Sand screening machine for constructional engineering

Abstract

The utility model discloses a sand screening machine for constructional engineering, which relates to the technical field of sand screening machines and comprises supporting columns, the supporting columns are respectively erected at four corners of the sand screening machine, an upper bearing frame is fixedly connected to the inner sides of the top surfaces of the four supporting columns, a bearing plate is arranged under the upper bearing frame, and two ends of the bearing plate are longitudinally mounted on the supporting columns at the same end. A lower bearing frame is arranged under the bearing plate, the lower bearing frame is fixedly connected to the inner sides of the four supporting columns, a collecting box is arranged under the lower bearing frame, a flat car is arranged at the lower end of the collecting box, and the collecting box is horizontally placed on the flat car; through a multi-layer stacked centralized structure, operation in a narrow construction site is facilitated, the weight can be reduced through the simple structural frame, assembly and disassembly are more convenient and faster through modularization processing of all the assemblies, the use efficiency is improved, through cooperation of gears and gear sleeves, the screen is made to do reciprocating motion, the manual sand screening process is simulated, the two hands are liberated, and the labor intensity of workers is relieved. And finally, the problem that the sand screening machine is large in size and is not suitable for a construction site is solved.

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] Sand screening machine is a professional machine for screening sand in sand fields and construction sites. At present, the sand screening machines on the market are all large-scale sand screening machines, which have complex structures, strong operability, large size, large dedicated sites, and high investment requirements for the construction industry. Most of them are used for sand washing and sand mining. Construction sand screening is mainly for screening sand. Due to the small construction site, large sand screening machines are not suitable for construction sites. At present, sand screening at construction sites is mainly done by manual screening using sand screening nets, which has high labor intensity and low work efficiency. Therefore, the utility model improves and handles the above problems. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a sand screening machine for construction engineering.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sand screening machine for construction engineering, comprising support columns, which are respectively erected at the four corners of the device, and upper supporting frames are fixedly connected to the inner sides of the top surfaces of the four support columns, and a supporting plate is provided directly below the upper supporting frame, and both ends of the supporting plate are longitudinally installed on the support columns at the same end, and a lower supporting frame is provided directly below the supporting plate, and the lower supporting frame is fixedly connected to the inner sides of the four support columns, and a collecting box is provided directly below the lower supporting frame, a flatbed cart is provided at the lower end of the collecting box, and the collecting box is horizontally placed on the flatbed cart.

[0005] Preferably, an upper funnel is provided in the upper supporting frame, a sand screening assembly is provided on the top surface of the supporting plate, and a lower funnel is provided in the lower supporting frame.

[0006] Preferably, rollers are rotatably connected to the front and rear ends of the support plates on both sides, and limit plates are vertically fixed to the front and rear sides of the support plates. A screen frame is mounted on the rollers, and the front and rear end surfaces of the screen frame are tightly attached to the inner side of the limit plates on the support plates.

[0007] Preferably, an inclined slide groove is provided on the inner side of the screen frame, a screen plate is provided in the inclined slide groove, a screen mesh is provided in the screen plate, a discharge port is provided on one side of the screen frame, a groove is provided on the top surface on the other side, slide grooves are vertically provided on both sides of the inner wall of the groove, a limit slider is provided in the groove, sliders are fixed on both sides of the limit slider, and the sliders are embedded in the slide grooves on the inner side of the groove of the screen frame.

[0008] Preferably, the rear end face of the screen frame is fixedly connected to a gear sleeve, the inner side of the gear sleeve is meshed with a gear, the gear is fixed to a transmission shaft, the outer sleeve of the transmission shaft is provided with a bearing seat, the bearing seat is embedded in the upper end of a support plate, and the support plate is vertically fixed to a lower supporting frame.

