Asphalt concrete vibrating screen classifier

Abstract

The utility model discloses an asphalt concrete vibrating screening machine which comprises a machine frame, a screening inclined hopper is horizontally arranged on the inner side of the machine frame, and a contact block is welded to the left end of the screening inclined hopper. According to the vibrating screen, the screening inclined hopper, the vibrating motor, the bottom frame, the L-shaped base, the auxiliary vibrating spring, the contact block, the motor and the cam are adopted, the cam is driven to rotate by starting the motor, and the side supporting column of the screening inclined hopper is elastically connected with the reset spring in the placement opening through the convex column, so that the screening inclined hopper can keep a continuous contact state with the cam under the action of the contact block; along with rotation of the cam, the screening inclined hopper reciprocates in the horizontal direction, then the vibrating motor is started to drive the rack and the screening inclined hopper on the inner side of the rack to vibrate, aggregate falling from the feeding hopper is screened through the screen, and the aggregate meeting the requirement for the aperture of the screen is discharged through the discharging nozzle. And the aggregate which does not meet the screen mesh aperture requirement is discharged from the opening at the tail end of the screening inclined hopper.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt concrete screening, in particular to an asphalt concrete vibration screening machine. Background Art

[0002] Asphalt concrete, commonly known as asphalt concrete, is a mixture of artificially selected mineral materials with a certain graded composition, such as crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, mixed under strictly controlled conditions. In the process of preparing asphalt concrete, the asphalt concrete raw materials (aggregates) need to be screened, so screening equipment is needed.

[0003] The existing technology has the following problems:

[0004] 1. In the prior art, application number CN202021572628.6 discloses an asphalt concrete raw material screening machine. In this scheme, a driving device is used to drive the vibration frame to vibrate, throw up the aggregate, and realize the screening of the aggregate. However, since the screening form of the driving device for aggregate screening is relatively single, it not only reduces the aggregate screening efficiency, but also makes it more likely to cause the screen to be blocked.

[0005] 2. In the prior art, vibration screening machines are often used as screening equipment for asphalt concrete raw materials. The installation method of the screening mechanism of the vibration screening machines on the market is relatively complicated. During the long-term screening process, the screen of the screening mechanism is very likely to be blocked or damaged due to long-term impact of aggregates, which causes inconvenience to the removal and maintenance of the screening mechanism.

[0006] To this end, we proposed an asphalt concrete vibrating screening machine to solve the above-mentioned drawbacks. Utility Model Content

[0007] The utility model aims to solve the shortcomings in the prior art and proposes an asphalt concrete vibrating screening machine.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an asphalt concrete vibrating screening machine, comprising a frame, a screening inclined bucket is horizontally arranged on the inner side of the frame, and a contact block is welded to the left end of the screening inclined bucket, and the right end of the screening inclined bucket extends to the outside of the frame, a screen is fixed on the inclined surface of the bottom of the screening inclined bucket, a feed hopper is arranged on the left side above the frame corresponding to the screening inclined bucket, a motor is fixed on the left side of the upper part of the frame, and a cam that abuts against the contact block is arranged at the output end of the motor, a base frame is arranged below the frame, and the top of the base frame An L-shaped seat is welded through a support rod, and a number of auxiliary vibration springs are arranged between the L-shaped seat and the frame. A side support is welded to the side of the screening inclined bucket, and convex columns are welded on both sides of the side support. A placement opening is opened in the middle of the frame, and reset springs are fixed on both sides of the placement opening. The side support extends to the inside of the placement opening, and the two convex columns of the side support are respectively connected to the two reset springs in the placement opening. A vibration motor is fixed to the bottom of the frame, and the vibration head of the vibration motor is vibrationally connected to the frame, and a discharge nozzle is connected to the right side of the bottom surface of the frame.

[0009] Preferably, a slideway is fixed to both side walls inside the frame by screws, and sliders are welded to the two side surfaces of the screening inclined bucket through support columns, and the sliders are slidably connected to the inner slideway.

[0010] Preferably, two material guide plates are welded to the inner bottom of the frame, and the two material guide plates are arranged to be inclined toward each other with respect to the discharge nozzle.

