Panicum virgatum seed collecting and screening device

Abstract

The utility model relates to the technical field of seed collection, and discloses a switchgrass seed collecting and screening device which comprises a box body, a rubbing mechanism arranged in the box body and a sorting mechanism capable of selecting threshed seeds. The rubbing mechanism comprises a fixed plate fixedly installed on the inner wall of the box body, a movable plate moving in the box body and a driving assembly for driving the movable plate to vertically move up and down, the fixed plate and the movable plate are each composed of an upper section, a middle section and a lower section, and the lower sections of the fixed plate and the movable plate are vertical and close to each other; a plurality of protruding strips are fixedly installed on the sides, close to the lower sections of the fixed plate and the movable plate, of the fixed plate and the movable plate, the middle sections of the fixed plate and the movable plate are fixedly installed at the upper ends of the lower sections, the distance is larger in the direction closer to the upper end of the box body, and the upper sections of the fixed plate and the movable plate are fixedly installed at the upper ends of the middle sections. The utility model aims to solve the problem that the whole treatment efficiency of an existing threshing device is low due to the fact that seeds cannot be rapidly discharged from a discharging groove after threshing is completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seed collection, and particularly relates to a switchgrass seed collecting and screening device. BACKGROUND

[0002] Switchgrass (Panicum virgatum) is an important energy crop, and threshing and shelling treatment after large-scale seed harvesting is a key link affecting production efficiency. Traditional manual threshing has problems such as low efficiency and high breakage rate, and although mechanical threshing devices have been proposed in the prior art, there are still significant defects.

[0003] Chinese utility model CN203761886U discloses a kind of seed threshing device for switchgrass, including cylindrical casing, rotating friction pair is installed in the top of shell, rotating friction pair includes the rotating disc of upper part and the fixed disc of lower part, and gap is left between rotating disc and fixed disc, driving device is fixed on rotating disc, and inlet hole is opened in the center of rotating disc or near the center part, and the opposite surface of rotating disc and fixed disc is all engraved with the concave-convex grain of center part radially outward. It is separated from seed and pericarp by disc surface friction, but the rotating speed of rotating disc is limited (too high rotating speed can easily cause seed mechanical damage), and seed cannot be quickly discharged from discharge slot after completing threshing, resulting in low overall processing efficiency of threshing device. Therefore, we propose a kind of switchgrass seed collecting and screening device to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at: solve the problem that seed cannot be quickly discharged from discharge slot after completing threshing in the existing threshing device, resulting in low overall processing efficiency of threshing device.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] A kind of switchgrass seed collecting and screening device, including box, rubbing mechanism and sorting mechanism that can be selected to the seed of completing threshing, which are arranged in box, the rubbing mechanism includes fixed plate fixedly installed in the inner wall of box, movable plate movable in box and driving assembly for driving movable plate to move vertically up and down, the fixed plate and movable plate are all composed of upper, middle and lower three sections, the lower section of fixed plate and movable plate is vertically and close to each other, a plurality of convex strips are fixedly installed on the side of lower section of fixed plate and movable plate close to each other, the middle section of fixed plate and movable plate is fixedly installed on the upper end of lower section, and the distance between them is larger as closer to the direction of upper end of box, the upper section of fixed plate and movable plate is fixedly installed on the upper end of middle section, and the upper end of fixed plate is fixedly connected with the inner wall of box, the front of box is equipped with opening close to lower end, collecting box is slidably installed in the opening, and handle is arranged on collecting box.

[0007] Further limited, the drive assembly includes a motor, a first adapter rod and a second adapter rod rotatably connected at one end of the first adapter rod, the box is fixedly installed with a mounting plate, the mounting plate is provided with a mounting groove and a clearance groove, the motor is fixedly installed in the mounting groove, the first adapter rod is fixedly installed on the output shaft of the motor, the end of the second adapter rod is rotatably connected with the lower section of the movable plate, the mounting plate is fixedly installed with two limiting guide rails, the lower section of the movable plate is fixedly installed with two limiting columns, and the two limiting columns are respectively slidably connected in the two limiting guide rails. Such a structure design, when the motor works, the movable plate can be vertically moved up and down under the limiting action of the two limiting guide rails through the first adapter rod and the second adapter rod.

