CN221733638U - Crushing and screening device - Google Patents

Abstract

The utility model provides a crushing and screening device, which belongs to the technical field of screening machines. The crushing and screening device includes a screening box, a screening mechanism and a crushing mechanism. A feed bin is installed on the upper part of the screening box, a first discharge bin is installed on the lower part of the screening box, a crushing box is connected to the side wall of the screening box, and the screening mechanism includes a first screen plate, a first rotating shaft and an eccentric shaft. The first screen plate is slidably installed in the inner cavity of the screening box. The utility model sets a screening mechanism, drives the first rotating shaft to rotate through a first motor, drives the rotating wheel to rotate, drives the first screen plate to shake in the screening box through the eccentric shaft and the connecting rod, and the materials that meet the requirements pass through the first screen plate and are discharged from the first discharge bin, and the large particles that do not meet the requirements are shaken into the crushing box. At the same time, the first rotating shaft drives the second pulley to rotate, drives the first pulley and the second rotating shaft to rotate, drives the elastic belt to rotate, and knocks the bottom of the first screen plate to prevent the material from blocking the second screen plate.

Description

A crushing and screening device

Technical Field

The utility model relates to the field of screening machines, in particular to a crushing and screening device.

Background Art

Raw materials commonly used in construction projects, such as sand, gravel, cement, coal, etc., often need to be screened to remove impurities and separate particles of different sizes. The screening machine can set different sieve hole sizes as needed, classify the raw materials into different grades according to the particle size, and remove particles that do not meet the requirements; at the same time, in construction projects such as roads, bridges, and houses, sand and gravel within a certain particle size range are required as base bed materials. The screening machine can screen the raw materials and obtain sand and gravel particles that meet the requirements for filling and paving the base bed.

However, after long-term use, a large number of large particles that do not meet the requirements will accumulate on the surface of the screen plate of the existing construction engineering screening machine, and even block the screen plate, requiring manual cleaning, which affects the screening efficiency.

Utility Model Content

In order to make up for the above deficiencies, the utility model provides a crushing and screening device that overcomes the above technical problems or at least partially solves the above problems.

The utility model is achieved in this way:

The utility model provides a crushing and screening device, comprising a screening box, a screening mechanism and a crushing mechanism, wherein a feed bin is installed on the upper part of the screening box, a first discharge bin is installed on the lower part of the screening box, a crushing box is connected to the side wall of the screening box, and the screening mechanism comprises

A first sieve plate, the first sieve plate is slidably mounted in the inner cavity of the sieving box, and a connecting shaft is fixedly mounted on the side wall of the first sieve plate;

A first rotating shaft, the first rotating shaft is rotatably mounted on the side wall of the screening box, and a rotating wheel is fixedly mounted on one end of the first rotating shaft;

An eccentric shaft is fixedly mounted on the side wall of the runner, and a connecting rod is movably connected between the eccentric shaft and the connecting shaft.

In a preferred solution, a first sliding block is fixedly mounted on the side wall of the first screen plate, a first sliding groove is provided in the inner cavity of the screening box, and the first sliding block is slidably connected to the first sliding groove.

In a preferred solution, a first motor is fixedly mounted on the side wall of the screening box, and an output end of the first motor is fixedly connected to one end of a first rotating shaft.

In a preferred solution, a second rotating shaft is rotatably mounted in the inner cavity of the screening box, a plurality of mounting discs are fixedly mounted on the surface of the second rotating shaft, and a plurality of elastic bands are symmetrically mounted on the surface of the mounting discs.

In a preferred solution, a first pulley is fixedly mounted on one end of the second rotating shaft, a second pulley is fixedly mounted on the surface of the first rotating shaft, and a belt is connected between the first pulley and the second pulley.

In a preferred embodiment, the crushing mechanism includes a crushing roller, a blade and a second screen plate. A third rotating shaft is rotatably installed in the inner cavity of the crushing box. A second motor is fixedly installed on the upper part of the crushing box. The output end of the second motor is fixedly connected to one end of the third rotating shaft. A crushing roller is fixedly installed on the surface of the third rotating shaft, and a plurality of blades are installed on the surface of the crushing roller.

