Blast furnace charge level height monitoring equipment

Abstract

The invention belongs to the technical field of metal smelting, and particularly relates to blast furnace charge level height monitoring equipment which comprises a protective shell, a stock rod measuring device is arranged in the protective shell and comprises a workbench, a reciprocating rack moves to push a first scraping plate to be attached to the contact face of a second gear and a base, and the first scraping plate is driven by the reciprocating rack to move. Therefore, when the second gear rotates, lubricating oil and dust mixtures attached to the outer ring face of the second gear are scraped away, tight and smooth contact between the rotating shaft and the base can be ensured, and measurement errors caused by gap changes are reduced. Meanwhile, lubricating oil stored between the piston block and the piston cylinder can be extruded to the second gear rotating shaft through the oil outlet pipe through movement of the piston block, so that the lubricating oil forms a layer of lubricating film between the rotating shaft and the supporting surface, the friction coefficient of the contact surface is effectively reduced, the friction resistance is reduced, abrasion of the rotating shaft and related parts is reduced, and the service life of the rotating shaft is prolonged. Therefore, the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of metal smelting, in particular to a blast furnace material level monitoring device. Background Art

[0002] Blast furnace material surface height monitoring equipment usually refers to equipment that can measure the material surface height inside the blast furnace in real time and accurately. This type of equipment plays an important role in the steel industry. It can help operators understand the situation of the material surface inside the blast furnace in a timely manner, thereby adjusting production parameters and ensuring the stable operation of the blast furnace.

[0003] In the prior art, when detecting the material surface of a blast furnace, it is usually necessary to correctly install the equipment on the roof of the blast furnace, and perform parameter setting and calibration before the equipment is officially put into operation. When the calibration and other preliminary work are completed, the motor is started to rotate to prompt the weight to maintain a uniform speed and fall freely. When the weight contacts the material surface, it will be affected by the resistance of the material surface, and its speed will change. The displacement and speed change of the weight will be recorded by an encoder or other sensor, thereby calculating the height of the material surface.

[0004] There are still some problems in the actual application of the above scheme. During the transportation of ore, a large amount of dust will be raised due to the drop and impact of the material. The dust will float in the air. At the shaft of the winding device in the probe, due to the mechanical movement and airflow, it is easier to adsorb and accumulate dust. When the shaft rotates, the surrounding dust is brought into the contact surface between the base and the shaft, and gradually adheres to the surface under the action of friction, which will cause the gap between the shaft and the base to be blocked or stuck, making it impossible for the probe to rise or fall or work normally, which will not only affect the normal production of the blast furnace, but may also cause equipment damage or safety accidents. At the same time, long-term high friction will accelerate the wear of the shaft and the base, making the contact surface rough and uneven, which will not only further increase friction and energy consumption, but also affect the accuracy and stability of the probe. In addition, through the added reciprocating cleaning mechanism, the lubricating oil between the shaft and the base will be lost during operation, which will cause thermal damage to the materials of the shaft and the base, such as thermal expansion, thermal stress, etc., further affecting the performance and life of the equipment.

[0005] To this end, the present invention provides a blast furnace charge level monitoring device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a blast furnace material level monitoring device described in the present invention includes a protective shell, a probe measuring device is arranged inside the protective shell, the probe measuring device includes a workbench, the workbench is fixedly connected to the inside of the protective shell, a driving source is fixedly arranged on the upper part of the workbench, a first gear is fixedly connected to the output end of the driving source, a second gear is meshed on the outer ring surface of the first gear, a winding drum is fixedly connected to the other end of the second gear, a steel cable is sleeved on the outer ring surface of the winding drum, a limiting wheel is slidably connected to the outer ring surface of the steel cable, a heavy hammer is fixedly connected to the side of the limiting wheel, a plurality of fixed blocks fixed by screws are arranged on the end of the steel cable close to the heavy hammer, and a reciprocating cleaning mechanism is arranged on the side of the probe measuring device;

[0008] The reciprocating cleaning mechanism includes a base fixedly arranged on the upper part of the workbench, a horizontal "F"-shaped cavity is opened inside the base, and a first scraper is slidably arranged above the horizontal inner cavity of the base. The dust adhered to the second gear shaft part can be scraped off through the horizontal movement of the first scraper.

