Multi-stage automatic deviation correcting device for coal conveying belt of thermal power plant

Abstract

The invention provides a multi-stage automatic deviation rectifying device for a coal conveying belt of a thermal power plant, and relates to the technical field of coal conveying equipment of the thermal power plant, the multi-stage automatic deviation rectifying device comprises a deviation rectifying sensing assembly, a multi-stage deviation rectifying mechanism and a control system, and the control system is electrically connected with the deviation rectifying sensing assembly and the multi-stage deviation rectifying mechanism; the deviation rectifying sensing assembly is arranged on the multi-stage deviation rectifying mechanism and used for monitoring the running state of the coal conveying belt in real time, and the multi-stage deviation rectifying mechanism is used for adjusting tension on the two sides of the coal conveying belt and rectifying deviation of the coal conveying belt. When the coal conveying belt deviates in the transmission process, the deviation rectifying sensing assembly can be triggered, the deviation rectifying sensing assembly can immediately send a deviation rectifying signal to the control system, the multi-stage deviation rectifying mechanism can rectify deviation of the deviated coal conveying belt under the action of the control system, and therefore automatic deviation rectifying of the coal conveying belt is achieved; and the phenomena that time and labor are wasted during manual deviation rectification and deviation rectification is not timely are avoided.

Description

Technical Field

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

[0002] In the process of coal transportation in thermal power plants, the coal conveyor belt is an important conveying equipment. Its normal operation is crucial to ensure the stable production of the power plant. However, during operation, due to the elasticity of the belt itself, uneven material distribution, insufficient belt tension and other reasons, the belt often deviates, which not only affects the coal transportation efficiency, but also may cause damage to the equipment and even cause safety accidents.

[0003] Belt deviation correction is usually done manually, which is time-consuming and labor-intensive, and is prone to untimely deviation correction, ultimately leading to economic losses. Summary of the invention

[0004] The present invention provides a multi-stage automatic deviation-correcting device for a coal conveying belt of a thermal power plant, which is used to solve at least one of the technical problems mentioned above.

[0005] In order to solve the above technical problems, the present invention discloses a multi-stage automatic deviation correction device for a coal conveyor belt in a thermal power plant, comprising a deviation correction sensor component, a multi-stage deviation correction mechanism and a control system, wherein the control system is electrically connected to the deviation correction sensor component and the multi-stage deviation correction mechanism;

[0006] The deviation correction sensor component is arranged on a multi-stage deviation correction mechanism. The deviation correction sensor component is used to monitor the operating status of the coal conveyor belt in real time. When the coal conveyor belt deviates, the deviation correction sensor component will immediately send a deviation correction signal to the control system. The multi-stage deviation correction mechanism is used to adjust the tension on both sides of the coal conveyor belt to correct the deviation of the coal conveyor belt.

[0007] Preferably, the multi-stage correction mechanism includes a base, which is rotatably connected to an electric spindle, and a roller mounting bracket is fixedly connected to the electric spindle, and two symmetrically arranged mounting supports and two symmetrically arranged mounting brackets are installed on the roller mounting bracket, a horizontal roller is rotatably connected between the two mounting brackets, and a left oblique roller and a right oblique roller are rotatably connected between the two groups of mounting supports and the mounting brackets, respectively, the correction sensor assembly is rotatably connected to the side of the mounting support, and the two correction sensor assemblies are coaxial with the left oblique roller and the right oblique roller, respectively, and are connected through bearings.

[0008] Preferably, the deviation correction sensor assembly includes a tapered roller, which is rotatably connected to the side of the mounting support, and the two tapered rollers are coaxial with the left oblique roller and the right oblique roller, respectively, and are mounted on the corresponding rotating shafts of the left oblique roller and the right oblique roller through bearings;

[0009] The conical roller is provided with a pressure sensor, and the pressure sensor is used to detect the pressure of the coal conveying belt on the surface of the conical roller.

[0010] Preferably, it also includes a vertical roller mounting seat, which is mounted on the roller body mounting bracket, and a roller shaft is rotatably connected to the vertical roller mounting seat, and an inclination sensor is provided on the roller shaft, and a roller is connected to the roller shaft through a bearing, and a roller speed sensor is provided on the roller.

