Gear testing equipment

Abstract

The invention relates to the technical field of gear detection, and discloses a gear detection device, which solves the problem that the automatic magnetic particle flaw detection of meshing teeth of a large turntable bearing is insufficient in performing magnetic suspension covering spraying of a corresponding thickness on the meshing surface. A migration mechanism moves on the side surface of a turntable bearing body, and a control unit automatically magnetizes the detection area of ​​the turntable bearing body, wherein a square sliding rod on the inner side of a fitting component extends into a meshing groove and automatically adapts to the shape of the inner space of the meshing groove, so that multiple spraying components on one side are automatically distributed around the inner wall of the meshing groove, so that the sprayed magnetic suspension can be evenly sprayed on the inner wall of the meshing groove; and then, by setting the spray head of the spraying component to a rotating fan-shaped spray head, and vertically obliquely facing the inner wall of the meshing groove, and setting an elastic rope on the back side of the spray head to pull it, the nozzles of multiple fan-shaped spray heads are automatically aligned with the inner wall of the nearby meshing groove, so as to achieve precise spraying.

Description

Technical Field

[0001] The present invention relates to the technical field of gear detection, in particular to a gear detection device. Background Art

[0002] Gear testing includes gear flaw detection, which is a non-destructive testing technology used to detect whether there are cracks, pores and other defects inside the gear. This technology is crucial to ensure the quality and safety of the gear because it can help find potential damage before the gear is installed or put into use, thereby avoiding failures and accidents. This test includes ultrasonic flaw detection, X-ray flaw detection, magnetic particle flaw detection, etc.

[0003] Regarding magnetic particle flaw detection, this method is suitable for gears made of ferromagnetic materials. By applying a magnetic field on the gear surface, the magnetic particles will gather at surface or near-surface defects, thereby showing the location and shape of the defects and detecting surface or near-surface defects.

[0004] The existing publication number is CN116559278B, which discloses "a magnetic particle flaw detector for large gears of EMUs", including a frame, a left movable bracket, a right movable bracket, a longitudinal magnetization mechanism, a circumferential magnetization mechanism, a rolling chain plate mechanism, an anti-fall mechanism, a magnetic suspension spray recovery mechanism, and an ultraviolet lamp. It is mainly aimed at the defects of large gears that are inconvenient to transport workpieces, inconvenient to rotate workpieces, and inconvenient to observe, resulting in low flaw detection efficiency;

[0005] In the above scheme, for large gears, it is still necessary to transport the gears to the testing equipment to facilitate centralized flaw detection, but this is undoubtedly inconvenient for the continuous processing of large gears; for wind turbines, cranes, rotating workbenches, etc., the large turntable bearings to be used thereon, the existing detection means are mainly carried out by manual handheld magnetic particle flaw detection detectors, and there are also automatic magnetic particle flaw detectors that move on large workpieces, but they are not applicable when used on teeth with uneven detection surfaces. The difficulty in adapting is that when the detection area is flawed, the magnetic suspension needs to be sprayed to the entire detection area according to the corresponding thickness. If the spraying is too thick, it will accumulate in some areas and cover the defects; and too thin may cause the magnetic powder to be unable to fully adhere to the metal surface. Due to insufficient magnetic powder, the magnetic powder at the defect may not form an obvious mark, making the defect difficult to be identified. Therefore, in response to the automatic magnetic particle flaw detection of the teeth of large turntable bearings, covering the tooth surface with a magnetic suspension of corresponding thickness has become a problem to be solved at present. Summary of the invention

[0006] The purpose of the present invention is to provide a gear detection device, which solves the problem that automatic magnetic particle flaw detection of large turntable bearing meshing teeth is insufficient in performing magnetic suspension covering spraying of corresponding thickness on the meshing tooth surface.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gear detection device, comprising a magnetic particle flaw detector main unit placed at the center of a turntable bearing body, a meshing groove to be detected is provided on the side surface of the turntable bearing body, a pad for raising the turntable bearing body is provided on the lower surface of the turntable bearing body, and a migration mechanism for circular movement along the side surface of the turntable bearing body is provided on the migration mechanism, a control unit connected to the magnetic particle flaw detector main unit by electric wire is provided, the control unit comprises a pair of magnetic yokes respectively attached to the upper and lower surfaces of the meshing groove, a spraying mechanism corresponding to the position of the meshing groove is provided between the pair of magnetic yokes, a follow-up liquid supply barrel for inputting magnetic suspension to the spraying mechanism is provided on the upper surface of the migration mechanism, and a suspension cylinder for controlling the upward and downward movement of the spraying mechanism is provided in the migration mechanism;

[0008] The spraying mechanism includes a fitting component arranged on one side of the turntable bearing body for adapting to the shape of the meshing groove, the fitting component includes a storage box, a plurality of movably extended square sliding rods are horizontally arranged on one side of the storage box close to the meshing groove, a spraying component rotatably installed on one end of the square sliding rod close to the meshing groove, and a liquid separation box fixedly installed on the upper surface of the storage box, a plurality of liquid delivery pipes are connected to one side of the liquid separation box, which correspond to the plurality of spraying components one by one, the spraying component includes a fan-shaped nozzle for spraying obliquely downward, a pull ring is fixedly connected to the side of the fan-shaped nozzle away from the spraying, an elastic rope connecting the plurality of pull rings in series is provided on the side of the storage box close to the fan-shaped nozzle, and both ends of the elastic rope are fixedly connected to the surface of the storage box, and a shooting part for shooting the inner wall of the corresponding meshing groove is provided on the lower surface of the storage box;

[0009] A plurality of square slide bars extend to the inner wall of the meshing groove to form a plane shape of the inner wall of the meshing groove, so that the fan-shaped nozzles are distributed on one side of the inner wall of the meshing groove. Then, the elastic rope is controlled by the position where one end of the square slide bar extends, and the spray port of the fan-shaped nozzle is automatically pulled to point to the surface adjacent to the inner wall of the meshing groove.

