Cement fineness screening equipment

Abstract

The utility model relates to the technical field of building material detection, and discloses cement fineness screening equipment which comprises a base frame and springs, the base frame is a rectangular frame, the springs are fixedly connected to all inner corners in a base frame cavity, the ends of the springs are fixedly connected with swing frames, the swing frames are in a circular tube shape, screening nets are fixedly connected in cavities of the swing frames, and the screening nets are fixedly connected with the base frame. The screening net is a net with the size fitting the inner size of a cavity of the swing frame, the outer wall face of the swing frame can be fixedly connected with the end of each spring, the linkage structure is arranged on the wall face of the bottom box and used for shaking the screening net, the linkage structure comprises a beating frame, a rotating plate and an ejection block, the beating frame is movably connected into the cavity of the swing frame, the rotating plate is arranged in the cavity of the bottom box, and the ejection block is arranged in the cavity of the swing frame. The top block is fixedly connected to the end of the rotating plate, the top of the top block can make contact with the bottom of the swing frame, and the linkage structure effectively prevents the problems that the screening net is blocked and the screening of the screening net is affected due to the fact that cement blocks at the top of the screening net by shaking the swing frame and driving the beating frame to beat the screening net.

Description

Technical Field

[0001] This utility model belongs to the field of building materials testing, specifically, it relates to a cement fineness screening device. Background Technology

[0002] Cement fineness screening is an important test item for evaluating the particle distribution of cement. Its core is to determine the amount of cement residue on a sieve with a specific aperture by means of sieve analysis.

[0003] Cement is typically screened using sieves to determine its fineness. However, commonly used sieves can become clogged after prolonged screening, and lumpy cement can also interfere with the sieve's operation when being screened.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A cement fineness screening device, comprising:

[0007] The base frame is rectangular, and a bottom box is fixedly connected to the bottom of the base frame. The bottom box is a hollow cylinder with an opening through it. Support legs are installed at the bottom of the bottom box, and a motor is fixedly connected to the center of the bottom of the bottom box.

[0008] Springs are fixedly connected to each inner corner of the base frame cavity. A swing frame is fixedly connected to the end of the spring. The swing frame is cylindrical. A screen is fixedly connected inside the cavity of the swing frame. The screen is a mesh that fits the inner size of the swing frame cavity. The outer wall of the swing frame can be fixedly connected to the end of each spring.

[0009] The linkage structure is set on the wall of the bottom box to shake the screen. The linkage structure includes: a striking frame, a rotating plate and a top block. The striking frame is movably connected to the cavity of the swing frame, the rotating plate is set in the cavity of the bottom box, and the top block is fixedly connected to the end of the rotating plate. The top of the top block can contact the bottom of the swing frame.

[0010] In a preferred embodiment of the present invention, the striking frame is rectangular, and multiple identical striking frames are evenly arranged inside the cavity of the swing frame, with one end of each striking frame able to contact the top of the screening screen.

[0011] In a preferred embodiment of this utility model, the rotating plate is a rectangular rod that can rotate within the bottom box cavity. The top block is a semi-circular block located at the top of one end of the rotating plate, and the top arc surface of the top block can lift the swing frame.

[0012] In a preferred embodiment of the present invention, the linkage structure further includes a fixed plate and a rotating shaft. The fixed plate is fixedly connected to the inner wall of the swing frame cavity, and the rotating shaft is rotatably connected to the inner wall of the bottom box cavity. The bottom of the rotating shaft can also be fixedly connected to the bottom of the rotating plate.

[0013] In a preferred embodiment of this utility model, the fixed plate is rectangular, and a circular groove is provided through the side wall of each fixed plate. A set of symmetrical fixed plates is provided on both sides of each striking frame. Cylindricals that can be inserted into the wall of the fixed plate are symmetrically installed on both sides of each striking frame. The rotating shaft is cylindrical, and the motor at the bottom of the base box can drive the rotating shaft to rotate.

[0014] In a preferred embodiment of this utility model, a support rod is fixedly connected to the top of the base frame, and a pull tube is fixedly connected to the top of the support rod, with the pull tube located directly above the swing frame.

[0015] In a preferred embodiment of this utility model, the support rod is a horizontally placed L-shaped rod, and a support rod is respectively set at the four corners of the top of the base frame. The bottom of the tube can be fixedly connected to the top of all the support rods. The tube is in the shape of an inverted funnel and has an opening at the top.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. By setting up a linkage structure, the swing frame is shaken and the striking frame is driven to beat the screening screen, which effectively prevents the screening screen from clogging and cement from accumulating on top of the screening screen, thus affecting the screening process.

[0018] 2. By installing a suction pipe and adding an exhaust fan, the fumes and dust generated during cement screening can be extracted, preventing them from affecting the health of workers.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a perspective view of the combination of the base frame and the swing frame of this utility model;

[0023] Figure 3 This is a disassembly diagram of the swing frame and base frame of this utility model;

[0024] Figure 4 This is a disassembly diagram of the striking frame and swing frame of this utility model;

[0025] Figure 5This is a cross-sectional view of the bottom box of this utility model.

