Wall thickness measuring device and method for measuring wall thickness of turbine engine shell

Abstract

The invention 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, the wall thickness measuring device comprises a device main body, a console and a rotating mechanism, the console is fixedly installed on the top of the device main body, the rotating mechanism is installed in the device main body, and the rotating mechanism is fixedly installed on the console. And an internal measuring mechanism is mounted in the device main body. The internal detection mechanism and the external detection mechanism are arranged 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 through horizontal movement of an internal detection sliding block and an external detection sliding block; and then the thickness of the vertical part of the turbine engine shell is detected through the vertical movement of the internal detection sliding block and the external detection sliding block, and the turbine engine shell is kept in a rotating state in the detection process, so that the thickness of the turbine engine shell can be detected in all directions.

Description

Technical Field

[0001] The invention relates to the technical field of thickness measurement, and in particular to a wall thickness measuring device and a method for measuring the wall thickness of a turbine engine casing. Background Art

[0002] The capacitive thickness sensor has two parallel electrodes on both sides of the object. The capacitance difference on both sides will change with the material and thickness of the object, so that the thickness of the object can be accurately measured.

[0003] Chinese patent CN108709517B discloses an ultrasonic thickness gauge that is easy to operate. By arranging an exhaust pipe and a suction cup around the sensor and installing a relatively flexible probe, the probe can be adsorbed on the surface of an object and then moved during operation.

[0004] In the above patents and prior art, the diameter of the turbine engine casing at the turbine blades is much larger than the diameter at the rotating shaft, resulting in the internal structure of the turbine engine casing not only being complex but also having some casings that are perpendicular to each other. Traditional thickness measuring equipment has low detection accuracy for casings of complex structures and is difficult to detect the vertical part of the turbine engine casing. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a wall thickness measuring device and a method for measuring the wall thickness of a turbine engine casing.

[0006] A wall thickness measuring device and a method for measuring the wall thickness of a turbine engine casing, comprising a device body, a control console and a rotating mechanism, wherein the control console is fixedly mounted on the top of the device body, the rotating mechanism is mounted inside the device body, an internal measuring mechanism is mounted inside the device body, and an external measuring mechanism is mounted on the top of the device body; The rotating mechanism comprises a turntable connecting sleeve and a housing-carrying turntable, and the housing-carrying turntable is rotatably mounted on the top of the device body through the turntable connecting sleeve; The internal measuring mechanism comprises an internal transmission screw and an internal detection slider. When the internal transmission screw rotates, it can drive the internal detection slider to move inside the internal measuring mechanism. The external thread of the internal transmission screw is connected with an internal transmission block. The bottom of the internal transmission block is fixedly connected with the internal detection slider through an internal transmission connection chain. The external part of the internal detection slider is equipped with an internal detection head. The external measuring mechanism comprises an external transmission screw and an external detection slider. When the external transmission screw rotates, it can drive the external detection slider to move inside the external measuring mechanism. The external thread of the external transmission screw is connected with an external transmission block. The top of the external transmission block is fixedly connected with the external detection slider through an external transmission connection chain. The external detection slider is respectively equipped with a vertical detection head and a horizontal detection head. When the shell carrying turntable rotates, it can synchronously drive the internal transmission screw and the external transmission screw to rotate. When the shell carrying turntable rotates, it can drive the turbine engine shell to rotate. When the internal transmission screw and the external transmission screw rotate, they can drive the internal detection slider and the external detection slider to move synchronously. When the internal detection slider and the external detection slider move horizontally, the thickness of the horizontal part of the turbine engine shell can be detected by the internal detection head and the vertical detection head. When the internal detection slider and the external detection slider move vertically, the thickness of the vertical part of the turbine engine shell can be detected by the internal detection head and the horizontal detection head.

[0007] 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 housing-bearing turntable is fixedly connected to the top of the turntable connecting sleeve, a housing-bearing turntable is fixedly installed on the top of the turntable, and a central transmission gear is fixedly installed inside the turntable; The driving motor and the turntable connecting sleeve are connected in transmission through the meshing of the motor gear and the sleeve gear.

[0008] Preferably, the outside of the turntable connecting sleeve is rotatably connected to the device body, the central transmission gear is installed at the center of the housing-bearing turntable, and the center of the turntable connecting sleeve, the housing-bearing turntable and the central transmission gear are all provided with a cylindrical channel; A plurality of shell limiting blocks are installed on the top of the shell supporting turntable, and the plurality of shell limiting blocks are distributed on the circumference of the top of the shell supporting turntable.

