Multi-stage screening device for building aggregate

Abstract

The invention discloses a building aggregate multistage screening device which comprises a mounting frame assembly, two screening assemblies and a turnover assembly, the two screening assemblies are both arranged on the mounting frame assembly and used for rotating and pulling to conduct shaking screening, the two screening assemblies are oppositely arranged, and the turnover assembly is arranged on the mounting frame assembly. The overturning assembly is arranged in the mounting frame assembly and used for overturning, dumping and screening out aggregate, the screening assembly comprises a vertical plate, a rotating rod, an eccentric wheel, a first motor, a connecting cable, a supporting wheel and a pulley, the vertical plate is arranged on the mounting frame assembly, the rotating rod is rotationally mounted on the vertical plate, the eccentric wheel is fixedly mounted at one end of the rotating rod, and the supporting wheel is fixedly mounted at the other end of the rotating rod. The first motor is arranged on the mounting frame assembly, and an output shaft of the first motor is fixedly connected with one end of the rotating rod. The multi-stage screening device for the building aggregate has the advantages that shaking is generated through left-right back-and-forth pulling, the aggregate is shaken and screened, and the situation that the screening effect is affected due to blockage of large-particle materials is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of building aggregates, and in particular to a multi-stage screening device for building aggregates. Background Art

[0002] Also known as "aggregate." This refers to the granular material that provides a framework and filler in concrete and mortar. There are two types of aggregate: fine aggregate and coarse aggregate. Fine aggregate has a particle diameter between 0.16 and 5 mm. Natural sand, such as river sand, sea sand, and mountain valley sand, is generally used. When natural sand is scarce, artificial sand made from crushed hard rock can also be used. Coarse aggregate has a particle diameter greater than 5 mm, and commonly used materials include crushed stone and pebbles. Under the same conditions, crushed stone concrete has higher strength than pebble concrete, but crushed stone is made from crushed rock and is more expensive than pebbles. Common coarse aggregates used in lightweight aggregate concrete include natural porous rocks such as pumice and artificial porous aggregates such as ceramsite and expanded slag. Aggregate, as the primary raw material in concrete, provides the framework and support for buildings.

[0003] However, no matter it is coarse aggregate or fine aggregate, there will be too large or too small aggregates mixed in the aggregate. In order to ensure the quality of concrete, the aggregate needs to be screened before it is used in concrete. The aggregate screening machines on the market move the aggregate from top to bottom and screen it with a screen. After the screen screens out the small particles of aggregate, the large particles of aggregate will block the mesh, and the aggregate above the large particles of aggregate is difficult to move through the screen for screening, which makes the screening effect of the aggregate poor. Summary of the Invention The purpose of the present invention is to provide a multi-stage screening device for building aggregates, which has the advantages of shaking by pulling back and forth, shaking and screening the aggregates, and preventing large particles of materials from clogging and affecting the screening effect, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-stage screening device for building aggregates, comprising a mounting frame assembly, two screening assemblies and a flipping assembly, wherein the two screening assemblies are arranged on the mounting frame assembly for rotating, pulling and shaking screening, the two screening assemblies are arranged in opposite directions, and the flipping assembly is arranged in the mounting frame assembly for flipping and dumping the screened aggregates.

[0005] Furthermore, the screening assembly includes a vertical plate, a rotating rod, an eccentric wheel, a motor 1, a connecting cable, a support wheel and a pulley, the vertical plate is arranged on the mounting frame assembly, the rotating rod is rotatably mounted on the vertical plate, the eccentric wheel is fixedly mounted on one end of the rotating rod, the motor 1 is arranged on the mounting frame assembly, the output shaft of the motor 1 is fixedly connected to one end of the rotating rod, the connecting cable is arranged on the eccentric wheel, the support wheel is fixedly mounted on the mounting frame assembly, the connecting cable is slidably connected to the support wheel, the pulley is fixedly mounted on the mounting frame assembly, and the connecting cable is slidably connected to the pulley.

[0006] Furthermore, the connecting rope is formed by twisting multiple strands of steel wires interwoven with each other.

