Engine shaft damage detection device

Abstract

The present application discloses an engine shaft damage detection device, comprising a workbench, a clamping mechanism is arranged on the workbench, the clamping mechanism is used to clamp and fix the engine shaft, a slide groove is opened on the top of the workbench, a reciprocating mechanism is arranged in the slide groove, a connecting ring is arranged on the top of the reciprocating mechanism, the reciprocating mechanism is used to drive the connecting ring to move back and forth, outer rings are arranged on both sides of the connecting ring, the engine shaft passes through the outer rings and the connecting rings, a detector for detecting the engine shaft is arranged on the inner wall of one of the outer rings, and a plurality of cleaning mechanisms distributed in a ring array are arranged on the inner wall of the other outer ring, the cleaning mechanisms are used to remove impurities on the surface of the engine shaft. The present application has the advantages of being able to easily remove impurities on the surface of the shaft and ensuring the accuracy of detection data.

Description

Technical Field

[0001] The present application relates to the technical field of parts damage detection, and in particular to an engine shaft damage detection device. Background Art

[0002] The aircraft engine shaft refers to the main axis connecting the various components inside the engine, and is also the basis for the overall operation of the engine. Before the aircraft engine shaft is put into use, it needs to be inspected for damage to ensure its quality of use. However, when the existing damage detection device detects the engine shaft, it is difficult to remove the remaining impurities or oil stains attached to the shaft surface, which will affect the accuracy of the actual detection data, thereby affecting the accuracy of the data. Summary of the invention

[0003] The main purpose of the present application is to provide an engine shaft damage detection device, aiming to solve the technical problem that the existing shaft damage detection device is difficult to remove impurities on the shaft surface, affecting the accuracy of the detection data.

[0004] To achieve the above-mentioned purpose, the present application provides an engine shaft damage detection device, including a workbench, a clamping mechanism is arranged on the workbench, the clamping mechanism is used to clamp and fix the engine shaft, a slide groove is opened on the top of the workbench, a reciprocating mechanism is arranged in the slide groove, a connecting ring is arranged on the top of the reciprocating mechanism, the reciprocating mechanism is used to drive the connecting ring to reciprocate, outer rings are arranged on both sides of the connecting ring, the engine shaft passes through the outer ring and the connecting ring, a detector for detecting the engine shaft is arranged on the inner wall of one of the outer rings, and a plurality of cleaning mechanisms distributed in a ring array are arranged on the inner wall of the other outer ring, the cleaning mechanisms are used to remove impurities on the surface of the engine shaft.

[0005] Optionally, a rotating mechanism is provided in the slide groove, and the rotating mechanism includes a polygonal column movably connected to the side wall of the slide groove, and the other end of the polygonal column movably passes through the side wall of the workbench and is connected to a driving mechanism, and the driving mechanism is used to drive the polygonal column to rotate, and the polygonal column movably passes through the reciprocating mechanism. Two sleeves are sleeved on the polygonal column, and the inner hole of the sleeve is a polygonal hole matching the polygonal column. The two sleeves are movably connected to the two side walls of the reciprocating mechanism respectively, and the two sleeves are fixedly sleeved with a first gear, and the two first gears are meshedly connected with an outer gear ring fixedly sleeved on the outer wall of the corresponding outer ring, and the two outer rings are movably connected to the side wall of the connecting ring.

[0006] Optionally, the reciprocating mechanism includes a transmission screw movably connected to the side wall of the slide groove, the other end of the transmission screw movably passes through the side wall of the workbench and is connected to the driving mechanism, the driving mechanism simultaneously drives the transmission screw and the polygonal prism to rotate forward and reversely, a screw seat is provided on the threaded sleeve of the transmission screw, the screw seat is slidably connected to the inner wall of the slide groove, a connecting block is connected to the top of the screw seat, a connecting ring is connected to the top of the connecting block, the two sleeves are movably connected to the two side walls of the connecting block respectively, and the polygonal prism movably passes through the connecting block.

[0007] Optionally, the driving mechanism includes a supporting plate connected to the outer wall of the workbench, a driving motor is arranged on the supporting plate, the driving motor is connected to a driving wheel, the driving wheel is connected to the end of a transmission screw, a transmission belt is wound around the driving wheel, the driving wheel is connected to a driven wheel through a transmission belt, and the driven wheel is connected to the end of the polygonal column.

