CN109906778B - Threshing device with adjustable threshing gap clamped by double-side-plate combination and combine harvester - Google Patents
Threshing device with adjustable threshing gap clamped by double-side-plate combination and combine harvester Download PDFInfo
- Publication number
- CN109906778B CN109906778B CN201910203681.4A CN201910203681A CN109906778B CN 109906778 B CN109906778 B CN 109906778B CN 201910203681 A CN201910203681 A CN 201910203681A CN 109906778 B CN109906778 B CN 109906778B
- Authority
- CN
- China
- Prior art keywords
- side plate
- threshing
- outer side
- grid
- gap
- 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.)
- Active
Links
Landscapes
- Threshing Machine Elements (AREA)
Abstract
The invention provides a threshing device with adjustable threshing gap clamped by a double-side plate combination and a combine harvester.A grid concave plate comprises grid strips, side plates and a threshing gap adjusting device, wherein a plurality of grid strips are respectively inserted into the side plates at two ends and are in clearance fit with the side plates, and the threshing gap adjusting device is arranged on the grid strips so that the grid strips move radially and tangentially in the gaps. The side plates comprise an outer side plate and an inner side plate; the outer side plate is movably arranged in the guide groove; the threshing gap adjusting device comprises tangential adjusting devices and radial adjusting devices, and the radial adjusting devices are arranged on a plurality of grid bars; one end of the outer side plate is connected with a tangential adjusting device, and the outer side plate rotates tangentially along the guide groove and is used for enabling the grid bars to move tangentially in the gap. The invention directly adjusts the grid bars, has simple structure, convenient operation and easy realization, and effectively prevents the problem of material accumulation and blockage in the threshing cylinder when the combine harvester works.
Description
Technical Field
The invention relates to the field of agricultural machinery, in particular to a threshing device with adjustable threshing gap clamped by double side plates and a combine harvester.
Background
Threshing is an important link in agricultural production, and after harvesting, the materials need to be separated from the glumes to obtain a mixture of the seeds and the glumes, so that preparation is made for further cleaning. When the combine harvester is used for harvesting in the field, grains are cut off by a cutting table, fed into a threshing separation device through an intermediate conveying device, extruded, rubbed, combed and collided with a concave plate sieve under the high-speed striking of a threshing cylinder to realize threshing, and the grains which are removed are separated from the concave plate sieve holes and enter the subsequent cleaning, and a large amount of complete stalks are discharged out of the harvester. When the threshing machine is used for harvesting, the feeding quantity can fluctuate along with different distribution densities of crops in the field, the load of the threshing cylinder can be changed directly, the threshing separation efficiency can be reduced, and even blockage can be caused when the threshing separation efficiency is serious. Therefore, the threshing gap adjusting device of the combine harvester is researched to prevent the threshing cylinder from being blocked, the working efficiency, performance and reliability of the combine harvester can be improved, and the threshing gap adjusting device has important theoretical significance and practical value. At present, scientific researchers at home and abroad also conduct some researches and inventions on a mechanism and a device for adjusting the clearance between the scientific researchers and the concave plate.
The Chinese patent discloses a threshing and separating device with automatically-adjusted concave plate clearance of a multi-roller combine harvester and an adjusting method, wherein the threshing and separating device comprises a frame, a tangential threshing roller, an integral concave plate sieve, a concave plate clearance adjusting system and a transverse axial flow threshing roller, the pressure on the integral concave plate sieve can be detected, the data acquisition and processing system processes and analyzes the acquired data, feedback signals are generated and transmitted to an electromagnetic directional valve, the concave plate clearance is adjusted by a hydraulic push rod for the pressure detection of the integral concave plate sieve of the threshing and separating device and the self-adaptive adjustment of the concave plate clearance during the field harvest of the combine harvester, and the device has low cost and convenient installation and disassembly. However, the concave plate is integrally regulated by the hydraulic push rod, so that on one hand, the integral concave plate has larger self weight and needs to consume larger energy; on the other hand, as the concave plate is integrally regulated, the distances of different positions of the concave plate along the circumferential direction are changed, so that the size of the gap of the concave plate along the circumferential direction of the roller is inconsistent, and uneven threshing can be possibly caused.
