CN223142526U - Threshing device - Google Patents

Abstract

The utility model relates to the technical field of threshing agricultural machinery equipment, and discloses a threshing device, comprising a frame, a threshing box is arranged on the frame, a threshing assembly is rotatably arranged in the threshing box, a feeding port is arranged at the head of the threshing box, a debris discharge port is arranged at the tail of the threshing box, a screen is arranged at the bottom of the threshing box, and a discharge port is opened in the threshing box at a position below the screen; a negative pressure impurity removal device is further arranged at a position corresponding to the discharge port on the frame, the negative pressure impurity removal device comprises a negative pressure fan, and the suction end of the negative pressure fan is arranged at the position of the discharge port. The negative pressure impurity removal device can be used to further remove light substances in the threshing product, thereby improving the threshing effect of the equipment.

Description

Threshing device

Technical Field

The utility model relates to the technical field of threshing agricultural machinery equipment, in particular to a threshing device.

Background

Today, the rapid development of agricultural mechanization, threshing is used as a key link of post-harvest treatment of crops, and the efficiency and effect of the threshing are directly related to the income of farmers and the subsequent processing quality of the crops. Traditional threshing device often only separates cereal from the cob through mechanical friction or striking mode, however, this in-process inevitably can mix into impurity such as straw, dust, garrulous leaf, and these impurity have not only increased the degree of difficulty of follow-up cereal clearance, still probably cause harmful effects to the quality of cereal.

With the continuous progress of agricultural technology and the increasing demands of farmers for efficient and clean agricultural production, higher requirements are put on the performance of threshing devices. Particularly, under the background of modern agriculture pursuing high yield and high quality, how to effectively remove impurities in threshing products and improve threshing efficiency and purity of grains becomes a problem to be solved urgently.

At present, although various threshing devices exist in the market, most of them focus on improving threshing efficiency, and the threshing devices still have obvious defects in impurity removal. Some devices have been attempted to separate impurities by a simple structure such as a screen, but have limited effects, and particularly, it has been difficult to achieve an ideal removal effect for fine and light impurities.

Therefore, a threshing device capable of efficiently and thoroughly removing impurities in threshing products is developed, and the threshing device has important significance in improving agricultural production efficiency and guaranteeing grain quality.

Disclosure of utility model

The utility model aims to provide a threshing device to solve the problems in the background art, and the negative pressure impurity removing device is introduced to effectively remove light matter impurities in threshing products by utilizing the suction effect of a negative pressure fan, so that the threshing effect of equipment and the purity of grains are obviously improved.

The threshing device comprises a frame, a threshing box is arranged on the frame, a threshing assembly is rotationally arranged in the threshing box, a feeding port is arranged at the head of the threshing box, a trash discharging port is arranged at the tail of the threshing box, a screen is arranged at the bottom of the threshing box, a blanking port is arranged at the position, corresponding to the lower part of the screen, of the threshing box, a negative-pressure trash removing device is further arranged at the position, corresponding to the blanking port, of the frame, the negative-pressure trash removing device comprises a negative-pressure fan, and a suction end of the negative-pressure fan is arranged at the position of the blanking port and used for adsorbing light substances in threshing products.

In order to further optimize the utility model, the following technical scheme can be preferably selected

Preferably, the frame is provided with the material receiving platform corresponding to the position of the feed opening, the material receiving platform can transversely reciprocate to swing, the tail end of the material receiving platform is provided with a discharge opening, the material receiving platform is arranged on the frame in a sliding mode, the bottom of the material receiving platform is connected with a reciprocating driving mechanism, and the material receiving platform capable of transversely reciprocating to swing is arranged on the frame, so that grains after threshing can be more uniformly distributed in the material receiving hopper, accumulation of the materials at a certain position is avoided, and the collection efficiency of the materials is improved. The discharge port arranged at the tail end of the receiving platform is combined with the characteristic of transverse reciprocating swing, so that a user can flexibly adjust the discharge position according to actual needs, the threshed grains can be conveniently and directly conveyed to a designated collecting container or processing equipment, and the flexibility and the degree of automation of a production line are improved.

Preferably, the material receiving platform comprises a material receiving hopper, a track is arranged on the frame along the swinging direction of the material receiving hopper, a track wheel matched with the track is arranged at the bottom of the frame, the feeding surface of the material receiving hopper is obliquely downwards arranged along the conveying direction, and the material receiving platform adopts an oblique downwards feeding surface design, so that materials can naturally slide to a material outlet under the action of gravity and reciprocating swinging, the clamping stagnation and accumulation phenomenon of the materials in the conveying process are reduced, and the smoothness and efficiency of material conveying are improved.

