A full-feed water-flow combing and brushing rice thresher

Abstract

The invention discloses a full-feed flow-type combing and brushing rice thresher, comprising a reel, a threshing device, and a rotary conveyor belt; a header is provided at the inlet end of the conveyor belt, and the threshing device comprises two groups of synchronous transmission belts arranged in the upper and lower parts in the chassis, a plurality of inserting and pressing parts mounted on the upper transmission belt, and a plurality of combing and brushing parts mounted on the lower transmission belt; the number of the inserting and pressing parts is equal to the number of the combing and brushing parts, the upper transmission belt rotates counterclockwise, the lower transmission belt rotates clockwise, and the rotation speeds of the two transmission belts are equal; the transmission belt speed is greater than the rotary conveyor belt speed; the combing and brushing parts are provided with a plurality of movable combing and brushing rods whose mutual spacing is adjusted by controlling the push rod transmission to move left and right; the inserting and pressing parts are provided with a plurality of rectangular movable inserting and pressing pieces arranged at equal intervals and supported by the elastic force of a compression spring; a grid plate is provided on the bottom surface of the chassis, a vibrating screen is provided near the outlet in the chassis, and an auxiliary threshing drum is provided between the vibrating screen and the grid plate. The invention has low energy consumption, high efficiency, and long service life.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery and relates to a full-feeding water-flowing combing-brush type rice thresher. Background Art

[0002] The rice combine harvesters in the prior art mainly include two types: full-feed combine harvesters and semi-feed combine harvesters. The drum threshing process of the full-feed combine harvester is as follows: after the rice ears in the rice field are pressed down toward the spiral propeller by the reed wheel, they are cut off by the cutter at the front end of the cutting table, and are uniformly pushed to the input slot entrance by the spiral propeller, and then transported to the threshing drum by the rotary conveyor belt. Driven by the roller, the rice ears rotate at high speed in the threshing drum, and the rice ears collide violently with the inner wall of the drum and the grid plate below to achieve the threshing effect of fully separating the ear stalk from the rice grains. Although this drum threshing method has a good threshing effect, the travel of the processed rice ears in the whole process is relatively long, and the rice ears are subject to great air resistance in each processing link, especially in the high-speed rotating link, which consumes a lot of energy and has a short service life of the corresponding parts.

[0003] The full-feed combine harvester using this technology can certainly thresh rice, but its main threshing drum adopts a high-speed rotating collision threshing structure. The drum is large in size, and the energy consumption caused by overcoming wind resistance during operation is large. Its essence during production is intermittent production according to the drum, and the production efficiency is not high enough. The high-speed rotating collision threshing structure equipment has a high failure rate, the service life is not long enough, and the use effect is not ideal enough. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a full-feed flow-type combing and brushing rice thresher with lower energy consumption, higher production efficiency and longer equipment service life.

[0005] The technical solution adopted by the present invention to achieve the above technical purpose is: a full-feed flow-type combing and brushing rice thresher, including a reel, a threshing device, and a rotating conveyor belt; the reel and the threshing device are connected by a rotating conveyor belt, a bucket-shaped cutting platform is provided at the inlet end of the rotating conveyor belt, and a cutter is provided at the tip of the cutting platform; the threshing device includes a chassis with an inlet and an outlet respectively provided on two opposite sides, two groups of synchronous transmission belts of the same shape and size distributed up and down in the chassis, a plurality of long inserting and pressing pieces equidistantly mounted on the upper group of synchronous transmission belts along the rotating path of the corresponding transmission belts, and a plurality of long combing and brushing pieces equidistantly mounted on the lower group of synchronous transmission belts along the rotating path of the corresponding belts; the number of the inserting and pressing pieces is equal to the number of the combing and brushing pieces. The numbers are equal, the upper group of synchronous transmission belts rotates counterclockwise, and the lower group of synchronous transmission belts rotates clockwise, and the rotation speeds of the two groups of synchronous transmission belts are equal; the linear speed of the synchronous transmission belt is greater than the linear speed of the rotating conveyor belt; the combing and brushing parts include two methyl blocks arranged sideways, each of the methyl blocks is slidably provided with a row of movable combing and brushing rods, and each row of the movable combing and brushing rods is provided with a control push rod, and the mutual spacing between the adjacent movable combing and brushing rods is changed by applying forces toward or away from the two control push rods respectively; the inserting and pressing parts are provided with a plurality of rectangular movable inserting and pressing sheets arranged at equal intervals and supported by the elastic force of compression springs; a grid plate is provided on the bottom of the chassis, a vibrating screen is provided near the outlet in the chassis, and an auxiliary threshing roller is provided between the vibrating screen and the grid plate.