[0008] Optionally, a transmission mechanism is arranged inside the outer ring, and the transmission mechanism is used to drive the cleaning mechanism to rotate.

[0009] Optionally, a first annular cavity is opened inside the outer ring, and the transmission mechanism includes a first rotating shaft movably connected to the inner wall of the first annular cavity, the axis of the first rotating shaft passes through the center of the outer ring, the first rotating shaft movably extends out of the first annular cavity and is connected to the cleaning mechanism, a worm gear is fixedly sleeved on the first rotating shaft, the worm gear is meshingly connected to a worm, one end of the worm is movably connected to the inner wall of the first annular cavity, the other end of the worm movably passes through the side wall of the outer ring and is connected to a second gear located in the connecting ring, and the second gear is meshingly connected to a first inner gear ring arranged on the inner wall of the connecting ring.

[0010] Optionally, the cleaning mechanism includes a connecting plate connected to the first rotating shaft, a telescopic rod is connected to the other side of the connecting plate, a brush plate is connected to the other end of the telescopic rod, the brush plate is used to contact the surface of the engine rotating shaft, and a first spring mounted on the telescopic rod is connected between the brush plate and the connecting plate.

[0011] Optionally, two clamping mechanisms are provided to clamp the two ends of the engine shaft respectively, and the connecting ring is located between the two clamping mechanisms.

[0012] Optionally, the clamping mechanism includes a support column arranged on the workbench, a fixed ring is connected to the top of the support column, a plurality of telescopic mechanisms distributed in a circular array are arranged inside the fixed ring, a connecting rod is connected to one end of the telescopic mechanism close to the center of the fixed ring, and the connecting rod is connected to an arc-shaped clamping block for clamping the engine shaft.

[0013] Optionally, a second annular cavity is opened in the fixed ring, and the telescopic mechanism includes a guide sliding rod connected to the inner wall of the second annular cavity, a sliding sleeve is provided on the guide sliding rod, the sliding sleeve movably extends out of the second annular cavity and is connected to the connecting rod, a rack is provided on one side of the sliding sleeve, and the rack is meshingly connected to a third gear, a second rotating shaft is movably connected in the second annular cavity, the third gear is fixedly sleeved on the second rotating shaft, the second rotating shaft movably passes through the side wall of the fixed ring and is connected to a forward and reverse mechanism, and the forward and reverse mechanism is used to drive the second rotating shaft to rotate forward or reverse.

[0014] Optionally, the forward and reverse rotation mechanism includes a rotating ring movably connected to the side wall of the fixed ring, the inner wall of the rotating ring is provided with a second internal gear ring, the second internal gear ring is meshingly connected to a fourth gear, and the fourth gear is connected to one end of the second rotating shaft extending out of the fixed ring.

[0015] Optionally, a locking mechanism is provided on the rotating ring, and a plurality of limiting grooves are provided on one side of the fixed ring close to the rotating ring. The plurality of limiting grooves are distributed in a circular array around the center of the fixed ring, and the locking mechanism can extend into the limiting grooves to limit the rotation of the rotating ring.

[0016] Optionally, the locking mechanism includes a mounting frame arranged on a side wall of the rotating ring away from the fixed ring, and a limit rod is movably arranged on the mounting frame, and the limit rod movably passes through the rotating ring and can extend into the corresponding limit groove.

[0017] Optionally, a limiting plate is fixedly sleeved on the limiting rod, and a second spring sleeved on the limiting rod is connected between the limiting plate and the mounting frame so that the limiting plate fits against the side wall of the rotating ring.

[0018] Optionally, a plurality of supporting legs are connected to the bottom of the workbench, and protective plates are provided on both sides of the top of the workbench.

