CN109013299A - Sand screening machine that building site used - Google Patents

Abstract

The invention discloses a sand screening machine for a construction site, which comprises a base, wherein the top of the base is symmetrically and fixedly connected with two support columns, cavities are formed in the two support columns, sliding plates are connected in the cavities in a sliding mode, the tops of the sliding plates are fixedly connected with connecting plates, the tops of the connecting plates penetrate through the tops of the cavities and extend outwards, one of the cavities is connected with the outer side wall of the connecting plate through a vibrating mechanism, a motor is arranged in the other cavity, the output end of the motor is fixedly connected with a cam, and the tops of the two connecting plates are connected through a vibrating screen frame. The motor drives the cam to rotate, the cam rotates to push the connecting plate, the spring on the outer side wall of the other connecting plate compresses and stretches, the vibrating screen frame swings back and forth, the screen plate is arranged in the vibrating screen frame, so that sand is screened efficiently, the roller wheels are arranged on the base, the sand screening machine is convenient to move, and meanwhile, the threaded rod and the fixing block are arranged, so that the sand screening machine can be stabilized.

Description

Sand sieving machine for construction site

technical field

The invention relates to the technical field of construction engineering, in particular to a sand screening machine for a construction site.

Background technique

Sand is often used in construction projects, and the mixing of cement usually requires fine sand when building a house. Due to the different particle sizes of sand, it is easy to affect the flatness of the wall during the wall building process, so it needs to be adjusted before use. The sand is screened to ensure that the size of the sand meets the requirements of use. At present, the sand screening method is mainly manual screening, which not only wastes manpower and material resources, but also cannot last for a long time during manual sand screening. slow.

Contents of the invention

The purpose of the present invention is to solve the problem of inability to efficiently screen sand in the prior art, and propose a sand screening machine for construction sites.

In order to achieve the above object, the present invention adopts the following technical solutions:

A sand screening machine for a construction site, comprising a base, two support columns are symmetrically fixedly connected to the top of the base, cavities are provided in the two support columns, sliding plates are slidably connected in the cavities , the tops of the sliding plates are fixedly connected with connecting plates, the tops of the connecting plates penetrate through the top of the cavity and extend outwards, one of the cavities is connected with the outer side wall of the connecting plate through a vibration mechanism, and the supporting column A motor is fixedly connected to the outer wall, and the output end of the motor is fixedly connected to a rotating shaft. The end of the rotating shaft away from the motor penetrates the support column and extends into the cavity. The end of the rotating shaft far away from the motor is fixedly sleeved with a cam. The tops of the two connecting plates are fixedly connected by the vibrating screen frame, the vibrating screen frame is provided with a screen plate, the vibrating screen frame is provided with a chute corresponding to the screen plate, and the two supporting columns are opposite to each other. A funnel is fixedly connected to one side, a plurality of universal wheels are fixedly connected to the bottom of the base, and a fixing mechanism is screwed to the bottom of the base.

Preferably, the vibrating mechanism includes a plurality of sliding rods fixedly connected to the outer wall of the connecting plate, one end of the sliding rod away from the connecting plate penetrates the inner wall of the cavity and extends outward, and the outer wall of the sliding rod is sleeved There is a spring, one end of the spring is fixedly connected to the outer wall of the connecting plate, the end of the spring away from the connecting plate is fixedly connected to the inner wall of the cavity, and the end of the slide bar away from the connecting plate is fixedly connected to the limiting plate.

Preferably, a plurality of screws are threadedly connected to the top outer walls of the two connecting plates, one end of the screws penetrates the connecting plates and extends toward the outer wall of the vibrating screen frame, and the outer wall of the vibrating screen frame is provided with a screw corresponding to the screw. The first thread groove.

Preferably, the outer wall of the vibrating screen frame is connected with a filter baffle by a plurality of screws, the outer wall of the vibrating screen frame is provided with a baffle groove corresponding to the filter baffle, and the inner wall of the baffle groove is A second thread groove corresponding to the screw is provided.

Preferably, an opening is provided at the top of the cavity, and a plurality of rubber blocks are fixedly connected to the side wall of the opening.

Preferably, the fixing mechanism includes a plurality of threaded rods threadedly connected to the base, the bottom of the threaded rods runs through the base and extends downwards, the top of the threaded rods is fixedly connected with a handle, and the bottom of the threaded rods is fixedly connected with Fixed block.

