Water turbine fluted disc speed measurement probe detection device

Abstract

The utility model relates to the technical field of probe detection, and provides a water turbine fluted disc speed measurement probe detection device, which comprises a shell, a first detection mechanism, a second detection mechanism, a wiring terminal, an indication assembly, a power supply assembly and a signal detection module, and is characterized in that the first detection mechanism, the second detection mechanism, the wiring terminal and the indication assembly are arranged on the shell; the first detection mechanism and the second detection mechanism are both connected with the indication assembly, and the first detection mechanism, the second detection mechanism and the indication assembly are all connected with the power supply assembly; the Hall type test probe is detected through the first detection mechanism, the proximity switch type speed measurement probe is detected through the second detection mechanism, the functional integrity of the speed measurement probe is reflected through the indication assembly, and the problems that in the detection process of an existing fluted disc speed measurement probe and a detection tool of a spare part of the fluted disc speed measurement probe, output signals are irregular, judgment of operators is affected, and the detection efficiency is high are solved. And the operation is complicated, the defect elimination work is not quickly completed, and the power generation benefit is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of probe detection, in particular to a turbine gear disc speed measuring probe detection device. Background Art

[0002] The main methods for measuring turbine speed include residual pressure speed measurement and gear speed measurement. Residual pressure speed measurement calculates turbine speed by measuring the frequency of the generator terminal voltage. Gear speed measurement uses a non-contact speed probe to detect a ring-shaped gear mounted on the generator shaft. As the gear rotates with the shaft and sweeps past the speed probe, it generates a square wave of a certain frequency, which is measured to calculate the turbine speed. The types of gears installed vary from hydropower station to hydropower station, and the types of gear speed probes used for each type of gear vary as well. Generally, Hall effect speed probes are used for measuring ring-shaped magnet gears, while proximity switch speed probes are used for measuring ring-shaped iron gears. The speed of a hydropower generator set is crucial for unit control. Gear speed measurement is generally used as a redundant measurement method alongside residual pressure speed measurement, serving as the primary measurement method when the unit speed is low. Therefore, the gear test probe and its spare parts must be tested.

[0003] Currently, the tools used to inspect geared speed probes and their spare parts produce irregular output signals during the inspection process, affecting the operator's judgment. They also require an external power supply module and oscilloscope, making the operation complex and hindering the rapid elimination of defects, thus affecting power generation efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a turbine gear disc speed probe detection device, which aims to solve the problem that the output signals of the existing gear disc speed probe and its spare detection tools are irregular during the detection process, affecting the operator's judgment, and the operation is complicated, which is not conducive to the rapid completion of defect elimination work and affects the power generation efficiency.

[0005] The present invention is achieved through the following technical solutions:

[0006] A turbine gear disc speed measuring probe detection device includes: a housing, a first detection mechanism, a second detection mechanism, a wiring terminal, an indicator assembly, a power supply assembly, and a signal detection module, wherein the first detection mechanism, the second detection mechanism, the wiring terminal, and the indicator assembly are disposed on the housing, the power supply assembly is disposed within the housing, the first detection mechanism and the second detection mechanism are both connected to the indicator assembly, and the first detection mechanism, the second detection mechanism, and the indicator assembly are both connected to the power supply assembly; the signal detection module is respectively connected to the wiring terminal, the indicator assembly, and the power supply assembly;

[0007] Among them, the first detection mechanism is used to detect the Hall type test probe, and reflects the functional integrity of the Hall type test probe through the indicator component; the second detection mechanism is used to detect the proximity switch type speed measuring probe, and reflects the functional integrity of the proximity switch type speed measuring probe through the indicator component.

[0008] Optionally, the first detection mechanism includes: a first positioning component, a clock oscillation driving module and a first testing component, the first positioning component is arranged on the surface of the housing, and the clock oscillation driving module and the testing component are arranged inside the housing;

[0009] The clock oscillation driving module is connected to the power supply component and the first test component respectively;

[0010] The first positioning component passes through the housing and is arranged opposite to the first testing component.

[0011] Optionally, the testing component is an electromagnet.

