A flaw detection tool for step gears

Abstract

The present invention relates to the technical field of step gear detection, and discloses a flaw detection tool for step gears, including a detection table, a side frame fixedly connected to the left side of the detection table, an adjustment mechanism installed on the left side of the side frame, and the adjustment mechanism including a servo motor and an adjustment screw sleeve. The flaw detection tool for step gears drives the active gear to rotate through a driving motor, and the rotation of the active gear drives the rotating gear ring to rotate, and the rotating gear ring slides on the surface of the guide plate through a circular slide groove, and the rotation of the rotating gear ring drives the step gear body to rotate, and the rotation of the step gear body drives the fixed cylinder to rotate, and the rotation of the fixed cylinder drives the step gear body to rotate, so as to achieve the function of accurate detection, and solve the problem that the existing flaw detection tool can only meet the flaw detection of the step gear in a stationary state, and cannot perform flaw detection on the step gear in a running state.

Description

Technical Field

[0001] The invention relates to the technical field of step gear detection, in particular to a flaw detection tool for step gears. Background Art

[0002] Gears refer to mechanical components with gears on the wheel rim that continuously mesh to transmit motion and power. Step gears can change the speed and are widely used in gearboxes.

[0003] Due to the limitation of the step gear in use, it will face a variety of situations during use, but not limited to the following one. More specifically, due to stress and other problems during use, the step gear will crack or break, so it is necessary to perform flaw detection on the step gear. However, the flaw detection tooling of the prior art can only meet the flaw detection of the step gear in a stationary state during use, and it cannot perform flaw detection on the step gear in a running state. In addition, there are limitations on the scope of flaw detection of the step gear, and it is impossible to perform a relatively comprehensive detection on the step gear, which affects the detection effect.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the flaw detection tooling on the market, and even if it can be solved, it needs to be solved through external devices, which cannot achieve the desired effect. Therefore, we proposed a flaw detection tooling for step gears to solve the above problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a flaw detection tool for step gears, comprising a detection table, a side frame is fixedly connected to the left side of the detection table, an adjustment mechanism is installed on the left side of the side frame, the adjustment mechanism comprises a servo motor and an adjustment screw sleeve, and the bottom of the adjustment screw sleeve is fixedly connected to the detection mechanism;

[0006] The detection mechanism includes an adjustment box, a top of one side of the inner wall of the adjustment box is fixedly connected to a push cylinder, the output end of the push cylinder is fixedly connected to a push column, the surface of the push column is movably connected to a movable plate, the bottom of the movable plate penetrates to the bottom of the adjustment box and is fixedly connected to a horizontal plate, the bottom of the horizontal plate is fixedly connected to a connecting block, and the bottom of the connecting block is fixedly connected to a detection probe;

[0007] A rotating mechanism is fixedly connected to the front side of the top of the detection platform, and the rotating mechanism includes a driving motor, an output end of the driving motor is fixedly connected to a driving gear, a back side of the driving gear is meshedly connected to a rotating gear ring, an inner cavity of the rotating gear ring is provided with a circular slide groove, and fixing mechanisms are installed on both sides of the top of the rotating gear ring, and the fixing mechanism includes a fixing cylinder, a rotating motor is fixedly connected to the top of the inner wall of the fixing cylinder, a polished rod is fixedly connected to the output end of the rotating motor, a step gear body is installed at the bottom of the surface of the polished rod, a positioning plate is installed at the top of the surface of the polished rod, connecting columns are fixedly connected to both sides of the top of the positioning plate, and a limiting baffle is fixedly connected to the top of the connecting column.

[0008] Preferably, the output end of the servo motor is fixedly connected to an adjusting screw, the surface of the adjusting screw is connected to the internal thread of the adjusting screw sleeve, the top of the adjusting screw sleeve is fixedly connected to a cross column, a limiting cross groove is opened at the center of the top of the inner wall of the side frame, and the top of the cross column passes through the limiting cross groove and is movably connected to the inside of the limiting cross groove.