[0011] Preferably, it also includes a deviation evaluation unit, which is electrically connected to the control system and is used to evaluate the deviation of the coal conveyor belt based on the formula:

[0012]

[0013] χ is the deviation coefficient of the coal conveyor belt, λ 1 is the influence coefficient of the tapered roller state on the deviation coefficient of the coal conveyor belt, e is a natural number, and its value is 2.71, F 1 is the detection value of the pressure sensor, F 0 is the critical splitting pressure value of the coal conveyor belt deviation level, λ 2 is the influence coefficient of roller state on the deviation degree of coal conveyor belt, π is the value of pi which is 3.14, L is the length of roller shaft, a is the detection value of inclination sensor, τ is the compensation coefficient of coal conveyor belt deviation, S 0 is the critical splitting offset reference value of the coal conveyor belt deviation level, ω 1 is the detection value of the drum speed sensor, ω 0 It is the critical split speed reference value of the coal conveyor belt deviation level;

[0014] when At this time, the deviation of the coal conveyor belt is slight, and the control system controls the multi-level deviation correction mechanism to correct the deviation of the coal conveyor belt;

[0015] When χ≥χ 0 At this time, the coal conveyor belt is severely deviated, and the control system controls the coal conveyor belt to perform emergency shutdown and maintenance.

[0016] Preferably, it also includes a correction mechanism maintenance and heat dissipation component, which includes a feed drive box, which is installed on the base of the multi-stage correction mechanism and is located at a preset distance behind the horizontal roller. The feed drive box is provided with a roller maintenance body, a belt cleaning mechanism and a heat dissipation and air supply mechanism. The feed drive box is used to provide maintenance fluid for the roller maintenance body, cleaning power for the belt cleaning mechanism, and heat dissipation airflow for the heat dissipation and air supply mechanism.

[0017] Preferably, a strip-shaped installation box is provided in the feeding drive box, and two symmetrically arranged T-shaped piston rods are slidably connected to the strip-shaped installation box, and a compression elastic member is sleeved on the T-shaped piston rod, and the two T-shaped piston rods are respectively fixedly connected with support rods of a belt cleaning mechanism, and two symmetrically arranged driving turntables are rotatably connected in the feeding drive box, and the driving turntables are radially slidably connected with a toggle block, and the toggle block is connected to the driving turntable through a reset elastic member, and a toggle groove is provided on the T-shaped piston rod, and the toggle groove is used to cooperate with the toggle block;

[0018] The belt cleaning mechanism comprises a folding plate, which is fixedly connected to the support rod and is connected to a cleaning brush plate via a plurality of compression elastic members.

[0019] Preferably, two symmetrically arranged maintenance liquid extrusion boxes are provided in the feeding drive box, and an extrusion piston is slidably connected in the maintenance liquid extrusion box. A compression elastic member three is sleeved on the extrusion piston, and a plurality of meshing teeth one are provided on the extrusion piston. A plurality of meshing teeth two are provided on the driving turntable, and the meshing teeth two are used to mesh with the meshing teeth one. The maintenance liquid extrusion box is connected to the roller maintenance body through a hose.

[0020] Preferably, the roller maintenance body includes a sleeve, which is fixedly connected to the feeding drive box, a height adjustment cylinder is fixedly connected inside the sleeve, a sliding cylinder is fixedly connected to the working end of the height adjustment cylinder, a micro motor is installed on the sliding cylinder, a micro gear 1 is fixedly connected to the output end of the micro motor, a micro shaft is rotatably connected inside the sliding cylinder, two symmetrically arranged micro gears 2 and a rocker are fixedly connected to the micro shaft, the micro gear 1 and the micro gear 2 are meshed with each other, a mounting block is fixedly connected to the rocker, a short bent rod is connected to the mounting block through a bearing, an electric oblique maintenance roller is rotatably connected to the short bent rod, the electric oblique maintenance roller is rotatably connected to the maintenance bracket at one end away from the short bent rod, the maintenance bracket is slidably connected to the sleeve, and an electric horizontal maintenance roller is rotatably connected between the two maintenance brackets.

[0021] Preferably, the heat dissipation and air supply mechanism includes two symmetrically arranged shaft mounting plates, the shaft mounting plates are fixedly connected in the strip mounting box, a linkage shaft is rotatably connected on the shaft mounting plates, one end of the linkage shaft is fixedly connected to a linkage roller, an arc groove is provided on the linkage roller, an execution push rod is slidably connected in the arc groove, the execution push rod is fixedly connected to the T-shaped piston rod, the other end of the linkage shaft is fixedly connected to a bevel gear 1, two symmetrically arranged heat dissipation shafts are rotatably connected to the strip mounting box, a bevel gear 2 and a plurality of heat dissipation slurries are fixedly connected to the heat dissipation shaft, the bevel gear 2 and the bevel gear 1 are meshed with each other, an air inlet filter box is installed on the feeding drive box, the heat dissipation slurry is located in the heat dissipation cavity, the outlet end of the heat dissipation cavity is connected with an air outlet plate through a hose, the air outlet plate is arranged on the feeding drive box, and a refrigeration plate is provided on the inner wall of the heat dissipation cavity.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] When the coal conveyor belt of the present invention deviates during the transmission process, the correction sensor component will be triggered, and the correction sensor component will immediately send a correction signal to the control system. The multi-level correction mechanism will correct the deviated coal conveyor belt under the action of the control system, thereby realizing automatic correction of the coal conveyor belt and avoiding the time-consuming and labor-intensive manual correction and the occurrence of untimely correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0027] Figure 3 It is a schematic diagram of the roller structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the working state of the roller of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the belt cleaning mechanism of the present invention;

[0030] Figure 6 This is a schematic diagram of the internal structure of the feeding drive box of the present invention;

[0031] Figure 7 This is a schematic diagram of the top installation of the feed drive box of the present invention;

[0032] Figure 8 It is a schematic diagram of the main structure of the roller maintenance of the present invention.

