Granular asphalt screening device

Abstract

The utility model discloses a granular asphalt screening device, which relates to the technical field of screening devices and comprises a frame shell, supporting pin shafts are uniformly arranged on the front inner side wall and the rear inner side wall of the frame shell, and the outer sides of the supporting pin shafts are rotatably connected with groove rollers. A rotating shaft is rotationally connected between the front side wall and the rear side wall of the frame shell and located on the left side of the supporting pin shaft at the left end, an oval block is arranged in the middle of the rotating shaft, a motor connected with the rotating shaft is arranged at the front end of the frame shell, and a screening mechanism is placed above the groove rolling wheels in the same row. The screening mechanism comprises baffles which are opposite in the left-right direction, the baffles are matched with the groove rolling wheels, and connecting rods are evenly arranged between the upper portions of the baffles in the left-right direction. The screening mechanism can be inserted into the device from the upper left direction or pulled out of the device along the groove rolling wheels, the disassembly and assembly process is convenient and fast, and the screening efficiency is improved. Therefore, the screening device is suitable for screening materials with different particle sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a granular asphalt screening device. Background Art

[0002] Asphalt is an organic cementing material that is waterproof, moisture-proof and anti-corrosive. Asphalt is mainly used in industries such as coatings, plastics, rubber, and road paving. Asphalt granular materials need to be screened according to the required size before use. Since the required size may vary according to needs, the screens of some existing screening devices are not easy to disassemble and assemble, and there are certain limitations on their use. Utility Model Content

[0003] The purpose of the utility model is to provide a granular asphalt screening device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a granular asphalt screening device, comprising a frame shell, the front and rear inner side walls of the frame shell are evenly provided with support pins, the outer side of the support pin is rotatably connected to a groove roller, a rotating shaft is rotatably connected between the front and rear side walls of the frame shell and on the left side of the support pin at the left end, an elliptical block is provided in the middle of the rotating shaft, a motor connected to the rotating shaft is provided at the front end of the frame shell, a screening mechanism is placed above the grooved roller in the same line, the screening mechanism includes left and right opposite baffles, the baffles and the grooved rollers are adapted to each other, connecting rods are evenly provided on the left and right sides between the upper parts of the baffles, a screening net is provided between the lower parts of the baffles, a card block is provided between the lower left corners of the baffles, the card block is in contact with the elliptical block, a feed hopper is penetrated through the upper side wall of the frame shell, and a discharge hopper is provided on the right part of the frame shell and at the lower right part of the screening mechanism.

[0005] Preferably, the support pins are arranged in two rows up and down, and the support pins in the same row are higher on the left and lower on the right.

[0006] Preferably, the outlet of the upper discharge hopper faces rearward, and the outlet of the lower discharge hopper faces rightward.

[0007] Preferably, a conveying device is provided between the front and rear side walls of the frame shell and between the screening mechanisms.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: the screening mechanism can be inserted into or pulled out of the device along the groove roller from the upper left, the disassembly and assembly process is relatively convenient, and the screening mechanism with a suitable screen size can be selected according to the screening requirements. The elliptical block can support the screening card block, and the screening mechanism can be moved back and forth left and right by driving the elliptical block to rotate through the motor, thereby assisting the screening net to separate and discharge materials of consistent particle size from the discharge hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model.

[0010] Figure 2 for Figure 1 Schematic diagram of the left-view cross-sectional structure along the AA section line.

[0011] In the figure: 1. frame shell; 2. support pin; 3. groove roller; 4. rotating shaft; 5. elliptical block; 6. baffle; 7. connecting rod; 8. screening net; 9. card block; 10. feed hopper; 11. discharge hopper; 12. conveying equipment. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] See also Figure 1 and Figure 2The utility model provides a technical solution: a granular asphalt screening device, including a frame shell 1, the front and rear inner side walls of the frame shell 1 are evenly provided with support pins 2, the outer side of the support pin 2 is rotatably connected with a groove roller 3, the frame shell 1 is composed of side walls in three directions of front, back and top, the support pin 2 is fixed on the front and rear inner side walls of the frame shell 1, the groove roller 3 is sleeved on the outer side of the support pin 2 and can rotate thereon, the head of the support pin 2 is formed with a protrusion to prevent the groove roller 3 from escaping from the support pin 2, and the screening mechanism is supported by the groove roller 3, and a rotating shaft 4 is rotatably connected between the front and rear side walls of the frame shell 1 and on the left side of the support pin 2 at the left end, and the middle part of the rotating shaft 4 is provided with The elliptical block 5 is provided at the front end of the frame housing 1 with a motor connected to the rotating shaft 4. The front and rear ends of the rotating shaft 4 extend into the frame housing 1 and can rotate therein, and can also be connected through bearings. The elliptical block 5 is fixed to the middle of the rotating shaft 4, and the motor is fixed on the frame housing 1. The output end of the motor is connected to the rotating shaft 4. The rotating shaft 4 and the elliptical block 5 are driven to rotate by the motor. The electrical equipment in the device is connected to an external power supply and control device. A screening mechanism is placed above the groove roller 3 in the same row. The screening mechanism includes left and right opposite baffles 6. The baffles 6 and the groove roller 3 are adapted to each other. Connecting rods 7 are evenly arranged between the upper parts of the baffles 6 on the left and right, and a screening net 8 is arranged between the lower parts of the baffles 6. A card block 9 is provided between the lower left corners of the baffle 6, and the card block 9 contacts the elliptical block 5. The screening mechanism is composed of a baffle 6, a connecting rod 7, a screening net 8 and a card block 9. The connecting rod 7, the screening net 8 and the card block 9 are fixed between the front and rear baffles 6 to connect the two baffles 6 as a whole. The baffle 6 can be sunk into the groove of the groove roller 3. The screening mechanism is placed on the groove roller 3. The screening mechanism can be inserted into the device along the groove roller 3 from the upper right or pulled out. The card block 9 fixed on the baffle 6 will be held by the elliptical block 5. The rotation of the elliptical block 5 can push the card block 9 back and forth, so that the screening mechanism can move back and forth left and right, so that the screening net 8 can filter the material, and the upper and lower parts can be selected according to the particle size to be screened. The size of the screening nets 8 in the lower two screening mechanisms is that the upper screening net 8 removes materials with larger particles, and the lower screening net 8 removes materials with smaller particles. A feed hopper 10 is provided on the upper side wall of the frame shell 1, and a discharge hopper 11 is provided on the right part of the frame shell 1 and at the lower right side of the screening mechanism. The feed hopper 10 is fixed on the frame shell 1, and materials are added to the left end of the upper screening mechanism. The discharge hopper 11 is fixed on the right end of the frame shell 1. The upper and lower discharge hoppers 11 correspond to the right ends of the upper and lower screening mechanisms respectively, and the materials sliding out of the screening mechanism are received through the discharge hopper 11. If materials with smaller particles need to be recovered, additional structures such as chutes or trolleys can be provided under the lower screening mechanism for guidance or collection.

