Turbine blade detection device

Abstract

The utility model belongs to the technical field of steam turbine detection equipment, and discloses a steam turbine blade detection device which comprises a bottom plate, a sliding groove is formed in the top of the bottom plate, a movable plate is movably connected in the sliding groove, a circular ring is fixedly installed at the bottom of the other end of the movable plate, and a movable block is movably connected in the circular ring in a sleeved mode. The bottom of the movable block is fixedly connected with an ultrasonic guided wave assembly. Through the arrangement of the rotating motor, the first gear, the second gear, the round rod and the connecting rod, when the rotating motor operates, the rotating shaft drives the first gear to rotate, then the first gear is meshed with the second gear and drives the round rod and the connecting rod to rotate, and therefore the ultrasonic guided wave assembly is driven to rotate with the round rod as the axis; the purpose of 360-degree blade detection of the ultrasonic guided wave assembly is achieved, the problem that the detection range of a detection device is limited is solved, and the application range of the device is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of steam turbine detection equipment, in particular to a steam turbine blade detection device. Background Art

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam power device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and is then sprayed onto the blades, causing the rotor with the blade rows to rotate and perform work externally.

[0003] During the operation of the steam turbine, cracks may appear on the blades, and a detection device is needed to detect cracks in the blades. Although the existing crack detection devices can achieve basic crack detection in actual use, the existing crack detection devices generally do not have the function of 360-degree detection, which results in a limited detection range of the detection device and is difficult to meet actual needs. Therefore, it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems. The utility model provides a steam turbine blade detection device, which has the advantage of 360-degree detection.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steam turbine blade detection device, comprising a base plate, a slide groove is provided on the top of the base plate, a movable plate is movably connected inside the slide groove, a circular ring is fixedly installed on the bottom of the other end of the movable plate, a movable block is movably sleeved inside the circular ring, an ultrasonic waveguide component is fixedly connected to the bottom of the movable block, a rotating motor is fixedly connected to the top of the inner cavity of the movable plate, a rotating shaft is fixedly sleeved on the other end of the output shaft of the rotating motor, a first gear is fixedly sleeved on the outer surface of the rotating shaft, a second gear is meshingly connected on the outer surface of the first gear, a round rod is fixedly sleeved on the inside of the second gear, a connecting rod located on the left side of the second gear is fixedly sleeved on the outer surface of the round rod, and the other end of the connecting rod is fixedly connected to the right side of the ultrasonic waveguide component.

[0006] As a preferred technical solution of the utility model, a support rod is movably sleeved on the outer surface of the round rod, the left side of the support rod is movably connected to the right side of the second gear, and the top of the support rod is fixedly connected to the top of the inner cavity of the movable plate.

[0007] As a preferred technical solution of the utility model, a drive motor is fixedly connected to the right side of the top of the base plate, a lead screw is fixedly sleeved on the other end of the output shaft of the drive motor, and the outer surface of the lead screw is threadedly sleeved with the inner surface of the movable plate.

[0008] As a preferred technical solution of the utility model, a fixing block located on the left side of the movable plate is fixedly installed on the top of the base plate, and the inner surface of the fixing block is movably sleeved with the outer surface of the lead screw.

[0009] As a preferred technical solution of the utility model, the top of the base plate is fixedly connected to a mounting plate located on the left side of the ring, and the inner surface of the mounting plate is movably connected to a clamping plate. There are two clamping plates, and the two clamping plates have the same size.

[0010] As a preferred technical solution of the utility model, the top of the base plate is fixedly connected to a transmission motor located on the left side of the mounting plate, the other end of the output shaft of the transmission motor is fixedly sleeved with a transmission shaft, the outer surface of the transmission shaft is fixedly sleeved with a rotating block, the front side of the rotating block is hinged with a rotating rod, there are two rotating rods, and the other ends of the two rotating rods are respectively hinged to two clamping plates.

[0011] As a preferred technical solution of the utility model, a limiting rod is fixedly installed inside the mounting plate, and the outer surface of the limiting rod is movably connected to the inner surfaces of the two clamping plates.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model is provided with a rotating motor, a first gear, a second gear, a round rod and a connecting rod. When the rotating motor is running, the rotating shaft will drive the first gear to rotate, and then the first gear and the second gear will mesh and drive the round rod and the connecting rod to rotate, thereby driving the ultrasonic guided wave assembly to rotate with the round rod as the axis, thereby achieving the purpose of the ultrasonic guided wave assembly to detect blades at 360 degrees, solving the problem of limited detection range of the detection device, and improving the application scope of the device.

