A wall thickness measurement device and method for measuring turbine engine casing wall thickness

Abstract

The present application relates to the technical field of thickness measurement, and discloses a wall thickness measuring device and a method for measuring the wall thickness of a turbine engine shell, which comprises a device main body, a console and a rotating mechanism, the top of the device main body is fixedly provided with the console, the inside of the device main body is provided with the rotating mechanism, and the inside of the device main body is provided with an internal measuring mechanism. The inside and outside of the turbine engine shell are respectively provided with an internal detection mechanism and an external detection mechanism, and when the thickness of the turbine engine shell is detected, the horizontal part of the turbine engine shell can be detected by horizontally moving the internal detection slider and the external detection slider, then the vertical part of the turbine engine shell can be detected by vertically moving the internal detection slider and the external detection slider, and the turbine engine shell keeps rotating during the detection process, so that the thickness of the turbine engine shell can be detected in all directions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thickness measurement, in particular to a wall thickness measuring device and a method for measuring the wall thickness of a turbine engine shell. BACKGROUND

[0002] The capacitive thickness sensor can accurately measure the thickness of the object by setting two parallel electrodes on both sides of the object, and the capacitance difference on both sides changes with the material and thickness of the object.

[0003] Chinese patent CN108709517B discloses an ultrasonic thickness gauge convenient to operate, which is provided with a suction tube and a suction disc around the sensor, and a flexible probe is installed, which can be adsorbed on the surface of the object during work and then moved.

[0004] The diameter of the turbine blade of the turbine engine shell is much larger than the diameter of the rotating shaft, which leads to the complexity of the structure of the turbine engine shell and the existence of some mutually perpendicular shells inside the turbine engine shell. The detection accuracy of the conventional thickness measuring equipment for the complex mechanism shell is low, and it is difficult to detect the perpendicular part of the turbine engine shell. SUMMARY

[0005] In view of the shortcomings of the prior art, the present application provides a wall thickness measuring device and a method for measuring the wall thickness of a turbine engine shell.

[0006] A wall thickness measuring device and a method for measuring the wall thickness of a turbine engine shell, comprising a device main body, a console and a rotating mechanism, the top of the device main body is fixedly installed with the console, the inside of the device main body is installed with the rotating mechanism, the inside of the device main body is installed with the internal measuring mechanism, and the top of the device main body is installed with the external measuring mechanism.

[0007] The rotating mechanism comprises a rotating disc connecting sleeve and a shell bearing rotating disc, and the shell bearing rotating disc is rotatably installed on the top of the device main body through the rotating disc connecting sleeve.

[0008] The internal measuring mechanism comprises an internal transmission screw and an internal detection slider, the internal transmission screw can drive the internal detection slider to move in the internal measuring mechanism when rotating, the external thread of the internal transmission screw is connected with an internal transmission clamping block, the bottom of the internal transmission clamping block is fixedly connected with the internal detection slider through an internal transmission connecting chain, and the external of the internal detection slider is installed with an internal detection head.

[0009] The external measuring mechanism comprises an external transmission screw and an external detection slider, the external transmission screw can drive the external detection slider to move inside the external measuring mechanism when the external transmission screw rotates, an external transmission clamping block is connected with the external transmission screw in external thread, the top of the external transmission clamping block is fixedly connected with the external detection slider through an external transmission connecting chain, and a vertical detection head and a horizontal detection head are respectively installed on the outside of the external detection slider.

[0010] The shell carrying turntable can drive the internal transmission screw and the external transmission screw to rotate synchronously when the shell carrying turntable rotates, the shell carrying turntable can drive the turbine engine shell to rotate when the shell carrying turntable rotates, the internal transmission screw and the external transmission screw can drive the internal detection slider and the external detection slider to move synchronously when the internal transmission screw and the external transmission screw rotate, and the internal detection slider and the external detection slider can detect the thickness of the horizontal part of the turbine engine shell through the internal detection head and the vertical detection head when the internal detection slider and the external detection slider move horizontally, and the internal detection slider and the external detection slider can detect the thickness of the vertical part of the turbine engine shell through the internal detection head and the horizontal detection head when the internal detection slider and the external detection slider move vertically.

[0011] Preferably, the rotating mechanism comprises a driving motor and a turntable connecting sleeve, the driving motor is installed inside the device body, the turntable connecting sleeve is rotatably installed inside the device body, a motor gear is fixedly installed on the driving end of the driving motor, a sleeve gear is fixedly installed on the outside of the turntable connecting sleeve, a shell carrying turntable is fixedly connected to the top of the turntable connecting sleeve, a shell limiting block is fixedly installed on the top of the shell carrying turntable, and a center transmission gear is fixedly installed inside the shell carrying turntable.

