Sand screening device

Abstract

The utility model provides a sand screening device, and relates to the technical field of constructional engineering. A bottom hopper is welded to the first supporting frame, a rotating frame is installed on the bottom hopper through a bearing, a screen drum is fixed to the rotating frame, a first discharging hopper and a second discharging hopper are arranged at the lower end of the bottom hopper, frames are installed at the lower end of the first discharging hopper and the lower end of the second discharging hopper, and cover plates are installed on the two frames through bolts. Opening and closing plates are arranged on the two frames in a sliding manner; according to the discharging device, the opening and closing plate with the tooth-shaped structure is arranged on the frame at the lower end of the first discharging hopper and the lower end of the second discharging hopper, the gear on the rotating rod is meshed with the tooth-shaped structure, opening and closing of the opening and closing plate can be easily controlled only by rotating the hand wheel, and accurate discharging is achieved; the hinged arm and the clamping arm hinged to the discharging hopper are used in cooperation with the hydraulic rod, a container for bearing materials can be effectively clamped, it is ensured that the discharging process is safe and stable, and the materials are prevented from being scattered.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering especially relates to a sand screening device. BACKGROUND

[0002] In the field of building engineering, sand plays a very key role, from the basic concrete pouring, to the wall plastering treatment, to the ground leveling operation, sand is an important raw material, in the concrete, sand as fine aggregate, with cement, stone etc. together constitute the framework structure of concrete, its gradation and quality directly affect the workability, strength and durability of concrete, in wall plastering and ground leveling, suitable sand can ensure that the mortar has good cohesiveness and construction performance, ensure the flatness and stability of the wall and ground. However, in the actual building sand mining and transportation process, various impurities are inevitably mixed in the sand, such as stones of different sizes, clumped soil, plant rhizomes and other sundries, the existence of these impurities will bring many hidden troubles to building engineering, so a sand screening device is designed.

[0003] In the traditional sand screening device, even if part of the equipment can be simply screened, the subsequent storage link lacks reasonable design, there is no structure specially for coarse and fine sand classification and storage, which cannot meet the use requirements of building engineering for sand of different particle sizes, increases the workload and cost of subsequent manual screening and classification, and it is difficult to meet the accurate demand of discharge under different construction scenes. SUMMARY

[0004] The embodiment of the disclosure relates to a sand screening device to solve the technical problems mentioned in the background.

[0005] The first aspect of the disclosure provides a sand screening device, which specifically comprises: a first support frame;

[0006] The first support frame is welded with a bottom hopper, the bottom hopper is installed with a rotating frame through a bearing, the rotating frame is fixed with a screen cylinder, the lower end of the bottom hopper is provided with a first discharge hopper and a second discharge hopper, the lower end of the first discharge hopper and the second discharge hopper is installed with a frame, the two groups of frames are installed with a cover plate through a bolt, and the two groups of frames are slidably provided with an opening and closing plate, the two groups of opening and closing plates are provided with a toothed structure, the two groups of frames are installed with a rotating rod through a bearing, the two groups of rotating rods are fixed with a gear, the two groups of gears are engaged with the toothed structure on the two groups of opening and closing plates, and the left end of the two groups of rotating rods is fixed with a hand wheel.

[0007] In at least some embodiments,

[0008] The rear end of the first support frame is welded with a welding frame, a motor base is installed on the welding frame through bolts, a first motor is installed on the motor base through bolts, and the output shaft of the first motor is connected with the rear end of the rotating frame through a shaft sleeve.

[0009] In at least some embodiments,

[0010] The first support frame is fixed with a top frame, the top frame is fixed with a feeding hopper, the lower end of the feeding hopper is located inside the rear side of the screen cylinder, and the height behind the screen cylinder is higher than the height in front of the screen cylinder.

[0011] In at least some embodiments,

[0012] The lower end of each of the two groups of frames is fixed with a discharge hopper, two groups of hinged arms are hinged on the two groups of discharge hoppers, clamping arms are welded on the lower end of the hinged arms, and a hydraulic rod is installed between the two groups of hinged arms on the discharge hopper.

