Adjustable river sand multi-stage screening equipment

Abstract

The utility model relates to the technical field of building automation, and discloses adjustable river sand multistage screening equipment which comprises a main shell and cylindrical cavities, the two cylindrical cavities are formed in the two sides of the main shell respectively, and winding rollers are movably connected between the front portions and the rear portions of the inner sides of the cylindrical cavities. A cloth piece is movably wound between one sides of the winding roller rod bodies, and a screen is fixed to the center of the interior of the cloth piece. According to the adjustable river sand multi-stage screening equipment, a winding roller is movably connected between the front portion and the rear portion of the inner side of a cylindrical cavity, the top of a material box faces the inner side of a main shell, sand grains are put into the main shell from a top plate, four sets of servo motors are started, and the winding roller connected with output shafts of the servo motors twitches wound cloth pieces from the left direction and the right direction; the screen cloth in the cloth piece is continuously shaken by matching with the movable roll shaft in the support, meshes of the upper screen cloth and the lower screen cloth become smaller from large, sundries of different particle sizes can be intercepted, and the problem that the screening effect is single is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building automation, in particular to an adjustable river sand multi-stage screening device. Background Art

[0002] Building automation covers a wide range, including heating, water supply and drainage, elevators, enclosures and other structures. The main raw material of these buildings is concrete. The river sand mixed in it can enhance the stability of the structural solidified soil. In order to ensure that the particle size of the river sand is uniform, screening equipment is needed to clean the sand.

[0003] Previous screening equipment used a horizontal plate with a gauze screen for particle screening. Screening solely by relying on the gravity of the sand particles themselves could lead to blockage, lack of shaking power, and the single piece of gauze could not move, making it difficult to improve screening efficiency.

[0004] Now, a new type of adjustable river sand multi-stage screening equipment is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable river sand multi-stage screening device to solve the problem of single screening effect proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable river sand multi-stage screening equipment, comprising a main shell and a cylindrical chamber, two groups of cylindrical chambers are respectively arranged inside the two sides of the main shell, and a winding roller is movably connected between the front and back of the inner side of the cylindrical chamber, a cloth piece is movably wound between one side of the winding roller rod body, and a screen is fixed at the center of the inside of the cloth piece, two groups of brackets are respectively arranged between the front and back of the two sides inside the main shell, and a roller shaft is movably connected between the front and back of the bracket, two groups of servo motors are installed on the left and right sides of the front end of the outside of the main shell, a through groove is horizontally arranged between the two sides of the bottom of the main shell, and balls are movably embedded on both sides of the top of the through groove, a material box is horizontally inserted in the through groove, and casters are installed at the four corners of the bottom of the material box.

[0007] Furthermore, the output shaft of the servo motor is fixedly connected to the front end of the winding roller, and both sides of the cloth piece are movably wound on the symmetrical winding rollers.

[0008] Furthermore, the roller is horizontally arranged on one side of the winding roller, and the cloth piece is overlapped above the shaft of the roller.

[0009] Preferably, a top plate is movably connected to the top of the main shell, and a circular groove is provided at the center of the top plate, screw holes are provided around the edge of the bottom of the top plate, positioning blocks are fixed to the tops of both sides of the main shell, and bolts are engaged and connected to the inner sides of the positioning blocks, a semicircular frame is movably connected between the centers of the front and rear ends of the top plate, and a shielding cover is fixed between the right side of the semicircular frame and the top plate.

[0010] Furthermore, the top of the bolt is embedded in the screw hole, and the inner side of the positioning block is provided with a thread matching the bolt.

[0011] Furthermore, the top plate can rotate horizontally on the top of the main shell, and the circular groove and the main shell are in the same vertical plane.

[0012] Preferably, two groups of screw rods are longitudinally installed at the rear of the main shell, and two groups of shaft sleeves are sleeved on the outside of the screw rods, a balance rod is transversely fixed between one side of the shaft sleeve, a rod body is fixed at the front end of the shaft sleeve, and two groups of drive motors are installed at the top of the rear interior of the main shell.

