Grain processing specific gravity classifying stoner

Abstract

The utility model discloses a grain processing specific gravity classifies stone removing machine, including fixed base and vibration machine case, the bottom fixed seat no.

Description

Technical Field

[0001] This utility model relates to the field of grain equipment technology, specifically a grain processing gravity grading and destoner. Background Technology

[0002] A gravity grading destoner is a piece of equipment used in grain processing. It is primarily used to remove impurities such as sand and gravel from grains and to grade them. It utilizes the differences in specific gravity and suspension velocity between grains and impurities, achieving separation through mechanical airflow and a reciprocating screen surface. Raw grains enter through the inlet. Under the vibration of the screen surface driven by the vibrating chamber and the action of airflow, the porosity between particles increases, and the raw grains are in a fluidized state. Heavier stones sink to the bottom and contact the screen surface, while lighter grains float to the top. The grains slide down to the outlet under the influence of gravity and inertia, while the stones move towards the stone outlet.

[0003] Most gravity grading and destoning machines on the market currently use vibrating chambers supported by vertical steel or air springs, with a fixed base underneath. The vibrating chamber vibrates and grades grains under the action of a vibrating motor, with the springs acting as movable connections and supports. However, to vibrate the grains to one side, the vibrating motor is not installed horizontally but at an angle. Therefore, the vibration direction of the vibrating chamber is also tilted. In this case, the vertically mounted springs are subjected not only to vertical pressure but also to pushing and pulling forces in the tilted direction. This leads to uneven stress over time, accelerating fatigue. As the equipment is used more frequently, the stability of the springs supporting the vibrating chamber decreases significantly, affecting the uniformity of grain distribution inside, and consequently impacting the efficiency and effectiveness of grain grading. This urgently requires improvement. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a grain gravity grading and destoning machine, which solves the problem that the vertically installed spring-supported vibratory chamber of existing gravity grading and destoning machines is prone to uneven stress, leading to decreased stability of the vibratory chamber and affecting the efficiency and effect of grain grading.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A grain gravity grading and destoning machine includes a fixed base and a vibrating chamber. The vibrating chamber has a stone outlet and a grain outlet on its two sides. Vibrating motors are installed on the front and back of the vibrating chamber near the grain outlet. The height of the stone outlet is higher than that of the grain outlet. The fixed base is an L-shaped structure adapted to the shape of the vibrating chamber. A fixed seat is fixed to the bottom of the vibrating chamber on the side corresponding to the stone outlet. A limiting seat is fixed to the fixed base at the position corresponding to the fixed seat. An inflatable roller is installed inside the fixed seat and is rolledly connected to the bottom of the inner wall of the limiting seat. Limiting rollers are installed on the front and back of the fixed seat and are rolledly connected to the front and back of the inner wall of the limiting seat, respectively.

[0007] A fixed base two is fixed to the bottom of one side of the vibrating machine box corresponding to the grain outlet. A limit seat two is fixed at the position of the fixed base corresponding to the fixed base two. An air spring is movably hinged to the bottom of the inner wall of the limit seat two near both sides through a hinge seat. The upper end of the air spring is movably hinged to the fixed base two. A limit sleeve is sleeved on the surface of the air spring. Limit roller two is respectively installed on the front and back of the limit sleeve and is rollingly connected to the front and back of the inner wall of the limit seat two.

[0008] Preferably, the pneumatic rollers and the limiting seat are symmetrically arranged at the bottom of the vibration chamber.

[0009] Preferably, both the first limiting seat and the second limiting seat are fixed grooves, and both the first limiting roller and the second limiting roller are rolling bearings, with the first limiting roller being horizontally positioned.

[0010] Preferably, a pad is fixed to the bottom of the fixing seat, and a support bolt is threaded to the bottom of the limiting seat at the position corresponding to the pad.

[0011] Preferably, the two air springs located within the same limiting seat are staggered front to back, and the two sets of air springs at the bottom of the vibration chamber are symmetrically arranged front to back.

[0012] Preferably, the second limiting roller is inclined and parallel to the air spring.

