CN216795764U - Front-mounted corn stalk cutting and smashing device - Google Patents
Front-mounted corn stalk cutting and smashing device Download PDFInfo
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- CN216795764U CN216795764U CN202123368109.5U CN202123368109U CN216795764U CN 216795764 U CN216795764 U CN 216795764U CN 202123368109 U CN202123368109 U CN 202123368109U CN 216795764 U CN216795764 U CN 216795764U
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Abstract
The utility model relates to a front-mounted corn stalk cutting and crushing device, wherein a group of the device is respectively arranged under a feeding chain of each group of ear picking units corresponding to a header; each group of devices comprises a chopper frame, a chopper rest, a chopper movable knife, a chopper fixed knife, a front rotary chopper rest and a chopper blade; the front end plate and the rear end plate of the chopper frame are fixedly connected with the header frame; the chopping knife rest consists of a central shaft and a plurality of movable knife mounting discs, and a plurality of movable knife mounting positions are uniformly distributed on the circumference of each movable knife mounting disc; two ends of the central shaft can be rotatably supported on the chopper frame, and a bevel gear is arranged at the rear extending end of the central shaft; the chopping fixed knife is fixed above the chopping knife rest through the fixed knife seat; a plurality of chopping moving blades are uniformly distributed and fixedly arranged on the moving blade mounting positions of the moving blade mounting discs; the front rotary cutting knife rest is coaxially fixed on the front extending end of the central shaft, a plurality of blade mounting positions are uniformly distributed on the circumference of the front rotary cutting knife rest, and a cutting blade is fixed at each blade mounting position. The device realizes the preposed concentrated installation of cutting and crushing the stalks.
Description
Technical Field
The utility model belongs to the field of self-propelled corn harvesters of agricultural machinery, relates to a device for cutting and crushing corn stalks, and particularly relates to a front corn stalk cutting and crushing device.
Background
The crushing and returning of the straws are realized by the combination of a front cutting device arranged below a corn harvesting header and a middle crushing device arranged at the position below the middle part of the harvester, the front cutting device is used for cutting off the corn stalks from the root, the middle crushing device is used for crushing the cut corn stalks and returning the crushed corn stalks to the field, and a corn stalk conveying mechanism is arranged between the front cutting device and the middle crushing device. The whole cutting and crushing structure of the corn stalks is dispersed, a transmission mechanism is arranged at each corresponding device position, so that a transmission chain is complex, in addition, the crushing length of the existing middle crushing device can not be adjusted, and the applicability is poor; the prior preposed cutting mechanism adopts a structure that a movable cutter and a fixed cutter which move transversely are matched, and has the problems of long remained root and no finish.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a front-mounted corn stalk cutting and crushing device which can greatly simplify a stalk treatment system of a corn harvester, can adjust the crushing length of stalks and can ensure that the stalks are short in roots and neat.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a reducing mechanism is cut off to forward type maize stem stalk which characterized in that: a group of the device is respectively arranged under the feeding chains of each group of the ear picking units corresponding to the cutting table;
each group of devices comprises a chopper frame, a chopping knife rest, a chopping movable knife, a chopping fixed knife, a front-rotating cutting knife rest and a cutting blade;
the chopper frame consists of a front end plate, a rear end plate and longitudinal connecting ribs for connecting the front end plate and the rear end plate, and the centers of the front end plate and the rear end plate are provided with aligned shaft holes; the chopper frame is fixedly connected with the header frame through a front end plate and a rear end plate;
the chopping knife rest is composed of a central shaft and a plurality of movable knife mounting discs which are fixed on the central shaft and are uniformly distributed along the axial direction and have the same structure, and a plurality of movable knife mounting positions are uniformly distributed on the movable knife mounting discs along the circumferential direction; the two ends of the central shaft extend out of front and rear shaft holes on the chopper frame and are rotatably supported on the chopper frame through bearing seats fixed on the front side of the front end plate and the rear side of the rear end plate, and a bevel gear is mounted at the rear extending end of the central shaft and meshed with a bevel gear on a transmission shaft transversely arranged on the cutting table;
the fixed chopping cutter is fixed on the fixed cutter seat along the front-back direction and is arranged above the chopping cutter seat, and two ends of the fixed cutter seat are fixedly connected with the front end plate and the rear end plate of the chopper frame; the chopping movable blades are uniformly fixed on the movable blade mounting positions of the movable blade mounting discs in a selectable mode along the circumferential direction, and the chopping movable blades are arranged along the tangential direction;
the front rotary cutting tool rest is coaxially fixed on the front extending end of the central shaft, a plurality of blade mounting positions are uniformly distributed on the front rotary cutting tool rest along the circumferential direction, and each blade mounting position is fixedly provided with a cutting blade arranged along the tangential direction.
