CN111788942A - Front-rear axial flow differential speed rotary threshing cylinder of harvester - Google Patents

Abstract

The invention discloses a front and rear axial flow differential rotary threshing cylinder of a harvester, which comprises an axial flow threshing cylinder upper cover 1, a universal joint transmission shaft 2, a power transmission seat 3, a belt pulley 4, a transmission belt 5, a post-threshing axial flow transmission wheel 6, an eccentric sleeve self-locking ball bearing 7, a shed grid tile plate sieve 8, a threshing shaft 9, a ball bearing 10, a bolt 11, a threshing main transmission wheel 12, a four-shaft threshing transmission box 13, a two-shaft right-angle transmission box 14, a post-threshing axial flow 15, a pre-threshing axial flow 16 and the like, and is characterized in that one threshing shaft 9 is provided with two threshing axial flow 16 and 15 which can rotate at different speeds in front and rear in the axial flow threshing cylinder of the harvester, the invention has the advantages that the two threshing axial flow 16 and 15 in front and rear can realize the same-direction differential rotary threshing and the reverse differential rotary threshing, and the two rotary threshing modes can separate stalks and seeds of crops more thoroughly, thereby reducing the loss of grains, benefiting the nation, the people and the like.

Description

Front-rear axial flow differential speed rotary threshing cylinder of harvester

The technical field is as follows:

the invention belongs to a threshing tool on agricultural machinery, in particular to a mechanical device which is arranged on a grain combine harvester and is used for separating crop straws from grains.

Technical background:

the existing cross-region operation crawler-type grain combine harvester is provided with a single-roller threshing mechanical device along an axial flow, and has the defects that when wet agricultural crops such as rice, wheat and the like are harvested and threshed in cross-region operation, crop straws and grains are not completely separated, the crop straws wrapped by the straws and the grains are discharged out of the axial-flow threshing roller, the grains in hand are caught, and the grains are thrown on the ground behind the harvester, so that people feel painful in mind.

The invention content is as follows:

the invention discloses a front-rear axial flow differential rotary threshing cylinder of a harvester, which is characterized in that two threshing axial flows capable of rotating at a differential speed are arranged in front of and behind one threshing shaft in the axial flow threshing cylinder.

The invention is composed of an axial flow threshing cylinder upper cover 1, a universal joint transmission shaft 2, a power transmission seat 3, a belt pulley 4, a transmission belt 5, a rear axial flow transmission wheel 6, an eccentric sleeve self-locking ball bearing 7, a shed grid tile plate sieve 8, a threshing shaft 9, a ball bearing 10, a bolt 11, a threshing main transmission wheel 12, a four-shaft threshing transmission box 13, a two-shaft right angle transmission box 14, a threshing rear axial flow 15, a threshing front axial flow 16 and the like, and is characterized in that two threshing axial flow 16 and 15 capable of rotating in a differential way are arranged in front of and behind one threshing shaft 9 in the axial flow threshing cylinder of a harvester, the threshing front axial flow 16 is directly driven by the four-shaft threshing transmission box 13 to rotate and thresh, the threshing rear axial flow 15 passes through the two-shaft right angle transmission box 14, the universal joint transmission shaft 2, the power transmission seat 3, the belt pulley 4 and the transmission belt, the power is transmitted mutually, so that the axial flow 15 rotates to thresh after threshing.

The invention has the greatest advantages that two axial flow threshing shafts 16 and 15 capable of realizing differential speed rotation threshing simultaneously, two axial flow threshing shafts 16 and 15 in front and back are arranged on one threshing shaft 9 in tandem, differential speed rotation threshing in the same direction can be realized, the two axial flow threshing shafts 16 and 15 in front and back can also realize reverse differential speed rotation threshing, and the two rotary threshing modes can ensure that crop straws and grains can be more thoroughly separated, thereby reducing the loss of grains, benefiting the country, benefiting the people and the like.