[0033] In the figure: 1. Correction sensor assembly; 100. Coal conveyor belt; 101. Conical roller; 102. Vertical roller mounting seat; 103. Roller shaft; 104. Inclination sensor; 105. Roller; 2. Multi-stage correction mechanism; 200. Base; 201. Electric spindle; 202. Roller mounting bracket; 203. Mounting support; 204. Mounting bracket; 205. Horizontal roller; 206. Left inclined roller; 207. Right inclined roller; 3. Correction mechanism maintenance and heat dissipation group Components; 300, feeding drive box; 3000, strip installation box; 3001, shaft installation plate; 3002, linkage shaft; 3003, linkage roller; 3004, arc groove; 3005, execution push rod; 3006, T-type piston rod; 3007, compression elastic component 1; 3008, driving turntable; 3009, toggle block; 301, roller maintenance body; 3010, sleeve; 3011, height adjustment cylinder; 3012, sliding cylinder; 3013, micro motor; 3014, micro gear 1; 3015, micro shaft; 3016, micro gear 2; 3017, rocker; 3018, mounting block; 3019, short bending rod; 302, belt cleaning mechanism; 3020, support rod; 3021, folding plate; 3022, compression elastic member 2; 3023, cleaning brush plate; 303, heat dissipation and air supply mechanism; 3030, pull slot; 3031, bevel gear 1; 3032, heat dissipation shaft ; 3033, heat dissipation slurry; 3034, bevel gear two; 3035, air inlet filter box; 3036, heat dissipation chamber; 3037, air outlet plate; 3038, cooling plate; 304, maintenance liquid extrusion box; 3040, extrusion piston; 3041, compression elastic member three; 3042, meshing tooth one; 3043, meshing tooth two; 305, electric inclined maintenance roller; 3050, maintenance bracket; 3051, electric horizontal maintenance roller; 3052, reset elastic member. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention provides the following embodiments

[0037] Example 1

[0038] The embodiment of the present invention provides a multi-stage automatic deviation correction device for a coal conveyor belt in a thermal power plant, such as Figure 1-8 As shown, it includes a correction sensor component 1, a multi-stage correction mechanism 2 and a control system, and the control system is electrically connected to the correction sensor component 1 and the multi-stage correction mechanism 2;

[0039] The deviation correction sensor component 1 is arranged on the multi-stage deviation correction mechanism 2. The deviation correction sensor component 1 is used to monitor the operating status of the coal conveyor belt 100 in real time. When the coal conveyor belt 100 deviates, the deviation correction sensor component 1 will immediately send a deviation correction signal to the control system. The multi-stage deviation correction mechanism 2 is used to adjust the tension on both sides of the coal conveyor belt 100 to correct the deviation of the coal conveyor belt 100.

[0040] The working principle and beneficial effects of the above technical solution are as follows: when the coal conveyor belt 100 deviates during the transmission process, the correction sensor component 1 will be triggered, and the correction sensor component 1 will immediately send a correction signal to the control system. The multi-level correction mechanism 2 will correct the deviated coal conveyor belt 100 under the action of the control system, thereby realizing the automatic correction of the coal conveyor belt 100, avoiding the time-consuming and labor-intensive manual correction and the occurrence of the phenomenon of untimely correction.

[0041] Example 2

[0042] On the basis of Example 1, the multi-stage correction mechanism 2 includes a base 200, on which an electric spindle 201 is rotatably connected, and a roller mounting bracket 202 is fixedly connected to the electric spindle 201, and two symmetrically arranged mounting supports 203 and two symmetrically arranged mounting supports 204 are installed on the roller mounting bracket 202, and a horizontal roller 205 is rotatably connected between the two mounting supports 204, and a left oblique roller 206 and a right oblique roller 207 are rotatably connected between the two groups of mounting supports 203 and the mounting brackets 204, respectively, and the correction sensor assembly 1 is rotatably connected to the side of the mounting support 203, and the two correction sensor assemblies 1 are coaxial with the left oblique roller 206 and the right oblique roller 207, respectively, and are connected through bearings.

[0043] The working principle and beneficial effects of the above technical solution are as follows: during correction, if the coal conveyor belt 100 deviates to the left, the correction sensor component 1 on the left side senses that the coal conveyor belt 100 deviates to the left side, and the control system controls the electric main shaft 201 to rotate counterclockwise, and applies extrusion force to the coal conveyor belt 100 through the left inclined roller 206, so that the coal conveyor belt 100 is corrected.

