CN-224218942-U - Knife roller and knife roller device

CN224218942UCN 224218942 UCN224218942 UCN 224218942UCN-224218942-U

Abstract

The utility model provides a knife roller and a knife roller device. The knife roll comprises a left casting knife roll and a right casting knife roll, wherein the left casting knife roll and the right casting knife roll are of an integrated casting structure of a movable knife holder and a knife roll body, the left casting knife roll and the right casting knife roll are respectively split type knife rolls, and the left casting knife roll and the right casting knife roll are coaxially connected to form a chopping roll. The casting feasibility is analyzed by combining a casting process, from the aspect of the casting process, the casting process is separated from an integral casting scheme which cannot be cast, and split type knife roll casting is changed into casting of the knife rolls on the left side and the right side, and the knife rolls on the left side and the right side are cast integrally by adopting knife holders and roll bodies, so that the problem that the precision of a welded movable knife holder cannot be ensured is solved, and the problem that the processing and manufacturing cost of the knife rolls is high is solved. The processing and manufacturing cost is reduced, the processing and assembling precision is ensured, and the defects caused by the manufacturing and processing technology are overcome.

Inventors

WANG YUNQIN
GAN GUOQING
ZHANG XICHENG
ZHANG YANCHENG
ZHANG LINGBIN
TIAN ZHEN
WANG YINGMING
LIU ZHIMING

Assignees

潍柴雷沃智慧农业科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250604

Claims (10)

1. The knife roll is characterized by comprising a left casting knife roll (1) and a right casting knife roll (2), wherein the left casting knife roll (1) and the right casting knife roll (2) are of an integrated casting structure of a movable knife holder (3) and a knife roll body (14), the left casting knife roll (1) and the right casting knife roll (2) are respectively split knife rolls, and the left casting knife roll (1) and the right casting knife roll (2) are coaxially connected to form a chopping roll (11).
2. A knife roll according to claim 1, characterized in that the left casting knife roll (1) and the right casting knife roll (2) are all of a full curved surface shape between the knife roll body (14) and the movable knife holder (3) and between the roll body self transition areas (4).
3. The knife roll according to claim 1, wherein a split knife roll middle mounting plane (5) is mounted on one side of the left casting knife roll (1) and one side of the right casting knife roll (2), threaded holes are formed in the split knife roll middle mounting plane (5), and the left casting knife roll (1) is connected with the right casting knife roll (2) through bolts.
4. The knife roll according to claim 1, wherein a plurality of movable knife holders (3) are uniformly cast on the left casting knife roll (1) and the right casting knife roll (2), the plurality of movable knife holders (3) are arranged along the circumferential direction of the left casting knife roll (1) or the circumferential direction of the right casting knife roll (2) at intervals, a knife roll movable knife holder movable knife mounting surface (8) is arranged on the movable knife holder (3), a movable knife mounting threaded hole is formed in the knife roll movable knife holder movable knife mounting surface (8), and a movable knife and a pressing plate (25) are arranged on the knife roll movable knife holder movable knife mounting surface (8) and are positioned between the knife roll movable knife mounting surface (8) and the pressing plate (25).
5. A knife roll according to any one of claims 1-4, characterized in that the other side of the left casting knife roll (1) and the other side of the right casting knife roll (2) are provided with balance block mounting holes (24), and the left casting knife roll (1) and the right casting knife roll (2) are formed by casting and shaping by casting moulds.
6. A knife roller device, characterized by comprising a knife roller according to any of the preceding claims 1-5, further comprising a shredding housing (26), the shredding roller (11) being rotatably mounted on a side wall of the shredding housing (26).
7. A knife roller device according to claim 6, characterized in that the whole machine power mechanism is connected with the shredding roller (11) through a through shaft type expansion coupling sleeve, a through shaft type hoop or a half shaft type bolt.
8. The knife roll device according to claim 7, wherein when the whole machine power mechanism is connected with the knife roll body (14) through a through shaft type expansion coupling sleeve, the whole machine power mechanism comprises a through shaft (12), an expansion coupling sleeve (13), a bearing seat (15), a right belt pulley (16), a first hoop (17), a left belt pulley (18), a spline hub (19) and a shaft end check ring (20), the knife roll (11) is mounted on the through shaft (12), the through shaft (12) is connected with a knife roll body (14) through the expansion coupling sleeve (13), the through shaft (12) is rotatably mounted on the side wall of the cutting shell (26) through the bearing seat (15), the right belt pulley (16) is connected with the through shaft (12) through a flat key, the first hoop (17) and the shaft end check ring (20) are mounted on the through shaft (12), the first hoop (17) is abutted with the right belt pulley (16), and the left belt pulley (18) is abutted with the spline hub (19) through the spline hub (19).
9. The knife roll device according to claim 7, wherein when the whole machine power mechanism is connected with the cutting roll (11) through a shaft type hoop, the whole machine power mechanism comprises a shaft (12), a bearing seat (15), a right side belt wheel (16), a first hoop (17), a left side belt wheel (18), a spline hub (19), a shaft end retainer ring (20) and a second hoop (21), the cutting roll (11) is installed on the shaft (12), the shaft (12) is connected with a knife roll body (14) through the second hoop (21), the shaft (12) is rotatably installed on the side wall of the cutting shell (26) through the bearing seat (15), the right side belt wheel (16) is connected with the shaft (12) through a flat key, the first hoop (17) and the shaft end retainer ring (20) are all installed on the shaft (12), the first hoop (17) is abutted with the right side belt wheel (16), and the left side belt wheel (18) is abutted with the spline hub (19) through the spline hub (19).
10. The knife roll device according to claim 7, wherein when the whole machine power mechanism is connected with the chopping roll (11) through a half-shaft bolt, the whole machine power mechanism comprises a bearing seat (15), a right side belt wheel (16), a first hoop (17), a left side belt wheel (18), a spline hub (19), a shaft end retainer ring (20), a left half shaft (22) and a right half shaft (23), the chopping roll (11) is positioned between the left half shaft (22) and the right half shaft (23), the left half shaft (22) and the right half shaft (23) are respectively connected with two sides of the chopping roll (11), the left half shaft (22) and the right half shaft (23) are respectively rotatably mounted on the side wall of the chopping shell (26) through the bearing seat (15), the right side belt wheel (16) is connected with the right half shaft (23) through a flat key, the first hoop (17) is mounted on the right half shaft (23), the shaft end (20) is mounted on the left half shaft (22), and the first hoop (17) is in contact with the spline hub (19) through the left side of the spline hub (19).

