Concrete gravel screening equipment
By using motor drive gears and tooth rings to rotate the screen barrel in the sand and gravel screening equipment, and installing wire bristles on the brush plate to clean the blocked sand and gravel, the problem of equipment blockage is solved, screening efficiency is improved and labor intensity of staff are reduced .
Patent Information
- Application Number
- CN202420068359.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-11
AI Technical Summary
Existing sand and gravel screening equipment is prone to clogging after long working hours, which reduces work efficiency and increases the strength of manual cleaning, which may cause damage to the screen barrel.
A concrete sand and gravel screening equipment is designed to drive the gears and gear rings to rotate the screen cylinder through the motor, and wire bristles are installed on the brush plate. The main spring is used to maintain the pressure of the bristles on the screen cylinder, and the blocked sand and gravel are cleaned while providing fast The installation and removal of the limit mechanism of the brush plate reduces the working intensity of the staff.
It effectively avoids sand and gravel blockage, improves the working efficiency of sand and gravel screening, reduces the work intensity of staff, and extends the service life of the screen barrel.
Smart Images
Figure CN222152777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sand and gravel screening, in particular to concrete sand and gravel screening equipment. Background Art
[0002] The term concrete usually refers to cement as the binder, sand and stone as aggregates, mixed with water (which may contain admixtures and additives) in a certain proportion and stirred. Cement concrete, also known as ordinary concrete, is widely used in civil engineering, and the sand and stone used in concrete need to be screened.
[0003] However, most of the sand and gravel screening equipment on the market currently has a single function. When working for a long time, the sand and gravel may block the screen drum, which will reduce the working efficiency of the screen drum. Long-term blockage may cause damage to the screen drum, which requires manual cleaning to return to normal, and increases the workload of the staff. Utility Model Content
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions: a concrete sand and gravel screening device, comprising:
[0005] A protection box, wherein a feed port is provided on one side of the protection box, a circular discharge port is provided on the other side of the protection box, a rectangular discharge port is provided at the bottom of the protection box body, a screen drum is provided inside the protection box, a rotating mechanism for driving the screen drum to rotate is provided inside the protection box body, a motor box is fixed on the outside of the protection box body above the feed port, and a motor for providing power to the rotating mechanism is installed in the motor box;
[0006] Two fixed blocks are respectively fixed on both sides of the protective box body, and sliding blocks are provided on the facing surfaces of the two fixed blocks. A sliding part that allows the sliding block to slide inside the fixed block is provided between the sliding block and the fixed block. A brush plate is provided on one side of the sliding block relative to the fixed block, and a limiting mechanism for limiting the brush plate is provided between the brush plate and the sliding block.
[0007] Preferably, the rotating mechanism includes a gear ring provided inside the protection box at the feed port position, one side of the gear ring is rotatably connected to the inner side of the protection box via a bearing ring, the other side of the gear ring is fixedly connected to one end of the screen drum, a circular ring is fixed to the other end of the screen drum, the circular ring is rotatably connected to the circular discharge port position inside the protection box via a bearing ring, the output end of the motor passes through the side wall of the protection box and is fixed with a gear, and the gear can rotate in meshing with the gear ring.
[0008] Preferably, the sliding portion comprises a sliding groove opened on one side of the fixed block, the sliding block can slide in the sliding groove, and a main spring is fixed between the sliding block and the sliding groove.
[0009] Preferably, the limiting mechanism includes a limiting groove provided on a side of the sliding block opposite to the fixed block, an insert block is fixed to the side of the brush plate facing the sliding block, the insert block can be inserted into the limiting groove, a cylindrical groove is provided inside the insert block, both ends of the cylindrical groove are slidably connected with an insert rod through a slide rail, a secondary spring is provided between the two insert rods, slots are provided on both sides of the sliding block, pressing columns are slidably connected in the two slots through a slide rail, and the slots are communicated with the cylindrical groove.
[0010] Preferably, the length of the push column is the same as the depth of the slot.
[0011] Preferably, a feed hopper is fixed at the feed inlet.
[0012] Preferably, steel wire bristles are fixed on the side of the brush plate facing the screen cylinder.
[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0014] 1. The motor drives the gear to rotate, the gear drives the gear ring to rotate, and then drives the screen drum to rotate to achieve yarn-like screening. The screen drum keeps rotating. Under the action of the main spring, the wire bristles on the brush plate always exert a certain pressure on the screen drum, which can clean up the sand and gravel blocked in the gap of the screen drum, avoiding the blockage of the screen drum by sand and gravel, thereby improving the efficiency of sand and gravel screening.
