Coal conveying belt deviation rectifying device and coal conveyor of thermal power plant

Abstract

The embodiment of the invention provides a coal conveying belt deviation rectifying device and a coal conveyor of a thermal power plant. The coal conveying belt deviation rectifying device comprises a base, a containing frame, a deviation rectifying roller assembly, an ash removing mechanism and a control box. The conveying carrier rollers are rotatably arranged on the rack in the width direction of the rack; the base and the placing frame are both arranged on the rack; the deviation rectifying roller assembly is rotatably arranged on the base in the height direction of the rack so as to rectify deviation of a belt. The ash removal mechanism is arranged at the top of the containing frame to remove coal ash on the surface of the conveying carrier roller, the control box is arranged in the middle of the top of the containing frame, and the control box corresponds to the ash removal mechanism and the deviation rectifying roller assembly in an electric signal mode. Therefore, the deviation correcting device for the coal conveying belt has the advantage of preventing and correcting the problems of belt abrasion and material leakage caused by deviation of the belt.

Description

Technical Field

[0001] The invention relates to the technical field of coal conveying equipment, and in particular to a coal conveying belt deviation correcting device and a coal conveyor for a thermal power plant. Background Art

[0002] Thermal power plants are referred to as thermal power plants. A large amount of coal is needed in thermal power plants, and belt conveyors are needed to transport coal. Belt conveyors are continuous conveying equipment that uses belts as material-carrying components.

[0003] During the use of existing belt conveyors, after a long period of use, coal ash will accumulate on the surface of the rollers to form a coal ash layer. When the coal ash layer on the surface of the rollers has different thicknesses, it will affect the angle of the belt during operation. In addition, since the material carried by the belt is unevenly distributed, it is easy to cause the belt to deviate, resulting in material leakage, belt frame wear, and shutdown and idling, affecting the power generation efficiency. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention provides a coal conveyor belt deviation correction device. The coal conveyor belt deviation correction device can solve the problems of coal ash accumulation on the roller surface and belt deviation mentioned in the above background technology.

[0005] An embodiment of the present invention provides a coal conveyor for a thermal power plant.

[0006] The coal conveyor belt deviation correction device of the embodiment of the present invention comprises a base, a placement frame, a deviation correction roller assembly, a dust cleaning mechanism and a control box. The conveying roller is rotatably arranged on the frame around the width direction of the frame; the base and the placement frame are both arranged on the frame; the deviation correction roller assembly is rotatably arranged on the base around the height direction of the frame to correct the belt, and the deviation correction roller assembly and the conveying roller are arranged at intervals in the conveying direction; the dust cleaning mechanism is arranged on the top of the placement frame to remove the coal dust on the surface of the conveying roller, and the control box is arranged in the middle of the top of the placement frame, and the control box responds to the electrical signals of the dust cleaning mechanism and the deviation correction roller assembly.

[0007] The coal conveyor belt deviation correction device of the embodiment of the present invention cleans the coal ash on the surface of the roller by means of the dust cleaning mechanism and the deviation correction roller assembly, thereby preventing the belt deviation caused by the accumulation of coal ash and the subsequent leakage of materials and wear of the belt frame. In addition, the deviation correction roller assembly can correct the deviation of the belt that has already been deviated, further avoiding the problems of material leakage and wear of the belt frame, and helping to improve the coal conveying efficiency.

[0008] Therefore, the coal conveyor belt deviation correction device of the embodiment of the present invention has the advantage of preventing and correcting the problems of belt wear and material leakage caused by belt deflection.

[0009] In some embodiments, the cleaning mechanism includes a first motor, a bevel gear assembly and a scraper assembly, the first motor is connected to the placement rack, the output end of the first motor is fixedly connected to the bevel gear assembly, the placement rack is provided with the scraper assembly on both sides of the width direction of the frame, the scraper assembly is meshed with the bevel gear assembly to drive the scraper assembly to move relative to the conveying roller, and the scraper assembly is arranged in a close fit with the conveying roller to remove the coal ash on the surface of the conveying roller.

[0010] In some embodiments, the bevel gear assembly includes a bevel gear, a driven gear, a driving rod body and at least two fixed gears, the bevel gear is connected to the output end of the first motor, the driving rod body is arranged on the placement rack, and the driving rod body is arranged along the width direction of the frame, the driven gear and at least two fixed gears are both sleeved on the driving rod body, the bevel gear is meshed with the driven gear, and the fixed gear is meshed with the scraper assembly.

[0011] In some embodiments, the scraper assembly includes a rotating rod, a push rod and a scraper, the rotating rod is rotatably installed on the frame and extends along the height direction of the frame, the end of the rotating rod is meshed with the fixed gear through a conical mating tooth, the rotating rod is vertically connected to the push rod, and the scraper is connected to one end of the push rod away from the placement rod.

[0012] In some embodiments, a receiving groove is provided on the placement rack, a first magnetic sheet is fixedly connected to the interior of the top end of the scraper, and a first induction plate adapted to the first magnetic sheet is provided on one side of the placement rack to respond to the push rod and the scraper being received in the receiving groove when no cleaning operation is performed, and the first magnetic sheet and the first induction plate are correspondingly connected to the electrical signal of the control box.

