Electromagnetic ultrasonic high-temperature probe shell and electromagnetic ultrasonic high-temperature probe

Abstract

The electromagnetic ultrasonic high-temperature probe shell comprises a main shell body, a connecting rod and a high-temperature probe body which are sequentially connected in the axial direction, and the end, close to the high-temperature probe body, of the connecting rod is sleeved with a heat insulation sleeve in a clearance fit mode; the heat insulation sleeve extends to the high-temperature probe in a clearance fit mode, the connecting rod is further provided with a driving structure which is used for driving the heat insulation sleeve to move directionally and protrudes out of the high-temperature probe by a preset distance in the axial direction, and the connecting rod is evenly provided with scale marks at the position of the driving structure in the axial direction. Therefore, the distance of the heat insulation sleeve protruding out of the high-temperature probe can be flexibly adjusted so as to meet different detection requirements, and meanwhile, the adjustment precision is high, and adjustment is convenient.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature probe equipment technology, and in particular to the housing of an electromagnetic ultrasonic high-temperature probe and the electromagnetic ultrasonic high-temperature probe itself. Background Technology

[0002] Electromagnetic ultrasound is a newly developed non-destructive testing technology that can be applied to a variety of testing scenarios. However, for some high-temperature test objects, the temperature may be above 300°C or even as high as 800°C, which can easily damage the electromagnetic ultrasound probe and affect its normal working life.

[0003] In the existing technology, there are also some electromagnetic ultrasonic high-temperature probes, which have a high-temperature resistant isolation ring set at the detection end of the high-temperature probe housing. During the detection process, the high-temperature resistant isolation ring separates the detection end of the high-temperature probe from the target object by a certain distance, so as to both meet the detection requirements and protect the high-temperature probe.

[0004] However, existing high-temperature isolation rings fall into two categories: one is fixed to the end of the high-temperature probe, which is insufficient to flexibly meet different testing needs; the other is directly screwed onto the end of the high-temperature probe using a threaded connection. While this allows adjustment of the distance between the high-temperature probe and the target object, it is difficult to precisely adjust this distance, requires a high level of skill from the operator, and is inconvenient to use. Furthermore, neither of these existing high-temperature isolation methods can completely isolate the probe from the high-temperature target object, allowing the high temperature to be directly conducted to the probe components, potentially causing damage. Utility Model Content

[0005] This application provides an electromagnetic ultrasonic high-temperature probe housing and an electromagnetic ultrasonic high-temperature probe, which can flexibly adjust the distance of the heat insulation sleeve protruding from the high-temperature probe to meet different detection needs, while also having high adjustment accuracy and being easy to adjust.

[0006] The first aspect of this application provides an electromagnetic ultrasonic high-temperature probe housing, including a main housing, a connecting rod, and a high-temperature probe connected sequentially along the axial direction. A heat-insulating sleeve is fitted onto one end of the connecting rod near the high-temperature probe in a clearance fit manner. The heat-insulating sleeve extends to the high-temperature probe in a clearance fit manner. The connecting rod is further provided with a driving structure for driving the heat-insulating sleeve to move directionally and protrude a predetermined distance from the high-temperature probe along the axial direction. The connecting rod is uniformly provided with scale lines along the axial direction at the driving structure to indicate the protrusion distance of the heat-insulating sleeve from the high-temperature probe.

[0007] In one possible implementation, the main housing is fixedly connected to an adapter at the end near the connecting rod, one end of the connecting rod is threaded to the adapter, and the other end of the connecting rod is threaded to the high-temperature probe.

[0008] In one possible implementation, the connecting rod has a first limiting step at one end near the high-temperature probe. The driving structure includes a nut and an elastic element. The nut is threaded onto the connecting rod and is located near the inner side of the first limiting step. The heat-insulating sleeve is directly opposite the nut and has a second limiting step at its inner end. The elastic element is fitted onto the connecting rod, and its two ends elastically abut against the first limiting step and the second limiting step, respectively. The scale line is directly opposite the nut.

[0009] In one possible implementation, the connecting rod is further provided with a limiting member inside the nut, the limiting member being configured such that when the nut is screwed to the limiting member, the heat insulation sleeve protrudes from the high-temperature probe and approaches the end of the high-temperature probe.

