A conveying device for coal production and processing

Abstract

The present invention relates to the technical field of coal conveying, and discloses a conveying device for coal production and processing, including a conveyor belt, a driving roller arranged on one side of the conveyor belt, a plurality of support frames arranged in the middle of the conveyor belt, a mounting plate arranged in the middle of the support frames, a plurality of driving rollers arranged in a V-shaped distribution on the top of the support frames, the conveyor belt drives the driving rollers to rotate through friction, and further includes driving components arranged on both sides of the middle driving roller, and two vibration components arranged in the middle of the two driving components. By arranging the vibration components, the uniformity of coal can be optimized. Through continuous vibration, the piled-up state of coal can be broken, and the coal can be evenly spread on the conveyor belt. Especially when the coal volume is large, enhancing the vibration can quickly disperse the piled-up coal, avoid local over-thickness or over-thinness, ensure the stability of subsequent processes such as screening, washing, and combustion, and improve the overall processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of coal conveying, and particularly to a conveying device for coal production and processing. Background Art

[0002] In the conveying link of coal production and processing, the uniform distribution of coal on the conveyor belt is the key to ensuring the efficient operation of subsequent processes. However, affected by factors such as the particle characteristics of coal itself, the running speed of the conveyor belt, and uneven loading, coal is prone to accumulate during the conveying process. This kind of accumulation will not only cause coal to spill during conveying, resulting in material waste, but also make the coal on the conveyor belt too thick or too thin locally, directly affecting the stability of subsequent processes such as screening, washing, and combustion. For example, the accumulated coal will make it difficult for the screening equipment to accurately separate impurities and reduce the screening efficiency; in the combustion scenario, unevenly distributed coal will lead to unstable heat release, affecting the combustion efficiency and energy utilization rate.

[0003] Currently, most coal conveying devices are equipped with vibration devices to improve the coal distribution problem, but generally adopt a fixed vibration mode. This mode has significant defects: when the coal accumulation is large, the vibration intensity of the fixed amplitude is insufficient to quickly disperse the accumulated coal and it is difficult to meet the requirements of efficient operation; when the coal conveying volume is small, the equipment still vibrates at a fixed intensity, resulting in energy waste. In addition, the existing equipment lacks the ability to adaptively adjust to changes in coal volume and cannot dynamically adjust the vibration amplitude according to the real-time coal volume. If relying on manual monitoring and adjustment, it will increase labor costs, which is contrary to the trend of industrial automated production. Summary of the Invention

[0004] In view of the problem in the prior art that the existing equipment lacks the ability to adaptively adjust to changes in coal volume and cannot dynamically adjust the vibration amplitude according to the real-time coal volume, a conveying device for coal production and processing is proposed.

[0005] Its purpose is: when the coal volume increases, the device automatically increases the vibration amplitude to quickly spread out the accumulated coal; when the coal volume is small, it maintains a reasonable vibration intensity to avoid energy waste.

[0006] The technical solution of the present invention is a conveying device for coal production and processing, including a conveyor belt, a driving roller arranged on one side of the conveyor belt, several support frames arranged in the middle of the conveyor belt, a mounting plate arranged in the middle of the support frames, several drive rollers distributed in a V shape arranged on the top of the support frames, the conveyor belt drives the drive rollers to rotate through friction, and further includes drive components arranged on both sides of the middle drive roller, and two vibration components arranged in the middle of the two drive components;

[0007] The drive component is used to drive the vibration component to vibrate the conveyor belt;

[0008] The vibration component includes a vibration assembly disposed on the top of the mounting plate and an amplitude switching assembly disposed on the vibration assembly;

[0009] The vibration assembly includes side plates disposed on the top of the mounting plate, a rotating rod disposed on the side plates, a first bump disposed on the rotating rod, an arched plate disposed on the top of the mounting plate, a vibrating rod disposed on the arched plate, a fixed rod disposed on one side of the vibrating rod, a lifting wheel disposed on one side of the fixed rod, the first bump abuts against the lifting wheel, a vibrating plate disposed on the tops of the two vibrating rods, and a reset assembly disposed between the vibrating rod and the arched plate.

