Screening device for concrete raw material mixing

Abstract

The utility model relates to the technical field of concrete raw material screening, in particular to a screening device for concrete raw material mixing. According to the technical scheme, the screening device comprises a fixing frame, a screening frame and a screening net, the screening frame is movably installed in the fixing frame, a fixing plate is fixedly installed in the screening frame, the screening net is fixedly installed at the bottom of the screening frame, a supporting column is fixedly installed at the top of the screening net, and a motor is fixedly installed at the rear end of the fixing frame. Through mutual cooperation of the screening frame, the supporting column and the crushing cone, the screening frame can be driven by the motor to shake front and back, concrete raw materials on the top of the screening frame can be shaken and screened, and the crushing cone can be fixed to the top of the screening frame through the supporting column; and by means of the crushing cone, the adhered concrete raw materials during shaking can be crushed, the adhesion amount in the concrete raw materials can be reduced, and meanwhile the screening efficiency of the concrete raw materials can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete raw material screening, in particular to a screening device for mixing concrete raw materials. Background Art

[0002] Concrete is a mixture of cementitious materials, aggregates and water in appropriate proportions. It is an artificial stone obtained by casting and hardening. The main components of common concrete at present are gravel, sand and cement. Since the concrete raw materials are directly mixed, the internal residues of the mixed concrete raw materials will contain larger particles and other substances, which makes the mixing process after mixing more difficult. Among them, the "concrete raw material screening device" disclosed by the authorization announcement number "CN210935904U" has solved the problem that when construction workers mix concrete and sand in a certain proportion in advance, small spherical mixed particles will appear, which will cause difficulties in the later mixing of concrete and sand with water. Uneven mixing will affect the structural strength of the building after construction. After further retrieval, it was found that the authorization announcement number is "CN218360656U" The disclosed "a concrete raw material screening device" has a specific technical structure setting and effectively solves the problem that the current screening devices basically directly filter the mixture through the filter plate when screening, and the staff needs to load the material before filtering. There will be a lot of dust in the filtering process. Long-term inhalation of dust by the staff will cause harm to the body, and it also increases the labor of the staff and other technical disadvantages. However, in actual use, a concrete raw material screening device with a similar structure still has many defects. For example, most of the existing concrete screening devices vibrate up and down for screening, and there is a phenomenon that the concrete raw materials are vibrated out of the outside of the screening device. At the same time, when screening the concrete raw materials, the concrete raw materials are stuck together due to long-term storage, and it is not easy to fully screen them. Therefore, it is necessary to design a screening device for mixing concrete raw materials. Utility Model Content

[0003] The utility model aims to provide a screening device for mixing concrete raw materials to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for mixing concrete raw materials, comprising a fixed frame, a screening frame and a screening net, the screening frame is movably installed inside the fixed frame, a fixed plate is fixedly installed inside the screening frame, the screening net is fixedly installed at the bottom of the screening frame, a support column is fixedly installed on the top of the screening net, and a motor is fixedly installed at the rear end of the fixed frame.

[0005] By placing the fixed frame at a suitable position, the rotation of the motor can drive the eccentric shaft to rotate, and can drive the screening frame to shake synchronously; by placing concrete raw materials on the top of the screening frame and shaking the screening frame, the concrete raw materials can be driven to shake synchronously; the screening net can block large particles inside the concrete raw materials, and the concrete raw materials on the top of the screening frame can be shaken and screened; the crushing cone can crush the concrete raw materials that are adhered during shaking, and the amount of adhesion in the concrete raw materials can be reduced; the shaking of the screening frame can synchronously drive the fixed plate and the limit column to shake, and the limit column can reduce the moving speed of the concrete raw materials inside the screening frame, so that the concrete raw materials can slide to the side of the guide port at a slower speed, which can extend the screening time of the concrete raw materials during the screening process and improve the screening efficiency of the concrete raw materials.

[0006] Preferably, a vibration cavity is provided inside the fixing frame, and a material guide port is provided on one side of the fixing frame. The vibration cavity can provide space for the sieving frame to shake, and the material guide port can guide large particles to the outside.

