Asphalt concrete raw material feeding mechanism

Abstract

The utility model belongs to the technical field of asphalt concrete production, and particularly relates to an asphalt concrete raw material feeding mechanism which comprises a feeding rack. A storage hopper, weighing hoppers, a first conveying belt and a second conveying belt are mounted on the feeding rack, the weighing hoppers are connected with the feeding rack through weighing sensors, and the weighing hoppers are in one-to-one correspondence; the first conveying belt and the second conveying belt are parallel to each other; discharging ports of different weighing hoppers extend to the second conveying belt or the position above the second conveying belt. Movable valve plates are arranged at discharge ports of the storage hopper and the weighing hopper, and when the corresponding valve plates are moved away, raw materials at the raw material station can fall onto the first conveying belt, and raw materials at the regenerated material station can fall onto the second conveying belt. According to the scheme, the feeding mechanism integrates the functions of raw material subpackaging, weighing, conveying and the like, weighing and conveying can be conducted according to the proportion of asphalt concrete according to actual needs, a large amount of manpower is saved, automation of asphalt concrete production is facilitated, and the production efficiency of the asphalt concrete is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bitumen concrete production technical field, concretely relates to a kind of feeding mechanism of bitumen concrete raw material. BACKGROUND

[0002] Bitumen concrete is also called asphalt concrete, which is a mixture of mineral aggregate, crushed stone or gravel, stone chips or sand, mineral powder and a certain proportion of road asphalt material, prepared under strict control conditions. In the actual production process of bitumen concrete, it is often necessary to transport and add raw materials without mixing asphalt, and also to transport and add recycled asphalt raw materials.

[0003] In the prior art, the raw material ratio needs to be manually weighed, which consumes a lot of manpower and is not conducive to the automation of bitumen concrete production, affecting the production efficiency of bitumen concrete. UTILITY MODEL CONTENT

[0004] To solve the above problems existing in the prior art, the present scheme provides a feeding mechanism of bitumen concrete raw material.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A feeding mechanism of bitumen concrete raw material, comprising a feeding rack;

[0007] A plurality of storage hoppers are arranged in a linear array on the upper layer of the feeding rack; a plurality of weighing hoppers are arranged on the middle layer of the feeding rack, the weighing hoppers are connected to the feeding rack through weighing sensors, the weighing hoppers are correspondingly arranged below the storage hoppers, and the discharge outlets of the storage hoppers are aligned downward to the feeding inlets of the weighing hoppers; a first conveying belt and a second conveying belt are arranged side by side on the lower layer of the feeding rack, and the output ends of the first and second conveying belts extend out from the same direction of the feeding rack;

[0008] The feeding rack comprises a raw material station and a recycled material station, and at least one storage hopper is arranged at each of the raw material station and the recycled material station; the discharge outlet of the weighing hopper at the raw material station extends above the first conveying belt, and the discharge outlet of the weighing hopper at the recycled material station extends above the second conveying belt;

[0009] A movable valve plate is arranged at the discharge outlet of each of the storage hopper and the weighing hopper, when the corresponding valve plate is moved away, the raw material at the raw material station can fall onto the first conveying belt, and the recycled material at the recycled material station can fall onto the second conveying belt.

[0010] As an alternative or supplement to the above feeding mechanism, a horizontal discharge auger is arranged at the outlet of the storage hopper at the recycled material station, and the discharge auger is driven by an auger motor.

[0011] As an alternative or supplement to the above feeding mechanism: the storage hopper adopts an inclined conical structure, and the discharge port of the storage hopper is inclined to the second conveying belt or the first conveying belt.

[0012] As an alternative or supplement to the above feeding mechanism: a vibration motor is installed on the outer side wall of part or all of the storage hopper, and a vibration motor is installed on the weighing hopper of part or all of the storage hopper.

[0013] As an alternative or supplement to the above feeding mechanism: the valve plate is a long strip plate structure, and both ends of the valve plate are rotatably connected to the shaft members at the discharge ports through separate swing arms, and the valve plate can be offset from or block the corresponding discharge port after rotation.

[0014] As an alternative or supplement to the above feeding mechanism: a drive is connected between the valve plate and the weighing hopper, and the drive is used to control the rotation of the valve plate.

[0015] As an alternative or supplement to the above feeding mechanism: the drive is a telescopic hydraulic cylinder or a telescopic electric cylinder.

[0016] As an alternative or supplement to the above feeding mechanism: the output ends of the first conveying belt and the second conveying belt are upwardly inclined.

[0017] The feeding mechanism in the present scheme integrates functions of raw material dispensing, weighing, and conveying, can weigh and convey according to the actual needs according to the proportioning of asphalt concrete, saves a large amount of manpower, is conducive to the automation of asphalt concrete production, and improves the production efficiency of asphalt concrete. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present scheme or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced.

