Cleaning device

Abstract

The utility model discloses a cleaning device, which relates to the technical field of metal plate strip annealing and comprises a driving mechanism and a cleaning mechanism, the driving mechanism is connected with the cleaning mechanism and can drive the cleaning mechanism to move, and the cleaning mechanism can extend into an inner cover of an annealing furnace to clean the inner wall of the inner cover of the annealing furnace; wherein the driving mechanism comprises a rotating mechanism, a lifting mechanism and a telescopic mechanism which are connected, the rotating mechanism can drive the sweeping mechanism to rotate around the axis of the annealing furnace inner cover, the lifting mechanism can drive the sweeping mechanism to move up and down in the axial direction of the annealing furnace inner cover, and the telescopic mechanism can drive the sweeping mechanism to stretch out and draw back in the radial direction of the annealing furnace inner cover. The inner wall cleaning device can be suitable for cleaning the inner walls of the annealing furnace inner covers of different sizes, practicability is improved, manual cleaning is omitted, labor intensity of workers is reduced, cleaning efficiency is improved, and life health and safety of the workers are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of metal sheet and strip annealing technology, and in particular to a cleaning device. Background Technology

[0002] Currently, the common method for cleaning the inner wall of a bell-type annealing furnace is to use a bridge crane to lift the inner wall, while workers sweep it from inside. This method poses a significant safety risk and is highly prone to causing injuries or fatalities. Furthermore, the dust and noise generated while cleaning inside the furnace can cause irreversible damage to the workers' physical and mental health. In addition, manual cleaning of the inner wall of the annealing furnace is prone to incomplete dust removal and low efficiency.

[0003] Based on the aforementioned problems with manual cleaning, an inner wall cleaning device for the inner wall of a bell-type annealing furnace has emerged on the market. This cleaning device mainly includes a motor, a connecting rod, and a cleaning brush. The output shaft of the motor is connected to the cleaning brush through the connecting rod. The motor can drive the cleaning brush to rotate and clean the inner wall of the bell-type annealing furnace. However, the cleaning range of the cleaning brush is fixed and it can only be used for a single model of bell-type annealing furnace inner wall. It cannot clean bell-type annealing furnace inner walls of different diameters and heights.

[0004] Therefore, a cleaning device is provided to solve the aforementioned problems existing in the prior art. Utility Model Content

[0005] The purpose of this invention is to provide a cleaning device to solve the problems existing in the prior art. It is applicable to cleaning the inner walls of annealing furnace inner shrouds of various sizes, thereby improving practicality.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a cleaning device, including a driving mechanism and a cleaning mechanism. The driving mechanism is connected to the cleaning mechanism and can drive the cleaning mechanism to move. The cleaning mechanism can extend into the inner shroud of an annealing furnace to clean the inner wall of the annealing furnace inner shroud. The driving mechanism includes a rotating mechanism, a lifting mechanism, and a telescopic mechanism connected to each other. The rotating mechanism can drive the cleaning mechanism to rotate around the axis of the annealing furnace inner shroud. The lifting mechanism can drive the cleaning mechanism to move up and down along the axial direction of the annealing furnace inner shroud. The telescopic mechanism can drive the cleaning mechanism to extend and retract radially along the annealing furnace inner shroud.

[0008] Preferably, the lifting mechanism is connected to the rotating mechanism, the telescopic mechanism is connected to the lifting mechanism, and the sweeping mechanism is connected to the telescopic mechanism.

[0009] Preferably, the rotating mechanism includes a first motor, a first reducer, and a support rod. The output shaft of the first motor is connected to the input shaft of the first reducer. The output shaft of the first reducer is connected to one end of the support rod. The other end of the support rod is connected to the lifting mechanism. The first motor can drive the support rod and the lifting mechanism to rotate around the axis of the annealing furnace inner shroud.

[0010] Preferably, the first motor and the first reducer can be horizontally installed in the pit, and the support rod can be vertically installed in the pit; wherein, the output shaft of the first reducer is coaxially connected to a first bevel gear, and the end of the support rod near the first reducer is coaxially connected to a second bevel gear, and the first bevel gear and the second bevel gear are meshed together.

[0011] It also includes a cover plate for covering the top of the pit. The end of the support rod away from the first reducer passes through the cover plate and is fixedly connected to the lifting mechanism. A fixed plate is fixed on the cover plate. A thrust bearing is provided between the fixed plate and the lifting mechanism. The support rod passes through the fixed plate and the thrust bearing in sequence and is rotatably connected to the fixed plate through the first bearing.

