Comprehensive protection device for mining light scraper conveyor

Abstract

The invention discloses a mining light scraper conveyor comprehensive protection device, and relates to the technical field of belt conveyors, the mining light scraper conveyor comprehensive protection device comprises a transportation table, a servo motor is fixedly mounted above the transportation table, a mounting plate is fixedly mounted above the transportation table, and a motor is fixedly mounted above the mounting plate. The device comprises a mounting plate, a snake plate is fixedly mounted on the surface of the mounting plate, a relay is fixedly mounted above the snake plate, a bearing roller rotatably penetrates through the surface of the mounting plate, the device further comprises a protection device, and the protection device comprises a supporting seat, a bearing rod, a rotating block, a nylon probe rod, a fixing plate, a proximity switch and a bearing plate. According to the comprehensive protection device for the mining light scraper conveyor, equipment can be monitored by detecting the deformation and motion state of the scraper, equipment faults are effectively reduced, and meanwhile the situation that the detection precision of the scraper is affected and potential safety hazards are increased due to the fact that the rotation amplitude is affected due to the fact that the position of the nylon feeler lever is inaccurate is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyors, in particular to a comprehensive protective device for a light-duty scraper conveyor for mining. Background Art

[0002] The comprehensive protection device for light scraper conveyors for mines is a safety protection system for mine conveying equipment. Its main purpose is to ensure the normal operation of the scraper conveyor and provide timely alarm and automatic protection in the event of failure or danger.

[0003] The patent with patent announcement number CN221439308U relates to a comprehensive protection device for a belt conveyor for a coal mine, including a conveyor, wherein legs are fixedly connected at the four corners of the lower end face of the conveyor, two fixed plates are symmetrically arranged laterally on one side of the lower end face of the conveyor, mounting openings are provided on the two fixed plates, mounting grooves are provided on the bottom wall and the top wall of the mounting openings, a cleaning mechanism for cleaning the surface of the conveyor belt is provided between the two bearings arranged laterally symmetrically, the driving motor is arranged to drive the driving rod to rotate, and the connecting plate on the driving rod drives the cleaning roller to rotate synchronously, the spacing between the scraper on the cleaning roller and the conveyor belt can be adjusted by the rotation of the cleaning roller, and the dirt on the surface of the conveyor belt can be scraped off by the cleaning mechanism, so that the conveyor belt can be kept clean and the damage caused by the material entering the conveying device can be avoided, thereby realizing the protection of the belt conveyor.

[0004] In the above patent, a driving motor is provided to drive the driving rod to rotate, and the connecting plate on the driving rod drives the cleaning roller to rotate synchronously, which can keep the conveyor belt clean and avoid damage caused by materials entering the conveying device, thereby protecting the belt conveyor. However, some structures of the equipment may be deformed due to wear after long-term operation. If it is not maintained in time, it may cause safety hazards. For this reason, a light scraper conveyor for mining with a protective device is designed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a comprehensive protection device for a light-duty scraper conveyor for mining, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a comprehensive protection device for a light scraper conveyor for mining, including a transport platform, a servo motor is fixedly installed on the top of the transport platform, a mounting plate is fixedly installed on the top of the transport platform, a snake plate is fixedly installed on the surface of the mounting plate, a relay is fixedly installed on the top of the snake plate, a receiving roller is rotatably penetrated on the surface of the mounting plate, a chain is arranged on the surface of the receiving roller, a scraper is fixedly installed on the surface of the chain, the output end of the servo motor is fixedly connected to the receiving roller, and also includes: a protection device, the protection device includes a support seat, a receiving rod, a rotating block, a nylon probe rod, a fixed plate, a proximity switch and a receiving plate, The rotation of the receiving roller drives the chain to rotate, and the rotation of the chain drives the scraper to move. The scraper moves to transport the raw materials. The support seat is fixedly installed above the mounting plate, and the receiving rod is fixedly passed through the left and right walls of the support seat. The rotating block is rotatably installed on the circumferential surface of the receiving rod. The nylon probe rod is fixedly passed through the left and right walls of the rotating block. The fixed plate is fixedly installed above the snake plate. The proximity switch is fixedly passed through the inner and outer walls of the fixed plate. The receiving plate is fixedly installed on the surface of the rotating block. When the scraper moves, it will contact and drive the nylon probe rod to rotate around the receiving rod. When the nylon probe rod rotates, one end of it will be close to the proximity switch. After the proximity switch senses the nylon probe rod, it will send a signal to the relay.