[0019] Fig. 1 is a structural schematic view of the feeding mechanism of asphalt concrete raw materials in the present scheme;

[0020] Fig. 2 is a cooperation structure view of the storage hopper and the weighing hopper;

[0021] Fig. 3 is a cross-sectional structure view of the storage hopper and the weighing hopper.

[0022] In the figure: 1-first conveying belt; 2-second conveying belt; 3-storage hopper; 4-weighing hopper; 5-feeding rack; 6-vibration motor; 7-drive; 8-valve plate; 9-swing arm; 10-stirring motor; 11-weighing sensor; 12-discharge stirring. DETAILED DESCRIPTION

[0023] The technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. Based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this solution.

[0024] Example 1

[0025] like Figs. 1 to 3 As shown, this embodiment designs a feeding mechanism for asphalt concrete raw materials, including a feeding frame 5, a storage hopper 3, a weighing hopper 4, a first conveyor belt 1 and a second conveyor belt 2 and other components.

[0026] The loading frame 5 adopts a frame structure and is formed with three layers: upper, middle and lower.

[0027] Several storage hoppers 3 are arranged in a straight line and fixedly installed on the upper layer of the loading frame 5. The storage hoppers 3 adopt an oblique conical bucket structure. The discharge ports of different storage hoppers 3 have different directions, so that the discharge ports of different storage hoppers 3 can be tilted toward the second conveyor belt 2 or the first conveyor belt 1 respectively.

[0028] A weighing hopper 4 is correspondingly arranged below each storage hopper 3, that is, the storage hopper 3 and the weighing hopper 4 are in a one-to-one correspondence. Several weighing hoppers 4 are installed on the middle layer of the loading frame 5. The discharge port of the storage hopper 3 is located directly above the feed port of the weighing hopper 4, and the discharge port of the storage hopper 3 is downwardly aligned with the feed port of the weighing hopper 4, so that the raw materials in the storage hopper 3 can fall into the weighing hopper 4.

[0029] The weighing hopper 4 is connected to the feeding frame 5 via a weighing sensor 11, so that the weighing hopper 4 can weigh the raw materials, so as to facilitate the proportioning of the raw materials of asphalt concrete during the production of asphalt concrete.

[0030] The first conveyor belt 1 and the second conveyor belt 2 are arranged side by side and installed on the lower layer of the loading frame 5. The output ends of the first conveyor belt 1 and the second conveyor belt 2 extend from the same direction of the loading frame 5. When the raw materials in the weighing hopper 4 fall onto the first conveyor belt 1 or the second conveyor belt 2, the raw materials can be transported to the equipment of the next production link through the first conveyor belt 1 or the second conveyor belt 2.

[0031] The feeding frame 5 includes a raw material station and a recycled material station, and each station is provided with at least one storage hopper 3; the discharge outlet of the weighing hopper 4 at the raw material station extends above the first conveying belt 1, and the discharge outlet of the weighing hopper 4 at the recycled material station extends above the second conveying belt 2; each discharge outlet of the storage hopper 3 and the weighing hopper 4 is provided with a movable valve plate 8, and when the corresponding valve plate 8 is moved away, the raw material at the raw material station can fall onto the first conveying belt 1, and the raw material at the recycled material station can fall onto the second conveying belt 2.

[0032] The outlet of the storage hopper 3 at the recycled material station is provided with a horizontal discharge auger 12, the discharge auger 12 is driven by an auger motor 10, the auger motor 10 is arranged outside the storage hopper 3, and the output shaft of the auger motor 10 is in transmission connection with the discharge auger 12; when the auger motor 10 is started, the discharge auger 12 rotates and stirs the raw material in the storage hopper 3, thereby reducing the probability of clogging of the recycled raw material in the storage hopper 3 due to its own viscosity.

[0033] Vibration motors 6 are mounted on the outer walls of part or all of the storage hoppers 3, and vibration motors 6 are mounted on the weighing hoppers 4 of part or all of the storage hoppers 3. Thus, the vibration motors 6 are used to vibrate the raw material in the storage hoppers 3, thereby reducing the probability of clogging at the discharge outlets of the storage hoppers 3 or the weighing hoppers 4.

[0034] The valve plate 8 is in the shape of a long strip, the shape and size of the valve plate 8 match the discharge outlet of the storage hopper 3 or the weighing hopper 4, and the two ends of the valve plate 8 are in rotational connection with the shaft members at the discharge outlets through respective swing arms 9. The shaft members at the discharge outlets can cross the storage hopper 3 or the weighing hopper 4, the valve plate 8 is rotated to a position that is staggered with the corresponding discharge outlet, thereby opening the discharge outlet to facilitate the falling of the raw material; the valve plate 8 can also be rotated to a position that directly faces the corresponding discharge outlet, thereby closing the discharge outlet to block the falling raw material.

