A sand and gravel screening device

Abstract

The utility model provides a kind of sandstone screening device, it is related to construction technical field, including main body, control motor, screening part and auxiliary part;The main body is rectangular frame structure as a whole;The control motor is located in the middle position of main body bottom;The screening part is located above main body, and screening part is rectangular structure;The auxiliary part is located at the top of screening part, and auxiliary part is rectangular structure.The utility model solves the problem that the existing sandstone screening is mostly through straight sieve, the contact time of sandstone and straight sieve is short, this mode needs to repeatedly screen the sandstone screened, waste manpower, and further not convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of construction technology, and more specifically, it relates to a sand and gravel screening device. Background Technology

[0002] In infrastructure construction fields such as building, road construction, and water conservancy projects, sand and gravel are core aggregates. The uniformity of their particle size distribution directly affects the strength, density, and workability of building materials such as concrete and mortar. Sand and gravel screening devices, as key equipment for aggregate grading, separate sand and gravel particles of different sizes to provide raw materials that meet specifications for projects, making them an indispensable core piece of equipment in the building materials processing stage.

[0003] Based on existing technology, most current sand and gravel screening methods use direct screening, which results in short contact time between the sand and gravel and the direct screen. This method requires repeated screening of the already screened sand and gravel, wasting manpower and making it inconvenient to use. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a sand and gravel screening device to solve the problems raised in the background art.

[0005] This utility model discloses a sand and gravel screening device, which is achieved by the following specific technical means: A sand and gravel screening device includes a main body, a control motor, a screening component, and auxiliary components. The main body is a rectangular frame structure. The control motor is located at the bottom center of the main body. The screening component is located above the main body and is rectangular in structure. The auxiliary components are located on top of the screening component and are rectangular in structure.

[0006] Furthermore, the main body includes: an auxiliary rod, a sliding groove, and a rectangular platform; the auxiliary rod is located on both sides of the top of the main body, and the auxiliary rod has a rectangular structure and is inclined; the sliding groove is located in the middle of the top of the auxiliary rod, and the sliding groove has a rectangular structure; the rectangular platform is located in the middle of the top of the main body, and the top of the rectangular platform has an arc-shaped structure, and a circular hole is provided in the middle of the rectangular platform.

[0007] Furthermore, the rectangular platform has a rotating shaft inserted through a circular hole; the other end of the rotating shaft is eccentrically provided with a control shaft, and the control shaft is a cylindrical structure with a central protrusion.

[0008] Furthermore, the motor shaft of the control motor is connected to a rotating wheel, and the rotating wheel is connected to the rotating shaft via a transmission belt.

[0009] Furthermore, the screening component includes: a vertical rod and a screening trough; the vertical rod has a screening component at its bottom, and the vertical rod has a rectangular structure and a round hole at its bottom; a pulley is provided below the vertical rod, and the pulley is inserted into the round hole of the vertical rod and contacts the trough; the screening trough is located at the top center of the screening component, and the screening trough has a trapezoidal structure, and a discharge port is provided on one side of the screening trough.

[0010] Furthermore, the screening component also includes: an auxiliary block and a connecting rod; the auxiliary block is located at the middle of one end of the screening component, and the auxiliary block has a U-shaped structure, and a rotating shaft is provided at the middle of the auxiliary block; the connecting rod is located on the outside of the auxiliary block, and the connecting rod has an oval structure, and round holes are provided at both ends of the connecting rod, the rotating shaft of the auxiliary block is inserted into the round hole on one side of the connecting rod, and a control shaft is inserted into the round hole on the other side.

