Sand screening machine

Abstract

The utility model relates to a sand screening machine which comprises a working box body, a working mechanism used for screening sand is installed in an inner cavity of the working box body, the working mechanism comprises a first motor, one side of an output shaft of the first motor is fixedly connected with a rotating rod, and the first motor is rotationally connected with the rotating rod through a coupler. A cam is fixedly connected to the outer wall of the rotating rod, and a filter plate is arranged at the top of the cam; and a shielding mechanism for shielding is mounted at the top of the working box body. The device has the beneficial effects that a cam is matched with a filter plate, a first motor is started and can drive a rotating rod to rotate, the outer wall of the rotating rod is fixedly connected with a cam, and the cam slides at the bottom of the filter plate, so that the filter plate can be driven to reciprocate by starting the first motor, and blockage of filter holes is avoided; meanwhile, the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand screening, in particular to a sand screening machine. Background Art

[0002] In construction, sand screening is an important step to clean up waste rocks in sand and separate coarse sand from fine sand. The quality of sand after screening directly affects the overall quality of the building. Currently, sand screening machines are mainly used to screen sand.

[0003] After searching, the Chinese patent number CN220310992U discloses that the utility model discloses a sand screening machine, which relates to the field of sand screening technology, including a machine body, a feed port is installed on the surface of the machine body, a hopper is installed on the surface of the machine body, and a filter is installed on the surface of the machine body; the surface of the filter is provided with a replacement structure, which is used to quickly replace the filter without replacing the filter frame, and the surface of the feed hopper is provided with an auxiliary structure, which is used to temporarily cover the feed hopper, and the replacement structure includes a slide rail, which is fixedly connected to the filter, and the inner wall of the slide rail is slidably connected with a slider. The sand screening machine provided by the utility model can achieve the effect of quickly or replacing the filter by setting a replacement structure, thereby avoiding the surface of the filter being damaged to varying degrees after the sand screening machine has been working for a long time, which leads to the fact that the sand cannot be effectively screened after passing through the filter in the subsequent sand screening process.

[0004] In the process of screening sand, the existing sand screening machine usually uses a filter structure to screen sand of different sizes. However, in actual operation, due to the lack of necessary vibration structure, sand is easy to stay in the filter, causing blockage, especially sand larger than the filter size, which easily makes it impossible to filter and screen the subsequent sand. Based on this, the utility model designs a sand screening machine to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a sand screening machine, which solves the technical problem of filter plate clogging.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] The utility model provides a sand screening machine, comprising a working box, an inner cavity of the working box is provided with a working mechanism for screening sand, the working mechanism comprises a first motor, one side of the output shaft of the first motor is fixedly connected with a rotating rod, the first motor and the rotating rod are rotatably connected through a coupling, a cam is fixedly connected to the outer wall of the rotating rod, a filter plate is arranged on the top of the cam, and starting the first motor can drive the rotating rod to rotate;

[0010] A shielding mechanism for shielding is installed on the top of the working box.

[0011] Optionally, filter holes are provided in the inner cavity of the filter plate, and the filter holes are arranged in multiple groups and distributed in a rectangular array. Telescopic rods are fixedly connected between the filter plate and the working box, and the telescopic rods are arranged in multiple groups and distributed in a rectangular array.

[0012] Optionally, a feeding device is fixedly connected to the top of the working box body, a slide groove is opened on the front side of the working box body, a slider is slidably connected in the inner cavity of the slide groove, two groups of slide grooves and sliders are arranged and symmetrically distributed around the working box body, and the slide groove is convex in shape to improve the stability of the movement of the slider.

[0013] Optionally, a storage box is slidably connected to the inner cavity of the working box body, a handle is fixedly connected to the front of the storage box, and the storage box is fixedly connected to the slider, so that the storage box moves with the movement of the handle.

[0014] Optionally, the shielding mechanism includes a supporting frame, a second motor is fixedly connected to one side of the supporting frame, a bidirectional screw is fixedly connected to one side of the output shaft of the second motor, the second motor and the bidirectional screw are rotationally connected via a coupling, and the bidirectional screw rotates as the second motor is started.

[0015] Optionally, the outer ring of the bidirectional screw is threadedly connected to a moving block, the bottom of the moving block is fixedly connected to a sealing plate, and two groups of the moving blocks and the sealing plates are arranged and symmetrically distributed with the feeding device.

