Rotary screen for seed screening

Abstract

The utility model provides a rotary screen for seed screening, which comprises a support frame, a screening component arranged at the top of the support frame, a soil cleaning component arranged at the top of the screening component, a driving component arranged on the outer surface of one end of the screening component, and a blanking hopper fixedly arranged on the outer surface of the top of one end of the support frame, the material receiving box is installed on the outer surface of the bottom of the screening assembly, the screening assembly comprises a screening cylinder, the screening cylinder is movably installed on the outer surface of the top of the supporting frame, a plurality of screening holes are formed in the surface of the screening cylinder, the soil cleaning assembly comprises a rotating cylinder, the rotating cylinder is movably installed on the top of the screening cylinder, and a push rod is movably connected to the surface of the rotating cylinder. According to the rotary screen for seed screening, the soil cleaning assembly is arranged at the top of the screening assembly, the driving assembly drives the soil cleaning assembly to rotate to push out soil accumulated in the screening cylinder while the screening assembly rotates, and the situation that the soil blocks the interior of the screening assembly and influences the screening performance of the screening assembly is prevented.

Description

Technical Field

[0001] The utility model relates to the field of drum screens, in particular to a drum screen for seed screening. Background Art

[0002] The drum screen is a widely used machine in sorting technology. It controls the garbage sorting by the particle size. It has high sorting accuracy. The drum screen is generally divided into several sections, depending on the specific situation. The sieve holes are arranged from small to large, and the sieve holes on each section have the same aperture.

[0003] The patent application with prior art publication number CN218637926U collects soil and dust through a vacuum cleaner, thereby avoiding the scattering of dust and effectively reducing the presence of dust during screening. However, there is still a small amount of dust and mud remaining in the filter holes, which will cause the filter holes to be blocked for a long time, thereby affecting the screening performance of the drum screen.

[0004] Therefore, it is necessary to provide a seed screening drum screen to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model provides a drum screen for seed screening, which solves the problem that mud is easily accumulated in the existing filter holes for a long time, causing blockage and affecting the screening performance.

[0006] In order to solve the above technical problems, the utility model provides a seed screening drum screen, comprising: a support frame, a screening assembly is arranged on the top of the support frame;

[0007] A soil cleaning assembly, the soil cleaning assembly being arranged on top of the screening assembly;

[0008] A driving assembly, the driving assembly being arranged on an outer surface of one end of the screening assembly;

[0009] A lower hopper, the lower hopper is fixedly mounted on the outer surface of the top of one end of the support frame;

[0010] A material receiving box is installed on the outer surface of the bottom of the screening assembly.

[0011] Preferably, the screening assembly comprises a screening cylinder, the screening cylinder is movably mounted on the outer surface of the top of the support frame, and a plurality of screening holes are formed on the surface of the screening cylinder.

[0012] Preferably, the soil cleaning assembly comprises a rotating drum, which is movably mounted on the top of the screening drum, and a push rod is movably connected to the surface of the rotating drum.

[0013] Preferably, one end of the push rod is fixedly connected to a spring, the spring is movably installed inside the drum, and the outer surface of the drum is movably embedded inside the screening hole.

[0014] Preferably, the driving assembly comprises a driving motor, and the driving motor is fixedly connected to the outer surface of one end of the screening drum.

[0015] Preferably, a transmission belt is fixedly connected to the outer surface of the driving motor, and one end of the top of the transmission belt is fixedly connected to one end of the rotating drum.

[0016] Preferably, a splicing assembly is provided on the outer surface of the screening cylinder, and the splicing assembly includes a splicing plate, and the splicing plate is fixedly mounted on the outer surface of the screening cylinder, and a threaded plate is fixedly connected to the outer surface of the screening cylinder.

[0017] Compared with the related art, the seed screening drum screen provided by the utility model has the following beneficial effects:

[0018] The utility model provides a drum screen for seed screening. A soil cleaning component is arranged on the top of the screening component. When the screening component rotates, the driving component drives the soil cleaning component to rotate to push out the soil accumulated inside the screening drum, thereby preventing the soil from clogging the inside of the screening component and affecting its screening performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a first embodiment of a seed screening drum screen provided by the utility model;

[0020] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0021] Figure 3 This is a schematic structural diagram of a second embodiment of a seed screening drum screen provided by the utility model.

