A raw material screening device for concrete production

Abstract

The utility model relates to concrete production technical field especially for a raw material screening device for concrete production, including sieve plate, is equipped with lug plate cover in the four corners of sieve plate, the outer wall of lug plate cover and the inner wall of limiting component movable sleeve joint, the one side of limiting component is equipped with power component, one end of power component rotatably connects with transmission component, power component and transmission component are U shape distribution, power component is about the horizontal center line of sieve plate symmetry distribution. The device can screen the raw material needed in concrete production, and can adopt manual rotation handle or motor as power source according to need, make limiting component of sieve plate both sides can synchronize with multiple lug plate cover of sieve plate separate, realize the quick assembly and disassembly of sieve plate, improve the maintenance convenience of screening device, can save the time of refitting, also indirectly reduced downtime, improved the production efficiency of concrete production.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, specifically to a raw material screening device for concrete production. Background Technology

[0002] Ordinary cement concrete is made by mixing cement, sand, coarse gravel, and fine gravel in a certain proportion. Ordinary concrete is a composite material made by mixing, molding, and curing ordinary cement as a binder, ordinary sand and gravel as aggregates, and ordinary water as a raw material, according to a specially designed mix proportion. In the cement production process, it is often necessary to screen the raw materials for concrete production to select those that meet the production requirements and standards.

[0003] Chinese utility model patent with announcement number CN222511111 U discloses a raw material screening device for concrete production and processing, which includes "a sleeve 25 that is subsequently rotated clockwise. When the sleeve 25 rotates, the sleeve 25 is provided with positive and negative threads, so that the two threaded rods 24 connected to the threads can move and rotate outwards". However, this device uses the internal threads of the sleeve to drive the threaded rods to rotate in order to realize the detachable screen plate. The rotation of the sleeve requires sufficient force, making it very laborious to operate. Utility Model Content

[0004] The purpose of this invention is to provide a raw material screening device for concrete production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a raw material screening device for concrete production, including a screen plate, ear plate sleeves provided at the four corners of the screen plate, the outer wall of the ear plate sleeves being movably sleeved with the inner wall of a limiting component, a power component being provided through one side of the limiting component, a transmission component being rotatably connected to one end of the power component, the power component and the transmission component being distributed in a U-shape, and the power component being symmetrically distributed about the horizontal center line of the screen plate;

[0006] The power assembly includes a throttle, the output end of which is rotatably connected to a two-way lead screw, and the outer wall of the two-way lead screw is engaged with an L-shaped limiter, the outer wall of which is movably sleeved with the inner wall of the ear plate sleeve.

[0007] The transmission assembly includes a power chamber, which contains two sets of main bevel gears and secondary bevel gears. One end of each main bevel gear is rotatably connected to a two-way lead screw. The main bevel gears and secondary bevel gears are connected to the inner wall of the power chamber via a gear carrier. A transmission shaft is fixedly connected to the central inner wall of each of the two secondary bevel gears.

[0008] The beneficial effects of this utility model are as follows: by using the combination of the throttle, the two-way lead screw, multiple sets of bevel gears and the transmission shaft, the adjustment of multiple sets of limiters can be conveniently realized, thereby quickly realizing the insertion, fixing and separation of the screen plate, so as to improve the efficiency of screen plate retrieval.

[0009] To enable the sieve plate itself to be detachable:

[0010] The screen plate is further configured such that: the screen plate includes a screen plate body, and a plurality of ear plate sleeves are symmetrically distributed on both sides of the screen plate body; the ear plate sleeves have through holes on opposite sides, and the inner wall of the through hole of the ear plate sleeve is movably sleeved with the outer wall of the L-shaped limiter.

[0011] By adopting the above technical solution, the sieve plate can be quickly disassembled and assembled using multiple sets of ear plate sleeves.

[0012] To achieve limiting and fixing of the inserted sieve plate:

[0013] The setting is further configured such that: the limiting component includes a limiting chamber, and the two ends of the limiting chamber are separated into ear plate chambers by annular partitions; the limiting chamber is provided with a limiter sleeve in the middle, and the side of the limiter sleeve away from the screen plate is provided with a sliding groove.

[0014] By adopting the above technical solution, the combination of the limiter sleeve, ear plate compartment and slide groove can provide space for the L-shaped limiter to limit and fix the sieve plate.

