Belt head cover internal material scattering device and feeding mechanism

Abstract

The utility model relates to the field of screening system auxiliary device discloses a kind of belt conveyor head cover internal material scattering device and feeding mechanism.The belt conveyor head cover internal material scattering device includes support assembly, pivot, scattering rod, first connecting rod, second connecting rod and drive assembly, specifically, support assembly is set to the top of belt conveyor head cover, pivot rotation is penetrated in support assembly, one end of scattering rod is fixedly connected with pivot, its other end is movably passed through the top of belt conveyor head cover and extends to the material falling area close to the belt conveyor discharge end, one end of first connecting rod is fixedly connected with pivot, the other end of first connecting rod is rotatably connected with one end of second connecting rod, the other end of second connecting rod is rotatably connected with the output end of drive assembly set to the side of support assembly, drive assembly provides power to drive first connecting rod and second connecting rod to work cooperatively, to realize the reciprocating swing of scattering rod, scattering material falling from the belt conveyor discharge end.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for screening systems, specifically to a material dispersing device and a feeding mechanism inside the head cover of a belt conveyor. Background Technology

[0002] In the production process of building material aggregate plants, screening machines are one of the main pieces of equipment for limestone processing. Their main function is to screen limestone into finished aggregates of different particle sizes. During this process, the degree of dispersion of the limestone as it enters the screening machine directly affects the screening efficiency. Currently, limestone conveying in building material aggregate plants commonly uses belt conveyors in conjunction with chutes. The belt conveyor transports the limestone to a designated location, and then the chutes guide it into a screening system. However, when conveying limestone by belt conveyor, the material often naturally concentrates in the centerline area of ​​the belt, failing to achieve uniform distribution across the belt width. This material concentration leads to localized material buildup within the screening machine as the material falls from the belt conveyor to the screening machine, reducing screening efficiency. Consequently, the entire screening system must consume more electrical energy to maintain operation, resulting in a significant increase in system power consumption. Utility Model Content The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a material dispersing device and a feeding mechanism inside the head cover of a belt conveyor. This material dispersing device inside the head cover of the belt conveyor can improve the screening efficiency of the screening machine and reduce the power consumption of the entire screening system.

[0003] To achieve the above objectives, the first aspect of this utility model provides a material dispersing device inside the head cover of a belt conveyor, comprising: Support components are located on top of the conveyor belt head cover; The pivot shaft rotates through the support assembly. The dispersing rod has one end fixedly connected to the rotating shaft, and the other end movably passes through the top of the conveyor head cover and extends to the material falling area near the unloading end of the conveyor. The first connecting rod is fixedly connected at one end to the rotating shaft; The second connecting rod is rotatably connected at one end to the other end of the first connecting rod; A drive component is disposed on the side of the support component. The output end of the drive component is rotatably connected to the other end of the second connecting rod and is used to drive the dispersing rod to swing back and forth.

[0004] Optionally, the driving component includes: Rotating component; A rotating plate, the center of which is fixedly connected to the output shaft of the rotating assembly; A connecting column is provided on the side of the rotating plate away from the rotating assembly, and located near the edge of the rotating plate; Optionally, the rotating assembly includes a drive motor and a reducer disposed at the output end of the drive motor.

[0005] Optionally, the support assembly includes two opposing rolling bearings through which the shaft passes.

[0006] Optionally, a limiting opening is provided at the top of the conveyor head cover, and the limiting opening is located between the two rolling bearings.

[0007] Optionally, the limiting opening is set as a rectangular opening of 80mm × 50mm.

[0008] Optionally, the length of the dispersing rod inside the conveyor head cover is 300mm longer than the height of the upper shell of the conveyor head cover.

[0009] Optionally, the reciprocating swing angle of the dispersing rod is 50°.

[0010] A second aspect of this utility model provides a feeding mechanism, comprising: Belt conveyor; A conveyor head cover is installed over the unloading end of the conveyor belt; Such as the material dispersing device inside the conveyor belt head cover mentioned above.

[0011] Optionally, the lower end of the conveyor head cover is connected to the feed inlet of the screening machine.

[0012] Through the above technical solution, the material dispersing device inside the conveyor head cover provided by this utility model, through the cooperation of the support component, rotating shaft, dispersing bar, first connecting rod, second connecting rod and drive component, makes the dispersing bar swing back and forth in the area where the material falls from the output end of the conveyor, thereby dispersing the material, increasing the degree of dispersion of the material when it enters the screening machine, thereby improving the screening efficiency of the screening machine and reducing the power consumption of the entire screening system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a material dispersing device inside a belt conveyor head cover provided by this utility model; Figure 2 This is an installation diagram of a material dispersing device inside a belt conveyor head cover provided by this utility model.