[0009] Preferably, the rear end of the transmission shaft is fixedly connected to a first transmission wheel, a belt is arranged outside the first transmission wheel, the other end of the belt is sleeved on a second transmission wheel, and the second transmission wheel is fixedly connected to the rotating shaft of the motor.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, through the multi-layer stacked centralized structure, space is saved, which is convenient for operation in a narrow construction site, and the simple structural frame can reduce weight. The modular processing of each component makes disassembly and assembly more convenient and improves the use efficiency. Then, through the cooperation of the gear sleeve, the screen is made to reciprocate to simulate the manual sand screening process, which not only frees up both hands but also improves efficiency, and finally solves the problem that the sand screening machine is large in activity, heavy in mass, and not suitable for construction sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 It is a schematic diagram of the overall structure proposed by the utility model;

[0013] Figure 2 This is a schematic diagram of the top view structure proposed by the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of one side proposed by the utility model;

[0015] Figure 4 This is a schematic diagram of the support column and the upper supporting frame structure proposed by the utility model;

[0016] Figure 5 This is a schematic diagram of the screen frame structure proposed by the utility model;

[0017] Figure 6 This is a schematic diagram of the screen frame and screen plate structure proposed by the utility model;

[0018] Figure 7 This is a cross-sectional view of the screen frame structure proposed by the utility model.

[0019] Serial numbers in the figure: 1. Support column; 2. Upper supporting frame; 3. Support plate; 4. Lower supporting frame; 5. Upper funnel; 6. Lower funnel; 7. Screen frame; 8. Collecting box; 9. Flatbed car; 10. Screen plate; 11. Limiting slider; 12. Gear sleeve; 13. Gear; 14. Support plate; 15. Drive shaft; 16. Belt; 17. Motor; 18. Roller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Example: See Figure 1-7 A sand screening machine for construction engineering in the utility model comprises a support column 1, the support columns 1 are erected at the four corners of the device respectively, an upper support frame 2 is fixedly connected to the inner side of the top surface of the four support columns 1, a support plate 3 is arranged directly below the upper support frame 2, both ends of the support plate 3 are longitudinally installed on the support column 1 at the same end, a lower support frame 4 is arranged directly below the support plate 3, the lower support frame 4 is fixedly connected to the inner side of the four support columns 1, and a collection box 8 is arranged directly below the lower support frame 4, a flatbed car 9 is arranged at the lower end of the collection box 8, and the collection box 8 is horizontally placed on the flatbed car 9, an upper funnel 5 is arranged in the upper support frame 2, and the top surface of the support plate 3 is provided with a support frame 5, and the upper funnel 5 is arranged on the upper surface of the support plate 3. A sand screening component is provided, and a lower funnel 6 is provided in the lower supporting frame 4. The concentrated structure of multi-layer stacking saves space and is convenient for operation in a narrow construction site. The simple structural frame can reduce weight, and the modular processing of each component makes disassembly and assembly more convenient, thereby improving the use efficiency. The front and rear ends of the supporting plates 3 on both sides are laterally rotatably connected with rollers 18, and the front and rear sides of the supporting plates 3 are vertically fixed with limit plates, and a screening frame 7 is mounted on the roller 18. The front and rear end surfaces of the screening frame 7 are tightly attached to the inner side of the limit plate on the supporting plate 3. Through the cooperation of the limit plate and the roller 18, the sand screening component can move more smoothly and stably.

[0022] In the utility model, an inclined slide groove is provided on the inner side of the screen frame 7, a screen plate 10 is provided in the inclined slide groove, a screen mesh is provided in the screen plate 10, a discharge port is provided on one side of the screen frame 7, a groove is provided on the top surface on the other side, slide grooves are vertically provided on both sides of the inner wall of the groove, a limit slider 11 is provided in the groove, sliders are fixed on both sides of the limit slider 11, the sliders are set in the slide groove on the inner side of the groove of the screen frame 7, a gear sleeve 12 is fixed to the rear end face of the screen frame 7, a gear 13 is meshed and driven on the inner side of the gear sleeve 12, the gear 13 is fixed to the transmission shaft 15, a bearing seat is provided on the outer sleeve of the transmission shaft 15, the bearing seat is set on the upper end of the support plate 14, the support plate 14 is vertically fixed to the lower support frame 4, and the limit slider 11 moves up and down in the groove through the cooperation of the slider and the slide groove, which plays a role in fixing. The function of the sieve plate 10 is to facilitate the replacement of sieves with different apertures through the cooperation of the sieve frame 7 and the sieve plate 10, thereby improving practicality; the rear end face of the sieve frame 7 is fixedly connected to a gear sleeve 12, and a gear 13 is meshed and transmitted inside the gear sleeve 12, and the gear 13 is fixedly connected to a transmission shaft 15, and a bearing seat is provided on the outer sleeve of the transmission shaft 15, and the bearing seat is set on the upper end of a support plate 14, and the support plate 14 is vertically fixedly connected to the lower supporting frame 4, and the rear end of the transmission shaft 15 is fixedly connected to a first transmission wheel, and a belt 16 is provided on the outer sleeve of the first transmission wheel, and the other end of the belt 16 is sleeved on a second transmission wheel, and the second transmission wheel is fixedly connected to the rotating shaft of the motor 17, and through the cooperation of the gear 13 and the gear sleeve 12, the sieve is reciprocated to simulate the process of manual sand screening, which not only frees both hands but also improves efficiency.