Description of the drawings:

FIG. 1 is a schematic diagram of an abstract of the present invention;

FIG. 2 is a schematic view of a tapered long-axis threshing cylinder according to the present invention;

FIG. 3 is a schematic view of a short axis threshing cylinder according to the present invention;

FIG. 4 is a schematic view of a long-axis trapezoidal threshing cylinder according to the present invention;

FIG. 5 is a schematic view of a through-shaft threshing cylinder according to the present invention;

FIG. 6 is a schematic view of the equidirectional differential rotary axial flow threshing cylinder of the present invention;

FIG. 7 is a schematic view of a counter-rotating differential axial flow threshing cylinder according to the present invention;

the specific implementation mode is as follows:

the invention is characterized in that two threshing axial flow 16 and 15 which can rotate in a differential way are arranged on a threshing shaft 9 in tandem, the threshing shaft 9 can adopt a long shaft to rotate for threshing, as shown in figures 1, 2, 4, 6 and 7, the threshing shaft 9 can also adopt a short shaft to rotate for threshing, as shown in figure 3, the threshing shaft 9 can also adopt a through shaft to rotate for threshing, as shown in figure 5, the axial flow 16 before threshing is directly driven by a four-shaft threshing transmission box 13 to rotate for threshing, the four-shaft threshing transmission box 13 can be replaced into a hollow threshing five-shaft transmission box 21 or a lengthened three-shaft threshing transmission box 17, as shown in figures 5 and 6, a two-shaft right-angle rotation box 14 can be further arranged, a power transmission seat 3 or a gear transmission box 18 is arranged, as shown in figures 6 and 7, a shaft is arranged in a hollow shaft 22 on the hollow five-shaft threshing transmission box 21, and can drive the threshing shaft 9 to rotate for threshing, as shown in fig. 5, four eccentric self-locking ball bearings 7 are arranged on a threshing long shaft, as shown in fig. 1, 2, 4, 6 and 7, two eccentric self-locking ball bearings 7 are arranged on a threshing through shaft, as shown in fig. 5, four ball bearings 10 are arranged on a threshing short shaft, as shown in fig. 3, the threshing long shaft, the short shaft and the through shaft are also called as threshing shafts 9, the threshing transmission box and the right-angle transmission box are internally provided with conical teeth and sector teeth, the threshing speed of the differential rotation threshing, namely the threshing speed of the axial flow 15 after threshing, is higher than that of the axial flow 16 before threshing, the threshing speed of the reverse rotation threshing, namely the two threshing axial flows 16 and 15, and one threshing left rotation and one threshing right rotation are simultaneously used for manufacturing the front and rear differential rotation threshing axial flows 16 and 15, and various steel materials of required specifications can be manufactured by proper material selection according to the existing axial flows on a harvester, when the four-axis threshing transmission case 13 is changed into a lengthened three-axis threshing transmission case 17, the threshing front axial flow 16 is directly driven by the lengthened three-axis threshing transmission case 17 to rotate and thresh, the threshing rear axial flow 15 is mutually transmitted by the power output wheel 19 of the three-axis threshing transmission case, the transmission belt 5, the rear axial flow power input front wheel 20, the power transmission seat 3, the universal joint transmission shaft 2, the belt pulley 4 and the rear axial flow transmission wheel 6 to make the threshing rear axial flow 15 rotate and thresh, as shown in figure 6, the power transmission seat 3 can be changed into a two-axis gear transmission case 18, the two-axis gear transmission case 18 can make the threshing rear axial flow 15 change the rotating and threshing direction, so that the two threshing front and rear axial flows 16 and 15 rotate and thresh leftwards, and one rotates and thresh rightwards, as shown in figure 7, the installation position of the fan-shaped teeth in the two-axis right-angle transmission case 14 is changed, and the, the threshing main driving wheel 12 is driven to rotate by an engine on the harvester through power transmission of a belt.

Claims (1)

1. A front-rear axial flow differential rotary threshing cylinder of a harvester comprises an axial flow threshing cylinder upper cover (1), a universal joint transmission shaft (2), a power transmission seat (3), a belt pulley (4), a transmission belt (5), a rear axial flow transmission wheel (6), an eccentric sleeve self-locking ball bearing (7), a shed grid tile plate sieve (8), a threshing shaft (9), a ball bearing (10), a bolt (11), a threshing main transmission wheel (12), a four-shaft threshing transmission box (13), a two-shaft right-angle transmission box (14), a threshing rear axial flow (15), a threshing front axial flow (16) and the like, it is characterized in that two threshing axial flow (16) heels (15) capable of rotating at different speeds are arranged on a threshing shaft (9) in the axial flow threshing cylinder of the harvester in tandem, the four-shaft threshing transmission case (13), can be respectively replaced into a hollow five-shaft threshing transmission case (21) or a lengthened three-shaft threshing transmission case (17).

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