Premixed concrete raw material screening device

Abstract

The utility model belongs to the field of concrete screening, and particularly relates to a premixed concrete raw material screening device which comprises a bottom plate, a concrete screening box and a cleaning mechanism. The concrete screening device comprises a bottom plate, two supporting plates are fixedly connected to the bottom plate, the same concrete screening box is rotationally connected between the two supporting plates, a cleaning mechanism is arranged in the concrete screening box, a motor is fixedly installed on the bottom plate, and the output end of the motor is connected with the concrete screening box through a transmission assembly. And the cleaning mechanism comprises a moving rod, cleaning plates, a first sleeve, a first gear, a second gear, a rotating shaft, a third gear and a fourth gear, the concrete screening box is movably connected with the moving rod, and the moving rod is rotationally sleeved with the multiple cleaning plates. Through cooperation of all the components, the raw material screening device can achieve the effect of automatically screening raw materials and can also achieve the effect of automatically cleaning the screen.

Description

Technical Field

[0001] This utility model relates to the field of concrete screening technology, and in particular to a screening device for ready-mixed concrete raw materials. Background Technology

[0002] Concrete is a general term for engineering composite materials in which aggregates are bound together by cementing materials. The term "concrete" usually refers to cement concrete, also known as ordinary concrete, which is made by mixing cement as the cementing material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion. It is widely used in civil engineering.

[0003] When using concrete, it is necessary to screen it to improve its quality. Common concrete raw material screening devices mostly rely on manual screening, which takes a long time and is slow. During screening, concrete raw materials are also prone to splashing, resulting in concrete waste, greatly reducing screening efficiency, delaying the progress of subsequent work, and causing great inconvenience to users.

[0004] Therefore, we propose a premixed concrete raw material screening device to solve the problems in the background technology. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a premixed concrete raw material screening device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A premixed concrete raw material screening device includes a base plate, a concrete screening box, and a cleaning mechanism.

[0008] Two support plates are fixedly connected to the base plate, and the same concrete screening box is rotatably connected between the two support plates. A cleaning mechanism is provided inside the concrete screening box. An electric motor is fixedly installed on the base plate, and the output end of the electric motor is connected to the concrete screening box through a transmission assembly.

[0009] The cleaning mechanism includes a moving rod, cleaning plates, a sleeve, gear one, gear two, a rotating shaft, gear three, and gear four. The moving rod is movably connected to the concrete screening box, and multiple cleaning plates are rotatably mounted on the moving rod. All cleaning plates are in contact with the screen at the bottom of the concrete screening box. Driven by the electric motor and the transmission assembly, the concrete screening box can reciprocate, thus achieving automatic screening of raw materials. During this process, the sleeve one rotates reciprocally and engages with the moving rod via a threaded transmission, causing the moving rod to drive the multiple cleaning plates to slide reciprocally within the concrete screening box, thereby achieving automatic cleaning of the screen.

[0010] Specifically, one end of the moving rod is threadedly connected to a sleeve, and a fixing plate is rotatably mounted on the sleeve. The fixing plate is fixedly connected to one of the two support plates. The fixing plate provides limiting support for the sleeve, thereby facilitating threaded transmission between the sleeve and the moving rod.

[0011] Specifically, a gear one is fixedly connected to the sleeve one, a gear two is meshed with the gear one, a rotating shaft is fixedly connected to the gear two, the rotating shaft is rotatably connected to the support plate, a gear three is fixedly connected to the rotating shaft, a gear four is meshed with the gear three, and the gear four is fixedly connected to the concrete screening box for transmission.

[0012] Specifically, round pipes are fixedly connected to both sides of the concrete screening box, and the moving rod passes through the two round pipes. The two round pipes not only facilitate the rotation of the concrete screening box, but also facilitate the guidance of the moving rod.

[0013] Specifically, the two circular tubes are rotatably connected to the two support plates respectively, and the gear four is fixedly sleeved on one of the two circular tubes. During the reciprocating movement of the concrete screening box, the gear four is driven to reciprocate through the corresponding circular tube.