[0007] According to the above technical solution, two rotating blocks are provided, and the two rotating blocks are symmetrically distributed around the center of the receiving rod. A nylon probe rod is fixedly passed through the surface of the two rotating blocks. Two proximity switches are provided, and the two proximity switches are symmetrically distributed around the center of the fixed plate. The proximity switch is electrically connected to the relay. A No. 1 spring is provided between the receiving plate and the snake plate. The nylon probe rod will be reset under the action of the No. 1 spring to avoid the rotation amplitude being affected by the inaccurate position of the nylon probe rod, thereby affecting the detection accuracy of the scraper and increasing safety hazards.

[0008] According to the above technical scheme, the surface of the snake plate is provided with a scrubbing device for scrubbing the residue on the scraper surface, the scrubbing device comprises a fixed seat 1 and a rotating shaft, the fixed seat 1 is fixedly installed above the snake plate, the rotating shaft rotates and penetrates the left and right walls of the fixed seat 1, the scrubbing device also comprises a speed regulating disc, a sliding block 1, a fixed toothed disc, a fixed seat 2, a driven shaft, a driven toothed disc and a sliding block 2, the receiving roller rotates to drive the speed regulating disc to rotate, the speed regulating disc rotates to drive the rotating shaft to rotate, the speed regulating disc is fixedly installed on the circumferential surface of the rotating shaft, a moving groove 1 is provided on the surface of the snake plate, the sliding block 1 is slidably installed inside the moving groove 1, the fixed toothed disc is fixedly installed on the circumferential surface of the rotating shaft, the fixed seat 2 is fixedly installed above the snake plate, the driven shaft rotates and penetrates the left and right walls of the fixed seat 2, the driven toothed disc is fixedly installed on the circumferential surface of the driven shaft, a moving groove 2 is provided on the surface of the snake plate, the sliding block 2 is slidably installed inside the moving groove 2, the sliding block 1 reciprocates and brushes the slag remaining on the scraper surface through the wire brush below.

[0009] According to the above technical solution, the rotating shaft rotates and passes through the left and right walls of the mounting plate, the receiving roller and the rotating shaft are connected by a transmission belt, the fixed gear plate is meshed with the driven gear plate, a reciprocating spiral groove 1 is provided on the surface of the rotating shaft, the sliding block 1 is connected to the rotating shaft by a thread, a reciprocating spiral groove 2 is provided on the circumferential surface of the driven shaft, and the sliding block 2 is connected to the driven shaft by a thread.

[0010] According to the above technical solution, a wire brush 1 is arranged under the sliding block 1, and a wire brush 2 is arranged under the sliding block 2. The sliding block 1 and the sliding block 2 are staggered. Since the positions of the sliding block 2 and the sliding block 1 are staggered with each other, the brushing effect of the slag on the scraper surface is improved, the detection accuracy of the scraper is further improved, and the subsequent maintenance costs and safety hazards are reduced.

[0011] The t-shaped plate is provided with a limit plate, and the calibrating rod moves to contact the nylon probe rod and calibrate, which can effectively make the lower ends of the nylon probe rods on both sides always maintain in the same horizontal line.

[0012] According to the above technical solution, one end of the calibration rod close to the nylon probe rod is set to a concave surface, the lower part of the T-shaped plate is fixedly connected to the calibration rod, one end of the T-shaped plate close to the push plate is set to an arc surface, the side of the limit plate close to the T-shaped plate is set to bevel surface one, and the side of the limit plate close to the extrusion block is set to bevel surface two. After the scraper plate detection is completed, the sliding block two re-calibrates the nylon probe rod to realize the automation of the calibration device, effectively reduce the subsequent maintenance cost and extend the service life of the equipment.

