Sand screening machine for constructional engineering

Abstract

The utility model discloses a sand screening machine for constructional engineering, and relates to the technical field of sand screening machines, the sand screening machine comprises a roller assembly composed of outer fixing cylinders, a fine reinforcing mesh, a grid cylinder, an inner fixing cylinder and a thick reinforcing mesh, the fine reinforcing mesh and the grid cylinder are fixed between the two outer fixing cylinders, the grid cylinder is distributed on the outer side of the fine reinforcing mesh, and the inner fixing cylinder is fixed between the inner fixing cylinder and the thick reinforcing mesh. The thick reinforcing mesh is fixed between the two inner fixing barrels, the inner fixing barrels are fixed to the inner side of the outer fixing barrel through a support, and the outer side of the outer fixing barrel is provided with a quick-mounting assembly used for mounting and fixing the arc-shaped screen piece; the quick-mounting assembly comprises an arc-shaped mounting groove, a fixing base, an arc-shaped clamping frame, a fixing stud and a nut. According to the utility model, the quick assembly and disassembly of the arc-shaped sieve pieces can be realized through the arrangement of the quick assembly component, and compared with the traditional structure of replacing the whole sieve, the replacement cost is lower and the replacement is more convenient through the independent replacement of the single arc-shaped sieve piece.

Description

Technical Field

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

[0002] The drum sand screening machine is a device used to screen stones. After the crushed stones enter the drum, on the one hand, they are screened as the drum rotates, and on the other hand, the stones with large particle sizes flow forward along the slope of the drum and are gradually screened out through screens with different mesh sizes. The small stones fall into their respective funnels after being screened out, and then are transported out manually or sent to the finished product pile by gravity.

[0003] When the drum sand screening machine is actually in operation, the stone will impact the screen while being turned over by the drum. After a period of operation, the screen will be deformed. Therefore, the screen needs to be replaced regularly. However, the existing screen has an integral structure, and it is difficult to replace a large area of ​​the screen. It requires the cooperation of multiple people, which not only has low work efficiency but also high replacement cost. Based on this, a sand screening machine for construction projects is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a sand screening machine for construction engineering in order to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand screening machine for construction engineering, comprising a drum assembly consisting of an external fixed cylinder, a fine steel mesh, a grid cylinder, an internal fixed cylinder, and a coarse steel mesh, wherein the fine steel mesh and the grid cylinder are fixed between two external fixed cylinders, the grid cylinder is distributed outside the fine steel mesh, the coarse steel mesh is fixed between two internal fixed cylinders, the internal fixed cylinder is fixed to the inner side of the external fixed cylinder by a bracket, and a quick-install assembly for installing and fixing an arc-shaped screen is provided on the outer side of the external fixed cylinder;

[0006] The quick-install assembly includes an arc-shaped installation groove, a fixing seat, an arc-shaped clamping frame, a fixing stud, and a nut;

[0007] The arc-shaped installation groove is formed on the outside of the grid tube, the fixing seat is fixed on the outside of the grid tube and is symmetrically distributed with the arc-shaped installation groove as the center, and the arc-shaped clamping frame is rotatably connected between the two fixing seats and pressed on the outside of the arc-shaped installation groove;

[0008] The fixing stud is fixed to the inner side of the arc-shaped installation groove and is distributed at a position away from the rotation axis of the arc-shaped clamping frame. The position of the arc-shaped clamping frame away from the rotation axis is sleeved on the outer side of the fixing stud. The nut is threadedly connected to the fixing stud and pressed on the outer side of the arc-shaped clamping frame to fix the arc-shaped clamping frame.

[0009] The arc-shaped installation groove is used to provide an installation space for the arc-shaped screen piece, and the arc-shaped clamping frame is used to clamp and fix the arc-shaped screen piece installed inside the arc-shaped installation groove.

[0010] As a further solution of the utility model: the number of the quick-release components is set to be multiple and divided into multiple groups, the multiple quick-release components in each group of the quick-release components are evenly distributed along the circumferential direction of the grid tube, and the multiple groups of the quick-release components are evenly distributed along the straight direction of the grid tube.

[0011] As a further solution of the utility model: the grid tube is formed with a plurality of arc-shaped notches on the outside, the plurality of arc-shaped notches correspond to the positions of the arc-shaped installation slots in the plurality of quick-install components, and the size of the arc-shaped installation slots is larger than the size of the arc-shaped notches;

[0012] The outer wall size of the arc-shaped screen piece matches the inner wall size of the arc-shaped installation groove.

[0013] As a further solution of the utility model: a plurality of fixing studs are correspondingly arranged in a single arc-shaped installation groove, and through holes matching the fixing studs are opened on the arc-shaped screen plate.