[0035] A driver 7 is connected between the valve plate 8 and the weighing hopper 4, the driver 7 is a telescopic hydraulic cylinder or a telescopic electric cylinder, and the driver 7 is used to control the rotation of the valve plate 8. The cylinder body of the telescopic hydraulic cylinder or the telescopic electric cylinder can be in rotational connection with the outer wall of the storage hopper 3 or the weighing hopper 4, and the telescopic rod of the telescopic hydraulic cylinder or the telescopic electric cylinder is in rotational connection with the side edge of the valve plate 8.

[0036] The output ends of the first conveying belt 1 and the second conveying belt 2 are upwardly inclined, thereby achieving the height increase of the raw material conveying.

[0037] The feeding mechanism of the embodiment is used as follows: raw materials are loaded into the storage hopper 3 at the raw material station according to different categories, or / and, recycled materials are loaded into the storage hopper 3 at the recycled material station according to different categories; when feeding is needed, the valve plate 8 at the storage hopper 3 is opened according to actual needs, so that the raw materials fall into the weighing hopper 4 until the weight of the raw materials in the weighing hopper 4 meets the set requirements. Then the valve plate 8 at the weighing hopper 4 is opened, and the raw materials in the weighing hopper 4 fall onto the first conveying belt 1 or the second conveying belt 2 to convey the raw materials.

[0038] The above embodiments are only examples for clearly illustrating the made examples, and are not limitations on the embodiments; all the embodiments do not need to be exhausted here, and cannot be exhausted here. The obvious changes or changes derived therefrom are still within the protection scope of the technology.

Claims

1. A feeding mechanism for asphalt concrete raw materials, characterized by: The feeding rack (5) is provided with a plurality of storage hoppers (3) arranged in a linear form on the upper layer of the feeding rack (5); a plurality of weighing hoppers (4) are arranged on the middle layer of the feeding rack (5), the weighing hoppers (4) are connected to the feeding rack (5) through a weighing sensor (11), the weighing hoppers (4) are arranged one by one below the storage hoppers (3), the discharge outlets of the storage hoppers (3) are aligned downward to the feeding inlets of the weighing hoppers (4); the first conveying belt (1) and the second conveying belt (2) are arranged side by side on the lower layer of the feeding rack (5), the output ends of the first conveying belt (1) and the second conveying belt (2) extend from the same direction of the feeding rack (5); The feeding rack (5) comprises a raw material station and a regenerated material station, and at least one storage hopper (3) is arranged at the raw material station and the regenerated material station; the discharge outlet of the weighing hopper (4) at the raw material station extends above the first conveying belt (1), and the discharge outlet of the weighing hopper (4) at the regenerated material station extends above the second conveying belt (2). A movable valve plate (8) is arranged at the discharge outlet of the storage hopper (3) and the weighing hopper (4), when the corresponding valve plate (8) is moved away, the raw material at the raw material station can fall onto the first conveying belt (1), and the raw material at the regenerated material station can fall onto the second conveying belt (2). A horizontal discharge auger (12) is arranged at the outlet of the storage hopper (3) at the regenerated material station, and the discharge auger (12) is driven by an auger motor (10).

2. The asphalt concrete raw material feeding mechanism according to claim 1, characterized in that: The storage hopper (3) adopts an inclined conical structure, and the discharge outlet of the storage hopper (3) is inclined to the second conveying belt (2) or the first conveying belt (1).

3. The asphalt concrete raw material feeding mechanism according to claim 1, characterized in that: A vibration motor (6) is arranged on the outer side wall of part or all of the storage hoppers (3), and a vibration motor (6) is arranged on the weighing hopper (4) of part or all of the storage hoppers (3).

4. The asphalt concrete raw material feeding mechanism according to claim 1, characterized in that: The valve plate (8) is in a long strip structure, both ends of the valve plate (8) are rotatably connected to the shaft members at the discharge outlets through separate swing arms (9), and the valve plate (8) can be offset from or block the corresponding discharge outlet after being rotated.

5. The asphalt concrete raw material feeding mechanism according to claim 1, characterized in that: A driver (7) is connected between the valve plate (8) and the weighing hopper (4) or the storage hopper (3), and the driver (7) is used for controlling the rotation of the valve plate (8).

6. The asphalt concrete raw material feeding mechanism according to claim 5, characterized in that: The driver (7) is a telescopic hydraulic cylinder or a telescopic electric cylinder.

7. The asphalt concrete raw material feeding mechanism according to claim 6, characterized in that: The output ends of the first conveying belt (1) and the second conveying belt (2) are upwardly inclined.

8. The asphalt concrete raw material feeding mechanism according to claim 1, characterized in that: ​

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