[0013] According to the above technical solution, a No. 2 spring is arranged between the T-shaped plate and the inner wall of the slide groove, and the No. 2 spring can drive the T-shaped plate to reset. A No. 3 spring is arranged between the limit plate and the inner wall of the slot, and the No. 3 spring can drive the limit plate to reset.

[0014] The present invention provides a comprehensive protection device for a light-duty scraper conveyor for mining, which has the following beneficial effects: (1) The comprehensive protection device for the light scraper conveyor for mining, through the coordinated operation of relays, receiving rollers, chains, scrapers, support seats, receiving rods, rotating blocks, nylon probes, fixed plates and proximity switches, detects the scrapers by bringing the nylon probes on both sides close to the proximity switches, and monitors equipment faults by detecting the scrapers. When the chain on one side is loose, the scrapers will tilt. When the tilted scrapers contact the nylon probes on both sides, the time difference for the relay to receive the signal will increase. At this time, the alarm mechanism will be used to remind the staff to tighten the chain, which can effectively reduce the further expansion of accidents caused by equipment failures and reduce the time waste caused by production accidents. At the same time, the nylon probe is assisted in resetting under the action of the receiving plate and the No. 1 spring to avoid affecting the rotation range due to the inaccurate position of the nylon probe, thereby affecting the detection accuracy of the scrapers and increasing safety hazards.

[0015] (2) The comprehensive protection device for the light scraper conveyor for mining, through the coordinated operation among the fixed seat 1, the rotating shaft, the speed regulating disk, the sliding block 1, the fixed gear plate, the fixed seat 2, the driven shaft, the driven gear plate and the sliding block 2, enables the sliding block 1 to move back and forth and brush away the slag remaining on the scraper surface through a wire brush, thereby avoiding the different flatness of the two sides of the scraper surface due to the slag residue. The different flatness of the scraper surface will cause the rotation angle of the nylon probe rod to be different, thereby affecting the detection accuracy of the scraper. In addition, since the positions of the sliding block 2 and the sliding block 1 are staggered, the brushing effect of the slag on the scraper surface is improved, further improving the detection accuracy of the scraper, and reducing the subsequent maintenance cost and safety hazards.

[0016] (3) The comprehensive protection device for the light scraper conveyor for mining, through the coordinated operation of the calibration rod, T-shaped plate, limit groove, push plate, limit plate, extrusion block and connecting rod, enables the calibration rod to contact and calibrate the nylon probe rod, which can effectively keep the lower ends of the nylon probe rods on both sides on the same horizontal line at all times, avoiding the position deviation of the nylon probe rods on both sides due to equipment wear, improving the accuracy of detection and reducing subsequent maintenance costs. At the same time, the automation of the calibration device is realized under the action of the No. 2 spring and the No. 3 spring, effectively reducing subsequent maintenance costs and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the chain and scraper position structure of the present invention; Figure 3 It is a schematic diagram of the position structure of the rotating shaft and the sliding block of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle; Figure 5 This is a schematic diagram of the position structure of the T-shaped plate and the push plate of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram of part B in the middle; Figure 7 It is a schematic diagram of the position structure of the calibration rod and the limit plate of the present invention.

