CN209897639U - Cutter of combine harvester - Google Patents

Abstract

The utility model discloses a cutter of combine harvester. The corn ear harvester is characterized in that the lower part of the cutter body is respectively connected with a cutter holder with a lower cutting blade through a hydraulic lifting device and a connecting rod, and a grain lifter connected with the bottom of the cutter body is arranged above the lower cutting blade. The utility model discloses change the rice harvester individual layer cutting into the bilayer cutting to the realization thoroughly clears away remaining straw promptly, does not influence original equipment structure again.

Description

Cutter of combine harvester

Technical Field

The utility model relates to a cutterbar, concretely relates to combine's cutterbar.

Background

The harvester is an integrated machine for harvesting crops, finishes harvesting and threshing at one time, concentrates grains into a storage bin, and then conveys the grains to a transport vehicle through a conveying belt; at present, rice is mainly planted in the south, and is a hilly land, and the granule that is fit for miniature harvester and reaps the rice is reaped from the pole, and at present in order to avoid thresher in the harvester to twine, block dead, can improve the straw cutting position for the higher straw is remained on the ground, and this not only increases the degree of difficulty of farmland rotary tillage, still is unfavorable for the bud of lower season crop, and the straw is fine cattle fodder and winter poultry cold-proof bedding grass, if dry in the sun and collect and play a big role to the aquaculture, can reduce the breed cost.

The prior art aims to reduce the power consumption of the thresher and thoroughly remove the residual wheat stubble; a double-layer cutter of a combine harvester is designed, and comprises an upper cutter fixed on a rack and a lower cutter fixed on the rack, wherein the lower cutter is correspondingly arranged below the upper cutter, the lower cutter comprises a lower cover, a lower cutting blade arranged in the lower cover, a seedling pulling assembly, a crank rocker mechanism and a lower auger blade, a seedling pulling claw is fixed on the crank rocker mechanism, the crank rocker mechanism drives the seedling pulling claw to perform reciprocating cable collecting motion, wheat stubbles are grabbed and guided, then the wheat stubbles are cut by the lower cutting blade, and finally the cut wheat stubbles are received by the lower auger blade under the pushing assistance of the seedling pulling claw and are collected to be output to form ridges. The double-layer cutter of the combine harvester can carry out secondary cutting on wheat stubble, and can thoroughly remove residual wheat stubble.

Disclosure of Invention

The utility model discloses an install two lifters and a cutting blade additional with the cutterbar below of current rice harvester, make the rice harvester repack into the harvester that has double-deck cutting to realize thoroughly cleaing away remaining straw promptly, do not influence original equipment structure again.

In order to achieve the above object, the technical solution of the present invention is: a cutter of a combine harvester comprises a cutter body, an upper cutting blade, a reel, a header auger, a pressure feed gap bridge and a crank arm, wherein the reel above an inlet position at the front part of the cutter body is connected with a single lug on the cutter body through the crank arm, the cutter body is internally provided with the upper cutting blade, the header auger and the pressure feed gap bridge, the upper cutting blade is fixedly arranged at the inlet at the front part of the cutter body and performs reciprocating cutting motion, the header auger is arranged behind the upper cutting blade and receives ears cut by the upper cutting blade and conveys the ears to one end of the pressure feed gap bridge, the cutter is characterized in that the lower part of the cutter body is respectively connected with a cutter seat with a lower cutting blade through a hydraulic lifting device and a connecting rod, a grain lifter connected with the bottom of the cutter body is arranged above the lower cutting blade, and the hydraulic lifting device is formed by a cylinder barrel and a cylinder cover, The hydraulic cylinder consists of a piston, a piston rod, a sealing device, a buffer device and an exhaust device; the distance between the lower cutting blade and the upper cutting blade can be adjusted according to the requirement of agricultural action, and the separation treatment of the corncob and non-corncob is realized.

The grain lifter consists of a fixed block, long grain lifting teeth, a central shaft, short grain lifting teeth, a sleeve and a limiting block, wherein the sleeve is sleeved on the central shaft, one end of the central shaft is connected with the fixed block, the other end of the central shaft is provided with external threads which are in threaded connection with the limiting block, three rows of the long grain lifting teeth and the short grain lifting teeth are spirally arranged on the sleeve, one ends of the long grain lifting teeth and the short grain lifting teeth are welded with the outer diameter of the sleeve, the sleeve can freely rotate on the central shaft, and the sleeve can rotate due to the resistance of no ear and grain stalks in the advancing process of the harvester.

The two ends of the lower cutting blade are respectively connected with the cutter seats, the cutter seats are respectively connected with the hydraulic lifting device and one end of the connecting rod, the other ends of the hydraulic lifting device and the connecting rod are connected with the bottom side of the cutter body, and the cutter seats can move in a manner of being attached to the ground, so that the position relation between the lower cutting blade and the ground is guaranteed, and the cutting length and quality of the root of the grain-free straw are guaranteed.

