A concrete sandstone raw material coarse and fine separation device
By using a motor to drive the slide to rotate and the hopper to vibrate, the problems of inefficient sand and gravel screening and poor material feeding and discharging in existing devices have been solved, achieving efficient screening and smooth material feeding and discharging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XILI CONCRETE CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-04
AI Technical Summary
Existing sand and gravel screening devices for concrete processing are not efficient enough in screening sand and gravel raw materials, and the feeding and discharging process is not smooth enough.
The slide is driven by a motor to rotate. The inner frame slides inside the outer frame by colliding with the top block. Combined with the vibration of the hopper, the filter screen moves back and forth and the hopper moves up and down, which enhances screening efficiency and smooth material discharge.
It improves the screening efficiency of sand and gravel raw materials, ensures smooth feeding and discharging processes, reduces material retention, and enhances the working efficiency of the equipment.
Smart Images

Figure CN224586351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of separation device technology, specifically a coarse and fine separation device for concrete sand and gravel raw materials. Background Technology
[0002] Utility model patent CN213887151U discloses a sand and gravel screening device for concrete processing. This device includes a screening box with collection vertical boxes on both sides. Connecting blocks are welded to both sides of the screening box, with one side of each connecting block welded to one side of a collection vertical box. A feed pipe and a drive motor are welded to the top of the screening box. Two sets of feed pipes communicate with the interior of the screening box. A rotating column is rotatably installed inside the screening box. This sand and gravel screening device can drive a circular screen to rotate, which can accelerate the screening efficiency, separate stones and sand, and provide assistance for subsequent cement preparation. It also improves the utilization rate of sand and stones, reducing waste. Furthermore, it reduces the amount of large stones remaining on the filter screen. However, this device has some shortcomings: the screening efficiency for sand and gravel raw materials is not high enough, and the feeding and discharging process is not smooth enough. Therefore, improvements are needed. Utility Model Content
[0003] The purpose of this utility model is to provide a coarse and fine separation device for concrete sand and gravel raw materials, which solves the problems of insufficient efficiency in screening sand and gravel raw materials and unsmooth feeding and discharging processes.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a coarse and fine concrete sand and gravel raw material separation device, comprising an outer frame, an inner frame slidably connected inside the outer frame, a filter screen fixedly connected inside the inner frame, the left end of the filter screen penetrating through the inner frame, the filter screen and the outer frame being slidably connected, a support plate fixedly connected inside the outer frame, a motor fixedly installed at the lower end of the support plate, the motor shaft penetrating through the support plate and rotatably connected to the support plate, and a vibration mechanism being provided on the motor shaft.
[0005] Preferably, a hopper is slidably connected to the inside of the outer frame, and the hopper and the inner frame are slidably connected. By providing the hopper, it is easier for the raw material to enter the filter screen.
[0006] Preferably, a guide groove is fixedly connected to the outer side of the outer frame, and the guide groove is slidably connected to the filter screen. The guide groove guides the material during feeding.
[0007] Preferably, the vibration mechanism includes a V-shaped cover, which is fixedly connected inside the outer frame. The V-shaped cover is rotatably connected to the motor shaft. The upper end of the motor shaft contacts a slide block. A double-ended screw is threadedly connected inside the motor shaft. A top block is slidably connected inside the slide block, and a spring is installed inside the slide block. The motor drives the slide block to rotate, causing the top block to rotate and collide with the inner frame. This causes the inner frame to slide within the outer frame, resulting in the filter screen moving back and forth and generating vibration. This makes the screening of sand and gravel materials by the filter screen more efficient.
[0008] Preferably, a connecting seat is mounted on the outer side of the bidirectional screw via a bearing, and the connecting seat and the slide are fixedly connected. The movement of the slide is controlled by providing the connecting seat.
[0009] Preferably, a guide block is fixedly connected to the lower end of the top block, and the guide block is slidably connected to the slide block. The guide block guides the movement of the top block.
[0010] Preferably, one end of the spring is fixedly connected to the slide, and the other end of the spring is fixedly connected to the top block. By setting the spring, the top block is elastically compressed.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model uses a motor to drive the slide to rotate, which causes the top block to rotate and collide with the inner frame, causing the inner frame to slide within the outer frame, which in turn causes the filter screen to move back and forth and generate vibration, thus making the filter screen more efficient at screening sand and gravel raw materials.
[0013] 2. This utility model allows the inner frame to move back and forth and contact the hopper, thereby enabling the hopper to move up and down and generate vibration, which in turn makes the raw materials in the hopper discharge more smoothly. Attached Figure Description
[0014] Figure 1 This is a perspective view of the overall structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Outer frame sectional view;
[0016] Figure 3 This utility model Figure 2 The inner frame section view;
[0017] Figure 4 This utility model Figure 2 A cross-sectional view of the slide.