[0019] The beneficial effects that this application can achieve are as follows:

[0020] After the engine shaft is clamped and fixed by the clamping mechanism, the engine shaft is located in the circle of the outer ring and the connecting ring. During detection, the reciprocating mechanism drives the connecting ring and the two outer rings to move back and forth at the same time, so that the detector can detect the entire axial outer surface of the engine shaft. At this time, the cleaning mechanism also moves back and forth accordingly, thereby achieving the function of removing impurities from the surface of the engine shaft while detecting, thereby improving the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0022] Figure 1 This is a structural schematic diagram of an engine shaft damage detection device in an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the internal structure of an engine shaft damage detection device in an embodiment of the present application (support legs omitted);

[0024] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at B in the middle;

[0025] Figure 4 This is a schematic diagram of the internal structure of the outer ring in the embodiment of the present application;

[0026] Figure 5 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0027] Figure 6 Schematic diagram of the internal structure of the fixing ring in the embodiment of the present application.

[0028] Reference numerals:

[0029] 110-workbench, 111-slideway, 120-clamping mechanism, 121-support column, 122-fixed ring, 1221-second annular cavity, 1222-limiting groove, 123-connecting rod, 124-arc clamping block, 130-reciprocating mechanism, 131-transmission screw, 132-screw seat, 133-connecting block, 140-connecting ring, 150-outer ring, 151-first annular cavity, 160-detector, 170-cleaning mechanism, 171-connecting plate, 172-telescopic rod, 173-brush plate, 174-first spring, 180-rotating mechanism, 181-polygonal column, 182-sleeve, 183-first gear, 190-outer gear ring, 210-driving mechanism, 211-bearing plate, 212-driving motor, 213-driving wheel, 214-transmission belt, 215-driven wheel, 220-transmission mechanism, 221-first rotating shaft, 222-worm wheel, 223-worm, 230-second gear, 240-first inner gear ring, 250-telescopic mechanism, 251-guide rod, 252-sliding sleeve, 253-rack, 254-third gear, 255-second rotating shaft, 260-forward and reverse mechanism, 261-rotating ring, 262-second inner gear ring, 263-fourth gear, 270-locking mechanism, 271-mounting frame, 272-limiting rod, 273-limiting plate, 274-second spring, 280-support leg, 290-protective plate.

[0030] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0035] Example

[0036] Reference Figure 1-Figure 6 The present embodiment provides an engine shaft damage detection device, including a workbench 110, on which a clamping mechanism 120 is arranged, the clamping mechanism 120 is used to clamp and fix the engine shaft, a slide groove 111 is opened on the top of the workbench 110, a reciprocating mechanism 130 is arranged in the slide groove 111, a connecting ring 140 is arranged on the top of the reciprocating mechanism 130, the reciprocating mechanism 130 is used to drive the connecting ring 140 to move back and forth, outer rings 150 are arranged on both sides of the connecting ring 140, the engine shaft passes through the outer ring 150 and the connecting ring 140, a detector 160 for detecting the engine shaft is arranged on the inner wall of one of the outer rings 150, and a plurality of cleaning mechanisms 170 distributed in a ring array are arranged on the inner wall of the other outer ring 150, the cleaning mechanism 170 is used to remove impurities on the surface of the engine shaft.

[0037] Since existing damage detection devices basically do not have the function of removing impurities, the current operation is generally to remove impurities on the surface of the engine shaft manually or with special equipment before proceeding to the next step of detection. This not only reduces work efficiency but also increases the cost of equipment use.

[0038] Therefore, in this embodiment, after the engine shaft is clamped and fixed by the clamping mechanism 120, the engine shaft is located in the circle of the outer ring 150 and the connecting ring 140. During detection, the reciprocating mechanism 130 drives the connecting ring 140 and the two outer rings 150 to move back and forth at the same time, so that the detector 160 performs damage detection on the entire axial outer surface of the engine shaft. At this time, the cleaning mechanism 170 also moves back and forth, and can remove impurities such as oil stains attached to the outer surface of the engine shaft to avoid obstruction of the detector 160 by impurities such as oil stains, thereby improving the accuracy of the detection data results. Therefore, while realizing the detection, it also has the function of removing impurities from the surface of the engine shaft, which improves the accuracy of the detection data, omits the preliminary impurity removal work, improves work efficiency, and saves the cost of special impurity removal equipment.

