Steam turbine blade strength detection device

Abstract

The utility model discloses a steam turbine blade strength detection device which comprises a detection module and a protection module. The detection module comprises a detection table, a limiting plate connected with the top of the detection table, a U-shaped frame connected with the detection table in an inserted mode, a plate sleeve installed on one side of the U-shaped frame, a plate body connected with the plate sleeve in an inserted mode, a hydraulic cylinder vertically penetrating through the plate body, a pressing plate connected with the movable end of the hydraulic cylinder, and a toothed plate installed on one side of the plate body. And the gear shaft is meshed with the bottom of the toothed plate. According to the utility model, before strength detection, a worker moves the push plates forwards, then the cover plate slides forwards, then the leather cloth protects the two sides of the limiting plate, and when the limiting plate is completely located in the two pieces of leather cloth, the two push plates are connected together, so that the sputtering of crushed blades is effectively prevented, and the sputtered blades can completely fall into a waste material cavity; the working environment is protected, and safety accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blade strength detection, in particular to a steam turbine blade strength detection device. Background Technique

[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 accelerating air flow and then jets onto the blades, causing the rotor equipped with the blade row to rotate and do work externally at the same time. Steam turbines are the main equipment in modern thermal power plants and are also used in the metallurgical industry, chemical industry, and ship power plants.

[0003] The application number is CN202122960217.5, an aeroengine blade strength detection device, belonging to the technical field of aeroengine blades. The key points of its technical solution include a base. Both the left and right ends of the upper end surface of the base are fixedly installed with side plates. A screw rod is installed between the two side plates. A slider is movably sleeved on the outer side wall of the screw rod. Thus, by turning on the laser irradiation lamp inside the installation groove, the laser irradiation lamp irradiates on the engine blade, which is the pressure detection point. Then, the motor is started, causing the screw rod to rotate and drive the slider to move, thereby adjusting the position of the pressing plate so that the laser irradiation lamp irradiates on various parts of the engine blade, achieving the effect of detecting various parts of the engine blade, effectively improving work efficiency. When the pressure test is over, by starting the electric push rod, the electric push rod pushes the push plate upward, thereby pushing the engine blade out of the limit groove, facilitating the taking of the engine blade or the cleaning of its fragments. When this application is specifically used, it does not have the function of protecting the working environment, resulting in splashing when the blade breaks, which is likely to cause safety accidents. Content of the Utility Model

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by the utility model is as follows:

[0006] A steam turbine blade strength detection device, comprising a detection module and a protection module. The detection module includes a detection table, a limit plate connected to the top of the detection table, a U-shaped frame inserted into the detection table, a plate sleeve installed on one side of the U-shaped frame, a plate body inserted into the plate sleeve, a hydraulic cylinder vertically penetrating the plate body, a pressing plate connected to the movable end of the hydraulic cylinder, a toothed plate installed on one side of the plate body, and a gear shaft meshing with the bottom of the toothed plate. The gear shaft is movably installed inside the plate sleeve. The protection module includes two cover plates movably embedded in the top of the detection table, a support rod slidably connected between the two cover plates and connected to the detection table, a cross plate connected to the U-shaped frame, two shells connected to the cross plate, a rotating shaft movably installed inside the shells, two torsion springs connected between the shells and the rotating shaft, a leather cloth connected to the rotating shaft, and a push plate connected to the leather cloth. A waste cavity is opened inside the detection table, and the push plate is attached to the rear side of the cover plate.

[0007] By adopting the above technical solution, before the strength detection, the staff moves the push plate forward, then the cover plate slides forward, and then the leather cloth protects both sides of the limit plate. When the limit plate is completely inside the two leather cloths, the two push plates are connected together, which effectively blocks the sputtering of the broken blades, and the sputtered blades can completely fall into the waste cavity, protecting the working environment and avoiding safety accidents.

[0008] In a preferred embodiment of the present invention, it can be further configured that the sum of the widths of the plate body and the toothed plate is equal to the length of the inner long side of the plate sleeve, and the toothed plate is movably inserted into the plate sleeve.

[0009] In a preferred embodiment of the present invention, it can be further configured that the two cover plates are vertically symmetric about the U-shaped frame. The upper half of the cover plate is rectangular, and the lower half is an isosceles trapezoid. The top of the cover plate is flush with the top of the detection table.

[0010] In a preferred embodiment of the present invention, it can be further configured that the two torsion springs are respectively located at the top and bottom of the rotating shaft, and the leather cloth is located between the two torsion springs.

[0011] In a preferred embodiment of the present invention, it can be further configured that a rotating rod is provided on one side of the plate sleeve, and the rotating rod is fixedly connected to the outer end of the gear shaft.

