A building material screening device

Abstract

The utility model belongs to building equipment technical field especially is a kind of building material screening device, including rectangular box, the lower surface four corners of rectangular box are fixedly installed with support leg, and the left and right side walls between rectangular box are provided with screening mechanism, and the left side of the corresponding rectangular box of screening mechanism is fixedly installed with feeding cylinder, and the upper surface of feeding cylinder is fixedly installed with feeding hopper, and the left side wall on feeding cylinder is fixedly installed with feeding mechanism, and feeding mechanism is movably inserted in screening mechanism, and the upper side of the corresponding rectangular box of screening mechanism is installed with cleaning mechanism, and the lower surface of the corresponding rectangular box of screening mechanism is installed with discharge mechanism;The utility model is through the cooperation of feeding mechanism and screening mechanism, can continuously sandstone is screened, improves screening efficiency, and under the condition of not stopping, can clean screening mechanism, effectively avoid screening mechanism block, ensure the normal progress of screening, greatly improve the efficiency of screening, conducive to use.

Description

Technical Field

[0001] This utility model relates to the field of building equipment technology, specifically to a building material screening device. Background Technology

[0002] Building materials are a general term for materials used in civil engineering and construction projects. The scope of building materials is very broad, including commonly used materials such as concrete, mortar, and cement bricks. The basic production materials mainly include three raw materials: cement, sand, and stone. In order to ensure the quality of the project, the sand and stone in the building materials need to be screened and filtered during the construction process.

[0003] Currently, most conventional building material screening devices are vibrating screens. During use, screening is not continuous, resulting in low screening efficiency. Furthermore, impurities accumulate on the vibrating screen during use, easily causing clogging. This necessitates stopping the machine to clean or replace the screen, significantly reducing screening efficiency and making it unsuitable for use. Therefore, we propose a building material screening device to solve the above problems. Summary of the Invention

[0004] Technical problems to be solved In view of the shortcomings of the prior art, this utility model provides a building material screening device, which solves the problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A building material screening device includes a rectangular box. Support legs are fixedly installed at the four corners of the lower surface of the rectangular box in a rectangular shape. A screening mechanism is arranged between the left and right side walls of the rectangular box. A feed cylinder is fixedly installed on the left side of the rectangular box corresponding to the screening mechanism. The right side of the feed cylinder is open. A feeding hopper is fixedly installed on the upper surface of the feed cylinder. A feeding mechanism is fixedly installed on the left side wall of the feed cylinder and is movably inserted into the screening mechanism. A cleaning mechanism is installed on the upper side of the rectangular box corresponding to the screening mechanism, and a discharge mechanism is installed on the lower surface of the rectangular box corresponding to the screening mechanism.

[0006] Furthermore, the screening mechanism includes a metal screening screen sleeve and a first bearing assembly. The metal screening screen sleeve is installed between the left and right side walls of the rectangular box via the left and right first bearing assemblies. Both the left and right sides of the metal screening screen sleeve are open structures, and the right end of the metal screening screen sleeve extends out of the outside of the right side wall of the rectangular box.

[0007] Furthermore, the inner diameter of the metal screening mesh sleeve is the same as the inner diameter of the feed cylinder, and the metal screening mesh sleeve is flush with the left and right sides of the feed cylinder.

[0008] Furthermore, the feeding mechanism includes a first motor, a spiral feeding rod, and a second bearing assembly. The first motor is fixedly installed on the left side of the feed cylinder, and the spiral feeding rod is fixedly installed on the right side of the output shaft of the first motor. The spiral feeding rod is inserted into the metal screening mesh sleeve, and the spiral feeding rod is connected to the left side wall of the feed cylinder through the second bearing assembly.

[0009] Furthermore, the cleaning mechanism includes a second motor, a drive gear, a ball screw, a third bearing assembly, a ball nut, a sleeve, steel brush bristles, a transmission gear, and a driven gear. The second motor is fixedly mounted on the upper surface of the rectangular box. The drive gear is fixedly mounted on the right side of the second motor. The ball screw is mounted between the left and right side walls of the rectangular box via the left and right third bearing assemblies. A ball nut is provided on the ball screw. A sleeve is fixedly mounted on the lower surface of the ball nut. Steel brush bristles are fixedly mounted on the inner wall of the sleeve, and the steel brush bristles are in contact with the outer surface of the metal screening screen. A transmission gear is fixedly mounted on the right end of the ball screw. A driven gear is fixedly mounted on the outer surface of the metal screening screen. The drive gear, transmission gear, and driven gear mesh with each other.

