Long shaft inner hole rust removal device

Abstract

The invention discloses a long shaft inner hole rust removal device which comprises a mounting frame, a long and thin shaft rail extending in the linear direction is arranged at the top of the mounting frame, a plurality of treatment mechanisms are arranged at the top of the mounting frame, and the multiple treatment mechanisms comprise a rust removal mechanism, a cleaning mechanism, a drying mechanism and an oil coating mechanism which are sequentially distributed on the long and thin shaft rail. The mounting frame is provided with movable transfer mechanisms used for transferring the slender shafts among the multiple processing mechanisms, and a clamping type transfer mechanism is arranged at the oiling mechanism; the shaft inner hole derusting operation, the shaft inner hole cleaning operation, the shaft inner hole and shaft surface drying operation and the shaft inner hole and shaft surface oiling operation are carried out through the derusting mechanism, the cleaning mechanism, the drying mechanism and the oiling mechanism in sequence, the shaft inner hole derusting operation and the maintenance operation on the slender shaft can be rapidly completed, and the working efficiency is high.

Description

Technical Field

[0001] This invention relates to the technical field of long shaft inner hole maintenance equipment, and more particularly to a long shaft inner hole rust removal device for rust removal and maintenance of the inner hole of slender shafts. Background Technology

[0002] In rail transit door systems (including passenger doors of subway, light rail, high-speed rail, etc.), the guide shaft plays the role of the motion hub and the core of force transmission, and is the mechanical joint that enables the smooth, precise and reliable movement of the door.

[0003] The guide shafts in door systems are truly slender shafts; for example, a guide shaft with an outer diameter of 40mm can reach a maximum length of 2200mm. Through comprehensive consideration of precision engineering, hollow guide shafts are typically used in rail transit door systems. For instance, a slender guide shaft with an outer diameter of 40mm has an inner bore diameter of 28mm. Plugs or blocks are used at both ends of the slender guide shaft to significantly reduce its weight, decrease the inertia of frequent door system starts and stops, thereby reducing the load and power consumption of the drive motor, improving door response speed and control accuracy, and reducing impact during door opening and stopping. Furthermore, this also saves on raw material costs.

[0004] However, even if both ends of the slender guide shaft are sealed with plugs or blocks, moisture can still seep into the hole during continuous operation, causing rust to form on the inner wall of the slender guide shaft. Therefore, rust removal maintenance is required for the inner hole of the slender shaft. Summary of the Invention

[0005] This application provides a rust removal device for the inner bore of a long shaft, which can quickly complete the rust removal and maintenance of the inner bore of a slender shaft with high work efficiency.

[0006] This application provides a long shaft inner hole rust removal device for rust removal and maintenance of the inner hole of a slender shaft. The long shaft inner hole rust removal device includes a mounting frame. The top of the mounting frame is provided with a slender shaft track extending in a straight line. The top of the mounting frame is provided with multiple processing mechanisms. The multiple processing mechanisms include a rust removal mechanism, a cleaning mechanism, a drying mechanism, and an oiling mechanism distributed sequentially along the slender shaft track. The mounting frame is provided with movable transfer mechanisms for transferring the slender shaft between the multiple processing mechanisms, and a clamping transfer mechanism is provided at the oiling mechanism. The rust removal mechanism includes two rust removal rods that are symmetrically and vertically distributed on both sides of the slender shaft track and can move closer or further apart relative to each other in a rotating state. The inner end of the rust removal rod is provided with a cylindrical grinding head in the same direction, so that it can extend into at least half of the inner hole of the slender shaft to remove rust. The cleaning mechanism includes a cleaning tube that can be vertically approached or moved away from the slender shaft track on one side, and the inner end of the cleaning tube is provided with a nozzle for extending into the inner hole of the slender shaft to spray cleaning liquid. The drying mechanism is used to dry the surface of the slender shaft; The oiling mechanism includes a rotating roller assembly, an oiling brush, and two oiling rods. The rotating roller assembly is vertically arranged in a clearance fit within the slender shaft track to rotatably support the slender shaft. The oiling brush moves directionally in a direction perpendicular to the slender shaft track to coat the slender shaft supported by the rotating roller assembly. The two oiling rods are symmetrically and vertically distributed on both sides of the slender shaft track, allowing them to be relatively close to or far apart. The inner end of each oiling rod is provided with an oiling cotton block, which extends to at least half the distance of the inner hole of the slender shaft to coat the inner wall.

[0007] In one possible implementation, the elongated shaft track has two parallel guide rails, and the elongated shaft track has opposing feed ends and discharge ends along the direction of movement of the elongated shaft. The guide rails have feed stops near the feed ends, and feed ramps are provided upstream of the feed stops. The feed ramps are symmetrically distributed on the inner sidewalls of the two guide rails, and the top of the feed ramps has a feed ramp surface protruding from the guide rails. The feed ramp surface gradually slopes downward from the feed end to the other end, and the end of the feed ramp surface near the discharge end is lower than the top of the feed stop.