[0007] Furthermore, the mounting frame assembly includes a base plate, four support plates and a mounting frame, the four support plates are fixedly mounted on the top of the base plate, the mounting frame is fixedly mounted on the top of the four support plates, the vertical plate is fixedly mounted on the top of the base plate, the motor is fixedly mounted on the top of the base plate, the support wheel is fixedly mounted on one side outer wall of the mounting frame, and the pulley is fixedly mounted on the top of the mounting frame.

[0008] Furthermore, the flip assembly includes a circular frame, two cylinders, two connecting rods, two screen buckets, two screen meshes, a second motor, a first pulley and a second pulley. The circular frame is arranged in the installation frame. The two cylinders are fixedly installed on the outer wall of the circular frame. The two cylinders are rotatably connected to the installation frame. The two connecting rods are rotatably installed on the circular frame. The two screen buckets are arranged in the circular frame. The corresponding screen buckets are fixedly connected to the two connecting rods. The two screen meshes are respectively fixedly installed in the two screen buckets. The second motor is fixedly installed on one side outer wall of the corresponding screen bucket, driving the first pulley to be fixedly installed on the output shaft of the second motor. The second pulley is fixedly sleeved on the corresponding connecting rod. The circular frame is fixedly connected to the connecting rope.

[0009] Furthermore, two adjustment plates are hingedly mounted on the outer walls of the two sieve buckets, and the two adjustment plates are arranged in pairs.

[0010] Furthermore, a transmission belt is rotatably sleeved on the first pulley, and the second pulley is rotatably connected to the transmission belt.

[0011] Furthermore, a driven rod is rotatably mounted on the eccentric wheel, a circular plate is fixedly mounted on one end of the driven rod, and the circular plate is fixedly connected to the connecting rope.

[0012] Furthermore, a partition is provided on the periphery of the connecting cable, and a limit frame is fixedly installed on the outer walls on both sides of the partition, and the limit frame is adapted to the connecting cable.

[0013] In summary, due to the adoption of the above technology, the beneficial effects of the present invention are: The present invention sets a screening component and starts two motors. Both motors rotate clockwise, and motor one drives the rotating rod to rotate, and the rotating rod drives the eccentric wheel to rotate. The connection between the connecting rope and the eccentric wheel performs circular motion, and the eccentric wheel stretches the connecting rope when it rotates. Because the two motors are in opposite directions, the deflection wheels on both sides stretch the connecting rope in opposite directions. For example, the eccentric wheel on the left rotates and drives the connecting rope to rotate downward, pulling the connecting rope, and the eccentric wheel on the right drives the connecting rope to rotate upward, stretching the connecting rope. Through the mutual cooperation of the support wheel and the sliding, the connecting rope is separated from the sharp corners of foreign objects when it is stretched and moved, avoiding damage caused by friction, and moving more smoothly when stretched. It has the advantages of shaking by pulling back and forth left and right, shaking and screening the aggregate, and preventing large particles of material from being blocked and affecting the screening effect.

[0014] The present invention sets a turning component to start motor 2, which drives pulley 1 to rotate, and pulley 1 drives pulley 2 to rotate through a transmission belt, and pulley 2 drives a connecting rod to rotate, and the connecting rod rotates on a circular frame, and the connecting rod drives the screen bucket to turn over, so that the opening of the screen bucket rotates downward, and the downward turning of the screen bucket causes the screened aggregate to pour out downward, which has the advantages of screening the aggregate and turning over and pouring the screened aggregate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a multi-stage screening device for building aggregates according to the present invention; Figure 2 This is a schematic diagram of the main cross-sectional structure of a multi-stage screening device for building aggregates according to the present invention; Figure 3 This is a schematic side cross-sectional view of a multi-stage screening device for building aggregates according to the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A; Figure 5 Schematic diagram of the assembly structure of the screening component in the present invention; Figure 6 Schematic diagram of the assembly structure of the partition plate and the limit frame in the present invention; Figure 7 It is a schematic diagram of the assembly structure of the flip assembly in the present invention.