[0012] Preferably, the lifting mechanism includes a lifting assembly, a base plate, and a top plate. The base plate is connected to the rotating mechanism. The bottom of the lifting assembly is connected to the base plate, and the top is connected to the top plate. The telescopic mechanism is fixed on the top plate. The lifting assembly can drive the top plate and the telescopic mechanism to move up and down along the axial direction of the annealing furnace inner shroud.

[0013] Preferably, the lifting assembly includes a second motor, a second reducer, and a screw jack. The bottom of the screw jack is fixed to the base plate, and the top flange of the worm gear of the screw jack is connected to the top plate. The base plate is provided with a sleeve hole for the worm gear of the screw jack to pass through. The output shaft of the second motor is connected to the input shaft of the second reducer, and the output shaft of the second reducer is connected to the input shaft of the screw jack.

[0014] It also includes a linkage assembly, which includes two links, the first ends of the two links being hinged together, and the second ends of the two links being hinged to the bottom plate and the top plate, respectively; wherein, multiple sets of linkage assemblies are provided, and the multiple sets of linkage assemblies are evenly distributed along the circumference.

[0015] Preferably, the telescopic mechanism includes a hydraulic cylinder and a telescopic structure. The hydraulic cylinder is fixed to the upper surface of the top plate via a connecting plate, and the piston rod of the hydraulic cylinder is connected to the telescopic structure, which can drive the telescopic structure to extend and retract radially along the inner shroud of the annealing furnace. The cleaning mechanism is connected to the telescopic structure.

[0016] Preferably, the telescopic structure includes a primary telescopic body, a secondary telescopic body, and a tertiary telescopic body. The secondary telescopic body is slidably disposed within the primary telescopic body, and the tertiary telescopic body is slidably disposed within the secondary telescopic body. The end of the tertiary telescopic body is connected to the cleaning mechanism. The piston rod of the hydraulic cylinder passes through the primary telescopic body and the secondary telescopic body in sequence and is connected to the tertiary telescopic body.

[0017] The telescopic mechanism is provided in multiple sets, and the multiple sets of telescopic mechanisms are evenly distributed along the circumference.

[0018] Preferably, the cleaning mechanism includes a pneumatic motor, a cleaning roller, and a roller frame. The roller frame is connected to the telescopic mechanism. The two ends of the cleaning roller are rotatably mounted on the roller frame via a first rotating shaft and a second rotating shaft, respectively. The first rotating shaft and the second rotating shaft extend along the axial direction of the inner shroud of the annealing furnace, and the first rotating shaft is connected to the pneumatic motor.

[0019] Preferably, the cleaning mechanism further includes a proximity switch, which is disposed on the roller frame and used to sense the position of the inner shroud of the annealing furnace.

[0020] The present invention achieves the following technical advantages over the prior art:

[0021] The driving mechanism of this invention includes a rotating mechanism, a lifting mechanism, and a telescopic mechanism connected together. The rotating mechanism drives the cleaning mechanism to rotate around the axis of the annealing furnace inner cover, thereby cleaning dust circumferentially on the inner wall of the annealing furnace inner cover. The lifting mechanism drives the cleaning mechanism to move up and down along the axial direction of the annealing furnace inner cover, thereby cleaning dust at different heights along the axial direction of the inner wall of the annealing furnace inner cover. The telescopic mechanism drives the cleaning mechanism to extend and retract radially along the annealing furnace inner cover, making it suitable for cleaning the inner walls of annealing furnace inner covers with different inner diameters. Therefore, it can be used to clean the inner walls of annealing furnace inner covers of various sizes, improving practicality. Furthermore, this invention eliminates manual cleaning, reducing the labor intensity of workers, improving cleaning efficiency, and ensuring the health and safety of workers. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the cleaning device in an embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of the cleaning device in an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the rotating mechanism in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the fixed disk in an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the base plate in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the top plate structure in an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the installation of the telescopic mechanism in an embodiment of this utility model;

[0030] Figure 8 This is a schematic diagram of the cleaning mechanism in an embodiment of the present invention;

[0031] Figure 9 This is a cross-sectional view of the cleaning mechanism in an embodiment of this utility model;

[0032] Figure 10 This is a schematic diagram of the roller frame in an embodiment of the present invention.