[0026] In the diagram: 20, base frame; 30, bottom box; 31, spring; 32, swing frame; 33, screen; 34, fixed plate; 35, striking frame; 36, rotating shaft; 37, rotating plate; 38, top block; 40, support rod; 41, tube extraction. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0028] like Figure 1 and Figure 2 As shown, a cement fineness screening device includes: a base frame 20, which is rectangular in shape; a bottom box 30 is fixedly connected to the bottom of the base frame 20; the bottom box 30 is a hollow cylinder with an opening through the bottom; a support leg is installed at the bottom of the bottom box 30; and a motor is fixedly connected to the center of the bottom of the bottom box 30.

[0029] Spring 31 is fixedly connected to each inner corner of the cavity of the base frame 20. The end of spring 31 is fixedly connected to a swing frame 32, which is in the shape of a round tube. A screen 33 is fixedly connected inside the cavity of the swing frame 32. The screen 33 is a mesh that fits the inner size of the cavity of the swing frame 32. The outer wall of the swing frame 32 can be fixedly connected to the end of each spring 31. The motor and power supply are electrically connected. This is existing technology and will not be described in detail here.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a linkage structure is set on the wall of the bottom box 30 to shake the screening screen 33. The linkage structure includes: a striking frame 35, a rotating plate 37 and a top block 38. The striking frame 35 is movably connected to the cavity of the swing frame 32. The rotating plate 37 is set in the cavity of the bottom box 30. The top block 38 is fixedly connected to the end of the rotating plate 37. The top of the top block 38 can contact the bottom of the swing frame 32.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the striking frame 35 is rectangular, and multiple identical striking frames 35 are evenly arranged inside the cavity of the swing frame 32. One end of each striking frame 35 can contact the top of the screening screen 33. The rotating plate 37 is a rectangular rod that can rotate within the cavity of the bottom box 30. The top block 38 is a semi-circular block located at the top of one end of the rotating plate 37. The top arc surface of the top block 38 can lift the swing frame 32. The linkage structure also includes a fixed plate 34 and a rotating shaft 36. The fixed plate 34 is fixedly connected to the swing frame 32. On the inner wall of the cavity, the rotating shaft 36 is rotatably connected to the inner wall of the bottom box 30. The bottom of the rotating shaft 36 can also be fixedly connected to the bottom of the rotating plate 37. The fixed plate 34 is a rectangular plate. A circular groove is opened through the side wall of each fixed plate 34. A set of symmetrical fixed plates 34 is set on both sides of each striking frame 35. Cylindrical objects that can be inserted into the wall of the fixed plate 34 are symmetrically installed on both sides of each striking frame 35. The rotating shaft 36 is cylindrical. The motor at the bottom of the bottom box 30 can drive the rotating shaft 36 to rotate.

[0032] In practical use, firstly, pour the cement to be screened directly onto the top of the screening screen 33 inside the cavity of the swing frame 32. Then, turn on the motor. When the motor is turned on, it will drive the rotating shaft 36 to rotate. When the rotating shaft 36 rotates, it will drive the rotating plate 37 and the top block 38 to rotate below the swing frame 32. The top of the rotating plate 37 will be flush with the bottom of the swing frame 32, and the top arc surface of the top block 38 can contact the bottom of the swing frame 32. When the top block 38 contacts the bottom of the swing frame 32, the swing frame 32 will be tilted. The spring 31 can contract according to the state of the swing frame 32. The top block 38 rotates at the bottom of the swing frame 32, and the swing frame 32 can swing synchronously. As the swing frame 32 swings, it can drive the screening screen 33 to swing synchronously. The cement on the top of the screening screen 33 can fall into the cavity of the bottom box 30 through the mesh of the screening screen 33 as the screening screen 33 swings. The screened cement will be discharged from the opening at the bottom of the bottom box 30. When the swing frame 32 swings, the striking frame 35 will swing synchronously above the screening screen 33 and hit the screening screen 33. The striking frame 35 will shake the cement in the mesh of the screening screen 33 off, and the striking frame 35 will also break up the cement when it comes into contact with the clumps.

[0033] In summary, by setting up a linkage structure to shake the swing frame 32 and drive the striking frame 35 to strike the screening mesh 33, the problem of clogging of the screening mesh 33 and cement clumping on the top of the screening mesh 33, which affects the screening of the screening mesh 33, can be effectively prevented.

[0034] like Figure 1As shown, a support rod 40 is fixedly connected to the top of the base frame 20, and a tube 41 is fixedly connected to the top of the support rod 40. The tube 41 is located directly above the swing frame 32. The support rod 40 is a horizontal L-shaped rod. A support rod 40 is set at each of the four corners of the top of the base frame 20. The bottom of the tube 41 can be fixedly connected to the top of all the support rods 40. The tube 41 is in the shape of an inverted funnel and has an opening at the top.

