A calibration device for a pressure gauge intelligent verification device reading system
Patent Information
- Application Number
- CN202521928872.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-09-08
AI Technical Summary
为了压力表智能检定装置的读数装置的测量结果准确，需要通过校准装置来对其进行校准，现有未有相关校准装置实现对其的校准工作
[0016]本实用新型提供的用于压力表智能检定装置读数系统的校准装置，通过将表盘及各刻度线采用传统压力表的设置方式保持一致，且刻度线的测量范围、间距均符合规范要求且量值准确；使用时，将本装置放置在压力表智能检定装置读数系统的待测位置上，通过驱动机构带动指针指向表盘上的某个压力值位置，并且通过角度检测器获取指针旋转的角度来保证表盘上各刻度线对应的显示值的准确可靠性；然后通过压力表智能检定装置读数系统所测量获得的测得值，通过两者的比较来实现对压力表智能检定装置读数系统的校准；从而保证压力表智能检定装置读数系统的测量准确性。
Smart Images
Figure CN224815848U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure testing and calibration equipment technology, and in particular to a calibration device for a reading system of a pressure gauge intelligent verification device. Background Technology
[0002] Pressure gauges play a crucial role in railway systems, primarily used to monitor and control the pressure of various fluids to ensure the safe, reliable, and efficient operation of trains. They are found throughout train braking and power systems. To ensure the reliability of pressure gauge readings, they need to be calibrated regularly. Intelligent pressure gauge calibration devices, as a new type of calibration equipment, are simple and convenient to operate and are likely to be widely used in pressure gauge calibration in the future.
[0003] The reading device of the intelligent pressure gauge calibration device "sees" the dial through machine vision, uses image processing algorithms to "identify" the pointer position and scale information, and then uses mathematical conversion to accurately convert the pointer angle into the corresponding pressure value, ultimately achieving automated and high-precision pressure gauge calibration readings. To ensure the accuracy of the reading device's measurement results, it needs to be calibrated using a calibration device; currently, there is no suitable calibration device available to perform this calibration. Utility Model Content
[0004] The purpose of this invention is to provide a calibration device for the reading system of a pressure gauge intelligent calibration device, so as to solve the problems existing in the prior art and achieve accurate and reliable calibration.
[0005] To achieve the above objectives, this utility model provides the following solution:
[0006] This utility model provides a calibration device for a reading system of an intelligent pressure gauge calibration device, including a dial, a pointer, a drive mechanism, and an angle detector; the dial is provided with multiple scale lines; one end of the pointer is rotatably mounted on the dial around a first axis; and the other end of the pointer is used to indicate the scale line; the drive mechanism is used to drive the pointer to rotate around the first axis; and the angle detector is used to detect the rotation angle of the pointer.
[0007] Preferably, the driving mechanism includes a drive motor and a first gear; the drive motor is fixedly mounted on the dial, and the first gear and the pointer are located on the same side of the dial; the first gear is fixedly mounted on the output shaft of the drive motor; a transmission gear is fixedly mounted on the shaft of the pointer; the first gear meshes with the transmission gear for transmission.
[0008] Preferably, the angle detector includes an encoder and a second gear; the encoder is fixedly mounted on the dial, and the second gear is fixedly mounted on the output shaft of the encoder; the second gear meshes with the transmission gear for transmission.
[0009] Preferably, the drive motor is a servo motor.
[0010] Preferably, the first gear and the second gear are positioned opposite each other on opposite sides of the pointer.
[0011] Preferably, the first gear and the second gear have the same structure.
[0012] Preferably, it also includes a watch case, and the dial is fixedly mounted on the watch case.
[0013] Preferably, the pointer is used to indicate that one end of the scale line is a pointed tip.
[0014] Preferably, the scale lines are provided with reading numbers at corresponding positions.
[0015] The present invention achieves the following technical advantages over the prior art:
[0016] This utility model provides a calibration device for the reading system of a pressure gauge intelligent calibration device. By maintaining the same dial and scale settings as traditional pressure gauges, and ensuring that the measurement range and spacing of the scales meet specifications and the values are accurate, the device is used. In operation, the device is placed at the test position on the pressure gauge intelligent calibration device reading system. A drive mechanism moves the pointer to a specific pressure value on the dial, and an angle detector obtains the pointer's rotation angle to ensure the accuracy and reliability of the displayed values corresponding to each scale line on the dial. The device is then calibrated by comparing the measured values obtained from the pressure gauge intelligent calibration device reading system with the measured values obtained from the test. This ensures the measurement accuracy of the pressure gauge intelligent calibration device reading system. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of the calibration device for the reading system of the intelligent calibration device for pressure gauges provided by this utility model.
[0019] In the diagram: 1-Case; 2-Dial; 3-Pointer; 4-First gear; 5-Servo motor; 6-Second gear; 7-Encoder. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] The purpose of this invention is to provide a calibration device for the reading system of a pressure gauge intelligent calibration device, so as to solve the problems existing in the prior art and achieve accurate and reliable calibration.