Further: a plurality of mounting planes arranged along the tangential direction are uniformly distributed on the movable knife mounting disc along the circumferential direction, a movable knife mounting position is formed at each mounting plane, and a threaded hole for fixing the cutting movable knife is formed in each mounting plane.
Further: the front rotary cutting tool rest is of an integral welding structure and comprises a rear sheath, a front end plate connected with the front end of the rear sheath, a central sleeve connected with the front end plate through radial ribs and a plurality of L-shaped tool seats uniformly distributed and connected to the outer part of the central sleeve; a blade mounting position is formed on the outer side surface of the tangential edge of each L-shaped cutter holder, and a threaded hole for fixing a cutting blade is formed in the tangential edge; the rear end of the rear sheath is in contact with the front end plate of the chopper frame and sleeved outside the bearing seat positioned at the front part, and the central sleeve is in transmission connection with the front extending end of the central shaft through a key and enables the front rotary cutting tool rest to be tightly matched with the front end of the central shaft through a radial locking screw.
Further: the cutting blade adopts a trapezoidal knife structure with a narrow knife edge part of the knife handle part and a wide knife edge part, and the cutting edge of the trapezoidal knife adopts a sawtooth knife edge.
The utility model has the advantages and positive effects that:
1. the corn stalk cutting and crushing device is characterized in that a cutting device and a crushing device are arranged below the header in a centralized manner, and power is input through a pair of meshed bevel gears.
2. The number of the movable chopping blades can be increased or decreased according to the requirement, so that the adjustment of the chopping length of the corn stalks can be realized, and the better applicability is achieved.
3. The utility model drives the cutting blade to cut the position of the stem close to the root part through the rotary front-rotating cutting knife rest, thereby achieving the technical effects of short remained root and tidy remained root. The method specifically comprises the following steps: the length of the root of the chopping device which is cut off in work is designed according to the position of the header in the work state, and the header can be lifted and increased to reserve the length of the root under special conditions. The stalk is cut off to this mode of cutting off in the side has comparatively outstanding cutting point, and quick and orderly stalk that cuts off under trapezoidal sword high-speed rotation keeps getting orderly root.
Drawings
FIG. 1 is an overall three-dimensional external schematic view of the present invention;
FIG. 2 is an overall cross-sectional view of the present invention;
FIG. 3 is a side view of the present invention in an installed position on the header;
FIG. 4 is an elevational view of the utility model in an installed position on the header;
FIG. 5 is a perspective view of the chopping block of the present invention;
fig. 6 is a perspective view of a forward cutting blade holder and cutting blade of the present invention.
Detailed Description
The structure of the present invention will be further described by way of examples with reference to the accompanying drawings. It is to be understood that this embodiment is illustrative and not restrictive.
A front-mounted corn stalk cutting and crushing device is shown in figures 1-6, and the utility model point is as follows: the device needs to be matched according to the number of the snapping units on the header, and particularly, a group of the device is respectively arranged under the feeding chain of each group of snapping units 100 of the header.
Each set of the device comprises a main shredder frame 4, a shredding knife rest 2, a shredding movable knife 3, a shredding fixed knife 5, a front rotating cutting knife rest 7 and a cutting blade 8.
The chopper frame can adopt an integrated welding structure, and is mainly composed of a front end plate 4.3, a rear end plate 4.1 and longitudinal connecting ribs 4.2 for connecting the front end plate and the rear end plate, wherein the centers of the front end plate and the rear end plate are provided with aligned shaft holes. The chopper frame is fixedly connected with the header frame through the front end plate and the rear end plate. Specifically, the left side and the right side of the front end plate are connected with L-shaped connecting plates through bolts, and the L-shaped connecting plates on the two sides are connected with two vertical plates welded at corresponding positions of the lower end of the header frame through screws. The rear end plate is connected with the front side of a transverse vertical plate fixed at the lower end of the header frame through screws, and the rear side of the transverse vertical plate is used for installing a transverse transmission shaft combination (formed by connecting a plurality of sections of shafts through a coupler and is an existing transmission structure on the header) of the header through a bearing seat.