In a preferred solution, the second screen plate is slidably installed in the inner cavity of the crushing box, a second slider is fixedly installed on the side wall of the second screen plate, a second slide groove is opened in the inner cavity of the crushing box, the second slider is slidably connected to the second slide groove, and a second discharge bin is installed at the lower part of the crushing box.

In a preferred solution, a plurality of first protrusions are installed on the side wall of the third rotating shaft, and a plurality of second protrusions are installed on the lower part of the second screen plate.

The utility model provides a crushing and screening device, and its beneficial effects include:

1. By setting up a screening mechanism, the first motor drives the first rotating shaft to rotate, driving the rotating wheel to rotate, and the eccentric shaft and the connecting rod drive the first screen plate to shake in the screening box. The materials that meet the requirements pass through the first screen plate and are discharged from the first discharging bin, and the large particles that do not meet the requirements are shaken into the crushing box. At the same time, the first rotating shaft drives the second pulley to rotate, drives the first pulley and the second rotating shaft to rotate, drives the elastic belt to rotate, and knocks the bottom of the first screen plate to prevent the material from blocking the second screen plate.

2. By setting up a crushing mechanism, large particles that do not meet the requirements enter the crushing box, and the third shaft and the crushing roller are driven by the second motor to rotate, and the particles are crushed by the blade, and then fall onto the surface of the second screen plate. When the third shaft rotates, the first protrusion and the second protrusion contact each other, which can drive the second screen plate to vibrate up and down, and the materials that still do not meet the requirements are thrown upward for secondary crushing until they are crushed into the required size and finally discharged from the second discharge bin.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic diagram of a front cross-sectional structure provided by an embodiment of the utility model;

FIG2 is a perspective view of an embodiment of the present utility model;

FIG3 is a top view of an embodiment of the present utility model;

FIG4 is a side cross-sectional view provided by an embodiment of the utility model;

In the figure: 1, screening box; 2, feed bin; 3, first discharge bin; 4, crushing box; 5, second discharge bin; 6, screening mechanism; 601, first screen plate; 602, first slider; 603, first slide; 604, connecting shaft; 605, first rotating shaft; 606, rotating wheel; 607, eccentric shaft; 608, connecting rod; 609, first motor; 610, second rotating shaft; 611, mounting plate; 612, elastic belt; 613, first pulley; 614, second pulley; 7, crushing mechanism; 701, third rotating shaft; 702, second motor; 703, crushing roller; 704, blade; 705, second screen plate; 706, second slider; 707, second slide; 708, first bump; 709, second bump.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Example

1-4, the utility model provides a technical solution: a crushing and screening device, comprising a screening box 1, a screening mechanism 6 and a crushing mechanism 7, a feeding bin 2 is installed on the upper part of the screening box 1 for inputting materials, a first discharging bin 3 is installed on the lower part of the screening box 1 for discharging materials that meet the specifications, a crushing box 4 is connected to the side wall of the screening box 1 for crushing large particles that do not meet the requirements, and a second discharging bin 5 is installed on the lower part of the crushing box 4 for discharging the crushed materials.

Referring to Figures 1-3, in a preferred embodiment, the screening mechanism 6 includes a first screen plate 601, a first rotating shaft 605 and an eccentric shaft 607. The first screen plate 601 is slidably installed in the inner cavity of the screening box 1 for screening materials. A first slider 602 is fixedly installed on the side wall of the first screen plate 601. A first slide groove 603 is opened in the inner cavity of the screening box 1, and the first slider 602 is slidably connected to the first slide groove 603. A connecting shaft 604 is fixedly installed on the side wall of the first sieve plate 601, and a first rotating shaft 605 is rotatably installed on the side wall of the screening box 1. A rotating wheel 606 is fixedly installed on one end of the first rotating shaft 605 for driving the first sieve plate 601. An eccentric shaft 607 is fixedly installed on the side wall of the rotating wheel 606, and the eccentric shaft 607 is installed at a non-center position of the rotating wheel 606. A connecting rod 608 is movably connected between the eccentric shaft 607 and the connecting shaft 604. A first motor 609 is fixedly installed on the side wall of the screening box 1. The first motor 609 is electrically connected to an external power supply for driving the first rotating shaft 605, and an output end of the first motor 609 is fixedly connected to one end of the first rotating shaft 605.

