A conveying device for mining

Abstract

The application relates to the technical field of mineral conveying, and discloses a conveying device for mine exploitation, which comprises a first transverse plate, a connecting seat is fixedly arranged on the front surface of the first transverse plate, spring rotating rods are movably arranged at the two ends of the connecting seat, a second connecting shaft sleeve is movably arranged at the front end of the spring rotating rod, and the second connecting shaft sleeve is movably arranged at the tail end of a central shaft. The rear end of a clamping device is displaced by a small distance under the pulling action of the spring rotating rod, the two ends of a conveying belt are moved upwards by the clamping device, so that the overall bending degree of the conveying belt is increased, the mineral amount that can be carried by the overall conveying belt is increased, the rotating rollers in a traditional conveying device are arranged in a limiting sleeve mode, the shape of the conveying belt is fixed, when the mineral amount is increased, the minerals are prone to overflowing from the two sides of the conveying belt, and the application file can well avoid the problem, and the reliability of the device is improved.

Description

Technical Field

[0001] This application relates to the field of mineral conveying technology, and in particular to a conveying device used in mining. Background Technology

[0002] In mining operations, conveyor systems are used to transport mined minerals to processing sites for efficient transport. Traditional conveyor systems consist of a power unit, a support structure, and a conveyor belt. The transmission system mainly comprises a support frame and three drive rollers. The positions of the three drive rollers are fixed, with the middle support roller arranged laterally and the two side support rollers arranged at an angle to the horizontal plane. This causes the conveyor belt to bend as it passes over the support rollers, resulting in a shape that is higher on both sides and lower in the middle. This effectively increases the load-bearing capacity of the conveyor belt and prevents minerals from spilling out from the sides. However, in actual use, due to the fixed shape of the conveyor belt, minerals may still spill out from the sides of the conveyor belt under high loads. Furthermore, the transmission between the drive rollers and the conveyor belt relies on friction, which can easily lead to slippage under high loads or when conveying at varying heights. To address these issues, this application proposes a conveyor system for mining operations. Summary of the Invention

[0003] This application proposes a conveying device for mining operations, which has the advantages of variable conveyor belt shape and increased load-bearing capacity, in order to solve the problem of mineral overflow from both sides when the conveyor belt shape is fixed and under high load conditions.

[0004] To achieve the above objectives, this application adopts the following technical solution: a conveying device for mining operations, comprising a base plate and a conveyor belt, a bearing device fixedly installed on the top of the base plate, clamping devices movably installed at both ends of the bearing device, the conveyor belt passing through and contacting the top of the bearing device and the clamping devices, mounting brackets fixedly installed on the top of the base plate near both sides, a traction device fixedly installed on the back of the mounting bracket near the middle, the traction device being connected to the clamping devices, a top plate fixedly installed on the back of the mounting bracket above the traction device, a water spraying device fixedly installed at the bottom of the top plate, and a liquid guiding device fixedly installed on the back of the mounting bracket below the traction device, the liquid guiding device being connected to both the clamping devices and the water spraying devices.

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

[0006] Furthermore, the clamping device includes a central shaft, a first connecting sleeve is movably sleeved at the front end of the central shaft, the first connecting sleeve is movably connected to a connecting hinge, the tail end of the central shaft is movably sleeved with a traction device, a sleeve is provided on the outer surface of the central shaft near the first connecting sleeve, and an outer sleeve is sleeved on the outer surface of the sleeve, and a limit groove is formed on the outer surface of the central shaft at the position between the traction device and the outer sleeve;

[0007] Specifically, the outer surface of the outer sleeve is provided with annular clamps, which are distributed in a linear array along the axial direction of the outer sleeve. Stroke holes are opened on the outer surface of the outer sleeve at positions between the annular clamps, and these stroke holes are distributed in an annular array. An inner sleeve is movably installed inside the outer sleeve.