[0035] In practical use, the opening at the top of the suction pipe 41 is connected to the exhaust fan. When screening cement with the screen 33, the power of the exhaust fan is turned on, and the exhaust fan can suck up the smoke and dust below the suction pipe 41 through the suction pipe 41.

[0036] In summary, by setting up the extraction pipe 41, an exhaust fan can be installed to suck up the fumes and dust during cement screening, preventing the fumes and dust from affecting the health of workers.

[0037] Working principle: First, the cement to be screened is poured directly onto the top of the screening screen 33 inside the cavity of the swing frame 32. Then, the motor is turned on. When the power is turned on, the motor drives the rotating shaft 36 to rotate. When the rotating shaft 36 rotates, it drives the rotating plate 37 and the top block 38 to rotate below the swing frame 32. The top of the rotating plate 37 is flush with the bottom of the swing frame 32, and the top arc surface of the top block 38 can contact the bottom of the swing frame 32. When the top block 38 contacts the bottom of the swing frame 32, the swing frame 32 will be tilted. The spring 31 can contract according to the state of the swing frame 32. Block 38 rotates at the bottom of the swing frame 32, which can swing synchronously. As the swing frame 32 swings, it can drive the screening screen 33 to swing synchronously. The cement on the top of the screening screen 33 can fall into the cavity of the bottom box 30 through the mesh of the screening screen 33 as the screening screen 33 swings. The screened cement will be discharged from the opening at the bottom of the bottom box 30. When the swing frame 32 swings, the striking frame 35 will swing synchronously above the screening screen 33 and hit the screening screen 33. The striking frame 35 will shake the cement in the mesh of the screening screen 33 off, and the striking frame 35 will also break up the cement when it comes into contact with the clumps.

[0038] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A cement fineness screening apparatus, characterized by, include: The base frame (20) is a rectangular frame. The bottom of the base frame (20) is fixedly connected to the bottom box (30). The bottom box (30) is a hollow cylinder. The bottom of the bottom box (30) has an opening. The bottom of the bottom box (30) is equipped with support legs. The bottom center of the bottom of the bottom box (30) is fixedly connected to a motor. Spring (31) is fixedly connected to each inner corner of the cavity of the base frame (20). The end of the spring (31) is fixedly connected to a swing frame (32). The swing frame (32) is in the shape of a round tube. A screen (33) is fixedly connected inside the cavity of the swing frame (32). The screen (33) is a mesh that fits the inner size of the cavity of the swing frame (32). The outer wall of the swing frame (32) can be fixedly connected to the end of each spring (31). The linkage structure is set on the wall of the bottom box (30) for shaking the screen (33). The linkage structure includes: a striking frame (35), a rotating plate (37) and a top block (38). The striking frame (35) is movably connected to the cavity of the swing frame (32). The rotating plate (37) is set in the cavity of the bottom box (30). The top block (38) is fixedly connected to the end of the rotating plate (37). The top of the top block (38) can contact the bottom of the swing frame (32).

2. A cement fineness screening apparatus according to claim 1, wherein, The striking frame (35) is rectangular. Multiple identical striking frames (35) are evenly arranged inside the cavity of the swing frame (32). One side end of each striking frame (35) can contact the top of the screening screen (33).

3. A cement fineness screening apparatus according to claim 1, wherein, The rotating plate (37) is a rectangular rod that can rotate within the cavity of the bottom box (30). The top block (38) is a semi-circular block located at the top of one end of the rotating plate (37). The top arc surface of the top block (38) can lift the swing frame (32).

4. A cement fineness screening apparatus according to claim 1, wherein, The linkage structure also includes a fixed plate (34) and a rotating shaft (36). The fixed plate (34) is fixedly connected to the inner wall of the swing frame (32), and the rotating shaft (36) is rotatably connected to the inner wall of the bottom box (30). The bottom of the rotating shaft (36) can also be fixedly connected to the bottom of the rotating plate (37).

5. A cement fineness screening apparatus according to claim 4, wherein, The fixed plate (34) is rectangular. A circular groove is opened through the side wall of each fixed plate (34). A set of symmetrical fixed plates (34) is set on both sides of each striking frame (35). Cylindrical cylinders that can be inserted into the wall of the fixed plate (34) are symmetrically installed on both sides of each striking frame (35). The rotating shaft (36) is cylindrical. The motor at the bottom of the base box (30) can drive the rotating shaft (36) to rotate.

6. A cement fineness screening apparatus according to claim 1, wherein, A support rod (40) is fixedly connected to the top of the base frame (20), and a draw tube (41) is fixedly connected to the top of the support rod (40). The draw tube (41) is located directly above the swing frame (32).

7. A cement fineness screening apparatus according to claim 6, wherein, The support rod (40) is a horizontal L-shaped rod. A support rod (40) is set at each of the four corners of the top of the base frame (20). The bottom of the tube (41) can be fixedly connected to the top of all the support rods (40). The tube (41) is in the shape of an inverted funnel and has an opening at the top.

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