[0012] Optionally, the second detection mechanism includes: a second test component, a drive component, a second positioning component and a reciprocating motion component, the drive component is respectively connected to the reciprocating motion component and the power supply component, the second test component is arranged on the reciprocating motion component, the reciprocating motion component passes through the shell, the second positioning component is arranged on the shell, the second positioning component is provided with a card slot adapted to the proximity switch type speed measuring probe, and the motion trajectory of the reciprocating motion component passes through the card slot.

[0013] Optionally, the second test component is an iron sheet.

[0014] Optionally, a driving module is provided in the shell, and the driving module is connected to the driving component and the power supply component respectively; wherein the driving module is used to drive and control the driving component.

[0015] Optionally, a charging interface is provided on the shell, and the charging interface is connected to the power supply assembly.

[0016] Optionally, a switch assembly is provided on the housing, and the switch assembly is connected to the power supply assembly.

[0017] Optionally, a power supply module is provided in the shell, the power supply assembly is connected to the power supply module, and the power supply module is respectively connected to the first detection mechanism, the second detection mechanism, the indication assembly and the signal detection module; wherein the power supply module is used to convert the electric energy of the power supply assembly into electric energy that is compatible with the first detection mechanism, the second detection mechanism, the indication assembly and the signal detection module.

[0018] Optionally, the indicating component is a signal indicator light.

[0019] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0020] Multifunctional detection capability: The device integrates the first detection mechanism and the second detection mechanism, which can respectively detect the functional integrity of the Hall-type test probe and the proximity switch type speed measurement probe, meeting the detection needs of different types of probes and improving the comprehensiveness and flexibility of detection.

[0021] Easy to operate: The device is connected to the probe to be tested through the wiring terminal. The spring terminal design makes wiring convenient and quick. At the same time, it is equipped with obvious function identification, which reduces the difficulty of operation and improves work efficiency.

[0022] Intuitive display: The indicator component can intuitively display the functional status of the probe under test. The user can quickly determine whether the probe is intact without complicated operations, which improves the intuitiveness and readability of the test results.

[0023] Efficient power supply system: The built-in power supply component uses a rechargeable lithium battery, and the power supply module provides stable and adaptive power to ensure the normal operation of each detection mechanism and component. At the same time, a charging port is provided for easy charging using a common external power supply, extending the use time and portability of the device.

[0024] Intelligent detection mechanism: The first detection mechanism simulates the actual working scenario of the probe through the clock oscillation drive module and test components to achieve accurate detection of the Hall-type speed probe; the second detection mechanism simulates the detection environment of the proximity switch-type speed probe through the drive component and reciprocating motion component, improving the accuracy and reliability of detection.

[0025] Reasonable structural design: The internal layout of the shell is reasonable and the components are compactly connected, which not only ensures the accuracy of detection, but also reduces the overall volume and weight of the device, making it easy to carry and use on site.

[0026] High cost-effectiveness: Through integrated design, the types and quantity of testing equipment are reduced, reducing procurement and maintenance costs; at the same time, the efficient testing mechanism also shortens testing time, improves work efficiency, and further enhances economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the external structure of a turbine gear disc speed measuring probe detection device provided by an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of the internal structure of a turbine gear speed measuring probe detection device provided by an embodiment of the utility model;

[0029] Figure 3 A schematic diagram of the structure of the turbine gear disc speed measuring probe detection device provided by the embodiment of the utility model when in use;

[0030] Icons: 1-housing, 2-first positioning component, 3-connecting terminal, 4-indication component, 5-switch component, 6-charging interface, 7-drive component, 8-second positioning component, 9-reciprocating motion component, 10-power supply component, 11-power supply module, 12-drive module, 13-clock oscillation drive module, 14-first test component, 15-signal detection module, 16-Hall type speed probe, 17-proximity switch type speed probe. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Example 1