[0014] 2. The utility model sets a clamping plate, a transmission motor, a transmission shaft, a rotating block and a rotating rod. When the transmission motor is running, the transmission shaft will drive the rotating block to rotate, and then the two rotating rods will rotate to drive the two clamping plates to move away from each other, thereby achieving the purpose of automatically clamping and fixing the turbine blades, solving the problem of relying on manual use of clamps to fix, and improving the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic cross-sectional structural diagram of the first gear of the utility model;

[0018] Figure 4 This is a schematic diagram of the circular ring structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the plywood of the utility model;

[0020] Figure 6 It is a schematic cross-sectional structural diagram of the rotating rod of the utility model.

[0021] In the figure: 1. bottom plate; 2. slide groove; 3. movable plate; 4. ring; 5. movable block; 6. ultrasonic waveguide assembly; 7. rotating motor; 8. rotating shaft; 9. first gear; 10. second gear; 11. round rod; 12. connecting rod; 13. supporting rod; 14. driving motor; 15. lead screw; 16. fixing block; 17. mounting plate; 18. clamping plate; 19. transmission motor; 20. transmission shaft; 21. rotating block; 22. rotating rod; 23. limiting rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 6 As shown, the utility model provides a steam turbine blade detection device, including a base plate 1, a slide groove 2 is opened on the top of the base plate 1, a movable plate 3 is movably connected inside the slide groove 2, a circular ring 4 is fixedly installed on the bottom of the other end of the movable plate 3, a movable block 5 is movably sleeved inside the circular ring 4, an ultrasonic waveguide component 6 is fixedly connected to the bottom of the movable block 5, a rotating motor 7 is fixedly connected to the top of the inner cavity of the movable plate 3, a rotating shaft 8 is fixedly sleeved on the other end of the output shaft of the rotating motor 7, a first gear 9 is fixedly sleeved on the outer surface of the rotating shaft 8, a second gear 10 is meshingly connected on the outer surface of the first gear 9, a round rod 11 is fixedly sleeved inside the second gear 10, a connecting rod 12 located on the left side of the second gear 10 is fixedly sleeved on the outer surface of the round rod 11, and the other end of the connecting rod 12 is fixedly connected to the right side of the ultrasonic waveguide component 6.

[0024] When the rotating motor 7 is running, the rotating shaft 8 will drive the first gear 9 to rotate, and then the first gear 9 will mesh with the second gear 10 and drive the round rod 11 and the connecting rod 12 to rotate, so that the ultrasonic waveguide component 6 will rotate with the round rod 11 as the axis, thereby achieving the purpose of the ultrasonic waveguide component 6 to detect the blades at 360 degrees.

[0025] The outer surface of the round rod 11 is movably sleeved with a support rod 13 , the left side of the support rod 13 is movably connected to the right side of the second gear 10 , and the top of the support rod 13 is fixedly connected to the top of the inner cavity of the movable plate 3 .

[0026] The design of the support rod 13 plays a role in supporting and stabilizing the round rod 11 as a whole.

[0027] The right side of the top of the bottom plate 1 is fixedly connected with a driving motor 14 , and the other end of the output shaft of the driving motor 14 is fixedly sleeved with a lead screw 15 , and the outer surface of the lead screw 15 is threadedly sleeved with the inner surface of the movable plate 3 .

[0028] When the driving motor 14 is running, the lead screw 15 will rotate and drive the movable plate 3 to move rightward, thereby facilitating the installation and removal of the turbine blades on the detection device.

[0029] A fixing block 16 located on the left side of the movable plate 3 is fixedly mounted on the top of the bottom plate 1 , and the inner surface of the fixing block 16 is movably sleeved with the outer surface of the lead screw 15 .

[0030] The design of the fixing block 16 plays a role in supporting the lead screw 15 , ensuring that the lead screw 15 can stably drive the movable plate 3 to move as a whole.

[0031] The top of the bottom plate 1 is fixedly connected to a mounting plate 17 located on the left side of the ring 4, and the inner surface of the mounting plate 17 is movably connected to a clamping plate 18. There are two clamping plates 18, and the two clamping plates 18 have the same size.

[0032] The design of the two clamping plates 18 plays a role in clamping and fixing the turbine blades.

[0033] Among them, the top of the base plate 1 is fixedly connected to a transmission motor 19 located on the left side of the mounting plate 17, the other end of the output shaft of the transmission motor 19 is fixedly sleeved with a transmission shaft 20, the outer surface of the transmission shaft 20 is fixedly sleeved with a rotating block 21, and the front of the rotating block 21 is hinged with a rotating rod 22. There are two rotating rods 22, and the other ends of the two rotating rods 22 are hinged to the two clamps 18 respectively.