The Chinese patent discloses an automatic adjusting device and an adjusting method for a concave plate gap of a grain threshing cylinder, wherein the automatic adjusting device comprises a top cover, a threshing cylinder, a concave plate sieve, a driving motor, a frame, a stress acquisition module and a signal receiving and processing system, and the automatic adjusting device and the adjusting method for the concave plate gap of the grain threshing cylinder are characterized in that a feedback signal is transmitted to the driving motor by detecting and data processing analysis of stress on a threshing toothed bar. The invention can be used for the self-adaptive adjustment of the stress detection of the threshing tooth bar of the threshing separation device and the gap of the concave plate during the field harvest of the combine harvester, but the adjustment mode has a certain limitation aiming at the threshing device with the threshing tooth bar being spike teeth; the adjusting mode is to increase threshing gaps by rotating one side of the concave plate, which can lead to inconsistent size change of the concave plate gaps along the circumferential direction of the roller after adjustment, and if the rotating angle is too large, the threshing can be not finished due to the too large threshing gaps; if the rotation angle is too small, the drum side may be clogged, and thus a new problem may be caused.
Different concave plate gap adjusting devices are provided in the above-mentioned published patent, in the actual harvesting process, threshing gaps can be adjusted according to different factors such as the types of grains, pressure changes of concave plates during harvesting and the like, the quality of grain harvesting is ensured, and automatic control of threshing gap adjustment is also realized to a certain extent. However, the main idea of the existing research on threshing gap adjustment is to integrally adjust the concave plate, and the existing research mainly comprises synchronous up-and-down adjustment and single-side rotation adjustment of two sides of the concave plate. The synchronous up-down adjustment on the two sides generally realizes the adjustment of the concave plate by a plurality of hydraulic cylinders, the realization difficulty is relatively high, and the finer adjustment is not easy to realize; the unilateral rotation adjustment is generally to hinge and fix one side of the concave plate along the axis direction of the threshing cylinder, the other side of the concave plate is connected with a connecting rod mechanism, a gear/rack mechanism or a hydraulic mechanism, the adjustment of the gap of the concave plate is realized through the rotation of the concave plate, and the adjustment is inconvenient because of the relative complexity of a transmission mechanism, and the gap of the concave plate after the rotation adjustment is inconsistent in size along the circumferential direction of the cylinder, so that the adaptability to various operation conditions is not strong, and the threshing performance is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the threshing device with the adjustable threshing gap clamped by the double-side-plate combination and the combine harvester, which have the advantages of simple structure, convenient operation and easy realization, and effectively prevent the problem of material accumulation and blockage in the threshing cylinder of the combine harvester during working by directly adjusting the grid bars.
The present invention achieves the above technical object by the following means.
The threshing device comprises grid bars and side plates, and further comprises a threshing gap adjusting device, wherein two ends of the grid bars are respectively inserted into the side plates, the grid bars are in clearance fit with the side plates, and the threshing gap adjusting device is arranged on the grid bars to enable the grid bars to move radially and tangentially in the gaps.
Further, the side plates comprise an outer side plate and an inner side plate, and the inner side plate is used for being fixed on the frame; the outer side plate is movably arranged in the guide groove; the threshing gap adjusting device comprises a tangential adjusting device and a radial adjusting device, and a plurality of grid bars are provided with radial adjusting devices for enabling the grid bars to move radially in the gap; the outer side plate is connected with a tangential adjusting device, and the outer side plate rotates tangentially along the guide groove and is used for enabling the grid bars to move tangentially in the gap.
