Belt conveyor overlap guide device

Abstract

The present invention provides a guide device for the overlap of a belt conveyor, comprising a modular buffer bin, a mud receiving trough, a mounting frame and a bottom bracket: the buffer bin and the mud receiving trough are detachably connected and detachably mounted on the mounting frame, the bottom bracket is detachably mounted on the mounting frame, and the bottom bracket carries the buffer bin; the mud receiving trough is connected to the output end of a belt conveyor, the output material enters the buffer bin along the mud receiving trough, the direction in which the material enters the buffer bin is a first direction, the buffer bin has a bottom plate and a discharge port, the direction of the discharge port is a second direction, the bottom plate is inclined relative to the first direction and the second direction, the bottom plate is used to receive and buffer the input material and guide the material to be output from the discharge port, and the material output from the discharge port enters the input end of another belt conveyor. The modular design does not require hot work during underground installation, and the installation can be completed by directly splicing, which enhances flexibility and can adjust or replace components according to different transportation needs and working conditions.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine machinery, and in particular to a flow guiding device at an overlap of a belt conveyor. Background Art

[0002] Belt conveyors are the most commonly used equipment in coal mines due to their long conveyor lines, many overlaps, and high conveyor belt running speeds. However, when the overlapped conveyor belts pass through the overlaps, the impact of the materials can easily damage the conveyor belt surface and the steel wire rope core, requiring frequent maintenance of the conveyor belts, reducing their service life and affecting normal production. Therefore, buffer bins need to be designed at the overlaps to avoid these problems.

[0003] In the prior art, the direct dropping method, the iron shielding method and the unloading platform method all require a large amount of hot work to be carried out underground, and underground safety is difficult to ensure. Summary of the invention

[0004] The invention provides a flow guiding device at the overlap of a belt conveyor, so as to solve the problem that hot work is required for processing a buffer bin in the prior art.

[0005] In order to solve the above problems, the present invention provides a flow guide device at the overlap of a belt conveyor, comprising a modular buffer bin, a mud receiving trough, a mounting frame and a bottom bracket: the buffer bin and the mud receiving trough are detachably connected, and the buffer bin and the mud receiving trough can be detachably mounted on the mounting frame, the bottom bracket can be detachably mounted on the mounting frame, and the bottom bracket carries the buffer bin; wherein, the mud receiving trough is connected to the output end of a belt conveyor, and the material output by the belt conveyor enters the buffer bin along the mud receiving trough, and the direction in which the material is input into the buffer bin is a first direction, the buffer bin has a bottom plate and a discharge port, the direction of the discharge port is a second direction, the bottom plate is inclined relative to the first direction and the second direction, the bottom plate is used to receive and buffer the input material and guide the material to be output from the discharge port, and the material output from the discharge port enters the input end of another belt conveyor.

[0006] Furthermore, the buffer bin also includes a first side plate, a second side plate and a third side plate which are sequentially arranged around the bottom plate, the opening between the first side plate and the third side plate faces the mud receiving trough, and the discharge port is located at the third side plate.

[0007] Furthermore, the first side panel, the second side panel and the third side panel are all connected via fasteners and a mounting frame, and the first side panel and the third side panel are detachably connected via a splicing plate and a mud receiving groove, respectively.

[0008] Furthermore, the buffer bin also includes a plurality of reinforcing beams, which are fixed on the lower side of the bottom plate to support the bottom plate; the reinforcing beams and the bottom bracket are detachably connected.

[0009] Furthermore, the inclination angle of the bottom plate relative to the horizontal plane is 30° to 36°.

[0010] Furthermore, the mud receiving trough includes a first baffle, a second baffle, a third baffle and a fourth baffle. The first baffle and the second baffle are arranged opposite to each other and connected to the buffer bin. The third baffle is connected to the lower sides of the first baffle and the second baffle. The fourth baffle is connected to the lower side of the second baffle, the third baffle and the bottom plate.

[0011] Furthermore, the mounting frame includes a supporting structure and a plurality of vertical beams, the plurality of vertical beams are arranged around the buffer bin, the supporting structure is fixed to the top of the plurality of vertical beams, and the buffer bin and the mud receiving trough are respectively detachably connected to the supporting structure.

[0012] Furthermore, the supporting structure includes a first supporting beam, a second supporting beam and a third supporting beam connected in sequence, and a plurality of connecting beams are fixed on the first supporting beam, the second supporting beam and the third supporting beam, and the connecting beams and the buffer bin or the mud receiving trough are detachably connected.