Preferably, the reciprocating driving mechanism comprises a swing motor arranged on the frame, the driving end of the swing motor is connected with a cam, the protruding part of the cam is provided with a connecting rod, the bottom of the receiving hopper is provided with a connecting seat, a connecting swing arm is arranged between the connecting seat and the connecting rod, two ends of the connecting swing arm are respectively hinged with the connecting rod and the connecting seat, the swing motor drives the cam to rotate so as to drive the receiving hopper to swing reciprocally, and the reciprocating swing of the receiving platform is realized by adopting simple and efficient mechanical structures such as the swing motor, the cam, the connecting rod and the connecting swing arm, so that the integral structure of the equipment is simplified, the manufacturing cost is reduced, and the reliability and the durability of the equipment are improved.

Preferably, the threshing assembly comprises a threshing main shaft which is rotatably arranged in a threshing box, a plurality of supporting wheels are coaxially arranged on the threshing main shaft, a threshing frame is axially arranged between the supporting wheels, threshing teeth are arranged on the outer side of the threshing frame, the threshing main shaft is connected with a driving source, and a plurality of spiral fixed cutters matched with the threshing teeth are arranged on the top of the threshing box.

Preferably, the threshing main shaft is coaxially connected with a fan shaft of the negative pressure fan, and the threshing assembly and the negative pressure fan share a driving source.

The threshing device capable of removing impurities has the advantages that:

1. The purity of the threshing product is obviously improved, namely, the powerful suction force of the negative pressure fan is utilized by introducing the negative pressure impurity removing device, so that light matter impurities such as straw scraps, dust, broken leaves and the like in the threshing product can be effectively adsorbed and removed, the purity of the threshed grains is obviously improved, and a raw material with higher quality is provided for subsequent processing.

2. The threshing efficiency is improved, namely the negative pressure impurity removing device and the threshing assembly work cooperatively, so that impurities generated in the threshing process can be removed in time, accumulation and interference of the impurities in the threshing box are reduced, smooth operation of the threshing assembly is facilitated, and overall threshing efficiency is improved.

3. The subsequent cleaning cost is reduced, namely, the impurities in the threshing products are effectively removed, so that the workload and difficulty of subsequent cleaning of grains are reduced, the cleaning cost is reduced, and the labor intensity of farmers is also reduced.

4. The device is not only suitable for threshing treatment of various crops, but also can effectively meet threshing requirements under different conditions of humidity, impurity content and the like, and has stronger adaptability and flexibility.

5. Promote the sustainable development of agriculture, which is helpful to reduce the generation of agricultural wastes by improving the purity and the efficiency of threshing products, promote the reasonable utilization of agricultural resources and the development of recycling economy and contribute to the sustainable development of agriculture.

Drawings

FIG. 1 is a schematic perspective view of a threshing device;

Fig. 2 is a front view of the threshing device;

FIG. 3 is a schematic view of the internal structure of the threshing device;

Fig. 4 is a schematic internal perspective view of the threshing device.

FIG. 5 is a schematic perspective view of a frame;

fig. 6 is a schematic diagram of a second perspective structure of the frame;

fig. 7 is an enlarged schematic view of the structure at a.

The device comprises a 1-frame, a 2-threshing box, a 3-feeding port, a 4-impurity discharging port, a 5-negative pressure impurity removing device, a 6-driving source, a 7-receiving platform, an 8-material discharging port, a 9-reciprocating driving mechanism, a 10-discharging port, a 11-threshing main shaft, a 12-supporting wheel, a 13-screen, a 14-threshing frame, 15-threshing teeth, a 16-negative pressure fan, a 17-cam, a 18-connecting rod, a 19-connecting swing arm, a 20-connecting seat, a 21-track and a 22-track wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the threshing device comprises a frame 1, a threshing box 2 is arranged on the frame, a threshing assembly is rotatably arranged in the threshing box, a feeding port 3 is arranged at the head of the threshing box, a trash discharging port 4 is arranged at the tail of the threshing box, a screen is arranged at the bottom of the threshing box, a blanking port 10 is arranged at the position below the screen corresponding to the threshing box, crops to be threshed enter the threshing box 2 from the feeding port, the crops to be threshed are subjected to breaking operation of the threshing assembly, oversize is discharged from a trash discharging port at the tail part, and undersize is discharged from the blanking port below the screen 13, wherein the threshing assembly comprises a threshing main shaft rotatably arranged in the threshing box, a plurality of supporting wheels 12 are coaxially arranged on the threshing main shaft 11, a threshing frame 14 is axially arranged between the supporting wheels, threshing teeth 15 are arranged at the outer side of the threshing frame, a driving source is connected to the threshing main shaft, and a plurality of spiral fixed blades matched with the threshing teeth are arranged at the top of the threshing box. The negative pressure impurity removing device 5 is further arranged on the frame corresponding to the position of the blanking opening, the negative pressure impurity removing device 5 comprises a negative pressure fan 16, a suction end of the negative pressure fan is arranged at the position of the blanking opening and used for adsorbing light substances in threshing products, the threshing main shaft is coaxially connected with a fan shaft of the negative pressure fan, and the threshing assembly and the negative pressure fan share a driving source 6 to ensure unified gait.