Further, the outer side plate and the inner side plate are respectively and uniformly provided with a plurality of waist holes which are distributed in the radial direction, and the waist holes of the outer side plate and the waist holes of the inner side plate are in one-to-one correspondence; one end of any grid strip is inserted into the waist holes of the outer side plate and the inner side plate, and any grid strip moves radially and tangentially in the waist holes.
Further, the radial adjusting device is a rocker slider mechanism, and the grid bars are connected with the rocker slider mechanism so as to enable the grid bars to move radially in the gap.
Further, the rocker slider mechanism comprises a disc, a plurality of push-pull rods and a rotating device; one end of any push-pull rod is connected with one end of any grid strip, the other end of any push-pull rod is connected with the edge of the disc, and the length of any push-pull rod is longer than the distance from the grid strip to the edge of the disc; the disc is positioned at the center of the side plate; the rotating device is used for providing power for swinging the disc.
Further, the maximum swing angle of the rocker slider mechanism is 22.5 degrees.
Further, the tangential adjusting device is a torque loading device, and one end of the outer side plate is provided with the torque loading device for applying the torque of the outer side plate moving in the guide groove.
Further, the torque loading device is a slider rocking mechanism.
Further, the device also comprises an elastic resetting device, and the other end of the outer side plate is provided with the elastic resetting device.
A combine harvester comprises the threshing device.
The invention has the beneficial effects that:
1. the threshing device with adjustable threshing gap clamped by the double-side plate combination has the advantages of direct adjustment of the grid strips, simple structure, convenient operation and easy realization, and effectively prevents the problem of material accumulation and blockage in the threshing cylinder when the combine harvester works.
2. According to the threshing device with the adjustable threshing gap clamped by the double-side plate combination, the grid strips can move rapidly through the push-pull rod, the disc and the rotating device, the gap between the concave plates can be adjusted better, and the threshing efficiency is improved.
3. According to the threshing device with the adjustable threshing gap of the double-side plate combination clamp, tangential clamping relaxation of the outer side plate to the grid bars is realized through the elastic action of the tangential adjusting device.
4. The threshing device with adjustable threshing gap clamped by the double-side plate combination has the advantages that the rotating angle of the disc is continuous, the movement process is consistent, the grid bars can be kept in a non-stop state in the movement, and the grid bars can be better adjusted.
5. The threshing device with adjustable threshing gap clamped by the double-side plate combination provides a new thought for adjusting the gap of the concave plate by directly adjusting the adjusting mode of the grid bars, solves the problem that the traditional concave plate adjustment is difficult to realize, and improves the threshing efficiency.
Drawings
Fig. 1 is a three-dimensional view of a threshing device with adjustable threshing gap by combining double side plates.
Fig. 2 is a left side view of fig. 1.
FIG. 3 is a schematic view showing a single push-pull rod of the present invention in two radial extreme positions under disc drive.
Fig. 4 is a simplified schematic diagram of a rocker slider mechanism according to the present invention.
In the figure:
1-a transition plate; 2-a spring; 3-an outer panel; 4-a guide groove; 5-a transmission shaft; 6-bearing seats; 7-a disc; 8-a push-pull rod; 9-torque application point; 10-an inner side plate; 11-grid bars.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments, but the scope of the invention is not limited thereto.
As shown in fig. 1, the threshing device with adjustable threshing gap is formed by combining and clamping double side plates, wherein a grid concave plate comprises grid strips 11 and side plates, two ends of a plurality of grid strips 11 are respectively inserted into the side plates, and the grid strips 11 are in clearance fit with the side plates; the threshing gap adjusting devices are arranged on the outer sides of the grid-type concave plates, and the threshing gap adjusting devices are arranged on the grid strips 11, so that the grid strips 11 move radially and tangentially in the gaps. The side plates comprise an outer side plate 3 and an inner side plate 10, and the inner side plate 10 is fixed on the frame and can not move and rotate; the frame can be any bracket fixed on the harvester; the outer side plate 3 is movably arranged in the guide groove 4, and the guide groove 4 is fixed on the frame; the side plates of the prior structure are arc-shaped plates, the outer side plate 3 and the inner side plate 10 of the invention are arc-shaped plates, and the guide groove 4 is an arc-shaped guide groove. The threshing gap adjusting device comprises a tangential adjusting device and a radial adjusting device, and a plurality of grid bars 11 are provided with the radial adjusting devices for enabling the grid bars 11 to radially move in the gap; one end of the outer side plate 3 is connected with a tangential adjusting device, and the outer side plate 3 rotates along the tangential direction of the guide groove 4 to enable the grid bars 11 to move in the gap in the tangential direction.