[0033] In the diagram: 11-First motor; 12-First reducer; 13-First bevel gear; 14-Second bevel gear; 15-Support rod; 151-Support shaft; 152-Steel pipe; 16-Fixed disc; 161-Lower ring mounting groove; 162-First mounting groove; 163-Mating hole; 17-Thrust bearing; 18-First bearing; 21-Base plate; 211-Upper ring mounting groove; 212-Base plate boss; 213-Hinge seat; 214-Sleeve hole; 22-Connecting rod; 23-Top plate; 24-Second motor; 25-Second reducer; 26-Second coupling; 27-Screw jack; 31-Hydraulic cylinder; 32-Connecting plate; 33-Telescopic structure; 331-First-stage telescopic body; 332-Second-stage telescopic body; 333-Third-stage telescopic body; 41-Pneumatic motor; 42-Support plate; 43-First coupling; 44-Ultrasonic proximity switch; 45-Cleaning roller; 451-End cover; 452-Roller; 453-Nylon filament; 454-First rotating shaft; 455-Second rotating shaft; 46-Roller frame; 461-Shaft clip mounting groove; 462-Second mounting groove; 463-First mounting hole; 464-Second mounting hole; 47-Second bearing; 5-Cover plate; 51-Through hole. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The purpose of this invention is to provide a cleaning device to solve the problems existing in the prior art. It is applicable to cleaning the inner walls of annealing furnace inner shrouds of various sizes, thereby improving practicality.

[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Example 1

[0038] like Figures 1-10 As shown, this utility model provides a cleaning device, mainly including a driving mechanism and a cleaning mechanism. The driving mechanism is connected to the cleaning mechanism and can drive the cleaning mechanism to move. The cleaning mechanism can extend into the inner shroud of the annealing furnace to clean the inner wall of the annealing furnace inner shroud. The driving mechanism includes a rotating mechanism, a lifting mechanism, and a telescopic mechanism connected to each other. The rotating mechanism can drive the cleaning mechanism to rotate around the axis of the annealing furnace inner shroud. The lifting mechanism can drive the cleaning mechanism to move up and down along the axial direction of the annealing furnace inner shroud. The telescopic mechanism can drive the cleaning mechanism to extend and retract radially along the annealing furnace inner shroud.

[0039] In this embodiment, the driving mechanism includes a rotating mechanism, a lifting mechanism, and a telescopic mechanism connected together. The rotating mechanism drives the cleaning mechanism to rotate around the axis of the annealing furnace inner cover, thereby cleaning dust circumferentially on the inner wall of the annealing furnace inner cover. The lifting mechanism drives the cleaning mechanism to move up and down along the axial direction of the annealing furnace inner cover, thereby cleaning dust at different heights along the axial direction of the inner wall of the annealing furnace inner cover. The telescopic mechanism drives the cleaning mechanism to extend and retract radially along the inner wall of the annealing furnace inner cover, making it suitable for cleaning the inner walls of annealing furnace inner covers with different inner diameters. Therefore, it is applicable to cleaning the inner walls of annealing furnace inner covers of various sizes, improving practicality. Furthermore, this embodiment eliminates manual cleaning, reducing the labor intensity of workers, improving cleaning efficiency, and ensuring the health and safety of workers.

[0040] In a preferred embodiment, the lifting mechanism is connected to the rotating mechanism, the telescopic mechanism is connected to the lifting mechanism, and the cleaning mechanism is connected to the telescopic mechanism; alternatively, the rotating mechanism, the lifting mechanism, and the telescopic mechanism may be connected in other ways, such as the rotating mechanism being connected to the lifting mechanism and the telescopic mechanism being connected to the rotating mechanism.

[0041] In this embodiment, the rotating mechanism mainly includes a first motor 11, a first reducer 12, and a support rod 15. The output shaft of the first motor 11 is connected to the input shaft of the first reducer 12. The output shaft of the first reducer 12 is connected to one end of the support rod 15. The other end of the support rod 15 is connected to the lifting mechanism. The first motor 11 can drive the support rod 15 and the lifting mechanism to rotate around the axis of the annealing furnace inner cover. The axis of the support rod 15 is collinear with the axis of the annealing furnace inner cover.

[0042] In this embodiment, the first motor 11 and the first reducer 12 can be horizontally installed in the pit, and the support rod 15 can be vertically installed in the pit; wherein, the output shaft of the first reducer 12 is coaxially connected to a first bevel gear 13, and the end of the support rod 15 near the first reducer 12 is coaxially connected to a second bevel gear 14, and the first bevel gear 13 and the second bevel gear 14 are meshed together.

[0043] Specifically, the first motor 11 and the first reducer 12 are standard models, readily available in the market. The first motor 11 is fixed to the bottom of the pit using anchor bolts pre-embedded in the ground. The first motor 11 and the first reducer 12 are connected and fixed with bolts after being fitted with their own flanges. The output shaft of the first motor 11 and the input shaft of the first reducer 12 are connected by a coupling. The first reducer 12 is fixed to the same ground plane as the first motor 11 using anchor bolts pre-embedded in the ground. The output shaft of the first reducer 12 is connected to the first bevel gear 13 by a key. The first bevel gear 13 is meshed with the second bevel gear 14. The axes of the first bevel gear 13 and the second bevel gear 14 must be perpendicular. The first bevel gear 13 and the second bevel gear 14 are national standard parts.

