Conveying device for mining

Abstract

The invention relates to the technical field of mineral conveying, and discloses a mine exploitation conveying device which comprises a first transverse plate, a connecting seat is fixedly mounted on the front face of the first transverse plate, spring rotating rods movably sleeve the two ends of the connecting seat, and second connecting shaft sleeves movably sleeve the front ends of the spring rotating rods; and the second connecting shaft sleeve is movably sleeved with the tail end of the central shaft. The displacement distance of the rear end of the clamping device is small under the traction effect of the spring rotating rod, the clamping device pushes the two ends of the conveying belt to move upwards, and therefore the overall bending degree of the conveying belt is increased, and the amount of minerals capable of being borne by the whole conveying belt is increased; the appearance of the conveying belt is fixed, when the amount of minerals is increased, the minerals are likely to overflow from the two sides of the conveying belt, the situation is well avoided through the device, and the reliability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of mineral transportation, and in particular to a transportation device used in mining. Background Art

[0002] In mining, in order to effectively transport the mined minerals, a conveying device is used to transport the minerals to the processing site. The traditional conveying device is composed of a power device, a support device and a conveyor belt. The transmission device is mainly composed of a bracket and three transmission rollers. The positions of the three transmission rollers are fixed, and the middle support roller is arranged horizontally, while the support rollers on both sides are arranged at a certain angle to the horizontal plane. This causes the conveyor belt to bend when passing over the support rollers, making it higher on both sides and lower in the middle. This can effectively improve the carrying capacity of the conveyor belt and prevent minerals from overflowing from both sides. However, in actual use, due to the fixed shape of the conveyor belt, when the load is high, the minerals may still overflow from both sides of the conveyor belt, and the transmission between the transmission roller and the conveyor belt is carried out by friction. Under high load or high and low transportation, slipping problems are prone to occur. In this regard, the present application document proposes a conveying device for mining, which aims to solve the above-mentioned problems. Summary of the Invention

[0003] The present application proposes a conveying device for mining, which has the advantages of variable conveyor belt shape and improved load-bearing capacity, and is used to solve the problem that the conveyor belt has a fixed shape and causes minerals to overflow from both sides under high load conditions.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a conveying device used in mining, comprising a base plate and a conveyor belt, a load-bearing device fixedly installed on the top of the base plate, clamping devices movably installed at both ends of the load-bearing device, the conveyor belt passes through and contacts the top of the load-bearing device and the clamping device, a mounting bracket is fixedly installed on the top of the base plate near both sides, a traction device is fixedly installed on the back of the mounting bracket near the middle, the traction device is connected to the clamping device, a top plate is fixedly installed on the back of the mounting bracket at a position above the traction device, a water spraying device is fixedly installed on the bottom of the top plate, a liquid guide device is fixedly installed on the back of the mounting bracket at a position below the traction device, and the liquid guide device is respectively connected to the clamping device and the water spraying device.

[0005] Furthermore, the carrying device includes a base, and limit rods are fixedly installed on the top of the base near both ends, and a lifting column is movably installed on the top of the limit rod by telescopic cooperation. A lifting spring is provided at the bottom of the lifting column outside the limit rod, and the bottom of the lifting spring is in contact with the top of the base, and a circular hole is provided on the side of the lifting column near the top, and a rotating roller is sleeved inside the circular hole, and the outer surface of the rotating roller is in contact with the bottom surface of the conveyor belt, and a connecting hinge is movably installed on the top of the lifting column by a hinge connection, and one end of the connecting hinge is connected to the clamping device by a hinge.

[0006] Furthermore, the clamping device includes a central shaft, a front end of the central shaft is movably sleeved with a first connecting sleeve, the first connecting sleeve is movably connected to the connecting hinge, the tail end of the central shaft is movably sleeved with the traction device, a sleeve is provided on the outer surface of the central shaft near the first connecting sleeve, and the outer surface of the sleeve is sleeved with an outer sleeve, and a limiting groove is provided on the outer surface of the central shaft at a position between the traction device and the outer sleeve; Specifically, the outer surface of the outer sleeve is provided with annular clamping plates, which are distributed in a linear array in the axial direction of the outer sleeve. The outer surface of the outer sleeve is provided with travel holes at positions between the annular clamping plates, which are distributed in an annular array. The inner sleeve is movably installed inside the outer sleeve. Specifically, a fan-shaped clamping block is fixedly mounted on the outer surface of the inner sleeve, and the fan-shaped clamping blocks are distributed in a rectangular array. The fan-shaped clamping blocks correspond to the stroke holes one by one and extend from the inside of the stroke holes. Connecting rods are fixedly mounted above and below one end of the inner wall of the inner sleeve, and a coupling plate is fixedly mounted on one end of the connecting rod. A push rod is movably sleeved inside the coupling plate. Specifically, the connecting rod passes through the limiting sliding groove and extends to the inside of the central shaft; Specifically, in the initial state, the sector-shaped clamping block is located on the left side of the travel hole and contacts the annular clamping plate on the left side, and there is a gap between the sector-shaped clamping block and the annular clamping plate on the right side, and the gap is in contact with the conveyor belt.