As shown in fig. 1 and fig. 2, the outer side plate 3 and the inner side plate 10 are respectively and uniformly provided with a plurality of waist holes which are distributed in a radial direction, and the waist holes of the outer side plate 3 and the waist holes of the inner side plate 10 are in one-to-one correspondence; one end of any grid strip 11 is inserted into waist holes of the outer side plate 3 and the inner side plate 10, and the aperture of the waist holes is larger than the height of the cross section of the grid strip 11; any of the grating strips 11 moves radially and tangentially within the waist hole.
As shown in fig. 3 and 4, the radial adjustment device is a rocker slider mechanism, and the grid bars 11 are connected with the rocker slider mechanism, so that the grid bars 11 move radially in the gap. The rocker slider mechanism comprises a disc 7, a plurality of push-pull rods 8, a transmission shaft 5 and a rotating device; one end of any push-pull rod 8 is connected with one end of any grid strip 11, the other end of any push-pull rod 8 is connected with a disc 7, and the disc 7 is positioned at the center of a side plate; the center of the disc 7 is connected with the transmission shaft 5, the transmission shaft 5 is supported by the bearing seat 6, the rotating device transmits power to the disc 7 through the transmission shaft 5, the disc 7 transmits power to the push-pull rod 8 through rotation, and the radial movement of the grid bars 11 is realized through push-pull driving of the push-pull rod 8, so that the threshing gap is increased or reduced. The radial adjusting device can be simplified into a general rocker sliding block mechanism, as shown in fig. 4, the hinging point of the disc 7 and the push-pull rod 8 is connected with the center of the disc 7 to be simplified into a rocker AB, the grid strip 11 can be simplified into a sliding block C, the square hole in the side plate can be simplified into a sliding groove CD, the swing of the rocker drives the push-pull rod to realize radial movement of the grid strip, and the length of BC is longer than the distance between the connecting point B in the disc and the center of the square hole of the outer side plate, so that the movement requirement can be met. The maximum swing angle of the rocker slider mechanism is 22.5 degrees. The disc 7, the push-pull rods 8, the transmission shaft 5 and the rotating device are all arranged above the concave plate, so that the grid bars can move rapidly, the gap between the concave plates can be better regulated, and the threshing efficiency is improved.
The tangential adjusting device comprises a torque loading device and an elastic resetting device, wherein the elastic resetting device is arranged at one end of the outer side plate 3, and the torque loading device is arranged at the other end of the outer side plate 3 and used for applying torque of the outer side plate 3 moving in the guide groove 4. The elastic resetting device comprises a spring 2 and a transition plate 1, wherein the transition plate 1 is arranged on the frame, one end of the spring 2 is connected with the transition plate 1, and the other end of the spring 2 is connected with one end of an outer side plate 3; as shown in fig. 2, the other end of the outer side plate 3 is provided with a torque applying point 9, and torque is applied by a torque loading device to enable the outer side plate 3 to rotate in the guide groove 4; the elastic return means are used to return the outer plate 3 by means of the springs 2 when no torque is applied at the torque application point 9. The torque loading device can be a slider rocker mechanism, the slider can be realized through an air cylinder or an oil cylinder, one end of the slider is connected with one end of the outer side plate 3 through a connecting rod, the swinging center of the connecting rod is repeated with the circle center of the outer side plate 3, and the torque is applied to the outer side plate 3 through the conversion of the linear motion of the air cylinder or the oil cylinder into the swinging of the connecting rod. The torque loading device is a sliding block rocker mechanism, an elastic resetting device is not needed, and loading and resetting are completed only through the expansion and the contraction of an air cylinder or an oil cylinder.