[0008] Further limited, the inside of the box is fixedly installed with a fixed block, the fixed block is provided with a bending groove, the upper end of the fixed block is fixedly installed with an elastic plate and an inclined guide plate on both sides of the bending groove, and the upper ends of the elastic plate and the inclined guide plate are fixedly connected with the lower ends of the movable plate and the fixed plate respectively. Such a structure design, the elastic plate ensures the movement of the movable plate, and the inclined guide plate and the bending groove of the fixed block can reduce the falling speed of the threshed seeds, so as to cooperate with the sorting mechanism to sort the seeds and select the mature seeds.

[0009] Further limited, the sorting mechanism includes a flow collector, a fixed rod and a plurality of fans, the flow collector is fixedly installed in the inside of the box, the air outlet of the flow collector is close to the left edge of the lower end of the fixed block, the fixed rod is fixedly installed in the flow collector, and the plurality of fans are fixedly installed in the flow collector through the fixed rod, a plurality of ventilation holes are formed in the left side of the box corresponding to the air inlet of the flow collector, and a cleaning port is arranged on the right side of the box close to the lower end. Such a structure design, simple structure, convenient to use.

[0010] Further limited, the opening width of the front face of the box is greater than the width of the collection box, and the collection box is located below the fixed block and the flow collector. Such a structure design, the position of the collection box in the opening can be adjusted horizontally to smoothly collect the seeds meeting the specifications.

[0011] Further limited, the convex strip is made of elastic rubber material, and the cross section thereof is triangular. Such a structure design, when the shell of the switchgrass seed is stripped by the convex strip, the elastic material will not damage the threshed seeds.

[0012] The utility model adopting the above technical scheme has the following advantages:

[0013] The utility model discloses, through the drive assembly drive movable plate reciprocating up and down activity, make the convex strip of fixed plate and movable plate lower section mutual friction to realize the separation of seed and glume, will not produce mechanical damage to seed, and seed will be discharged from the lower end of fixed plate and movable plate under the action of gravity after completing threshing, improve the processing efficiency, accelerate the collection speed of seed. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings.

[0015] Figure 1 It is the structure schematic diagram of a switchgrass seed collecting and screening device of the utility model;

[0016] Figure 2 It is the sectional structure schematic diagram of a switchgrass seed collecting and screening device of the utility model;

[0017] Figure 3 It is the structure schematic diagram of movable plate and drive assembly part in a switchgrass seed collecting and screening device of the utility model;

[0018] Figure 4 It is the structure schematic diagram of mounting plate part in a switchgrass seed collecting and screening device of the utility model;

[0019] Figure 5 It is the structure schematic diagram of sorting mechanism part in a switchgrass seed collecting and screening device of the utility model;

[0020] Figure 6 It is the sectional structure schematic diagram of fixed block part in a switchgrass seed collecting and screening device of the utility model.

[0021] The main element symbol explanation is as follows:

[0022] 1, box;11, mounting plate;12, limit guide rail;

[0023] 2, fixed plate;

[0024] 3, movable plate;31, limit column;

[0025] 4, collecting box;

[0026] 5, motor;51, first adapter rod;52, second adapter rod;

[0027] 6, fixed block;61, bent groove;62, elastic plate;63, inclined guide plate;

[0028] 7, flow collector;71, fixed rod;72, fan;73, cleaning port. DETAILED DESCRIPTION

[0029] The utility model will be carried out detailed description in combination with the drawings and specific embodiment, it is to explain that, in the drawing or the description, similar or same part all uses same figure number, the implementation mode that is not drawn or described in the drawing, the form that is known to ordinary skilled in the art. In addition, the direction language mentioned in the embodiment, for example, "up", "down", "top", "bottom", "left", "right", "front", "back" and the like, only refer to the direction of the drawing, and not be used to limit the protection scope of the utility model.

