Gravel screening device for constructional engineering

Abstract

The utility model discloses a gravel screening device for constructional engineering in the technical field of construction equipment, which comprises a driving device and a screening mechanism, the driving device comprises a mounting frame, a first motor, a moving rod and a rotating plate, and a cross rod is fixed on the inner side wall of the mounting frame through a bolt; according to the arrangement of the gravel screening device for constructional engineering, a first motor and a rotating disc are mounted in the mounting frame, a second rotating column is mounted on the rotating disc, and the rotating disc is driven by the first motor to rotate, so that the second rotating column can move in an inner cavity of a rotating plate; when a second rotating column moves, a rotating plate can rotate by taking a first rotating column as a rotating point, and when the rotating plate rotates, the top of the rotating plate can push a clamping seat, so that a moving rod horizontally reciprocates, and then a screen frame can be driven to reciprocate at the top of a supporting frame, so that gravel can be dispersed on the surface of a screen mesh and shakes; the sand and stone screening efficiency is improved.

Description

Technical Field

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

[0002] In the process of sand and gravel screening, a construction sand and gravel screening device is often used. Construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. Since the directly obtained sand and gravel are of different sizes and coarseness, they need to be screened before being put into construction.

[0003] When screening existing construction sand and gravel, it is difficult to quickly spread the sand and gravel on the surface of the screen, which will cause sand and gravel to accumulate, thereby affecting the screening efficiency of sand and gravel. To this end, a new technical solution is needed to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a sand and gravel screening device for construction projects, so as to solve the problem proposed in the above background technology that it is difficult to quickly spread the sand and gravel on the surface of the screen during screening, which will cause the accumulation of sand and gravel, thereby affecting the screening efficiency of sand and gravel.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A sand and gravel screening device for construction engineering, comprising a driving device and a screening mechanism, the driving device comprising a mounting frame, a first motor, a moving rod and a rotating plate, the inner side wall of the mounting frame being fixed with a cross bar by bolts, the first motor being connected to the inner side wall of the mounting frame by a cross plate, the movable end key of the first motor being connected to a rotating disk, the surface of the rotating disk being fixed with a second rotating column by bolts, the moving rod passing through the top of the mounting frame, the bottom of the moving rod being welded with a holder, the bottom end of the rotating plate being connected to the cross bar by a first rotating column, a through hole being opened inside the rotating plate, the second rotating column being located in the through hole, and the top of the rotating plate being connected to the holder by a third rotating column; the screening mechanism is located on the right side of the mounting frame, the screening mechanism comprises a support frame and a screen frame, the outer side wall of the screen frame being connected to the end of the moving rod by bolts, the inner side wall of the screen frame being fixed with a screen, and the screen frame being located at the top of the support frame.

[0006] In order to conveniently guide the unqualified stones out of the screen frame after screening, as a preferred sand and gravel screening device for construction projects of the present invention, the outer wall of the screen frame is rotatably connected to a baffle via a rotating shaft, and the outer wall of the screen frame is fixed with a second motor via bolts, the driving end of the second motor is connected to the baffle, and the bottom end of the baffle is in contact with the screen.

[0007] In order to conveniently control the reciprocating movement of the screen frame on the top of the support frame, as a preferred sand and gravel screening device for construction engineering of the present invention, a guide groove is opened on the top of the support frame, and a sliding bar is welded on the bottom of the screen frame, and the sliding bar is in sliding contact with the guide groove.

[0008] In order to reduce the resistance encountered by the second rotating column and the third rotating column during use, as a preferred sand and gravel screening device for construction engineering of the present invention, the second rotating column is externally sleeved with a first sleeve, and the third rotating column is externally sleeved with a second sleeve.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the setting of the sand and gravel screening device for construction projects is reasonable in structural design. A first motor and a rotating disk are installed in the mounting frame, and a second rotating column is installed on the rotating disk. The rotating disk is rotated under the drive of the first motor, so that the second rotating column can move in the inner cavity of the rotating plate. When the second rotating column moves, the rotating plate can rotate with the first rotating column as the rotation point. When the rotating plate rotates, its top can push the card seat, so that the moving rod can reciprocate horizontally, and then drive the screen frame to reciprocate on the top of the support frame, so that the sand and gravel can be dispersed on the surface of the screen and shake, so as to improve the screening efficiency of the sand and gravel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the drive device of the utility model;

[0012] Figure 3 This is a schematic diagram of the screening mechanism structure of the utility model.