[0010] Furthermore, the migration mechanism includes a semi-open cover arranged on the outer surface of the turntable bearing body, and the inner wall of the semi-open cover is provided with a crawler robot that fits to the side surface of the turntable bearing body, and the crawler robot is connected to the inner wall of the semi-open cover through a leaf spring, and the semi-open cover is vertically provided with a rolling driven roller near the inner side of the turntable bearing body, and the upper end of the driven roller's rotating shaft is fixedly connected to a V-shaped connecting piece, and the middle part of the V-shaped connecting piece is rotatably connected to the semi-open cover, and the upper surface of the semi-open cover is also provided with a hydraulic rod A for driving the V-shaped connecting piece to rotate, and the inner lower surface of the semi-open cover is also provided with a support wheel for rolling on the upper surface of the turntable bearing body.

[0011] Furthermore, a pair of the yokes are provided with multiple groups on the upper and lower sides of the meshing grooves, and connecting blocks are connected between the yokes in the same row. The two connecting blocks are respectively fixedly connected to the upper and lower surfaces inside the semi-open cover, and the control unit is respectively connected to the two connecting blocks through two data lines.

[0012] Furthermore, a push rod roller is rotatably installed on the upper surface or the lower surface of the storage box, one end of the push rod roller is connected to a torque motor, a fixed sleeve on the surface of the push rod roller is provided with a plurality of positioning rings corresponding to a plurality of square slide bars one by one, a fixed ring on the surface of the positioning ring is provided with a plurality of friction pads, the friction pads are in friction contact with the surface of the square slide bar, and the number of friction pads on the surfaces of the positioning rings arranged in sequence decreases in sequence in the direction from the center of the push rod roller to the outer end.

[0013] The cam is provided with a plurality of guide teeth on the lower surface of the guide groove, and a limiting component is provided in the storage box for limiting the square slide bar in one direction. The limiting component includes a limiting plate fixedly installed on the inner wall of the storage box and passing through the plurality of guide teeth at the same time. The limiting plate has an installation cavity provided in the limiting plate, and a series rod is rotatably installed in the installation cavity, and the arc surface of the series rod is protruded with a strip protrusion, and the surface of the series rod is rotatably installed with a plurality of elastic rotating sleeves, and the plurality of elastic rotating sleeves are rotatably installed with the plurality of square slide bars. The inner wall of the elastic rotating sleeve has a fan-shaped groove for the strip protrusion to rotate, and a coil spring is provided on the inner side of the elastic rotating sleeve and is connected to the surface of the series rod. A one-way buckle plate is fixedly connected to one side of the elastic rotating sleeve, and the elastic rotation sleeve elastically rotates to cause one end of the one-way buckle plate to be stuck on the one-way buckle tooth, and the one-way buckle plate cooperates with the one-way buckle tooth to unidirectionally limit the square slide bar to move into the storage box.

[0014] Furthermore, one side of the series rod is rotatably connected to the inner wall of the storage box, and one end of the series rod is fixedly connected to a sector gear. A rack meshing with the sector gear is provided on the lower side of the sector gear, and a hydraulic rod B is provided on one side of the rack to push it.

[0015] Furthermore, one side of the liquid separation box is also provided with a plurality of pipe management assemblies corresponding to the liquid delivery pipes one by one, and the pipe management assembly includes a guide slide column sliding on the lower surface of the liquid separation box, and the end of the guide slide column away from the spray assembly is fixedly connected to a rotating circle, and a positioning wheel is coaxially connected to the outer side of the rotating circle. The liquid delivery pipe is connected to the spray assembly after bypassing the surface of the positioning wheel, and multiple liquid delivery pipes are of the same length. A mounting seat for slidably mounting the guide slide column is provided on the lower surface of the liquid separation box, and a push spring A is provided on the surface of the guide slide column to push the guide slide column to slide away from the spray assembly.

[0016] Furthermore, the spray assembly includes a rotating metal sleeve arranged at one end of the square sliding rod, the fan-shaped nozzle is fixedly connected to the lower side of the rotating metal sleeve, the upper side of the rotating metal sleeve is rotatably connected to a docking metal elbow, and the docking metal elbow is fixed on the upper surface of the square sliding rod and connected to the liquid delivery pipe.

[0017] Furthermore, one end of each of the square slide bars is provided with a scraping assembly for scraping the surface of the meshing groove, and the scraping assembly includes a soft guide rail slide bar movable on one end of the square slide bar, and a rubber strip is provided on the side of the soft guide rail slide bar close to the inner wall of the meshing groove, and tension springs B are fixedly connected at both ends of the rubber strip, and the tension spring B tightens the rubber strip so that the rubber strip fits well on one end of the square slide bar, and a sliding fastener is fixedly provided on one end of the square slide bar, and the soft guide rail slide bar is slidably fastened to the sliding fastener, and a first convex peak, a second convex peak, and a third convex peak are provided on the side of the rubber strip close to the inner wall of the meshing groove from top to bottom, a horizontal groove is provided on the surface of the first convex peak, and a vertical groove is provided on the surface of the third convex peak.

