the drive motor to drive the control valve to operate.

[0011] Furthermore, the drive mechanism may include:

[0012] The intermediate transmission component is connected to the drive motor, and the first transmission part and the second transmission part are both integrally set on the intermediate transmission component.

[0013] In addition, the intermediate transmission component can be a gear plate. The outer periphery of the end face of the intermediate transmission component is provided with a first transmission part and a second transmission part. The center of the intermediate transmission component is hinged to the main frame of the paddy field operation vehicle. A drive gear set is driven and connected on the motor shaft of the drive motor. The drive gear set meshes with the intermediate transmission component and can drive the intermediate transmission component to rotate forward or in reverse.

[0014] In addition, the intermediate transmission component can be a sector gear;

[0015] And / or, the gear plate end face of the intermediate transmission component may have a transmission protrusion extending axially. The transmission protrusion is L-shaped and includes a longitudinal section and a transverse section connected to each other. The transverse section is connected parallel to the gear plate end face and can act as a first transmission part to press against the clutch mechanism. The longitudinal section is connected perpendicularly to the gear plate end face and can act as a second transmission part to press against the lifting control mechanism.

[0016] Optionally, a gear shaft may be fixedly extended from the hinge of the intermediate transmission component. The gear shaft is equipped with a rotating plate that rotates synchronously. The working device also includes an angle sensor connected to the rotating plate to detect the rotation angle of the intermediate transmission component.

[0017] In some embodiments, the drive gear set may include a drive pinion meshing with an intermediate transmission member, and the drive mechanism may also include a gear fixing plate connected to the main frame. The gear fixing plate is provided with a gear receiving groove, which is located in the middle of the gear fixing plate and is used to receive the drive pinion.

[0018] Optionally, the clutch mechanism may include a PTO drive shaft, a PTO control cable, and a cable control arm connected in sequence. The PTO drive shaft is used to start or stop the lifting movement of the working part mechanism. The cable control arm is a hinge part for hinged with the main frame. One end of the cable control arm is connected to the PTO control cable, and the other end of the cable control arm can press against the first transmission part.

[0019] And / or, the lifting control mechanism may include a four-bar linkage, which includes an active rocker arm, a connecting rod, and a passive rocker arm. One end of the active rocker arm is a hinge for hinged to the main frame, and the other end of the active rocker arm is hinged to one end of the connecting rod. The active rocker arm can press against the second transmission part. The middle part of the passive rocker arm is a hinge for hinged to the main frame, and one end of the passive rocker arm is hinged to the other end of the connecting rod. The other end of the passive rocker arm is drively connected to the control valve.

[0020] A second aspect of the present invention provides a paddy field operation vehicle, which includes the above-described operation device.

[0021] Optionally, the paddy field operation vehicle also includes a working unit and a chassis with a main frame. The working unit is located on the chassis, and the lifting control mechanism and drive mechanism are located on the outside of the main frame.

[0022] The paddy field operation vehicle and its operating device of the present invention include a clutch mechanism, a lifting control mechanism, and a drive mechanism. The clutch mechanism is driven by the working part mechanism and can start or stop the lifting movement of the working part mechanism. The lifting control mechanism is equipped with a control valve and is used to control the raising or lowering of the working part mechanism. The drive mechanism can be driven by the clutch mechanism to drive the clutch mechanism, and can also be driven by the lifting control mechanism to drive the control valve. That is, both the clutch mechanism and the lifting control mechanism can be driven by the drive mechanism, which greatly simplifies the overall structure and makes the overall structure more reasonable. In addition, the clutch mechanism and the lifting control mechanism share a single drive mechanism, which not only effectively simplifies the drive control logic, but also reduces the number of motors and sensors, greatly reducing manufacturing costs.

[0023] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 A structural perspective view of a working device according to a specific embodiment of the present invention is shown;

[0026] Figure 2 for Figure 1 A partially enlarged schematic diagram of the working device;

[0027] Figure 3 for Figure 1 A partially enlarged schematic diagram of the working device from another perspective;

[0028] Figure 4 for Figure 3 A structural schematic diagram of the working device from another perspective;

[0029] Figure 5 for Figure 1 A schematic diagram of the overall structure of the working device in the diagram; and

[0030] Figure 6 for Figure 1 A partial rear view of the working device in the middle;

[0031] Figure 7 for Figure 1 Exploded view of the partial installation of the working device in the diagram; and

[0032] Figure 8 for Figure 7 A schematic diagram of the intermediate transmission component.