[0007] Furthermore, the traction device includes a first transverse plate, a connecting seat is fixedly installed on the front side of the first transverse plate, both ends of the connecting seat are movably sleeved with spring rotating rods, the front end of the spring rotating rod is movably sleeved with a second connecting shaft sleeve, and the second connecting shaft sleeve is movably sleeved with the tail end of the center shaft.

[0008] Furthermore, the liquid guiding device includes a second transverse plate, a liquid guiding shell is fixedly installed on the front side of the second transverse plate, a partition is provided inside the liquid guiding shell, and the number of the partitions is two and the inner cavity of the liquid guiding shell is divided into three independent cavities M1, M2 and M3, a liquid blocking flap is provided on the inner side of the partition near the middle, a bypass hole is movably provided on the inner side of the partition above the liquid blocking flap, a liquid outlet is provided on the front side of the second transverse plate near the top, the number of the liquid outlets is three and they are respectively connected to the three cavities M1, M2 and M3, a one-way valve is installed on the back of the liquid outlet, a lifting device is movably installed on the top of the second transverse plate, a four-way pipe is fixedly installed on the front side of the liquid guiding shell near the top, the input ends of the four-way pipe are respectively connected to the liquid outlet holes, and the output end of the four-way pipe is connected to the water spraying equipment, and a liquid inlet is provided on the bottom of the second transverse plate near the middle, and the liquid inlet is connected to the water supply equipment.

[0009] Furthermore, the lifting device includes a lifting platform, a transmission rod is movably installed on the top of the lifting platform, one end of the transmission rod is movably sleeved with the push rod, and spring telescopic rods are fixedly installed near the middle and at both ends of the bottom of the lifting platform. The spring telescopic rods pass through the top of the second transverse plate and extend into the M1 and M3 cavities. A pressure plate is fixedly installed at the bottom of the spring telescopic rods. The lifting platform and the inner wall and partition of the second transverse plate are sealed. Specifically, the pressure plate is located above the bypass hole; Specifically, the length of the spring telescopic rod located in the middle is shorter than the spring telescopic rods located on both sides.

[0010] Furthermore, the conveyor belt includes a conveyor belt, and matching protrusions are provided at the bottom of the conveyor belt near both ends, and the interval between the fan-shaped clamping block and the right annular clamping plate matches the matching protrusions.

[0011] This application has the following beneficial effects.

[0012] When the device is under high load, the two ends of the conveyor belt move up and the middle position moves down, which increases the bending degree of the conveyor belt, thereby improving the carrying capacity of the conveyor belt and preventing minerals from overflowing from both sides of the conveyor belt. The spacing between the annular clamp and the fan-shaped clamp block cooperates with the matching protrusions to effectively improve the lateral limiting effect on the conveyor belt, avoiding the problem of increased bending of the conveyor belt at the alternating position of the clamping device and the rotating roller, which causes damage to the conveyor belt structure. When the amount of minerals on the top of the conveyor belt is large, the water supply equipment needs to provide greater water pressure to push the pressure plate upward, thereby increasing the amount of water entering the water spraying equipment through the liquid outlet and the four-way pipe, thereby improving the spraying efficiency of the water spraying equipment. When the amount of minerals carried on the top of the conveyor belt increases and more dust pollution is generated, the dust reduction efficiency of the water spraying equipment can also be improved at the same time, thereby improving the environmental protection performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments disclosed herein and, together with the description, serve to explain the principles disclosed herein.