[0039] As an optional embodiment, a rotating mechanism 180 is provided in the slide groove 111, and the rotating mechanism 180 includes a polygonal column 181 movably connected to the side wall of the slide groove 111, and the other end of the polygonal column 181 movably penetrates the side wall of the workbench 110 and is connected to a driving mechanism 210, and the driving mechanism 210 is used to drive the polygonal column 181 to rotate, and the polygonal column 181 movably penetrates the reciprocating mechanism 130, and two sleeves 182 are sleeved on the polygonal column 181. The inner hole of the sleeve 182 is a polygonal hole that matches the polygonal column 181, and the two sleeves 182 are movably connected to the two side walls of the reciprocating mechanism 130 (through bearings), and the two sleeves 182 are fixedly sleeved with first gears 183, and the two first gears 183 are meshedly connected with an outer gear ring 190 fixedly sleeved on the outer wall of the corresponding outer ring 150, and the two outer rings 150 are movably connected to the side wall of the connecting ring 140 (through bearings or other movable parts).

[0040] In this embodiment, when the reciprocating mechanism 130 drives the connecting ring 140 and the two outer rings 150 to reciprocate as a whole, the two sleeves 182 also slide back and forth on the polygonal column 181 along with the reciprocating mechanism 130. At the same time, the driving mechanism 210 drives the polygonal column 181 to rotate. The polygonal column 181 cooperates with the sleeve 182 with the polygonal holes to drive the sleeve 182 to rotate accordingly. Since the sleeve 182 is movably connected to the side wall of the reciprocating mechanism 130, the reciprocating mechanism 130 will not rotate accordingly, so that the sleeve 182 can reciprocate and rotate at the same time, and the sleeve 182 drives the first gear 183 rotates accordingly, and the first gear 183 is always meshed with the outer gear ring 190, thereby driving the two outer rings 150 to rotate, so that the two outer rings 150 can reciprocate while also rotating, and respectively drive the detector 160 and the cleaning mechanism 170 in the two outer rings 150 to reciprocate along the axial direction of the engine shaft, and also to revolve along the radial direction of the engine shaft, so that the detector 160 can comprehensively detect the outer surface of the engine shaft, and at the same time, the cleaning mechanism 170 can comprehensively remove impurities from the outer surface of the engine shaft, thereby improving the degree of automation and further improving the detection efficiency and accuracy.

[0041] It should be noted that the cross section of the polygonal column 181 can be a regular hexagon, and the cross section of the polygonal hole in the sleeve 182 is also a regular hexagon, which meets the use requirements.

[0042] As an optional embodiment, the reciprocating mechanism 130 includes a transmission screw 131 movably connected to the side wall of the slide groove 111, and the other end of the transmission screw 131 movably passes through the side wall of the workbench 110 and is connected to the driving mechanism 210. The driving mechanism 210 simultaneously drives the transmission screw 131 and the polygonal column 181 to rotate forward and reversely. A screw seat 132 is threadedly sleeved on the transmission screw 131, and the screw seat 132 is slidably connected to the inner wall of the slide groove 111 (through a guide groove or a slide rail). A connecting block 133 is connected to the top of the screw seat 132, and a connecting ring 140 is connected to the top of the connecting block 133. The two sleeves 182 are movably connected to the two side walls of the connecting block 133 (through bearings), and the polygonal column 181 movably passes through the connecting block 133.

[0043] In this embodiment, the driving mechanism 210 can simultaneously drive the transmission screw 131 and the polygonal column 181 to rotate forward and reverse, so that the screw seat 132 can make a reciprocating linear movement along the inner wall of the slide groove 111, and the connecting block 133 on the screw seat 132 and the sleeves 182 on both sides thereof also move back and forth accordingly, and the connecting ring 140 on the connecting block 133 and the outer rings 150 on both sides thereof also move back and forth synchronously, thereby ensuring that the first gear 183 is always in a meshing relationship with the outer gear ring 190. The structural design is ingenious and meets the design requirements.

[0044] As an optional embodiment, the driving mechanism 210 includes a supporting plate 211 connected to the outer wall of the workbench 110, a driving motor 212 is arranged on the supporting plate 211, the driving motor 212 is connected to a driving wheel 213, the driving wheel 213 is connected to the end of the transmission screw 131, a transmission belt 214 is wound around the driving wheel 213, the driving wheel 213 is connected to a driven wheel 215 through the transmission belt 214, and the driven wheel 215 is connected to the end of the polygonal column 181.

