Multistage screening device for milled material

Abstract

The utility model relates to milling and planing material screening technical field especially is used for multi -stage screening device of milling and planing material. The utility model provides can directly separate the big milling and planing material to the broken case, avoids the big milling and planing material direct to first screening board and damage, prolongs the multi -stage screening device for milling and planing material of equipment life. The multi -stage screening device for milling and planing material, including the bottom plate and first support frame etc. The bottom plate right part upside is connected with first support frame. The utility model discloses by the milling and planing material is arranged to the partition plate top, makes the big milling and planing material along the partition plate and guide plate and is arranged in the broken case, and the small milling and planing material directly falls to first screening board and carries out screening, reaches can directly separate the big milling and planing material to the broken case, avoids the big milling and planing material direct to first screening board and damage, prolongs the effect of equipment life.

Description

Technical Field

[0001] This utility model relates to the field of milling material screening technology, and in particular to a multi-stage screening device for milling materials. Background Technology

[0002] In road maintenance and repair, milling machines are often used to remove old and damaged asphalt pavements, producing a large amount of milled material. This milled material contains particles of different sizes and hardness, including large road debris and fine sand and gravel particles.

[0003] Existing multi-stage screening devices typically feed milled material directly into the device and then screen it through the screening plate. Larger pieces of milled material are then fed into the crushing chamber for further crushing. However, because large pieces of milled material have a large impact force, when they directly hit the screening plate, they not only cause severe impact and wear on the plate, but may also deform or damage it, thus shortening the service life of the equipment.

[0004] Therefore, it is necessary to design a multi-stage screening device for milled materials that can directly separate large pieces of milled material into the crushing box, preventing large pieces of milled material from directly hitting the first screening plate and causing damage, thus extending the service life of the equipment. Utility Model Content

[0005] To overcome the shortcomings of existing multi-stage screening methods, where large pieces of milled material have a large impact force, directly impacting the screening plate and causing severe impact and wear, as well as deformation or damage, thus shortening the service life of the equipment, this utility model provides a multi-stage screening device for milled material that can directly separate large pieces of milled material into the crushing box, avoiding damage from direct impact on the first screening plate and extending the service life of the equipment.

[0006] The technical solution of this utility model is: a multi-stage screening device for milled material, including a base plate, a first support frame, a screening component and a buffer separation component. The first support frame is connected to the upper right side of the base plate. The screening component capable of multi-stage screening of milled material is provided on the first support frame. A buffer separation component capable of separating large pieces of milled material is provided between the base plate and the first support frame.

[0007] Furthermore, the screening assembly includes a screening frame, a vibrating motor, a first screening plate, a second screening plate, and a third screening plate. The screening frame is slidably connected to the upper part of the first support frame, the vibrating motor is connected to the front side of the screening frame, the first screening plate is connected to the upper part of the screening frame, the second screening plate is connected to the middle part of the screening frame, and the third screening plate is connected to the lower part of the screening frame.

[0008] Furthermore, it also includes a buffer partition assembly, which includes a connecting frame, fixing blocks, partition plates, and springs. The connecting frame is connected to the upper side of the middle of the base plate and is connected to the first support frame. Multiple sets of fixing blocks are connected to the upper part of the connecting frame. Each set consists of two fixing blocks, one in front and one in back. Partition plates are slidably connected between the fixing blocks in the same set. Springs are connected between the front and back parts of the partition plates and the fixing blocks in the same set.

[0009] Furthermore, it also includes baffles, with baffles connected to the upper rear side of the connecting frame, and the partition plates all contacting the baffles.

[0010] Furthermore, it also includes a second support frame, a crushing box, a regular motor, and crushing rollers. The second support frame is connected to the upper left side of the base plate, and the crushing box is connected to the upper part of the second support frame. Regular motors are connected to the rear left and right sides of the crushing box, and crushing rollers are connected to the output shafts of the regular motors. The crushing rollers are rotatably connected to the crushing box.

[0011] Furthermore, a guide plate is provided on the upper right side of the crushing box.

[0012] The beneficial effects are as follows: 1. By feeding the milled material above the partition plate, large pieces of milled material are fed into the crushing box along the partition plate and guide plate, while small pieces of milled material fall directly onto the first screening plate for screening. This achieves the effect of directly separating large pieces of milled material into the crushing box, avoiding damage to the first screening plate caused by large pieces of milled material, and extending the service life of the equipment.

[0013] 2. This utility model utilizes the principle that when milling material falls, it contacts and squeezes the partition plate, causing the partition plate to move downwards on the fixed block. After the spring is compressed and contracts, it returns to its original state, causing the partition plate to move upwards and reset. Under the action of the spring, the milling material is buffered, thus achieving the effect of buffering when the milling material falls, reducing equipment wear, and extending the service life of this device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the first screening plate and the second screening plate of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the fixing block and partition plate of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the ordinary motor and crushing roller components of this utility model.

[0018] In the attached diagram, the following are the reference numerals: 1_base plate, 2_first support frame, 3_screening frame, 4_vibrating motor, 5_first screening plate, 6_second screening plate, 7_third screening plate, 8_connecting frame, 9_baffle, 10_fixing block, 11_dividing plate, 12_spring, 13_second support frame, 14_crushing box, 15_ordinary motor, 16_crushing roller. Detailed Implementation

[0019] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Multi-stage screening devices for milled materials, such as Figure 1 and Figure 2 As shown, it includes a base plate 1, a first support frame 2, a screening component and a buffer separation component. The first support frame 2 is connected to the upper right side of the base plate 1. The screening component is provided on the first support frame 2. A buffer separation component is provided between the base plate 1 and the first support frame 2.