The beneficial effects of the present invention are:

1. The motor drives the cam to rotate. As the cam rotates to push the connecting plate, the spring on the outer wall of the other connecting plate is compressed and stretched, making the vibrating screen frame swing back and forth. There is a screen plate in the vibrating screen frame, so that the screen plate Follow the vibrating screen frame to swing back and forth, so as to screen sand efficiently;

2. In the sand screening process for many times, due to the load bearing, the screen plate will be squeezed and deformed. At the same time, sand and stones will block the mesh. The filter screen baffle is installed to make the screen plate easy to replace.

Description of drawings

Fig. 1 is the front structure schematic diagram of a kind of construction site sand screening machine that the present invention proposes;

Fig. 2 is the structural schematic diagram that the vibrating screen frame of the sand screening machine that a kind of construction site that the present invention proposes is connected with the screen plate;

Fig. 3 is a structural schematic diagram of a motor connection of a sand screening machine for a construction site proposed by the present invention.

In the figure: 1 base, 2 supporting columns, 3 cavity, 4 sliding plate, 5 connecting plate, 6 cam, 7 vibrating screen frame, 8 screen plate, 9 funnel, 10 sliding rod, 11 spring, 12 screen baffle , 13 threaded rods.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Referring to Fig. 1-3, a sand screening machine for a construction site includes a base 1, and two support columns 2 are symmetrically and fixedly connected to the top of the base 1, and a cavity 3 is provided in the two support columns 2, and inside the cavity 3 The sliding plate 4 is slidably connected, and the top of the sliding plate 4 is fixedly connected with the connecting plate 5. The top of the connecting plate 5 runs through the inner top of the cavity 3 and extends outward. One of the cavities 3 is connected to the outer wall of the connecting plate 5 through a vibration mechanism. Connected, the vibrating mechanism includes a plurality of sliding rods 10 fixedly connected on the outer wall of the connecting plate 5, the end of the sliding rod 10 away from the connecting plate 5 penetrates the inner wall of the cavity 3 and extends outward, and the outer wall of the sliding rod 10 is sleeved with A spring 11, one end of the spring 11 is fixedly connected to the outer wall of the connecting plate 5.

Wherein, one end of the spring 11 away from the connection plate 5 is fixedly connected to the inner wall of the cavity 3, and one end of the slide bar 10 away from the connection plate 5 is fixedly connected to the limit plate, and the spring 11 has elastic characteristics, so that the vibrating screen frame 7 swings back and forth , so as to effectively screen sand, the outer wall of the support column 2 is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating shaft, and the end of the rotating shaft away from the motor runs through the support column 2 and extends into the cavity 3, and the top of the cavity 3 is provided There is an opening, and a plurality of rubber blocks are fixedly connected on the side wall of the opening to play a buffering effect. The end of the rotating shaft away from the motor is fixedly sleeved with a cam 6, and the tops of the two connecting plates 5 are fixedly connected through the vibrating screen frame 7. A plurality of screws are threaded on the outer wall of the top of the plate 5, and one end of the screw runs through the connecting plate 5 and extends to the outer wall of the vibrating screen frame 7. The outer wall of the vibrating screen frame 7 is provided with a first thread groove corresponding to the screw, which is convenient for disassembly. The vibrating screen frame 7 is cleaned and the screen plate 8 is replaced, and the vibrating screen frame 7 is provided with a screen plate 8 .

Wherein, the vibrating screen frame 7 is provided with a chute corresponding to the screen plate 8, the outer wall of the vibrating screen frame 7 is connected with a filter screen baffle 12 by a plurality of screws, and the outer wall of the vibrating screen frame 7 is provided with a filter screen baffle. The baffle groove corresponding to the plate 12, the inner side wall of the baffle groove is provided with the second thread groove corresponding to the screw, which is convenient for replacing the screen plate 8, and prevents the screen plate 8 from falling when vibrating. The two support columns 2 are opposite One side is fixedly connected with a funnel 9, and the bottom of the base 1 is fixedly connected with a plurality of universal wheels. The mechanism includes a plurality of threaded rods 13 threaded on the base 1. The bottom of the threaded rods 13 runs through the base 1 and extends downward. Stabilize the sand sieving machine when sanding.