[0018] Furthermore, a magnetic suspension replenishment barrel is provided on one side of the magnetic particle flaw detector main unit, and the magnetic suspension replenishment barrel is connected to the follow-up machine liquid supply barrel through a hose. One side of the follow-up machine liquid supply barrel is connected to a liquid distribution tube extending to the inner side of the migration mechanism, and one side of the liquid distribution box is connected to the liquid distribution tube through the liquid supply tube.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides a gear detection device, which moves on the side surface of the turntable bearing body through a migration mechanism, and the control unit automatically magnetizes the detection area of ​​the turntable bearing body, wherein the square sliding rod on the inner side of the fitting component extends into the meshing groove and automatically adapts to the shape of the inner space of the meshing groove, so that multiple spraying components on one side are automatically distributed around the inner wall of the meshing groove, so that the spraying magnetic suspension can be evenly sprayed on the inner wall of the meshing groove; and then the spray head of the spraying component is set to a rotating fan-shaped spray head, and vertically and obliquely faces the inner wall of the meshing groove , and an elastic rope is set on its back side to pull it, so that the nozzles of multiple fan-shaped nozzles are automatically aligned with the nearest inner wall of the groove to achieve precise spraying; a scraping component is set at one end of the square slide bar. Since one end of the square slide bar has been adapted to the shape of the inner wall of the groove, the scraping component is automatically supported to adapt to the shape of the inner wall of the groove. After the spraying component completes spraying and detection, the scraping component can also follow the matching component to reset and move to scrape off the magnetic suspension on the inner wall of the groove, saving time for later processing of the magnetic suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the assembly structure of the migration mechanism and the turntable bearing body of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the migration mechanism of the present invention;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of the migration mechanism of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the positional relationship between the yoke and the meshing groove of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the relationship between the spraying mechanism and the meshing groove position of the present invention;

[0027] Figure 7 It is a schematic diagram of the connection structure between the spraying mechanism and the fixing frame of the present invention;

[0028] Figure 8 It is a schematic diagram of the spraying mechanism structure of the present invention;

[0029] Fig. 9 It is a schematic diagram of the internal structure of the fitting component of the present invention;

[0030] Fig.10 For the present invention Fig. 9 A is an enlarged schematic diagram;

[0031] Fig.11 For the present invention Fig. 9 A magnified schematic diagram of B;

[0032] Fig.12 For the present invention Fig. 9 A magnified schematic diagram of middle C;

[0033] Fig.13 It is a schematic diagram of the structure of the management and control assembly of the present invention;

[0034] Fig.14 It is a schematic diagram of the cross-sectional structure of the spraying component and the scraping component of the present invention.

[0035] In the figure: 10, turntable bearing body; 101, meshing groove; 102, pad; 20, magnetic particle flaw detector host; 30, magnetic suspension supply barrel; 40, migration mechanism; 401, crawler robot; 4011, leaf spring; 402, driven roller; 4021, V-shaped connector; 4022, hydraulic rod A; 403, support wheel; 50, control unit; 501, yoke; 502, connection block; 60, follower liquid supply barrel ; 601, dispensing tube; 70, spraying mechanism; 701, fitting assembly; 7011, storage box; 7012, square slide bar; 70121, sliding fastener; 7013, one-way buckle; 7014, push rod roller; 70141, positioning ring; 70142, friction pad; 7015, elastic rope; 7016, limit component; 70161, limit plate; 70162, series rod; 70163, strip protrusion ; 70164, elastic rotating sleeve; 70165, fan-shaped groove; 70166, one-way buckle plate; 70167, fan-shaped gear; 70168, rack; 70169, hydraulic rod B; 702, liquid separation box; 7021, liquid supply pipe; 7022, liquid delivery pipe; 7023, pipe arrangement assembly; 70231, positioning wheel; 70232, rotating circle; 70233, guide slide column; 70234, push spring A; 70 3. Spraying assembly; 7031. Fan-shaped nozzle; 7032. Rotating metal sleeve; 7033. Pull ring; 7034. Connecting metal elbow; 704. Shooting unit; 705. Scraping assembly; 7051. Soft guide rail; 7052. Rubber strip; 70521. First convex peak; 70522. Second convex peak; 70523. Third convex peak; 7053. Tension spring B; 80. Suspension cylinder; 801. Fixing bracket. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0038] See also Figure 1-Figure 14A gear detection device includes a magnetic particle flaw detector host 20 placed at the center of a turntable bearing body 10, a meshing groove 101 to be detected is opened on the side surface of the turntable bearing body 10, and a pad 102 is provided on the lower surface of the turntable bearing body 10 to raise it, and also includes a migration mechanism 40 that moves in a ring along the side surface of the turntable bearing body 10, and a control unit 50 that is electrically fused and connected to the magnetic particle flaw detector host 20 is provided on the migration mechanism 40. The control unit 50 includes a pair of yokes 501 that are respectively attached to the upper and lower surfaces of the meshing groove 101, and a spraying mechanism 70 corresponding to the position of the meshing groove 101 is provided between the pair of yokes 501. A follow-up liquid supply barrel 60 for inputting magnetic suspension to the spraying mechanism 70 is provided on the upper surface of the migration mechanism 40, and a suspension cylinder 80 for controlling the upward and downward movement of the spraying mechanism 70 is provided in the migration mechanism 40;

[0039] The spraying mechanism 70 includes a fitting component 701 disposed on one side of the turntable bearing body 10 for adapting to the shape of the meshing groove 101, the fitting component 701 includes a storage box 7011, a side of the storage box 7011 close to the meshing groove 101 is horizontally arranged with a plurality of movable and extended square slide bars 7012, a spraying component 703 disposed on one end of the square slide bar 7012 close to the meshing groove 101 and rotatably installed, and a liquid separation box 702 disposed on the upper surface of the storage box 7011, and a plurality of liquid delivery pipes 703 are connected to one side of the liquid separation box 702. 022, which corresponds to a plurality of spraying components 703 one by one, the spraying components 703 include a fan-shaped spray head 7031 that sprays obliquely downward, a pull ring 7033 is fixedly connected to the side of the fan-shaped spray head 7031 away from the spraying, and a storage box 7011 is provided with an elastic rope 7015 that connects a plurality of pull rings 7033 in series on the side close to the fan-shaped spray head 7031, and both ends of the elastic rope 7015 are fixedly connected to the surface of the storage box 7011, and a shooting unit 704 for shooting the inner wall of the corresponding meshing groove 101 is provided on the lower surface of the storage box 7011;

[0040] A plurality of square slide bars 7012 extend to the inner wall of the meshing groove 101 to form a plane shape of the inner wall of the meshing groove 101, so that the fan-shaped nozzles 7031 are distributed on one side of the inner wall of the meshing groove 101, and then the elastic rope 7015 is driven by the position where one end of the square slide bar 7012 extends, and the spray outlet of the fan-shaped nozzle 7031 is automatically pulled to point to the surface near the inner wall of the meshing groove 101.