[0014] Explanation of reference numerals in the attached figures 1. Support assembly; 11. Rolling bearing; 2. Rotating shaft; 3. Dispersing bar; 4. First connecting rod; 5. Second connecting rod; 6. Drive assembly; 61. Rotating assembly; 611. Drive motor; 612. Reducer; 62. Rotating plate; 63. Connecting column; 7. Belt conveyor; 8. Belt conveyor head cover. Detailed Implementation

[0015] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0016] It should be noted that in the description of this utility model, the terms "top," "upper," "lower," etc., indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] Furthermore, the terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "comprising" indicate that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0018] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] The building material aggregate screening system of this utility model mainly includes a screening machine and a feeding mechanism. The screening machine has a screening chamber and a driving device. The driving device is used to drive the screen inside the screening chamber to vibrate, so as to screen limestone into finished aggregates of different particle sizes. The feeding mechanism is configured to convey the material to be screened into the screening chamber of the screening machine. Commonly, the input end of the feeding mechanism is connected to the discharge end of the belt conveyor 7, and the belt conveyor 7 conveys the crushed limestone into the screening machine through the feeding mechanism.

[0020] When conveying materials on belt conveyor 7, the materials tend to concentrate in the centerline area of ​​the belt, making it impossible to achieve uniform distribution across the belt width. This causes localized material accumulation when the material falls from belt conveyor 7 onto the screening machine, reducing the screening efficiency. Consequently, the entire screening system has to consume more electrical energy to maintain operation, resulting in increased system power consumption. Based on this, combined Figure 1 and Figure 2 As shown, this utility model provides a material dispersing device inside the conveyor head cover 8, which is set inside the conveyor head cover 8 between the discharge end of the conveyor 7 and the input end of the feeding mechanism. It forcibly disperses the limestone material concentrated in the center line area of ​​the bearing surface of the conveyor 7 when the conveyor 7 is unloaded, so as to ensure that the material entering the feeding mechanism is evenly distributed in the width direction, thereby solving the problem of local accumulation in the screening machine. The dispersing device includes a support assembly 1, a rotating shaft 2, a dispersing rod 3, a first connecting rod 4, a second connecting rod 5, and a drive assembly 6. Specifically, the support assembly 1 is located on the top of the conveyor head cover 8. The rotating shaft 2 rotatably passes through the support assembly 1. One end of the dispersing rod 3 is fixedly connected to the rotating shaft 2, and the other end movably passes through the top of the conveyor head cover 8 and extends to the material falling area near the unloading end of the conveyor 7. One end of the first connecting rod 4 is fixedly connected to the rotating shaft 2, and the other end of the first connecting rod 4 is rotatably connected to one end of the second connecting rod 5. The other end of the second connecting rod 5 is rotatably connected to the output end of the drive assembly 6 located on the side of the support assembly 1. The drive assembly 6 provides power to drive the first connecting rod 4 and the second connecting rod 5 to work together, thereby realizing the reciprocating swing of the dispersing rod 3 and dispersing the falling material.

[0021] In this invention, the support component 1 serves as the supporting structure for the dispersing device and needs to be able to withstand various forces generated during the operation of the device. It is understood that the connection between the support component 1 and the top of the conveyor head cover 8 can be any suitable method known to those skilled in the art, as long as the support component 1 is securely installed. For example, welding or bolting connections can be used.

[0022] In this invention, the rotating shaft 2 passes through the support assembly 1, enabling its rotational freedom. One end of the dispersing rod 3 is fixedly connected to the rotating shaft 2, and the connection method can be any suitable method known to those skilled in the art, such as welding or keying, as long as it ensures that the two do not undergo relative displacement during the operation of the device. The other end of the rod moves through the top of the conveyor head cover 8 and extends to the material falling area near the discharge end of the conveyor 7.

[0023] It is understood that the dispersing rod 3 can be designed in any suitable shape, such as cylindrical or flat, to adapt to materials with different properties. Furthermore, in order to enhance the dispersing effect, in some embodiments, the surface of the dispersing rod 3 can be provided with some protrusions or grooves. The protrusions or grooves can increase the friction between the dispersing rod 3 and the material, making the material easier to disperse when it comes into contact with the dispersing rod 3.

[0024] In some embodiments, the dispersing rod 3 can be configured as a cylinder with a diameter of 40 mm, and the material can be selected as nitrided 40Cr alloy steel.

[0025] In some embodiments, the length of the dispersing rod 3 inside the conveyor head cover 8 is 300mm longer than the height of the upper housing of the conveyor head cover 8. This dimensional design ensures that the dispersing rod 3 has sufficient room to move within the conveyor head cover 8, effectively covering the material drop area during conveyor unloading, thereby ensuring that material concentrated in the centerline area of ​​the conveyor 7's bearing surface is fully dispersed during drop. It is understood that during actual installation, the height of the upper housing of the conveyor head cover 8 can be measured first, and then the length of the dispersing rod 3 can be machined or adjusted according to this height to ensure that the dimensional relationship between the two meets the requirements.