[0045] In this embodiment, when the driving motor 212 is running, it can drive the driving wheel 213 and the driven wheel 215 to rotate synchronously under the action of the transmission belt 214, so that only one driving motor 212 can be used to make the transmission screw 131 and the polygonal column 181 rotate synchronously, without the need to set up separate driving sources, thereby reducing equipment costs.

[0046] As an optional embodiment, a transmission mechanism 220 is provided in the outer ring 150, and the transmission mechanism 220 is used to drive the cleaning mechanism 170 to rotate, so that the cleaning mechanism 170 moves back and forth and revolves around the engine shaft while also automatically performing operations, thereby further improving the cleaning mechanism 170's efficient impurity removal effect on the engine shaft surface.

[0047] As an optional embodiment, a first annular cavity 151 is opened inside the outer ring 150, and the transmission mechanism 220 includes a first rotating shaft 221 movably connected to the inner wall of the first annular cavity 151 (through a bearing), the axis of the first rotating shaft 221 passes through the center of the outer ring 150, the first rotating shaft 221 movably extends out of the first annular cavity 151 and is connected to the cleaning mechanism 170, a worm gear 222 is fixedly sleeved on the first rotating shaft 221, the worm gear 222 is meshingly connected to a worm 223, one end of the worm 223 is movably connected to the inner wall of the first annular cavity 151 (through a bearing), and the other end of the worm 223 movably passes through the side wall of the outer ring 150 and is connected to a second gear 230 located in the connecting ring 140, and the second gear 230 is meshingly connected to a first inner gear ring 240 arranged on the inner wall of the connecting ring 140.

[0048] In this embodiment, when the outer ring 150 rotates, the transmission mechanism 220 and the cleaning mechanism 170 on the inner wall of the outer ring 150 revolve synchronously, so that the second gear 230 also revolves synchronously, and the first inner gear ring 240 meshing with the second gear 230 is fixedly arranged on the inner wall of the connecting ring 140, and the connecting ring 140 is also fixed, so that the second gear 230 can rotate while revolving along the first inner gear ring 240, thereby driving the worm 223 to rotate, thereby driving the second gear 230 to rotate, and the first rotating shaft 221 rotates accordingly, and finally drives the cleaning mechanism 170 to rotate, thereby realizing the self-rotation of the cleaning mechanism 170. This embodiment utilizes the inherent conditions of the connecting ring 140 being stationary and the outer ring 150 rotating, and the rotation of the outer ring 150 can be synchronously converted into the self-rotation of the cleaning mechanism 170 through the transmission mechanism 220, without the need to set up a driving component to drive the self-rotation of the cleaning mechanism 170, thereby reducing the cost, and the structural design is ingenious and compact, meeting the use requirements.

[0049] As an optional embodiment, the cleaning mechanism 170 includes a connecting plate 171 connected to the first rotating shaft 221, a telescopic rod 172 is connected to the other side of the connecting plate 171, and a brush plate 173 is connected to the other end of the telescopic rod 172. The brush plate 173 is used to contact the surface of the engine rotating shaft, and a first spring 174 mounted on the telescopic rod 172 is connected between the brush plate 173 and the connecting plate 171.

[0050] In this embodiment, when cleaning, the brush plate 173 with bristles is used to wipe the surface of the engine shaft in an all-round manner, thereby achieving a quick cleaning and impurity removal effect. When installing, the brush plate 173 is pushed outward, and the telescopic rod 172 is shortened accordingly. At this time, after the engine shaft passes through a plurality of brush plates 173, the brush plate 173 is loosened, and the brush plate 173 is always pressed against the outer surface of the engine shaft under the action of the first spring 174 for full contact, thereby ensuring the cleaning effect on the engine shaft. At the same time, it can be applied to engine shafts of different diameters, thereby improving versatility.

[0051] As an optional embodiment, two clamping mechanisms 120 are provided to clamp the two ends of the engine shaft respectively. The connecting ring 140 is located between the two clamping mechanisms 120. When clamping, the engine shaft is first passed through the connecting ring 140 and the two outer rings 150, and then the two ends of the engine shaft are clamped and fixed by the two clamping mechanisms 120 respectively. The clamping structure is firm and stable to prevent the engine shaft from rotating during cleaning and inspection.

