CN111185366B

CN111185366B - High-efficient sieving mechanism of wheat flour for food processing

Info

Publication number: CN111185366B
Application number: CN201911426659.2A
Authority: CN
Inventors: 姜玉素
Original assignee: Yantai Vocational College
Current assignee: Yantai Vocational College
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2021-11-19
Anticipated expiration: 2039-12-27
Also published as: CN111185366A

Abstract

The invention discloses a high-efficiency wheat flour screening device for food processing, which comprises an excitation screen assembly (1) formed by sequentially axially and spirally connecting and butting a primary excitation screen, a secondary excitation screen and a tertiary excitation screen into a whole, wherein an excitation source mechanism is arranged at the bottom of the excitation screen assembly (1); the excitation source mechanism comprises an excitation box (2), a motor (3) is fixedly mounted at the end part of the excitation box (2), a driving shaft lever (4) is mounted at the output shaft end of the motor (3), and the driving shaft lever (4) is horizontally arranged in the excitation box (2). The vibration sieve assembly has a simple structure, the vibration source mechanism can drive the vibration sieve assembly to vibrate in the axial direction and the radial direction, wherein the vibration in the axial direction is directly applied to the vibration for sieving, and the vibration in the radial direction can further improve the sieving effect and simultaneously can quickly spread the wheat flour in the rotary vibration sieve, thereby further improving the integral sieving efficiency.

Description

High-efficient sieving mechanism of wheat flour for food processing

Technical Field

The invention relates to the technical field related to food processing machinery, in particular to a high-efficiency wheat flour screening device for food processing.

Background

In general, the flour obtained during milling in wheat flour processing equipment for food processing is largely divided into three parts, namely large endosperm lumps, starch granules and matrix pieces. The screening standard of flour in the flour milling process of wheat flour processing equipment is as follows: the particle size and the protein content of the three parts are different, almost all the parts smaller than 17um are small protein fragments and small starch grains, and the protein content is high and almost 2 times of the average protein content of the raw powder; the grains with the size of 17-40 um are mainly large starch grains, and the protein content is small and is half of the average protein content of the original flour; 40-200 um is mainly endosperm lumps;

the special sieving machine for wheat starch is one of rotary vibrating sieves, and is specially used for solving the problem of wheat starch in the sieving process. The principle is that a vertical motor is used as an excitation source, eccentric wheels are installed at the upper end and the lower end of an output shaft of the motor, the rotary motion of the motor is converted into vibration in the horizontal direction, and the vibration is transmitted to a screen surface. In the application process, because the excitation source is only in the horizontal direction, the wheat flour in the excitation screen can be stacked, so that the overall screening efficiency is poor, and how to rapidly spread and screen the wheat flour in the rotary vibration screen is the best mode for improving the screening efficiency.

Disclosure of Invention

The invention aims to provide a high-efficiency wheat flour screening device for food processing, which can effectively solve the problems in the background technology.

In order to solve the problems in the background technology, the vibration screen assembly comprises a vibration screen assembly 1 which is formed by sequentially axially and spirally connecting and butting a primary vibration screen, a secondary vibration screen and a tertiary vibration screen into a whole, wherein a vibration source mechanism is arranged at the bottom of the vibration screen assembly 1;

the excitation source mechanism comprises an excitation box 2, a motor 3 is fixedly arranged at the end part of the excitation box 2, a driving shaft lever 4 is arranged at the output shaft end of the motor 3, the driving shaft lever 4 is horizontally arranged in the excitation box 2, two ends of the driving shaft lever 4 are respectively in rotating connection and matching with the inner wall of the excitation box 2, an eccentric wheel 5, a first exciting wheel 6 and a sleeve 7 which is sleeved on the driving shaft lever 4 with a gap are sequentially and fixedly arranged on the driving shaft lever 4 from the end part close to one end of the motor 3, a second exciting wheel 8 corresponding to the first exciting wheel 6 extends out from the end part of the sleeve 7 in the radial direction, a first clutch gear 9 extends outwards and axially from the edge of the end face of the first exciting wheel 6, and a second clutch gear 10 which can be meshed with the first clutch gear 9 extends outwards and axially from the edge of the end face of the second exciting wheel 8;

a connecting rod 11 is fixedly welded on the sleeve 7, the top of the connecting rod 11 is in rotating connection and matching with a first lug seat 16, and the first lug seat 16 is fixedly welded on the lower bottom surface of the vibration sieve assembly 1;

the sleeve 7 is sleeved with a first spring 12, and two ends of the first spring 12 are respectively propped between the end surface of the connecting rod 11 and the inner wall of the excitation box 2;

the two sides of the excitation box 2, which are close to one end of the motor 3, are respectively provided with a second spring 13, and the upper end of the second spring 13 is fixedly arranged at the lower bottom surface of the excitation screen assembly 1;

each gear tooth on the first clutch gear 9 and the second clutch gear 10 is in a right-angled triangle structure.

A second ear seat 14 is installed at the lower bottom surface of the excitation box 2, a shaft roller 15 is installed in the second ear seat 14, and the outer circular surface of the eccentric wheel 5 abuts against the shaft roller 15.