[0016] In the figure: 1. Mounting frame assembly; 101. Bottom plate; 102. Support plate; 103. Mounting frame; 2. Screening assembly; 201. Vertical plate; 202. Rotating rod; 203. Eccentric wheel; 204. Motor 1; 205. Connecting rope; 206. Support wheel; 207. Pulley; 3. Flipping assembly; 301. Reciprocating frame; 302. Cylinder; 303. Connecting rod; 304. Screen bucket; 305. Screen; 306. Motor 2; 307. Pulley 1; 308. Pulley 2; 4. Driven rod; 5. Circular plate; 6. Partition; 7. Limit frame. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] The present invention provides Figure 1-Figure 7 As shown, a multi-stage screening device for building aggregates includes a mounting frame assembly 1, two screening assemblies 2 and a flipping assembly 3. The two screening assemblies 2 are arranged on the mounting frame assembly 1 for rotating, pulling and shaking to screen. The two screening assemblies 2 are arranged in opposite directions. The flipping assembly 3 is arranged in the mounting frame assembly 1 for flipping and dumping the screened aggregates.

[0019] In addition, the screening assembly 2 includes a vertical plate 201, a rotating rod 202, an eccentric wheel 203, a motor 204, a connecting cable 205, a support wheel 206 and a pulley 207. The vertical plate 201 is arranged on the mounting frame assembly 1, the rotating rod 202 is rotatably mounted on the vertical plate 201, the eccentric wheel 203 is fixedly mounted on one end of the rotating rod 202, the motor 204 is arranged on the mounting frame assembly 1, the output shaft of the motor 204 is fixedly connected to one end of the rotating rod 202, the connecting cable 205 is arranged on the eccentric wheel 203, the support wheel 206 is fixedly mounted on the mounting frame assembly 1, the connecting cable 205 is slidably connected to the support wheel 206, the pulley 207 is fixedly mounted on the mounting frame assembly 1, and the connecting cable 205 is slidably connected to the pulley 207. More specifically, when the two motors 204 are started, the two motors 204 both rotate clockwise, and the motor 2 04 drives the rotating rod 202 to rotate, and the rotating rod 202 drives the eccentric wheel 203 to rotate, and the connection between the connecting rope 205 and the eccentric wheel 203 performs a circular motion. When the eccentric wheel 203 rotates, the connecting rope 205 is stretched. Because the directions of the two motors 204 are opposite, the deflection wheels 203 on both sides stretch the connecting rope 205 in opposite directions. For example, the eccentric wheel 203 on the left rotates and drives the connecting rope 205 to rotate downward, pulling the connecting rope 205, and the eccentric wheel 203 on the right drives the connecting rope 205 to rotate upward, stretching the connecting rope 205. Through the cooperation of the support wheel 206 and the sliding 207, the connecting rope 205 is separated from the sharp corners of foreign objects when it is stretched and moved, avoiding damage caused by friction, and increasing the movement during stretching. It has the advantages of shaking by pulling back and forth left and right, shaking and screening the aggregate, and preventing large particles of material from being blocked and affecting the screening effect.

[0020] In addition, the connecting rope 205 is formed by twisting multiple strands of steel wires interwoven with each other.

[0021] like Figure 1 As shown, in some embodiments, the mounting frame assembly 1 includes a base plate 101, four support plates 102 and a mounting frame 103, the four support plates 102 are fixedly mounted on the top of the base plate 101, the mounting frame 103 is fixedly mounted on the top of the four support plates 102, the vertical plate 201 is fixedly mounted on the top of the base plate 101, the motor 204 is fixedly mounted on the top of the base plate 101, the support wheel 206 is fixedly mounted on one side outer wall of the mounting frame 103, and the pulley 207 is fixedly mounted on the top of the mounting frame 103.

