Turbine casting deformation performance detection device

Abstract

The utility model discloses a steam turbine casting deformation performance detection device which comprises a base, a supporting frame, an adjusting device, a casting, a hydraulic cylinder, a first detection plate, an alarm lamp, a strong spring, a second detection plate, a deflection detector, a pressure sensor and a pressing block. Through the arrangement of the adjusting device, the detection point position of the clamped casting can be adjusted conveniently, multiple different point positions of the casting can be detected conveniently, the point position, needing to be detected, of the casting and the pressing block can be adjusted and centered through rotation of the screw rod and the second bolt, accurate detection is achieved, and the adjusting device is flexible to use, convenient to operate and high in practicability. The device is simple in structure and high in convenience, a clamping piece is arranged, a casting can be conveniently and rapidly clamped in a centering mode, clamping plates are driven by power to horizontally slide along a sliding groove in the surface of an assembly body through rotation of a linear frame and connection of a connecting frame, then the two sets of clamping plates move in the opposite directions to clamp the casting, the clamped casting is located in the centering position, and detection is convenient.

Description

Technical Field

[0001] The utility model relates to the field of steam turbines, in particular to a steam turbine casting deformation performance 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. 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 Chinese patent with patent number CN201820713243.3 discloses "A large steam turbine casting deformation performance detection device", which clamps the casting through a cylinder and a baffle, and uses a hydraulic cylinder to drive the pressure plate to press down. When the strong spring is fully compressed, the contact switch contacts the electric shock, and the alarm light comes on, the deformation detection is qualified. When the casting is unqualified and deformed, the alarm light does not light up, so as to detect deformation, with high detection efficiency and low cost;

[0004] This structure has certain advantages, but still has some shortcomings:

[0005] In the process of deformation performance testing of castings, in order to ensure the accuracy of casting testing, it is necessary to test multiple key points of the castings. The casting testing is carried out by clamping the castings through the cooperation of the baffle and the cylinder. This method allows only a single point of the casting to be tested in a single clamping. In addition, once the placement of the casting is changed, such as from horizontal to vertical placement, and the casting is pushed and clamped by the cylinder, the casting will continue to move to the right until it is fixed against the baffle. There is a situation where the point of the casting that needs to be tested is not centered with the pressure block, which is not conducive to the accurate detection of the point of the casting that needs to be tested. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a steam turbine casting deformation performance detection device.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a turbine casting deformation performance detection device, including a base, a support frame, an adjustment device, a casting, a hydraulic cylinder, a first detection plate, an alarm light, a strong spring, a second detection plate, a deflection detector, a pressure sensor, and a pressure block. The top of the base is fixed with a support frame, the top of the support frame is equipped with a hydraulic cylinder, the bottom end of the hydraulic cylinder is locked and fixed with the first detection plate, the front end of the first detection plate is provided with an alarm light, the bottom end of the first detection plate is fixed with a strong spring, the top of the second detection plate is elastically connected with the first detection plate by a strong spring, the bottom end of the second detection plate is respectively equipped with a deflection detector and a pressure sensor, the bottom end of the pressure sensor is fixed with a pressure block, the adjustment device is fixed to the top of the base, and its The top clamp holds a casting, and the adjusting device includes a supporting base, a handwheel, a locking device, a screw, a sliding seat, a second base, a second handwheel, a second locking device, a second screw, and a clamp. The supporting base is fixed to the top of the base, and a handwheel is installed at its front end. The screw rotates synchronously with the handwheel, and a locking device is installed at the connection between the screw and the handwheel. The rear end of the screw is movably connected to the supporting base, and the inner side of the left end of the sliding seat is threadedly connected to the screw. The bottom end of the second base is fixed to the sliding seat, and a second handwheel is installed at the right end. The right end of the second screw rotates synchronously with the second handwheel, and a second locking device is installed at the connection between the screw and the second handwheel. The left end of the second screw is movably connected to the second base, and the bottom end of the clamp is threadedly connected to the second screw. The top clamp of the clamp holds a casting.

[0008] As an improvement on a device for detecting deformation performance of a steam turbine casting, the clamping member includes an assembly, a motor, a rotating shaft, a straight frame, a connecting frame, and a clamping plate. The bottom end of the assembly is threadedly connected to a second screw rod, and a motor is installed inside the assembly. The bottom end of the motor is transmission-connected to the rotating shaft by a coupling, the bottom end of the rotating shaft is rotatably connected to the assembly, a straight frame is fixed to the outside of the rotating shaft, the top end of the straight frame is rotatably connected to a connecting frame, the right end of the connecting frame is rotatably connected to a clamping plate, and the clamping plate is slidably connected to the inside of the assembly.