1-3, in a preferred embodiment, a second rotating shaft 610 is rotatably installed in the inner cavity of the screening box 1, a plurality of mounting disks 611 are fixedly installed on the surface of the second rotating shaft 610, and a plurality of elastic belts 612 are symmetrically installed on the surface of the mounting disks 611. When the second rotating shaft 610 drives the mounting disks 611 to rotate, the elastic belts 612 can be driven to rotate, thereby knocking the bottom of the first screen plate 601 to prevent the material from clogging the first screen plate 601. A first pulley 613 is fixedly installed at one end of the second rotating shaft 610, a second pulley 614 is fixedly installed on the surface of the first rotating shaft 605, and a belt is connected between the first pulley 613 and the second pulley 614.

In a preferred embodiment, when in use, the material to be screened is put into the screening box 1 through the feed bin 2, the material falls onto the surface of the first screen plate 601, and the first rotating shaft 605 is driven to rotate by the first motor 609, driving the rotating wheel 606 to rotate, and the first screen plate 601 is driven to shake in the screening box 1 through the eccentric shaft 607 and the connecting rod 608. The material that meets the requirements passes through the first screen plate 601 and is discharged from the first discharge bin 3, and the large particle material that does not meet the requirements is shaken into the crushing box 4. At the same time, the first rotating shaft 605 drives the second pulley 614 to rotate, drives the first pulley 613 and the second rotating shaft 610 to rotate, drives the elastic belt 612 to rotate, and knocks the bottom of the first screen plate 601 to prevent the material from blocking the first screen plate 601.

1-4, in a preferred embodiment, the crushing mechanism 7 includes a crushing roller 703, a blade 704 and a second screen plate 705, a third rotating shaft 701 is rotatably installed in the inner cavity of the crushing box 4, a second motor 702 is fixedly installed on the upper part of the crushing box 4, the output end of the second motor 702 is fixedly connected to one end of the third rotating shaft 701, a crushing roller 703 is fixedly installed on the surface of the third rotating shaft 701, and a plurality of blades 704 are installed on the surface of the crushing roller 703 for crushing large particles.

1-4, in a preferred embodiment, the second sieve plate 705 is slidably installed in the inner cavity of the crushing box 4 for screening the crushed materials, the second sieve plate 705 side wall is fixedly installed with a second slider 706, the inner cavity of the crushing box 4 is provided with a second slide groove 707, the second slider 706 is slidably connected with the second slide groove 707, a plurality of first protrusions 708 are installed on the side wall of the third rotating shaft 701, and a plurality of second protrusions 709 are installed on the lower part of the second sieve plate 705. When the third rotating shaft 701 rotates, the first protrusions 708 and the second protrusions 709 contact each other, so that the second sieve plate 705 can be driven to vibrate up and down, and the materials that still do not meet the requirements are thrown upward for secondary crushing until they are crushed into the required size and finally discharged from the second discharge bin 5.

In a preferred embodiment, when in use, large particles that do not meet the requirements enter the crushing box 4, and the third shaft 701 and the crushing roller 703 are driven to rotate by the second motor 702, and the particles are crushed by the blade 704, and then fall onto the surface of the second screen plate 705. When the third shaft 701 rotates, the first protrusion 708 and the second protrusion 709 contact each other, which can drive the second screen plate 705 to vibrate up and down, and the materials that still do not meet the requirements are thrown upward for secondary crushing until they are crushed into the required size and finally discharged from the second discharge bin 5.

Specifically, the working process or working principle of this crushing and screening device is: when in use, the material to be screened is put into the screening box 1 through the feed bin 2, and the material falls onto the surface of the first screen plate 601. The first motor 609 drives the first rotating shaft 605 to rotate, driving the rotating wheel 606 to rotate, and the first screen plate 601 is driven to shake in the screening box 1 through the eccentric shaft 607 and the connecting rod 608. The material that meets the requirements passes through the first screen plate 601 and is discharged from the first discharge bin 3, and the large particle material that does not meet the requirements is shaken into the crushing box 4. At the same time, the first rotating shaft 605 drives the second pulley 614 to rotate, drives the first pulley 613 and the second rotating shaft 610 to rotate, drives the elastic belt 612 to rotate, and knocks the bottom of the first screen plate 601 to prevent the material from blocking the first screen plate 601.