Further, a receiving platform 7 is arranged at the position of the frame corresponding to the discharging opening, a product discharged from the discharging opening falls onto the receiving platform, the receiving platform can transversely reciprocate, a discharging opening is arranged at the tail end of the receiving platform, the receiving platform is slidably arranged on the frame, the bottom of the receiving platform is connected with a reciprocating driving mechanism 9, the reciprocating driving mechanism 9 comprises a swinging motor arranged on the frame, the driving end of the swinging motor is connected with a cam 17, a connecting rod 18 is arranged at the protruding part of the cam, a connecting seat 20 is arranged at the bottom of the receiving hopper, a connecting swing arm 19 is arranged between the connecting seat and the connecting rod, the two ends of the connecting swing arm are respectively hinged with the connecting rod and the connecting seat, the swinging motor drives the cam to rotate, and then the receiving hopper is driven to reciprocate, and by adopting simple and efficient mechanical structures such as the swinging motor, the cam, the connecting rod, the connecting arm and the like, the whole structure of the equipment is simplified, the manufacturing cost is reduced, and the reliability and the durability of the equipment are improved. According to the device, the material receiving platform capable of transversely reciprocating swinging is arranged on the frame, so that threshed grains can be more uniformly distributed in the material receiving hopper, accumulation of materials at a certain position is avoided, and the collection efficiency of the materials is improved. The reciprocating swing of the receiving platform is also beneficial to further separating residual impurities in materials and improving the purity of the materials, and the discharge opening 8 arranged at the tail end of the receiving platform 7 is combined with the characteristic of transverse reciprocating swing, so that a user can flexibly adjust the discharge position according to actual needs, the threshed grains can be conveniently and directly conveyed to a designated collecting container or processing equipment, and the flexibility and the automation degree of a production line are improved. Specifically, the material receiving platform comprises a material receiving hopper, a track 21 is arranged on the frame along the swinging direction of the material receiving hopper, a track wheel 22 matched with the track is arranged at the bottom of the material receiving platform, the material feeding surface of the material receiving hopper is obliquely downwards arranged along the conveying direction, the material receiving platform is designed by adopting an obliquely downwards feeding surface, so that materials can naturally slide to a material discharging port under the action of gravity and reciprocating swinging, the clamping stagnation and accumulation phenomenon of the materials in the conveying process are reduced, and the smoothness and efficiency of material conveying are improved.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. A threshing device comprises a frame and is characterized in that a threshing box is arranged on the frame, a threshing assembly is rotationally arranged in the threshing box, a feeding port is arranged at the head of the threshing box, a trash discharging port is arranged at the tail of the threshing box, a screen is arranged at the bottom of the threshing box, a discharging port is formed in the position, corresponding to the lower portion of the screen, of the threshing box, a negative-pressure trash removing device is further arranged in the frame, corresponding to the discharging port, and comprises a negative-pressure fan, and a material sucking end of the negative-pressure fan is arranged at the position of the discharging port and used for adsorbing light substances in threshing products.

2. The threshing device of claim 1, wherein the frame is provided with a receiving platform corresponding to the position of the discharging opening, the receiving platform can transversely swing in a reciprocating manner, the tail end of the receiving platform is provided with a discharging opening, the receiving platform is arranged on the frame in a sliding manner, and the bottom of the receiving platform is connected with a reciprocating driving mechanism.

3. A threshing device as recited in claim 2, wherein:

The material receiving platform comprises a material receiving hopper, a track is arranged on the frame along the swing direction of the material receiving hopper, a track wheel matched with the track is arranged at the bottom of the frame, and a feeding surface of the material receiving hopper is obliquely downwards arranged along the conveying direction.

4. A threshing device as claimed in claim 3, characterized in that:

The reciprocating driving mechanism comprises a swing motor arranged on the frame, the driving end of the swing motor is connected with a cam, a connecting rod is arranged at the protruding portion of the cam, a connecting seat is arranged at the bottom of the receiving hopper, a connecting swing arm is arranged between the connecting seat and the connecting rod, two ends of the connecting swing arm are respectively hinged to the connecting rod and the connecting seat, and the swing motor drives the cam to rotate so as to drive the receiving hopper to swing reciprocally.

5. A threshing device as recited in claim 1, wherein:

The threshing assembly comprises a threshing main shaft which is rotatably arranged in a threshing box, a plurality of supporting wheels are coaxially arranged on the threshing main shaft, a threshing frame is axially arranged between the supporting wheels, threshing teeth are arranged on the outer side of the threshing frame, the threshing main shaft is connected with a driving source, and a plurality of spiral fixed cutters matched with the threshing teeth are arranged on the top of the threshing box.

6. A threshing device as claimed in claim 5, wherein the threshing main shaft is coaxially connected with a fan shaft of a negative pressure fan, and the threshing component and the negative pressure fan share a driving source.