[0013] In some embodiments, the push rod is an electric telescopic rod.

[0014] In some embodiments, the surface of the scraper is covered with a layer of soft brush.

[0015] In some embodiments, the coal conveyor belt correction device also includes an arc plate and a monitor, the two ends of the arc plate are respectively connected to the two sides of the width direction of the placement rack, and the middle part of the top of the arc plate is fixedly connected with a monitor, and the monitor is connected to the control box signal accordingly.

[0016] In some embodiments, the coal conveyor belt correction device also includes a laser sensing component, which includes a bidirectional laser instrument, a cleaning ring and a flipping mechanism. The bidirectional laser instrument is arranged on the flipping mechanism, and the flipping mechanism is rotatably arranged on the placement rack to flip the bidirectional laser instrument. The cleaning ring is in contact with the end of the bidirectional laser instrument.

[0017] In some embodiments, the flipping mechanism of the coal conveyor belt correction device includes a dual-axis stepper motor, a connecting pipe and a laser clamping rod, the two output ends of the dual-axis stepper motor extend along the width direction of the frame, the two output ends of the dual-axis stepper motor are fixedly connected to the connecting pipe, the end of the connecting pipe is connected to the laser clamping rod, the bidirectional laser instrument is fixedly sleeved on the laser clamping rod to drive the bidirectional laser instrument to flip by rotating the connecting pipe, the cleaning ring can be contactably arranged at the lower end of the bidirectional laser instrument to clean the end of the bidirectional laser instrument, both ends of one side of the surface of the bidirectional laser instrument are fixedly connected with second magnetic sheets, one end of one of the second magnetic sheets contacts with a second induction plate, one end of the second induction plate is fixedly connected with a power-on plate, and the bottom of one end of the power-on plate is fixedly connected with the cleaning ring.

[0018] In some embodiments, the correction roller assembly of the coal conveyor belt correction device includes a rotating mechanism, a support frame and a correction roller. The upper end surface of the correction roller is arranged flush with the upper end surface of the conveying roller. The rotating mechanism is rotatably arranged on the base. The rotating axis of the rotating mechanism extends along the up and down directions of the frame. The bottom of the support frame is connected to the rotating mechanism, and the correction roller is rotatably engaged with the top of the support frame.

[0019] ] a gear rotation between the two ends of the support frame and the gear train, and a gear rotation between the two ends of the support frame and the gear train, and a gear rotation between the two ends of the support frame and the gear train, and a gear rotation between the two ends of the support frame and the gear train, and a gear rotation between the two ends of the support frame and the gear train, so that the gear train can be rotated smoothly.

[0020] The coal conveyor of a thermal power plant in an embodiment of the present invention comprises a frame, conveying rollers and a coal conveyor belt deviation correction device for a thermal power plant according to any one of the above items, wherein the conveying rollers are rotatably arranged on the frame around the width direction of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a coal conveyor belt deviation correction device according to an embodiment of the present invention.

[0022] Figure 2 yes Figure 1 Schematic diagram at A.

[0023] Figure 3 It is a schematic diagram of a three-dimensional second viewing angle of a coal conveyor belt deviation correction device according to an embodiment of the present invention.

[0024] Figure 4 yes Figure 3 Schematic diagram at B.

[0025] Figure 5 It is a front schematic diagram of a coal conveyor belt deviation correcting device according to an embodiment of the present invention.

[0026] Figure 6 It is a schematic top view of a coal conveyor belt deviation correction device according to an embodiment of the present invention.

[0027] Figure 7 It is a right side schematic diagram of a coal conveyor belt deviation correcting device according to an embodiment of the present invention.

[0028] Reference numerals:

[0029] Placement rack 1; Storage slot 11;

[0030] Base 2;

[0031] Deviation correction roller assembly 3; rotating mechanism 31; hydraulic cylinder 301; moving plate 302; rotating member 303;

[0032] Rotating shaft 311; supporting seat 312; worm wheel 313; worm 314; second motor 315; supporting rod 316; connecting rod assembly 317;

[0033] Support frame 32; Correction roller 33;

[0034] Dust removal mechanism 4; first motor 41; bevel gear assembly 42; bevel gear 421; driven gear 422; driving rod body 423; fixed gear 424;

[0035] Scraper assembly 43; rotating rod 431; push rod 432; scraper 433;

[0036] Curved plate 6; monitor 7;

[0037] Laser sensing component 8; bidirectional laser instrument 81; dust cleaning ring 82; flip mechanism 83; dual-axis stepping motor 831; connecting tube 832; laser clamping rod 833. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0039] Reference below Figure 1-Figure 7 The invention describes a coal conveyor belt deviation correction device and a coal conveyor for a thermal power plant according to an embodiment of the invention.

[0040] The coal conveyor belt deviation correction device of the embodiment of the present invention comprises a base 2, a placement frame 1, a deviation correction roller 33 assembly 3, a dust cleaning mechanism 4 and a control box.

