Probe Calibration Device

Abstract

The present disclosure belongs to the field of nuclear power technology, and particularly relates to a calibration device for a detection head. In the present disclosure, the dimension calibration assembly includes a detection head dimension identification sensor and a detection head dimension identification auxiliary light source; the detection head dimension identification sensor and the detection head dimension identification auxiliary light source are respectively arranged at two ends of the calibration device bracket; the standard pressure sensor is fixedly arranged on the pressure sensor mounting seat, and the pressure sensor mounting seat is slidably connected with the sensor moving slide; the elastic telescopic support rod is fixed on the sensor moving slide, and the sensor moving slide is slidably connected with the sensor mounting bracket. The calibration device of the present disclosure can calibrate the working dimension and the force value transfer parameter of the detection head online through the dimension calibration assembly and the force value calibration assembly arranged on the calibration device bracket, and can be adjusted when the detection head is deformed and has a large error due to various external factors, so as to ensure the measurement accuracy and efficiency, and has the value of popularization and application.

Description

Technical Field

[0001] The present invention belongs to the technical field of nuclear power, and particularly relates to a detection head calibration device. Background Art

[0002] The grid is a component of a nuclear fuel assembly, used to support and position nuclear fuel rods. Generally, spring members provided thereon are used to hold and limit the positions of the nuclear fuel rods placed therein. Since the grid needs to effectively support and position the nuclear fuel rods, it is necessary to detect whether the clamping force of the spring members can meet the requirements of support and positioning during application after the grid is manufactured. Currently in this field, the manual method is usually adopted, with low detection efficiency and unsatisfactory detection accuracy. In addition, there are existing technologies with devices that can automatically detect this clamping force, but they cannot solve the problem of automatic calibration of the detection head, resulting in low detection efficiency. Therefore, there is room for improvement. Summary of the Invention

[0003] To overcome the problems existing in the related art, a detection head calibration device is provided.

[0004] According to one aspect of the embodiments of the present disclosure, a detection head calibration device is provided, and the detection head calibration device includes: a dimension calibration component and a force value calibration component;

[0005] Both the dimension calibration component and the force value calibration component are fixed on the calibration device bracket 1111. The dimension calibration component includes a detection head dimension recognition sensor 1101 and a detection head dimension recognition auxiliary light source 1102;

[0006] The detection head dimension recognition sensor 1101 is arranged at one end of the calibration device bracket 1111, and the detection head dimension recognition auxiliary light source 1102 is arranged at the other end of the calibration device bracket 1111;

[0007] The force value calibration component includes a standard pressure sensor 1103, a pressure sensor mounting seat 1106, a sensor moving slide 1107, a sensor mounting bracket 1108, a slide moving drive motor 1109, and an elastic telescopic support rod 1110. The standard pressure sensor 1103 is fixedly arranged on the pressure sensor mounting seat 1106. The pressure sensor mounting seat 1106 is slidably connected to the sensor moving slide 1107. The elastic telescopic support rod 1110 is fixed to the sensor moving slide 1107. The sensor moving slide 1107 is slidably connected to the sensor mounting bracket 1108. The slide moving drive motor 1109 is fixedly arranged on the sensor mounting bracket 1108. The slide moving drive motor 1109 can drive the sensor moving slide 1107 to slide. The upper surface of the sensor mounting bracket 1108 has a convex part extending axially upward. The convex part faces the detection surface of the standard pressure sensor 1103. The position between the detection surface of the standard pressure sensor 1103 and the convex part of the sensor mounting bracket 1108 is the detection position. The detection surface of the detection head size identification sensor 1101 and the detection head size identification auxiliary light source 1102 face this detection position.

[0008] In a possible implementation manner, the detection head calibration device further includes: a calibration bracket 1104;

[0009] The calibration bracket 1104 is arranged on the calibration device bracket 1111. The calibration bracket 1104 has a calibration plate, which is used to calibrate the detection head size identification sensor 1101.

[0010] In a possible implementation manner, the detection head calibration device further includes: a rotating motor 1105;

[0011] The calibration bracket 1104 is connected to the driving end of the rotating motor 1105. The rotating motor 1105 is fixedly connected to the calibration device bracket 1111;

[0012] When the detection head size identification sensor 1101 does not need to be calibrated, the rotating motor 1105 drives the calibration bracket 1104 to rotate to the lower part of the calibration device bracket 1111;

[0013] When the detection head size identification sensor 1101 needs to be calibrated, the rotating motor 1105 drives the calibration bracket 1104 to rotate to the upper part of the calibration device bracket 1111 and makes the calibration plate of the calibration bracket 1104 face the detection head size identification sensor 1101.

[0014] In a possible implementation manner, the telescopic end of the sensor moving slide 1107 is fixedly connected to the pressure sensor mounting seat 1106.