[0013] In the figure: 1, driving device; 11, mounting frame; 111, crossbar; 112, first rotating column; 12, first motor; 121, rotating disk; 122, second rotating column; 13, moving rod; 131, card seat; 14, rotating plate; 141, third rotating column;

[0014] 2. Screening mechanism; 21. Support frame; 211. Guide groove; 22. Screen frame; 221. Screen; 222. Baffle; 223. Second motor; 224. Slide bar. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1-3 The utility model provides a technical solution: including a driving device 1 and a screening mechanism 2.

[0017] In the present technical solution, a sand and gravel screening device for construction engineering, the driving device 1 includes a mounting frame 11, a first motor 12, a moving rod 13 and a rotating plate 14, the inner wall of the mounting frame 11 is fixed with a cross bar 111 by bolts, the mounting frame 11 is a U-shaped structure, the first motor 12 is connected to the inner wall of the mounting frame 11 through a cross plate, the two cross plates are symmetrically distributed on the outside of the first motor 12, the two ends of the first motor 12 are respectively fixed with the inner wall of the mounting frame 11 and the outer wall of the first motor 12 by bolts, the moving end key of the first motor 12 is connected with a rotating disk 121, the surface of the rotating disk 121 is fixed with a second rotating column 122 by bolts, and the moving rod 1 3 passes through the top of the mounting frame 11, and a clamping seat 131 is welded to the bottom of the moving rod 13. The bottom end of the rotating plate 14 is connected to the cross bar 111 through the first rotating column 112. The first rotating column 112 and the cross bar 111 are fixed by bolts. The bottom end of the rotating plate 14 is sleeved on the outside of the first rotating column 112 and is rotatably connected. The interior of the rotating plate 14 is provided with a through hole, and the second rotating column 122 is located in the through hole. The top of the rotating plate 14 is connected to the clamping seat 131 through the third rotating column 141. The third rotating column 141 and the top of the rotating plate 14 are fixed by bolts. The bottom of the clamping seat 131 is provided with a downwardly opening U-shaped groove, and the third rotating column 141 slides in the U-shaped groove.

[0018] In this technical solution, the mounting frame 11 and the cross bar 111 are used to provide mounting points for the installation of adjacent parts, and the first motor 12 is used to provide power for the rotation of the rotating disk 121, so that the second rotating column 122 can rotate in a ring. When the rotating disk 121 rotates, the second rotating column 122 can slide in the through-hole in the rotating plate 14, so that the rotating plate 14 can be controlled to rotate along the first rotating column 112. While the rotating plate 14 rotates, the third rotating column 141 can slide in the U-shaped groove to drive the moving rod 13 to move back and forth in the horizontal direction, thereby driving the screen frame 22 to move back and forth on the top of the support frame 21.

[0019] The screening mechanism 2 is located on the right side of the mounting frame 11. The screening mechanism 2 includes a support frame 21 and a screen frame 22. The outer wall of the screen frame 22 is connected to the end of the movable rod 13 by bolts. A screen 221 is fixed to the inner wall of the screen frame 22. The screen 221 is tilted in the inner cavity of the screen frame 22. The inclined surface of the screen 221 points to the baffle 222. The screen frame 22 is located on the top of the support frame 21.

[0020] In this technical solution, the sand and gravel to be screened are poured onto the screen 221, and the screen frame 22 moves back and forth along the top of the support frame 21 under the action of external force, allowing the sand and gravel to slide between the screen 221 to complete the screening of the sand and gravel.

[0021] In some technical solutions, reference Figure 1 and Figure 3 The outer wall of the screen frame 22 is rotatably connected to a baffle 222 via a rotating shaft. The outer wall of the screen frame 22 is fixed with a second motor 223 via bolts. The driving end of the second motor 223 is connected to the baffle 222, and the bottom end of the baffle 222 is in contact with the screen 221.

[0022] In this technical solution, the second motor 223 can drive the baffle 222 to rotate. When screening sand and gravel, the baffle 222 is in a vertical state. When it is necessary to discharge the sand and gravel that do not meet the size after screening in the inner cavity of the screen frame 22, the baffle 222 is in a downward inclined state under the action of the second motor 223, so that the sand and gravel slide out along the surface of the baffle 222.