[0041] The conveyor rollers are arranged in the width direction of the frame (for example, Figure 1 The base 2 and the placement rack 1 are both arranged on the frame; the deviation correction roller 33 assembly 3 is arranged around the height direction of the frame (for example, Figure 1 The upper and lower directions (as shown in the figure) are rotatably arranged on the base 2 to correct the belt, and the correcting roller 33 assembly 3 is arranged at intervals from the conveying roller in the conveying direction; the cleaning mechanism 4 is arranged on the top of the placement rack 1 to remove the coal ash on the surface of the conveying roller, and the control box is arranged in the middle position of the top of the placement rack 1, and the control box responds to the electrical signals of the cleaning mechanism 4 and the correcting roller 33 assembly 3.

[0042] The coal conveyor belt deviation correction device of the embodiment of the present invention cleans the coal ash on the surface of the roller through the dust cleaning mechanism 4 and the deviation correction roller 33 assembly 3, thereby preventing the belt deviation caused by the accumulation of coal ash and the subsequent leakage of materials and wear of the belt frame; in addition, the deviation correction roller 33 assembly 3 can correct the deviation of the belt that has been deviated, further avoiding the problem of material leakage and wear of the belt frame.

[0043] Therefore, the coal conveyor belt deviation correction device of the embodiment of the present invention has the advantage of preventing and correcting the problems of belt wear and material leakage caused by belt deflection.

[0044] Specifically, the rotation axis 311 of the conveying roller extends along the width direction of the placement rack 1 .

[0045] like Figure 1 , Figure 3 and Figure 5As shown, the cleaning mechanism 4 includes a first motor 41, a bevel gear assembly 42 and a scraper assembly 43. The first motor 41 is connected to the placement rack 1. The output end of the first motor 41 is fixedly connected to the bevel gear assembly 42. The scraper assembly 43 is meshed with the bevel gear assembly 42 to drive the scraper assembly 43 to move relative to the conveying roller. The scraper assembly 43 is arranged in close contact with the conveying roller to remove the coal ash on the surface of the conveying roller.

[0046] The coal conveyor belt deviation correction device of the embodiment of the present invention is configured such that the cleaning mechanism 4 is divided into a first motor 41, a bevel gear assembly 42 and a scraper assembly 43. The output end of the first motor 41 is connected to the bevel gear assembly 42 which is fixedly connected, so that the output force of the first motor 41 can be reversed, thereby facilitating the arrangement of this part of the structure.

[0047] like Figures 1 to 5 As shown, the bevel gear assembly 42 includes a bevel gear 421, a driven gear 422, a driving rod body 423 and at least two fixed gears 424. The bevel gear 421 is arranged on the output end of the first motor 41, and the driving rod body 423 is arranged on the placement rack 1. The driven gear 422 and at least two fixed gears 424 are both sleeved on the driving rod body 423. The bevel gear 421 is meshed with the driven gear 422, and the fixed gear 424 is meshed with the scraper assembly 43.

[0048] The coal conveyor belt deviation correction device of the embodiment of the present invention divides the bevel gear assembly 42 into a bevel gear 421, a driven gear 422, a driving rod body 423 and at least two fixed gears 424. The at least two fixed gears 424 can form multiple output forces, so as to reduce the number of motors to be set. Therefore, the coal conveyor belt deviation correction device has the advantage of simplifying the equipment setting.

[0049] Furthermore, the first motor 41 is connected to one side of the top of the placement rack 1 by threads.

[0050] The driving rod body 423 extends along the width direction of the placement rack 1 .

[0051] like Figures 1 to 5 As shown, the scraper assembly 43 includes a rotating rod 431, a push rod 432 and a scraper 433. The rotating rod 431 is rotatably installed on the frame and extends along the height direction of the frame. The end of the rotating rod 431 is meshed with the fixed gear 424 through a conical matching tooth. The rotating rod 431 is vertically connected to the push rod 432, and the scraper 433 is connected to one end of the push rod 432 away from the placement rod.

[0052] The coal conveyor belt deviation correction device of the embodiment of the present invention is configured such that the scraper assembly 43 is divided into a rotating rod 431, a push rod 432 and a scraper 433. The rotating rod 431 is rotatably installed on the frame and extends along the height direction of the frame, so that the rotation of the first motor 41 drives the scraper assembly 43 to rotate in the horizontal direction through the bevel gear assembly 42, thereby controlling the rotation of the scraper 433 and improving the cleaning range of the scraper 433 on the conveying roller.

[0053] Furthermore, the push rod 432 is an electric telescopic rod, which can push the scraper 433 to move. The rotating rod 431 rotates to drive the electric push rod to rotate. One end of the electric push rod is fixedly connected to the scraper 433. The electric push rod can fix the position of the scraper 433. The rotation of the electric push rod can drive the scraper 433 to rotate. When the electric push rod rotates to a suitable position, the electric push rod is started to extend or shorten so that the scraper 433 is pushed to the position where the conveying roller needs to be cleaned. The scraper 433 and the soft brush can clean the surface of the conveying roller. Therefore, the coal conveying belt deviation correction device of the embodiment of the present invention further improves the cleaning range of the scraper 433 on the conveying roller.