[0013] In at least some embodiments,

[0014] The right side of the first support frame is provided with a storage hopper, the lower end of the storage hopper is fixed with two groups of support legs, the upper end of the storage hopper is fixed with a filling hopper, and the left end of the storage hopper is fixed with a material conveying channel.

[0015] In at least some embodiments,

[0016] The inside of the material conveying channel is provided with a spiral conveying roller through a bearing, a second support frame is fixed on the material conveying channel, and a connection box is fixed on the left end of the material conveying channel, and the lower end of the connection box is communicated with the upper end of the feeding hopper.

[0017] In at least some embodiments,

[0018] The connection box is hinged with an inspection plate, the left end of the connection box is provided with a gearbox through bolts, the output shaft of the gearbox is connected with the left end of the spiral conveying roller, and a second motor is installed on the gearbox through bolts.

[0019] The utility model provides a sand screening device, has the following beneficial effects:

[0020] In the utility model, the frame on the lower end of the first discharge hopper and the second discharge hopper is provided with an opening and closing plate with a toothed structure, the gear on the rotating rod is engaged with the toothed structure, and the opening and closing plate can be easily controlled by rotating the hand wheel, precise discharging is realized, the design is simple and convenient to operate, the discharging amount and the discharging speed can be accurately controlled according to actual needs, and the waste and excessive discharge of materials are avoided.

[0021] In addition, the hinged arm and the clamping arm hinged on the lower hopper cooperate with the use of the hydraulic rod to effectively clamp the container receiving the material, ensure the safety and stability of the discharging process, and prevent the material from spilling, which optimizes the discharging link and improves the continuity and safety of the entire sand screening operation process.

[0022] In addition, when the sand enters the sieve cylinder from the feeding hopper, the fine sand first passes through the screen on the sieve cylinder and falls into the first discharge hopper at the front end of the sieve cylinder under the rotating action of the sieve cylinder, realizing the screening of the fine sand; with the rotation of the sieve cylinder, the remaining coarse sand continues to move to the front side and falls into the second discharge hopper through the front end of the sieve cylinder, the frame and the controllable opening and closing plate arranged at the lower end of the first discharge hopper and the second discharge hopper, respectively, facilitating the storage of fine sand and coarse sand in different containers, realizing the effective classification and storage of fine sand and coarse sand, and meeting the use requirements of sand of different particle sizes in construction engineering. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0024] The drawings described in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0025] In the drawings:

[0026] Figure 1 A schematic view showing the overall structure of the present application is shown;

[0027] Figure 2 A structural schematic view of the rear side part of the first support frame of the present application is shown;

[0028] Figure 3 A structural schematic view of the rotating frame part of the present application is shown;

[0029] Figure 4 A structural schematic view of the frame part of the present application is shown;

[0030] Figure 5 A structural schematic view of the lower hopper part of the present application is shown;

[0031] Figure 6 A structural schematic view of the storage hopper part of the present application is shown.

[0032] LIST OF REFERENCE NUMERALS

[0033] 1, the first support frame; 11, the bottom hopper; 12, the rotating frame; 121, the sieve cylinder; 13, the welding frame; 131, the motor base; 132, the first motor; 14, the top frame; 141, the feeding hopper; 15, the first discharge hopper; 16, the second discharge hopper; 17, the frame; 171, the cover plate; 172, the opening and closing plate; 173, the rotating rod; 174, the hand wheel; 18, the lower discharge hopper; 181, the articulated arm; 182, the clamping arm; 183, the hydraulic rod;

[0034] 2, the storage hopper; 21, the supporting leg; 22, the filler hopper; 23, the material conveying channel; 231, the spiral conveying roller; 24, the connecting box; 241, the maintenance plate; 242, the gearbox; 243, the second motor; 25, the second support frame. DETAILED DESCRIPTION

[0035] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of the present application.