[0044] Furthermore, the support rod 15 is mainly welded from a steel pipe 152 and a support shaft 151. The support shaft 151 is welded to the bottom end of the steel pipe 152, and the coaxiality of the two axes is less than or equal to ￠0.002. The second bevel gear 14 is connected to the bottom end of the support shaft 151 by welding, and the coaxiality of the second bevel gear 14 and the support rod 15 is less than or equal to ￠0.002. The coaxiality requirement ensures the stability of the rotating mechanism during rotation and reduces the shaking generated during rotation.

[0045] The system also includes a cover plate 5, which has a through hole 51 at its center. The top end of the steel pipe 152 passes through the through hole 51. The diameter of the through hole 51 is larger than the diameter of the steel pipe 152 to prevent friction between them. The cover plate 5 covers the upper part of the pit and is fixed to the upper surface of the pit's surrounding walls with anchor bolts. A fixing plate 16 is fixed on the cover plate 5. A thrust bearing 17 is provided between the fixing plate 16 and the lifting mechanism. The support rod 15 passes through the fixing plate 16 and the thrust bearing 17 in sequence and is rotatably connected to the fixing plate 16 through a first bearing 18. The fixing plate 16 is a ring shape cut from ordinary steel plate. A lower ring mounting groove 161 with a diameter of 595mm and a depth of 5mm, a first mounting groove 162 with a diameter of 150mm and a depth of 16mm, and a mating hole 163 with a diameter of 100mm are machined at the center of the fixing plate 16. The first bearing 18 is horizontally installed. In the first mounting groove 162, the thrust bearing 17 is horizontally installed in the lower ring mounting groove 161. The first bearing 18 and the thrust bearing 17 are installed in their respective grooves to prevent the bearings from shifting or falling off. The fixed plate 16 is installed on the cover plate 5 through the mating hole 163 through the end of the steel pipe 152 and is fixed with bolts for easy maintenance. The steel pipe 152 mates with the inner ring of the first bearing 18 in the first mounting groove 162. When the support rod 15 rotates, the first bearing 18 will rotate accordingly. The function of the first bearing 18 is to prevent friction between the support rod 15 and the fixed plate 16, thereby increasing the service life of the support rod 15 and the fixed plate 16.

[0046] Furthermore, it should be noted that the upper opening of the steel pipe 152 corresponds to the sleeve hole 214 on the bottom plate 21 of the lifting mechanism described below, and is used to allow the bottom of the worm gear of the screw jack 27 to extend into the steel pipe 152.

[0047] In this embodiment, the lifting mechanism mainly includes a lifting assembly, a base plate 21, and a top plate 23. The base plate 21 is connected to the steel pipe 152 of the rotating mechanism. The bottom of the lifting assembly is connected to the base plate 21, and the top is connected to the top plate 23. The telescopic mechanism is fixed on the top plate 23. The lifting assembly can drive the top plate 23 and the telescopic mechanism to move up and down along the axial direction of the inner shroud of the annealing furnace.

[0048] The base plate 21 is a cuboid made of ordinary steel plate. A base plate boss 212 with an outer diameter of 750 mm and a height of 20 mm is machined at the center of the bottom of the base plate 21. Then, an upper ring mounting groove 211 with a diameter of 595 mm and a depth of 5 mm is machined at the center of the base plate boss 212. The thrust bearing 17 is set between the lower ring mounting groove 161 and the upper ring mounting groove 211. Finally, a sleeve hole 214 is machined at the center of the base plate boss 212 and the base plate 21 for the worm gear of the screw jack 27 to pass through. The top plate 23 is also a cuboid made of ordinary steel plate.

[0049] In this embodiment, the lifting assembly mainly includes a second motor 24, a second reducer 25, and a screw jack 27. The bottom of the screw jack 27 is fixed to the sleeve hole 214 on the base plate 21. The top flange of the worm gear of the screw jack 27 is connected to the top plate 23, and the worm gear is rotatably connected to the top flange of the worm gear. The output shaft of the second motor 24 is connected to the input shaft of the second reducer 25, and the output shaft of the second reducer 25 is connected to the input shaft of the screw jack 27.