[0014] Specifically, the transmission assembly includes a transmission plate, a transmission rod, a ring plate, and a fixed plate. The output end of the motor is fixedly connected to the transmission plate, and the transmission rod is rotatably connected to the transmission plate. One end of the transmission rod is fixedly connected to the ring plate, and the ring plate is rotatably connected to the fixed rod. Both ends of the fixed rod are fixedly connected to the fixed plates. Both fixed plates are fixedly connected to the concrete screening box. Driven by the motor, the transmission plate rotates and transmits power to the transmission rod. Simultaneously, the transmission rod, through the transmission of the ring plate and the two fixed plates, drives the concrete screening box to swing back and forth on the two support plates, thereby causing the raw materials inside the concrete screening box to move back and forth. The screening effect is achieved by the screen at the bottom of the concrete screening box.

[0015] Specifically, a collection box is provided on the base plate, which corresponds to the concrete screening box and is used to collect the screened raw materials.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model discloses a premixed concrete raw material screening device. Driven by the electric motor and the transmission component, the concrete screening box can be reciprocated to achieve the purpose of automatic screening of raw materials. During this process, the sleeve rotates reciprocally and is threadedly driven by the gears 1, 2, 3 and 4. This causes the moving rod to drive multiple cleaning plates to slide reciprocally within the concrete screening box, thereby achieving the effect of automatic cleaning of the screen. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary. The structures, proportions, sizes, etc., shown in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance, and any modification of the structure, change of the proportional relationship, or adjustment of the size is not permitted.

[0019] Figure 1 This is a three-dimensional structural diagram of a premixed concrete raw material screening device proposed in this utility model;

[0020] Figure 2 This is a rear view structural diagram of a premixed concrete raw material screening device proposed in this utility model;

[0021] Figure 3 This is an assembly diagram of a premixed concrete raw material screening device proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the cleaning mechanism of a premixed concrete raw material screening device proposed in this utility model.

[0023] In the diagram: 1. Base plate; 2. Support plate; 3. Concrete screening box; 4. Moving rod; 5. Cleaning plate; 6. Motor; 7. Transmission plate; 8. Transmission rod; 9. Ring plate; 10. Fixed plate one; 11. Fixed plate two; 12. Sleeve one; 13. Gear one; 14. Gear two; 15. Rotating shaft; 16. Gear three; 17. Gear four; 18. Collection box. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figures 1-4 A premixed concrete raw material screening device includes a base plate 1, a concrete screening box 3, and a cleaning mechanism.

[0026] Two support plates 2 are fixedly connected to the base plate 1. The same concrete screening box 3 is rotatably connected between the two support plates 2. A cleaning mechanism is provided inside the concrete screening box 3. An electric motor 6 is fixedly installed on the base plate 1. The output end of the electric motor 6 is connected to the concrete screening box 3 through a transmission component.

[0027] The cleaning mechanism includes a moving rod 4, cleaning plates 5, sleeve 12, gear 13, gear 2 14, rotating shaft 15, gear 3 16, and gear 4 17. The moving rod 4 is movably connected to the concrete screening box 3, and multiple cleaning plates 5 are rotatably mounted on the moving rod 4. The multiple cleaning plates 5 are all in contact with the screen at the bottom of the concrete screening box 3. Driven by the motor 6 and the transmission component, the concrete screening box 3 can be made to swing back and forth, thereby achieving the effect of automatic screening of raw materials. In this process, through the cooperation and transmission between gear 13, gear 2 14, gear 3 16, and gear 4 17, the sleeve 12 rotates back and forth and is threadedly driven with the moving rod 4, thereby causing the moving rod 4 to drive the multiple cleaning plates 5 to slide back and forth inside the concrete screening box 3, thereby achieving the effect of automatic cleaning of the screen.

[0028] In this method, one end of the moving rod 4 is threadedly connected to a sleeve 12, and a fixing plate 2 11 is rotatably sleeved on the sleeve 12. The fixing plate 2 11 is fixedly connected to one of the two support plates 2. The fixing plate 2 11 provides limiting support for the sleeve 12, thereby facilitating the threaded transmission between the sleeve 12 and the moving rod 4.