[0009] Preferably, the base is fixedly connected above the workbench, a motor is fixedly provided on the side wall of the inner cavity of the base, and a main rotating gear is fixedly connected to the output end of the motor.

[0010] Preferably, the outer ring surface of the main rotating gear is meshed with a first transmission gear, a first rotating shaft is fixedly connected to the middle of the first transmission gear, the first rotating shaft is rotatably connected to the side wall of the inner cavity of the base, a first sector gear is fixedly connected to the top of the first rotating shaft, and a reciprocating rack is meshed on the outer ring surface of the first sector gear.

[0011] Preferably, the side of the reciprocating rack is meshed with a second sector gear, the middle of the second sector gear is fixedly connected to a second rotating shaft, the outer ring surface in the middle of the second rotating shaft is fixedly connected to a second transmission gear, and the second transmission gear is rotatably connected to the side wall of the inner cavity of the base.

[0012] Preferably, one end of the reciprocating rack away from the main rotating gear is fixedly connected to a first scraper.

[0013] Preferably, a second scraper is fixedly connected to the upper side of the inner cavity of the base close to the first scraper, and the bottom of the second scraper fits with the top of the first scraper.

[0014] Preferably, a filter box is slidably connected to the side wall of the inner cavity of the base, and a collection box is slidably connected to the side wall of the inner cavity of the base, and the filter box, the collection box and the second scraper are on the same vertical plane.

[0015] Preferably, a lubrication mechanism for adding lubricating oil is provided on the top of the reciprocating cleaning mechanism, and the lubrication mechanism includes a piston cylinder, the piston cylinder penetrates and is fixedly connected to the upper part of the base, and a cavity is opened inside the piston cylinder.

[0016] Preferably, the piston cylinder inner cavity annular surface is slidingly connected to a piston block, a reciprocating spring is fixedly connected to one side of the piston block, an end of the reciprocating spring away from the piston block is fixedly connected to the side of the piston cylinder away from the piston block, a piston rod is fixedly connected to the middle part of the side of the piston block close to the reciprocating spring, and a push-pull rod is fixedly connected to the end of the piston rod away from the piston block.

[0017] Preferably, an oil outlet pipe is passed through and fixedly connected to the outer ring surface of the piston block, an oil inlet pipe is passed through and fixedly connected to the outer ring surface of the piston block, an end of the oil inlet pipe away from the piston cylinder is passed through and fixedly connected to an oil storage box, the oil storage box is fixedly connected above the middle part of the base, a one-way valve is arranged between the oil outlet pipe and the piston block, and a one-way valve is arranged between the oil inlet pipe and the piston block.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. A blast furnace material level monitoring device described in the present invention, before the second gear rotates, since the initial state teeth of the first sector gear and the second sector gear are both facing away from the second gear, at this time, the main rotating gear is driven by the starting motor to rotate clockwise, and when the main rotating gear rotates clockwise, it will drive the first transmission gear and the second transmission gear meshing therewith to rotate counterclockwise. At this time, driven by the first transmission gear and the second transmission gear, the first rotating shaft and the second rotating shaft will also rotate synchronously, and drive the first sector gear and the second sector gear on the top thereof to rotate synchronously. When the first sector gear and the second sector gear rotate, the first sector gear will reciprocate the meshing therewith. The rack is pushed toward the direction of the second gear along the guide groove opened in the inner cavity of the base, thereby driving the first scraper to move synchronously. When the teeth of the first sector gear and the second sector gear are both facing the second gear, the motor will stop moving, and at this time the reciprocating rack will push the first scraper to fit the contact surface between the second gear and the base, so as to scrape off the lubricating oil and dust mixture attached to the outer ring surface of the second gear when the second gear rotates, thereby ensuring that the contact between the rotating shaft and the base is close and smooth, reducing the measurement error caused by the gap change, and at the same time, it can reduce the friction between the rotating shaft and the base at the second gear to prevent the rotating shaft from getting stuck or rotating poorly due to dust accumulation, thereby ensuring the stable operation of the probe system.