[0008] Specifically, a fan-shaped clamping block is fixedly installed on the outer surface of the inner sleeve. The fan-shaped clamping blocks are distributed in a rectangular array. The fan-shaped clamping blocks correspond one-to-one with the stroke holes and extend from the inside of the stroke holes. A connecting rod is fixedly installed above and below one end of the inner wall of the inner sleeve. A connecting shaft plate is fixedly installed at one end of the connecting rod. A push rod is movably sleeved inside the connecting shaft plate.

[0009] Specifically, the connecting rod passes through the limiting groove and extends into the interior of the central shaft;

[0010] Specifically, in its initial state, the fan-shaped clamping block is located to the left of the travel hole and is in contact with the left annular clamping plate, and there is a gap between it and the right annular clamping plate, which is in contact with the conveyor belt.

[0011] Furthermore, the traction device includes a first transverse plate, a connecting seat is fixedly installed on the front side of the first transverse plate, and spring rotating rods are movably sleeved at both ends of the connecting seat. A second connecting shaft sleeve is movably sleeved at the front end of the spring rotating rod, and the second connecting shaft sleeve is movably sleeved with the tail end of the central shaft.

[0012] Furthermore, the liquid guiding device includes a second transverse plate. A liquid guiding shell is fixedly installed on the front of the second transverse plate. The liquid guiding shell has two partitions inside, dividing the inner cavity of the liquid guiding shell into three independent chambers: 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 fitted on the inner side of the partition above the liquid-blocking flap. A liquid outlet is provided on the front of the second transverse plate near the top. There are three liquid outlets, which are respectively connected to the three chambers 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 of the liquid guiding shell near the top. The input end of the four-way pipe is connected to the liquid outlet, and the output end of the four-way pipe is connected to the water spraying equipment. 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.

[0013] 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 a push rod, and spring telescopic rods are fixedly installed at the bottom of the lifting platform near the middle and at both ends. The spring telescopic rods pass through the top of the second transverse plate and extend into the cavities M1 and M3. A pressure plate is fixedly installed at the bottom of the spring telescopic rods. The lifting platform, the inner wall of the second transverse plate, and the partition are sealed.

[0014] Specifically, the pressure plate is located above the bypass hole;

[0015] Specifically, the length of the spring telescopic rod located in the middle is shorter than that of the spring telescopic rods located on both sides.

[0016] Furthermore, the conveyor belt includes a conveyor belt, and the bottom of the conveyor belt near both ends is provided with mating protrusions, and the gap between the fan-shaped clamping block and the right-side annular clamping plate is mated with the mating protrusions.

[0017] This application has the following beneficial effects.

[0018] Under high load, this device moves the two ends of the conveyor belt upwards and the middle position downwards, increasing the belt's bending degree and thus improving its load-bearing capacity. This prevents minerals from overflowing from both sides of the conveyor belt. Furthermore, the interlocking of the annular clamps and fan-shaped clamps with corresponding protrusions effectively enhances the lateral restraint of the conveyor belt, preventing increased bending at the alternating positions of the clamping device and rotating rollers, which could damage the conveyor belt structure. When there is a large amount of minerals on the top of the conveyor belt, the water supply equipment needs to provide greater water pressure to push the pressure plate upwards, thereby increasing the amount of water entering the spraying equipment through the outlet and four-way pipe. This improves the spraying efficiency of the equipment, ensuring that even with increased mineral load and dust pollution on the top of the conveyor belt, the dust suppression efficiency of the spraying equipment can still be improved, thus enhancing the device's environmental performance. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0020] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0021] Figure 1 This is a structural installation diagram of the present invention;

[0022] Figure 2 This is a structural diagram of the present invention;

[0023] Figure 3 This is a cross-sectional view of the main structure of the present invention;

[0024] Figure 4 This is a diagram of the structural support device of the present invention;

[0025] Figure 5 This is a cross-sectional view of the structural support device of the present invention;