[0033] Explanation of reference numerals in the attached figures:

[0034] 4. Main frame 1. Drive mechanism

[0035] 11 Drive motor 12 Intermediate transmission components

[0036] 121 First transmission unit 122 Second transmission unit

[0037] 123 Transmission protrusion 124 Gear shaft

[0038] 125 Turntable 13 Angle Sensor

[0039] 14 Drive pinion 15 Gear fixing plate

[0040] 151 Gear receiving slot 16 Reamed hole bolt

[0041] 2. Lifting control mechanism; 3. Clutch mechanism

[0042] 21 Control valve 22 Active rocker arm

[0043] 23 Linkage 24 Passive rocker arm

[0044] 31 PTO drive shaft 32 PTO control cable

[0045] 33 Cable-controlled swing arm; 34 Cable return spring Detailed Implementation

[0046] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0048] In the embodiments of the present invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of the components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0049] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0050] Existing paddy field operation vehicles suffer from problems such as complex structure, high production cost, and poor user experience. The inventors of this invention, through continuous reflection, discovered that most existing paddy field operation vehicles use a manual control structure, meaning that the raising / lowering of the working section and the on / off state of the PTO (Power Transfer Device) are controlled by a lever. Purely manual operation mechanisms are inconvenient to operate, require significant force, and are complex. A few paddy field operation vehicles are electrically controlled, where the raising / lowering of the working section is achieved by a motor driving a rocker arm to control the valve core, while the on / off state of the PTO is achieved using a separate electric control mechanism. This type of operation mechanism cannot control the on / off state of the PTO, and the structural correlation between the raising / lowering of the working section and the on / off state of the PTO cannot be confirmed. Control relies on electronic control logic, making the electronic control program even more complex.

[0051] In view of this, a first aspect of the present invention provides a novel working device for a paddy field operation vehicle, and a second aspect of the present invention provides a novel paddy field operation vehicle, which includes a working mechanism and the working device of the present invention. The working mechanism is used for paddy field operations and is capable of lifting and lowering, such as... Figure 1 As shown, the working device includes a clutch mechanism 3, a lifting control mechanism 2, and a drive mechanism 1. The clutch mechanism 3 is driven by the working part and can start or stop the lifting movement of the working part. The lifting control mechanism 2 is equipped with a control valve 21 and is used to control the raising or lowering of the working part. The drive mechanism 1 can be driven by the clutch mechanism 3 to drive the clutch mechanism 3, and can also be driven by the lifting control mechanism 2 to drive the control valve 21. That is, both the clutch mechanism 3 and the lifting control mechanism 2 can be driven by the drive mechanism 1, which greatly simplifies the overall structure and makes the overall structure more reasonable. In addition, the clutch mechanism 3 and the lifting control mechanism 2 share a single drive mechanism 1, which not only effectively simplifies the drive control logic, but also reduces the number of motors and sensors, greatly reducing manufacturing costs.

[0052] It should be noted that the structure of the drive mechanism 1 can vary. For example, the drive motor 11 of the drive mechanism 1 may have a first drive connector and a second drive connector directly rotatably connected to its motor shaft. The first drive connector is connected to the clutch mechanism 3, and the second drive connector is rotatably connected to the lifting control mechanism 2. In this way, the drive mechanism 1 can drive the clutch mechanism 3 to operate through the first drive connector and drive the control valve 21 to operate through the second drive connector. Alternatively, the drive mechanism 1 may be connected to the clutch mechanism 3 and the lifting control mechanism 2 respectively through a transmission gear set or a linkage mechanism, etc. The present invention is not limited to these.

[0053] Optionally, the paddy field operation vehicle may also include a chassis with a main frame 4, with the working mechanism located on the chassis, and the lifting control mechanism 2 and drive mechanism 1 both located on the outside of the main frame 4. Since the paddy field operation vehicle operates in a harsh environment in paddy fields, its components are easily covered in mud and water, requiring frequent inspection and maintenance. Therefore, in this application, the paddy field operation vehicle places both the lifting control mechanism 2 and drive mechanism 1 on the outside of the main frame 4. This allows for complete disassembly and assembly during inspection and maintenance, making inspection and maintenance more convenient.