[0014] The present disclosure can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which: Figure 1 This is the structural installation diagram of the present invention; Figure 2 This is the main structural diagram of the present invention; Figure 3 This is a cross-sectional view of the main structure of the present invention; Figure 4 This is a diagram of the structural support device of the present invention; Figure 5 It is a cross-sectional view of the structural support device of the present invention; Figure 6 This is a diagram of the structural clamping device of the present invention; Figure 7 This is a cross-sectional view of the structural clamping device of the present invention; Figure 8 This is an exploded view of the structural clamping device of the present invention; Figure 9 This is a diagram of the traction device structure of the present invention; Figure 10 This is a diagram of the liquid guiding device structure of the present invention; Figure 11 This is a diagram showing the internal structure of the liquid guiding device of the present invention; Figure 12 This is a diagram of the structural lifting device of the present invention; Figure 13 This is a structural diagram of the liquid-conducting housing of the present invention; Figure 14 This is a structural diagram of the conveyor belt structure of the present invention; Figure 15 This is a force analysis diagram of the push rod and transmission rod of the structure of the present invention.

[0015] In the figure, 1. bottom plate; 2. conveyor belt; 21. conveyor belt; 22. mating protrusion; 3. bearing device; 31. base; 32. limiting rod; 33. lifting column; 34. lifting spring; 35. rotating roller; 36. connecting hinge; 4. clamping device; 41. center shaft; 42. first connecting sleeve; 43. outer sleeve; 44. limiting slide; 45. annular clamp; 46. travel hole; 47. inner sleeve; 48. fan-shaped clamping block; 49. connecting rod; 401. coupling plate; 402. push rod ; 5. Mounting bracket; 6. Traction device; 61. First transverse plate; 62. Connecting seat; 63. Spring rotating rod; 64. Second connecting sleeve; 7. Top plate; 8. Water spraying equipment; 9. Liquid guiding device; 91. Second transverse plate; 92. Liquid guiding shell; 93. Partition; 94. Liquid blocking flap; 95. Bypass hole; 96. Liquid outlet; 97. Lifting device; 971. Lifting platform; 972. Transmission rod; 973. Spring telescopic rod; 974. Pressure plate; 98. Four-way pipe; 99. Liquid inlet. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0017] A conveying device for mining, see Figure 1-Figure 3 , including a base plate 1 and a conveyor belt 2, a load-bearing device 3 is fixedly installed on the top of the base plate 1, and clamping devices 4 are movably installed at both ends of the load-bearing device 3, the conveyor belt 2 passes through and contacts the top of the load-bearing device 3 and the clamping device 4, a mounting bracket 5 is fixedly installed on the top of the base plate 1 near the two sides, a traction device 6 is fixedly installed on the back of the mounting bracket 5 near the middle, the traction device 6 is connected to the clamping device 4, a top plate 7 is fixedly installed on the back of the mounting bracket 5 at a position above the traction device 6, a water spraying device 8 is fixedly installed on the bottom of the top plate 7, a liquid guide device 9 is fixedly installed on the back of the mounting bracket 5 at a position below the traction device 6, and the liquid guide device 9 is respectively connected to the clamping device 4 and the water spraying device 8.

[0018] See also Figure 4-Figure 5The carrying device 3 includes a base 31, and a limit rod 32 is fixedly installed on the top of the base 31 near both ends. The top of the limit rod 32 is movably installed with a lifting column 33 by telescopic cooperation. The bottom of the lifting column 33 is provided with a lifting spring 34 at the outside of the limit rod 32. The bottom of the lifting spring 34 is in contact with the top of the base 31. A circular hole is opened on the side of the lifting column 33 near the top, and a rotating roller 35 is sleeved inside the circular hole. The outer surface of the rotating roller 35 is in contact with the bottom surface of the conveyor belt 2. The top of the lifting column 33 is movably installed with a connecting hinge 36 by a hinge connection. One end of the connecting hinge 36 is connected to the clamping device 4 through a hinge.

[0019] When the amount of mineral carried on the top of the conveyor belt 21 increases, and the rotating roller 35 moves downward and the angle between the axis of the rotating roller 35 and the axis of the clamping device 4 decreases, the fan-shaped clamping block 48 and the annular clamping plate 45 can realize the limiting function of the mating protrusion 22 to prevent the conveyor belt 21 from deforming under the heavy pressure of the mineral, resulting in an increase in the contact area between the conveyor belt 21 and the rotating roller 35 and a decrease in the contact area with the clamping device 4, causing an increase in the position loss of the bottom surface of the conveyor belt 21 in contact with the rotating roller 35. In addition, it also avoids the problem of increased bending of the conveyor belt 21 at the alternating position of the clamping device 4 and the rotating roller 35, causing damage to the structure of the conveyor belt 2, thereby improving the reliability of the device.