[0041] The above working principle and technical effect are as follows: by attaching the yoke 501 on the upper and lower sides of the meshing groove 101, a magnetic field is formed on the surface and near the surface of the meshing groove 101, and then the storage box 7011 is pushed to the horizontal side of the meshing groove 101 by the suspension cylinder 80, and then by controlling the multiple square slide bars 7012 to extend to the inner wall of the meshing groove 101, one end of the slide bars 7012 forms a plane shape of the inner wall of the meshing groove 101, and the multiple spraying components 703 are automatically distributed in the plane shape of the inner wall of the meshing groove 101, and the fan-shaped spray head 7031 nozzle is arranged obliquely, and the side away from the nozzle is pulled by the elastic rope 7015, which will make the nozzle of the fan-shaped spray head 7031 automatically align with the inner wall of the nearest meshing groove 101, and the multiple fan-shaped spray heads 7031 are automatically arranged in the plane shape of the inner wall of the meshing groove 101. It automatically aligns with the inner wall of the nearest meshing groove 101, and the fan-shaped coverage area of ​​the spray can completely and evenly cover the horizontal area of ​​the inner wall of the meshing groove 101 within the standard thickness. Then, the storage box 7011 is driven by the suspension cylinder 80 to move from the bottom of the meshing groove 101 to the top, so that the magnetic suspension can be completely covered on the inner wall of the meshing groove 101. The spraying process and the magnetization process of the magnetic yoke 501 on the surface of the meshing groove 101 can be carried out simultaneously. The shooting part 704 is provided with a flaw detection probe and a purple light lamp aimed at the corresponding inner wall of the meshing groove 101. After the inner wall of the meshing groove 101 is sprayed and magnetized with the magnetic suspension, the flaw detection probe automatically captures the corresponding image of the inner wall of the meshing groove 101 and uploads it to the terminal, which is convenient for manual unified inspection or inspection by the image processing system.

[0042] A plurality of spraying mechanisms 70 can be arranged on one side of the turntable bearing body 10, and a fixing frame 801 is provided to lift the plurality of spraying mechanisms 70. The plurality of spraying mechanisms 70 correspond one-to-one to a corresponding number of adjacent meshing grooves 101, and the lower end of the suspension cylinder 80 is fixedly connected to the upper surface of the fixing frame 801. Thus, a plurality of meshing grooves 101 can be inspected for flaws at the same time, thereby improving the detection efficiency.

[0043] In the previous embodiment: the migration mechanism 40 includes a semi-open cover arranged on the outer surface of the turntable bearing body 10, and the inner wall of the semi-open cover is provided with a tracked robot 401 that fits to the side surface of the turntable bearing body 10, and the tracked robot 401 is connected to the inner wall of the semi-open cover through a leaf spring 4011, and the semi-open cover is vertically provided with a rolling driven roller 402 near the inner side of the turntable bearing body 10, and the upper end of the rotating shaft of the driven roller 402 is fixedly connected with a V-shaped connecting piece 4021, and the middle part of the V-shaped connecting piece 4021 is rotatably connected to the semi-open cover, and the upper surface of the semi-open cover is also provided with a hydraulic rod A4022 for pushing the V-shaped connecting piece 4021 to rotate, and the inner lower surface of the semi-open cover is also provided with a support wheel 403 for rolling on the upper surface of the turntable bearing body 10.

[0044] The above working principle and technical effect are: by pulling the V-shaped connecting piece 4021 through the hydraulic rod A4022, it is convenient to pull the driven roller 402 to a horizontal state, so that it is convenient to install the migration mechanism 40 on the turntable bearing body 10, or remove it from the turntable bearing body 10. During installation, by placing the support wheel 403 on the upper surface of the turntable bearing body 10, it plays a role of supporting the semi-open cover, and then by starting the hydraulic rod A4022 to push the V-shaped connecting piece 4021 to cause the driven roller 40 2 moves to a vertical state. After the driven roller 402 moves to a vertical state, it will cooperate with the crawler part of the crawler robot 401 to clamp the two sides of the turntable bearing body 10. The leaf spring 4011 is in a compressed state. The upper and lower sides of the driven roller 402 are provided with limit rings corresponding to the upper and lower edges of the inner wall of the turntable bearing body 10. When the crawler robot 401 is started to move on the outer surface of the turntable bearing body 10, the semi-open cover can be driven to make a circular movement along the outer surface of the turntable bearing body 10.

[0045] Regarding the movement of the tracked robot 401, the arc distance between the corresponding points of two adjacent grooves 101 can be obtained by first using the radius of the turntable bearing body 10 and the number of teeth, and then the distance that the tracked robot 401 moves forward each time is controlled according to the number of settings of the spraying mechanism 70. In this way, only the first adjustment of the fitting component 701 and the corresponding groove 101 is required for adaptation; when the tracked robot 401 drives the semi-open cover to move to the next position at a fixed distance, the fitting component 701 can automatically correspond to the new groove 101.

[0046] In the previous embodiment: a pair of magnetic yokes 501 are arranged in multiple groups on the upper and lower sides of the meshing groove 101, and connecting blocks 502 are connected between the magnetic yokes 501 in the same row. The two connecting blocks 502 are respectively fixedly connected to the upper and lower surfaces of the semi-open cover, and the control unit 50 is respectively connected to the two connecting blocks 502 through two data lines.