[0012] In a preferred embodiment of the present invention, it can be further configured that a handle is connected between the two cover plates, and the handle is made of stainless steel material.

[0013] In a preferred embodiment of the present invention, it can be further configured that two door panels are movably installed on the front side of the detection table, and the two door panels are attached to each other.

[0014] By adopting the above technical solutions, the beneficial effects achieved by the present utility model are as follows:

[0015] 1. In the present utility model, before the strength test, the staff moves the push plate forward, then the cover plate slides forward, and then the leather cloth protects both sides of the limit plate. When the limit plate is completely inside the two pieces of leather cloth, the two push plates are connected together, which effectively blocks the sputtering of the broken blades, and the sputtered blades can completely fall into the waste chamber, protecting the working environment and avoiding safety accidents.

[0016] 2. In the present utility model, the blade to be tested is placed on the limit plate. Then, according to the position of the blade, the staff manually rotates the rotating rod, and then the gear shaft affects the movement of the plate body with a toothed plate. Then, the hydraulic cylinder comes to the top of the blade, and then the hydraulic cylinder is started, and the pressing plate presses the blade. The staff records the time of blade deformation and breakage beside, and thus obtains the test data. Blades of any size can be tested, and the strength of any position of the blade can also be tested, improving the use comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0018] Figure 2 is an assembly schematic diagram of the overall structure of the detection module of the present utility model;

[0019] Figure 3 is a disassembled schematic diagram of a partial structure of the detection module of the present utility model;

[0020] Figure 4 is a schematic diagram of the overall structure of the protection module of the present utility model;

[0021] Figure 5 is a schematic diagram of a partial structure of the protection module of the present utility model.

[0022] REFERENCE NUMERALS:

[0023] 100, detection module; 110, detection table; 120, limit plate; 130, U-shaped frame; 140, plate sleeve; 150, plate body; 160, hydraulic cylinder; 170, pressing plate; 180, toothed plate; 190, gear shaft;

[0024] 200, protection module; 210, cover plate; 220, support rod; 230, cross plate; 240, housing; 250, rotating shaft; 260, torsion spring; 270, leather cloth; 280, push plate;

[0025] 300, rotating rod;

[0026] 400, handle;

[0027] 500, door panel. Detailed implementation mode

[0028] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specific implementation modes and with reference to the attached drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other.

[0029] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model.

[0030] The following describes a steam turbine blade strength detection device provided by some embodiments of the present utility model with reference to the attached drawings.

[0031] Embodiment 1:

[0032] As shown in Figures 1-5 A steam turbine blade strength detection device provided by the present utility model includes a detection module 100 and a protection module 200. The detection module 100 includes a detection table 110, a limit plate 120 connected to the top of the detection table 110, a U-shaped frame 130 inserted into the detection table 110, a plate sleeve 140 installed on one side of the U-shaped frame 130, a plate body 150 inserted into the plate sleeve 140, a hydraulic cylinder 160 vertically penetrating the plate body 150, a pressing plate 170 connected to the movable end of the hydraulic cylinder 160, a toothed plate 180 installed on one side of the plate body 150, and a gear shaft 190 meshing with the bottom of the toothed plate 180. The gear shaft 190 is movably installed inside the plate sleeve 140;

[0033] The protection module 200 includes two cover plates 210 movably embedded in the top of the detection table 110, a support rod 220 slidably connected between the two cover plates 210 and connected to the detection table 110, a cross plate 230 connected to the U-shaped frame 130, two shells 240 connected to the cross plate 230, a rotating shaft 250 movably installed inside the shells 240, two torsion springs 260 connected between the shells 240 and the rotating shaft 250, a leather cloth 270 connected to the rotating shaft 250, and a push plate 280 connected to the leather cloth 270. A waste cavity is provided inside the detection table 110, and the push plate 280 is attached to the rear side of the cover plate 210.

[0034] Furthermore, the sum of the widths of the plate body 150 and the toothed plate 180 is equal to the length of the long side inside the plate sleeve 140. The toothed plate 180 is movably inserted into the plate sleeve 140. With this size design, the plate body 150 can smoothly expand and contract inside the plate sleeve 140.

[0035] Further, the two cover plates 210 are vertically symmetric with respect to the U-shaped frame 130. The upper half of the cover plate 210 is rectangular, and the lower half is an isosceles trapezoid. The top of the cover plate 210 is flush with the top of the inspection table 110. With this shape design, the cover plate 210 can be clamped to the top of the inspection table 110, effectively preventing the cover plate 210 from falling into the waste cavity.

