Cleaning sieve adjusting system and harvester

Abstract

The utility model relates to the field of agricultural harvesting machinery, and discloses a sorting sieve adjusting system and a harvester, the sorting sieve adjusting system comprises a sorting sieve, a sorting sieve adjusting device and a sorting sieve adjusting device, the sorting sieve adjusting device comprises a sieve frame, a rotating shaft rotatably connected to the sieve frame in a penetrating manner, and a sieve piece connected to the rotating shaft; the opening degree adjusting assembly comprises a power device and a transmission mechanism arranged outside the screen frame, and the transmission mechanism is connected between the rotating shaft and the power device and can be driven by the power device to drive the rotating shaft to rotate; and the cab control structure is used for being arranged in a cab of the harvester to control the power device to start and stop. By means of the arrangement, in the process of adjusting the opening degree of the cleaning screen, an operator can conduct real-time adjustment in a cab in the whole process, the operator does not need to stop and get off a vehicle to conduct manual adjustment, time and labor are saved, the opening degree adjusting efficiency of the cleaning screen is greatly improved, and the comfort degree of the operator is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of agricultural harvesting machinery, and specifically relates to a cleaning screen adjustment system and a harvester. Background Art

[0002] The harvester's cleaning screen is the primary component for grain screening. When harvesting crops of varying moisture content or varieties, the screen opening must be adjusted to ensure effective cleaning and minimize harvesting losses. Existing screen opening adjustment devices require manual mechanical adjustment, and the operating handle is located near the screen box. This requires the driver to stop the machine and move to the rear of the vehicle to operate the adjustment, making the process time-consuming and labor-intensive, and preventing real-time adjustments. Utility Model Content

[0003] The purpose of this application is to provide a cleaning screen adjustment system and a harvester, which can enable operators to adjust the opening of the cleaning screen in real time in the cab of the harvester, saving time and effort.

[0004] In order to achieve the above objectives, the present application provides a cleaning screen adjustment system, which includes:

[0005] The cleaning screen comprises a screen frame, a rotating shaft rotatably connected to the screen frame, and a screen plate connected to the rotating shaft;

[0006] an opening adjustment assembly, comprising a power device and a transmission mechanism disposed outside the screen frame, wherein the transmission mechanism is connected between the rotating shaft and the power device and can drive the rotating shaft to rotate under the drive of the power device; and

[0007] The cab control structure is used to be arranged in the cab of the harvester to control the start and stop of the power unit.

[0008] In some embodiments, the transmission mechanism includes a linear connecting rod, a rotating connecting rod, a push-pull connecting rod and an adjusting connecting rod, wherein the rotating connecting rod is rotatably connected to the screen frame, and the two ends of the rotating connecting rod are respectively hinged with the push-pull connecting rod and the linear connecting rod, the push-pull connecting rod is connected to the adjusting connecting rod, and the adjusting connecting rod is movably connected to the rotating shaft;

[0009] Wherein, under the drive of the power device, the linear connecting rod can generate linear displacement to drive the rotating connecting rod to rotate, so that the rotating connecting rod can drive the adjustment connecting rod to move through the push-pull connecting rod, and the adjusting connecting rod can drive the rotating shaft to rotate.

[0010] In some embodiments, the adjusting link and the rotating shaft are perpendicular to each other, the adjusting link is formed with a link groove portion, and the rotating shaft is formed with a rotating shaft bending portion, and the rotating shaft bending portion can movably extend into the connecting rod groove portion;

[0011] Wherein, under the drive of the power device, the adjusting connecting rod can move in a direction perpendicular to the rotating shaft, and can drive the rotating shaft bending portion to rotate through the connecting rod groove portion to make the rotating shaft rotate.