The large particles that do not meet the requirements enter the crushing box 4, and the third shaft 701 and the crushing roller 703 are driven to rotate by the second motor 702, and the particles are crushed by the blade 704, and then fall onto the surface of the second screen plate 705. When the third shaft 701 rotates, the first protrusion 708 and the second protrusion 709 contact each other, which can drive the second screen plate 705 to vibrate up and down, and the materials that still do not meet the requirements are thrown upward for secondary crushing until they are crushed into the required size and finally discharged from the second discharge bin 5.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

It should be noted that the first motor 609 and the second motor 702 are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art. Their power supply, specific composition and principles are clear to those skilled in the art, so they are not described in detail.

Claims (8)

1. Crushing and screening device, its characterized in that includes screening case (1), screening mechanism (6) and crushing mechanism (7), feeding storehouse (2) are installed on screening case (1) upper portion, first play feed bin (3) are installed to screening case (1) lower part, screening case (1) lateral wall intercommunication has crushing case (4), screening mechanism (6) include

The first sieve plate (601), the first sieve plate (601) is slidably arranged in the inner cavity of the screening box (1), and a connecting shaft (604) is fixedly arranged on the side wall of the first sieve plate (601);

The screening device comprises a first rotating shaft (605), wherein the first rotating shaft (605) is rotatably arranged on the side wall of a screening box (1), and a rotating wheel (606) is fixedly arranged at one end of the first rotating shaft (605);

The eccentric shaft (607), eccentric shaft (607) fixed mounting is in runner (606) lateral wall, swing joint has connecting rod (608) between eccentric shaft (607) and connecting axle (604).

2. The crushing and screening device according to claim 1, wherein a first sliding block (602) is fixedly arranged on the side wall of the first screen plate (601), a first sliding groove (603) is formed in the inner cavity of the screening box (1), and the first sliding block (602) is in sliding connection with the first sliding groove (603).

3. A crushing and screening device according to claim 1, characterized in that the screening box (1) side wall is fixedly provided with a first motor (609), the output end of the first motor (609) is fixedly connected with one end of a first rotating shaft (605).

4. A crushing and screening device according to claim 1, characterized in that the second rotating shaft (610) is rotatably mounted in the inner cavity of the screening box (1), a plurality of mounting plates (611) are fixedly mounted on the surface of the second rotating shaft (610), and a plurality of elastic belts (612) are symmetrically mounted on the surface of the mounting plates (611).

5. The crushing and screening device according to claim 4, wherein a first belt pulley (613) is fixedly mounted at one end of the second rotating shaft (610), a second belt pulley (614) is fixedly mounted on the surface of the first rotating shaft (605), and a belt is connected between the first belt pulley (613) and the second belt pulley (614).

6. A crushing and screening device according to claim 1, characterized in that the crushing mechanism (7) comprises a crushing roller (703), blades (704) and a second screen plate (705), a third rotating shaft (701) is rotatably arranged in the inner cavity of the crushing box (4), a second motor (702) is fixedly arranged at the upper part of the crushing box (4), the output end of the second motor (702) is fixedly connected with one end of the third rotating shaft (701), the crushing roller (703) is fixedly arranged on the surface of the third rotating shaft (701), and a plurality of blades (704) are arranged on the surface of the crushing roller (703).

7. The crushing and screening device according to claim 6, wherein the second screen plate (705) is slidably mounted in an inner cavity of the crushing box (4), a second sliding block (706) is fixedly mounted on a side wall of the second screen plate (705), a second sliding groove (707) is formed in the inner cavity of the crushing box (4), the second sliding block (706) is slidably connected with the second sliding groove (707), and a second discharging bin (5) is mounted at the lower portion of the crushing box (4).

8. A crushing and screening device according to claim 7, characterized in that the side wall of the third shaft (701) is provided with a number of first protrusions (708), and the lower part of the second screen plate (705) is provided with a number of second protrusions (709).