[0013] Furthermore, the output shaft of the driving motor is fixedly connected to the top of the screw rod, and the bushings are symmetrically fixed on both sides of the balance rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the adjustable river sand multi-stage screening equipment not only realizes multi-stage screening of sand particles and adjustment of the feeding direction, but also avoids mesh blockage;

[0015] (1) By movably connecting the winding roller between the front and back of the inner side of the cylindrical chamber, the material box with casters is pushed horizontally into the through slot at the bottom of the main shell, so that the top of the material box faces the inside of the main shell, and sand is thrown into the main shell from the top plate. The four sets of servo motors are started, and the winding rollers connected to the output shafts of the servo motors pull the wound cloth pieces from the left and right directions, and the roller shaft inside the bracket continuously shakes the screen in the cloth piece. The mesh holes of the screen at the upper and lower places change from large to small, which can intercept debris of different particle sizes. After the end, it can be disassembled and cleaned;

[0016] (2) A circular groove is provided at the center of the top plate, and the positioning blocks on both sides of the main shell are connected with bolts by means of internal threaded engagement. The top plate above can be rotated to open the semicircular frame according to the direction of sand delivery, and the folded shielding cover is pulled up to prevent sand and dust from being raised when dumping. At this time, the bolt needs to be turned so that the top of the rod body is embedded in the screw hole for positioning, which can prevent the top plate from shaking and can also be adjusted according to the direction of the conveyor belt for delivering sand;

[0017] (3) By fixing a rod at the front end of the sleeve, the two sets of drive motors at the top rear of the main shell are turned on at regular intervals, and the longitudinal screw is rotated. Under the restriction of the balance rod, the sleeve outside the screw can be vertically lifted and lowered. Under the guidance of the inner thread of the sleeve, the two sets of screens are knocked by the rod that is lifted up and down to avoid clogging of the screen mesh and improve the passing rate of sand particles. There is no need to stop the operation of the device for separate cleaning, and the cleaning operation can be achieved during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 A partial cross-section at the center is an enlarged structural diagram;

[0020] Figure 3 This is a schematic diagram of the top plate structure of the utility model from a top view;

[0021] Figure 4 It is a schematic diagram of the top view structure of the rod body of the utility model.

[0022] In the figure: 1. main shell; 2. servo motor; 3. cylindrical chamber; 4. winding roller; 5. positioning block; 6. top plate; 7. screw hole; 8. semicircular frame; 9. shielding cover; 10. bolt; 11. cloth piece; 12. screen; 13. screw rod; 14. balance rod; 15. bushing; 16. rod body; 17. ball bearing; 18. material box; 19. caster; 20. through slot; 21. driving motor; 22. roller shaft; 23. bracket; 24. circular slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-4, an adjustable river sand multi-stage screening equipment, including a main shell 1 and a cylindrical chamber 3, two groups of cylindrical chambers 3 are respectively arranged inside the two sides of the main shell 1, and a winding roller 4 is movably connected between the front and back of the inner side of the cylindrical chamber 3, a cloth piece 11 is movably wound between one side of the rod body of the winding roller 4, and a screen 12 is fixed at the center of the cloth piece 11, two groups of brackets 23 are respectively set between the front and back of the two sides inside the main shell 1, and a roller shaft 22 is movably connected between the front and back of the bracket 23, two groups of servo motors 2 are installed on the left and right sides of the front end of the outside of the main shell 1, a through groove 20 is transversely arranged between the two sides of the bottom of the main shell 1, and both sides of the top of the through groove 20 are movably inlaid with balls 17, a material box 18 is transversely inserted in the through groove 20, and casters 19 are installed at the four corners of the bottom of the material box 18;

[0025] The output shaft of the servo motor 2 is fixedly connected to the front end of the winding roller 4, and both sides of the cloth piece 11 are movably wound on the symmetrical winding roller 4. The roller shaft 22 is horizontally arranged on one side of the winding roller 4, and the cloth piece 11 is overlapped above the shaft body of the roller shaft 22;