[0006] Control arc blocks are provided on both sides of the entrance of the upper belt surface of the lower group of synchronous transmission belts; a plurality of square notch-shaped combing and brushing activity cavities are equidistantly provided on the outer side of the base block along the length direction, and a transparent square notch-shaped core groove is provided on the inner side, in which a core block is inserted, and a control push rod that is movably crimped with the corresponding control arc block is provided at one end of the core block; a flat rectangular opening corresponding to the number and position of the combing and brushing activity cavities is provided between the inner and outer sides of the base block, and a plurality of hanging blocks corresponding to the flat rectangular opening are provided on the corresponding side of the core block; a slider is provided at the bottom of the movable combing and brushing rod, a sliding groove matched with the slider is provided on the base block, a connecting rod is provided perpendicular to the bottom surface of the slider, and two guide rods perpendicular to the connecting rod are provided at the waist of the connecting rod, and guide holes corresponding to the guide rods are provided on the corresponding side walls of the combing and brushing activity cavity, and a reset spring is sleeved on the guide rod; the waist of the connecting rod is connected to the hanging block by a compensation spring.

[0007] When the combing brush on the lower group of synchronous transmission belts rotates to the top surface of the lower group of synchronous transmission belts as a whole, the arc convex surface of the corresponding control arc block is crimped with the control push rod, so that the control push rod slides along the contour of the arc convex surface to control the translation direction and displacement of the core block.

[0008] The insert and press part comprises a rectangular block; a plurality of rectangular open spring cavities are equidistantly provided in the block along the length direction of the block, a square constriction is provided at the top surface outlet of the spring cavity, and protrusions are provided on both sides of the bottom of the movable insert and press piece; a compression spring is arranged in the spring cavity; the top end of the compression spring is abutted against the bottom surface of the movable insert and press piece, and the bottom end of the compression spring is abutted against the support block arranged on the bottom surface of the block.

[0009] The auxiliary threshing drum comprises a transmission shaft, a shearing device arranged on the transmission shaft and a lever; the shearing device comprises two sets of scissor seats with the same internal structure as the above-mentioned combing brush member, and the corresponding positions of the adjacent movable combing brush rods are respectively provided with a shearing knife A and a shearing knife B.

[0010] The bottom surface of the rotary conveyor belt is supported by a flat bracket, and a plurality of long pressure frames are arranged at intervals along the conveying direction in the space surrounded by the belt surface of the rotary conveyor belt. A plurality of compression springs are arranged at intervals on each pressure frame and are elastically pressed against the belt surface of the rotary conveyor belt located below. A roller is arranged under the compression spring. The rice wheel presses the corresponding cluster of rice in the field against the cutter and cuts it off from the waist of the rice stalk. The cut rice body with stalk is transmitted from the bottom surface of the rotary conveyor belt and the plate surface of the bracket to the threshing device.

