Wind power screening machine for grain crops

Abstract

The utility model relates to the technical field of grain screening, and discloses a grain crop wind power screening machine which comprises a supporting body and a connecting plate, the bottom end of the supporting body is fixedly connected with a driving assembly used for transmission, the top end of the supporting body is fixedly connected with a connecting frame, one side of the supporting body is fixedly connected with a connecting block, and the other side of the supporting body is fixedly connected with the connecting plate. And a centrifugal rod is rotationally connected to the interior of the connecting block, a first connecting shaft is rotationally connected to the exterior of the centrifugal rod, a connecting rod is fixedly connected to one side of the first connecting shaft, and a second connecting shaft is fixedly connected to one end of the connecting rod. According to the utility model, the filter plate and the material conveying plate are driven by the motor and are matched with transmission parts such as the belt, the driving wheel, the driven wheel and the connecting rod to generate reciprocating vibration, and the vibration can ensure that grain crops with smaller particles, irregular shapes or smooth surfaces are not easy to accumulate and adhere, so that the grain crops slide down on the filter plate more smoothly, and the screening speed is obviously increased; and the screening yield in unit time is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to grain screening technical field especially relates to a grain crop wind screening machine. BACKGROUND

[0002] The grain crop wind screening machine is a kind of mechanical equipment using wind force to screen and grade grain crops, mainly comprising feeding device, air separation device, screening device, discharging device and power and transmission system etc., mainly applied in agricultural field, especially in grain processing and warehousing link, in the grain harvesting process, often mixed with various impurities, such as straw, shriveled grain, dust, sandstone etc.These impurities can affect the taste, color and nutritional value of grain, through wind screening machine, the impurities such as shriveled grain, dust etc.

[0003] The screening machine is equipped with fan, and the high-speed rotating impeller promotes air flow after fan starts, forms airflow with certain speed and pressure, when airflow meets dispersed grain crops, different forces are generated on grain and impurities, due to the differences in specific gravity, shape, size etc.

[0004] In prior art, part of wind screening machine is used to blow grain to filter plate and then screen by gravity sliding when screening grain, due to lack of vibration, grain mainly relies on gravity sliding on filter plate, and its movement speed is relatively slow, especially for some small particles, irregular shape or smooth surface grain crops, grain filter plate is easy to accumulate and adhere to each other, hinder each other's sliding, thereby reducing the speed of entire screening process and reducing screening output per unit time, so a grain crop wind screening machine is proposed to solve the above problems. UTILITARIAN CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a kind of grain crop wind screening machine, to improve the speed of screening grain in prior art due to lack of vibration when part of wind screening machine screens grain.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A grain crop wind screening machine, including support body and connecting plate, the bottom end of the support body is fixedly connected with a driving assembly for transmission, the top end of the support body is fixedly connected with a link frame, one side of the support body is fixedly connected with a link block, the inside of the link block is rotatably connected with a centrifugal rod, the outside of the centrifugal rod is rotatably connected with a connecting shaft one, one side of the connecting shaft one is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a connecting shaft two, the bottom end of the connecting plate is fixedly connected with a conveying plate, the bottom end of the conveying plate is fixedly connected with a connecting frame, the top end of the connecting plate is fixedly connected with a filter plate, the top end of the support body is fixedly connected with a connecting frame on the left and right sides, the outside of the connecting plate is fixedly connected with a connecting block on the front and back sides, the outside of the connecting block and the outside of the connecting frame are fixedly connected with a link shaft on the same side, the inside of the link shaft is rotatably connected with a transmission rod;

[0008] As a further description of the above technical solution:

[0009] The driving assembly includes a motor, the bottom end of the motor is fixedly connected to the inside bottom end of the support body, the driving end of the motor is fixedly connected with two belts on the outside, and the inside of the two belts is sleeved with a driving wheel;

[0010] As a further description of the above technical solution:

[0011] The top end of the link frame is fixedly connected with a feeding port, the inside rear end of the link frame is fixedly connected with a fan, and the inside of the link frame is rotatably connected with a transmission shaft;

[0012] As a further description of the above technical solution:

[0013] The inside of the feeding port is rotatably connected with a sleeve rod, one side of the sleeve rod is fixedly connected with a side plate two, the inside of the sleeve rod is rotatably connected with a rotating rod, one side of the rotating rod is fixedly connected with a side plate one, one end of the rotating rod is fixedly connected with a cap, and one side of the cap is fixedly connected with a limiting rod;

[0014] As a further description of the above technical solution:

[0015] The outside of the fan is fixedly connected with a driven wheel on one side, and the outside of the link block is fixedly connected with another driven wheel on one side;

