WO2023108816A1

WO2023108816A1 - Multifunctional corn threshing device

Info

Publication number: WO2023108816A1
Application number: PCT/CN2021/141948
Authority: WO
Inventors: 景立挺; 杨经纬; 姜少飞; 彭翔; 李吉泉
Original assignee: 浙江工业大学台州研究院
Priority date: 2021-12-14
Filing date: 2021-12-28
Publication date: 2023-06-22
Also published as: CN114223405B; CN114223405A

Abstract

A multifunctional corn threshing device, at least comprising a rack, a working shaft, a transmission shaft and a driving mechanism. The rack is fixedly connected to an outer cover. The outer cover is separately provided with a corn inlet and a corncob outlet. The working shaft comprises a peeling shaft and a threshing shaft, and the peeling shaft is fixedly and coaxially connected to the threshing shaft. A plurality of peeling protrusions are provided on the surface of the peeling shaft, and a plurality of threshing protrusions are provided on the surface of the threshing shaft. The corn inlet is located on the side proximate to the peeling shaft, and the corncob outlet is located on the side proximate to the threshing shaft. The transmission shaft is parallel to the working shaft, and a gap allowing corn bran and corn kernels to fall is formed between the transmission shaft and the working shaft. The outer surface of the transmission shaft is provided with a guide thread. The driving mechanism drives the working shaft and the transmission shaft to rotate oppositely. The present solution realizes peeling, threshing and transmission at the same time by one continuous step, and effectively improves the working efficiency.

Description

A multifunctional corn threshing device

technical field

The invention relates to the field of corn processing equipment, in particular to a multifunctional corn threshing device.

Background technique

Corn processing usually includes two steps of peeling and threshing, and then the corn cob is output. Existing equipment often can only realize one of the functions of peeling and threshing. Even if the above two functions are integrated in one device, an additional transmission mechanism is required to transport the peeled corn to the separation mechanism, resulting in The processing efficiency is low, and the production cost is high due to the additional transmission mechanism.

technical problem

The technical problem to be solved by the present invention is: in the existing corn processing equipment, peeling and threshing are often realized by two mechanisms, so the processing efficiency is low, and the production cost will be increased due to the additional transmission mechanism.

technical solution

In order to solve the problems of the technologies described above, the technical solutions provided by the invention are as follows:

The invention provides a multifunctional corn threshing device, comprising at least:

A frame, the frame is fixedly connected with an outer cover, and the outer cover is respectively provided with a corn inlet and a corncob outlet;

A working shaft, the working shaft includes a peeling shaft and a threshing shaft, the peeling shaft is fixedly connected with the threshing shaft and coaxially connected; the surface of the peeling shaft is provided with several peeling protrusions, and the threshing shaft The surface is provided with several threshing protrusions; the corn inlet is located on the side close to the peeling shaft, and the corncob outlet is located on the side close to the threshing shaft; several of the peeling protrusions are located along the Circumferentially and axially arranged at intervals, the peeling protrusions include a protrusion, a forward slope and a back slope, the forward slope faces the side where the corn enters, and the back slope faces the corn cob output side On one side, the forward slope and the back slope are respectively located on both sides of the protrusion along the axial direction of the peeling shaft, and the protrusion is opposite to the forward slope and the The back slope protrudes upward; the slope angle of the forward slope is smaller than the slope angle of the back slope, and the bottom end of the forward slope is lower than the bottom end of the back slope;

Transmission shaft, the transmission shaft is parallel to the working shaft, and there is a gap between the transmission shaft and the working shaft for corn husks and corn kernels to fall; the outer surface of the transmission shaft is provided with guide threads;

A driving mechanism, the driving mechanism respectively drives the working shaft and the transmission shaft to rotate in opposite directions.

Preferably, the outer surface of the threshing shaft is provided with secondary guide threads.

Preferably, a sieve plate is provided below the threshing shaft, and the sieve plate is connected with a vibration mechanism that drives the vibration of the sieve plate.