[0022] Numbers in the figure: 1. Support frame,

[0023] 2. Screening assembly, 21. Screening cylinder, 22. Screening hole,

[0024] 3. Soil cleaning assembly, 31. Rotating drum, 32. Push rod, 33. Spring,

[0025] 4. Driving assembly, 41. Driving motor, 42. Transmission belt,

[0026] 5. Lower hopper,

[0027] 6. Material receiving box,

[0028] 7. Splicing assembly, 71. Splicing plate, 72. Threaded plate. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0030] First embodiment

[0031] Please refer to Figure 1 and Figure 2 ,in, Figure 1 A schematic structural diagram of a first embodiment of a seed screening drum screen provided by the utility model; Figure 2 for Figure 1 The enlarged schematic diagram of part A is shown. A drum screen for seed screening comprises: a support frame 1, a screening assembly 2 is arranged on the top of the support frame 1;

[0032] A soil cleaning component 3, wherein the soil cleaning component 3 is arranged on the top of the screening component 2;

[0033] A driving assembly 4, wherein the driving assembly 4 is arranged on the outer surface of one end of the screening assembly 2;

[0034] A lower hopper 5, the lower hopper 5 is fixedly mounted on the outer surface of the top of one end of the support frame 1;

[0035] The material receiving box 6 is installed on the outer surface of the bottom of the screening component 2.

[0036] The function of the screening component 2 is to screen seeds and impurities by rotating. The function of the soil cleaning component 3 is to clean the dust inside the screening component 2 to prevent it from causing blockage. The function of the driving component 4 is to drive the screening component 2 and the soil cleaning component 3 to rotate. The top of the lower hopper 5 is conical in shape, which is conducive to feeding. The receiving box 6 is used to receive and store impurities.

[0037] The screening assembly 2 includes a screening drum 21 , which is movably mounted on the outer surface of the top of the support frame 1 , and a plurality of screening holes 22 are formed on the surface of the screening drum 21 .

[0038] Two plates are fixedly installed at the left and right ends of the top of the support frame 1, and the left and right ends of the screening cylinder 21 rotate the surfaces of the two plates respectively. The screening holes 22 array is opened on the surface of the screening cylinder 21 and is conical, gradually expanding from the inside to the outside.

[0039] The soil cleaning assembly 3 includes a rotating drum 31 , which is movably mounted on the top of the screening drum 21 , and a push rod 32 is movably connected to the surface of the rotating drum 31 .

[0040] The left and right ends of the rotating drum 31 are respectively rotatably connected to the surfaces of the two plates at the top of the support frame 1 near the top, and the push rod 32 array is connected to the surface of the rotating drum 31, and one end is movably embedded in the interior of the rotating drum 31, and the other end is conical, and the ends of the two push rods 32 embedded in the interior of the rotating drum 31 are connected by springs 33, and under the elastic force of the springs 33.

[0041] One end of the push rod 32 is fixedly connected to a spring 33 , and the spring 33 is movably installed inside the drum 31 . The outer surface of the drum 31 is movably embedded inside the screening hole 22 .

[0042] When the push rod 32 is at the top of the screening hole 22, the elastic force of the spring 33 pushes the push rod 32 embedded in the inner part of the screening hole 22 to push out the soil inside the screening hole 22. The screening holes 22 and (23) are set to a conical shape, which helps the push rod 32 to enter and move out of the interior of the screening hole 22.

[0043] The driving assembly 4 includes a driving motor 41 , and the driving motor 41 is fixedly connected to the outer surface of one end of the screening drum 21 .

[0044] The rotating shaft in the driving motor 41 is fixedly connected to the center of the right end of the screening drum 21 , and the transmission belt 42 is composed of a large and a small gear connected by a gear belt meshing, and the larger gear is fixedly connected to the outer surface of the rotating shaft in the driving motor 41 .

[0045] A transmission belt 42 is fixedly connected to the outer surface of the driving motor 41 , and one end of the top of the transmission belt 42 is fixedly connected to one end of the rotating drum 31 .

[0046] The small gear in the transmission belt 42 is fixedly connected to the top of the large gear, and one end is fixedly connected to a commutator, and the other end of the commutator is fixedly connected to the right end of the rotating drum 31, thereby driving the rotating drum 31 and the screening drum 21 to rotate in opposite directions.