[0016] As a further description of the above technical solution:

[0017] The outside of the side plate two is rotatably connected to the inside of the feeding port, and the outside of the side plate one is rotatably connected to the inside of the feeding port;

[0018] As a further description of the above technical solution:

[0019] The outer part of the connecting plate is rotationally connected to the inner part of the support body, and the outer part of the second connecting shaft is rotationally connected to the inner part of the connecting frame;

[0020] Further description of the above technical solution is as follows:

[0021] The outer side of the sleeve rod is fixedly connected with a spring, and the other end of the spring is fixedly connected with a clamping block.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1. In the utility model, the filter plate and the conveying plate are reciprocatingly vibrated by the motor drive, the cooperation belt, the driving wheel, the driven wheel and the transmission components such as the connecting rod, the vibration can make the grain crops with smaller particles, irregular shapes or smooth surfaces not easy to accumulate and adhere, make the sliding on the filter plate more smooth, significantly accelerate the screening speed, and greatly improve the screening yield per unit time.

[0024] 2. In the utility model, the opening and closing size of the feeding port are adjusted by the opening and closing of the opposite plate one and the side plate two by the rotating rod and the sleeve rod, not only can effectively control the grain feeding speed to adapt to different production rhythm and scale, but also can effectively prevent the grain from blocking the feeding port, greatly improve the continuity and stability of the equipment operation, reduce the equipment downtime maintenance time caused by blocking, and improve the overall production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional schematic view of a grain crop wind force screening machine is provided for the utility model;

[0026] Figure 2 A support frame structure schematic view of a grain crop wind force screening machine is provided for the utility model;

[0027] Figure 3 A sleeve rod structure schematic view of a grain crop wind force screening machine is provided for the utility model;

[0028] Figure 4 For Figure 3 An enlarged view of A in the middle.

[0029] LEGEND:

[0030] 1, support body; 2, motor; 3, belt; 4, driving wheel; 5, driven wheel; 6, link frame; 7, link block; 8, centrifugal rod; 9, connecting shaft one; 10, connecting rod; 11, connecting shaft two; 12, connecting frame; 13, connecting plate; 14, material conveying plate; 15, filter plate; 16, connecting frame; 17, connecting block; 18, link shaft; 19, transmission rod; 20, transmission shaft; 21, fan; 22, inlet; 23, rotating rod; 24, side plate one; 25, side plate two; 26, sleeve rod; 27, cap; 28, limiting rod; 29, spring; 30, clamping block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] Referring to Figures 1 to 3 An embodiment provided by the utility model: a grain crop wind power screening machine, comprising a support body 1 and a connecting plate 13, the support body 1 is the basic framework of the whole screening machine, provides stable installation and support platform for other components, the connecting plate 13 can move in a specific way inside the support body 1, which provides basic conditions for subsequent implementation of the multiple movements of the filter plate 15, the connecting plate 13 is rotatably connected outside the support body 1, the bottom end of the support body 1 is fixedly connected with a driving assembly for transmission, the driving assembly comprises a motor 2, the motor 2 can provide appropriate power output according to the screening requirements of different grain crops to adapt to the screening operation under various working conditions.

[0033] The bottom end of the motor 2 is fixedly connected to the inner bottom end of the support body 1, and the driving end of the motor 2 is fixedly connected with two belts 3, which are matched with the driving wheel 4 to transmit to the subsequent transmission components, thereby driving the whole screening operation. The inner part of each belt 3 is sleeved with the driving wheel 4. The top end of the support body 1 is fixedly connected with the connecting frame 6, which provides installation positions and working spaces for the inlet 22, the fan 21 and the transmission shaft 20 and other components inside, can guide the grain material to smoothly enter the screening area, and ensure that the airflow generated by the fan 21 forms a stable flow field inside, effectively acting on the grain crops. One side of the support body 1 is fixedly connected with the connecting block 7, and the other side of the outer part of the connecting block 7 is fixedly connected with another driven wheel 5. The inner part of the connecting block 7 is rotatably connected with the centrifugal rod 8. The rotatable connection of the centrifugal rod 8 in the connecting block 7 enables it to rotate at high speed under the driving of power. When the centrifugal rod 8 rotates, due to its special motion trajectory and mechanical properties, centrifugal force will be generated. The centrifugal force is transmitted to the connecting rod 10 through the rotatable connection with the connecting shaft 1. The connecting shaft 1 serves as an intermediate transmission component, which can convert the rotary motion of the centrifugal rod 8 into the swing motion of the connecting rod 10.