[0012] The driving motor and the turntable connecting sleeve are drivingly connected through the meshing of the motor gear and the sleeve gear.

[0013] Preferably, the outside of the turntable connecting sleeve is rotatably connected with the device body, the center transmission gear is installed at the center of the shell carrying turntable, and a cylindrical channel is formed in the center of the turntable connecting sleeve, the shell carrying turntable and the center transmission gear.

[0014] A plurality of shell limiting blocks are installed on the top of the shell carrying turntable, and the plurality of shell limiting blocks are circumferentially distributed on the top of the shell carrying turntable.

[0015] Preferably, the internal measuring mechanism comprises a central fixed rod fixedly installed in the interior of the device body, a horizontal support block fixedly installed on the outside of the central fixed rod, a fixed rod gear rotatably installed on the outside of the central fixed rod, an internal adjusting sliding groove opened in the interior of the horizontal support block, an internal expansion slot slidably installed on the top of the horizontal support block, an expansion slot spring installed in the interior of the adjusting sliding groove, an internal detection sliding block slidably installed in the interior of the internal expansion slot, an internal detection head fixedly installed on the top of the internal detection sliding block, an internal transmission connecting chain fixedly connected to one side of the internal detection sliding block, a vertical lifting sleeve fixedly installed on the top of the horizontal support block, an internal transmission screw rotatably installed on the top of the central fixed rod, and a screw gear fixedly installed on the outside of the internal transmission screw.

[0016] The screw gear and the central transmission gear are connected through the fixed rod gear.

[0017] Preferably, the bottom of the central fixed rod is fixedly installed in the interior of the device body, the horizontal support block and the fixed rod gear are installed on the outside of the central fixed rod, the top of the central fixed rod is rotatably connected with the internal transmission screw, and the central fixed rod passes through the center of the rotating disc connecting sleeve.

[0018] One end of the expansion slot spring is connected with the bottom of the internal expansion slot, the other end of the expansion slot spring is fixedly connected in the interior of the internal adjusting sliding groove, and the bottom of the internal expansion slot is attached to the top of the horizontal support block.

[0019] Preferably, the internal transmission block is slidably installed in the interior of the vertical lifting sleeve through the internal transmission screw.

[0020] The interior of the vertical lifting sleeve is opened and formed with a sliding groove with an outline attached to the outside of the internal transmission block, and the screw gear is installed between the horizontal support block and the vertical lifting sleeve.

[0021] Preferably, the external measuring mechanism comprises a transmission rotating disc and an external support seat, the transmission rotating disc is rotatably installed on the top of the device body, the external support seat is fixedly installed on the top of the device body, an external transmission screw is fixedly connected to the top of the transmission rotating disc, an external transmission connecting chain is fixedly connected to the top of the external transmission block, an external support block is movably installed on the top of the external support seat, an external expansion slot spring is installed in the interior of the external support block, an external expansion sliding groove is slidably installed on the outside of the external support block, an external detection sliding block is slidably installed in the interior of the external expansion sliding groove, a vertical detection head is installed on the outside of the external detection sliding block, a horizontal detection head is installed on the outside of the external detection sliding block, a limiting clamping groove is opened on the top of the external support seat, and a protective sleeve is slidably installed on the outside of the external support block.

[0022] The bottom of the external transmission screw rod is fixedly connected with the top of the transmission rotating disc through an external support base.

[0023] Preferably, a sliding groove is formed in the interior of the external support block and matches the external contour of the external transmission clamping block, and the external support block is rotatably installed in the limiting clamping groove through the external transmission clamping block.

[0024] The external transmission connection is achieved between the external part of the transmission rotating disc and the shell bearing rotating disc.

[0025] Preferably, the external expansion groove spring is used for the sliding connection between the external expansion groove and the external support block, and the external detection sliding block is used for the sliding connection between the vertical detection head and the horizontal detection head and the external expansion groove.

[0026] The protective sleeve is sleeved on the external part of the external support block, one side of the protective sleeve is provided with an opening, and the internal contour of the protective sleeve matches the external contour of the external support block.

[0027] Compared with the prior art, the wall thickness measuring device and the method for measuring the wall thickness of the turbine engine shell have the following beneficial effects:

[0028] 1. The wall thickness measuring device is provided with an internal detection mechanism and an external detection mechanism on the inner side and the outer side of the turbine engine shell, respectively, and when the thickness of the turbine engine shell is detected, the horizontal part of the turbine engine shell can be detected by the horizontal movement of the internal detection sliding block and the external detection sliding block, and then the vertical part of the turbine engine shell can be detected by the vertical movement of the internal detection sliding block and the external detection sliding block, and the turbine engine shell remains in a rotating state during the detection process, so that the thickness of the turbine engine shell can be detected in all directions.