[0054] Furthermore, due to the numerous components of the paddy field operation vehicle, its operation is relatively cumbersome, resulting in high labor intensity for operators. Optionally, the drive mechanism 1 of the present invention may include a drive motor 11, a first transmission part 121, and a second transmission part 122. The drive motor 11 drives the first transmission part 121 and the second transmission part 122 to rotate. The first transmission part 121 can be connected to the clutch mechanism 3 in a first rotational direction of the drive motor 11 to drive the clutch mechanism 3 to operate. The second transmission part 122 can be connected to the lifting control mechanism 2 in a second rotational direction of the drive motor 11 to drive the control valve 21 to operate. Thus, both the clutch mechanism 3 and the lifting control mechanism 2 are electrically controlled by the drive motor 11, greatly reducing the labor intensity for operators. Moreover, the clutch mechanism 3 and the lifting control mechanism 2 share a single drive mechanism 1, and the clutch mechanism 3 and the lifting control mechanism 2 are driven separately by the rotation of the drive motor 11 in two opposite directions. The operation of the two structures is independent and does not affect each other, allowing for a structurally defined logic that operation is only possible in the lowering state, greatly simplifying the control logic.

[0055] It should be noted that the first rotation direction of the drive motor 11 is one of the forward rotation direction and the reverse rotation direction of the drive motor 11, and the second rotation direction of the drive motor 11 is the other of the forward rotation direction and the reverse rotation direction of the drive motor 11.

[0056] The first transmission part 121 and the second transmission part 122 may be independent components and respectively connected to the motor shaft of the drive motor, or the first transmission part 121 and the second transmission part 122 may be integrally manufactured and formed on the same component, or the first transmission part 121 and the second transmission part 122 may be independent components and respectively connected to the same component, and this application is not limited thereto.

[0057] Furthermore, the drive mechanism 1 may include an intermediate transmission component 12 that is connected to the drive motor 11. The first transmission part 121 and the second transmission part 122 may be integrally disposed on the intermediate transmission component 12. In this way, the drive structure can be further simplified and the manufacturing and installation costs can be reduced.

[0058] Furthermore, such as Figures 2 to 4As shown, the intermediate transmission component 12 can be a gear plate. The first transmission part 121 and the second transmission part 122 are disposed on the outer periphery of the end face of the intermediate transmission component 12, and the center of the intermediate transmission component 12 is hinged to the main frame of the paddy field operation vehicle. A drive gear set is driven and connected to the motor shaft of the drive motor 11. The drive gear set meshes with the intermediate transmission component 12 and can drive the intermediate transmission component 12 to rotate forward or backward. In this way, the torque of the drive motor 11 can be amplified, thereby making the overall structure more reasonable and reliable, and reducing the cost. Furthermore, setting the intermediate transmission component 12 as a gear plate makes the overall structure of the operating device simpler and more compact, which is conducive to the miniaturization of the operating device and the reduction of manufacturing costs.

[0059] Furthermore, the intermediate transmission component 12 can be a sector gear. In this way, the radius of the intermediate transmission component 12 can be further increased within the same installation space, thereby further increasing the driving torque and making the structure more reasonable and reliable.

[0060] In addition, such as Figure 3 and Figure 4 As shown, the gear plate end face of the intermediate transmission member 12 has a transmission protrusion 123 extending axially. The transmission protrusion 123 is L-shaped and includes a longitudinal section and a transverse section connected to each other. The transverse section is connected parallel to the gear plate end face and can act as a first transmission part 121 to press against the clutch mechanism. The longitudinal section is connected perpendicularly to the gear plate end face and can act as a second transmission part 122 to press against the lifting control mechanism. Thus, in the first rotation direction of the drive motor 11, the first transmission part 121 can be connected to the clutch mechanism 3 to drive the clutch mechanism 3 to operate; in the second rotation direction of the drive motor 11, the second transmission part 122 can be connected to the lifting control mechanism 2 to drive the control valve 21 to operate.