[0008] In one possible implementation, the movable transfer mechanism includes a mechanism stop, a stationary inclined plate, a movable inclined plate, and a telescopic element. The mechanism stop is symmetrically distributed on the top of the two guide rails and faces the processing mechanism. The stationary inclined plates are symmetrically distributed on the inner sidewalls of the two guide rails, and the top of the stationary inclined plate has a first inclined surface protruding from the guide rail. The first inclined surface gradually slopes downward from one end near the feed end to the other end, and the end of the first inclined surface near the discharge end is lower than the top of the mechanism stop. The movable inclined plate is symmetrically distributed inside the stationary inclined plate and is connected to the telescopic end of the telescopic element via a connecting plate in a manner that allows it to be driven to move up and down in a directional manner. The telescopic element is installed in the mounting frame. The movable inclined plate has a relatively high feeding end near the feed end, and in the direction of movement of the slender shaft, the feeding end protrudes to the feed stop or the upstream of the adjacent mechanism stop. The protruding length in the horizontal direction is less than the outer diameter of the slender shaft and greater than the axial radius of the slender shaft.

[0009] In one possible implementation, the drying mechanism includes an air-drying mechanism and a primary drying mechanism. The air-drying mechanism is located upstream of the primary drying mechanism. The air-drying mechanism includes an air-drying frame disposed on one side of the elongated shaft track. The top of the air-drying frame is provided with a first motor and a first belt and a first guide rail arranged in parallel opposite to the elongated shaft track. The first motor is used to drive the first belt to rotate in a directional manner. The top of the first guide rail is provided with an air-drying seat in a sliding fit. The air-drying seat is connected to the first belt. The air-drying seat is equipped with an air gun, which is engaged with the inner hole of the elongated shaft. The primary drying mechanism includes a hot air blower, a circulating air duct, and a drying hood. The hot air blower is connected to the drying hood through the circulating air duct to form circulating hot air within the drying hood and the circulating air duct. The drying hood is symmetrically distributed perpendicularly to the elongated shaft track in the extending direction. The drying hood has moving channels on opposite side walls in the horizontal direction suitable for the elongated shaft to pass through. The bottom wall of the moving channel is provided with a guide rail groove suitable for installing the guide rail and an inclined plate groove suitable for setting the stationary inclined plate and the moving inclined plate.

[0010] In one possible implementation, the processing mechanism further includes a secondary drying mechanism located downstream of the oiling structure. The secondary drying mechanism has the same structure as the primary drying mechanism and is provided with secondary drying hoods that are symmetrically distributed perpendicularly to the elongated shaft track in the extending direction. The clamping transfer mechanism is used to transfer the elongated shaft at the oiling mechanism to the stationary inclined plate at the secondary drying mechanism in a clamping manner.

[0011] In one possible implementation, the processing mechanism further includes a detection mechanism located downstream of the secondary drying mechanism. The detection mechanism includes a fifth belt and a fifth motor for driving the fifth belt to move in a direction perpendicular to the elongated shaft track. The fifth belt is located directly above the elongated shaft track and is fixedly connected to an ultrasonic surface roughness tester for ultrasonically detecting the roughness of the inner hole of the elongated shaft.

[0012] In one possible implementation, the processing mechanism further includes a polishing mechanism located upstream of the rust removal mechanism. The polishing mechanism includes polishing frames symmetrically distributed on both sides of the slender shaft track. Polishing seats that can be relatively close to or away from the slender shaft track are mounted on the polishing frames. An eccentric seat is mounted on the top of the polishing seat. A servo motor is provided on the top of the eccentric seat. The rotating end of the servo motor drives the eccentric wheel inside the eccentric seat to rotate through the cooperation of a transmission wheel and a transmission belt. A polishing rod is provided on the eccentric wheel at the central axis position, facing the slender shaft track. A polishing head that is adapted to the inner hole of the slender shaft is provided on the inner end of the polishing rod.

[0013] In one possible implementation, the rust removal mechanism includes rust removal frames symmetrically distributed on both sides of the slender shaft track. The top of the rust removal frame is provided with a second base plate. The top of the second base plate is provided with a second motor, a second belt and a second guide rail arranged in parallel opposite to the slender shaft track. The second motor is used to drive the second belt to rotate in a directional manner. The top of the second guide rail is provided with a second motor base plate in a sliding fit. The top of the second motor base plate is provided with a second rotary motor. The second motor base plate is connected to the second belt. The rust removal rod is coaxially connected to the shaft of the second rotary motor.

[0014] In one possible implementation, the cleaning mechanism includes a cleaning frame disposed on one side of the elongated shaft track. The top of the cleaning frame is provided with a third motor and a third belt and a third guide rail that are arranged in parallel opposite to the elongated shaft track. The third motor is used to drive the third belt to rotate in a directional manner. The top of the third guide rail is provided with a cleaning seat in a sliding fit manner. The cleaning seat is connected to the third belt, and the cleaning pipe is disposed in the cleaning seat.

[0015] In one possible implementation, the clamping transfer mechanism includes a fourth motor and a fourth belt and a fourth guide rail arranged in parallel along the extension direction of the elongated shaft track. The fourth motor drives the fourth belt to rotate in a specific direction. The fourth guide rails are symmetrically distributed on both sides of the fourth belt, and a moving rail is vertically connected between the fourth guide rails. The two ends of the moving rails are provided with moving seats that slide with the fourth guide rails. A sliding plate is provided in the middle of the two moving rails. The sliding plate is fixedly connected to the fourth belt. A lifting cylinder is installed on the sliding plate. The telescopic end of the lifting cylinder at the bottom is symmetrically connected to a bidirectional telescopic cylinder on both sides of the elongated shaft track. The bidirectional telescopic cylinders are horizontally arranged, and clamping arms are symmetrically connected to the opposite telescopic ends of the bidirectional telescopic cylinders. The inner side of the clamping arm is provided with a clamping groove suitable for clamping the elongated shaft.