[0009] Preferably, the left side of the servo motor is fixedly connected to a fixed bracket, the right side of the fixed bracket is fixedly connected to the left side of the side frame, the right side of the side frame is fixedly connected to a stop seat, and the right side of the adjusting screw is movably connected to the left side of the stop seat through a bearing.

[0010] Preferably, a connecting plate is fixedly connected to the top of the driving motor, a connecting seat is fixedly connected to the bottom of the connecting plate, and the bottom of the connecting seat is fixedly connected to the top of the detection platform.

[0011] Preferably, a vertical groove is provided at the top of the inner cavity of the movable plate, the interior of the vertical groove is movably connected to the surface of the push column, and a guide groove is provided at the bottom of the inner wall of the adjustment box, the interior of the guide groove is movably connected to the surface of the movable plate.

[0012] Preferably, a rotation groove is provided at the bottom of the inner cavity of the movable plate, and a fixed column is movably connected inside the rotation groove, and the front side and the back side of the fixed column are fixedly connected to the inner wall of the adjustment box.

[0013] Preferably, the bottom of the surface of the polished rod is fixedly connected to a support plate, the top of the support plate is movably connected to the bottom of the step gear body, the inner cavity of the polished rod is provided with a threaded groove, the inner cavity of the threaded groove is threadedly connected to a connecting stud, and the top of the connecting stud is fixedly connected to the bottom of the limit baffle.

[0014] Preferably, a connecting rod is fixedly connected to the bottom of the fixed cylinder, and the bottom of the connecting rod is fixedly connected to the top of the rotating gear ring.

[0015] Preferably, a support mechanism is installed on the top of the detection platform, and the support mechanism includes a fixed seat, a fixed ring is fixedly connected to the top of the surface of the fixed seat, a connecting rod is fixedly connected to the surface of the fixed ring, and a guide plate is fixedly connected to one side of the connecting rod.

[0016] Preferably, there are multiple connecting rods, and the connecting rods are distributed around the surface of the fixed ring. The surface of the guide plate is movably connected to the inside of the rotating gear ring through a circular groove, and the rotating gear ring slides on the surface of the guide plate.

[0017] Compared with the prior art, the present invention provides a flaw detection tool for step gears, which has the following beneficial effects:

[0018] 1. The flaw detection tooling of the step gear drives the driving gear to rotate through the driving motor, and the rotation of the driving gear drives the rotating gear ring to rotate, and the rotating gear ring slides on the surface of the guide plate through the circular slide groove, and the rotation of the rotating gear ring drives the step gear body to rotate, and the rotation of the step gear body drives the fixed cylinder to rotate, and the rotation of the fixed cylinder drives the step gear body to rotate, so as to achieve the function of accurate detection, solve the problem that the existing flaw detection tooling can only meet the flaw detection of the step gear in a stationary state, and it cannot perform flaw detection on the step gear in a running state, and there are also limitations on the scope of flaw detection of the step gear, and it is impossible to perform a relatively comprehensive detection on the step gear, thus affecting the detection effect.

[0019] 2. The flaw detection tooling of the step gear supports the bottom of the step gear body through the setting of the support plate. The setting of the threaded groove facilitates the connection of the connecting stud to the inside of the light rod, thereby facilitating the fixation of the step gear body. The setting of the vertical groove enables the push column to slide smoothly inside the movable plate, thereby facilitating the adjustment of the position of the movable plate. The setting of the guide groove reduces the friction between the movable plate and the adjustment box, thereby enabling the movable plate to rotate smoothly in the adjustment box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0022] Figure 2 It is a schematic diagram of the connection between the adjusting screw sleeve and the adjusting box structure of the present invention;

[0023] Figure 3 It is a connection schematic diagram of the rotating gear ring structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the connection between the rotating gear ring and the guide plate structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the connection between the polished rod and the step gear body structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the exploded connection of the polished rod, the limit baffle and the connecting stud structure of the present invention;

[0027] Figure 7 It is a front cross-sectional view of the fixed cylinder structure of the present invention;

[0028] Figure 8 It is a front cross-sectional view of the regulating box structure of the present invention;

[0029] Fig. 9 It is a connection schematic diagram of the movable plate structure of the present invention.