[0030] As Figures 1-6 The utility model discloses a switchgrass seed collection and screening device, including box 1, set up in the rubbing mechanism of box 1 and the sorting mechanism who can select the seed of complete threshing, rubbing mechanism includes fixedly installed in the fixed plate 2 of box 1 inner wall, the movable plate 3 of activity in box 1 and drive assembly that drives movable plate 3 vertical up and down activity, fixed plate 2 and movable plate 3 all are composed of upper, middle, lower three sections, the lower section of fixed plate 2 and movable plate 3 is vertical and mutually close, and the side of fixed plate 2 and movable plate 3 lower section close to each other is fixedly installed with several convex strips, and the convex strip is elastic rubber material, and its section is triangle, and the convex strip of elastic rubber material can remove the switchgrass seed shell when rubbing, and also can protect the seed that complete threshing to prevent the seed from being damaged, influence growth rate, the middle section of fixed plate 2 and movable plate 3 is fixedly installed on the upper end of lower section, and the distance is greater in the direction of being closer to the upper end of box 1, the upper section of fixed plate 2 and movable plate 3 is fixedly installed on the upper end of middle section, and the upper end of fixed plate 2 is fixedly connected with the inner wall of box 1, and the front of box 1 is equipped with the opening close to the lower end, and the opening is slidably installed with the collection box 4, and the collection box 4 is equipped with handle, and the opening width of the front of box 1 is greater than the width of collection box 4, and the collection box 4 is located below fixed block 6 and the flow collector 7, and the collection box 4 can move horizontally in the opening, to adaptively adjust the position of the seed receiving.

[0031] Drive assembly includes motor 5, first adapter rod 51 and second adapter rod 52 that rotates and connects in the one end of first adapter rod 51, and the fixed mounting plate 11 is fixedly installed in box 1, and the installation groove and the accommodation slot are set up in the fixed mounting plate 11, and the motor 5 is fixedly installed in the installation groove, and the first adapter rod 51 is fixedly installed on the output shaft of motor 5, and the end of second adapter rod 52 is rotationally connected with the lower section of movable plate 3, and the fixed mounting plate 11 is fixedly installed with two limit guide rails 12, and the lower section of movable plate 3 is fixedly installed with two limit posts 31, and two limit posts 31 are respectively slidably connected in two limit guide rails 12, and the limit effect of two limit guide rails 12 can be generated to two limit posts 31 and movable plate 3, so that movable plate 3 vertically moves up and down when stressed.

[0032] The inside of the box body 1 is fixedly provided with a fixed block 6, the fixed block 6 is provided with a bending groove 61, the upper end of the fixed block 6 is fixedly provided with an elastic plate 62 and an inclined guide plate 63 on the both sides of the groove opening of the bending groove 61, the elastic plate 62 can ensure the movement of the movable plate 3, the inclined guide plate 63 cooperates with the elastic plate 62 to guide the threshed seeds and hulls to the upper groove opening of the bending groove 61, and the upper ends of the elastic plate 62 and the inclined guide plate 63 are fixedly connected with the movable plate 3 and the lower end of the fixed plate 2 respectively.

[0033] The sorting mechanism comprises a flow collector 7, a fixed rod 71 and a plurality of fans 72, the flow collector 7 is fixedly installed in the inside of the box body 1, the air outlet of the flow collector 7 is close to the lower end left side edge of the fixed block 6, the fixed rod 71 is fixedly installed in the flow collector 7, the plurality of fans 72 are fixedly installed in the flow collector 7 through the fixed rod 71, a plurality of ventilation holes are formed in the left side of the box body 1 corresponding to the air inlet of the flow collector 7, and a cleaning port 73 is arranged on the right side of the box body 1 close to the lower end.

[0034] The use method of the utility model is as follows:

[0035] In use, the motor 5 works, the output shaft drives the movable plate 3 to vertically move up and down under the limiting action of the limiting guide rail 12 through the first connecting rod 51 and the second connecting rod 52, at the moment, the initial collected switchgrass seeds are put into the upper end of the box body 1, the convex strips on the movable plate 3 and the fixed plate 2 can rub and twist the seeds, so that the switchgrass seeds are separated from the hulls;

[0036] The separated seeds are smaller than the interval between the convex strips on the lower section of the movable plate 3 and the fixed plate 2, the hulls and the seeds can fall downwards under the action of gravity until entering the bending groove 61 of the fixed block 6 under the guiding action of the inclined guide plate 63 and the elastic plate 62, the hulls and the seeds continue to fall downwards under the deceleration action of the bending groove 61, at the moment, the fans 72 work, the flow collector 7 concentrates air flow to the lower groove opening of the bending groove 61, blows the hulls and the seeds, the hulls and the immature dry seeds are blown to the vicinity of the cleaning port 73 under the action of the air flow, and the mature seeds fall into the collecting box 4 and are collected.