[0015] In a possible implementation, the movable end of the elastic telescopic support rod 1110 is fixedly connected to the pressure sensor mounting seat 1106, and the elastic telescopic support rod 1110 can continuously apply a pressure towards the protruding part of the mounting bracket 1108 to the pressure sensor mounting seat 1106.

[0016] The beneficial effects of the present disclosure are as follows: the calibration device of the present disclosure can automatically calibrate the working size and force value transfer parameters of the detection head online, and can be adjusted when the detection head is deformed and has a large error due to various external factors, so as to ensure the measurement accuracy and efficiency, and has the value of popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic diagram of a detection head calibration device shown according to an exemplary embodiment.

[0018] Figure 2 FIG. is a schematic diagram of a detection head calibration device shown according to an exemplary embodiment.

[0019] In the figure:

[0020] 1101, detection head size recognition sensor; 1102, detection head size recognition auxiliary light source;

[0021] 1103, standard pressure sensor; 1104, calibration bracket; 1105, rotation motor;

[0022] 1106, pressure sensor mounting seat; 1107, sensor moving slide; 1108, sensor mounting bracket;

[0023] 1109, slide moving drive motor; 1110, elastic telescopic support rod; 1111, calibration device bracket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 FIG. is a schematic diagram of a detection head calibration device shown according to an exemplary embodiment. Figure 2 FIG. is a schematic diagram of a detection head calibration device shown according to an exemplary embodiment. As Figure 1 and Figure 2As shown in the figure: The detection head calibration device includes a dimension calibration component and a force value calibration component. Both the dimension calibration component and the force value calibration component are fixed on the calibration device bracket 1111. The dimension calibration component consists of a detection head dimension recognition sensor 1101 and a detection head dimension recognition auxiliary light source 1102. The detection head dimension recognition sensor 1101 and the detection head dimension recognition auxiliary light source 1102 are respectively located at both ends of the calibration device bracket 1111. The detection position is between the detection head dimension recognition sensor 1101 and the detection head dimension recognition auxiliary light source 1102.

[0026] The force value calibration component includes a standard pressure sensor 1103, a pressure sensor mounting seat 1106, a sensor moving slide 1107, a sensor mounting bracket 1108, a slide moving drive motor 1109, and an elastic telescopic support rod 1110. The standard pressure sensor 1103 is fixedly arranged on the pressure sensor mounting seat 1106. The pressure sensor mounting seat 1106 is slidably connected to the sensor moving slide 1107. The elastic telescopic support rod 1110 is fixed on the sensor moving slide 1107. The sensor moving slide 1107 is slidably connected to the sensor mounting bracket 1108. The slide moving drive motor 1109 is fixedly arranged on the sensor mounting bracket 1108. The slide moving drive motor 1109 drives the sensor moving slide 1107 to slide. The rotation motor 1105 is fixedly arranged on the calibration device bracket 1111. The position between the standard pressure sensor 1103 and the protrusion of the sensor mounting bracket 1108 is the detection position. The detection surface of the detection head dimension recognition sensor 1101 and the detection head dimension recognition auxiliary light source 1102 face this detection position.

[0027] When the detection head calibration device is in use, move the detection end of the grid spring clamping force detection head to the position between the standard pressure sensor 1103 and the protrusion of the sensor mounting bracket 1108. At the same time, the grid spring clamping force detection head is between the detection head dimension recognition sensor 1101 and the detection head dimension recognition auxiliary light source 1102.

[0028] First, calibrate the working dimension of the grid spring clamping force detection head. Make the grid spring clamping force detection head located at the position between the standard pressure sensor 1103 and the protrusion of the sensor mounting bracket 1108. Turn on the detection head dimension recognition auxiliary light source 1102. The grid spring clamping force detection head opens to the limit dimension. The detection head dimension recognition sensor 1101 measures the working dimension of the grid spring clamping force detection head. If the working dimension of the grid spring clamping force detection head is within the qualified range, the calibration ends. If the deviation of the working dimension of the grid spring clamping force detection head is too large, adjust the limit block of the grid spring clamping force detection head according to the dimension value measured by the detection head dimension recognition sensor 1101 to make its working dimension within the qualified range.

[0029] After the working dimensions of the grid spring clamping force detection head are calibrated to be qualified, the mechanical transfer parameters of the grid spring clamping force detection head can be obtained next. For example, the sensor moving slide 1107 can be driven by the slide moving drive motor 1109 to move towards the protruding part of the sensor mounting bracket 1108 until the standard pressure sensor 1103 contacts the detection end of the grid spring clamping force detection head. Then, the elastic telescopic support rod 1110 is driven to continuously apply pressure to the standard pressure sensor 1103 within a preset time period, so that the standard pressure sensor detects the pressure received by the grid spring clamping force detection head, and the mechanical transfer parameters of the grid spring clamping force detection head are adjusted based on this standard.