[0034] The outer rotating connection of the centrifugal rod 8 is connected with the connecting shaft 9, one side of the connecting shaft 9 is fixedly connected with the connecting rod 10, the connecting rod 10 further transmits the swinging motion to the connecting shaft 11, through the ingenious cooperation between the parts, the conversion from the rotating motion to the swinging motion is realized, the reciprocating screening motion of the material conveying plate 14 and the filter plate 15 is driven, the material conveying plate 14, the connecting plate 13, one end of the connecting rod 10 is fixedly connected with the connecting shaft 11, the bottom end of the connecting plate 13 is fixedly connected with the material conveying plate 14, the material conveying plate 14 is fixed at the bottom end of the connecting plate 13, its main function is to receive the grain crops entering from the inlet 22, the bottom end of the material conveying plate 14 is fixedly connected with the connecting frame 12, the outer rotating connection of the connecting shaft 11 is in the inside of the connecting frame 12, the top end of the connecting plate 13 is fixedly connected with the filter plate 15, the filter plate 15 is the core screening component of the screening machine, it is fixed at the top end of the connecting plate 13, can accurately screen and separate the grain crops, the aperture size of the filter plate 15 is designed according to the screening requirements of different grain crops, can not only ensure that the grain particles pass smoothly, but also effectively block impurities, the top end of the support body 1 is fixedly connected with the connecting frame 16 on the left and right sides, the outer sides of the connecting plate 13 are fixedly connected with the connecting blocks 17 on the front and back sides, the outer sides of the connecting blocks 17 and the outer sides of the connecting frames 16 are fixedly connected with the connecting shafts 18 on the same side, the inside of the connecting shaft 18 is rotatably connected with the transmission rod 19, when the connecting plate 13 moves up and down under the driving of other components, the connecting blocks 17 also move, further make the connecting shaft 18 rotate in the inside of the transmission rod 19, the transmission rod 19 plays a role in restraining and guiding the movement of the connecting blocks 17, so that the filter plate 15 can produce a certain transverse swinging or vibrating effect while moving up and down, further improves the screening efficiency and quality, can more thoroughly separate the impurities in the grain crops, the top end of the connecting frame 6 is fixedly connected with the inlet 22, the inside of the rear end of the connecting frame 6 is fixedly connected with the fan 21, one side of the outside of the fan 21 is fixedly connected with the driven wheel 5, the inside of the connecting frame 6 is rotatably connected with the transmission shaft 20.

[0035] Referring to Figure 2 、 Figure 3 、 Figure 4The inside of the inlet 22 is rotatably connected with a sleeve rod 26, one side of the sleeve rod 26 is fixedly connected with a side plate two 25, the outside of the side plate two 25 is rotatably connected in the inside of the inlet 22, the inside of the sleeve rod 26 is rotatably connected with a rotating rod 23, one side of the rotating rod 23 is fixedly connected with a side plate one 24, the outside of the side plate one 24 is rotatably connected in the inside of the inlet 22, the side plate two 25 can flexibly rotate in the inside of the inlet 22 along with the rotation of the sleeve rod 26, and cooperates with the side plate one 24 to realize the adjustment of the opening and closing size of the inlet 22, one end of the rotating rod 23 is fixedly connected with a screw cap 27, one side of the screw cap 27 is fixedly connected with a limiting rod 28, the limiting rod 28 plays a role of limiting the rotation range or providing a specific positioning function, and ensures the movement accuracy and safety of the side plate one 24 and the side plate two 25 in the adjustment process, the combination of the spring 29 and the clamping block 30 provides the limiting and buffering function for the rotation of the sleeve rod 26, the screw cap 27 is convenient for manual operation of the operator, the rotation of the rotating rod 23 is driven by rotating the screw cap 27, one side of the outside of the sleeve rod 26 is fixedly connected with the spring 29, the other end of the spring 29 is fixedly connected with the clamping block 30.

[0036] Working principle: first, the motor 2 starts, the driving end of the motor 2 rotates to drive the synchronous rotation of the two belts 3, the belt 3 drives the rotation of the driving wheel 4, the rotation of the driving wheel 4 drives the rotation of the driven wheel 5 outside the fan 21 and the driven wheel 5 outside the connecting block 7, and the fan 21 rotates to generate airflow. At the same time, the rotation of the driving end of the motor 2 drives the rotation of the transmission shaft 20 through the transmission of the belt 3 and the driving wheel 4.

[0037] The grain enters from the inlet 22, the rotating rod 23 at the inlet 22 rotates to drive the rotation of the side plate one 24 in the inside of the inlet 22, the sleeve rod 26 rotates to drive the rotation of the side plate two 25 in the inside of the inlet 22, the opening and closing size of the inlet 22 can be adjusted, the grain feeding speed is controlled, and when the sleeve rod 26 rotates, the spring 29 outside the sleeve rod 26 stretches and contracts, the spring 29 drives the clamping block 30 to move, and the limiting function is realized.

