CN206168813U - Electronic swinging guide rod formula cereal grading plant - Google Patents

Abstract

The utility model relates to an electric swing guide rod type grain grading device, which comprises a motor base, a frequency conversion motor, a crank, a rocker, a grain bin and a bracket; , one end of the rocker is set on the slide rod, and the other end is connected with the frequency conversion motor through the crank, and the frequency conversion motor is fixed on the motor seat; the crank is driven by the frequency conversion motor, and can drive the grain bin to vibrate back and forth around the shaft through the rocker; the grain bin The lower part is semi-circular, and the interior is uniformly provided with a plurality of longitudinal ribs along the axial direction, and the bottom is uniformly provided with a plurality of strip-shaped holes along the axial direction, and the longitudinal ribs and the strip-shaped holes are arranged at intervals. The utility model uses a frequency conversion motor as a power source, has a simple and light structure, can improve the grain grading efficiency, strengthen the grain grading effect, and adapt to grain purification with different grading requirements.

Description

An electric swing guide rod type grain grading device

technical field

The utility model relates to a grading device, in particular to an electric swing guide rod type grain grading device suitable for separating grain or plant seeds from impurities.

Background technique

Mr. Song Yingxing, a sage of the Ming Dynasty, recorded in "Tiangong Kaiwu" the classification method of using round sieves and dustpans to remove grain husks, grass stems, and sand and gravel. However, these ancient grain grading devices are generally operated by manpower, and are operated with large amplitude and low frequency (about 1 Hz), so the grain grading efficiency is low, the grading effect is poor, and the labor intensity of people is high.

The existing grain and impurity separation device generally adopts the following methods: 1) Vibration screening method, such as the utility model patent "grain gravity classification stone removal machine" (authorized announcement number: CN202398536U); 2) wind separation method, such as the invention Patent "grain screening device for brewing wine" (patent application publication number: CN203737557U). The structure of the above devices is comparatively complicated, the floor area is large, the weight of the whole machine equipment is large, the energy consumption is large, and the classification efficiency is low.

Contents of the invention

The utility model provides an electric swing guide rod type grain grading device, which uses a frequency conversion motor as a power source, has a simple and light structure, can improve the grain grading efficiency, strengthen the grain grading effect, and adapt to grain purification for different grading requirements.

In order to achieve the above object, the utility model adopts the following technical solutions to realize:

An electric swing guide rod type grain grading device, including a motor base, a frequency conversion motor, a crank, a rocker, a grain bin and a bracket; One end is set on the slide rod, and the other end is connected with the frequency conversion motor through the crank, and the frequency conversion motor is fixed on the motor base; the crank is driven by the frequency conversion motor, and can drive the grain bin to reciprocate and vibrate around the rotating shaft through the rocker; the lower part of the grain bin is a semicircle In the shape, a plurality of longitudinal ribs are evenly arranged in the axial direction, and a plurality of strip-shaped holes are evenly arranged in the bottom along the axial direction, and the longitudinal ribs and the strip-shaped holes are arranged at intervals.

A torsion spring is arranged between the grain bin and the support, and there are two torsion springs, which are respectively installed on both sides of the grain bin.

The frequency conversion range of the frequency conversion motor is 3-8 Hz.

The swing amplitude of the grain bin is ±10°.

The width of the strip-shaped hole is 1.5-3 mm.

Compared with the prior art, the beneficial effects of the utility model are:

1) The power source used is a frequency conversion motor, which can strengthen the grain purification effect and adapt to the grain purification of different grading requirements;

2) Through the agitation of the longitudinal ribs, the material particles can be loosened, which is conducive to stratification. At the same time, the impact of the longitudinal ribs on the material particles effectively increases the energy of the segregation and stratification of the material particles;

3) There is a torsion spring on both sides of the grain bin. When the grain bin swings to the limit position, the torsion spring can not only play a buffer role, but also play a role in assisting the grain bin to return to its original position; thus achieving a better swing. Vibration grading effect.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the electric swing guide rod type grain grading device of the present invention.

Fig. 2 is a schematic diagram of the three-dimensional structure of the rocker described in the present invention.

Fig. 3 is a schematic diagram of the three-dimensional structure of the grain bin of the present invention.

Fig. 4 is a schematic diagram of the three-dimensional structure of the torsion spring of the present invention.

Fig. 5 is a schematic diagram of the three-dimensional structure of the bracket described in the present invention.

In the figure: 1. Motor seat 2. Frequency conversion motor 3. Crank 4. Rocker 5. Grain bin 51. Longitudinal rib 52. Strip hole 6. Torsion spring 7. Bracket

detailed description

The specific embodiment of the utility model will be further described below in conjunction with accompanying drawing:

As shown in Figure 1, an electric swing guide rod type grain grading device described in the utility model includes a motor base 1, a frequency conversion motor 2, a crank 3, a rocker 4, a grain bin 5 and a support 7; the grain bin 5 The upper part is hinged on the bracket 7 through a rotating shaft, a slide bar is arranged on the top of the grain bin 5, one end of the rocker 4 is set on the slide bar, and the other end is connected with the frequency conversion motor 2 through the crank 3, and the frequency conversion motor 2 is fixed on the motor base 1; 3 is driven by the frequency conversion motor 2, and can drive the grain bin 5 to reciprocate and vibrate around the rotating shaft through the rocker 4; the lower part of the grain bin 5 is semicircular, and a plurality of longitudinal ribs 51 are evenly arranged inside it along the axial direction, and the bottom is along the axial direction. A plurality of strip-shaped holes 52 are uniformly arranged, and the longitudinal ribs 51 and the strip-shaped holes 52 are arranged at intervals.