[0036] Embodiment one: please refer to Figures 1 to 6 :

[0037] The present application provides a sand screening device, comprising: a first support frame 1;

[0038] A bottom hopper 11 is welded on the first support frame 1, a rotating frame 12 is installed on the bottom hopper 11 through bearings, a sieve cylinder 121 is fixed on the rotating frame 12, a first discharge hopper 15 and a second discharge hopper 16 are arranged at the lower end of the bottom hopper 11, frames 17 are installed at the lower end of the first discharge hopper 15 and the second discharge hopper 16, cover plates 171 are installed on the two groups of frames 17 through bolts, opening and closing plates 172 are slidably arranged on the two groups of frames 17, toothed structures are arranged on the two groups of opening and closing plates 172, rotating rods 173 are installed on the two groups of frames 17 through bearings, gears are fixed on the two groups of rotating rods 173, the two groups of gears are engaged with the toothed structures on the two groups of opening and closing plates 172, and hand wheels 174 are fixed at the left ends of the two groups of rotating rods 173.

[0039] A welding frame 13 is welded at the rear end of the first support frame 1, a motor base 131 is installed on the welding frame 13 through bolts, a first motor 132 is installed on the motor base 131 through bolts, and the output shaft of the first motor 132 is connected with the rear end of the rotating frame 12 through a shaft sleeve.

[0040] In the embodiments of the present application,

[0041] The first support frame 1 is fixed with a top frame 14, and the top frame 14 is fixed with a feeding hopper 141, the lower end of which is located inside the rear side of the screen cylinder 121, and the height of the rear side of the screen cylinder 121 is higher than that of the front side of the screen cylinder 121, which is designed to utilize the principle of gravity, so that the sand entering the screen cylinder 121 can naturally move from the higher rear end to the lower front end during the rotation of the screen cylinder 121, and in this process, the sand is in contact with the screen of the screen cylinder 121, fully realizing the screening.

[0042] In example two, on the basis of example one,

[0043] The lower end of each of the two groups of frames 17 is fixed with a discharge hopper 18, and the two groups of discharge hoppers 18 are each hinged with two groups of hinged arms 181, the lower end of each hinged arm 181 is welded with a clamping arm 182, and a hydraulic rod 183 is installed between the two groups of hinged arms 181 on the discharge hopper 18, which functions as follows: by the extension and retraction of the hydraulic rod 183, the hinged arms 181 are pushed to rotate around the hinge point, and in turn the clamping arms 182 tightly clamp the receiving container, ensuring the safety and stability of the discharging process, avoiding material spilling, and maintaining a clean working environment.

[0044] In example three, on the basis of example one and example two,

[0045] The right side of the first support frame 1 is installed with a storage hopper 2, the lower end of which is fixed with two groups of support legs 21, the upper end of which is fixed with a filling hopper 22, and the left end of which is fixed with a material conveying channel 23, the inside of which is installed with a spiral conveying roller 231 through a bearing, the second support frame 25 is fixed on the material conveying channel 23, and the left end of the material conveying channel 23 is fixed with a connection box 24, the lower end of which is connected with the upper end of the feeding hopper 141, the connection box 24 is hinged with an inspection plate 241, and the left end of the connection box 24 is installed with a gearbox 242 through bolts, the output shaft of the gearbox 242 is connected with the left end of the spiral conveying roller 231, and the second motor 243 is installed on the gearbox 242 through bolts, which functions as follows: the second motor 243 is installed on the gearbox 242, which drives the spiral conveying roller 231 to rotate after adjusting the speed through the gearbox 242, and the sand in the storage hopper 2 is smoothly conveyed to the feeding hopper 141, and the inspection plate 241 hinged on the connection box 24 is convenient for workers to open and check, maintain and repair the internal connecting parts and the spiral conveying roller 231.