[0011] Furthermore, the auxiliary component includes an auxiliary groove; the auxiliary groove is located at the top center of the auxiliary component, and the auxiliary groove has a trapezoidal structure, and the bottom of the auxiliary groove has uniformly arranged screening holes.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In this device, when in use, the sand and gravel to be screened are placed in the auxiliary trough of the auxiliary component. The control motor is started, which drives the rotating wheel to rotate. The rotating wheel then drives the rotating shaft to rotate via the transmission belt, which in turn drives the control shaft to rotate eccentrically. This causes the control shaft to move the connecting rod, which in turn moves the auxiliary block and pushes the screening component. The screening component then causes the pulley at the bottom of the upright to slide in the chute, thus screening the sand and gravel in the auxiliary trough. The screened sand and gravel fall into the screening trough and are discharged through the discharge port, facilitating screening. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the main body and control motor of this utility model.

[0016] Figure 3This is a rear view schematic diagram of the main body and control motor of this utility model.

[0017] Figure 4 This is a structural schematic diagram of the screening component and auxiliary components of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Main body; 101. Auxiliary rod; 102. Slide groove; 103. Rectangular platform; 2. Control the motor; 201. Rotating wheel; 202. Rotating shaft; 203. Control shaft; 3. Screening components; 301. Upright pole; 302. Screening trough; 303. Auxiliary block; 304. Connecting rod; 4. Auxiliary components; 401. Auxiliary slot. 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] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model. Example

[0022] As attached Figure 1 To be continued Figure 4 As shown: This utility model provides a sand and gravel screening device, including a main body 1, a control motor 2, a screening component 3, and an auxiliary component 4; the main body 1 is a rectangular frame structure; the control motor 2 is located at the bottom middle position of the main body 1; the screening component 3 is located above the main body 1 and is a rectangular structure; the auxiliary component 4 is located on top of the screening component 3 and is a rectangular structure.

[0023] The main body 1 includes: an auxiliary rod 101, a sliding groove 102, and a rectangular platform 103; the auxiliary rod 101 is located on both sides of the top of the main body 1, and the auxiliary rod 101 has a rectangular structure and is inclined; the sliding groove 102 is located in the middle of the top of the auxiliary rod 101, and the sliding groove 102 has a rectangular structure; the rectangular platform 103 is located in the middle of the top of the main body 1, and the top of the rectangular platform 103 has an arc-shaped structure, and a circular hole is opened in the middle of the rectangular platform 103.

[0024] Using the above scheme, the slide groove 102 is used to assist the pulley in sliding.

[0025] The rectangular platform 103 has a rotating shaft 202 inserted through a circular hole; the other end of the rotating shaft 202 is eccentrically provided with a control shaft 203, and the control shaft 203 is a cylindrical structure with a central protrusion.

[0026] Among them, the motor shaft of the control motor 2 is connected to a rotating wheel 201, and the rotating wheel 201 is connected to the rotating shaft 202 via a transmission belt.

[0027] The screening component 3 includes: a vertical rod 301 and a screening trough 302; the vertical rod 301 is provided at the bottom of the screening component 3, and the vertical rod 301 has a rectangular structure and a round hole at the bottom of the vertical rod 301. A pulley is provided below the vertical rod 301, and the pulley is inserted into the round hole of the vertical rod 301 and is in contact with the trough 102; the screening trough 302 is located at the top middle position of the screening component 3, and the screening trough 302 has a trapezoidal structure, and a discharge port is provided on one side of the screening trough 302.

[0028] The screening component 3 also includes an auxiliary block 303 and a connecting rod 304. The auxiliary block 303 is located at the middle of one end of the screening component 3 and has a U-shaped structure. A rotating shaft is located in the middle of the auxiliary block 303. The connecting rod 304 is located on the outside of the auxiliary block 303 and has an oval structure. Circular holes are opened at both ends of the connecting rod 304. The rotating shaft of the auxiliary block 303 is inserted into the circular hole on one side of the connecting rod 304, and a control shaft 203 is inserted into the circular hole on the other side.

[0029] Using the above scheme, the connecting rod 304 is used to drive the auxiliary block 303 to move, so that it pushes the screening component 3 to move back and forth, thereby facilitating screening.

[0030] The auxiliary component 4 includes an auxiliary groove 401. The auxiliary groove 401 is located at the top center of the auxiliary component 4 and has a trapezoidal structure. The bottom of the auxiliary groove 401 has evenly arranged screening holes.