[0015] 2. Insert the block into the limit slot by pressing the rods on both sides of the plug block. When the rod moves to the slot position, the secondary spring will push the rod out and insert it into the slot. The rod will push part of the pressing column out of the slot to fix the brush plate. Press the pressing column, and the pressing column will push the rod out of the slot. At this time, the block can be taken out of the limit slot, thereby realizing the rapid installation and removal of the brush plate and reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a cross-sectional view of the internal structure of the utility model;
[0019] Figure 3 It is a schematic diagram of the internal structure of the utility model;
[0020] Figure 4 It is a partial structural sectional view of the utility model;
[0021] Figure 5 This is a cross-sectional view of the internal structure of the plug block of the utility model.
[0022] Description of reference numerals:
[0023] 1. Protection box; 2. Motor box; 3. Feed hopper; 4. Screen drum; 5. Gear ring; 6. Circular ring; 7. Feed port; 8. Circular discharge port; 9. Gear; 10. Fixed block; 11. Sliding block; 12. Brush plate; 13. Push column; 14. Rectangular discharge port; 15. Secondary spring; 16. Insert rod; 17. Sliding groove; 18. Main spring; 19. Insert block; 20. Cylindrical groove; 21. Limit groove. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0025] Embodiment 1
[0026] Reference Figure 1 and Figure 2 As shown, a concrete sand and gravel screening device comprises:
[0027] A protection box 1 is provided with a feed port 7 on one side of the protection box 1, a circular discharge port 8 on the other side of the protection box 1, a rectangular discharge port 14 on the bottom of the protection box 1, a screen drum 4 is provided inside the protection box 1, a rotating mechanism for driving the screen drum 4 to rotate is provided inside the protection box 1, a motor box 2 is fixed on the outside of the protection box 1 above the feed port 7, and a motor for providing power to the rotating mechanism is installed in the motor box 2;
[0028] Two fixed blocks 10 are respectively fixed on both sides of the protection box 1 body, and sliding blocks 11 are provided on the facing surfaces of the two fixed blocks 10. A sliding part is provided between the sliding block 11 and the fixed block 10 to allow the sliding block 11 to slide inside the fixed block 10.
[0029] Furthermore, the rotating mechanism includes a gear ring 5 provided at the feed port 7 inside the protection box 1, one side of the gear ring 5 is rotatably connected to the inner side of the protection box 1 through a bearing ring, the other side of the gear ring 5 is fixedly connected to one end of the screen drum 4, a circular ring 6 is fixed to the other end of the screen drum 4, the circular ring 6 is rotatably connected to the circular discharge port 8 inside the protection box 1 through a bearing ring, the output end of the motor passes through the side wall of the protection box 1 and is fixed with a gear 9, the gear 9 can mesh and rotate with the gear ring 5, the motor drives the gear 9 to rotate, the gear 9 drives the gear ring 5 to rotate, and then drives the screen drum 4 to rotate.
[0030] Furthermore, the sliding part includes a sliding groove 17 opened on one side of the fixed block 10, and the sliding block 11 can slide in the sliding groove 17. A main spring 18 is fixed between the sliding block 11 and the sliding groove 17. Under the action of the main spring 18, the wire bristles on the brush plate 12 always exert a certain pressure on the screen cylinder 4, which is convenient for cleaning out the sand and gravel blocked in the gap of the screen cylinder 4.
[0031] Furthermore, a feed hopper 3 is fixed at the feed port 7 to facilitate feeding.
[0032] Furthermore, a wire brush is fixed on the side of the brush plate 12 facing the screen cylinder 4 to facilitate cleaning of sand and gravel clogging the screen cylinder 4.
[0033] Through the above technical solution:
[0034] When in use, turn on the motor, the motor drives the gear 9 to rotate, the gear 9 drives the gear ring 5 to rotate, and then drives the screen drum 4 to rotate, and pours sand and gravel into the equipment from the feed port 7. The sand and gravel are screened as the screen drum 4 rotates. The oversized sand and gravel slide out from the circular discharge port 8 due to gravity, and the sand and gravel passing through the screen drum 4 will fall to the ground from the rectangular discharge port 14. Since the screen drum 4 is always rotating, under the action of the main spring 18, the wire bristles on the brush plate 12 always have a certain pressure on the screen drum 4, which can clean up the sand and gravel blocked in the gap of the screen drum 4, avoiding the sand and gravel blocking the screen drum 4, thereby improving the efficiency of sand and gravel screening.
[0035] Embodiment 2
[0036] Reference Figure 3-Figure 5 As shown, a concrete sand and gravel screening device comprises:
[0037] A brush plate 12 is provided on one side of the sliding block 11 relative to the fixed block 10 , and a limiting mechanism for limiting the brush plate 12 is provided between the brush plate 12 and the sliding block 11 .