[0044] Example 3

[0045] On the basis of Example 2, the deviation correction sensor assembly 1 includes a tapered roller 101, which is rotatably connected to the side of the mounting support 203, and the two tapered rollers 101 are coaxial with the left oblique roller 206 and the right oblique roller 207, respectively, and are installed on the corresponding rotating shafts of the left oblique roller 206 and the right oblique roller 207 through bearings;

[0046] The tapered roller 101 is provided with a pressure sensor, which is used to detect the pressure of the coal conveyor belt 100 on the surface of the tapered roller 101;

[0047] It also includes a vertical roller mounting seat 102, which is mounted on a roller body mounting bracket 202. A roller shaft 103 is rotatably connected to the vertical roller mounting seat 102, and an inclination sensor 104 is provided on the roller shaft 103. A roller 105 is connected to the roller shaft 103 through a bearing, and a roller 105 is provided with a drum speed sensor.

[0048] The working principle and beneficial effects of the above technical solution are as follows: when the coal conveyor belt 100 deviates, the conical roller 101 will be squeezed, and the pressure sensor will detect the pressure of the coal conveyor belt 100 on the surface of the conical roller 101. At the same time, the roller 105 will also be squeezed, thereby causing the roller 105 to rotate. At the same time, the roller shaft 103 rotates around the vertical roller mounting seat 102. The movement state of the conical roller 101 and the roller 105 can reflect the degree of deviation of the coal conveyor belt 100.

[0049] Example 4

[0050] On the basis of Example 3, a deviation evaluation unit is further included. The deviation evaluation unit is electrically connected to the control system. The deviation evaluation unit is used to evaluate the deviation of the coal conveyor belt 100 based on formula (1):

[0051]

[0052] χ is the deviation coefficient of the coal conveyor belt 100, λ 1 is the influence coefficient of the state of the tapered roller 101 on the deviation coefficient of the coal conveyor belt 100, e is a natural number, and its value is 2.71, F 1 is the detection value of the pressure sensor, F 0 is the critical splitting pressure value of the coal conveyor belt 100 deviation level, λ 2 is the influence coefficient of the roller 105 state on the deviation degree coefficient of the coal conveyor belt 100, π is the pi value of 3.14, L is the length of the roller 103, a is the detection value of the inclination sensor 104, τ is the offset compensation coefficient of the coal conveyor belt 100, S 0 is the critical splitting offset reference value of the coal conveyor belt 100 deviation level, ω 1 is the detection value of the drum speed sensor, ω 0 It is the critical splitting speed reference value of the coal conveyor belt with a deviation degree of 100;

[0053] when When the deviation of the coal conveying belt 100 is slight, the control system controls the multi-stage deviation correction mechanism 2 to correct the deviation of the coal conveying belt 100;

[0054] When χ≥χ 0 At this time, the deviation degree of the coal conveyor belt 100 is severe deviation, and at this time the control system controls the coal conveyor belt 100 to perform emergency shutdown and maintenance.

[0055] Working principle and beneficial effects of the above technical solution: Formula (1) can accurately calculate the deviation coefficient of the coal conveyor belt 100 in combination with the motion state of the tapered roller 101 and the roller 105. The larger the detection value of the pressure sensor, the more serious the deviation of the coal conveyor belt 100; the larger the detection value of the inclination sensor 104, the more serious the deviation of the coal conveyor belt 100; the larger the detection value of the drum speed sensor, the more serious the deviation of the coal conveyor belt 100, thereby visualizing the deviation degree of the coal conveyor belt 100. When χ≥χ, the deviation of the coal conveyor belt 100 is slight. At this time, the control system controls the multi-stage deviation correction mechanism 2 to correct the deviation of the coal conveyor belt 100. 0 At this time, the deviation degree of the coal conveyor belt 100 is severe deviation, and at this time the control system controls the coal conveyor belt 100 to perform emergency shutdown and maintenance.

[0056] Example 5

[0057] On the basis of Example 1, it also includes a correction mechanism maintenance heat dissipation component 3, which includes a feed drive box 300, which is installed on the base 200 of the multi-stage correction mechanism 2 and is located at a preset distance behind the horizontal roller 205. The feed drive box 300 is provided with a roller maintenance body 301, a belt cleaning mechanism 302 and a heat dissipation and air supply mechanism 303. The feed drive box 300 is used to provide maintenance liquid for the roller maintenance body 301, provide cleaning power for the belt cleaning mechanism 302, and provide heat dissipation airflow for the heat dissipation and air supply mechanism 303;