[0009] Preferably, the internal measuring mechanism comprises a central fixing rod, the central fixing rod is fixedly installed inside the device body, a horizontal support block is fixedly installed outside the central fixing rod, a fixing rod gear is rotatably installed outside the central fixing rod, an internal adjusting slot is opened inside the horizontal support block, an internal expansion slot is slidably installed on the top of the horizontal support block, an expansion slot spring is installed inside the adjusting slot, an internal detection slider is slidably installed inside the internal expansion slot, an internal detection head is fixedly installed on the top of the internal detection slider, an internal transmission connecting chain is fixedly connected to one side of the internal detection slider, a vertical lifting sleeve is fixedly installed on the top of the horizontal support block, an internal transmission screw is rotatably installed on the top of the central fixing rod, and a screw gear is fixedly installed on the outside of the internal transmission screw; The screw gear and the central transmission gear are connected through a fixed rod gear transmission.

[0010] Preferably, the bottom of the central fixing rod is fixedly installed inside the device body, a horizontal support block and a fixing rod gear are installed outside the central fixing rod, the top of the central fixing rod is rotatably connected to the internal transmission screw, and the central fixing rod passes through the center of the turntable connecting sleeve; One end of the expansion slot spring is connected to the bottom of the internal expansion slot, and the other end of the expansion slot spring is fixedly connected to the inside of the internal adjustment slide slot. The bottom of the internal expansion slot fits with the top of the horizontal support block.

[0011] Preferably, the internal transmission block is slidably installed inside the vertical lifting sleeve via an internal transmission screw; The interior of the vertical lifting sleeve is provided with a slide groove whose contour matches the exterior of the internal transmission block, and the screw gear is installed between the horizontal support block and the vertical lifting sleeve.

[0012] Preferably, the external measuring mechanism comprises a transmission turntable and an external support seat, the transmission turntable is rotatably mounted on the top of the device body, the external support seat is fixedly mounted on the top of the device body, the top of the transmission turntable is fixedly connected with an external transmission screw, the top of the external transmission block is fixedly connected with an external transmission connecting chain, the top of the external support seat is movably mounted with an external support block, the interior of the external support block is mounted with an external expansion groove spring, the exterior of the external support block is slidably mounted with an external expansion slide groove, the interior of the external expansion slide groove is slidably mounted with an external detection slider, the exterior of the external detection slider is mounted with a vertical detection head, the exterior of the external detection slider is mounted with a horizontal detection head, the top of the external support seat is provided with a limiting slot, and the exterior of the external support block is slidably mounted with a protective sleeve; The bottom of the external transmission screw rod passes through the external support seat and is fixedly connected with the top of the transmission turntable.

[0013] Preferably, a slide groove that fits the outer contour of the external transmission block is provided inside the external support block, and the external support block is rotatably installed inside the limit groove through the external transmission block; The outside of the transmission turntable is in transmission connection with the outside of the shell bearing turntable.

[0014] Preferably, the external expansion slot and the external support block are slidably connected via an external expansion slot spring, and the vertical detection head and the horizontal detection head are slidably connected to the external expansion slot via an external detection slider; The protective sleeve is sleeved on the outside of the external support block, one side of the protective sleeve is provided with an opening, and the inner contour of the protective sleeve is in contact with the outer part of the external support block.

[0015] Compared with the prior art, the present invention provides a wall thickness measuring device and a method for measuring the wall thickness of a turbine engine casing, which have the following beneficial effects: 1. This 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 casing respectively, and when detecting the thickness of the turbine engine casing, the horizontal part of the turbine engine casing can be detected by horizontally moving the internal detection slider and the external detection slider, and then the vertical part of the turbine engine casing can be detected by vertically moving the internal detection slider and the external detection slider. During the detection process, the turbine engine casing keeps rotating, so that the thickness of the turbine engine casing can be detected in all directions.

[0016] 2. When measuring the turbine engine casing, this wall thickness measuring device drives the internal transmission screw and the external transmission screw to rotate synchronously through a casing-carrying turntable, which can make the internal detection slider and the external detection slider move synchronously, so that the positions of the internal detection head, the horizontal detection head and the vertical detection head remain unchanged, making the detection result more accurate.

