CN220040339U

CN220040339U - Nondestructive testing device for hydroelectric generator blade

Info

Publication number: CN220040339U
Application number: CN202321058447.5U
Authority: CN
Inventors: 赵鹏程; 李兰芬; 赵姝璇; 徐竟峰; 马绍义; 李忻遥; 阮继飞
Original assignee: Yunnan Chengjiang Pengcheng Mechanical And Electrical Installation Engineering Co ltd
Current assignee: Yunnan Chengjiang Pengcheng Mechanical And Electrical Installation Engineering Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-11-17
Anticipated expiration: 2033-05-06

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to a nondestructive detection device for a blade of a hydroelectric generator. According to the utility model, the inserted link is inserted into the support frame by pushing the ultrasonic nondestructive testing probe to contact with the support frame, the inserted link can be limited under the action of structures such as the clamping link and the slot, so that the ultrasonic nondestructive testing probe is stable to mount and is convenient for people to install and use rapidly, the blade body can be pressed and fixed through the telescopic action of the air cylinder, the air cylinder can be guided and treated under the action of the guide rod and the guide cylinder, the guide rod can be positioned under the action of the structures such as the clamping slot and the clamping block, and the stroke of the telescopic end of the air cylinder can be accurately controlled, so that the problem of excessive extrusion of the blade body is avoided.

Description

Nondestructive testing device for hydroelectric generator blade

Technical Field

The utility model relates to the technical field of detection devices, in particular to a nondestructive detection device for a blade of a hydroelectric generator.

Background

It is known that hydroelectric power generation mainly utilizes potential energy stored in a water body to convert the water energy into electric energy, so that the problem of electric power demand is solved, and the hydroelectric power generation needs to be used for a hydroelectric power generator, so that the hydroelectric power generator needs to be matched with a power generator blade for use, and in the process of producing and processing the power generator blade, in order to ensure delivery quality, the blade needs to be detected by using a hydraulic generator blade nondestructive detection device.

The utility model discloses a generator blade detection device in the patent collection publication No. CN212159400U, which comprises a detection device frame, a small press, a press mounting frame, a compression cylinder, a blade support column, a detection rod and blades, wherein the press mounting frame which is horizontally arranged is welded and fixed at the middle position of the detection device frame, the small press is mounted on the press mounting frame, the telescopic end of the small press is vertically downward, the telescopic end of the small press is provided with a sleeve, the surface of the small press is fixedly provided with the detection rod mounting frame through a screw, the bottom of the detection rod mounting frame is fixedly provided with the detection rod positioning sleeve, the detection rod is inserted into the detection rod positioning sleeve, the detection rod and the sleeve are positioned on the same straight line, and the surface of the detection rod is provided with scale marks; the utility model is simple and convenient to use, and can rapidly detect the bending strength of the generator blade.

However, the existing hydraulic generator blade nondestructive testing device also has a certain defect, firstly, the existing hydraulic generator blade nondestructive testing device adopts a bolt or screw mode to fix an ultrasonic nondestructive testing probe, and because the ultrasonic nondestructive testing probe is installed by adopting a fixed standard part, a professional assembly tool is required, and the ultrasonic nondestructive testing probe is obviously inconvenient for operators to install and use;

secondly, although the existing hydroelectric generator blade nondestructive testing device adopts an air cylinder to compress and fix the blade body, the air cylinder can enable the telescopic end of the air cylinder to generate redundant displacement when in a closed state due to the influence of other factors such as inertia, and further the problem of redundant extrusion on the blade body is caused.