[0016] Beneficial effects: Compared with the prior art, the long shaft inner hole rust removal device provided in this application can perform rust removal, cleaning, drying and oiling treatment on the slender shaft in sequence by setting rust removal mechanism, cleaning mechanism, drying mechanism and oiling mechanism along the slender shaft track in sequence, so as to complete the rust removal of the inner hole of the slender shaft and the overall maintenance of the slender shaft in one go, with high work efficiency.

[0017] These and other objects, features and advantages of the present invention will become fully apparent from the following detailed description. Attached Figure Description

[0018] Figure 1 A schematic diagram of the rust removal device for the inner bore of the long shaft of this application is shown.

[0019] Figure 2A schematic diagram of the mobile transfer mechanism in this application is shown.

[0020] Figure 3 A schematic diagram of the rust removal mechanism in this application is shown.

[0021] Figure 4 This application shows Figure 3 A magnified structural diagram of part A in the middle.

[0022] Figure 5 A schematic diagram of the air-drying mechanism in this application is shown.

[0023] Figure 6 A schematic diagram of the drying mechanism in this application is shown.

[0024] Figure 7 A partial structural schematic diagram of the drying mechanism in this application is shown.

[0025] Figure 8 A schematic diagram of the testing organization in this application is shown.

[0026] Figure 9 A schematic diagram of the polishing mechanism in this application is shown.

[0027] Figure 10 A schematic diagram of the cleaning mechanism in this application is shown.

[0028] Figure 11 A schematic diagram of the clamping transfer mechanism in this application is shown.

[0029] Figure 12 This application shows Figure 11 A magnified structural diagram of part B.

[0030] Figure 13 A schematic diagram of the oiling mechanism in this application is shown.

[0031] Figure 14 An enlarged schematic diagram of the oiling mechanism in this application is shown. Detailed Implementation

[0032] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0033] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0034] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0035] refer to Figures 1 to 14 This application provides a rust removal device for the inner bore of a long shaft, used for rust removal and maintenance of the inner bore of a slender shaft 10. The slender shaft 10 mentioned here generally has a large length, such as a slender shaft with an outer diameter of 40 mm and a length of 2200 mm, and its inner bore diameter is 28 mm. It is particularly difficult to remove rust and maintain the part of the inner bore near the middle by conventional means.

[0036] The long shaft inner bore rust removal device includes a mounting frame 20. The top of the mounting frame 20 is provided with a slender shaft track 21 extending in a straight direction, and the top of the mounting frame 20 is also provided with multiple processing mechanisms. These processing mechanisms include a rust removal mechanism 30, a cleaning mechanism 40, a drying mechanism 50, and an oiling mechanism 60, sequentially distributed along the slender shaft track 21 (i.e., the extension path). The mounting frame 20 is also provided with movable transfer mechanisms 22 for transferring the slender shaft 10 between the multiple processing mechanisms, and a clamping transfer mechanism 23 is provided at the oiling mechanism 60. This allows for one-time inner bore rust removal and comprehensive overall maintenance of the slender shaft 10.

[0037] The rust removal mechanism 30 includes two rust removal rods 31 symmetrically and vertically distributed on both sides of the slender shaft track 21, which can rotate relative to each other or move away from each other. Simultaneously, the inner end of each rust removal rod 31 (i.e., the end closer to the slender shaft track) is coaxially provided with a cylindrical grinding head 311, which can extend into at least half the length of the inner hole of the slender shaft 10 for rust removal. In other words, the rust removal rods 31 on both sides, carrying the cylindrical grinding head 311, reciprocate into the inner hole of the slender shaft 10 for rust removal. The processing range of each cylindrical grinding head 311 is greater than half the length of the inner hole, thus allowing for thorough rust removal of the entire inner hole through the cooperation of the cylindrical grinding heads 311 at both ends.

[0038] The cleaning mechanism 40 includes a cleaning pipe 41 that can be perpendicularly approached or moved away from the elongated shaft track 21 on one side. The inner end of the cleaning pipe 41 is equipped with a nozzle for extending into the inner hole of the elongated shaft 10 to spray cleaning fluid. The cleaning fluid can be an environmentally friendly rust-preventive cleaning fluid. The outer end of the cleaning pipe 41 is connected to a high-pressure cleaning fluid source to continuously supply cleaning fluid to the nozzle. Furthermore, a cleaning fluid valve is provided on the supply pipe or the cleaning pipe 41 to control the timing of the cleaning fluid spray. During operation, the nozzle begins spraying cleaning fluid as it approaches the inner hole and continues spraying even after insertion, ensuring that the cleaning fluid cleans the entire inner hole. Additionally, a cleaning fluid baffle 411 is provided opposite the elongated shaft 10 to block the cleaning fluid. This baffle 411 can extend to the subsequent drying mechanism to block the cleaning fluid blown out by high-pressure air during the drying process.

[0039] The drying mechanism 50 is used to dry the surface of the slender shaft 10, including drying the inner hole of the slender shaft 10 and the entire outer surface of the slender shaft 10.