[0030] Among them: 1. Test table; 2. Rotating mechanism; 201. Driving motor; 202. Connecting seat; 203. Connecting plate; 204. Driving gear; 205. Rotating gear ring; 206. Circular slide; 3. Fixing mechanism; 301. Fixing cylinder; 302. Connecting support rod; 303. Step gear body; 304. Connecting column; 305. Limit baffle; 306. Polish rod; 307. Positioning plate; 308. Support plate; 309. Connecting stud; 3010. Threaded groove; 3011. Rotating motor; 4. Adjusting mechanism; 401. Servo motor; 4 02. Block seat; 403. Horizontal column; 404. Adjusting screw sleeve; 405. Adjusting screw; 406. Fixed bracket; 407. Limiting horizontal groove; 5. Detection mechanism; 501. Adjustment box; 502. Push cylinder; 503. Push column; 504. Movable plate; 505. Guide groove; 506. Detection probe; 507. Vertical groove; 508. Fixed column; 509. Connecting block; 5010. Horizontal plate; 5011. Rotating groove; 6. Support mechanism; 601. Fixed seat; 602. Fixed ring; 603. Connecting rod; 604. Guide plate; 7. Side frame. DETAILED DESCRIPTION

[0031] 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.

[0032] Embodiment 1

[0033] See also Figure 1 , 2, 8 and 9 are the first embodiment of the present invention, which provides a flaw detection tool for step gears, including a detection table 1, a side frame 7 is fixedly connected to the left side of the detection table 1, an adjustment mechanism 4 is installed on the left side of the side frame 7, the adjustment mechanism 4 includes a servo motor 401 and an adjustment screw sleeve 404, and the bottom of the adjustment screw sleeve 404 is fixedly connected to the detection mechanism 5;

[0034] The detection mechanism 5 includes an adjustment box 501, and a pushing cylinder 502 is fixedly connected to the top of one side of the inner wall of the adjustment box 501. The output end of the pushing cylinder 502 is fixedly connected to a pushing column 503. The surface of the pushing column 503 is movably connected to a movable plate 504. The bottom of the movable plate 504 penetrates to the bottom of the adjustment box 501 and is fixedly connected to a horizontal plate 5010. The bottom of the horizontal plate 5010 is fixedly connected to a connecting block 509, and the bottom of the connecting block 509 is fixedly connected to a detection probe 506.

[0035] Specifically, the output end of the servo motor 401 is fixedly connected with an adjusting screw 405, the surface of the adjusting screw 405 is connected with the internal thread of the adjusting screw sleeve 404, the top of the adjusting screw sleeve 404 is fixedly connected with a cross column 403, and a limiting cross groove 407 is provided at the center of the top of the inner wall of the side frame 7. The top of the cross column 403 passes through the limiting cross groove 407 and is movably connected with the inside of the limiting cross groove 407. Through the setting of the limiting cross groove 407, the cross column 403 can slide smoothly inside the side frame 7, and further guide the moving position of the adjusting screw sleeve 404.

[0036] Specifically, the left side of the servo motor 401 is fixedly connected to a fixed bracket 406, the right side of the fixed bracket 406 is fixedly connected to the left side of the side frame 7, the right side of the side frame 7 is fixedly connected to a stop seat 402, and the right side of the adjusting screw 405 is movably connected to the left side of the stop seat 402 through a bearing. The setting of the fixed bracket 406 improves the stability of the servo motor 401 during operation and prevents the servo motor 401 from becoming unstable. At the same time, the setting of the stop seat 402 supports the position of the adjusting screw 405, thereby ensuring the stability of the adjusting screw 405 during rotation.