[0026] Figure 6 This is a diagram of the clamping device of the present invention;

[0027] Figure 7 This is a cross-sectional view of the clamping device of the present invention;

[0028] Figure 8 This is an exploded view of the clamping device of the present invention;

[0029] Figure 9 This is a diagram of the traction device structure of the present invention;

[0030] Figure 10 This is a diagram of the liquid guiding device of the present invention;

[0031] Figure 11This is a structural diagram of the internal structure of the liquid guiding device of the present invention;

[0032] Figure 12 This is a diagram of the lifting device structure of the present invention;

[0033] Figure 13 This is a structural diagram of the liquid-conducting outer shell of the present invention;

[0034] Figure 14 This is a structural diagram of the conveyor belt of the present invention;

[0035] Figure 15 This is a force analysis diagram of the push rod and transmission rod in the structure of this invention.

[0036] In the diagram: 1. Base plate; 2. Conveyor belt; 21. Conveyor belt; 22. Matching 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. Central shaft; 42. First connecting bushing; 43. Outer sleeve; 44. Limiting groove; 45. Annular clamping plate; 46. Stroke hole; 47. Inner sleeve; 48. Fan-shaped clamping block; 49. Connecting rod; 401. Connecting shaft plate; 402. Push rod 5. Mounting bracket; 6. Traction device; 61. First transverse plate; 62. Connecting seat; 63. Spring rotating rod; 64. Second connecting bushing; 7. Top plate; 8. Water spraying equipment; 9. Liquid guiding device; 91. Second transverse plate; 92. Liquid guiding shell; 93. Partition plate; 94. Liquid blocking valve; 95. Bypass hole; 96. Liquid outlet hole; 97. Lifting device; 971. Lifting platform; 972. Transmission rod; 973. Spring telescopic rod; 974. Pressure plate; 98. Four-way pipe; 99. Liquid inlet hole. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] A conveying device used in mining operations, please refer to [link / reference]. Figures 1-3The system includes a base plate 1 and a conveyor belt 2. A bearing device 3 is fixedly installed on the top of the base plate 1. Clamping devices 4 are movably installed at both ends of the bearing device 3. The conveyor belt 2 passes through and contacts the top of the bearing device 3 and the clamping devices 4. Mounting brackets 5 are fixedly installed on the top of the base plate 1 near both 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 devices 4. A top plate 7 is fixedly installed on the back of the mounting bracket 5 above the traction device 6. A water spraying device 8 is fixedly installed at the bottom of the top plate 7. A liquid guiding device 9 is fixedly installed on the back of the mounting bracket 5 below the traction device 6. The liquid guiding device 9 is connected to the clamping devices 4 and the water spraying device 8, respectively.

[0039] Please see Figures 4-5 The supporting device 3 includes a base 31. Limiting rods 32 are fixedly installed on the top of the base 31 near both ends. A lifting column 33 is movably installed on the top of the limiting rods 32 through telescopic cooperation. A lifting spring 34 is provided at the bottom of the lifting column 33 outside the limiting rods 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 fitted inside the circular hole. The outer surface of the rotating roller 35 is in contact with the bottom surface of the conveyor belt 2. A connecting hinge 36 is movably installed on the top of the lifting column 33 through a hinge connection. One end of the connecting hinge 36 is connected to the clamping device 4 through the hinge.

[0040] 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 perform a limiting function on the cooperating protrusion 22 to prevent the conveyor belt 21 from deforming under the heavy pressure of the minerals, which would increase the contact area between the conveyor belt 21 and the rotating roller 35 and decrease the contact area with the clamping device 4, causing increased wear at the contact point between the bottom surface of the conveyor belt 21 and 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, which would cause damage to the structure of the conveyor belt 2, thus improving the reliability of the device.

