CN111451124A

CN111451124A - Gravel and sand screening machine

Info

Publication number: CN111451124A
Application number: CN202010300046.0A
Authority: CN
Inventors: 马海艳; 王燕; 谈剑锋
Original assignee: Nanning University
Current assignee: Nanning University
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-07-28

Abstract

The invention discloses a sand and stone screening machine which comprises a motor A, a gear A, a screening cylinder, a sand hopper, a motor B, a gear B and a support, wherein rollers are arranged at two ends of the screening cylinder, the gear B is arranged at the left end of the screening cylinder, the right end of the screening cylinder is connected with the sand hopper, the gear A is arranged on an output shaft of the motor A, the gear A is matched with the gear B, the rollers are connected with the support, the screening cylinder consists of a sand bucket and a squeezing plate, the sand bucket is provided with a plurality of rectangular notches, a sand shoveling plate is arranged outside the sand bucket and in a position corresponding to one side of the notch, sand separating plates are arranged in the sand bucket and in positions corresponding to two sides of the notch, a screen is arranged at the bottom end of each sand separating plate at intervals, the screen does not correspond to the notches, the squeezing plate is arranged in the screen, and the motor B is. The sand shoveling device can automatically shovel sand into the screen, and when the sand is wetted by rain, the wetted sand can be squeezed into the screen, so that the screening effect is ensured, and the manual labor is reduced.

Description

Gravel and sand screening machine

Technical Field

The invention belongs to the field of engineering construction facilities, and relates to a sand and stone screening machine.

Background

Sand is an indispensable material for building engineering, is mixed with lime or cement and then is used for building bricks, and in order to enable the bricks to be better attached, stones contained in the sand need to be screened out. In the screening, the screening is often carried out by manually shoveling sand into a screening device, and the manual shoveling sand is heavy physical activity and consumes large physical power. When the sand is wetted by rain, the weight is increased, and the wetted sand is agglomerated and is not easy to pass through a screen, and stones in the sand cannot be screened out.

Disclosure of Invention

In order to solve the technical problem, the invention provides a gravel screening machine.

The invention is realized by the following technical scheme.

The invention provides a sand and stone screening machine which comprises a motor A, a gear A, a screening cylinder, a sand hopper, a motor B, a gear B and a support, wherein rollers are arranged at two ends of the screening cylinder, the gear B is arranged at the left end of the screening cylinder, the right end of the screening cylinder is connected with the sand hopper, the gear A is arranged on an output shaft of the motor A, the gear A is matched with the gear B, the rollers are connected with the support, the screening cylinder comprises a sand bucket and a squeezing plate, the sand bucket is provided with a plurality of rectangular notches, a sand shoveling plate is arranged outside the sand bucket and in a position corresponding to one side of the notch, sand separating plates are arranged in the sand bucket and in positions corresponding to two sides of the notch, a screen is arranged at the bottom end of each sand separating plate at intervals, the screen does not correspond to the notches, the squeezing plate is arranged in the screen, and the motor B is connected with the squeezing.

The outlet of the sand hopper is provided with a sand baffle which is horn-shaped, and the horn mouth faces the sand hopper.

The section of shovel husky board is circular-arc, and the inner arc is towards the breach, and the both ends and the gyro wheel lateral wall of shovel husky board are connected.

The support comprises base and the small roller of installing on the base, small roller and gyro wheel contact.

The rotating shaft of the motor B is arranged on the screening cylinder through a sliding bearing.

The screen is formed by coiling an arc of a rectangular reticular plate, and the diameter of the arc of the screen 35 is matched with the width of the extrusion plate.

The extrusion plate is flat, and the two ends of the extrusion plate are provided with bristles which are in contact with the screen.

The invention has the beneficial effects that: the sand shoveling device can automatically shovel sand into the screen, and when the sand is wetted by rain, the wetted sand can be squeezed into the screen, so that the screening effect is ensured, and the manual labor is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional structure of the present invention.

In the figure: 1-motor A, 2-gear A, 3-screening cylinder, 31-roller, 32-sand bucket, 33-sand shoveling plate, 34-sand separating plate, 35-screen, 36-squeezing plate, 4-sand hopper, 5-motor B, 6-gear B, 7-support, 71-base and 72-small roller.

Detailed Description

The technical solution of the present invention is further described below with reference to the accompanying drawings, but the scope of the claimed invention is not limited thereto.

As shown in fig. 1 and 2, the sand and stone screening machine comprises a motor a1, a gear a2, a screening cylinder 3, a sand hopper 4, a motor B5, a gear B6 and a support 7, wherein rollers 31 are arranged at two ends of the screening cylinder 3, the left end of the screening cylinder 3 is provided with a gear B6, the right end is connected with the sand hopper 4, the output shaft of the motor A1 is provided with a gear A2, the gear A2 is matched with a gear B6, the roller 31 is connected with the support 7, the screening drum 3 is composed of a sand bucket 32 and an extrusion plate 36, the sand bucket 32 is provided with a plurality of rectangular gaps, a sand shoveling plate 33 is arranged at the position corresponding to one side of the gap outside the sand bucket 32, and the sand shoveling plate is arranged inside the sand bucket 32, the positions corresponding to the two sides of the gap are provided with sand-separating plates 34, the bottom ends of the sand-separating plates 34 are provided with screens 35 at intervals, and the screen 35 does not correspond to the notch, the squeezing plate 36 is arranged in the screen 35, and the motor B5 is connected with the squeezing plate 36 through a rotating shaft.