[0054] Furthermore, the surface of the scraper 433 is covered with a layer of soft brush, thereby improving the cleaning effect of the conveying roller.

[0055] Specifically, the first motor 41 is connected to one side of the top of the placement rack 1 by a thread, and the placement rack 1 can fix the position of the first motor 41 to ensure that the position of the first motor 41 does not change, and the output end of the first motor 41 is fixedly connected to a bevel gear 421, and the first motor 41 can fix the position of the bevel gear 421, and the output end of the first motor 41 can drive the bevel gear 421 to rotate, and a driven gear 422 is meshed between the teeth of the bevel gear 421, and the rotation of the bevel gear 421 can mesh with the driven gear 422 to rotate, and a driving rod body 423 is fixedly sleeved on the middle part of the driven gear 422, and the driving rod body 423 can fix the position of the driven gear 422, and the rotation of the driven gear 422 can drive the driving rod body 423 to rotate, and both sides of the driving rod body 423 are fixedly connected to fixed gears 424, and the driving rod body 423 can rotate the fixed gears 424 on both sides. 4 is fixed in position, and the driving rod body 423 can drive the fixed gears 424 on both sides to rotate. There is a rotating gear rod meshing between the teeth of the fixed gear 424, and the fixed gear 424 can rotate to mesh with the matching teeth at one end of the rotating rod 431 to rotate. One end of the rotating rod 431 is fixedly connected to the electric push rod to fix the position of the electric push rod. The rotation of the rotating rod 431 can drive the electric push rod to rotate. One end of the electric push rod is fixedly connected to a scraper 433, and the surface of the scraper 433 is covered with a layer of soft brush. The electric push rod can fix the position of the scraper 433, and the rotation of the electric push rod can drive the scraper 433 to rotate. When the electric push rod rotates to a suitable position, the electric push rod is started again, and the electric push rod changes the position of the scraper 433 and pushes the scraper 433 to the position where the roller needs to be cleaned. The scraper 433 and the soft brush can clean the surface of the roller.

[0056] like Figures 1 to 5 As shown, a receiving groove 11 is provided on the placement rack 1, a first magnetic sheet is fixedly connected to the inside of the top of the scraper 433, and a first induction plate adapted to the first magnetic sheet is provided on one side of the placement rack 1 to accommodate the push rod 432 and the scraper 433 in the receiving groove 11 when no cleaning operation is performed.

[0057] The coal conveyor belt deviation correction device of the embodiment of the present invention is connected with a first magnetic sheet fixedly inside the top of the scraper 433, and the scraper 433 can fix the position of the first magnetic sheet. When the scraper 433 moves or rotates, it drives the first magnetic sheet to move or rotate, and the first motor 41 and the electric push rod drive the scraper 433 to reset. A first induction plate adapted to the first magnetic sheet is provided on one side of the placement frame 1, and the placement frame 1 can fix the position of the first induction plate. After the first induction plate contacts the first magnetic sheet, the power supply of the first motor 41 is connected. When the first magnetic sheet is not in contact with the first induction plate, the power supply of the first motor 41 is disconnected.

[0058] like Figure 1 and Figure 5As shown, the coal conveyor belt deviation correction device of the embodiment of the present invention also includes an arc plate 6 and a monitor 7. The two ends of the arc plate 6 are respectively connected to the two sides of the placement rack 1 in the width direction. The middle part of the top of the arc plate 6 is fixedly connected with a monitor, and the monitor is connected accordingly to the control box signal.

[0059] The coal conveyor belt deviation correction device of the embodiment of the present invention is provided with an arc plate 6 and a monitor 7. The monitor 7 is provided on the arc plate 6. The arc plate 6 has a relatively small deformation relative to the straight plate structure, thereby avoiding the problem of large monitoring error caused by the displacement of the monitor 7 due to the deformation of the arc plate 6. Therefore, the coal conveyor belt deviation correction device of the embodiment of the present invention has the advantage of improving monitoring accuracy.

[0060] like Figure 1 , Figure 2 and Figure 6 As shown, the coal conveyor belt deviation correction device of the embodiment of the present invention also includes a laser sensing component 8, which includes a bidirectional laser instrument 81, a cleaning ring 82 and a flipping mechanism 83. The bidirectional laser instrument 81 is arranged on the flipping mechanism 83, and one end of the bidirectional laser instrument 81 can monitor the position of the belt. The flipping mechanism 83 is rotatably arranged on the placement frame 1 so as to flip the bidirectional laser instrument 81. The cleaning ring 82 is fitted with the end of the bidirectional laser instrument 81, and one end of the bidirectional laser instrument 81 can monitor the position of the belt.