Further, the vibrating mechanism includes: a vibrating plate, the sieve plate is fixed on the vibrating plate, the vibrating plate is provided with a connecting part of the vibrating plate, and a connecting shaft is provided on the surface of the connecting part of the vibrating plate; the driving wheel , the driving wheel is fixedly connected to the threshing shaft; the surface of the driving wheel is deviated from the axis to be provided with an eccentric shaft; a transmission rod is connected to the connecting shaft and the eccentric shaft respectively; A gap for the vibration plate to move is left between the vibration plate and the frame.

Further, the vibrating plate is also provided with a drop hole, and the drop hole is located below the peeling shaft.

Further, an air blowing device is provided inside the outer cover, and a corn husk blowing outlet is provided on the frame, the air blowing device is correspondingly located on the lower side of the drop hole and the air blowing device faces the corn The skin blows out.

Preferably, several supporting parts are provided on the frame, the supporting parts are arranged under the vibrating plate and the upper surface of the supporting part can be in contact with the vibrating plate, and the upper surface of the supporting part is provided with a soft cushion.

Preferably, a corn grain collection tank is provided below the sieve plate, and the corn grain collection tank is fixedly connected with the frame.

Preferably, the driving mechanism includes a driving wheel, a first driven wheel and a second driven wheel, the driving wheel is connected with a rotation driving mechanism that drives the driving wheel to rotate, the first driven wheel, the second driven wheel and A belt is connected between the driving wheels; the first driven wheel is fixedly connected to the transmission shaft, and the second driven wheel is fixedly connected to the working shaft.

Preferably, the frame is provided with a guide baffle and an outlet guide plate, the guide baffle is arranged at the entrance of the corn, and the outlet guide plate is arranged under the outlet of the corn cob.

Beneficial effect

The advantages of the above scheme are:

1. The thread on the surface of the transmission shaft can drive the corn to move from the side of the peeling shaft to the side of the threshing shaft when the transmission shaft rotates. At the same time, the transmission shaft can also play an auxiliary role in pressing the corn, so as to facilitate the peeling shaft and the threshing shaft. Carry out the work so that the three actions of peeling, threshing and transportation are completed in one continuous working step, which can realize multiple functions at the same time, and the working efficiency can be effectively improved;

2. The structure of the peeling protrusion provided by this scheme, on the one hand, due to the small inclination angle of the forward slope, has less restrictions on the axial movement of the corn, avoiding interference with the normal transportation of the corn; on the other hand, the peeling The protrusions are arranged at intervals in the circumferential direction, and there are gaps between adjacent peeling protrusions in the circumferential direction, which present a structure similar to a sawtooth shape in the circumferential direction, which can increase the friction with the corn husks, thereby successfully peeling the corn Peel off. At the same time, the peeling protrusions are also arranged at intervals in the axial direction, so as to facilitate the contact with and block the corn on the back slope with a large slope, and prevent the corn from moving in reverse;

3. Compact structure, easy to produce.

Description of drawings

Fig. 1 shows the outline schematic diagram of a kind of preferred embodiment of multifunctional corn threshing device;

Figure 2 shows a schematic diagram of the internal components of the embodiment;

Figure 3 shows a schematic diagram of the connection between the working shaft and the sieve plate;

Fig. 4 shows the schematic diagram of the structure of the working shaft and the drive shaft;

Figure 5 shows a partial schematic view of part A in Figure 4;

Fig. 6 shows the schematic diagram of the cross-sectional shape of the peeled protrusion;

Figure 7 shows a partial schematic diagram of part B in Figure 4;

Figure 8 shows a half-sectional view of the multifunctional corn threshing device;

Explanation of reference numerals: 1-working shaft, 10-frame, 11-peeling shaft, 111-peeling protrusion, 112-positive slope, 113-protrusion, 114-backward slope, 115-back side , 12-threshing shaft, 121-threshing protrusion, 122-pair guide thread, 130-joint, 131-driving wheel, 132-transmission rod, 2-transmission shaft, 21-guiding thread, 30-driving wheel, 31- First driven wheel, 32-second driven wheel, 4-vibration plate, 40-support part, 41-drop hole, 42-sieve plate, 421-vibration plate connection part, 5-corn kernel collection tank, 6-outer cover , 60-corn husk blowing outlet, 601-corn cob outlet, 61-corn inlet, 62-guiding baffle, 63-exit guiding plate, 7-blowing device.