[0013] Furthermore, the bottom bracket includes a frame structure and at least two oblique support beams arranged on the frame structure, and the oblique support beams are detachably connected to the bottom of the buffer bin.

[0014] Furthermore, the frame structure includes multiple lower cross beams, multiple upper cross beams and multiple bottom support beams. The lower cross beams are detachably connected to the mounting frame, the upper cross beams are installed on the lower cross beams and are perpendicular to the lower cross beams, the lower end of the bottom support beam is fixedly connected to the upper cross beam, and the upper end of the bottom support beam is fixedly connected to the oblique support beam.

[0015] By applying the technical solution of the present invention, a flow guiding device for the overlapping part of a belt conveyor is provided, comprising a modular buffer bin, a mud receiving trough, a mounting frame and a bottom bracket: the buffer bin and the mud receiving trough are detachably connected, and both the buffer bin and the mud receiving trough can be detachably mounted on the mounting frame, the bottom bracket can be detachably mounted on the mounting frame, and the bottom bracket carries the buffer bin; wherein, the mud receiving trough is connected to the output end of a belt conveyor, and the material output by the belt conveyor enters the buffer bin along the mud receiving trough, and the direction in which the material is input into the buffer bin is a first direction, the buffer bin has a bottom plate and a discharge port, and the direction of the discharge port is a second direction, the bottom plate is inclined relative to the first direction and the second direction, the bottom plate is used to receive and buffer the input material and guide the material to be output from the discharge port, and the material output from the discharge port enters the input end of another belt conveyor.

[0016] In this scheme, the main function of the buffer bin is to buffer the materials from the belt conveyor to prevent impact and overflow caused by excessive or uneven material input. The mud receiving trough is detachably connected to the buffer bin and docked with the output end of the belt conveyor, which can effectively receive the materials transported from the belt conveyor and import them into the buffer bin, avoiding the waste and pollution caused by the direct drop or splash of the materials from the conveyor belt, and also reducing the impact force caused by the free fall of the materials, protecting other equipment and conveyor belts. The bottom plate is inclined relative to the first direction and the second direction, so that the materials can be effectively guided and transitioned in the buffer bin to avoid accumulation or blockage, thereby ensuring that the materials flow smoothly into the next conveyor, avoiding overflow or waste caused by the materials staying in the buffer bin, and reducing equipment damage and improving the operating efficiency of the system. As a supporting structure, the bottom bracket can effectively bear the weight of the buffer bin and the impact force of the materials. The detachable design not only simplifies the installation and maintenance process, but also ensures that the buffer bin maintains a stable working state during long-term use, avoiding structural deformation or failure caused by unstable support. In this solution, since the buffer bin, mud trough, mounting frame and bottom bracket are all modularly designed, there is no need for hot work during underground installation, and installation can be completed by direct splicing, which enhances flexibility and allows adjustments or replacement of components according to different transportation needs and working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 The three-dimensional diagram of the guide device at the overlap of the belt conveyor provided by the embodiment of the present invention is shown. Figure 1 ;

[0019] Figure 2 The three-dimensional diagram of the guide device at the overlap of the belt conveyor provided by the embodiment of the present invention is shown. Figure 2 ;

[0020] Figure 3 The three-dimensional diagram of the guide device at the overlap of the belt conveyor provided by the embodiment of the present invention is shown. Figure 3 ;

[0021] Figure 4 A front view of a flow guiding device at a joint of a belt conveyor provided by an embodiment of the present invention is shown;

[0022] Figure 5 A side view of a flow guiding device at a joint of a belt conveyor provided by an embodiment of the present invention is shown;

[0023] Figure 6 A schematic structural diagram of a mounting frame and a bottom bracket of a flow guiding device at a belt conveyor overlap provided by an embodiment of the present invention is shown;

[0024] Figure 7 A schematic structural diagram of a bottom bracket of a flow guiding device at a belt conveyor overlap provided by an embodiment of the present invention is shown;

[0025] Figure 8 A cross-sectional view of a belt conveyor conveying material is shown.