[0010] Further, the reset assembly includes a reset spring disposed inside the arched plate, a circular rod disposed on the top of the reset spring, and the top of the circular rod is fixedly connected to the vibrating rod, and the vibrating rod is limited to slide inside the arched plate by the limiting blocks on both sides.

[0011] Further, the driving component includes a connecting rod disposed inside the middle transmission roller, a driving wheel disposed on one side of the connecting rod, a belt disposed on the driving wheel, a driven wheel disposed on one side of the belt, and the driven wheel is fixedly connected to the rotating rod.

[0012] Further, the amplitude switching assembly includes a second bump disposed on one side of the first bump, switching inclined surfaces opened on both sides of the first bump, baffles symmetrically disposed on both sides of the second bump, a limiting strip disposed in the middle of the first bump and the second bump, and the limiting strip is limited to slide on the rotating rod, a switching spring disposed on the other side of the first bump, a circular plate disposed on one side of the switching spring, the circular plate is fixedly connected to the rotating rod, and the first bump and the second bump are elliptical.

[0013] Further, the first bump and the second bump are arranged in a "cross" shape, and the switching inclined surfaces are disposed on both sides of the first bump with the largest diameter.

[0014] Further, the distance between the two points with the largest diameter of the first bump is greater than the distance between the two points with the smallest diameter of the second bump, and the distance between the two points with the largest diameter of the first bump is less than the distance between the two points with the largest diameter of the second bump.

[0015] Further, strip-shaped protrusions are evenly distributed on both sides of the second bump with a wider diameter.

[0016] Further, the vibrating plate is in a U shape matching the conveyor belt, and vibrating strips are evenly arranged on the vibrating plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The uniformity of coal can be optimized by the set vibration components. Through continuous vibration, the piled state of coal can be broken, and the coal can be evenly spread on the conveyor belt. Especially when the coal volume is large, enhancing the vibration can quickly disperse the piled coal, avoid local over-thickness or under-thickness, ensure the stability of subsequent screening, washing, combustion and other processes, and improve the overall processing efficiency.

[0019] 2. The rotation range of the second bump is larger, which makes the amplitude of the vibration rod being lifted larger, and the vibration amplitude of the conveyor belt larger, so as to realize the rapid vibration and spreading of the place with more piled coal. The device automatically adjusts the vibration amplitude according to the coal volume. The larger the coal volume, the stronger the vibration, forming a "dynamic response" mechanism. This targeted operation can not only efficiently handle the piled coal, but also avoid energy waste under the fixed vibration mode, maximizing the dispersion effect while saving energy.

[0020] 3. The vibration bars on the vibration plate are used to extrude and vibrate the bottom and side walls of the conveyor belt, so that all parts of the conveyor belt can be vibrated, and the speed of the uniform distribution of the piled coal is accelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structure schematic diagram of the whole of the present invention;

[0022] Figure 2 is a schematic diagram of the overall structure of the driving component and the vibration component on the support frame of the present invention;

[0023] Figure 3 is a three-dimensional structure schematic diagram of the vibration component of the present invention;

[0024] Figure 4 is an enlarged schematic diagram of the overall structure of the driving component and the vibration component of the present invention;

[0025] Figure 5 is a schematic diagram of the overall structure of the vibration assembly of the present invention;

[0026] Figure 6 is a schematic diagram of the internal decomposition structure of the vibration assembly of the present invention;

[0027] Figure 7 is a three-dimensional structure schematic diagram of the amplitude switching assembly of the present invention;

[0028] Figure 8 is a three-dimensional structure schematic diagram of the first bump and the second bump of the present invention;

[0029] Figure 9 is a front structure schematic diagram of the first bump and the second bump of the present invention;

[0030] Figure 10 is a back structure schematic diagram of the first bump and the second bump of the present invention;

[0031] Figure 11 This is a schematic exploded view of the transmission roller and the connecting rod of the present invention.