[0061] The coal conveyor belt deviation correction device of the embodiment of the present invention is provided with a laser sensing component 8, and the laser sensing component 8 is divided into a bidirectional laser instrument 81, a dust cleaning ring 82 and a flipping mechanism 83. The flipping mechanism 83 is rotatably provided on the placement frame 1 so as to flip the bidirectional laser instrument 81. The probe on the bidirectional laser instrument 81 can be cleaned during the flipping process to ensure that the unused end of the bidirectional laser instrument 81 will not be contaminated with coal dust, thereby ensuring the accuracy of the bidirectional laser instrument 81. Therefore, the coal conveyor belt deviation correction device of the embodiment of the present invention has the advantage of improving the accuracy of laser sensing.

[0062] like Figure 1 , Figure 2 and Figure 6As shown, the flipping mechanism 83 includes a dual-axis stepper motor 831, a connecting tube 832 and a laser clamping rod 833. The two output ends of the dual-axis stepper motor 831 extend along the width direction of the frame. The two output ends of the dual-axis stepper motor 831 are fixedly connected to the connecting tube 832. The end of the connecting tube 832 is connected to the laser clamping rod 833. The bidirectional laser instrument 81 is fixedly sleeved on the laser clamping rod 833 to drive the bidirectional laser instrument 81 to flip by rotating the connecting tube 832. The cleaning ring 82 is contactably arranged at the lower end of the bidirectional laser instrument 81 to clean the end of the bidirectional laser instrument 81. The two ends of one side of the surface of the bidirectional laser instrument 81 are fixedly connected to second magnetic sheets, one end of which contacts a second induction plate, one end of the second induction plate is fixedly connected to a power-on plate, and the bottom of one end of the power-on plate is fixedly connected to the cleaning ring 82.

[0063] The coal conveyor belt deviation correction device of the embodiment of the present invention divides the turnover mechanism 83 into a dual-axis stepper motor 831, a connecting pipe 832 and a laser clamping rod 833, and the bidirectional laser instrument 81 is fixedly sleeved on the laser clamping rod 833 to drive the bidirectional laser instrument 81 to flip by rotating the connecting pipe 832. The dust cleaning ring 82 is contactably arranged at the lower end of the bidirectional laser instrument 81 to clean the end of the bidirectional laser instrument 81, which can prevent dust from accumulating on the bidirectional laser instrument 81 and causing poor laser detection effect. Therefore, the coal conveyor belt deviation correction device of the embodiment of the present invention further improves the accuracy of laser sensing.

[0064] Specifically, the connection pipe 832 extends along the width direction of the frame.

[0065] One end of one of the second magnetic sheets contacts with a second sensing plate, and one end of the second sensing plate is fixedly connected with a power-on plate, which can fix the position of the second sensing plate. When the second magnetic sheet contacts the second sensing plate, the power-on plate can power one end of the bidirectional laser 81 through the second sensing plate and the second magnetic sheet, and one end of the bidirectional laser 81 can monitor the position of the belt.

[0066] like Figure 1 , Figure 3 and Figure 5 As shown, the deflection correction roller 33 assembly 3 includes a rotating mechanism 31, a support frame 32 and a deflection correction roller 33. The upper end surface of the deflection correction roller 33 is arranged flush with the upper end surface of the conveying roller. The rotating mechanism 31 is rotatably arranged on the base 2. The rotating shaft 311 of the rotating mechanism 31 extends along the up and down directions of the frame. The bottom of the support frame 32 is connected to the rotating mechanism 31, and the top of the support frame 32 is connected to the deflection correction roller 33.

[0067] The coal conveyor belt deviation correction device of the embodiment of the present invention is characterized in that the deviation correction roller 33 assembly 3 is divided into a rotating mechanism 31, a support frame 32 and a deviation correction roller 33, the rotating mechanism 31 is rotatably arranged on the base 2, and the rotating shaft 311 of the rotating mechanism 31 extends in the up-down direction of the frame, thereby adjusting the deviation of both sides of the conveyor belt in the width direction. Therefore, the coal conveyor belt deviation correction device has the advantage of simple structure.

[0068] like Figure 1 , Figure 3 , Figure 5 and Figure 7 As shown in the figure, the rotating mechanism 31 is a hydraulic driving member, which includes a hydraulic cylinder 301, a moving plate 302 and a rotating member 303. The rotating member 303 is connected to the support frame 32, and the rotating member 303 is rotatably arranged on the support frame 32. One end of the moving plate 302 is respectively hinged to the hydraulic cylinder 301, and the other end of the moving plate 302 is respectively connected to the rotating member 303 so as to drive the rotating member 303 to rotate when the hydraulic cylinder 301 rotates; the rotating member 303 includes a rotating shaft 311, a support seat 312, a worm wheel 313, a worm 314, and a first Two motors 315, a support rod 316 and a connecting rod assembly 317, the movable plate 302 is connected to the rotating shaft 311, the rotating shaft 311 is passed through the support seat 312, the output end of the second motor 315 is connected to the worm 314, the connecting rod assembly 317 and one end of the support rod 316 are connected to the support seat 312, the other end of the support rod 316 is rotatably matched with the rotating shaft of the worm wheel 313, and the other end of the connecting rod assembly 317 is fixedly connected to the rotating shaft of the worm wheel 313 so that the inclination angle of the support seat 312 in the length direction of the frame can be adjusted by rotating the worm wheel 313.