[0015] To achieve a rational layout of the limit and power structure to save space:

[0016] The device is further configured such that the inner wall of the limiter sleeve is movably connected to the outer wall of the L-shaped limiter, and a screw chamber is provided inside the limit chamber on the side near the slide groove, with a bidirectional screw rotatably connected to the inner wall of the opposite side of the screw chamber.

[0017] By adopting the above technical solutions, the reasonable layout of the limiting structure and the power structure can save space while also achieving the main functions.

[0018] To achieve pluggable limiting between the ear plate sleeve and the limiting chamber:

[0019] The following configuration is further provided: the inner diameter of the through hole of the ear plate sleeve is consistent with the outer diameter of the limiting end of the L-shaped limiter, and the outer diameter of the ear plate sleeve is consistent with the inner diameter of the ear plate compartment.

[0020] By adopting the above technical solution, the ear plate sleeve and the limiting chamber can be accurately matched and positioned for insertion.

[0021] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main body of the present utility model;

[0023] Figure 2 This is a schematic diagram of the sieve plate of this utility model;

[0024] Figure 3 This is a partial cross-sectional view of the limiting component and the power component of this utility model;

[0025] Figure 4 This is a partial cross-sectional view of the transmission component of this utility model.

[0026] In the diagram: 1. Screen plate; 101. Screen plate body; 102. Ear plate sleeve; 2. Limiting assembly; 201. Limiting chamber; 202. Ear plate chamber; 203. Limiter sleeve; 204. Slide groove; 205. Screw chamber; 3. Power assembly; 301. Throttle; 302. Double-acting screw; 303. L-shaped limiter; 4. Transmission assembly; 401. Power chamber; 402. Main bevel gear; 403. Secondary bevel gear; 404. Gear frame; 405. Drive shaft. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0028] Please see Figures 1 to 4 A raw material screening device for concrete production includes a screen plate 1, with ear plate sleeves 102 at the four corners of the screen plate 1. The outer wall of the ear plate sleeves 102 is movably sleeved with the inner wall of the limiting component 2. A power component 3 is provided through one side of the limiting component 2. A transmission component 4 is rotatably connected to one end of the power component 3. The power component 3 and the transmission component 4 are distributed in a U-shape. The power component 3 is symmetrically distributed about the horizontal center line of the screen plate 1.

[0029] The power assembly 3 includes a throttle 301, the output end of which is rotatably connected to a two-way lead screw 302, and the outer wall of the two-way lead screw 302 is engaged with an L-shaped limiter 303, the outer wall of the L-shaped limiter 303 being movably sleeved with the inner wall of the ear plate sleeve 102.

[0030] The transmission assembly 4 includes a power chamber 401, which contains two sets of main bevel gears 402 and secondary bevel gears 403. One end of the main bevel gear 402 is rotatably connected to a two-way lead screw 302. The main bevel gear 402 and the secondary bevel gear 403 are connected to the inner wall of the power chamber 401 through a gear frame 404. A transmission shaft 405 is fixedly connected to the inner wall of the center of the two secondary bevel gears 403.

[0031] In this embodiment, as Figure 2 and Figure 3As shown, the sieve plate 1 includes a sieve plate body 101, and several ear plate sleeves 102 are symmetrically distributed on both sides of the sieve plate body 101. Through holes are passed through the opposite sides of the ear plate sleeves 102, and the inner wall of the through hole of the ear plate sleeve 102 is movably sleeved with the outer wall of the L-shaped limiter 303.

[0032] In this embodiment, as Figure 3 As shown, the limiting component 2 includes a limiting chamber 201, and the two ends of the limiting chamber 201 are separated into ear plate chambers 202 by annular partitions. The limiting chamber 201 is provided with a limiter sleeve 203 in the middle, and the limiter sleeve 203 is provided with a sliding groove 204 on the side away from the screen plate 1.

[0033] In this embodiment, as Figure 3 As shown, the inner wall of the limit sleeve 203 is movably sleeved with the outer wall of the L-shaped limiter 303, and the limit chamber 201 is provided with a screw chamber 205 on the side near the slide groove 204. The inner wall of the screw chamber 205 on the opposite side is rotatably connected to a bidirectional screw 302.