[0032] In the figure:

[0033] 1. Conveyor belt; 11. Driving roller; 12. Support frame; 13. Mounting plate; 14. Transmission roller; 2. Vibration assembly; 21. Side plate; 22. Rotating rod; 23. First convex block; 24. Arch-shaped plate; 25. Vibration rod; 26. Fixed rod; 27. Lifting wheel; 28. Vibration plate; 3. Reset assembly; 31. Reset spring; 32. Circular rod; 4. Driving component; 41. Connecting rod; 42. Driving wheel; 43. Belt; 44. Driven wheel; 5. Amplitude switching assembly; 51. Second convex block; 52. Switching inclined plane; 53. Baffle; 54. Limiting strip; 55. Switching spring; 56. Circular plate; 6. Strip-shaped protrusion; 7. Vibration strip. Specific embodiments

[0034] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the specification.

[0035] Example 1, referring to Figures 1-11 , which is the first embodiment of the present invention, provides a conveying device for coal production and processing, including a conveyor belt 1, a driving roller 11 installed on one side of the conveyor belt 1, a plurality of support frames 12 installed in the middle of the conveyor belt 1, a mounting plate 13 installed in the middle of the support frames 12, a plurality of transmission rollers 14 distributed in a V shape installed on the top of the support frames 12. The conveyor belt 1 drives the transmission rollers 14 to rotate through friction under the action of the gravity of the coal. It also includes driving components 4 installed on both sides of the middle transmission roller 14, and two vibration components installed in the middle of the two driving components 4; the driving components 4 are used to drive the vibration components to vibrate the conveyor belt 1; the vibration components include a vibration assembly 2 installed on the top of the mounting plate 13, and an amplitude switching assembly 5 installed on the vibration assembly 2; the vibration assembly 2 includes a side plate 21 fixedly connected to the top of the mounting plate 13, a rotating rod 22 rotatably connected to the side plate 21, a first convex block 23 connected to the rotating rod 22 in a limiting and sliding manner, an arch-shaped plate 24 fixedly connected to the top of the mounting plate 13, a vibration rod 25 connected to the arch-shaped plate 24 in a limiting and sliding manner, a fixed rod 26 fixedly connected to one side of the vibration rod 25, a lifting wheel 27 rotatably connected to one side of the fixed rod 26, the first convex block 23 abuts against the lifting wheel 27, a vibration plate 28 fixedly connected to the tops of the two vibration rods 25, and a reset assembly 3 installed between the vibration rod 25 and the arch-shaped plate 24.

[0036] Specifically, when transporting coal, the driving roller 11 is driven by a motor to rotate, thereby driving the conveyor belt 1 to rotate. The coal on the conveyor belt 1 presses against the conveyor belt 1, causing the conveyor belt 1 to drive the transmission roller 14 to rotate. After the transmission roller 14 rotates, it drives the driving component 4 to rotate, and the driving component 4 drives the vibrating component to vibrate, vibrating the coal on the conveyor belt 1 evenly to avoid coal accumulation. After the rotating rod 22 is driven by the driving component 4 to rotate, the rotating rod 22 drives the first convex block 23 to rotate. When the first convex block 23 rotates, it pushes the jacking wheel 27 at the top to move up and down. The jacking wheel 27 moves up and down, causing the vibrating plate 28 to continuously strike the conveyor belt 1, realizing the vibration of the coal on the conveyor belt 1, making it evenly distributed on the conveyor belt 1, and avoiding coal accumulation at a certain place on the conveyor belt 1, resulting in coal spillage during the conveying process. It can optimize the uniformity of the coal. Through continuous vibration, the accumulated state of the coal can be broken, and the coal can be evenly spread on the conveyor belt 1. Especially when the coal volume is large, enhancing the vibration can quickly disperse the accumulated coal, avoid local over-thickness or over-thinness, ensure the stability of subsequent screening, washing, combustion and other processes, and improve the overall processing efficiency.