Between described grain bin 5 and support 7, be provided with torsion spring 6, torsion spring 6 is 2, is installed in grain bin 5 both sides respectively.

The range of frequency conversion of the frequency conversion motor 2 is 3-8 Hz.

The swing amplitude of the grain bin 5 is ±10°.

The width of the strip-shaped hole 52 is 1.5-3mm.

The following examples are carried out on the premise of the technical solution of the utility model, and detailed implementation and specific operation process are provided, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

【Example】

In this embodiment, an electric swing guide rod type grain grading device consists of a motor base 1, a frequency conversion motor 2, a crank 3, a rocker 4 (as shown in Figure 2), a grain bin 5, and a torsion spring 6 (as shown in Figure 4 ). shown), bracket 7 (as shown in Figure 5), the crank 3, the rocker 4 and the grain bin 5 form a swing guide rod mechanism, which reciprocates around the shaft in the facade under the drive of the frequency conversion motor 2 shimmy.

The range of the frequency conversion of the frequency conversion motor 1 is 3-8 Hz, and the swing amplitude of the grain bin 5 is ±10°, which is beneficial to the classification of different types of grains.

As shown in Figure 3, round holes with a diameter of 20 mm are respectively provided on both sides of the upper part of the grain bin 5 to form a hinge with clearance fit with the rotating shaft. Holes 52, four longitudinal ribs 51 are arranged inside the grain bin 5, the width of the longitudinal ribs 51 is 8mm, and the height is 6mm; the longitudinal ribs 51 and the strip holes 52 are arranged at intervals. The material of the longitudinal ribs 51 is wear-resistant steel. When the grain bin 5 vibrates, the stirring of the four longitudinal ribs 51 can make the material particles loose, which is beneficial to stratification. At the same time, the impact of the longitudinal ribs 51 on the material particles effectively increases the The energy of segregation and stratification of material particles is increased.

The variable frequency motor 2 is fixed on the motor base 1 by bolts. The protruding end of the variable frequency motor 2 is connected to one end of the crank 3 through an ordinary flat key. 4. The right end is set on the slide bar at the top of the grain bin 5 and can slide up and down along the slide bar.

The grain bin 5 is hinged with the bracket 7 through a rotating shaft; one end of the torsion spring 6 is fixed on the outer wall of the grain bin 5 by a screw, and the other end is fixed on the bracket 7 by a screw; the bracket 7 is fixed on the base by a bolt, and the base is fixed on the on the foundation.

The working principle and process of an electric swing guide rod type grain grading device described in the utility model are as follows:

The principle of segregation and stratification: when the grain bin 5 vibrates back and forth, the grain in the grain bin 5 relies on the friction of the bin wall and the collision of the longitudinal ribs 51 at the bottom of the grain bin 5 to obtain energy, so that the gap between the grains changes, which is the position exchange between grain particles Preconditions are provided. Since the energy and momentum of light particles are much smaller than those of heavy particles, light particles are more likely to move to the external free space during collision. At this time, under the action of gravity, heavy particles move to and fill the lower space of the material layer, and light particles are in the During the continuous extrusion, it is moved to the upper part of the material layer, forming the result of segregation and stratification that the grass stem is in the upper layer, the grain is in the middle layer, and the sand and gravel are in the lower layer.

The working process of grading: after the grain to be graded is loaded into the grain bin 5, the frequency conversion motor 2 is started, and driven by the frequency conversion motor 2, the grain bin 5 performs reciprocating vibration, so that the grass stalks, grains, sand and gravel in the grain bin 5 Along the thickness direction of the material layer, upper, middle and lower segregation layers appear. Because the bottom of the grain bin 5 is provided with a 2mm wide strip hole 52, when the grain bin 5 vibrates, the bottom fine sand is screened out of the bin. Grass stalk rises into the top layer in the segregation stratification. After stratification is completed, first remove the light particles (grass stalk etc.) on the grain bin 5 top, then take out the grain to complete the grading operation.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and its concept should be covered within the protection scope of the present utility model.

Claims (5)

1. a kind of electric swing guide rod type corn grading plant, it is characterised in that including motor cabinet, frequency conversion motor, crank, shake Block, granary and support；The granary top is hinged on support by rotating shaft, and granary top sets slide bar, and the one of swinging block End is sleeved on slide bar, and the other end is connected by crank with frequency conversion motor, and frequency conversion motor is fixed on motor cabinet；Crank is by frequency conversion Motor drive, and by swinging block granary can be driven reciprocal around the shaft shimmy；Granary bottom is semicircle, and it is axially inside A plurality of vertical muscle is uniformly provided with, bottom is uniformly provided with vertically multiple tracks bar hole, and vertical muscle and bar hole interval setting.

2. a kind of electric swing guide rod type corn grading plant according to claim 1, it is characterised in that the granary Torsion spring is provided between support, torsion spring is 2, is separately mounted to granary both sides.

3. a kind of electric swing guide rod type corn grading plant according to claim 1, it is characterised in that the variable-frequency electric The scope of the frequency conversion of machine is 3~8Hz.

4. a kind of electric swing guide rod type corn grading plant according to claim 1, it is characterised in that the granary Shimmy amplitude be ± 10 °.

5. a kind of electric swing guide rod type corn grading plant according to claim 1, it is characterised in that the bar hole Width be 1.5~3mm.