[0058] The feeding drive box 300 is provided with a strip installation box 3000, and two symmetrically arranged T-shaped piston rods 3006 are slidably connected to the strip installation box 3000, and a compression elastic member 3007 is sleeved on the T-shaped piston rod 3006, and the two T-shaped piston rods 3006 are respectively fixedly connected with support rods 3020 of the belt cleaning mechanism 302, and two symmetrically arranged driving turntables 3008 are rotatably connected in the feeding drive box 300, and the driving turntable 3008 is radially slidably connected with a toggle block 3009, and the toggle block 3009 is connected to the driving turntable 3008 through a reset elastic member 3052, and a toggle groove 3030 is provided on the T-shaped piston rod 3006, and the toggle groove 3030 is used to cooperate with the toggle block 3009;

[0059] The belt cleaning mechanism 302 includes a folding plate 3021 , which is fixedly connected to the support rod 3020 , and the folding plate 3021 is connected to a cleaning brush plate 3023 via a plurality of compression elastic members 3022 .

[0060] The working principle and beneficial effects of the above technical solution are as follows: when the correction mechanism maintenance heat dissipation component 3 is working, the feed drive box 300 is used to provide maintenance fluid for the roller maintenance body 301, provide cleaning power for the belt cleaning mechanism 302, and provide heat dissipation airflow for the heat dissipation air supply mechanism 303. The roller maintenance body 301 is used to maintain the horizontal roller 205, the left inclined roller 206 and the right inclined roller 207. The belt cleaning mechanism 302 is used to clean the coal conveying belt 100. The heat dissipation air supply mechanism 303 is used to dissipate heat from the coal conveying belt 100.

[0061] When the belt cleaning mechanism 302 is working, specifically, the driving turntable 3008 rotates to drive the toggle block 3009 to move, and the toggle block 3009 intermittently cooperates with the toggle groove 3030 to intermittently drive the T-shaped piston rod 3006 to slide. At the same time, when the T-shaped piston rod 3006 slides to the limit position, the compression elastic member 3007 can push it to reset, and finally the T-shaped piston rod 3006 realizes reciprocating motion. The reciprocating motion of the T-shaped piston rod 3006 drives the support rod 3020 to reciprocate, thereby driving the folding plate 30 21 reciprocating motion, the folding plate 3021 reciprocates to drive the cleaning brush plate 3023 to reciprocate left and right. The reciprocating motion of the cleaning brush plate 3023 and the forward movement of the coal conveyor belt 100 can realize the cleaning of the back side of the coal conveyor belt 100, thereby avoiding the coal conveyor belt 100 running off the track due to a large number of impurities on the back side of the coal conveyor belt 100. At the same time, the reciprocating motion of the cleaning brush plate 3023 helps to promote a more uniform distribution of the media above the coal conveyor belt 100, thereby avoiding the coal conveyor belt 100 running off the track due to uneven distribution of the media.

[0062] Example 6

[0063] On the basis of Example 5, the feed drive box 300 is provided with two symmetrically arranged maintenance liquid extrusion boxes 304, and the maintenance liquid extrusion box 304 is slidably connected with an extrusion piston 3040, and the extrusion piston 3040 is sleeved with a compression elastic member 3041, and the extrusion piston 3040 is provided with a plurality of meshing teeth 1 3042, and the driving turntable 3008 is provided with a plurality of meshing teeth 2 3043, and the meshing teeth 2 3043 are used to mesh with the meshing teeth 1 3042, and the maintenance liquid extrusion box 304 is connected to the roller maintenance body 301 through a hose;

[0064] The roller maintenance body 301 includes a sleeve 3010, which is fixedly connected to the feeding drive box 300, and a height adjustment cylinder 3011 is fixedly connected inside the sleeve 3010, and a sliding cylinder 3012 is fixedly connected to the working end of the height adjustment cylinder 3011, and a micro motor 3013 is installed on the sliding cylinder 3012, and a micro gear 3014 is fixedly connected to the output end of the micro motor 3013, and a micro shaft 3015 is rotatably connected inside the sliding cylinder 3012, and two symmetrically arranged micro gears are fixedly connected to the micro shaft 3015. The micro gear one 3014 and the micro gear two 3016 are meshed with each other. The rocker 3017 is fixedly connected with a mounting block 3018. A short curved rod 3019 is connected to the mounting block 3018 through a bearing. The short curved rod 3019 is rotatably connected with an electric inclined maintenance roller 305. One end of the electric inclined maintenance roller 305 away from the short curved rod 3019 is rotatably connected to a maintenance bracket 3050. The maintenance bracket 3050 is slidably connected to the sleeve 3010. An electric horizontal maintenance roller 3051 is rotatably connected between the two maintenance brackets 3050.