Disclosure of Invention

The utility model aims to provide a nondestructive testing device for a hydroelectric generator blade, which solves the problems that the conventional nondestructive testing device for the hydroelectric generator blade is mainly used for fixing an ultrasonic nondestructive testing probe by adopting a bolt or a screw, and a special assembly tool is required to be used because a fixing standard part is adopted for installation, so that the installation and the use of the device are obviously inconvenient for operators, and the conventional nondestructive testing device for the hydroelectric generator blade is used for compacting and fixing a blade body by adopting a cylinder, and the telescopic end of the cylinder is caused to generate redundant displacement when the cylinder is in a closed state due to the influence of other factors such as inertia, so that the blade body is caused to generate redundant extrusion.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hydroelectric generator blade nondestructive test device, includes the frame, fixedly connected with support frame on the frame, the contact has ultrasonic wave nondestructive test probe on the support frame, be provided with installation mechanism on ultrasonic wave nondestructive test probe and the support frame jointly, fixedly connected with supporting shoe on the frame, the contact has the blade body on the supporting shoe, the blade body contacts with the support frame, fixedly mounted with cylinder on the frame, the flexible end and the blade body contact of cylinder, fixedly connected with guide cylinder on the frame, sliding connection has the guide arm on the guide cylinder, the telescopic end fixed connection of guide arm and cylinder is provided with positioning mechanism on guide arm and the guide cylinder jointly.

Preferably, the installation mechanism comprises an inserting rod, a slot, a clamping rod, an end block, a first spring and an end buckle, wherein the inserting rod is fixedly connected to the ultrasonic nondestructive testing probe, the inserting rod is in sliding connection with a supporting frame, the slot is formed in the inserting rod, the clamping rod is in sliding connection with the supporting frame, the clamping rod is in sliding connection with the slot, the end block is fixedly connected with the end block in the supporting frame, the end block is in sliding connection with the inserting rod, and the inserting rod can be limited through the arrangement of the slot, the clamping rod and the like, so that the ultrasonic nondestructive testing probe is in stable arrangement.

Preferably, the end block is welded with a first spring, the other end of the first spring is welded with the clamping rod, and the clamping rod can be connected through the arrangement of the first spring.

Preferably, fixedly connected with end knot on the kelly, the end is detained for the rubber material, through the setting of end knot, and the operation personnel of being convenient for pulls the kelly and removes, and the rubber material possesses good skin-friendly nature.

Preferably, the positioning mechanism comprises a clamping groove, a top plate, a clamping block, an end plate and a second spring, the clamping groove is formed in the guide cylinder, the top plate is connected in a sliding mode in the guide rod, the clamping block is fixedly connected to the top plate, the clamping block is connected with the clamping groove in a sliding mode, the end plate is fixedly connected to the guide rod in the sliding mode, the end plate is connected with the guide cylinder in the sliding mode, and limiting treatment can be conducted on the guide rod through the arrangement of the clamping groove, the clamping block and the like.

Preferably, two clamping grooves are formed, the two clamping grooves are uniformly distributed on the guide cylinder, and clamping blocks are matched to be clamped conveniently through the arrangement of the clamping grooves.

Preferably, a second spring is welded on the end plate, a top plate at the other end of the second spring is welded, and the top plate can be tightly propped through the arrangement of the second spring.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the ultrasonic nondestructive testing probe is pushed to be in contact with the support frame, so that the inserted bar is inserted into the support frame, and the inserted bar can be limited under the action of the structures such as the clamping bar, the slot and the like, so that the ultrasonic nondestructive testing probe is stably arranged, and the ultrasonic nondestructive testing probe is convenient for people to rapidly install and use.

2. According to the utility model, the blade body can be pressed and fixed through the telescopic action of the air cylinder, the air cylinder can be guided under the action of the guide rod and the guide cylinder, and the guide rod can be positioned under the action of the clamping groove, the clamping block and other structures, so that the stroke of the telescopic end of the air cylinder is accurately controlled, and the problem of excessive extrusion on the blade body is avoided.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a front cross-sectional view of FIG. 1 of the present utility model;

FIG. 3 is an enlarged view of FIG. 2A in accordance with the present utility model;

fig. 4 is an enlarged view of fig. 2B in accordance with the present utility model.

