CN111512797A - Adjusting device and adjusting method for 3D sorting screen of combined harvester - Google Patents

Adjusting device and adjusting method for 3D sorting screen of combined harvester Download PDF

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Publication number
CN111512797A
CN111512797A CN202010489259.2A CN202010489259A CN111512797A CN 111512797 A CN111512797 A CN 111512797A CN 202010489259 A CN202010489259 A CN 202010489259A CN 111512797 A CN111512797 A CN 111512797A
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CN
China
Prior art keywords
cleaning sieve
stepping motor
sieve body
inclination angle
rotating shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010489259.2A
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Chinese (zh)
Inventor
王国强
李晶
管远红
苏瑞
蔡蕾
杨金歌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Agri Animal Husbandry Vocational College
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Jiangsu Agri Animal Husbandry Vocational College
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Publication date
Application filed by Jiangsu Agri Animal Husbandry Vocational College filed Critical Jiangsu Agri Animal Husbandry Vocational College
Priority to CN202010489259.2A priority Critical patent/CN111512797A/en
Publication of CN111512797A publication Critical patent/CN111512797A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00—Parts or details of threshing apparatus
    • A01F12/44—Grain cleaners; Grain separators
    • A01F12/446—Sieving means
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • A01D41/127—Control or measuring arrangements specially adapted for combines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00—Parts or details of threshing apparatus
    • A01F12/44—Grain cleaners; Grain separators
    • A01F12/446—Sieving means
    • A01F12/448—Sieve adjusting means
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00—Parts or details of threshing apparatus
    • A01F12/58—Control devices; Brakes; Bearings

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses a 3D sorting screen adjusting device of a combine harvester, which comprises: a base plate; mounting a plate; a cleaning screen body; the driving device comprises a supporting seat, a stepping motor and a driving gear, the stepping motor is fixedly mounted at the top of the supporting seat through a bolt, and the driving gear is meshed with the transmission gear; a control module; a tilt sensor; according to the invention, the stepping motor drives the driving gear to rotate, then the driving gear drives the driven gear to rotate through the transmission gear, and then the rotating shaft is driven to rotate, so that the cleaning sieve body is driven to rotate around the axial lead of the rotating shaft, and then one end of the cleaning sieve body, which is far away from the rotating shaft, is lifted or lowered as required, so that the inclination angle of the cleaning sieve body is adjusted.

Description

Adjusting device and adjusting method for 3D sorting screen of combined harvester
Technical Field
The invention relates to the technical field of 3D (three-dimensional) cleaning sieves of combined harvesters, in particular to a 3D cleaning sieve adjusting device and an adjusting method of a combined harvester.
Background
The combine harvester is a kind of machinery that can finish various operations such as harvesting, threshing, separating and cleaning of the grain at the same time and finally obtain clean grain, the combine harvester generally consists of a header, a threshing system (including threshing, separating and cleaning devices), a conveying, rotating and walking device, a grain compartment and an operating mechanism; the combined harvester is used, so that the labor productivity can be greatly improved, and the labor intensity can be reduced; the power configuration mode can be divided into a traction type, a self-propelled type and a suspension type.
In order to improve cleaning efficiency and overall efficiency, need adjust the inclination of cleaning sieve as required, current patent number is CN201611222255.8 provides a combine cleaning sieve inclination automatic regulating apparatus, including the straight line slip table, servo motor cleaning sieve, the angular transducer device, control system etc. is constituteed, angular transducer installs at cleaning sieve afterbody, the straight line slip table is vertical direction installation, install roller guide rail plate on the work slider of straight line slip table, under servo motor's drive, drive the motion of work slider, and then drive roller guide rail plate motion, just also realized the adjustable of cleaning sieve inclination.
But this adjusting device has the defect when using, adjusts the clearance sieve slope through the removal of roller guide rail board on sharp slip table, and the structure is complicated, and the removal space of roller guide rail board is limited moreover, and when reaping crops, the crop straw stops roller guide rail board to remove easily to cause the unable regulation of inclination of clearance sieve.