[0047] The working principle of a seed screening drum screen provided by the utility model is as follows:

[0048] First, pour the seeds into the interior of the screening drum 21 through the lower hopper 5, and then start the drive motor 41 to drive the screening drum 21 to rotate, so that the impurities inside it are thrown out to the outside of the screening drum 21 and fall into the interior of the receiving box 6. In this process, the drive motor 41 is transmitted through the transmission belt 42 and connected to the commutator to drive the rotating drum 31 and the screening drum 21 to rotate in the opposite direction. When the spring 33 rotates to the position of the screening hole 22, the elastic force of the spring 33 pushes the push rod 32 embedded in the screening hole 22 to push out the soil inside the screening hole 22.

[0049] Compared with the related art, the seed screening drum screen provided by the utility model has the following beneficial effects:

[0050] The utility model provides a drum screen for seed screening, wherein a soil cleaning component 3 is arranged on the top of a screening component 2, and when the screening component 2 rotates, the soil cleaning component 3 is driven to rotate by a driving component 4 to push out the soil accumulated inside the screening drum 21, so as to prevent the soil from clogging the inside of the screening component 2 and affecting its screening performance.

[0051] Second embodiment

[0052] Please refer to Figure 3 Based on the seed screening drum screen provided in the first embodiment of the present application, the second embodiment of the present application provides another seed screening drum screen. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0053] Specifically, the difference of the seed screening drum screen provided in the second embodiment of the present application is that, in the seed screening drum screen, the outer surface of the screening drum 21 is provided with a splicing assembly 7, and the splicing assembly 7 includes a splicing plate 71, and the splicing plate 71 is fixedly installed on the outer surface of the screening drum 21, and the outer surface of the screening drum 21 is fixedly connected with a threaded plate 72.

[0054] Both ends of each screening cylinder 21 are provided with an array of grooves of the same size and number as the splicing plates 71, and threaded holes are provided inside the grooves. The splicing plates 71 at both ends of two adjacent screening cylinders 21 can be inserted into the interior of each groove, and the threaded holes on the splicing plates 71 coincide with the threaded holes inside the grooves. Then, bolts are threaded into the interior of the two holes to fix the splicing plates 71 inside the grooves. When the splicing plates 71 are fixed inside each groove, the threaded plates 72 on the two adjacent screening cylinders 21 coincide with each other, and then the two threaded plates 72 can be fixed using bolts.

[0055] The working principle of a seed screening drum screen provided by the utility model is as follows:

[0056] The splicing plates 71 on one end of two adjacent screening cylinders 21 are fixed by bolts, and then the bolts on the threaded plate 72 are tightened to complete the splicing of the two screening cylinders 21 .

[0057] Compared with the related art, the seed screening drum screen provided by the utility model has the following beneficial effects:

[0058] The utility model provides a drum screen for seed screening, which divides the screening cylinder 21 and fixes it with a splicing plate 71 and a threaded plate 72. When the screening cylinder 21 is damaged, only the damaged part needs to be disassembled and replaced, which saves maintenance costs and facilitates installation and disassembly.

[0059] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drum screen for seed screening, characterized in that: include: A support frame, wherein a screening assembly is arranged on the top of the support frame, wherein the screening assembly comprises a screening cylinder, wherein the screening cylinder is movably mounted on the outer surface of the top of the support frame, and a plurality of screening holes are opened on the surface of the screening cylinder; A soil cleaning assembly, the soil cleaning assembly is arranged on the top of the screening assembly, the soil cleaning assembly comprises a rotating drum, the rotating drum is movably mounted on the top of the screening drum, a push rod is movably connected to the surface of the rotating drum, one end of the push rod is fixedly connected to a spring, the spring is movably mounted inside the rotating drum, and the outer surface of the rotating drum is movably embedded inside the screening hole; A driving assembly, the driving assembly being arranged on an outer surface of one end of the screening assembly; A lower hopper, the lower hopper is fixedly mounted on the outer surface of the top of one end of the support frame; A material receiving box is installed on the outer surface of the bottom of the screening assembly.

2. A seed screening drum screen according to claim 1, characterized in that: The driving assembly comprises a driving motor, and the driving motor is fixedly connected to the outer surface of one end of the screening drum.

3. A seed screening drum screen according to claim 2, characterized in that: A transmission belt is fixedly connected to the outer surface of the driving motor, and one end of the top of the transmission belt is fixedly connected to one end of the rotating drum.

4. A seed screening drum screen according to claim 1, characterized in that: The outer surface of the screening cylinder is provided with a splicing assembly, and the splicing assembly includes a splicing plate, and the splicing plate is fixedly installed on the outer surface of the screening cylinder, and the outer surface of the screening cylinder is fixedly connected with a threaded plate.

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