[0026] In this invention, one end of the first connecting rod 4 is fixedly connected to the rotating shaft 2. The connection method can be any suitable method known to those skilled in the art, such as welding or keying, as long as the connection is secure. The connection between the other end of the first connecting rod 4 and one end of the second connecting rod 5 can also be any suitable method known to those skilled in the art, as long as they can maintain relative rotation; for example, a pin can be used for rotational connection. Similarly, the other end of the second connecting rod 5 can also be rotatably connected to the output end of the drive assembly 6 via a pin. This connecting rod structure can effectively transmit the power of the drive assembly 6 to the dispersing rod 3, enabling it to reciprocate.

[0027] In summary, the material dispersing device inside the conveyor head cover 8 provided by this utility model has a simple structure and is easy to operate. Through the drive assembly 6, the first connecting rod 4 and the second connecting rod 5 work together to cause the dispersing rod 3 to reciprocate in the material falling area, forcibly dispersing the limestone material concentrated in the center line area of ​​the conveyor belt 7 during its fall. This ensures that the material entering the feeding mechanism is evenly distributed in the width direction, solving the problem of local accumulation in the screening machine. This further improves the screening efficiency of the screening machine. Due to the increased screening efficiency, the entire screening system does not need to consume excessive electrical energy to maintain operation, reducing the overall power consumption of the system, achieving the goal of energy saving and emission reduction, and saving production costs for enterprises.

[0028] Specifically, the drive assembly 6 in this invention may include a rotating assembly 61, a rotating plate 62, and a connecting post 63. The center of the rotating plate 62 is fixedly connected to the output shaft of the rotating assembly 61. The rotating plate 62 rotates as the output shaft rotates. It is understood that the rotating plate 62 can be any suitable shape, preferably a circular plate. The connecting post 63 is located on the side of the rotating plate 62 away from the rotating assembly 61 and is positioned near the edge of the rotating plate 62. Further, the rotating assembly 61 includes a drive motor 611 and a reducer 612 disposed at the output end of the drive motor 611.

[0029] Specifically, the output shaft of the drive motor 611 and the input end of the reducer 612 can be connected via a flexible coupling. The flexible coupling is made of high-strength polyurethane, possessing excellent shock absorption and buffering performance, capable of compensating for installation errors between the motor output shaft and the reducer 612 input shaft, ensuring the stability and reliability of power transmission. The output end of the reducer 612 is connected to the center of the rotating plate 62. The connection method can be any suitable method known to those skilled in the art, such as fixing via a key connection and a shoulder for positioning. Specifically, a keyway adapted to the size of the keyway is machined on the output shaft of the reducer 612, and a corresponding keyway is also formed on the inner wall of the center hole of the rotating plate 62. After the keyway is embedded in the keyway, the rotating plate 62 is fitted onto the output shaft, so that the keyway is simultaneously embedded in the keyways of both, achieving torque transmission. The shoulder is located at a specific position on the output shaft of the reducer 612, which can axially position the rotating plate 62 and prevent axial movement of the rotating plate 62 during rotation. In addition, in some embodiments, a shaft elastic retaining ring may be provided at the mating point between the rotating plate 62 and the output shaft of the reducer 612 to further enhance the stability of the connection. In actual operation, the drive motor 611 provides initial power, and the high-speed rotational motion it generates is transmitted to the reducer 612 through a flexible coupling. The gear set inside the reducer 612, according to a preset transmission ratio, converts the high speed of the drive motor 611 into a low speed and correspondingly increases the torque. The power, after speed adjustment and torque amplification by the reducer 612, is transmitted to the rotating plate 62 through a key. Since the center of the rotating plate 62 is fixed on the output shaft of the reducer 612, the rotating plate 62 begins to rotate around its central axis as the output shaft rotates. The connecting column 63, located at the edge of the rotating plate 62, follows the rotating plate 62 in a circular motion. The circular motion of the connecting column 63, transmitted through the second connecting rod 5 and the first connecting rod 4, is ultimately converted into the reciprocating oscillation of the dispersing rod 3, thereby dispersing the material. In some embodiments, the rotational speed of the rotating plate 62 and the oscillation frequency of the dispersing rod 3 can be adjusted by changing the reducer 612 with different transmission ratios or by adjusting the frequency converter of the drive motor 611, according to different material characteristics and dispersing requirements, in order to achieve the best dispersing effect. Specifically, the reducer is connected to the output end of the drive motor 611, and the rotating plate 62 is connected to the output end of the reducer. The drive motor 611 provides power, and the reducer 612 adjusts the speed to drive the rotating plate 62 to rotate.

