Sand and gravel aggregate dropping device

Abstract

The utility model provides a kind of sand aggregate blanking device, including conveying belt conveyor, hopper and chute, hopper is fixedly installed in the discharge port of conveying belt conveyor, and vibration assembly for driving chute vertical jolt is equipped on hopper, chute is located at the discharge port of hopper, multiple rectangular blanking ports are spaced apart in the side wall of chute, multiple rectangular blanking ports are arranged in helical line shape in the side wall of chute, and the rectangular blanking port of helical line arrangement can make material evenly distributed at different height and position and fall down, avoid material concentrated from one or a few positions, so as to realize the uniform dispersion blanking of material, the design of adjacent blanking port spacing gradually decreases from bottom to top, considering the factor that material gradually speeds up in falling process, ensure that there is suitable number of blanking port for material to pass in different falling stage, further improve the uniformity of blanking, avoid the separation and crushing, dust condition of aggregate in the process of stockpiling.

Description

Technical Field

[0001] This utility model relates to the field of sand and gravel conveying equipment, and in particular to a sand and gravel aggregate discharge device. Background Technology

[0002] In the construction of water conservancy and hydropower projects, there is often a sand and gravel processing system. The sand and gravel processing system has strict requirements on the quality of the finished aggregates (mud content, gradation, and oversize).

[0003] The following safety, environmental, and quality issues commonly exist during the process of conveying finished sand and gravel materials from the belt conveyor to the stockpile: 1. Dust: Falling materials from heights generate a large amount of dust, affecting the working environment and harming the health of operators; 2. Splashing: High-speed falling materials may splash, posing a danger to nearby operators and equipment; 3. Sand and gravel are products that have undergone crushing and processing. They have a certain degree of hardness and sharp edges. Excessive free fall can cause secondary crushing of the material during the accumulation process, producing more fine powder and affecting product quality and particle size distribution.

[0004] Therefore, it is necessary to provide a new sand and gravel aggregate feeding device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a sand and gravel aggregate feeding device.

[0006] The aggregate feeding device provided by this utility model includes a conveyor belt, a hopper, and a chute. The hopper is fixedly installed at the discharge port of the conveyor belt. The hopper is provided with a vibrating assembly for driving the chute to move vertically. The chute is located at the discharge port of the hopper. Multiple rectangular feeding ports are spaced apart on the side wall of the chute. The multiple rectangular feeding ports are arranged in a spiral shape on the side wall of the chute.

[0007] Furthermore, the vibrating assembly includes a vibrating motor, a connecting frame, two opposing fixed frames, and two opposing elastic telescopic rods. The two fixed frames are respectively fixedly installed on both sides of the hopper, and the two ends of the connecting frame are respectively slidably installed on the inner sides of the two fixed frames. The chute is fixedly installed on the connecting frame, and the two ends of the two elastic telescopic rods are respectively fixedly connected to the hopper and the connecting frame. The vibrating motor is fixedly installed at the bottom of the connecting frame.

[0008] Furthermore, a guide plate is provided inside the chute near the rectangular discharge port, and one end of the guide plate is inclined downwards towards the middle of the chute.

[0009] Furthermore, the spacing between adjacent rectangular discharge ports decreases sequentially from bottom to top.

[0010] Furthermore, the elastic telescopic rod includes a fixed sleeve, a movable column, and an elastic element. The top of the fixed sleeve is fixedly installed on the bottom of the hopper, one end of the movable column is slidably installed on the bottom of the fixed sleeve, the other end of the movable column is fixedly connected to the top of the connecting frame, and the elastic element is located inside the fixed sleeve.

[0011] Furthermore, the elastic element includes a compression spring, the two ends of which are fixedly connected to the inner wall of the fixed sleeve and one end of the movable column, respectively.