[0007] Preferably, a sliding groove corresponding to the screening frame is provided inside the fixed frame, and a sliding block corresponding to the sliding groove is fixedly installed outside the screening frame. The sliding groove enables the screening frame to slide inside the fixed frame, and the screening frame can be limited to avoid deviation, and the sliding block enables the screening frame to slide inside the sliding groove.

[0008] Preferably, a fixing seat is fixedly installed on the outer side of the fixing frame, and the motor and the fixing frame are fixedly installed via a fixing block. The fixing seat can fix the support frame to the outer side of the fixing frame, and the fixing block can fix the motor to the rear end of the fixing frame to avoid falling.

[0009] Preferably, a support frame is fixedly installed at the bottom of the fixing seat, and a connecting rod is fixedly installed between the supporting frames. The supporting frame can support the fixing frame to improve the stability of the fixing frame, and the connecting rod can improve the structural strength of the supporting frame.

[0010] Preferably, an eccentric shaft is fixedly installed at the output end of the motor, and a connecting rod is movably installed between the eccentric shaft and the screening frame. The rotation of the eccentric shaft can drive the screening frame to shake, and the screening frame can be connected to the eccentric shaft through the connecting rod.

[0011] Preferably, a crushing cone is distributed on the outer side of the support column, and a limiting column is fixedly installed on the bottom of the fixed plate. The crushing cone can crush the sticking concrete raw materials during shaking, which can reduce the amount of adhesion in the concrete raw materials, and the limiting column can reduce the moving speed of the concrete raw materials inside the screening frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the coordination among the screening frame, the supporting column and the crushing cone, the motor can drive the screening frame to swing back and forth, and the concrete raw materials on the top of the screening frame can be shaken and screened. The crushing cone can be fixed on the top of the screening frame through the supporting column, and the concrete raw materials that stick during shaking can be crushed by the crushing cone, which can reduce the amount of adhesion in the concrete raw materials and improve the screening efficiency of the concrete raw materials.

[0014] 2. By providing mutual cooperation between the fixed plate and the limit column, the limit column can be fixed inside the screening frame through the fixed plate, and the shaking of the screening frame can synchronously drive the fixed plate and the limit column to shake. The moving speed of the concrete raw materials inside the screening frame can be reduced through the limit column, and the concrete raw materials can slide to the side of the guide port at a slower speed, which can extend the screening time of the concrete raw materials during the screening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the support column structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the limiting column structure of the utility model.

[0020] In the figure: 1. fixed frame; 101. vibration chamber; 102. sliding groove; 103. fixed seat; 104. support frame; 105. connecting rod; 106. material guide port; 2. screening frame; 201. screening net; 202. sliding block; 3. motor; 301. eccentric shaft; 302. connecting rod; 303. fixed block; 4. supporting column; 401. crushing cone; 5. fixing plate; 501. limiting column. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the utility model provides a screening device for mixing concrete raw materials, comprising a fixed frame 1, a screening frame 2 and a screening net 201, the screening frame 2 is movably installed inside the fixed frame 1, a fixing plate 5 is fixedly installed inside the screening frame 2, the screening net 201 is fixedly installed at the bottom of the screening frame 2, a supporting column 4 is fixedly installed on the top of the screening net 201, and a motor 3 is fixedly installed at the rear end of the fixed frame 1;

[0024] A vibration chamber 101 is provided inside the fixed frame 1, a material guide port 106 is provided on one side of the fixed frame 1, an eccentric shaft 301 is fixedly installed at the output end of the motor 3, a connecting rod 302 is movably installed between the eccentric shaft 301 and the screening frame 2, a crushing cone 401 is distributed on the outside of the support column 4, and a limiting column 501 is fixedly installed at the bottom of the fixed plate 5.

