CN213548415U

CN213548415U - Cutting blade for agricultural harvester capable of preventing straw from being wound

Info

Publication number: CN213548415U
Application number: CN202022542211.1U
Authority: CN
Inventors: 刘建成; 刘畅; 张崇宁; 宋振伟; 刘东昊
Original assignee: Qingyang Yaoshan Cattle Harvest Technology Development Co Ltd
Current assignee: Qingyang Yaoshan Cattle Harvest Technology Development Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-06-29
Anticipated expiration: 2030-11-06

Abstract

A cutting blade for an agricultural harvester for preventing straws from being wound relates to the technical field of agricultural mechanical equipment, the lower ends of two side edges of a main blade are respectively fixed with an auxiliary blade, the main blade is provided with a sawtooth, the auxiliary blade is provided with a sawtooth, the sawtooth and the sawtooth are oppositely arranged, the main blade is fixed between two clamping plates of a clamping plate by a bolt, the clamping plate is fixed with a supporting plate after passing through a through hole arranged on a cushioning bin, a sealing ring is clamped on the wall of the through hole arranged on the cushioning bin, the clamping plate is integrally formed with a limiting plate, a cushioning rubber pad is fixed on the limiting plate, the upper end of a spring is clamped in a groove arranged at the bottom of the supporting plate, the lower end of the spring is fixed with the bottom of an inner cavity of the cushioning bin, the bottom of the cushioning bin is fixed on a fixed plate, the fixed hole is arranged on the fixed plate, the design is reasonable, the structure is simple, the cutting capability of cutting off straws, preventing the straw from winding the blade.

Description

Cutting blade for agricultural harvester capable of preventing straw from being wound

Technical Field

The utility model relates to an agricultural mechanical equipment technical field, concretely relates to prevent winding cutting blade for agricultural harvester of straw.

Background

The harvester is a kind of integrated machine for harvesting crops, and can complete harvesting and threshing at one time and collect the grains into a storage bin. The harvester cuts off and harvests the straws of crops by a harvester blade which is arranged at the front end of the harvester. The situation that the slightly tough straw is not cut off and is wound on the cutting edge often appears in the cutting blade of the existing harvester during working, the harvesting efficiency is reduced, partial waste is caused, and improvement is needed urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a reasonable in design's prevent winding agricultural cutting blade for harvester of straw, simple structure has strengthened the cutting off ability to the straw through the sawtooth of different angles, prevents that the straw from twining the blade.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the cutter comprises a main blade and auxiliary blades, wherein the auxiliary blades are fixed at the lower ends of two side edges of the main blade; it still contains grip block, bolt and fixed plate, is equipped with a sawtooth on the main blade, is equipped with No. two sawteeth on the vice blade, and a sawtooth and No. two sawteeth opposite orientation set up, and the main blade utilizes the bolt fastening in the middle of the two splint of grip block, and the grip block below is fixed with the fixed plate, has seted up the fixed orifices on the fixed plate.

Furthermore, the clamping plate penetrates through a through hole formed in the cushioning bin and then is fixed with the supporting plate, the limiting plate is integrally formed on the clamping plate, the upper end of the spring is clamped in a groove formed in the bottom of the supporting plate, the lower end of the spring is fixed with the bottom of an inner cavity of the cushioning bin, and the bottom of the cushioning bin is fixed on the fixing plate.

Furthermore, a cushioning rubber mat is fixed on the limiting plate.

Furthermore, a sealing ring is clamped on the wall of the through hole formed in the cushioning bin.

After the structure is adopted, the beneficial effects of the utility model are that: the utility model provides a prevent winding agricultural cutting blade for harvester of straw, reasonable in design, simple structure have strengthened the cutting off ability to the straw through the sawtooth of different angles, prevent that the straw from winding the blade.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a sectional view taken along line a-a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 3.