[0029] 2. The wall thickness measuring device can drive the internal transmission screw rod and the external transmission screw rod to rotate synchronously through a shell bearing rotating disc when the turbine engine shell is measured, so that the internal detection sliding block and the external detection sliding block can move synchronously, the positions among the internal detection head, the horizontal detection head and the vertical detection head remain unchanged, and the detection result is more accurate.

[0030] 3. The wall thickness measuring device can drive the internal detection sliding block and the external detection sliding block to move through the internal transmission clamping block and the external transmission clamping block during the working process, and the moving path is fixed, so that the internal detection sliding block and the external detection sliding block can always move at a constant speed. DETAILED DESCRIPTION

[0031] Figure 1 It is a perspective structural schematic view of the wall thickness measuring device.

[0032] Figure 2 It is the internal structure schematic view of a wall thickness measuring device of the present application;

[0033] Figure 3 It is the three-dimensional structure schematic view of the shell bearing turntable of a wall thickness measuring device of the present application;

[0034] Figure 4 It is the internal structure schematic view of the shell bearing turntable of a wall thickness measuring device of the present application;

[0035] Figure 5 It is the internal structure schematic view of the internal measuring mechanism of a wall thickness measuring device of the present application;

[0036] Figure 6 It is the sectional structure schematic view of the horizontal support block of a wall thickness measuring device of the present application;

[0037] Figure 7 It is the three-dimensional structure schematic view of the external measuring mechanism of a wall thickness measuring device of the present application Figure 1 ;

[0038] Figure 8 It is the three-dimensional structure schematic view of the external measuring mechanism of a wall thickness measuring device of the present application Figure 2 ;

[0039] Figure 9 It is the internal structure schematic view of the external measuring mechanism of a wall thickness measuring device of the present application;

[0040] Figure 10 It is the sectional structure schematic view of the external support block of a wall thickness measuring device of the present application.

[0041] In the figure: 1, device main body; 2, control console; 3, rotating mechanism; 31, driving motor; 32, motor gear; 33, turntable connecting sleeve; 34, sleeve gear; 35, shell bearing turntable; 36, shell limiting block; 37, center transmission gear; 4, internal measuring mechanism; 41, center fixed rod; 42, horizontal support block; 43, fixed rod gear; 44, internal adjusting sliding groove; 45, internal expansion slot; 46, expansion slot spring; 47, internal detection sliding block; 48, internal detection head; 49, internal transmission connecting chain; 410, vertical lifting sleeve; 411, internal transmission screw; 412, screw gear; 413, internal transmission clamping block; 5, external measuring mechanism; 51, transmission turntable; 52, external support seat; 53, external transmission screw; 54, external transmission clamping block; 55, external transmission connecting chain; 56, external support block; 57, external expansion slot spring; 58, external expansion sliding groove; 59, external detection sliding block; 510, vertical detection head; 511, horizontal detection head; 512, limiting clamping groove; 513, protective sleeve. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0043] As introduced in the background, the existing problems in the prior art, in order to solve the above technical problems, the present application provides a wall thickness measuring device and a method for measuring the wall thickness of a turbine engine shell. Embodiment one:

[0044] Please refer to Figure 1 - Figure 10 A wall thickness measuring device, comprising a device body 1, a console 2 and a rotating mechanism 3, the top of the device body 1 is fixedly installed with the console 2, the inside of the device body 1 is installed with the rotating mechanism 3, the inside of the device body 1 is installed with an internal measuring mechanism 4, and the top of the device body 1 is installed with an external measuring mechanism 5.

[0045] The rotating mechanism 3 comprises a turntable connecting sleeve 33 and a shell bearing turntable 35, and the shell bearing turntable 35 is rotatably installed on the top of the device body 1 through the turntable connecting sleeve 33.

[0046] The internal measuring mechanism 4 comprises an internal transmission screw 411 and an internal detection slider 47, the internal transmission screw 411 can drive the internal detection slider 47 to move inside the internal measuring mechanism 4 when the internal transmission screw 411 rotates, the external thread of the internal transmission screw 411 is connected with an internal transmission clamping block 413, the bottom of the internal transmission clamping block 413 is fixedly connected with the internal detection slider 47 through an internal transmission connecting chain 49, and the outside of the internal detection slider 47 is installed with an internal detection head 48.