BEST MODE FOR CARRYING OUT THE INVENTION

Type the paragraph describing the best mode for carrying out the invention here.

Embodiments of the present invention

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer" etc. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, an integral connection, or It can be a detachable connection; it can be the internal communication of two elements; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific conditions of the above terms in the present invention meaning.

A preferred embodiment of a multifunctional corn threshing device is shown in Figure 1, the embodiment includes a frame 10 and internal working components, the frame 10 is connected with an outer cover 6, and the outer cover 6 is respectively provided with a corn inlet 61 and a corncob outlet 601 , corn can enter from the corn inlet 61, and after being processed by the internal working components, the remaining corn cobs are output from the corn cob outlet 601. Below the corn cob outlet 601, an outlet guide plate 63 is provided to guide the dropped corn cobs to roll down in an orderly manner; Play the function of guiding the corn to fall into the outer cover 6 in an orderly manner.

The internal working components are shown in Figure 2, including the working shaft 1 for peeling and threshing, the transmission shaft 2 for transmitting and assisting the function of pressing corn, and the sieve plate 42 for screening corn kernels. Realize the functions of peeling, threshing and screening and filtering of corn kernels. The bottom of the sieve plate 42 is provided with a corn grain collection tank 5, which realizes the collection of the corn grains dropped out by the sieve plate 42.

Wherein the specific structure of the working shaft 1 and the transmission shaft 2 can refer to FIG. 4 , the working shaft 1 includes a peeling shaft 11 and a threshing shaft 12, the peeling shaft 11 and the threshing shaft 12 are fixedly connected, and the two are coaxial. The transmission shaft 2 and the working shaft 1 are parallel to each other and the two are close to each other. There is a gap between the transmission shaft 2 and the working shaft 1, and corn husks and corn kernels can drop from the gap. The transmission shaft 2 is provided with a guide thread 21 . When working, the transmission shaft 2 and the working shaft 1 roll towards each other. On the one hand, the transmission shaft 2 can press the corn so that the working shaft 1 can perform the peeling and threshing work. On the other hand, the transmission shaft 2 drives the The corn moves along the axial direction of the working shaft 1 to realize the function of driving the corn to move from the peeling shaft 11 to the threshing shaft 12 . Moreover, peeling, threshing and transmission are an integral continuous process, which effectively increases work efficiency.

The concrete structure of described peeling shaft 11 is as shown in Figure 5 and Figure 6, and the surface of described peeling shaft 11 is provided with some peeling protrusions 111, and peeling protrusions 111 are in the circumferential direction of described peeling shaft 11. And the axial direction is evenly arranged at intervals, and there is a gap between two adjacent peeling protrusions 111 . The purpose of setting the gap is that in the circumferential direction, the peeling protrusion 111 presents a jagged jagged shape after the gap is set, which is beneficial to increase the friction on the corn husks and facilitate peeling off the corn husks; while in the axial direction, The provision of gaps also contributes to the function of improving friction. Considering that the normal transport of corn in the axial direction cannot have too much resistance, therefore, as shown in Figure 6, the peeling projections include a protruding portion 113, a forward slope 112 and a back slope 114. The slope 112 and the slope 114 are respectively located on the front and rear sides of the protrusion 113 along the axial direction, the slope 112 is facing the side where the corn enters, and the slope 114 is facing the side where the corn cob is output, And the slope of the forward slope 112 is smaller than the slope of the backward slope 114 , and the lowest position height of the forward slope 112 is lower than the lowest position height of the reverse slope 114 . In this design, the protruding part 113 plays the function of pressing the corn husk to realize peeling. During the normal transmission process of the corn, the corn is in contact with the forward slope 112. Since the forward slope 112 has a small inclination, the corresponding The resistance is small; and once the corn has a tendency to move in the opposite direction, what is in contact with the corn at this time is the back slope 114 with a larger slope, which effectively increases the resistance. Moreover, since the bottom of the back slope 114 is higher than the bottom of the forward slope 112, the back side 115 along the radial direction of the working shaft 1 will also provide a greater resistance for the corn, further preventing the corn from moving in reverse.