[0040] Combination Figure 13 , 14The oiling mechanism 60 includes a rotating roller group 61, an oiling brush 62, and two oiling rods 63. The rotating roller group 61 is vertically mounted in the slender shaft track 21 with a clearance fit, and is used to rotatably support the slender shaft 10, so that the slender shaft 10 rotates continuously on the rotating roller group 61. Two sets of rotating roller groups 61 are provided along the extension direction of the slender shaft 10. Each set has two staggered rotating rollers 611. The central axis of one set of rotating rollers 611 is fitted with a rotating gear 612 at the same position. At the same time, the two rotating gears 612 are fitted with the same transmission chain in a meshing manner. The bottom of the transmission chain meshes with a motor gear directly below the two rotating gears 612. The rotating motor drives the motor gear to rotate, which in turn drives the two rotating gears 612 to rotate in the same direction through the transmission chain. Finally, it drives the two rotating rollers 611 to rotate in the same direction. The other set of rotating rollers 611 is passively rotated as a passive roller, thus driving the slender shaft 10 on it to rotate continuously. The oiling brush 62 moves directionally in a direction perpendicular to the slender shaft track 21 to coat the surface of the slender shaft 10 supported by the rotating roller assembly 61. Since the slender shaft 10 is continuously rotating, the directionally moving oiling brush 62 can coat and maintain the entire outer surface of the slender shaft 10. The oiling brush 62 is connected to an oiling belt 622 via a base plate 621. The oiling belt 622 is driven by an oiling motor 623 to move directionally back and forth in a direction perpendicular to the slender shaft track 21. Specifically, the motor shaft of the oiling motor 623 is coaxially connected to an oiling pulley, and a driven pulley is correspondingly mounted on the other end of the mounting bracket 20. The oiling belt 622 is driven to rotate directionally by the cooperation of the oiling pulley and the driven pulley, thereby driving the oiling brush 62 to move directionally. Two oiling rods 63 are symmetrically and vertically distributed on both sides of the slender shaft track 21, allowing them to be positioned relatively close to or far apart. Each oiling rod 63 has an oiling pad 631 at its inner end, which extends at least halfway into the inner hole of the slender shaft to apply oil to the inner wall. Similar to the rust removal principle, the oiling area of ​​each oiling pad 631 is greater than half the length of the inner hole. The cooperation of the oiling pads 631 at both ends allows for thorough oiling and maintenance of the entire inner hole. Furthermore, the directional movement of the oiling rods 63 is similar to that of the oiling brush 62, and will not be described in detail here.

[0041] In one embodiment, combined Figure 2The slender shaft track 21 is provided with two parallel guide rails 211. The slender shaft track 21 has a feed end and a discharge end opposite to each other along the moving direction of the slender shaft 10. At the same time, the guide rail 211 is provided with a feed stop 212 near the feed end to block the slender shaft 10. The upstream of the feed stop 212 is provided with a feed ramp 213, which is symmetrically distributed on the inner sidewalls of the two guide rails 211. The top of the feed ramp 213 is provided with a feed ramp protruding from the guide rail 211. The feed ramp gradually slopes downward from the feed end to the other end, and the end of the feed ramp near the discharge end is lower than the top of the feed stop 212. The specific distance it is lower depends on the outer diameter of the slender shaft 10. As long as the feed stop 212 can block the slender shaft 10, the slender shaft 10 at the feed end will automatically move on the feed ramp until it abuts the upstream end of the feed end block 212. This facilitates the automatic transmission of the slender shaft 10 at the subsequent station and ensures the integrity of the automated processing.

[0042] More preferably, the movable transfer mechanism 22 includes a mechanism stop 221, a stationary inclined plate 222, a movable inclined plate 223, and a telescopic element 224. The mechanism stop 221 is symmetrically distributed on the top of the two guide rails 211, respectively facing the processing mechanism, serving to block the slender shaft 10, facilitating the processing of the slender shaft 10 by each processing mechanism. The stationary inclined plate 222 is symmetrically distributed on the inner sidewalls of the two guide rails 211, and the top of the stationary inclined plate 222 has a first inclined surface protruding from the guide rail 211. The first inclined surface gradually slopes downwards from one end near the feed end to the other end, and the end of the first inclined surface near the discharge end is lower than the top of the mechanism stop 221. The specific distance it is lower depends on the outer diameter of the slender shaft 10, as long as the mechanism stop 221 can block the slender shaft 10. The movable inclined plates 223 are symmetrically distributed inside the stationary inclined plates 222 and are connected to the telescopic end of the telescopic element 224 via a connecting plate 225 in a manner that allows them to be driven to move up and down in a directional manner. The telescopic element 224 is installed in the mounting bracket 20. The movable inclined plate 223 has a relatively high feeding end 2231 near the feed end. In the moving direction of the slender shaft 10, the feeding end 2231 protrudes to the feed stop 212 or upstream of the adjacent mechanism stop 221. At the same time, the protruding length of the feeding end 2231 in the horizontal direction is less than the outer diameter of the slender shaft 10 and greater than the axial radius of the slender shaft 10. In this way, the movable inclined plate 223 can lift a slender shaft 10 at the feed stop 212. Since the feeding end 2231 of the movable inclined plate 223 is relatively high, the lifted slender shaft 10 will automatically move to the stationary inclined plate 222, and then automatically move to the mechanism stop 221. This completes the automatic transfer of the slender shaft at the feed stop 212. Similarly, between two adjacent mechanism stops 221 in the direction of movement of the slender shaft 10, the feeding end 2231 lifts the slender shaft 10 blocked by the previous mechanism stop 221. The lifted slender shaft 10 automatically moves to the downstream stationary inclined plate 222, and then automatically moves to the next mechanism stop 221. This completes the automatic transfer of the slender shaft 10 between adjacent processing mechanisms.