[0047] The external measuring mechanism 5 comprises an external transmission screw 53 and an external detection slider 59, the external transmission screw 53 can drive the external detection slider 59 to move inside the external measuring mechanism 5 when the external transmission screw 53 rotates, the external thread of the external transmission screw 53 is connected with an external transmission clamping block 54, the top of the external transmission clamping block 54 is fixedly connected with the external detection slider 59 through an external transmission connecting chain 55, and the outside of the external detection slider 59 is respectively installed with a vertical detection head 510 and a horizontal detection head 511.

[0048] The shell bearing turntable 35 can drive the internal transmission screw 411 and the external transmission screw 53 to rotate synchronously when it rotates, and can drive the turbine engine shell to rotate when it rotates. The internal detection slider 47 and the external detection slider 59 can move synchronously when the internal transmission screw 411 and the external transmission screw 53 rotate synchronously, and the thickness of the horizontal part of the turbine engine shell can be detected by the internal detection head 48 and the vertical detection head 510 when the internal detection slider 47 and the external detection slider 59 move horizontally, while the thickness of the vertical part of the turbine engine shell can be detected by the internal detection head 48 and the horizontal detection head 511 when the internal detection slider 47 and the external detection slider 59 move vertically.

[0049] When working, first place the turbine engine shell to be detected on the shell bearing turntable 35, and when starting to detect the turbine engine shell, the rotating mechanism 3 can drive the shell bearing turntable 35 to rotate, thereby driving the turbine engine shell on the shell bearing turntable 35 to rotate synchronously. When the shell bearing turntable 35 rotates, it can also drive the internal transmission screw 411 and the external transmission screw 53 to rotate, and when the internal transmission screw 411 rotates, it can drive the internal detection slider 47 to move horizontally first and then vertically along the outside of the internal measurement mechanism 4, while the external transmission screw 53 rotates and can also drive the external detection slider 59 to move horizontally first and then vertically. When the internal detection slider 47 and the external detection slider 59 move horizontally, the internal detection head 48 and the vertical detection head 510 form two parallel electrodes to detect the thickness of the turbine engine shell (two parallel electrodes and the turbine engine shell form a capacitor, and when the thickness of the turbine engine shell changes, the capacitance of the capacitor also changes). When the internal detection slider 47 and the external detection slider 59 move vertically, the internal detection slider 47 and the external detection slider 59 form two parallel electrodes to measure the thickness of the vertical part of the turbine engine shell, and during the detection process, the turbine engine shell remains in a rotating state, the external expansion slot spring 57 and the external detection slider 59 remain in a moving state, and the thickness of the turbine engine shell can be detected comprehensively. Example two:

[0050] The difference from the above-mentioned embodiment is that, please refer to Figure 2 - Figure 4, the rotating mechanism 3 comprises a driving motor 31 and a rotating disc connecting sleeve 33, the driving motor 31 is installed in the inside of the device main body 1, the rotating disc connecting sleeve 33 is rotatably installed in the inside of the device main body 1, the driving end of the driving motor 31 is fixedly installed with a motor gear 32, the outside of the rotating disc connecting sleeve 33 is fixedly installed with a sleeve gear 34, the top of the rotating disc connecting sleeve 33 is fixedly connected with a shell bearing rotating disc 35, the top of the shell bearing rotating disc 35 is fixedly installed with a shell limiting block 36, the inside of the shell bearing rotating disc 35 is fixedly installed with a center transmission gear 37;

[0051] The driving motor 31 and the rotating disc connecting sleeve 33 are transmission connected through gear meshing of the motor gear 32 and the sleeve gear 34.

[0052] The outside of the rotating disc connecting sleeve 33 is rotatably connected with the device main body 1, the center transmission gear 37 is installed at the center of the shell bearing rotating disc 35, the rotating disc connecting sleeve 33, the shell bearing rotating disc 35 and the center transmission gear 37 are all provided with a cylindrical channel at the center;

[0053] The top of the shell bearing rotating disc 35 is installed with a plurality of shell limiting blocks 36, the plurality of shell limiting blocks 36 are circumferentially distributed on the top of the shell bearing rotating disc 35.