[0023] Working principle: When the utility model is used, firstly, the electrical equipment is powered on, the motor 17 is started, and then the unprocessed sand is poured into the upper funnel 5. After the sand is gathered in the funnel, it falls on the screen. At this time, due to the action of the transmission mechanism driven by the motor 17, the screen makes a reciprocating motion on the roller 18. After the sand is screened, the qualified sand will fall into the lower funnel 6, and finally fall into the collection box 8 after being concentrated. The unqualified sand will be discharged from the discharge port at one end of the screen frame 7 due to the inclined screen. When the collection box 8 is full, the motor 17 is turned off, and the flatbed truck 9 is pulled to the appropriate position to unload the material. After returning to its position, repeat the above operation.

[0024] The above description 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 support column (1), characterized in that: The support columns (1) are erected at the four corners of the device respectively. An upper support frame (2) is fixedly connected to the inner side of the top surface of the four support columns (1). A support plate (3) is provided directly below the upper support frame (2). Both ends of the support plate (3) are longitudinally mounted on the support columns (1) at the same end. A lower support frame (4) is provided directly below the support plate (3). The lower support frame (4) is fixedly connected to the inner side of the four support columns (1). A collection box (8) is provided directly below the lower support frame (4). A flatbed car (9) is provided at the lower end of the collection box (8), and the collection box (8) is horizontally placed on the flatbed car (9).

2. A sand screening machine for construction engineering according to claim 1, characterized in that: An upper funnel (5) is provided in the upper supporting frame (2), a sand screening assembly is provided on the top surface of the supporting plate (3), and a lower funnel (6) is provided in the lower supporting frame (4).

3. A sand screening machine for construction engineering according to claim 2, characterized in that: Rollers (18) are rotatably connected between the front and rear ends of the support plates (3) on both sides, and limit plates are vertically fixed to the front and rear sides of the support plates (3). A sieve frame (7) is mounted on the rollers (18), and the front and rear end surfaces of the sieve frame (7) are closely attached to the inner side of the limit plates on the support plates (3).

4. A sand screening machine for construction engineering according to claim 3, characterized in that: An inclined slide groove is provided on the inner side of the screen frame (7), a screen plate (10) is provided in the inclined slide groove, a screen mesh is provided in the screen plate (10), a material discharge port is provided on one side of the screen frame (7), a groove is provided on the top surface on the other side, slide grooves are vertically provided on both sides of the inner wall of the groove, a limiting slider (11) is provided in the groove, sliders are fixed on both sides of the limiting slider (11), and the sliders are embedded in the slide grooves on the inner side of the groove of the screen frame (7).

5. A sand screening machine for construction engineering according to claim 4, characterized in that: The rear end face of the screen frame (7) is fixedly connected to a gear sleeve (12), the inner side of the gear sleeve (12) is meshed with a gear (13), the gear (13) is fixedly connected to a transmission shaft (15), the outer sleeve of the transmission shaft (15) is provided with a bearing seat, the bearing seat is set on the upper end of a support plate (14), and the support plate (14) is vertically fixed to the lower support frame (4).

6. A sand screening machine for construction engineering according to claim 5, characterized in that: The rear end of the transmission shaft (15) is fixedly connected to the first transmission wheel, a belt (16) is arranged outside the first transmission wheel, the other end of the belt (16) is sleeved on the second transmission wheel, and the second transmission wheel is fixedly connected to the rotating shaft of the motor (17).

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