[0010] Furthermore, the outer surface of the ball nut is rectangular, and the upper surface of the ball nut is movably fitted against the upper inner wall of the rectangular box.

[0011] Furthermore, the discharge mechanism includes a guide plate and a discharge pipe. The guide plate is fixedly installed on the lower left and right sides of the rectangular box, and the discharge pipe is fixedly installed on the lower side wall of the rectangular box.

[0012] (III) Beneficial Effects Compared with the prior art, the present invention provides a building material screening device, which has the following beneficial effects: This utility model, through the cooperation of the feeding mechanism and the screening mechanism, can continuously screen sand and gravel, effectively separate sand and gravel from impurities, improve screening efficiency, and the cleaning mechanism can clean the screening mechanism without stopping the machine, effectively avoiding clogging of the screening mechanism, ensuring normal screening, greatly improving screening efficiency, and facilitating use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a cross-sectional view of the rectangular box structure of this utility model; Figure 3 This is a cross-sectional view of the screening mechanism of this utility model.

[0014] In the diagram: 1. Rectangular box; 2. Support leg; 3. Screening mechanism; 301. Metal screening mesh sleeve; 302. First bearing assembly; 4. Feed cylinder; 5. Feed hopper; 6. Feeding mechanism; 601. First motor; 602. Spiral feed rod; 603. Second bearing assembly; 7. Cleaning mechanism; 701. Second motor; 702. Drive gear; 703. Ball screw; 704. Third bearing assembly; 705. Ball nut; 706. Circular sleeve; 707. Steel brush bristles; 708. Transmission gear; 709. Driven gear; 8. Discharge mechanism; 801. Guide plate; 802. Discharge pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example like Figures 1-3 As shown in the figure, an embodiment of the present invention provides a building material screening device, including a rectangular box 1. The four corners of the lower surface of the rectangular box 1 are fixedly mounted with rectangular support legs 2. A screening mechanism 3 is arranged between the left and right side walls of the rectangular box 1. A feeding cylinder 4 is fixedly installed on the left side of the rectangular box 1 corresponding to the screening mechanism 3. The right side of the feeding cylinder 4 is an open structure. A feeding hopper 5 is fixedly installed on the upper surface of the feeding cylinder 4. A feeding mechanism 6 is fixedly installed on the left side wall of the feeding cylinder 4 and is movably inserted into the screening mechanism 3. A cleaning mechanism 7 is installed on the upper side of the rectangular box 1 corresponding to the screening mechanism 3. A discharge mechanism 8 is installed on the lower surface of the rectangular box 1 corresponding to the screening mechanism 3.

[0017] like Figure 2 and Figure 3 As shown, in some embodiments, the screening mechanism 3 includes a metal screening mesh sleeve 301 and a first bearing assembly 302. The metal screening mesh sleeve 301 is installed between the left and right side walls of the rectangular box 1 through the left and right first bearing assemblies 302. Both the left and right sides of the metal screening mesh sleeve 301 are open structures, and the right end of the metal screening mesh sleeve 301 extends out of the outside of the right side wall of the rectangular box 1.

[0018] In this embodiment, the metal screening mesh sleeve 301 can screen and filter larger impurities in sand and gravel, and the first bearing assembly 302 enables the metal screening mesh sleeve 301 to rotate.

[0019] like Figure 3As shown, in some embodiments, the inner diameter of the metal screening mesh sleeve 301 is the same as the inner diameter of the feed cylinder 4, and the metal screening mesh sleeve 301 is flush with the left and right sides of the feed cylinder 4.

[0020] In this embodiment, the sand and gravel raw material in the feed cylinder 4 can smoothly enter the metal screening screen sleeve 301.

[0021] like Figure 3 As shown, in some embodiments, the feeding mechanism 6 includes a first motor 601, a spiral feeding rod 602, and a second bearing assembly 603. The first motor 601 is fixedly installed on the left side of the feed cylinder 4, and the spiral feeding rod 602 is fixedly installed on the right side of the output shaft of the first motor 601. The spiral feeding rod 602 is inserted into the metal screening mesh sleeve 301, and the spiral feeding rod 602 is connected to the left side wall of the feed cylinder 4 through the second bearing assembly 603.