[0054] In working, first, the turbine engine shell is placed on the shell bearing rotating disc 35, the shell limiting blocks 36 on the shell bearing rotating disc 35 can limit the position of the turbine engine shell, so that the center of the turbine engine shell is on the same axis with the center of the shell bearing rotating disc 35, when the driving motor 31 is started, the motor gear 32 can be driven to rotate, when the motor gear 32 rotates, the rotating disc connecting sleeve 33 can be driven to rotate in the inside of the device main body 1 through the sleeve gear 34, when the rotating disc connecting sleeve 33 rotates, the shell bearing rotating disc 35 can be driven to rotate synchronously, when the shell bearing rotating disc 35 rotates, the turbine engine shell can be driven to rotate, and when the shell bearing rotating disc 35 rotates, the internal detection slider 47 and the external detection slider 59 on the internal measuring mechanism 4 and the external measuring mechanism 5 can be driven to move for detection work, so that the turbine engine can keep uniform rotation in the detection process, so that the thickness of the turbine engine shell can be comprehensively measured. Example three:

[0055] The difference from the above-mentioned examples is that, please refer to Figure 3 - Figure 6The internal measuring mechanism 4 comprises a central fixed rod 41 fixedly installed in the interior of the device body 1, a horizontal support block 42 fixedly installed outside the central fixed rod 41, a fixed rod gear 43 rotatably installed outside the central fixed rod 41, an internal adjusting sliding groove 44 formed in the interior of the horizontal support block 42, an internal expansion slot 45 slidably installed on the top of the horizontal support block 42, an expansion slot spring 46 installed in the interior of the adjusting sliding groove 44, an internal detection sliding block 47 slidably installed in the interior of the internal expansion slot 45, an internal detection head 48 fixedly installed on the top of the internal detection sliding block 47, an internal transmission connecting chain 49 fixedly connected to one side of the internal detection sliding block 47, a vertical lifting sleeve 410 fixedly installed on the top of the horizontal support block 42, an internal transmission screw 411 rotatably installed on the top of the central fixed rod 41, and a screw gear 412 fixedly installed outside the internal transmission screw 411.

[0056] The screw gear 412 and the central transmission gear 37 are in transmission connection through the fixed rod gear 43.

[0057] The bottom of the central fixed rod 41 is fixedly installed in the interior of the device body 1, the horizontal support block 42 and the fixed rod gear 43 are installed outside the central fixed rod 41, the top of the central fixed rod 41 is in rotary connection with the internal transmission screw 411, and the central fixed rod 41 passes through the center of the rotating disc connecting sleeve 33;

[0058] One end of the expansion slot spring 46 is connected to the bottom of the internal expansion slot 45, the other end of the expansion slot spring 46 is fixedly connected in the interior of the internal adjusting sliding groove 44, and the bottom of the internal expansion slot 45 is attached to the top of the horizontal support block 42.

[0059] The internal transmission clamping block 413 is slidably installed in the interior of the vertical lifting sleeve 410 through the internal transmission screw 411;

[0060] The interior of the vertical lifting sleeve 410 is formed with a sliding groove with an outline attached to the exterior of the internal transmission clamping block 413, and the screw gear 412 is installed between the horizontal support block 42 and the vertical lifting sleeve 410.

[0061] When the shell carrying turntable 35 is positively rotated, the screw gear 412 can be driven to rotate positively by the central transmission gear 37 and the fixed rod gear 43, when the screw gear 412 rotates positively, the internal transmission screw rod 411 can be driven to rotate positively at the top of the central fixed rod 41, when the internal transmission screw rod 411 rotates positively, the internal transmission clamping block 413 can be driven to move upwards inside the vertical lifting sleeve 410, when the internal transmission clamping block 413 moves upwards, the internal detection slider 47 can be pulled from the initial position to move along the internal expansion slot 45, the horizontal support block 42 and the vertical lifting sleeve 410 by the internal transmission connecting chain 49 (the internal transmission connecting chain 49 is a chain link, chain structure and three-dimensional flexible actuator chain structure of Chinese patent CN110742776B), during the movement process, the internal detection slider 47 first moves horizontally along the horizontal support block 42, and when the internal detection slider 47 moves, the expansion slot spring 46 drives the internal expansion slot 45 to move towards the horizontal support block 42, then the internal detection slider 47 moves vertically upwards along the vertical lifting sleeve 410 after passing through the curved part of the horizontal support block 42, the internal detection slider 47 cooperates with the external measuring mechanism 5 to measure the thickness of the turbine engine shell during the movement, after the detection is completed, the shell carrying turntable 35 is reversely rotated, when the shell carrying turntable 35 reversely rotates, the internal transmission screw rod 411 can be driven to reversely rotate, when the internal transmission screw rod 411 reversely rotates, the internal transmission clamping block 413 can be driven to move downwards inside the vertical lifting sleeve 410, when the internal transmission clamping block 413 moves downwards, the internal detection slider 47 can be driven to move along the vertical lifting sleeve 410, the horizontal support block 42 and the internal expansion slot 45 by the internal transmission connecting chain 49, when the internal detection slider 47 moves to the edge of the internal expansion slot 45, continuing to move can drive the internal expansion slot 45 to move away from the horizontal support block 42 and make the expansion slot spring 46 contract, the internal detection slider 47 returns to the initial position, when the shell carrying turntable 35 drives the turbine engine shell to rotate, it can also drive the internal detection slider 47 to move and cooperate with the external measuring mechanism 5 to detect, and during the movement of the internal detection slider 47, it can automatically turn, so that the turbine engine shell in different directions can be comprehensively detected. Example four:

[0062] The difference from the above-mentioned embodiments is that, please refer to Figure 7 - Figure 10The external measuring mechanism 5 comprises a transmission turntable 51 and an external support seat 52. The transmission turntable 51 is rotatably installed on the top of the device body 1. The external support seat 52 is fixedly installed on the top of the device body 1. The top of the transmission turntable 51 is fixedly connected with an external transmission screw 53. The top of an external transmission clamping block 54 is fixedly connected with an external transmission connecting chain 55. The top of the external support seat 52 is movably installed with an external support block 56. The internal part of the external support block 56 is installed with an external expansion slot spring 57. The external support block 56 is slidably installed with an external expansion sliding slot 58. The internal part of the external expansion sliding slot 58 is slidably installed with an external detection sliding block 59. The external detection sliding block 59 is externally installed with a vertical detection head 510 and a horizontal detection head 511. The top of the external support seat 52 is provided with a limiting clamping groove 512. The external support block 56 is slidably installed with a protective sleeve 513.

[0063] The bottom of the external transmission screw 53 is fixedly connected with the top of the transmission turntable 51 through the external support seat 52.

[0064] The internal part of the external support block 56 is provided with a sliding slot matched with the external contour of the external transmission clamping block 54. The external support block 56 is rotatably installed in the limiting clamping groove 512 through the external transmission clamping block 54.

[0065] The external part of the transmission turntable 51 is in transmission connection with the external part of the shell bearing turntable 35.

[0066] The external expansion sliding slot 58 and the external support block 56 are slidably connected through the external expansion slot spring 57. The vertical detection head 510 and the horizontal detection head 511 are slidably connected with the external expansion sliding slot 58 through the external detection sliding block 59.

[0067] The protective sleeve 513 is sleeved on the external part of the external support block 56. The one side of the protective sleeve 513 is provided with an opening. The internal contour of the protective sleeve 513 is matched with the external part of the external support block 56.

[0068] When the shell carrying turntable 35 is positively rotated, the external transmission screw rod 53 can be driven to rotate positively by the transmission turntable 51. When the external transmission screw rod 53 is positively rotated, the external transmission block 54 is first driven to rotate, thereby driving the external supporting block 56 and the protective sleeve 513 to rotate. When the external supporting block 56 rotates, it can drive the external expansion chute 58 to rotate above the internal expansion groove 45. After the external expansion chute 58 rotates above the internal expansion groove 45, the external supporting block 56 cannot continue to rotate under the limitation of the limiting slot 512. At this time, the external transmission screw rod 53 continues to positively rotate, which can drive the external transmission block 54 to move upward inside the external supporting block 56. When the external transmission block 54 moves upward, it can drive the external detection slider 59 to move from the initial position to the direction of the internal measuring mechanism 4 through the external transmission connecting chain 55 (the external transmission connecting chain 55 is a chain structure in a flexible actuator chain, a chain structure for a flexible actuator, and a three-dimensional flexible actuator, which is a Chinese patent CN110742776B). When the external detection slider 59 moves to the edge of the external expansion chute 58 and continues to move, it can drive the external expansion chute 58 to slide along the external supporting block 56 and make the external expansion groove spring 57 contract. When the external detection slider 59 moves horizontally, it can measure the thickness of the horizontal part of the turbine engine shell through the vertical detection head 510 and the internal measuring mechanism 4. When the external transmission block 54 moves to the top of the external supporting block 56 inside and continues to move upward, it can drive the external supporting block 56 to move upward synchronously. When the external supporting block 56 moves upward, it can drive the external detection slider 59 to move upward. When the external detection slider 59 moves upward, it can measure the thickness of the vertical part of the turbine engine shell through the horizontal detection head 511 and the internal measuring mechanism 4. After the detection is completed, the shell carrying turntable 35 is reversely rotated, which can drive the external transmission screw rod 53 to reversely rotate, thereby driving the position of the external supporting block 56 to descend and gradually driving the external detection slider 59 to return to the initial position. Then, the external supporting block 56 is driven to rotate and is misaligned with the position of the internal expansion groove 45, so that the turbine engine shell is removed from the shell carrying turntable 35. Through the two moving ways and the vertical detection head 510 and the horizontal detection head 511 in different directions of the external detection slider 59, the internal measuring mechanism 4 and the external measuring mechanism 5 can be accurately matched to perform the thickness measurement work. Embodiment five:

[0069] A wall thickness measuring device and a method for measuring the wall thickness of a turbine engine shell, which uses a wall thickness measuring device as in embodiments one to four, includes the following steps:

[0070] In operation, first, the turbine engine shell is placed on the shell carrying turntable 35.