[0041] Please see Figures 2-3 and Figures 6-8 The clamping device 4 includes a central shaft 41. A first connecting sleeve 42 is movably sleeved on the front end of the central shaft 41. 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 an outer sleeve 43 is sleeved on the outer surface of the sleeve. A limit groove 44 is provided on the outer surface of the central shaft 41 at the position between the traction device 6 and the outer sleeve 43.

[0042] Please see Figures 6-8 The outer surface of the outer sleeve 43 is provided with an annular clamping plate 45, which is distributed in a linear array along the axial direction of the outer sleeve 43. The outer surface of the outer sleeve 43 is provided with stroke holes 46 at the positions between the annular clamping plates 45, which are distributed in an annular array. The inner sleeve 47 is movably installed inside the outer sleeve 43.

[0043] Please see Figures 6-8 A sector-shaped clamping block 48 is fixedly installed on the outer surface of the inner sleeve 47. The sector-shaped clamping blocks 48 are distributed in a rectangular array. The sector-shaped clamping blocks 48 correspond one-to-one with the stroke holes 46 and extend from the inside of the stroke holes 46. A connecting rod 49 is fixedly installed above and below one end of the inner wall of the inner sleeve 47. A connecting shaft plate 401 is fixedly installed at one end of the connecting rod 49. A push rod 402 is movably sleeved inside the connecting shaft plate 401.

[0044] Please see Figures 6-8 The connecting rod 49 passes through the limiting groove 44 and extends into the interior of the central shaft 41;

[0045] Please see Figure 2 and Figures 6-8 In its initial state, the fan-shaped clamping block 48 is located to the left of the stroke hole 46 and is in contact with the left annular clamping plate 45, and there is a gap between it and the right annular clamping plate 45, which is in contact with the conveyor belt 2.

[0046] Please see Figures 8-9 The traction device 6 includes a first transverse plate 61. A connecting seat 62 is fixedly installed on the front side of the first transverse plate 61. Spring rotating rods 63 are movably sleeved at both ends of the connecting seat 62. A second connecting shaft sleeve 64 is movably sleeved at the front end of the spring rotating rod 63. The second connecting shaft sleeve 64 is movably sleeved with the tail end of the central shaft 41.

[0047] The gap between the fan-shaped clamping block 48 and the right-side annular clamping plate 45, along with the matching protrusion 22, effectively increases the contact friction between the conveyor belt 2, the rotating roller 35, and the clamping device 4, preventing slippage between the contact surfaces. Furthermore, when the top of the conveyor belt 21 carries a large amount of mineral, concentrated near the center of the top, the conveyor belt 21 deforms under the pressure of the mineral, causing the rotating roller 35 and the lifting column 33 to move downwards. Since one end of the connecting hinge 36 is connected to the clamping device 4, and the second connecting bushing 64 is movably fitted to the end of the central shaft 41, while the spring rotating rod 63 is telescopic and elastic, the rotation... During the downward movement of roller 35, the front end of clamping device 4 will move downward. The rear end of clamping device 4 will have a smaller displacement distance under the pull of spring rotating rod 63, which increases the angle between the axis of rotating roller 35 and the axis of clamping device 4. Clamping device 4 pushes both ends of conveyor belt 21 upward, thereby increasing the overall bending degree of conveyor belt 2 and increasing the amount of mineral that conveyor belt 2 can carry. In traditional conveying devices, the rotating roller is installed by limiting sleeve, which fixes the shape of the conveyor belt. When the amount of mineral increases, it is easy for mineral to overflow from both sides of the conveyor belt. This application document avoids this problem and improves the reliability of the device.

[0048] When the rotating roller 35 moves down and drives the clamping device 4 to move synchronously, the spring rotating rod 63 is stretched and generates tension. The tension is transmitted to the end of the central shaft 41 through the second connecting bushing 64. Since a bushing is provided on the outer surface of the central shaft 41 near the first connecting bushing 42, and an outer sleeve 43 is fitted on the outer surface of the bushing, the tension acts on the outer sleeve 43 and causes displacement. This 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 on the mating protrusion 22. This increases the friction between the clamping device 4 and the conveyor belt 2, so that when the amount of minerals carried on the top of the conveyor belt 2 increases, the friction between the clamping device 4 and the conveyor belt 2 can also increase synchronously. This avoids the problem of slippage of the conveyor belt 2 due to the increased load, and improves the practicality of the device. Meanwhile, at low loads on conveyor belt 2, 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, which avoids excessive wear on the mating protrusion 22 and improves the service life of the device.