[0022] In this embodiment, the output shaft of the first motor 601 drives the spiral feed rod 602 to rotate in the second bearing assembly 603, so that the spiral feed rod 602 pushes the sand and gravel raw material in the feed cylinder 4 into the metal screening screen sleeve 301, and then pushes out the larger impurities filtered out by the metal screening screen sleeve 301 to the right side of the metal screening screen sleeve 301.

[0023] like Figure 2 As shown, in some embodiments, the cleaning mechanism 7 includes a second motor 701, a drive gear 702, a ball screw 703, a third bearing assembly 704, a ball nut 705, a sleeve 706, steel brush bristles 707, a transmission gear 708, and a driven gear 709. The second motor 701 is fixedly mounted on the upper surface of the rectangular box 1, and the drive gear 702 is fixedly mounted on the right side of the second motor 701. The ball screw 703 is mounted between the left and right side walls of the rectangular box 1 via the left and right third bearing assemblies 704. The ball screw 703 is provided with a ball nut 705. A sleeve 706 is fixedly installed on the lower surface of the ball nut 705. A steel brush bristle 707 is fixedly installed on the inner wall of the sleeve 706 and the steel brush bristle 707 is in contact with the outer surface of the metal screening screen sleeve 301. A transmission gear 708 is fixedly installed on the right end of the ball screw 703. A driven gear 709 is fixedly installed on the outer surface of the metal screening screen sleeve 301. The driving gear 702, the transmission gear 708 and the driven gear 709 mesh with each other.

[0024] In this embodiment, the output shaft of the second motor 701 drives the drive gear 702 to rotate, the drive gear 702 drives the transmission gear 708 to rotate, and the transmission gear 708 drives the ball screw 703 to rotate in the left and right third bearing assemblies 704, causing the ball screw 703 to drive the ball nut 705 to move left and right. The ball nut 705 drives the steel brush 707 to move left and right through the sleeve 706. The steel brush 707 cleans the blockages on the outer surface and in the mesh of the metal screening screen sleeve 301. In addition, the transmission gear 708 drives the metal screening screen sleeve 301 to rotate in the first bearing assembly 302 through the driven gear 709. The metal screening screen sleeve 301 drives the internal sand and gravel to tumble, thereby enabling comprehensive screening.

[0025] like Figure 2 As shown, in some embodiments, the outer surface of the ball nut 705 is a rectangular structure, and the upper surface of the ball nut 705 is movably fitted with the upper inner wall of the rectangular box 1.

[0026] In this embodiment, the upper surface of the ball nut 705 moves left and right along the upper and lower inner walls of the rectangular box 1, so that the ball nut 705 stably drives the sleeve 706 to move left and right.

[0027] like Figure 2 As shown, in some embodiments, the discharge mechanism 8 includes a guide plate 801 and a discharge pipe 802. The guide plate 801 is fixedly installed on the lower left and right sides of the rectangular box 1, and the discharge pipe 802 is fixedly installed on the lower side wall of the rectangular box 1.

[0028] In this embodiment, the sand and gravel flowing out of the metal screening mesh sleeve 301 flows to the discharge pipe 802 through the guide plate 801, and then flows out of the rectangular box 1 through the discharge pipe 802.

[0029] In use, sand and gravel are poured into the feeding hopper 5, flowing into the feeding cylinder 4. The output shaft of the first motor 601 in the feeding mechanism 6 drives the screw feeder 602 to rotate in the second bearing assembly 603, causing the screw feeder 602 to push the sand and gravel material in the feeding cylinder 4 into the metal screening screen 301 in the screening mechanism 3. The metal screening screen 301 filters large particles of impurities. The screw feeder 602 pushes the larger impurities filtered out by the metal screening screen 301 out to the right side of the metal screening screen 301. The filtered sand and gravel flow through the guide plate 801 in the discharge mechanism 8 to the discharge pipe 802, and then out of the rectangular box 1 through the discharge pipe 802. During the screening process, the output shaft of the second motor 701 in the cleaning mechanism 7 drives the drive gear 702 to rotate, which in turn drives the transmission gear 708 to rotate. The transmission gear 708 then... The moving ball screw 703 rotates within the left and right third bearing assemblies 704, causing the ball screw 703 to drive the ball nut 705 to move left and right. The ball nut 705, through the sleeve 706, drives the steel brush 707 to move left and right. The steel brush 707 cleans the blockages on the outer surface and in the mesh of the metal screening screen sleeve 301. Meanwhile, the transmission gear 708, through the driven gear 709, drives the metal screening screen sleeve 301 to rotate within the first bearing assembly 302. The metal screening screen sleeve 301 causes the internal sand and gravel to tumble, thus enabling comprehensive screening and achieving continuous screening of sand and gravel. This effectively separates sand and gravel from impurities, improves screening efficiency, and allows for cleaning of the metal screening screen sleeve 301 without stopping the machine, effectively preventing blockage and ensuring normal screening operation. This greatly improves screening efficiency and facilitates use.