[0026] The above drawings include the following reference numerals:

[0027] 10. Buffer bin; 11. First side plate; 12. Second side plate; 13. Third side plate; 14. Reinforcement beam;

[0028] 20. Mud receiving trough; 21. First baffle; 22. Second baffle;

[0029] 30. Discharge port;

[0030] 40. bottom bracket; 41. frame structure; 411. lower cross beam; 412. upper cross beam; 413. bottom support beam; 42. oblique support beam;

[0031] 50. Overlapped conveyor belt;

[0032] 60. Mounting frame; 61. Support structure; 611. First support beam; 612. Second support beam; 613. Third support beam; 614. Connecting beam; 62. Vertical beam; 70. Bottom plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 7As shown, an embodiment of the present invention provides a flow diversion device at the overlap of a belt conveyor, comprising a modular buffer bin 10, a mud receiving trough 20, a mounting frame 60 and a bottom bracket 40: the buffer bin 10 and the mud receiving trough 20 are detachably connected, and both the buffer bin 10 and the mud receiving trough 20 can be detachably mounted on the mounting frame 60, the bottom bracket 40 can be detachably mounted on the mounting frame 60, and the bottom bracket 40 carries the buffer bin 10; wherein, the mud receiving trough 20 is connected to the output end of a belt conveyor, and the material output by the belt conveyor enters the buffer bin 10 along the mud receiving trough 20, and the direction in which the material is input into the buffer bin 10 is a first direction, the buffer bin 10 has a bottom plate 70 and a discharge port 30, and the direction of the discharge port 30 is a second direction, the bottom plate 70 is inclined relative to the first direction and the second direction, the bottom plate 70 is used to receive and buffer the input material and guide the material to be output from the discharge port 30, and the material output from the discharge port 30 enters the input end of another belt conveyor. And the bottom plate 70 is located above the overlapped conveyor belt 50 .

[0035] In this embodiment, the main function of the buffer bin 10 is to buffer the materials from the belt conveyor to prevent impact and overflow caused by excessive or uneven material input. The mud receiving trough 20 is detachably connected to the buffer bin 10 and docked with the output end of the belt conveyor, which can effectively receive the materials transported from the belt conveyor and introduce them into the buffer bin 10, avoiding the waste and pollution caused by the direct drop or splash of the materials from the conveyor belt, while also reducing the impact force caused by the free fall of the materials, protecting other equipment and the conveyor belt. The bottom plate 70 is inclined relative to the first direction and the second direction, so that the materials can be effectively guided and transitioned in the buffer bin 10 to avoid accumulation or blockage, thereby ensuring that the materials flow smoothly into the next conveyor, avoiding overflow or waste caused by the materials staying in the buffer bin 10, and can also reduce equipment damage and improve the operating efficiency of the system. The bottom bracket 40, as a supporting structure 61, can effectively bear the weight of the buffer bin 10 and the impact force of the material. The detachable design not only simplifies the installation and maintenance process, but also ensures that the buffer bin 10 maintains a stable working state during long-term use, avoiding structural deformation or failure caused by unstable support. In this solution, since the buffer bin 10, the mud receiving trough 20, the mounting frame 60 and the bottom bracket 40 are all modularly designed, when installing underground, there is no need for hot work, and the installation can be completed by directly splicing, which enhances flexibility and can adjust or replace components according to different transportation needs and working conditions.

[0036] Optionally, the direction of the discharge port 30 is the same as the material conveying direction of another belt conveyor corresponding to the discharge port 30, so that the material output from the discharge port 30 enters the belt of the belt conveyor and continues to be conveyed directly along the material conveying direction of the belt conveyor, and the material will not cause a force to deflect to the left or right on the belt conveyor, which is conducive to a better buffering effect and protection of the belt. There is an angle between the direction of the discharge port 30 and the material conveying direction of the previous belt conveyor. Through the guide device at the overlap of the belt conveyor in this solution, the material is buffered and changed in direction, which better adapts to the material conveying of another belt conveyor.

[0037] The belt conveyor is used to transport the coal, and the mud receiving trough 20 can also receive mud formed by wet impurities in the coal.

[0038] Furthermore, the buffer bin 10 also includes a first side plate 11, a second side plate 12 and a third side plate 13 which are sequentially arranged around the bottom plate 70, the opening between the first side plate 11 and the third side plate 13 faces the mud receiving trough 20, and the discharge port 30 is located at the third side plate 13.