[0049] Please see Figures 10-13The liquid guiding device 9 includes a second transverse plate 91. A liquid guiding shell 92 is fixedly installed on the front of the second transverse plate 91. Two partitions 93 are provided inside the liquid guiding shell 92, dividing the inner cavity of the liquid guiding shell 92 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. A bypass hole 95 is movably fitted on the inner side of the partition 93 above the liquid-blocking flap 94. A liquid outlet hole 96 is provided on the front of the second transverse plate 91 near the top. There are three outlet holes 96, which are connected to the three cavities M1, M2 and M3 respectively. A single-way valve is installed on the back of the outlet hole 96. A lifting device 97 is movably installed on the top of the second horizontal plate 91. A four-way pipe 98 is fixedly installed on the front of the liquid guide shell 92 near the top. The input end of the four-way pipe 98 is connected to the outlet hole 96, and the output end of the four-way pipe 98 is connected to the water spraying device 8. An inlet hole 99 is opened at the bottom of the second horizontal plate 91 near the middle. The inlet hole 99 is connected to the water supply device.

[0050] Please see Figure 12 , Figure 10 and Figure 8 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. Spring telescopic rods 973 are fixedly installed at the bottom of the lifting platform 971 near the middle and at both ends. The spring telescopic rods 973 pass through the top of the second transverse plate 91 and extend into the cavities M1 and M3. A pressure plate 974 is fixedly installed at the bottom of the spring telescopic rods 973. The lifting platform 971, the inner wall of the second transverse plate 91, and the partition 93 are sealed.

[0051] Please see Figures 11-13 The pressure plate 974 is located above the bypass hole 95;

[0052] Please see Figure 12 The length of the spring telescopic rod 973 located in the middle is shorter than that of the spring telescopic rods 973 located on both sides.

[0053] Please see Figure 8 and Figure 14 The conveyor belt 2 includes a conveyor belt 21. The bottom of the conveyor belt 21 is provided with mating protrusions 22 near both ends. The gap between the fan-shaped clamping block 48 and the right-side annular clamping plate 45 is mated with the mating protrusions 22.

[0054] The increase in the amount of mineral at the top of the conveyor belt 21 causes a change in the posture of the clamping device 4, which reduces the angle A between the transmission rod 972 and the push rod 402. This results in a decrease in the component F2 of the thrust Fm generated by the transmission rod 972 on the push rod 402 along the axis of the push rod 402 when the lifting device 97 moves upward as a whole, compared to the component F1 in the initial state (see [reference]). Figure 15 This increases the resistance encountered by the lifting device 97 during the lifting process. During dust removal operations, water needs to be supplied through the water supply equipment and the liquid inlet 99 into the M2 cavity inside the second horizontal plate 91. At this time, the device is in a vertical state, and the liquid blocking plates 94 are all in a vertical state and the bypass hole 95 is blocked. At this time, the water supplied into the second horizontal plate 91 fills the M2 cavity, and enters the interior of the water spraying device 8 through the liquid outlet 96, the four-way pipe 98 and the connecting pipe, and is sprayed out through the nozzle to reduce dust. When there is a large amount of minerals on the top of the conveyor belt 21, the water supply equipment needs to provide greater water pressure to push the pressure plate 974 upward, thereby increasing the amount of water entering the interior of the water spraying device 8 through the liquid outlet 96 and the four-way pipe 98, thus improving the spraying efficiency of the water spraying device 8. This achieves the goal of simultaneously improving the dust reduction 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, thereby improving the environmental protection efficiency of the device.