Disclosure of Invention
The invention aims to provide a device and a method for adjusting a 3D sorting screen of a combine harvester, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a combine 3D cleaning screen adjustment device, comprising: a base plate; the cleaning and sorting device comprises a mounting plate, a cleaning and sorting device and a cleaning and sorting device, wherein a cleaning and sorting groove is formed in the upper surface of the mounting plate; the cleaning sieve body is arranged inside the cleaning groove, a rotating shaft is inserted into one end of the cleaning sieve body, the cleaning sieve body is rotatably installed on the inner side of the cleaning groove through the rotating shaft, a driven gear is fixedly installed at one end, located on the outer side of the mounting plate, of the rotating shaft through a bolt, a transmission gear is rotatably installed on one side, close to the driven gear, of the outer side of the mounting plate, and the transmission gear is meshed with the driven gear; the driving device comprises a supporting seat, a stepping motor and a driving gear, the supporting seat is fixedly installed on the upper surface of the bottom plate through a bolt, the stepping motor is fixedly installed at the top of the supporting seat through a bolt, the driving gear is fixedly installed at the output end of the stepping motor through a bolt, and the driving gear is meshed with the transmission gear; a control module; the inclination angle sensor is embedded in the center of the lower surface of the cleaning sieve body and used for detecting the inclination angle of the cleaning sieve body; the control module is respectively and electrically connected with the stepping motor and the inclination angle sensor.
The mounting plate is provided with a mounting plate, wherein the mounting plate is provided with a shaft sleeve, the shaft sleeve is matched with the mounting plate, the shaft sleeve is inserted into the mounting plate, and the shaft sleeve is rotatably connected with the mounting plate.
Wherein, the cleaning sieve body is kept away from the both sides of pivot one end all have the slider through bolt fixed mounting, clean recess inner wall and seted up the cooperation the arc spout of slider.
The center of the arc-shaped sliding groove and the axis of the rotating shaft are positioned on the same straight line.
Wherein, still include: the control module controls the stepping motor to work through the direct current controller, the signal output end of the control module is electrically connected with the signal input end of the direct current controller, the signal output end of the direct current controller is electrically connected with the signal input end of the stepping motor, and the direct current controller is used for controlling the rotating speed of the output shaft of the stepping motor.
Wherein, still include: the power supply module further comprises an AC-DC converter, the power supply module is electrically connected with the control module through the AC-DC converter, the power supply module adopts an external power supply, and the AC-DC converter is used for converting alternating current of the power supply module into direct current.
Wherein, still include: the display module comprises a display screen, and the control module is electrically coupled with the display module.
The control module controls the display screen to display the inclination angle information of the sorting screen body detected by the inclination angle sensor.
The brake device is characterized in that a brake device is additionally arranged at the tail of the stepping motor and connected on a circuit of the stepping motor in parallel.
When the stepping motor is electrified, the band-type brake device is also electrified, the band-type brake device is separated from an output shaft of the stepping motor, and the output shaft of the stepping motor runs normally.
When the stepping motor is powered off, the brake device is also powered off, the brake device releases to tightly hold the output shaft of the stepping motor, and the output shaft of the stepping motor is locked.
