Detection device for contact type and non-contact type rotating speed sensing equipment

Abstract

The utility model relates to the technical field of rotation speed sensing equipment detection, and provides a detection device for contact type and non-contact type rotation speed sensing equipment, which comprises a fixed base, a rotation speed sensor bracket, a speed measurement motor bracket, a direct-current speed regulation motor and a speed measurement gear, a direct-current speed regulating motor is fixedly arranged on the fixed base, and a speed measuring gear is arranged on an output shaft of the direct-current speed regulating motor; an adjustable chuck is detachably arranged on the speed measuring gear; a rotating speed sensor bracket and a speed measuring motor bracket are arranged on the fixed base in a sliding manner; the rotating speed sensor support is used for installing a rotating speed sensor to be detected. The axial direction of the rotating speed sensor support is perpendicular to the axial direction of the direct current speed regulating motor. The speed measuring motor support is used for installing a speed measuring motor to be detected. The axial direction of the speed measurement motor support and the axial direction of the direct current speed regulation motor are on the same straight line. According to the utility model, the detection of contact and non-contact rotating speed sensors and the output of analog signals can be realized without the operation of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of rotational speed sensor equipment detection, in particular to a detection device for contact and non-contact rotational speed sensor equipment. Background Art

[0002] The speed sensing equipment mainly consists of a non-contact speed sensor and a contact speed measuring motor. The speed sensing equipment is the main component of the ship's main power monitoring system.

[0003] During repairs on a ship's main power monitoring system, the speed sensor equipment needs to be inspected. Currently, this inspection can only be performed while the equipment is operating. The speed simulation signal is generated using a process calibrator and a frequency generator, but this signal still deviates slightly from the actual output waveform of the speed sensor. Consequently, the inspection results may not match the actual operating performance of the speed sensor. Utility Model Content

[0004] The utility model mainly solves the technical problem that the detection of the current speed sensing equipment can only be carried out when the equipment is in operation, which will cause the detection result to be inconsistent with the actual operation effect of the speed sensing equipment. A detection device for contact and non-contact speed sensing equipment is proposed, which can realize the detection of contact and non-contact speed sensors and the output of analog signals without the need for equipment operation.

[0005] The utility model provides a detection device for contact and non-contact speed sensing equipment, comprising: a fixed base, a speed sensor bracket, a speed measuring motor bracket, a DC speed regulating motor and a speed measuring gear;

[0006] A DC speed regulating motor is fixedly arranged on the fixed base, a speed measuring gear is arranged on the output shaft of the DC speed regulating motor; and an adjustable chuck is detachably arranged on the speed measuring gear;

[0007] The rotation speed sensor bracket and the speed measuring motor bracket can be slidably arranged on the fixed base;

[0008] The speed sensor bracket is used to install the speed sensor to be detected; the axial direction of the speed sensor bracket is perpendicular to the axial direction of the DC speed regulating motor;

[0009] The speed measuring motor bracket is used to install the speed measuring motor to be tested; the axial direction of the speed measuring motor bracket is in the same straight line as the axial direction of the DC speed regulating motor.

[0010] Preferably, the fixed base is provided with a rotation speed sensor bracket via a first guide rail and a first slider.

[0011] Preferably, the speed sensor bracket comprises: a first base, a worm, a worm gear box, a sensor fixing plate and a worm gear;

[0012] The first base is mounted on the first slider, and a worm is provided on the first base;

[0013] The worm is matched with a worm wheel, and the worm wheel is placed in a worm wheel box;

[0014] The worm gear box is sleeved on the worm, a sensor fixing plate is fixed on the worm gear box, and a sensor mounting hole is provided on the sensor fixing plate.

[0015] Preferably, the fixed base is provided with a speed measuring motor bracket via a second guide rail and a second slider.

[0016] Preferably, the speed measuring motor bracket comprises: a second base, a screw rod, a screw sleeve, a first clamping plate, a second clamping plate and a locking bolt;

[0017] The second base is mounted on the second slider, a screw rod is provided on the second base, and a threaded sleeve is provided on the screw rod;

[0018] A first clamping plate is fixedly arranged on the silk sleeve;

[0019] A second clamping plate is arranged above the first clamping plate, and the first clamping plate and the second clamping plate are fixed by a locking bolt.

[0020] Preferably, the adjustable chuck comprises: a chuck seat and a plurality of jaws evenly arranged around the circumference of the chuck seat;

[0021] The claws are made of nylon.

