CN203851515U - Concave clearance adjustable flexible-tooth threshing system - Google Patents

Abstract

A flexible tooth threshing system with adjustable threshing gap, comprising a threshing cylinder and a concave plate screen installed on a frame. The threshing drum is located in the threshing chamber, and includes two gap adjustment end plates fixed on the drum shaft, and a plurality of threshing tooth fixing rods with flexible threshing nail teeth are arranged between the two gap adjustment end plates; the drum shaft located at the input end of the threshing drum There are feeding augers distributed in a spiral shape on the top, one feeding inlet is set on the drum cover corresponding to the feeding auger, and a plurality of grass discharge boards are arranged on the drum shaft at the output end of the threshing drum, and a straw outlet Set on the roller cover corresponding to the grass ejector. With the utility model, the action time of crop siliques on the flexible threshing nail teeth is prolonged, the instantaneous impact force is reduced, and the broken rate of rapeseed can be reduced. The threshing requirements of materials due to changes in physical properties improve the adaptability to threshing materials.

Description

Flexible tooth threshing system with adjustable threshing gap

technical field

The utility model relates to a threshing system of a threshing machine, in particular to a flexible tooth threshing system with adjustable threshing gap.

Background technique

Rapeseed is the main oilseed crop in our country. Vigorously developing the rapeseed industry not only needs to expand the planting area and increase the total output of rapeseed, but the traditional threshing of rapeseed is done manually or semi-mechanized. The threshing teeth have a strong impact on rape pods, and the seeds are severely broken. At the same time, because the threshing gap remains unchanged, they cannot adapt to the threshing requirements of the material to be threshed due to changes in physical properties.

Contents of the invention

In order to solve the above-mentioned problems, the purpose of this utility model is to develop a flexible tooth threshing system with high productivity, low damage and high adaptability, which can adjust the threshing gap. Rescued out, save manpower, improve production efficiency.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a flexible tooth threshing system with adjustable threshing gap, including a threshing drum mounted on the frame through a drum shaft and a concave groove installed below the threshing drum Plate sieve, the concave plate sieve is provided with a plurality of through holes to facilitate the separation of oil seeds; the outer side of the threshing drum is covered with a drum cover, and a threshing chamber is formed in the drum cover; the threshing drum is located in the threshing chamber, and includes There are two gap adjustment end plates fixed on the drum shaft, and a plurality of threshing tooth fixing rods with flexible threshing nail teeth are arranged between the two gap adjustment end plates; the drum shaft at the input end of the threshing drum is provided with spirally distributed feeders. Into the auger, a feeding inlet is set on the drum cover corresponding to the feeding auger, a plurality of grass discharge boards are distributed on the drum shaft at the output end of the threshing drum, and a straw outlet is set on the drum cover corresponding to the grass discharge board on the shell.

The two gap adjustment end plates of the threshing drum are respectively provided with several sets of end plate grooves along the axial direction, and the end plate grooves on the two gap adjustment end plates are arranged in one-to-one correspondence; each group of end plate grooves includes teeth located in the middle The rod chute and the screw grooves arranged on both sides, a connecting block is positioned in the two screw grooves through the locking structure, and the threshing tooth fixing rod is fixed between the corresponding two connecting blocks on the two gap adjustment end plates, and The threshing tooth fixing rod is set in the gear bar chute, and the radius of rotation of the flexible threshing nail teeth on the threshing tooth fixing rod around the drum axis can be changed by moving the connecting block in the screw groove, so as to change the threshing drum and the concave plate. The threshing gap between the sieves can achieve the purpose of threshing under the change of material characteristics.

Preferably, the flexible threshing spike adopts a round nylon rod, and the flexible threshing spike is covered with a spring, and the spring is fixed on the threshing tooth fixing rod. The adoption of this structure is beneficial to reduce the impact force of the threshing teeth on rapeseeds, prolong the action time on rapeseed pods, improve the threshing rate, and reduce the damage and threshing loss of rapeseeds.

Preferably, the concave screen is arranged on a horizontal semi-cylindrical surface.

Preferably, the through holes on the concave screen are grid holes. the

Preferably, the flexible threshing nail teeth on the threshing cylinder are arranged according to the helical line rule. A grass guide strip is arranged on the drum cover above the threshing drum. Adopting this structure is conducive to better threshing and sorting, and at the same time, the stalks and large broken straws can enter the grass discharge board along the spiral line.

Preferably, the feeding port is arranged in the tangential direction of the feeding auger, and the protruding part of the feeding port is in an inverted V shape. Adopting this structure is beneficial to prevent the feeding material from remaining in the feeding port.

Preferably, a shield is provided on the upper part of the feeding port. Adopting this structure can prevent the rapeseed from splashing out of the processing box under the action of the threshing system, and avoid the loss and waste of the rapeseed. In addition, it can also play a role of safety protection to prevent personnel from being scratched by the threshing components.

Preferably, the straw outlet is arranged on the drum cover corresponding to the grass discharge board along the tangential direction.

