Combined multi-stage grain screening equipment

Abstract

The utility model belongs to the technical field of grain screening, and particularly relates to combined type multi-stage grain screening equipment which comprises a supporting frame, and a first screening mechanism and a second screening mechanism are arranged on the supporting frame. By arranging the first screening mechanism and the second screening mechanism, multi-stage screening is achieved, the first screening mechanism conducts preliminary screening on grains and removes most impurities, the second screening mechanism conducts further screening on the grains through rotation of the roller, and the fine and comprehensive screening effect is guaranteed; and a screening mode combining vibration and rotation is adopted, so that the screening efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to grain screening technical field especially relates to a combined multistage grain screening equipment. BACKGROUND

[0002] In the production and processing of grain, screening and removing impurities is an essential cleaning process, which needs to screen out impurities and mildewed grains mixed in the grain to ensure the better quality of the grain.

[0003] The existing grain screening equipment has certain defects when screening the grain, and the existing screening equipment generally adopts a single screening method, which is difficult to achieve sufficient screening of the grain and difficult to remove most impurities, and cannot ensure the detail and comprehensiveness of the screening effect.

[0004] In view of the above technical defects, a solution is proposed. UTILITY MODEL CONTENT

[0005] The utility model discloses a combined multistage grain screening equipment, which realizes multistage screening by setting a first screening mechanism and a second screening mechanism, ensures the detail and comprehensiveness of the screening effect, significantly improves the cleanliness of the grain, adopts a screening method combining vibration and rotation, greatly improves the screening efficiency, and solves the problems in the background art.

[0006] The utility model discloses a combined multistage grain screening equipment, which realizes multistage screening by setting a first screening mechanism and a second screening mechanism, ensures the detail and comprehensiveness of the screening effect, significantly improves the cleanliness of the grain, adopts a screening method combining vibration and rotation, greatly improves the screening efficiency, and solves the problems in the background art.

[0007] The first screening mechanism comprises a connecting arm fixedly connected with one side of the end part of the supporting frame, a screening box is arranged on the connecting arm, a feeding port is formed in the screening box, a screening plate extending towards the supporting frame is fixedly connected to the inner wall of the screening box, and a receiving hopper one is fixedly installed through the upper surface of the screening box and penetrated.

[0008] The second screening mechanism comprises a connecting shaft rotationally connected with the supporting frame, a roller is fixedly connected to the connecting shaft, a receiving hopper one and a receiving hopper two for receiving materials are arranged on the roller, and a guide plate extending from the bottom side of the screening plate to the inside of the roller is arranged between the two connecting arms.

[0009] Preferably, springs are fixedly connected to the outer wall of the screening box and the bottom wall of the connecting arm, and a connecting sleeve is arranged in the mounting groove between the two springs.

[0010] Preferably, the roller is composed of a plurality of cylinder bodies, and a plurality of screening holes with different hole diameters are formed in the cylinder bodies.

[0011] Preferably, one side of the bottom of the support frame is fixedly connected with a connecting strip, one end of the first material receiving hopper is fixedly connected with the connecting strip, and the second material receiving hopper is fixed to one end of the support frame away from the screening box.

[0012] Preferably, a lower material receiving hopper is fixed to the lower surface of the screening box, and the lower material receiving hopper is in a funnel shape.

[0013] Preferably, the connecting shaft is fixedly connected with two symmetrically arranged crossbars penetrating through the connecting shaft, the two crossbars are fixedly connected with the inner wall of the roller, and helical blades arranged along the inner wall of the connecting arm are fixedly connected between the two crossbars.

[0014] The utility model discloses the beneficial effects of:

[0015] (1) the utility model discloses a first screening mechanism and second screening mechanism are set up, realized multistage screening, and the first screening mechanism carries out the preliminary screening to grain, and removes most of the impurities, and the second screening mechanism carries out further screening to grain through the rotation of the roller, and the screening effect is meticulous and comprehensive, so that the cleanliness of grain is significantly improved, and the screening mode that vibration and rotation are combined is adopted, and the screening efficiency is greatly improved.

[0016] (2) not only realizes multistage screening, but also integrates screening and conveying process, and grain particles move in the roller along with rotation through the helical blade arranged on the connecting shaft, so that the screening process is completed, and the automatic conveying of grain is realized, and the overall efficiency and automation degree of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in connection with the drawings below;

[0018] Figure 1 It is the overall structure of the utility model three-dimensional Figure 1 ;

[0019] Figure 2 It is the screening box structure schematic of the utility model Figure 1 ;

[0020] Figure 3 It is the screening box structure schematic of the utility model Figure 2 ;

[0021] Figure 4 It is the first material receiving hopper structure schematic of the utility model;

[0022] Figure 5 It is the overall structure of the utility model three-dimensional Figure 2 .