[0013] Preferably, the inner wall of the limiting sleeve and the circumferential side of the air spring are provided with an movable gap.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model's vibratory feed box is supported at the bottom of the side corresponding to the vibratory motor by a figure-eight air spring, which better conforms to the tilted vibration direction of the feed box. While satisfying the damping and support effects, it also improves the support stability. The bottom of the side of the feed box away from the vibratory motor is supported by inflatable rollers, which enable it to have the effects of damping and lateral movement, adapting to the tilted vibration direction. Furthermore, limiting roller one and limiting roller two restrict the possibility of longitudinal movement of the feed box, making the vibration of the feed box stable and regular, ensuring the stability of the feed box, thereby guaranteeing the efficiency and effect of grain grading. This solves the problem of existing gravity grading and destoning machines, which use vertically installed springs to support the vibratory feed box, which is prone to uneven force distribution, leading to a decrease in the stability of the feed box and affecting the efficiency and effect of grain grading. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the limiting seat of this utility model;

[0018] Figure 3 This is a left view of the internal structure of the limiting seat of this utility model;

[0019] Figure 4 This is a partial structural diagram of the corresponding position of the limiting seat two of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the limiting seat 2 of this utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the limiting sleeve of this utility model;

[0022] Figure 7 This is a left-side view of the layout of the two sets of air springs of this utility model.

[0023] In the diagram: 1. Fixed base; 2. Vibrating machine housing; 3. Stone outlet; 4. Grain outlet; 5. Vibrating motor; 6. Fixed seat one; 7. Limiting seat one; 8. Inflatable roller; 9. Limiting roller one; 10. Fixed seat two; 11. Limiting seat two; 12. Hinge seat; 13. Air spring; 14. Limiting sleeve; 15. Limiting roller two; 16. Pad; 17. Support bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-7 As shown, this utility model provides a technical solution: a grain processing gravity grading and destoner, including a fixed base 1 and a vibrating machine box 2. The vibrating machine box 2 has a stone outlet 3 and a grain outlet 4 on both sides respectively. A vibrating motor 5 is installed on the front and back of the vibrating machine box 2 near the grain outlet 4. The height of the stone outlet 3 is higher than the height of the grain outlet 4. The fixed base 1 is an L-shaped structure adapted to the shape of the vibrating machine box 2.

[0026] A fixed seat 6 is fixed to the bottom of the vibrating machine box 2 on the side corresponding to the stone outlet 3. A limit seat 7 is fixed to the fixed base 1 at the position corresponding to the fixed seat 6. A pad 16 is fixed to the bottom of the fixed seat 6. A support bolt 17 is threaded to the bottom of the limit seat 7 at the position corresponding to the pad 16. When the equipment is regularly maintained, the pad 16 is lifted upward by the support bolt 17, thereby raising the fixed seat 6 upward. Then, the air roller 8 is rotated to adjust the angle to avoid the air roller 8 always being in contact with the limit seat 7 in the same position and being squeezed in the same position, thereby extending its service life.

[0027] An inflatable roller 8 is installed inside the fixed seat 6 and is rolledly connected to the bottom of the inner wall of the limiting seat 7. The inflatable roller 8 and the limiting seat 7 are symmetrically arranged at the bottom of the vibrating chamber 2. The front and back of the fixed seat 6 are respectively equipped with limiting rollers 9 that are rolledly connected to the front and back of the inner wall of the limiting seat 7. The limiting rollers 9 are arranged horizontally.

[0028] A fixed base 10 is fixed on the bottom side of the vibrating machine box 2 corresponding to the grain outlet 4. A limit seat 11 is fixed at the position of the fixed base 1 corresponding to the fixed base 10. Both the limit seat 1 and the limit seat 2 are fixed grooves. Air springs 13 are movably hinged to the bottom of the inner wall of the limit seat 2 near both sides through the hinge seat 12. The upper end of the air springs 13 is movably hinged to the fixed base 10. The two air springs 13 located in the same limit seat 2 are staggered front and back. The two sets of air springs 13 at the bottom of the vibrating machine box 2 are symmetrically arranged front and back.

[0029] A limiting sleeve 14 is fitted on the surface of the air spring 13. The inner wall of the limiting sleeve 14 has an movable gap with the circumferential side of the air spring 13. The front and back of the limiting sleeve 14 are respectively equipped with limiting rollers 15 that are rolled and connected to the front and back of the inner wall of the limiting seat 11. The limiting rollers 15 are inclined and parallel to the air spring 13. Both the first limiting roller 9 and the second limiting roller 15 are rolling bearings.

[0030] Working principle:

[0031] The bottom of the vibrating chamber 2, corresponding to the vibrating motor 5, is supported by a figure-eight air spring 13, which better conforms to the tilted vibration direction of the vibrating chamber 2. While satisfying the damping and support effects, it also improves the support stability. The bottom of the vibrating chamber 2, away from the vibrating motor 5, is supported by an inflatable roller 8, which enables it to have the effects of damping and lateral movement, adapting to the tilted vibration direction. Furthermore, the limiting roller 1 9 and the limiting roller 2 15 limit the possibility of longitudinal movement of the vibrating chamber 2, making the vibration of the vibrating chamber 2 stable and regular, ensuring the stability of the vibrating chamber 2, thereby ensuring the efficiency and effect of grain grading.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

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