CN220683678U - Concrete aggregate metering device - Google Patents

Abstract

The utility model relates to the technical field of aggregate metering equipment, in particular to a concrete aggregate metering device, which comprises an aggregate bin, wherein a buffer plate is arranged in the aggregate bin, a receiving plate which is staggered with the buffer plate is arranged in the aggregate bin, the buffer plate comprises support rods, rotating shafts and rollers, a plurality of grooves are formed in the two support rods, limiting springs are arranged in each groove, sleeves are arranged at the upper ends of the limiting springs, the rotating shafts are connected between the two corresponding sleeves, the rollers are arranged on each rotating shaft, and conveying belts are sleeved on the rollers. According to the utility model, the sand and stone aggregates entering the aggregate bin are buffered and decelerated through the plurality of limiting springs in the buffer plate, and are matched with the plurality of rollers and the conveying belt, the impact force of the sand and stone aggregates is utilized to drive the conveying belt to rotate and drive, the impact force is converted into the kinetic energy of the rotation of the conveying belt, the purpose of reducing the speed of the sand and stone aggregates is achieved, and the situation that the sand and stone aggregates are directly impacted with equipment such as the aggregate bin and the like to be damaged is avoided.

Description

Concrete aggregate metering device

Technical Field

The utility model relates to the technical field of aggregate metering equipment, in particular to a concrete aggregate metering device.

Background

The aggregate is one of main components in concrete, and refers to a granular material used in concrete preparation, wherein the aggregate is generally composed of natural stone, artificial stone or recycled aggregate and the like and can be roughly divided into coarse aggregate and fine aggregate, the aggregate plays roles of filling and supporting a framework in the concrete, cement slurry is filled among particles of the aggregate, and a matrix structure of the concrete is formed; the selection of the aggregate has important influence on the performances of the concrete, such as strength, compactness, crack resistance, durability and the like.

Most of the gravel aggregate metering bins of concrete mixers in the current market cannot well cope with the damage caused by the falling speed of aggregate when dealing with the entering gravel aggregate, and the falling gravel aggregate is easy to impact the inner wall and the bottom wall of the gravel aggregate metering bins when the falling gravel aggregate speed is too fast, so that the inner wall and the bottom wall of the metering bins are worn and broken and damaged, and the situation that the metering bins are worn and broken and damaged is caused, so that the concrete metering bins cannot be used, and the production flow of the whole concrete is influenced, and economic cost and time cost are lost.

Therefore, the concrete aggregate metering device utilizes the impact force of the falling sand aggregates as power, converts the impact force into the kinetic energy for slowing down the rotation of the assembly, and achieves the purpose of reducing the sand aggregates.

Disclosure of Invention

The utility model aims to provide a concrete aggregate metering device, which is characterized in that a plurality of limiting springs are arranged in a buffer plate to buffer and decelerate gravel aggregate entering an aggregate bin, a plurality of rollers and a conveyor belt are matched, the conveyor belt is driven to rotate by the impact force of the gravel aggregate, the impact force is converted into the kinetic energy of the rotation of the conveyor belt, the purpose of reducing the speed of the gravel aggregate is achieved, and the condition that the gravel aggregate is directly impacted with equipment such as the aggregate bin or a stirrer to cause damage is avoided.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a concrete aggregate metering device comprising:

the aggregate bin, aggregate bin top is equipped with the blowing groove, aggregate bin bottom is equipped with the blown down tank, the inside upper end of aggregate bin is equipped with the buffer board, and the inside lower extreme of aggregate bin is equipped with the receiving plate with buffer board staggered arrangement, buffer board and receiving plate all are towards corresponding direction downward sloping, the buffer board includes bracing piece, pivot, cylinder, two a plurality of recesses of mutually supporting have all been seted up on the bracing piece, every all be equipped with restriction spring in the recess, every restriction spring upper end all is equipped with the sleeve, and is connected with the pivot jointly between two corresponding sleeves, every all be equipped with the cylinder in the pivot, a plurality of common cover is equipped with the conveyer belt on the cylinder.

Preferably, the diameters of a plurality of the cylinders are gradually reduced along the direction that the supporting rods are far away from the inner wall of the aggregate bin, the section shape of the buffer plate is in a downward-inclined arc shape, the discharge chute is downward-inclined, and the opening position and the inclination angle of the discharge chute are matched with the arc shape of the buffer plate.

Preferably, a plurality of herringbone convex strips are uniformly distributed on the conveying belt.

Preferably, the buffer plate is in the coplanar with the axis of receiving plate, and the length of receiving plate is greater than the length of buffer plate, the receiving plate has seted up the receiving tank, the width in receiving tank is kept away from aggregate bin inner wall direction along the receiving plate and is reduced gradually, and draws close to the axis.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the concrete aggregate metering device, the gravel aggregate entering the aggregate bin is buffered and decelerated through the limiting springs arranged in the buffer plate, the conveyor belt is driven to rotate by the impact force of the gravel aggregate in cooperation with the rollers and the conveyor belt, the impact force is converted into the kinetic energy of the rotation of the conveyor belt, the purpose of reducing the speed of the gravel aggregate is achieved, and the condition that the gravel aggregate is directly impacted with the aggregate bin or a stirrer and the like to cause damage is avoided.