[0052] As an optional embodiment, the clamping mechanism 120 includes a support column 121 arranged on the workbench 110, the top of the support column 121 is connected to a fixed ring 122, a plurality of telescopic mechanisms 250 distributed in a circular array are arranged in the fixed ring 122, and one end of the telescopic mechanism 250 close to the center of the fixed ring 122 is connected to a connecting rod 123, and the connecting rod 123 is connected to an arc-shaped clamping block 124 for clamping the engine shaft.

[0053] In this embodiment, when clamping is required, the end of the engine shaft is passed through a plurality of arc-shaped clamping blocks 124, and then the arc-shaped clamping block 124 is driven close to the engine shaft by the telescopic mechanism 250 to clamp the engine shaft. By setting the telescopic mechanism 250, the arc-shaped clamping block 124 can be driven to radially extend and retract along the fixing ring 122, so that it can be suitable for clamping engine shafts of different diameters, thereby improving versatility.

[0054] As an optional embodiment, a second annular cavity 1221 is opened in the fixed ring 122, and the telescopic mechanism 250 includes a guide rod 251 connected to the inner wall of the second annular cavity 1221, and a sliding sleeve 252 is slidably sleeved on the guide rod 251. The sliding sleeve 252 movably extends out of the second annular cavity 1221 and is connected to the connecting rod 123. A rack 253 is provided on one side of the sliding sleeve 252, and the rack 253 is meshingly connected to the third gear 254. A second rotating shaft 255 is movably connected in the second annular cavity 1221, and the third gear 254 is fixedly sleeved on the second rotating shaft 255. The second rotating shaft 255 movably passes through the side wall of the fixed ring 122 and is connected to a forward and reverse mechanism 260. The forward and reverse mechanism 260 is used to drive the second rotating shaft 255 to rotate forward or reverse.

[0055] In this embodiment, the forward and reverse mechanism 260 drives the second rotating shaft 255 to rotate forward or reverse, thereby driving the second rotating shaft 255 and the third gear 254 to rotate forward or reverse, and can drive the rack 253 and the sliding sleeve 252 to slide forward and backward along the linear direction of the guide rod 251, thereby driving the connecting rod 123 and the arc-shaped clamping block 124 to move in a linear direction, thereby realizing the radial extension and contraction effect of the arc-shaped clamping block 124 along the fixing ring 122.

[0056] As an optional embodiment, the forward and reverse mechanism 260 includes a rotating ring 261 movably connected to the side wall of the fixed ring 122, and a second internal gear ring 262 is provided on the inner wall of the rotating ring 261. The second internal gear ring 262 is meshingly connected to a fourth gear 263, and the fourth gear 263 is connected to one end of the second rotating shaft 255 extending out of the fixed ring 122.

[0057] In this embodiment, when the second rotating shaft 255 needs to be rotated, the rotating ring 261 can be manually rotated to drive the second inner gear ring 262 on its inner wall to rotate, thereby driving the fourth gear 263 to rotate, and the second rotating shaft 255 can be rotated. The operation is convenient and fast, and no motor drive is required, which saves costs. It should be noted that the rotating ring 261 is set as a driving member here in order to leave an internal annular space for the engine shaft to pass through, so as to facilitate the clamping operation.

[0058] As an optional embodiment, a locking mechanism 270 is provided on the rotating ring 261, and a plurality of limiting grooves 1222 are opened on the side of the fixed ring 122 close to the rotating ring 261. The plurality of limiting grooves 1222 are distributed in a circular array around the center of the fixed ring 122. The locking mechanism 270 can extend into the limiting grooves 1222 to limit the rotation of the rotating ring 261.

[0059] In this embodiment, after the arc-shaped clamping block 124 completes clamping and fixing of the engine shaft, the locking mechanism 270 can extend into the limiting groove 1222 corresponding to the fixing ring 122, thereby limiting the rotation of the rotating ring 261 to prevent the rotating ring 261 from shaking and causing the arc-shaped clamping block 124 to loosen, thereby ensuring a secure and stable clamping.