[0016] Optionally, limit rods are fixedly connected between the support frames, two groups of limit rods are provided and symmetrically distributed with respect to the support frames, and the limit rods are inserted into the inner cavity of the moving block. The limit rods can make the moving block move more stably.

[0017] (III) Beneficial effects

[0018] The beneficial effects of the utility model are:

[0019] 1. In the utility model, the first motor is started through the cooperation of the cam and the filter plate. The start of the first motor can drive the rotating rod to rotate. Since the outer wall of the rotating rod is fixedly connected with the cam, the cam slides on the bottom of the filter plate. Therefore, starting the first motor can drive the filter plate to reciprocate, thereby avoiding blockage of the filter holes and improving the working efficiency of the device.

[0020] 2. In the utility model, the second motor is started through the cooperation of the bidirectional screw and the sealing plate, and the second motor drives the bidirectional screw to rotate. Since the bidirectional screw is threadedly connected to the moving block, the moving block will move closer to or farther away from each other as the second motor is started, and drive the sealing plates closer to or farther away from each other. When the two sealing plates are close to each other, the top of the feeding device can be sealed to prevent dust from falling into. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of Example 1 of the sand screening machine of the present utility model;

[0022] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 3 for Figure 2 A magnified image of point A;

[0024] Figure 4 It is a side view of Example 2 of the sand screening machine of the present utility model.

[0025] [Description of Reference Numerals]

[0026] 1. Working box; 2. First motor; 3. Rotating rod; 4. Cam; 5. Filter plate; 6. Filter hole; 7. Telescopic rod; 8. Feeding device; 9. Slide; 10. Sliding block; 11. Storage box; 12. Handle; 13. Support frame; 14. Second motor; 15. Bidirectional screw rod; 16. Moving block; 17. Sealing plate; 18. Limit rod. DETAILED DESCRIPTION

[0027] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 1 The orientation is used as a reference.

[0028] The technical problem of filter plate clogging is solved by the embodiment of the utility model. Starting the first motor 2 can drive the rotating rod 3 to rotate. Since the outer wall of the rotating rod 3 is fixedly connected with the cam 4, the cam 4 slides on the bottom of the filter plate 5. Therefore, starting the first motor 2 can drive the filter plate 5 to reciprocate, thereby avoiding clogging of the filter hole 6 and improving the working efficiency of the device.

[0029] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0030] Embodiment 1:

[0031] Reference Figure 1-Figure 3 A sand screening machine comprises a working box 1, in which a working mechanism for screening sand is installed, the working mechanism comprises a first motor 2, a rotating rod 3 is fixedly connected to one side of the output shaft of the first motor 2, the first motor 2 and the rotating rod 3 are rotationally connected through a coupling, a cam 4 is fixedly connected to the outer wall of the rotating rod 3, a filter plate 5 is arranged on the top of the cam 4, and starting the first motor 2 can drive the rotating rod 3 to rotate;

[0032] A shielding mechanism for shielding is installed on the top of the working box 1. The inner cavity of the filter plate 5 is provided with filter holes 6, which are arranged in multiple groups and distributed in a rectangular array. A telescopic rod 7 is fixedly connected between the filter plate 5 and the working box 1, and the telescopic rod 7 is arranged in multiple groups and distributed in a rectangular array.

[0033] A feeding device 8 is fixedly connected to the top of the working box 1, a slide groove 9 is opened on the front of the working box 1, a slider 10 is slidably connected in the inner cavity of the slide groove 9, two groups of slide grooves 9 and sliders 10 are arranged and symmetrically distributed with the working box 1, and the slide groove 9 is convex in shape to improve the stability of the movement of the slider 10.

[0034] In the embodiment of the utility model, firstly, the sand to be screened is poured from the feeding device 8. Since the inner cavity of the working box body 1 is provided with a filter plate 5, the filter plate 5 can screen the sand. At the same time, when the first motor 2 is started, the start of the first motor 2 can drive the rotating rod 3 to rotate. Since the outer wall of the rotating rod 3 is fixedly connected with a cam 4, the cam 4 slides at the bottom of the filter plate 5, so starting the first motor 2 can drive the filter plate 5 to reciprocate, avoid the clogging of the filter hole 6, and improve the working efficiency of the device. The screened sand will fall into the storage box 11 under the influence of gravity. The storage box 11 is slidably connected to the inner cavity of the working box body 1. When the screened sand needs to be taken out, the handle 12 is held and dragged. Since the handle 12 is fixedly connected to the storage box 11, the storage box 11 will move with the movement of the handle 12, so the storage box 11 can be dragged out by holding the handle 12.

