Gravel screening device

Abstract

The utility model relates to the technical field of gravel screening, and discloses a gravel screening device which comprises a mounting bottom frame, a screening drum is arranged at the top of the mounting bottom frame, a connecting bottom block is arranged at the bottom end of the mounting bottom frame, supporting legs are symmetrically arranged on the outer side of the connecting bottom block, and the bottom ends of the supporting legs are connected with idler wheels through connecting shafts. A guide inclined plane is arranged on the inner side of the top end of the connecting bottom block, and a material conveying mechanism is arranged at the bottom end of the connecting bottom block; according to the sand screening device, through the arranged guide inclined face and the material conveying mechanism, sand can fall downwards in the process that the screening drum rotates to screen sand and can move to the inner side of the material conveying mechanism through the inclined face of the guide inclined face, and the screened sand can be conveyed through the material conveying mechanism; and therefore, the situation that screened sand is located below the whole device and is inconvenient to treat can be avoided, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sand and gravel screening, and more specifically to a sand and gravel screening device. Background Art

[0002] During the construction process, construction raw materials such as cement, sand, steel bars and concrete are needed. In order to meet different construction requirements, the quality of sand required is also different. In order to obtain higher quality sand, it is generally necessary to use a sand screening device to screen the sand and remove the sand and gravel that do not meet the requirements.

[0003] After searching, a sand and gravel screening device disclosed in announcement number CN219483325U includes a frame and a drum screen, a wheel is arranged at the bottom of the frame, two support seats 1 are symmetrically arranged at the front end of the frame, and gears are rotatably arranged on the two support seats 1, an annular gear is arranged on the outer circumference of the front end of the drum screen, the drum screen is meshed with the two gears through the annular gear, any one of the two gears is driven by a motor, two support seats 2 are symmetrically arranged at the rear end of the frame, and rollers are rotatably arranged on the two support seats 2, the rear end of the drum screen is rollingly connected with the two rollers, an electric supporting leg is arranged at the front or rear end of the frame, an annular reinforcement plate is arranged in the middle of the drum screen, and a plurality of protrusions are arranged on the outer side of the annular reinforcement plate in the circumferential direction, a vertical pole is arranged on the side of the frame, a beating rod is hinged on the top of the vertical pole, the front end of the beating rod is against the outer side of the annular reinforcement plate, and the beating rod and the vertical pole are also connected by a spring.

[0004] The above-mentioned technical solution has certain beneficial effects, but in actual use, the screened sand is located below the frame, which is not convenient for taking out the sand, and it is also inconvenient to move the overall position when the sand is accumulated. For this reason, we propose a sand and gravel screening device. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a sand and gravel screening device to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: a sand and gravel screening device, comprising a mounting frame, a screening cylinder is arranged on the top of the mounting frame, a connecting bottom block is arranged at the bottom end of the mounting frame, supporting legs are symmetrically arranged on the outer side of the connecting bottom block, the bottom end of the supporting leg is connected to a roller through a connecting shaft, a guiding inclined surface is opened on the inner side of the top end of the connecting bottom block, and a feeding mechanism is arranged at the bottom end of the connecting bottom block;

[0007] Furthermore, a fixed installation groove is provided inside the connecting bottom block, and a stirring mechanism is movably connected to the inner side of the fixed installation groove.

[0008] Furthermore, one end of the bottom of the connecting base block is movably connected with a fastening bolt, and one end of the bottom of the connecting base block is connected with a mounting plate via a fastening bolt. The bottom of the mounting plate is fixedly connected with a first motor, and the output end of the first motor is clamped with the input end of the feeding mechanism via a flat key.

[0009] Furthermore, the feeding mechanism comprises a mounting sleeve block located at the bottom of the connecting bottom block, and a spiral feeding roller is movably connected inside the mounting sleeve block.

[0010] Furthermore, the upper portion of the spiral feed roller is located at the inner bottom of the guide slope, and the edge of the spiral feed roller is in contact with the inner side of the mounting block.