[0069] The coal conveyor belt deviation correction device of the embodiment of the present invention divides the hydraulic drive part into a hydraulic cylinder 301, a movable plate 302 and a rotating part 303, and drives the movable plate 302 to rotate through the hydraulic cylinder 301, thereby driving the rotating part 303 to rotate, thereby solving the problem of belt deviation during the conveying process. Therefore, the coal conveyor belt deviation correction device can correct the problems of belt wear and material leakage caused by belt deflection.

[0070] The coal conveyor belt deviation correction device of the embodiment of the present invention comprises a rotating member 303 including a rotating shaft 311, a support seat 312, a worm wheel 313, a worm 314, a second motor 315, a support rod 316 and a connecting rod assembly 317, wherein the movable plate 302 is connected to the rotating shaft 311, the rotating shaft 311 is passed through the support seat 312, the output end of the second motor 315 is connected to the worm 314, the connecting rod assembly 317 and one end of the support rod 316 are connected to the support seat 312, the other end of the support rod 316 is rotated to cooperate with the rotating shaft of the worm wheel 313, and the other end of the connecting rod assembly 317 is fixedly connected to the rotating shaft of the worm wheel 313 so as to adjust the inclination angle of the support seat 312 in the length direction of the frame through the rotation of the worm wheel 313. Then, the height of the deviation correction roller 33 is changed to avoid the drift problem caused by the partial belt trestle going uphill and the inconsistent angles of each section.

[0071] Specifically, Figure 1 , Figure 3 and Figure 7As shown, the middle part of the top of the base 2 is rotatably connected with a rotating rod 431 through a bearing, and the base 2 can limit the position of the rotating rod 431, and the rotating rod 431 can only be rotated on the middle part of the top of the base 2. The lower part of the surface of the rotating rod 431 is fixedly sleeved with a rotating ring, and the rotating rod 431 can fix the position of the rotating ring. The rotation of the rotating ring can drive the rotating rod 431 to rotate. One side of the rotating ring is rotatably connected with a moving plate 302, and the movement of the moving plate 302 can drive the rotating ring to rotate. The connecting ring can connect the rotating rod 431 with the moving plate 302, and one side of the moving plate 302 is fixedly connected with a hydraulic Cylinder 301, hydraulic cylinder 301 can fix the position of movable plate 302, the output end of hydraulic cylinder 301 can drive movable plate 302 to move, when the belt blocks the upward end of bidirectional laser instrument 81 and bidirectional laser instrument 81 rotates, bidirectional laser instrument 81 transmits a signal to the control box, the control box controls the oil pump to supply oil to hydraulic cylinder 301, hydraulic cylinder 301 works, pushes movable plate 302 to move, movable plate 302 pushes and pulls the rotating ring, the rotating ring rotates to drive the rotating rod 431 to rotate, the rotating rod 431 drives the deviation correction roller 33 to rotate, the deviation correction roller 33 rotates to correct the belt. After the deviation correction roller 33 rotates, it pushes the belt to a suitable position to make the equipment operate normally, and both sides of the bottom of the deviation correction roller 33 are fixedly connected with movable rods. The bottom of one end of the hydraulic cylinder 301 is fixedly connected with an extension plate by bolts, and the extension plate can fix the position of the hydraulic cylinder 301. When the hydraulic cylinder 301 is started, the position of the deviation correction roller 33 can be changed. One end of the extension plate is fixedly connected to one side of the base 2, and the base 2 can fix the position of the extension plate. It is set in the middle of the bottom of the base 2 of the rotating member 303. The base 2 can fix the position of the rotating member 303. The rotation of the rotating member 303 can drive the base 2 to rotate. The bottom of the rotating member 303 is sleeved with a fixed member, and the rotating member 303 can rotate on the top of the fixed member. The bottom of the fixed member is fixedly connected with a circular plate, and the circular plate can fix the position of the fixed member. The circular plate can support some components of the device. Support rings are fixedly connected to both sides of the circular plate surface, and the circular plate can fix the position of the support ring to ensure that the position of the support ring will not change. A connecting rod is sleeved inside the support ring, and the support ring can limit the position of the connecting rod, limiting the connection rod to rotate only inside the support ring. The support ring can support the connecting rod, and a worm gear is fixedly sleeved in the middle of the connecting rod. The rotation of the worm gear can drive the connecting rod to rotate inside the support ring. A worm 314 is meshed between the teeth of the worm wheel, and the rotation of the worm 314 can engage the worm wheel to rotate. One end of the worm 314 is fixedly connected to a second motor 315, and the second motor 315 can fix the position of the worm 314. When the second motor 315 is started, the output end of the second motor 315 can drive the worm 314 to rotate.