[0020] See also Figure 2-Figure 3 and Figure 6-Figure 8 The clamping device 4 includes a central shaft 41, the front end of the central shaft 41 is movably sleeved with a first connecting sleeve 42, the first connecting sleeve 42 is movably connected to the connecting hinge 36, the tail end of the central shaft 41 is movably sleeved with the traction device 6, a sleeve is provided on the outer surface of the central shaft 41 near the first connecting sleeve 42, and the outer surface of the sleeve is sleeved with an outer sleeve 43, and a limiting groove 44 is provided on the outer surface of the central shaft 41 between the traction device 6 and the outer sleeve 43; See also Figure 6-Figure 8 The outer surface of the outer sleeve 43 is provided with an annular clamping plate 45, and the annular clamping plates 45 are distributed in a linear array in the axial direction of the outer sleeve 43. The outer surface of the outer sleeve 43 is provided with travel holes 46 at positions between the annular clamping plates 45. The travel holes 46 are distributed in an annular array. The inner sleeve 47 is movably installed inside the outer sleeve 43; See also Figure 6-Figure 8The outer surface of the inner sleeve 47 is fixedly mounted with a sector-shaped clamping block 48. The sector-shaped clamping blocks 48 are distributed in a rectangular array. The sector-shaped clamping blocks 48 correspond to the stroke holes 46 one by one and extend from the inside of the stroke holes 46. Connecting rods 49 are fixedly mounted above and below one end of the inner wall of the inner sleeve 47. A coupling plate 401 is fixedly mounted on one end of the connecting rod 49. A push rod 402 is movably sleeved inside the coupling plate 401. See also Figure 6-Figure 8 , the connecting rod 49 passes through the limiting sliding groove 44 and extends to the inside of the central shaft 41; See also Figure 2 and Figure 6-Figure 8 In the initial state, the fan-shaped clamping block 48 is located on the left side of the stroke hole 46 and contacts the annular clamping plate 45 on the left, and there is a gap between it and the annular clamping plate 45 on the right, and the gap is in contact with the conveyor belt 2.

[0021] See also Figure 8-Figure 9 The traction device 6 includes a first transverse plate 61, and a connecting seat 62 is fixedly installed on the front side of the first transverse plate 61. Both ends of the connecting seat 62 are movably sleeved with a spring rotating rod 63, and the front end of the spring rotating rod 63 is movably sleeved with a second connecting shaft sleeve 64, and the second connecting shaft sleeve 64 is movably sleeved with the tail end of the center shaft 41.

[0022] The use of the gap between the fan-shaped clamping block 48 and the right annular clamping plate 45 and the matching protrusion 22 can effectively improve the contact friction between the conveyor belt 2 and the rotating roller 35 and the clamping device 4, and can avoid the slip problem between the contact surfaces. When the amount of minerals carried on the top of the conveyor belt 21 is large and the minerals are concentrated near the middle of the top of the conveyor belt 21, the conveyor belt 21 is deformed under the pressure of the minerals and drives the rotating roller 35 and the lifting column 33 to move downward. Since one end of the connecting hinge 36 is connected to the clamping device 4, and the second connecting shaft sleeve 64 is movably sleeved with the end of the central shaft 41, and the spring rotating rod 63 is retractable and elastic, the rotating As the roller 35 moves downward, the front end of the clamping device 4 is driven to move downward, while the rear end of the clamping device 4 is displaced a smaller distance under the pulling action of the spring rotating rod 63, so that the angle between the axis of the rotating roller 35 and the axis of the clamping device 4 increases, and the clamping device 4 pushes the two ends of the conveyor belt 21 to move upward, thereby increasing the overall bending degree of the conveyor belt 2, and increasing the amount of minerals that the conveyor belt 2 can carry as a whole. The rotating rollers in traditional conveying devices are installed in a limited sleeve manner, so that the shape of the conveyor belt is fixed. When the amount of minerals increases, it is easy for the minerals to overflow from both sides of the conveyor belt. The present application document avoids this problem well, thereby improving the reliability of the device.

[0023] When the rotating roller 35 moves downward and drives the clamping device 4 to move synchronously, the spring rotating rod 63 is stretched and generates tension, and the second connecting sleeve 64 is movably sleeved with the tail end of the center shaft 41, so that the second connecting sleeve 64 transmits the tension to the end of the center shaft 41. Since a sleeve is provided on the outer surface of the center shaft 41 near the first connecting sleeve 42, and the outer surface of the sleeve is sleeved with an outer sleeve 43, the tension acts on the outer sleeve 43 and produces displacement, so that the distance between the fan-shaped clamping block 48 and the annular clamping plate 45 on the right is shortened, and the clamping force of the mating protrusion 22 is increased, so that the friction force of the contact surface between the clamping device 4 and the conveyor belt 2 is increased, so that when the amount of minerals carried on the top of the conveyor belt 2 increases, the friction force between the clamping device 4 and the conveyor belt 2 can also be increased synchronously, avoiding the problem of the conveyor belt 2 slipping due to the increase in the carrying capacity of the conveyor belt 2, thereby improving the practicality of the device. At the same time, when the conveyor belt 2 is at a low load, the clamping force of the fan-shaped clamping block 48 and the annular clamping plate 45 on the mating protrusion 22 is at a low level, avoiding the problem of excessive wear of the mating protrusion 22 and increasing the service life of the device.