[0033] A turbine gear speed probe testing device comprises a housing 1, a first detection mechanism, a second detection mechanism, a terminal block 3, an indicator assembly 4, a power supply assembly 10, and a signal detection module 15. The first detection mechanism, the second detection mechanism, the terminal block 3, and the indicator assembly 4 are disposed on the housing 1, while the power supply assembly 10 is disposed within the housing 1. The first and second detection mechanisms are each connected to the indicator assembly 4, and the first, second, and indicator assembly 4 are each connected to the power supply assembly 10. The signal detection module 15 is connected to the terminal block 3, the indicator assembly 4, and the power supply assembly 10, respectively. The first detection mechanism is used to detect a Hall effect probe 16 and indicates the functional integrity of the Hall effect probe 16 via the indicator assembly 4. The second detection mechanism is used to detect a proximity switch speed probe 17 and indicates the functional integrity of the proximity switch speed probe 17 via the indicator assembly 4. The power supply assembly 10 can utilize an 18650 rechargeable lithium battery with a standard input voltage of DC5V. The terminal block 3 has three terminals, each labeled with a function identifier. The terminals are spring-loaded for easy connection during testing. The signal detection module 15 can be composed of a transistor and a peripheral circuit. While providing a DC24V power supply to the Hall-type test probe 16 to be tested or the proximity switch type speed measuring probe 17 to be tested, it receives the feedback signal of the Hall-type test probe 16 to be tested or the proximity switch type speed measuring probe 17 to be tested and amplifies it. The amplified signal is output to the indication component 4, and the status of the Hall-type test probe 16 to be tested or the proximity switch type speed measuring probe 17 to be tested is intuitively displayed through the indication component 4.

[0034] In this embodiment, the housing 1 is provided with a charging port 6, which is connected to the power supply assembly 10. A charging circuit corresponding to the power supply assembly 10 is provided in the housing 1. The charging port 6 can be a USB-Type C interface, and can be charged using a common external power source such as a mobile phone charger.

[0035] In this embodiment, a switch assembly 5 is provided on the housing 1, and the switch assembly 5 is connected to the power supply assembly 10. The switch assembly 5 is a power switch for controlling the power supply.

[0036] In this embodiment, a power supply module 11 is disposed within the housing 1. The power supply assembly 10 is connected to the power supply module 11, which is in turn connected to the first detection mechanism, the second detection mechanism, the indicator assembly 4, and the signal detection module 15. The power supply module 11 is configured to convert the electrical energy of the power supply assembly 10 into electrical energy compatible with the first detection mechanism, the second detection mechanism, the indicator assembly 4, and the signal detection module 15. The power supply module 11 may comprise two DC-DC boost circuits, which boost and stabilize the input voltage (3.7V to 4.2V) of the power supply assembly 10 to provide two outputs of different voltage levels: a first output of 5V DC, which powers the first detection mechanism; and a second output of 24V DC, which powers the second detection mechanism.

[0037] In this embodiment, the indicator component 4 may be a signal indicator light, and the functional integrity of the Hall-type test probe 16 and the proximity switch type speed measuring probe 17 can be determined by the indicator signal of the indicator component 4 .

[0038] When testing the Hall-type speed measuring probe 16, the Hall-type speed measuring probe 16 to be tested is connected to the terminal 3 according to the functional identification, and the Hall-type speed measuring probe 16 to be tested is limited and fixed by the first detection mechanism, the switch component 5 is turned on, and the power supply module 11 supplies power to the first detection mechanism. If the function of the Hall-type speed measuring probe 16 is intact, the Hall-type speed measuring probe 16 will output a signal with the same frequency and duty cycle as the first detection mechanism. The output signal of the Hall-type speed measuring probe 16 is amplified by the signal detection module 15 and drives the indication component 4. The integrity of the Hall-type test probe 16 is judged by the indication component 4.

[0039] When detecting the proximity switch type speed measuring probe 17, the proximity switch type speed measuring probe 17 to be tested is connected to the wiring terminal 3 according to the functional identification, and the proximity switch type speed measuring probe 17 to be tested is limited and fixed by the second detection mechanism, the switch component 5 is turned on, and the power supply module 11 supplies power to the second detection mechanism. If the function of the proximity switch type speed measuring probe 17 is intact, the proximity switch type speed measuring probe 17 will output a signal with the same frequency as the second detection mechanism. The output signal of the proximity switch type speed measuring probe 17 is amplified by the signal detection module 15 and drives the indication component 4. The integrity of the proximity switch type speed measuring probe 17 is judged by the indication component 4.