[0037] Specifically, a vertical groove 507 is provided at the top of the inner cavity of the movable plate 504, and the interior of the vertical groove 507 is movably connected to the surface of the push column 503. A guide groove 505 is provided at the bottom of the inner wall of the adjustment box 501, and the interior of the guide groove 505 is movably connected to the surface of the movable plate 504. Through the setting of the vertical groove 507, the push column 503 can slide smoothly inside the movable plate 504, and then the position of the movable plate 504 can be adjusted conveniently. Through the setting of the guide groove 505, the friction between the movable plate 504 and the adjustment box 501 is reduced, and then the movable plate 504 can rotate smoothly in the adjustment box 501.

[0038] Specifically, a rotating groove 5011 is opened at the bottom of the inner cavity of the movable plate 504, and the internal movably connected with a fixed column 508, the front side and the back side of the fixed column 508 are fixedly connected to the inner wall of the adjustment box 501, and the position of the movable plate 504 is supported by the setting of the fixed column 508, so that the movable plate 504 can rotate smoothly, and it is further convenient to adjust the position of the detection probe 506.

[0039] The specific implementation of this embodiment is as follows: the adjusting screw 405 is driven to rotate by the servo motor 401, the adjusting screw sleeve 404 is moved by the rotation of the adjusting screw 405, the cross column 403 is moved by the movement of the adjusting screw sleeve 404, and the cross column 403 slides inside the limiting cross groove 407, the adjusting box 501 is moved by the movement of the adjusting screw sleeve 404, the detection probe 506 is moved by the movement of the adjusting box 501, and then the position of the detection probe 506 can be adjusted, and then the position of the detection probe 506 can be adjusted by pushing The dynamic cylinder 502 pushes the pushing column 503 to move, and the pushing column 503 slides inside the vertical groove 507. At this time, the movable plate 504 drives the rotating groove 5011 to rotate around the fixed column 508, and the movable plate 504 rotates inside the guide groove 505. The rotation of the movable plate 504 drives the horizontal plate 5010 to rotate, and the rotation of the horizontal plate 5010 drives the connecting block 509 to rotate. The rotation of the connecting block 509 drives the detection probe 506 to rotate, and the detection range is adjusted by the rotation of the detection probe 506.

[0040] Embodiment 2

[0041] See also Figure 1 , 3 , 4, 5, 6 and 7 are the second embodiment of the present invention, which is based on the previous embodiment.

[0042] A rotating mechanism 2 is fixedly connected to the front side of the top of the detection platform 1, and the rotating mechanism 2 includes a driving motor 201, and an output end of the driving motor 201 is fixedly connected to a driving gear 204, and the back side of the driving gear 204 is meshedly connected to a rotating ring gear 205, and a circular slide groove 206 is provided in the inner cavity of the rotating ring gear 205. A fixing mechanism 3 is installed on both sides of the top of the rotating ring gear 205, and the fixing mechanism 3 includes a fixing cylinder 301, and a rotating motor 3011 is fixedly connected to the top of the inner wall of the fixing cylinder 301, and a light rod 306 is fixedly connected to the output end of the rotating motor 3011, and a step gear body 303 is installed at the bottom of the surface of the light rod 306, and a positioning plate 307 is installed at the top of the surface of the light rod 306, and connecting columns 304 are fixedly connected to both sides of the top of the positioning plate 307, and the top of the connecting column 304 is fixedly connected to a limiting baffle 305.

[0043] Specifically, the top of the driving motor 201 is fixedly connected to a connecting plate 203, the bottom of the connecting plate 203 is fixedly connected to a connecting seat 202, and the bottom of the connecting seat 202 is fixedly connected to the top of the testing platform 1. By setting the connecting plate 203 and the connecting seat 202, the position of the driving motor 201 is supported, thereby improving the stability of the driving motor 201 and preventing the driving motor 201 from shaking during operation.