Description

Knife roller and knife roller device Technical Field The utility model relates to the technical field of stalk-ear combine-type shredding rolls, in particular to a knife roll and a knife roll device. Background The manufacturing and processing precision and the cost of the stalk-ear combine type chopping roller are high. The cutting knife roller is used as a key component for harvesting the stalks and the ears, and has the functions of cutting the stalks and throwing the stalks to the fan, and has the functions of cutting and throwing to a certain extent. The shape, position, size and accuracy of the shredding knife roller are ensured with higher accuracy, so that good shredding performance and certain throwing performance can be ensured. The prior structure comprises a cutter roller large-diameter steel pipe machining shell, a supporting amplitude disc and a movable cutter holder, the manufacturing process is a welding and machining process, the roller body, the supporting amplitude disc and the cutter holder are welded through a welding process, and then a cutter holder mounting surface and a threaded hole mounting hole are machined through a machining process, so that the process is relatively complex. The welding process has low precision, the welding of the knife roller with high precision cannot be finished, and the consistency of the knife roller is maintained through post-welding processing. Disclosure of utility model The utility model aims to solve the technical problem of providing a knife roller and a knife roller device aiming at the defects of the prior art. The technical scheme includes that the knife roll comprises a left casting knife roll and a right casting knife roll, wherein the left casting knife roll and the right casting knife roll are of an integral casting structure of a movable knife holder and a knife roll body, the left casting knife roll and the right casting knife roll are respectively split type knife rolls, and the left casting knife roll and the right casting knife roll are coaxially connected to form a chopping roll. The technical scheme has the beneficial effects that the casting feasibility is analyzed by combining the casting process, from the casting process, the casting process is changed from the casting process which is separated from the casting integrated scheme and is not cast into the casting of the split knife rolls, the casting is divided into the casting of the knife rolls at the left side and the right side, and the knife rolls at the left side and the right side are cast integrally by adopting the knife rest and the roll body, so that the problem that the precision of the welded movable knife rest cannot be ensured is solved, and the problem of high processing and manufacturing cost of the knife rolls is solved. The processing and manufacturing cost is reduced, the processing and assembling precision is ensured, and the defects caused by the manufacturing and processing technology are overcome. Further, the left casting knife roll, the knife roll body on the right casting knife roll and the movable knife seat as well as the transition area of the roll body are all in full-curved surface shapes. The full-curved surface shaping device has the beneficial effects that the full-curved surface shaping between the cutter roller body and the movable cutter seat and between the transition areas of the roller body is realized, and the welding stress concentration effect and the cutting stress concentration phenomenon in the cutter roller cutting operation process are avoided. The problem of the welding stress concentration that moves the blade holder because of welding process causes is solved, the problem of the welding stress concentration that the transitional coupling department of welding the butt welding department is unsmooth causes is solved, and the problem of the transitional coupling welding seam curved surface between moving blade holder and the roll body is unsmooth in the welded knife roll is solved. Further, a split type knife roll middle installation plane is installed on one side of the left side casting knife roll and one side of the right side casting knife roll, threaded holes are formed in the split type knife roll middle installation plane, and the left side casting knife roll is connected with the right side casting knife roll through bolts. The split type knife roll has the beneficial effects that the split type knife roll is arranged in the middle of the split type knife roll, so that one side of the left side casting knife roll is conveniently in butt joint with one side of the right side casting knife roll, and the left side casting knife roll and the right side casting knife roll are conveniently and detachably connected. The installation and maintenance of the left casting knife roll and the right casting knife roll are convenient. Further, a plurality of movable knife holders are uniformly cast on the left casting knife roll and the righ