[0040] Example 2

[0041] Reference Figure 1 、 Figure 2 , based on Example 1, in this embodiment, the first detection mechanism includes: a first positioning component 2, a clock oscillation drive module 13 and a first test component 14, the first positioning component 2 is arranged on the surface of the shell 1, the clock oscillation drive module 13 and the test component 14 are arranged inside the shell 1; the clock oscillation drive module 13 is respectively connected to the power supply component 10 and the first test component 14; the first positioning component 2 passes through the shell 1 and is arranged opposite to the first test component 14. The test component 14 can be an electromagnet, which is composed of a coil and an iron core. The working voltage of the electromagnet is DC5V and the power is 1W. The clock oscillation drive module 13 can be composed of a 555 timer chip and a transistor drive circuit, which can output a square wave signal with a peak-to-peak value of 5V, a frequency of 1Hz and a duty cycle of 50%. As Figure 1 As shown, the first positioning component 2 can be a positioning hole opened on the shell 1, or a component provided with a positioning hole. The positioning hole on the component is connected to the interior of the shell 1, and the electromagnet is aligned with the positioning hole.

[0042] like Figure 3 As shown, when the first detection mechanism of this embodiment is used to detect the Hall-type speed measuring probe 16 to be tested, the detection end of the Hall-type speed measuring probe 16 to be tested is placed in the positioning hole, and the Hall-type speed measuring probe 16 to be tested is connected to the terminal 3 according to the functional identification. The power supply component 5 is turned on, and the power supply module 11 supplies power to the clock oscillation driving module 13 and the signal detection module 15. The clock oscillation driving module 13 generates a square wave signal with a frequency of 1 Hz, a peak-to-peak value of 5 V, and a duty cycle of 50%, and outputs the signal to the testing component 14. The testing component 14 periodically generates a corresponding magnetic field and acts on the Hall-type speed measuring probe 16 to be tested. If the function of the Hall-type speed measuring probe 16 to be tested is intact, it will output a signal with a frequency and duty cycle identical to those of the waveform generated by the clock oscillation driving module 13. The output signal of the Hall-type speed measuring probe 16 to be tested is amplified by the signal detection module 15 and drives the indication component 4, and the functional integrity of the Hall-type speed measuring probe 16 to be tested is judged by the indication component 4.

[0043] Example 3

[0044] Reference Figure 1 、 Figure 2 Based on Examples 1 and 2, in this embodiment, the second detection mechanism includes: a second test assembly, a drive assembly 7, a second positioning assembly 8, and a reciprocating assembly 9. The drive assembly 7 is connected to the reciprocating assembly 9 and the power supply assembly 10, respectively. The second test assembly is disposed on the reciprocating assembly 9, which extends through the housing 1. The second positioning assembly 8 is disposed on the housing 1. The second positioning assembly 8 has a slot adapted for a proximity switch-type speed measuring probe 17, and the motion trajectory of the reciprocating assembly 9 passes through the slot. In this embodiment, the second test assembly may be an iron sheet. When the reciprocating assembly 9 moves toward the outer side of the housing 1 to its extreme position, the second test assembly is located below the slot of the second positioning assembly 8. When the reciprocating assembly 9 moves toward the inner side of the housing 1 to its extreme position, the entire second test assembly is located within the interior of the housing 1. The drive assembly 7 may be a brushed DC reduction motor with a rated voltage of 5V, and has a rotational speed of approximately 40RPM when driven at a rated DC 5V voltage. The drive assembly 7 may also be a servo motor.

[0045] In this embodiment, a drive module 12 is disposed within the housing 1 and is connected to the drive assembly 7 and the power supply assembly 10. The drive module 12 is used to drive and control the drive assembly 7. The drive module 12 is primarily composed of transistors and resistors, and amplifies current to control the movement of the drive assembly 7.