[0012] In some embodiments, the cleaning screen, the rotating connecting rod, the push-pull connecting rod and the adjusting connecting rod are each provided with two, the two rotating connecting rods are respectively hinged to the two ends of the linear connecting rod, the two push-pull connecting rods are respectively hinged to the two rotating connecting rods, the two adjusting connecting rods are respectively connected to the two push-pull connecting rods, and the rotating shafts in the two cleaning screens are respectively movably connected to the two adjusting connecting rods.

[0013] In some embodiments, the transmission mechanism further includes a connecting sleeve sleeved on the linear connecting rod and connected to the power device.

[0014] In some embodiments, the cleaning screen adjustment system includes an opening detection device for detecting the opening of the cleaning screen and electrically connected to the cab control structure.

[0015] In some embodiments, the cab control structure includes a display device electrically connected to the opening detection device and capable of displaying opening information of the cleaning screen.

[0016] In some embodiments, the cab control structure includes a display device, which is electrically connected to the power device and is provided with a control interface for controlling the power device.

[0017] In some embodiments, the cab control structure includes an armrest box, which is electrically connected to the power device and is provided with buttons for controlling the power device.

[0018] The second aspect of the present application also provides a harvester, which includes the above-mentioned cleaning screen adjustment system.

[0019] Through the above technical solution, when the cleaning screen adjustment system of the present application is adopted, the operator can start the power device in the opening adjustment assembly by manipulating the cab control structure, and the power device drives the transmission mechanism outside the screen frame to drive the rotating shaft of the cleaning screen to rotate, thereby causing the screen connected to the rotating shaft to swing, thereby achieving the opening adjustment of the cleaning screen. After completing the opening adjustment of the cleaning screen, the operator can stop the power device by manipulating the cab control structure to stop the rotating shaft. It can be seen that in the process of adjusting the opening of the cleaning screen, the operator can make real-time adjustments in the cab throughout the process without having to stop the machine and get off the vehicle for manual adjustment, thus saving time and effort, greatly improving the efficiency of the opening adjustment of the cleaning screen, and improving the comfort of the operator.

[0020] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without inventive work. In the drawings:

[0022] Figure 1 This is a partial schematic diagram of a cleaning screen adjustment system in a specific embodiment of the present application.

[0023] Description of Reference Numerals

[0024] 1 Power unit 2 Locating pin

[0025] 3 Bolts 4 Connecting sleeve

[0026] 5 Linear connecting rod 6 Ball joint bearing

[0027] 7 Rotating connecting rod 8 Stud

[0028] 9 Lock nut 10 Pin

[0029] 11 Push-pull connecting rod 12 Screen

[0030] 13 cotter pin 14 shaft

[0031] 15 Adjusting connecting rod DETAILED DESCRIPTION

[0032] The following describes the specific embodiments of the present application in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application and are not intended to limit the present application.

[0033] Reference Figure 1 The first exemplary embodiment of the present application provides a cleaning screen adjustment system, the cleaning screen adjustment system comprising:

[0034] The cleaning screen comprises a screen frame, a rotating shaft 14 rotatably connected to the screen frame, and a screen plate 12 connected to the rotating shaft 14;

[0035] The opening adjustment assembly includes a power device 1 and a transmission mechanism arranged outside the screen frame. The transmission mechanism is connected between the rotating shaft 14 and the power device 1. The transmission mechanism can drive the rotating shaft 14 to rotate under the drive of the power device 1, and then drive the screen 12 to swing, thereby realizing the opening adjustment of the cleaning screen;

[0036] The cab control structure is used to be set in the cab of the harvester to control the start and stop of the power unit 1.

[0037] It should be noted that the screen frame of the cleaning screen can be rotatably connected to multiple parallel rotating shafts 14, and the transmission mechanism of the opening adjustment assembly can drive the multiple rotating shafts 14 to rotate simultaneously. In addition, the cleaning screen can also be provided with more than one screen frame. In this case, the rotating shaft 14 can simultaneously connect to multiple screen frames, so that when the transmission mechanism drives the rotating shaft 14 to rotate, the screen plates 12 in the multiple screen frames can swing synchronously.

