Screening device for concrete production
By introducing the design of cleaning brushes and vibrating loading plates in the concrete production unit, the problem of screening drum clogging was solved, and efficient sand screening and collection was achieved.
Patent Information
- Application Number
- CN202422738178.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-11
AI Technical Summary
In the screening process of existing concrete production screening devices, fine particles or impurities easily adhere to the outer surface of the screening drum, causing blockage of the through holes and affecting the screening efficiency and effect.
A concrete production screening device was designed. A cleaning brush was used to frictionally clean the outer surface of the screening drum. A dual-shaft motor drove the eccentric wheel to vibrate the feeding plate to prevent blockage. At the same time, a reduction motor was used to drive the screening drum to screen and collect sand.
It effectively prevents the through holes of the screening drum from being blocked, improves the screening efficiency and effect, and facilitates the separation and collection of sand and impurities.
Smart Images
Figure CN223475505U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete production technology, and in particular to a concrete production screening device. Background Technology
[0002] In the construction industry, concrete is widely used as an important building material. In the concrete production process, screening is a key step. Its purpose is to separate aggregates and impurities of different particle sizes to ensure the accuracy of the concrete mix proportion, thereby improving the performance and quality of the concrete.
[0003] In existing concrete production screening devices, due to the complexity and diversity of concrete raw materials, some fine particles or impurities often adhere to the outer surface of the screening drum during the screening process. As the screening operation continues, these deposits may gradually block the through holes on the outer surface of the screening drum, thereby affecting the screening efficiency and effect. Therefore, there is a problem that it is not easy to clean the drum. Summary of the Invention
[0004] (a) Technical problems to be solved
[0005] To address the problems existing in the prior art, this utility model provides a concrete production screening device.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a concrete production screening device, comprising a sealed housing, a screening mechanism fixedly connected to the inner wall of the sealed housing, a feeding mechanism fixedly connected to the outer surface of the sealed housing, the feeding mechanism comprising a feeding bin fixedly connected to the outer surface of the sealed housing, a feeding plate fixedly connected to the inner side of the feeding bin, a dual-shaft motor fixedly connected to the lower surface of the feeding plate, an eccentric wheel fixedly connected to the output shaft of the dual-shaft motor, the screening mechanism comprising a limiting frame fixedly connected to the inner wall of the sealed housing, a screening drum rotatably connected to the inner side of the limiting frame, a fixing rod fixedly connected to the inner wall of the sealed housing, a cleaning brush fixedly connected to the outer surface of the fixing rod, and the outer surface of the cleaning brush fitting against the outer surface of the screening drum.
[0007] In a preferred embodiment of the concrete production screening device of this utility model, the inner wall of the screening drum is fixedly connected to a connecting frame, and the screening drum is inclinedly arranged on the inner wall of the sealed shell, and the outer surface of the screening drum has multiple sets of through holes.
[0008] By adopting the above technical solution, the screening drum facilitates the screening of sand, allowing larger impurities in the sand to be discharged from the bottom of the screening drum.
[0009] In a preferred embodiment of the concrete production screening device of this utility model, a reduction motor is fixedly connected to the outer surface of the limiting frame, and the output shaft of the reduction motor is fixedly connected to the outer surface of the connecting frame.
[0010] By adopting the above technical solution and starting the reduction motor, it is easy to screen the sand.
[0011] In a preferred embodiment of the concrete production screening device of this utility model, a fixing plate is fixedly connected to the outer surface of the limiting frame, the outer surface of the fixing plate is fixedly connected to the inner wall of the sealing shell, an impurity outlet is provided on the outer surface of the sealing shell, and a through hole is provided on the lower surface of the sealing shell.
[0012] By adopting the above technical solution, the fixed plate helps to prevent the screened sand from being discharged from the impurity outlet, allowing the screened sand to be discharged from the through hole on the lower surface of the sealed housing.
[0013] In a preferred embodiment of the concrete production screening device of this utility model, a movable collection bin is provided below the sealed housing, and universal wheels are fixedly connected to the four corners of the lower surface of the movable collection bin, and a sealing plate is fixedly connected to the inner wall of the sealed housing.