[0020] 2. A blast furnace material level monitoring device described in the present invention, when the first scraper completes the cleaning work of the outer ring surface of the second gear shaft, the second sector gear will rotate counterclockwise to pull the first scraper in the direction away from the second gear, so that the first scraper does not contact the outer ring surface of the second gear shaft, and when the first scraper moves, it will drive the push-pull rod abutting against its side to move synchronously, and then drive the piston rod fixed to it to move synchronously, and when the piston rod moves, the piston block will also move synchronously and squeeze the lubricating oil stored between the piston block and the piston cylinder through the oil outlet pipe to the second gear shaft, so that the lubricating oil forms a lubricating film between the shaft and the supporting surface, effectively reducing the friction coefficient of the contact surface, thereby reducing the friction resistance, and then reducing the wear of the shaft and its related components, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the protective shell shown in the present invention;

[0024] Figure 3 It is a schematic diagram of the position structure of the probe measuring device, the reciprocating cleaning mechanism and the lubricating mechanism shown in the present invention;

[0025] Figure 4 The present invention shows Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the internal structure of the base shown in the present invention;

[0027] Figure 6 It is a schematic diagram of the position structure of the base inner cavity and the reciprocating rack shown in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of some components of the reciprocating cleaning mechanism shown in the present invention;

[0029] Figure 8 It is a schematic diagram of the positional relationship between the reciprocating cleaning mechanism and the lubricating mechanism shown in the present invention;

[0030] Fig. 9 The present invention shows Figure 8 The enlarged structural diagram at B in the middle;

[0031] Fig.10 It is a schematic diagram of the internal structure of the lubrication mechanism shown in the present invention;

[0032] In the figure: 1. Protective housing;

[0033] 2. Probe measuring device; 201. Workbench; 202. Driving source; 203. First gear; 204. Second gear; 205. Winding drum; 206. Steel cable; 207. Limiting wheel; 208. Heavy hammer; 209. Fixed block;

[0034] 3. Reciprocating cleaning mechanism; 301. Base; 302. Motor; 303. Main rotating gear; 304. First transmission gear; 305. First rotating shaft; 306. First sector gear; 307. Reciprocating rack; 308. Second sector gear; 309. Second transmission gear; 310. Second rotating shaft; 311. First scraper; 312. Filter box; 313. Collecting box; 314. Second scraper;

[0035] 4. Lubrication mechanism; 401. Piston cylinder; 402. Piston block; 403. Reciprocating spring; 404. Piston rod; 405. Push-pull rod; 406. Oil outlet pipe; 407. Oil inlet pipe; 408. Oil storage box. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] Embodiment 1

[0038] like Figures 1 to 10 As shown, a blast furnace material level monitoring device described in an embodiment of the present invention includes a protective shell 1, a probe measuring device 2 is arranged inside the protective shell 1, the probe measuring device 2 includes a workbench 201, the workbench 201 is fixedly connected to the inside of the protective shell 1, a driving source 202 is fixedly arranged on the upper part of the workbench 201, a first gear 203 is fixedly connected to the output end of the driving source 202, a second gear 204 is meshed on the outer ring surface of the first gear 203, a winding drum 205 is fixedly connected to the other end of the second gear 204, a steel cable 206 is sleeved on the outer ring surface of the winding drum 205, a limit wheel 207 is slidably connected to the outer ring surface of the steel cable 206, a weight 208 is fixedly connected to the side of the limit wheel 207, a plurality of fixed blocks 209 fixed by screws are arranged at one end of the steel cable 206 close to the weight 208, and a reciprocating cleaning mechanism 3 is arranged on the side of the probe measuring device 2;

[0039] The reciprocating cleaning mechanism 3 includes a base 301 fixedly arranged on the upper part of the workbench 201, and a horizontal "F"-shaped cavity is opened inside the base 301. A first scraper 311 is slidably arranged above the horizontal inner cavity of the base 301. Through the horizontal movement of the first scraper 311, dust adhered to the shaft part of the second gear 204 can be scraped off.