[0011] The beneficial effects of the present invention are as follows: the threshing device comprises a chassis with an inlet and an outlet respectively arranged on two opposite sides, two groups of synchronous transmission belts of the same shape and size arranged in the chassis and distributed up and down, a plurality of long inserting and pressing pieces equidistantly arranged on the upper group of synchronous transmission belts along the rotating path of the corresponding transmission belts, and a plurality of long combing and brushing pieces equidistantly arranged on the lower group of synchronous transmission belts along the rotating path of the corresponding belts; the number of the inserting and pressing pieces is equal to the number of the combing and brushing pieces, the upper group of synchronous transmission belts rotates counterclockwise, the lower group of synchronous transmission belts rotates clockwise, and the rotation speeds of the two groups of synchronous transmission belts are equal; the linear speed of the synchronous transmission belts is greater than the linear speed of the rotating conveyor belts; the combing and brushing pieces are provided with a plurality of movable combing and brushing rods whose mutual spacing is adjusted by controlling the push rod transmission to move left and right; the inserting and pressing pieces are provided with a plurality of rectangular movable inserting and pressing pieces equidistantly arranged and supported by the elastic force of compression springs; a grid plate is provided on the bottom surface of the chassis, a vibrating screen is provided near the outlet in the chassis, and an auxiliary threshing drum is provided between the vibrating screen and the grid plate.

[0012] Therefore, when working, the reel 1 pushes the corresponding cluster of rice in the field against the cutter 4 and cuts it from the waist of the rice stalk. The cut rice stalk is transmitted from the bottom surface of the rotary conveyor belt 2 and the plate surface of the bracket 9 to the threshing device 3. When the rice body with stalks passes through the moving trajectory of the active combing brush rod 16 and the active inserting and pressing sheet 15 at the adjacent positions of the two sets of synchronous transmission belts 11, since the linear speed of the synchronous transmission belt 11 is greater than the linear speed of the rotary conveyor belt 2, the rotary conveyor belt 2 elastically presses the tail of the rice stalk that is about to leave the rotary conveyor belt 2, and the arc block 18 is controlled to push the corresponding active combing brush rod 16 to clamp the combing brush, and the active inserting and pressing sheet 15 cooperates with the active combing brush rod 16 to press the rice to thresh the rice, and the auxiliary threshing drum 13 is used to process the short rice ears that have been missed by the traditional threshing method, and the shearing device 36 is used to cut the entangled rice stalks to prevent the machine from being stuck, and the rice grains that have been removed fall through the grid plate 39, and the rice stalks and ears are vibrated and output from the surface of the vibrating screen 12. Because it is a relatively short stroke and low-speed continuous advancement of the water combing and brushing type threshing, the wind resistance is small, the energy consumption is lower, the production efficiency is higher, the equipment service life is longer, and the use effect is more ideal. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 is a schematic diagram of the present invention;

[0015] Figure 2 It is a schematic diagram of the rotary conveyor belt part of the present invention;

[0016] Figure 3 It is a schematic diagram of the press frame part in the present invention;

[0017] Figure 4 It is a schematic diagram of the threshing device part in the present invention;

[0018] Figure 5 It is a schematic diagram of the synchronous transmission belt part of the present invention;

[0019] Figure 6 Schematic diagram of the brush part of the present invention;

[0020] Figure 7 It is an omitted schematic diagram of the combing brush part of the present invention;

[0021] Figure 8 It is a schematic diagram of the disassembly of the combing brush part of the present invention;

[0022] Fig. 9 is a schematic diagram of another aspect of the present invention;

[0023] Fig.10 1 is a schematic diagram of another aspect of the present invention;

[0024] Fig.11 It is a schematic diagram of the inserting and pressing part of the present invention;

[0025] Fig.12 It is a disassembled schematic diagram of the inserting and pressing part of the present invention;

[0026] Fig.13 It is a schematic diagram of the auxiliary threshing drum part in the present invention;

[0027] Fig.14 is a schematic diagram of the shearing device part of the present invention;

[0028] Fig.15 It is a schematic diagram of the control arc block part in the present invention.