[0026] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the material box 18 with casters 19 is pushed horizontally into the through groove 20 at the bottom of the main shell 1, so that the top of the material box 18 faces the inside of the main shell 1, and sand is thrown into the main shell 1 from the top plate 6. The four groups of servo motors 2 are started, and the winding rollers 4 connected to the output shafts of the servo motors 2 pull the wound cloth piece 11 from the left and right directions, and the movable roller shaft 22 inside the bracket 23 continuously shakes the screen 12 in the cloth piece 11, and the mesh holes of the screen 12 at the upper and lower places change from large to small, thereby realizing multi-stage screening processing.

[0027] Embodiment 2: A top plate 6 is movably connected to the top of the main shell 1, and a circular groove 24 is provided at the center of the top plate 6, and screw holes 7 are provided around the edge of the bottom of the top plate 6. Positioning blocks 5 are fixed to the tops of both sides of the main shell 1, and bolts 10 are engaged and connected to the inner side of the positioning blocks 5. A semicircular frame 8 is movably connected between the centers of the front and rear ends of the top plate 6, and a shielding cover 9 is fixed between the right side of the semicircular frame 8 and the top plate 6;

[0028] The top of the bolt 10 is embedded in the screw hole 7, and the inner side of the positioning block 5 is provided with a thread matching the bolt 10. The top plate 6 can rotate horizontally on the top of the main shell 1, and the circular groove 24 is in the same vertical plane as the main shell 1;

[0029] Specifically, Figure 1 and Figure 3As shown, the positioning blocks 5 on both sides of the main shell 1 are connected with bolts 10 by means of internal threaded engagement, and the upper top plate 6 can be rotated to open the semicircular frame 8 according to the direction of sand delivery, and pull up the folded shielding cover 9 to prevent sand and dust from being raised during dumping. At this time, it is necessary to screw the bolt 10 so that the top of the rod body is embedded in the screw hole 7 for positioning, which can prevent the top plate 6 from shaking.

[0030] Embodiment 3: Two sets of screw rods 13 are longitudinally installed at the rear of the main housing 1, and two sets of sleeves 15 are sleeved on the outside of the screw rods 13. A balance rod 14 is transversely fixed between one side of the sleeve 15, and a rod body 16 is fixed at the front end of the sleeve 15. Two sets of drive motors 21 are installed at the top of the rear of the main housing 1. The output shaft of the drive motor 21 is fixedly connected to the top of the screw rod 13, and the sleeves 15 are symmetrically fixed on both sides of the balance rod 14.

[0031] Specifically, Figure 1 and Figure 4 As shown, the two sets of drive motors 21 at the top rear of the main shell 1 are turned on at a fixed time, and the longitudinal screw rod 13 is rotated. Under the restriction of the balance rod 14, the shaft sleeve 15 outside the screw rod 13 can be vertically lifted and lowered. Under the guidance of the internal thread of the shaft sleeve 15, the two sets of screens 12 are knocked by the rod body 16 that is lifted and lowered, so that the mesh holes of the screen 12 are prevented from being blocked, thereby improving the passing rate of sand particles.