[0065] The working principle and beneficial effects of the above technical solution are as follows: when the roller maintenance body 301 is working, the micro motor 3013 drives the micro gear 1 3014 to rotate, the micro gear 1 3014 drives the micro gear 2 3016 to rotate, the micro gear 2 3016 drives the micro shaft 3015 to rotate, the micro shaft 3015 drives the rocker 3017 to rotate, the rocker 3017 rotates to make the electric inclined maintenance roller 305 and the electric horizontal maintenance roller 3051 move in the direction close to the horizontal roller 205, the left inclined roller 206 and the right inclined roller 207, and then adjust the length of the height adjustment cylinder 3011, and finally make the two electric inclined maintenance rollers 305 and the electric horizontal maintenance roller 3051 respectively stick to the left inclined roller 206, the right inclined roller 207 and the horizontal roller 205. The two electric inclined maintenance rollers 305 and the electric horizontal maintenance roller 3051 rotate, and the feeding drive box 300 provides maintenance fluid for the roller maintenance body 301. The maintenance fluid is applied to the left inclined roller 206, the right inclined roller 207 and the horizontal roller 205 through the two electric inclined maintenance rollers 305 and the electric horizontal maintenance roller 3051. When the feeding drive box 300 does not provide maintenance fluid, the two electric inclined maintenance rollers 305 and the electric horizontal maintenance roller 3051 can clean the left inclined roller 206, the right inclined roller 207 and the horizontal roller 205 to ensure the cleanliness of the surface of the left inclined roller 206, the right inclined roller 207 and the horizontal roller 205, so as to avoid the deviation of the coal conveying belt 100 due to the large amount of impurities on the surface of the left inclined roller 206, the right inclined roller 207 and the horizontal roller 205;

[0066] When the feeding drive box 300 provides maintenance liquid for the roller maintenance body 301, the driving turntable 3008 rotates to drive the meshing tooth 2 3043 to move, and the meshing tooth 2 3043 intermittently meshes with the meshing tooth 1 3042, thereby driving the extrusion piston 3040 to reciprocate. During the reciprocating movement of the extrusion piston 3040, the maintenance liquid in the maintenance liquid extrusion box 304 flows to the two electric inclined maintenance rollers 305 and the electric horizontal maintenance roller 3051 through the hose.

[0067] Example 7

[0068] On the basis of Example 5, the heat dissipation and air supply mechanism 303 includes two symmetrically arranged rotating shaft mounting plates 3001, the rotating shaft mounting plates 3001 are fixedly connected in the strip mounting box 3000, the rotating shaft mounting plates 3001 are rotatably connected with a linkage rotating shaft 3002, one end of the linkage rotating shaft 3002 is fixedly connected with a linkage roller 3003, an arc groove 3004 is opened on the linkage roller 3003, an execution push rod 3005 is slidably connected in the arc groove 3004, the execution push rod 3005 is fixedly connected to the T-shaped piston rod 3006, and the other end of the linkage rotating shaft 3002 is fixedly connected with a bevel gear 303. 1. The strip installation box 3000 is rotatably connected with two symmetrically arranged heat dissipation shafts 3032, and the heat dissipation shaft 3032 is fixedly connected with a bevel gear 2 3034 and a plurality of heat dissipation pastes 3033. The bevel gear 2 3034 and the bevel gear 1 3031 are meshed with each other. An air inlet filter box 3035 is installed on the feeding drive box 300, and the heat dissipation paste 3033 is located in a heat dissipation cavity 3036. The outlet end of the heat dissipation cavity 3036 is connected with an air outlet plate 3037 through a hose. The air outlet plate 3037 is arranged on the feeding drive box 300, and a cooling plate 3038 is arranged on the inner wall of the heat dissipation cavity 3036.

[0069] The working principle and beneficial effects of the above technical solution are as follows: when the heat dissipation and air supply mechanism 303 is working, the T-shaped piston rod 3006 moves to drive the execution push rod 3005 to slide in the arc groove 3004, and the arc groove 3004 drives the linkage roller 3003 to rotate, the linkage roller 3003 rotates to drive the linkage shaft 3002 to rotate, the linkage shaft 3002 rotates to drive the bevel gear 1 3031 to rotate, the bevel gear 1 3031 drives the bevel gear 2 3034 to rotate, and the bevel gear 2 3034 rotates. 034 drives the heat dissipation shaft 3032 to rotate, and the heat dissipation shaft 3032 drives the heat dissipation slurry 3033 to rotate. The heat dissipation slurry 3033 rotates to draw the outside air into the heat dissipation cavity 3036 through the air inlet filter box 3035. After being cooled by the refrigeration plate 3038 in the heat dissipation cavity 3036, the air is input to the air outlet plate 3037 through the hose, and then blown to the coal conveyor belt 100 through the air outlet plate 3037, thereby avoiding excessive heating of the coal conveyor belt 100 and effectively extending the service life of the coal conveyor belt 100.