[0044] Specifically, the bottom of the surface of the polished rod 306 is fixedly connected with a support plate 308, the top of the support plate 308 is movably connected to the bottom of the step gear body 303, the inner cavity of the polished rod 306 is provided with a threaded groove 3010, the inner cavity of the threaded groove 3010 is threadedly connected with a connecting stud 309, the top of the connecting stud 309 is fixedly connected to the bottom of the limit baffle 305, and the setting of the support plate 308 has a supporting effect on the bottom of the step gear body 303, and the setting of the threaded groove 3010 makes it convenient to connect the connecting stud 309 to the inside of the polished rod 306, and then the step gear body 303 is conveniently fixed.

[0045] Specifically, the bottom of the fixed cylinder 301 is fixedly connected with a connecting rod 302, and the bottom of the connecting rod 302 is fixedly connected to the top of the rotating ring gear 205. The setting of the connecting rod 302 improves the stability of the connection between the fixed cylinder 301 and the rotating ring gear 205, and further enables the fixed cylinder 301 to rotate smoothly.

[0046] The specific implementation of this embodiment is as follows: the step gear body 303 is sleeved on the surface of the polished rod 306 until the bottom of the step gear body 303 contacts the top of the support plate 308, and then the connecting stud 309 is driven to rotate through the limit baffle 305, and the connecting stud 309 is threadedly connected to the threaded groove 3010. At this time, the connecting stud 309 extends into the interior of the polished rod 306, and the movement of the connecting stud 309 drives the limit baffle 305 to move, and the movement of the limit baffle 305 drives the connecting column 304 to move, and the movement of the connecting column 304 drives the positioning plate 307 to closely contact the top of the step gear body 303, so that the position of the step gear body 303 can be adjusted. The position is fixed, and then the polished rod 306 is driven to rotate by the rotating motor 3011, and the step gear body 303 is driven to rotate by the rotation of the polished rod 306, and finally the driving gear 204 is driven to rotate by the driving motor 201, and the rotating ring gear 205 is driven to rotate by the rotation of the driving gear 204, and the rotating ring gear 205 rotates on the surface of the lower guide plate 604 set in the circular slide groove 206, and the step gear body 303 is driven to rotate by the rotation of the rotating ring gear 205, and the fixed cylinder 301 is driven to rotate by the rotation of the step gear body 303, and the step gear body 303 is driven to rotate by the rotation of the fixed cylinder 301, and then the position of the step gear body 303 can be adjusted.

[0047] Embodiment 3

[0048] See also Figure 1 , 3 and 4, the third embodiment of the present invention, this embodiment is based on the previous embodiment.

[0049] A support mechanism 6 is installed on the top of the detection platform 1, and the support mechanism 6 includes a fixed seat 601, a fixed ring 602 is fixedly connected to the top of the surface of the fixed seat 601, a connecting rod 603 is fixedly connected to the surface of the fixing ring 602, and a guide plate 604 is fixedly connected to one side of the connecting rod 603.

[0050] Specifically, there are multiple connecting rods 603, and the connecting rods 603 are distributed in a circumferential manner on the surface of the fixed ring 602. The surface of the guide plate 604 is movably connected to the inside of the rotating ring gear 205 through a circular groove 206, and the rotating ring gear 205 slides on the surface of the guide plate 604. The setting of the circular groove 206 supports the position of the rotating ring gear 205, thereby enabling the rotating ring gear 205 to rotate smoothly on the surface of the guide plate 604.

[0051] The specific implementation of this embodiment is as follows: by setting the connecting rod 603 in multiple ways, the stability of the connection between the fixed ring 602 and the guide plate 604 is improved. By setting the guide plate 604, the rotation position of the rotating ring gear 205 is guided, thereby ensuring the stability of the rotating ring gear 205 during rotation.