[0039] In this embodiment, the first side plate 11, the second side plate 12 and the third side plate 13 are arranged around the bottom plate 70, so that the material can be confined to a specific area of ​​the buffer bin 10, ensuring that the material does not flow or leak laterally in the buffer bin 10. When the material enters the buffer bin 10, it will flow along the inclined guiding effect of the bottom plate 70, and the side plate will play a limiting role, so that the material flows in a predetermined direction to avoid disorderly flow or accumulation. By setting an opening between the first side plate 11 and the third side plate 13, the material can flow smoothly from the mud receiving trough 20 into the buffer bin 10 without being blocked by material accumulation, optimizing the material inflow path and avoiding reverse flow or impact of the material. The discharge port 30 is located at the third side plate 13, so that the material can flow into the input end of the downstream equipment accurately, which is conducive to the efficient transfer of materials and ensures the load balance of the downstream belt conveyor, so that it will not stagnate or run unsteadily due to material backlog or flow fluctuation. Moreover, through the surrounding design of the first side panel 11, the second side panel 12, and the third side panel 13, the overall structure of the buffer bin 10 is more stable, which not only enhances the bearing capacity of the buffer bin 10, but also improves the impact resistance of the buffer bin 10 during use.

[0040] Furthermore, the first side panel 11 , the second side panel 12 and the third side panel 13 are all connected via fasteners and the mounting frame 60 , and the first side panel 11 and the third side panel 13 are detachably connected via a splicing plate and a mud receiving trough 20 , respectively.

[0041] In this embodiment, the first side panel 11, the second side panel 12 and the third side panel 13 are connected to the mounting frame 60 by fasteners to prevent the side panels from loosening or deforming due to material impact or vibration, and to maintain a stable structure. At the same time, components can be flexibly adjusted or replaced when necessary, so that the buffer bin 10 can adapt to a wider range of usage scenarios. The first side panel 11 and the third side panel 13 are connected to the mud receiving trough 20 by a splicing plate, and a detachable connection method is adopted, so that these two components can be quickly disassembled when they need to be inspected, replaced or cleaned, thereby reducing downtime and improving maintainability. If the buffer bin 10 accumulates material residues or is damaged during long-term use, the operator can check or replace the side panels by simply disassembling the splicing plate without dismantling the entire buffer bin 10 or removing other components that do not require maintenance, thereby simplifying the installation and disassembly process and increasing the service life.

[0042] Furthermore, the buffer bin 10 further includes a plurality of reinforcing beams 14 , which are fixed to the lower side of the bottom plate 70 to support the bottom plate 70 ; the reinforcing beams 14 and the bottom bracket 40 are detachably connected.

[0043] In this embodiment, a plurality of reinforcing beams 14 are fixed on the lower side of the bottom plate 70, which effectively enhances the bearing capacity of the bottom plate 70. When a large amount of material enters the buffer bin 10, the bottom plate 70 needs to withstand greater pressure and impact force. Without the support of the reinforcing beams 14, the bottom plate 70 may be deformed or damaged. The reinforcing beams 14 provide additional support, making the bottom plate 70 more stable when bearing the weight of the material, and avoiding the risk of bending or damage of the bottom plate 70. The reinforcing beams 14 not only support the bottom plate 70, but also enhance the structural stability of the entire buffer bin 10. In particular, when the material flow in the buffer bin 10 is large or the conveyor belt is frequently started and stopped, the impact force of the material will affect the stability of the buffer bin 10. The setting of the reinforcing beams 14 can effectively prevent structural deformation or loosening caused by impact force or vibration, and ensure that the buffer bin 10 remains stable during operation. Moreover, the detachable connection design of the reinforcing beams 14 and the bottom bracket 40 makes the maintenance of the entire buffer bin 10 more flexible and convenient. When maintenance, adjustment or replacement of the base plate 70, reinforcing beam 14 or bottom bracket 40 is required, the operator can quickly disassemble these components without disassembling the entire system, making the disassembly process simpler and faster, saving maintenance time and cost.

[0044] Furthermore, the inclination angle of the bottom plate 70 relative to the horizontal plane is 30° to 36°.

[0045] In this embodiment, the inclination angle of the bottom plate 70 relative to the horizontal plane enables the material to flow along the bottom plate 70 more easily, promotes the natural sliding of the material, reduces the possibility of the material stagnating or accumulating in the buffer bin 10, and improves the efficiency of transportation. For granular materials or block materials such as coal, if the bottom plate 70 is designed to be horizontal or nearly horizontal, the material may accumulate or stagnate in the bin, especially in the case of poor fluidity. The inclined design helps the material to flow smoothly at a higher flow rate, avoids the backlog or blockage of the material, and maintains the stability of the material flow in the buffer bin 10. Moreover, when the material enters the buffer bin 10, especially when the material has a high flow rate or impact force, the inclined bottom plate 70 can effectively help the material slow down and disperse the impact force. By guiding the material to flow in the inclined direction, the contact area between the material and the bottom plate 70 is increased, and the impact force is alleviated, thereby reducing the impact on the buffer bin 10 and other conveying equipment and reducing the risk of equipment damage. In addition, the inclination angle makes it easier for the material to slide along the bottom plate 70. Compared with the horizontal design, the inclined bottom plate 70 can reduce the friction of the material in the buffer bin 10 and extend the service life of the equipment.