A method for adjusting a 3D sorting screen adjusting device of a combine harvester comprises the following steps:
s1, detecting the inclination angle of the cleaning sieve body in real time through an inclination angle sensor, converting the detected inclination angle value of the cleaning sieve body into an electric signal through the inclination angle sensor, uploading the electric signal to a control module, transmitting the received inclination angle signal uploaded by the inclination angle sensor to a display module through the control module, and displaying the inclination angle value of the cleaning sieve body through a display screen;
s2, if one end of the cleaning sieve body needs to be lifted, an output shaft of the stepping motor is controlled to rotate anticlockwise through the control module, then the stepping motor drives the driving gear to rotate anticlockwise, then the cleaning sieve body is driven to rotate around the rotating shaft through the matching of the driving gear, the transmission gear and the driven gear, then one end, far away from the rotating shaft, of the cleaning sieve body rotates anticlockwise around the rotating shaft, so that one end, far away from the rotating shaft, of the cleaning sieve body is lifted, the inclination angle of the cleaning sieve body is monitored in real time through the inclination angle sensor, after the lifting angle of one end, far away from the rotating shaft, of the cleaning sieve body is at a specified angle, the stepping motor is turned off through the control module, and then;
s3, if one end of the cleaning sieve body needs to be lowered, the output shaft of the stepping motor is controlled to rotate clockwise through the control module, then the stepping motor drives the driving gear to rotate clockwise, then the driving gear is matched with the driven gear through the driving gear, the cleaning sieve body is driven to rotate around the rotating shaft, then one end, far away from the rotating shaft, of the cleaning sieve body rotates clockwise around the rotating shaft, so that one end, far away from the rotating shaft, of the cleaning sieve body is lowered, the inclination angle of the cleaning sieve body is monitored through the inclination angle sensor in real time, the stepping motor is closed through the control module, and then the cleaning sieve body is stabilized at an appointed inclination angle.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the stepping motor drives the driving gear to rotate, then the driving gear drives the driven gear to rotate through the transmission gear, and then the rotating shaft is driven to rotate, so that the cleaning sieve body is driven to rotate around the axial lead of the rotating shaft, and then one end of the cleaning sieve body, which is far away from the rotating shaft, is lifted or lowered as required, so that the inclination angle of the cleaning sieve body is adjusted.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic top view of the cross-sectional structure of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a schematic front view of the driving device of the present invention;
FIG. 5 is a schematic cross-sectional front view of the mounting plate of the present invention;
FIG. 6 is a diagram illustrating a hardware control system according to the present invention.
In FIGS. 1-6: 10-a base plate; 20-mounting a plate; 21-cleaning grooves; 22-shaft sleeve; 23-arc chute; 24-a driven gear; 25-a transmission gear; 30-a cleaning sieve body; 31-a rotating shaft; 32-a slide block; 40-a drive device; 41-a support seat; 42-a stepper motor; 43-a drive gear; 50-a control module; 51-a direct current controller; 60-a power supply module; a 61-AC-DC converter; 70-a tilt sensor; 80-a display module; 81-display screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a combine 3D cleaning screen adjustment device, comprising: bottom plate 10, mounting plate 20, cleaning screen body 30, drive arrangement 40, control module 50, power module 60, inclination sensor 70 and display module 80.
The bottom plate 10 is arranged at the bottom of the cleaning sieve body 30, and the bottom plate 10 is fixedly installed at the position, located at the bottom of the cleaning sieve body 30, of the combine harvester through bolts.
Wherein, the base plate 10 is made of stainless steel material, and the base plate 10 is used for installing the driving device 40.
The mounting plate 20 is made of three stainless steel plates, a cleaning groove 21 is formed by surrounding the three stainless steel plates, and then the cleaning screen body 30 is rotatably mounted on the inner side of the cleaning groove 21.
Wherein, the pivot 31 is pegged graft to cleaning sieve body 30 one end, and cleaning sieve body 30 rotates through pivot 31 and installs at cleaning recess 21 inboard, and the one end that the pivot 31 is located the mounting panel 20 outside has driven gear 24 through bolt fixed mounting, and the one side that the mounting panel 20 outside is close to driven gear 24 rotates installs drive gear 25, and drive gear 25 and driven gear 24 meshing.
Wherein, drive arrangement 40 includes supporting seat 41, step motor 42 and driving gear 43, and supporting seat 41 passes through bolt fixed mounting at the bottom plate 10 upper surface, and there is step motor 42 at the supporting seat 41 top through bolt fixed mounting, and there is driving gear 43 at the step motor 42 output through bolt fixed mounting, and driving gear 43 meshes with drive gear 25.
Wherein, drive driving gear 43 through step motor 42 and rotate, then driving gear 43 drives drive gear 25 and rotates, then drive gear 25 drives driven gear 24 and rotates to drive pivot 31 and rotate, then cleaning sieve body 30 rotates around the axial lead of pivot 31, thereby adjusts the inclination of cleaning sieve body 30.
Wherein, the axle sleeve 22 of cooperation pivot 31 is all inlayed to mounting panel 20 both sides, and pivot 31 pegs graft inside axle sleeve 22, and pivot 31 with axle sleeve 22 rotates and is connected.
Wherein, the rotating shaft 31 is matched with the shaft sleeve 22, which facilitates the rotating shaft 31 to rotate at the inner side of the cleaning groove 21, thereby driving the cleaning sieve body 30 to rotate around the axial lead of the rotating shaft 31.