[0017] 3. In the wall thickness measuring device, during operation, the internal transmission screw and the external transmission screw drive the internal detection slider and the external detection slider to move through the internal transmission block and the external transmission block, and are fixed in the moving path, so that the internal detection slider and the external detection slider can always keep moving at a uniform speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a wall thickness measuring device of the present invention; Figure 2 A schematic diagram of the internal structure of a wall thickness measuring device of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of a housing carrying a rotating disk of a wall thickness measuring device of the present invention; Figure 4 A schematic diagram of the internal structure of a housing carrying a rotating disk of a wall thickness measuring device of the present invention; Figure 5 A schematic diagram of the internal structure of an internal measuring mechanism of a wall thickness measuring device of the present invention; Figure 6 It is a schematic cross-sectional structure diagram of a horizontal support block of a wall thickness measuring device of the present invention; Figure 7 A schematic diagram of the three-dimensional structure of an external measuring mechanism of a wall thickness measuring device of the present invention Figure 1 ; Figure 8 A schematic diagram of the three-dimensional structure of an external measuring mechanism of a wall thickness measuring device of the present invention Figure 2 ; Fig. 9 A schematic diagram of the internal structure of an external measuring mechanism of a wall thickness measuring device of the present invention; Fig.10 The figure is a schematic cross-sectional structural diagram of an external support block of a wall thickness measuring device of the present invention.

[0019] In the figure: 1. Device body; 2. Control panel; 3. Rotating mechanism; 31. Driving motor; 32. Motor gear; 33. Turntable connecting sleeve; 34. Sleeve gear; 35. Shell bearing turntable; 36. Shell limit block; 37. Center transmission gear; 4. Internal measuring mechanism; 41. Center fixing rod; 42. Horizontal support block; 43. Fixing rod gear; 44. Internal adjustment slide; 45. Internal expansion slot; 46. Expansion slot spring; 47. Internal detection slider; 48. Internal detection head; 49. Internal transmission connection Chain; 410, vertical lifting sleeve; 411, internal transmission screw; 412, screw gear; 413, internal transmission block; 5, external measuring mechanism; 51, transmission turntable; 52, external support seat; 53, external transmission screw; 54, external transmission block; 55, external transmission connecting chain; 56, external support block; 57, external expansion slot spring; 58, external expansion slide; 59, external detection slide; 510, vertical detection head; 511, horizontal detection head; 512, limit slot; 513, protective sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a wall thickness measuring device and a method for measuring the wall thickness of a turbine engine casing. Embodiment 1:

[0022] See also Figure 1 - Fig.10 A wall thickness measuring device comprises 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, the rotating mechanism 3 is mounted inside the device body 1, an internal measuring mechanism 4 is mounted inside the device body 1, and an external measuring mechanism 5 is mounted on the top of the device body 1; The rotating mechanism 3 includes a turntable connecting sleeve 33 and a housing-carrying turntable 35, and the housing-carrying turntable 35 is rotatably mounted on the top of the device body 1 through 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 with an internal transmission block 413. The bottom of the internal transmission block 413 is fixedly connected with the internal detection slider 47 through an internal transmission connecting chain 49. The external of the internal detection slider 47 is installed with an internal detection head 48. 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 with an external transmission block 54. The top of the external transmission block 54 is fixedly connected with the external detection slider 59 through an external transmission connecting chain 55. The external detection slider 59 is respectively installed with a vertical detection head 510 and a horizontal detection head 511. When the shell supporting turntable 35 rotates, it can synchronously drive the internal transmission screw 411 and the external transmission screw 53 to rotate. When the shell supporting turntable 35 rotates, it can drive the turbine engine shell to rotate. When the internal transmission screw 411 and the external transmission screw 53 rotate synchronously, 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 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 vertically, 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.