[0071] Then the driving motor 31 is started to drive the shell carrying turntable 35 to rotate, and the shell carrying turntable 35 can drive the turbine engine shell to rotate when rotating;

[0072] The shell carrying turntable 35 can also drive the internal transmission screw 411 and the external transmission screw 53 to rotate when rotating;

[0073] The internal transmission screw 411 and the external transmission screw 53 can drive the internal detection slider 47 and the external detection slider 59 to move horizontally first and then vertically when rotating;

[0074] The thickness of the turbine engine shell is measured by the internal detection head 48, the vertical detection head 510 and the horizontal detection head 511 cooperating with each other during the movement of the internal detection slider 47 and the external detection slider 59.

[0075] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wall thickness measuring device, comprising a device body (1), a control panel (2), and a rotating mechanism (3), wherein the control panel (2) is fixedly mounted on the top of the device body (1), and the rotating mechanism (3) is installed inside the device body (1), characterized in that: An internal measuring mechanism (4) is installed inside the main body (1) of the device, and an external measuring mechanism (5) is installed on the top of the main body (1). The rotating mechanism (3) includes a turntable connecting sleeve (33) and a housing bearing turntable (35), the housing bearing turntable (35) being rotatably mounted on the top of the device body (1) via the turntable connecting sleeve (33); The internal measuring mechanism (4) includes an internal transmission screw (411) and an internal detection slider (47). When the internal transmission screw (411) rotates, it can drive the internal detection slider (47) to move inside the internal measuring mechanism (4). The external thread of the internal transmission screw (411) is connected to an internal transmission block (413). The bottom of the internal transmission block (413) is fixedly connected to the internal detection slider (47) through an internal transmission connecting chain (49). An internal detection head (48) is installed on the outside of the internal detection slider (47). The external measuring mechanism (5) includes an external transmission screw (53) and an external detection slider (59). When the external transmission screw (53) rotates, it can drive the external detection slider (59) to move inside the external measuring mechanism (5). The external thread of the external transmission screw (53) is connected to an external transmission block (54). The top of the external transmission block (54) is fixedly connected to the external detection slider (59) through an external transmission connecting chain (55). A vertical detection head (510) and a horizontal detection head (511) are respectively installed on the outside of the external detection slider (59). When the housing bearing turntable (35) rotates, it can synchronously drive the internal transmission screw (411) and the external transmission screw (53) to rotate. When the housing bearing turntable (35) rotates, it can drive the turbine engine housing to rotate. When the internal transmission screw (411) and the external transmission screw (53) rotate, they can drive the internal detection slider (47) and the external detection slider (59) to move synchronously. When the internal detection slider (47) and the external detection slider (59) move horizontally, the thickness of the horizontal part of the turbine engine housing can be detected by the internal detection head (48) and the vertical detection head (510). When the internal detection slider (47) and the external detection slider (59) move vertically, the thickness of the vertical part of the turbine engine housing can be detected by the internal detection head (48) and the horizontal detection head (511).

2. The wall thickness measuring device according to claim 1, characterized in that: The rotating mechanism (3) includes a drive motor (31) and a turntable connecting sleeve (33). The drive motor (31) is installed inside the main body (1) of the device. The turntable connecting sleeve (33) is rotatably installed inside the main body (1) of the device. A motor gear (32) is fixedly installed at the drive end of the drive motor (31). A sleeve gear (34) is fixedly installed on the outside of the turntable connecting sleeve (33). A housing bearing turntable (35) is fixedly connected to the top of the turntable connecting sleeve (33). A housing limiting block (36) is fixedly installed on the top of the housing bearing turntable (35). A central transmission gear (37) is fixedly installed inside the housing bearing turntable (35). The drive motor (31) and the turntable connecting sleeve (33) are connected by a transmission through the meshing of a motor gear (32) and a sleeve gear (34).