[0060] As an optional embodiment, the locking mechanism 270 includes a mounting frame 271 disposed on a side wall of the rotating ring 261 away from the fixed ring 122, and a limit rod 272 is movably provided on the mounting frame 271, and the limit rod 272 movably penetrates the rotating ring 261 and can extend into the corresponding limit groove 1222. The locking effect can be achieved by inserting the limit rod 272 into the corresponding limit groove 1222, and when unlocking is required, the limit rod 272 can be pulled out, which is convenient and quick to operate.

[0061] As an optional implementation, a limiting plate 273 is fixedly mounted on the limiting rod 272 , and a second spring 274 mounted on the limiting rod 272 is connected between the limiting plate 273 and the mounting frame 271 so that the limiting plate 273 fits against the side wall of the rotating ring 261 .

[0062] In this embodiment, during operation, first pull the limit rod 272 to disengage it from the limit groove 1222, rotate the rotating ring 261 to finally allow the arc-shaped clamping block 124 to clamp the engine shaft, and then release the limit rod 272. Under the action of the second spring 274, the limit plate 273 can be attached to the side wall of the rotating ring 261. At the same time, the limit rod 272 is also inserted into the corresponding limit groove 1222 to achieve a locking effect. Under the action of the second spring 274, the limit rod 272 can always be inserted into the limit groove 1222, and it also has a certain anti-slip effect. When unlocking, just pull the limit rod 272 outward.

[0063] As an optional implementation, a plurality of supporting legs 280 are connected to the bottom of the workbench 110 to give it a certain height for easy operation, and protective plates 290 are provided on both sides of the top of the workbench 110 to prevent accidental contact with the engine shaft during inspection. It should be noted that the protective plate 290 is detachable, and the protective plate 290 needs to be removed when installing the engine shaft, and then installed when inspecting.

[0064] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An engine shaft damage detection device, characterized in that: A workbench is provided on the workbench, the clamping mechanism is used to clamp and fix the engine shaft, a slide groove is provided on the top of the workbench, a reciprocating mechanism is provided in the slide groove, a connecting ring is provided on the top of the reciprocating mechanism, the reciprocating mechanism is used to drive the connecting ring to move back and forth, outer rings are provided on both sides of the connecting ring, the engine shaft passes through the outer rings and the connecting rings, a detector for detecting the engine shaft is provided on the inner wall of one of the outer rings, and a plurality of cleaning mechanisms distributed in a ring array are provided on the inner wall of the other outer ring, the cleaning mechanisms are used to remove impurities on the surface of the engine shaft; A rotating mechanism is provided in the slide groove, and the rotating mechanism includes a polygonal column movably connected to the side wall of the slide groove, the other end of the polygonal column movably passes through the side wall of the workbench and is connected to a driving mechanism, the driving mechanism is used to drive the polygonal column to rotate, the polygonal column movably passes through the reciprocating mechanism, two sleeves are sleeved on the polygonal column, the inner hole of the sleeve is a polygonal hole matching the polygonal column, the two sleeves are movably connected to the two side walls of the reciprocating mechanism respectively, the two sleeves are fixedly sleeved with a first gear, the two first gears are meshedly connected with an outer gear ring fixedly sleeved on the outer wall of the corresponding outer ring, and the two outer rings are movably connected to the side wall of the connecting ring.

2. The engine shaft damage detection device according to claim 1, characterized in that: The reciprocating mechanism includes a transmission screw movably connected to the side wall of the slide groove, the other end of the transmission screw movably passes through the side wall of the workbench and is connected to the driving mechanism, the driving mechanism simultaneously drives the transmission screw and the polygonal column to reverse forward and reverse, a screw seat is provided on the threaded sleeve of the transmission screw, the screw seat is slidably connected to the inner wall of the slide groove, a connecting block is connected to the top of the screw seat, the connecting ring is connected to the top of the connecting block, the two sleeves are movably connected to the two side walls of the connecting block respectively, and the polygonal column movably passes through the connecting block.

3. The engine shaft damage detection device according to claim 2, characterized in that: The driving mechanism includes a supporting plate connected to the outer wall of the workbench, a driving motor is arranged on the supporting plate, the driving motor is connected to a driving wheel, the driving wheel is connected to the end of the transmission screw, a transmission belt is wound around the driving wheel, the driving wheel is connected to a driven wheel through the transmission belt, and the driven wheel is connected to the end of the polygonal column.