[0022] Preferably, the fixed base is made of insulating bakelite.

[0023] Preferably, the rotation speed sensor to be detected and the speed measuring motor to be detected are electrically connected to the oscilloscope.

[0024] The utility model provides a detection device for contact and non-contact speed sensor equipment. When performing non-contact speed sensor detection, the speed sensor to be detected is fixed on the speed sensor bracket, and the speed of the DC speed regulating motor is adjusted to obtain the pulse frequency of the speed sensor under actual working conditions, and its waveform is detected by an oscilloscope to achieve detection of the speed sensor. When performing contact speed measuring motor detection, the speed measuring motor to be detected is fixed on the speed measuring motor bracket, and then the speed measuring motor to be detected is connected to the speed measuring gear shaft through an adjustable chuck, and the speed of the DC speed regulating motor is adjusted to obtain the voltage and frequency under actual working conditions of the speed measuring motor, and its waveform is detected by an oscilloscope to achieve detection of the speed measuring motor. Both the speed sensor bracket and the speed measuring motor bracket can be adjusted up and down, and are installed on a slider, and left and right adjustment is achieved through the slider and the track.

[0025] This new device can detect and output analog signals for both contact and non-contact speed sensors without requiring the device to be in operation. Compared to traditional methods, this method offers greater accuracy and reliability, improving detection efficiency and effectiveness while reducing device costs. While a ship's diesel engine is stopped, this device can simulate its actual operating speed and output it to the monitoring system to test various logic control and security functions. It is suitable for both reversible and irreversible diesel engines. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a detection device for contact and non-contact speed sensing equipment provided by the present invention;

[0027] Figure 2 This is a structural diagram of the rotation speed sensor bracket provided by the utility model;

[0028] Figure 3 This is a structural diagram of the speed measuring motor bracket provided by the utility model;

[0029] Figure 4 This is a structural diagram of the adjustable chuck provided by the utility model;

[0030] Figure 5a This is a schematic diagram of the forward and reverse output voltage signals of the speed measuring motor;

[0031] Figure 5b This is a schematic diagram of the installation form and output signal of the irreversible diesel engine speed sensor;

[0032] Figure 5c This is a schematic diagram of the installation form and output signal of a reversible diesel engine speed sensor.

[0033] Figure numerals: 1. fixed base; 2. first guide rail; 3. first slider; 4. speed sensor bracket; 5. speed motor bracket; 6. DC speed regulating motor; 7. speed measuring gear; 8. adjustable chuck; 9. speed sensor; 10. speed motor; 11. second guide rail; 12. second slider; 401. first base; 402. worm; 403. worm gear box; 404. sensor fixing plate; 405. worm gear; 501. second base; 502. screw; 503. screw sleeve; 504. first clamping plate; 505. second clamping plate; 506. locking bolt; 801. chuck seat; 802. claw. DETAILED DESCRIPTION

[0034] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, rather than all of its contents.

[0035] like Figure 1 As shown, an embodiment of the present invention provides a detection device for contact and non-contact speed sensing equipment, including: a fixed base 1, a speed sensor bracket 4, a speed measuring motor bracket 5, a DC speed regulating motor 6 and a speed measuring gear 7.

[0036] The fixed base 1 is made of insulating bakelite, achieving both insulation and demagnetization. A DC speed-regulating motor 6 is fixed to the fixed base 1, with a speed-measuring gear 7 mounted on its output shaft. A removable adjustable chuck 8 is mounted on the speed-measuring gear 7. The DC speed-regulating motor 6 can be powered by a DC regulated power supply and controlled by a speed controller.

[0037] The fixed base 1 is slidably provided with a speed sensor bracket 4 and a speed measuring motor bracket 5. Specifically, the fixed base 1 is provided with the speed sensor bracket 4 via a first guide rail 2 and a first slider 3, so that the speed sensor bracket 4 can slide on the fixed base 1, facilitating position adjustment of the speed sensor bracket 4. The fixed base 1 is provided with the speed measuring motor bracket 5 via a second guide rail 11 and a second slider 12, so that the speed measuring motor bracket 5 can slide on the fixed base 1, facilitating position adjustment of the speed measuring motor bracket 5.