[0037] Refer to Figures 1-6 , the reset assembly 3 includes a reset spring 31 fixedly connected inside the arched plate 24, a circular rod 32 fixedly connected to the top of the reset spring 31, and the top of the circular rod 32 is fixedly connected to the vibrating rod 25. The vibrating rod 25 is limited to slide inside the arched plate 24 through the limiting blocks on both sides.

[0038] Specifically, when the first convex block 23 pushes the jacking wheel 27 and the vibrating rod 25 to move upward, at this time the reset spring 31 is stretched. The reset spring 31 is used to realize that the vibrating rod 25 can reset and move downward after being pushed upward, realizing the continuous striking and vibrating effect. The vibrating rod 25 is limited to slide inside the arched plate 24, which can improve its stability during the vibration process.

[0039] Refer to Figures 1-4 and Figure 11 , the driving component 4 includes a connecting rod 41 fixedly connected inside the middle transmission roller 14, a driving wheel 42 fixedly connected to one side of the connecting rod 41, a belt 43 drivingly connected to the driving wheel 42, and a driven wheel 44 drivingly connected to one side of the belt 43. The driven wheel 44 is fixedly connected to the rotating rod 22.

[0040] Specifically, when the driving roller 14 rotates, it drives the connecting rod 41 and the driving wheel 42 to rotate. The driven wheel 44 is driven to rotate by the belt 43. Due to the extrusion of the coal on the belt 43, the belt 43 drives the driving roller 14 to rotate, realizing the transmission of power without additional power. The structure is simple and the cost is low. Moreover, the more coal there is, the greater its gravity, making the power transmission effect of the driving roller 14 on the driving wheel 42 better, thus making the vibration effect better. It has a positive feedback adjustment function, making the distribution of coal more uniform. Avoiding the situation where after coal accumulates in a certain place, the extrusion force between the conveyor belt 1 and the driving roller 14 becomes greater and the wear is greater, effectively improving the service life of the conveyor belt 1.

[0041] Embodiment 2, referring to Figures 1-7 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the amplitude switching assembly 5 includes a second convex block 51 fixedly connected to one side of the first convex block 23, switching inclined surfaces 52 opened on both sides of the first convex block 23, baffles 53 symmetrically and fixedly connected to the side of the second convex block 51, a limiting strip 54 fixedly connected to the middle of the first convex block 23 and the second convex block 51, and the limiting strip 54 is slidably limited on the rotating rod 22, a switching spring 55 abutted against the other side of the first convex block 23, a circular plate 56 fixedly connected to one side of the switching spring 55, the circular plate 56 is fixedly connected to the rotating rod 22, and the first convex block 23 and the second convex block 51 are elliptical.