2. According to the concrete aggregate metering device, the conveyer belt is provided with the plurality of herringbone convex strips, so that the conveyer belt can be driven conveniently through the convex strips when sand aggregates slide down, the situation that the sand aggregates simply drive the conveyer belt to drive by friction force to cause abrasion of the conveyer belt is reduced, the height of the convex strips is 0.5-1cm, the situation that the sand aggregates are blocked and clamped by the convex strips is reduced, and the phenomenon that the accumulation situation is avoided to influence the transmission efficiency of the conveyer belt is avoided.

3. According to the concrete aggregate metering device, the receiving grooves are formed in the receiving plates, so that the sand aggregates fall into the receiving grooves, the sand aggregates are prevented from moving to two sides of the receiving plates, the received width gradually contracts towards the central axis and approaches to the central axis, gaps among the sand aggregates are further compressed, the sand aggregates collide with each other and are decelerated, and the purpose of slowing down the sand aggregate speed is achieved.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a top partial cross-sectional view of the present utility model;

FIG. 3 is a cut-away view of FIG. 2 a in accordance with the present utility model;

FIG. 4 is a cut-away view of the B-B of FIG. 2 in accordance with the present utility model;

FIG. 5 is an enlarged view of FIG. 4 at C in accordance with the present utility model;

fig. 6 is a schematic diagram of the internal structure of the aggregate bin according to the utility model.

In the figure: 1. aggregate bin; 2. a discharge groove; 3. a discharge chute; 4. a receiving plate; 5. a support rod; 6. a rotating shaft; 7. a roller; 8. a groove; 9. a limiting spring; 10. a sleeve; 11. a conveyor belt; 12. a convex strip; 13. a receiving slot.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 6, the present utility model provides a concrete aggregate metering device, which has the following technical scheme:

aggregate storehouse 1, aggregate storehouse 1 top is equipped with blowing groove 2, aggregate storehouse 1 bottom is equipped with blown down tank 3, the inside upper end of aggregate storehouse 1 is equipped with the buffer board, and the inside lower extreme of aggregate storehouse 1 is equipped with the receiving plate 4 with buffer board staggered arrangement, buffer board and receiving plate 4 all incline downwards towards corresponding direction, the buffer board includes bracing piece 5, pivot 6, cylinder 7, a plurality of recess 8 that mutually support have all been seted up on two bracing pieces 5, all be equipped with restriction spring 9 in every recess 8, every restriction spring 9 upper end all is equipped with sleeve 10, and be connected with pivot 6 between two corresponding sleeve 10 jointly, all be equipped with cylinder 7 on every pivot 6, the common cover is equipped with conveyer belt 11 on a plurality of cylinders 7.

The sand aggregate enters the aggregate bin 1 through the discharging groove 2, the discharging groove 2 is arranged at one side of the top of the aggregate bin 1, which is close to the buffer plate, the sand aggregate falls onto the buffer plate along the opening track of the discharging groove 2, the buffer plate bears the impact given by the sand aggregate, a plurality of limiting springs 9 shrink under the impact force, and the falling sand aggregate drives a conveying belt 11 to drive under the action of friction force due to downward inclination of the buffer plate, so as to move downwards along the conveying belt 11, the roller 7 is driven to rotate in the process, and a rotating shaft 6 rotates in two corresponding sleeves 10, so that the impact force of the sand aggregate due to gravity falling is relieved through the transmission mode of the conveying belt 11 and the action of the limiting springs 9; the grit aggregate that breaks away from the buffer board falls into again on receiving the board 4, later falls along receiving board 4 downward sloping landing again, discharges from blown down tank 3 at last and enters into next process, through the buffering of buffer board and receiving board 4 for grit aggregate discharges from blown down tank 3 with a comparatively mild speed, avoids grit aggregate to directly strike with equipment such as aggregate bin 1 or mixer, leads to appearing the condition of damage.

The diameters of a plurality of cylinders 7 are gradually reduced along the direction that the inner wall of the aggregate bin 1 is kept away from by the bracing piece 5, the cross-sectional shape of buffer board presents the arc of downward sloping, the downward sloping of blowing groove 2, and blowing groove 2 open position and inclination and buffer board's arc cooperation, when the grit aggregate that passes through leaves blowing groove 2, cooperation gravity forms arc parabola, and the parabola forms certain degree of cooperation with the arc on the buffer board, under curved guide, can slow down the impact force that grit aggregate given conveyer belt 11 to a certain extent, make conveyer belt 11 diminish because of the wearing and tearing that the impact force received, the stability of conveyer belt 11 transmission has been promoted, and conveyer belt 11's life has been improved.