[0011] Preferably, an opening is formed at one end of the screening inclined bucket away from the contact block, and openings are formed at both ends of the frame corresponding to the screening inclined bucket.

[0012] Preferably, a side of the contact block facing the cam is provided with an arc concave surface, and the arc concave surface is in contact with the side surface of the cam.

[0013] Preferably, a plurality of dust hoods are equidistantly arranged above the frame, and the plurality of dust hoods are all connected to an external industrial vacuum cleaner.

[0014] Preferably, two legs are welded on a side of the slideway away from the screening inclined bucket, and each leg is arranged in a T-shaped structure, and the legs are fixedly connected to the inner wall of the frame by screws.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model adopts a screening inclined bucket, a vibration motor, a base frame, an L-shaped seat, an auxiliary vibration spring, a contact block, a motor, and a cam. The cam is driven to rotate by a starting motor. Since the side support of the screening inclined bucket adopts a convex column and an elastic connection with a reset spring in the placement port, the screening inclined bucket can maintain a continuous contact state with the cam under the action of the contact block. As the cam rotates, the screening inclined bucket reciprocates in the horizontal direction. Then, the starting vibration motor is started to drive the frame and the screening inclined bucket inside it to vibrate. Aggregates dropped from the feed hopper are screened through the screen. Aggregates that meet the requirements of the screen aperture are discharged from the discharge nozzle, and aggregates that do not meet the requirements of the screen aperture are discharged from the opening at the rear end of the screening inclined bucket. Compared with the prior art, the utility model combines reciprocating screening and vibration screening into one, which can meet the requirements of efficient aggregate screening and is not prone to screen clogging.

[0017] (2) The utility model adopts a placement opening, a slideway, a support leg, a slider, a side support, a reset spring, and a convex column. By pushing the screening bucket built into the frame to the right in the horizontal direction, the side support of the screening bucket uses the convex column to compress the reset spring in the placement opening, forcing another reset spring inside the placement opening and another convex column of the side support to disengage from the socket state, so that the side support is freed from the restraint of the placement opening, and then further pushing the screening bucket built into the frame to the right, so that the slider of the screening bucket is disconnected from the connection with the slideway, and the contact block of the screening bucket is disconnected from the contact state with the cam, until the screening bucket is able to be disengaged from the opening on the top surface of the frame. Compared with the prior art, the screening bucket is easy to be replaced and maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below.

[0019] Figure 1 This is a structural schematic diagram of an asphalt concrete vibrating screening machine proposed by the utility model;

[0020] Figure 2 A top view of a frame of an asphalt concrete vibrating screening machine proposed in the utility model;

[0021] Figure 3 The utility model provides a schematic diagram of the screening inclined bucket structure of an asphalt concrete vibrating screening machine.

[0022] Legend:

[0023] 1. Frame; 2. Screening inclined hopper; 3. Feed hopper; 4. Placement port; 5. Discharge nozzle; 6. Guide plate; 7. Vibration motor; 8. Base frame; 9. L-shaped seat; 10. Auxiliary vibration spring; 11. Contact block; 12. Motor; 13. Cam; 14. Open mouth; 15. Screen; 16. Slide; 17. Leg; 18. Slider; 19. Side support; 20. Reset spring; 21. Boss. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0025] Please refer to Figure 1-3 A vibrating screening machine for asphalt concrete comprises a frame 1, a screening inclined bucket 2 is horizontally arranged inside the frame 1, a contact block 11 is welded to the left end of the screening inclined bucket 2, and the right end of the screening inclined bucket 2 extends to the outside of the frame 1, a screen 15 is fixed on the inclined surface at the bottom of the screening inclined bucket 2, a feed hopper 3 is arranged on the left side above the frame 1 corresponding to the screening inclined bucket 2, a motor 12 is fixed to the left side of the upper part of the frame 1, and a cam 13 abutting against the contact block 11 is arranged at the output end of the motor 12, a bottom frame 8 is arranged below the frame 1, and an L-shaped seat 9 is welded to the top of the bottom frame 8 through a support rod, and the L A number of auxiliary vibration springs 10 are arranged between the mold base 9 and the frame 1, a side support 19 is welded to the side of the screening inclined bucket 2, and convex columns 21 are welded on both sides of the side support 19, a placement opening 4 is opened in the middle of the frame 1, and reset springs 20 are fixed on both sides of the placement opening 4, the side support 19 extends to the inside of the placement opening 4, and the two convex columns 21 of the side support 19 are respectively connected to the two reset springs 20 in the placement opening 4, a vibration motor 7 is fixed to the bottom of the frame 1, and the vibration head of the vibration motor 7 is vibrationally connected to the frame 1, and the right side of the bottom surface of the frame 1 is connected to a discharge nozzle 5.