[0029] The reference numerals in the accompanying drawings are described as follows: reel 1, rotary conveyor belt 2, threshing device 3, cutter 4, cutting table 5, pressure frame 6, roller 7, compression spring 8, bracket 9, ethyl block 10, synchronous transmission belt 11, vibrating screen 12, auxiliary threshing drum 13, methyl block 14, movable insert pressure plate 15, movable combing brush rod 16, control push rod 17, control arc block 18, core block 19, guide rod 20, connecting rod 21, slide groove 22, through port 23, compensation spring 24, slider 25, return spring 26, guide hole 27, core groove 28, combing brush active cavity 29, hanging block 30, protrusion 31, compression spring 32, compression spring cavity 33, bracket 34, shrinkage 35, shearing device 36, shear knife A 36A, shear knife B 36B, shift rod 37, scissors seat 38, grid plate 39 DETAILED DESCRIPTION

[0030] Embodiments of the present invention, such as Figures 1 to 15As shown, a full-feed flow-type combing and brushing rice thresher comprises a reel 1, a threshing device 3 and a rotary conveyor belt 2; the reel 1 and the threshing device 3 are connected by the rotary conveyor belt 2, a bucket-shaped cutting platform 5 is provided at the inlet end of the rotary conveyor belt 2, and a cutter 4 is provided at the tip of the cutting platform 5; the threshing device 3 comprises a chassis with an inlet and an outlet respectively provided on two opposite sides, two groups of synchronous transmission belts 11 of the same shape and size distributed up and down in the chassis, a plurality of long inserting and pressing pieces equidistantly arranged on the upper group of synchronous transmission belts 11 along the rotary path of the corresponding transmission belts, and a plurality of long combing and brushing pieces equidistantly arranged on the lower group of synchronous transmission belts 11 along the rotary path of the corresponding belts; the number of the inserting and pressing pieces is equal to the number of the combing and brushing pieces, and the upper group of synchronous transmission belts 11 rotates counterclockwise. The lower synchronous transmission belt 11 rotates clockwise, and the rotation speeds of the two synchronous transmission belts 11 are equal; the linear speed of the synchronous transmission belt 11 is greater than the linear speed of the rotary conveyor belt 2; the combing and brushing parts include two methyl blocks 14 arranged sideways, each of which is provided with a row of movable combing and brushing rods 16, and each row of movable combing and brushing rods 16 is provided with a control push rod 17, and the mutual spacing between the adjacent movable combing and brushing rods 16 is changed by applying forces toward or away from the two control push rods 17; the inserting and pressing parts are provided with a plurality of rectangular movable inserting and pressing pieces 15 arranged at equal intervals and supported by the elastic force of the compression spring 32; the bottom surface of the chassis is provided with a grid plate 39, and a vibrating screen 12 is provided near the outlet of the chassis, and an auxiliary threshing drum 13 is provided between the vibrating screen 12 and the grid plate 39. Specifically, the methyl block 14 is a flat rectangular block.

[0031] A control arc block 18 is provided on both sides of the entrance of the upper belt surface of the lower group synchronous transmission belt 11; a plurality of square notch-shaped combing and brushing activity cavities 29 are equidistantly provided on the outer side of the methyl block 14 along the length direction, and a transparent square notch-shaped core groove 28 is provided on the inner side, and a core block 19 is inserted into the core groove 28, and a control push rod 17 is provided at one end of the core block 19 to be pressed and connected to the corresponding control arc block 18; a flat rectangular opening 23 corresponding to the number and position of the combing and brushing activity cavities 29 is provided between the inner and outer sides of the methyl block 14, and the core block 19 is provided to the control push rod 17 to be pressed and connected to the corresponding control arc block 18. A plurality of hanging blocks 30 corresponding to the flat rectangular openings 23 are provided on the corresponding side; a slider 25 is provided at the bottom of the movable combing brush rod 16, a sliding groove 22 adapted to the slider 25 is provided on the methyl block 14, a connecting rod 21 is provided perpendicular to the bottom surface of the slider 25, two guide rods 20 perpendicular to the connecting rod 21 are provided at the waist of the connecting rod 21, and guide holes 27 corresponding to the guide rods 20 are opened on the corresponding side walls of the combing and brushing active cavity 29, and a reset spring 26 is sleeved on the guide rod 20; the waist of the connecting rod 21 is pulled and connected to the hanging block 30 through a compensation spring 24.