[0030] In this invention, the support assembly 1 includes two oppositely arranged rolling bearings 11, through which the rotating shaft 2 passes. The rolling bearings 11 can provide stable support for the rotating shaft 2, reduce the frictional resistance when the rotating shaft 2 rotates, and ensure that the rotating shaft 2 can rotate flexibly.

[0031] In this invention, a limiting opening is provided at the top of the conveyor head cover 8, and the limiting opening is located between two rolling bearings 11. Specifically, the limiting opening is set as a rectangular opening of 80mm×50mm. This limiting opening can both ensure that the dispersing bar 3 can move within a certain range and limit the movement of the dispersing bar 3.

[0032] In this invention, the reciprocating swing angle of the dispersing rod 3 is 50°. This swing angle was determined through experiments and calculations, ensuring that the dispersing rod 3 effectively disperses the limestone material concentrated in the centerline area of ​​the conveyor belt 7's bearing surface, while also preventing interference between the dispersing rod 3 and other internal components of the conveyor head cover 8 due to an excessively large swing angle. It is understood that when the specifications and dimensions of the dispersing rod 3 or the conveyor head cover 8 change, their swing angle will also change accordingly.

[0033] This utility model also provides a feeding mechanism, including a belt conveyor 7, a belt conveyor head cover 8, and a material dispersing device inside the belt conveyor head cover 8. The belt conveyor head cover 8 is installed over the discharge end of the belt conveyor 7, and its lower end is connected to the feed inlet of the screening machine. In actual operation, the belt conveyor 7 transports the crushed limestone into the belt conveyor head cover 8. The material dispersing device inside the belt conveyor head cover 8 disperses the falling material, making the material more evenly distributed in the belt width direction. Then, the material enters the feed inlet of the screening machine through the lower end of the belt conveyor head cover 8 and enters the screening machine for screening. Due to the improved material dispersion, the problem of local material accumulation in the screening machine is solved, the screening efficiency of the screening machine is improved, and the entire screening system does not need to consume too much electrical energy to maintain operation, achieving energy saving and emission reduction, while saving production costs for enterprises.

[0034] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including the combination of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A material dispersing device inside the head cover of a belt conveyor, characterized in that, include: Support assembly (1) is located on top of the conveyor head cover (8); The pivot (2) rotates through the support assembly (1); The dispersing rod (3) is fixedly connected at one end to the rotating shaft (2), and the other end moves through the top of the conveyor head cover (8) and extends to the material falling area near the unloading end of the conveyor (7); The first connecting rod (4) is fixedly connected at one end to the rotating shaft (2); The second link (5) is rotatably connected at one end to the other end of the first link (4); The drive component (6) is located on the side of the support component (1). The output end of the drive component (6) is rotatably connected to the other end of the second connecting rod and is used to drive the dispersing rod (3) to swing back and forth.

2. The material dispersing device inside the belt conveyor head cover according to claim 1, characterized in that, The driving component (6) includes: Rotating component (61); A rotating plate (62) is fixedly connected at its center to the output shaft of the rotating assembly (61); The connecting column (63) is located on the side of the rotating plate (62) away from the rotating assembly (61) and is located near the edge of the rotating plate (62).

3. The material dispersing device inside the belt conveyor head cover according to claim 2, characterized in that, The rotating assembly (61) includes a drive motor (611) and a reducer (612) disposed at the output end of the drive motor (611).

4. The material dispersing device inside the belt conveyor head cover according to claim 3, characterized in that, The support assembly (1) includes two opposing rolling bearings (11), through which the shaft (2) passes.

5. The material dispersing device inside the belt conveyor head cover according to claim 4, characterized in that, The top of the conveyor head cover (8) has a limiting opening, and the limiting opening is located between the two rolling bearings (11).

6. The material dispersing device inside the belt conveyor head cover according to claim 5, characterized in that, The limiting opening is set as a rectangular opening of 80mm×50mm.

7. The material dispersing device inside the belt conveyor head cover according to claim 1, characterized in that, The length of the dispersing rod (3) inside the conveyor head cover (8) is 300mm longer than the height of the upper shell of the conveyor head cover (8).

8. The material dispersing device inside the belt conveyor head cover according to claim 1, characterized in that, The reciprocating swing angle of the dispersing rod (3) is 50°.

9. A feeding mechanism, characterized in that, include: Belt conveyor (7); A conveyor head cover (8) is installed on the unloading end of the conveyor belt (7); The material dispersing device inside the belt conveyor head cover (8) as described in any one of claims 1-8.

10. The feeding mechanism according to claim 9, characterized in that, The lower end of the belt conveyor head cover (8) is connected to the feed inlet of the screening machine.

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