[0030] In summary, this building material screening device, through the cooperation of the feeding mechanism 6 and the screening mechanism 3, can continuously screen sand and gravel, improve screening efficiency, and can clean the screening mechanism 3 without stopping the machine, effectively avoiding blockage of the screening mechanism 3, ensuring normal screening, greatly improving screening efficiency, and facilitating use.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A building material screening device, comprising a rectangular box (1), characterized in that: The rectangular box (1) has four rectangular support legs (2) fixedly installed at the four corners of its lower surface. A screening mechanism (3) is provided between the left and right side walls of the rectangular box (1). A feeding cylinder (4) is fixedly installed on the left side of the rectangular box (1) corresponding to the screening mechanism (3). The right side of the feeding cylinder (4) is an open structure. A feeding hopper (5) is fixedly installed on the upper surface of the feeding cylinder (4). A feeding mechanism (6) is fixedly installed on the left side wall of the feeding cylinder (4) and is movably inserted into the screening mechanism (3). A cleaning mechanism (7) is installed on the upper side of the rectangular box (1) corresponding to the screening mechanism (3). A discharge mechanism (8) is installed on the lower surface of the rectangular box (1) corresponding to the screening mechanism (3).

2. The building material screening device according to claim 1, characterized in that: The screening mechanism (3) includes a metal screening mesh sleeve (301) and a first bearing assembly (302). The metal screening mesh sleeve (301) is installed between the left and right side walls of the rectangular box (1) through the left and right first bearing assemblies (302). The left and right sides of the metal screening mesh sleeve (301) are open structures, and the right end of the metal screening mesh sleeve (301) extends out of the outside of the right side wall of the rectangular box (1).

3. The building material screening device according to claim 2, characterized in that: The inner diameter of the metal screening mesh sleeve (301) is the same as the inner diameter of the feed cylinder (4), and the metal screening mesh sleeve (301) is flush with the feed cylinder (4) on the left and right.

4. The building material screening device according to claim 1, characterized in that: The feeding mechanism (6) includes a first motor (601), a spiral feeding rod (602), and a second bearing assembly (603). The first motor (601) is fixedly installed on the left side of the feed cylinder (4). The spiral feeding rod (602) is fixedly installed on the right side of the output shaft of the first motor (601), and the spiral feeding rod (602) is inserted into the metal screening mesh sleeve (301). The spiral feeding rod (602) is connected to the left side wall of the feed cylinder (4) through the second bearing assembly (603).

5. A building material screening device according to claim 1, characterized in that: The cleaning mechanism (7) includes a second motor (701), a drive gear (702), a ball screw (703), a third bearing assembly (704), a ball nut (705), a sleeve (706), steel brush bristles (707), a transmission gear (708), and a driven gear (709). The second motor (701) is fixedly installed on the upper surface of the rectangular box (1). The drive gear (702) is fixedly installed on the right side of the second motor (701). The ball screw (703) is installed between the left and right side walls of the rectangular box (1) through the left and right third bearing assemblies (704). A ball screw (703) is provided with a ball nut (705), a round sleeve (706) is fixedly installed on the lower surface of the ball nut (705), a steel brush (707) is fixedly installed on the inner wall of the round sleeve (706), and the steel brush (707) is in contact with the outer surface of the metal screening screen sleeve (301). A transmission gear (708) is fixedly installed on the right end of the ball screw (703), and a driven gear (709) is fixedly installed on the outer surface of the metal screening screen sleeve (301). The driving gear (702), the transmission gear (708) and the driven gear (709) mesh with each other.

6. A building material screening device according to claim 5, characterized in that: The outer surface of the ball nut (705) is rectangular, and the upper surface of the ball nut (705) is in contact with the upper inner wall of the rectangular box (1).

7. A building material screening device according to claim 1, characterized in that: The discharge mechanism (8) includes a guide plate (801) and a discharge pipe (802). The guide plate (801) is fixedly installed on the lower left and right sides of the rectangular box (1), and the discharge pipe (802) is fixedly installed on the lower side wall of the rectangular box (1).

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