[0070] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A multi-stage automatic deviation correction device for a coal conveyor belt in a thermal power plant, characterized in that: It comprises a deviation correction sensor component (1), a multi-stage deviation correction mechanism (2) and a control system, wherein the control system is electrically connected to the deviation correction sensor component (1) and the multi-stage deviation correction mechanism (2); The deviation correction sensor component (1) is arranged on the multi-stage deviation correction mechanism (2). The deviation correction sensor component (1) is used to monitor the running state of the coal conveyor belt (100) in real time. When the coal conveyor belt (100) deviates, the deviation correction sensor component (1) will immediately send a deviation correction signal to the control system. The multi-stage deviation correction mechanism (2) is used to adjust the tension on both sides of the coal conveyor belt (100) to correct the deviation of the coal conveyor belt (100).

2. The multi-stage automatic deviation correction device for coal conveyor belts in thermal power plants according to claim 1 is characterized in that: The multi-stage deviation correction mechanism (2) comprises a base (200), the base (200) is rotatably connected to an electric main shaft (201), the electric main shaft (201) is fixedly connected to a roller mounting bracket (202), the roller mounting bracket (202) is mounted with two symmetrically arranged mounting supports (203) and two symmetrically arranged mounting supports (204), a horizontal roller (205) is rotatably connected between the two mounting supports (204), a left oblique roller (206) and a right oblique roller (207) are rotatably connected between the two groups of mounting supports (203) and the mounting brackets (204), the deviation correction sensor assembly (1) is rotatably connected to the side of the mounting support (203), and the two deviation correction sensor assemblies (1) are coaxial with the left oblique roller (206) and the right oblique roller (207), respectively, and are connected via bearings.

3. The multi-stage automatic deviation correction device for coal conveyor belts in thermal power plants according to claim 2 is characterized in that: The deviation correction sensor assembly (1) comprises a tapered roller (101), wherein the tapered roller (101) is rotatably connected to the side of the mounting support (203), and the two tapered rollers (101) are coaxial with the left oblique roller (206) and the right oblique roller (207), respectively, and are mounted on the corresponding rotating shafts of the left oblique roller (206) and the right oblique roller (207) through bearings; The conical roller (101) is provided with a pressure sensor, and the pressure sensor is used to detect the pressure of the coal conveying belt (100) on the surface of the conical roller (101).

4. The multi-stage automatic deviation-correcting device for coal conveyor belts in thermal power plants according to claim 3 is characterized in that: The invention also comprises a vertical roller mounting seat (102), wherein the vertical roller mounting seat (102) is mounted on a roller body mounting bracket (202), a roller shaft (103) is rotatably connected to the vertical roller mounting seat (102), an inclination sensor (104) is provided on the roller shaft (103), a roller (105) is connected to the roller shaft (103) via a bearing, and a roller speed sensor is provided on the roller (105).

5. The multi-stage automatic deviation correction device for coal conveyor belts in thermal power plants according to claim 4 is characterized in that: It also includes a deviation evaluation unit, which is electrically connected to the control system and is used to evaluate the deviation of the coal conveyor belt (100) based on formula (1): χ is the deviation coefficient of the coal conveyor belt (100), λ1 is the influence coefficient of the state of the tapered roller (101) on the deviation coefficient of the coal conveyor belt (100), e is a natural number, the value of which is 2.71, F1 is the detection value of the pressure sensor, F0 is the critical splitting pressure value of the deviation level of the coal conveyor belt (100), λ2 is the influence coefficient of the state of the roller (105) on the deviation coefficient of the coal conveyor belt (100), π is the circumference of the circle, the value of which is 3.14, L is the length of the roller shaft (103), a is the detection value of the inclination sensor (104), τ is the offset compensation coefficient of the coal conveyor belt (100), S0 is the critical splitting offset reference value of the deviation level of the coal conveyor belt (100), ω1 is the detection value of the roller speed sensor, and ω0 is the critical splitting speed reference value of the deviation level of the coal conveyor belt (100); when When the deviation of the coal conveying belt (100) is slight, the control system controls the multi-stage deviation correction mechanism (2) to correct the deviation of the coal conveying belt (100); When χ≥χ0, the degree of deviation of the coal conveyor belt (100) is severe, and the control system controls the coal conveyor belt (100) to perform emergency shutdown and maintenance.

6. The multi-stage automatic deviation correction device for coal conveyor belts in thermal power plants according to claim 1 is characterized in that: The invention also comprises a correction mechanism maintenance and heat dissipation assembly (3), the correction mechanism maintenance and heat dissipation assembly (3) comprising a feed drive box (300), the feed drive box (300) being mounted on a base (200) of the multi-stage correction mechanism (2) and being located at a preset distance behind the horizontal roller (205), the feed drive box (300) being provided with a roller maintenance body (301), a belt cleaning mechanism (302) and a heat dissipation and air supply mechanism (303), the feed drive box (300) being used to provide maintenance fluid for the roller maintenance body (301), provide cleaning power for the belt cleaning mechanism (302), and provide heat dissipation airflow for the heat dissipation and air supply mechanism (303).

