CN111820015B - Low-damage re-threshing type threshing and screening system for broad bean harvester - Google Patents

Abstract

The invention relates to a low-damage re-threshing type threshing and screening system for a broad bean harvester, which comprises a threshing assembly, a screening assembly and a re-threshing mechanism, wherein the screening assembly is arranged below the threshing assembly, and the re-threshing mechanism is arranged on one side of the threshing assembly. Strike the friction through cylinder and the pinion rack of setting on the cylinder, the clout carries out the secondary and rethreads, and this rethread mechanism simple structure, and can reduce the breakage rate of broad bean granule.

Description

Low-damage re-threshing type threshing and screening system for broad bean harvester

Technical Field

The invention relates to the technical field of harvesters, in particular to a low-damage re-threshing type threshing and screening system for a broad bean harvester.

Background

The harvester is a machine for integrally harvesting crops. The harvesting and threshing are completed at one time, grains are collected into a granary, and then the grains are conveyed to a transport vehicle through a conveying belt. After the broad beans are harvested, the broad beans need to be threshed by a threshing mechanism, but the traditional threshing mechanism has the following problem that broad bean particles are easy to damage during threshing in the using process.

In the broad bean harvesting treatment process by using a large-scale harvester, broad beans can be subjected to a threshing step, but broad bean particles are not easy to thresh in bean pods at one time, and some silkworm grains are often remained in the bean pods after the threshing treatment, so that the threshed miscellaneous bean pods are required to be re-threshed again, and the threshing rate of the broad beans is improved.

Disclosure of Invention

The invention designs a low-damage rethreshing type threshing and screening system for a broad bean harvester, which has the advantages of simple structure, high conveying speed and low breakage rate.

In order to solve the technical problems, the invention adopts the following scheme:

the utility model provides a broad bean harvester is with low damaged rethreshing type screening system of threshing, includes threshing assembly, screening assembly and rethreshing mechanism, and the screening assembly sets up in the below of threshing assembly, and rethreshing mechanism sets up in one side of threshing assembly, its characterized in that threshing assembly includes the thresher body, be provided with concave mesh screen and threshing cylinder on the thresher body, threshing cylinder sets up the top at concave mesh screen, threshing cylinder is last to be provided with a plurality of teeth of beating, the top of beating the tooth is provided with fillet or spherical surface structure, cooperate on the concave mesh screen beat the tooth and be provided with a plurality of cylinder spares, rethreshing mechanism is including the auger device that is used for carrying the clout and be used for the rethreshing main part of rethreshing processing, the discharge end of auger device is connected the feed inlet of main part, the inside cylinder that is provided with of main part, the surface of cylinder is provided with helical blade and pinion rack, the spiral blades are arranged on one side close to the feeding hole, a roller shaft is arranged in the middle of the roller, one end of the roller shaft is connected with the harvester through a fixed disc, a transmission device is arranged on the other end of the roller shaft, a bearing matched with the roller shaft is arranged in the fixed disc, and the transmission device is connected with a threshing assembly of the harvester, so that the roller and the threshing assembly synchronously rotate to thresh.

Broad bean harvester with low damaged rethreshing type screening system that threshes, its characterized in that threshing cylinder's front end is provided with drive mechanism, be provided with the change gear box in the middle of the drive mechanism, drive mechanism is connected with the driving system of harvester, and the change gear box is in with the setting the central pin connection in the middle of the threshing cylinder, with the drive threshing cylinder rolls, be provided with the mount pad on the center pin, the edge of mount pad is provided with the joint groove, the fixed connecting rod that is provided with in the joint groove, beat the tooth and arrange in proper order in the outside of connecting rod, the adjacent interval of beating the tooth equals, the mount pad be provided with four groups with the connecting rod sets up 6 groups, the mount pad is circular mount pad.

Broad bean harvester with low damaged rethread type screening system that threshes, its characterized in that the both ends of concave mesh screen are provided with the connecting seat, be provided with the framework in the middle of the connecting seat, the framework includes a plurality of arc bracing pieces, the cylinder passes the arc bracing piece in order to incite somebody to action the arc bracing piece is fixed to be set up at the connecting seat go up.

The low-damage re-threshing type threshing and screening system for the broad bean harvester is characterized in that a threshing inlet is further arranged in front of the threshing machine body, and the threshing inlet is arranged below the transmission mechanism and connected with the threshing cylinder.

