Aggregate feeding device for concrete production

Abstract

The utility model relates to an aggregate feeding device for concrete production. The aggregate feeding device comprises an aggregate storage bin and a feeding port formed in the aggregate storage bin, the aggregate storage bin is provided with an aggregate feeding mechanism, the aggregate feeding mechanism is composed of a driving motor, a material blocking tile, a plurality of digging hoppers and a material receiving groove, one end of the material receiving groove is a bin wall penetrating through the aggregate storage bin, and the digging hoppers are distributed on the periphery of the material receiving groove in a circumferential array mode. The driving motor is in transmission connection with a speed reducer, a main shaft is matched with the bin wall of the aggregate storage bin, a rotating disc is arranged at the inner end of the main shaft, one end of the digging hopper is fixed to the rotating disc, a feeding screw is further coaxially fixed to the rotating disc and located in the material receiving groove, and the material blocking tiles are connected with the inner wall of the front side and the inner wall of the rear side of the aggregate storage bin. The whole cover covers the upper half part of a rotating path of the digging hopper. In the aggregate pushing process of the feeding screw, no protruding part exists on the conveying path of the aggregate, so that the impact borne by the feeding screw during operation is small, and the service life of the feeding screw can be prolonged to a great extent.

Description

Technical Field

[0001] The utility model relates to a particle feeding device, in particular to an aggregate feeding device for concrete production. Background Art

[0002] Concrete is generally composed of cement, water and aggregates. Aggregates refer to granular loose materials that act as a skeleton or filler in concrete. They play a vital role in the performance of concrete, such as: bearing pressure and resisting impact, diffusing stress, forming a bonding interface, affecting concrete performance, and saving costs and resources.

[0003] During the concrete preparation process, cement, aggregate, and water are typically poured into a mixing device in a specific proportion. To improve efficiency and save labor costs, existing concrete production companies are equipped with automatic aggregate loading equipment for automatically feeding aggregate. Automatic aggregate loading equipment generally uses a push screw to achieve automated loading. Push screws offer the advantages of simple structure and reliable feeding. However, when pushing aggregate, the push screw is fitted with a sleeve. When the aggregate enters the sleeve, it is prone to collision with the opening of the sleeve. Due to the poor fluidity of the aggregate itself, the collision generates high pressure, which over time causes significant wear on both the sleeve and the push screw. Summary of the Invention

[0004] The utility model provides an aggregate feeding device for concrete production, which solves the problem in the prior art that when a pushing screw is used to transport aggregate, the device itself will be greatly worn.

[0005] The above technical problems of the present invention are mainly solved by the following technical solutions: a feeding device for aggregates used in concrete production, comprising an aggregate storage bin and a feeding port provided thereon, an aggregate feeding mechanism provided in the lower area of ​​the interior of the aggregate storage bin, the aggregate feeding mechanism consisting of a driving motor, a material blocking shoe, a digging hopper and a material receiving trough, the material receiving trough being horizontally arranged, one end of which is a bin wall penetrating the aggregate storage bin, the digging hopper being provided with a plurality of hoppers distributed in a circular array around the material receiving trough, the digging hopper being an arc-shaped cross section The columnar structure, the driving motor is arranged on the outside of the aggregate storage bin, and the output end thereof is connected to the reducer for transmission. A main shaft is passed through the bin wall of the aggregate storage bin for rotation. A turntable is provided at the inner end of the main shaft. One end of the digging hopper is fixed on the turntable, and the outer end of the main shaft is connected to the output end of the reducer for transmission. A feeding screw is also coaxially fixed on the turntable, and the feeding screw is located in the material receiving trough. The material blocking shoe is connected to the front and rear inner walls of the aggregate storage bin, and covers the upper half of the rotation path of the digging hopper as a whole.

[0006] The aggregate storage bin is used to store aggregates, the feeding port is used to replenish aggregates, and the aggregate feeding mechanism can transport the aggregates in the aggregate storage bin to the outside. The specific operating principle of the aggregate feeding mechanism is: taking advantage of the poor fluidity of the aggregate itself, the utility model is provided with a blocking tile, so that the aggregate located in the area wrapped by the blocking tile cannot flow in independently, and then when the driving motor drives the main shaft to rotate in the forward direction, the hopper can scoop up the aggregate on the lower side and gradually rotate it upward. During the process, the aggregate shovel will tilt, and the aggregate will pour into the receiving trough. At the same time, the feeding screw is also in a rotating state, which can push the aggregate in the receiving trough to be transported outward. Through the above technical solution, when the feeding screw pushes the aggregate, there is no protruding part on the conveying path of the aggregate, so the feeding screw is less impacted during operation, which can greatly extend its service life.

[0007] Furthermore, a plurality of shovel teeth are fixed to the shoveling end of the aggregate shovel. The shovel teeth are made of a wear-resistant high-strength alloy material and have a triangular shape, which has the effect of reducing resistance when shoveling aggregate.

[0008] Furthermore, the bottom of the aggregate storage bin is equipped with a horizontal array of V-shaped tiles. Drainage channels are formed between adjacent V-shaped tiles, and inverted V-shaped tiles are placed above two adjacent V-shaped tiles, completely covering the drainage channels. These inverted V-shaped tiles and V-shaped tiles support the aggregate within the bin. Compared to a flat plate structure, the V-shaped structure offers greater strength and bending resistance, making it more effective at carrying heavy loads. This structure also effectively prevents aggregate spillage and provides drainage, helping to keep the aggregate dry.