[0018] In the figure: 1. transport platform; 2. servo motor; 3. mounting plate; 4. snake plate; 41. slideway; 42. moving slot 1; 43. moving slot 2; 44. card slot; 5. relay; 6. receiving roller; 7. chain; 8. scraper; 9. support seat; 10. receiving rod; 11. rotating block; 12. nylon probe rod; 13. fixed plate; 14. proximity switch; 15. receiving plate; 16. spring No. 1; 171. fixed seat 1; 172. Rotating shaft; 173. Speed ​​regulating plate; 174. Sliding block one; 175. Fixed gear plate; 176. Fixed seat two; 177. Driven shaft; 178. Driven gear plate; 179. Sliding block two; 181. Calibration rod; 182. T-shaped plate; 1821. Limiting groove; 183. Push plate; 184. Limiting plate; 185. Extrusion block; 186. Connecting rod; 187. Spring No. 2; 188. Spring No. 3. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7, one embodiment of the present invention is: a comprehensive protection device for a light-duty scraper conveyor for mining, comprising a transport platform 1, a servo motor 2 is fixedly installed above the transport platform 1, a mounting plate 3 is fixedly installed above the transport platform 1, a snake plate 4 is fixedly installed on the surface of the mounting plate 3, a relay 5 is fixedly installed above the snake plate 4, a receiving roller 6 is rotatably penetrated on the surface of the mounting plate 3, a chain 7 is arranged on the surface of the receiving roller 6, a scraper 8 is fixedly installed on the surface of the chain 7, the output end of the servo motor 2 is fixedly connected to the receiving roller 6, and also includes: a protection device, the protection device includes a support seat 9, a receiving rod 10, a rotating block 11, a nylon probe rod 12, a fixed plate 13, a proximity switch 14 and a receiving plate 15, the receiving roller 6 rotates to drive the chain 7 to rotate, the chain 7 rotates to drive the scraper 8 to move, and the scraper 8 moves to transport the raw materials, the support seat 9 is fixedly installed above the mounting plate 3, The receiving rod 10 is fixedly passed through the left and right walls of the supporting seat 9, and the rotating block 11 is rotatably installed on the circumferential surface of the receiving rod 10. The nylon probe rod 12 is fixedly passed through the left and right walls of the rotating block 11, and the fixed plate 13 is fixedly installed above the snake plate 4. The proximity switch 14 is fixedly passed through the inner and outer walls of the fixed plate 13, and the receiving plate 15 is fixedly installed on the surface of the rotating block 11. When the scraper 8 moves, it will contact and drive the nylon probe rod 12 to rotate around the receiving rod 10 as the center. When the nylon probe rod 12 rotates, one end of the nylon probe rod 12 will be close to the proximity switch 14. After the proximity switch 14 senses the nylon probe rod 12, it will send a signal to the relay 5. Since there are two nylon probe rods 12, when the chain 7 on one side is loose, the scraper 8 will tilt. When the tilted scraper 8 contacts the nylon probe rods 12 on both sides, the time difference in receiving the signal by the relay 5 will increase. At this time, the alarm mechanism will be used to remind the staff to tighten the chain.

[0021] There are two rotating blocks 11, which are symmetrically distributed around the center of the receiving rod 10. Nylon probe rods 12 are fixedly passed through the surfaces of the two rotating blocks 11. There are two proximity switches 14, which are symmetrically distributed around the center of the fixed plate 13. The proximity switches 14 are electrically connected to the relay 5. A No. 1 spring 16 is arranged between the receiving plate 15 and the snake plate 4. The nylon probe rod 12 will be reset under the action of the No. 1 spring 16 to avoid the rotation amplitude being affected by the inaccurate position of the nylon probe rod 12, thereby affecting the detection accuracy of the scraper 8 and increasing safety hazards.