[0040] Specifically, a large amount of dust will be raised due to the drop and impact of materials during the transportation of ore, and the dust will float in the air. The shaft of the winding device in the probe is more likely to absorb and accumulate dust due to the mechanical movement and airflow, and when the shaft rotates, the surrounding dust is brought into the contact surface between the base 301 and the shaft, and gradually adheres to the surface under the action of friction, which will cause the gap between the shaft and the base 301 to be blocked or stuck, making it impossible for the probe to be lifted or worked normally, which will not only affect the normal production of the blast furnace, but also may cause equipment damage or safety accidents. At the same time, long-term high friction will accelerate the wear of the shaft and the base 301, making the contact surface rough and uneven, which will not only further increase friction and energy consumption, but also affect the accuracy and stability of the probe.

[0041] Therefore, the present invention solves this problem by setting up a corresponding structure. In the blast furnace material level monitoring device described in the present invention, during the iron-making process, by starting the driving source 202, the first gear 203 fixedly connected to the output shaft of the driving source 202 is driven to rotate synchronously. At this time, the second gear 204 meshing with the outer ring surface of the first gear 203 will rotate in the opposite direction. When the second gear 204 rotates, it will drive the winding drum 205 fixed thereto to rotate synchronously, and the steel cable 206 sleeved on the outer ring surface of the winding drum 205 will be affected by the gravity of the weight 208 and the rotation of the winding drum 205, so that the weight 208 will move toward the inside of the blast furnace. When the steel cable 206 is lowered into the blast furnace, a limiting roller can be added to the steel cable 206, and the steel cable 206 can be bypassed by the limiting roller, and the steel cable 206 is supported and limited by the limiting roller. , to prevent the steel cable 206 from directly contacting the side wall of the blast furnace and causing wear. At this time, since the steel cable 206 is in direct contact with the high temperature and gas in the furnace, and is affected by the high temperature and gas scouring, the connection between the steel cable 206 and the weight 208 is easily broken, causing the chain and the weight to fall off. At this time, a core ring is added at the connection between the steel cable 206 and the weight 208 to increase the curvature radius of the steel wire rope, and the limit wheel 207 is used to connect the weight 208 to reduce the breakage of the steel wire rope caused by high temperature baking and gas scouring. At the same time, the first scraper 311 inside the base 301 is moved to make its scraping end fit with the rotating shaft of the second gear 204, so that the dust on the surface of the second gear 204 is scraped off when the second gear 204 rotates, thereby ensuring that the contact between the rotating shaft and the base 301 is close and smooth, reducing the measurement error caused by the gap change.

[0042] Embodiment 2

[0043] like Figures 2 to 10 As shown in Comparative Example 1, another embodiment of the present invention is:

[0044] like Figure 3As shown, in this embodiment, the base 301 is fixedly connected above the workbench 201, a motor 302 is fixedly provided on the inner cavity side wall of the base 301, and a main rotating gear 303 is fixedly connected to the output end of the motor 302.

[0045] Specifically, before the blast furnace fabric inspection is performed, the second gear 204 is driven to rotate clockwise by starting the driving source 202, and the main rotating gear 303 fixedly connected to the output shaft of the motor 302 is driven to rotate clockwise synchronously by starting the motor 302, thereby providing power support for subsequent components.

[0046] like Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, the outer ring surface of the main rotating gear 303 is meshed with the first transmission gear 304, the middle part of the first transmission gear 304 is fixedly connected with the first rotating shaft 305, the first rotating shaft 305 is rotatably connected to the side wall of the inner cavity of the base 301, the top of the first rotating shaft 305 is fixedly connected with the first sector gear 306, the outer ring surface of the first sector gear 306 is meshed with a reciprocating rack 307, and the side of the reciprocating rack 307 is meshed with the second sector gear 308.