[0047] The above working principle and technical effect are: through the control of the control unit 50, the yokes 501 on the upper and lower sides respectively generate corresponding magnetic fields, so that the part of the turntable bearing body 10 between them can be magnetized. The yoke 501 is at least three sections, and each section is rotatably connected. A retaining spring is arranged on the connecting shaft of the section closest to the surface of the meshing groove 101 and the adjacent section, and the end of the section in contact with the turntable bearing body 10 is arranged to be an arc surface. A tightening knob is arranged on the connecting shaft between the other sections. Before use, the knob is adjusted to tighten the joint connection, so that the section closest to the surface of the meshing groove 101 is inclined and pressed against the surface of the turntable bearing body 10, so that the semi-open cover drives the yoke 501 to move along the surface of the turntable bearing body 10, and the yoke 501 can maintain good contact with the surface of the turntable bearing body 10.

[0048] In the previous embodiment: a push rod roller 7014 is rotatably installed on the upper surface or the lower surface of the storage box 7011, and one end of the push rod roller 7014 is connected to a torque motor. A plurality of positioning rings 70141 corresponding to a plurality of square slide bars 7012 are fixedly sleeved on the surface of the push rod roller 7014, and a plurality of friction pads 70142 are fixedly arranged in a ring shape on the surface of the positioning ring 70141. The friction pads 70142 are in friction contact with the surface of the square slide bar 7012. In the direction from the center of the push rod roller 7014 to the outer end, the number of friction pads 70142 on the surface of the positioning rings 70141 arranged in sequence decreases in sequence.

[0049] Furthermore, when the push rod roller 7014 is driven to rotate by the torque motor, the rotating friction pad 70142 can push the square slide bar 7012 to slide out from the inside of the storage box 7011. When the positioning ring 70141 rotates one circle, the number of friction pads 70142 arranged on the surface determines the extension distance of the corresponding square slide bar 7012. Therefore, the number of friction pads 70142 on the surface of multiple positioning rings 70141 is arranged to decrease successively from the middle to the two sides, so that the middle parts of the multiple square slide bars 7012 can be extended to the two sides preferentially, and finally one end of the multiple square slide bars 7012 can contact the inner wall of the meshing groove 101 from the middle to the two sides in turn within the corresponding time, which avoids the multiple square slide bars 7012 being pushed out synchronously, resulting in long-term dynamic friction between the square slide bars 7012 and the friction pads 70142 on both sides.

[0050] In the previous embodiment, a guide groove is provided on the side surface of the square slide bar 7012, and a one-way buckle 7013 is provided on the lower surface of the guide groove. A limiting component 7016 for limiting the square slide bar 7012 in one direction is also provided in the storage box 7011. The limiting component 7016 includes a limiting plate 70161 fixedly installed on the inner wall of the storage box 7011 and passing through a plurality of guide grooves at the same time. An installation cavity is provided in the limiting plate 70161, and a series rod 70162 is rotatably installed in the installation cavity. The arc surface of the series rod 70162 is protruded with a strip protrusion 70163, and a plurality of elastic rotating sleeves 7016 are rotatably installed on the surface of the series rod 70162. 4. Multiple elastic rotating sleeves 70164 correspond to multiple square slide bars 7012 one by one. The inner wall of the elastic rotating sleeve 70164 is provided with a fan-shaped groove 70165 for the bar protrusion 70163 to rotate. The inner side of the elastic rotating sleeve 70164 is provided with a coil spring connected to the surface of the series rod 70162. One side of the elastic rotating sleeve 70164 is fixedly connected with a one-way buckle plate 70166. The elastic rotation of the elastic rotating sleeve 70164 causes one end of the one-way buckle plate 70166 to be stuck on the one-way buckle tooth 7013. The one-way buckle plate 70166 cooperates with the one-way buckle tooth 7013 to one-way limit the square slide bar 7012 to move into the storage box 7011.

[0051] Furthermore, when the square slide bar 7012 is pushed by the corresponding friction pad 70142, it moves outward, and through the cooperation of the one-way buckle plate 70166 and the one-way buckle tooth 7013, one end of the square slide bar 7012 is kept in the pushed position. The one-way buckle plate 70166 is pushed by the movable one-way buckle tooth 7013 to swing, causing the elastic rotating sleeve 70164 to reciprocate on the surface of the serial rod 70162, and the fan-shaped groove 70165 provides a relative activity space for the strip protrusion 70163.

[0052] In the previous embodiment: one side of the serial rod 70162 is rotatably connected to the inner wall of the storage box 7011, and one end thereof is fixedly connected to a sector gear 70167, a rack 70168 meshing with the sector gear 70167 is provided on the lower side, and a hydraulic rod B70169 for pushing the rack 70168 is provided on one side.

[0053] The above working principle and technical effect are: by controlling the hydraulic rod B70169 to drive the rack 70168 to move forward, it is convenient to control the rotation direction of the series rod 70162, and then control the position of the bar protrusion 70163 in the fan-shaped groove 70165. When the bar protrusion 70163 is in the fan-shaped groove 70165 near the middle, the elastic rotating sleeve 70164 can rotate at a certain angle, so that the one-way buckle plate 70166 limits the one-way buckle tooth 7013 in one direction. When the series rod 70162 rotates to cause the bar protrusion 70163 to be located in the fan-shaped groove 70165, the elastic rotating sleeve 70164 can rotate at a certain angle, so that the one-way buckle plate 70166 limits the one-way buckle tooth 7013 in one direction. The protrusion 70163 is pressed against the inner wall of the fan-shaped groove 70165 close to the one-way buckle plate 70166, so that the one-way buckle plate 70166 can be locked on the one-way buckle tooth 7013. The rotating series rod 70162 causes the bar protrusion 70163 to be pressed against the inner wall of the fan-shaped groove 70165 away from the one-way buckle plate 70166, so that the one-way buckle plate 70166 can be lifted from the one-way buckle tooth 7013, so that the square slide bar 7012 can be reset to the inner side of the storage box 7011.