[0023] During operation, the turbine engine casing to be inspected is first placed on the casing carrying turntable 35. When the turbine engine casing is started to be inspected, the rotating mechanism 3 can drive the casing carrying turntable 35 to rotate, thereby driving the turbine engine casing on the casing carrying turntable 35 to rotate synchronously. When the casing carrying turntable 35 rotates, the internal transmission screw 411 and the external transmission screw 53 can also be driven to rotate. When the internal transmission screw 411 rotates, the internal detection slider 47 can be driven to move horizontally and then vertically along the outside of the internal measuring mechanism 4 from the initial position. At the same time, the rotation of the external transmission screw 53 can also drive the external detection slider 59 to move horizontally and then vertically. When moving horizontally, the internal detection head 48 and the vertical detection head 510 form two parallel electrodes to detect the thickness of the turbine engine casing (the two parallel electrodes and the turbine engine casing form a capacitor, and the capacitance value of the capacitor will also change when the thickness of the turbine engine casing 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 casing, and during the detection process, the turbine engine casing remains in a rotating state, and the external expansion slot spring 57 and the external detection slider 59 remain in a moving state, so that the thickness of the turbine engine casing can be fully detected. Embodiment 2:

[0024] The difference from the above embodiment is that, please refer to Figure 2 - Figure 4 The rotating mechanism 3 includes a driving motor 31 and a turntable connecting sleeve 33. The driving motor 31 is installed inside the device body 1. The turntable connecting sleeve 33 is rotatably installed inside the device body 1. A motor gear 32 is fixedly installed on the driving end of the driving motor 31. A sleeve gear 34 is fixedly installed on the outside of the turntable connecting sleeve 33. A shell-bearing turntable 35 is fixedly connected to the top of the turntable connecting sleeve 33. A shell limit block 36 is fixedly installed on the top of the shell-bearing turntable 35. A central transmission gear 37 is fixedly installed inside the shell-bearing turntable 35. The driving motor 31 and the turntable connecting sleeve 33 are connected to each other through gear meshing between the motor gear 32 and the sleeve gear 34 .

[0025] The outer portion of the turntable connecting sleeve 33 is rotatably connected to the device body 1, and the central transmission gear 37 is installed at the center of the housing-carrying turntable 35. The centers of the turntable connecting sleeve 33, the housing-carrying turntable 35 and the central transmission gear 37 are all provided with cylindrical channels; A plurality of housing limit blocks 36 are installed on the top of the housing support turntable 35 , and the plurality of housing limit blocks 36 are distributed on the top circumference of the housing support turntable 35 .

[0026] During operation, the turbine engine casing is first placed on the casing carrying turntable 35, and the casing limit block 36 on the casing carrying turntable 35 can limit the position of the turbine engine casing, so that the center of the turbine engine casing and the center of the casing carrying turntable 35 are on the same axis. When the drive motor 31 is started, it can drive the motor gear 32 to rotate. When the motor gear 32 rotates, it can drive the turntable connecting sleeve 33 to rotate inside the device body 1 through the sleeve gear 34. When the turntable connecting sleeve 33 rotates, it can drive the casing carrying turntable 35 to rotate synchronously. When the casing carrying turntable 35 rotates, it can drive the turbine engine casing to rotate. When the casing carrying turntable 35 rotates, it can also drive the internal detection slider 47 and the external detection slider 59 on the internal measuring mechanism 4 and the external measuring mechanism 5 to move for detection operations, so that the turbine engine can maintain a uniform rotation during the detection process, so that the casing of the turbine engine can be comprehensively measured in thickness. Embodiment three:

[0027] The difference from the above embodiment is that, please refer to Figure 3 - Figure 6 The internal measuring mechanism 4 includes a central fixed rod 41, which is fixedly installed inside the device body 1, a horizontal support block 42 is fixedly installed outside the central fixed rod 41, a fixed rod gear 43 is rotatably installed outside the central fixed rod 41, an internal adjustment slide groove 44 is opened 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 46 is installed inside the adjustment slide groove 44, 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 connection 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 fixed rod 41, and a screw gear 412 is fixedly installed outside the internal transmission screw 411; The screw gear 412 and the central transmission gear 37 are connected to each other through the fixed rod gear 43 .

[0028] The bottom of the central fixed rod 41 is fixedly installed inside the device body 1, and a horizontal support block 42 and a fixed rod gear 43 are installed outside the central fixed rod 41. The top of the central fixed rod 41 is rotatably connected to the internal transmission screw 411, and the central fixed 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 internal expansion slot 45 , and the other end of the expansion slot spring 46 is fixedly connected to the inside of the internal adjustment slide slot 44 . The bottom of the internal expansion slot 45 fits with the top of the horizontal support block 42 .

[0029] The internal transmission block 413 is slidably installed inside the vertical lifting sleeve 410 through the internal transmission screw 411; The interior of the vertical lifting sleeve 410 is provided with a slide groove whose contour matches the exterior 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 .