[0043] During the process of transferring the slender shaft 10 by the clamping transfer mechanism 22, the slender shaft 10 will automatically move along the stationary inclined plate 222 into the rotating roller group 61.

[0044] In one embodiment, combined Figures 5 to 7The drying mechanism 50 includes an air-drying mechanism 51 and a primary drying mechanism 52, wherein the air-drying mechanism 51 is located upstream of the primary drying mechanism 52. The air-drying mechanism 51 includes an air-drying rack 511 disposed on one side of the elongated shaft track 21. The top of the air-drying rack 511 is provided with a first motor 512 and a first belt 513 and a first guide rail 514 arranged in parallel opposite to the elongated shaft track 21. The first motor 512 is used to drive the first belt 513 to rotate in a directional manner. The top of the first guide rail 514 is provided with an air-drying seat 515 in a sliding fit, and the air-drying seat 515 is connected to the first belt 513. In addition, the air-drying seat 515 is equipped with an air gun 516, and the air gun 516 cooperates with the inner hole of the elongated shaft 10. Thus, the air-drying seat 515 is driven to move towards or away from the elongated shaft track 21 by the cooperation of the first motor 512 and the first belt 513. The outer end of the air gun 516 is connected to the fan 517. High-pressure air from the outside is continuously sprayed onto the inner hole of the shaft through the air gun 516, mainly to dry the inner hole and discharge the cleaning fluid from the inner hole by spraying. The air gun 516 is equipped with a nozzle with Venturi effect (inhalation), which can reduce air consumption, increase airflow speed, and at the same time entrain surrounding air, reducing the impact force and danger of pure compressed air. The motor shaft of the first motor 512 is coaxially connected to the first pulley 5121. The other end of the drying rack 511 is equipped with a driven pulley that cooperates with the first pulley 5121. The cooperation between the first pulley 5121 and the driven pulley drives the first belt 513 to rotate in a specific direction, thereby driving the air gun 516 to move in a specific direction.

[0045] The primary drying mechanism 52 includes a hot air blower 521, a circulating air duct 522, and a drying hood 523. The hot air blower 521 is connected to the drying hood 523 through the circulating air duct 522 to form circulating hot air in the drying hood 523 and the circulating air duct 522. The drying hood 523 is vertically and symmetrically distributed relative to the elongated shaft track 21 in the extending direction. The drying hood 523 has a moving channel 501 on its horizontally opposite sidewalls, which is suitable for the elongated shaft 10 to pass through. The bottom wall of the moving channel 501 is provided with a guide rail groove suitable for installing the guide rail 211 and an inclined plate groove suitable for setting the stationary inclined plate 222 and the moving inclined plate 223. During the transfer of the slender shaft 10 by the movable transfer mechanism 22, the slender shaft 10 passes through the movable channel 501 and moves along the stationary inclined plate 222 to the mechanism stop 221. After it is in place, the slender shaft 10 is exactly at the central axis position of the drying hood 523. At this time, the hot air blower 521 is started, and the slender shaft 10 is dried by circulating hot air. The cleaning liquid adhering to the inner hole and outer surface of the slender shaft 10 is dried together. Although the movable channel 501 on the side wall of the drying hood 523 has a certain air leakage problem, it will not affect the drying effect of the slender shaft 10.

[0046] In one embodiment, the processing mechanism further includes a secondary drying mechanism 53, located downstream of the oiling structure 60. The secondary drying mechanism 53 has the same structure as the primary drying mechanism 52. Furthermore, for ease of description, the secondary drying mechanism 53 is provided with secondary drying hoods 531 that are symmetrically distributed perpendicularly to the elongated shaft track 21 in the extending direction. Clearly, the secondary drying hoods 531 and the aforementioned drying hood 523 have the same structure. The clamping transfer mechanism 23 is used to transfer the elongated shaft 10 at the oiling mechanism 60 to the stationary inclined plate 222 at the secondary drying mechanism 53 in a clamping manner.

[0047] In one embodiment, combined Figure 8 The processing mechanism further includes a detection mechanism 70. The detection mechanism 70 is located downstream of the secondary drying mechanism 53 and includes a fifth belt 71 and a fifth motor 72 for driving the fifth belt 71 to move directionally in a direction perpendicular to the elongated shaft track 21. A fifth pulley 73 is coaxially mounted on the motor shaft of the fifth motor 72, and a driven pulley is correspondingly mounted on the other side of the mounting bracket 20. The fifth belt 71 is rotated directionally through the cooperation of the fifth pulley 73 and the driven pulley. The fifth belt 71 is located directly above the elongated shaft track 21 and is fixedly connected to an ultrasonic surface roughness detector 74. This allows the ultrasonic surface roughness detector 74 to move directionally via the fifth belt 71, reciprocating and scanning the elongated shaft 10 after secondary drying to ultrasonically detect the roughness of the inner hole of the elongated shaft 10. The ultrasonic surface roughness test 74 utilizes the correlation between the scattering characteristics of ultrasonic waves when reflected on a surface and surface roughness. By analyzing the amplitude and frequency distribution of the reflected waves, it indirectly evaluates the roughness of the inner hole of the slender shaft 10. It has strong environmental adaptability, can be used online, and does not affect the continuity and automation level of the rust removal and maintenance of the slender shaft, ensuring work efficiency. At the same time, it can also effectively detect the rust removal accuracy of the inner hole of the slender shaft 10.