[0014] As a further solution of the utility model: the outer wall size of the arc-shaped clamping frame is larger than the inner wall size of the arc-shaped installation groove, and the inner wall size of the arc-shaped clamping frame is smaller than the inner wall size of the arc-shaped installation groove and larger than the arc-shaped slot opening size.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By setting up a quick-release assembly, the arc-shaped screen can be quickly disassembled and assembled. By replacing a single arc-shaped screen separately, compared with the traditional structure of replacing the entire screen, not only the replacement cost is lower, but also the replacement is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the roller assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation of the curved screen of the utility model;

[0020] Figure 4 For the utility model Figure 3 A magnified image of the position in the middle;

[0021] Figure 5 This is a structural distribution diagram of the quick-install component of the utility model.

[0022] In the figure: 1. Roller assembly; 101. External fixing cylinder; 102. Fine steel mesh; 103. Grid cylinder; 104. Internal fixing cylinder; 105. Coarse steel mesh; 2. Quick-release assembly; 201. Arc-shaped mounting groove; 202. Fixing seat; 203. Arc-shaped clamping frame; 204. Fixing stud; 205. Nut; 3. Arc-shaped screen. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 5 In an embodiment of the utility model, a sand screening machine for construction engineering includes a drum assembly 1 composed of an outer fixed cylinder 101, a fine steel mesh 102, a grid cylinder 103, an inner fixed cylinder 104, and a coarse steel mesh 105. The fine steel mesh 102 and the grid cylinder 103 are fixed between two outer fixed cylinders 101, the grid cylinder 103 is distributed outside the fine steel mesh 102, the coarse steel mesh 105 is fixed between two inner fixed cylinders 104, the inner fixed cylinder 104 is fixed to the inner side of the outer fixed cylinder 101 through a bracket, and a quick-install assembly 2 for installing and fixing the arc-shaped screen plate 3 is provided on the outer side of the outer fixed cylinder 101;

[0025] The quick-install assembly 2 includes an arc-shaped installation groove 201, a fixing seat 202, an arc-shaped clamping frame 203, a fixing stud 204, and a nut 205;

[0026] The arc-shaped installation groove 201 is formed on the outside of the grid tube 103, the fixing seat 202 is fixed on the outside of the grid tube 103 and is symmetrically distributed with the arc-shaped installation groove 201 as the center, and the arc-shaped clamping frame 203 is rotatably connected between the two fixing seats 202 and pressed on the outside of the arc-shaped installation groove 201;

[0027] The fixing studs 204 are fixed to the inner side of the arc-shaped installation groove 201 and are distributed at a position away from the rotation axis of the arc-shaped clamping frame 203. The position of the arc-shaped clamping frame 203 away from the rotation axis is sleeved on the outer side of the fixing studs 204. The nuts 205 are threadedly connected to the fixing studs 204 and pressed on the outer side of the arc-shaped clamping frame 203 to fix the arc-shaped clamping frame 203.

[0028] The arc-shaped installation groove 201 is used to provide an installation space for the arc-shaped screen piece 3, and the arc-shaped clamping frame 203 is used to clamp and fix the arc-shaped screen piece 3 installed inside the arc-shaped installation groove 201;

[0029] There are multiple quick-install components 2 divided into multiple groups. The multiple quick-install components 2 in each group of quick-install components 2 are evenly distributed along the circumferential direction of the grid tube 103 , and the multiple groups of quick-install components 2 are evenly distributed along the linear direction of the grid tube 103 .

[0030] In this embodiment: it is necessary to add that: a roller for rolling support of the outer fixed cylinder 101 is arranged below the drum assembly 1, and the roller is connected to an external motor through a rotating shaft coupling to drive the drum assembly 1 to rotate as a whole, and the inner fixed cylinder 104 and the coarse steel mesh 105 form an inner screening cylinder for intercepting large particles of materials, and the outer fixed cylinder 101, the fine steel mesh 102 and the arc-shaped screen 3 installed on the outer side of the grid cylinder 103 form an outer screening cylinder for screening and separating small particles of materials and fine sand particles;

[0031] Through the structural arrangement of multiple arc-shaped screen pieces 3, when a single arc-shaped screen piece 3 is deformed, it can be replaced individually, and the operation steps are as follows:

[0032] The nut 205 is loosened to separate it from the fixing bolt 204, and the fixation of the arc-shaped clamping frame 203 is released. Then the arc-shaped clamping frame 203 is rotated to open, so that the clamping of the arc-shaped screen 3 is released. Then the arc-shaped screen 3 to be replaced can be taken out from the arc-shaped installation groove 201, and then the new arc-shaped screen 3 is installed in the arc-shaped installation groove 201. Finally, the arc-shaped clamping frame 203 is rotated to close, and then the nut 205 and the fixing bolt 204 are screwed and fixed.

[0033] By replacing a single curved screen 3, compared with the traditional structure of replacing the entire screen, not only the replacement cost is lower, but also the replacement is more convenient (it should be supplemented that: Appendix Figure 1 The middle is a state where the curved screen 3 is not installed).