[0024] See also Figure 10-13 The liquid guide device 9 includes a second transverse plate 91, a liquid guide housing 92 is fixedly mounted on the front of the second transverse plate 91, a partition 93 is provided inside the liquid guide housing 92, and the number of the partitions 93 is two, and the inner cavity of the liquid guide housing 92 is divided into three independent cavities M1, M2 and M3. A liquid blocking flap 94 is provided on the inner side of the partition 93 near the middle, and a bypass hole 95 is movably provided on the inner side of the partition 93 above the liquid blocking flap 94. A liquid outlet hole 96 is provided on the front side of the second transverse plate 91 near the top. There are three liquid outlet holes 96, which are respectively connected to the three cavities M1, M2 and M3. A one-way valve is installed on the back of the liquid outlet hole 96. A lifting device 97 is movably installed on the top of the second transverse plate 91. A four-way pipe 98 is fixedly installed on the front of the liquid guide shell 92 near the top. The input ends of the four-way pipe 98 are respectively connected to the liquid outlet holes 96, and the output ends of the four-way pipe 98 are connected to the water spraying equipment 8. A liquid inlet hole 99 is opened near the middle of the bottom of the second transverse plate 91, and the liquid inlet hole 99 is connected to the water supply equipment.

[0025] See also Figure 12 , Figure 10 and Figure 8The lifting device 97 includes a lifting platform 971. A transmission rod 972 is movably installed on the top of the lifting platform 971. One end of the transmission rod 972 is movably sleeved with the push rod 402. Spring telescopic rods 973 are fixedly installed near the middle and at both ends of the bottom of the lifting platform 971. The spring telescopic rods 973 pass through the top of the second transverse plate 91 and extend into the M1 and M3 cavities. A pressure plate 974 is fixedly installed at the bottom of the spring telescopic rods 973. The lifting platform 971 and the inner wall of the second transverse plate 91 and the partition 93 are sealed. See also Figure 11-13 , the pressure plate 974 is located above the bypass hole 95; See also Figure 12 , the length of the spring telescopic rod 973 located in the middle is smaller than the spring telescopic rods 973 located on both sides.

[0026] See also Figure 8 and Figure 14 The conveyor belt 2 includes a conveyor belt 21 , and matching protrusions 22 are provided at the bottom of the conveyor belt 21 near both ends. The interval between the fan-shaped clamping block 48 and the right annular clamping plate 45 matches the matching protrusions 22 .

[0027] When the amount of minerals on the top of the conveyor belt 21 increases and the posture of the clamping device 4 changes, the angle A between the transmission rod 972 and the push rod 402 decreases. As a result, when the lifting device 97 moves upward as a whole, the component force F2 of the thrust Fm generated by the transmission rod 972 on the push rod 402 in the axial direction of the push rod 402 decreases compared to the component force F1 in the initial state (see Figure 15 ), which increases the resistance encountered by the lifting device 97 during the lifting process. During the dust removal operation, water needs to be fed into the M2 cavity inside the second transverse plate 91 through the water supply equipment and the liquid inlet hole 99. At this time, the device is in a vertical state, and the liquid blocking flaps 94 are all in a vertical state and the bypass hole 95 is blocked. At this time, the water fed into the second transverse plate 91 fills the M2 cavity, enters the interior of the water spraying device 8 through the liquid outlet hole 96, the four-way pipe 98 and the connecting pipe, and is sprayed out through the nozzle to reduce dust. When the amount of minerals on the top of the conveyor belt 21 is large, the water supply equipment needs to provide a larger water pressure to push the pressure plate 974 upward, thereby increasing the amount of water entering the water spraying device 8 through the liquid outlet hole 96 and the four-way pipe 98, thereby improving the spray efficiency of the water spraying device 8. When the amount of minerals carried on the top of the conveyor belt 21 increases and more dust pollution is generated, the dust reduction efficiency of the water spraying device 8 can also be improved at the same time, thereby improving the environmental protection performance of the device.