[0014] By adopting the above technical solution, the movable collection bin facilitates the collection of the screened sand, thereby facilitating the movement of the sand.
[0015] In a preferred embodiment of the concrete production screening device of this utility model, the end of the feeding plate away from the feeding hopper extends into the interior of the screening drum, and a baffle is fixedly connected to the outer surface of the feeding plate.
[0016] By adopting the above technical solution, the baffle can prevent sand from falling onto the inner wall of the sealed shell.
[0017] This utility model provides a concrete production screening device. It has the following beneficial effects:
[0018] 1. As the screening drum rotates, the outer surface of the cleaning brush rubs against the outer surface of the screening drum, thus cleaning the outer surface of the screening drum and preventing the through holes on the outer surface of the screening drum from becoming blocked.
[0019] 2. By starting the dual-axis motor, the output shaft of the dual-axis motor drives the eccentric wheel to rotate, which in turn allows the dual-axis motor to drive the feeding plate to vibrate slightly, thereby increasing the flow of sand on the upper surface of the feeding plate and preventing material blockage to a certain extent. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a front cross-sectional view of the overall structure of this utility model;
[0023] Figure 3 This is a side sectional view of the overall structure of this utility model;
[0024] Figure 4 This is a top view cross-sectional structural diagram of the entire utility model.
[0025] In the diagram, 1. Sealed housing; 2. Feeding mechanism; 201. Dual-shaft motor; 202. Eccentric wheel; 203. Feeding plate; 204. Baffle; 205. Feeding bin; 3. Screening mechanism; 301. Moving collection bin; 302. Impurity outlet; 303. Gear motor; 304. Limiting frame; 305. Screening drum; 306. Fixing plate; 307. Connecting frame; 308. Sealing plate; 309. Fixing rod; 310. Cleaning brush. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example
[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention. This embodiment provides a concrete production screening device, including a sealed housing 1. A screening mechanism 3 is fixedly connected to the inner wall of the sealed housing 1, and a feeding mechanism 2 is fixedly connected to the outer surface of the sealed housing 1. The screening mechanism 3 includes a limiting frame 304 fixedly connected to the inner wall of the sealed housing 1. A screening drum 305 is rotatably connected to the inner side of the limiting frame 304. A fixing rod 309 is fixedly connected to the inner wall of the sealed housing 1. A cleaning brush 310 is fixedly connected to the outer surface of the fixing rod 309. The outer surface of the cleaning brush 310 is in contact with the outer surface of the screening drum 305.
[0028] Specifically, a connecting frame 307 is fixedly connected to the inner wall of the screening drum 305, and the screening drum 305 is inclinedly arranged on the inner wall of the sealing shell 1. Multiple sets of through holes are opened on the outer surface of the screening drum 305. A reduction motor 303 is fixedly connected to the outer surface of the limiting frame 304. The output shaft of the reduction motor 303 is fixedly connected to the outer surface of the connecting frame 307. A fixing plate 306 is fixedly connected to the outer surface of the limiting frame 304. The outer surface of the fixing plate 306 is fixedly connected to the inner wall of the sealing shell 1. An impurity discharge port 302 is opened on the outer surface of the sealing shell 1. Through holes are opened on the lower surface of the sealing shell 1. A movable collection bin 301 is arranged below the sealing shell 1. Universal wheels are fixedly connected to the four corners of the lower surface of the movable collection bin 301. A sealing plate 308 is fixedly connected to the inner wall of the sealing shell 1.
[0029] As the screening drum 305 rotates further, the outer surface of the cleaning brush 310 rubs against the outer surface of the screening drum 305, so that the cleaning brush 310 can clean the outer surface of the screening drum 305 and prevent the through holes on the outer surface of the screening drum 305 from being blocked. Example
[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The feeding mechanism 2 includes a feeding bin 205 fixedly connected to the outer surface of the sealed housing 1. A feeding plate 203 is fixedly connected to the inner side of the feeding bin 205. A dual-axis motor 201 is fixedly connected to the lower surface of the feeding plate 203. An eccentric wheel 202 is fixedly connected to the output shaft of the dual-axis motor 201.