[0061] Furthermore, a gear shaft 124 can be fixedly extended from the hinge portion of the intermediate transmission member 12. The gear shaft 124 is provided with a synchronously rotating rotating plate 125. The working device also includes an angle sensor 13, which is connected to the rotating plate 125 to detect the rotation angle of the intermediate transmission member 12. Specifically, as shown... Figure 6 As shown, the angle sensor 13 is arranged inside the main frame 4. The gear shaft 124 on the hinge of the intermediate transmission member 12 passes through the main frame 4 and extends into the inner side of the main frame 4. A rotating plate 125 is connected to the inner end of the gear shaft 124. The rotating plate 125 is connected to the angle sensor 13. The angle sensor 13 can detect the position of the rotating plate 125, thereby knowing the position of the intermediate transmission member 12. Furthermore, combined with the forward and reverse rotation of the drive motor 11, the control of the working mechanism's rising and falling, as well as the starting and stopping of the working mechanism, can be realized.

[0062] Furthermore, the drive gear set may include a drive pinion 14 that meshes with the intermediate transmission member 12. The drive mechanism also includes a gear fixing plate 15, which has a gear receiving groove 151 and a plurality of reamed holes. The gear receiving groove 151 is located in the middle of the gear fixing plate 15 and is used to receive the drive pinion 14. The plurality of reamed holes are circumferentially spaced on the outer periphery of the gear receiving groove 151, and the plurality of reamed holes are used to fix the main frame 4 of the paddy field operation vehicle through reamed hole bolts 16.

[0063] Specifically, the drive motor 11 drives the intermediate transmission component 12 via a drive gear set, which includes a worm, a large drive gear, and a small drive gear. The worm is coaxially connected to the drive motor 11, meshes with the large drive gear, and the large and small drive gears are coaxially arranged and fixedly connected. Thus, as... Figures 2 to 4 As shown, the motor shaft of the drive motor 11 and the mounting plate of the main frame 4 can be arranged in parallel, making the overall structure simpler and more compact. Furthermore, by setting a large drive gear and a small drive gear, with the radius of the large drive gear being larger than that of the small drive gear, and the radius of the intermediate transmission component 12 being larger than that of the small drive gear, the drive structure becomes more rational and reliable.

[0064] In addition, such as Figures 2 to 4 As shown, multiple reamed holes are arranged circumferentially at intervals on the outer periphery of the gear receiving groove 151. The gear fixing plate 15 is fixedly installed on the main frame 4 of the paddy field operation vehicle by the multiple reamed holes through the reamed hole bolts 16. The drive pinion 14 is set in the gear receiving groove 151 of the gear fixing plate 15, so that the drive pinion 14 can be limited. This can better ensure the meshing of the drive pinion 14 and the intermediate transmission component 12. The gear gap between the two is small, the idle stroke is small when switching between forward and reverse, and the control accuracy is higher.

[0065] The drive motor 11 drives the intermediate transmission component 12 through the drive gear set. In addition to the structure described above, the drive gear set can also be a structure that includes only multiple gears. In this case, the motor shaft of the drive motor 11 can be arranged perpendicularly to the mounting plate of the main frame 4. The present invention is not limited to this.

[0066] Optionally, the clutch mechanism 3 may include a PTO drive shaft 31, a PTO control cable 32, and a cable control arm 33 connected in sequence. The PTO drive shaft 31 is used to start or stop the lifting movement of the working part mechanism. The middle part of the cable control arm 33 is a hinge part for hinged with the main frame 4. One end of the cable control arm 33 is connected to the PTO control cable 32, and the other end of the cable control arm 33 can press against the first transmission part 121. Figure 5As shown, the hinged portion of the cable control arm 33 is hinged to the main frame 4. One end of the cable control arm 33 is connected to the PTO control cable 32, and the other end of the cable control arm 33 can press against the first transmission part 121. Thus, in the first rotation direction of the drive motor 11, the first transmission part 121 can be connected to the cable control arm 33 of the clutch mechanism to drive the clutch mechanism. Furthermore, the hinged portion of the intermediate transmission member 12 can be coaxially arranged with the hinged portion of the cable control arm 33, resulting in a simpler and more compact structure.

[0067] It should be noted that in some other embodiments, the clutch mechanism may reduce the PTO control arm 32 and connect the PTO control cable 32 directly to the intermediate transmission member 12. In this solution, the PTO control cable has a lot of extra stroke and a cable return spring or other mechanism needs to be provided.