[0052] Embodiment 4

[0053] See also Figure 1-9The specific implementation of this embodiment is as follows: first, the step gear body 303 is sleeved on the surface of the polished rod 306 until the bottom of the step gear body 303 contacts the top of the support plate 308, and then the connecting stud 309 is driven to rotate through the limit baffle 305, and the connecting stud 309 is threadedly connected with the threaded groove 3010. At this time, the connecting stud 309 extends into the interior of the polished rod 306, and the movement of the connecting stud 309 drives the limit baffle 305 to move, and the movement of the limit baffle 305 drives the connecting column 304 to move, and the movement of the connecting column 304 drives the positioning plate 307 to be tightly connected with the step gear body 30 3, and then the position of the step gear body 303 can be fixed, and then the polished rod 306 is driven to rotate by the rotating motor 3011, and the step gear body 303 is driven to rotate by the rotation of the polished rod 306, and finally the driving gear 204 is driven to rotate by the driving motor 201, and the rotating ring gear 205 is driven to rotate by the rotation of the driving gear 204, and the rotating ring gear 205 rotates on the surface of the lower guide plate 604 set in the circular slide groove 206, and the step gear body 303 is driven to rotate by the rotation of the rotating ring gear 205, and the fixed cylinder 301 is driven to rotate by the rotation of the step gear body 303, and the fixed cylinder 301 is driven by the rotation of the fixed cylinder 301. The rotation of the fixed cylinder 301 drives the step gear body 303 to rotate, and then the position of the step gear body 303 can be adjusted. Secondly, the servo motor 401 drives the adjusting screw 405 to rotate, and the adjusting screw sleeve 404 is moved by the rotation of the adjusting screw 405. The horizontal column 403 is moved by the movement of the adjusting screw sleeve 404, and the horizontal column 403 slides inside the limit horizontal groove 407. The movement of the adjusting screw sleeve 404 drives the adjustment box 501 to move, and the movement of the adjustment box 501 drives the detection probe 506 to move, and then the position of the detection probe 506 can be adjusted. Secondly, the push cylinder 502 is used to push the push cylinder 502. The movable column 503 moves, and the pushing column 503 slides inside the vertical groove 507. At this time, the movable plate 504 drives the rotating groove 5011 to rotate around the fixed column 508, and the movable plate 504 rotates inside the guide groove 505. The rotation of the movable plate 504 drives the horizontal plate 5010 to rotate, and the rotation of the horizontal plate 5010 drives the connecting block 509 to rotate. The rotation of the connecting block 509 drives the detection probe 506 to rotate, and the detection range is adjusted by the rotation of the detection probe 506 (the above is the working process of the entire device, and the content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field).