[0046] Furthermore, the mud receiving trough 20 includes a first baffle 21, a second baffle 22, a third baffle and a fourth baffle. The first baffle 21 and the second baffle 22 are relatively arranged and connected to the buffer bin 10. The third baffle is connected to the lower sides of the first baffle 21 and the second baffle 22. The fourth baffle is connected to the lower side of the second baffle 22, the third baffle and the bottom plate 70.

[0047] In this embodiment, the design that the first baffle 21 and the second baffle 22 are arranged opposite to each other and docked with the buffer bin 10 helps to guide the material to flow into the buffer bin 10 along the correct path. When the material enters the mud receiving trough 20 from the conveyor belt, the first baffle 21 and the second baffle 22 can effectively limit the flow direction of the material through the structure of mutual cooperation, ensure the direction and position of the material entering the buffer bin 10, avoid the overflow or deviation of the material, and thus ensure the stability of the material entering the buffer bin 10. The third baffle is connected to the lower side of the first baffle and the second baffle 22, and the fourth baffle is connected to the first baffle 21, the second baffle 22 and the bottom plate 70, all of which provide stable support, increase the overall stability of the mud receiving trough 20, make the structure of the mud receiving trough 20 more stable, ensure that the mud receiving trough 20 will not be deformed or offset when the material flows in quickly, maintain a stable material transition channel, extend the service life, and reduce the maintenance frequency.

[0048] Furthermore, the mounting frame 60 includes a supporting structure 61 and a plurality of vertical beams 62 . The plurality of vertical beams 62 are arranged around the buffer bin 10 . The supporting structure 61 is fixed to the top of the plurality of vertical beams 62 . The buffer bin 10 and the mud receiving trough 20 are respectively detachably connected to the supporting structure 61 .

[0049] In this embodiment, the vertical beam 62, as the core component of the support structure 61, effectively bears the gravity, vibration and impact force of the material. The support structure 61 is fixed on the top of multiple vertical beams 62 to ensure the stability of the entire system and reduce shaking or deformation caused by factors such as material gravity and dynamic load. By fixedly connecting the support structure 61 with multiple vertical beams 62, it can be ensured that the buffer bin 10 and the mud receiving trough 20 have sufficient supporting force during use. Multiple vertical beams 62 are arranged around the buffer bin 10 to form a uniformly distributed support system, ensuring that the weight of the buffer bin 10 and the impact force of the material can be evenly distributed on each vertical beam 62, avoiding the problem of excessive local force, thereby enhancing the stability and durability of the structure. The detachable connection design of the support structure 61 with the buffer bin 10 and the mud receiving trough 20 makes the entire system more convenient and quick when maintenance, overhaul or cleaning is required, reduces the difficulty of maintenance, and improves the overall flexibility.

[0050] Furthermore, the support structure 61 includes a first support beam 611, a second support beam 612 and a third support beam 613 connected in sequence, and a plurality of connecting beams 614 are fixed on the first support beam 611, the second support beam 612 and the third support beam 613, and the connecting beams 614 and the buffer bin 10 or the mud receiving trough 20 are detachably connected.

[0051] In this embodiment, the first support beam 611, the second support beam 612, and the third support beam 613 are connected in sequence and multiple connecting beams 614 are arranged on each support beam, so that the weight of the buffer bin 10 and the mud receiving trough 20 can be evenly distributed to various parts of the support structure 61, which can better bear the weight of the material, avoid local excessive concentrated loads causing equipment deformation or instability, and reduce the risk of damage. The connecting beam 614 and the buffer bin 10 or the mud receiving trough 20 are detachably connected, which greatly facilitates subsequent maintenance, inspection and replacement. When maintenance is required, the operator can directly disassemble the connecting beam 614 and separate the buffer bin 10 or the mud receiving trough 20, which reduces the complexity and time of disassembly and replacement, reduces downtime, and ensures overall continuity.

[0052] Furthermore, the bottom bracket 40 includes a frame structure 41 and at least two oblique support beams 42 arranged on the frame structure 41, and the oblique support beams 42 and the bottom of the buffer bin 10 are detachably connected.