[0030] In a possible implementation manner, the calibration bracket 1104 is connected to the drive end of the rotation motor 1105, and the rotation motor 1105 is fixedly connected to the calibration device bracket 1111;

[0031] When it is not necessary to calibrate the detection head size recognition sensor 1101 (for example, when the detection head size recognition sensor 1101 is in a working state, or when the detection head size recognition sensor 1101 has been calibrated and is waiting for work), the rotation motor 1105 can be used to drive the calibration bracket 1104 to rotate below the calibration device bracket 1111;

[0032] When it is necessary to calibrate the detection head size recognition sensor 1101, the rotation motor 1105 is used to drive the calibration bracket 1104 to rotate above the calibration device bracket 1111, and the calibration plate of the calibration bracket 1104 is aligned with the detection head size recognition sensor 1101. In this way, by driving the calibration bracket 1104 to rotate to different positions by the rotation motor 1105, the detection head size recognition sensor 1101 can be calibrated flexibly according to the calibration requirements, and the normal detection work of the detection head size recognition sensor 1101 can be not affected.

[0033] The calibration device of the present disclosure can automatically calibrate the working dimensions and force value transfer parameters of the detection head online, and can be adjusted when the detection head is deformed or has a large error due to various external factors, so as to ensure the measurement accuracy and efficiency, and has the value of popularization and application.

[0034] The above has described the embodiments of the present disclosure. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the technical improvement of the technology in the market, or to enable other ordinary technical personnel in the technical field to understand the embodiments disclosed herein.

Claims

1. A detection head calibration device, characterized in that, the detection head calibration device includes: a dimension calibration component and a force value calibration component; The dimension calibration component and the force value calibration component are both fixed on the calibration device bracket (1111). The dimension calibration component includes a detection head dimension recognition sensor (1101) and a detection head dimension recognition auxiliary light source (1102); The detection head dimension recognition sensor (1101) is arranged at one end of the calibration device bracket (1111), and the detection head dimension recognition auxiliary light source (1102) is arranged at the other end of the calibration device bracket (1111); The force value calibration component includes a standard pressure sensor (1103), a pressure sensor mounting seat (1106), a sensor moving slide (1107), a sensor mounting bracket (1108), a slide moving drive motor (1109) and an elastic telescopic support rod (1110). The standard pressure sensor (1103) is fixedly arranged on the pressure sensor mounting seat (1106). The pressure sensor mounting seat (1106) is slidably connected to the sensor moving slide (1107). The elastic telescopic support rod (1110) is fixed to the sensor moving slide (1107). The sensor moving slide (1107) is slidably connected to the sensor mounting bracket (1108). The slide moving drive motor (1109) is fixedly arranged on the sensor mounting bracket (1108). The slide moving drive motor (1109) can drive the sensor moving slide (1107) to slide. The upper surface of the sensor mounting bracket (1108) has a convex part extending axially upward. The convex part faces the detection surface of the standard pressure sensor (1103). The position between the detection surface of the standard pressure sensor (1103) and the convex part of the sensor mounting bracket (1108) is the detection position. The detection surface of the detection head dimension recognition sensor (1101) and the detection head dimension recognition auxiliary light source (1102) face this detection position.

2. The detection head calibration device according to claim 1, characterized in that, the detection head calibration device further includes: a calibration bracket (1104); The calibration bracket (1104) is arranged on the calibration device bracket (1111). The calibration bracket (1104) has a calibration plate, and this calibration plate is just used to calibrate the detection head dimension recognition sensor (1101).

3. The detection head calibration device according to claim 2, characterized in that, the detection head calibration device further includes: a rotating motor (1105); The calibration bracket (1104) is connected to the driving end of the rotating motor (1105), and the rotating motor (1105) is fixedly connected to the calibration device bracket (1111); When the detection head dimension recognition sensor (1101) does not need to be calibrated, the calibration bracket (1104) is driven by the rotating motor (1105) to rotate to the lower part of the calibration device bracket (1111); When it is necessary to calibrate the detection head size recognition sensor (1101), the calibration bracket (1104) is driven by the rotation motor (1105) to rotate above the calibration device bracket (1111), and the calibration plate of the calibration bracket (1104) faces the detection head size recognition sensor (1101).

4. The detection head calibration device according to claim 1, characterized in that, A fixed connection is provided between the telescopic end of the sensor moving slide (1107) and the pressure sensor mounting seat (1106).

5. The detection head calibration device according to claim 1, characterized in that, The movable end of the elastic telescopic support rod (1110) is fixedly connected to the pressure sensor mounting seat (1106), and the elastic telescopic support rod (1110) can continuously apply pressure to the pressure sensor mounting seat (1106) in the direction of the convex part of the mounting bracket (1108).

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