[0054] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flaw detection tool for step gears, comprising a detection table (1), characterized in that: The left side of the detection platform (1) is fixedly connected to a side frame (7), the left side of the side frame (7) is equipped with an adjustment mechanism (4), the adjustment mechanism (4) comprises a servo motor (401) and an adjustment screw sleeve (404), and the bottom of the adjustment screw sleeve (404) is fixedly connected to a detection mechanism (5); The detection mechanism (5) comprises an adjustment box (501), a top of one side of the inner wall of the adjustment box (501) is fixedly connected to a push cylinder (502), the output end of the push cylinder (502) is fixedly connected to a push column (503), the surface of the push column (503) is movably connected to a movable plate (504), the bottom of the movable plate (504) penetrates the bottom of the adjustment box (501) and is fixedly connected to a horizontal plate (5010), the bottom of the horizontal plate (5010) is fixedly connected to a connecting block (509), and the bottom of the connecting block (509) is fixedly connected to a detection probe (506); A rotating mechanism (2) is fixedly connected to the front side of the top of the detection platform (1), and the rotating mechanism (2) comprises a driving motor (201), and an output end of the driving motor (201) is fixedly connected to a driving gear (204), and a back side of the driving gear (204) is meshingly connected to a rotating gear ring (205), and a circular sliding groove (206) is provided in the inner cavity of the rotating gear ring (205), and fixing mechanisms (3) are installed on both sides of the top of the rotating gear ring (205), and the fixing mechanism (3) comprises a fixing cylinder (3 01), a rotating motor (3011) is fixedly connected to the top of the inner wall of the fixed cylinder (301), a polished rod (306) is fixedly connected to the output end of the rotating motor (3011), a step gear body (303) is installed at the bottom of the surface of the polished rod (306), a positioning plate (307) is installed at the top of the surface of the polished rod (306), connecting columns (304) are fixedly connected to both sides of the top of the positioning plate (307), and a limit stopper (305) is fixedly connected to the top of the connecting column (304); The output end of the servo motor (401) is fixedly connected with an adjusting screw (405), the surface of the adjusting screw (405) is threadedly connected to the inside of the adjusting screw sleeve (404), the top of the adjusting screw sleeve (404) is fixedly connected with a cross column (403), a limiting transverse groove (407) is provided at the center of the top of the inner wall of the side frame (7), the top of the cross column (403) passes through the limiting transverse groove (407) and is movably connected to the inside of the limiting transverse groove (407); a vertical groove (507) is provided at the top of the inner cavity of the movable plate (504), the inside of the vertical groove (507) is movably connected to the surface of the pushing column (503), and a guide groove (505) is provided at the bottom of the inner wall of the adjusting box (501), the inside of the guide groove (505) is movably connected to the surface of the movable plate (504); A rotation groove (5011) is provided at the bottom of the inner cavity of the movable plate (504), and a fixed column (508) is movably connected inside the rotation groove (5011), and the front side and the back side of the fixed column (508) are fixedly connected to the inner wall of the adjustment box (501); The bottom of the surface of the polished rod (306) is fixedly connected with a support plate (308), the top of the support plate (308) is movably connected with the bottom of the step gear body (303), the inner cavity of the polished rod (306) is provided with a threaded groove (3010), the inner cavity of the threaded groove (3010) is threadedly connected with a connecting stud (309), and the top of the connecting stud (309) is fixedly connected with the bottom of the limit baffle (305); A support mechanism (6) is installed on the top of the detection platform (1), and the support mechanism (6) includes a fixed seat (601), a fixed ring (602) is fixedly connected to the top of the surface of the fixed seat (601), a connecting rod (603) is fixedly connected to the surface of the fixing ring (602), and a guide plate (604) is fixedly connected to one side of the connecting rod (603); There are multiple connecting rods (603), and the connecting rods (603) are distributed around the surface of the fixed ring (602). The surface of the guide plate (604) is movably connected to the inside of the rotating gear ring (205) through a circular groove (206), and the rotating gear ring (205) slides on the surface of the guide plate (604).

2. The flaw detection tool for step gears according to claim 1 is characterized in that: The left side of the servo motor (401) is fixedly connected to a fixed bracket (406), the right side of the fixed bracket (406) is fixedly connected to the left side of the side frame (7), the right side of the side frame (7) is fixedly connected to a stopper (402), and the right side of the adjusting screw (405) is movably connected to the left side of the stopper (402) via a bearing.

3. The flaw detection tool for step gears according to claim 1 is characterized in that: The top of the driving motor (201) is fixedly connected to a connecting plate (203), the bottom of the connecting plate (203) is fixedly connected to a connecting seat (202), and the bottom of the connecting seat (202) is fixedly connected to the top of the detection platform (1).

4. The flaw detection tool for step gears according to claim 1 is characterized in that: The bottom of the fixed cylinder (301) is fixedly connected to a connecting rod (302), and the bottom of the connecting rod (302) is fixedly connected to the top of the rotating gear ring (205).

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