[0072] Specifically, one end of the worm 314 is rotatably connected to the middle part of the inner wall of the fixing part through a bearing, and a fixing part can be provided to limit the worm 314, limiting the worm 314 to rotate only in the middle part of the inner wall of the fixing part. The bottom of the second motor 315 is fixedly connected to a support plate by bolts, and the support plate can fix the position of the second motor 315 to ensure that the position of the second motor 315 does not change. One side of the support plate is fixedly connected to the bottom of one side of the surface of the circular plate, and the circular plate can fix the position of the support plate.

[0073] The following is a further introduction in conjunction with the specific working method, as described below for details: When the specific coal conveyor belt deviation correction device of a thermal power plant is working / in use: if the position of the device needs to be changed, start the second motor 315, the second motor 315 drives the worm 314 to rotate, the worm 314 engages the worm wheel to rotate, the rotation of the worm wheel drives the connecting rod assembly 317 to rotate, the connecting rod assembly 317 drives the base 2 and the rotating part 303 to rotate on the fixed part, thereby changing the angle of the deviation correction roller 33, the monitor monitors the surface of the roller, when the monitor detects the coal ash on the surface of the roller, the first motor 41 is started through the control box, the output end of the first motor 41 drives the bevel gear 421 to rotate, the bevel gear The wheel 421 meshes with the driven gear 422 to drive the driving rod body 423 to rotate, and the driving rod body 423 rotates to drive the fixed gears 424 on both sides to rotate, and the fixed gears 424 mesh with the rotating gears to rotate, and the rotating gears drive the electric push rod and the scraper 433 to move. When the electric push rod reaches the maximum position, the electric push rod starts to push the scraper 433 to move to the position where dust needs to be cleaned to clean the surface of the roller. After the cleaning is completed, the electric push rod resets and pulls the scraper 433. The output end of the first motor 41 rotates in the opposite direction, driving the electric push rod and the scraper 433 to reset to the storage groove 11. When the first magnetic piece at one end of the scraper 433 contacts the first induction plate, the rotating mechanism 31 is energized. After the rotating mechanism 31 is powered on, the upper part of the bidirectional laser instrument 81 monitors the position of the belt. When the bidirectional laser instrument 81 on one side is blocked by the belt, the dual-axis stepper motor 831 is started through the control box. The two output ends of the dual-axis stepper motor 831 drive the laser clamping rod 833 and the bidirectional laser instrument 81 to rotate. At the same time, the control box controls the oil pump to supply oil to the hydraulic cylinder 301. The hydraulic cylinder 301 works to push the moving plate 302 to move. The moving plate 302 pushes the rotating ring to rotate. The rotating ring drives the rotating rod 431 and the deviation correction roller 33 to rotate. The rotation of the deviation correction roller 33 can correct the belt. The bidirectional laser instrument 81 drives the second magnetic sheet to rotate when it rotates. When the second magnetic sheet is no longer After contacting the second induction plate, the bidirectional laser 81 loses power supply and stops working. When the output end of the dual-axis stepper motor 831 drives the bidirectional laser 81 to rotate to 180°, the dual-axis stepper motor 831 stops moving, and the lower part of the bidirectional laser 81 rotates to the upper part, driving the second magnetic sheet at the lower part to rotate to the upper part and contact the second induction plate. The other side of the bidirectional laser 81 is powered on to continue monitoring the belt. When the bidirectional laser 81 rotates, the cleaning ring 82 cleans the side of the bidirectional laser 81 that is no longer in use. When the belt returns to the right track and no longer blocks the bidirectional laser 81, the hydraulic cylinder 301 pulls the rotating ring, the rotating rod 431 and the deviation correction roller 33 to reset. The above electronic equipment is powered by an internal battery (not shown) or an external wire (not shown).

[0074] The coal conveyor of a thermal power plant in an embodiment of the present invention comprises a frame, conveying rollers, a belt and a coal conveying belt correction device for a thermal power plant according to any of the above items, wherein the conveying rollers are rotatably arranged on the frame around the width direction of the frame, and the belts are sleeved on the conveying rollers.

[0075] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0079] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0080] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A coal conveyor belt deviation correction device, characterized in that: include: A base and a placement rack, both of which can be arranged on a rack; A deviation correction roller assembly, which is rotatably arranged on the base around the height direction of the frame to correct the belt, and the deviation correction roller assembly can be arranged at a distance from the conveying roller in the conveying direction; A cleaning mechanism and a control box, wherein the cleaning mechanism is arranged on the top of the placement rack to remove the coal ash on the surface of the conveying roller, and the control box is arranged in the middle position of the top of the placement rack, and the control box responds to the electrical signals of the cleaning mechanism and the deviation correction roller assembly.

2. The coal conveyor belt deviation correction device according to claim 1, characterized in that: The cleaning mechanism includes a first motor, a bevel gear assembly and a scraper assembly. The first motor is connected to the placement rack. The output end of the first motor is fixedly connected to the bevel gear assembly. The placement rack is provided with the scraper assembly on both sides of the width direction of the frame. The scraper assembly is meshed with the bevel gear assembly to drive the scraper assembly to move relative to the conveying roller. The scraper assembly is fitted with the conveying roller to remove the coal ash on the surface of the conveying roller.