[0068] Optionally, such as Figures 2 to 4 As shown, the lifting control mechanism 2 may include a four-bar linkage, which includes an active rocker arm 22, a connecting rod 23, and a passive rocker arm 24. One end of the active rocker arm 22 is a hinge for hinged to the main frame 4, and the other end of the active rocker arm 22 is hinged to one end of the connecting rod 23. The middle part of the active rocker arm 22 can press against the second transmission part 122. The middle part of the passive rocker arm 24 is a hinge for hinged to the main frame 4, and one end of the passive rocker arm 24 is hinged to the other end of the connecting rod 23. The other end of the passive rocker arm 24 is drive-connected to the control valve 21. Thus, in the second rotation direction of the drive motor 11, the second transmission part 122 can be drive-connected to the active rocker arm 22 of the lifting control mechanism to drive the control valve 21 to operate. The hinge of the intermediate transmission component 12 can be arranged coaxially with the hinge of the main rocker arm 22, or the hinge of the intermediate transmission component 12, the hinge of the cable control swing arm 33 and the hinge of the main rocker arm 22 can be arranged coaxially, so that the overall structure is more compact and reasonable.

[0069] The drive motor 11 is connected to a reduction gear set, meaning the gear plate is controlled by the reduction motor, and the drive motor 11 is driven by the electronic control system, enabling the intermediate transmission component 12 to rotate in both directions. The control valve 21 is controlled by a four-bar linkage, and the main rocker arm 22 of the four-bar linkage is driven by the rotation of the intermediate transmission component 12. Starting from the center position of the intermediate transmission component 12, when the intermediate transmission component 12 rotates counterclockwise, it can drive the main rocker arm 22 to operate, but does not drive the PTO control cable lever arm 33; when the intermediate transmission component 12 rotates clockwise, it can drive the PTO control cable lever arm 33, but does not drive the main rocker arm 22 in the four-bar linkage.

[0070] Specifically, such as Figure 3 and Figure 8As shown in the embodiment, when the intermediate transmission member 12 rotates clockwise, the left end face of the first transmission part 121 can abut against the lower end of the PTO control cable lever 33 and drive the PTO control cable lever 33 to rotate clockwise. When the PTO control cable lever 33 rotates clockwise, the upper end of the PTO control cable lever 33 can pull the PTO control cable 32 backward. When the intermediate transmission member 12 rotates counterclockwise, the top end face of the second transmission part 122 can abut against the middle of the active rocker arm 22 and drive the active rocker arm 22 to rotate counterclockwise. When the active rocker arm 22 rotates counterclockwise, it can drive the passive rocker arm 24 to rotate counterclockwise through the connecting rod 23 to press against the control valve 21. Wherein, as... Figure 5 As shown, one end of the PTO control cable 32 is connected to the cable control rotating arm 33, and the other end of the PTO control cable 32 is equipped with a cable return spring 34. Thus, when the intermediate transmission member 12 rotates counterclockwise, the PTO control cable 32 and the cable control rotating arm 33 can return to their original positions under the pulling force of the cable return spring 34. Similarly, the control valve 21 is also equipped with a return mechanism. When the intermediate transmission member 12 rotates clockwise, the passive rocker arm 24, the connecting rod 23, and the active rocker arm 22 can return to their original positions under the action of the return mechanism.

[0071] In summary, the clutch mechanism 3 and lifting control mechanism 2 of the paddy field operation vehicle and its working device of the present invention can both be driven by the drive mechanism 1, which greatly simplifies the overall structure and makes it more rational. Furthermore, the clutch mechanism 3 and the lifting control mechanism 2 share a single drive mechanism 1, which not only effectively simplifies the drive control logic but also reduces the number of motors and sensors required, significantly lowering manufacturing costs. In addition, by placing both the lifting control mechanism 2 and the drive mechanism 1 on the outside of the main frame 4, they can be disassembled and reassembled in one go during inspection and maintenance, making inspection and maintenance more convenient. Moreover, the drive mechanism 1 of the paddy field operation vehicle and its working device of the present invention has a simple, compact, reasonable, and reliable structure, low production costs, and a good user experience.

[0072] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0073] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0074] Furthermore, various different implementations of the present invention can be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed in the present invention.