[0050] Specifically, after the worm gear of the screw jack 27 passes through the sleeve hole 214 and the steel pipe 152, the screw jack 27 is bolted to the top plate 21. The worm gear of the screw jack 27 is connected to the top plate 23 through the top flange of the worm gear, and the two are fixed with bolts. The input shaft of the screw jack 27 is connected to the output shaft of the second reducer 25 through the second coupling 26. The second reducer 25 is bolted to the top plate 21. The second motor 24 and the second reducer 25 are connected through their own flange and fixed with bolts and nuts. After the second motor 24 works, it drives the second reducer 25 and the input shaft of the screw jack 27 to rotate. The worm wheel of the screw jack 27 will rotate, and the worm gear will move up or down. Since the worm gear of the screw jack 27 is connected to the top plate 23, the worm gear will indirectly drive the top plate 23 to move up or down, thereby realizing the rising or falling movement of the telescopic mechanism and the cleaning mechanism. Among them, the second motor 24, the second reducer 25, and the second coupling 26 are standard parts and are easy to procure.

[0051] It should be further noted that other lifting components can be selected as needed, such as hydraulic rods or linear motors.

[0052] In this embodiment, the lifting mechanism further includes a linkage assembly, which includes two connecting rods 22. The first ends of the two connecting rods 22 are hinged together, and the second ends of the two connecting rods 22 are respectively hinged to the bottom plate 21 and the top plate 23. The linkage assembly is provided in multiple sets, and the multiple sets of the linkage assembly are evenly distributed along the circumference. As a preferred embodiment, the linkage assembly is provided in four sets.

[0053] Four hinge seats 213 are machined or installed on the top of the base plate 21. Specifically, two hinge seats 213 are machined or installed at a certain distance on each long side of the base plate 21. The side of the hinge seat 213 coincides with the long side of the base plate 21, and the bottom surface of the hinge seat 213 coincides with the top of the base plate 21. The hinge seats 213 on the two long sides of the base plate 21 are symmetrical. Similarly, four hinge seats 213 identical to those on the base plate 21 are machined or installed on the bottom of the top plate 23. Two hinge seats 213 are machined or installed at a certain distance on each long side of the top plate 23. The side of the hinge seat 213 coincides with the long side of the base plate 21, and the bottom surface of the hinge seat 213 coincides with the bottom of the top plate 23. The hinge seats 213 on the two long sides of the top plate 23 are symmetrical. In this configuration, the second ends of the two connecting rods 22 of the same connecting rod assembly are respectively hinged to the hinge seats 213 on the bottom plate 21 and the top plate 23. The bottom plate 21 and the top plate 23 have the same length. The connecting rods 22 ensure that the hinge seats 213 of the bottom plate 21 and the hinge seats 213 of the top plate 23 are in the same vertical direction.

[0054] In this embodiment, the connecting rod 22 is a rectangular steel plate processed from steel plate. Two hinge holes are machined on the front of the rectangular steel plate at a certain center distance for connecting adjacent connecting rods 22 and connecting rods 22 to hinge seats 213. Four connecting rods 22 are respectively connected to four hinge seats 213 on the base plate 21. The hinge holes at one end of the connecting rod 22 are bolted to the hinge seats 213 on the base plate 21, and nuts are installed to prevent the bolts from falling off. Four connecting rods 22 are respectively connected to four hinge seats 213 on the top plate 23. One end of the connecting rod 22 The hinge holes are bolted to the hinge seats 213 on the top plate 23, and nuts are installed to prevent the bolts from falling off. The hinge holes at the other end of the four connecting rods 22 connected to the bottom plate 21 and the hinge holes at the other end of the four connecting rods 22 connected to the top plate 23 are bolted to each other, and nuts are installed to prevent the bolts from falling off. After the eight connecting rods 22 are installed, the bottom plate 21 and the top plate 23 can move up and down in the same vertical direction, so that the end face of the bottom plate 21 and the end face of the top plate 23 always coincide. The connecting rods 22 ensure the stability of the lifting mechanism during the rising or falling process.