The outer side plate 3 and the grid bars 11 are in a clamping state through the torque loading device at the beginning, the torque is applied through the torque loading device, the outer side plate 3 is reset to move under the action of the springs 2, and the outer side plate 3 and the grid bars 11 are in a loose state at the moment; the radial movement of the grid bars 11 is realized by pushing and pulling the push-pull rod 8, so that the threshing gap is increased or reduced, when the radial adjustment is finished, the torque is applied by the torque loading device, so that the outer side plate 3 compresses the spring 2, and at the moment, the outer side plate 3 and the grid bars 11 are in a clamping state, and the tangential clamping of the outer side plate 3 to the grid bars 11 is realized.
Fig. 3 is a schematic diagram of a single push-pull rod located at two radial limit positions under the drive of a disc, in the invention, when the disc 7 rotates clockwise by 22.5 degrees, the push-pull rod 8 drives the grating bars 11 to move from an upper radial limit position to a lower radial limit position, and when the disc 7 rotates anticlockwise by 22.5 degrees, the push-pull rod 8 drives the grating bars 11 to move from the lower radial limit position to the upper radial limit position, so that radial adjustment of the grating bars 11 is realized, and the radial displacement of the grating bars 11 can be adjusted according to actual conditions by the rotation angle, so that accurate adjustment is realized. When the actual combine harvester works normally, the grid bars 11 are in an upper limit position, are in a clamping state with the upper surface of the waist hole of the inner side plate 10 and are in a clamping state with the outer side plate 3; when the blockage is detected to be about to happen, the torque loading device is stopped to apply torque, the outer side plate 3 is reset under the action of the spring 2, so that the outer side plate 3 is separated from the grid strip 11, the grid strip 11 moves to the lower limit position under the action of the push-pull rod 8, the torque loading device applies torque at the moment, the outer side plate 3 and the grid strip 11 are in a clamping state, after the crisis relieved, the outer side plate 3 is separated from the grid strip 11, and then the grid strip 11 is pulled to return to the original position by the push-pull rod 8, so that the regulation of a concave plate gap is realized. Through direct regulation to the grid strip, simple structure, convenient operation realizes easily, effectively prevents that the combine from piling up the jam problem at the during operation threshing cylinder interior material.
A combine harvester comprises a threshing device with adjustable threshing gap and double side plates combined and clamped.
The examples are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present invention are within the scope of the present invention.
Claims (5)
1. The threshing device with adjustable threshing gap clamped by double side plates comprises grid strips (11) and side plates, and is characterized by further comprising a threshing gap adjusting device, wherein two ends of a plurality of grid strips (11) are respectively inserted into the side plates, the grid strips (11) are in clearance fit with the side plates, and the threshing gap adjusting device is arranged on the grid strips (11) to enable the grid strips (11) to move radially and tangentially in the gaps; the side plates comprise an outer side plate (3) and an inner side plate (10), and the inner side plate (10) is used for being fixed on the frame; the outer side plate (3) is movably arranged in the guide groove (4); the threshing gap adjusting device comprises a tangential adjusting device and a radial adjusting device, and a plurality of grid strips (11) are provided with radial adjusting devices for enabling the grid strips (11) to radially move in the gaps; the outer side plate (3) is connected with a tangential adjusting device, and the outer side plate (3) rotates tangentially along the guide groove (4) to enable the grid strips (11) to move tangentially in the gap; the outer side plate (3) and the inner side plate (10) are respectively and uniformly provided with a plurality of waist holes which are distributed in the radial direction, and the waist holes of the outer side plate (3) and the waist holes of the inner side plate (10) are in one-to-one correspondence; one end of any grid strip (11) is inserted into the waist holes of the outer side plate (3) and the inner side plate (10), and any grid strip (11) moves radially and tangentially in the waist holes; the tangential adjusting device is a torque loading device, and one end of the outer side plate (3) is provided with the torque loading device and is used for applying the torque of the outer side plate (3) moving in the guide groove (4); the radial adjusting device is a rocker slide block mechanism, and the grid bars (11) are connected with the rocker slide block mechanism so that the grid bars (11) radially move in the gaps; the rocker slider mechanism comprises a disc (7), a plurality of push-pull rods (8) and a rotating device; one end of any push-pull rod (8) is connected with one end of any grid strip (11), the other end of any push-pull rod (8) is connected with the edge of the disc (7), and the length of any push-pull rod (8) is longer than the distance from the grid strip (11) to the edge of the disc (7); the disc (7) is positioned at the center of the side plate; the rotating device is used for providing power for swinging the disc (7).