[0028] In the process of the rotating roller 35 moving downward, in order to prevent the annular clamping plate 45 and the fan-shaped clamping block 48 from clamping the mating protrusion 22 too high, when the lifting device 97 moves upward as a whole under the action of water pressure, the transmission rod 972 is displaced to push the push rod 402 and drive the inner sleeve 47 to move in the direction close to the first connecting shaft sleeve 42, thereby reducing the clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 on the mating protrusion 22, ensuring that the device reduces the clamping force on the mating protrusion 22 under zero load, and avoiding excessive wear of the mating protrusion 22 as much as possible. In addition, when the amount of minerals in the conveying belt 21 increases and the load increases, the angle A between the transmission rod 972 and the push rod 402 decreases. On the basis of the thrust Fm generated by the transmission rod 972 remaining unchanged, the component force F2 along the push rod 402 direction decreases (see Figure 15 ), the effect of slowing down the clamping force of the annular clamp plate 45 and the fan-shaped clamp block 48 on the matching protrusion 22 is reduced, thereby improving the clamping force of the annular clamp plate 45 and the fan-shaped clamp block 48 on the matching protrusion 22, and achieving the effect that the clamping force of the annular clamp plate 45 and the fan-shaped clamp block 48 increases with the increase of the amount of mineral carried on the top of the conveyor belt 21, ensuring that the conveyor belt 21 will not slip under high load conditions.

[0029] The method of use of the present invention is as follows: The use of the gap between the fan-shaped clamping block 48 and the right annular clamping plate 45 and the matching protrusion 22 can effectively improve the contact friction between the conveyor belt 2 and the rotating roller 35 and the clamping device 4, thereby avoiding the slipping problem between the contact surfaces. When the amount of minerals carried on the top of the conveyor belt 21 is large and the minerals are concentrated near the middle of the top of the conveyor belt 21, the conveyor belt 21 is deformed under the pressure of the minerals and drives the rotating roller 35 and the lifting column 33 to move downward. Since one end of the connecting hinge 36 is connected to the clamping device 4, and the second connecting shaft sleeve 64 is movably sleeved on the end of the central shaft 41, the spring The rotating rod 63 is retractable and elastic, so that when the rotating roller 35 moves downward, the front end of the clamping device 4 is driven downward, and the rear end of the clamping device 4 is displaced less under the pulling action of the spring rotating rod 63, so that the angle between the axis of the rotating roller 35 and the axis of the clamping device 4 increases, and the clamping device 4 pushes the two ends of the conveyor belt 21 to move upward, thereby increasing the overall bending degree of the conveyor belt 2, and increasing the amount of minerals that the conveyor belt 2 can carry as a whole. When the rotating roller 35 moves downward and drives the clamping device 4 to move synchronously, the spring rotating rod 63 is stretched and generates tension, which is connected to the center axis through the second connecting sleeve 64. The tail end of 41 is movably sleeved, so that the second connecting sleeve 64 transmits the pulling force to the end of the central shaft 41. Since a sleeve is provided on the outer surface of the central shaft 41 near the first connecting sleeve 42, and the outer surface of the sleeve is sleeved with an outer sleeve 43, the pulling force acts on the outer sleeve 43 and produces displacement, which shortens the distance between the fan-shaped clamping block 48 and the annular clamping plate 45 on the right side, and increases the clamping force of the matching protrusion 22, thereby increasing the friction force of the contact surface between the clamping device 4 and the conveyor belt 2, thereby achieving that when the amount of minerals carried on the top of the conveyor belt 2 increases, the friction force between the clamping device 4 and the conveyor belt 2 can also be increased synchronously, eliminating In addition to the problem of slippage, when the amount of minerals carried on the top of the conveyor belt 21 increases, and the rotating roller 35 moves downward and the angle between the axis of the rotating roller 35 and the axis of the clamping device 4 decreases, the fan-shaped clamping block 48 and the annular clamping plate 45 can realize the limiting function of the mating protrusion 22. After the increase in the amount of minerals on the top of the conveyor belt 21 causes the posture of the clamping device 4 to change, the angle A between the transmission rod 972 and the push rod 402 will decrease. As a result, when the lifting device 97 moves upward as a whole, the thrust Fm generated by the transmission rod 972 on the push rod 402 has a component F2 in the direction of the axis of the push rod 402 that is smaller than the component F1 in the initial state (see Figure 15), which increases the resistance encountered by the lifting device 97 during the lifting process. During the dust removal operation, water needs to be fed into the M2 cavity inside the second transverse plate 91 through the water supply equipment and the liquid inlet hole 99. At this time, the device is in a vertical state, and the liquid-blocking flaps 94 are all in a vertical state and the bypass hole 95 is blocked. At this time, the water fed into the second transverse plate 91 fills the M2 cavity, enters the interior of the water spraying device 8 through the liquid outlet hole 96, the four-way pipe 98 and the connecting pipe, and is sprayed out through the nozzle to reduce dust. When the amount of minerals on the top of the conveyor belt 21 is large, the water supply equipment needs to provide a greater water pressure to push the pressure plate 974 upward, thereby increasing the amount of water entering the water spraying device 8 through the liquid outlet hole 96 and the four-way pipe 98, thereby improving the spray efficiency of the water spraying device 8, and achieving the goal of increasing the amount of minerals carried on the top of the conveyor belt 21 and generating more powder. When dust pollution occurs, the dust reduction efficiency of the water spraying equipment 8 can also be improved at the same time. In the process of the rotating roller 35 moving downward, in order to prevent the annular clamping plate 45 and the fan-shaped clamping block 48 from clamping the mating protrusion 22 too high, when the lifting device 97 moves upward as a whole under the action of water pressure, the transmission rod 972 is displaced to push the push rod 402 and drive the inner sleeve 47 to move in the direction close to the first connecting shaft sleeve 42, thereby reducing the clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 on the mating protrusion 22, ensuring that the device reduces the clamping force on the mating protrusion 22 under zero load, and avoiding excessive wear of the mating protrusion 22 as much as possible. In addition, when the amount of minerals in the conveying belt 21 increases and the load increases, the angle A between the transmission rod 972 and the push rod 402 decreases. On the basis of the thrust Fm generated by the transmission rod 972 remaining unchanged, the component force F2 along the direction of the push rod 402 decreases (see Figure 15 ), the effect of slowing down the clamping force of the annular clamp plate 45 and the fan-shaped clamp block 48 on the matching protrusion 22 is reduced, thereby improving the clamping force of the annular clamp plate 45 and the fan-shaped clamp block 48 on the matching protrusion 22, and achieving the effect that the clamping force of the annular clamp plate 45 and the fan-shaped clamp block 48 increases with the increase of the amount of minerals carried on the top of the conveyor belt 21.