The concrete structure of described threshing shaft 12 is as shown in Figure 7, and the surface of threshing shaft 12 is provided with some threshing protrusions 121, and threshing protrusions 121 can dig corn kernels from corn cob during the process of threshing shaft 12 rotations, realize Threshing function. Further, the threshing shaft 12 is provided with a secondary guide thread 122, and the secondary guide thread 122 and the guide thread 21 work together to drive the corn to move in the axial direction and further prevent the corn from moving in reverse.

The working shaft 1 and the guide shaft 2 are driven to rotate by a driving mechanism. Preferably, the driving mechanism includes a driving wheel 30, a first driven wheel 31 and a second driven wheel 32, and the driving wheel 30 is connected with a rotation driving mechanism. A belt (not shown in the figure) is connected between the driving wheel 30 and the first driven wheel 31 and the second driven wheel 32 to realize transmission. The first driven wheel 31 is fixedly connected to the transmission shaft 2 , and the second driven wheel 32 is connected to the working shaft 1 .

In order to facilitate the sieve plate 42 to work more effectively, the sieve plate 42 is connected with a vibrating mechanism, which can drive the sieve plate 42 to reciprocate horizontally or vertically, so that the sieve plate 42 can vibrate, improving the screening effect and efficiency. In this embodiment, as shown in FIG. 3 , the vibrating mechanism includes a vibrating plate 4 , and the sieve plate 42 is fixedly arranged on the vibrating plate 4 . The vibrating plate 4 is provided with a connection portion 421 , and a connection shaft is provided on the surface of the connection portion 421 . The working shaft 1 is fixedly connected with a driving wheel 131 , and the driving wheel 131 rotates synchronously with the working shaft 1 . An eccentric shaft is arranged on the surface of the driving wheel 131 at a position deviated from the axis, and a transmission rod 132 is connected between the eccentric shaft and the connecting shaft. When the working shaft 1 rotates, the driving wheel 131 rotates accordingly, and through the motion transmission of the eccentric shaft and the connecting rod 132, the function of driving the vibration plate 4 is finally realized, so that the sieve plate 42 Vibration is also performed in the up, down, left, and right directions, and the sieve plate 42 and the working shaft 1 can be started and stopped simultaneously. A connecting portion 130 is provided between the working shaft 1 and the driving wheel 131 , and the connecting portion 130 is rotatably connected with the outer cover 6 to support the working shaft 1 and avoid affecting the working shaft 1 when the sieve plate 42 vibrates. It should be noted that a gap of reasonable size should be set between the vibrating plate 4 and the frame 10 to avoid mutual interference between the vibrating plate 4 and the frame 10 .

The frame 10 is provided with a plurality of supporting parts 40 , and the supporting parts 40 are located below the vibrating plate 4 and are in contact with the vibrating plate 4 to provide support for the vibrating plate 4 . The upper surface of the supporting part is provided with a soft pad, which provides cushioning for the vibrating plate 4 when the vibrating plate 4 moves up and down and hits the supporting part 40 .

The vibrating plate 4 is provided with a drop hole 41, and the drop hole 41 is located below the peeling shaft 11 to facilitate the corn husks to fall out. Further, the blowing device 7 is also arranged in the outer cover 6, and the corn husk blowing outlet 60 is provided on the frame 10 simultaneously, and the blowing device 7 faces the corn husk blowing outlet 60, and the blowing device 7 is arranged on Below the drop hole 41, the corn husks dropped from the drop hole 41 can be blown out directly from the corn husk outlet 60 by the air blowing device, so as to avoid the corn husks from accumulating below.

In a word, the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the present invention. within the scope of protection.

Industrial Applicability

Type the industrial applicability description paragraph here.

Sequence Listing Free Content

Type the sequence listing free content description paragraph here.