[0026] In this embodiment: the principle of the vibration motor 7 is an existing known technology, and there are mature products, so its principle is not further explained. In order to facilitate the rolling of aggregates, an inclined surface is set at the bottom of the screening bucket 2, and the screen 15 is on the inclined surface at the bottom of the screening bucket 2. The control method of the vibration motor 7 and the motor 12 of the utility model is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in this field, and the utility model is mainly used to protect mechanical devices, so the utility model no longer explains the control method and wiring layout in detail.

[0027] Specifically, a slideway 16 is fixed to both side walls inside the frame 1 by screws, and sliders 18 are respectively welded to the two side surfaces of the screening inclined bucket 2 through support columns, and the sliders 18 are slidably connected to the inner slideway 16 .

[0028] In this embodiment, the slideway 16 and the slider 18 are provided to provide a guide structure for the screening inclined bucket 2 to maintain the stability of the screening inclined bucket 2 in the reciprocating motion stage.

[0029] Specifically, two material guide plates 6 are welded to the inner bottom of the frame 1 , and the two material guide plates 6 are arranged to be inclined toward each other with respect to the discharge nozzle 5 .

[0030] In this embodiment, two guide plates 6 are provided so that aggregates meeting the aperture requirements of the screen 15 are discharged from the discharge nozzle 5 .

[0031] Specifically, an opening is formed at one end of the screening inclined bucket 2 away from the contact block 11 , and openings 14 are formed at both ends of the frame 1 corresponding to the screening inclined bucket 2 .

[0032] In this embodiment, the opening is provided to facilitate discharge of aggregates that do not meet the aperture requirements of the screen 15 .

[0033] Specifically, a side of the contact block 11 facing the cam 13 is provided with an arc concave surface, and the arc concave surface is in contact with the side surface of the cam 13 .

[0034] In this embodiment, the fit between the contact block 11 and the cam 13 is increased by providing the arc concave surface.

[0035] Specifically, a plurality of dust hoods are equidistantly arranged above the frame 1, and the plurality of dust hoods are all connected to an external industrial vacuum cleaner.

[0036] In this embodiment: by setting up several dust hoods, the dust in the screening stage of the rack 1 can be absorbed to reduce environmental pollution. The principle of the external industrial vacuum cleaner is an existing known technology, and there are mature products, so the principle is not further explained.

[0037] Specifically, two legs 17 are welded to a side of the slideway 16 away from the screening inclined bucket 2 , and each leg 17 is arranged in a T-shaped structure, and the leg 17 is fixedly connected to the inner wall of the frame 1 by screws.

[0038] In this embodiment, the slideway 16 is easily installed by providing two legs 17 .