The grain lifter is arranged between the two hydraulic lifting devices and is two symmetrically arranged grain lifters, the long grain lifting teeth and the short grain lifting teeth are arc-shaped grain lifting teeth, the long grain lifting teeth and the short grain lifting teeth of each grain lifter are arranged along one direction, the left grain lifting teeth are arranged in an anticlockwise bending rotating mode, the right grain lifting teeth are arranged in a clockwise bending rotating mode, and in the advancing process of the harvester, the grain lifting teeth rotate inwards under the pushing of the non-ear grain stalks, so that the non-ear grain stalks are enabled to fall to the inner side direction at a certain angle and uniformity.

The pressure feeding gap bridge is a belt conveying gap bridge and conveys the cut ears into the thresher from the lower part.

The beneficial effects of the utility model are that the utility model discloses a lower cutting blade cuts off the straw after reaping, is equipped with the spiral on the lifter and sets up a plurality of rows of standing grain teeth, it has different crookedness and length to hold up the standing grain tooth to guarantee that the straw falls to a direction with certain angle and degree of consistency, the utility model discloses installed the lifter of two symmetries, left side is held up standing grain tooth counter-clockwise bending, and right side is held up standing grain tooth clockwise bending, makes the straw after the cutting inwards emptys, avoids the straw to block that the wheel gos forward, makes the straw discharge between the two-wheeled, does not pass through other extrudees, reduces the loss of straw in the at utmost, can bundle after drying.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic left side view of the structure of FIG. 1;

fig. 3 is a schematic front, top view of the grain lifter;

in the figure: the corn harvester comprises a cutter body 1, an upper cutter blade 2, a grain lifter 3, a fixing block 31, a long grain lifting tooth 32, a central shaft 33, a short grain lifting tooth 34, a sleeve 35, a limiting block 36, a lower cutter blade 4, a hydraulic lifting device 5, a connecting rod 6, a cutting table auger 7, a pressure conveying bridge 8, a grain poking wheel 9, a single ear 10, a crank arm 11, a cutter holder 12 and a grain ear walking path 13.

Detailed Description

The present invention and its embodiments will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-3, the utility model comprises a cutter body 1, an upper cutting blade 2, a reel 9, a cutting table auger 7, a pressure feed bridge 8 and a crank arm 11, wherein the reel 9 above the front inlet of the cutter body 1 is connected with a single lug 10 on the cutter body 1 through the crank arm 11, the cutter body 1 is internally provided with the upper cutting blade 2, the cutting table auger 7 and the pressure feed bridge 8, the upper cutting blade 2 is fixedly arranged at the front inlet of the cutter body 1 and performs reciprocating cutting movement, the cutting table auger 7 is arranged behind the upper cutting blade 2, receives the ears cut by the upper cutting blade 2 and conveys the ears to one end of the pressure feed bridge 8, the utility model is characterized in that the lower part of the cutter body 1 is respectively connected with a cutter holder 12 of the lower cutting blade 4 through a hydraulic lifting device 5 and a connecting rod 6, a grain lifter 3 connected with the bottom of the cutter body 1 is arranged above the lower cutting blade, the hydraulic lifting device 5 is a hydraulic cylinder consisting of a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device; the distance between the lower cutting blade 4 and the upper cutting blade 2 can be adjusted according to the requirement of agricultural action, and the separation treatment of the corncob straws and the corncob-free straws is realized.

The grain lifter 3 comprises a fixed block 31, long grain lifting teeth 32, a central shaft 33, short grain lifting teeth 34, a sleeve 35 and a limiting block 36, wherein the central shaft 33 is sleeved with the sleeve 35, one end of the central shaft is connected with the fixed block 31, the other end of the central shaft is provided with an external thread which is in threaded connection with the limiting block 36, three rows of the long grain lifting teeth 32 and the short grain lifting teeth 34 are spirally arranged on the sleeve 35, and the sleeve can freely rotate on the central shaft 33 and can rotate due to the resistance of the ear-free grain stalks in the advancing process of the harvester.

The two ends of the lower cutting blade 4 are respectively connected with the cutter holder 12, the cutter holder is respectively connected with the hydraulic lifting device 5 and one end of the connecting rod 6, the other ends of the hydraulic lifting device 5 and the connecting rod 6 are connected with the bottom side of the cutter body 1, and the cutter holder 12 can move in a manner of being attached to the ground, so that the position relation between the lower cutting blade 4 and the ground is ensured, and the cutting length and quality of the root of the straw without the ears are ensured.