[0032] When the brush member on the lower synchronous transmission belt 11 rotates to the top surface of the lower synchronous transmission belt as a whole, the arc convex surface of the corresponding control arc block 18 is crimped with the control push rod 17 to make the control push rod 17 slide along the contour of the arc convex surface to control the translation direction and displacement of the core block 19.

[0033] The insert and pressure piece includes a rectangular ethyl block 10; a plurality of rectangular open compression spring cavities 33 are equidistantly provided in the ethyl block 10 along the length direction of the ethyl block 10, a square constriction 35 is provided at the top surface outlet of the compression spring cavity 33, and protrusions 31 are provided on both sides of the bottom of the movable insert and pressure piece 15; a compression spring 32 is arranged in the compression spring cavity 33; the top end of the compression spring 32 is abutted against the bottom surface of the movable insert and pressure piece 15, and the bottom end of the compression spring 32 is abutted against the support block 34 arranged on the bottom surface of the ethyl block 10.

[0034] The auxiliary threshing drum 13 includes a transmission shaft, a shearing device 36 and a lever 37 arranged on the transmission shaft; the shearing device 36 includes two sets of scissor seats 38 with the same internal structure as the above-mentioned combing brush member, and the corresponding positions of the adjacent movable combing brush rods 16 are respectively provided with a shearing knife A 36A and a shearing knife B 36B.

[0035] A flat bracket 9 is provided on the bottom surface of the rotary conveyor belt 2, and a plurality of long pressure frames 6 are provided at intervals along the conveying direction in the space surrounded by the belt surface of the rotary conveyor belt 2. A plurality of compression springs 8 are provided at intervals on each pressure frame 6, which are elastically pressed against the belt surface of the rotary conveyor belt 2 located below, and a roller 7 is provided under the compression spring 8. The rice wheel 1 presses the corresponding cluster of rice in the field against the cutter 4 and cuts off the rice stalk from the waist. The cut rice body with stalk is transmitted from the bottom surface of the rotary conveyor belt 2 and the plate surface of the bracket 9 to the threshing device 3.

[0036] The working principle of the present invention is as follows: during operation, the rice of the corresponding cluster in the field is pushed down by the reel 1 toward the cutting platform 5 and then cut off by the cutter 4 at the front end of the cutting platform 5. The cut rice is compressed and transmitted to the threshing device 3 from the bottom surface of the rotary conveyor belt 2 and the plate surface of the bracket 9. During the transmission, the rice is always elastically compressed by the compression spring 8 on the pressure frame 6. Since the linear speed of the synchronous transmission belt 11 is greater than the linear speed of the rotary conveyor belt 2, and since the rice stalks are all hollow rod structures, after being clamped and flattened, the friction between the rice stalks is very large, and the friction between the rice stalks, the rotary conveyor belt 2 and the bracket 9 is also very large. The combined force of these frictional forces is much greater than the pulling force of the movable combing brush rod 16 to clamp the rice ears and pull them forward, so that during the combing and brushing threshing process of the rice, the rice being combed and brushed and the rice that has not been combed and brushed can be closely connected, and no relative displacement will occur between each other, thereby maintaining the stability and continuity of the rice flow, so that the rice combing and brushing threshing process is carried out uninterruptedly like flowing water. During the rice transmission process, from the moment when the head of the rice leaves the plate surface of the bracket 9 and enters the threshing device 3 to the moment when the tail of the rice leaves the plate surface of the bracket 9, that is, when the rice passes through the moving trajectory of the active combing and brushing rod 16 and the active inserting and pressing sheet 15 at the adjacent position of the two sets of synchronous transmission belts 11, the active combing and brushing rod will successively perform three stages of combing and brushing threshing operations on the rice under the push of the control arc block 18, namely, clamping, combing and brushing, and loosening. Since the active combing and brushing rod 16 can only clamp the rice from the left, right and bottom, the active inserting and pressing sheet 15 clamps the top of the cut rice, so that the rice can be fully combed and brushed threshed. After the rice grains or short ears are separated from the ear stalks, they enter the auxiliary threshing drum 13 under the action of their own gravity, and the rice grains on the short ears are separated from the small branches and stalks. The rice grains fall through the gaps between the grid plates 39, and the rice stalks are vibrated and output from the screen surface of the vibrating screen 12.