[0031] The specific usage and function of this embodiment are as follows: In this invention, when in use, the sand and gravel to be screened are placed in the auxiliary groove 401 of the auxiliary component 4. The control motor 2 is started, which drives the rotating wheel 201 to rotate. The rotating wheel 201 then drives the rotating shaft 202 to rotate via the transmission belt, which in turn drives the control shaft 203 to rotate eccentrically. The control shaft 203 then drives the connecting rod 304 to move, which in turn drives the auxiliary block 303 to move. At the same time, the connecting rod 304 pushes the screening component 3, which in turn drives the pulley at the bottom of the upright 301 to slide in the sliding groove 102, thereby screening the sand and gravel in the auxiliary groove 401. The screened sand and gravel fall into the screening trough 302 and are discharged through the discharge port, thus facilitating screening.

[0032] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A sand and gravel screening device, comprising a main body (1), a control motor (2), screening components (3), and auxiliary components (4); characterized in that: The main body (1) is a rectangular frame structure; the control motor (2) is located at the bottom middle of the main body (1); the screening component (3) is located above the main body (1) and is a rectangular structure; the auxiliary component (4) is located on top of the screening component (3) and is a rectangular structure.

2. The sand and gravel screening device as described in claim 1, characterized in that: The main body (1) includes: an auxiliary rod (101), a slide groove (102), and a rectangular platform (103); the auxiliary rod (101) is located on both sides of the top of the main body (1), and the auxiliary rod (101) is rectangular and inclined; the slide groove (102) is located in the middle of the top of the auxiliary rod (101), and the slide groove (102) is rectangular; the rectangular platform (103) is located in the middle of the top of the main body (1), and the top of the rectangular platform (103) is arc-shaped, and a circular hole is provided in the middle of the rectangular platform (103).

3. The sand and gravel screening device as described in claim 2, characterized in that: The rectangular platform (103) has a rotating shaft (202) inserted through a round hole; the other end of the rotating shaft (202) is eccentrically provided with a control shaft (203), and the control shaft (203) is a cylindrical structure with a central protrusion.

4. The sand and gravel screening device as described in claim 3, characterized in that: The motor shaft of the control motor (2) is connected to a rotating wheel (201), and the rotating wheel (201) is connected to the rotating shaft (202) via a transmission belt.

5. The sand and gravel screening device as described in claim 1, characterized in that: The screening component (3) includes: a vertical rod (301) and a screening trough (302); the vertical rod (301) is provided with a screening component (3) at its bottom, and the vertical rod (301) is a rectangular structure, and a round hole is provided at the bottom of the vertical rod (301). A pulley is provided below the vertical rod (301), and the pulley is inserted into the round hole of the vertical rod (301), and the pulley is in contact with the sliding groove (102); the screening trough (302) is located at the top middle position of the screening component (3), and the screening trough (302) is a trapezoidal structure, and a discharge port is provided on one side of the screening trough (302).

6. The sand and gravel screening device as described in claim 1, characterized in that: The screening component (3) further includes: an auxiliary block (303) and a connecting rod (304); the auxiliary block (303) is located at the middle of one end of the screening component (3), and the auxiliary block (303) has a U-shaped structure, and a rotating shaft is provided at the middle of the auxiliary block (303); the connecting rod (304) is located on the outside of the auxiliary block (303), and the connecting rod (304) has an oval structure, and round holes are provided at both ends of the connecting rod (304). The rotating shaft of the auxiliary block (303) is inserted into the round hole on one side of the connecting rod (304), and a control shaft (203) is inserted into the round hole on the other side.

7. The sand and gravel screening device as described in claim 1, characterized in that: The auxiliary component (4) includes: an auxiliary groove (401); the auxiliary groove (401) is located at the top center of the auxiliary component (4), and the auxiliary groove (401) has a trapezoidal structure, and the bottom of the auxiliary groove (401) is provided with uniformly arranged screening holes.

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