The low-damage re-threshing type threshing and screening system for the broad bean harvester is characterized in that a spiral blade is further arranged on the central shaft and is arranged at the feeding end of the threshing cylinder;

a cover body is arranged above the threshing cylinder.

Broad bean harvester thresh the screening system with low damaged rethreshing type, its characterized in that rethreshing mechanism is including the auger device that is used for carrying the clout and the rethreshing main part that is used for carrying out the rethreshing processing, the discharge end of auger device is connected the feed inlet of main part, its characterized in that the inside cylinder that is provided with of main part, the surface of cylinder is provided with helical blade and pinion rack, helical blade sets up and is being close to feed inlet one side, the centre of cylinder is provided with the roller shaft, and the one end of roller shaft is passed through the fixed disk and is connected with the harvester, is provided with transmission on the other end, be provided with the cooperation in the fixed disk the bearing of roller shaft, transmission is connected with the assembly of threshing of harvester, makes the cylinder threshes with the synchronous rotation of assembly of threshing.

Broad bean harvester thresh the filtration system with low damaged rethread type, its characterized in that the screw feeder device includes horizontal screw feeder and vertical screw feeder, horizontal screw feeder with vertical screw feeder passes through articulate, vertical screw feeder's top with the feed inlet is connected, horizontal screw feeder sets up in the residue groove of the screening assembly of harvester, be provided with curved casing in the main part, the below of casing is provided with the round hole sieve, be provided with a plurality of neatly arranged's round hole on the round hole sieve, the round hole sieve sets up the cylinder is provided with the below of pinion rack, the tail end of main part is provided with the baffle, the baffle sets up on the casing.

The low-damage re-threshing type threshing and screening system for the broad bean harvester is characterized in that a bearing is arranged on the baffle, the drum shaft is arranged in an inner ring of the bearing, a partition plate is further arranged below the shell and is arranged between the spiral blade and the toothed plate, so that broad bean particles falling from the circular hole sieve are prevented from falling into the surplus trough again.

Broad bean harvester with low damage rethread type screening system that threshes, its characterized in that the board tooth is provided with the multirow cylinder surface symmetric distribution, every row the pinion rack is along same one on cylinder length direction's the straight line, and each row of pinion rack is crisscross setting each other, two adjacent rows promptly latch on the pinion rack is not on same straight line, the apex angle department of pinion rack is provided with fillet structure to the protection broad bean keeps the granule complete in rethread processing procedure.

The low-damage re-threshing type threshing and screening system for the broad bean harvester is characterized in that the roller is provided with scrapers, the scrapers are arranged at the front end of the roller and are provided with at least two pieces, and the scrapers comprise rectangular scrapers and are oppositely arranged on the roller;

the fixed disc is also provided with a spring washer to reduce the rigid connection strength of the fixed disc and the harvester;

the drum shaft is provided with a bearing seat, the bearing seat is provided with a bearing, the drum shaft is inserted in the bearing, and the transmission device is arranged on the outer side of the bearing seat;

and a tension wheel is arranged in the transmission device.

The connecting piece of connecting the arc bracing piece in the concave mesh screen is the cylinder piece, and the top of beating the tooth is spherical surface structure, and protection broad bean particle surface that can be better is accomplished, can not damaged. Broad bean is after threshing for the first time through threshing assembly, and the rethread screening assembly sieves, and the miscellaneous surplus that needs to rethread is carried to rethread and is taken off the main part through the screw feeder device in, then strikes the friction through cylinder and the pinion rack of setting on the cylinder, and the clout carries out the secondary and rethreads, then falls into to screen once more in the screening assembly, and this rethread mechanism simple structure, rethread convenience, and can reduce the breakage rate of broad bean granule.

Drawings

FIG. 1: the threshing assembly of the invention has a schematic structure;

FIG. 2: the structure of the threshing cylinder of the invention is shown schematically;

FIG. 3: the structure of the concave mesh screen is shown schematically;

FIG. 4: a schematic structural diagram of a cleaning system of the harvester;

FIG. 5: the invention relates to one of the schematic diagrams of a remainder re-threshing transmission mechanism of a harvester;

FIG. 6: the present invention relates to a second schematic diagram of a remainder re-threshing transmission mechanism of a harvester.