3. The wall thickness measuring device according to claim 2, characterized in that: The outside of the turntable connecting sleeve (33) is rotatably connected to the main body (1) of the device. The central transmission gear (37) is installed at the center of the housing bearing turntable (35). The turntable connecting sleeve (33), the housing bearing turntable (35) and the central transmission gear (37) are all provided with cylindrical channels at their centers. Multiple housing limiting blocks (36) are installed on the top of the housing bearing turntable (35), and the multiple housing limiting blocks (36) are distributed circumferentially on the top of the housing bearing turntable (35).

4. The wall thickness measuring device according to claim 1, characterized in that: The internal measuring mechanism (4) includes a central fixing rod (41), which is fixedly installed inside the main body (1) of the device. A horizontal support block (42) is fixedly installed on the outside of the central fixing rod (41). A fixing rod gear (43) is rotatably installed on the outside of the central fixing rod (41). An internal adjusting groove (44) is provided inside the horizontal support block (42). An internal expansion groove (45) is slidably installed on the top of the horizontal support block (42). An expansion groove spring (45) is installed inside the adjusting groove (44). 6) An internal detection slider (47) is slidably installed inside the internal expansion groove (45). An internal detection head (48) is fixedly installed on the top of the internal detection slider (47). An internal transmission connecting chain (49) is fixedly connected to one side of the internal detection slider (47). A vertical lifting sleeve (410) is fixedly installed on the top of the horizontal support block (42). An internal transmission screw (411) is rotatably installed on the top of the central fixing rod (41). A screw gear (412) is fixedly installed on the outside of the internal transmission screw (411). The screw gear (412) and the center drive gear (37) are connected by a fixed rod gear (43).

5. The wall thickness measuring device according to claim 4, characterized in that: The bottom of the central fixing rod (41) is fixedly installed inside the main body (1) of the device. A horizontal support block (42) and a fixing rod gear (43) are installed on the outside of the central fixing rod (41). The top of the central fixing rod (41) is rotatably connected to the internal transmission screw (411). The central fixing rod (41) passes through the center of the turntable connecting sleeve (33). One end of the expansion slot spring (46) is connected to the bottom of the inner expansion slot (45), and the other end of the expansion slot spring (46) is fixedly connected to the inside of the inner adjusting slide (44). The bottom of the inner expansion slot (45) is in contact with the top of the horizontal support block (42).

6. The wall thickness measuring device according to claim 5, characterized in that: The internal transmission block (413) is slidably installed inside the vertical lifting sleeve (410) via the internal transmission screw (411); The vertical lifting sleeve (410) has a groove inside that fits the outline of the internal transmission block (413), and the screw gear (412) is installed between the horizontal support block (42) and the vertical lifting sleeve (410).

7. The wall thickness measuring device according to claim 1, characterized in that: The external measuring mechanism (5) includes a transmission turntable (51) and an external support base (52). The transmission turntable (51) is rotatably mounted on the top of the device body (1), and the external support base (52) is fixedly mounted on the top of the device body (1). An external transmission screw (53) is fixedly connected to the top of the transmission turntable (51), and an external transmission connecting chain (55) is fixedly connected to the top of the external transmission block (54). An external support block (56) is movably mounted on the top of the external support base (52), and the interior of the external support block (56) is... An external expansion slot spring (57) is installed. An external expansion slot (58) is slidably installed on the outside of the external support block (56). An external detection slider (59) is slidably installed inside the external expansion slot (58). A vertical detection head (510) is installed on the outside of the external detection slider (59). A horizontal detection head (511) is installed on the outside of the external detection slider (59). A limit slot (512) is opened on the top of the external support base (52). A protective sleeve (513) is slidably installed on the outside of the external support block (56). The bottom of the external transmission screw (53) passes through the external support base (52) and is fixedly connected to the top of the transmission turntable (51).

8. The wall thickness measuring device according to claim 7, characterized in that: The outer support block (56) has a groove inside that fits the outer contour of the outer transmission block (54), and the outer support block (56) is rotatably installed inside the limiting groove (512) through the outer transmission block (54). The external transmission turntable (51) is connected to the external transmission of the housing bearing turntable (35).

9. The wall thickness measuring device according to claim 8, characterized in that: The external expansion groove (58) and the external support block (56) are slidably connected by an external expansion groove spring (57), and the vertical detection head (510) and the horizontal detection head (511) are slidably connected to the external expansion groove (58) by an external detection slider (59). The protective sleeve (513) is fitted onto the outside of the outer support block (56). An opening is provided on one side of the protective sleeve (513), and the inner contour of the protective sleeve (513) fits against the outside of the outer support block (56).

10. A wall thickness measuring device and a method for measuring the wall thickness of a turbine engine casing, using a wall thickness measuring device as described in any one of claims 1-9.

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