[0053] In this embodiment, the bottom bracket 40 includes a frame structure 41 and at least two oblique support beams 42 arranged on the frame structure 41, which can effectively share the load from the buffer bin 10, materials and the external environment. With the help of the oblique support beams 42, the load of the bottom bracket 40 is not only distributed vertically, but also can be transmitted to other directions, thereby enhancing the stability of the entire support structure 61 and avoiding the situation where the local structure is subjected to excessive stress. The detachable connection between the oblique support beams 42 and the bottom of the buffer bin 10 makes installation and disassembly more convenient. The operator can adjust the angle or position of the buffer bin 10 according to actual needs, or when performing equipment maintenance, the buffer bin 10 can be easily removed by simply removing the oblique support beams 42, which enhances flexibility and saves time for repair and replacement of parts.

[0054] Furthermore, the frame structure 41 includes multiple lower cross beams 411, multiple upper cross beams 412 and multiple bottom support beams 413. The lower cross beams 411 and the mounting frame 60 are detachably connected. The upper cross beams 412 are installed on the lower cross beams 411 and are perpendicular to the lower cross beams 411. The lower end of the bottom support beam 413 is fixedly connected to the upper cross beam 412, and the upper end of the bottom support beam 413 is fixedly connected to the oblique support beam 42.

[0055] In this embodiment, by adopting a structural configuration of multiple lower crossbeams 411 and upper crossbeams 412, the frame structure 41 can achieve a relatively uniform load distribution. The upper crossbeam 412 and the lower crossbeam 411 are installed vertically so that the entire frame structure 41 forms a stable grid structure, providing bending resistance, and each part of the structure can share the load from the buffer bin 10, material flow or external environment. The fixed connection between the lower end of the bottom support beam 413 and the upper crossbeam 412 forms a stable structural support system. The function of the upper crossbeam 412 is to disperse the load in multiple directions, while the lower end of the bottom support beam 413 transfers these loads to the bottom of the frame structure 41, thereby enhancing the overall bearing capacity. The fixed connection between the upper end of the bottom support beam 413 and the oblique support beam 42 allows the oblique support beam 42 to absorb and effectively disperse the force generated by external impact. The oblique support beam 42 not only provides support in the vertical direction, but also transmits lateral force through the inclination angle, optimizing the overall impact resistance design. The lower cross beam 411 and the mounting frame 60 are detachably connected, so that during installation, adjustment or maintenance, the frame structure 41 can be flexibly disassembled and reassembled according to actual needs.

[0056] During the implementation process, due to the limitations of the underground tunnel conditions in the coal mine, the installation of the belt conveyor requires not only horizontal transportation, but also upward and downward transportation. Therefore, there is an oblique throwing motion in the overlapped coal flow. In the overlap design of the belt conveyor and the buffer bin design, the overlap height, overlap distance and other parameters must be determined according to the parabolic trajectory equation. The specific determination method is as follows:

[0057] (1) Equation of oblique projectile motion trajectory

[0058] According to the displacement formula of oblique projectile motion x = (v0cosθ)t, Ignoring air resistance, the trajectory equation of the oblique projectile motion can be derived:

[0059] Where v0 is the belt conveyor speed, mm / s;

[0060] θ——belt conveyor inclination angle, degree;

[0061] g——acceleration due to gravity, mm / s 2 ;

[0062] x——the horizontal coordinate of the point on the parabola, mm;

[0063] y – the vertical coordinate of a point on the parabola, mm.

[0064] Note: When throwing diagonally to the left, take +, and when throwing diagonally to the right, take -.

[0065] (2) Parabola vertex equation

[0066] To draw a parabola using the focal length, the focal length and the coordinates of the parabola's vertex must be obtained.

[0067] To this end, the trajectory equation of the oblique projectile motion can be transformed into the vertex parabola equation, that is, y = a (xh) 2 +k(a≠0) form, we can get

[0068] Among them, the coordinates of the parabola vertex (x1, y1) are:

[0069]

[0070] Note: When the vertex of the parabola is in the 1st or 4th quadrant, x1 is +; when the vertex of the parabola is in the 2nd or 3rd quadrant, x1 is -.