[0014] Preferably, the support pins 2 are arranged in two rows, with the support pins 2 in the same row being higher on the left and lower on the right. Two rows of support pins 2 are arranged on the front and rear inner walls of the frame shell 1, and the support pins 2 arranged on the left and right are tilted to the right, so that the screening mechanism placed on the support pins 2 and the groove roller 3 is tilted to facilitate the sliding of the material.

[0015] Preferably, the outlet of the upper discharge hopper 11 faces rearward, and the outlet of the lower discharge hopper 11 faces rightward. The two discharge hoppers 11 respectively collect materials discharged from the upper and lower screening mechanisms, and the outlets of the discharge hoppers 11 are staggered to facilitate external collection.

[0016] Preferably, a conveying device 12 is provided between the front and rear side walls of the frame shell 1 and between the screening mechanisms. The conveying device 12 can be an existing roller-driven conveyor belt transmission device. The conveying mechanism can receive the material falling from the upper screening mechanism, and transfer this part of the material to the left and add it to the left end of the lower screening mechanism, so as to prevent the material falling from the upper part from falling directly to the rear half of the screening mechanism, so that the material on the lower screening mechanism has enough length space for screening and separation.

[0017] Working principle: Select two appropriate screening mechanisms according to the required particle size of the asphalt material, so that the upper screening net 8 intercepts materials with larger particles, and the lower screening net 8 removes materials with smaller particles. The screening mechanism can be put in or pulled out along the groove roller 3 from the upper left, and the block 9 on the screening mechanism will stop on the elliptical block 5. The motor drives the rotating shaft 4 and the elliptical block 5 to rotate, so that the screening mechanism can move back and forth left and right, which has the effect of vibration to assist the screening net 8 for separation. Add the material from the feed hopper 10, and the material slides along the upper screening net 8. The material with larger particles is discharged from the device from the upper discharge hopper 11 along the upper screening net 8. The remaining material passes through the upper screening net 8 and falls onto the lower screening net 8. The material with moderate particles is discharged from the device from the lower discharge hopper 11 along the lower screening net 8. The material with smaller particles passes through the lower screening net 8 and accumulates on the ground.

[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A granular asphalt screening device, comprising a frame housing (1), characterized in that: The front and rear inner side walls of the frame shell (1) are evenly provided with support pins (2), the outer side of the support pins (2) is rotatably connected to a groove roller (3), between the front and rear side walls of the frame shell (1) and on the left side of the support pin (2) at the left end, a rotating shaft (4) is rotatably connected, the middle of the rotating shaft (4) is provided with an elliptical block (5), the front end of the frame shell (1) is provided with a motor connected to the rotating shaft (4), and a screening mechanism is placed above the groove roller (3) in the same row, the screening mechanism comprising a left A baffle (6) opposite to the right, the baffle (6) and the groove roller (3) are adapted to each other, connecting rods (7) are evenly arranged between the upper parts of the baffle (6) on the left and right, a screening net (8) is arranged between the lower parts of the baffle (6), a clamping block (9) is arranged between the lower left corners of the baffle (6), the clamping block (9) is in contact with the elliptical block (5), a feed hopper (10) is penetrated through the upper side wall of the frame shell (1), and a discharge hopper (11) is arranged on the right part of the frame shell (1) and at the lower right side of the screening mechanism.

2. A granular asphalt screening device according to claim 1, characterized in that: The support pins (2) are arranged in two rows up and down, and the support pins (2) in the same row are higher on the left and lower on the right.

3. A granular asphalt screening device according to claim 1, characterized in that: The outlet of the upper discharge hopper (11) faces rearward, and the outlet of the lower discharge hopper (11) faces rightward.

4. A granular asphalt screening device according to claim 1, characterized in that: A conveying device (12) is provided between the front and rear side walls of the frame shell (1) and between the screening mechanisms.

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