[0034] In this embodiment, as Figure 2 and Figure 3 As shown, the inner diameter of the through hole of the ear plate sleeve 102 is consistent with the outer diameter of the limiting end of the L-shaped limiter 303, and the outer diameter of the ear plate sleeve 102 is consistent with the inner diameter of the ear plate compartment 202.

[0035] The working process of this raw material screening device for concrete production is as follows:

[0036] First, the power chamber 401 and a set of limiting chambers 201 are arranged in a U-shape and fixed to the top periphery of the receiving box by welding or other methods. Multiple ear plates 102 on opposite sides of the screen plate body 101 are then fitted with the ear plates 202 of the limiting chambers 201 on both sides. The through holes of the ear plates 102 are aligned with the limiting sleeves 203. The throttle 301 is manually turned, or a servo motor is used as the power source, which drives the connected bidirectional lead screw 302 to rotate. The bidirectional lead screw 302 drives a set of main bevel gears 402 and secondary bevel gears 402 connected to it. The bevel gear 403 rotates, and under the action of the transmission shaft 405, another set of main bevel gears 402 and secondary bevel gears 403 rotate. Another bidirectional lead screw 302 also rotates, driving multiple sets of symmetrically distributed L-shaped limiters 303 to move to both ends of the limiter sleeve 203, so that the L-shaped limiters 303 are engaged with the ear plate sleeve 102 in the ear plate compartment 202 to achieve the limiting and fixing of the screen plate body 101. Then, the handle 301 is rotated in the opposite direction to achieve the separation operation of the L-shaped limiters 303 from the screen plate body 101.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A raw material screening device for concrete production, comprising a sieve plate (1), characterized in that: The four corners of the sieve plate (1) are provided with ear plate sleeves (102). The outer wall of the ear plate sleeves (102) is movably sleeved with the inner wall of the limiting component (2). A power component (3) is provided through one side of the limiting component (2). A transmission component (4) is rotatably connected to one end of the power component (3). The power component (3) and the transmission component (4) are distributed in a U-shape. The power component (3) is symmetrically distributed about the horizontal center line of the sieve plate (1). The power assembly (3) includes a throttle (301), the output end of which is rotatably connected to a two-way lead screw (302), and the outer wall of the two-way lead screw (302) is engaged with an L-shaped limiter (303), the outer wall of which is movably sleeved with the inner wall of the ear plate sleeve (102). The transmission assembly (4) includes a power chamber (401), which contains two sets of main bevel gears (402) and secondary bevel gears (403). One end of the main bevel gear (402) is rotatably connected to a two-way lead screw (302). The main bevel gear (402) and the secondary bevel gear (403) are connected to the inner wall of the power chamber (401) through a gear frame (404). A transmission shaft (405) is fixedly connected to the inner wall of the center of the two secondary bevel gears (403).

2. The raw material screening device for concrete production as described in claim 1, characterized in that: The sieve plate (1) includes a sieve plate body (101), and several ear plate sleeves (102) are symmetrically distributed on both sides of the sieve plate body (101). The ear plate sleeves (102) have through holes on opposite sides, and the inner wall of the through hole of the ear plate sleeve (102) is movably sleeved with the outer wall of the L-shaped limiter (303).

3. The raw material screening device for concrete production as described in claim 1, characterized in that: The limiting component (2) includes a limiting chamber (201), and the two ends of the limiting chamber (201) are separated into ear plate chambers (202) by annular partitions. The limiting chamber (201) is provided with a limiter sleeve (203) in the middle, and a sliding groove (204) is provided on the side of the limiter sleeve (203) away from the sieve plate (1).

4. The raw material screening device for concrete production as described in claim 3, characterized in that: The inner wall of the limiter sleeve (203) is movably sleeved with the outer wall of the L-shaped limiter (303), and the limiter compartment (201) is provided with a screw compartment (205) on the side near the slide groove (204), and a bidirectional screw (302) is rotatably connected to the inner wall of the opposite side of the screw compartment (205).

5. The raw material screening device for concrete production as described in claim 1, characterized in that: The inner diameter of the through hole of the ear plate sleeve (102) is consistent with the outer diameter of the limiting end of the L-shaped limiter (303), and the outer diameter of the ear plate sleeve (102) is consistent with the inner diameter of the ear plate compartment (202).

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