Description of reference numerals:

the main blade 1, the auxiliary blade 2, the first sawtooth 3, the second sawtooth 4, the clamping plate 5, the bolt 6, the cushioning bin 7, the limiting plate 8, the supporting plate 9, the spring 10, the fixing plate 11, the fixing hole 12, the cushioning rubber mat 13 and the sealing ring 14.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment: the cutting tool comprises a main blade 1 and auxiliary blades 2, wherein the auxiliary blades 2 are welded and fixed at the lower ends of two side edges of the main blade 1; it still contains grip block 5, bolt 6 and fixed plate 11, be equipped with sawtooth 3 No. on the main blade 1, be equipped with sawtooth 4 No. two on the vice blade 2, sawtooth 3 and sawtooth 4 opposite directions set up No. two, main blade 1 utilizes bolt 6 to fix in the middle of the two splint of grip block 5, after grip block 5 passes the through-hole of seting up on bradyseism storehouse 7, with backup pad 9 welded fastening, the card is equipped with sealing washer 14 on the through-hole pore wall of seting up on the bradyseism storehouse 7, integrated into one piece has limiting plate 8 on the grip block 5, the riveting is fixed with bradyseism cushion 13 on the limiting plate 8, the upper end card of spring 10 is established in the recess of seting up in backup pad 9 bottom, the lower extreme of spring 10 and the inner chamber bottom welded fastening of bradyseism storehouse 7, bradyseism storehouse 7 bottom welded fastening has fixed plate 11, fixed hole 12.

The working principle of the specific embodiment is as follows: the cutting blade is installed on the harvester through the fixing hole 12, the harvester is pushed forward, the straw is cut along the first saw tooth 3 on the main blade 1, the slightly tough straw is scratched to the second saw tooth 4 on the auxiliary blade 2 to be further cut off under the condition that the first saw tooth 3 is not cut off, when the main blade 1 is abutted to a hard object, the main blade 1 drives the clamping plate 5 to press the supporting plate 9 backwards, and the spring 10 retracts.

After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:

1. the upper end of the spring 10 is clamped in a groove formed in the bottom of the supporting plate 9, and when the blade is impacted, part of impact force is absorbed, so that the damage degree of the blade is reduced;

2. a cushioning rubber pad 13 is riveted and fixed on the limiting plate 8, and when the spring 10 absorbs energy and rebounds, the impact of the limiting plate 8 on the cushioning bin 7 is relieved;

3. a sealing ring 14 is clamped between the clamping plate 5 and a through hole formed in the cushioning bin 7 to prevent dust from entering the cushioning bin 7;

4. the primary blade 1 is provided with the first saw teeth 3, the secondary blade 2 is provided with the second saw teeth 4, the cutting effect on the straws is enhanced, and the straws are prevented from being wound on the blades without being cut off.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A cutting blade for an agricultural harvester for preventing straws from being wound comprises a main blade (1) and auxiliary blades (2), wherein the auxiliary blades (2) are fixed at the lower ends of two side edges of the main blade (1); the method is characterized in that: it still contains grip block (5), bolt (6) and fixed plate (11), be equipped with sawtooth (3) No. one on main blade (1), be equipped with sawtooth (4) No. two on vice blade (2), sawtooth (3) and sawtooth (4) opposite direction set up No. two, main blade (1) utilizes bolt (6) to fix in the middle of the two splint of grip block (5), grip block (5) below is fixed with fixed plate (11), fixed orifices (12) have been seted up on fixed plate (11).

2. The cutting blade for an agricultural harvester for preventing straw tangling as set forth in claim 1, wherein: the damping device is characterized in that the clamping plate (5) penetrates through a through hole formed in the damping bin (7) and then is fixed with the supporting plate (9), a limiting plate (8) is integrally formed on the clamping plate (5), the upper end of the spring (10) is clamped in a groove formed in the bottom of the supporting plate (9), the lower end of the spring (10) is fixed to the bottom of an inner cavity of the damping bin (7), and the bottom of the damping bin (7) is fixed to the fixing plate (11).

3. The cutting blade for an agricultural harvester for preventing straw tangling as set forth in claim 2, wherein: and a shock absorption rubber cushion (13) is fixed on the limiting plate (8).

4. The cutting blade for an agricultural harvester for preventing straw tangling as set forth in claim 2, wherein: and a sealing ring (14) is clamped on the wall of the through hole formed in the cushioning bin (7).