3. The coal conveyor belt deviation correction device according to claim 2, characterized in that: The bevel gear assembly includes a bevel gear, a driven gear, a driving rod body and at least two fixed gears. The bevel gear is connected to the output end of the first motor. The driving rod body is arranged on the placement rack, and the driving rod body is arranged along the width direction of the frame. The driven gear and at least two fixed gears are both sleeved on the driving rod body. The bevel gear is meshed with the driven gear, and the fixed gear is meshed with the scraper assembly.

4. The coal conveyor belt deviation correction device according to claim 3 is characterized in that: The scraper assembly includes a rotating rod, a push rod and a scraper. The rotating rod is rotatably installed on the frame and extends along the height direction of the frame. The end of the rotating rod is meshed with the fixed gear through a conical matching tooth. The rotating rod is vertically connected to the push rod, and the scraper is connected to one end of the push rod away from the placement rod.

5. The coal conveyor belt deviation correction device according to claim 4, characterized in that: The placement rack is provided with a receiving groove, a first magnetic sheet is fixedly connected to the interior of the top of the scraper, a first induction plate adapted to the first magnetic sheet is provided on one side of the placement rack to respond to the push rod and the scraper being received in the receiving groove when no cleaning operation is performed, and the first magnetic sheet and the first induction plate are connected to the control box electrical signal accordingly; And / or, the push rod is an electric telescopic rod; And / or, the surface of the scraper is covered with a layer of soft brush.

6. The coal conveyor belt deviation correction device according to claim 1, characterized in that: It also includes an arc-shaped plate and a monitor, wherein the two ends of the arc-shaped plate are respectively connected to the two sides of the width direction of the placement rack, and the middle of the top of the arc-shaped plate is fixedly connected with the monitor, and the monitor is connected to the control box signal accordingly; And / or, it also includes a laser sensing component, which includes a bidirectional laser instrument, a cleaning ring and a flipping mechanism, the bidirectional laser instrument is arranged on the flipping mechanism, the flipping mechanism is rotatably arranged on the placement rack to flip the bidirectional laser instrument, and the cleaning ring is in contact with the end of the bidirectional laser instrument.

7. The coal conveyor belt deviation correction device according to claim 6, characterized in that: The flipping mechanism includes a dual-axis stepper motor, a connecting tube and a laser clamping rod. The two output ends of the dual-axis stepper motor extend along the width direction of the frame. The two output ends of the dual-axis stepper motor are fixedly connected to the connecting tube. The end of the connecting tube is connected to the laser clamping rod. The bidirectional laser instrument is fixedly sleeved on the laser clamping rod to drive the bidirectional laser instrument to flip by rotating the connecting tube. The cleaning ring can be contactably arranged at the lower end of the bidirectional laser instrument to clean the end of the bidirectional laser instrument. Both ends of one side of the surface of the bidirectional laser instrument are fixedly connected with second magnetic sheets, one end of which contacts with a second induction plate, one end of the second induction plate is fixedly connected with a power-on plate, and the bottom of one end of the power-on plate is fixedly connected with the cleaning ring.

8. The coal conveyor belt deviation correction device according to claim 1, characterized in that: The correcting roller assembly includes a rotating mechanism, a support frame and a correcting roller. The upper end surface of the correcting roller is arranged flush with the upper end surface of the conveying roller. The rotating mechanism is rotatably arranged on the base. The rotating axis of the rotating mechanism extends along the up and down directions of the frame. The bottom of the support frame is connected to the rotating mechanism, and the correcting roller is rotatably engaged with the top of the support frame.

9. The coal conveyor belt deviation correction device according to claim 8, characterized in that: The rotating mechanism is a hydraulic driving member, which includes a hydraulic cylinder, a movable plate and a rotating member, wherein the rotating member is connected to the support frame, the rotating member is rotatably arranged on the support frame, and one end of the movable plate is respectively hinged to the hydraulic cylinder, and the other end of the movable plate is respectively connected to the rotating member so as to drive the rotating member to rotate when the hydraulic cylinder rotates; The rotating part includes a rotating shaft, a support seat, a worm wheel, a worm, a second motor, a support rod and a connecting rod assembly. The movable plate is connected to the rotating shaft, and the rotating shaft is passed through the support seat. The output end of the second motor is connected to the worm, and one end of the connecting rod assembly and the support rod are connected to the support seat. The other end of the support rod is rotatably matched with the rotating shaft of the worm wheel, and the other end of the connecting rod assembly is fixedly connected to the rotating shaft of the worm wheel so that the inclination angle of the support seat in the length direction of the frame can be adjusted by rotating the worm wheel.

10. A coal conveyor for a thermal power plant, characterized in that: It comprises a frame, conveying rollers, a belt and a coal conveying belt deviation correction device for a thermal power plant according to any one of claims 1 to 9, wherein the conveying rollers are rotatably arranged on the frame around the width direction of the frame, and the belts are sleeved on the conveying rollers.

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