[0012] Compared with related technologies, the sand and gravel aggregate feeding device provided by this utility model has the following beneficial effects: This utility model provides a sand and gravel aggregate feeding device. In specific implementation, the spiral-arranged rectangular feeding ports enable the material to fall evenly at different heights and positions, avoiding the material from falling in one or a few positions. This achieves uniform material distribution. The design of the spacing between adjacent feeding ports decreasing from bottom to top takes into account the factor that the material speed gradually increases during the falling process, ensuring that there are an appropriate number of feeding ports for the material to pass through at different falling stages. This further improves the uniformity of feeding and avoids the separation, breakage, and dust generation of aggregates during the stockpiling process. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of the sand and gravel aggregate feeding device provided by this utility model; Figure 2 Another structural schematic diagram of the sand and gravel aggregate feeding device provided by this utility model; Figure 3 A cross-sectional view of the chute provided by this utility model; Figure 4 for Figure 3 The enlarged structural diagram at point A is shown.

[0014] Labels in the diagram: 1. Conveying belt conveyor; 2. Hopper; 3. Chute; 4. Rectangular discharge port; 5. Vibrating motor; 6. Connecting frame; 7. Fixed frame; 8. Guide plate; 9. Fixed sleeve; 10. Movable column; 11. Elastic element. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please refer to the following: Figure 1 , Figure 2 , Figure 3 as well as Figure 4 ,in, Figure 1 A schematic diagram of the overall structure of the sand and gravel aggregate feeding device provided by this utility model; Figure 2 Another structural schematic diagram of the sand and gravel aggregate feeding device provided by this utility model; Figure 3 A cross-sectional view of the chute provided by this utility model; Figure 4 for Figure 3 The enlarged structural diagram at point A is shown. Example 1

[0017] In the specific implementation process, such as Figures 1-4 As shown, the sand and gravel aggregate feeding device includes a conveyor belt 1, a hopper 2, and a chute 3. The hopper 2 is fixedly installed at the discharge port of the conveyor belt 1. The hopper 2 is equipped with a vibrating assembly for driving the chute 3 to move vertically. The chute 3 is located at the discharge port of the hopper 2. Multiple rectangular discharge ports 4 are spaced apart on the side wall of the chute 3. The multiple rectangular discharge ports 4 are arranged in a spiral shape on the side wall of the chute 3.

[0018] Preferably, taking into account the factor that the material speed gradually increases during the falling process, the spacing between adjacent rectangular material drop ports 4 is designed to decrease from bottom to top, ensuring that there is an appropriate number of material drop ports for material to pass through at different falling stages.

[0019] In some embodiments, the vibrating assembly includes a vibrating motor 5, a connecting frame 6, two opposing fixed frames 7, and two opposing elastic telescopic rods. The two fixed frames 7 are respectively fixedly installed on both sides of the hopper 2. The two ends of the connecting frame 6 are respectively slidably installed on the inner side of the two fixed frames 7. The chute 3 is fixedly installed on the connecting frame 6. The two ends of the two elastic telescopic rods are respectively fixedly connected to the hopper 2 and the connecting frame 6. The vibrating motor 5 is fixedly installed at the bottom of the connecting frame 6.

[0020] In some embodiments, the elastic telescopic rod includes a fixed sleeve 9, a movable column 10, and an elastic element 11. The top of the fixed sleeve 9 is fixedly installed at the bottom of the hopper 2, one end of the movable column 10 is slidably installed at the bottom of the fixed sleeve 9, and the other end of the movable column 10 is fixedly connected to the top of the connecting frame 6. The elastic element 11 is located inside the fixed sleeve 9.

[0021] Preferably, the elastic element 11 includes a compression spring, with both ends of the compression spring fixedly connected to the inner wall of the fixed sleeve 9 and one end of the movable column 10, respectively. When the chute 3 moves downward under the vibration force of the vibrating motor 5, the movable column 10 will compress the compression spring. When the vibration force disappears or reverses, the compression spring will release elastic potential energy, pushing the movable column 10 and the chute 3 upward, thereby realizing the vertical turbulence of the chute 3. The compression spring has good elastic properties and can provide stable elastic force, making the vibration of the chute 3 more stable and regular, which helps the material to fall smoothly from the chute 3 and the discharge port, and prevents the material from blocking in the chute 3.