Wherein, the both sides of cleaning sieve body 30 keeping away from pivot 31 one end all have slider 32 through bolt fixed mounting, clean the arc spout 23 that the recess 21 inner wall was seted up cooperation slider 32.
The sliding block 32 is of a cylindrical structure, and when the cleaning sieve body 30 rotates around the axis of the rotating shaft 31, through the cooperation of the sliding block 32 and the arc-shaped chute 23, one end of the cleaning sieve body 30, which is far away from the rotating shaft 31, can rotate along the track of the arc-shaped chute 23, so that the position of the cleaning sieve body 30 is limited, and the cleaning sieve body 30 is prevented from shifting in the process of adjusting the inclination angle.
The center of the arc chute 23 and the axis of the rotating shaft 31 are located on the same straight line, so that the rotating track of the sliding block 32 along with the cleaning sieve body 30 is the same as that of the arc chute 23, and the sliding block 32 can slide in the arc chute 23.
The control module 50 may be a circuit including at least one processor, a circuit including at least one single chip, or a combination of multiple circuits or chips, as long as the corresponding functions can be realized. It will be appreciated by those skilled in the art that the control module 50 may also implement the corresponding functions in a purely hardware manner for a common circuit composed of an amplifier, a comparator, a triode, a MOS transistor, etc.
The control module 50 controls the stepping motor 42 to work through the dc controller 51, the signal output end of the control module 50 is electrically connected with the signal input end of the dc controller 51, the signal output end of the dc controller 51 is electrically connected with the signal input end of the stepping motor 42, and the dc controller 51 is used for controlling the rotating speed of the output shaft of the stepping motor 42.
The dc controller 51 is a siwei TPD32 dc controller.
The control module 50 controls the circuit of the stepping motor 42 to be opened and closed, and the dc controller 51 controls the rotation speed of the output shaft of the stepping motor 42.
The power supply module 60 further includes an AC-DC converter 61, the power supply module 60 is electrically connected to the control module 50 through the AC-DC converter 61, the power supply module 60 adopts an external power supply, and the AC-DC converter 61 is configured to convert the alternating current of the power supply module 60 into direct current.
Among them, the AC power of the external power source is converted into the DC power used by the successful device by the AC-DC converter 61.
Wherein, the inclination angle sensor 70 is embedded in the center of the lower surface of the cleaning sieve body 30, and the inclination angle sensor 70 is used for detecting the inclination angle of the cleaning sieve body 30; the control module 50 is electrically connected to the tilt sensor 70.
The display module 80 includes a display screen, and the control module 50 is electrically coupled to the display module 80.
Wherein, the control module 50 controls the display screen 81 to display the inclination angle information of the sorting screen body 30 detected by the inclination angle sensor 70.
Wherein, detect the inclination of cleaning sieve body 30 through inclination sensor 70 in real time, then inclination sensor 70 will detect the inclination numerical value conversion of cleaning sieve body 70 and be the signal of telecommunication to upload to control module 50, then control module 50 sends the inclination signal that received inclination sensor 70 uploaded to display module 80, then shows the inclination numerical value of cleaning sieve body 30 through display screen 81.
The control module 50 and the display screen 81 are disposed in a control room of the combine harvester, so that the operation of a driver is facilitated.
Wherein, a band-type brake device is additionally arranged at the tail part of the stepping motor 42 and is connected in parallel on a circuit of the stepping motor 42.
When the stepping motor 42 is powered on, the band-type brake device is also powered on, the band-type brake device is separated from the output shaft of the stepping motor 42, and the output shaft of the stepping motor 42 runs normally.
When the stepping motor 42 is powered off, the brake device is also powered off, the brake device releases to tightly hold the output shaft of the stepping motor 42, and the output shaft of the stepping motor 42 is locked.