[0055] During the downward movement of the rotating roller 35, to avoid excessive clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 on the mating protrusion 22, when the lifting device 97 moves upward under water pressure, the transmission rod 972 is displaced, pushing the push rod 402 and causing the inner sleeve 47 to move closer to the first connecting bushing 42. This reduces 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 avoids excessive wear on the mating protrusion 22 as much as possible. Furthermore, when the mineral content of the conveyor belt 21 increases and the load increases, the angle A between the transmission rod 972 and the push rod 402 decreases. While the thrust Fm generated by the transmission rod 972 remains unchanged, the component force F2 along the direction of the push rod 402 decreases (see...). Figure 15 The effect of reducing the clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 on the mating protrusion 22 is reduced, thereby increasing the clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 on the mating protrusion 22. This achieves the effect that the clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 increases with the amount of minerals carried on the top of the conveyor belt 21, ensuring that the conveyor belt 21 will not slip under high load.

[0056] The method of using this invention is as follows:

[0057] The gap between the fan-shaped clamping block 48 and the right-side annular clamping plate 45, along with the matching protrusion 22, effectively increases the contact friction between the conveyor belt 2, the rotating roller 35, and the clamping device 4, preventing slippage between the contact surfaces. Furthermore, when the top of the conveyor belt 21 carries a large amount of mineral, concentrated near the center of the top, the conveyor belt 21 deforms under the pressure of the mineral, causing the rotating roller 35 and the lifting column 33 to move downwards. Since one end of the connecting hinge 36 is connected to the clamping device 4, and the second connecting bushing 64 is movably fitted onto the end of the central shaft 41, the spring... The rotating rod 63 is telescopic and elastic, causing the front end of the clamping device 4 to move downwards as the rotating roller 35 moves downwards. The rear end of the clamping device 4, under the pull of the spring rotating rod 63, has a smaller displacement distance, increasing the angle between the axis of the rotating roller 35 and the axis of the clamping device 4. The clamping device 4 pushes both ends of the conveyor belt 21 upwards, increasing the overall curvature of the conveyor belt 2 and thus increasing the amount of minerals it can carry. When the rotating roller 35 moves downwards and moves the clamping device 4 synchronously, the spring rotating rod 63 is stretched and generates tension, which is transmitted through the second connecting sleeve 64 to the central shaft. The tail end of 41 is movably sleeved, allowing the second connecting bushing 64 to transmit the tension to the end of the central shaft 41. Since a bushing is located on the outer surface of the central shaft 41 near the first connecting bushing 42, and an outer sleeve 43 is fitted onto the outer surface of this bushing, the tension acts on the outer sleeve 43 and causes displacement. This shortens the distance between the fan-shaped clamping block 48 and the right-side annular clamping plate 45, and increases the clamping force on the mating protrusion 22. This increases the friction between the clamping device 4 and the conveyor belt 2, thus ensuring that as the amount of minerals carried on the top of the conveyor belt 2 increases, the friction between the clamping device 4 and the conveyor belt 2 also increases synchronously, eliminating… Besides the slippage problem, 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 achieve a limiting function with the mating protrusion 22. After the increase in the amount of minerals on the top of the conveyor belt 21 causes a change in the posture of the clamping device 4, the angle A between the transmission rod 972 and the push rod 402 will decrease. This causes the component 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 to decrease compared with the component F1 in the initial state when the lifting device 97 moves upward as a whole (see...). Figure 15This increases the resistance encountered by the lifting device 97 during the lifting process. During dust removal, water needs to be supplied through the water supply equipment and the inlet hole 99 into the M2 cavity inside the second horizontal plate 91. At this time, the device is in a vertical position, and the liquid-blocking plates 94 are all in a vertical position, blocking the bypass hole 95. The water supplied into the second horizontal plate 91 fills the M2 cavity and enters the water spraying device 8 through the outlet hole 96, the four-way pipe 98, and the connecting pipe, and is sprayed out through the nozzles 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 greater water pressure to push the pressure plate 974 upward, thereby increasing the amount of water entering the water spraying device 8 through the outlet hole 96 and the four-way pipe 98, thus improving the spraying efficiency of the water spraying device 8. This allows for the effective removal of dust when the amount of minerals on the top of the conveyor belt 21 increases and more dust is generated. When dust pollution occurs, the dust reduction efficiency of the water spraying equipment 8 can also be improved simultaneously. During the downward movement of the rotating roller 35, in order to avoid excessive clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 on the mating protrusion 22, when the lifting device 97 moves upward 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 closer to the first connecting bushing 42. This can reduce 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 avoids excessive wear on the mating protrusion 22 as much as possible. Furthermore, when the mineral content of the conveyor belt 21 increases and the load increases, the included angle A between the transmission rod 972 and the push rod 402 decreases. While the thrust Fm generated by the transmission rod 972 remains unchanged, the component force F2 along the direction of the push rod 402 decreases (see...). Figure 15 The effect of reducing the clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 on the mating protrusion 22 is reduced, thereby increasing the clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 on the mating protrusion 22. This achieves the effect that the clamping force of the annular clamping plate 45 and the fan-shaped clamping block 48 increases with the increase of the amount of minerals carried on the top of the conveyor belt 21.