[0042] Specifically, when there is more coal at a certain place on the conveyor belt 1, since there is a certain distance between two adjacent driving rollers 14 at this time, the conveyor belt 1 located between the adjacent driving rollers 14 will be sunken after being squeezed by the coal. The more coal there is, the larger the depression is, and the greater the extrusion and moving distance of the vibrating plate 28 is. When the jacking wheel 27 rotates to the switching inclined surface 52 on the first convex block 23, it will slide along the switching inclined surface 52 to the second convex block 51. At this time, the first convex block 23 is extruded and moved, and the first convex block 23 compresses the switching spring 55. The second convex block 51 continues to rotate and drives the jacking wheel 27 to rotate. At this time, the rotation range of the second convex block 51 is larger, so that the amplitude of the vibrating rod 25 being jacked up is larger, and the vibration amplitude of the conveyor belt 1 is larger. Thus, rapid vibration and spreading of the place with more accumulated coal are realized. The device automatically adjusts the vibration amplitude according to the coal quantity. The larger the coal quantity is, the stronger the vibration is, forming a "dynamic response" mechanism. This targeted operation can not only efficiently handle the accumulated coal, but also avoid energy waste in the fixed vibration mode, maximize the dispersion effect while saving energy, and there is no need for manual real-time monitoring of the coal quantity and adjustment of the equipment, reducing the labor input, meeting the requirements of industrial automation production, and improving the overall intelligent level of the operation. The setting of the baffle 53 makes it difficult for the jacking wheel 27 to easily move away from the second convex block 51 and enter the first convex block 23 when it enters the second convex block 51. When the accumulated coal place is evenly distributed by vibration, both the first convex block 23 and the second convex block 51 are reset, so that the jacking wheel 27 can only move out from the switching inclined surface 52, avoiding the jacking wheel 27 directly moving out from the larger diameter part of the second convex block 51, which may cause the sudden downward movement of the vibrating rod 25, and then the conveyor belt 1 drives the coal to directly fall a certain distance, avoiding unstable vibration of the conveyor belt 1.

[0043] Refer to Figures 8-10 , the first convex block 23 and the second convex block 51 are arranged in a "cross" shape, and the switching inclined surface 52 is arranged on both sides of the largest diameter of the first convex block 23.

[0044] Specifically, the "cross" design enables a relatively large increase in the vibration amplitude, and the design of the switching inclined surface 52 is used to achieve the switching of the amplitude.

[0045] Refer to Figures 9-10 , the distance between the two points of the largest diameter of the first convex block 23 is greater than the distance between the two points of the smallest diameter of the second convex block 51, and the distance between the two points of the largest diameter of the first convex block 23 is less than the distance between the two points of the largest diameter of the second convex block 51.

[0046] Specifically, the distance between the two points of the largest diameter of the first convex block 23 being greater than the distance between the two points of the smallest diameter of the second convex block 51 enables the jacking wheel 27 to move along the switching inclined surface 52 to the second convex block 51. The distance between the two points of the largest diameter of the first convex block 23 being less than the distance between the two points of the largest diameter of the second convex block 51 makes the vibration amplitude larger when the second convex block 51 is jacked up.

[0047] Refer toFigure 9 , strip-shaped protrusions 6 are evenly distributed on both sides of the wider diameter of the second protrusion 51.

[0048] Specifically, the arrangement of the strip-shaped protrusions 6 increases the amplitude of vibration when the protrusion 2 51 is driving the vibration, thereby improving the vibration effect and further accelerating the uniform distribution of the deposited coal.

[0049] Reference Figure 4 The vibration plate 28 is in a U-shape matching the conveyor belt 1 , and the vibration bars 7 are evenly and fixedly connected to the vibration plate 28 .

[0050] Specifically, the vibration strips 7 on the vibration plate 28 are used to perform extrusion vibration on the bottom and side walls of the conveyor belt 1, so that all parts of the conveyor belt 1 can be vibrated, thereby accelerating the speed of uniform distribution of the accumulated coal. The remaining structure is the same as that of the first embodiment.