[0071] (3) Standard equation of parabola

[0072] Then transform the trajectory equation of the oblique projectile motion into the standard parabola equation form, that is, x 2 =-2py(p>0) form, by changing

[0073] Therefore, the focal length p is as follows:

[0074]

[0075] Substitute the values ​​of x1 and y1 into the above formula to obtain the value of p, that is

[0076] (4) Drawing of the middle layer of the material parabola

[0077] According to the cargo section of the belt conveyor, when fully loaded, the material is approximately flush with the upper edge of the conveyor belt side. Figure 8 As shown:

[0078] The cargo thickness h can be calculated from the figure c as follows:

[0079] h c =0.3Bsinθ1,

[0080] Where B is the width of the conveyor belt, mm;

[0081] θ1——The inclination angle of the side roller of the belt conveyor, degree.

[0082] In actual drawing, it is necessary to draw the parabola of the middle layer of the material to determine the overlapping position relationship of the belt conveyor. Therefore, when the parabola is tilted upward, the vertex of the parabola and the auxiliary line can be moved upward by 0.5h. c , get the parabola of the middle layer of the material; when throwing obliquely downward, the vertex of the parabola and the auxiliary line can be translated downward by 0.5h c , and obtain the parabola of the middle layer of the material.

[0083] According to the above calculation results, the material oblique throwing trajectory is drawn as follows:

[0084] (1) Raw data collection

[0085] There is an upper belt conveyor with an installation angle of θ = 16°, a side roller angle of θ1 = 35°, a belt speed of v0 = 4500mm / s, a belt width of B = 1400mm, an angle of 10° with the plane of the lower conveyor and the buffer bin, and a gravity acceleration of 9800mm / s. 2 The height of the unloading point of the conveyor and the center of the bottom plate of the head buffer bin is H = 500mm. Draw a parabola based on the known graphic conditions such as the bottom plate of the buffer bin, and determine the horizontal distance between the unloading point of the conveyor and the center line of the bottom plate of the head buffer bin.

[0086] (2) Calculate the vertex of the parabola

[0087] Assuming that the unloading point of the belt conveyor is the origin of the plane coordinate system, substitute the known parameters into the formula:

[0088]

[0089] We can get:

[0090]

[0091] (3) Calculate focal length

[0092] Substitute the known parameters into the formula:

[0093]

[0094] We can get:

[0095]

[0096] (4) Material parabolic thickness

[0097] Substitute the known parameters into the formula:

[0098] h c =0.3Bsinθ1,

[0099] We can get:

[0100] h c =0.3×1400sin35°=240.90(mm).

[0101] (5) Sketching

[0102] In the drawing area, estimate the position of the belt conveyor unloading point and the vertex of the middle layer of the parabola, draw vertical upward and downward auxiliary lines along the vertex of the parabola, and then click the lower and upper endpoints of the auxiliary lines in turn to draw a parabola with the top of the unloading point as the starting point.

[0103] (6) Dimension and fully define the sketch

[0104] Click to make the parabola endpoint coincide with the center line of the buffer bin bottom plate, then mark the distance between the parabola vertex and the unloading point after translation, mark the total length of the auxiliary line according to the focal length, mark the overlap height, and make the sketch fully defined. Finally, mark the horizontal overlap distance and set this dimension as driven.

[0105] (7) Verify overlap parameters

[0106] Substitute the measured parabola endpoint abscissa x2 = -2181.22 mm into the formula:

[0107]

[0108] The ordinate of the end point of the parabola can be obtained:

[0109]

[0110] From the calculation, we can know that the drawing is accurate and the horizontal overlap distance is determined by the overlap height. You can also mark the horizontal overlap distance first and determine the overlap height, and the calculation process is the same.

[0111] According to the above calculation results and the material oblique throwing trajectory, a three-dimensional model can be established. The specific ideas are as follows:

[0112] In the design of belt conveyor overlap and its buffer bin, due to the large number of angles and inclinations, it is difficult to design parts separately and then assemble them into an assembly. It is necessary to directly design each part from the assembly module and then export the parts from the assembly module. This top-down design method reduces the design difficulty and makes the design of belt conveyor overlap and its buffer bin simple and easy. In the design, you can first design the overall layout sketch and fully define the dimensional relationship. The reference layout sketch is then converted during 3D modeling. In order to facilitate later calls, you can generate a new design by simply modifying the layout sketch size.

[0113] The above is only an optional embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0114] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0115] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of this solution. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0116] In the description of this scheme, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing this scheme and simplifying the description. Unless otherwise stated, these directional words 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. Therefore, they cannot be understood as limiting the scope of protection of this scheme; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0117] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0118] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this scheme.