[0037] When the combing and brushing parts on the lower group of synchronous transmission belts 11 are turned to the top surface of the belt as a whole, the corresponding control arc block 18 controls the push rod 17 to control the movement direction and movement trajectory of the core block 19 in three stages. Further explanation of the above three stages: In the first stage, the arc surface of the control arc block 18 is changed from thin to thick relative to the center position of the threshing device 3 box body. The control push rod 17 obtains the power to push the core block 19 to move inward during the forward movement. Its function is to allow the movable combing and brushing rod 16 to clamp the rice. When the movable combing and brushing rod 16 clamps the rice, due to the uneven clamping amount of rice between each group of movable combing and brushing rods 16, in order to clamp the rice with different clamping amounts at the same time, the compensation spring 24 plays a role at this time. The larger the clamping amount, the longer the compensation spring 24 is stretched, preparing for the next stage of combing and brushing the rice. In the second stage, the thickness of the arc surface of the arc block 18 relative to the center of the threshing device 3 box body remains unchanged, and the control push rod 17 does not get the power to push the core block 19 to move inward during the forward movement. Its function is to keep the active combing brush rod 16 in a clamping state for the cut rice. In this stage, the active combing brush rod 16 combs the cut rice. In the third stage, the thickness of the arc surface of the arc block 18 relative to the center of the threshing device 3 box body changes from thick to thin. Under the action of the reset spring 26, the core block 19 moves from inside to outside. Its function is to let the active combing brush rod 16 loosen the rice and prepare for the rice stalks to leave the threshing box in the next stage. At the same time, the various parts of the combing brush return to their original positions.

[0038] The auxiliary threshing drum 13 is used to process the short rice ears that have been missed by the traditional threshing method, and the shearing device 36 is used to cut the entangled rice stalks to prevent the machine from being stuck. The rice grains that have been shed fall through the grid plate 39, and the rice stalks are vibrated and output from the surface of the vibrating screen 12. Since the threshing is a water combing type with a relatively short stroke and low-speed continuous advancement, the wind resistance is small, the energy consumption is lower, the production efficiency is higher, the service life of the equipment is longer, and the use effect is more ideal.

Claims

1. A full-feed flow-type combing and brushing rice thresher, comprising a reel, a threshing device, and a rotary conveyor belt; the reel and the threshing device are connected by a rotary conveyor belt, a bucket-shaped cutting platform is provided at the inlet end of the rotary conveyor belt, and a cutter is provided at the tip of the cutting platform, characterized in that: The threshing device comprises a chassis with an inlet and an outlet respectively arranged on two opposite sides, two groups of synchronous transmission belts of the same shape and size arranged in the chassis and distributed up and down, a plurality of long inserting and pressing pieces mounted on the upper group of synchronous transmission belts at equal intervals along the rotation path of the corresponding transmission belts, and a plurality of long combing and brushing pieces mounted on the lower group of synchronous transmission belts at equal intervals along the rotation path of the corresponding belts; the number of the inserting and pressing pieces is equal to the number of the combing and brushing pieces, the upper group of synchronous transmission belts rotates counterclockwise, the lower group of synchronous transmission belts rotates clockwise, and the rotation speeds of the two groups of synchronous transmission belts are equal; The linear speed is greater than the linear speed of the rotary conveyor belt; the combing and brushing parts include two methyl blocks arranged in close contact with each other on the side, each of the methyl blocks is slidably provided with a row of movable combing and brushing rods, and each row of the movable combing and brushing rods is provided with a control push rod, and the mutual spacing between adjacent movable combing and brushing rods is changed by applying forces toward or away from the two control push rods respectively; the inserting and pressing parts are provided with a plurality of rectangular movable inserting and pressing pieces arranged at equal intervals and supported by the elastic force of compression springs; a grid plate is provided on the bottom of the chassis, a vibrating screen is provided near the outlet in the chassis, and an auxiliary threshing roller is provided between the vibrating screen and the grid plate.