[0034] When the transmission motor 19 is running, the transmission shaft 20 will drive the rotating block 21 to rotate, and then the two rotating rods 22 will rotate to drive the two clamping plates 18 to move away from each other, thereby achieving the function of automatically clamping and fixing the turbine blades.

[0035] A limiting rod 23 is fixedly installed inside the mounting plate 17 , and an outer surface of the limiting rod 23 is movably connected to the inner surfaces of the two clamping plates 18 .

[0036] The design of the limiting rod 23 serves to limit the two clamping plates 18 .

[0037] The working principle and use process of this utility model:

[0038] When crack detection is performed on a turbine blade, the transmission motor 19 is first started, which will cause the transmission shaft 20 to drive the rotating block 21 to rotate, and then the two rotating rods 22 to rotate and drive the two clamping plates 18 to move away from each other, thereby achieving the purpose of automatically clamping and fixing the turbine blade.

[0039] Then starting the rotating motor 7 will cause the rotating shaft 8 to drive the first gear 9 to rotate, and then the first gear 9 will mesh with the second gear 10 and drive the round rod 11 and the connecting rod 12 to rotate, so that the ultrasonic waveguide component 6 will rotate with the round rod 11 as the axis, thereby achieving the purpose of the ultrasonic waveguide component 6 to detect the blades at 360 degrees without blind spots, thereby ensuring the accuracy of turbine blade detection.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] 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 steam turbine blade detection device, comprising a base plate (1), characterized in that: A slide groove (2) is provided at the top of the bottom plate (1), a movable plate (3) is movably connected inside the slide groove (2), a circular ring (4) is fixedly installed at the bottom of the other end of the movable plate (3), a movable block (5) is movably sleeved inside the circular ring (4), an ultrasonic waveguide component (6) is fixedly connected at the bottom of the movable block (5), a rotating motor (7) is fixedly connected at the top of the inner cavity of the movable plate (3), a rotating shaft (8) is fixedly sleeved at the other end of the output shaft of the rotating motor (7), a first gear (9) is fixedly sleeved on the outer surface of the rotating shaft (8), a second gear (10) is meshingly connected on the outer surface of the first gear (9), a round rod (11) is fixedly sleeved inside the second gear (10), a connecting rod (12) located on the left side of the second gear (10) is fixedly sleeved on the outer surface of the round rod (11), and the other end of the connecting rod (12) is fixedly connected to the right side of the ultrasonic waveguide component (6).

2. A steam turbine blade detection device according to claim 1, characterized in that: A support rod (13) is movably sleeved on the outer surface of the round rod (11), the left side of the support rod (13) is movably connected to the right side of the second gear (10), and the top of the support rod (13) is fixedly connected to the top of the inner cavity of the movable plate (3).

3. A steam turbine blade detection device according to claim 1, characterized in that: A drive motor (14) is fixedly connected to the right side of the top of the bottom plate (1), a lead screw (15) is fixedly sleeved on the other end of the output shaft of the drive motor (14), and the outer surface of the lead screw (15) is threadedly sleeved on the inner surface of the movable plate (3).

4. A steam turbine blade detection device according to claim 1, characterized in that: A fixing block (16) located on the left side of the movable plate (3) is fixedly mounted on the top of the bottom plate (1), and the inner surface of the fixing block (16) is movably sleeved with the outer surface of the lead screw (15).

5. The steam turbine blade detection device according to claim 1, characterized in that: The top of the bottom plate (1) is fixedly connected to a mounting plate (17) located on the left side of the ring (4), and the inner surface of the mounting plate (17) is movably connected to a clamping plate (18). The number of the clamping plates (18) is two, and the two clamping plates (18) have the same size.

6. A steam turbine blade detection device according to claim 1, characterized in that: A transmission motor (19) located on the left side of the mounting plate (17) is fixedly connected to the top of the base plate (1), a transmission shaft (20) is fixedly sleeved on the other end of the output shaft of the transmission motor (19), a rotating block (21) is fixedly sleeved on the outer surface of the transmission shaft (20), a rotating rod (22) is hingedly connected to the front side of the rotating block (21), two rotating rods (22) are provided, and the other ends of the two rotating rods (22) are respectively hingedly connected to the two clamping plates (18).

7. A steam turbine blade detection device according to claim 5, characterized in that: A limiting rod (23) is fixedly mounted inside the mounting plate (17), and an outer surface of the limiting rod (23) is movably connected to inner surfaces of the two clamping plates (18).

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