Nuclear-grade deep hole ultrahigh online nondestructive mechanical property evaluation device

Abstract

The utility model discloses a nuclear grade deep hole ultrahigh online nondestructive mechanical property evaluation device, which relates to the technical field of nuclear facility nondestructive mechanical property detection, and comprises an operation component capable of realizing transverse rotation and vertical lifting functions, a vertical arm component clamped in the operation component, and a power mechanical arm connected to the lower end of the vertical arm component, and the mechanical detection equipment is mounted at the lower end of the power mechanical arm. In nuclear facilities, for nuclear-grade deep hole equipment and equipment which cannot be sampled in active service, the system can obtain mechanical property parameters such as material hardness and strength without destructive sampling, fills the technical blank that destructive sampling is required in a traditional detection method, and has the characteristics of small equipment size, portability, rapidness, no damage, high efficiency, high precision and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of non-destructive mechanical performance detection of nuclear facilities, in particular to a nuclear-grade deep hole ultra-high online non-destructive mechanical performance evaluation device. Background Art

[0002] There are often some areas in nuclear facilities that are inaccessible to personnel. Such areas usually have the characteristics of narrow passages, high radioactive contamination, and large height differences. Some early nuclear facilities were built too early, and most of them have greatly exceeded their design service life. In order to clarify the safety of the facility structure, it is necessary to evaluate the mechanical properties of the facility materials. However, the current mainstream mechanical measurement schemes, such as conventional tensile test methods, three-point bending test methods, etc., which can accurately evaluate the mechanical properties, all require prefabrication of samples, which are destructive sampling, so such methods are not suitable for the evaluation of the mechanical properties of nuclear facilities.

[0003] In view of the current trend of nuclear facility safety monitoring at home and abroad, non-destructive mechanical properties testing methods for nuclear facilities are facing the threshold of large-scale application. In particular, the demand for non-destructive mechanical properties testing in areas inaccessible to staff in nuclear facilities is becoming increasingly urgent. Therefore, it is of great significance to study online material diagnostic equipment with independent intellectual property rights that is different from similar products. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a nuclear-grade deep hole ultra-high online non-destructive mechanical property evaluation device, which can perform online non-destructive mechanical property testing on areas inaccessible to personnel in nuclear facilities.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A nuclear-grade deep hole ultra-high online non-destructive mechanical property evaluation device comprises an operating component capable of realizing lateral rotation and vertical lifting functions, a vertical arm component clamped in the operating component, a power mechanical arm connected to the lower end of the vertical arm component, and a mechanical detection device installed at the lower end of the power mechanical arm.

[0007] Furthermore, the operating component includes a supporting platform, a transverse rotating platform installed on the supporting platform, and a transverse rotating motor and a vertical wall lifting motor installed on the transverse rotating platform; a hole is opened in the middle of the transverse rotating platform, a clamping component is arranged in the hole, and the vertical arm component is clamped in the clamping component.

[0008] Furthermore, a guide rail is installed on the supporting platform, and the transverse rotating platform is installed on the guide rail.

[0009] Furthermore, the power manipulator is provided with multiple sections, each section is equipped with a separate driving system, and a steel wire rope is used to assist in balancing part of the deadweight of the power manipulator.

[0010] Furthermore, a light camera is installed on the power robot arm.

[0011] Furthermore, the vertical arm assembly is provided with multiple sections, and the sections are connected by aviation joints.

[0012] Furthermore, the mechanical detection equipment includes an outer frame and a detection mechanism installed inside the outer frame; the detection mechanism includes a reduction motor, a screw connected to the output end of the reduction motor, a connecting block connected to the screw, a roller guide rail on which the connecting block can move, a travel sensing plate installed on the connecting block for monitoring the displacement data of the connecting block, a load sensor installed at the end of the connecting block, and a contact rod connected to the connecting block; a sensor housing is provided on the outside of the load sensor.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) In nuclear facilities, for nuclear-grade deep hole equipment and equipment that cannot be sampled in service, this system can obtain mechanical properties such as material hardness and strength without destructive sampling, filling the technical gap that traditional detection methods must use destructive sampling. The equipment is small in size, portable, fast, non-destructive, efficient and high-precision.

[0015] (2) The utility model can realize integrated testing services, and multiple mechanical performance parameters can be obtained in one test.

[0016] (3) The utility model adopts a radiation-resistant design and can perform detection operations in an environment with a high radiation dose.