[0038] Through the above-mentioned arrangement, when using the cleaning screen adjustment system of the present application, the operator can operate the cab control structure to start the power device 1 in the opening adjustment assembly. The power device 1 drives the transmission mechanism outside the screen frame to rotate the rotating shaft 14 of the cleaning screen, thereby causing the screen 12 connected to the rotating shaft 14 to swing, thereby adjusting the opening of the cleaning screen. More specifically, the power device 1 can drive the rotating shaft 14 to rotate forward or reverse to increase or decrease the opening of the cleaning screen. After completing the opening adjustment of the cleaning screen, the operator can stop the power device 1 by operating the cab control structure to stop the rotating shaft 14.

[0039] It can be seen that in the process of adjusting the opening of the cleaning screen, the operator can make real-time adjustments in the cab throughout the process without having to stop the machine and get off the vehicle for manual adjustment. This saves time and effort, greatly improves the efficiency of adjusting the opening of the cleaning screen, and enhances the comfort of the operator.

[0040] In some embodiments, the transmission mechanism includes a linear link 5, a rotating link 7, a push-pull link 11, and an adjustment link 15. Specifically, the rotating link 7 is rotatably connected to the screen frame, and its two ends are respectively hinged with the push-pull link 11 and the linear link 5. The push-pull link 11 is connected to the adjustment link 15, and the adjustment link 15 is movably connected to the rotating shaft 14. At this time, under the drive of the power device 1, the linear link 5 can generate linear displacement to drive the rotating link 7 to rotate, so that the rotating link 7 can drive the adjustment link 15 to move via the push-pull link 11, and the adjustment link 15 can drive the rotating shaft 14 to rotate, thereby driving the screen 12 to swing, thereby adjusting the opening of the cleaning screen.

[0041] For example, refer to Figure 1The end of the linear link 5 can be hinged to one end of the rotating link 7 through a ball joint bearing 6, and the other end of the rotating link 7 can be hinged to one end of the push-pull link 11 through a pin 10. The rotating link 7 is rotatably connected to the screen frame through a stud 8 on the screen frame. The end of the stud 8 is connected to a locking nut 9 to limit the rotating link 7 and prevent the rotating link 7 from being separated from the stud 8. In addition, the other end of the push-pull link 11 can pass through the hole opened on the adjustment link 15 and be fixed by a cotter pin 13, thereby realizing the connection between the push-pull link 11 and the adjustment link 15.

[0042] Based on the specific structural composition of the transmission mechanism in this embodiment, under the drive of the power device 1, the transmission mechanism can realize stepless adjustment of the opening of the screening screen, can expand more adjustment range areas, and effectively improve the adjustment accuracy.

[0043] In some embodiments, the adjusting link 15 is perpendicular to the rotating shaft 14, the adjusting link 15 is formed with a link groove, and the rotating shaft 14 is formed with a rotating shaft bent portion (e.g., a U-shaped bent portion), which can movably extend into the link groove. At this time, under the drive of the power device 1, the linear link 5 can generate a linear displacement to drive the rotating link 7 to rotate, so that the rotating link 7 can drive the adjusting link 15 to move in a direction perpendicular to the rotating shaft 14 through the push-pull link 11, and the adjusting link 15 can drive the rotating shaft bent portion of the rotating shaft 14 to rotate through its link groove, so that the rotating shaft 14 rotates as a whole to drive the screen 12 to swing, thereby adjusting the opening of the cleaning screen.

[0044] It should be noted that the present application does not limit the movable connection mode between the adjusting link 15 and the rotating shaft 14. The above embodiments are only used as examples and cannot be regarded as limitations of the present application.