7. The multi-stage automatic deviation-correcting device for coal conveyor belts in thermal power plants according to claim 6, characterized in that: The feeding drive box (300) is provided with a strip-shaped installation box (3000), and two symmetrically arranged T-shaped piston rods (3006) are slidably connected to the strip-shaped installation box (3000), and a compression elastic member (3007) is sleeved on the T-shaped piston rod (3006), and the two T-shaped piston rods (3006) are respectively fixedly connected with support rods (3020) of the belt cleaning mechanism (302), and two symmetrically arranged driving turntables (3008) are rotatably connected in the feeding drive box (300), and the driving turntable (3008) is radially slidably connected with a toggle block (3009), and the toggle block (3009) is connected to the driving turntable (3008) through a reset elastic member (3052), and a toggle groove (3030) is provided on the T-shaped piston rod (3006), and the toggle groove (3030) is used to cooperate with the toggle block (3009); The belt cleaning mechanism (302) comprises a folding plate (3021), wherein the folding plate (3021) is fixedly connected to a support rod (3020), and the folding plate (3021) is connected to a cleaning brush plate (3023) via a plurality of compression elastic members (3022).

8. The multi-stage automatic deviation-correcting device for coal conveyor belts in thermal power plants according to claim 7, characterized in that: The feed drive box (300) is provided with two symmetrically arranged maintenance liquid extrusion boxes (304), and the maintenance liquid extrusion box (304) is slidably connected with an extrusion piston (3040), and the extrusion piston (3040) is sleeved with a compression elastic member three (3041), and the extrusion piston (3040) is provided with a plurality of meshing teeth one (3042), and the driving turntable (3008) is provided with a plurality of meshing teeth two (3043), and the meshing teeth two (3043) are used to mesh with the meshing teeth one (3042), and the maintenance liquid extrusion box (304) is communicated with the roller maintenance body (301) through a hose.

9. The multi-stage automatic deviation-correcting device for coal conveyor belts in thermal power plants according to claim 8, characterized in that: The roller maintenance body (301) comprises a sleeve (3010), the sleeve (3010) is fixedly connected to the feeding drive box (300), a height adjustment cylinder (3011) is fixedly connected inside the sleeve (3010), a working end of the height adjustment cylinder (3011) is fixedly connected to a sliding cylinder (3012), a micro motor (3013) is installed on the sliding cylinder (3012), an output end of the micro motor (3013) is fixedly connected to a micro gear 1 (3014), a micro shaft (3015) is rotatably connected inside the sliding cylinder (3012), and two symmetrically arranged micro gears 2 (3014) are fixedly connected to the micro shaft (3015). The micro gear 1 (3014) and the micro gear 2 (3016) are meshed with each other, the micro gear 1 (3014) and the micro gear 2 (3016) are fixedly connected to the rocker (3017), a short curved rod (3019) is connected to the mounting block (3018) via a bearing, an electric inclined maintenance roller (305) is rotatably connected to the short curved rod (3019), one end of the electric inclined maintenance roller (305) away from the short curved rod (3019) is rotatably connected to a maintenance bracket (3050), the maintenance bracket (3050) is slidably connected to the sleeve (3010), and an electric horizontal maintenance roller (3051) is rotatably connected between the two maintenance brackets (3050).

10. The multi-stage automatic deviation-correcting device for coal conveyor belts in thermal power plants according to claim 7, characterized in that: The heat dissipation and air supply mechanism (303) comprises two symmetrically arranged rotating shaft mounting plates (3001), the rotating shaft mounting plates (3001) are fixedly connected in the strip-shaped mounting box (3000), a linkage rotating shaft (3002) is rotatably connected to the rotating shaft mounting plates (3001), one end of the linkage rotating shaft (3002) is fixedly connected to a linkage roller (3003), an arc groove (3004) is provided on the linkage roller (3003), an execution push rod (3005) is slidably connected in the arc groove (3004), the execution push rod (3005) is fixedly connected to the T-shaped piston rod (3006), the other end of the linkage rotating shaft (3002) is fixedly connected to a bevel gear 1 (3031), the strip-shaped The installation box (3000) is rotatably connected to two symmetrically arranged heat dissipation shafts (3032); the heat dissipation shafts (3032) are fixedly connected to bevel gear 2 (3034) and a plurality of heat dissipation pastes (3033); the bevel gear 2 (3034) and the bevel gear 1 (3031) are meshed with each other; an air inlet filter box (3035) is installed on the feeding drive box (300); the heat dissipation paste (3033) is located in a heat dissipation cavity (3036); an outlet end of the heat dissipation cavity (3036) is connected to an air outlet plate (3037) via a hose; the air outlet plate (3037) is arranged on the feeding drive box (300); and a cooling plate (3038) is provided on the inner wall of the heat dissipation cavity (3036).

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