[0038] The driving wheel 5 outside the connecting block 7 rotates to drive the centrifugal rod 8 to rotate, the centrifugal rod 8 rotates to drive the connecting shaft I 9 to rotate, the connecting shaft I 9 rotates to drive the connecting rod 10 to swing, the connecting rod 10 swings to drive the connecting shaft II 11 to slide inside the connecting frame 12, the sliding of the connecting shaft II 11 drives the connecting frame 12 to move up and down, the connecting frame 12 moves up and down to drive the feeding plate 14 to move up and down, the feeding plate 14 moves up and down to drive the connecting plate 13 to move up and down, the connecting plate 13 moves up and down to drive the filter plate 15 to move up and down, meanwhile, the connecting block 17 on the front and back sides outside the connecting plate 13 moves with the connecting plate 13, the connecting block 17 rotates the connecting shaft 18 near one side of the connecting frame 16, the connecting shaft 18 rotates to drive the transmission rod 19 to swing, so that the filter plate 15 moves up and down while vibrating. The grain on the filter plate 15 is blown away by the airflow, the qualified grain slides through the filter plate 15, and the heavy impurities remain on the filter plate 15, so as to realize the screening of the grain crops.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A wind sifter for grain crops, comprising a support body (1) and a connecting plate (13), characterized in that: The bottom end of the support body (1) is fixedly connected with a driving assembly for transmission, the top end of the support body (1) is fixedly connected with a connecting frame (6), one side of the support body (1) is fixedly connected with a connecting block (7), the inside of the connecting block (7) is rotatably connected with a centrifugal rod (8), the outside of the centrifugal rod (8) is rotatably connected with a connecting shaft (9), one side of the connecting shaft (9) is fixedly connected with a connecting rod (10), one end of the connecting rod (10) is fixedly connected with a connecting shaft (11), the bottom end of the connecting plate (13) is fixedly connected with a conveying plate (14), the bottom end of the conveying plate (14) is fixedly connected with a connecting frame (12), the top end of the connecting plate (13) is fixedly connected with a filter plate (15), the top end of the support body (1) is fixedly connected with a connecting frame (16) on the left and right sides, the outside of the connecting plate (13) is fixedly connected with a connecting block (17) on the front and back sides, the outside of the connecting block (17) is fixedly connected with a connecting shaft (18) on the side close to the outside of the connecting frame (16), and the inside of the connecting shaft (18) is rotatably connected with a transmission rod (19).

2. A wind sifter for grain crops as claimed in claim 1, wherein: The driving assembly comprises a motor (2), the bottom end of the motor (2) is fixedly connected to the inside bottom end of the support body (1), and the driving end of the motor (2) is fixedly connected with two belts (3) on the outside.

3. A wind sifter for grain crops as claimed in claim 1, wherein: The top end of the connecting frame (6) is fixedly connected with a feeding port (22), the inside rear end of the connecting frame (6) is fixedly connected with a fan (21), and the inside of the connecting frame (6) is rotatably connected with a transmission shaft (20).

4. A wind sifter for grain crops as claimed in claim 3, characterised in that: The inside of the feeding port (22) is rotatably connected with a sleeve rod (26), one side of the sleeve rod (26) is fixedly connected with a side plate two (25), the inside of the sleeve rod (26) is rotatably connected with a rotating rod (23), one side of the rotating rod (23) is fixedly connected with a side plate one (24), one end of the rotating rod (23) is fixedly connected with a cap (27), and one side of the cap (27) is fixedly connected with a limiting rod (28).

5. A wind sifter for grain crops as claimed in claim 3, wherein: One side of the outside of the fan (21) is fixedly connected with a driven wheel (5), and one side of the outside of the connecting block (7) is fixedly connected with another driven wheel (5).

6. A wind sifter for grain crops as claimed in claim 4, wherein: The outside of the side plate two (25) is rotatably connected in the inside of the feeding port (22), and the outside of the side plate one (24) is rotatably connected in the inside of the feeding port (22).

7. A wind sifter for grain crops as claimed in claim 1, wherein: The outside of the connecting plate (13) is rotatably connected in the inside of the support body (1), and the outside of the connecting shaft two (11) is rotatably connected in the inside of the connecting frame (12).

8. A wind sifter for grain crops as claimed in claim 4, wherein: One side of the outside of the sleeve rod (26) is fixedly connected with a spring (29), and the other end of the spring (29) is fixedly connected with a clamping block (30).

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