[0009] As an improvement of a steam turbine casting deformation performance detection device, a rubber pad is fixed on the inner side of the clamping plate to enhance the tightness with the casting and facilitate clamping the casting.

[0010] As an improvement of the deformation performance detection device of turbine castings, a slide groove is arranged on the surface of the assembly body to limit the moving direction of the clamping plate so that the clamping plate can only slide along the slide groove under power drive, presenting horizontal movement, which is convenient for bidirectional clamping of the casting.

[0011] As an improvement of a steam turbine casting deformation performance detection device, the cross section of the assembly is in a "T" shape, which is convenient for sliding left and right inside the second base.

[0012] As an improvement on the deformation performance detection device for turbine castings, the cross-sections of the slide and the support base are both "L"-shaped. The "L"-shaped support base is convenient for the setting of the screw, and the "L"-shaped slide is convenient for driving the left-end screw and adapting to the shape of the support base, making the overall appearance more beautiful.

[0013] As an improvement of the deformation performance detection device of turbine castings, the locking device is a prior art and will not be described in detail here.

[0014] As an improvement of a steam turbine casting deformation performance detection device, the straight frame and the connecting frame are both made of stainless steel, which has high strength, durability and is not easy to deform.

[0015] As an improvement of a steam turbine casting deformation performance detection device, the clamping plate is made of tungsten steel, has high strength, is durable, and is easy to clamp.

[0016] Compared with the prior art, the utility model provides a steam turbine casting deformation performance detection device, which has the following beneficial effects:

[0017] Advantage 1: The utility model is provided with an adjustment device, which facilitates the adjustment of the detection point of the clamped casting, facilitates the detection of multiple different points of the casting, and through the rotation of the screw rod and the second bolt, the point of the casting to be detected can be adjusted and aligned with the pressure block to achieve accurate detection. The adjustment device is flexible to use and highly convenient.

[0018] Advantage 2: The utility model provides a clamping piece, which facilitates the rapid and centered clamping of the casting. By rotating the I-frame and connecting the connecting frame, the clamping plate is driven by power to slide horizontally along the slide groove on the surface of the assembly, and then the two sets of clamping plates move toward each other to clamp the casting and place the clamped casting in a centered position for easy detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the regulating device of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the regulating device of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the clamping member of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the clamping member of the utility model;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the splint of the utility model.

[0025] Among them: base-1, support frame-2, adjustment device-3, casting-4, hydraulic cylinder-5, first detection plate-6, alarm light-7, strong spring-8, second detection plate-9, deflection detector-10, pressure sensor-11, pressure block-12, support base-31, hand wheel-32, locker-33, screw-34, slide-35, second base-36, second hand wheel-37, second locker-38, second screw-39, clamping part-310, assembly-3101, motor-3102, rotating shaft-3103, straight frame-3104, connecting frame-3105, splint-3106. DETAILED DESCRIPTION

[0026] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0027] See also Figure 1 The utility model provides a turbine casting deformation performance detection device through improvement, including a base 1, a support frame 2, a casting 4, a hydraulic cylinder 5, a first detection plate 6, an alarm light 7, a strong spring 8, a second detection plate 9, a deflection detector 10, a pressure sensor 11, and a pressure block 12. The top of the base 1 is fixed with the support frame 2, the top of the support frame 2 is equipped with a hydraulic cylinder 5, the bottom end of the hydraulic cylinder 5 is locked and fixed with the first detection plate 6, the front end of the first detection plate 6 is provided with an alarm light 7, the bottom end of the first detection plate 6 is fixed with a strong spring 8, the top of the second detection plate 9 is elastically connected with the first detection plate 6 by a strong spring 8, the bottom end of the second detection plate 9 is respectively equipped with a deflection detector 10 and a pressure sensor 11, and the bottom end of the pressure sensor 11 is fixed with a pressure block 12.

[0028] In this embodiment, the pressure required for the strong spring 8 to be fully compressed is 0.1 KN less than the compressive deformation value of the standard casting 4, and a contact switch is provided at the bottom end of the first detection plate 6, and a contact is provided at the top end of the second detection plate 9. When the strong spring 8 is fully squeezed, the contact switch contacts the contact, causing the alarm light 7 to sound.