[0047] Specifically, in the initial state, the teeth of the first sector gear 306 and the second sector gear 308 are oriented away from the second gear 204, and both are meshed with the reciprocating rack 307. At this time, since the main rotating gear 303 rotates clockwise, the first transmission gear 304 meshed therewith will rotate counterclockwise. Since the first transmission gear 304 is fixed to the middle of the outer annular surface of the first rotating shaft 305, the first rotating shaft 305 will also rotate synchronously and drive the first sector gear 306 to rotate synchronously. At this time, the second sector gear 308 is not meshed with the reciprocating rack 307. Therefore, when the first sector gear 306 rotates counterclockwise, it will drive the reciprocating rack 307 to the second gear 20 4, when the first sector gear 306 and the second sector gear 308 approach the second gear 204 to one side of the tooth, the reciprocating rack 307 will push the first scraper 311 away from the side of the reciprocating rack 307 and fit with the outer ring surface of the rotating shaft of the second gear 204, so as to scrape off the lubricating oil and dust mixture attached to the outer ring surface of the second gear 204 when the second gear 204 rotates, thereby ensuring that the contact between the rotating shaft and the base 301 is tight and smooth, reducing the measurement error caused by the gap change, and at the same time, reducing the friction between the rotating shaft at the second gear 204 and the base 301 to prevent the rotating shaft from getting stuck or rotating poorly due to dust accumulation, thereby ensuring the stable operation of the probe system.

[0048] like Figure 5 , Figure 6 and Figure 7As shown, in this embodiment, a second rotating shaft 310 is fixedly connected to the middle part of the second sector gear 308, a second transmission gear 309 is fixedly connected to the outer ring surface in the middle part of the second rotating shaft 310, the second transmission gear 309 is rotatably connected to the side wall of the inner cavity of the base 301, and the end of the reciprocating rack 307 away from the main rotating gear 303 is fixedly connected to the first scraper 311.

[0049] Specifically, the main rotating gear 303 rotates clockwise under the drive of the motor 302, and at the same time drives the second transmission gear 309 meshing therewith to rotate counterclockwise. Since the second transmission gear 309 is fixed on the outer ring surface of the second rotating shaft 310, and the second rotating shaft 310 is rotatably connected to the side wall of the inner cavity of the base 301, the second rotating shaft 310 will also rotate synchronously, thereby driving the second sector gear 308 on the top thereof to rotate synchronously. The wall is provided with a guide groove adapted to the bottom protrusion of the reciprocating rack 307, so when the second sector gear 308 rotates, it will pull the reciprocating rack 307 and the first scraper 311 fixed at one end of the reciprocating rack 307 to move toward the direction close to the main rotating gear 303. At this time, the first scraper 311 will move away from the surface of the output shaft of the first gear 203. The guide groove opened on the side wall of the inner cavity of the base 301 and the protrusion at the bottom of the reciprocating rack 307 can limit the reciprocating rack 307 when it moves, so that it can move in a straight line.

[0050] like Figure 8 As shown, in this embodiment, a second scraper 314 is fixedly connected to the upper side of the inner cavity of the base 301 close to the first scraper 311 , and the bottom of the second scraper 314 fits with the top of the first scraper 311 .

[0051] Specifically, when the reciprocating rack 307 moves laterally, it will pull the first scraper 311 to move synchronously. Since the second gear 204 rotates clockwise, the dust on the contact surface between the second gear 204 and the base 301 will be scraped off to the upper surface of the first scraper 311. The upper surface of the first scraper 311 is in contact with the second scraper 314, so the dust on the upper part of the first scraper 311 will be scraped off during the movement of the first scraper 311, thereby improving the cleanliness of the rotating shaft of the second gear 204 during the next operation.

[0052] like Figure 8 As shown, in this embodiment, a filter box 312 is slidably connected to the inner side wall of the base 301, and a collection box 313 is slidably connected to the inner side wall of the base 301. The filter box 312, the collection box 313 and the second scraper 314 are on the same vertical plane.

[0053] Specifically, since the collection box 313, the filter box 312 and the second scraper 314 are on the same vertical plane, when the second scraper 314 scrapes the mixture of dust and lubricating oil on the first scraper 311, it will fall to the filter box 312. At the same time, since there are multiple groups of small holes at the bottom of the filter box 312, the lubricating oil will be filtered into the collection box 313, thereby reducing the consumption of lubricating oil.

[0054] like Figure 8 As shown, in this embodiment, a lubricating mechanism 4 for adding lubricating oil is arranged on the top of the reciprocating cleaning mechanism 3. The lubricating mechanism 4 includes a piston cylinder 401. The piston cylinder 401 penetrates and is fixedly connected to the upper part of the base 301. A cavity is opened inside the piston cylinder 401.