The sand and stone aggregate simply relies on frictional force to drive conveyer belt 11 motion, can increase to conveyer belt 11's wearing and tearing intensity, lead to conveyer belt 11 to damage easily, and then lead to sand and stone aggregate direct impact to cylinder 7 on, and lead to cylinder 7 damage, through being provided with a plurality of chevron shapes's sand and stone aggregate 12 on conveyer belt 11, can comparatively lightly drive conveyer belt 11 transmission through sand and stone aggregate 12 when the landing, and the bellied height of sand and stone aggregate 12 is at 0.5-1cm, reduce the condition that appears the sand and stone aggregate is blocked by the arch and block, and when conveyer belt 11 transmission rotated the buffer board lower extreme, because gravity reasons, some sand and stone aggregate that remains in sand and stone 12 department can drop, avoid appearing the accumulation condition and influence conveyer belt 11's transmission efficiency.

The central axes of the buffer plate and the receiving plate 4 are positioned on the same plane, the length of the receiving plate 4 is larger than that of the buffer plate, sand aggregates are prevented from spreading towards two sides due to mutual extrusion of the sand aggregates, and when the sand aggregates fall into the receiving plate 4, the sand aggregates slide to the bottom of the aggregate bin 1 from two sides of the receiving plate 4, so that the bottom of the aggregate bin 1 is easily damaged, and the durability of the aggregate bin 1 is ensured to a certain extent; the receiving plate 4 is provided with the receiving groove 13, and the sand and stone aggregate falls into the receiving groove 13, so that the sand and stone aggregate is prevented from moving towards the two sides of the receiving plate 4, the width of the receiving groove 13 is gradually reduced along the direction that the receiving plate 4 is far away from the inner wall of the aggregate bin 1, and the receiving groove is closed towards the central axis, and the gap between the sand and stone aggregate is further compressed, so that the sand and stone aggregate collides with each other and decelerates, and the purpose of slowing down the sand and stone aggregate rate is achieved.

The working process comprises the following steps: the grit aggregate enters into in the aggregate bin 1 through blowing groove 2, blowing groove 2 sets up and is close to buffer board one side at aggregate bin 1 top, the grit aggregate falls into on the buffer board along blowing groove 2's opening orbit, form arc parabola under the effect of gravity and blowing groove 2 inclination cooperation, the parabola forms certain fitness with the arc on the buffer board, under curved guide, slow down the impact force that grit aggregate gave conveyer belt 11, utilize the impact force of grit aggregate and chevron shape sand grip 12 cooperation, make conveyer belt 11 begin the operation, the grit aggregate that breaks away from conveyer belt 11 falls into in receiving groove 13 on the receiving plate 4, because receiving plate 4 and buffer board are downward sloping form, then the grit aggregate falls into along receiving groove 13 again and breaks away from, the in-process, because receiving groove 13's width is kept away from aggregate bin 1 inner wall direction along receiving plate 4 gradually, and approach each other the speed reduction, reach the mesh that slows down between the grit aggregate, slow down the grit aggregate speed.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A concrete aggregate metering device, comprising:

aggregate storehouse (1), aggregate storehouse (1) top is equipped with blowing groove (2), aggregate storehouse (1) bottom is equipped with blown down tank (3), aggregate storehouse (1) inside upper end is equipped with the buffer board, and the inside lower extreme of aggregate storehouse (1) is equipped with and receives board (4) with buffer board staggered arrangement, buffer board and receiving board (4) all are to corresponding direction downward sloping, the buffer board includes bracing piece (5), pivot (6), cylinder (7), two a plurality of recess (8) of mutually supporting have all been seted up on bracing piece (5), every all be equipped with restriction spring (9) in recess (8), every restriction spring (9) upper end all is equipped with sleeve (10), and be connected with pivot (6) jointly between two corresponding sleeve (10), every on pivot (6) all be equipped with cylinder (7), a plurality of common cover is equipped with conveyer belt (11) on cylinder (7).

2. A concrete aggregate metering device as claimed in claim 1, wherein: the diameters of the rollers (7) gradually decrease along the direction that the supporting rods (5) are far away from the inner wall of the aggregate bin (1), the section shape of the buffer plate is in a downward-inclined arc shape, the discharging groove (2) is downward-inclined, and the opening position and the inclination angle of the discharging groove (2) are matched with the arc shape of the buffer plate.

3. A concrete aggregate metering device as claimed in claim 1, wherein: a plurality of herringbone raised strips (12) are uniformly distributed on the conveying belt (11).

4. A concrete aggregate metering device as claimed in claim 1, wherein: the buffer plate is in the same plane with the central axis of the receiving plate (4), the length of the receiving plate (4) is greater than that of the buffer plate, and the receiving plate (4) is provided with a receiving groove (13).

5. A concrete aggregate metering device as claimed in claim 4, wherein: the width of the receiving groove (13) gradually decreases along the direction that the receiving plate (4) is far away from the inner wall of the aggregate bin (1), and approaches towards the central axis.