[0018] In the diagram: 1. Outer frame; 2. Inner frame; 3. Hopper; 4. Filter screen; 5. Guide groove; 6. Support plate; 7. Motor; 8. Vibration mechanism; 81. V-shaped cover; 82. Slide block; 83. Bidirectional screw; 84. Connecting seat; 85. Top block; 86. Guide block; 87. Spring. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1-3 A coarse and fine concrete sand and gravel raw material separation device includes an outer frame 1, an inner frame 2 slidably connected inside the outer frame 1, a hopper 3 slidably connected inside the outer frame 1, the hopper 3 and the inner frame 2 being slidably connected, the hopper 3 being provided to facilitate the raw material entering the filter screen 4, the filter screen 4 being fixedly connected inside the inner frame 2, the left end of the filter screen 4 penetrating through the inner frame 2, the filter screen 4 being slidably connected to the outer frame 1, a guide groove 5 being fixedly connected to the outer side of the outer frame 1, the guide groove 5 and the filter screen 4 being slidably connected, the guide groove 5 being provided to guide the material discharge, a support plate 6 being fixedly connected inside the outer frame 1, a motor 7 being fixedly installed at the lower end of the support plate 6, the rotating shaft of the motor 7 penetrating through the support plate 6 and being rotatably connected to the support plate 6, and a vibration mechanism 8 being provided on the rotating shaft of the motor 7.
[0021] Please see Figure 2 , Figure 4 The vibration mechanism 8 includes a V-shaped cover 81, which is fixedly connected inside the outer frame 1. The V-shaped cover 81 is rotatably connected to the shaft of the motor 7. The upper end of the shaft of the motor 7 contacts a slide block 82. A double-ended screw 83 is threadedly connected inside the shaft of the motor 7. A connecting seat 84 is mounted on the outer side of the double-ended screw 83 via a bearing. The connecting seat 84 and the slide block 82 are fixedly connected. By setting the connecting seat 84, the movement of the slide block 82 is controlled. A top block 85 is slidably connected inside the slide block 82. A guide block 86 is fixedly connected to the lower end of the top block 85. The guide block 86 and... The slide block 82 is slidably connected, and the top block 85 is guided by the guide block 86. The slide block 82 is equipped with a spring 87. One end of the spring 87 is fixedly connected to the slide block 82, and the other end of the spring 87 is fixedly connected to the top block 85. By setting the spring 87, the top block 85 is elastically compressed. The motor 7 drives the slide block 82 to rotate, which causes the top block 85 to rotate and collide with the inner frame 2. This causes the inner frame 2 to slide within the outer frame 1, which in turn causes the filter screen 4 to move back and forth and generate vibration, thereby making the screening of sand and gravel raw materials by the filter screen 4 more efficient.
[0022] The specific implementation process of this utility model is as follows: When in use, the raw material is poured into the hopper 3, and the raw material enters the filter screen 4 through the hopper 3. The filter screen 4 screens the raw material. The motor 7 is started, and the motor 7 drives the slide 82 to rotate, which in turn causes the slide 82 to drive the top block 85 to rotate. The top block 85 rotates and collides with the inner frame 2, which causes the inner frame 2 to slide within the outer frame 1, thereby causing the filter screen 4 to move back and forth and generate vibration, thus making the screening of sand and gravel raw materials by the filter screen 4 more efficient. The bidirectional screw 83 is manually rotated, and the bidirectional screw 83 rotates and the rotating shaft of the motor 7 to make a threaded movement, which causes the connecting seat 84 to drive the slide 82 to move. This allows the spring 87 to elastically squeeze the top block 85. The raw material screened by the filter screen 4 slides onto the guide groove 5. Through the back and forth movement of the inner frame 2 and its contact with the hopper 3, the hopper 3 can move up and down and generate vibration, thus making the discharge of raw material in the hopper 3 smoother.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for separating coarse and fine concrete aggregates, comprising an outer frame (1), characterized in that: The outer frame (1) is slidably connected to the inner frame (2), and the inner frame (2) is fixedly connected to the filter screen (4). The left end of the filter screen (4) passes through the inner frame (2). The filter screen (4) and the outer frame (1) are slidably connected. The outer frame (1) is fixedly connected to the inner frame (6). The lower end of the support plate (6) is fixedly installed with a motor (7). The rotating shaft of the motor (7) passes through the support plate (6) and is rotatably connected to the support plate (6). A vibration mechanism (8) is provided on the rotating shaft of the motor (7).
2. The coarse and fine separation device for concrete sand and gravel raw materials according to claim 1, characterized in that: The hopper (3) is slidably connected inside the outer frame (1), and the hopper (3) and the inner frame (2) are slidably connected.
3. The coarse and fine separation device for concrete sand and gravel raw materials according to claim 1, characterized in that: The outer frame (1) is fixedly connected to a guide groove (5), and the guide groove (5) and the filter screen (4) are slidably connected.
4. The coarse and fine separation device for concrete sand and gravel raw materials according to claim 1, characterized in that: The vibration mechanism (8) includes a V-shaped cover (81), which is fixedly connected inside the outer frame (1). The V-shaped cover (81) is rotatably connected to the shaft of the motor (7). The upper end of the shaft of the motor (7) contacts a slide (82). A double screw (83) is threadedly connected inside the shaft of the motor (7). A top block (85) is slidably connected inside the slide (82). A spring (87) is provided inside the slide (82).
5. The coarse and fine separation device for concrete sand and gravel raw materials according to claim 4, characterized in that: A connecting seat (84) is mounted on the outer side of the bidirectional screw (83) via a bearing, and the connecting seat (84) and the slide (82) are fixedly connected.
6. The coarse and fine separation device for concrete sand and gravel raw materials according to claim 4, characterized in that: The lower end of the top block (85) is fixedly connected to a guide block (86), and the guide block (86) and the slide block (82) are slidably connected.
7. The coarse and fine separation device for concrete sand and gravel raw materials according to claim 4, characterized in that: One end of the spring (87) is fixedly connected to the slide (82), and the other end of the spring (87) is fixedly connected to the top block (85).