[0023] Legend: 1, support frame; 2, roller; 3, connecting arm; 4, screening box; 5, receiving hopper one; 6, screening plate; 7, feed inlet; 8, connecting sleeve; 9, spring; 10, lower hopper; 11, guide plate; 12, connecting strip; 13, connecting shaft; 14, receiving hopper two; 15, spiral blade; 16, cross. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment one: the embodiment is used to solve the problem that the existing screening equipment generally adopts a single screening mode, it is difficult to achieve sufficient screening of grain, it is difficult to remove most impurities, and it is difficult to ensure the detail and comprehensiveness of the screening effect.

[0026] Please refer to Figure 1 - Figure 5 As shown in the figure, the embodiment is a combined multi-stage grain screening equipment, which comprises a support frame 1, and a first screening mechanism and a second screening mechanism are arranged on the support frame 1.

[0027] The first screening mechanism comprises a connecting arm 3 fixedly connected to one side of the end portion of the support frame 1, a screening box 4 arranged on the connecting arm 3, a feed inlet 7 formed in the screening box 4, and a vibration motor fixedly installed on one side of the bottom of the screening box 4. The grain is added from the feed inlet 7, the vibration motor at the bottom of the support frame 1 is started, the whole screening box 4 vibrates to preliminarily screen the grain falling on the screening plate 6, and the impurities are preliminarily removed. The screening plate 6 extending towards the support frame 1 is fixedly connected to the inner wall of the screening box 4, the receiving hopper one 5 is fixedly installed through the upper surface of the screening box 4, the receiving hopper one 5 is started, the dust generated by the vibration screening can be discharged through negative pressure, and part of the flocculent objects can be discharged, the dust bag at the top end of the receiving hopper one 5 is connected, and part of the impurities can be conveniently concentrated and treated.

[0028] The second screening mechanism comprises a connecting shaft 13 rotationally connected with the support frame 1, the upper surface of the support frame 1 is provided with a bearing seat for rotationally connecting the connecting shaft 13, the connecting shaft 13 is fixedly connected with the roller 2, the connecting shaft 13 is rotationally driven by a speed reducer motor and a belt, when the connecting shaft 13 rotates, the roller 2 can be driven to rotate, the roller 2 is provided with a first material receiving hopper 5 and a second material receiving hopper 14 for receiving materials, the two connecting arms 3 are provided with a guide plate 11 located at one side of the bottom of the screening plate 6 and extending into the roller 2, the screened grain in the screening plate 6 falls into the roller 2 along the guide plate 11 and is subjected to re-screening by the rotation of the roller 2.

[0029] The outer wall of the screening box 4 and the bottom wall of the connecting arm 3 are fixedly connected with springs 9, the mounting grooves on the springs 9 are circular grooves, which facilitate the clamping of the connecting sleeve 8, the connecting sleeve 8 is arranged in the mounting groove between the two springs 9, and the screening box 4 can be fully vibrated by arranging the connecting sleeve 8, so as to realize the preliminary impurity removal of the grain.

[0030] The roller 2 is composed of a plurality of cylinder bodies, the plurality of cylinder bodies are provided with screening holes with different diameters, the diameters of the plurality of cylinder bodies gradually increase from the direction of the screening box 4 by being spliced, and different sizes of grains can be screened.

[0031] The bottom side of the support frame 1 is fixedly connected with a connecting strip 12, the end of the first material receiving hopper 5 is fixedly connected with the connecting strip 12, the second material receiving hopper 14 is fixed to the end of the support frame 1 away from the screening box 4, a plurality of first material receiving hoppers 5 are arranged at the bottom of the corresponding cylinder body, and the discharge port direction of the first material receiving hopper 5 can be adjusted according to actual conditions, so that the screened grain can be collected in different directions and positions.

[0032] The lower surface of the screening box 4 is fixedly connected with a discharge hopper 10, the discharge hopper 10 is in the form of a funnel, the bottom of the screening box 4 is provided with an opening in communication with the discharge hopper 10, and the discharge hopper 10 can collect, concentrate and discharge the waste after preliminary screening.

[0033] Embodiment two: the embodiment is used to solve the problem of how to improve the overall efficiency and automation strength of the equipment.