In the figure: 1. a frame; 2. a support frame; 3. an ultrasonic nondestructive testing probe; 4. a mounting mechanism; 5. a support block; 6. a blade body; 7. a cylinder; 8. a guide cylinder; 9. a guide rod; 10. a positioning mechanism; 41. a rod; 42. a slot; 43. a clamping rod; 44. an end block; 45. a first spring; 46. an end buckle; 101. a clamping groove; 102. a top plate; 103. a clamping block; 104. an end plate; 105. and a second spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, the nondestructive testing device for blades of a hydroelectric generator comprises a frame 1, wherein a supporting frame 2 is fixedly connected to the frame 1, an ultrasonic nondestructive testing probe 3 is contacted to the supporting frame 2, a mounting mechanism 4 is jointly arranged on the ultrasonic nondestructive testing probe 3 and the supporting frame 2, a supporting block 5 is fixedly connected to the frame 1, a blade body 6 is contacted to the supporting block 5, a cylinder 7 is fixedly arranged on the frame 1, the telescopic end of the cylinder 7 is contacted with the blade body 6, a guide cylinder 8 is fixedly connected to the frame 1, a guide rod 9 is connected to the guide cylinder 8 in a sliding manner, the guide rod 9 is fixedly connected with the telescopic end of the cylinder 7, and a positioning mechanism 10 is jointly arranged on the guide rod 9 and the guide cylinder 8.

Referring to fig. 1, 2 and 3, the mounting mechanism 4 includes an inserting rod 41, a slot 42, a clamping rod 43, an end block 44, a first spring 45 and an end buckle 46, the inserting rod 41 is fixedly connected to the ultrasonic nondestructive testing probe 3, the inserting rod 41 is slidably connected with the supporting frame 2, the slot 42 is formed in the inserting rod 41, the clamping rod 43 is slidably connected with the slot 42 in the supporting frame 2, the end block 44 is fixedly connected with the end block 44 in the supporting frame 2, the end block 44 is slidably connected with the inserting rod 41, the first spring 45 is welded to the end block 44, the other end of the first spring 45 is welded to the clamping rod 43, the first spring 45 is arranged to enable the clamping rod 43 to be connected with the end buckle 46, the end buckle 46 is made of a rubber material, the clamping rod 43 is convenient to move by the aid of the setting of the end buckle 46, the rubber material has good skin-friendly performance, and the inserting rod 41 can be limited by the setting of the structures such as the slot 42 and the clamping rod 43, and the ultrasonic nondestructive testing probe 3 is stable to be placed.

Referring to fig. 1, 2 and 4, the positioning mechanism 10 includes a clamping groove 101, a top plate 102, a clamping block 103, an end plate 104 and a second spring 105, the clamping groove 101 is formed in the guide cylinder 8, the clamping grooves 101 are formed in two, the two clamping grooves 101 are uniformly distributed on the guide cylinder 8, the clamping block 103 is convenient to cooperate for clamping through the arrangement of the clamping groove 101, the top plate 102 is slidably connected in the guide rod 9, the clamping block 103 is fixedly connected to the top plate 102, the clamping block 103 is slidably connected with the clamping groove 101, the end plate 104 is fixedly connected in the guide rod 9, the end plate 104 is slidably connected with the guide cylinder 8, the second spring 105 is welded on the end plate 104, the top plate 102 at the other end of the second spring 105 is welded, the top plate 102 can be tightly propped up through the arrangement of the clamping groove 101, the clamping block 103 and other structures, and the guide rod 9 can be limited.

The specific implementation process of the utility model is as follows: when the nondestructive testing device for the blade of the hydroelectric generator needs to be used, the ultrasonic nondestructive testing probe 3 can be pushed to contact with the support frame 2, so that the inserting rod 41 is inserted into the support frame 2, in the process, the clamping rod 43 is extruded by the end face of the inserting rod 41 to slide, under the action of the end block 44, the first spring 45 is stressed to deform, the clamping rod 43 finally contacts with the surface of the inserting rod 41, under the action of the force, the clamping rod 43 slides along the surface of the inserting rod 41, when the clamping rod 43 slides into the slot 42, the first spring 45 is restored to deform so as to push the clamping rod 43 to be inserted into the inserting rod 41, and limit the inserting rod 41, so that the inserting rod 41 drives the ultrasonic nondestructive testing probe 3 to be stably arranged, and the rapid installation and use of operators are facilitated;