Claims

1. A mine with a conveying device, characterized in that, The utility model provides a kind of water spraying device for conveying belt, including bottom plate (1) and conveying belt (2), the top of the bottom plate (1) is fixedly installed with bearing device (3), the both ends of the bearing device (3) are movably installed with clamping device (4), conveying belt (2) passes through and contacts from the top of bearing device (3) and clamping device (4), the top of the bottom plate (1) is fixedly installed with mounting bracket (5) on the position close to both sides, the back of the mounting bracket (5) is fixedly installed with traction device (6) on the position close to middle, the traction device (6) is connected with clamping device (4), the back of the mounting bracket (5) is fixedly installed with top plate (7) on the position above traction device (6), the bottom of the top plate (7) is fixedly installed with water spraying equipment (8), the back of the mounting bracket (5) is fixedly installed with liquid guide device (9) on the position below traction device (6), and the liquid guide device (9) is connected with clamping device (4) and water spraying equipment (8) respectively;The bearing device (3) includes base (31), the top of the base (31) is fixedly installed with limit rod (32) on the position close to both ends, the top of the limit rod (32) is movably installed with lifting column (33) by telescopic cooperation, the bottom of the lifting column (33) is provided with lifting spring (34) on the position outside limit rod (32), the bottom of the lifting spring (34) is in contact with the top of the base (31), the side of the lifting column (33) is close to the position of top and is provided with round hole, and the round hole is provided with rotating roller (35) in the inside, the outer surface of the rotating roller (35) is in contact with the bottom of conveying belt (2), the top of the lifting column (33) is movably installed with connecting hinge (36) by hinge connection, one end of connecting hinge (36) is connected with clamping device (4) by hinge;The clamping device (4) includes center shaft (41), the front end of the center shaft (41) is movably sleeved with first connecting shaft sleeve (42), the first connecting shaft sleeve (42) is movably connected with connecting hinge (36), the tail end of the center shaft (41) is movably sleeved with traction device (6), the outer surface of the center shaft (41) is provided with shaft sleeve on the position close to first connecting shaft sleeve (42), and the outer surface of the shaft sleeve is sleeved with outer sleeve (43), the outer surface of the center shaft (41) is provided with limit sliding slot (44) on the position between traction device (6) and outer sleeve (43); The outer surface of the outer sleeve (43) is provided with annular clamping plate (45), the annular clamping plate (45) is distributed in linear array with the axis direction of outer sleeve (43), the outer surface of the outer sleeve (43) is provided with stroke hole (46) on the position between annular clamping plate (45), the stroke hole (46) is distributed in annular array, the inside of the outer sleeve (43) is movably installed with inner sleeve (47). The outer surface of the inner sleeve (47) is fixedly installed with fan-shaped clamping blocks (48), 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 holes (46), the upper and lower ends of the inner wall of the inner sleeve (47) are fixedly installed with connecting rods (49), one end of the connecting rod (49) is fixedly installed with a connecting shaft plate (401), the inside of the connecting shaft plate (401) movably sheathes a push rod (402); The connecting rod (49) passes through the limiting sliding groove (44) and extends to the inside of the central shaft (41); The fan-shaped clamping blocks (48) are in the initial state and are located on the left side of the stroke holes (46) and are in contact with the left annular clamping plates (45), and there is a gap between the fan-shaped clamping blocks (48) and the right annular clamping plates (45), the gap is in contact with the conveying belt (2); the traction device (6) comprises a first transverse plate (61), the front surface of the first transverse plate (61) is fixedly installed with a connecting seat (62), both ends of the connecting seat (62) movably sheathes a spring rotating rod (63), the front end of the spring rotating rod (63) movably sheathes a second connecting shaft sleeve (64), and the second connecting shaft sleeve (64) movably sheathes the tail end of the central shaft (41); the conveying belt (2) comprises a conveying belt (21), the bottom of the conveying belt (21) is provided with a matching protrusion (22) near both ends, and the gap between the fan-shaped clamping blocks (48) and the right annular clamping plates (45) is matched with the matching protrusion (22).