[0022] When this embodiment is working: the servo motor 2 is started, the output end of the servo motor 2 rotates to drive the receiving roller 6 to rotate, the receiving roller 6 rotates to drive the chain 7 to rotate, the chain 7 rotates to drive the scraper 8 to move, and the scraper 8 moves to transport the raw materials. During this process, when the scraper 8 moves, it will contact and drive the nylon probe rod 12 to rotate around the receiving rod 10. When the nylon probe rod 12 rotates, one end of it will approach the proximity switch 14. After the proximity switch 14 senses the nylon probe rod 12, it will send a signal to the relay 5. Since there are two nylon probe rods 12, when the chain 7 on one side is loose, the scraper 8 will tilt. When the tilted scraper 8 contacts the nylon probe rods 12 on both sides, the relay 5 will receive a signal. As the time difference increases, the alarm mechanism will be used to remind the staff to tighten the chain. At the same time, an alarm will also be triggered when the scraper 8 breaks, jumps, or breaks. This can effectively reduce the further expansion of accidents caused by equipment failures, reduce time waste caused by production accidents, and reduce the labor intensity of on-site employees. At the same time, the rotation of the nylon probe rod 12 drives the rotating block 11 to rotate, and the rotation of the rotating block 11 drives the receiving plate 15 to rotate. The receiving plate 15 rotates to squeeze the No. 1 spring 16 to contract, and then the nylon probe rod 12 will be reset under the action of the No. 1 spring 16 to avoid the rotation amplitude being affected by the inaccurate position of the nylon probe rod 12, thereby affecting the detection accuracy of the scraper 8 and increasing safety hazards.

[0023] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a scrubbing device for scrubbing the residue on the surface of the scraper 8 is provided on the surface of the snake plate 4, and the scrubbing device includes a fixed seat 171 and a rotating shaft 172, the fixed seat 171 is fixedly installed above the snake plate 4, and the rotating shaft 172 rotates through the left and right walls of the fixed seat 171, and the scrubbing device also includes a speed regulating disk 173, a sliding block 174, a fixed toothed disk 175, a fixed seat 176, a driven shaft 177, a driven toothed disk 178 and a sliding block 179, the receiving roller 6 rotates to drive the speed regulating disk 173 to rotate, and the speed regulating disk 173 rotates to drive the rotating shaft 172 to rotate, and the speed regulating disk 173 is fixedly installed on the circumferential surface of the rotating shaft 172, and a movable groove 42 is opened on the surface of the snake plate 4. , the sliding block 174 is slidably installed inside the moving groove 42, the fixed toothed disc 175 is fixedly installed on the circumferential surface of the rotating shaft 172, the fixed seat 176 is fixedly installed above the snake plate 4, the driven shaft 177 rotates and passes through the left and right walls of the fixed seat 176, the driven toothed disc 178 is fixedly installed on the circumferential surface of the driven shaft 177, and the surface of the snake plate 4 is provided with a moving groove 43, the sliding block 179 is slidably installed inside the moving groove 43, the sliding block 174 reciprocates to brush off the slag remaining on the surface of the scraper 8 through the wire brush below, so as to avoid different flatness on both sides of the scraper 8 due to the residual slag. The different flatness of the scraper 8 surface will make the rotation angle of the nylon probe 12 different, thereby affecting the detection accuracy of the scraper 8.

[0024] The rotating shaft 172 rotates and penetrates the left and right walls of the mounting plate 3. The receiving roller 6 is connected to the rotating shaft 172 through a transmission belt. The fixed gear plate 175 is meshed with the driven gear plate 178. A reciprocating spiral groove 1 is provided on the surface of the rotating shaft 172. The sliding block 174 is connected to the rotating shaft 172 through a thread. A reciprocating spiral groove 2 is provided on the circumferential surface of the driven shaft 177. The sliding block 2 179 is connected to the driven shaft 177 through a thread.

[0025] A wire brush 1 is provided under the sliding block 174, and a wire brush 2 is provided under the sliding block 2 179. The sliding block 174 and the sliding block 2 179 are staggered. Since the positions of the sliding block 2 179 and the sliding block 1 174 are staggered with each other, the brushing effect of the slag on the surface of the scraper 8 is improved, the detection accuracy of the scraper 8 is further improved, and the subsequent maintenance costs and safety hazards are reduced.