Due to the adoption of the technical scheme, the invention has the following beneficial effects: simple structure, excitation source mechanism can drive the vibration sieve assembly and make the vibrations of axial and radial direction, and wherein the vibrations of axial direction are the vibrations that directly are applied to the screening, and the vibrations of radial direction can spread out the wheatmeal in the sieve that shakes soon again when further improvement screening effect, has further improved holistic screening efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a circular gear in the embodiment of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the technical scheme in the embodiment of the invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the invention.

Referring to fig. 1, the present embodiment is realized by adopting the following technical scheme, which comprises an excitation screen assembly 1 formed by sequentially axially and rotatably connecting and butting a first-stage excitation screen, a second-stage excitation screen and a third-stage excitation screen into a whole, wherein an excitation source mechanism is arranged at the bottom of the excitation screen assembly 1;

The following will further explain the application method and the principle of the technical solution part in this embodiment with reference to the accompanying drawings:

firstly, directly dumping wheat flour to be screened onto an excitation screen assembly 1, then starting a motor 3 to drive an entire drive shaft lever 4 to rotate, and respectively driving an eccentric wheel 5 and a first excitation wheel 6 to rotate by the drive shaft lever 4 in the rotating process;

the rotation direction of the first exciting wheel 6 is to rotate towards the inclined plane direction of the gear teeth in the first clutch gear 9, and the second clutch gear 10 meshed with the first clutch gear 9 is not transmitted, because the sleeve 7 is sleeved on the driving shaft lever 4 with a gap, and the position of the driving shaft lever 4 is fixed, the sleeve 7 is repeatedly driven by the first clutch gear 9 and the second clutch gear 10 in the process of continuous slipping to compress the first spring 12 along the axial direction of the driving shaft lever 4, and the second exciting wheel 8 on the sleeve 7 drives the whole exciting screen assembly 1 to do vibration action in the radial direction through the connecting rod 11 and the first ear seat 16 in the process of repeatedly impacting the first exciting wheel 6 to do vibration action in the radial direction;

the eccentric wheel 5 drives the whole vibration exciting screen assembly 1 to do pitching and swinging vibration actions in the axial direction by taking the first lug seat 16 as the center of a circle through the second lug seat 14 and the shaft roller 15 in the rotating process, so that the wheat flour is quickly spread out, and the whole screening efficiency is further improved;

referring to fig. 2, in the implementation process, a gear with semicircular gear teeth can be mounted at the end parts of the second exciting wheel 8 and the first exciting wheel 6, and the purpose of repeatedly combining, slipping and driving the sleeve 7 to repeatedly compress the first spring 12 along the axial direction of the driving shaft rod 4 can also be achieved, but the non-standard gear is very difficult to purchase and process in the market, while the clutch gear is more common, and some automobile parts can be directly purchased and implemented.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The efficient wheat flour screening device for food processing is characterized by comprising an excitation screen assembly (1) formed by sequentially axially and rotatably connecting a primary excitation screen, a secondary excitation screen and a tertiary excitation screen into a whole in a butt joint mode, wherein an excitation source mechanism is arranged at the bottom of the excitation screen assembly (1);

the excitation source mechanism comprises an excitation box (2), a motor (3) is fixedly mounted at the end part of the excitation box (2), a driving shaft lever (4) is mounted at the output shaft end of the motor (3), the driving shaft lever (4) is horizontally arranged in the excitation box (2), two ends of the driving shaft lever (4) are respectively in rotating connection and matching with the inner wall of the excitation box (2), an eccentric wheel (5), a first excitation wheel (6) and a sleeve (7) sleeved on the driving shaft lever (4) in a clearance manner are sequentially and fixedly mounted on the driving shaft lever (4) from the end part close to one end of the motor (3), a second excitation wheel (8) corresponding to the first excitation wheel (6) extends outwards in the radial direction from the end part of the sleeve (7), and a first clutch gear (9) extends outwards and axially from the edge of the end face of the first excitation wheel (6), a second clutch gear (10) which can be meshed with the first clutch gear (9) extends outwards and axially from the edge of the end face of the second exciting wheel (8);

a connecting rod (11) is fixedly welded on the sleeve (7), the top of the connecting rod (11) is in rotating connection and matching with a first ear seat (16), and the first ear seat (16) is fixedly welded on the lower bottom surface of the vibration exciting screen assembly (1);

the sleeve (7) is sleeved with a first spring (12), and two ends of the first spring (12) are respectively propped between the end surface of the connecting rod (11) and the inner wall of the excitation box (2);

and the two sides of the excitation box (2) close to one end of the motor (3) are respectively provided with a second spring (13), and the upper end of the second spring (13) is fixedly arranged on the lower bottom surface of the excitation screen assembly (1).

2. The high-efficiency screening device for wheat flour for food processing as claimed in claim 1, wherein each gear tooth of the first clutch gear (9) and the second clutch gear (10) is of a right-angled triangle structure.

3. The high-efficiency screening device for wheat flour for food processing as claimed in claim 1, wherein each gear tooth of the first clutch gear (9) and the second clutch gear (10) is of a semicircular structure.

4. The efficient screening apparatus for wheat flour for food processing as claimed in claim 1, wherein a second ear seat (14) is installed at a lower bottom surface of said vibration box (2), a roller (15) is installed in said second ear seat (14), and an outer circumferential surface of said eccentric wheel (5) abuts against said roller (15).