Claims

A multifunctional corn threshing device is characterized in that it at least includes:

A frame (10), the frame is fixedly connected with an outer cover (6), and the outer cover is respectively provided with a corn inlet (61) and a corncob outlet (601);

A working shaft (1), the working shaft includes a peeling shaft (11) and a threshing shaft (12), the peeling shaft is fixedly connected with the threshing shaft and coaxially connected; the surface of the peeling shaft is provided with several Peeling protrusions (111), the surface of the threshing shaft is provided with several threshing protrusions (121); the corn inlet is located on the side close to the peeling shaft, and the corncob outlet is located on the side close to the threshing shaft ; several of the peeling protrusions are arranged at intervals along the circumferential direction and the axial direction of the peeling shaft, and the peeling protrusions include a protrusion (113), a forward slope (112) and a back slope (114 ), the forward slope faces the side where the corn enters, the back slope faces the side where the corn cob is output, the forward slope and the back slope are respectively located at the protrusion along the peeled on both sides of the axial direction of the shaft, and the protrusion protrudes upward relative to the forward slope and the back slope; the slope angle of the forward slope is smaller than the slope angle of the back slope, and The bottom end of the forward slope is lower than the bottom end of the back slope;

Transmission shaft (2), the transmission shaft is parallel to the working shaft, and there is a gap between the transmission shaft and the working shaft for corn husks and corn kernels to fall; the outer surface of the transmission shaft is provided with guide thread (21);

A driving mechanism, the driving mechanism respectively drives the working shaft and the transmission shaft to rotate in opposite directions.
The multifunctional corn threshing device according to claim 1, characterized in that, the outer surface of the threshing shaft is provided with secondary guide threads (122).
The multifunctional corn threshing device according to claim 1, characterized in that, a sieve plate (42) is provided below the threshing shaft, and the sieve plate is connected with a vibrating mechanism that drives the sieve plate to vibrate.
The multifunctional corn threshing device according to claim 3, wherein the vibration mechanism comprises:

A vibrating plate (4), the sieve plate is fixed on the vibrating plate, the vibrating plate is provided with a vibrating plate connecting part (421), and the surface of the vibrating plate connecting part is provided with a connecting shaft;

A driving wheel (131), the driving wheel is fixedly connected to the threshing shaft; an eccentric shaft is provided at a position where the surface of the driving wheel deviates from the axis;

a transmission rod (132), the transmission rod is respectively connected to the connecting shaft and the eccentric shaft;

A gap for the vibration plate to move is provided between the vibration plate and the frame.
The multifunctional corn threshing device according to claim 4, characterized in that, the vibrating plate is further provided with a drop hole (41), and the drop hole is located below the peeling shaft.
The multifunctional corn threshing device according to claim 5, characterized in that, an air blowing device (7) is provided inside the outer cover, and a corn husk blowing outlet (60) is provided on the frame, and the air blowing device Correspondingly located at the lower side of the drop hole and the air blowing device faces the corn husk blowing outlet.
The multifunctional corn threshing device according to claim 4, characterized in that, the frame is provided with several support parts (40), the support parts are arranged under the vibrating plate and the upper surface of the support part can be In contact with the vibrating plate, a soft pad is provided on the upper surface of the supporting part.
The multi-functional corn threshing device according to any one of claims 3-7, characterized in that a corn grain collection tank (5) is provided under the sieve plate, and the corn grain collection tank is fixed to the frame connect.
The multifunctional corn threshing device according to any one of claims 1-7, characterized in that, the driving mechanism includes a driving wheel (30), a first driven wheel (31) and a second driven wheel (32), so The driving wheel is connected with a rotary drive mechanism that drives the driving wheel to rotate, and a belt is connected between the first driven wheel, the second driven wheel, and the driving wheel; the first driven wheel is fixedly connected to the transmission shaft , the second driven wheel is fixedly connected to the working shaft.
The multifunctional corn threshing device according to any one of claims 1-7, characterized in that, the frame is provided with a guide baffle (62) and an outlet guide plate (63), and the guide baffle is arranged on the At the entrance of corn, the outlet guide plate is arranged below the outlet of the corn cob.