[0010] In one possible implementation, the limiting element is a limiting pin or a limiting screw.

[0011] In one possible implementation, the elastic element is a spring.

[0012] In one possible implementation, the first limiting step is an annular step or a plurality of first limiting protrusions spaced apart; the second limiting step is an annular step or a plurality of second limiting protrusions spaced apart.

[0013] In one possible implementation, the nut has a cooling boss along its circumference on the side near the heat insulation sleeve, and the nut is connected to the heat insulation sleeve through the cooling boss.

[0014] In one possible implementation, two or three process grooves are uniformly formed on the outer surface of the high-temperature probe along the circumference, the process grooves extend along the axial direction, and the inner side of the heat insulation sleeve is provided with a strip-shaped process block that cooperates with the process grooves.

[0015] The second aspect of this application provides an electromagnetic ultrasonic high-temperature probe, including the aforementioned electromagnetic ultrasonic high-temperature probe housing, wherein a connecting plate is provided inside the main housing, a header is provided on one side of the connecting plate for connecting to the header pins on the electromagnetic ultrasonic host, and a high-temperature cable is connected to the other side of the connecting plate, the high-temperature cable passing through the connecting rod inside and connecting to the probe transducer inside the high-temperature probe.

[0016] Beneficial Effects: Compared with existing technologies, the electromagnetic ultrasonic high-temperature probe housing and probe provided in this application can flexibly adjust the distance of the heat insulation sleeve protruding from the high-temperature probe by driving the heat insulation sleeve to move in a directional manner through the driving structure. The protrusion distance of the heat insulation sleeve from the high-temperature probe can be directly read by the naked eye through the scale lines on the connecting rod. The operation is simple, which can improve the detection accuracy of the electromagnetic ultrasonic high-temperature probe and reduce the skill requirements of the operator, making it convenient to use. At the same time, compared with existing technologies, the heat insulation sleeve provided in this application can basically isolate the probe and the high-temperature test object, thereby greatly reducing the damage to the probe caused by high temperature conduction.

[0017] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the electromagnetic ultrasonic high-temperature probe housing of this application is shown.

[0019] Figure 2 A partial cross-sectional view of the housing of the electromagnetic ultrasonic high-temperature probe of this application is shown.

[0020] Figure 3 An enlarged schematic diagram of the end structure of the connecting rod in this application is shown.

[0021] Figure 4 A partial structural schematic diagram of the electromagnetic ultrasonic high-temperature probe of this application is shown. Detailed Implementation

[0022] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0023] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0024] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0025] refer to Figures 1 to 4 The first aspect of this application provides an electromagnetic ultrasonic high-temperature probe housing, which includes a main housing 10, a connecting rod 20, and a high-temperature probe 30 connected sequentially along the axial direction. A heat-insulating sleeve 40 is fitted onto one end of the connecting rod 20 near the high-temperature probe 30 with a clearance fit. The heat-insulating sleeve 40 extends to the high-temperature probe 30 with a clearance fit (the clearance can be 0.5 mm or other suitable values). This clearance greatly reduces the heat transferred from the heat-insulating sleeve 40 to the high-temperature probe 30 and the connecting rod 20, resulting in better heat insulation and significantly reduced high-temperature conduction. The connecting rod 20 also has a axially protruding feature for driving the heat-insulating sleeve 40 to move in a directional manner. The high-temperature probe 30 has a predetermined driving structure, and the connecting rod 20 is uniformly provided with scale lines 21 along the axial direction at the driving structure to display the protrusion distance of the heat insulation sleeve 40 from the high-temperature probe 30. The scale lines 21 can also be understood as scale values. In this way, on the one hand, the distance of the heat insulation sleeve 40 protruding from the high-temperature probe 30 can be flexibly adjusted by the driving structure to adapt to different detection needs. On the other hand, after adjusting the protrusion distance of the heat insulation sleeve 40, the specific data of the heat insulation sleeve 40 protruding from the high-temperature probe 30 can be directly read by the naked eye through the scale lines 21. This can improve the detection accuracy of the electromagnetic ultrasonic high-temperature probe, reduce the skill requirements of the operator, and make it more convenient to use.