[0051] Based on the embodiments 1-2, the working principle of the present invention is as follows: when transporting coal, the driving roller 11 is driven to rotate by the motor, thereby driving the conveyor belt 1 to rotate, and the coal on the conveyor belt 1 squeezes the conveyor belt 1, so that the conveyor belt 1 drives the transmission roller 14 to rotate, and the transmission roller 14 drives the driving component 4 to rotate after the rotation, and the driving component 4 drives the vibration component to vibrate, so that the coal on the conveyor belt 1 is vibrated evenly to avoid coal accumulation. After the rotating rod 22 is driven to rotate by the driving component 4, the rotating rod 22 drives the protrusion 1 23 to rotate, and when the protrusion 1 23 rotates, it pushes the top lifting wheel 27 to move up and down, and the lifting wheel 27 moves up and down, so that the vibration plate 28 continuously hits the conveyor belt 1, realizes the vibration of the coal on the conveyor belt 1, and evenly distributes it on the conveyor belt 1, and avoids the coal from accumulating somewhere on the conveyor belt 1, causing the coal to spill during the transportation process. The uniformity of the coal can be optimized, and the coal accumulation state can be broken by continuous vibration, so that the coal can be evenly spread on the conveyor belt 1. Especially when the amount of coal is large, enhanced vibration can quickly disperse the accumulated coal and avoid local excessive thickness or thinness, ensuring the stability of subsequent screening, washing, combustion and other processes and improving overall processing efficiency.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A conveying device for coal production and processing, comprising a conveyor belt, a driving roller arranged on one side of the conveyor belt, a plurality of support frames arranged in the middle of the conveyor belt, a mounting plate arranged in the middle of the support frames, and a plurality of V-shaped transmission rollers arranged on the top of the support frames, wherein the conveyor belt drives the transmission rollers to rotate by friction, and is characterized in that: It also includes driving components arranged on both sides of the middle transmission roller, and two vibrating components arranged in the middle of the two driving components; The driving component is used to drive the vibrating component to vibrate the conveyor belt; The vibration component includes a vibration assembly arranged on the top of the mounting plate, and an amplitude switching assembly arranged on the vibration assembly; The vibration assembly includes a side plate arranged on the top of the mounting plate, a rotating rod arranged on the side plate, a convex block 1 arranged on the rotating rod, an arched plate arranged on the top of the mounting plate, a vibration rod arranged on the arched plate, a fixed rod arranged on one side of the vibration rod, a jacking wheel arranged on one side of the fixed rod, a convex block 1 abutting against the jacking wheel, a vibration plate arranged on the top of the two vibration rods, and a reset assembly arranged between the vibration rod and the arched plate; The amplitude switching assembly includes a protrusion 2 arranged on one side of the protrusion 1, a switching inclined surface opened on both sides of the protrusion 1, a baffle symmetrically arranged on the sides of the protrusion 2, a limit bar arranged in the middle of the protrusion 1 and the protrusion 2, and the limit bar is limited and slid on the rotating rod, a switching spring arranged on the other side of the protrusion 1, and a circular plate arranged on one side of the switching spring, the circular plate is fixedly connected to the rotating rod, and the protrusion 1 and the protrusion 2 are elliptical; The first and second protrusions are arranged in a "cross" shape, and the switching slopes are arranged on the two sides of the first protrusion with the largest diameter.

2. The conveying equipment for coal production and processing according to claim 1 is characterized in that: The reset assembly includes a reset spring arranged inside the arch plate, a round rod arranged on the top of the reset spring, and the top of the round rod is fixedly connected to the vibration rod, and the vibration rod slides in the arch plate through limit blocks on both sides.

3. The conveying equipment for coal production and processing according to claim 1, characterized in that: The driving component includes a connecting rod arranged in the middle transmission roller, a driving wheel arranged on one side of the connecting rod, a belt arranged on the driving wheel, and a driven wheel arranged on one side of the belt, and the driven wheel is fixedly connected to the rotating rod.

4. The conveying equipment for coal production and processing according to claim 1 is characterized in that: The connecting distance between the two points at the maximum diameter of the first bump is greater than the connecting distance between the two points at the minimum diameter of the second bump, and the connecting distance between the two points at the maximum diameter of the first bump is less than the connecting distance between the two points at the maximum diameter of the second bump.

5. The conveying equipment for coal production and processing according to claim 1, characterized in that: The two sides of the second protrusion with a wider diameter are evenly distributed with strip-shaped protrusions.

6. The conveying equipment for coal production and processing according to claim 1, characterized in that: The vibration plate is in a U shape matching the conveyor belt, and vibration strips are evenly arranged on the vibration plate.

Images