2. A mine with a conveying device according to claim 1, characterized in that, The liquid guiding device (9) comprises a second transverse plate (91), the front surface of the second transverse plate (91) is fixedly installed with a liquid guiding shell (92), the inside of the liquid guiding shell (92) is provided with a partition plate (93), the number of the partition plate (93) is two, and the inside of the partition plate (93) divides the inner cavity of the liquid guiding shell (92) into three independent cavities M1, M2 and M3, a liquid blocking movable plate (94) is arranged on the inner side of the partition plate (93) and near the middle, a bypass hole (95) is movably arranged on the inner side of the partition plate (93) and above the liquid blocking movable plate (94), a liquid outlet hole (96) is arranged on the front surface of the second transverse plate (91) and near the top, the number of the liquid outlet hole (96) is three and the liquid outlet hole (96) is in communication with the three cavities M1, M2 and M3 respectively, a single-way valve is arranged on the back of the liquid outlet hole (96), a lifting device (97) is movably arranged on the top of the second transverse plate (91), a four-way pipe (98) is fixedly arranged on the front surface of the liquid guiding shell (92) and near the top, the input end of the four-way pipe (98) is in communication with the liquid outlet hole (96), the output end of the four-way pipe (98) is in communication with the water spraying equipment (8), and a liquid inlet hole (99) is arranged on the bottom of the second transverse plate (91) and near the middle, and the liquid inlet hole (99) is connected with the water supply equipment.

3. A mine with a conveying device according to claim 2, characterized in that, The lifting device (97) comprises a lifting platform (971), the top of the lifting platform (971) is movably provided with a transmission rod (972), one end of the transmission rod (972) is movably sleeved with a push rod (402), the bottom of the lifting platform (971) is movably provided with spring telescopic rods (973) near the middle and both ends, the spring telescopic rods (973) penetrate through the top of the second transverse plate (91) and extend into the M1 and M3 cavities, the bottom of the spring telescopic rods (973) is fixedly provided with pressure receiving plates (974), and the lifting platform (971), the inner wall of the second transverse plate (91) and the partition plate (93) are subjected to sealing treatment; The pressure receiving plates (974) are located above the bypass holes (95); The length of the spring telescopic rod (973) located in the middle is smaller than that of the spring telescopic rods (973) located at both sides.

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