[0045] In some embodiments, reference Figure 1 The cleaning screen, the rotating connecting rod 7, the push-pull connecting rod 11, and the adjusting connecting rod 15 are each provided with two. Specifically, the two rotating connecting rods 7 are respectively hinged to the two ends of the linear connecting rod 5, the two push-pull connecting rods 11 are respectively hinged to the two rotating connecting rods 7, the two adjusting connecting rods 15 are respectively connected to the two push-pull connecting rods 11, and the rotating shafts 14 in the two cleaning screens are respectively movably connected to the two adjusting connecting rods 15.

[0046] At this time, driven by the power device 1, the linear connecting rod 5 can generate linear displacement to drive the two rotating connecting rods 7 to rotate synchronously, so that the two rotating connecting rods 7 can respectively drive the two adjusting connecting rods 15 to displace through the two push-pull connecting rods 11, and the two adjusting connecting rods 15 can respectively drive the rotating shafts 14 in the two cleaning screens to rotate, so that the opening of the two cleaning screens can be adjusted at the same time by a single linear connecting rod 5, which is conducive to simplifying the structure of the cleaning screen adjustment system and reducing costs.

[0047] In some embodiments, the transmission mechanism further includes a connecting sleeve 4 that is sleeved on the linear connecting rod 5 and connected to the power device 1. In this case, the power device 1 can drive the linear connecting rod 5 to generate linear displacement through the connecting sleeve 4.

[0048] For example, refer to Figure 1 The connecting sleeve 4 can be fixed to the movable part of the power device 1 by using the bolt 3, and the fixed part of the power device 1 can be fixed to the screen frame by using the positioning pin 2.

[0049] In addition, the present application does not limit the specific selection of the power device 1. For example, electric push rods, hydraulic push rods, etc. are all within the scope of the present application.

[0050] In some embodiments, the cleaning screen adjustment system may include an opening detection device for detecting the opening of the cleaning screen and electrically connected to the cab control structure. The opening detection device can send the detected opening information of the cleaning screen to the cab control structure. The cab control structure can control the start and stop timing of the power unit 1 according to the control instructions of the operator and the opening information of the cleaning screen, thereby ensuring that the opening of the cleaning screen meets the needs of the operator and realizing closed-loop control of the opening of the cleaning screen.

[0051] The present application does not limit the specific selection of the opening detection device. For example, angle sensors and visual sensors used to detect the swing angle of the screen 12 are all within the scope of the present application.

[0052] In some embodiments, the cab control structure includes a display device electrically connected to the opening detection device and capable of displaying information about the cleaning screen opening. This arrangement allows operators to monitor the cleaning screen opening in real time from the cab via the display device, allowing them to adjust the cleaning screen opening based on experience without having to first stop the machine, exit the vehicle, observe the screen opening, and then return to the cab to adjust it.

[0053] In some embodiments, the display device is electrically connected to the power device 1 and is provided with a control interface for controlling the power device 1. In this case, the power device 1 can be started and stopped through the control interface, thereby adjusting the opening of the cleaning screen.

[0054] For example, a touch slider for adjusting the opening (or other forms such as a click button) can be set on the control interface. By touching and sliding the slider, the opening of the cleaning screen can be adjusted in real time.

[0055] Alternatively, a text input box may be provided on the control interface, and the operator may input a specific target opening value in the text input box, and the cab control structure may automatically control the start and stop of the power unit 1 to adjust the opening of the cleaning screen to the target opening value.

[0056] In some embodiments, the cab control structure includes an armrest box, which is electrically connected to the power unit 1 and is provided with buttons for controlling the power unit 1. At this time, the power unit 1 can be started and stopped by pressing the buttons on the armrest box, thereby adjusting the opening of the cleaning screen.

[0057] The key press control can be divided into two modes: inching and long pressing. For example, when the key is pressed quickly (e.g., the pressing time is greater than 100ms and less than 500ms), the corresponding value will be set according to the step value. When the key is pressed long (e.g., the pressing time is greater than 500ms), the power device 1 will continue to operate for the duration of the pressing, thereby continuously adjusting the opening of the cleaning screen.