2. The threshing device with adjustable threshing gap by combining double side plates according to claim 1, wherein the maximum swing angle of the rocker-slide mechanism is 22.5 degrees.
3. The threshing device with adjustable threshing gap by combining double side plates according to claim 1, wherein the torque loading device is a sliding block swinging mechanism.
4. A threshing device with adjustable threshing gap clamped by a double-side plate combination according to claim 3, characterized by further comprising an elastic resetting device, wherein the other end of the outer side plate (3) is provided with the elastic resetting device for resetting the outer side plate (3) in the guide groove (4).
5. A combine harvester comprising a double sided board combination threshing device with adjustable clamping threshing gap as claimed in any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203681.4A CN109906778B (en) | 2019-03-18 | 2019-03-18 | Threshing device with adjustable threshing gap clamped by double-side-plate combination and combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203681.4A CN109906778B (en) | 2019-03-18 | 2019-03-18 | Threshing device with adjustable threshing gap clamped by double-side-plate combination and combine harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109906778A CN109906778A (en) | 2019-06-21 |
| CN109906778B true CN109906778B (en) | 2023-09-26 |
Family
ID=66965346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910203681.4A Active CN109906778B (en) | 2019-03-18 | 2019-03-18 | Threshing device with adjustable threshing gap clamped by double-side-plate combination and combine harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109906778B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111226610B (en) * | 2020-02-27 | 2023-10-10 | 江苏大学 | Threshing cylinder with adjustable threshing diameter, adjusting method and combine harvester |
| CN113875403B (en) * | 2021-11-03 | 2022-07-29 | 山东理工大学 | Improve and take off thing evenly distributed's notch board structure |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191418003A (en) * | 1914-07-30 | 1915-07-08 | Albert Edward Kerkham Wherry | Improvements in or in connection with Threshing Machines. |
| SU1739892A1 (en) * | 1988-10-17 | 1992-06-15 | Украинский научно-исследовательский институт сельскохозяйственного машиностроения | Threshing device |
| JP2000092971A (en) * | 1998-09-29 | 2000-04-04 | Kubota Corp | Threshing apparatus for combine harvester |
| CN106664990A (en) * | 2016-12-30 | 2017-05-17 | 江苏大学 | Adjusting device and adjusting method for cereal threshing cylinder concave clearance |
| CN107371641A (en) * | 2017-08-22 | 2017-11-24 | 湖南农业大学 | A kind of gap is adjustable concave grate and sheller unit |
| CN108496581A (en) * | 2018-01-19 | 2018-09-07 | 江苏大学 | A kind of multiple-roll combined harvester concave clearance automatically adjusts installed threshing separator and adjusting method |
| CN108651016A (en) * | 2018-06-13 | 2018-10-16 | 河北中农博远农业装备有限公司 | A kind of corn threshing notch board that can automatically adjust grid distance |
| CN208480315U (en) * | 2018-06-13 | 2019-02-12 | 河北中农博远农业装备有限公司 | A kind of corn threshing notch board that can automatically adjust grid distance |
| CN209824492U (en) * | 2019-03-18 | 2019-12-24 | 江苏大学 | Threshing device with adjustable double-side-plate combined clamping threshing gap and combine harvester |
-
2019
- 2019-03-18 CN CN201910203681.4A patent/CN109906778B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191418003A (en) * | 1914-07-30 | 1915-07-08 | Albert Edward Kerkham Wherry | Improvements in or in connection with Threshing Machines. |