[0029] In this configuration, a gear 13 is fixedly connected to the sleeve 12, a gear 14 is meshed with the gear 13, a rotating shaft 15 is fixedly connected to the gear 14, the rotating shaft 15 is rotatably connected to the support plate 2, a gear 16 is fixedly connected to the rotating shaft 15, a gear 17 is meshed with the gear 16, and the gear 17 is fixedly connected to the concrete screening box 3 for transmission.

[0030] In this method, round pipes are fixedly connected to both sides of the concrete screening box 3, and the moving rod 4 passes through the two round pipes. The two round pipes not only facilitate the rotation of the concrete screening box 3, but also facilitate the guidance of the moving rod 4.

[0031] In this method, the two circular tubes are rotatably connected to the two support plates 2 respectively, and the gear 4 17 is fixedly sleeved on one of the two circular tubes. During the reciprocating movement of the concrete screening box 3, the gear 4 17 is driven to reciprocate through the corresponding circular tube.

[0032] In this method, the transmission assembly includes a transmission plate 7, a transmission rod 8, a ring plate 9, and a fixed plate 10. The output end of the motor 6 is fixedly connected to the transmission plate 7, and the transmission rod 8 is rotatably connected to the transmission plate 7. One end of the transmission rod 8 is fixedly connected to the ring plate 9, and a fixed rod is rotatably connected to the ring plate 9. Both ends of the fixed rod are fixedly connected to the fixed plates 10. Both fixed plates 10 are fixedly connected to the concrete screening box 3. Driven by the motor 6, the transmission plate 7 rotates and transmits power to the transmission rod 8. At the same time, the transmission rod 8 drives the concrete screening box 3 to swing back and forth on the two support plates 2 through the transmission of the ring plate 9 and the two fixed plates 10, thereby causing the raw materials in the concrete screening box 3 to move back and forth. The raw materials are screened by the screen at the bottom of the concrete screening box 3.

[0033] In this method, a collection box 18 is provided on the base plate 1, which corresponds to the concrete screening box 3 and is used to collect the screened raw materials.

[0034] Working principle: When in use, the transmission plate 7 is rotated by the drive of the motor 6 and is transmitted to the transmission rod 8. At the same time, the transmission rod 8 drives the concrete screening box 3 to swing back and forth on the two support plates 2 through the transmission of the ring plate 9 and the two fixed plates 10, thereby causing the raw materials in the concrete screening box 3 to move back and forth, and the raw materials are screened by the screen at the bottom of the concrete screening box 3.

[0035] During the reciprocating movement of the concrete screening box 3, the corresponding circular tube drives the fourth gear 17 to reciprocate. At the same time, the fourth gear 17 meshes with the third gear 16, which in turn drives the second gear 14 to reciprocate synchronously through the rotating shaft 15. Meanwhile, the second gear 14 meshes with the first gear 13, which drives the first sleeve 12 to reciprocate on the fixed plate 2 11. Simultaneously, the first sleeve 12 is threadedly driven by the moving rod 4, which drives multiple cleaning plates 5 to reciprocate within the concrete screening box 3. This achieves the effect of cleaning the screen and preventing the raw materials from clogging the screen, thus improving the screening effect.

[0036] To address the issues of long screening times and slow speeds, this application uses an electric motor 6 as the power source. The output of the electric motor 6 is connected to a transmission assembly, which includes a transmission plate 7, a transmission rod 8, a ring plate 9, and a fixed plate 10. The electric motor 6 drives the transmission plate 7 to rotate, and the transmission plate 7 transmits power to the transmission rod 8. The transmission rod 8, through the ring plate 9 and the fixed plate 10, causes the concrete screening box 3 to oscillate back and forth on two support plates 2. This allows the raw materials inside the concrete screening box 3 to move continuously back and forth, and to be screened by the screen at the bottom of the concrete screening box 3. Compared with manual screening, this automatic screening method greatly improves the screening speed, shortens the screening time, and solves the problems of long screening times and slow speeds.

[0037] To address the issue of concrete raw materials easily splashing out during screening, leading to waste, this application employs a concrete screening box 3 structure for screening. The raw materials are screened within the enclosed concrete screening box 3. Compared to manual operation, this reduces interference from external factors in the screening process, lowers the possibility of concrete raw material splashing, and to a certain extent avoids concrete waste. Although there is no specific structural design to prevent splashing, this relatively enclosed screening environment effectively alleviates the problem.