[0035] Embodiment 2:

[0036] Reference Figure 1-Figure 4 A storage box 11 is slidably connected in the inner cavity of the working box body 1, a handle 12 is fixedly connected to the front of the storage box 11, and the storage box 11 is fixedly connected to the slider 10, and the storage box 11 will move with the movement of the handle 12.

[0037] The shielding mechanism includes a support frame 13, a second motor 14 is fixedly connected to one side of the support frame 13, a bidirectional screw 15 is fixedly connected to one side of the output shaft of the second motor 14, the second motor 14 and the bidirectional screw 15 are rotationally connected through a coupling, and the bidirectional screw 15 will rotate with the start of the second motor 14. The outer ring of the bidirectional screw 15 is threadedly connected to a moving block 16, and the bottom of the moving block 16 is fixedly connected to a sealing plate 17. The moving block 16 and the sealing plate 17 are provided in two groups and are symmetrically distributed with the feeding device 8. The support frames 13 are fixedly connected with a limit rod 18, and the limit rod 18 is provided in two groups and is symmetrically distributed with the support frame 13. The limit rod 18 is inserted in the inner cavity of the moving block 16, and the limit rod 18 can make the movement of the moving block 16 more stable.

[0038] In the embodiment of the utility model, in order to prevent dust from falling into the sand screening machine when it is idle, the second motor 14 is started at this time, and the second motor 14 drives the bidirectional screw rod 15 to rotate. Since the bidirectional screw rod 15 is threadedly connected with the moving block 16, the moving block 16 will move closer to or farther away from each other as the second motor 14 is started, and drive the sealing plates 17 closer to or farther away from each other. When the two sealing plates 17 are close to each other, the top of the feeding device 8 can be sealed to prevent dust from falling.

[0039] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0042] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0043] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A sand screening machine, comprising a working box (1), characterized in that: A working mechanism for screening sand is installed in the inner cavity of the working box (1), the working mechanism comprising a first motor (2), a rotating rod (3) is fixedly connected to one side of the output shaft of the first motor (2), the first motor (2) and the rotating rod (3) are rotatably connected via a coupling, a cam (4) is fixedly connected to the outer wall of the rotating rod (3), and a filter plate (5) is arranged on the top of the cam (4); A shielding mechanism for shielding is installed on the top of the working box (1).

2. A sand screening machine according to claim 1, characterized in that: The inner cavity of the filter plate (5) is provided with filter holes (6), and the filter holes (6) are arranged in a plurality of groups and distributed in a rectangular array. A telescopic rod (7) is fixedly connected between the filter plate (5) and the working box (1), and the telescopic rod (7) is arranged in a plurality of groups and distributed in a rectangular array.

3. A sand screening machine according to claim 1, characterized in that: A feeding device (8) is fixedly connected to the top of the working box (1), a slide groove (9) is provided on the front of the working box (1), a slider (10) is slidably connected in the inner cavity of the slide groove (9), and two groups of the slide groove (9) and the slider (10) are arranged and symmetrically distributed around the working box (1).

4. A sand screening machine according to claim 1, characterized in that: A storage box (11) is slidably connected in the inner cavity of the working box body (1), a handle (12) is fixedly connected to the front of the storage box (11), and the storage box (11) is fixedly connected to the slider (10).

5. A sand screening machine according to claim 1, characterized in that: The shielding mechanism comprises a support frame (13), a second motor (14) is fixedly connected to one side of the support frame (13), a bidirectional screw rod (15) is fixedly connected to one side of an output shaft of the second motor (14), and the second motor (14) and the bidirectional screw rod (15) are rotationally connected via a coupling.

6. A sand screening machine according to claim 5, characterized in that: The outer ring of the bidirectional screw rod (15) is threadedly connected to a moving block (16), and the bottom of the moving block (16) is fixedly connected to a sealing plate (17). Two groups of the moving blocks (16) and the sealing plates (17) are arranged and symmetrically distributed with respect to the feeding device (8).

7. A sand screening machine according to claim 5, characterized in that: The support frames (13) are fixedly connected with limiting rods (18), two groups of limiting rods (18) are provided and symmetrically distributed with respect to the support frames (13), and the limiting rods (18) are inserted into the inner cavity of the moving block (16).

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