[0032] Working principle: When the utility model is in use, the positioning blocks 5 on both sides of the main shell 1 are connected with bolts 10 by means of internal threaded engagement, and the top plate 6 above can be rotated to open the semicircular frame 8 according to the direction of sand delivery, and pull up the folded shielding cover 9 to prevent sand and dust from being raised when dumping. At this time, it is necessary to screw the bolt 10 so that the top of the rod body is embedded in the screw hole 7 for positioning, and then the material box 18 with casters 19 is pushed horizontally into the through slot 20 at the bottom of the main shell 1, so that the top of the material box 18 faces the inside of the main shell 1, and sand is thrown into the main shell 1 from the top plate 6, and the four servo motors 2 are started, all of which are servo motors. The winding roller 4 connected to the output shaft of the machine 2 draws the wound cloth piece 11 from the left and right directions, and cooperates with the movable roller shaft 22 inside the bracket 23 to continuously shake the screen 12 in the cloth piece 11. The mesh holes of the screen 12 at the upper and lower positions change from large to small, which can intercept debris of different particle sizes. The two sets of drive motors 21 at the top rear of the main shell 1 are turned on at regular intervals to rotate the longitudinal screw rod 13. Under the restriction of the balance rod 14, the shaft sleeve 15 outside the screw rod 13 can be vertically lifted and lowered. Under the guidance of the internal thread of the shaft sleeve 15, the two sets of screens 12 are knocked by the rod body 16 that lifts up and down to prevent the mesh holes of the screen 12 from being blocked.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An adjustable river sand multi-stage screening device, comprising a main shell (1) and a cylindrical chamber (3), characterized in that: Two groups of cylindrical chambers (3) are respectively arranged inside the two sides of the main shell (1), and a winding roller (4) is movably connected between the front and rear of the inner side of the cylindrical chamber (3), a cloth piece (11) is movably wound between one side of the rod body of the winding roller (4), and a screen (12) is fixed at the center of the inside of the cloth piece (11), two groups of brackets (23) are respectively arranged between the front and rear of the two sides inside the main shell (1), and a roller shaft (22) is movably connected between the front and rear of the inside of the bracket (23), two groups of servo motors (2) are installed on the left and right sides of the front end of the outside of the main shell (1), a through groove (20) is transversely arranged between the two sides of the bottom of the main shell (1), and balls (17) are movably embedded on both sides of the top of the through groove (20), a material box (18) is transversely inserted in the through groove (20), and casters (19) are installed at the four corners of the bottom of the material box (18).

2. The adjustable river sand multi-stage screening device according to claim 1 is characterized in that: The output shaft of the servo motor (2) is fixedly connected to the front end of the winding roller (4), and both sides of the cloth piece (11) are movably wound on the symmetrical winding roller (4).

3. The adjustable river sand multi-stage screening device according to claim 1 is characterized in that: The roller shaft (22) is horizontally arranged on one side of the winding roller (4), and the cloth piece (11) is overlapped above the shaft body of the roller shaft (22).

4. The adjustable river sand multi-stage screening device according to claim 1 is characterized in that: A top plate (6) is movably connected to the top of the main shell (1), and a circular groove (24) is provided at the center of the top plate (6). Screw holes (7) are provided around the edge of the bottom of the top plate (6). Positioning blocks (5) are fixed to the tops of both sides of the main shell (1), and bolts (10) are meshed and connected to the inner sides of the positioning blocks (5). A semicircular frame (8) is movably connected between the centers of the front and rear ends of the top plate (6), and a shielding cover (9) is fixed between the right side of the semicircular frame (8) and the top plate (6).

5. The adjustable river sand multi-stage screening device according to claim 4, characterized in that: The top of the bolt (10) is embedded in the screw hole (7), and a thread matching the bolt (10) is provided on the inner side of the positioning block (5).

6. The adjustable river sand multi-stage screening device according to claim 4, characterized in that: The top plate (6) can rotate horizontally on the top of the main shell (1), and the circular groove (24) and the main shell (1) are located in the same vertical plane.

7. The adjustable river sand multi-stage screening device according to claim 1 is characterized in that: Two groups of screw rods (13) are longitudinally installed at the rear of the main housing (1), and two groups of shaft sleeves (15) are sleeved on the outside of the screw rods (13). A balance rod (14) is transversely fixed between one side of the shaft sleeve (15), and a rod body (16) is fixed at the front end of the shaft sleeve (15). Two groups of drive motors (21) are installed at the top end of the rear of the main housing (1).

8. The adjustable river sand multi-stage screening device according to claim 7, characterized in that: The output shaft of the driving motor (21) is fixedly connected to the top of the screw rod (13), and the shaft sleeve (15) is symmetrically fixed on both sides of the balance rod (14).

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