The chopping knife rest is composed of a central shaft 2.1 and a plurality of movable knife mounting discs 2.2 which are fixed on the central shaft and are uniformly distributed along the axial direction and have the same structure, a plurality of mounting planes 2.2.1 arranged along the tangential direction are uniformly distributed on the movable knife mounting discs along the circumferential direction, a movable knife mounting position is formed at each mounting plane, and a threaded hole 2.2.2 for fixing the chopping movable knife is arranged on each mounting plane, so that a plurality of movable knife mounting positions are uniformly distributed on the movable knife mounting discs along the circumferential direction. The two ends of the central shaft extend out of the front and rear shaft holes on the chopper frame and are rotatably supported on the chopper frame through a front bearing seat 10 fixed on the front side of the front end plate and a rear bearing seat 9 fixed on the rear side of the rear end plate respectively. The bevel gear 1 is arranged at the rear extending end of the central shaft and meshed with a bevel gear on a transmission shaft (the transverse transmission shaft combination) transversely arranged on the header, so that power is transmitted to the front corn stalk cutting and crushing device.
The fixed chopping knife is fixed on the fixed knife seat through screws in the front-back direction and is arranged above the chopping knife rest 6, and two ends of the fixed knife seat are fixedly connected with the front end plate and the rear end plate of the chopper frame through screws. The chopping moving blades are a plurality of chopping moving blades, the chopping moving blades are uniformly distributed and fixed on the moving blade mounting positions of the moving blade mounting discs in a selectable mode along the circumferential direction, and the chopping moving blades are arranged along the tangential direction. The above alternative means are: the cutting movable knife can be arranged at each movable knife mounting position on the movable knife mounting disc, or the cutting movable knife can be arranged at one or two or even more movable knife mounting positions, and the cutting movable knife needs to be adjusted and mounted according to the specific cutting length.
The front rotary cutting tool rest is coaxially fixed on the front extending end of the central shaft, a plurality of blade mounting positions are uniformly distributed on the front rotary cutting tool rest along the circumferential direction, and each blade mounting position is fixedly provided with a cutting blade arranged along the tangential direction. The cutting blade preferably adopts a trapezoidal knife structure with a narrow knife edge part and a wide knife edge part of the knife handle, the cutting edge of the trapezoidal knife is designed into a sawtooth cutting edge, and the effect of rapid cutting is still achieved after the cutting edge is worn and matched with the fixed knife.
The front rotary cutting knife rest preferably adopts the following structural form:
the front rotary cutting tool rest is of an integral welding structure and comprises a rear sheath 7.1, a front end plate 7.2 connected with the front end of the rear sheath, a central sleeve 7.3 connected with the front end plate through radial ribs and a plurality of L-shaped tool seats 7.4 uniformly distributed and connected to the outer portion of the central sleeve. And a blade mounting position is formed on the outer side surface of the tangential edge of each L-shaped cutter holder, and a threaded hole for fixing a cutting blade is formed in the tangential edge. The rear end of the rear sheath is in contact with the front end plate of the chopper frame and sleeved outside the bearing seat positioned at the front part. Therefore, the rear sheath plays a role of an outer protection cover for the bearing seat at the end, and sundries generated by cutting off the stalks can be prevented from falling into the bearing. The central sleeve is in transmission connection with the front extending end of the central shaft through a key, and the front rotary cutting tool rest is tightly matched with the front end of the central shaft through a radial locking screw.