then place the blade body 6 that will wait to detect on supporting shoe 5 to make blade body 6 and support frame 2 contact, start cylinder 7 drive flexible end and move down, and then make flexible end and blade body 6 contact, compress tightly fixedly to blade body 6, detect under the effect of ultrasonic nondestructive test probe 3 to blade body 6, in this process, guide arm 9 atress guide tube 8 inner wall slides, draw-in groove 101 atress extrusion fixture block 103, fixture block 103 atress promotes roof 102 and slides, under the effect of end plate 104, spring two 105 atress deformation, finally make fixture block 103 break away from draw-in groove 101, do under the power, fixture block 103 slides along guide tube 8 inner wall, when fixture block 103 slides next draw-in groove 101 department, spring two 105 resumes deformation, in order to promote fixture block 103 to insert draw-in groove 101, carry out spacing to guide arm 9, and then carry out accurate control to the flexible end of cylinder 7, avoid causing the problem of excessive extrusion to blade body 6.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Hydroelectric generator blade nondestructive test device, including frame (1), its characterized in that: fixedly connected with support frame (2) on frame (1), the contact has ultrasonic wave nondestructive test probe (3) on support frame (2), be provided with installation mechanism (4) on ultrasonic wave nondestructive test probe (3) and the support frame (2) jointly, fixedly connected with supporting shoe (5) on frame (1), the contact has blade body (6) on supporting shoe (5), blade body (6) and support frame (2) contact, fixedly mounted has cylinder (7) on frame (1), the flexible end and the blade body (6) contact of cylinder (7), fixedly connected with guide cylinder (8) on frame (1), sliding connection has guide arm (9) on guide cylinder (8), telescopic end fixed connection of guide arm (9) and cylinder (7), be provided with positioning mechanism (10) on guide arm (9) and the guide cylinder (8) jointly.

2. The hydroelectric generator blade nondestructive testing device of claim 1, wherein: the mounting mechanism (4) comprises an inserting rod (41), a slot (42), a clamping rod (43), an end block (44), a first spring (45) and an end buckle (46), wherein the inserting rod (41) is fixedly connected to the ultrasonic nondestructive testing probe (3), the inserting rod (41) is slidably connected with the support frame (2), the slot (42) is formed in the inserting rod (41), the clamping rod (43) is slidably connected with the support frame (2), the clamping rod (43) is slidably connected with the slot (42), the end block (44) is fixedly connected to the inside of the support frame (2), and the end block (44) is slidably connected with the inserting rod (41).

3. The hydroelectric generator blade nondestructive testing device of claim 2, wherein: and the end block (44) is welded with a first spring (45), and the other end of the first spring (45) is welded with the clamping rod (43).

4. The hydroelectric generator blade nondestructive testing device of claim 2, wherein: an end buckle (46) is fixedly connected to the clamping rod (43), and the end buckle (46) is made of rubber.

5. The hydroelectric generator blade nondestructive testing device of claim 1, wherein: the positioning mechanism (10) comprises a clamping groove (101), a top plate (102), a clamping block (103), an end plate (104) and a second spring (105), wherein the clamping groove (101) is formed in the guide cylinder (8), the top plate (102) is connected in a sliding mode in the guide rod (9), the clamping block (103) is fixedly connected to the top plate (102), the clamping block (103) is in sliding connection with the clamping groove (101), the end plate (104) is fixedly connected to the inside of the guide rod (9), and the end plate (104) is in sliding connection with the guide cylinder (8).

6. The hydroelectric generator blade nondestructive testing device of claim 5, wherein: two clamping grooves (101) are formed, and the two clamping grooves (101) are uniformly distributed on the guide cylinder (8).

7. The hydroelectric generator blade nondestructive testing device of claim 5, wherein: and a second spring (105) is welded on the end plate (104), and a top plate (102) at the other end of the second spring (105) is welded.