[0030] When the housing carrying turntable 35 rotates forward, the screw gear 412 can be driven to rotate forward through the central transmission gear 37 and the fixed rod gear 43. When the screw gear 412 rotates forward, the internal transmission screw 411 can be driven to rotate forward at the top of the central fixed rod 41. When the internal transmission screw 411 rotates forward, the internal transmission block 413 can be driven to move upward inside the vertical lifting sleeve 410. When the internal transmission block 413 moves upward, it can be driven through the internal transmission connecting chain 49 (the internal transmission connecting chain 49 is a Chinese patent CN110742776B A flexible actuator uses a chain link, a chain structure, and a chain structure in a three-dimensional flexible actuator to pull an internal detection slider 47 from an initial position to move along an internal expansion slot 45, a horizontal support block 42, and a vertical lifting sleeve 410. During the movement, 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 toward the horizontal support block 42, and then the internal detection slider 47 passes through the curved portion of the horizontal support block 42 and moves vertically upward along the vertical lifting sleeve 410. When moving, the internal detection slider 47 cooperates with the external measuring mechanism 5 through the internal detection head 48 to measure the thickness of the turbine engine casing. After the detection is completed, the casing bearing turntable 35 is rotated in the opposite direction. When the casing bearing turntable 35 rotates in the opposite direction, it can drive the internal transmission screw 411 to rotate in the opposite direction. When the internal transmission screw 411 rotates in the opposite direction, it can drive the internal transmission block 413 to move downward inside the vertical lifting sleeve 410. When the internal transmission block 413 moves downward, it can drive the internal detection slider 47 to move along the vertical lifting sleeve 410, the horizontal support block 42 and the internal expansion groove 45 through the internal transmission connecting chain 49. When the internal detection slider 47 moves to the edge of the internal expansion groove 45, it continues to move and can drive the internal expansion groove 45 to move away from the horizontal support block 42 and cause the expansion groove spring 46 to contract. The internal detection slider 47 returns to its initial position. When the shell supporting 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 perform detection operations. In addition, the internal detection slider 47 can automatically turn during the movement of the internal detection slider, thereby being able to perform comprehensive detection of the turbine engine shell in different directions. Embodiment 4:

[0031] The difference from the above embodiment is that, please refer to Figure 7 - Fig.10The external measuring mechanism 5 includes a transmission turntable 51 and an external support seat 52. The transmission turntable 51 is rotatably mounted on the top of the device body 1, and the external support seat 52 is fixedly mounted on the top of the device body 1. The top of the transmission turntable 51 is fixedly connected with an external transmission screw 53, and the top of the external transmission block 54 is fixedly connected with an external transmission connecting chain 55. The top of the external support seat 52 is movably mounted with an external support block 56, and the interior of the external support block 56 is mounted with an external expansion groove spring 57. The exterior of the external support block 56 is slidably mounted with an external expansion slide groove 58, and the interior of the external expansion slide groove 58 is slidably mounted with an external detection slider 59. A vertical detection head 510 is mounted on the exterior of the external detection slider 59, and a horizontal detection head 511 is mounted on the exterior of the external detection slider 59. A limit groove 512 is provided on the top of the external support seat 52, and a protective sleeve 513 is slidably mounted on the exterior of the external support block 56. The bottom of the external transmission screw rod 53 passes through the external support seat 52 and is fixedly connected to the top of the transmission turntable 51 .

[0032] The external support block 56 has a slide groove inside that matches the outer contour of the external transmission block 54. The external support block 56 is rotatably installed in the limiting groove 512 through the external transmission block 54. The outside of the transmission turntable 51 is in transmission connection with the outside of the housing bearing turntable 35 .

[0033] The external expansion slot 58 and the external support block 56 are slidably connected via the external expansion slot spring 57, and the vertical detection head 510 and the horizontal detection head 511 are slidably connected to the external expansion slot 58 via the external detection slider 59; The protective sleeve 513 is sleeved on the outside of the external support block 56 . An opening is provided on one side of the protective sleeve 513 . The inner contour of the protective sleeve 513 fits with the outer portion of the external support block 56 .