[0017] (4) The vertical assembly of the utility model is provided with multiple sections and is easy to disassemble, which can meet the requirements of the inspection of nuclear facilities at various depths. In addition, the vertical arm assemblies are connected by aviation plugs, which can ensure the strength of use to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 This is the overall diagram of the mechanical testing equipment in the utility model;

[0020] Figure 3 This is an internal structure diagram of the mechanical detection in the utility model.

[0021] Among them, the names corresponding to the figure marks are: 1-vertical arm assembly, 2-vertical arm lifting motor, 3-lateral rotation motor, 4-aviation joint, 5-power mechanical arm, 6-light camera, 7-mechanical detection equipment, 8-lateral rotation platform, 9-support platform, 10-reduction motor, 11-connecting block, 12-screw, 13-roller guide, 14-stroke sensing plate, 15-load sensor, 16-sensor housing, 17-outer frame, 18-detection mechanism, 19-contact rod. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0023] like Figure 1 As shown, this embodiment provides a nuclear-grade deep hole ultra-high online non-destructive mechanical property evaluation device, including a supporting platform 9, a guide rail is installed on the supporting platform 9, a transverse rotating platform 8 is installed on the guide rail, and a transverse rotating motor 3 and a vertical arm lifting motor 2 are installed on the transverse rotating platform 8; a hole is opened in the middle of the transverse rotating platform 8, and a clamping assembly is arranged in the hole, a vertical arm assembly 1 is clamped in the clamping assembly, a power manipulator 5 is connected to the lower end of the vertical arm assembly 1 through a flange interface, a light camera 6 is installed on the power manipulator 5, and a mechanical detection device 7 is installed at the end of the power manipulator 5. The supporting platform 9 provides an ideal rotating contact surface for the transverse rotating platform 8. When transverse rotation is required, the transverse rotating motor 3 provides the transverse rotating platform 8 with corresponding transverse rotating power, and can adjust the transverse rotation speed according to actual needs, thereby driving the vertical arm assembly 1 to rotate transversely; the vertical arm lifting motor 2 can provide the vertical arm assembly 1 with corresponding lifting power, and can adjust the lifting speed according to actual needs; each section of the power manipulator 5 is equipped with a separate drive to control the rotation angle of each joint respectively, and a wire rope auxiliary power can be used to balance part of the dead weight of the power manipulator 5 to meet the power requirements of the power manipulator; the light camera 6 enables the device to work normally in a low visibility environment and record the real-time working status through video.

[0024] In this embodiment, the vertical arm assembly 1 is provided with multiple sections, and the sections are connected by aviation joints 4, so that the vertical arm assembly can maintain sufficient rigidity during use. In actual operation, the vertical arm lifting motor 2 is turned on to make the top of the first section of the vertical arm assembly lowered to be flush with the horizontal rotating platform 8, and then the remaining vertical arm assemblies are connected in turn through the aviation interfaces 4 between the sections of the vertical arm assembly.

[0025] Mechanical testing equipment 7 can obtain mechanical performance parameters such as material hardness and strength without destructive sampling of the object being tested. Figure 2 and3 As shown, the mechanical detection device 7 includes an outer frame 17, and a detection mechanism 18 installed inside the outer frame 17. The detection mechanism 18 includes a reduction motor 10, a lead screw 12 connected to the output end of the reduction motor 10, a connecting block 11 connected to the lead screw 12, a roller guide rail 13 on which the connecting block 11 can move, a travel sensing plate 14 installed on the connecting block 11 and capable of monitoring the displacement data of the connecting block 11, a load sensor 15 installed at the end of the connecting block, and a contact rod 19 connected to the connecting block 11; a sensor housing 16 is provided outside the load sensor 15. During actual use, the outer frame 17 of the mechanical testing equipment 7 is in close contact with the surface of the object to be tested, and the reduction motor 10 is turned on. Through the action of the lead screw 12, the connecting block 11 is driven to move on the roller guide rail 13, and the contact rod 19 presses the surface of the object to be tested and compresses and deforms it. The data is collected through the stroke sensing plate and the load sensor to measure the strength and hardness of the material to be tested. A slender contact rod can also be installed, and under the action of the reduction motor 10, it is made to contact with the object to be tested and cause the surface of the object to be tested to fracture, so as to measure the fracture toughness of the material of the object to be tested.