A method for adjusting a 3D sorting screen adjusting device of a combine harvester comprises the following steps:
s1, detecting the inclination angle of the cleaning sieve body 30 in real time through the inclination sensor 70, then converting the detected inclination angle value of the cleaning sieve body 70 into an electrical signal by the inclination sensor 70, uploading the electrical signal to the control module 50, then transmitting the received inclination angle signal uploaded by the inclination sensor 70 to the display module 80 by the control module 50, and then displaying the inclination angle value of the cleaning sieve body 30 through the display screen 81;
s2, if one end of the cleaning sieve body 30 needs to be lifted, the control module 50 controls the output shaft of the stepping motor 42 to rotate counterclockwise, then the stepping motor 42 drives the driving gear 43 to rotate counterclockwise, then the driving gear 43, the transmission gear 25 and the driven gear 24 are matched to drive the cleaning sieve body 30 to rotate around the rotating shaft 31, then one end of the cleaning sieve body 30 away from the rotating shaft 31 rotates counterclockwise around the rotating shaft 31, so as to lift one end of the cleaning sieve body 30 away from the rotating shaft 31, and monitor the inclination angle of the cleaning sieve body 30 in real time through the inclination angle sensor 70, when the lifting angle of one end of the cleaning sieve body 30 away from the rotating shaft 31 is specified, the control module 50 turns off the stepping motor 42, and then the cleaning sieve body 30 is stabilized at the specified inclination angle;
s3, if it is necessary to lower one end of the cleaning sieve body 30, the control module 50 controls the output shaft of the stepping motor 42 to rotate clockwise, then the stepping motor 42 drives the driving gear 43 to rotate clockwise, then the driving gear 43, the transmission gear 25 and the driven gear 24 are matched to drive the cleaning sieve body 30 to rotate around the rotating shaft 31, then one end of the cleaning sieve body 30 far away from the rotating shaft 31 rotates clockwise around the rotating shaft 31, so as to lower the end of the cleaning sieve body 30 far away from the rotating shaft 31, monitor the inclination angle of the cleaning sieve body 30 in real time through the inclination angle sensor 70, close the stepping motor 42 through the control module 50, and then stabilize the cleaning sieve body 30 at the specified inclination angle.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a combine 3D cleaning sieve adjusting device which characterized in that includes:
a base plate (10);
the cleaning and sorting device comprises a mounting plate (20), wherein a cleaning and sorting groove (21) is formed in the upper surface of the mounting plate (20);
the cleaning sieve comprises a cleaning sieve body (30), the cleaning sieve body (30) is arranged inside a cleaning groove (21), a rotating shaft (31) is inserted into one end of the cleaning sieve body (30), the cleaning sieve body (30) is rotatably installed on the inner side of the cleaning groove (21) through the rotating shaft (31), a driven gear (24) is fixedly installed at one end, located on the outer side of the mounting plate (20), of the rotating shaft (31) through bolts, a transmission gear (25) is rotatably installed on one side, close to the driven gear (24), of the outer side of the mounting plate (20), and the transmission gear (25) is meshed with the driven gear (24);
the driving device (40) comprises a supporting seat (41), a stepping motor (42) and a driving gear (43), the supporting seat (41) is fixedly installed on the upper surface of the bottom plate (10) through bolts, the stepping motor (42) is fixedly installed at the top of the supporting seat (41) through bolts, the driving gear (43) is fixedly installed at the output end of the stepping motor (42) through bolts, and the driving gear (43) is meshed with the transmission gear (25);
a control module (50);
the inclination angle sensor (70) is embedded in the center of the lower surface of the cleaning sieve body (30), and the inclination angle sensor (70) is used for detecting the inclination angle of the cleaning sieve body (30);
the control module (50) is electrically connected with the stepping motor (42) and the inclination angle sensor (70) respectively.
2. The combine 3D scalping screen adjustment device of claim 1, comprising:
the mounting panel (20) both sides all inlay the cooperation shaft sleeve (22) of pivot (31), pivot (31) are pegged graft inside shaft sleeve (22), just pivot (31) with shaft sleeve (22) rotate to be connected.
3. The combine 3D scalping screen adjustment device of claim 2, comprising:
the cleaning sieve body (30) is far away from the two sides of one end of the rotating shaft (31) are respectively provided with a sliding block (32) through bolt fixing, and the inner wall of the cleaning groove (21) is provided with an arc-shaped sliding groove (23) matched with the sliding block (32).