[0048] In one embodiment, combined Figure 9The processing mechanism also includes a polishing mechanism 80 located upstream of the rust removal mechanism 30. The polishing mechanism 80 includes polishing frames 81 symmetrically distributed on both sides of the elongated shaft track 21, and polishing seats 82 mounted on the polishing frames 81 that can be relatively close to or away from the elongated shaft track 21. Specifically, a polishing motor 83, a polishing guide rail 84, and a polishing lead screw 85 are mounted on the polishing frame 81. The polishing motor 83 drives the polishing lead screw 85 to rotate in a specific direction. The polishing seat 82 is threadedly fitted onto the polishing lead screw 85 via a lead screw slider 86 and slides against the polishing guide rail 84. An eccentric seat 87 is mounted on the top of the polishing seat 82. The top of the eccentric seat 87 is equipped with a servo motor 88. The rotating end of the servo motor 88 drives the eccentric wheel inside the eccentric seat 87 to rotate via a transmission wheel 881 and a transmission belt 882. Simultaneously, a polishing rod 89 is positioned on the central axis of the eccentric wheel, directly opposite the slender shaft track 21. The inner end of the polishing rod 89 is equipped with a polishing head 891 that matches the inner hole of the slender shaft 10. This head is used for eccentric polishing of both ends of the inner hole of the slender shaft 10, not only removing rust but also further polishing both ends of the inner hole, making it more convenient to use. The eccentricity of the polishing head 891 is 0.5-0.6 times the difference between the outer diameter of the polishing head 891 and the inner diameter of the slender shaft 10.

[0049] In one embodiment, combined Figure 3 The rust removal mechanism 30 includes rust removal frames 32 symmetrically distributed on both sides of the elongated shaft track 21. A second seat plate 33 is provided on the top of each rust removal frame 32. A second motor 34, a second belt 35, and a second guide rail 36 are provided on the top of the second seat plate 33, facing the elongated shaft track 21 and arranged side-by-side. The second motor 34 drives the second belt 35 to rotate in a specific direction. Specifically, a second pulley 341 is coaxially mounted on the motor shaft of the second motor 34, and a driven pulley 342 is correspondingly mounted on the other end of the second seat plate 33. The second belt 35 is driven to rotate in a specific direction through the cooperation of the second pulley 341 and the driven pulley 342. The top of the second guide rail 36 is provided with a second motor base plate 37 in a sliding fit. The top of the second motor base plate 37 is provided with a second rotary motor 38, and the second motor base plate 37 is connected to the second belt 35. The rust removal rod 31 is coaxially connected to the shaft of the second rotary motor 38. The second rotary motors 38 at both ends drive the rust removal rods 31 at both ends to rotate rapidly. At the same time, the cooperation of the second motor 34 and the second belt 35 drives the second rotary motor 38 to move closer to or away from the slender shaft rail 21, thereby performing rust removal operations at both ends of the inner hole of the slender shaft 10.

[0050] In one embodiment, combined Figure 10The cleaning mechanism 40 includes a cleaning frame 42 disposed on one side of the elongated shaft track 21. The top of the cleaning frame 42 is equipped with a third motor 43 and a third belt 44 and a third guide rail 45 arranged parallel to and opposite the elongated shaft track 21. The third motor 43 drives the third belt 44 to rotate in a specific direction. Specifically, a third pulley 431 is coaxially mounted on the motor shaft of the third motor 43, and a driven pulley is correspondingly mounted on the other end of the cleaning frame 42. The cooperation between the third pulley 431 and the driven pulley drives the third belt 44 to move in a specific direction. A cleaning seat 46 is provided on the top of the third guide rail 45 in a sliding fit manner. The cleaning seat 46 is connected to the third belt 44, and the cleaning tube 41 is disposed within the cleaning seat 46. Thus, the reciprocating movement of the third belt 44 drives the cleaning seat 46 and the cleaning tube 41 to move in a specific direction to clean the inner hole of the elongated shaft 10.