When the utility model is in use, the crops with pods such as rapeseed are fed from the feeding port, and are sent to the threshing drum through the feeding auger, and the threshing is realized under the action of the flexible threshing nail teeth and the concave plate sieve. The grains are discharged through the concave plate sieve, and the thick stalks are pushed axially to the straw outlet under the action of the spirally arranged flexible threshing nail teeth and the grass guide strips on the drum cover, and are forced to be discharged by the grass discharge plate Threshing room.

Compared with the prior art, the utility model has the beneficial effects of:

1. The utility model adopts the structure of flexible threshing nail teeth, so that the action time of crop siliques on the flexible threshing nail teeth is prolonged, the instantaneous impact force is reduced, and the broken rate of rapeseed can be reduced. The gap is variable, which can adapt to the threshing requirements of the material to be threshed due to changes in physical properties, and improve the adaptability to the threshing material.

2. The utility model is set to input the material to the threshing drum through the feeding auger, so that it is beneficial for the material to enter between the threshing nail teeth and the concave plate sieve along the helical line of the feeding auger for kneading and threshing.

3. The utility model is equipped with a grass discharge plate at the output end of the threshing drum, and the grass discharge plate is connected with the straw outlet, which is beneficial to better discharge the stalks and large broken straws out of the machine from the straw outlet.

4. The utility model adopts mechanical operation for threshing the grain of crops. Compared with the traditional manual threshing, the threshing is fast, the productivity is high, and the broken rate is low, and the adaptability is high.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model, constitute a part of the application, and do not constitute an improper limitation of the utility model. In the accompanying drawings:

Fig. 1 is that the utility model does not establish the structural representation of concave plate sieve;

Fig. 2 is a structural schematic diagram of the gap adjustment end plate and the concave plate sieve of the threshing cylinder of the present invention;

Fig. 3 is the structural representation of the utility model;

Fig. 4 is a structural schematic diagram of an embodiment of the flexible threshing nail of the present invention.

Labels in the figure:

1. Threshing chamber; 2. Rack; 3. Roller supporting bearing; 4. Feeding auger; 5. Gap adjustment end plate; 6. Flexible threshing nail teeth; 9. Grass discharge board; 10. Drum shaft; 11. Drum cover; 12. Feeding inlet; 13. Concave screen; 14. Straw outlet; 15. Screw groove; 16. Gear rod chute; ; 18, through hole; 19, spring; 20, threshing drum.

Detailed ways

Referring to Fig. 1-Fig. 4, the utility model flexible tooth threshing system with adjustable threshing gap includes a threshing drum 20 installed on the frame 2 via a drum shaft 10 and a concave screen 13 installed below the threshing drum 20 . The drum shaft 10 is installed on the frame 2 through the drum support bearing 3, and the concave screen 13 is provided with a plurality of through holes 18 for convenient separation of oil seeds. The outer side of the threshing drum 20 is covered with a drum casing 11 , and a threshing chamber 1 is formed in the drum casing 11 . The threshing drum 20 is located in the threshing chamber 1, and includes two gap adjustment end plates 5 fixed on the drum shaft 10, and a plurality of threshing tooth fixing rods 7 with flexible threshing nail teeth 6 are arranged between the two gap adjustment end plates 5 . The drum shaft 10 at the input end of the threshing drum is provided with a feeding auger 4 distributed in a spiral shape, a feeding port 12 is arranged on the drum cover 11 corresponding to the feeding auger 4, and is located on the drum shaft 10 at the output end of the threshing drum Distribution is provided with a plurality of grass-discharging boards 9, and a straw outlet 14 is arranged on the drum casing 11 corresponding to the grass-discharging boards 9.

The two gap adjusting end plates 5 of the threshing drum 20 are respectively provided with several groups of end plate grooves along the axial direction, and the end plate grooves on the two gap adjusting end plates 5 are set correspondingly one by one. In this embodiment, each group of end plate slots includes a gear bar sliding slot 16 in the middle and screw slots 15 on both sides, a connecting block 17 is positioned in the two screw slots 15 through a locking structure, and the gap between the two The threshing gear fixing rod 7 is fixed between the corresponding two connecting blocks 17 on the adjustment end plate 5, and the threshing gear fixing rod 7 is arranged in the gear bar chute 16, and the threshing gear can be changed by moving the connecting block 17 in the screw groove 15. The radius of gyration of the flexible threshing nail teeth 6 on the tooth fixing rod 7 rotating around the drum shaft 10 is to change the threshing gap between the threshing drum 20 and the concave screen 13, so as to realize the purpose of threshing under the change of material properties.

Preferably, the flexible threshing spike 6 can be a round nylon rod, and the flexible threshing spike 6 is covered with a spring 19 , and the spring 19 is fixed on the threshing tooth fixing rod 7 . The adoption of this structure is beneficial to reduce the impact force of the threshing teeth on rapeseeds, prolong the action time on rapeseed pods, improve the threshing rate, and reduce the damage and threshing loss of rapeseeds.