The outlet of the sand hopper 4 is provided with a sand baffle 41, the sand baffle 41 is horn-shaped, and the horn mouth faces the sand hopper 41. So that the sand guard 41 can catch the sand thrown from the sand hopper 4.

The cross section of the sand shoveling plate 33 is arc-shaped, the inner arc faces to the notch, and two ends of the sand shoveling plate 33 are connected with the side wall of the roller 31. The arc-shaped cross section enables the sand shoveling plate 33 to have the functions of shoveling sand and surrounding sand, so that the sand can fall between the sand separating plates 34 better. The sand shoveling plate 33 is connected to the side wall of the roller 31, so that sand does not leak from the end of the sand shoveling plate 33.

The support 7 is composed of a base 71 and a small roller 72 installed on the base 71, and the small roller 72 is in contact with the roller 31. The small roller is fixed on the base 71 by a bearing, and the small roller can not only support the roller 31, but also can not obstruct the rolling of the roller 31.

The rotating shaft of the motor B5 is mounted on the sieving cylinder 3 through a sliding bearing. Because the rotating shaft of the motor B5 is connected with the extrusion plate 36, the extrusion plate 36 can rotate freely on the sieving cylinder 3.

The screen 35 is formed by coiling an arc of a rectangular reticular plate, and the diameter of the arc of the screen 35 is matched with the width of the extrusion plate 36. So that the pressing plate 36 can rotate within the screen 35 after being mounted.

The squeezing plate 36 is a flat plate, and bristles are provided at both ends of the squeezing plate 36, and are in contact with the mesh 35. To clean the screen 35 with bristles to reduce clogging of sand on the mesh.

The sand separating plate 34 and the screen 35 form a space A which is communicated with the sand hopper 4, and the space B formed by the sand separating plate 34 and two sides of the notch is not communicated with the sand hopper 4. So that the sand coming from the gap can not enter the sand hopper 4, and the screened sand can enter the sand hopper 4 from the blank space A.

When the screening cylinder 3 is used, the screening cylinder rotates, the inner arc of the sand shoveling plate 33 rotates upwards during self-transmission, and the sand shoveling plate 33 can shovel sand on a sand pile. Under the action of the gravity of the sand, the sand falls from the gap into the space B and into the screen 35. In the rotation of stripper plate 36, sand is extruded and passes through screen cloth 35, falls into blank A in, no matter whether sand is drenched by the rain, all can sieve through the screen cloth under stripper plate 36's promotion, has effectively guaranteed the screening effect. Because the blank A is communicated with the sand hopper 4, the screened sand can be thrown into the sand hopper 4 under the action of centrifugal force and fall to the sand baffle.

Claims

1. A gravel and sand screening machine which characterized in that: the screening machine comprises a motor A (1), a gear A (2), a screening cylinder (3), a sand hopper (4), a motor B (5), a gear B (6) and a support (7), wherein rollers (31) are arranged at two ends of the screening cylinder (3), the gear B (6) is arranged at the left end of the screening cylinder (3), the right end of the screening cylinder is connected with the sand hopper (4), the gear A (2) is arranged at an output shaft of the motor A (1), the gear A (2) is matched with the gear B (6), the rollers (31) are connected with the support (7), the screening cylinder (3) consists of a sand barrel (32) and an extrusion plate (36), the sand barrel (32) is provided with a plurality of rectangular gaps, a sand shoveling plate (33) is arranged outside the sand barrel (32) and in a position corresponding to one side of the gap, sand separating plates (34) are arranged in the sand barrel (32) and in positions corresponding to two sides of the gaps, and a screen (35) is arranged at intervals at the bottom ends of the sand separating plates (34, the screen (35) does not correspond to the notch, the extrusion plate (36) is arranged in the screen (35), and the motor B (5) is connected with the extrusion plate (36) through a rotating shaft.

2. The sandstone screening machine of claim 1, wherein: the sand hopper (4) is characterized in that a sand blocking plate (41) is arranged at the outlet of the sand hopper (4), the sand blocking plate (41) is horn-shaped, and the horn mouth faces the sand hopper (41).

3. The sandstone screening machine of claim 1, wherein: the section of shovel husky board (33) is circular-arc, and the inner arc is towards the breach, and the both ends and gyro wheel (31) lateral wall of shovel husky board (33) are connected.

4. The sandstone screening machine of claim 1, wherein: the support (7) consists of a base (71) and a small roller (72) arranged on the base (71), and is in contact with the small roller (72) and the roller (31).

5. The sandstone screening machine of claim 1, wherein: the rotating shaft of the motor B (5) is arranged on the screening cylinder (3) through a sliding bearing.

6. The sandstone screening machine of claim 1, wherein: the screen (35) is formed by coiling an arc of a rectangular reticular plate, and the diameter of the arc of the screen (35) is adaptive to the width of the extrusion plate (36).

7. The sandstone screening machine of claim 1, wherein: the extrusion plate (36) is flat, and bristles are arranged at two ends of the extrusion plate (36) and are in contact with the screen (35).

8. The sandstone screening machine of claim 1, wherein: the sand separating plate (34) is communicated with the sand hopper (4) through a space A formed by surrounding the screen (35), and the sand separating plate (34) is not communicated with the sand hopper (4) through a space B formed by surrounding the sand separating plate and two sides of the notch.