Leymus chinensis seed screening machine

Abstract

The utility model provides a leymus chinensis seed screening machine which comprises a machine frame, a hopper arranged at the top of the machine frame, a horizontally-arranged screen arranged below the hopper, an eccentric wheel mechanism arranged at the bottom of the screen and used for driving the screen to vibrate, a fan arranged on one side of the machine frame, and a baffle arranged on the edge of the screen. A discharging port is formed in the position, away from the draught fan, of the baffle, an air outlet of the draught fan faces horizontally and is formed in the upper side of the screen, and output air can be blown to the screen. According to the leymus chinensis seed screening machine, the size and the weight serve as screening indexes, wind power and vibration screening is adopted, the screening efficiency and the screening effect are improved, manual screening is replaced, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a sheep grass seed screening machine. Background Art

[0002] Sheepgrass, also known as alkali grass, grows well in cold and dry areas. It turns green early in spring and turns yellow late in autumn, and can provide more green fodder over a longer period of time.

[0003] Before sowing, the seeds of Leymus chinensis need to be screened to remove impurities such as fine sand and shriveled seeds. If these impurities and shriveled seeds are not fully screened out in advance, the germination rate of the seeds will be greatly affected. Traditional seed screening methods are mostly manual screening, which is time-consuming and labor-intensive, and cannot guarantee that the impurities and shriveled seeds in the seeds can be fully selected.

[0004] Therefore, it is necessary to design a sheep grass seed screening machine to solve the above technical problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides a sheep grass seed screening machine.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A sheepgrass seed screening machine comprises a frame, a hopper is provided on the top of the frame, a horizontally arranged screen is provided below the hopper, the screen is slidably connected to the frame up and down, an eccentric wheel mechanism for driving the screen to vibrate is provided at the bottom of the screen, a fan is provided on one side of the frame, a baffle is provided on the edge of the screen, a discharge port is provided at a position of the baffle away from the fan, the air outlet of the fan is horizontally oriented and arranged on the upper side of the screen, and the output wind can blow onto the screen.

[0008] Preferably, the fan includes a casing and a first rotating shaft, the casing is fixedly connected to the frame, the first rotating shaft is rotatably arranged in the casing, the first rotating shaft is provided with a plurality of fan blades arranged at equal intervals along its circumference, the plurality of fan blades are distributed radially, a motor is fixed on the frame, and the output shaft of the motor is drivingly connected to the first rotating shaft.

[0009] Preferably, the eccentric wheel mechanism includes two second rotating shafts, both of which are rotatably connected to the frame and are respectively arranged below the two ends of the screen, and eccentric wheels are fixed at both ends of each second rotating shaft, the eccentric wheels are in contact with the bottom of the screen, and the output shaft of the motor is transmission-connected to the two second rotating shafts.

[0010] Preferably, a stirring device is provided at the discharge port at the bottom of the hopper, and the stirring device includes a stirring shaft rotatably connected to the hopper, and the stirring shaft is provided with a plurality of stirring plates arranged at equal intervals along its circumference, and the plurality of stirring plates are distributed radially, and the output shaft of the motor is transmission-connected to the stirring shaft.

[0011] Preferably, the output shaft of the motor is connected to the first rotating shaft, the two second rotating shafts and the stirring shaft through a belt drive.

[0012] Preferably, the motor is an adjustable speed motor.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The sheepgrass seed screening machine of the utility model takes size and weight as screening indicators and adopts wind power and vibration screening, thereby improving screening efficiency and screening effect, replacing manual screening, and saving time and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model from a third viewing angle;

[0018] Figure 4 It is a schematic diagram of the structure of the stirring device in the utility model.

[0019] Description of Reference Numerals

[0020] 1-frame, 2-hopper, 3-screen, 4-baffle, 5-discharging port, 6-housing, 7-first rotating shaft, 8-fan blade, 9-motor, 10-second rotating shaft, 11-eccentric wheel, 12-stirring shaft, 13-stirring plate. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0022] like Figures 1 to 4As shown, a sheep grass seed screening machine includes a frame 1, a hopper 2 is provided on the top of the frame 1, a horizontally arranged screen 3 is provided below the hopper 2, the screen 3 is connected to the frame 1 in an up-and-down sliding manner, an eccentric wheel mechanism for driving the screen 3 to vibrate is provided at the bottom of the screen 3, a fan is provided on one side of the frame 1, a baffle 4 is provided on the edge of the screen 3, a discharge port 5 is provided at a position of the baffle 4 away from the fan, the air outlet of the fan is horizontally oriented, and is arranged on the upper side of the screen 3, and the output wind can blow onto the screen 3. The screen 3 can be set to a rectangular shape, the frame 1 is provided with four legs, the horizontal cross-sections of the four legs are all L-shaped, and the inner sides of the four legs are respectively in sliding contact with the four corners of the screen 3, forming an up-and-down sliding connection between the screen 3 and the frame 1. The working principle of the sheep grass seed screening machine in this embodiment is as follows: the sheep grass seeds fall from the hopper 2 onto the vibrating screen 3. While being vibrated, the seeds are affected by the wind force generated by the fan and move toward the discharge port 5. Some impurities are screened out by the screen 3, light impurities and shriveled seeds are blown out by the fan, and normal seeds are finally blown to the discharge port 5 for discharge. The sheep grass seed screening machine in this embodiment uses size and weight as screening indicators, adopts wind force and vibration screening, improves screening efficiency and screening effect, replaces manual screening, and saves time and effort.