[0054] In actual use, when adjusting the square slide bar 7012 to slide out of the storage box 7011, the control bar protrusion 70163 is located in the middle of the elastic rotating sleeve 70164, and the one-way buckle plate 70166 limits the one-way buckle tooth 7013 in one direction. After one end of the square slide bar 7012 comes into contact with the inner wall of the meshing groove 101, the position of the rotating bar protrusion 70163 prompts the one-way buckle plate 70166 to lock the position of the one-way buckle tooth 7013, so that the square slide bar 7012 can maintain the current extended state in subsequent use so as to adapt to other meshing grooves 101. After the overall flaw detection of the turntable bearing body 10 is completed, the one-way buckle plate 70166 is prompted to be lifted by controlling the bar protrusion 70163, and the push rod roller 7014 is rotated in the opposite direction, so as to recycle the square slide bar 7012 into the storage box 7011.

[0055] In the previous embodiment: a plurality of pipe arranging components 7023 corresponding to the liquid delivery pipes 7022 are further provided on one side of the liquid separation box 702, and the pipe arranging component 7023 includes a guide slide column 70233 sliding on the lower surface of the liquid separation box 702, and the end of the guide slide column 70233 away from the spray assembly 703 is fixedly connected with a rotating circle 70232, and a positioning wheel 70231 is coaxially connected to the outer side of the rotating circle 70232, and the liquid delivery pipe 7022 is connected to the spray assembly 703 after bypassing the surface of the positioning wheel 70231. The plurality of liquid delivery pipes 7022 are of the same length, and a mounting seat for slidingly mounting the guide slide column 70233 is provided on the lower surface of the liquid separation box 702, and a push spring A70234 is provided on the surface of the guide slide column 70233 for pushing the guide slide column 70233 to slide away from the spray assembly 703.

[0056] The above working principle and technical effect are: since the multiple storage boxes 7011 are extended to different lengths, the pulling degree of the liquid delivery tube 7022 is also different, which easily leads to different pressures of the magnetic suspension flowing to the spray component 703; by setting the length of the liquid delivery tube 7022 uniformly, and connecting it to the spray component 703 after turning it through the positioning wheel 70231, even if the multiple storage boxes 7011 are extended to different lengths, the states of the multiple liquid delivery tubes 7022 that are pulled are similar, that is, they have only passed one bend and have the same length, so the pressure of the magnetic suspension flowing to the spray component 703 is close to the same, further prompting the multiple fan-shaped nozzles 7031 to operate on the surface of the meshing groove 101 with nearly consistent spraying efficiency.

[0057] In the previous embodiment: the spraying assembly 703 includes a rotating metal sleeve 7032 arranged at one end of the square sliding rod 7012, the fan-shaped nozzle 7031 is fixedly connected to the lower side of the rotating metal sleeve 7032, and the upper side of the rotating metal sleeve 7032 is rotatably connected to a docking metal elbow 7034, and the docking metal elbow 7034 is fixed on the upper surface of the square sliding rod 7012 and connected to the liquid delivery pipe 7022.

[0058] Furthermore, by rotating the metal sleeve 7032 which is rotatably arranged at one end of the square slide bar 7012, the fan-shaped nozzle 7031 can be pulled by the elastic rope 7015 to rotate, and the magnetic suspension input by the liquid delivery pipe 7022 passes through the docking metal elbow 7034 and the rotating metal sleeve 7032 respectively, and then is sprayed out in a fan shape at the fan-shaped nozzle 7031.

[0059] In the previous embodiment, a plurality of square slide bars 7012 are provided at one end with a scraping assembly 705 for scraping the surface of the meshing groove 101. The scraping assembly 705 includes a soft guide rail slide bar 7051 movable at one end of the square slide bar 7012. A rubber strip 7052 is provided on one side of the soft guide rail slide bar 7051 close to the inner wall of the meshing groove 101. Tension springs B7053 are fixedly connected at both ends of the rubber strip 7052. The tension springs B7053 tighten the rubber strip 7052 so that the rubber strip 7052 52 fits on one end of the square slide bar 7012, a sliding fastener 70121 is fixed on one end of the square slide bar 7012, the soft guide rail slide bar 7051 is slidably engaged with the sliding fastener 70121, and the rubber strip 7052 is provided with a first convex peak 70521, a second convex peak 70522, and a third convex peak 70523 from top to bottom near the inner wall of the meshing groove 101, a horizontal groove is opened on the surface of the first convex peak 70521, and a vertical groove is opened on the surface of the third convex peak 70523.

[0060] The above working principle and technical effect are as follows: when the plurality of square slide bars 7012 extend, the order in which they sequentially contact the inner wall of the meshing groove 101 from the middle to the two sides will also push out the soft guide rail slide bar 7051 in this order, and make the rubber strip 7052 contact the inner wall of the meshing groove 101 from the middle to the two sides in this order. In this way, under the support of the square slide bar 7012 and the tightening state of the tension spring B7053, the rubber strip 7052 is in the same shape as the inner wall of the meshing groove 101 and is in close contact with the inner wall. In this way, after the magnetic suspension is sprayed on the inner wall of the meshing groove 101, the storage box 7011 is driven by the suspension cylinder 80 to reset from the top to the bottom, and the rubber strip 7052 in the same shape as the inner wall of the meshing groove 101 can scrape the inner wall of the meshing groove 101, thereby scraping off the magnetic suspension on the surface, eliminating the subsequent cleaning step of the surface of the meshing groove 101.

[0061] Regarding the arrangement of the first convex peak 70521, the second convex peak 70522, the third convex peak 70523 and their relative positions, the third convex peak 70523 is convenient for adapting to the shape of the inner corner of the meshing groove 101, while the second convex peak 70522 is used to adapt to the plane and the curved surface in the meshing groove 101. The magnetic suspension liquid on the inner wall of the meshing groove 101 can be scraped in a covering manner through the second convex peak 70522 and the third convex peak 70523. The first convex peak 70521 can adapt to the corner, plane and curved surface of the meshing groove 101 due to its thinner plane shape, but its scraping force is weak and thus it is arranged at the uppermost side, so as to scrape the places missed by the second convex peak 70522 and the third convex peak 70523.