4. A combine 3D scalping screen adjustment apparatus according to claim 3, comprising:
the circle center of the arc-shaped sliding chute (23) and the axis of the rotating shaft (31) are positioned on the same straight line.
5. The combine 3D scalping screen adjustment device of claim 4, further comprising:
direct current controller (51), control module (50) passes through direct current controller (51) control step motor (42) work, control module (50) signal output part with direct current controller (51) signal input part electric connection, direct current controller (51) signal output part with step motor (42) signal input part electric connection, direct current controller (51) are used for controlling the rotational speed of step motor (42) output shaft.
6. The combine 3D scalping screen adjustment device of claim 5, further comprising:
the power supply module (60), the power supply module (60) still includes AC-DC converter (61), power supply module (60) pass through AC-DC converter (61) with control module (50) electric connection, power supply module (60) adopt external power supply, AC-DC converter (61) are used for changing the alternating current of power supply module (60) into the direct current.
7. The combine 3D scalping screen adjustment device of claim 6, further comprising:
a display module (80), the display module (80) comprising a display screen, the control module (50) being electrically coupled to the display module (80);
the control module (50) controls the display screen (81) to display the inclination angle information of the sorting screen body (30) detected by the inclination angle sensor (70).
8. The combine 3D scalping screen adjustment device of claim 7, comprising:
a band-type brake device is additionally arranged at the tail of the stepping motor (42), and the band-type brake device is connected to a circuit of the stepping motor (42) in parallel;
when the stepping motor (42) is electrified, the contracting brake device is also electrified, the contracting brake device is separated from an output shaft of the stepping motor (42), and the output shaft of the stepping motor (42) runs normally;
when the stepping motor (42) is powered off, the brake device is also powered off, the brake device releases to tightly hold the output shaft of the stepping motor (42), and the output shaft of the stepping motor (42) is locked.
9. A method for adjusting a 3D sorting screen adjusting device of a combine harvester is characterized by comprising the following steps of:
s1, detecting the inclination angle of the cleaning sieve body (30) in real time through the inclination angle sensor (70), converting the detected inclination angle value of the cleaning sieve body (70) into an electric signal through the inclination angle sensor (70), uploading the electric signal to the control module (50), transmitting the received inclination angle signal uploaded by the inclination angle sensor (70) to the display module (80) through the control module (50), and displaying the inclination angle value of the cleaning sieve body (30) through the display screen (81);
s2, if the end of the cleaning screen body (30) needs to be lifted, the output shaft of the stepping motor (42) is controlled by the control module (50) to rotate anticlockwise, then the stepping motor (42) drives the driving gear (43) to rotate anticlockwise, then the cleaning sieve body (30) is driven to rotate around the rotating shaft (31) through the matching of the driving gear (43), the transmission gear (25) and the driven gear (24), then one end of the cleaning sieve body (30) far away from the rotating shaft (31) rotates anticlockwise around the rotating shaft (31), so as to lift one end of the cleaning sieve body (30) far away from the rotating shaft (31), and monitor the inclination angle of the cleaning sieve body (30) in real time through the inclination angle sensor (70), after one end of the cleaning sieve body (30) far away from the rotating shaft (31) is lifted by a specified angle, the stepping motor (42) is turned off through the control module (50), and then the sorting screen body (30) is stabilized at a specified inclination angle;
s3, if one end of the cleaning sieve body (30) needs to be lowered, the output shaft of the stepping motor (42) is controlled to rotate clockwise through the control module (50), then the stepping motor (42) drives the driving gear (43) to rotate clockwise, then the driving gear (43), the transmission gear (25) and the driven gear (24) are matched to drive the cleaning sieve body (30) to rotate around the rotating shaft (31), then one end, far away from the rotating shaft (31), of the cleaning sieve body (30) rotates clockwise around the rotating shaft (31), so that one end, far away from the rotating shaft (31), of the cleaning sieve body (30) is lowered, the inclination angle of the cleaning sieve body (30) is monitored in real time through the inclination angle sensor (70), the stepping motor (42) is closed through the control module (50), and then the cleaning sieve body (30) is stabilized at a designated inclination angle.
CN202010489259.2A 2020-06-02 2020-06-02 Adjusting device and adjusting method for 3D sorting screen of combined harvester Pending CN111512797A (en)

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