2. A full-feed flow-type comb-brush rice thresher according to claim 1, characterized in that: Control arc blocks are provided on both sides of the entrance of the upper belt surface of the lower group of synchronous transmission belts; a plurality of square notch-shaped combing and brushing activity cavities are equidistantly provided on the outer side of the base block along the length direction, and a transparent square notch-shaped core groove is provided on the inner side, in which a core block is inserted, and a control push rod that is movably crimped with the corresponding control arc block is provided at one end of the core block; a flat rectangular opening corresponding to the number and position of the combing and brushing activity cavities is provided between the inner and outer sides of the base block, and a plurality of hanging blocks corresponding to the flat rectangular opening are provided on the corresponding side of the core block; a slider is provided at the bottom of the movable combing and brushing rod, a sliding groove matched with the slider is provided on the base block, a connecting rod is provided perpendicular to the bottom surface of the slider, and two guide rods perpendicular to the connecting rod are provided at the waist of the connecting rod, and guide holes corresponding to the guide rods are provided on the corresponding side walls of the combing and brushing activity cavity, and a reset spring is sleeved on the guide rod; the waist of the connecting rod is connected to the hanging block by a compensation spring.

3. A full-feed flow-type comb-brush rice thresher according to claim 2, characterized in that: When the combing brush on the lower group of synchronous transmission belts rotates to the top surface of the lower group of synchronous transmission belts as a whole, the arc convex surface of the corresponding control arc block is crimped with the control push rod, so that the control push rod slides along the contour of the arc convex surface to control the translation direction and displacement of the core block.

4. A full-feed flow-type comb-brush rice thresher according to claim 3, characterized in that: The insert and press part comprises a rectangular block; a plurality of rectangular open spring cavities are equidistantly provided in the block along the length direction of the block, a square constriction is provided at the top surface outlet of the spring cavity, and protrusions are provided on both sides of the bottom of the movable insert and press piece; a compression spring is arranged in the spring cavity; the top end of the compression spring is abutted against the bottom surface of the movable insert and press piece, and the bottom end of the compression spring is abutted against the support block arranged on the bottom surface of the block.

5. A full-feed flow-type comb-brush rice thresher according to claim 4, characterized in that: The auxiliary threshing drum comprises a transmission shaft, a shearing device arranged on the transmission shaft and a lever; the shearing device comprises two sets of scissor seats with the same internal structure as the above-mentioned combing brush member, and the corresponding positions of the adjacent movable combing brush rods are respectively provided with a shearing knife A and a shearing knife B.

6. A full-feed flow-type comb-brush rice thresher according to claim 5, characterized in that: The bottom surface of the rotary conveyor belt is supported by a flat bracket, and a plurality of long pressure frames are arranged at intervals along the conveying direction in the space surrounded by the belt surface of the rotary conveyor belt. A plurality of compression springs are arranged at intervals on each pressure frame and are elastically pressed against the belt surface of the rotary conveyor belt located below. A roller is arranged under the compression spring. The rice wheel presses the corresponding cluster of rice in the field against the cutter and cuts it off from the waist of the rice stalk. The cut rice body with stalk is transmitted from the bottom surface of the rotary conveyor belt and the plate surface of the bracket to the threshing device.

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