[0038] Furthermore, the limiting mechanism includes a limiting groove 21 provided on one side of the sliding block 11 relative to the fixed block 10, and an insert block 19 is fixed on the side of the brush plate 12 facing the sliding block 11. The insert block 19 can be inserted into the limiting groove 21, and a cylindrical groove 20 is provided inside the insert block 19. Both ends of the cylindrical groove 20 are slidably connected with an insert rod 16 through a slide rail, and a secondary spring 15 is provided between the two insert rods 16. Slots are provided on both sides of the sliding block 11, and the two slots are slidably connected with a pressing column 13 through a slide rail. The slots are communicated with the cylindrical groove 20. When the insert rods 16 on both sides of the insert block 19 are pressed, the insert rod 16 will squeeze the secondary spring 15, and the insert block 19 will be inserted into the limiting groove 21. When the insert rod 16 moves to the slot position, the secondary spring 15 will push the insert rod 16 out and insert it into the slot, and the insert rod 16 will push a part of the pressing column 13 out of the slot.
[0039] Furthermore, the length of the push post 13 is the same as the depth of the slot, so that the push post 13 is prevented from entering the cylindrical groove 20 when pressed if it is too long, and the push post 13 is prevented from pushing the insertion rod 16 out of the slot if it is too short.
[0040] Through the above technical solution:
[0041] During use, when the brush plate 12 needs to be installed, the insertion rods 16 on both sides of the insertion block 19 are pressed, and the insertion rods 16 will squeeze the secondary springs 15. When the insertion rods 16 are completely inserted into the cylindrical grooves 20, the insertion block 19 is inserted into the limiting grooves 21. When the insertion rod 16 moves to the slot position, due to the action of the secondary springs 15, the insertion rod 16 will be pushed out and inserted into the slot. The insertion rod 16 will push a part of the pressing column 13 out of the slot to complete the fixation of the brush plate 12. When the brush plate 12 needs to be replaced, the pressing column 13 is pressed, and the pressing column 13 will push the insertion rod 16 out of the slot. At this time, the insertion block 19 can be taken out of the limiting groove 21, thereby realizing the quick installation and removal function of the brush plate 12 and reducing the work intensity of the staff.
[0042] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A concrete sand and gravel screening device, characterized in that: include: A protection box (1), wherein a feed port (7) is provided on one side of the protection box (1), a circular discharge port (8) is provided on the other side of the protection box (1), a rectangular discharge port (14) is provided at the bottom of the protection box (1), a screen drum (4) is provided inside the protection box (1), a rotating mechanism for driving the screen drum (4) to rotate is provided inside the protection box (1), a motor box (2) is fixed on the outside of the protection box (1) above the feed port (7), and a motor for providing power to the rotating mechanism is installed in the motor box (2); Two fixed blocks (10) are respectively fixed on two sides of the interior of the protection box (1); sliding blocks (11) are provided on the facing surfaces of the two fixed blocks (10); a sliding portion is provided between the sliding block (11) and the fixed block (10) to allow the sliding block (11) to slide inside the fixed block (10); a brush plate (12) is provided on one side of the sliding block (11) relative to the fixed block (10); and a limiting mechanism for limiting the brush plate (12) is provided between the brush plate (12) and the sliding block (11).
2. A concrete sand and gravel screening device according to claim 1, characterized in that: The rotating mechanism comprises a gear ring (5) provided inside the protection box (1) at the position of the feed port (7); one side of the gear ring (5) is rotatably connected to the inside of the protection box (1) via a bearing ring; the other side of the gear ring (5) is fixedly connected to one end of a screen drum (4); a circular ring (6) is fixedly provided at the other end of the screen drum (4); the circular ring (6) is rotatably connected to the position of a circular discharge port (8) inside the protection box (1) via a bearing ring; the output end of the motor passes through the side wall of the protection box (1) and is fixedly provided with a gear (9); the gear (9) can be meshed and rotatably connected to the gear ring (5).
3. A concrete sand and gravel screening device according to claim 1, characterized in that: The sliding portion comprises a sliding groove (17) opened on one side of the fixed block (10), the sliding block (11) can slide in the sliding groove (17), and a main spring (18) is fixed between the sliding block (11) and the sliding groove (17).
4. The concrete sand and gravel screening equipment according to claim 1, characterized in that: The limiting mechanism comprises a limiting groove (21) provided on one side of the sliding block (11) relative to the fixed block (10); an insert block (19) is fixed on the side of the brush plate (12) facing the sliding block (11); the insert block (19) can be inserted into the limiting groove (21); a cylindrical groove (20) is provided inside the insert block (19); both ends of the cylindrical groove (20) are slidably connected to an insert rod (16) via a slide rail; a secondary spring (15) is provided between the two insert rods (16); slots are provided on both sides of the sliding block (11); a pressing column (13) is slidably connected to the two slots via a slide rail; and the slots are communicated with the cylindrical groove (20).
5. A concrete sand and gravel screening device according to claim 4, characterized in that: The length of the push column (13) is the same as the depth of the slot.
6. The concrete sand and gravel screening equipment according to claim 1, characterized in that: A feed hopper (3) is fixed at the feed opening (7).
7. The concrete sand and gravel screening equipment according to claim 1, characterized in that: Steel wire bristles are fixed on the side of the brush plate (12) facing the screen cylinder (4).