[0062] It should be noted that the sliding connection between the flexible guide rail slide 7051 and one end of the square slide bar 7012 is not limited to the connection between the flexible guide rail slide 7051 and the sliding fastener 70121, and other flexible guide rail slides and their corresponding fasteners can be replaced in this position;

[0063] It should be noted that, when the scraping assembly 705 is not provided at one end of the square slide bar 7012 , a rubber pad needs to be provided at one end of the square slide bar 7012 to prevent it from scratching the surface of the meshing groove 101 .

[0064] In the previous embodiment: a magnetic suspension replenishment barrel 30 is also provided on one side of the magnetic particle flaw detector main unit 20, and the magnetic suspension replenishment barrel 30 is connected to the follow-up liquid supply barrel 60 through a hose, and one side of the follow-up liquid supply barrel 60 is connected to a liquid separation tube 601 extending to the inner side of the migration mechanism 40, and one side of the liquid separation box 702 is connected to the liquid separation tube 601 through a liquid supply tube 7021.

[0065] The technical effect of the above working principle is: an output control pump is provided inside the follow-up liquid supply barrel 60, which synchronously outputs the magnetic suspension to multiple liquid supply tubes 7021 through the liquid distribution tube 601, and then transports it to the corresponding connected liquid distribution boxes 702. Since the volume of the turntable bearing body 10 is large, a large amount of magnetic suspension is required. Through the setting of the magnetic suspension replenishment barrel 30, when the magnetic suspension in the follow-up liquid supply barrel 60 reaches the warning liquid level, it can be replenished in time and automatically through the magnetic suspension replenishment barrel 30 without stopping the machine, and the weight of the migration mechanism 40 load on the follow-up liquid supply barrel 60 can also be reduced accordingly.

[0066] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear inspection device, comprising a magnetic particle flaw detector main unit (20) placed at the center of a turntable bearing body (10), wherein a meshing groove (101) to be inspected is provided on a side surface of the turntable bearing body (10), and a pad (102) is provided on the lower surface of the turntable bearing body (10) to raise the turntable bearing body, characterized in that: It also includes a migration mechanism (40) that moves in an annular manner along the side surface of the turntable bearing body (10), the migration mechanism (40) is provided with a control unit (50) that is electrically fused to a main unit (20) of a magnetic particle flaw detector, the control unit (50) includes a pair of magnetic yokes (501) that respectively fit the upper and lower surfaces of the meshing groove (101), a spraying mechanism (70) corresponding to the position of the meshing groove (101) is provided between the pair of magnetic yokes (501), a follow-up liquid supply barrel (60) that inputs magnetic suspension to the spraying mechanism (70) is provided on the upper surface of the migration mechanism (40), and a suspension cylinder (80) that controls the upward and downward movement of the spraying mechanism (70) is provided in the migration mechanism (40); The spraying mechanism (70) comprises a fitting component (701) arranged on one side of the turntable bearing body (10) for adapting to the shape of the meshing groove (101), the fitting component (701) comprising a storage box (7011), a plurality of movable and extended square slide bars (7012) being horizontally arranged on one side of the storage box (7011) close to the meshing groove (101), a spraying component (703) being rotatably mounted on one end of the square slide bar (7012) close to the meshing groove (101), a liquid separation box (702) being fixedly mounted on the upper surface of the storage box (7011), a plurality of liquid delivery pipes (7022) being connected to one side of the liquid separation box (702), and a plurality of The liquid delivery pipe (7022) corresponds to the plurality of spraying assemblies (703) one by one, the spraying assemblies (703) comprising a fan-shaped spray head (7031) for spraying in an oblique downward direction, the fan-shaped spray head (7031) being fixedly connected to a pull ring (7033) on a side away from the spraying, the storage box (7011) being provided with an elastic rope (7015) for connecting the plurality of pull rings (7033) in series on a side close to the fan-shaped spray head (7031), the two ends of the elastic rope (7015) being fixedly connected to the surface of the storage box (7011), and the lower surface of the storage box (7011) being provided with a shooting portion (704) for shooting the inner wall of the corresponding meshing groove (101); A plurality of square slide bars (7012) extend to the inner wall of the meshing groove (101) to form a plane shape of the inner wall of the meshing groove (101), so that the fan-shaped nozzles (7031) are distributed on one side of the inner wall of the meshing groove (101), and then the elastic rope (7015) is pulled by the extended end of the square slide bar (7012), so that the liquid spraying port of the fan-shaped nozzle (7031) is directed to the surface adjacent to the inner wall of the meshing groove (101); A push rod roller (7014) is rotatably mounted on the upper surface or the lower surface of the storage box (7011), one end of the push rod roller (7014) is connected to a torque motor, a plurality of positioning rings (70141) corresponding to a plurality of square slide bars (7012) are fixedly sleeved on the surface of the push rod roller (7014), a plurality of friction pads (70142) are fixedly arranged in an annular shape on the surface of the positioning ring (70141), the friction pads (70142) are in frictional contact with the surface of the square slide bar (7012), and the positioning rings (70141) are arranged in sequence in a direction from the center of the push rod roller (7014) to the outer end. The number of friction pads (70142) on the surface of the plurality of positioning rings (70141) on the push rod roller (7014) is arranged to decrease in number from the middle to the sides, so that the square slide bar (7012) in the middle is extended before the slide bars on the sides, so that one end of the plurality of square slide bars (7012) contacts the inner wall of the meshing groove (101) from the middle to the sides in sequence within a corresponding time, thereby preventing the plurality of square slide bars (7012) from being pushed out synchronously, resulting in long-term dynamic friction between the square slide bars (7012) on both sides and the friction pads (70142).