[0022] It should be noted that the elastic element 11 can also be a spring sheet. The two ends of the spring sheet are fixedly connected to the inner wall of the fixed sleeve 9 and one end of the movable column 10, respectively. The spring sheet also has elasticity and can deform and store and release energy when the chute 3 vibrates. Compared with the compression spring, the spring sheet has a simpler structure and occupies less space, but it may be slightly different in terms of elasticity and service life. In practical applications, the appropriate elastic element 11 can be selected according to specific needs and usage environment. Example 2

[0023] In a specific implementation, a guide plate 8 is installed inside the chute 3 near the rectangular discharge port 4, with one end of the guide plate inclined downwards towards the middle of the chute 3. When material falls inside the chute 3 and approaches the discharge port, the guide plate 8 guides the flow direction of the material, making the material flow more concentrated towards the discharge port. The guide plate 8 can further optimize the material discharge process, reduce disordered flow and collision of material in the chute 3, and make the material fall more smoothly from the discharge port. This not only improves the accuracy of material discharge and reduces material spillage and waste, but also reduces the wear of material on the inner wall of the chute 3 and extends the service life of the device.

[0024] The working principle of this utility model is as follows: When the device is in use, after the material enters the chute 3 from the hopper 2, it begins to fall under its own gravity and the action of the vibrating material assembly. When the material falls in the chute 3 and approaches the discharge port, the guide plate 8 will guide the flow direction of the material, so that the material flows more concentratedly towards the discharge port. Since multiple rectangular discharge ports 4 arranged in a spiral shape are opened on the side wall of the chute 3, and the distance between adjacent rectangular discharge ports 4 decreases from bottom to top, this unique structural design allows the material to pass through each discharge port in sequence according to the spiral trajectory during the falling process. As the falling height of the material decreases, the distance between adjacent discharge ports decreases, and the material has more opportunities to fall from the appropriate discharge port.

[0025] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sand and gravel aggregate feeding device, characterized in that, The device includes a conveyor belt (1), a hopper (2), and a chute (3). The hopper (2) is fixedly installed at the outlet of the conveyor belt (1). The hopper (2) is provided with a vibrating assembly for driving the chute (3) to move vertically. The chute (3) is located at the outlet of the hopper (2). The side wall of the chute (3) is provided with multiple rectangular discharge ports (4) spaced apart. The multiple rectangular discharge ports (4) are arranged in a spiral shape on the side wall of the chute (3).

2. The sand and gravel aggregate feeding device according to claim 1, characterized in that, The vibrating assembly includes a vibrating motor (5), a connecting frame (6), two opposing fixed frames (7) and two opposing elastic telescopic rods. The two fixed frames (7) are respectively fixedly installed on both sides of the hopper (2). The two ends of the connecting frame (6) are respectively slidably installed on the inner side of the two fixed frames (7). The chute (3) is fixedly installed on the connecting frame (6). The two ends of the two elastic telescopic rods are respectively fixedly connected to the hopper (2) and the connecting frame (6). The vibrating motor (5) is fixedly installed at the bottom of the connecting frame (6).

3. The sand and gravel aggregate feeding device according to claim 1, characterized in that, A guide plate (8) is provided inside the chute (3) near the rectangular discharge port (4), and one end of the guide plate is inclined downwards towards the middle of the chute (3).

4. The sand and gravel aggregate feeding device according to claim 1, characterized in that, The spacing between adjacent rectangular discharge ports (4) decreases from bottom to top.

5. The sand and gravel aggregate feeding device according to claim 2, characterized in that, The elastic telescopic rod includes a fixed sleeve (9), a movable column (10), and an elastic element (11). The top of the fixed sleeve (9) is fixedly installed at the bottom of the hopper (2). One end of the movable column (10) is slidably installed at the bottom of the fixed sleeve (9). The other end of the movable column (10) is fixedly connected to the top of the connecting frame (6). The elastic element (11) is located inside the fixed sleeve (9).

6. The sand and gravel aggregate feeding device according to claim 5, characterized in that, The elastic element (11) includes a compression spring, the two ends of which are fixedly connected to the inner wall of the fixed sleeve (9) and one end of the movable column (10), respectively.

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