[0034] Please refer to Figure 1 - Figure 5As shown, the combined multi-stage grain screening device of the embodiment, the connecting shaft 13 is fixedly connected with two symmetrical crossbars 16, the two crossbars 16 are fixedly connected with the inner wall of the drum 2, the two crossbars 16 are fixedly connected with the spiral blade 15 arranged along the inner wall of the connecting arm 3, when the connecting shaft 13 rotates to drive the drum 2 to rotate, the grain particles move along the spiral blade 15 from one side of the screening box 4 to one side of the receiving hopper two 14, so that the grain is screened in the drum 2, and finally the larger grain particles are discharged through the terminal receiving hopper two 14, which not only completes the screening process, but also realizes the automatic conveying of the grain, improves the overall efficiency and automation degree of the equipment.

[0035] Combining embodiment one and embodiment two

[0036] By setting the first screening mechanism and the second screening mechanism, multi-stage screening is realized, the first screening mechanism preliminarily screens the grain, and removes most of the impurities, and the second screening mechanism further screens the grain through the rotation of the drum 2, so that the screening effect is meticulous and comprehensive, and the cleanliness of the grain is significantly improved. The screening mode combining vibration and rotation greatly improves the screening efficiency, not only realizes multi-stage screening, but also integrates screening and conveying process, and the grain particles move in the drum 2 along with the rotation through the spiral blade 15 arranged on the connecting shaft 13, which not only completes the screening process, but also realizes the automatic conveying of the grain, improves the overall efficiency and automation degree of the equipment.

[0037] As Figure 1 - Figure 5 The working process and principle of the utility model are as follows:

[0038] Step one, start the vibration motor located at one side of the bottom of the screening box 4, and add the grain particles that need to be screened into the feeding port 7, the grain particles fall on the screening plate 6 for preliminary screening treatment, and are preliminarily removed under the action of the receiving hopper one 5, the grain particles move along the screening plate 6 to the guide plate 11, and flow along the guide plate 11 to the drum 2.

[0039] Step two, start the speed reducer located at one side of the supporting frame 1, the speed reducer drives the connecting shaft 13 to rotate through the belt, the grain particles move along the spiral blade 15 from one side of the screening box 4 to one side of the receiving hopper two 14 along with the rotation of the drum 2, so that the grain is screened in the drum 2, and finally the larger grain particles are discharged through the terminal receiving hopper two 14.

[0040] The above merely illustrates and describes the structure of the present application, and those skilled in the art can make various modifications, additions or substitutions to the specific embodiments described or use similar ways to replace, as long as the modifications, additions or substitutions do not deviate from the structure of the present application or exceed the scope defined by the claims, and should be within the protection scope of the present application.

[0041] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A combined multi-stage grain screening apparatus comprising a support frame (1), characterized in that, The support frame (1) is provided with a first screening mechanism and a second screening mechanism; The first screening mechanism comprises a connecting arm (3) fixedly connected to one side of the end of the support frame (1), a screening box (4) is arranged on the connecting arm (3), an inlet (7) is formed in the screening box (4), a screening plate (6) extending towards the support frame (1) is fixedly connected to the inner wall of the screening box (4), and a receiving hopper (5) is fixedly installed on the upper surface of the screening box (4) and penetrates the screening box (4). The second screening mechanism comprises a connecting shaft (13) rotationally connected to the support frame (1), a roller (2) is fixedly connected to the connecting shaft (13), the roller (2) is provided with a receiving hopper (5) and a receiving hopper (14) for receiving materials, and a guide plate (11) extending into the roller (2) is arranged between the two connecting arms (3) on one side of the bottom of the screening plate (6).

2. A combined multi-stage grain screening apparatus according to claim 1, characterized in that, The outer wall of the screening box (4) and the bottom wall of the connecting arm (3) are fixedly connected with springs (9), and a connecting sleeve (8) is arranged in the mounting groove between the two springs (9).

3. The combined multi-stage grain screening apparatus according to claim 1, characterized in that, The roller (2) is composed of a plurality of cylinder bodies, and a plurality of screening holes with different hole diameters are formed in the cylinder bodies.

4. The modular multi-stage grain screening apparatus of claim 1, wherein, The bottom of the support frame (1) is fixedly connected with a connecting strip (12), the end of the receiving hopper (5) is fixedly connected with the connecting strip (12), and the receiving hopper (14) is fixed to the end of the support frame (1) away from the screening box (4).

5. The combined multi-stage grain screening apparatus according to claim 1, wherein, The lower surface of the screening box (4) is fixedly connected with a lower hopper (10), and the lower hopper (10) is in the form of a funnel.

6. The modular multi-stage grain screening apparatus of claim 1, wherein, The connecting shaft (13) is fixedly connected with two symmetrical crossbars (16) penetrating the connecting shaft (13), the two crossbars (16) are fixedly connected with the inner wall of the roller (2), and a spiral blade (15) is fixedly connected between the two crossbars (16) along the inner wall of the connecting arm (3).

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