In the present invention, when preparing to sieve sand, the threaded rod 13 is turned by the handle so that the fixed block moves downward and touches the ground, the motor is turned on, and the cam 6 is driven to rotate by the motor. Since the cam 6 is irregular, the cam 6 is against the connecting plate when rotating 5 outer wall and push connecting plate 5, another connecting plate 5 outer wall is fixedly connected with slide bar 10, and the outer wall of slide bar 10 is provided with spring 11, the two ends of spring 11 are connected with connecting plate 5 outer wall and cavity 3 The inner side walls are offset, and when the cam 6 rotates to one end with a large radius, it pushes the connecting plate 5 to move, and a part of the kinetic energy is converted into the potential energy of the spring 11. When the cam 6 rotates to a small radius, the potential energy of the spring 11 will be converted into the kinetic energy of the connecting plate 5 , so that the connecting plate 5 reciprocates, so that the vibrating screen frame 7 shakes back and forth, which is convenient for shaking and filtering the sand and stones on the screen plate 8 when shaking. Clean up, and can open the filter screen baffle plate 12 to replace the filter screen plate 8 by unscrewing the screw.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (6)

1. A sand screening machine used on a construction site, comprising a base (1), characterized in that, the top of the base (1) is symmetrically fixedly connected with two support columns (2), and the two support columns (2) There are cavities (3) inside, and sliding plates (4) are slidably connected in the cavities (3), and the tops of the sliding plates (4) are fixedly connected with connecting plates (5), and the connecting plates (5) The top runs through the top of the cavity (3) and extends outward, one of the cavities (3) is connected to the outer side wall of the connecting plate (5) through a vibration mechanism, and the outer side wall of the support column (2) A motor is fixedly connected to the top, and the output end of the motor is fixedly connected to a rotating shaft. The end of the rotating shaft away from the motor runs through the support column (2) and extends into the cavity (3), and the end of the rotating shaft far away from the motor is fixedly socketed. There is a cam (6), and the tops of the two connecting plates (5) are fixedly connected through the vibrating screen frame (7), and the vibrating screen frame (7) is provided with a screen plate (8), and the vibrating screen frame ( 7) A chute corresponding to the screen plate (8) is provided inside, a funnel (9) is fixedly connected to the opposite side of the two support columns (2), and a plurality of funnels (9) are fixedly connected to the bottom of the base (1). Universal wheels, the bottom of the base (1) is threadedly connected with a fixing mechanism. 2. The sand screening machine for a construction site according to claim 1, wherein the vibrating mechanism includes a plurality of slide bars (10) fixedly connected to the outer sidewall of the connecting plate (5), the One end of the slide bar (10) away from the connecting plate (5) penetrates the inner wall of the cavity (3) and extends outward, and the outer wall of the slide bar (10) is sleeved with a spring (11), and the spring (11) One end of the spring (11) is fixedly connected to the outer wall of the connecting plate (5), the end of the spring (11) away from the connecting plate (5) is fixedly connected to the inner wall of the cavity (3), and the slide bar (10) is far away from the connecting plate One end of (5) is fixedly connected with the limiting plate. 3. The sand screening machine for a construction site according to claim 1, wherein a plurality of screws are threaded on the outer side walls of the tops of the two connecting plates (5), and one end of the screws runs through the connecting plates (5) and extend to the outer wall of the vibrating screen frame (7), and the outer wall of the vibrating screen frame (7) is provided with a first screw groove corresponding to the screw. 4. The sand screening machine for a construction site according to claim 1, characterized in that, the outer wall of the vibrating screen frame (7) is connected with a filter screen baffle (12) by a plurality of screws, and the vibrating screen A baffle slot corresponding to the screen baffle (12) is provided on the outer side wall of the screen frame (7), and a second threaded slot corresponding to the screw is provided on the inner side wall of the baffle slot. 5. A sand screening machine for a construction site according to claim 1, characterized in that an opening is provided at the top of the cavity (3), and a plurality of rubber blocks are fixedly connected to the side wall of the opening. 6. The sand screening machine for a construction site according to claim 1, wherein said fixing mechanism comprises a plurality of threaded rods (13) threaded on the base (1), said threaded rods ( The bottom of 13) runs through the base (1) and extends downward, the top of the threaded rod (13) is fixedly connected with a handle, and the bottom of the threaded rod (13) is fixedly connected with a pointed tip.