[0026] The surface of the snake plate 4 is provided with a calibration device for calibrating the position of the nylon probe rod 12, the calibration device includes a calibration rod 181 and a T-shaped plate 182, the calibration rod 181 is slidably installed under the snake plate 4, the surface of the snake plate 4 is provided with a slide groove 41, the T-shaped plate 182 is slidably installed inside the slide groove 41, the calibration device also includes a push plate 183, a limit plate 184, an extrusion block 185 and a connecting rod 186, when the sliding block 179 moves, the push plate 183 is driven to move, the push plate 183 moves to contact and squeeze the T-shaped plate 182 to move away from the sliding block 179, the push plate 183 is fixedly installed on the side of the sliding block 179 close to the fixed plate 13, the surface of the snake plate 4 is provided with a slot 44, the limit plate 18 The nylon probe rod 12 is slidably mounted inside the card slot 44, the extrusion block 185 is slidably mounted above the snake plate 4, the connecting rod 186 is rotatably mounted inside the extrusion block 185, and one end of the connecting rod 186 away from the extrusion block 185 is rotatably connected to the receiving plate 15. The surface of the T-shaped plate 182 is provided with a limiting groove 1821, and the calibration rod 181 moves to contact the nylon probe rod 12 and calibrates, which can effectively keep the lower ends of the nylon probe rods 12 on both sides at the same horizontal line, avoid the position deviation of the nylon probe rods 12 on both sides due to the wear of the equipment, and then make the rotation angles of the nylon probe rods 12 on both sides different in the subsequent detection process, reduce the error in the detection process of the scraper 8, improve the accuracy of the detection and reduce the subsequent maintenance cost.

[0027] The end of the calibration rod 181 close to the nylon probe rod 12 is set to a concave surface, the lower part of the T-shaped plate 182 is fixedly connected to the calibration rod 181, the end of the T-shaped plate 182 close to the push plate 183 is set to an arc surface, the side of the limit plate 184 close to the T-shaped plate 182 is set to bevel surface one, and the side of the limit plate 184 close to the extrusion block 185 is set to bevel surface two. After the scraper 8 is inspected, the sliding block 179 re-calibrates the nylon probe rod 12 to realize the automation of the calibration device, effectively reduce the subsequent maintenance cost and extend the service life of the equipment.

[0028] A No. 2 spring 187 is arranged between the T-shaped plate 182 and the inner wall of the slide groove 41, and the No. 2 spring 187 can drive the T-shaped plate 182 to reset. A No. 3 spring 188 is arranged between the limit plate 184 and the inner wall of the slot 44, and the No. 3 spring 188 can drive the limit plate 184 to reset.

[0029] When the embodiment is working, the receiving roller 6 rotates and drives the speed regulating disc 173 to rotate through the transmission belt, and the rotation of the speed regulating disc 173 drives the rotating shaft 172 to rotate, and the rotating shaft 172 rotates and drives the sliding block 174 to reciprocate inside the moving groove 42 through the reciprocating spiral groove 1, and the sliding block 174 reciprocates to brush the slag remaining on the surface of the scraper 8 through the wire brush below, so as to avoid the uneven flatness of the two sides of the scraper 8 due to the slag residue. The uneven flatness of the scraper 8 surface will cause the rotation angle of the nylon probe 12 to be different, thereby affecting To improve the detection accuracy of the scraper 8, when the rotating shaft 172 rotates, it drives the fixed toothed disc 175 to rotate, and the rotation of the fixed toothed disc 175 drives the driven toothed disc 178 to rotate, and the rotation of the driven toothed disc 178 drives the driven shaft 177 to rotate, and the rotation of the driven shaft 177 drives the sliding block 2 179 to move back and forth through the reciprocating spiral groove 2 on its surface, and because the positions of the sliding block 2 179 and the sliding block 1 174 are staggered with each other, the brushing effect of the slag on the surface of the scraper 8 is improved, thereby further improving the detection accuracy of the scraper 8 and reducing the subsequent maintenance costs and safety hazards.