In the figure: 1, a threshing assembly; 11 a thresher body; 12 a threshing cylinder; 121 a central axis; 122 a mounting seat; 123, a clamping groove; 124 connecting rods; 125, gear punching; 13 a concave mesh screen; 131 a connecting seat; 132 a frame body; 133 arc-shaped support rods; 134 a cylindrical member; 14 a threshing inlet; 15 a transmission mechanism; 151 change gear box; 152 a helical blade; 16 a cover body; 2, screening assembly; 3, a rethreshing mechanism; 31 a horizontal auger; 32 vertical screw conveyor; 33 rethreading the main body; 331 a housing; 332 feed port; 333 round hole sieve; 34 a baffle plate; 35 a drum shaft; 36 a roller; 361 a helical blade; 362 toothed plate; 363 scrapers; 364 a slide plate; 37 fixing the disc; 38 bearing seats; 39 a partition plate; 4. a transmission device.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings for making the technical solutions of the present invention easier to understand and grasp.

As shown in fig. 1 and 4, a low-damage re-threshing type threshing and screening system for a broad bean harvester comprises a threshing assembly 1, a screening assembly 2 and a re-threshing mechanism 3, wherein the screening assembly 2 is arranged below the threshing assembly 1, the re-threshing mechanism 3 is arranged on one side of the threshing assembly 1, the threshing assembly 1 comprises a threshing machine body 11, the threshing machine body 11 is provided with a concave mesh screen 13 and a threshing cylinder 12, the threshing cylinder 12 is arranged above the concave mesh screen 13, and a cover body 16 is arranged above the threshing cylinder 12. In the cleaning system of the broad bean harvester, the cleaning system comprises a threshing assembly 1 for threshing broad beans for the first time, a screening assembly 2 is arranged below the threshing assembly 1, and a fan for conveying sundries to the rear end is arranged at the head end of the screening assembly 2. The re-threshing mechanism 3 is arranged on one side of the threshing assembly 1 and is limited above the screening assembly 2.

Referring to fig. 2 to 3, the front end of the threshing cylinder 12 is provided with a transmission mechanism 15, a change gear box 151 is arranged in the middle of the transmission mechanism 15, the transmission mechanism is connected with a power system of the harvester, and the change gear box 151 is connected with a central shaft 121 in the middle of the threshing cylinder 12 to drive the threshing cylinder 12 to roll. The round mounting seat 122 is arranged on the central shaft 121, the clamping groove 123 is formed in the edge of the mounting seat 122, the connecting rod 124 is fixedly arranged in the clamping groove 123, the connecting rod 124 is provided with a plurality of gear teeth 125, the gear teeth 125 are sequentially arranged on the outer side of the connecting rod 124, and the distance between every two adjacent gear teeth 125 is equal. The top of the threshing teeth 125 is provided with a spherical structure to reduce the beating force of the threshing teeth on the broad bean particles and reduce the breakage rate of the broad beans during threshing. In order to improve the stability of the threshing cylinder 12, a plurality of sets of circular mounting seats 122 are arranged on the central shaft 121, a plurality of sets of connecting rods 124 are arranged on the mounting seats 122, and four sets of mounting seats 122 and 6 sets of connecting rods 124 are arranged in the embodiment.

The two ends of the concave screen 13 are provided with connecting seats 131, a frame 132 is arranged in the middle of the connecting seat 131, the frame 132 comprises a plurality of arc-shaped supporting rods 133, and the cylindrical piece 134 penetrates through each arc-shaped supporting rod 133 to be connected, so that the arc-shaped supporting rods 133 are fixedly arranged on the connecting seat 131.

The front of the threshing machine body 11 is also provided with a threshing inlet 14, and the threshing inlet 14 is arranged below the transmission mechanism 15 and is connected with the threshing cylinder 12. The central shaft 121 is further provided with a helical blade 152 for conveying the broad beans entering the threshing inlet 14 into the threshing assembly.

When the threshing device is installed and used, broad beans are conveyed through the feeding assembly and enter the threshing assembly from the threshing inlet 14, the threshing cylinder 12 continuously rotates under the action of the transmission mechanism 15, the threshing cylinder 12 polishes the broad beans through the threshing teeth 125 when rotating, and the broad beans are hit by the threshing teeth 125 in the threshing assembly and are matched with the concave mesh screen 13 to rub the broad beans, so that threshing is completed. The threshed broad beans enter the screening assembly through the sieve pores of the concave sieve 13. Because the connecting piece of connecting arc bracing piece 133 is cylinder 134 in the concave mesh screen 13, the protection broad bean granule surface that can be better is accomplished, can not damaged.