[0051] In one embodiment, combined Figure 11 , 12The clamping transfer mechanism 23 includes a fourth motor 231 and a fourth belt 232 and a fourth guide rail 233 arranged side-by-side along the extension direction of the elongated shaft track 21. The fourth motor 231 drives the fourth belt 232 to rotate in a specific direction. Specifically, a fourth pulley is mounted on the motor shaft of the fourth motor 231, and a driven pulley is correspondingly mounted on the other end of the mounting bracket 20. The fourth belt 232 is rotated in a specific direction through the cooperation of the fourth pulley and the driven pulley. The fourth guide rails 233 are symmetrically distributed on both sides of the fourth belt 232, and a moving rail 234 is vertically connected between the fourth guide rails 233. The two ends of the moving rails 234 are provided with moving seats that slide in cooperation with the fourth guide rails 233. At the same time, a sliding plate 235 is provided in the middle of the two moving rails 234, and the sliding plate 235 is fixedly connected to the fourth belt 232. The fourth belt 232 drives the sliding plate 235 to reciprocate along the extension direction of the elongated shaft track 21. A lifting cylinder 236 is installed on the sliding plate 235. Simultaneously, the telescopic ends of the lifting cylinder 236 at the bottom are symmetrically connected to bidirectional telescopic cylinders 237 on both sides of the slender shaft track 21. This allows the lifting cylinder 236 to drive the two bidirectional telescopic cylinders 237 to move synchronously up and down. The bidirectional telescopic cylinders 237 are horizontally positioned, and their opposite telescopic ends are symmetrically connected to clamping arms 238. The inner side of each clamping arm 238 has a clamping groove suitable for clamping the slender shaft 10. Thus, the two bidirectional telescopic cylinders 237 clamp the slender shaft 10 at both ends. Therefore, the clamping transfer mechanism 23 can not only clamp the slender shaft 10 but also move in the vertical direction and horizontally in the same direction as the slender shaft track 21. Once in position, the clamping arms 238 release the slender shaft 10 onto the stationary inclined plate 222, and the slender shaft 10 automatically transfers to the next workstation. This ensures a high level of automation in the rust removal and maintenance of the slender shaft, guaranteeing work efficiency.

[0052] It should be noted that the terms "first, second, third, fourth and fifth" used in this application are for descriptive purposes only, do not indicate any order, and should not be construed as indicating or implying relative importance. These terms can be interpreted as names.

[0053] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments; any variations or modifications can be made to the implementation of the present invention without departing from these principles.

Claims

1. A rust removal device for the inner bore of a long shaft, used for rust removal and maintenance of the inner bore of a slender shaft, characterized in that, The long shaft inner hole rust removal device includes a mounting frame, the top of which is provided with a slender shaft track extending in a straight direction. The top of the mounting frame is provided with multiple processing mechanisms, including a rust removal mechanism, a cleaning mechanism, a drying mechanism, and an oiling mechanism distributed sequentially along the slender shaft track. The mounting frame is provided with movable transfer mechanisms for transferring the slender shaft between the multiple processing mechanisms, and a clamping transfer mechanism is provided at the oiling mechanism. The rust removal mechanism includes two rust removal rods that are symmetrically and vertically distributed on both sides of the slender shaft track and can move closer or further apart relative to each other in a rotating state. The inner end of the rust removal rod is provided with a cylindrical grinding head in the same direction, so that it can extend into at least half of the inner hole of the slender shaft to remove rust. The cleaning mechanism includes a cleaning tube that can be vertically approached or moved away from the slender shaft track on one side, and the inner end of the cleaning tube is provided with a nozzle for extending into the inner hole of the slender shaft to spray cleaning liquid. The drying mechanism is used to dry the surface of the slender shaft; The oiling mechanism includes a rotating roller assembly, an oiling brush, and two oiling rods. The rotating roller assembly is vertically arranged in a clearance fit within the slender shaft track to rotatably support the slender shaft. The oiling brush moves directionally in a direction perpendicular to the slender shaft track to coat the slender shaft supported by the rotating roller assembly. The two oiling rods are symmetrically and vertically distributed on both sides of the slender shaft track, allowing them to be relatively close to or far apart. The inner end of each oiling rod is provided with an oiling cotton block, which extends to at least half the distance of the inner hole of the slender shaft to coat the inner wall.

2. The rust removal device for the inner bore of a long shaft as described in claim 1, characterized in that, The slender shaft track has two parallel guide rails. The slender shaft track has a feed end and a discharge end opposite to each other along the moving direction of the slender shaft. The guide rails have a feed stop near the feed end. A feed ramp is provided upstream of the feed stop. The feed ramps are symmetrically distributed on the inner sidewalls of the two guide rails. The top of the feed ramp has a feed inclined surface protruding from the guide rail. The feed inclined surface gradually slopes downward from the feed end to the other end, and the end of the feed inclined surface near the discharge end is lower than the top of the feed stop.

3. The rust removal device for the inner bore of a long shaft as described in claim 2, characterized in that, The movable transfer mechanism includes a mechanism stop, a stationary inclined plate, a movable inclined plate, and a telescopic element. The mechanism stop is symmetrically distributed on the top of the two guide rails and faces the processing mechanism. The stationary inclined plates are symmetrically distributed on the inner sidewalls of the two guide rails, and the top of the stationary inclined plate has a first inclined surface protruding from the guide rail. The first inclined surface gradually slopes downward from one end near the feed end to the other end, and the end of the first inclined surface near the discharge end is lower than the top of the mechanism stop. The movable inclined plates are symmetrically distributed on the inner side of the stationary inclined plates and are connected to the telescopic end of the telescopic element via a connecting plate in a drivable manner to move up and down in a directional direction. The telescopic element is installed in the mounting frame. The movable inclined plate has a relatively high feeding end near the feed end, and in the direction of movement of the slender shaft, the feeding end protrudes to the feed stop or the upstream of the adjacent mechanism stop. The protruding length in the horizontal direction is less than the outer diameter of the slender shaft and greater than the axial radius of the slender shaft.