| SU1739892A1 (en) * | 1988-10-17 | 1992-06-15 | Украинский научно-исследовательский институт сельскохозяйственного машиностроения | Threshing device |
| JP2000092971A (en) * | 1998-09-29 | 2000-04-04 | Kubota Corp | Threshing apparatus for combine harvester |
| CN106664990A (en) * | 2016-12-30 | 2017-05-17 | 江苏大学 | Adjusting device and adjusting method for cereal threshing cylinder concave clearance |
| CN107371641A (en) * | 2017-08-22 | 2017-11-24 | 湖南农业大学 | A kind of gap is adjustable concave grate and sheller unit |
| CN108496581A (en) * | 2018-01-19 | 2018-09-07 | 江苏大学 | A kind of multiple-roll combined harvester concave clearance automatically adjusts installed threshing separator and adjusting method |
| CN108651016A (en) * | 2018-06-13 | 2018-10-16 | 河北中农博远农业装备有限公司 | A kind of corn threshing notch board that can automatically adjust grid distance |
| CN208480315U (en) * | 2018-06-13 | 2019-02-12 | 河北中农博远农业装备有限公司 | A kind of corn threshing notch board that can automatically adjust grid distance |
| CN209824492U (en) * | 2019-03-18 | 2019-12-24 | 江苏大学 | Threshing device with adjustable double-side-plate combined clamping threshing gap and combine harvester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109906778A (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108142110B (en) | Threshing cylinder with adjustable threshing gap | |
| CN109906778B (en) | Threshing device with adjustable threshing gap clamped by double-side-plate combination and combine harvester | |
| CN209824492U (en) | Threshing device with adjustable double-side-plate combined clamping threshing gap and combine harvester | |
| US7337995B2 (en) | Kernel cracking assembly | |
| CN112189455B (en) | Self-locking hydraulic variable-diameter threshing cylinder and combine harvester | |
| CN201150193Y (en) | Grass guiding mechanism of threshing device of grain combined harvester | |
| CN109041823B (en) | Threshing cylinder with adjustable threshing nail tooth angle and combine harvester | |
| CN105835112A (en) | Automatic ginseng slicer | |
| CN110915429A (en) | Threshing cylinder with adjustable threshing gap | |
| CN109874511B (en) | Threshing device with adjustable bidirectional stay wire threshing gap and combine harvester | |
| CN209768260U (en) | Threshing concave plate sieve device | |
| CN102860571A (en) | Gorgon euryale seed husking machine and husking method | |
| CN100399874C (en) | Adjustable axial-flow type drum thresher | |
| CN109429740A (en) | Adjustable full sieve sheller unit | |
| CN109819784A (en) | Threshing concave plate screen device | |
| CN209390717U (en) | Adjustable full sieve sheller unit | |
| CN102726260A (en) | Seedling-stage film stripping machine | |
| CN111066466A (en) | Combine harvester with self-adaptive adjustment of working load and control method thereof | |
| CN219182141U (en) | Corn husker | |
| CN111194622A (en) | Threshing cylinder with adjustable threshing gap | |
| CN2891641Y (en) | Adjustable axial-flow rotary drum thrushing apparatus | |
| CN110073821A (en) | Cut de- combined type longitudinally axial flow threshing and separating installation | |
| CN201355942Y (en) | Threshing and feeding conversion device of bitangent stream drum-type combine harvester | |
| CN110521401B (en) | Pressure sensor automatic regulating and controlling shaking plate grain pushing and conveying device | |
| CN110249801B (en) | Anti-blocking threshing system with roller concave sieve plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |