Pretreatment screening device for crop processing

Abstract

The invention provides a pretreatment screening device for crop processing. A baffle penetrates through the upper end of a bottom plate and is vertically arranged, sliding blocks are located on the two sides of the upper end of the baffle, the interval between the lower end of the baffle and the upper end of the bottom plate is 5-10 cm, a push rod inclines upwards by 25-45 degrees, and the side, away from the sliding blocks, of the push rod obliquely swings in the direction perpendicular to a rotating shaft. The rotating shaft slides in the inclined direction at the lower end of the inclined plate, the sliding block can be further assisted to slide back and forth in the transverse rod in the horizontal direction, the sliding distance of the sliding block is increased, the sliding block can slide synchronously with the baffle in the reciprocating sliding process, and therefore the baffle can assist crops stacked at the upper end of the bottom plate. The lower end of the baffle and the upper end of the bottom plate roll to the upper end of the screening frame at intervals, meanwhile, the situation that crops are stacked at the upper end of the screening frame, and consequently the screening frame cannot screen the crops rapidly can be avoided, and therefore vibration generated by the base is used for forming uniform discharging and screening on the crops.

Description

Technical Field

[0001] The invention relates to the technical field of separating solid from solid, and in particular to a pre-treatment screening device for crop processing. Background Art

[0002] After the crops are harvested, they need to be pre-processed by a screening device to facilitate the classification of crops of different sizes. The screening device includes a frame, a mounting frame, a vibration mechanism, a first screening layer and a second screening layer. The vibration mechanism includes a motor, a transmission mechanism and an eccentric wheel. The motor drives the screening device to vibrate through the eccentric wheel. First, the screened crops are placed on the screening plate through the feed hopper, and some crops enter the second screening layer. Technical inspiration for the screening device; Research on the screening device revealed the following problems: The screening device screens the crops through the screening layer. Since the screening device needs to screen a large number of crops at a time, the crops tend to accumulate on the upper end of the screening layer, which causes the screening device to vibrate for a long time to screen the crops, and thus causes the screening device to be unable to form a uniform discharge of the crops before screening. At the same time, the inside of the screening layer is prone to blockage during the screening process, resulting in the need to regularly clean the inside of the screening layer. At present, CN202210874449.5 in the prior art discloses a centrifugal screening device for crop germplasm resources, which is arranged in the upper end port of the main body. The funnel is coaxial with the main body, and the funnel is provided with a feeding mechanism; a No. 1 filter is arranged on the outside of the main body. The centrifugal screening device for crop germplasm resources and the screening method are provided with a grading screening mechanism. Since a motor, a rotating shaft and a cylinder are provided, the cylinder can be driven to rotate by the motor, so that the germplasm resources inside the cylinder pass through the mesh holes under the action of centrifugal force and enter different cavities to complete the screening. In addition, the parameters of its internal components are easy to adjust, and the elasticity of the spring and the size of the mesh holes can be replaced according to different situations, so as to obtain different screening effects, and screen germplasm resources of different masses and volumes, thereby increasing practicality. The present invention can mainly solve the problem that the screening device cannot form uniform material discharge for crops before screening. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a pretreatment screening device for crop processing to solve the problems described in the above background technology.

[0004] The purpose and efficacy of the pretreatment and screening device for crop processing of the present invention are achieved by the following specific technical means: a pretreatment and screening device for crop processing, comprising a base, motors are provided on both sides of the lower end of the base, a bottom plate is provided on one side of the upper end of the base, a support frame is installed on the other side of the upper end of the base, and a screening frame is provided on the upper end of the support frame.

[0005] Furthermore, the motor is connected to the power supply circuit via a power supply line, and an eccentric wheel is rotatably arranged at one end of the motor, so that the motor can drive the entire base to vibrate conveniently via the eccentric wheel.

[0006] Furthermore, springs are provided at the four corners of the base, and the upper end of the base is arranged horizontally.

[0007] Furthermore, the bottom plate and the screening frame are arranged at the upper end of the base, and the screening frame is horizontally arranged in 2-3 groups. The screening frame has holes running through the inside, and the screening frame is matched with the supporting frame.

[0008] Furthermore, a slide groove is provided inside the support frame, and a protrusion is slidably connected inside the slide groove, and the protrusion slides in a horizontal direction inside the slide groove.

[0009] Furthermore, the base is provided with a cross bar at the upper end near the bottom plate, a slider is slidably connected inside the cross bar, a baffle is provided at the lower end of the slider, push rods are slidably connected on both sides of the baffle, the end of the push rod away from the baffle is rotatably connected to a rotating shaft, inclined plates are respectively provided inside the cross bar near the upper end of the push rod, a clamping plate is slidably connected to the inner side of the inclined plate, and the rotating shaft slides on the inner side of the inclined plate.

[0010] Furthermore, a groove is provided inside the crossbar, and the slider slides inside the groove. The slider slides in a horizontal direction as a whole, and the crossbar passes through the upper end of the base.

[0011] Furthermore, the baffle runs through the upper end of the bottom plate, the baffle is arranged vertically, the sliders are located on both sides of the upper end of the baffle, and the lower end of the baffle is 5-10 cm away from the upper end of the bottom plate.

[0012] Furthermore, the push rod is tilted upward by 25-45 degrees, and the side of the push rod away from the slider is tilted and swung in a vertical direction to the rotating shaft, and the rotating shaft slides in an inclined direction at the lower end of the inclined plate.

[0013] Furthermore, the side of the push rod away from the slider is tilted and swung in a vertical direction to the rotating shaft. When the slider slides in a horizontal direction, the slider can drive the rotating shaft to slide obliquely on the inner side of the inclined plate through the push rod.

[0014] Furthermore, the abutment plate is located at the upper end of the rotating shaft, and the weight of the abutment plate is 300-500g greater than the weight of the rotating shaft.

[0015] Furthermore, the inclined plate is inclined at 45° and is located on both sides of the sliding block.

[0016] Furthermore, a curved ring is provided on one side of the protrusion away from the support frame, and the upper end of the curved ring is slidably connected to a top plate.

[0017] Furthermore, the protrusion is matched with the curved ring, the curved ring is arranged in a vertical direction, the arc angle of the curved ring is 90-120°, and when the top plate does not slide upward, the top plate is below the hole of the screening frame.

[0018] Furthermore, the top plate slides vertically through the holes of the screening frame, and the curved rings, protrusions and top plates are grouped in pairs, and the top plates are pressed against each other.

[0019] Beneficial effects: 1. When the base is screening crops, the base is in a vibrating state. The slider slides back and forth in the horizontal direction inside the crossbar by utilizing the vibration. When the slider slides, the push rod drives the rotating shaft to slide upward on the inner side of the inclined plate. The rotating shaft can be pressed upward to the lower end of the abutting plate, and the abutting plate slides upward on the inner side of the inclined plate. 2. Since the slider slides back and forth in the horizontal direction, the gravity of the pressing plate sliding downward can be used to squeeze the pressing plate back to the upper end of the rotating shaft. The rotating shaft drives the slider back to its original position through the push rod, which can further assist the slider to slide back and forth in the horizontal direction inside the cross bar, thereby increasing the sliding distance of the slider. The slider can slide the baffle synchronously during the reciprocating sliding process, so the baffle can assist the crops accumulated on the upper end of the bottom plate to roll to the upper end of the screening rack through the gap between the lower end of the baffle and the upper end of the bottom plate, and at the same time, it can prevent the crops from accumulating on the upper end of the screening rack, resulting in the screening rack being unable to quickly screen the crops, thereby utilizing the vibration generated by the base to evenly screen the crops; 3. Utilize the vibration generated by the base, and make the width of the slide groove larger than the width of the protrusion, so that the protrusion can slide horizontally inside the slide groove, and when the protrusion slides, the curved ring can be driven to slide horizontally; 4. When the curved rings on both sides of the lower end of the screening frame slide toward the middle at the same time, since the curved rings are arranged in a vertical direction and the arc angle of the curved rings is 90-120°, the curved rings can slide upward, and the curved rings can drive the top plate to slide toward the inside of the holes of the screening frame. At this time, the top plate can clear the holes inside the screening frame to avoid blockage of the holes inside the screening frame during the screening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall explosion structure of the present invention.

[0022] Figure 3 It is a bottom view schematic diagram of the cross bar of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the slider assembly of the present invention.

[0024] Figure 5 It is an exploded schematic diagram of the slider assembly of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the screening rack assembly of the present invention.

[0026] Figure 7 It is an exploded schematic diagram of the screening rack assembly of the present invention.

[0027] Figure 8 It is a partial schematic diagram of the support frame of the present invention.

[0028] Figure 1-8 In the figure, the corresponding relationship between the component names and the figure numbers is as follows: 1-base, 101-motor, 102-bottom plate, 103-screening frame, 104-support frame, 2-cross bar, 201-slider, 202-baffle, 203-push rod, 204-rotating shaft, 3-inclined plate, 301-tightening plate, 4-bump, 401-curved ring, 402-top plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0030] As attached Figure 1 To Attachment Figure 8 As shown: Embodiment 1: A pre-processing and screening device for crop processing, comprising a base 1, a motor 101 is provided on both sides of the lower end of the base 1, a bottom plate 102 is provided on one side of the upper end of the base 101, a support frame 104 is installed on the other side of the upper end of the base 101, and a screening frame 103 is provided on the upper end of the support frame 104; Wherein: the motor 101 is connected to the power supply circuit through a power line, and an eccentric wheel is arranged at one end of the motor 101 for rotation, so that the motor 101 can drive the base 1 to vibrate as a whole through the eccentric wheel; Springs are provided at the four corners of the base 1, and the upper end of the base 1 is arranged in a horizontal manner; The bottom plate 102 and the screening rack 103 are arranged at the upper end of the base 1. The screening rack 103 is arranged horizontally in 2-3 groups. The screening rack 103 has holes running through it. The screening rack 103 is matched with the support frame 104. The support frame 104 has a slide groove inside, and a protrusion 4 is slidably connected inside the slide groove. The protrusion 4 slides horizontally inside the slide groove. Figure 7 and 8 As shown; The width of the slide groove is greater than the width of the protrusion 4, so that the protrusion 4 can slide horizontally inside the slide groove; The crops are dumped to the upper end of the base 1, and the crops are dumped to the upper end of the bottom plate 102 simultaneously. The motor 101 drives the base 1 to vibrate as a whole through the eccentric wheel, and the crops can roll toward the upper end of the screening frame 103, and then the crops are screened through the internal holes of the screening frame 103. After screening, the crops fall to the lower end of the base 1 respectively; Example 2: Refer to the attached manual Figure 1-5 It can be known that the difference between Example 2 and Example 1 is that a cross bar 2 is provided at the upper end of the base 1 near the bottom plate 102, a slider 201 is slidably connected inside the cross bar 2, a baffle 202 is provided at the lower end of the slider 201, push rods 203 are slidably connected on both sides of the baffle 202, and one end of the push rod 203 away from the baffle 202 is rotatably connected to a rotating shaft 204, and an inclined plate 3 is provided at the upper end of the cross bar 2 near the push rod 203, and a pressing plate 301 is slidably connected to the inner side of the inclined plate 3, and the rotating shaft 304 slides on the inner side of the inclined plate 3; Wherein: a groove is provided inside the crossbar 2, and the slider 201 slides inside the groove, and the slider 201 slides in a horizontal direction as a whole, and the crossbar 2 passes through the upper end of the base 1; The baffle 202 penetrates the upper end of the bottom plate 102, and the baffle 202 is arranged vertically. The sliders 201 are located on both sides of the upper end of the baffle 202, and the lower end of the baffle 202 is spaced 5-10 cm from the upper end of the bottom plate 102; The slider 201 as a whole drives the baffle 202 to slide in the horizontal direction. When the baffle 202 slides in the horizontal direction, the baffle 202 can form a uniform discharge for the crops on one side of the bottom plate 102, thereby preventing the crops from piling up and rolling to the upper end of the screening rack 103; The push rod 203 is tilted upward by 25-45 degrees, and the side of the push rod 203 away from the slider 201 is tilted and swung vertically with the rotating shaft 204, and the rotating shaft 204 slides in an inclined direction at the lower end of the inclined plate 3; The side of the push rod 203 away from the slider 201 is tilted and swung vertically with the rotating shaft 204. When the slider 201 slides horizontally, the slider 201 drives the rotating shaft 204 to slide obliquely on the inner side of the inclined plate 3 through the push rod 203. The abutting plate 301 is located at the upper end of the rotating shaft 304, and the weight of the abutting plate 301 is greater than the weight of the rotating shaft 204 by 300-500g; The inclined plate 3 is inclined at 45°, and the inclined plate 3 is located on both sides of the slider 201; When the base 1 is used to screen crops, the base 1 is in a vibrating state. By utilizing the vibration, the slider 201 slides back and forth in the horizontal direction inside the crossbar 2. When the slider 201 slides, the push rod 203 drives the rotating shaft 204 to slide upward on the inner side of the inclined plate 3. The rotating shaft 204 can be pressed upward to the lower end of the abutting plate 301, and the abutting plate 301 slides upward on the inner side of the inclined plate 3. Since the slider 201 slides back and forth in the horizontal direction, the gravity of the pressing plate 301 sliding downward can be used to squeeze the pressing plate 301 to the upper end of the rotating shaft 204 again, and the rotating shaft 204 drives the slider 201 to return to its original position through the push rod 203, thereby further assisting the slider 201 to slide back and forth in the horizontal direction inside the cross bar 2, thereby increasing the sliding distance of the slider 201. The slider 201 can slide the baffle 202 synchronously during the reciprocating sliding process, so the baffle 202 can assist the crops accumulated on the upper end of the bottom plate 102 to roll to the upper end of the screening rack 103 through the lower end of the baffle 202 and the upper end of the bottom plate 102. At the same time, it can prevent the crops from being accumulated on the upper end of the screening rack 103, resulting in the screening rack 103 being unable to quickly screen the crops, thereby utilizing the vibration generated by the base 1 to form a uniform material screening for the crops; Example 3: Refer to the attached manual Figure 2 , 6 -8 It can be seen that the difference between Example 3 and Examples 1 and 2 is that a curved ring 401 is provided on the side of the protrusion 4 away from the support frame 104, and the upper end of the curved ring 401 is slidably connected to a top plate 402; Wherein: the protrusion 4 is matched with the curved ring 401, the curved ring 401 is arranged in a vertical direction, the arc angle of the curved ring 401 is 90-120°, and when the top plate 402 does not slide upward, the top plate 402 is below the hole of the screening frame 103; When the top plate 402 does not slide upward, the top plate 402 is located below the screening rack 103, so as to prevent the top plate 402 from being located inside the holes of the screening rack 103, causing the top plate 402 to affect the screening of crops through the holes of the screening rack 103; The top plate 402 slides vertically through the hole of the screening frame 103. The curved ring 401, the protrusion 4 and the top plate 402 are each grouped in pairs, and the top plates 402 are pressed against each other. Figure 8 As shown; Wherein: utilizing the vibration generated by the base 1, and the width of the slide groove is greater than the width of the protrusion 4, so that the protrusion 4 can slide horizontally inside the slide groove, and when the protrusion 4 slides, the curved ring 401 is driven to slide horizontally; When the curved rings 401 on both sides of the lower end of the screening rack 103 slide toward the middle at the same time, since the curved rings 401 are arranged in a vertical direction and the arc angle of the curved rings 401 is 90-120°, the curved rings 401 can slide upward, and the curved rings 401 can drive the top plate 402 to slide toward the inside of the holes of the screening rack 103. At this time, the top plate 402 can clear the internal holes of the screening rack 103 to avoid the situation where the holes of the screening rack 103 are blocked during the screening process.

Claims

1. A pretreatment screening device for crop processing, characterized in that: include A base (1), wherein motors (101) are provided on both sides of the lower end of the base (1), a bottom plate (102) is provided on one side of the upper end of the base (101), a support frame (104) is installed on the other side of the upper end of the base (101), and a screening frame (103) is provided on the upper end of the support frame (104); An eccentric wheel is rotatably provided at one end of the motor (101), and the motor (101) drives the base (1) to vibrate as a whole through the eccentric wheel; The bottom plate (102) and the screening frame (103) are arranged at the upper end of the base (1); the screening frame (103) is arranged in 2-3 groups in a horizontal manner; holes are penetrated inside the screening frame (103); the screening frame (103) and the supporting frame (104) are matched with each other; A slide groove is provided inside the support frame (104), and a protrusion (4) is slidably connected inside the slide groove. The protrusion (4) slides in a horizontal direction inside the slide groove.

2. The crop processing pretreatment screening device according to claim 1, characterized in that: The base (1) is provided with a cross bar (2) at the upper end near the bottom plate (102), a slider (201) is slidably connected inside the cross bar (2), a baffle (202) is provided at the lower end of the slider (201), push rods (203) are slidably connected on both sides of the baffle (202), one end of the push rod (203) away from the baffle (202) is rotatably connected to a rotating shaft (204), and inclined plates (3) are respectively provided inside the cross bar (2) near the upper end of the push rod (203), a pressing plate (301) is slidably connected to the inner side of the inclined plate (3), and the rotating shaft (304) slides on the inner side of the inclined plate (3).

3. The pretreatment screening device for crop processing according to claim 2, characterized in that: A groove is provided inside the crossbar (2), and the slider (201) slides inside the groove. The slider (201) slides in a horizontal direction as a whole, and the crossbar (2) passes through the upper end of the base (1).

4. The pretreatment screening device for crop processing according to claim 2, characterized in that: The baffle (202) passes through the upper end of the bottom plate (102), the baffle (202) is arranged vertically, the sliders (201) are located on both sides of the upper end of the baffle (202), and the lower end of the baffle (202) is spaced 5-10 cm from the upper end of the bottom plate (102).

5. The pretreatment screening device for crop processing according to claim 2, characterized in that: The push rod (203) is tilted upward at 25-45 degrees, and the side of the push rod (203) away from the slider (201) is tilted and swung in a vertical direction with respect to the rotating shaft (204), and the rotating shaft (204) slides in an inclined direction at the lower end of the inclined plate (3).

6. The pretreatment screening device for crop processing according to claim 2, characterized in that: The side of the push rod (203) away from the slider (201) tilts and swings in a vertical direction with respect to the rotating shaft (204); when the slider (201) slides in a horizontal direction, the slider (201) drives the rotating shaft (204) to slide in a tilted manner on the inner side of the inclined plate (3) through the push rod (203).

7. The pretreatment screening device for crop processing according to claim 2, characterized in that: The abutting plate (301) is located at the upper end of the rotating shaft (304), and the weight of the abutting plate (301) is 300-500 g greater than the weight of the rotating shaft (204); The inclined plate (3) is inclined at 45°, and the inclined plate (3) is located on both sides of the sliding block (201).

8. The crop processing pretreatment screening device according to claim 1, characterized in that: A curved ring (401) is provided on one side of the protrusion (4) away from the support frame (104), and a top plate (402) is slidably connected to the upper end of the curved ring (401).

9. The pretreatment screening device for crop processing according to claim 8, characterized in that: The protrusion (4) is matched with the curved ring (401), the curved ring (401) is arranged in a vertical direction, the curved ring (401) has an arc angle of 90-120 degrees, and when the top plate (402) does not slide upward, the top plate (402) is located below the hole of the screening frame (103).

10. The pretreatment screening device for crop processing according to claim 8, characterized in that: The top plate (402) slides vertically through the hole of the screening frame (103), and the curved ring (401), the protrusion (4) and the top plate (402) form a group of two, and the top plates (402) are pressed against each other.

Images