[0031] Specifically, the end of the feeding plate 203 away from the feed hopper 205 extends into the interior of the screening drum 305, and a baffle 204 is fixedly connected to the outer surface of the feeding plate 203.
[0032] The dual-axis motor 201 is then activated. The output shaft of the dual-axis motor 201 drives the eccentric wheel 202 to rotate, which in turn causes the dual-axis motor 201 to drive the feeding plate 203 to vibrate slightly. This facilitates the flow of sand on the upper surface of the feeding plate 203 and prevents material blockage to some extent.
[0033] Working principle: Sand is poured into the feed hopper 205, and then the dual-shaft motor 201 is started. The output shaft of the dual-shaft motor 201 drives the eccentric wheel 202 to rotate, which in turn causes the feed plate 203 to vibrate slightly. This increases the flow of sand on the surface of the feed plate 203 and prevents clogging to some extent. The sand then falls onto the inner wall of the screening drum 305. Then, the reduction motor 303 is started, and the output shaft of the reduction motor 303 drives the connecting frame 307 and the screening drum 305 to rotate, thereby driving the screening drum 305 to rotate. The sand inside the 5 rolls, thereby screening out impurities in the sand. The sand falls through the through holes on the outer surface of the screening drum 305 onto the inner wall of the sealing housing 1 or the outer surface of the sealing plate 308. Then, the sand slides down into the movable collection bin 301 under the action of gravity, which facilitates the transportation of the screened sand. When the screening drum 305 rotates, the outer surface of the cleaning brush 310 rubs against the outer surface of the screening drum 305, so that the cleaning brush 310 can clean the outer surface of the screening drum 305 and prevent the through holes on the outer surface of the screening drum 305 from being blocked.
[0034] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. A concrete production screening device, comprising a sealed housing (1), characterized in that: The inner wall of the sealed housing (1) is fixedly connected to a screening mechanism (3), and the outer surface of the sealed housing (1) is fixedly connected to a feeding mechanism (2). The feeding mechanism (2) includes a feeding bin (205) fixedly connected to the outer surface of the sealed housing (1), a feeding plate (203) fixedly connected to the inner side of the feeding bin (205), a dual-axis motor (201) fixedly connected to the lower surface of the feeding plate (203), and an eccentric wheel (202) fixedly connected to the output shaft of the dual-axis motor (201). The screening mechanism (3) includes a limiting frame (304) fixedly connected to the inner wall of the sealed housing (1). The inner side of the limiting frame (304) is rotatably connected to a screening drum (305), and the inner wall of the sealed housing (1) is fixedly connected to a fixing rod (309). The outer surface of the fixing rod (309) is fixedly connected to a cleaning brush (310), and the outer surface of the cleaning brush (310) is in contact with the outer surface of the screening drum (305).
2. The concrete production screening device according to claim 1, characterized in that: The inner wall of the screening drum (305) is fixedly connected to a connecting frame (307), and the screening drum (305) is inclinedly arranged on the inner wall of the sealing shell (1). Multiple sets of through holes are opened on the outer surface of the screening drum (305).
3. A concrete production screening device according to claim 2, characterized in that: A geared motor (303) is fixedly connected to the outer surface of the limiting frame (304), and the output shaft of the geared motor (303) is fixedly connected to the outer surface of the connecting frame (307).
4. A concrete production screening device according to claim 3, characterized in that: The outer surface of the limiting frame (304) is fixedly connected to a fixing plate (306), the outer surface of the fixing plate (306) is fixedly connected to the inner wall of the sealing shell (1), the outer surface of the sealing shell (1) is provided with an impurity outlet (302), and the lower surface of the sealing shell (1) is provided with a through hole.
5. A concrete production screening device according to claim 3, characterized in that: A movable collection chamber (301) is provided below the sealed housing (1). Universal wheels are fixedly connected to the four corners of the lower surface of the movable collection chamber (301), and a sealing plate (308) is fixedly connected to the inner wall of the sealed housing (1).
6. A concrete production screening device according to claim 5, characterized in that: The end of the feeding plate (203) away from the feed hopper (205) extends into the interior of the screening drum (305), and a baffle (204) is fixedly connected to the outer surface of the feeding plate (203).