[0055] In this embodiment, the telescopic mechanism mainly includes a hydraulic cylinder 31 and a telescopic structure 33. The hydraulic cylinder 31 is fixed to the upper surface of the top plate 23 via a connecting plate 32, and the piston rod of the hydraulic cylinder 31 is connected to the telescopic structure 33, enabling the telescopic structure 33 to extend and retract radially along the inner shroud of the annealing furnace. The cleaning mechanism is connected to the telescopic structure 33. The hydraulic cylinder 31 is a standard hydraulic cylinder, readily available on the market. The connecting plate 32 is an L-shaped connecting plate bent from a rectangular or square steel plate. The telescopic structure 33 is mainly assembled from a primary telescopic body 331, a secondary telescopic body 332, and a tertiary telescopic body 333. The materials of the primary telescopic body 331, the secondary telescopic body 332, and the tertiary telescopic body 333 are... The structure is a square steel pipe. Specifically, a keyway is machined on one inner surface of the first-stage telescopic body 331, and a boss or key is machined or installed on the corresponding outer surface of the second-stage telescopic body 332. The boss or key slides within the keyway of the first-stage telescopic body 331. A keyway is machined on one inner surface of the second-stage telescopic body 332, and a boss or key is machined or installed on the corresponding outer surface of the third-stage telescopic body 333. The boss or key slides within the keyway of the second-stage telescopic body 332. The elongation of the telescopic structure 33 is less than the elongation of the piston rod of the hydraulic cylinder 31. The length of the keyways of the three telescopic bodies must be less than the length of the telescopic body. This design ensures that the telescopic structure 33 can stop elongating at its limit position, preventing the telescopic body from detaching.

[0056] In this embodiment, multiple sets of telescopic mechanisms can be provided, and the multiple sets of telescopic mechanisms are evenly distributed along the circumference. A cleaning mechanism can be connected to any set of telescopic mechanisms, so that multiple sets of cleaning mechanisms can be set to clean the inner wall of the annealing furnace inner cover, thereby improving the cleaning efficiency. As a preferred embodiment, two sets of telescopic mechanisms are provided, and the two sets of telescopic mechanisms are arranged in opposite directions.

[0057] Specifically, a connecting plate 32 is installed at the front and rear ends of each of the two sets of telescopic mechanisms' hydraulic cylinders 31, and they are connected by bolts. The assembly of the two hydraulic cylinders 31 and the connecting plate 32 is installed on the top plate 23 and fixed with bolts. During installation, it is ensured that the assembly is located in the middle of the top plate 23. The piston rods of the two hydraulic cylinders 31 extend in opposite directions, and the end faces of the piston rods of the two hydraulic cylinders 31 are a certain distance from the end face of the top plate 23, and are equal. The third-stage telescopic body 333 passes through the second-stage telescopic body 332. When passing through, it is ensured that the key strip or boss on the outside of the third-stage telescopic body 333 is in movable engagement with the keyway on the inner surface of the second-stage telescopic body 332. Then, the second-stage telescopic body 332 and the third-stage telescopic body 332 are connected. The 33-unit assembly passes through the primary telescopic body 331, ensuring that the key strip or boss on the outside of the secondary telescopic body 332 is in movable engagement with the keyway on the inner surface of the primary telescopic body 331. The piston rod of the hydraulic cylinder 31 passes through the telescopic structure 33 and connects to the tertiary telescopic body 333, which is fixed with a nut. The primary telescopic body 331 of the telescopic structure 33 is fixed to the top plate 23 by welding. The two sides of the primary telescopic body 331 coincide with the two sides of the connecting plate 32, and one end face of the primary telescopic body 331 coincides with one end face of the connecting plate 32. The extension and retraction of the piston rod of the hydraulic cylinder 31 can drive the telescopic structure 33 to perform telescopic movement, thereby cleaning the dust on the inner wall of the annealing furnace inner shroud of different inner diameters.

[0058] In this embodiment, the cleaning mechanism mainly includes a pneumatic motor 41, a cleaning roller 45, and a roller frame 46. The roller frame 46 is connected to the three-stage telescopic body 333 of the telescopic mechanism. The two ends of the cleaning roller 45 are respectively connected to a first rotating shaft 454 and a second rotating shaft 455. The first rotating shaft 454 and the second rotating shaft 455 are rotatably mounted on the roller frame 46 through a second bearing 47. The first rotating shaft 454 and the second rotating shaft 455 extend along the axial direction of the annealing furnace inner cover, and the first rotating shaft 454 is connected to the pneumatic motor 41 through a first coupling 43. The pneumatic motor 41 can drive the cleaning roller 45 to rotate, so as to clean the inner wall of the annealing furnace inner cover. Further, the cleaning mechanism also includes a proximity switch, which is disposed on the roller frame 46 and is used to sense the position of the annealing furnace inner cover. Preferably, the proximity switch is an ultrasonic proximity switch 44.