Claims

1. A work device for a paddy field work vehicle provided with a work unit mechanism for paddy field work and capable of lifting movement, characterized by, The work device comprises: a clutch mechanism (3) in driving connection with the work mechanism and capable of starting or stopping the lifting movement of the work mechanism; a lifting control mechanism (2) provided with a control valve (21) and used for controlling the lifting or lowering of the work mechanism; and a driving mechanism (1) capable of being in driving connection with the clutch mechanism (3) to drive the clutch mechanism (3) to act and capable of being in driving connection with the lifting control mechanism (2) to drive the control valve (21) to act, the driving mechanism (1) comprising a driving motor (11), a first transmission part (121) and a second transmission part (122), the driving motor (11) being driven by an electric control system, the driving motor (11) being used for driving the first transmission part (121) and the second transmission part (122) to rotate; the first transmission part (121) being capable of being in driving connection with the clutch mechanism in a first rotating direction of the driving motor (11) to drive the clutch mechanism to act; the second transmission part (122) being capable of being in driving connection with the lifting control mechanism in a second rotating direction of the driving motor (11) to drive the control valve (21) to act; the driving mechanism (1) further comprising an intermediate transmission member (12) in driving connection with the driving motor (11), the first transmission part (121) and the second transmission part (122) being integrally arranged on the intermediate transmission member (12); the intermediate transmission member (12) being a gear plate, the first transmission part (121) and the second transmission part (122) being arranged on an end face outer circumferential part of the intermediate transmission member (12), a center part of the intermediate transmission member (12) being hingedly connected with a main frame of the paddy field work vehicle, the driving motor (11) being drivingly connected with a driving gear set, the driving gear set being in meshing engagement with the intermediate transmission member (12) and capable of driving the intermediate transmission member (12) to rotate forward or reversely; the intermediate transmission member (12) being a sector gear; an end face of the gear plate of the intermediate transmission member (12) axially extending has a transmission protruding block (123), the transmission protruding block (123) being L-shaped and comprising a longitudinal section and a transverse section connected with each other, the transverse section being parallelly connected on the end face of the gear plate and capable of abutting against the clutch mechanism as the first transmission part (121), the longitudinal section being perpendicularly connected on the end face of the gear plate and capable of abutting against the lifting control mechanism (2) as the second transmission part (122).

2. The work device according to claim 1, characterized in that, a gear rotating shaft (124) fixedly extending on a hinged part of the intermediate transmission member (12) is provided, the gear rotating shaft (124) being provided with a rotating plate (125) synchronously rotating, the work device further comprising an angle sensor (13) connected with the rotating plate (125) to detect the rotating angle of the intermediate transmission member (12).

3. The work device according to claim 1, characterized by The drive gear set comprises a drive pinion (14) engaged with the intermediate transmission member (12), and the drive mechanism further comprises a gear fixing plate (15) connected with the main frame (4), wherein the gear fixing plate (15) is provided with a gear accommodating groove (151) arranged at the middle portion of the gear fixing plate (15) and used for accommodating the drive pinion (14).

4. The work device according to claim 1, characterized by The clutch mechanism (3) comprises a PTO transmission shaft (31), a PTO control pull wire (32) and a pull wire control swing arm (33) connected in sequence, the PTO transmission shaft (31) is used for starting or stopping the lifting movement of the working part mechanism, the pull wire control swing arm (33) is a hinged portion used for being hinged with the main frame (4), one end of the pull wire control swing arm (33) is connected with the PTO control pull wire (32), and the other end of the pull wire control swing arm (33) can abut against the first transmission portion (121). The lifting control mechanism (2) further comprises a four-bar linkage structure, the four-bar linkage structure comprises a driving swing arm (22), a connecting rod (23) and a driven swing arm (24), one end of the driving swing arm (22) is hinged with the main frame (4), the other end of the driving swing arm (22) is hinged with one end of the connecting rod (23), the driving swing arm (22) can abut against the second transmission portion (122), the driven swing arm (24) is hinged with the main frame (4), one end of the driven swing arm (24) is hinged with the other end of the connecting rod (23) away from the driving swing arm (22), and the other end of the driven swing arm (24) is in transmission connection with the control valve (21).

5. A paddy field working vehicle characterized by comprising: The paddy field working vehicle comprises the working device according to any one of claims 1 to 4.

6. The paddy field working vehicle according to claim 5, characterized by The paddy field working vehicle further comprises a working part mechanism and a chassis provided with a main frame (4), the working part mechanism is arranged on the chassis, and the lifting control mechanism and the drive mechanism are both arranged outside the main frame (4). The paddy field working vehicle comprises the working device according to any one of claims 1 to 4.

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