[0026] In one embodiment, the main housing 10 is fixedly connected to an adapter 11 at the end near the connecting rod 20, wherein one end of the connecting rod 20 is threadedly connected to the adapter 11, and the other end of the connecting rod 20 is threadedly connected to the high-temperature probe 30, thereby facilitating the quick connection and disassembly of the entire probe housing and making maintenance easier.

[0027] In one embodiment, the connecting rod 20 has a first limiting step 22 at one end near the high-temperature probe 30. The driving structure includes a nut 51 and an elastic element 52. The nut 51 is threaded onto the connecting rod 20 and is located near the inner side of the first limiting step 22. The heat insulation sleeve 40 faces the nut 51 and has a second limiting step 41 at its inner end. The elastic element 52 is fitted onto the connecting rod 20, and its two ends elastically abut against the first limiting step 22 and the second limiting step 41, respectively. The scale line 21 faces the nut 51. Thus, in the initial state, at the outer end of the axial direction, the heat insulation sleeve 40 is subjected to the rebound force of the elastic element 52 through the second limiting structure 41. At the inner end of the axial direction, the heat insulation sleeve 40 is blocked by the nut 51, so that the heat insulation sleeve 40 can be held in a predetermined position, thereby ensuring that the electromagnetic ultrasonic high temperature probe can perform detection smoothly. The elastic element 52 is preferably a spring, more preferably a hard spring that is not easily deformed (such as a high carbon steel or alloy steel hard spring). During the detection process, even if there is a certain downward pressure on the target object at the heat insulation sleeve 40, the position of the heat insulation sleeve 40 will not change. In addition, since the amount of protrusion displacement of the heat insulation sleeve 40 does not change significantly for different detection needs, the protrusion position of the heat insulation sleeve 40 can be changed by rotating the nut 51 to further compress the elastic element 52.

[0028] Therefore, the protrusion distance of the heat insulation sleeve 40 over the high temperature probe 30 can be directly changed by rotating the nut 51, converting the rotational movement of the nut 51 on the connecting rod 20 into the axial movement of the heat insulation sleeve 40. Even if the heat insulation sleeve 40 rotates slightly, it will not affect the protrusion distance of the heat insulation sleeve 40 over the high temperature probe 30. After the nut 51 moves, the axial movement distance of the nut 51 can be directly read through the scale line 21 at the nut 51, which is the movement distance of the heat insulation sleeve 40.

[0029] In one embodiment, the connecting rod 20 is further provided with a limiting member 23 on the inner side of the nut 51. The limiting member 23 is configured such that when the nut 51 is screwed to the limiting member 23, the heat insulation sleeve 40 protrudes from the high temperature probe 30 and is close to the end of the high temperature probe 30. This allows the limiting member 23 to limit the nut 51, thereby preventing the nut 51 from moving too inward and causing the heat insulation sleeve 40 to fail to protrude from the high temperature probe 30, which could damage the high temperature probe 30. The limiting member 23 is preferably a limiting pin or a limiting screw.

[0030] In one embodiment, the first limiting step 22 is an annular step or a plurality of spaced first limiting protrusions, all of which can serve to limit the elastic member 52; similarly, the second limiting step 41 is an annular step or a plurality of spaced second limiting protrusions.

[0031] In one embodiment, the nut 51 has a heat-reducing boss 511 circumferentially arranged on the side near the heat-insulating sleeve 40. The nut 51 is connected to the heat-insulating sleeve 40 via the heat-reducing boss 511. This reduces the contact area between the nut 51 and the heat-insulating sleeve 40, further reducing temperature transfer from the heat-insulating sleeve 40 to the nut 51 and decreasing contact friction between the nut 51 and the heat-insulating sleeve 40 during rotation. Furthermore, the nut 51 is a knurled nut. The knurling on its outer surface increases friction during manual tightening, making it easier to control the back-and-forth movement of the heat-insulating sleeve 40.

[0032] In one embodiment, the outer surface of the high-temperature probe 30 is uniformly provided with two or three process grooves 301 along the circumference, and the process grooves 301 extend along the axial direction. At the same time, the inner side of the heat insulation sleeve 40 is provided with a strip-shaped process block 42 that cooperates with the process grooves 301. Thus, the cooperation between the process grooves 301 and the strip-shaped process block 42 can both guide the heat insulation sleeve 40 in the axial direction and support the heat insulation sleeve 40, so as to ensure that the heat insulation sleeve 40 and the high-temperature probe 30 maintain a set heat insulation gap and ensure the heat insulation effect.