[0029] See also Figure 2-3The utility model provides a steam turbine casting deformation performance detection device through improvement. The adjusting device 3 is fixed to the top of the base 1, and the top of the adjusting device 3 clamps the casting 4. The adjusting device 3 includes a supporting base 31, a hand wheel 32, a locking device 33, a screw 34, a sliding seat 35, a second base 36, a second hand wheel 37, a second locking device 38, a second screw 39, and a clamping member 310. The supporting base 31 is fixed to the top of the base 1, and a hand wheel 32 is installed at the front end thereof. The screw 34 rotates synchronously with the hand wheel 32, and the connection between the screw 34 and the hand wheel 32 is arranged. A locking device 33 is provided, the rear end of the screw rod 34 is movably connected to the supporting base 31, the inner side of the left end of the slide 35 is threadedly connected to the screw rod 34, the bottom end of the second base 36 is fixed to the slide 35, and a second hand wheel 37 is installed at its right end, the right end of the second screw rod 39 rotates synchronously with the second hand wheel 37, and a second locking device 38 is installed at the connection between the second screw rod 39 and the second hand wheel 37, the left end of the second screw rod 39 is movably connected to the second base 36, the bottom end of the clamping member 310 is threadedly connected to the second screw rod 39, and the top end of the clamping member 310 clamps the casting 4.

[0030] In this embodiment, the cross-sections of the slide 35 and the support base 31 are both "L"-shaped. The "L"-shaped support base 31 is convenient for the installation of the screw 34, and the "L"-shaped slide 35 is convenient for driving the left end screw 34 and adapting to the shape of the support base 31, making the overall appearance more beautiful.

[0031] Among them, the locker 33 is a prior art and will not be described in detail here. When the hand wheel 32 and the second hand wheel 37 are used, the locker 33 is used to limit the position, thereby ensuring the stability of the slide 35 and the assembly 3101 after movement.

[0032] See also Figure 4-6 The utility model provides a turbine casting deformation performance detection device through improvement. The clamping part 310 includes an assembly 3101, a motor 3102, a rotating shaft 3103, a straight frame 3104, a connecting frame 3105, and a clamping plate 3106. The bottom end of the assembly 3101 is threadedly connected to the second screw 39, and the motor 3102 is installed inside it. The bottom end of the motor 3102 is transmission-connected to the rotating shaft 3103 by a coupling. The bottom end of the rotating shaft 3103 is rotationally connected to the assembly 3101. The outer side of the rotating shaft 3103 is fixed with a straight frame 3104. The top of the straight frame 3104 is rotationally connected with the connecting frame 3105. The right end of the connecting frame 3105 is rotationally connected to the clamping plate 3106, and the clamping plate 3106 is slidably connected to the inside of the assembly 3101.

[0033] In this embodiment, a rubber pad is fixed on the inner side of the splint 3106 to enhance the tightness with the casting 4 and to facilitate clamping the casting 4. A slide groove is provided on the surface of the assembly 3101 to facilitate limiting the movement direction of the splint 3106 so that the splint 3106 can only slide along the slide groove under power and show horizontal movement, which is convenient for bidirectional clamping of the casting 4. The cross-section of the assembly 3101 is in a "T" shape, which is convenient for sliding left and right inside the second base 36.

[0034] refer to Figure 1-Figure 6 When in use, the casting 4 is placed on the assembly 3101, and the motor 3102 is started to drive the rotating shaft 3103 and the straight frame 3104 to rotate, and under the connection of the connecting frame 3105, the clamping plate 3106 is dragged to move inward along the sliding groove on the surface of the assembly 3101, so that the two sets of clamping plates 3106 clamp the casting 4 in the center, and then;

[0035] The hydraulic cylinder 5 pushes the first detection plate 6 downward, layer by layer, so that the pressure block 12 squeezes the casting 4. When the strong spring 8 is fully squeezed and the contact switch at the bottom of the first detection plate 6 contacts the contact at the top of the second detection plate 9, the alarm light 7 at the front end of the first detection plate 6 sounds, indicating that the casting 4 is qualified under this pressure and is a standard casting. When the strong spring 8 is not fully squeezed and the casting 4 has been deformed, the deformation performance of the casting 4 is unqualified. At this time, the deformation degree of the casting 4 is detected by the deflection detector 10, and the pressure sensor 11 accurately senses the pressure value of the casting 4.