[0055] Specifically, by fixing the piston cylinder 401 on the upper part of the base 301 , the lubricating oil can be applied between the rotating shaft and the base 301 by utilizing the fluidity of the lubricating oil and the rotation of the rotating shaft of the winding drum 205 .

[0056] like Figure 8 and Fig. 9 As shown, in this embodiment, the inner ring surface of the piston cylinder 401 is slidably connected to the piston block 402, a reciprocating spring 403 is fixedly connected to one side of the piston block 402, the end of the reciprocating spring 403 away from the piston block 402 is fixedly connected to the side of the piston cylinder 401 away from the piston block 402, a piston rod 404 is fixedly connected to the middle part of the side of the piston block 402 close to the reciprocating spring 403, and the end of the piston rod 404 away from the piston block 402 is fixedly connected to the push-pull rod 405.

[0057] Specifically, since the first scraper 311 will abut against the side of the push-pull rod 405 during movement, it will synchronously pull the piston rod 404 fixedly connected to its top to move synchronously, and then pull the piston block 402 to move. At this time, the reciprocating spring 403 is in a compressed state. The setting of the reciprocating spring 403 facilitates the subsequent resetting of the piston block 402.

[0058] like Figure 8 , Fig. 9 and Fig.10 As shown, in this embodiment, an oil outlet pipe 406 is passed through and fixedly connected to the outer ring surface of the piston block 402, an oil inlet pipe 407 is passed through and fixedly connected to the outer ring surface of the piston block 402, an end of the oil inlet pipe 407 away from the piston cylinder 401 is passed through and fixedly connected to an oil storage box 408, and the oil storage box 408 is fixedly connected above the middle of the base 301, a one-way valve is arranged between the oil outlet pipe 406 and the piston block 402, and a one-way valve is arranged between the oil inlet pipe 407 and the piston block 402.

[0059] Specifically, while the piston block 402 moves, the lubricating oil stored on the side of the piston block 402 close to the reciprocating spring 403 will flow out through the one-way valve between the piston block 402 and the oil outlet pipe 406. Since the piston block 402 and the oil inlet pipe 407 are also provided with a one-way valve, the lubricating oil will not flow back into the oil storage box 408 through the oil inlet pipe 407 at this time. At this time, the compression of the piston block 402 causes the lubricating oil to flow to the junction of the second gear 204 shaft and the base 301, so that the lubricating oil can form a lubricating film between the shaft and the support surface, effectively reducing the friction coefficient of the contact surface, thereby reducing the frictional resistance, and further reducing the wear of the shaft and its related components, thereby extending the service life of the equipment.

[0060] Working principle: before conducting blast furnace fabric inspection, the second gear 204 is driven to rotate clockwise by starting the driving source 202, and the main rotating gear 303 fixedly connected to the output shaft of the motor 302 is driven to rotate clockwise synchronously by starting the motor 302, thereby providing power support for subsequent components.

[0061] In the initial state, the teeth of the first sector gear 306 and the second sector gear 308 are oriented away from the second gear 204, and both are meshed with the reciprocating rack 307. At this time, since the main rotating gear 303 rotates clockwise, the first transmission gear 304 meshed therewith will rotate counterclockwise. Since the first transmission gear 304 is fixed to the middle of the outer annular surface of the first rotating shaft 305, the first rotating shaft 305 will also rotate synchronously and drive the first sector gear 306 to rotate synchronously. At this time, the second sector gear 308 is not meshed with the reciprocating rack 307. Therefore, when the first sector gear 306 rotates counterclockwise, it will drive the reciprocating rack 307 to the second gear 204. When the first sector gear 306 and the second sector gear 308 approach the second gear 204 on one side of the teeth, the reciprocating rack 307 will push the first scraper 311 away from the side of the reciprocating rack 307 and fit with the outer ring surface of the rotating shaft of the second gear 204, so as to scrape off the lubricating oil and dust mixture attached to the outer ring surface of the second gear 204 when the second gear 204 rotates, thereby ensuring that the contact between the rotating shaft and the base 301 is tight and smooth, reducing the measurement error caused by the gap change, and at the same time, reducing the friction between the rotating shaft at the second gear 204 and the base 301 to prevent the rotating shaft from getting stuck or rotating poorly due to dust accumulation, thereby ensuring the stable operation of the probe system.