[0034] Please refer to Figures 1 to 5 The grid tube 103 is formed with a plurality of arc-shaped notches on the outside, and the plurality of arc-shaped notches correspond to the arc-shaped installation slots 201 in the plurality of quick-install components 2 one by one, and the size of the arc-shaped installation slots 201 is larger than the size of the arc-shaped notches;

[0035] The outer wall size of the arc-shaped screen plate 3 matches the inner wall size of the arc-shaped installation groove 201;

[0036] The outer wall size of the arc-shaped clamping frame 203 is larger than the inner wall size of the arc-shaped installation groove 201 , and the inner wall size of the arc-shaped clamping frame 203 is smaller than the inner wall size of the arc-shaped installation groove 201 and larger than the size of the arc-shaped groove opening.

[0037] In this embodiment: the arc-shaped notch is used to provide space for fine sand particles to contact the arc-shaped screen plate 3;

[0038] The outer wall size of the arc-shaped clamping frame 203 is larger than the inner wall size of the arc-shaped installation groove 201, so that the edge of the arc-shaped screen plate 3 can be clamped and fixed in all directions.

[0039] Please refer to Figures 1 to 5 A plurality of fixing studs 204 are correspondingly arranged in a single arc-shaped installation groove 201 , and a through hole matching the fixing studs 204 is opened on the arc-shaped screen plate 3 .

[0040] In this embodiment: the structure of multiple fixing studs 204 can provide sufficient fixing force for fixing the arc-shaped clamping frame 203;

[0041] The arc-shaped screen plate 3 is provided with a through hole matching the fixing stud 204 , so that the arc-shaped screen plate 3 can be sleeved on the fixing stud 204 through the through hole, thereby achieving preliminary installation.

[0042] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sand screening machine for construction engineering, comprising a drum assembly (1) consisting of an outer fixed cylinder (101), a fine steel mesh (102), a grid cylinder (103), an inner fixed cylinder (104), and a coarse steel mesh (105), wherein the fine steel mesh (102) and the grid cylinder (103) are fixed between two outer fixed cylinders (101), the grid cylinder (103) is distributed outside the fine steel mesh (102), the coarse steel mesh (105) is fixed between two inner fixed cylinders (104), and the inner fixed cylinder (104) is fixed to the inner side of the outer fixed cylinder (101) through a bracket, characterized in that: A quick-install component (2) for installing and fixing the arc-shaped screen plate (3) is arranged on the outer side of the outer fixing cylinder (101); The quick-install assembly (2) comprises an arc-shaped installation groove (201), a fixing seat (202), an arc-shaped clamping frame (203), a fixing stud (204), and a nut (205); The arc-shaped installation groove (201) is formed on the outside of the grid tube (103), the fixing seat (202) is fixed on the outside of the grid tube (103) and is symmetrically distributed with the arc-shaped installation groove (201) as the center, and the arc-shaped clamping frame (203) is rotatably connected between the two fixing seats (202) and pressed on the outside of the arc-shaped installation groove (201); The fixing stud (204) is fixed to the inner side of the arc-shaped installation groove (201) and is distributed at a position away from the rotation axis of the arc-shaped clamping frame (203); the position of the arc-shaped clamping frame (203) away from the rotation axis is sleeved on the outer side of the fixing stud (204); the nut (205) is threadedly connected to the fixing stud (204) and pressed on the outer side of the arc-shaped clamping frame (203) for fixing the arc-shaped clamping frame (203); The arc-shaped installation groove (201) is used to provide an installation space for the arc-shaped screen plate (3), and the arc-shaped clamping frame (203) is used to clamp and fix the arc-shaped screen plate (3) installed inside the arc-shaped installation groove (201).

2. A sand screening machine for construction engineering according to claim 1, characterized in that: The number of the quick-assembly components (2) is multiple and divided into multiple groups; the multiple quick-assembly components (2) in each group of the quick-assembly components (2) are evenly distributed along the circumferential direction of the grid tube (103); and the multiple groups of the quick-assembly components (2) are evenly distributed along the linear direction of the grid tube (103).

3. A sand screening machine for construction engineering according to claim 2, characterized in that: The grid tube (103) is formed with a plurality of arc-shaped notches on the outside, the plurality of arc-shaped notches correspond to the positions of the arc-shaped installation slots (201) in the plurality of quick-install components (2) one by one, and the size of the arc-shaped installation slots (201) is larger than the size of the arc-shaped notches; The outer wall size of the arc-shaped screen plate (3) matches the inner wall size of the arc-shaped installation groove (201).

4. A sand screening machine for construction engineering according to claim 3, characterized in that: A plurality of fixing studs (204) are correspondingly arranged in a single arc-shaped installation groove (201), and through holes matching the fixing studs (204) are opened on the arc-shaped screen plate (3).

5. A sand screening machine for construction engineering according to claim 3, characterized in that: The outer wall size of the arc-shaped clamping frame (203) is larger than the inner wall size of the arc-shaped installation groove (201), and the inner wall size of the arc-shaped clamping frame (203) is smaller than the inner wall size of the arc-shaped installation groove (201) and larger than the size of the arc-shaped groove opening.

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