[0036] During the inspection process of the casting 4, in order to change the inspection point of the casting 4, the hand wheel 32 or the second hand wheel 37 can be rotated to drive the screw 34 and the second screw 39 to rotate respectively, thereby driving the slide 35 and the assembly 3101 to slide horizontally and vertically, thereby changing the inspection point of the casting 4, thereby realizing the deformation performance inspection of multiple inspection points of the casting 4, and improving the flexibility and convenience of the inspection process.

[0037] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0038] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0039] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steam turbine casting deformation performance detection device, comprising a base (1), a support frame (2), a casting (4), a hydraulic cylinder (5), a first detection plate (6), an alarm light (7), a strong spring (8), a second detection plate (9), a deflection detector (10), a pressure sensor (11), and a pressure block (12), wherein the top of the base (1) is fixed with the support frame (2), and the top of the support frame (2) is equipped with the hydraulic cylinder (5); Features: The invention also comprises an adjusting device (3), wherein the adjusting device (3) is fixed to the top of the base (1), and the top of the adjusting device (3) clamps the casting (4), wherein the adjusting device (3) comprises a supporting base (31), a hand wheel (32), a locking device (33), a screw rod (34), a sliding seat (35), a second base (36), a second hand wheel (37), a second locking device (38), a second screw rod (39), and a clamping member (310), wherein the supporting base (31) is fixed to the base The top of the support frame (1) is provided with a hand wheel (32) at its front end, the screw rod (34) rotates synchronously with the hand wheel (32), and a locking device (33) is installed at the connection between the screw rod (34) and the hand wheel (32), the rear end of the screw rod (34) is movably connected to the support base (31), the inner side of the left end of the slide seat (35) is threadedly connected to the screw rod (34), the bottom end of the second base (36) is fixed to the slide seat (35), and the right end of the second base (36) is provided with a second hand wheel (37).

2. A steam turbine casting deformation performance detection device according to claim 1, characterized in that: The clamping member (310) comprises an assembly (3101), a motor (3102), a rotating shaft (3103), a straight frame (3104), a connecting frame (3105), and a clamping plate (3106). The bottom end of the assembly (3101) is threadedly connected to the second screw (39), and the motor (3102) is installed inside the assembly. The bottom end of the motor (3102) is transmission-connected to the rotating shaft (3103) by a coupling. The bottom end of the rotating shaft (3103) is rotationally connected to the assembly (3101). The outer side of the rotating shaft (3103) is fixed with a straight frame (3104). The top end of the straight frame (3104) is rotationally connected to the connecting frame (3105). The right end of the connecting frame (3105) is rotationally connected to the clamping plate (3106), and the clamping plate (3106) is slidably connected to the inside of the assembly (3101).

3. The steam turbine casting deformation performance detection device according to claim 1, characterized in that: The bottom end of the hydraulic cylinder (5) is locked and fixed to the first detection plate (6), the front end of the first detection plate (6) is provided with an alarm light (7), the bottom end of the first detection plate (6) is fixed with a strong spring (8), the top end of the second detection plate (9) is elastically connected to the first detection plate (6) by a strong spring (8), the bottom end of the second detection plate (9) is respectively installed with a deflection detector (10) and a pressure sensor (11), and the bottom end of the pressure sensor (11) is fixed with a pressure block (12).

4. The steam turbine casting deformation performance detection device according to claim 1, characterized in that: The right end of the second screw rod (39) rotates synchronously with the second hand wheel (37), and a second locker (38) is installed at the connection between the second screw rod (39) and the second hand wheel (37). The left end of the second screw rod (39) is movably connected to the second base (36). The bottom end of the clamping member (310) is threadedly connected to the second screw rod (39), and the top end of the clamping member (310) clamps the casting (4).

5. The steam turbine casting deformation performance detection device according to claim 2, characterized in that: A rubber pad is fixed to the inner side of the clamping plate (3106).

6. The steam turbine casting deformation performance detection device according to claim 2, characterized in that: The surface of the assembly (3101) is provided with a slide groove.

7. The steam turbine casting deformation performance detection device according to claim 2, characterized in that: The cross section of the assembly (3101) is "T" shaped.

8. The steam turbine casting deformation performance detection device according to claim 1, characterized in that: The cross sections of the sliding seat (35) and the supporting base (31) are both L-shaped.

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