With reference to fig. 5 to 6, the remainder re-threshing transmission mechanism of the broad bean harvester, the re-threshing mechanism 3 of which comprises an auger device for conveying the remnants, comprises a horizontal auger 31 and a vertical auger 32, the horizontal auger 31 is connected with the vertical auger 32 through a joint, and the top of the vertical auger 32 is connected with the main body of the re-threshing mechanism 3. Wherein horizontal screw feeder 32 sets up in the clout groove of screening assembly 2, carries the clout after the screening to vertical screw feeder 32 in through horizontal screw feeder 32, and the rethread vertical screw feeder 32 carries the clout to in the rethread main part 33 of rethread vertical screw feeder 3.

The rethreshing main body 33 is provided with an arc-shaped shell 331, the shell 331 on one side is provided with a feeding hole 332, and the top of the vertical screw 32 is fixedly arranged on the feeding hole 332. The tail end of the shell 331 is provided with a baffle 34, the baffle 34 is provided with a bearing, and a drum shaft 35 is fixedly arranged in the inner ring of the bearing. The cylindrical roller 36 is sleeved on the portion of the roller shaft 35 inserted into the housing 331, the surface of the roller 36 is provided with helical blades 361 and toothed plates 362, the toothed plates 362 are provided with a plurality of rows, and the rows are symmetrically distributed on the surface of the roller 36. Each row of toothed plates 362 is on the same straight line along the length direction of the roller 36, and the toothed plates 362 are arranged in a mutually staggered manner, namely, the clamping teeth on the two adjacent rows of toothed plates 362 are not on the same straight line, so that the toothed plates 362 designed in such a way enable threshing to be more sufficient and complete, and are not easy to clamp.

The helical blade 361 is disposed at one end of the roller 36 near the feed port 332, and the scraper 363 is disposed at the other end, and the scraper 363 is disposed with two rectangular scrapers and is oppositely disposed on the roller 36. The bottom of the shell 331 is also provided with a round hole sieve 333, and the round hole sieve 333 is provided with a plurality of round holes which are arranged in order. A circular screen 333 is provided below the drum 36 where the toothed plates 362 are provided. The top angle of the toothed plate 362 is provided with a fillet structure, so that the integrity of the broad beans is kept in the re-threshing treatment process, and the re-threshing breakage rate is reduced.

The top end of the roller 36 is provided with a fixed disc 37, a bearing is arranged on the fixed disc 37, and the roller shaft 35 is inserted in the bearing. The rethreshing main body 33 is fixedly arranged on the harvester through the fixed disc 37, and the fixed disc 37 is further provided with a spring washer 371 so as to reduce the rigidity strength of the fixed disc 37 and the harvester.

The other end of the roller shaft 35 is provided with a bearing seat 38, the bearing seat 38 is provided with a bearing, and the roller shaft 35 is inserted in the bearing. The side surface of the bearing seat 38 is provided with a transmission device 4 which is connected with the central shaft of the threshing assembly 1 through chain transmission to realize synchronous rotation, and the transmission device 4 is provided with a tension wheel.

A partition 39 is further provided below the housing 331, and the partition 39 is provided between the spiral vane 361 and the toothed plate 362 to prevent the broad beans falling from the circular sieve 333 from falling into the surplus tank again.

When the device is used for threshing, the roller 36 rotates, the vertical auger 32 conveys broad beans to be threshed to the main body 33, then the broad beans are conveyed rightwards through the helical blades 361, the toothed plate 362 stirs the broad beans while rotating, meanwhile, the broad beans are repeatedly rubbed between the toothed plate 362 and the side wall of the shell 331 for threshing, then the broad beans are scraped out of the device by the scraping plate 363, fall down from the sliding plate 364 and enter the screening assembly 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The invention is described above with reference to the accompanying drawings, it is obvious that the implementation of the invention is not limited in the above manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims (8)