[0030] When the sliding block 179 moves, it drives the pushing plate 183 to move. The pushing plate 183 moves to contact and squeeze the T-shaped plate 182 to move in the direction away from the sliding block 179. The movement of the T-shaped plate 182 drives the calibration rod 181 to move in the direction close to the nylon probe rod 12. The calibration rod 181 moves to contact the nylon probe rod 12 and calibrates, which can effectively make the lower ends of the nylon probe rods 12 on both sides always maintain the same horizontal line, avoid the position deviation of the nylon probe rods 12 on both sides due to the wear of the equipment, and then make the rotation angles of the nylon probe rods 12 on both sides different during the subsequent detection process, reduce the error in the detection process of the scraper 8, improve the accuracy of the detection and reduce the subsequent maintenance cost. At the same time, when the T-shaped plate 182 moves, it contacts and squeezes the limit plate 184 to move downward, and the limit plate 184 moves downward to squeeze the No. 3 spring 188 to contract. After the No. 3 spring 188 contracts, it resets and drives the limit plate 184 to The limit plate 184 moves upward and enters the limit groove 1821 on the surface of the T-shaped plate 182 and limits it. Then, the nylon probe rod 12 drives the rotating block 11 and the receiving plate 15 to rotate during the detection process. When the receiving plate 15 rotates, it drives one end of the connecting rod 186 to move downward. One end of the connecting rod 186 moves downward and drives the extrusion block 185 to move in the direction close to the T-shaped plate 182 through the other end. The extrusion block 185 moves to contact and squeeze the limit plate 184 to move downward. The limit plate 184 moves downward to release the limit on the T-shaped plate 182. After the limit is released, the T-shaped plate 182 moves in the direction close to the push plate 183 under the action of the second spring 187 and enters its motion trajectory. Then, the sliding block 179 recalibrates the nylon probe rod 12 after the detection of the scraper 8 is completed, so as to realize the automation of the calibration device, effectively reduce the subsequent maintenance cost and extend the service life of the equipment.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A comprehensive protection device for a light-duty scraper conveyor for mining, comprising a transport platform (1), a servo motor (2) fixedly mounted above the transport platform (1), a mounting plate (3) fixedly mounted above the transport platform (1), a serpentine plate (4) fixedly mounted on the surface of the mounting plate (3), a relay (5) fixedly mounted above the serpentine plate (4), a receiving roller (6) rotatably passing through the surface of the mounting plate (3), a chain (7) provided on the surface of the receiving roller (6), a scraper (8) fixedly mounted on the surface of the chain (7), an output end of the servo motor (2) fixedly connected to the receiving roller (6), characterized in that: Also includes: A protective device, the protective device comprising a support seat (9), a receiving rod (10), a rotating block (11), a nylon probe rod (12), a fixed plate (13), a proximity switch (14) and a receiving plate (15), wherein the support seat (9) is fixedly mounted above the mounting plate (3), the receiving rod (10) is fixedly penetrated through the left and right walls of the support seat (9), the rotating block (11) is rotatably mounted on the circumferential surface of the receiving rod (10), the nylon probe rod (12) is fixedly penetrated through the left and right walls of the rotating block (11), the fixed plate (13) is fixedly mounted above the snake plate (4), the proximity switch (14) is fixedly penetrated through the inner and outer walls of the fixed plate (13), and the receiving plate (15) is fixedly mounted on the surface of the rotating block (11); The surface of the snake plate (4) is provided with a scrubbing device for scrubbing residues on the surface of the scraper (8), the scrubbing device comprising a fixing seat (171) and a rotating shaft (172), the fixing seat (171) being fixedly mounted above the snake plate (4), and the rotating shaft (172) rotatingly penetrating the left and right walls of the fixing seat (171); The surface of the snake plate (4) is provided with a calibration device for calibrating the position of the nylon probe rod (12), the calibration device comprising a calibration rod (181) and a T-shaped plate (182), the calibration rod (181) being slidably mounted below the snake plate (4), the surface of the snake plate (4) being provided with a slide groove (41), and the T-shaped plate (182) being slidably mounted inside the slide groove (41).