[0023] In some technical solutions, reference Figure 1 and Figure 3 A guide groove 211 is formed on the top of the support frame 21 , and a slide bar 224 is welded on the bottom of the screen frame 22 , and the slide bar 224 is in sliding contact with the guide groove 211 .

[0024] In this technical solution, the guide groove 211 and the slide bar 224 can be used to control the sliding trajectory of the screen frame 22 on the top of the support frame 21, so that the screen frame 22 can stably perform reciprocating sliding motion on the top of the support frame 21.

[0025] In some technical solutions, reference Figure 1-2 The outer portion of the second rotating column 122 is sleeved with a first sleeve, and the outer portion of the third rotating column 141 is sleeved with a second sleeve.

[0026] In this technical solution, the first sleeve can reduce the frictional resistance between the second rotating column 122 and the rotating plate 14 , while the second sleeve can reduce the frictional resistance between the third rotating column 141 and the clamping seat 131 .

[0027] Working principle: First, connect the first motor 12 and the second motor 223 to the external control device and power supply, turn on the control switch of the first motor 12, and the first motor 12 drives the rotating disk 121 to rotate, so that the rotating disk 121 slides along the perforation inside the rotating plate 14. At this time, the bottom end of the rotating plate 14 rotates along the first rotating column 112, and the rotating plate 14 swings left and right. When the rotating plate 14 rotates, the third rotating column 141 slides along the U-shaped groove in the base 131, which can control the base 131 and the moving rod 13 to make reciprocating motion left and right in the horizontal direction, thereby driving the screen frame 22 along the support frame 2 1 makes a left and right reciprocating motion, at this time the sand and gravel to be screened are guided to the screen 221, at this time the sand and gravel are screened by the screen 221, and the sand and gravel that meet the use specifications fall from the screen 221 and fall to the ground, while the sand and gravel that do not meet the use specifications gather at the angle between the baffle 222 and the screen 221. When too much sand and gravel gather, the control switch of the second motor 223 is turned on, and the second motor 223 drives the baffle 222 to rotate clockwise, so that the baffle 222 is turned from a vertical state to a downward oblique state. At this time, the sand and gravel slide out of the inner cavity of the screen frame 22 along the inclined surface of the baffle 222. After cleaning, the screening of the sand and gravel can be continued.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A sand and gravel screening device for construction engineering, characterized in that: The invention comprises a driving device (1) and a screening mechanism (2), wherein the driving device (1) comprises a mounting frame (11), a first motor (12), a moving rod (13) and a rotating plate (14), wherein a cross bar (111) is fixed to the inner side wall of the mounting frame (11) by bolts, the first motor (12) is connected to the inner side wall of the mounting frame (11) by the cross plate, the moving end of the first motor (12) is key-connected to a rotating disk (121), and a surface of the rotating disk (121) is fixed by bolts. A second rotating column (122), the moving rod (13) passes through the top of the mounting frame (11), a base (131) is welded to the bottom of the moving rod (13), the bottom end of the rotating plate (14) is connected to the cross bar (111) through the first rotating column (112), a through hole is opened inside the rotating plate (14), the second rotating column (122) is located in the through hole, and the top of the rotating plate (14) is connected to the base (131) through a third rotating column (141); The screening mechanism (2) is located on the right side of the mounting frame (11), and comprises a support frame (21) and a screen frame (22). The outer wall of the screen frame (22) is connected to the end of the moving rod (13) by bolts, and a screen (221) is fixed to the inner wall of the screen frame (22). The screen frame (22) is located on the top of the support frame (21).

2. A sand and gravel screening device for construction engineering according to claim 1, characterized in that: The outer wall of the screen frame (22) is rotatably connected to a baffle plate (222) via a rotating shaft, and a second motor (223) is fixed to the outer wall of the screen frame (22) via bolts, a driving end of the second motor (223) is connected to the baffle plate (222), and a bottom end of the baffle plate (222) is in contact with the screen (221).

3. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: A guide groove (211) is formed at the top of the support frame (21), and a slide bar (224) is welded at the bottom of the screen frame (22), wherein the slide bar (224) is in sliding contact with the guide groove (211).

4. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: The exterior of the second rotating column (122) is sleeved with a first sleeve, and the exterior of the third rotating column (141) is sleeved with a second sleeve.

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