[0062] Because the main rotating gear 303 rotates clockwise under the drive of the motor 302, it will drive the second transmission gear 309 meshing with it to rotate counterclockwise. Since the second transmission gear 309 is fixed on the outer ring surface of the second rotating shaft 310, and the second rotating shaft 310 is rotatably connected to the side wall of the inner cavity of the base 301, the second rotating shaft 310 will also rotate synchronously, thereby driving the second sector gear 308 on its top to rotate synchronously. A guide groove is provided which matches the bottom protrusion of the reciprocating rack 307, so when the second sector gear 308 rotates, the reciprocating rack 307 and the first scraper 311 fixed at one end of the reciprocating rack 307 will be pulled toward the direction close to the main rotating gear 303. At this time, the first scraper 311 will move away from the surface of the output shaft of the first gear 203. The guide groove opened on the side wall of the inner cavity of the base 301 and the protrusion at the bottom of the reciprocating rack 307 can limit the reciprocating rack 307 when it moves, so that it can move in a straight line.

[0063] When the reciprocating rack 307 moves laterally, it will pull the first scraper 311 to move synchronously. Since the second gear 204 rotates clockwise, the dust on the contact surface between the second gear 204 and the base 301 will be scraped off to the upper surface of the first scraper 311. The upper surface of the first scraper 311 is in contact with the second scraper 314, so the dust on the upper part of the first scraper 311 will be scraped off during the movement of the first scraper 311, thereby improving the cleanliness of the rotating shaft of the second gear 204 during the next operation.

[0064] Since the collecting box 313, the filter box 312 and the second scraper 314 are on the same vertical plane, when the second scraper 314 scrapes the mixture of dust and lubricating oil on the first scraper 311, it will fall to the filter box 312. At the same time, since there are multiple groups of small holes at the bottom of the filter box 312, the lubricating oil will be filtered into the collecting box 313, thereby reducing the consumption of lubricating oil.

[0065] By fixing the piston cylinder 401 on the upper part of the base 301 , the lubricating oil can be applied between the rotating shaft and the base 301 by utilizing the fluidity of the lubricating oil and the rotation of the rotating shaft of the winding drum 205 .

[0066] Since the first scraper 311 will abut against the side of the push-pull rod 405 during movement, it will synchronously pull the piston rod 404 fixedly connected to its top to move synchronously, and then pull the piston block 402 to move. At this time, the reciprocating spring 403 is in a compressed state. The setting of the reciprocating spring 403 facilitates the subsequent resetting of the piston block 402.

[0067] While the piston block 402 moves, the lubricating oil stored on the side of the piston block 402 close to the reciprocating spring 403 will flow out through the one-way valve between the piston block 402 and the oil outlet pipe 406. Since the piston block 402 and the oil inlet pipe 407 are also provided with a one-way valve, the lubricating oil will not flow back into the oil storage box 408 through the oil inlet pipe 407 at this time. At this time, the compression of the piston block 402 causes the lubricating oil to flow to the junction of the second gear 204 shaft and the base 301, so that the lubricating oil can form a lubricating film between the shaft and the support surface, effectively reducing the friction coefficient of the contact surface, thereby reducing the frictional resistance, and further reducing the wear of the shaft and its related components, thereby extending the service life of the equipment.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A blast furnace material level monitoring device, comprising a protective shell (1), a probe measuring device (2) is arranged inside the protective shell (1), the probe measuring device (2) comprises a workbench (201), the workbench (201) is fixedly connected to the inside of the protective shell (1), a driving source (202) is fixedly arranged on the upper part of the workbench (201), an output end of the driving source (202) is fixedly connected to a first gear (203), an outer ring surface of the first gear (203) is meshed with a second gear (204), the other end of the second gear (204) is fixedly connected to a winding drum (205), an outer ring surface of the winding drum (205) is sleeved with a steel cable (206), an outer ring surface of the steel cable (206) is slidably connected to a limiting wheel (207), a side surface of the limiting wheel (207) is fixedly connected to a weight (208), characterized in that; A plurality of fixed blocks (209) fixed by screws are arranged at one end of the steel cable (206) close to the weight (208), and a reciprocating cleaning mechanism (3) is arranged on the side of the probe measuring device (2); The reciprocating cleaning mechanism (3) comprises a base (301) fixedly arranged on the upper part of the workbench (201); a transverse "F"-shaped cavity is provided inside the base (301); a first scraper (311) is slidably arranged above the transverse inner cavity of the base (301); dust adhered to the rotating shaft portion of the second gear (204) can be scraped off by the transverse movement of the first scraper (311).