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] Example 1
[0024] This embodiment provides a calibration device for the reading system of a pressure gauge intelligent calibration device, such as... Figure 1 As shown, it includes a dial 2, a pointer 3, a drive mechanism, and an angle detector; the dial 2 is provided with multiple scale lines; one end of the pointer 3 is rotatably mounted on the dial 2 around a first axis; and the other end of the pointer 3 is used to indicate the scale lines; the drive mechanism is used to drive the pointer 3 to rotate around the first axis; and the angle detector is used to detect the rotation angle of the pointer 3.
[0025] By maintaining the same setting method for dial 2 and each scale line as traditional pressure gauges, and ensuring that the measurement range and spacing of the scale lines meet the specifications and the values are accurate, the device is placed on the test position of the intelligent pressure gauge calibration device reading system during use. The drive mechanism moves pointer 3 to a specific pressure value position on dial 2, and the angle detector obtains the rotation angle of pointer 3 to ensure the accuracy and reliability of the displayed values corresponding to each scale line on dial 2. Then, the measured values obtained by the intelligent pressure gauge calibration device reading system are compared to calibrate the system, thereby ensuring the measurement accuracy of the intelligent pressure gauge calibration device reading system.
[0026] The following are the settings instructions for dial 2:
[0027] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, it also includes a watch case 1, and a watch dial 2 is fixedly mounted on the watch case 1.
[0028] Specifically, the dial 2 and all scale lines are set in a manner consistent with traditional pressure gauges, and the measurement range and spacing of the scale lines meet the specifications and the values are accurate. Ensuring the accuracy of the data on dial 2 is the foundation upon which the reading system of the intelligent pressure gauge calibration device is calibrated.
[0029] In the optional embodiments of this example, a preferred option is to provide reading numbers at the positions corresponding to the scale lines. Providing reading numbers facilitates faster acquisition of pressure data during calibration.
[0030] The following are the settings instructions for pointer 3:
[0031] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, pointer 3 is used to indicate that one end of the scale line is a sharp point.
[0032] The following are the settings instructions for the drive mechanism:
[0033] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the drive mechanism includes a drive motor and a first gear 4; the drive motor is fixedly mounted on the dial 2, and the first gear 4 and the pointer 3 are located on the same side of the dial 2; the first gear 4 is fixedly mounted on the output shaft of the drive motor; a transmission gear is fixedly mounted on the shaft of the pointer 3; the first gear 4 meshes with the transmission gear for transmission.
[0034] In the optional schemes of this embodiment, the drive motor is preferably a servo motor 5.
[0035] The following are the settings instructions for the angle detector:
[0036] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the angle detector includes an encoder 7 and a second gear 6; the encoder 7 is fixedly mounted on the dial 2, and the second gear 6 is fixedly mounted on the output shaft of the encoder 7; the second gear 6 meshes with the transmission gear for transmission.
[0037] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the first gear 4 and the second gear 6 are positioned opposite each other on opposite sides of the pointer 3.
[0038] In the optional schemes of this embodiment, it is more preferred that the first gear 4 and the second gear 6 have the same structure.
[0039] Specifically, the servo motor 5 drives the pointer 3 to rotate, and the rotation of the pointer 3 then drives the second gear 6 to rotate synchronously through the transmission gear, and the encoder 7 outputs the angle data of the pointer 3's rotation.
[0040] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A calibration device for a reading system of a pressure gauge intelligent calibration device, characterized in that: Includes dial, hands, drive mechanism, and angle detector; The dial has multiple scale lines; One end of the pointer is rotatably mounted on the dial around a first axis; and the other end of the pointer is used to indicate the scale lines. The driving mechanism is used to drive the pointer to rotate around the first axis; The angle detector is used to detect the rotation angle of the pointer.
2. The calibration device for the reading system of an intelligent pressure gauge calibration device according to claim 1, characterized in that: The driving mechanism includes a drive motor and a first gear; the drive motor is fixedly mounted on the dial, and the first gear and the pointer are located on the same side of the dial; the first gear is fixedly mounted on the output shaft of the drive motor; a transmission gear is fixedly mounted on the shaft of the pointer; the first gear meshes with the transmission gear for transmission.
3. The calibration device for the reading system of an intelligent pressure gauge calibration device according to claim 2, characterized in that: The angle detector includes an encoder and a second gear; The encoder is fixedly mounted on the dial, and the second gear is fixedly mounted on the output shaft of the encoder; the second gear meshes with the transmission gear for transmission.
4. The calibration device for the reading system of an intelligent pressure gauge calibration device according to claim 2, characterized in that: The drive motor is a servo motor.
5. The calibration device for the reading system of an intelligent pressure gauge calibration device according to claim 3, characterized in that: The first gear and the second gear are positioned opposite each other on opposite sides of the pointer.
6. The calibration device for the reading system of an intelligent pressure gauge calibration device according to claim 5, characterized in that: The first gear has the same structure as the second gear.
7. The calibration device for the reading system of an intelligent pressure gauge calibration device according to claim 1, characterized in that: It also includes a watch case, on which the watch dial is fixedly mounted.
8. The calibration device for the reading system of an intelligent pressure gauge calibration device according to claim 1, characterized in that: The pointer is used to indicate that one end of the scale line is a sharp point.
9. The calibration device for the reading system of an intelligent pressure gauge calibration device according to claim 1, characterized in that: The scale lines are marked with corresponding reading numbers.