[0059] In this embodiment, the pneumatic motor 41, the first coupling 43, and the ultrasonic proximity switch 44 are commercially available models. The second bearing 47 is a national standard part. The roller frame 46 is a C-shaped frame made of ordinary steel plate. A second mounting groove 462 is machined on the upper and lower surfaces of the roller frame 46 for mounting the second bearing 47. The coaxiality of the two second mounting grooves 462 is less than or equal to ￠0.002. A shaft clip mounting groove 461 is machined on the outer surface of each of the two second mounting grooves 462. A first mounting hole 463 and a second mounting hole 464 are machined on the inner surface of each of the two second mounting grooves 462. The coaxiality of the two second mounting grooves 462, the two shaft clip mounting grooves 461, the first mounting hole 463, and the second mounting hole 464 is less than or equal to ￠0.002. The pneumatic motor 41 is fixed to the top surface of the roller frame 46 by a support plate 42, which is a rectangular steel plate made of ordinary steel plate.

[0060] In this embodiment, the cleaning roller 45 mainly includes end caps 451, roller 452, bristles, a first rotating shaft 454, a second rotating shaft 455, etc. Both ends of the roller 452 are provided with end caps 451, which are fixedly connected by bolts. The first rotating shaft and the second rotating shaft 455 are respectively connected to the end caps 451 at both ends. The side wall of the roller 452 is provided with bristles, which are preferably nylon filaments 453. Specifically, the nylon filaments 453 are fixed on a stainless steel strip to form a winding strip, and then this winding strip is wrapped around the circumference of the roller 452 to cover the circumference of the roller 452.

[0061] The end cap 451 is a circular steel plate processed from ordinary steel plate, the roller 452 is a cylinder bent from steel plate, and the first rotating shaft 454 and the second rotating shaft 455 are processed from round steel. A second bearing 47 is installed at each of the second mounting grooves 462 on the top and bottom of the roller frame 46. The first rotating shaft 454 is welded to the center of the surface without a boss on one end cap 451, with a coaxiality of less than or equal to ￠0.002. The second rotating shaft 455 is then welded to the center of the surface without a boss on the other end cap 451, with a coaxiality of less than or equal to ￠0.002. The assembly of the end cap 451 and the first rotating shaft 454 extends from the roller frame 46. Inside the roller frame 46, from bottom to top, the first rotating shaft 454 passes through the inner ring of the second bearing 47 installed in the second mounting groove 462, and through the first mounting hole 463 for transition fit. The assembly of the end cover 451 and the second rotating shaft 455 is installed from top to bottom inside the roller frame 46, allowing the second rotating shaft 455 to pass through the inner ring of the second bearing 47 installed in the second mounting groove 462, and through the second mounting hole 464 for transition fit. A shaft clip is installed in the shaft clip mounting groove 461 on the top and bottom of the roller frame 46 to prevent the bearing from moving. A dustproof ring is installed on the shaft clip mounting groove 461 to prevent dust from entering the bearing and increase the bearing's service life.

[0062] Two support plates 42 are welded on the top of the roller frame 46. The two support plates 42 are a certain distance apart and parallel, and the two support plates 42 are parallel to the two sides of the roller frame 46. A pneumatic motor 41 is installed on the two support plates 42. The output shaft of the pneumatic motor 41 is connected to the first rotating shaft 454 through a first coupling 43. The first coupling 43 is keyed to the output shaft of the pneumatic motor 41 and the first rotating shaft 454. An ultrasonic proximity switch 44 is installed on the inner side of the support plate 42. The front end of the ultrasonic proximity switch 44 is 5mm away from the upper front end of the roller frame 46 (the side of the upper end close to the inner cover of the annealing furnace) to protect the ultrasonic proximity switch 44. The detection distance of the ultrasonic proximity switch 44 is consistent with the length of the cleaning roller 45 that extends beyond the roller frame 46. When the ultrasonic proximity switch 44 detects the inner wall of the annealing furnace, the nylon filament 453 of the cleaning roller 45 comes into contact with the inner wall of the annealing furnace, thus achieving the purpose of cleaning.

[0063] The back of the roller frame 46 of the two sweeping mechanisms is connected to the two three-stage telescopic bodies 333 respectively through the connecting plate and fixed by welding. The combination of the lifting mechanism, telescopic mechanism and sweeping mechanism is assembled and connected to the upper ring of the thrust bearing 17 through the upper ring mounting groove 211 of the base plate 21, so that the sweeping device is assembled.

[0064] This utility model has an ingenious structural design, optimized manufacturing process, low manufacturing cost, small size and full functionality, and can fully meet the cleaning tasks of the inner wall of the bell-type annealing furnace of our company.