[0034] When the housing bearing turntable 35 rotates forward, the transmission turntable 51 can drive the external transmission screw 53 to rotate forward. When the external transmission screw 53 rotates forward, the external transmission block 54 is first used to drive the external support block 56 and the protective sleeve 513 to rotate, so that when the external support block 56 rotates, the external expansion slot 58 can be driven to rotate above the internal expansion slot 45. After the external expansion slot 58 rotates to the top of the internal expansion slot 45, the external support block 56 cannot continue to rotate under the restriction of the limit slot 512. At this time, the external transmission screw 53 continues to rotate forward, which can drive the external transmission block 54 to move upward inside the external support block 56. When the external transmission block 54 moves upward, it can be driven by the external transmission connecting chain 55 (the external transmission connecting chain 55 is Chinese patent CN110742776B A flexible actuator (chain link, chain structure and chain structure in a three-dimensional flexible actuator) drives an external detection slider 59 to move from an initial position toward an internal measuring mechanism 4. When the external detection slider 59 moves to the edge of an external expansion slot 58 and continues to move, it can drive the external expansion slot 58 to slide along an external support block 56 and contract the external expansion slot spring 57. When the external detection slider 59 moves horizontally, the thickness of the horizontal part of the turbine engine casing can be measured through the vertical detection head 510 and the internal measuring mechanism 4. When the external transmission block 54 moves to the top of the internal part of the external support block 56 and continues to move upward, it can drive the external support block 56 to move upward synchronously. When the external support block 56 moves upward, it can drive the external detection slider 59 Move upward. When the external detection slider 59 moves upward, the thickness of the vertical part of the turbine engine casing can be measured through the cooperation of the horizontal detection head 511 and the internal measuring mechanism 4. After the detection is completed, the reverse rotation of the casing carrying turntable 35 can drive the external transmission screw 53 to rotate in the opposite direction, thereby driving the position of the external support block 56 to drop, and gradually driving the external detection slider 59 back to the initial position, and then driving the external support block 56 to rotate and stagger the position of the internal expansion groove 45 to remove the turbine engine casing from the casing carrying turntable 35. By adopting two moving modes and vertical detection heads 510 and horizontal detection heads 511 in different directions for the external detection slider 59, the internal measuring mechanism 4 and the external measuring mechanism 5 can be accurately coordinated to perform thickness measurement operations. Embodiment five:

[0035] 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 Embodiments 1 to 4, comprising the following steps: During operation, the turbine engine casing is first placed on the casing carrying turntable 35; Then, the driving motor 31 is started to drive the housing bearing turntable 35 to rotate. When the housing bearing turntable 35 rotates, it can drive the turbine engine housing to rotate; When the housing carrying turntable 35 rotates, it can also drive the internal transmission screw 411 and the external transmission screw 53 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 horizontally first and then vertically; During the movement of the internal detection slider 47 and the external detection slider 59 , the thickness of the turbine engine casing is measured by the cooperation of the internal detection head 48 , the vertical detection head 510 and the horizontal detection head 511 .

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 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 mounted inside the device body (1), characterized in that: An internal measuring mechanism (4) is installed inside the device body (1), and an external measuring mechanism (5) is installed on the top of the device body (1); The rotating mechanism (3) comprises a turntable connecting sleeve (33) and a housing-carrying turntable (35); the housing-carrying turntable (35) is rotatably mounted on the top of the device body (1) via the turntable connecting sleeve (33); The internal measuring mechanism (4) comprises 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) via an internal transmission connection chain (49); and the external part of the internal detection slider (47) is provided with an internal detection head (48); The external measuring mechanism (5) comprises 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) via an external transmission connection chain (55); and the external part of the external detection slider (59) is respectively provided with a vertical detection head (510) and a horizontal detection head (511); When the housing supporting turntable (35) rotates, it can synchronously drive the internal transmission screw (411) and the external transmission screw (53) to rotate. When the housing supporting 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. A wall thickness measuring device according to claim 1, characterized in that: The rotating mechanism (3) comprises a driving motor (31) and a turntable connecting sleeve (33); the driving motor (31) is mounted inside the device body (1); the turntable connecting sleeve (33) is rotatably mounted inside the device body (1); a motor gear (32) is fixedly mounted on the driving end of the driving motor (31); a sleeve gear (34) is fixedly mounted on the outside of the turntable connecting sleeve (33); a housing-carrying turntable (35) is fixedly connected to the top of the turntable connecting sleeve (33); a housing-carrying turntable (35) is fixedly mounted on the top of the turntable connecting sleeve (33); and a central transmission gear (37) is fixedly mounted inside the turntable supporting the housing (35); The driving motor (31) and the rotating disk connecting sleeve (33) are connected in transmission via meshing of the motor gear (32) and the sleeve gear (34).