[0046] like Figure 3 As shown, when the second detection mechanism of this embodiment is used to detect the proximity switch type speed measuring probe 17 to be detected, the detection end of the proximity switch type speed measuring probe 17 to be detected is limited and fixed by the slot of the second positioning component 8, the proximity switch type speed measuring probe 17 to be detected is connected to the wiring terminal 3 according to the function identifier, the switch component 5 is turned on, the power supply module 11 supplies power to the driving module 12 and the signal detection module 15, the driving module 12 outputs a constant voltage of DC5V to the driving component 7, and the driving component 7 rotates at a speed of about 40RPM after being powered, driving The reciprocating motion component 9 performs reciprocating motion, and the reciprocating motion component 9 drives the second test component to move and periodically blocks the detection end of the proximity switch type speed measuring probe 17 to be tested; if the probe function of the proximity switch type speed measuring probe 17 to be tested is intact, the proximity switch type speed measuring probe 17 to be tested will output a frequency signal with the same frequency as the reciprocating periodic motion frequency of the reciprocating motion component 9; the output signal of the proximity switch type speed measuring probe 17 to be tested is amplified by the signal detection component 15 to drive the indication component 4, and the functional integrity of the proximity switch type speed measuring probe 17 to be tested is judged by the indication component 4.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A turbine gear speed probe detection device, characterized in that: include: A housing (1), a first detection mechanism, a second detection mechanism, a wiring terminal (3), an indication component (4), a power supply component (10), and a signal detection module (15); the first detection mechanism, the second detection mechanism, the wiring terminal (3), and the indication component (4) are arranged on the housing (1); the power supply component (10) is arranged inside the housing (1); the first detection mechanism and the second detection mechanism are both connected to the indication component (4); the first detection mechanism, the second detection mechanism, and the indication component (4) are both connected to the power supply component (10); and the signal detection module (15) is respectively connected to the wiring terminal (3), the indication component (4), and the power supply component (10); The first detection mechanism is used to detect a Hall-type test probe (16) and reflects the functional integrity of the Hall-type test probe (16) through an indicator component (4); the second detection mechanism is used to detect a proximity switch type speed measuring probe (17) and reflects the functional integrity of the proximity switch type speed measuring probe (17) through an indicator component (4).

2. The turbine gear disc speed measuring probe detection device according to claim 1, characterized in that: The first detection mechanism comprises: a first positioning component (2), a clock oscillation driving module (13) and a first testing component (14), wherein the first positioning component (2) is arranged on the surface of the housing (1), and the clock oscillation driving module (13) and the testing component (14) are arranged inside the housing (1); The clock oscillation driving module (13) is connected to the power supply component (10) and the first test component (14) respectively; The first positioning component (2) passes through the housing (1) and is arranged opposite to the first testing component (14).

3. The turbine gear disc speed measuring probe detection device according to claim 2, characterized in that: The test component (14) is an electromagnet.

4. The turbine gear disc speed measuring probe detection device according to claim 1, characterized in that: The second detection mechanism comprises: a second test component, a drive component (7), a second positioning component (8) and a reciprocating motion component (9), wherein the drive component (7) is connected to the reciprocating motion component (9) and the power supply component (10) respectively, the second test component is arranged on the reciprocating motion component (9), the reciprocating motion component (9) passes through the housing (1), the second positioning component (8) is arranged on the housing (1), the second positioning component (8) is provided with a slot adapted to the proximity switch type speed measuring probe (17), and the motion trajectory of the reciprocating motion component (9) passes through the slot.

5. The turbine gear disc speed measuring probe detection device according to claim 4, characterized in that: The second test component is an iron sheet.

6. The turbine gear disc speed measuring probe detection device according to claim 4, characterized in that: A drive module (12) is provided in the housing (1), and the drive module (12) is connected to the drive assembly (7) and the power supply assembly (10) respectively; wherein the drive module (12) is used to drive and control the drive assembly (7).

7. The turbine gear disc speed measuring probe detection device according to claim 1, characterized in that: A charging interface (6) is provided on the housing (1), and the charging interface (6) is connected to the power supply assembly (10).

8. The turbine gear disc speed measuring probe detection device according to claim 1, characterized in that: A switch assembly (5) is provided on the housing (1), and the switch assembly (5) is connected to the power supply assembly (10).

9. The turbine gear disc speed measuring probe detection device according to any one of claims 1 to 8, characterized in that: A power supply module (11) is provided in the housing (1), the power supply assembly (10) is connected to the power supply module (11), and the power supply module (11) is respectively connected to the first detection mechanism, the second detection mechanism, the indication assembly (4) and the signal detection module (15); wherein the power supply module (11) is used to convert the electric energy of the power supply assembly (10) into electric energy compatible with the first detection mechanism, the second detection mechanism, the indication assembly (4) and the signal detection module (15).

10. The turbine gear disc speed measuring probe detection device according to any one of claims 1 to 8, characterized in that: The indicating component (4) is a signal indicator light.

Images