[0039] Working principle: During operation, firstly, the aggregate required for preparing asphalt concrete to be screened is put into the feed hopper 3, so that the aggregate passes through the feed hopper 3 and enters the frame 1. When screening, the cam 13 is driven to rotate by the starting motor 12. Since the side support 19 of the screening inclined bucket 2 is elastically connected with the return spring 20 in the placement port 4 by the convex column 21, the screening inclined bucket 2 is able to maintain a continuous contact state with the cam 13 under the action of the contact block 11. With the rotation of the cam 13, the screening inclined bucket 2 makes reciprocating motion in the horizontal direction, and then the starting vibration motor 7 is started to drive the frame 1 and the screening inclined bucket 2 inside it to vibrate, and the aggregate dropped from the feed hopper 3 is screened through the screen 15, and the aggregate that meets the aperture requirements of the screen 15 is discharged from the discharge nozzle 5. Aggregates that meet the aperture requirements of the screen 15 are discharged from the opening at the rear end of the screening bucket 2. When the screening bucket 2 is disassembled, the screening bucket 2 built into the frame 1 is pushed rightward in the horizontal direction, so that the side support 19 of the screening bucket 2 uses the convex column 21 to compress the return spring 20 in the placement port 4, forcing another return spring 20 inside the placement port 4 and another convex column 21 of the side support 19 to disengage from the socket state, so that the side support 19 is freed from the restraint of the placement port 4, and then the screening bucket 2 built into the frame 1 is further pushed rightward, so that the slider 18 of the screening bucket 2 is disconnected from the slideway 16, and the contact block 11 of the screening bucket 2 is disconnected from the contact state with the cam 13, until the screening bucket 2 is able to escape from the opening on the top surface of the frame 1.

[0040] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. An asphalt concrete vibrating screening machine, comprising a frame (1), characterized in that: A screening slant bucket (2) is horizontally arranged inside the frame (1), and a contact block (11) is welded to the left end of the screening slant bucket (2), and the right end of the screening slant bucket (2) extends to the outside of the frame (1), a screen (15) is fixed on the inclined surface at the bottom of the screening slant bucket (2), a feed hopper (3) is arranged on the left side above the frame (1) corresponding to the screening slant bucket (2), and a motor (12) is fixed on the left side of the upper part of the frame (1), and a cam (13) abutting against the contact block (11) is arranged at the output end of the motor (12), a base frame (8) is arranged below the frame (1), and an L-shaped seat (9) is welded to the top of the base frame (8) through a support rod, and a space between the L-shaped seat (9) and the frame (1) is provided. A plurality of auxiliary vibration springs (10) are provided, a side support (19) is welded to the side of the screening inclined bucket (2), and convex columns (21) are welded to both sides of the side support (19), a placement opening (4) is provided in the middle of the frame (1), and return springs (20) are fixed on both sides of the placement opening (4), the side support (19) extends to the inside of the placement opening (4), and the two convex columns (21) of the side support (19) are respectively connected to the two return springs (20) in the placement opening (4), a vibration motor (7) is fixed to the bottom of the frame (1), and the vibration head of the vibration motor (7) is vibrationally connected to the frame (1), and the right side of the bottom surface of the frame (1) is connected to a discharge nozzle (5).

2. The asphalt concrete vibrating screening machine according to claim 1, characterized in that: A slideway (16) is fixed to both side walls of the frame (1) by screws, and sliders (18) are welded to the two side surfaces of the screening inclined bucket (2) by support columns, respectively, and the sliders (18) are slidably connected to the inner slideway (16).

3. The asphalt concrete vibrating screening machine according to claim 1, characterized in that: Two material guide plates (6) are welded to the inner bottom of the frame (1), and the two material guide plates (6) are arranged to be inclined toward each other with respect to the discharge nozzle (5).

4. The asphalt concrete vibrating screening machine according to claim 1, characterized in that: An opening is provided at one end of the screening inclined bucket (2) away from the contact block (11), and openings (14) are provided at both ends of the frame (1) corresponding to the screening inclined bucket (2).

5. The asphalt concrete vibrating screening machine according to claim 1, characterized in that: A circular arc concave surface is provided on a side of the contact block (11) facing the cam (13), and the circular arc concave surface is in contact with the side surface of the cam (13).

6. The asphalt concrete vibrating screening machine according to claim 1, characterized in that: A plurality of dust removal hoods are arranged at equal intervals above the frame (1), and the plurality of dust removal hoods are all connected to an external industrial vacuum cleaner.

7. The asphalt concrete vibrating screening machine according to claim 2, characterized in that: Two supporting legs (17) are welded to a side of the slideway (16) facing away from the screening inclined bucket (2), and each supporting leg (17) is arranged in a T-shaped structure, and the supporting leg (17) is fixedly connected to the inner wall of the frame (1) by screws.

Images