4. An engine shaft damage detection device as claimed in any one of claims 1 to 3, characterized in that: A transmission mechanism is arranged inside the outer ring, and the transmission mechanism is used to drive the cleaning mechanism to rotate.

5. The engine shaft damage detection device according to claim 4, characterized in that: A first annular cavity is defined inside the outer ring, and the transmission mechanism comprises a first rotating shaft movably connected to the inner wall of the first annular cavity, the axis of the first rotating shaft passes through the center of the outer ring, the first rotating shaft movably extends out of the first annular cavity and is connected to the cleaning mechanism, a worm gear is fixedly sleeved on the first rotating shaft, the worm gear is meshingly connected to a worm, one end of the worm is movably connected to the inner wall of the first annular cavity, the other end of the worm movably passes through the side wall of the outer ring and is connected to a second gear located in the connecting ring, and the second gear is meshingly connected to a first inner gear ring disposed on the inner wall of the connecting ring.

6. The engine shaft damage detection device according to claim 5, characterized in that: The cleaning mechanism includes a connecting plate connected to the first rotating shaft, a telescopic rod is connected to the other side of the connecting plate, a brush plate is connected to the other end of the telescopic rod, the brush plate is used to contact the surface of the engine rotating shaft, and a first spring sleeved on the telescopic rod is connected between the brush plate and the connecting plate.

7. The engine shaft damage detection device according to claim 1, characterized in that: The clamping mechanisms are provided with two to clamp the two ends of the engine shaft respectively, and the connecting ring is located between the two clamping mechanisms.

8. The engine shaft damage detection device according to claim 7, characterized in that: The clamping mechanism includes a support column arranged on the workbench, a fixed ring is connected to the top of the support column, a plurality of telescopic mechanisms distributed in a ring array are arranged inside the fixed ring, a connecting rod is connected to one end of the telescopic mechanism close to the center of the fixed ring, and the connecting rod is connected to an arc-shaped clamping block for clamping the engine shaft.

9. The engine shaft damage detection device according to claim 8, characterized in that: A second annular cavity is provided in the fixed ring, and the telescopic mechanism includes a guide slide rod connected to the inner wall of the second annular cavity, a sliding sleeve is provided on the guide slide rod, and the sliding sleeve movably extends out of the second annular cavity and is connected to the connecting rod, a rack is provided on one side of the sliding sleeve, and the rack is meshed with a third gear, a second rotating shaft is movably connected in the second annular cavity, and the third gear is fixedly sleeved on the second rotating shaft, and the second rotating shaft movably passes through the side wall of the fixed ring and is connected to a forward and reverse mechanism, and the forward and reverse mechanism is used to drive the second rotating shaft to rotate forward or reverse.

10. The engine shaft damage detection device according to claim 9, characterized in that: The forward and reverse mechanism includes a rotating ring movably connected to the side wall of the fixed ring, the inner wall of the rotating ring is provided with a second internal gear ring, the second internal gear ring is meshedly connected with a fourth gear, and the fourth gear is connected to one end of the second rotating shaft extending out of the fixed ring.

11. The engine shaft damage detection device according to claim 10, characterized in that: The rotating ring is provided with a locking mechanism, and a plurality of limiting grooves are provided on a side of the fixed ring close to the rotating ring. The plurality of limiting grooves are distributed in a circular array around the center of the fixed ring, and the locking mechanism can extend into the limiting grooves to limit the rotation of the rotating ring.

12. The engine shaft damage detection device according to claim 11, characterized in that: The locking mechanism comprises a mounting frame arranged on a side wall of the rotating ring away from the fixed ring, a limiting rod is movably arranged on the mounting frame, and the limiting rod movably passes through the rotating ring and can extend into the corresponding limiting groove.

13. The engine shaft damage detection device according to claim 12, characterized in that: A limiting plate is fixedly sleeved on the limiting rod, and a second spring sleeved on the limiting rod is connected between the limiting plate and the mounting frame so that the limiting plate is fitted to the side wall of the rotating ring.

14. The engine shaft damage detection device according to claim 1, characterized in that: A plurality of supporting legs are connected to the bottom of the workbench, and protective plates are arranged on both sides of the top of the workbench.

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