[0011] Furthermore, the stirring mechanism includes a rotating installation roller located inside the fixed installation groove, a plurality of stirring arms are fixedly connected to the outer side of the surface of the rotating installation roller, and one end of the rotating installation roller is fixedly connected to the second motor.

[0012] Furthermore, the outer side of the surface of the rotating installation roller is in contact with the inner side of the fixed installation groove, and the second motor and the connecting bottom block are fixedly connected to each other.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model is provided with a guide inclined surface and a feeding mechanism, so that when the screening drum rotates to screen sand and gravel, the sand can fall downward and move to the inner side of the feeding mechanism through the inclined surface of the guide inclined surface. The screened sand can be transported through the feeding mechanism, thereby avoiding the screened sand being located below the entire device and being inconvenient to handle, and the operation is convenient.

[0015] 2. The utility model is provided with a stirring mechanism, which can stir the sand inside the connecting bottom block during use to prevent the sand from piling up and agglomerating with each other. The inner side of the guide slope cannot move downward, so the sand cannot be quickly and stably delivered to the outside, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the fixed installation slot structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the feeding mechanism of the utility model.

[0019] Figure 4 This is a schematic diagram of the stirring mechanism structure of the utility model.

[0020] The accompanying drawings are marked as follows: 1. Mounting frame; 2. Screening cylinder; 3. Connecting bottom block; 4. Supporting leg; 5. Roller; 6. Guide ramp; 7. Feeding mechanism; 8. Fixed mounting groove; 9. Stirring mechanism; 10. Mounting plate; 11. Fastening bolts; 12. First motor; 13. Mounting sleeve; 14. Spiral feeding roller; 15. Rotating mounting roller; 16. Stirring arm; 17. Second motor. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Reference Figure 1-4 The utility model provides a sand and gravel screening device, comprising a mounting frame 1, a screening cylinder 2 is arranged on the top of the mounting frame 1, a connecting bottom block 3 is arranged at the bottom end of the mounting frame 1, supporting legs 4 are symmetrically arranged on the outer side of the connecting bottom block 3, a roller 5 is connected to the bottom end of the supporting leg 4 through a connecting shaft, a guiding inclined surface 6 is opened on the inner side of the top end of the connecting bottom block 3, and a feeding mechanism 7 is arranged at the bottom end of the connecting bottom block 3;

[0023] A fixed installation groove 8 is provided inside the connecting bottom block 3 , and a stirring mechanism 9 is movably connected to the inner side of the fixed installation groove 8 .

[0024] Among them, a fastening bolt 11 is movably connected to one end of the bottom of the connecting bottom block 3, and a mounting plate 10 is connected to one end of the bottom of the connecting bottom block 3 through the fastening bolt 11. A first motor 12 is fixedly connected to the bottom of the mounting plate 10, and an output end of the first motor 12 is mutually clamped with an input end of the feeding mechanism 7 through a flat key, so that the first motor 12 can stably provide power output to the feeding mechanism 7, so that the feeding mechanism 7 can be rotated and used normally. At the same time, the fastening bolt 11 can be rotated and disassembled, and the mounting plate 10 and the first motor 12 can also be quickly disassembled, maintained and repaired, and the operation is convenient.

[0025] Among them, the feeding mechanism 7 includes a mounting sleeve 13 located at the bottom of the connecting bottom block 3, and a spiral feeding roller 14 is movably connected inside the mounting sleeve 13, so that the first motor 12 can drive the spiral feeding roller 14, so that when the spiral feeding roller 14 rotates, it can stably transport the screened sand from the inner side of the mounting sleeve 13 and the guide slope 6 to the outside.

[0026] Among them, the upper part of the spiral feed roller 14 is located at the inner bottom of the guide slope 6, and the edge of the spiral feed roller 14 fits with the inner side of the mounting sleeve 13, so that the spiral feed roller 14 can rotate stably and transport the sand stably, which is easy to operate.