2. A blast furnace charge level monitoring device according to claim 1, characterized in that: The base (301) is fixedly connected above the workbench (201), a motor (302) is fixedly arranged on the inner cavity side wall of the base (301), and a main rotating gear (303) is fixedly connected to the output end of the motor (302).

3. The blast furnace charge level monitoring device according to claim 2 is characterized in that: The outer ring surface of the main rotating gear (303) is meshed with a first transmission gear (304), the middle of the first transmission gear (304) is fixedly connected with a first rotating shaft (305), the first rotating shaft (305) is rotatably connected to the side wall of the inner cavity of the base (301), the top of the first rotating shaft (305) is fixedly connected with a first sector gear (306), and the outer ring surface of the first sector gear (306) is meshed with a reciprocating rack (307).

4. The blast furnace charge level monitoring device according to claim 3 is characterized in that: The side of the reciprocating rack (307) is meshed with a second sector gear (308), the middle of the second sector gear (308) is fixedly connected to a second rotating shaft (310), the middle outer ring surface of the second rotating shaft (310) is fixedly connected to a second transmission gear (309), and the second transmission gear (309) is rotatably connected to the side wall of the inner cavity of the base (301).

5. The blast furnace charge level monitoring device according to claim 4 is characterized in that: One end of the reciprocating rack (307) away from the main rotating gear (303) is fixedly connected to a first scraper (311).

6. The blast furnace charge level monitoring device according to claim 5, characterized in that: A second scraper (314) is fixedly connected to the upper side of the inner cavity of the base (301) close to the first scraper (311), and the bottom of the second scraper (314) fits with the top of the first scraper (311).

7. The blast furnace charge level monitoring device according to claim 6 is characterized in that: A filter box (312) is slidably connected to the inner cavity side wall of the base (301), and a collection box (313) is slidably connected to the inner cavity side wall of the base (301); the filter box (312), the collection box (313) and the second scraper (314) are located on the same vertical plane.

8. The blast furnace charge level monitoring device according to claim 1 is characterized in that: A lubricating mechanism (4) for adding lubricating oil is arranged on the top of the reciprocating cleaning mechanism (3), and the lubricating mechanism (4) comprises a piston cylinder (401), the piston cylinder (401) penetrates and is fixedly connected to the upper part of the base (301), and a cavity is opened inside the piston cylinder (401).

9. The blast furnace charge level monitoring device according to claim 8, characterized in that: The piston cylinder (401) is slidably connected to a piston block (402) on the inner ring surface; a reciprocating spring (403) is fixedly connected to one side of the piston block (402); an end of the reciprocating spring (403) away from the piston block (402) is fixedly connected to a side of the piston cylinder (401) away from the piston block (402); a piston rod (404) is fixedly connected to the middle of a side of the piston block (402) close to the reciprocating spring (403); and a push-pull rod (405) is fixedly connected to one end of the piston rod (404) away from the piston block (402).

10. The blast furnace charge level monitoring device according to claim 9, characterized in that: An oil outlet pipe (406) is passed through and fixedly connected to the outer ring surface of the piston block (402); an oil inlet pipe (407) is passed through and fixedly connected to the outer ring surface of the piston block (402); an end of the oil inlet pipe (407) away from the piston cylinder (401) is passed through and fixedly connected to an oil storage box (408); the oil storage box (408) is fixedly connected above the middle of the base (301); a one-way valve is provided between the oil outlet pipe (406) and the piston block (402); and a one-way valve is provided between the oil inlet pipe (407) and the piston block (402).

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