[0025] The working principle of the screening device for mixing concrete raw materials based on Example 1 is as follows: by placing the fixing frame 1 at a suitable position, by starting the motor 3, the rotation of the motor 3 can drive the eccentric shaft 301 to rotate, the screening frame 2 can be connected to the eccentric shaft 301 through the connecting rod 302, so that the eccentric shaft 301 can drive the screening frame 2 to shake synchronously when rotating, and the vibration chamber 101 can provide space for the shaking of the screening frame 2, by placing concrete raw materials on the top of the screening frame 2, the shaking of the screening frame 2 can drive the concrete raw materials to shake synchronously, the screening net 201 can block large particles inside the concrete raw materials, and the concrete raw materials on the top of the screening frame 2 can be shaken and screened;

[0026] The crushing cone 401 can be fixed on the top of the screening frame 2 through the supporting column 4, and the crushing cone 401 can be used to crush the concrete raw materials that are adhered during shaking, so as to reduce the amount of adhesion in the concrete raw materials. The shaking of the screening frame 2 can synchronously drive the fixing plate 5 and the limiting column 501 to shake, and the limiting column 501 can be fixed inside the screening frame 2 through the fixing plate 5. The limiting column 501 can reduce the moving speed of the concrete raw materials inside the screening frame 2, so that the concrete raw materials can slide to the side of the guide port 106 at a slower speed, and the large particles can be guided outward through the guide port 106, so as to extend the screening time of the concrete raw materials during the screening process and improve the screening efficiency of the concrete raw materials.

[0027] Embodiment 2

[0028] like Figure 1 and Figure 3As shown, the utility model proposes a screening device for mixing concrete raw materials. Compared with the first embodiment, this embodiment also includes: a sliding groove 102 corresponding to the screening frame 2 is opened inside the fixed frame 1, a sliding block 202 corresponding to the sliding groove 102 is fixedly installed on the outside of the screening frame 2, a fixed seat 103 is fixedly installed on the outside of the fixed frame 1, the motor 3 and the fixed frame 1 are fixedly installed through a fixed block 303, a support frame 104 is fixedly installed on the bottom of the fixed seat 103, and a connecting rod 105 is fixedly installed between the support frames 104.

[0029] In this embodiment, Figure 3 As shown, the screening frame 2 can slide inside the fixed frame 1 through the sliding groove 102, and the screening frame 2 can be limited to avoid deviation. The screening frame 2 can slide inside the sliding groove 102 through the sliding block 202, the support frame 104 can be fixed to the outside of the fixed frame 1 through the fixing seat 103, and the motor 3 can be fixed to the rear end of the fixed frame 1 through the fixing block 303 to avoid falling; Figure 1 As shown, the support frame 104 can support the fixing frame 1 to improve the stability of the fixing frame 1 , and the connecting rod 105 can improve the structural strength of the support frame 104 .

[0030] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A screening device for mixing concrete raw materials, comprising a fixed frame (1), a screening frame (2) and a screening net (201), characterized in that: A screening frame (2) is movably mounted inside the fixed frame (1), a fixed plate (5) is fixedly mounted inside the screening frame (2), a screening net (201) is fixedly mounted at the bottom of the screening frame (2), a supporting column (4) is fixedly mounted on the top of the screening net (201), a motor (3) is fixedly mounted at the rear end of the fixed frame (1), an eccentric shaft (301) is fixedly mounted at the output end of the motor (3), a connecting rod (302) is movably mounted between the eccentric shaft (301) and the screening frame (2), a crushing cone (401) is distributed on the outer side of the supporting column (4), and a limiting column (501) is fixedly mounted at the bottom of the fixed plate (5).

2. A screening device for mixing concrete raw materials according to claim 1, characterized in that: A vibration chamber (101) is provided inside the fixed frame (1), and a material guide port (106) is provided on one side of the fixed frame (1).

3. The screening device for mixing concrete raw materials according to claim 1, characterized in that: A sliding groove (102) corresponding to the screening frame (2) is provided inside the fixed frame (1), and a sliding block (202) corresponding to the sliding groove (102) is fixedly installed on the outside of the screening frame (2).

4. A screening device for mixing concrete raw materials according to claim 1, characterized in that: A fixing seat (103) is fixedly mounted on the outer side of the fixing frame (1), and the motor (3) and the fixing frame (1) are fixedly mounted via a fixing block (303).

5. A screening device for mixing concrete raw materials according to claim 4, characterized in that: A support frame (104) is fixedly mounted on the bottom of the fixing seat (103), and a connecting rod (105) is fixedly mounted between the support frames (104).

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