4. The rust removal device for the inner bore of a long shaft as described in claim 3, characterized in that, The drying mechanism includes an air-drying mechanism and a primary drying mechanism. The air-drying mechanism is located upstream of the primary drying mechanism. The air-drying mechanism includes an air-drying frame disposed on one side of the slender shaft track. The top of the air-drying frame is provided with a first motor and a first belt and a first guide rail arranged in parallel opposite to the slender shaft track. The first motor is used to drive the first belt to rotate in a directional manner. The top of the first guide rail is provided with an air-drying seat in a sliding fit manner. The air-drying seat is connected to the first belt. The air-drying seat is equipped with an air gun, which is engaged with the inner hole of the slender shaft. The primary drying mechanism includes a hot air blower, a circulating air duct, and a drying hood. The hot air blower is connected to the drying hood through the circulating air duct to form circulating hot air within the drying hood and the circulating air duct. The drying hood is symmetrically distributed perpendicularly to the elongated shaft track in the extending direction. The drying hood has moving channels on opposite side walls in the horizontal direction suitable for the elongated shaft to pass through. The bottom wall of the moving channel is provided with a guide rail groove suitable for installing the guide rail and an inclined plate groove suitable for setting the stationary inclined plate and the moving inclined plate.

5. The rust removal device for the inner bore of a long shaft as described in claim 4, characterized in that, The processing mechanism also includes a secondary drying mechanism located downstream of the oiling structure. The secondary drying mechanism has the same structure as the primary drying mechanism and is provided with secondary drying hoods that are symmetrically distributed perpendicularly to the elongated shaft track in the extending direction. The clamping transfer mechanism is used to transfer the elongated shaft at the oiling mechanism to the stationary inclined plate at the secondary drying mechanism in a clamping manner.

6. The rust removal device for the inner hole of a long shaft as described in claim 5, characterized in that, The processing mechanism also includes a detection mechanism located downstream of the secondary drying mechanism. The detection mechanism includes a fifth belt and a fifth motor for driving the fifth belt to move in a direction perpendicular to the slender shaft track. The fifth belt is located directly above the slender shaft track and is fixedly connected to an ultrasonic surface roughness tester for ultrasonically detecting the roughness of the inner hole of the slender shaft.

7. The rust removal device for the inner bore of a long shaft as described in claim 2, characterized in that, The processing mechanism also includes a polishing mechanism located upstream of the rust removal mechanism. The polishing mechanism includes polishing frames symmetrically distributed on both sides of the slender shaft track. Polishing seats that can be relatively close to or away from the slender shaft track are installed on the polishing frames. An eccentric seat is installed on the top of the polishing seat. A servo motor is provided on the top of the eccentric seat. The rotating end of the servo motor drives the eccentric wheel inside the eccentric seat to rotate through the cooperation of a transmission wheel and a transmission belt. A polishing rod is provided on the eccentric wheel at the central axis position, facing the slender shaft track. A polishing head that is adapted to the inner hole of the slender shaft is provided on the inner end of the polishing rod.

8. The rust removal device for the inner bore of a long shaft as described in claim 2, characterized in that, The rust removal mechanism includes rust removal frames symmetrically distributed on both sides of the slender shaft track. The top of the rust removal frame is provided with a second base plate. The top of the second base plate is provided with a second motor, a second belt and a second guide rail arranged in parallel opposite to the slender shaft track. The second motor is used to drive the second belt to rotate in a directional manner. The top of the second guide rail is provided with a second motor base plate in a sliding fit. The top of the second motor base plate is provided with a second rotary motor. The second motor base plate is connected to the second belt. The rust removal rod is coaxially connected to the shaft of the second rotary motor.

9. The rust removal device for the inner bore of a long shaft as described in claim 2, characterized in that, The cleaning mechanism includes a cleaning frame located on one side of the slender shaft track. The top of the cleaning frame is equipped with a third motor and a third belt and a third guide rail that are parallel to and opposite the slender shaft track. The third motor is used to drive the third belt to rotate in a directional manner. The top of the third guide rail is equipped with a cleaning seat in a sliding fit manner. The cleaning seat is connected to the third belt, and the cleaning pipe is located inside the cleaning seat.

10. The rust removal device for the inner bore of a long shaft as described in claim 2, characterized in that, The clamping transfer mechanism includes a fourth motor and a fourth belt and a fourth guide rail arranged in parallel along the extension direction of the slender shaft track. The fourth motor drives the fourth belt to rotate in a specific direction. The fourth guide rails are symmetrically distributed on both sides of the fourth belt, and a moving rail is vertically connected between the fourth guide rails. The two ends of the moving rails are provided with moving seats that slide with the fourth guide rails. A sliding plate is provided in the middle of the two moving rails. The sliding plate is fixedly connected to the fourth belt. A lifting cylinder is installed on the sliding plate. The telescopic end of the lifting cylinder at the bottom is symmetrically connected to a bidirectional telescopic cylinder on both sides of the slender shaft track. The bidirectional telescopic cylinders are horizontally arranged, and clamping arms are symmetrically connected to the opposite telescopic ends of the bidirectional telescopic cylinders. The inner side of the clamping arm is provided with a clamping groove suitable for clamping the slender shaft.

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