Efficient raw material screening equipment for municipal bridge construction

Abstract

The utility model relates to the field of raw material screening equipment, in particular to efficient raw material screening equipment for municipal bridge construction, which comprises a screening box and a conveying belt, a dustproof cover plate is arranged at the upper end of the screening box, a feeding port is arranged on the left side of the surface of the dustproof cover plate, and a screening plate is arranged on the inner side of the screening box. An adjusting screen is arranged on the inner side of the screening box and located below the screening plate, the adjusting screen is movably connected with the left end of the screening box through a pushing air cylinder, a mounting support is arranged on the outer side of the screening box, and a vibration motor is arranged on the side of the bottom of the screening box. Raw materials are driven by the conveying belt to be conveyed, the raw materials can be conveyed upwards from the bottom conveniently, lifting is achieved, the raw materials can be fed into the screening box from the feeding port and fall on the screening plate, screening is achieved, the adjusting screen is pushed by the pushing air cylinder to move, screening holes of the screening plate and the adjusting screen are staggered, and screening efficiency is improved. The size of the screen holes is changed, and flexibility is improved.

Description

Technical Field

[0001] This utility model relates to the field of raw material screening equipment, and in particular to a high-efficiency screening equipment for raw materials used in the construction of municipal bridges. Background Technology

[0002] Bridges are generally composed of a superstructure, a substructure, and ancillary structures. The raw materials used in the construction of municipal bridges are mostly concrete and steel, and the surface is paved with asphalt. A lot of sand and gravel are needed to mix the concrete. The concrete for bridges has high requirements for the size of the sand and gravel particles, so the sand and gravel are screened by screening devices.

[0003] However, existing high-efficiency screening equipment for raw materials used in municipal bridge construction achieves screening by moving sand and gravel on a screen. The size of the screen holes directly affects the screening effect. However, the screen holes are mostly of a fixed size and cannot be adjusted according to needs, resulting in poor flexibility. At the same time, it is inconvenient to feed materials, which makes feeding and lifting time-consuming and labor-intensive, affecting work efficiency.

[0004] Therefore, in view of the problem that the existing high-efficiency screening equipment for raw materials used in municipal bridge construction cannot adjust the size of the screen holes according to the needs and has poor flexibility, a high-efficiency screening equipment for raw materials used in municipal bridge construction can be designed that can adjust the size of the screen holes, thereby improving flexibility. Utility Model Content

[0005] To overcome the problem that existing high-efficiency screening equipment for raw materials used in municipal bridge construction cannot adjust the size of the sieve holes according to needs and has poor flexibility.

[0006] The technical solution of this utility model is as follows: a high-efficiency screening device for raw materials used in municipal bridge construction, including a screening box and a conveyor belt. A dustproof cover is provided at the upper end of the screening box, and a feed inlet is provided on the left side of the surface of the dustproof cover. A screening plate is provided on the inner side of the screening box, and an adjustable screen is provided on the inner side of the screening box below the screening plate. The adjustable screen and the left end of the screening box are movably connected by a push cylinder. A mounting bracket is provided on the outer side of the screening box, and an elastic connecting component is provided between the top of the mounting bracket and both sides of the surface of the screening box. A vibration motor is provided on the side of the bottom of the screening box. A connecting frame is fixedly installed on the left end of the mounting bracket. The connecting frame is fixedly connected to the lower end of the conveyor belt, and the end of the conveyor belt away from the connecting frame is adapted to the feed inlet.

[0007] Preferably, the raw materials are moved by the conveyor belt, which facilitates the lifting and conveying of the raw materials and sends them from the feed inlet into the screening box for easy loading. At the same time, by utilizing the matching of the screening plate and the adjusting screen, when the push cylinder pushes the adjusting screen to move, the screen holes of the screening plate and the adjusting screen are misaligned, which changes the screening effect and improves practicality.

[0008] Preferably, a baffle is provided on the upper side of the feed inlet. The baffle has an L-shaped structure and is adapted to the upper end of the conveyor belt.

[0009] Preferably, both the screening plate and the adjusting screen have screen holes on their surfaces, and guide rails are fixedly installed on both sides of the inner wall of the screening box. The two guide rails are slidably connected to both ends of the screening plate.

[0010] Preferably, there are two push cylinders. The fixed end of the push cylinder is fixedly connected to the screening box, and the output end of the push cylinder is rotatably connected to the left end of the adjusting screen.

[0011] Preferably, the elastic connection assembly includes four connecting seats, and a connecting rod is fixedly installed on the top of the mounting bracket. The upper end of the connecting rod is slidably connected to the connecting seat, and a spring is sleeved on the outer side of the connecting rod.

[0012] Preferably, the surface of the connecting seat and the screening box are fixedly connected, and the upper and lower ends of the spring are fixedly connected to the connecting seat and the mounting bracket, respectively.