[0038] To address the issues of low screening efficiency and delays in subsequent work, this application employs two main methods. First, automated screening increases screening speed and efficiency, eliminating the significant delays caused by manual screening. Second, a cleaning mechanism is incorporated, operating synchronously as the concrete screening box 3 reciprocates to screen materials. Through the coordinated transmission of gears 13, 14, 16, and 17, sleeve 12 rotates reciprocally and engages with the moving rod 4 via a threaded connection. The moving rod 4 drives multiple cleaning plates 5 to slide reciprocally within the concrete screening box 3, automatically cleaning the screen at the bottom and preventing blockage by raw materials. Maintaining unobstructed screen flow ensures continuous and efficient screening, further guaranteeing efficiency and preventing screen blockage from affecting efficiency and delaying subsequent work.

[0039] The technological advancements of this invention compared to existing technologies are as follows: through the cooperation of various components, not only can the raw materials be automatically screened, but the screen can also be automatically cleaned, improving convenience and screening efficiency. Moreover, the structure is simple and more practical.

Claims

1. A pre-mixed concrete raw material screening device, characterized in that, Includes a base plate (1), a concrete screening box (3), and a cleaning mechanism; Two support plates (2) are fixedly connected to the base plate (1). The same concrete screening box (3) is rotatably connected between the two support plates (2). A cleaning mechanism is provided inside the concrete screening box (3). An electric motor (6) is fixedly installed on the base plate (1). The output end of the electric motor (6) is connected to the concrete screening box (3) through a transmission assembly. The cleaning mechanism includes a moving rod (4), a cleaning plate (5), a sleeve (12), a gear (13), a gear (14), a rotating shaft (15), a gear (16), and a gear (17). The moving rod (4) is movably connected to the concrete screening box (3). Multiple cleaning plates (5) are rotatably mounted on the moving rod (4). All of the cleaning plates (5) are in contact with the screen at the bottom of the concrete screening box (3).

2. The ready-mixed concrete raw material screening device according to claim 1, characterized in that, One end of the moving rod (4) is threadedly connected to a sleeve (12), and a fixing plate (11) is rotatably sleeved on the sleeve (12). The fixing plate (11) is fixedly connected to one of the two support plates (2).

3. The ready-mixed concrete raw material screening device according to claim 2, characterized in that, A gear 1 (13) is fixedly connected to the sleeve 1 (12), a gear 2 (14) is meshed on the gear 1 (13), a rotating shaft (15) is fixedly connected to the gear 2 (14), and the rotating shaft (15) is rotatably connected to the support plate (2).

4. The ready-mixed concrete raw material screening device according to claim 3, characterized in that, Gear 3 (16) is fixedly connected to the rotating shaft (15), and gear 4 (17) is meshed on gear 3 (16). Gear 4 (17) is fixedly connected to the concrete screening box (3).

5. The ready-mixed concrete raw material screening device according to claim 4, characterized in that, Both sides of the concrete screening box (3) are fixedly connected with round pipes, and the moving rod (4) passes through the two round pipes.

6. The ready-mixed concrete raw material screening device according to claim 5, characterized in that, The two circular tubes are rotatably connected to the two support plates (2) respectively, and the gear four (17) is fixedly sleeved on one of the two circular tubes.

7. The ready-mixed concrete raw material screening device according to claim 1, characterized in that, The transmission assembly includes a transmission plate (7), a transmission rod (8), a ring plate (9), and a fixing plate (10). The output end of the motor (6) is fixedly connected to the transmission plate (7). The transmission rod (8) is rotatably connected to the transmission plate (7). One end of the transmission rod (8) is fixedly connected to the ring plate (9). The ring plate (9) is rotatably connected to the ring plate (9). Both ends of the fixing rod are fixedly connected to the fixing plate (10). Both fixing plates (10) are fixedly connected to the concrete screening box (3).

8. The ready-mixed concrete raw material screening device according to claim 1, characterized in that, The base plate (1) is provided with a collection box (18), which corresponds to the concrete screening box (3).

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