Claims

1. A conveying device for mining, characterized in that: The invention comprises a bottom plate (1) and a conveyor belt (2), wherein a carrying device (3) is fixedly installed on the top of the bottom plate (1), clamping devices (4) are movably installed at both ends of the carrying device (3), and the conveyor belt (2) passes through and contacts the top of the carrying device (3) and the clamping device (4), and a mounting bracket (5) is fixedly installed at a position near both sides of the top of the bottom plate (1), and a traction device (6) is fixedly installed at a position near the middle of the back of the mounting bracket (5), and the traction device (6) is connected to the clamping device (4), and a top plate (7) is fixedly installed at a position above the traction device (6) on the back of the mounting bracket (5), and a water spraying device (8) is fixedly installed at the bottom of the top plate (7), and a liquid guide device (9) is fixedly installed at a position below the traction device (6) on the back of the mounting bracket (5), and the liquid guide device (9) is respectively connected to the clamping device (4) and the water spraying device (8).

2. A conveying device for mining according to claim 1, characterized in that: The carrying device (3) includes a base (31), and a limit rod (32) is fixedly installed at a position near both ends of the top of the base (31), and a lifting column (33) is movably installed on the top of the limit rod (32) in a telescopic manner. A lifting spring (34) is provided at the bottom of the lifting column (33) at a position outside the limit rod (32), and the bottom of the lifting spring (34) contacts the top of the base (31). A circular hole is opened at a position near the top of the side of the lifting column (33), and a rotating roller (35) is sleeved inside the circular hole. The outer surface of the rotating roller (35) contacts the bottom surface of the conveyor belt (2), and a connecting hinge (36) is movably installed on the top of the lifting column (33) in a hinge connection manner. One end of the connecting hinge (36) is connected to the clamping device (4) through a hinge.