[0023] In this embodiment, the fan includes a casing 6 and a first rotating shaft 7, the casing 6 is fixedly connected to the frame 1, the first rotating shaft 7 is rotatably arranged in the casing 6, the first rotating shaft 7 is provided with a plurality of blade plates 8 arranged at equal intervals along its circumference, and the plurality of blade plates 8 are distributed radially, a motor 9 is fixed on the frame 1, and the output shaft of the motor 9 is transmission-connected to the first rotating shaft 7, and the transmission connection method can be belt drive.

[0024] The eccentric wheel mechanism includes two second rotating shafts 10, both of which are rotatably connected to the frame 1 and are respectively arranged below the two ends of the screen 3. An eccentric wheel 11 is fixed at both ends of each second rotating shaft 10, and the eccentric wheel 11 is in contact with the bottom of the screen 3, and the screen 3 is driven to vibrate by the rotation of the eccentric wheel 11. The output shaft of the motor 9 is transmission-connected to the two second rotating shafts 10, and the transmission connection can be a belt drive, and the fan and the eccentric wheel mechanism are driven by one motor 9 at the same time. The motor 9 is preferably an adjustable speed motor 9, which is convenient for adjusting the fan speed and the vibration frequency of the screen 3.

[0025] In some embodiments, a stirring device is provided at the discharge port at the bottom of the hopper 2, which can make the seeds fall out evenly and prevent clogging. The stirring device includes a stirring shaft 12 rotatably connected to the hopper 2, and the stirring shaft 12 is provided with a plurality of stirring plates 13 arranged at equal intervals along its circumference. The plurality of stirring plates 13 are radially distributed, and the seeds at the discharge port of the hopper 2 are stirred by the rotation of the stirring shaft 12, so that the seeds fall out evenly and prevent clogging. Furthermore, the output shaft of the motor 9 is transmission-connected to the stirring shaft 12, and the transmission connection can be a belt drive, and the fan, the eccentric wheel mechanism and the stirring shaft 12 are driven by one motor 9 at the same time.

Claims

1. A sieving machine for Leymus chinensis seeds, characterized in that: The machine comprises a frame, a hopper is provided on the top of the frame, a horizontally arranged screen is provided under the hopper, the screen is slidably connected to the frame up and down, an eccentric wheel mechanism for driving the screen to vibrate is provided at the bottom of the screen, a fan is provided on one side of the frame, a baffle is provided on the edge of the screen, a discharge port is provided at a position of the baffle away from the fan, the air outlet of the fan is horizontally oriented and arranged on the upper side of the screen, and the output wind can blow onto the screen; A stirring device is provided at the discharge port at the bottom of the hopper, and the stirring device includes a stirring shaft rotatably connected to the hopper, and the stirring shaft is provided with a plurality of stirring plates arranged at equal intervals along its circumference, and the plurality of stirring plates are distributed radially. A motor is fixed on the frame, and the output shaft of the motor is drivingly connected to the stirring shaft.

2. A sheep grass seed screening machine according to claim 1, characterized in that: The fan includes a shell and a first rotating shaft, the shell is fixedly connected to the frame, the first rotating shaft is rotatably arranged in the shell, the first rotating shaft is provided with a plurality of fan blades arranged at equal intervals along its circumference, the plurality of fan blades are distributed radially, and the output shaft of the motor is drivingly connected to the first rotating shaft.

3. A sheep grass seed screening machine according to claim 2, characterized in that: The eccentric wheel mechanism includes two second rotating shafts, both of which are rotatably connected to the frame and are respectively arranged below the two ends of the screen. Eccentric wheels are fixed at both ends of each second rotating shaft, and the eccentric wheels are in contact with the bottom of the screen. The output shaft of the motor is drivingly connected to the two second rotating shafts.

4. A sheep grass seed screening machine according to claim 3, characterized in that: The output shaft of the motor is connected to the first rotating shaft, the two second rotating shafts and the stirring shaft through a belt drive.

5. The sieving machine for Leymus chinensis seeds according to claim 3, characterized in that: The motor is a speed-adjustable motor.

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