[0013] Preferably, a support plate is fixedly installed on the surface of the connecting frame, the upper end of the support plate is fixedly connected to the side plate of the conveyor belt, and the surface of the conveyor belt is provided with baffles.

[0014] The beneficial effects of this utility model are:

[0015] This high-efficiency raw material screening equipment for municipal bridge construction uses a conveyor belt to transport raw materials, facilitating upward transport from the bottom. The equipment feeds raw materials from the inlet into the screening box, where they fall onto the screening plate for screening. A push cylinder moves the adjustable screen, causing the screen plate and the screen holes to be misaligned, changing the size of the screen holes and improving flexibility. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the high-efficiency screening equipment for raw materials used in municipal bridge construction according to this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the screening box structure of the high-efficiency screening equipment for raw materials used in municipal bridge construction according to this utility model.

[0018] Figure 3 The diagram shown is a cross-sectional view of the high-efficiency screening equipment for raw materials used in municipal bridge construction according to this utility model.

[0019] Figure 4 What is shown is Figure 2 Enlarged structural diagram of point A in the middle;

[0020] Figure 5The diagram shown is a schematic representation of the connecting frame structure of the high-efficiency screening equipment for raw materials used in municipal bridge construction according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Screening box; 2. Conveyor belt; 3. Dustproof cover; 4. Feed inlet; 41. Baffle plate; 5. Screening plate; 6. Adjustable screen; 7. Push cylinder; 8. Mounting bracket; 81. Connecting seat; 82. Connecting rod; 83. Spring; 9. Vibration motor; 10. Connecting frame; 101. Support plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a high-efficiency screening device for raw materials used in municipal bridge construction, including a screening box 1 and a conveyor belt 2. A dust cover 3 is provided at the upper end of the screening box 1, and a feed inlet 4 is provided on the left side of the dust cover 3. A baffle 41 is provided on the upper side of the feed inlet 4. The baffle 41 has an L-shaped structure and is adapted to the upper end of the conveyor belt 2. A screening plate 5 is provided inside the screening box 1, and an adjustable screen 6 is provided below the screening plate 5 inside the screening box 1. The adjustable screen 6 is movably connected to the left end of the screening box 1 via a push cylinder 7. A mounting bracket 8 is provided on the outer side of the screening box 1. An elastic connecting component is provided between the top of the mounting bracket 8 and both sides of the surface of the screening box 1. A vibration motor 9 is provided on the bottom side of the screening box 1. A connecting frame 10 is fixedly installed on the left end of the mounting bracket 8. The connecting frame 10 is fixedly connected to the lower end of the conveyor belt 2. The end of the conveyor belt 2 away from the connecting frame 10 is adapted to the feed inlet 4. The raw material is moved by the conveyor belt 2, which facilitates the lifting and conveying of the raw material and sends the raw material from the feed inlet 4 into the screening box 1 for easy feeding. At the same time, by utilizing the adaptation of the screening plate 5 and the adjusting screen 6, when the pushing cylinder 7 pushes the adjusting screen 6 to move, the screen holes of the screening plate 5 and the adjusting screen 6 are misaligned, which changes the screening effect and improves practicality.

[0024] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, both the screening plate 5 and the adjusting screen 6 have sieve holes on their surfaces. Guide rails are fixedly installed on both sides of the inner wall of the screening box 1. The two guide rails are slidably connected to both ends of the screening plate 5. Two push cylinders 7 are provided. The fixed end of the push cylinder 7 is fixedly connected to the screening box 1, and the output end of the push cylinder 7 is rotatably connected to the left end of the adjusting screen 6. The sieve holes of the screening plate 5 and the adjusting screen 6 are adapted to form screening sieve holes. Thus, after the push cylinder 7 pushes the adjusting screen 6 to move, the sieve holes of the two screening plates 5 and the adjusting screen 6 are misaligned, and the size of the screening sieve holes is adjusted, which improves flexibility.

[0025] Please see Figure 2 and Figure 4 In this embodiment, the elastic connection assembly includes a connecting seat 81, of which four connecting seats 81 are provided. A connecting rod 82 is fixedly installed on the top of the mounting bracket 8. The upper end of the connecting rod 82 is slidably connected to the connecting seat 81, and a spring 83 is sleeved on the outer side of the connecting rod 82. The connecting seat 81 is fixedly connected to the surface of the screening box 1. The upper and lower ends of the spring 83 are fixedly connected to the connecting seat 81 and the mounting bracket 8, respectively. The elastic connection of the spring 83 increases the vibration effect when the vibration motor 9 drives the screening box 1 to vibrate, and the connection of the spring 83 increases the vibration effect, so that the raw materials shake in the screening box 1, which facilitates screening.