This forward type maize stalk cuts off reducing mechanism theory of operation:
when the corn harvesting operation is carried out, the corn stalks are fed into the ear picking units at corresponding positions through the feeding port at the front end of the header, and the positions of the corn stalks close to the roots are cut off by the rotation of the cutting blades at the lower part while the ears are picked at the upper part; the corn stalks which are plucked ears and cut off roots are successively conveyed through a header feeding chain, in the backward conveying process, the stalks are driven to fall down through the rotation of a stalk pulling roller and fall to the upper part of a chopping knife rest, the stalks are chopped through the matching of a chopping movable knife and a chopping fixed knife, the stalks are chopped, the chopped stalks directly fall to the ground, and the chopping and returning of the stalks are realized.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the scope of the appended claims, and therefore the scope of the utility model is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (4)
1. The utility model provides a reducing mechanism is cut off to forward type maize stem stalk which characterized in that: a group of the device is respectively arranged under the feeding chains of each group of the ear picking units corresponding to the cutting table;
each group of devices comprises a chopper frame, a chopping knife rest, a chopping movable knife, a chopping fixed knife, a front-rotating cutting knife rest and a cutting blade;
the chopper frame consists of a front end plate, a rear end plate and longitudinal connecting ribs for connecting the front end plate and the rear end plate, and the centers of the front end plate and the rear end plate are provided with aligned shaft holes; the chopper frame is fixedly connected with the header frame through a front end plate and a rear end plate;
the chopping knife rest is composed of a central shaft and a plurality of movable knife mounting discs which are fixed on the central shaft and are uniformly distributed along the axial direction and have the same structure, and a plurality of movable knife mounting positions are uniformly distributed on the movable knife mounting discs along the circumferential direction; the two ends of the central shaft extend out of front and rear shaft holes on the chopper frame and are rotatably supported on the chopper frame through bearing seats fixed on the front side of the front end plate and the rear side of the rear end plate, and a bevel gear is mounted at the rear extending end of the central shaft and meshed with a bevel gear on a transmission shaft transversely arranged on the cutting table;
the fixed chopping cutter is fixed on the fixed cutter seat along the front-back direction and is arranged above the chopping cutter seat, and two ends of the fixed cutter seat are fixedly connected with the front end plate and the rear end plate of the chopper frame; the chopping movable blades are uniformly fixed on the movable blade mounting positions of the movable blade mounting discs in a selectable mode along the circumferential direction, and the chopping movable blades are arranged along the tangential direction; the front rotary cutting tool rest is coaxially fixed on the front extending end of the central shaft, a plurality of blade mounting positions are uniformly distributed on the front rotary cutting tool rest along the circumferential direction, and each blade mounting position is fixedly provided with a cutting blade arranged along the tangential direction.
2. The front-mounted corn stalk cutting and crushing device according to claim 1, characterized in that: a plurality of mounting planes arranged along the tangential direction are uniformly distributed on the movable knife mounting disc along the circumferential direction, a movable knife mounting position is formed at each mounting plane, and a threaded hole for fixing the cutting movable knife is formed in each mounting plane.
3. The front-mounted corn stalk cutting and crushing device according to claim 1, characterized in that: the front rotary cutting tool rest is of an integral welding structure and comprises a rear sheath, a front end plate connected with the front end of the rear sheath, a central sleeve connected with the front end plate through radial ribs and a plurality of L-shaped tool seats uniformly distributed and connected to the outer part of the central sleeve; a blade mounting position is formed on the outer side surface of the tangential edge of each L-shaped cutter holder, and a threaded hole for fixing a cutting blade is formed in the tangential edge; the rear end of the rear sheath is in contact with the front end plate of the chopper frame and sleeved outside the bearing seat positioned at the front part, and the central sleeve is in transmission connection with the front extending end of the central shaft through a key and enables the front rotary cutting tool rest to be tightly matched with the front end of the central shaft through a radial locking screw.
4. The front-mounted corn stalk cutting and crushing device according to claim 1, characterized in that: the cutting blade adopts a trapezoidal knife structure with a narrow knife edge part of the knife handle part and a wide knife edge part, and the cutting edge of the trapezoidal knife adopts a sawtooth knife edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123368109.5U CN216795764U (en) | 2021-12-29 | 2021-12-29 | Front-mounted corn stalk cutting and smashing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123368109.5U CN216795764U (en) | 2021-12-29 | 2021-12-29 | Front-mounted corn stalk cutting and smashing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216795764U true CN216795764U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123368109.5U Active CN216795764U (en) | 2021-12-29 | 2021-12-29 | Front-mounted corn stalk cutting and smashing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216795764U (en) |
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2021
- 2021-12-29 CN CN202123368109.5U patent/CN216795764U/en active Active
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