1. The utility model provides a broad bean harvester is with low damaged rethreshing type screening system that threshes, includes thresh assembly, screening assembly and rethreshing mechanism, and the screening assembly sets up in the below of threshing assembly, and rethreshing mechanism sets up in one side of threshing assembly, its characterized in that thresh the assembly including threshing machine body, be provided with concave mesh screen and threshing cylinder on the threshing machine body, threshing cylinder sets up the top at concave mesh screen, threshing cylinder includes the center pin, be provided with the mount pad on the center pin, the edge of mount pad is provided with the joint groove, the fixed connecting rod that is provided with in the joint groove, the outside of connecting rod is arranged in proper order and is set up and beat the tooth, and adjacent beat the tooth interval and equal, the top of beating the tooth is provided with fillet or spherical surface structure, cooperate on the concave mesh screen beat the tooth and be provided with a plurality of cylinder spare parts, rethreshing mechanism is including the auger device that is used for carrying the clout and being used for the rethreshing main part of rethreshing processing, the discharging end of the auger device is connected to the feeding hole of the re-threshing main body, a roller is arranged in the main body, spiral blades and toothed plates are arranged on the surface of the roller, a fillet structure is arranged at the vertex angle of each toothed plate, the toothed plates are arranged in multiple rows, the toothed plates are symmetrically distributed on the surface of the roller, each row of the toothed plates are arranged on the same straight line along the length direction of the roller, and the toothed plates of each row are mutually staggered, namely the clamping teeth on the two adjacent rows of the toothed plates are not arranged on the same straight line;

the spiral blades are arranged on one side close to the feeding hole, a roller shaft is arranged in the middle of the roller, one end of the roller shaft is connected with the harvester through a fixed disc, a transmission device is arranged on the other end of the roller shaft, a bearing matched with the roller shaft is arranged in the fixed disc, and the transmission device is connected with a threshing assembly of the harvester, so that the roller and the threshing assembly synchronously rotate to thresh.

2. The low-damage re-threshing type threshing and screening system for the broad bean harvester according to claim 1, characterized in that a transmission mechanism is arranged at the front end of the threshing cylinder, a direction-changing gear box is arranged in the middle of the transmission mechanism and connected with a power system of the harvester, the direction-changing gear box is connected with a central shaft arranged in the middle of the threshing cylinder to drive the threshing cylinder to roll, four groups of the mounting seats and 6 groups of the connecting rods are arranged, and the mounting seats are circular mounting seats.

3. The low-damage threshing and screening system for the broad bean harvester is characterized in that connecting seats are arranged at two ends of the concave mesh screen, a frame body is arranged in the middle of each connecting seat, each frame body comprises a plurality of arc-shaped supporting rods, and cylindrical pieces penetrate through the arc-shaped supporting rods so as to fixedly arrange the arc-shaped supporting rods on the connecting seats.

4. The low-damage threshing and screening system for the broad bean harvester according to claim 1, wherein a threshing inlet is further arranged in front of the threshing machine body, and the threshing inlet is arranged below the transmission mechanism and connected with the threshing cylinder.

5. The low-damage threshing and screening system for the broad bean harvester according to claim 1, wherein the central shaft is further provided with a helical blade arranged at the feed end of the threshing cylinder;

a cover body is arranged above the threshing cylinder.

6. The low-damage threshing and screening system for the broad bean harvester is characterized in that the auger device comprises a horizontal auger and a vertical auger, the horizontal auger is connected with the vertical auger through a joint, the top of the vertical auger is connected with the feed inlet, the horizontal auger is arranged in a residue tank of a screening assembly of the harvester, an arc-shaped shell is arranged on the main body, a circular hole screen is arranged below the shell, a plurality of regularly arranged circular holes are arranged on the circular hole screen, the circular hole screen is arranged below a toothed plate arranged on the roller, a baffle is arranged at the tail end of the main body, and the baffle is arranged on the shell.

7. The low-damage threshing and screening system for the broad bean harvester is characterized in that a bearing is arranged on the baffle, the drum shaft is arranged in an inner ring of the bearing, a partition plate is further arranged below the shell and is arranged between the spiral blade and the toothed plate, so that broad bean particles falling from the circular hole sieve are prevented from falling into a surplus trough again.

8. The low-damage threshing and screening system for the broad bean harvester is characterized in that the roller is provided with scrapers, the scrapers are arranged at the front end of the roller and are provided with at least two pieces, and the scrapers comprise rectangular scrapers and are oppositely arranged on the roller;

the fixed disc is also provided with a spring washer to reduce the rigid connection strength of the fixed disc and the harvester;

the drum shaft is provided with a bearing seat, the bearing seat is provided with a bearing, the drum shaft is inserted in the bearing, and the transmission device is arranged on the outer side of the bearing seat;

and a tension wheel is arranged in the transmission device.

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