CN110733836A

CN110733836A - chain belt type feeder

Info

Publication number: CN110733836A
Application number: CN201911175140.1A
Authority: CN
Inventors: 刘钧; 刘小云; 李江平
Original assignee: Hunan Gao Zhi Seiko Machinery Co Ltd
Current assignee: Hunan Gao Zhi Seiko Machinery Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-01-31

Abstract

The invention provides chain belt type feeders, which comprise a front shaft, a rear shaft, a front wheel, a rear wheel and a chain belt, wherein the chain belt comprises driving grate segments, scrapers and a pin shaft, the driving grate segments are connected end to end through the pin shaft to form a grate chain, a plurality of scrapers are arranged between every two grate chains, the chain belt can be divided into an upper process section and a lower return section, each scraper comprises long strip-shaped bottom plates, downward lug plates are welded at two ends of each bottom plate, each lug plate is only provided with shaft holes, the scrapers are rotatably arranged on the pin shaft through the shaft holes on the two lug plates, the two lug plates are close to the side of the bottom plate facing the moving direction, L-shaped plates are welded on the upper surface of the bottom plate opposite to the moving direction and on side, the L-shaped plates on each scraper plate can cover the gap between the two scrapers in the process section and are partially overlapped on the bottom plate of the scraper behind the chain belt.

Description

chain belt type feeder

Technical Field

The invention relates to the technical field of boiler systems, in particular to chain belt feeders.

Background

In the biomass boiler, the chain-belt feeder is used for conveying the fuel falling from the hopper to the hearth for combustion. The chain belt feeder provided by the prior art generally comprises a front wheel and a rear wheel which are arranged on a front shaft and a rear shaft, and a chain belt sleeved on the front wheel and the rear wheel, wherein the chain belt comprises driving grate segments, scraping plates and a pin shaft, the driving grate segments are connected end to end through the pin shaft to form a grate chain, and a plurality of scraping plates are arranged between every two grate chains. Since there is inevitably a gap between the scrapers, especially at the place where the chain belt contacts the front and rear wheels, the gap between the scrapers is larger, and the fuel is likely to fall into the gap between the rear wheel and the rear axle through the gap between the scrapers to cause jamming.

Disclosure of Invention

The invention aims to provide chain belt feeders to prevent fuel from falling into gaps between a rear wheel and a rear shaft.

In order to solve the technical problems, the chain belt feeder comprises a front shaft, a rear shaft, a front wheel, a rear wheel and a chain belt, wherein the front wheel is installed on the front shaft, the rear wheel is installed on the rear shaft, the chain belt is sleeved on the front wheel and the rear wheel and rotates clockwise towards the rear wheel, the rear wheel is close to a boiler hearth, the chain belt comprises driving grate segments, scraping plates and pin shafts, the driving grate segments are connected end to end through the pin shafts to form a grate chain, a plurality of scraping plates are installed between every two grate chains, the chain belt can be divided into an upper process segment and a lower return segment, the scraping plates comprise long strip-shaped bottom plates, downward lug plates are welded at two ends of each bottom plate, only 5 shaft holes are arranged on each lug plate, the scraping plates are rotatably installed on the pin shafts through the shaft holes on the two lug plates, the two lug plates are close to the side of the bottom plate in the moving direction, the upper surface of the lug plate on the side opposite to the moving direction of the bottom plate is welded with the scraping plates 48363, only the scraping plates are welded on the partial bottom plate, and gaps of the scraping plates 8678 of the scraper plates are welded between the two lug plates on the bottom plates, and only the partial scraping plates of the scraper plates are welded between the 3625L shaped plates.

To strengthen the bottom panel, a reinforcing plate is welded to the bottom surface of the bottom panel.

Wherein the reinforcing plates include a transverse reinforcing plate and a longitudinal reinforcing plate.

Wherein, the L-shaped plate is made of angle steel.

In the technical scheme, the lug plates are arranged on the side of the bottom plate of each scraper facing the moving direction, the L-shaped plate is welded on the upper surface of the opposite side, the L-shaped plate on each scraper can cover the gap between the two scrapers in the process section of the chain belt and is partially overlapped on the bottom plate of the scraper behind the scraper, so that fuel can be pushed to move forwards towards the rear wheel in the horizontal direction, when the L-shaped plate on the front scraper reaches distance of the front part of the rear wheel, the L-shaped plate can still be placed on the rear scraper to prevent the fuel from falling into the gap between the rear shaft and the rear wheel, when the scrapers move forwards again, the scrapers are rotatably arranged on the pin shafts through shaft holes in the two lug plates, the scrapers turn over downwards under the action of gravity, the fuel on the scrapers is placed into a hearth due to the centrifugal force and the acceleration given in the falling process of the scrapers, so that the fuel on the scrapers is prevented from falling into the hearth from falling into the hopper in the return section, and fine particles are prevented from falling into the inner surface of the hopper in the return section of the hopper in the process of the hopper.