[0038] The speed sensor bracket 4 is used to install the speed sensor 9 to be detected; the axial direction of the speed sensor bracket 4 is perpendicular to the axial direction of the DC speed regulating motor 6. Figure 2 As shown, the speed sensor bracket 4 comprises a first base 401, a worm 402, a worm gear box 403, a sensor fixing plate 404, and a worm gear 405. The first base 401 is mounted on the first slider 3, with the worm 402 mounted on it. The worm 402 cooperates with the worm gear 405, which is housed in the worm gear box 403. The worm gear box 403 fits over the worm 402, and a sensor fixing plate 404 is fixed to the worm gear box 403. The sensor fixing plate 404 has a sensor mounting hole defined therein. The bolts for the speed sensor 9 are tightened in the sensor mounting holes. Rotating the worm gear 405 causes the worm gear box 403 to move the sensor fixing plate 404 and the speed sensor 9 mounted thereon up and down, enabling height adjustment of the speed sensor 9.

[0039] The speed measuring motor bracket 5 is used to install the speed measuring motor 10 to be tested; the axial direction of the speed measuring motor bracket 5 is in the same straight line as the axial direction of the DC speed regulating motor 6. Figure 3 As shown, the speed measuring motor bracket 5 includes: a second base 501, a screw rod 502, a threaded sleeve 503, a first clamping plate 504, a second clamping plate 505 and a locking bolt 506; the second base 501 is mounted on the second slider 12, a screw rod 502 is provided on the second base 501, and a threaded sleeve 503 is provided on the screw rod 502; the first clamping plate 504 is fixedly provided on the threaded sleeve 503; a second clamping plate 505 is provided above the first clamping plate 504, and the first clamping plate 504 and the second clamping plate 505 are fixed by a locking bolt 506 and a nut. The speed measuring motor 10 is clamped by the first clamping plate 504 and the second clamping plate 505. Rotating the threaded sleeve 503 can move the first clamping plate 504, the second clamping plate 505 and the speed measuring motor 10 up and down, thereby achieving height adjustment of the speed measuring motor 10.

[0040] like Figure 4 As shown, the adjustable chuck 8 comprises a chuck base 801 and multiple claws 802 evenly arranged around the chuck base 801. The multiple claws 802 can clamp the rotating shaft of the tachometer motor 10. The claws 802 are made of nylon to prevent damage to the rotating shaft of the tachometer motor 10. In this utility model, the tachometer motor 10 is connected to the adjustable chuck 8. The claws 802 are designed to be non-metallic and can be adjusted according to the size of the gears of the tachometer motor 10. The adjustable chuck 8 is removable and can be removed for non-contact speed sensor 9 testing and installed for contact tachometer motor 10 testing.

[0041] In the present invention, the rotation speed sensor 9 to be detected and the speed measuring motor 10 to be detected are electrically connected to the oscilloscope.

[0042] The working principle of the detection device of the contact and non-contact speed sensing equipment of the utility model is as follows:

[0043] 1. For non-contact speed sensor detection and signal output: according to the different operating modes of the diesel engine, fix the speed sensor 9 to be detected on the speed sensor bracket 4, adjust the clearance between the speed sensor 9 and the speed measuring gear 7 according to the technical requirements of different types of speed sensors, and adjust the pulse frequency according to the pulse frequency. The unit is Hz, Z represents the number of teeth of the speed measuring gear 7, and n represents the speed of the DC speed regulating motor 6; by adjusting the speed of the DC speed regulating motor 6, the pulse frequency of the speed sensor 9 under actual working conditions is obtained, and its waveform is detected by an oscilloscope to detect the speed sensor 9. At the same time, the actual output signal of the speed sensor 9 can be connected to the monitoring system of the diesel engine or other equipment to achieve the simulated operation state of the equipment, so as to carry out simulation tests of various logic controls and security functions of the diesel engine. In the reversible and irreversible diesel engine installation modes, the output function of the forward and reverse reversing signal can be realized, so that the simulation test of the reversing logic control of the diesel engine can be carried out. Figure 5b As shown, in the irreversible diesel engine installation mode, one pulse frequency is output (without reversing logic function). Figure 5c As shown, in the reversible diesel engine installation mode, two pulse frequencies with a phase difference of 1 / 4 are output. By adjusting the direction of the DC speed regulating motor 6, the forward and reverse directions of the diesel engine can be identified (with reversing logic function).