[0009] Therefore, compared with the existing technology, the present invention has the following characteristics: 1. When the feeding screw pushes the aggregate, there is no protruding part on the aggregate conveying path, so the feeding screw is subjected to less impact during operation, which can greatly extend its service life; 2. The driving structure is relatively simple and has high reliability; 3. The bottom of the aggregate storage bin has a good load-bearing effect and a drainage effect, which is conducive to keeping the aggregate dry. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attachment Figure 1 It is a structural schematic diagram of the utility model;

[0011] Attachment Figure 2 It is a structural diagram of the aggregate placing mechanism;

[0012] Attachment Figure 3 It is a schematic diagram of the bottom structure of the aggregate storage bin. DETAILED DESCRIPTION

[0013] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0014] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0015] Example 1: See Figure 1 and Figure 2 A feeding device for aggregates used in concrete production includes an aggregate storage bin 100 and a feeding port 110 provided thereon. The main body of the aggregate storage bin is a rectangular parallelepiped structure. An aggregate feeding mechanism 200 is provided in the lower area of ​​the interior of the aggregate storage bin. The aggregate feeding mechanism is composed of a drive motor 210, a material blocking shoe 220, a digging hopper 230 and a material receiving trough 240. The material receiving trough is horizontally arranged, one end of which is a rear silo wall that passes through the aggregate storage bin. There are 8 digging hoppers distributed in a circular array around the material receiving trough. The digging hopper is a columnar structure with an arc-shaped cross section. The drive motor is arranged in the aggregate storage bin. The outside of the aggregate storage bin has a speed reducer 250 connected to its output end for transmission. A main shaft 260 is rotatably mounted on the front wall of the aggregate storage bin. A bearing 261 is installed between the main shaft and the bin wall. A turntable 270 is provided at the inner end of the main shaft. One end of the digging hopper is fixed on the turntable. The outer end of the main shaft is transmission-connected to the output end of the speed reducer. A feeding screw 280 is also coaxially fixed on the turntable. The feeding screw is located in the receiving trough. A baffle plate 290 is provided at the inner end of the receiving trough. The baffle plate is close to the turntable but not fitted. The baffle tile is connected to the front and rear inner walls of the aggregate storage bin and covers the upper half of the rotating path of the digging hopper as a whole.

[0016] The aggregate storage bin is used to store aggregates, the feeding port is used to replenish aggregates, and the aggregate feeding mechanism can transport the aggregates in the aggregate storage bin to the outside. The specific operating principle of the aggregate feeding mechanism is: taking advantage of the poor fluidity of the aggregate itself, this embodiment is provided with a blocking tile, so that the aggregate located in the area wrapped by the blocking tile cannot flow in independently, and then when the driving motor drives the main shaft to rotate in the forward direction, the digging hopper can scoop up the aggregate on the lower side and gradually rotate it upward. During the process, the aggregate shovel will tilt, and the aggregate will pour into the receiving trough. At the same time, the feeding screw is also in a rotating state, which can push the aggregate in the receiving trough to be transported outward. Through the above technical solution, when the feeding screw pushes the aggregate, there is no protruding part on the conveying path of the aggregate, so the feeding screw is less impacted during operation, which can greatly extend its service life.

[0017] See Figure 2 The shovel end of the aggregate shovel is fixed with a plurality of shovel teeth 231. The material of the shovel teeth is a wear-resistant high-strength alloy material, and the shape of the shovel teeth is triangular, which has the effect of reducing the resistance when shoveling aggregate.

[0018] See Figure 3 The bottom of the aggregate storage bin is equipped with a horizontal array of V-shaped tiles 120. Drainage channels 130 are formed between adjacent V-shaped tiles. Inverted V-shaped tiles 140 are placed above each of these tiles, completely covering the drainage channels. The gaps between these tiles are approximately 2 to 4 mm. These V-shaped tiles support the aggregate within the bin. Compared to flat structures, the V-shaped structure offers greater strength and bending resistance, making it more effective at carrying heavy loads. This structure also effectively prevents aggregate spillage and provides drainage, helping to keep the aggregate dry.

[0019] It is obvious to those skilled in the art that the present invention can be modified in many ways, and such modifications are not considered to depart from the scope of the present invention. All such modifications obvious to those skilled in the art are intended to be included within the scope of the present claims.

Claims

1. A feeding device for aggregates used in concrete production, characterized in that: The cam is provided with a plurality of rollers, each of which is connected to the roller coaster and has a plurality of rollers connected to the roller coaster. The roller coaster has a plurality of rollers connected to the roller coaster and a plurality of rollers connected to the roller coaster. When the driving motor drives the main shaft to rotate in the forward direction, the digging hopper can scoop up the aggregate on the lower side and dump it into the receiving trough. At the same time, the feeding screw is also in a rotating state, which can push the aggregate in the receiving trough to be transported outward.

2. The aggregate feeding device for concrete production according to claim 1, characterized in that: A plurality of shovel teeth are fixed on the shoveling end of the aggregate shovel.

3. The aggregate feeding device for concrete production according to claim 1 or 2, characterized in that: The bottom of the aggregate storage bin is provided with a number of V-shaped tiles distributed in a horizontal array, with drainage grooves formed between adjacent V-shaped tiles. The upper sides of two adjacent V-shaped tiles are also covered with inverted V-shaped tiles, which completely cover the drainage grooves.

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