[0027] Among them, the stirring mechanism 9 includes a rotating installation roller 15 located on the inner side of the fixed installation groove 8, and a plurality of stirring arms 16 are fixedly connected to the outer side of the surface of the rotating installation roller 15. One end of the rotating installation roller 15 is fixedly connected to a second motor 17, so that the second motor 17 can drive the rotating installation roller 15, so that the rotating installation roller 15 can drive the stirring arm 16 to deflect, so that the stirring arm 16 can stir the sand located on the inner side of the guide slope 6, thereby preventing the sand from agglomerating and being unable to move normally to the inner side of the installation sleeve 13, and the operation is convenient.

[0028] Among them, the outer surface of the rotating installation roller 15 is in contact with the inner side of the fixed installation groove 8, and the second motor 17 and the connecting bottom block 3 are fixedly connected to each other, so that the rotating installation roller 15 and the second motor 17 can be used stably and are easy to operate.

[0029] The working principle of the utility model is as follows: during use, the sub-screening drum 2 is rotating to screen the sand and gravel, so that the sand can pass through the inner through hole of the sub-screening drum 2 and fall downward, so that the sand can enter the inner side of the guide slope 6 and move to the inner side of the mounting sleeve 13. At this time, the first motor 12 drives the spiral feed roller 14 so that the spiral feed roller 14 can rotate. During the rotation of the spiral feed roller 14, the sand on the inner side of the mounting sleeve 13 and the guide slope 6 can be effectively and stably discharged to the outside. At the same time, during the sand transportation process, the second motor 17 can stably drive the rotating mounting roller 15, so that the rotating mounting roller 15 can drive the stirring arm 16 to rotate, and stir the sand located on the inner side of the guide slope 6 to avoid sand agglomeration, which causes the sand to be unable to move normally to the inner side of the mounting sleeve 13. The overall structure is simple and quick and convenient to use.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A sand and gravel screening device, comprising a mounting frame (1), characterized in that: A screening cylinder (2) is provided at the top of the mounting frame (1), a connecting bottom block (3) is provided at the bottom end of the mounting frame (1), supporting legs (4) are symmetrically provided on the outer side of the connecting bottom block (3), the bottom ends of the supporting legs (4) are connected to rollers (5) via connecting shafts, a guiding inclined surface (6) is provided on the inner side of the top end of the connecting bottom block (3), a feeding mechanism (7) is provided at the bottom end of the connecting bottom block (3), a fixed mounting groove (8) is provided inside the connecting bottom block (3), a stirring mechanism (9) is movably connected to the inner side of the fixed mounting groove (8), the stirring mechanism (9) comprises a rotating mounting roller (15) located inside the fixed mounting groove (8), a plurality of stirring arms (16) are fixedly connected to the outer side of the surface of the rotating mounting roller (15), and a second motor (17) is fixedly connected to one end of the rotating mounting roller (15).

2. A sand and gravel screening device according to claim 1, characterized in that: A fastening bolt (11) is movably connected to one end of the bottom of the connecting bottom block (3); a mounting plate (10) is connected to one end of the bottom of the connecting bottom block (3) via the fastening bolt (11); a first motor (12) is fixedly connected to the bottom of the mounting plate (10); an output end of the first motor (12) is mutually clamped with an input end of a feeding mechanism (7) via a flat key.

3. A sand and gravel screening device according to claim 1, characterized in that: The feeding mechanism (7) comprises a mounting sleeve (13) located at the bottom of the connecting bottom block (3), and a spiral feeding roller (14) is movably connected inside the mounting sleeve (13).

4. A sand and gravel screening device according to claim 3, characterized in that: The upper part of the spiral feed roller (14) is located at the inner bottom of the guide inclined surface (6), and the edge of the spiral feed roller (14) is in contact with the inner side of the mounting sleeve (13).

5. The sand and gravel screening device according to claim 1, characterized in that: The outer side of the surface of the rotating installation roller (15) is in contact with the inner side of the fixed installation groove (8), and the second motor (17) and the connecting bottom block (3) are fixedly connected to each other.

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