The grain lifter 3 is arranged between the two hydraulic lifting devices 5 and is two symmetrically arranged grain lifters, the long grain lifting teeth 32 and the short grain lifting teeth 34 are arc-shaped grain lifting teeth, the left grain lifting teeth are in anticlockwise bending rotation, the right grain lifting teeth are in clockwise bending rotation, the long grain lifting teeth 32 are arranged above the short grain lifting teeth 34, and in the advancing process of the harvester, the grain lifting teeth 34 are pushed by the ear-free grain stalks to rotate inwards, so that the ear-free grain stalks are ensured to fall to the inner side direction at a certain angle and uniformity.

The pressure feed gap bridge 8 is a belt conveying gap bridge and consists of two rotating wheels and a belt, the cut ears are conveyed into the thresher from the lower part, and scrapers are uniformly distributed on the periphery of the belt, so that the ears can be quickly transferred into the thresher.

The working principle of the utility model is as follows:

the cutting table auger 7, the pressure feed gap bridge 8 and the reel 9 are all powered by the combine harvester to rotate at respective positions; before harvesting, firstly, the distance between an upper cutting blade 2 and a lower cutting blade 4 is adjusted through a hydraulic lifting device 5, when a cutter seat 12 is attached to the ground, the upper cutting blade 2 is just in the best position for cutting a small part of straws and ears, the harvester is started to move forwards, a reel 9 rotates to drive the ears into a cutter body 1, the upper cutting blade 2 cuts off the straws with the ears, the straws are conveyed into a thresher through a header auger 7 and a pressure feed bridge 8 along an ear walking path 13, the ears 7 are conveyed to the lower part of the pressure feed bridge 8 by the header auger 7, the ears are conveyed to the inlet of the high-end thresher through a belt pulley of the pressure feed bridge 8, a plurality of scrapers are uniformly distributed outside the belt of the pressure feed bridge 8 for better conveying the ears, the height of the scrapers is lower than the gap between the pressure feed bridge 8 and the bottom inner wall of the cutter body 1, so that the pressure feed bridge 8 can freely rotate in the cutter body 1, the ear-free straws are pulled inwards by the grain lifter 3, the lower cutting blade 4 cuts the ear-free straws while the ear-free straws are pulled, the ear-free straws are orderly and inwards fallen down and are orderly paved between the two wheels, and the ears can be bundled after being dried in the sun.

Claims (5)

1. A cutter of a combine harvester comprises a cutter body (1), an upper cutting blade (2), a reel (9), a cutting table auger (7), a pressure feed bridge (8) and a crank arm (11), wherein the reel (9) above the front inlet of the cutter body (1) is connected with a single lug (10) on the cutter body (1) through the crank arm (11), the upper cutting blade (2), the cutting table auger (7) and the pressure feed bridge (8) are arranged in the cutter body (1), the upper cutting blade (2) is fixedly arranged at the front inlet of the cutter body (1) and performs reciprocating cutting movement, the cutting table auger (7) is arranged behind the upper cutting blade (2) and receives ears cut by the upper cutting blade (2) and conveys the ears to one end of the pressure feed bridge (8), and the cutter is characterized in that the lower part of the cutter body (1) is respectively connected with the lower belt through a hydraulic lifting device (5) and a connecting rod (6) The cutter seat (12) of the cutting blade (4) is connected, and a grain lifter (3) connected with the bottom of the cutter body (1) is arranged above the lower cutting blade.

2. The cutter of the combine harvester according to claim 1, characterized in that the grain lifter (3) consists of a fixed block (31), long grain-lifting teeth (32), a central shaft (33), short grain-lifting teeth (34), a sleeve (35) and a limiting block (36), the central shaft (33) is sleeved with the sleeve (35), one end of the central shaft is connected with the fixed block (31), the other end of the central shaft is provided with external threads to be in threaded connection with the limiting block (36), three rows of long grain-lifting teeth (32) and short grain-lifting teeth (34) are spirally arranged on the sleeve (35), and the sleeve can freely rotate on the central shaft (33).

3. A cutter unit for a combine harvester according to claim 2, characterized in that the lower cutting blade (4) is connected at both ends thereof to a holder (12) which is connected to a hydraulic lifting device (5) and one end of a connecting rod (6), respectively, and the other ends of the hydraulic lifting device (5) and the connecting rod (6) are connected to the bottom side of the cutter body (1).

4. A cutter of a combine harvester according to claim 3, characterized in that the grain lifter (3) is arranged between the two hydraulic lifting devices (5) and is two symmetrically arranged grain lifters, the long grain lifting teeth (32) and the short grain lifting teeth (34) are arc-shaped grain lifting teeth, the left grain lifting teeth are in anticlockwise bending rotation, and the right grain lifting teeth are in clockwise bending rotation.

5. A cutter unit for a combine harvester according to any one of claims 1 to 4, characterised in that the feed bridge (8) is a belt feed bridge for feeding the cut ears from below into the thresher.

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