[0022] like Figure 1As shown, in some embodiments, the flip assembly 3 includes a circular frame 301, two cylinders 302, two connecting rods 303, two sieve buckets 304, two screens 305, a second motor 306, a pulley 1 307 and a second pulley 308, the circular frame 301 is arranged in the installation frame 103, the two cylinders 302 are fixedly mounted on the outer wall of the circular frame 301, the two cylinders 302 are rotatably connected to the installation frame 103, the two connecting rods 303 are rotatably mounted on the circular frame 301, the two sieve buckets 304 are arranged in the circular frame 301, the corresponding sieve buckets 304 are fixedly connected to the two connecting rods 303, the two screens 305 are respectively fixedly mounted in the two sieve buckets 304, and the second motor 306 is fixedly mounted on the corresponding On one side outer wall of the screening bucket 304, a driving pulley 1 307 is fixedly mounted on the output shaft of the motor 2 306, the pulley 2 308 is fixedly sleeved on the corresponding connecting rod 303, and the circular frame 301 is fixedly connected to the connecting rope 205. More specifically, the motor 2 306 is started, the motor 2 306 drives the pulley 1 307 to rotate, the pulley 1 307 drives the pulley 2 308 to rotate through the transmission belt, the pulley 2 308 drives the connecting rod 303 to rotate, the connecting rod 303 rotates on the circular frame 301, and the connecting rod 303 drives the screening bucket 304 to flip over, so that the opening of the screening bucket 304 rotates downward, and the downward flipping of the screening bucket 304 causes the screened aggregate to pour downward and discharge, which has the advantages of screening the aggregate and flipping and dumping the screened aggregate.

[0023] In addition, two adjustment plates are hingedly mounted on the outer walls of the two sieve buckets 304 , and the two adjustment plates are arranged in pairs.

[0024] In addition, a transmission belt is rotatably sleeved on the pulley 1 307 , and the pulley 2 308 is rotatably connected to the transmission belt.

[0025] In addition, a driven rod 4 is rotatably mounted on the eccentric wheel 203, and a circular plate 5 is fixedly mounted on one end of the driven rod 4. The circular plate 5 is fixedly connected to the connecting rope 205. When the eccentric wheel 203 rotates, it drives the connecting rope 205 to perform circular motion. The connecting rope 205 drives the circular plate 5 to move. The circular plate 5 drives the driven rod 4 to move and rotate on the eccentric wheel 203. It has the advantage of connecting the eccentric wheel 203 and the connecting rope 205, and preventing the connecting rope 205 from twisting and knotting when the eccentric wheel 203 rotates.

[0026] In some embodiments, a partition 6 is provided on the periphery of the connecting rope 205, and a limit frame 7 is fixedly installed on the outer walls on both sides of the partition 6. The limit frame 7 is adapted to the connecting rope 205. More specifically, through the mutual cooperation between the partition 6 and the limit frame 7, the two connecting ropes 205 are separated to prevent the intersection between the two connecting ropes 205 from rubbing against each other during stretching, causing damage, and the connecting rope 205 is limited.

[0027] Working principle: Step 1: Shake in conjunction, pour the aggregate into the screen bucket 304, start the two motors 204 through the external switch, and both motors 204 rotate clockwise. Motor 1 204 drives the rotating rod 202 to rotate, and the rotating rod 202 drives the eccentric wheel 203 to rotate. The connection between the connecting rope 205 and the eccentric wheel 203 performs a circular motion. When the eccentric wheel 203 rotates, the connecting rope 205 is stretched. Because the two motors 204 are in opposite directions, the deflection wheels 203 on both sides stretch the connecting rope 205 in opposite directions. For example, the eccentric wheel 203 on the left rotates and drives the connecting rope 205 to rotate downward, pulling the connecting rope 205. The eccentric wheel 203 on the right drives the connecting rope 205 to rotate upward and stretch the connecting rope 205. Through the cooperation of the support wheel 206 and the slide 207, the connecting rope 205 is separated from the sharp corners of foreign objects when it is stretched and moved, avoiding damage caused by friction, and increasing the movement during stretching. The connecting rope 205 is stretched left and right to drive the screen bucket 304 to swing left and right. When the screen bucket 304 swings, it drives the circular frame 301 to swing together. The circular frame 301 drives the connecting rod 303 to rotate back and forth on the mounting frame 103. The screening movement 304 swings the aggregate left and right to make it roll and screen, preventing large particles of aggregate from clogging the mesh of the screen 305 and affecting the screening effect.