[0046] The working principle of the embodiment is as follows: the sand to be screened is poured into the storage hopper 2 through the filling hopper 22 at the upper end of the storage hopper 2, the second motor 243 is started, the second motor 243 is installed on the gearbox 242, the power is transmitted to the spiral conveying roller 231 after the speed is adjusted by the gearbox 242, the spiral conveying roller 231 rotates in the conveying channel 23, and the sand in the storage hopper 2 is conveyed to the connecting box 24, and then enters the feeding hopper 141 through the connecting box 24, the feeding hopper 141 is fixed on the top frame 14, and the top frame 14 is fixed on the first support frame 1, and the lower end of the feeding hopper 141 is located inside the rear side of the screen cylinder 121, so that the sand can accurately fall into the screen cylinder 121, after the first motor 132 is started, the rotating frame 12 is driven to rotate through the shaft sleeve, the screen cylinder 121 is fixed on the rotating frame 12 and rotates with the rotating frame 12, the rear of the screen cylinder 121 is higher than the front, and the sand moves from the rear end to the front end of the screen cylinder 121 under the action of rotation and gravity, in the moving process, the fine sand falls into the first discharge hopper 15 below through the screen of the screen cylinder 121, and the coarse sand continues to move and falls into the second discharge hopper 16 from the front end of the screen cylinder 121, the rotating handle 174 is rotated to control the opening and closing of the opening and closing plate 172, accurate discharging is realized, the discharged material falls into the discharge hopper 18, the discharge hopper 18 is fixed at the lower end of the frame 17, when the receiving container is placed below the discharge hopper 18, the hydraulic rod 183 pushes the hinged arm 181 to rotate around the hinge point, and the clamping arm 182 welded at the lower end of the hinged arm 181 clamps the container, so that the discharging process is safe and stable, and the material is smoothly collected into the receiving container.

[0047] In this paper, the following points need attention:

[0048] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0049] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0050] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present disclosure, which should be covered within the protection scope of the present disclosure.

Claims

1. A sand sifting device comprising: The utility model provides a sand screening device, including first support frame (1), the bottom of first support frame (1) is welded with bottom hopper (11), and the bearing is installed with rotary frame (12) on bottom hopper (11), and the fixed sieve cylinder (121) of rotary frame (12), the lower end of bottom hopper (11) is provided with no.

2. The sand screening device according to claim 1, wherein, The rear end of the first support frame (1) is welded with a welding frame (13), the welding frame (13) is installed with a motor seat (131), the motor seat (131) is installed with a first motor (132), and the output shaft of the first motor (132) is connected with the rear end of the rotary frame (12) through a shaft sleeve.

3. The sand screening device according to claim 2, wherein, The first support frame (1) is fixed with a top frame (14), the top frame (14) is fixed with a feeding hopper (141), the lower end of the feeding hopper (141) is located inside the rear side of the sieve cylinder (121), and the height behind the sieve cylinder (121) is higher than the height in front of the sieve cylinder (121).

4. The sand screening device according to claim 1, wherein, The lower end of each of the two sets of frame (17) is fixed with a discharge hopper (18), each of the two sets of discharge hopper (18) is hinged with two sets of hinge arms (181), the lower end of the hinge arm (181) is welded with a clamping arm (182), and a hydraulic rod (183) is installed between the two sets of hinge arms (181) on the discharge hopper (18).

5. The sand screening device according to claim 1, wherein, The right side of the first support frame (1) is installed with a storage hopper (2), the lower end of the storage hopper (2) is fixed with two sets of support legs (21), the upper end of the storage hopper (2) is fixed with a filling hopper (22), and the left end of the storage hopper (2) is fixed with a conveying channel (23).

6. The sand screening device according to claim 5, wherein, The inside of the conveying channel (23) is installed with a spiral conveying roller (231) through a bearing, the conveying channel (23) is fixed with a second support frame (25), and the left end of the conveying channel (23) is fixed with a connection box (24), and the lower end of the connection box (24) is connected with the upper end of the feeding hopper (141).

7. The sand screening device according to claim 6, wherein, ​ The connecting box (24) is hinged with an inspection plate (241), the left end of the connecting box (24) is provided with a gearbox (242), the output shaft of the gearbox (242) is connected with the left end of the spiral conveying roller (231), and the gearbox (242) is provided with a second motor (243).

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