Drawings

Fig. 1 is a schematic overall structure diagram of a chain belt feeder in an embodiment of the invention;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic view of a squeegee configuration in an embodiment of the invention;

FIG. 5 is a left side view of FIG. 4;

the reference signs are:

1-front axle 2-rear axle 3-front wheel

4-rear wheel 5-active fire grate 6-scraper

7-pin shaft 6 a-bottom plate 6 b-ear plate

6 c-L-shaped plate 6 d-transverse reinforcing plate 6 e-longitudinal reinforcing plate.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

In the description of the present invention, it is to be understood that the terms "", "second", and "a plurality" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

As shown in the attached figures 1 and 2, chain belt type feeding machines comprise a front shaft 1, a rear shaft 2, a front wheel 3, a rear wheel 4 and a chain belt, wherein the front wheel 3 is installed on the front shaft 1, the rear wheel 4 is installed on the rear shaft 2, the chain belt is sleeved on the front wheel 2 and the rear wheel 4 and rotates in the direction of clockwise backward wheel, the rear wheel 4 is close to a boiler hearth, the chain belt comprises driving grate segments 5, scrapers 6 and a pin shaft 7, the driving grate segments 5 are connected end to end through the pin shaft 7 to form a grate chain, a plurality of scrapers 6 are installed between every two grate chains, the chain belt can be divided into an upper process section and a lower return section, the scrapers 6 comprise long strip-shaped bottom plates 6a, 3876 b which are downward are welded at two ends of the bottom plate 6a respectively, shaft holes are arranged on each lug plate 6b, the scrapers 6 are rotatably installed on the upper process section and the lower return section of the scraper 6b through shaft holes on the two lug plates 6b, the two lug plates 6b are both close to the movement direction of the bottom plate 6b, only shaft holes are welded with the bottom plate on the bottom plate 6c of the bottom plate, the bottom plate is welded with angle steel sheets which covers the transverse direction of the bottom plate, the reinforcing plate which covers the transverse reinforcing plate which covers the bottom plate is manufactured by the angle steel bar 6a, the corner pieces 6c of the bottom plate, the bottom plate which covers the bottom plate, the corner reinforcing plate is manufactured by the corner pieces which covers the corner pieces of the corner pieces.

In the technical scheme, because the lug plates 6b are arranged on the side of the bottom plate 6a of each scraper 6 facing the moving direction, the L-shaped plate 6c is welded on the upper surface of the opposite side, the L-shaped plate 6c on each scraper 6 can cover the gap between the two scrapers 6 in the process section of the chain belt and is partially overlapped on the bottom plate 6a of the scraper 6 behind the scraper, so that the fuel can be pushed to move forwards towards the rear wheel 4 in the horizontal direction, when the front quarter of the rear wheel 4 is reached, the L-shaped plate 6c on the front scraper 6 can still rest on the rear scraper 6, the fuel on the scraper 6 is prevented from falling into the gap between the rear shaft 2 and the rear wheel 4, when the scraper 6 moves forwards again, the scraper 6 is rotatably arranged on the pin shaft 7 through the shaft holes on the two lug plates 6b, the scraper 6 turns downwards under the action of gravity, the fuel on the scraper 6 is thrown into the furnace belt by the centrifugal force and the acceleration of the scraper 6 in the falling process, so as to protect the rear shaft 2 and the rear 4 from being not being very slightly fallen between the scraper, the inner surface of the scraper 6, so that the fine blanking scraper is easily formed in the process section, and the process of the fine blanking hopper, the fine blanking hopper is prevented from falling, and the hopper is prevented from falling under the hopper, and the hopper.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

The figures and description of the invention have been simplified for the sake of clarity and the other elements have been omitted from this document for the sake of clarity to allow those skilled in the art to more readily understand the improvement of the present invention over the prior art, and those skilled in the art will recognize that these omitted elements also constitute the content of the present invention.

Claims

The chain belt feeder is characterized in that the scraper (6) comprises long bottom plates (6 a), each scraper (6 a) comprises downward lug plates (6 b) at two ends of the bottom plate (6 a), each lug plate (6 b) is provided with a progress section and a return section below the progress section, only the baseplate (6 b) covers the baseplate (6 a) at the position where the baseplate (6 a) moves towards the upper end of the baseplate (6 a), the baseplate (6 a) is welded with the baseplate (6 b) at the position where the baseplate (6 a) moves towards the upper end of the baseplate (6 a), and the baseplate (6 a) is welded with two lug plates (6 a) at the position opposite to the position of the baseplate (6 a) and the baseplate (6 a) at the position where the baseplate (6 a) moves towards the gap (3 a) of the baseplate (6 b), and the baseplate (6 a) is welded with the baseplate (6 a) at the position where the baseplate (6 a) moves towards the gap (3 c) at the position of the baseplate (6 a) at which the upper end of the baseplate (6 a) and the baseplate (6 b) moves towards the baseplate (3 c).
2. The chain belt feeder of claim 1, characterized in that: and a reinforcing plate is welded on the lower surface of the bottom plate (6 a).
3. The chain belt feeder of claim 2, characterized in that: the reinforcing plates include a transverse reinforcing plate (6 d) and a longitudinal reinforcing plate (6 e).
4. A chain belt feeder according to any claims 1-3, characterized in that the L-shaped plate (6 c) is made of angle steel.