2. A gear detection device according to claim 1, characterized in that: The migration mechanism (40) comprises a semi-open cover arranged on the outer surface of a turntable bearing body (10); the inner wall of the semi-open cover is provided with a crawler robot (401) which is attached to the outer surface of the turntable bearing body (10); the crawler robot (401) is connected to the inner wall of the semi-open cover via a leaf spring (4011); the semi-open cover is vertically provided with a rolling driven roller (402) close to the inner side of the turntable bearing body (10); the upper end of the rotating shaft of the driven roller (402) is fixedly connected with a V-shaped connecting piece (4021); the middle part of the V-shaped connecting piece (4021) is rotatably connected to the semi-open cover; the upper surface of the semi-open cover is also provided with a hydraulic rod A (4022) for driving the V-shaped connecting piece (4021) to rotate; the inner lower surface of the semi-open cover is also provided with a support wheel (403) for rolling on the upper surface of the turntable bearing body (10).

3. A gear detection device according to claim 2, characterized in that: A pair of the magnetic yokes (501) are provided in multiple groups on the upper and lower sides of the meshing groove (101); connection blocks (502) are connected between the magnetic yokes (501) in the same row; the two connection blocks (502) are respectively fixedly connected to the upper and lower surfaces inside the semi-open cover; and the control unit (50) is respectively connected to the two connection blocks (502) via two data cables.

4. A gear detection device according to claim 1, characterized in that: A guide groove is provided on the side surface of the square slide bar (7012), and a one-way buckle (7013) is provided on the lower surface of the guide groove. A limiting component (7016) for limiting the square slide bar (7012) in one direction is also provided in the storage box (7011). The limiting component (7016) includes a limiting plate (70161) fixedly installed on the inner wall of the storage box (7011) and passing through a plurality of the guide grooves at the same time. An installation cavity is provided in the limiting plate (70161), and a series rod (70162) is rotatably installed in the installation cavity. The arc surface of the series rod (70162) is protruded with a strip protrusion (70163). A plurality of elastic rotating sleeves (70164) are rotatably installed on the surface of the series rod (70162). The elastic rotating sleeve (70164) corresponds to the plurality of square slide bars (7012) one by one. The inner wall of the elastic rotating sleeve (70164) is provided with a fan-shaped groove (70165) for the strip protrusion (70163) to rotate. The inner side of the elastic rotating sleeve (70164) is provided with a coil spring connected to the surface of the series rod (70162). One side of the elastic rotating sleeve (70164) is fixedly connected with a one-way buckle plate (70166). The elastic rotation of the elastic rotating sleeve (70164 causes one end of the one-way buckle plate (70166) to be clamped on the one-way buckle tooth (7013). The one-way buckle plate (70166) cooperates with the one-way buckle tooth (7013) to limit the movement of the square slide bar (7012) into the storage box (7011) in one direction.

5. A gear detection device according to claim 4, characterized in that: One side of the serial rod (70162) is rotatably connected to the inner wall of the storage box (7011), and one end of the serial rod (70162) is fixedly connected to a sector gear (70167). A rack (70168) meshing with the sector gear (70167) is provided on the lower side of the sector gear (70167), and a hydraulic rod B (70169) for pushing the rack (70168) is provided on one side of the rack (70168).

6. A gear detection device according to claim 1, characterized in that: A plurality of pipe arrangement assemblies (7023) corresponding to the liquid delivery pipes (7022) are further provided on one side of the liquid separation box (702). The pipe arrangement assemblies (7023) include a guide column (70233) slidably arranged on the lower surface of the liquid separation box (702). One end of the guide column (70233) away from the spray assembly (703) is fixedly connected to a rotating circle (70232). The outer side of the rotating circle (70232) is coaxially rotatably connected to a positioning wheel (702 31), the liquid delivery pipe (7022) is connected to the spray assembly (703) after bypassing the surface of the positioning wheel (70231), and the plurality of liquid delivery pipes (7022) are of the same length. The lower surface of the liquid separation box (702) is provided with a mounting seat for slidably mounting the guide slide column (70233), and the surface of the guide slide column (70233) is provided with a push spring A (70234) for pushing the guide slide column (70233) to slide in a direction away from the spray assembly (703).

7. A gear detection device according to claim 1, characterized in that: The spraying assembly (703) comprises a rotating metal sleeve (7032) arranged at one end of a square sliding rod (7012); the fan-shaped nozzle (7031) is fixedly connected to the lower side of the rotating metal sleeve (7032); the upper side of the rotating metal sleeve (7032) is rotatably connected to a butt metal elbow (7034); the butt metal elbow (7034) is fixed to the upper surface of the square sliding rod (7012) and connected to the liquid delivery pipe (7022).

8. A gear detection device according to claim 1, characterized in that: A scraping assembly (705) for scraping the surface of the meshing groove (101) is also provided at one end of the plurality of square slide bars (7012), wherein the scraping assembly (705) comprises a soft guide rail slide bar (7051) movably connected to one end of the square slide bar (7012), wherein a rubber strip (7052) is provided on one side of the soft guide rail slide bar (7051) close to the inner wall of the meshing groove (101), wherein tension springs B (7053) are fixedly connected at both ends of the rubber strip (7052), wherein the tension springs B (7053) tighten the rubber strip (7052) so that the rubber strip (7052) ) fits on one end of the square slide bar (7012), a sliding fastener (70121) is fixedly provided on one end of the square slide bar (7012), the soft guide rail slide bar (7051) is slidably fastened with the sliding fastener (70121), and the rubber strip (7052) is provided with a first convex peak (70521), a second convex peak (70522), and a third convex peak (70523) from top to bottom on one side close to the inner wall of the meshing groove (101), a horizontal groove is opened on the surface of the first convex peak (70521), and a vertical groove is opened on the surface of the third convex peak (70523).

9. The gear detection device according to claim 1, characterized in that: A magnetic suspension liquid replenishment barrel (30) is also provided on one side of the magnetic particle flaw detector mainframe (20); the magnetic suspension liquid replenishment barrel (30) is connected to a follower liquid supply barrel (60) via a hose; one side of the follower liquid supply barrel (60) is connected to a liquid dispensing tube (601) extending to the inside of the migration mechanism (40); one side of the liquid dispensing box (702) is connected to the liquid dispensing tube (601) via a liquid supply tube (7021).

Images