[0044] 2. For contact-type speed measuring motor detection and signal output: fix the speed measuring motor 10 to be detected on the speed measuring motor bracket 5, and then connect the speed measuring motor 10 to be detected to the speed measuring gear 7 shaft through the adjustable chuck 8, and adjust the speed of the DC speed regulating motor 6 to obtain the voltage and frequency of the speed measuring motor 10 under actual working conditions, and detect its waveform through an oscilloscope to achieve the detection of the speed measuring motor 10. At the same time, the actual output signal of the speed measuring motor 10 can be connected to the monitoring system of the diesel engine or other equipment to achieve the simulated operating state of the equipment, so that simulation tests of various logic controls and security functions of the diesel engine can be carried out. In the reversible and irreversible diesel engine installation mode, the output function of the forward and reverse reversing signal can be realized, so that a simulation test of the reversing logic control of the diesel engine can be carried out. Figure 5a It is shown that both reversible and irreversible diesel engines have the same installation mode. By adjusting the direction of the DC speed regulating motor 6, the forward and reverse voltage signals can be output, and the forward and reverse directions of the diesel engine can be identified (with reversing logic function).

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications to the technical solutions described in the above embodiments, or equivalent replacement of some or all of the technical features therein, do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detection device for contact and non-contact speed sensing equipment, characterized in that: include: A fixed base (1), a speed sensor bracket (4), a speed measuring motor bracket (5), a DC speed regulating motor (6) and a speed measuring gear (7); A DC speed regulating motor (6) is fixedly arranged on the fixed base (1); a speed measuring gear (7) is arranged on the output shaft of the DC speed regulating motor (6); and an adjustable chuck (8) is detachably arranged on the speed measuring gear (7); A rotation speed sensor bracket (4) and a speed measuring motor bracket (5) can be slidably arranged on the fixed base (1); The speed sensor bracket (4) is used to install the speed sensor (9) to be detected; the axial direction of the speed sensor bracket (4) is perpendicular to the axial direction of the DC speed regulating motor (6); The speed measuring motor bracket (5) is used to install the speed measuring motor (10) to be tested; the axial direction of the speed measuring motor bracket (5) and the axial direction of the DC speed regulating motor (6) are on the same straight line.

2. The detection device of contact and non-contact speed sensor equipment according to claim 1, characterized in that: The fixed base (1) is provided with a rotation speed sensor bracket (4) via a first guide rail (2) and a first slide block (3).

3. The detection device of contact and non-contact speed sensor equipment according to claim 2, characterized in that: The rotation speed sensor bracket (4) comprises: a first base (401), a worm (402), a worm gear box (403), a sensor fixing plate (404) and a worm gear (405); The first base (401) is mounted on the first slider (3), and a worm (402) is provided on the first base (401); The worm (402) is matched with a worm wheel (405), and the worm wheel (405) is placed in a worm wheel box (403); The worm gear box (403) is sleeved on the worm (402), a sensor fixing plate (404) is fixedly arranged on the worm gear box (403), and a sensor mounting hole is provided on the sensor fixing plate (404).

4. The detection device of contact and non-contact speed sensor equipment according to claim 1, characterized in that: The fixed base (1) is provided with a speed measuring motor bracket (5) via a second guide rail (11) and a second slide block (12).

5. The detection device of contact and non-contact speed sensor equipment according to claim 4, characterized in that: The speed measuring motor bracket (5) comprises: a second base (501), a screw rod (502), a screw sleeve (503), a first clamping plate (504), a second clamping plate (505) and a locking bolt (506); The second base (501) is mounted on the second slider (12), a screw rod (502) is provided on the second base (501), and a threaded sleeve (503) is provided on the screw rod (502); A first clamping plate (504) is fixedly arranged on the silk sleeve (503); A second clamping plate (505) is provided above the first clamping plate (504), and the first clamping plate (504) and the second clamping plate (505) are fixed by a locking bolt (506).

6. The detection device of contact and non-contact speed sensor equipment according to claim 1, characterized in that: The adjustable chuck (8) comprises: a chuck seat (801) and a plurality of claws (802) uniformly arranged in the circumference of the chuck seat (801); The claw (802) is made of nylon.

7. The detection device of contact and non-contact speed sensor equipment according to claim 1, characterized in that: The fixed base (1) is made of insulating bakelite.

8. The detection device of contact and non-contact speed sensor equipment according to claim 1, characterized in that: The rotation speed sensor (9) to be detected and the speed measuring motor (10) to be detected are electrically connected to the oscilloscope.

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