3. A conveying device for mining according to claim 2, characterized in that: The clamping device (4) includes a central shaft (41), a front end of the central shaft (41) is movably sleeved with a first connecting sleeve (42), the first connecting sleeve (42) is movably connected to the connecting hinge (36), the rear end of the central shaft (41) is movably sleeved with the traction device (6), a sleeve is provided on the outer surface of the central shaft (41) at a position close to the first connecting sleeve (42), and an outer sleeve (43) is sleeved on the outer surface of the sleeve, and a limiting slot (44) is provided on the outer surface of the central shaft (41) at a position between the traction device (6) and the outer sleeve (43); The outer surface of the outer sleeve (43) is provided with an annular clamping plate (45), and the annular clamping plates (45) are distributed in a linear array in the axial direction of the outer sleeve (43). The outer surface of the outer sleeve (43) is provided with travel holes (46) at positions between the annular clamping plates (45), and the travel holes (46) are distributed in an annular array. An inner sleeve (47) is movably installed inside the outer sleeve (43); A fan-shaped clamping block (48) is fixedly mounted on the outer surface of the inner sleeve (47), and the fan-shaped clamping blocks (48) are distributed in a rectangular array. The fan-shaped clamping blocks (48) correspond to the stroke holes (46) one by one and the fan-shaped clamping blocks (48) extend from the inside of the stroke hole (46). Connecting rods (49) are fixedly mounted above and below one end of the inner wall of the inner sleeve (47), and a coupling plate (401) is fixedly mounted on one end of the connecting rod (49), and a push rod (402) is provided in a movable sleeve inside the coupling plate (401); The connecting rod (49) passes through the limiting sliding groove (44) and extends to the inside of the central shaft (41); In the initial state, the fan-shaped clamping block (48) is located on the left side of the travel hole (46) and contacts the annular clamping plate (45) on the left side, and there is a gap between the fan-shaped clamping block (48) and the annular clamping plate (45) on the right side, and the gap is in contact with the conveyor belt (2).

4. A conveying device for mining according to claim 3, characterized in that: The traction device (6) comprises a first transverse plate (61), a connecting seat (62) is fixedly mounted on the front side of the first transverse plate (61), both ends of the connecting seat (62) are movably sleeved with spring rotating rods (63), the front end of the spring rotating rod (63) is movably sleeved with a second connecting shaft sleeve (64), and the second connecting shaft sleeve (64) is movably sleeved with the rear end of the central shaft (41).

5. The conveying device for mining according to claim 4, characterized in that: The liquid guiding device (9) comprises a second transverse plate (91), a liquid guiding housing (92) is fixedly mounted on the front of the second transverse plate (91), a partition (93) is provided inside the liquid guiding housing (92), and the number of the partitions (93) is two, and the inner cavity of the liquid guiding housing (92) is divided into three independent cavities M1, M2 and M3, a liquid blocking flap (94) is provided at a position near the middle of the inner side of the partition (93), a bypass hole (95) is movably provided at a position above the liquid blocking flap (94) on the inner side of the partition (93), and a liquid outlet hole (96) is provided at a position near the top of the front side of the second transverse plate (91). The number of the liquid outlet holes (96) is three and they are respectively connected to the three cavities M1, M2 and M3. A one-way valve is installed on the back of the liquid outlet hole (96). A lifting device (97) is movably installed on the top of the second transverse plate (91). A four-way pipe (98) is fixedly installed on the front of the liquid guide shell (92) near the top. The input ends of the four-way pipe (98) are respectively connected to the liquid outlet holes (96), and the output end of the four-way pipe (98) is connected to the water spraying equipment (8). A liquid inlet hole (99) is opened near the middle of the bottom of the second transverse plate (91), and the liquid inlet hole (99) is connected to the water supply equipment.

6. The conveying device for mining according to claim 5, characterized in that: The lifting device (97) includes a lifting platform (971), a transmission rod (972) is movably installed on the top of the lifting platform (971), one end of the transmission rod (972) is movably sleeved with the push rod (402), and spring telescopic rods (973) are fixedly installed near the middle and at both ends of the bottom of the lifting platform (971), the spring telescopic rods (973) pass through the top of the second transverse plate (91) and extend into the M1 and M3 cavities, and a pressure plate (974) is fixedly installed on the bottom of the spring telescopic rod (973), and the lifting platform (971) and the inner wall of the second transverse plate (91) and the partition (93) are sealed. The pressure plate (974) is located above the bypass hole (95); The length of the spring telescopic rod (973) located in the middle is shorter than the spring telescopic rods (973) located on both sides.

7. The conveying device for mining according to claim 5, characterized in that: The conveyor belt (2) includes a conveyor belt (21), and matching protrusions (22) are provided at positions near both ends of the bottom of the conveyor belt (21), and the spacing between the fan-shaped clamping block (48) and the right annular clamping plate (45) matches the matching protrusions (22).

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