2. The comprehensive protection device for a light-duty scraper conveyor for mining according to claim 1 is characterized in that: Two rotating blocks (11) are provided, and the two rotating blocks (11) are symmetrically distributed around the center of the receiving rod (10). A nylon probe rod (12) is fixedly passed through the surface of the two rotating blocks (11). Two proximity switches (14) are provided, and the two proximity switches (14) are symmetrically distributed around the center of the fixed plate (13). The proximity switches (14) are electrically connected to the relay (5). A No. 1 spring (16) is provided between the receiving plate (15) and the snake plate (4).

3. The comprehensive protection device for a light-duty scraper conveyor for mining according to claim 2 is characterized in that: The scrubbing device further comprises a speed regulating disc (173), a first sliding block (174), a fixed toothed disc (175), a second fixed seat (176), a driven shaft (177), a driven toothed disc (178) and a second sliding block (179), wherein the speed regulating disc (173) is fixedly mounted on the circumferential surface of the rotating shaft (172), a first moving groove (42) is formed on the surface of the snake plate (4), and the first sliding block (174) is slidably mounted inside the first moving groove (42). The fixed toothed disc (175) is fixedly mounted on the circumferential surface of the rotating shaft (172), the second fixed seat (176) is fixedly mounted above the snake plate (4), the driven shaft (177) rotates and penetrates the left and right walls of the second fixed seat (176), the driven toothed disc (178) is fixedly mounted on the circumferential surface of the driven shaft (177), the surface of the snake plate (4) is provided with a second moving groove (43), and the second sliding block (179) is slidably mounted inside the second moving groove (43).

4. The comprehensive protection device for a light-duty scraper conveyor for mining according to claim 3 is characterized in that: The rotating shaft (172) rotates and penetrates the left and right walls of the mounting plate (3); the receiving roller (6) is connected to the rotating shaft (172) via a transmission belt; the fixed toothed disc (175) meshes with the driven toothed disc (178); a reciprocating spiral groove 1 is provided on the surface of the rotating shaft (172); the sliding block 1 (174) is connected to the rotating shaft (172) via a thread; a reciprocating spiral groove 2 is provided on the circumferential surface of the driven shaft (177); and the sliding block 2 (179) is connected to the driven shaft (177) via a thread.

5. The comprehensive protection device for a light-duty scraper conveyor for mining according to claim 4 is characterized in that: A first steel wire brush is disposed below the first sliding block (174), and a second steel wire brush is disposed below the second sliding block (179). The first sliding block (174) and the second sliding block (179) are arranged in an alternating manner.

6. The comprehensive protection device for a light-duty scraper conveyor for mining according to claim 5 is characterized in that: The calibration device further comprises a push plate (183), a limit plate (184), an extrusion block (185) and a connecting rod (186); the push plate (183) is fixedly mounted on a side of the second sliding block (179) close to the fixed plate (13); a slot (44) is provided on the surface of the snake plate (4); the limit plate (184) is slidably mounted inside the slot (44); the extrusion block (185) is slidably mounted above the snake plate (4); the connecting rod (186) is rotatably mounted inside the extrusion block (185); one end of the connecting rod (186) away from the extrusion block (185) is rotatably connected to the receiving plate (15); and a limit slot (1821) is provided on the surface of the T-shaped plate (182).

7. The comprehensive protection device for a light-duty scraper conveyor for mining according to claim 6 is characterized in that: One end of the calibration rod (181) close to the nylon probe rod (12) is configured as a concave surface, the lower side of the T-shaped plate (182) is fixedly connected to the calibration rod (181), one end of the T-shaped plate (182) close to the push plate (183) is configured as a curved surface, one side of the limit plate (184) close to the T-shaped plate (182) is configured as a first bevel surface, and one side of the limit plate (184) close to the extrusion block (185) is configured as a second bevel surface.

8. The comprehensive protection device for a light-duty scraper conveyor for mining according to claim 7 is characterized in that: A No. 2 spring (187) is provided between the T-shaped plate (182) and the inner wall of the slide groove (41), and a No. 3 spring (188) is provided between the limit plate (184) and the inner wall of the clamping groove (44).

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