Preferably, the concave screen 13 is arranged on a horizontal semi-cylindrical surface, and the through holes 18 on the concave screen 13 are grid holes. the

Preferably, the flexible threshing spikes 6 on the threshing cylinder 20 are arranged according to the helical law. A grass guide strip 8 is arranged on the drum cover 11 above the threshing drum 20 . Adopting this structure is conducive to better threshing and sorting, and at the same time, the stalks and large broken stalks can enter the grass discharge plate 9 along the spiral line.

Preferably, the feeding port 12 is arranged in the tangential direction of the feeding auger 4, and the protruding part of the feeding port 12 is in an inverted V shape, so as to prevent the feeding material from remaining in the feeding port.

As a preference, a shield (not shown) is provided on the upper part of the feeding port 12 to prevent the rapeseed from splashing out during the threshing process, effectively avoiding the loss and waste of rapeseed. Scratched by threshing components.

As preferably, the straw outlet 14 is arranged on the roller cover 11 corresponding to the grass discharge plate 9 along the tangential direction.

When the utility model is used, the power device drives the drum shaft 10 to rotate, so that the threshing system operates normally, and the crops entering the feeding port 12 are fed into the auger 4 and kneaded between the flexible threshing nail teeth 6 and the concave plate sieve 13, and the grains are in the Under the action of centrifugal force, they are separated by concave screen 13, and the stalks and large broken stalks are discharged from the straw outlet 14 by the grass discharge plate 9 under the joint action of the threshing drum 20 and the grass guide strip 8, and the grains are passed through by their own weight. The grid hole 18 of the concave screen 13 enters the collector (not shown in the figure).

Claims (10)

1. A flexible tooth threshing system with adjustable threshing gap, comprising a threshing drum (20) installed on the frame via a drum shaft (10) and a concave screen (13) installed under the threshing drum, The concave sieve is provided with a plurality of through holes to facilitate the separation of oil seeds; the outer side of the threshing drum is covered with a drum cover (11), and a threshing chamber (1) is formed in the drum cover. It is characterized in that the threshing The drum is located in the threshing chamber, and includes two gap adjustment end plates (5) fixed on the drum shaft, and a plurality of threshing tooth fixing rods (7) with flexible threshing nail teeth (6) are arranged between the two gap adjustment end plates; The drum shaft at the input end of the threshing drum is provided with feeding augers distributed in a spiral shape, a feeding inlet (12) is arranged on the drum cover corresponding to the feeding auger, and the drum shaft at the output end of the threshing drum is distributed with A plurality of grass-discharging boards (9), a straw outlet (14) is arranged on the drum casing corresponding to the grass-discharging boards. 2. The flexible tooth threshing system with adjustable threshing gap according to claim 1, characterized in that, the two gap adjustment end plates of the threshing cylinder are respectively provided with several sets of end plate grooves along the axial direction, and the two gap adjustment The end plate slots on the end plate are arranged in one-to-one correspondence; each set of end plate slots includes a gear bar chute (16) in the middle and screw slots (15) on both sides, and a connecting block (17) is locked The structure is positioned in the two screw grooves, and the threshing tooth fixing rod (7) is fixed between the two corresponding connecting blocks on the two gap adjustment end plates, and the threshing tooth fixing rod is arranged in the gear bar chute, and passes through the connecting block The movement in the screw groove can change the radius of gyration of the flexible threshing nail teeth on the threshing tooth fixing rod around the cylinder shaft, so as to change the gap between the threshing cylinder and the concave screen. 3. The flexible tooth threshing system with adjustable threshing gap according to claim 1 or 2, characterized in that the flexible threshing spike adopts a round nylon rod, and the flexible threshing spike is covered with a spring, and the spring is fixed On the threshing tooth fixed rod. 4. The flexible tooth threshing system with adjustable threshing gap according to claim 1 or 2, characterized in that the concave plate sieve is arranged on a horizontal semi-cylindrical surface. 5. The flexible tooth threshing system with adjustable threshing gap according to claim 1 or 2, characterized in that the through holes on the concave screen are grid holes. 6. The flexible tooth threshing system with adjustable threshing gap according to claim 1 or 2, characterized in that the flexible threshing nails on the threshing cylinder are arranged according to the helical law. 7. The flexible tooth threshing system with adjustable threshing gap according to claim 1 or 2, characterized in that a grass guide strip is arranged on the drum cover above the threshing drum. 8. The flexible tooth threshing system with adjustable threshing gap according to claim 1 or 2, characterized in that the feeding port is arranged in the tangential direction of the feeding auger, and the protruding part of the feeding port is in an inverted V shape . 9. The flexible tooth threshing system with adjustable threshing gap according to claim 1 or 2, characterized in that a shield is arranged on the upper part of the feeding port. 10. The flexible tooth threshing system with adjustable threshing gap according to claim 1 or 2, characterized in that, the straw outlet is arranged in a tangential direction on the drum cover corresponding to the grass discharge plate.