[0021] like Figure 1 and Figure 2 As shown, the screening assembly includes a screening frame 3, an oscillating motor 4, a first screening plate 5, a second screening plate 6, and a third screening plate 7. The screening frame 3 is slidably connected to the upper part of the first support frame 2. The oscillating motor 4 is connected to the front side of the screening frame 3. The first screening plate 5 is connected to the upper part of the screening frame 3. The second screening plate 6 is connected to the middle part of the screening frame 3. The third screening plate 7 is connected to the lower part of the screening frame 3.

[0022] like Figure 1 and Figure 3 As shown, it also includes a buffer partition assembly, which includes a connecting frame 8, a fixing block 10, a partition plate 11, and a spring 12. The connecting frame 8 is connected to the upper side of the middle part of the base plate 1. The connecting frame 8 is connected to the first support frame 2. Seven sets of fixing blocks 10 are connected to the upper part of the connecting frame 8. Each set consists of two fixing blocks 10, one in front and one in back. The fixing blocks 10 in the same set are slidably connected to the partition plate 10. The partition plate 11 is connected to the fixing blocks 10 in the same set by springs 12 at both the front and back.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, it also includes a baffle 9, a second support frame 13, a crushing box 14, a common motor 15, and a crushing roller 16. The baffle 9 is connected to the upper rear side of the connecting frame 8, and the partition plates 11 are all in contact with the baffle 9. The second support frame 13 is connected to the upper left side of the bottom plate 1, and the crushing box 14 is connected to the upper part of the second support frame 13. A guide plate is provided on the upper right side of the crushing box 14 to facilitate the guidance of large pieces of milled material into the crushing box 14. The common motor 15 is connected to the rear left and right sides of the crushing box 14, and the crushing roller 16 is connected to the output shaft of the common motor 15. The crushing roller 16 is rotatably connected to the crushing box 14.

[0024] When using this device, first place the base plate 1 in the multi-stage screening area for milled material. Then, the milled material is discharged above the partition plate 11 via the conveying assembly. The baffle 9 provides protection, allowing large pieces of milled material to be discharged along the partition plate 11 and guide plate into the crushing box 14, while smaller pieces fall directly onto the first screening plate 5 for screening. This allows large pieces of milled material to be directly separated into the crushing box 14, preventing them from directly impacting and damaging the first screening plate 5, thus extending the equipment's service life. Simultaneously, when the milled material falls, it contacts and presses against the partition plate 11, causing the partition plate 11 to move downwards on the fixed block 10. The spring 12, after being compressed and contracted, returns to its original position, causing the partition plate 11 to move upwards and reset. Under the action of the spring 12, the material is further screened. The milled material is buffered to cushion its fall, reducing wear and extending the lifespan of the device. Then, the oscillating motor 4 is started, generating vibrations that move the screening frame 3 left and right on the first support frame 2. The milled material undergoes multi-stage screening through the first screening plate 5, the second screening plate 6, and the third screening plate 7. The milled material on the first screening plate 5 is discharged from the right, the milled material on the second screening plate 6 is discharged from the rear of the screening frame 3, and the milled material on the third screening plate 7 is discharged from below the screening frame 3. Then, the ordinary motor 15 is started, driving the crushing roller 16 to rotate. The crushing roller 16 crushes large pieces of milled material, and the crushed milled material is discharged from below the crushing box 14.

[0025] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A multi-stage screening device for milled materials, characterized in that, The system includes a base plate (1), a first support frame (2), a screening assembly, and a buffer separation assembly. The first support frame (2) is connected to the upper right side of the base plate (1). The first support frame (2) is equipped with a screening assembly capable of multi-stage screening of milled material. A buffer separation assembly capable of separating large pieces of milled material is provided between the base plate (1) and the first support frame (2). The screening assembly includes a screening frame (3), an oscillating motor (4), a first screening plate (5), a second screening plate (6), and a third screening plate (7). The screening frame (3) is slidably connected to the upper part of the first support frame (2). The oscillating motor (4) is connected to the front side of the screening frame (3). The first screening plate (7) is connected to the upper part of the screening frame (3). The screen (5) is connected to the middle of the screening frame (3) and the third screening plate (7) is connected to the lower part of the screening frame (3). The buffer separation assembly includes a connecting frame (8), a fixing block (10), a partition plate (11) and a spring (12). The upper side of the middle of the bottom plate (1) is connected to the connecting frame (8). The connecting frame (8) is connected to the first support frame (2). The upper part of the connecting frame (8) is connected to multiple sets of fixing blocks (10). Each set consists of two fixing blocks (10) in front and behind. The fixing blocks (10) in the same set are slidably connected to the partition plate (11). The front and back parts of the partition plate (11) are connected to the fixing blocks (10) in the same set by springs (12).

2. The multi-stage screening device for milled material according to claim 1, characterized in that, It also includes a baffle (9), and the upper rear side of the connecting frame (8) is connected to the baffle (9), and the partition plate (11) is in contact with the baffle (9).

3. The multi-stage screening device for milled material according to claim 1, characterized in that, It also includes a second support frame (13), a crushing box (14), a regular motor (15) and a crushing roller (16). The second support frame (13) is connected to the upper left side of the base plate (1), and the crushing box (14) is connected to the upper part of the second support frame (13). The regular motor (15) is connected to the rear left and right sides of the crushing box (14). The crushing roller (16) is connected to the output shaft of the regular motor (15). The crushing roller (16) is rotatably connected to the crushing box (14).

4. The multi-stage screening device for milled material according to claim 3, characterized in that, A guide plate is provided on the upper right side of the crushing box (14).

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