[0058] The second exemplary embodiment of the present application also provides a harvester, which includes the above-mentioned cleaning screen adjustment system.

[0059] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0060] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0062] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. Cleaning screen adjustment system, characterized in that: include: A cleaning screen comprises a screen frame, a rotating shaft (14) rotatably connected to the screen frame, and a screen plate (12) connected to the rotating shaft (14); An opening adjustment assembly comprises a power device (1) and a transmission mechanism arranged outside the screen frame, wherein the transmission mechanism is connected between the rotating shaft (14) and the power device (1) and can drive the rotating shaft (14) to rotate under the drive of the power device (1); and A cab control structure is used to be arranged in the cab of the harvester to control the start and stop of the power device (1).

2. The cleaning screen adjustment system according to claim 1, characterized in that: The transmission mechanism comprises a linear connecting rod (5), a rotating connecting rod (7), a push-pull connecting rod (11) and an adjusting connecting rod (15); the rotating connecting rod (7) is rotatably connected to the screen frame; the two ends of the rotating connecting rod (7) are respectively hinged with the push-pull connecting rod (11) and the linear connecting rod (5); the push-pull connecting rod (11) is connected to the adjusting connecting rod (15); and the adjusting connecting rod (15) is movably connected to the rotating shaft (14); Wherein, under the drive of the power device (1), the linear connecting rod (5) can generate linear displacement to drive the rotating connecting rod (7) to rotate, so that the rotating connecting rod (7) can drive the adjusting connecting rod (15) to move through the push-pull connecting rod (11), and the adjusting connecting rod (15) can drive the rotating shaft (14) to rotate.

3. The cleaning screen adjustment system according to claim 2, characterized in that: The adjusting connecting rod (15) and the rotating shaft (14) are perpendicular to each other, the adjusting connecting rod (15) is formed with a connecting rod groove portion, and the rotating shaft (14) is formed with a rotating shaft bending portion, and the rotating shaft bending portion can movably extend into the connecting rod groove portion; Wherein, under the drive of the power device (1), the adjusting connecting rod (15) can move in a direction perpendicular to the rotating shaft (14), and can drive the rotating shaft bending portion to rotate through the connecting rod groove portion to cause the rotating shaft (14) to rotate.

4. The cleaning screen adjustment system according to claim 2, characterized in that: The cleaning screen, the rotating connecting rod (7), the push-pull connecting rod (11) and the adjusting connecting rod (15) are each provided with two, the two rotating connecting rods (7) are respectively hinged with the two ends of the linear connecting rod (5), the two push-pull connecting rods (11) are respectively hinged with the two rotating connecting rods (7), the two adjusting connecting rods (15) are respectively connected with the two push-pull connecting rods (11), and the rotating shafts (14) in the two cleaning screens are respectively movably connected with the two adjusting connecting rods (15).

5. The cleaning screen adjustment system according to claim 2, characterized in that: The transmission mechanism further comprises a connecting sleeve (4) sleeved on the linear connecting rod (5) and connected to the power device (1).

6. The cleaning screen adjustment system according to claim 1, characterized in that: The cleaning screen adjustment system includes an opening detection device for detecting the opening of the cleaning screen and electrically connected to the cab control structure.

7. The cleaning screen adjustment system according to claim 6, characterized in that: The cab control structure includes a display device electrically connected to the opening detection device and capable of displaying opening information of the cleaning screen.

8. The cleaning screen adjustment system according to claim 1, characterized in that: The cab control structure comprises a display device, which is electrically connected to the power device (1) and is provided with a control interface for controlling the power device (1).

9. The cleaning screen adjustment system according to claim 1, characterized in that: The cab control structure comprises an armrest box, which is electrically connected to the power device (1) and is provided with buttons for controlling the power device (1).

10. A harvester, characterized in that: The cleaning screen adjustment system comprises the cleaning screen adjustment system according to any one of claims 1 to 9.

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