[0026] The mechanical structure of the entire system is made of high-quality stainless steel. All motors, sealing parts and cables are made of radiation-resistant materials. All individual functional components have special sealed housings to provide a certain degree of radiation shielding.

[0027] When the device provided in this embodiment is in use, the support platform 9 is fixed to the opening position by expansion bolts, and a transverse rotating platform guide rail is installed on the support platform 9. Then, the transverse rotating platform 8 is installed on the guide rail, and the vertical arm lifting motor 2 and the transverse rotating motor 3 are respectively installed on the transverse rotating platform 8, and the power is turned on. Connect the first vertical arm assembly 1 to the power mechanical arm 5 through the flange interface, and connect it to the mechanical detection equipment 7, then hoist the first vertical arm assembly 1 into the hole in the middle of the horizontal rotating platform 8 and clamp it, start the vertical arm lifting motor 2 to place the vertical arm assembly and other equipment into the test environment along the hole, lower the top of the first vertical arm assembly to be flush with the horizontal rotating platform 8, and then connect the remaining vertical arm assemblies through the aviation interface 4, turn on the light camera 6 until it reaches the detection position, start the power mechanical arm 5 to flip it 90° from the vertical state until the outer frame 17 of the mechanical detection equipment 7 is close to the surface of the object to be tested, start the reduction motor 10 on the mechanical measurement equipment 7, and measure the mechanical properties and other parameters such as the hardness and strength of the material at the detection position. After the measurement, turn off the reduction motor 10, flip the power mechanical arm 5 to the vertical position, start the vertical arm lifting motor 2, lift the equipment out of the hole, and complete the entire detection process.

[0028] The utility model is aimed at some nuclear facility environments with characteristics such as narrow passages, high radioactive contamination, and large height differences. Compared with traditional measuring devices, the utility model does not require destructive sampling and can complete measurements quickly and accurately while ensuring the safety of nuclear facilities.

[0029] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A nuclear-grade deep hole ultra-high online non-destructive mechanical properties evaluation device, characterized in that: The invention comprises an operating component capable of realizing lateral rotation and vertical lifting functions, a vertical arm component (1) clamped in the operating component, a power mechanical arm (5) connected to the lower end of the vertical arm component (1), and a mechanical detection device (7) installed at the lower end of the power mechanical arm (5).

2. The nuclear-grade deep hole ultra-high online non-destructive mechanical properties evaluation device according to claim 1 is characterized in that: The operating assembly comprises a supporting platform (9) for supporting, a transverse rotating platform (8) mounted on the supporting platform (9), and a transverse rotating motor (3) and a vertical wall lifting motor (2) mounted on the transverse rotating platform (8); a hole is provided in the middle of the transverse rotating platform (8), a clamping assembly is arranged in the hole, and the vertical arm assembly (1) is clamped in the clamping assembly.

3. The nuclear-grade deep hole ultra-high online non-destructive mechanical properties evaluation device according to claim 2 is characterized in that: A guide rail is installed on the supporting platform (9), and the transverse rotating platform (8) is installed on the guide rail.

4. The nuclear-grade deep hole ultra-high online non-destructive mechanical property evaluation device according to claim 3 is characterized in that: The power mechanical arm (5) is provided with multiple sections, each section is equipped with a separate driving system, and a steel wire rope is used to assist the power balance of part of the deadweight of the power mechanical arm (5).

5. The nuclear-grade deep hole ultra-high online non-destructive mechanical property evaluation device according to claim 4, characterized in that: A light camera (6) is installed on the power mechanical arm (5).

6. The nuclear-grade deep hole ultra-high online non-destructive mechanical property evaluation device according to claim 5, characterized in that: The vertical arm assembly (1) is provided with a plurality of sections, and the sections are connected by aviation joints (4).

7. A nuclear-grade deep hole ultra-high online non-destructive mechanical property evaluation device according to any one of claims 1 to 6, characterized in that: The mechanical detection device (7) comprises an outer frame (17) and a detection mechanism (18) installed inside the outer frame (17); the detection mechanism (18) comprises a reduction motor (10), a lead screw (12) connected to the output end of the reduction motor (10), a connecting block (11) connected to the lead screw (12), a roller guide rail (13) on which the connecting block (11) can move, a stroke sensing plate (14) installed on the connecting block (11) and capable of monitoring displacement data of the connecting block (11), a load sensor (15) installed at the end of the connecting block, and a contact rod (19) connected to the connecting block (11); a sensor housing (16) is arranged outside the load sensor (15).

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