[0033] The second aspect of this application provides an electromagnetic ultrasonic high-temperature probe, including the aforementioned electromagnetic ultrasonic high-temperature probe housing. The main housing 10 is provided with a connecting plate 12. One side of the connecting plate 12 is provided with a header for connecting to the header pins on the electromagnetic ultrasonic host. The other side of the connecting plate 12 is connected to a high-temperature cable. The high-temperature cable passes through the connecting rod 20 and connects to the probe transducer inside the high-temperature probe 30.

[0034] It should be noted that the terms "first" and "second" used in this application are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A housing for an electromagnetic ultrasonic high-temperature probe, characterized in that, The device includes a main housing, a connecting rod, and a high-temperature probe connected sequentially along the axial direction. A heat-insulating sleeve is fitted onto one end of the connecting rod near the high-temperature probe with a clearance fit. The heat-insulating sleeve extends to the high-temperature probe with a clearance fit. The connecting rod also has a driving structure for driving the heat-insulating sleeve to move directionally and protrude a predetermined distance from the high-temperature probe along the axial direction. The connecting rod has uniformly spaced graduation lines along the axial direction at the driving structure to indicate the protrusion distance of the heat-insulating sleeve from the high-temperature probe.

2. The electromagnetic ultrasonic high-temperature probe housing as described in claim 1, characterized in that, The main housing is fixedly connected to an adapter at the end near the connecting rod. One end of the connecting rod is threaded to the adapter, and the other end of the connecting rod is threaded to the high-temperature probe.

3. The electromagnetic ultrasonic high-temperature probe housing as described in claim 1, characterized in that, The connecting rod has a first limiting step at one end near the high-temperature probe. The driving structure includes a nut and an elastic element. The nut is threaded onto the connecting rod and is located near the inner side of the first limiting step. The heat insulation sleeve is directly opposite the nut and has a second limiting step at its inner end. The elastic element is sleeved on the connecting rod, and its two ends elastically abut against the first limiting step and the second limiting step, respectively. The scale line is directly opposite the nut.

4. The electromagnetic ultrasonic high-temperature probe housing as described in claim 3, characterized in that, The connecting rod is also provided with a limiting member inside the nut. The limiting member is configured such that when the nut is screwed to the limiting member, the heat insulation sleeve protrudes from the high temperature probe and approaches the end of the high temperature probe.

5. The electromagnetic ultrasonic high-temperature probe housing as described in claim 4, characterized in that, The limiting component is a limiting pin or a limiting screw.

6. The electromagnetic ultrasonic high-temperature probe housing as described in claim 3, characterized in that, The elastic element is a spring.

7. The electromagnetic ultrasonic high-temperature probe housing as described in claim 3, characterized in that, The first limiting step is a ring-shaped step or a plurality of first limiting protrusions spaced apart; the second limiting step is a ring-shaped step or a plurality of second limiting protrusions spaced apart.

8. The electromagnetic ultrasonic high-temperature probe housing as described in claim 3, characterized in that, The nut has a cooling boss along its circumference on the side near the heat insulation sleeve, and the nut is connected to the heat insulation sleeve through the cooling boss.

9. The electromagnetic ultrasonic high-temperature probe housing as described in claim 1, characterized in that, The outer surface of the high-temperature probe is uniformly provided with two or three process grooves along the circumference, the process grooves extend along the axial direction, and the inner side of the heat insulation sleeve is provided with a strip-shaped process block that cooperates with the process grooves.

10. An electromagnetic ultrasonic high-temperature probe, characterized in that, The device includes the electromagnetic ultrasound high-temperature probe housing as described in any one of claims 1 to 9, wherein a connecting plate is provided inside the main housing, a header is provided on one side of the connecting plate for connecting to the header pins on the electromagnetic ultrasound host, and a high-temperature cable is connected to the other side of the connecting plate, the high-temperature cable passing through the connecting rod inside and connecting to the probe transducer inside the high-temperature probe.

Images