3. A wall thickness measuring device according to claim 2, characterized in that: The exterior of the turntable connecting sleeve (33) is rotatably connected to the device body (1); the central transmission gear (37) is mounted at the center of the housing-carrying turntable (35); and the centers of the turntable connecting sleeve (33), the housing-carrying turntable (35) and the central transmission gear (37) are all provided with cylindrical channels; A plurality of shell limit blocks (36) are installed on the top of the shell supporting turntable (35), and the plurality of shell limit blocks (36) are distributed around the top circumference of the shell supporting turntable (35).

4. A wall thickness measuring device according to claim 1, characterized in that: The internal measuring mechanism (4) comprises a central fixing rod (41), the central fixing rod (41) being fixedly mounted inside the device body (1), a horizontal support block (42) being fixedly mounted outside the central fixing rod (41), a fixing rod gear (43) being rotatably mounted outside the central fixing rod (41), an internal adjustment slot (44) being provided inside the horizontal support block (42), an internal expansion slot (45) being slidably mounted on the top of the horizontal support block (42), and an expansion slot spring (46) being mounted inside the adjustment slot (44). 6) An internal detection slider (47) is slidably mounted inside the internal expansion groove (45), an internal detection head (48) is fixedly mounted on the top of the internal detection slider (47), an internal transmission connection chain (49) is fixedly connected to one side of the internal detection slider (47), a vertical lifting sleeve (410) is fixedly mounted on the top of the horizontal support block (42), an internal transmission screw (411) is rotatably mounted on the top of the central fixed rod (41), and a screw gear (412) is fixedly mounted on the outside of the internal transmission screw (411); The screw gear (412) and the central transmission gear (37) are in transmission connection via a fixed rod gear (43).

5. A wall thickness measuring device according to claim 4, characterized in that: The bottom of the central fixing rod (41) is fixedly mounted inside the device body (1); a horizontal support block (42) and a fixing rod gear (43) are mounted outside the central fixing rod (41); the top of the central fixing rod (41) is rotatably connected to an internal transmission screw rod (411); and 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 internal expansion slot (45), and the other end of the expansion slot spring (46) is fixedly connected to the inside of the internal adjustment slide slot (44). The bottom of the internal expansion slot (45) is in contact with the top of the horizontal support block (42).

6. A wall thickness measuring device according to claim 5, characterized in that: The internal transmission block (413) is slidably mounted inside the vertical lifting sleeve (410) via the internal transmission screw (411); The vertical lifting sleeve (410) is provided with a sliding groove whose contour matches the exterior 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. A wall thickness measuring device according to claim 1, characterized in that: The external measuring mechanism (5) comprises a transmission turntable (51) and an external support seat (52); the transmission turntable (51) is rotatably mounted on the top of the device body (1); the external support seat (52) is fixedly mounted on the top of the device body (1); the top of the transmission turntable (51) is fixedly connected to an external transmission screw rod (53); the top of the external transmission block (54) is fixedly connected to an external transmission connecting chain (55); the top of the external support seat (52) is movably mounted to an external support block (56); the inside 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 provided on the top of the external support seat (52), and a protective sleeve (513) is slidably installed on the outside of the external support block (56); The bottom of the external transmission screw rod (53) passes through the external support seat (52) and is fixedly connected to the top of the transmission rotating disk (51).

8. A wall thickness measuring device according to claim 7, characterized in that: The external support block (56) is provided with a slide groove that fits the outer contour of the external transmission block (54) inside, and the external support block (56) is rotatably mounted inside the limit groove (512) through the external transmission block (54); The exterior of the transmission turntable (51) is in transmission connection with the exterior of the housing bearing turntable (35).

9. A wall thickness measuring device according to claim 8, characterized in that: The external expansion slot (58) and the external support block (56) are slidably connected via an external expansion slot spring (57), and the vertical detection head (510) and the horizontal detection head (511) are slidably connected to the external expansion slot (58) via an external detection slider (59); The protective sleeve (513) is sleeved on the outside of the external support block (56); an opening is provided on one side of the protective sleeve (513); and the internal contour of the protective sleeve (513) fits the outside of the external 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 claimed in any one of claims 1 to 9.

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