[0036] Further, the two torsion springs 260 are respectively located at the top and bottom of the rotating shaft 250, and the leather cloth 270 is located between the two torsion springs 260. With this layout design, after the leather cloth 270 is stretched, the two torsion springs 260 can wind up the leather cloth 270.

[0037] Further, two door panels 500 are movably installed on the front side of the inspection table 110, and the two door panels 500 are attached to each other. By providing the door panels 500, the front side of the inspection table 110 can be sealed to prevent debris in the waste cavity from flying out.

[0038] Embodiment 2:

[0039] Combined with Figures 2-3 As shown, on the basis of Embodiment 1, a rotating rod 300 is provided on one side of the plate sleeve 140, and the rotating rod 300 is fixedly connected to the outer end of the gear shaft 190. By providing the rotating rod 300, the staff can easily rotate the gear shaft 190.

[0040] Embodiment 3:

[0041] Combined with Figure 1 and Figure 4 As shown, in the above embodiment, a handle 400 is connected between the two cover plates 210, and the handle 400 is made of stainless steel. By providing the handle 400, the staff can return the two cover plates 210 to their original positions at the same time.

[0042] The working principle and usage process of the present utility model: When the device is put into actual use, the blade to be detected is placed on the limiting plate 120. Then, according to the position of the blade, the staff manually rotates the rotating rod 300, and then the gear shaft 190 affects the movement of the plate body 150 with the toothed plate 180. Then, the hydraulic cylinder 160 comes to the top of the blade, and then the hydraulic cylinder 160 is started, and then the pressing plate 170 presses the blade. The staff records the time of blade deformation and breakage beside, thereby obtaining the detection data. Then, during this process, the staff has moved the push plate 280 forward, and then the cover plate 210 slides forward, and then the leather cloth 270 protects both sides of the limiting plate 120. When the limiting plate 120 is completely inside the two leather cloths 270, the two push plates 280 are connected together, which effectively blocks the sputtering of the broken blades, and the sputtered blades fall into the waste cavity.

[0043] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A steam turbine blade strength detection device, characterized in that, Including: A detection module (100), the detection module (100) includes a detection table (110), a limiting plate (120) connected to the top of the detection table (110), a U-shaped frame (130) inserted into the detection table (110), a plate sleeve (140) installed on one side of the U-shaped frame (130), a plate body (150) inserted into the plate sleeve (140), a hydraulic cylinder (160) vertically penetrating the plate body (150), a pressing plate (170) connected to the movable end of the hydraulic cylinder (160), a toothed plate (180) installed on one side of the plate body (150), and a gear shaft (190) meshing with the bottom of the toothed plate (180), and the gear shaft (190) is movably installed inside the plate sleeve (140); A protection module (200), the protection module (200) includes two cover plates (210) movably embedded in the top of the detection table (110), a support rod (220) slidably connected between the two cover plates (210) and connected to the detection table (110), a cross plate (230) connected to the U-shaped frame (130), two shells (240) connected to the cross plate (230), a rotating shaft (250) movably installed inside the shell (240), two torsion springs (260) connected between the shell (240) and the rotating shaft (250), a leather cloth (270) connected to the rotating shaft (250), and a push plate (280) connected to the leather cloth (270). A waste cavity is opened inside the detection table (110), and the push plate (280) is attached to the rear side of the cover plate (210).

2. The steam turbine blade strength detection device according to claim 1, characterized in that, The sum of the widths of the plate body (150) and the toothed plate (180) is equal to the length of the inner long side of the plate sleeve (140), and the toothed plate (180) is movably inserted into the plate sleeve (140).

3. The steam turbine blade strength detection device according to claim 1, characterized in that, The two cover plates (210) are vertically symmetric about the U-shaped frame (130). The upper half of the cover plate (210) is rectangular, and the lower half is an isosceles trapezoid. The top of the cover plate (210) is flush with the top of the detection table (110).

4. A steam turbine blade strength detection device according to claim 1, characterized in that, The two torsion springs (260) are respectively located at the top and bottom of the rotating shaft (250), and the leather cloth (270) is located between the two torsion springs (260).

5. The strength detection device for a steam turbine blade according to claim 1, wherein, A rotating rod (300) is provided on one side of the plate sleeve (140), and the rotating rod (300) is fixedly connected to the outer end of the gear shaft (190).

6. The steam turbine blade strength detection device according to claim 1, characterized in that, A handle (400) is connected between the two cover plates (210), and the handle (400) is made of stainless steel material.

7. A steam turbine blade strength detection device according to claim 1, characterized in that, Two door panels (500) are movably installed on the front side of the detection table (110), and the two door panels (500) are attached to each other.

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