Claims

1. A flow guide device at the overlap of a belt conveyor, characterized in that: The invention comprises a modular buffer bin (10), a mud receiving trough (20), a mounting frame (60) and a bottom bracket (40): the buffer bin (10) and the mud receiving trough (20) are detachably connected, and the buffer bin (10) and the mud receiving trough (20) are both detachably mounted on the mounting frame (60); the bottom bracket (40) is detachably mounted on the mounting frame (60), and the bottom bracket (40) carries the buffer bin (10); wherein the mud receiving trough (20) is connected to the output end of a belt conveyor, and the material output by the belt conveyor is The material enters the buffer bin (10) along the mud receiving trough (20), and the direction in which the material is input into the buffer bin (10) is a first direction. The buffer bin (10) has a bottom plate (70) and a discharge port (30), and the discharge port (30) is oriented in a second direction. The bottom plate (70) is inclined relative to both the first direction and the second direction. The bottom plate (70) is used to receive and buffer the input material and guide the material to be output from the discharge port (30). The material output from the discharge port (30) enters the input end of another belt conveyor.

2. The belt conveyor overlap guide device according to claim 1, characterized in that: The buffer bin (10) further comprises a first side plate (11), a second side plate (12) and a third side plate (13) which are sequentially arranged around the bottom plate (70); an opening between the first side plate (11) and the third side plate (13) faces the mud receiving trough (20); and the discharge port (30) is located on the third side plate (13).

3. The flow guiding device at the overlap of the belt conveyor according to claim 2, characterized in that: The first side panel (11), the second side panel (12) and the third side panel (13) are all connected to the mounting frame (60) via fasteners, and the first side panel (11) and the third side panel (13) are detachably connected to the mud receiving trough (20) via a splicing plate, respectively.

4. The belt conveyor overlap guide device according to claim 1, characterized in that: The buffer bin (10) further comprises a plurality of reinforcing beams (14), wherein the plurality of reinforcing beams (14) are fixed to the lower side of the bottom plate (70) to support the bottom plate (70); the reinforcing beams (14) and the bottom bracket (40) are detachably connected.

5. The flow guiding device at the overlap of the belt conveyor according to claim 1, characterized in that: The bottom plate (70) has an inclination angle of 30° to 36° relative to the horizontal plane.

6. The flow guiding device at the overlap of a belt conveyor according to claim 1, characterized in that: The mud receiving trough (20) comprises a first baffle (21), a second baffle (22), a third baffle and a fourth baffle; the first baffle (21) and the second baffle (22) are arranged opposite to each other and are connected to the buffer bin (10); the third baffle is connected to the lower sides of the first baffle (21) and the second baffle (22); and the fourth baffle is connected to the lower side of the second baffle (22), the third baffle and the bottom plate (70).

7. The flow guiding device at the overlap of a belt conveyor according to claim 1, characterized in that: The mounting frame (60) comprises a supporting structure (61) and a plurality of vertical beams (62); the plurality of vertical beams (62) are arranged around the buffer bin (10); the supporting structure (61) is fixed to the tops of the plurality of vertical beams (62); and the buffer bin (10) and the mud receiving trough (20) are respectively detachably connected to the supporting structure (61).

8. The flow guiding device at the overlap of the belt conveyor according to claim 7, characterized in that: The support structure (61) comprises a first support beam (611), a second support beam (612) and a third support beam (613) which are connected in sequence; a plurality of connection beams (614) are fixed on each of the first support beam (611), the second support beam (612) and the third support beam (613); and the connection beams (614) and the buffer bin (10) or the mud receiving trough (20) are detachably connected.

9. The flow guiding device at the overlap of a belt conveyor according to claim 1, characterized in that: The bottom bracket (40) comprises a frame structure (41) and at least two oblique support beams (42) arranged on the frame structure (41); the oblique support beams (42) and the bottom of the buffer bin (10) are detachably connected.

10. The flow guiding device at the overlap of a belt conveyor according to claim 9, characterized in that: The frame structure (41) comprises a plurality of lower cross beams (411), a plurality of upper cross beams (412) and a plurality of bottom support beams (413); the lower cross beams (411) and the mounting frame (60) are detachably connected; the upper cross beams (412) are mounted on the lower cross beams (411) and are perpendicular to the lower cross beams (411); the lower ends of the bottom support beams (413) are fixedly connected to the upper cross beams (412); and the upper ends of the bottom support beams (413) are fixedly connected to the oblique support beams (42).

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