[0037] The switchgrass seed collecting and screening device is introduced in detail. The description of the specific embodiment is only used for helping to understand the method and the core idea of the utility model. It should be pointed out that, for ordinary skilled persons in the art, without departing from the principle of the utility model, the utility model can be improved and modified in many ways, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A sorghum seed collecting and screening device comprising a box (1), a rubbing mechanism arranged in the box (1) and a sorting mechanism capable of selecting seeds with completed threshing, characterized in that: The kneading mechanism comprises a fixed plate (2) fixedly installed on the inner wall of the box (1), a movable plate (3) movably installed in the box (1), and a driving assembly for driving the movable plate (3) to move vertically up and down, the fixed plate (2) and the movable plate (3) are each composed of three sections, i.e., an upper section, a middle section and a lower section, the lower sections of the fixed plate (2) and the movable plate (3) are vertically arranged and close to each other, a plurality of protrusions are fixedly installed on the side of the lower sections of the fixed plate (2) and the movable plate (3) close to each other, the middle sections of the fixed plate (2) and the movable plate (3) are fixedly installed on the upper ends of the lower sections, and the distance between the middle sections of the fixed plate (2) and the movable plate (3) increases as the middle sections are closer to the upper end of the box (1), the upper sections of the fixed plate (2) and the movable plate (3) are fixedly installed on the upper ends of the middle sections, and the upper end of the fixed plate (2) is fixedly connected with the inner wall of the box (1), an opening is formed on the front side of the box (1) close to the lower end, a collecting box (4) is slidably installed in the opening, and a handle is arranged on the collecting box (4).

2. The switchgrass seed collection and screening apparatus of claim 1, wherein: The driving assembly comprises a motor (5), a first adapter rod (51) and a second adapter rod (52) rotatably connected to one end of the first adapter rod (51), an installation plate (11) is fixedly installed in the box (1), the installation plate (11) is provided with an installation groove and a clearance groove, the motor (5) is fixedly installed in the installation groove, the first adapter rod (51) is fixedly installed on the output shaft of the motor (5), and the second adapter rod (52) is rotatably connected to the lower section of the movable plate (3), two limiting guide rails (12) are fixedly installed on the installation plate (11), and two limiting columns (31) are fixedly installed on the lower section of the movable plate (3).

3. The switchgrass seed collection and screening apparatus of claim 1, wherein: A fixed block (6) is fixedly installed in the box (1), a bending groove (61) is formed in the fixed block (6), and elastic plates (62) and inclined guide plates (63) are fixedly installed on the upper end of the fixed block (6) on both sides of the opening of the bending groove (61), and the upper ends of the elastic plates (62) and the inclined guide plates (63) are fixedly connected with the lower ends of the movable plate (3) and the fixed plate (2), respectively.

4. The switchgrass seed collection and screening apparatus of claim 3, wherein: The sorting mechanism comprises a flow collector (7), a fixed rod (71) and a plurality of fans (72), the flow collector (7) is fixedly installed in the box (1), the left edge of the lower end of the flow collector (7) is close to the fixed block (6), the fixed rod (71) is fixedly installed in the flow collector (7), and the plurality of fans (72) are fixedly installed in the flow collector (7) through the fixed rod (71), a plurality of ventilation holes are formed in the left side of the box (1) corresponding to the air inlet of the flow collector (7), and a cleaning opening (73) is formed in the right side of the box (1) close to the lower end.

5. The switchgrass seed collection and screening apparatus of claim 4, wherein: The opening width of the front side of the box (1) is greater than the width of the collecting box (4), and the collecting box (4) is located below the fixed block (6) and the flow collector (7).

6. The switchgrass seed collection and screening apparatus of claim 1, wherein: The protrusions are made of elastic rubber and have a triangular cross section.

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