[0028] Step 2: Rotate to discharge. After screening is completed, start motor 2 306. Motor 2 306 drives pulley 1 307 to rotate. Pulley 1 307 drives pulley 2 308 to rotate through the transmission belt. Pulley 2 308 drives connecting rod 303 to rotate. Connecting rod 303 rotates on circular frame 301. Connecting rod 303 drives screen bucket 304 to flip over, so that the opening of screen bucket 304 rotates downward. The downward flipping of screen bucket 304 causes the screened aggregate to pour downward for discharge.

[0029] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

[0030] 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.

Claims

1. A multi-stage screening device for building aggregates, characterized in that: It includes a mounting frame assembly, two screening assemblies and a flipping assembly. The two screening assemblies are arranged on the mounting frame assembly for rotating, pulling and shaking to screen. The two screening assemblies are arranged oppositely. The flipping assembly is arranged in the mounting frame assembly for flipping and dumping the screened aggregates.

2. The multi-stage screening device for building aggregates according to claim 1, characterized in that: The screening assembly includes a vertical plate, a rotating rod, an eccentric wheel, a motor 1, a connecting cable, a support wheel and a pulley. The vertical plate is arranged on the mounting frame assembly, the rotating rod is rotatably mounted on the vertical plate, the eccentric wheel is fixedly mounted on one end of the rotating rod, the motor 1 is arranged on the mounting frame assembly, the output shaft of the motor 1 is fixedly connected to one end of the rotating rod, the connecting cable is arranged on the eccentric wheel, the support wheel is fixedly mounted on the mounting frame assembly, the connecting cable is slidably connected to the support wheel, the pulley is fixedly mounted on the mounting frame assembly, and the connecting cable is slidably connected to the pulley.

3. The multi-stage screening device for building aggregates according to claim 2, characterized in that: The connecting rope is formed by twisting multiple strands of steel wires intertwined with each other.

4. The multi-stage screening device for building aggregates according to claim 2, characterized in that: The mounting frame assembly includes a base plate, four support plates and a mounting frame, the four support plates are fixedly mounted on the top of the base plate, the mounting frame is fixedly mounted on the top of the four support plates, the vertical plate is fixedly mounted on the top of the base plate, the motor is fixedly mounted on the top of the base plate, the support wheel is fixedly mounted on one side outer wall of the mounting frame, and the pulley is fixedly mounted on the top of the mounting frame.

5. The multi-stage screening device for construction aggregates according to claim 4, characterized in that: The flip assembly includes a circular frame, two cylinders, two connecting rods, two screen buckets, two screen meshes, a second motor, a first pulley and a second pulley. The circular frame is arranged in an installation frame, the two cylinders are fixedly installed on the outer wall of the circular frame, the two cylinders are rotatably connected to the installation frame, the two connecting rods are rotatably installed on the circular frame, the two screen buckets are arranged in the circular frame, the corresponding screen buckets are fixedly connected to the two connecting rods, the two screen meshes are respectively fixedly installed in the two screen buckets, the second motor is fixedly installed on one side outer wall of the corresponding screen bucket, driving the first pulley to be fixedly installed on the output shaft of the second motor, the second pulley is fixedly sleeved on the corresponding connecting rod, and the circular frame is fixedly connected to the connecting rope.

6. The multi-stage screening device for construction aggregates according to claim 5, characterized in that: Two adjusting plates are hingedly mounted on the outer walls of the two sieve buckets, and the two adjusting plates are arranged in pairs.

7. The multi-stage screening device for construction aggregates according to claim 5, characterized in that: A transmission belt is rotatably sleeved on the first pulley, and the second pulley is rotatably connected with the transmission belt.

8. The multi-stage screening device for construction aggregates according to claim 2, characterized in that: A driven rod is rotatably mounted on the eccentric wheel, a circular plate is fixedly mounted on one end of the driven rod, and the circular plate is fixedly connected to the connecting cable.

9. The multi-stage screening device for building aggregates according to claim 2, characterized in that: A partition is arranged on the periphery of the connecting cable, and a limit frame is fixedly installed on the outer walls on both sides of the partition, and the limit frame is adapted to the connecting cable.

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