[0026] Please see Figure 1 , Figure 3 and Figure 5 In this embodiment, a support plate 101 is fixedly installed on the surface of the connecting frame 10. The upper end of the support plate 101 is fixedly connected to the side plate of the conveyor belt 2. A baffle is provided on the surface of the conveyor belt 2. The connecting frame 10 and the support plate 101 form a connection and fixation on both sides of the conveyor belt 2, so that the conveyor belt 2 is set in an inclined shape, which facilitates the conveying and lifting of raw materials.

[0027] During operation, raw materials for municipal bridge construction are poured into the bottom of conveyor belt 2. The movement of conveyor belt 2 causes the raw materials to move upward and fall from the top of conveyor belt 2 into screening box 1 through feed inlet 4. The raw materials then fall onto one side of screening plate 5 and slide naturally, allowing them to pass through the screen holes for screening. They can be separated according to the size of the sand and gravel particles. At the same time, the screen holes of screening plate 5 and adjusting screen 6 are matched to form screening screen holes. After the push cylinder 7 pushes the adjusting screen 6 to move, the screen holes of the two screening plates 5 and adjusting screen 6 are misaligned, and the size of the screening screen holes is adjusted, improving flexibility. During screening, vibration motor 9 drives screening box 1 to vibrate, and the connection of spring 83 increases the vibration effect, causing the raw materials to shake in screening box 1 for easy screening.

[0028] Through the above steps, the conveyor belt 2 drives the raw materials to move, facilitating the lifting and conveying of the raw materials, and feeding the raw materials from the feed inlet 4 into the screening box 1 for easy loading. At the same time, by utilizing the adaptation of the screening plate 5 and the adjusting screen 6, when the push cylinder 7 pushes the adjusting screen 6 to move, the screen holes of the screening plate 5 and the adjusting screen 6 are misaligned, changing the screening effect and improving practicality. This solves the problem that existing high-efficiency screening equipment for raw materials used in municipal bridge construction cannot adjust the size of the screen holes according to needs and has poor flexibility.

Claims

1. A high-efficiency screening device for raw materials used in the construction of municipal bridges, comprising a screening box (1), characterized in that: It also includes a conveyor belt (2), a dust cover (3) is provided at the upper end of the screening box (1), a feed inlet (4) is provided on the left side of the surface of the dust cover (3), a screening plate (5) is provided on the inner side of the screening box (1), an adjustable screen (6) is provided on the inner side of the screening box (1) below the screening plate (5), the adjustable screen (6) and the left end of the screening box (1) are connected by a push cylinder (7), an installation bracket (8) is provided on the outer side of the screening box (1), an elastic connecting component is provided between the top of the installation bracket (8) and the two sides of the surface of the screening box (1), a vibration motor (9) is provided on the side of the bottom of the screening box (1), a connecting frame (10) is fixedly installed on the left end of the installation bracket (8), the connecting frame (10) is fixedly connected to the lower end of the conveyor belt (2), and the end of the conveyor belt (2) away from the connecting frame (10) is adapted to the feed inlet (4).

2. The high-efficiency screening equipment for raw materials used in municipal bridge construction according to claim 1, characterized in that: A baffle plate (41) is provided on the upper side of the feed inlet (4). The baffle plate (41) is designed in an L-shape and is adapted to the upper end of the conveyor belt (2).

3. The high-efficiency screening equipment for raw materials used in municipal bridge construction according to claim 1, characterized in that: Screening plates (5) and adjusting screens (6) are both provided with screen holes. Guide rails are fixedly installed on both sides of the inner wall of the screening box (1). The two guide rails are slidably connected to the two ends of the screening plates (5).

4. The high-efficiency screening equipment for raw materials used in municipal bridge construction according to claim 1, characterized in that: There are two push cylinders (7). The fixed end of the push cylinder (7) is fixedly connected to the screening box (1), and the output end of the push cylinder (7) is rotatably connected to the left end of the adjusting screen (6).

5. The high-efficiency screening equipment for raw materials used in municipal bridge construction according to claim 1, characterized in that: The elastic connection assembly includes a connector (81), four connectors (81) are provided, and a connecting rod (82) is fixedly installed on the top of the mounting bracket (8). The upper end of the connecting rod (82) is slidably connected to the connector (81), and a spring (83) is sleeved on the outside of the connecting rod (82).

6. The high-efficiency screening equipment for raw materials used in municipal bridge construction according to claim 5, characterized in that: The surface of the connecting seat (81) and the screening box (1) are fixedly connected, and the upper and lower ends of the spring (83) are fixedly connected to the connecting seat (81) and the mounting bracket (8) respectively.

7. The high-efficiency screening equipment for raw materials used in municipal bridge construction according to claim 1, characterized in that: A support plate (101) is fixedly installed on the surface of the connecting frame (10). The upper end of the support plate (101) is fixedly connected to the side plate of the conveyor belt (2). A baffle is provided on the surface of the conveyor belt (2).

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