[0065] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A cleaning device, characterized by: The driving mechanism is connected with the cleaning mechanism and can drive the cleaning mechanism to move, the cleaning mechanism can extend into the inner cover of the annealing furnace to clean the inner wall of the inner cover of the annealing furnace, the driving mechanism comprises a rotating mechanism, a lifting mechanism and an extension mechanism which are connected, the rotating mechanism can drive the cleaning mechanism to rotate around the axis of the inner cover of the annealing furnace, the lifting mechanism can drive the cleaning mechanism to move up and down along the axial direction of the inner cover of the annealing furnace, and the extension mechanism can drive the cleaning mechanism to extend and retract along the radial direction of the inner cover of the annealing furnace.

2. The cleaning device of claim 1, wherein: The lifting mechanism is connected to the rotating mechanism, the extension mechanism is connected to the lifting mechanism, and the cleaning mechanism is connected to the extension mechanism.

3. The cleaning device of claim 2, wherein: The rotating mechanism comprises a first motor, a first speed reducer and a support rod, the output shaft of the first motor is connected to the input shaft of the first speed reducer, the output shaft of the first speed reducer is in transmission connection with one end of the support rod, the other end of the support rod is connected to the lifting mechanism, and the first motor can drive the support rod and the lifting mechanism to rotate around the axis of the inner cover of the annealing furnace.

4. The cleaning device of claim 3, wherein: The first motor and the first speed reducer can be horizontally arranged in a pit, and the support rod can be vertically arranged in the pit, the output shaft of the first speed reducer is coaxially connected with a first bevel gear, one end of the support rod close to the first speed reducer is coaxially connected with a second bevel gear, and the first bevel gear is in meshing connection with the second bevel gear. The cover plate is used for covering the top of the pit, one end of the support rod away from the first speed reducer penetrates through the cover plate and is fixedly connected with the lifting mechanism, a fixed disc is fixed on the cover plate, a thrust bearing is arranged between the fixed disc and the lifting mechanism, the support rod penetrates through the fixed disc and the thrust bearing in sequence and is rotationally connected with the fixed disc through a first bearing.

5. The cleaning device according to claim 2 or 4, characterized in that: The lifting mechanism comprises a lifting assembly, a bottom plate and a top plate, the bottom plate is connected with the rotating mechanism, the bottom of the lifting assembly is connected with the bottom plate, the top of the lifting assembly is connected with the top plate, the top plate is fixed with the extension mechanism, and the lifting assembly can drive the top plate and the extension mechanism to move up and down along the axial direction of the inner cover of the annealing furnace.

6. The cleaning device of claim 5, wherein: The lifting assembly comprises a second motor, a second speed reducer and a screw rod elevator, the bottom of the screw rod elevator is fixed on the bottom plate, the top flange of the worm of the screw rod elevator is connected with the top plate, a sleeve hole for the worm of the screw rod elevator to penetrate through is arranged on the bottom plate, the output shaft of the second motor is connected to the input shaft of the second speed reducer, and the output shaft of the second speed reducer is connected with the input shaft of the screw rod elevator. The connecting rod assembly comprises two connecting rods, the first ends of the two connecting rods are hingedly connected, and the second ends of the two connecting rods are hingedly connected with the bottom plate and the top plate respectively, a plurality of groups of the connecting rod assemblies are arranged, and the groups of the connecting rod assemblies are circumferentially distributed.

7. The cleaning device of claim 5, wherein: The telescopic mechanism comprises a hydraulic cylinder and a telescopic structure, the hydraulic cylinder is fixed to the upper surface of the top plate through a connecting plate, and the piston rod of the hydraulic cylinder is connected with the telescopic structure, so that the telescopic structure can be driven to extend and retract along the radial direction of the inner cover of the annealing furnace.

8. The cleaning device of claim 7, wherein: The telescopic structure comprises a first telescopic body, a second telescopic body and a third telescopic body, the second telescopic body is slidingly arranged in the first telescopic body, the third telescopic body is slidingly arranged in the second telescopic body, and the end of the third telescopic body is connected with the cleaning mechanism, the piston rod of the hydraulic cylinder passes through the first telescopic body and the second telescopic body in sequence and is connected with the third telescopic body. The telescopic mechanism is provided with multiple groups, and the multiple groups of telescopic mechanisms are evenly distributed along the circumference.

9. The cleaning device of claim 2, wherein: The cleaning mechanism comprises a pneumatic motor, a cleaning roller and a roller frame, the roller frame is connected with the telescopic mechanism, the two ends of the cleaning roller are rotatably installed on the roller frame through a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft extend along the axial direction of the inner cover of the annealing furnace, and the first rotating shaft is connected with the pneumatic motor.

10. The cleaning device of claim 9, wherein: The cleaning mechanism further comprises a proximity switch arranged on the roller frame and used for sensing the position of the inner cover of the annealing furnace.

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