Handheld testing device

Abstract

The utility model relates to the technical field of motor speed measurement, and provides a hand-held testing device which comprises a machine body, a mainboard is fixedly connected in the machine body through screws, a single-chip microcomputer is fixedly connected to the outer wall of the top of the mainboard, and a magnetic encoder chip is fixedly connected to one side of the outer wall of the top of the mainboard. And the magnetic encoder chip is fixedly connected with a magnetic encoder through a signal line. According to the utility model, the electronic mode of the single-chip microcomputer is used to replace a mechanical structure, and the incremental mode of the high-precision magnetic encoder is used to carry out high-low speed measurement on the rotation of the output shaft of the motor, so that the motor has the characteristics of high precision and good reliability; meanwhile, the USB interface and the charging chip are additionally arranged on the mainboard to charge the battery, so that the whole system is standby in a low-power-consumption state, the cruising ability of the battery can be improved, in a word, the portable battery is used for charging the system, incremental pulse signals obtained by the magnetic coding IC can be obtained to obtain the rotating speed, and operation is very convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor speed measurement technical field especially relates to a hand -held testing device. BACKGROUND

[0002] Motor speed measurement is the process of measuring the speed of the motor rotor and converting it into an electrical signal output, usually achieved by using various sensors and devices. The purpose of motor speed measurement is to determine the operating state of the motor, ensuring that it operates within the desired speed range. Motor speed measurement is widely used in various industries and devices, including: industrial automation: in the fields of robotics, mechanical manufacturing, fluid control, etc., speed measurement motors are used to accurately control speed and position. Energy field: in wind power generation and cutting equipment, speed measurement motors ensure the stable operation of the equipment and efficient energy conversion. Medical equipment: in medical equipment, speed measurement motors are used to accurately control mechanical movement, ensuring the accuracy of surgical or treatment processes. Through accurate speed measurement technology, real-time monitoring and control of motor speed can be achieved, improving the stability and efficiency of the equipment.

[0003] In the process of motor speed measurement, the contact type speed measurement method is usually used, which involves direct contact between the measuring device and the motor shaft, such as using a gear or a mechanical speed measurement generator. Although the contact type speed measurement has the characteristics of simple structure, it may introduce friction and wear during testing, affecting the measurement accuracy. SUMMARY

[0004] To solve the above problems, the utility model provides a hand -held testing device to more exactly solve the problem that the above -mentioned equipment is easy to wear equipment and the test precision is low.

[0005] The utility model discloses the following technical scheme realizes:

[0006] The utility model provides a hand -held testing device, including the body, the body is internally fixedly connected with the mainboard through screw, and the mainboard top outer wall is fixedly connected with singlechip, one side of mainboard top outer wall is fixedly connected with magnetic encoder chip, and magnetic encoder chip is fixedly connected with magnetic encoder through signal line, the one side fixedly connected with the direction lamp chip of mainboard top outer wall at magnetic encoder chip, and the direction lamp chip is fixedly connected with LED lamp through signal line.

[0007] One side of mainboard top outer wall is fixedly connected with USB interface, and the USB interface one side outer wall is installed with the charging chip, and the one side of the body one side outer wall is located USB interface and is provided with the charging pilot lamp.

[0008] By the above scheme, the electronic way of using single-chip microcomputer replaces the mechanical structure, adopts the test mode of handheld test, has compact structure, convenient operation, is convenient to carry, and uses the incremental mode of high-precision magnetic encoder to measure the high and low speed of the rotation of the motor output shaft, relies on the direction of the LED lamp to the magnet to point, can assist positioning, improves the accuracy of the magnetic encoder speed measurement, the device is a non-contact speed measurement method, without contacting the speed measurement equipment to the motor, has the characteristics of high precision and good reliability;

[0009] At the same time, the USB interface and the charging chip are added on the mainboard to charge the battery, and whether the charging is normal or whether the charging is completed is judged by the charging indicator light, when the device is not tested, the single-chip microcomputer enters the sleep state, so that the whole system can be in standby state under low power consumption, and the endurance of the battery can be improved. In short, the device uses a portable battery to charge the system, and can also obtain the incremental pulse signal obtained by the magnetic encoding IC to obtain the speed, which is very convenient to operate.

[0010] Further, the motor is arranged on one end of the outer wall of the body, and the output shaft of the motor is fixedly connected with a rotating disc, and the outer wall of one side of the rotating disc is fixedly connected with a magnet.

[0011] Through the above scheme, the magnet on the rotating disc can be rotated during the rotation of the output shaft of the motor.

[0012] Further, the battery box with a battery is installed at the other end of the body, and the power switch is arranged on the other side of the outer wall of the body.

[0013] Through the above scheme, the battery is installed in the battery box, and the battery can be powered after the USB interface is plugged into the power supply. The power switch is mainly responsible for controlling the opening and closing of the whole body system.

[0014] Further, the display screen chip is fixedly connected to the top outer wall of the mainboard, and the display screen chip is fixedly connected to the speed display screen through a signal line, and the speed display screen is embedded in the top outer wall of the body.

[0015] Through the above scheme, the display screen chip is mainly responsible for receiving the speed signal transmitted by the magnetic encoder chip, and transmitting the speed data to the speed display screen for display.

[0016] Further, the control switch is fixedly connected to the top outer wall of the mainboard, and the button is arranged on the top outer wall of the body.

[0017] Further, the microphone is installed on the top outer wall of the battery box.

[0018] Through the above scheme, when the rotating speed of the motor exceeds the threshold value, the control system of the main plate can control the microphone to give a warning sound.

[0019] Further, the outer wall of one end of the body is provided with a protective sleeve, and the magnetic encoder and the LED lamp are installed on the inner wall of one end of the protective sleeve.

[0020] Further, the outer wall of one end of the body is provided with a protective sleeve, and the magnetic encoder and the LED lamp are installed on the inner wall of one end of the protective sleeve.

[0021] The utility model discloses the beneficial effect:

[0022] The utility model discloses a hand -held test device, use the electronic mode of singlechip to replace mechanical structure, adopt the test mode of hand -held test, compact structure, convenient operation is convenient for carrying, and use the incremental mode of high -precision magnetic encoder to the rotation of motor output shaft is high and low speed measurement, rely on the direction of LED lamp to the magnet and point to, can carry out auxiliary positioning, improve the precision of magnetic encoder speed measurement, and the device is a non - contact type speed measurement mode, need not touch the speed measurement equipment to the motor, with high precision, good reliability characteristics,

[0023] At the same time, the USB interface and the charging chip are added on the main plate to charge the battery, and whether normal charging or whether charging is completed is judged by relying on the charging indicator light, when the equipment does not test, the singlechip will enter the sleep state, makes the whole system standby in the low power consumption state, can improve the endurance of battery, in short, the device utilizes portable battery to charge the system, can also obtain the incremental pulse signal of magnetic encoding IC and obtains the rotation speed, and operation is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is whole structure schematic diagram of the utility model;

[0025] Figure 2 It is body connecting structure schematic diagram of the utility model;

[0026] Figure 3 It is main plate connecting structure schematic diagram of the utility model;

[0027] Figure 4 It is motor connecting structure schematic diagram of the utility model.

[0028] The reference signs are as follows:

[0029] In the figure: 1, the body; 2, mainboard; 3, single-chip microcomputer; 4, magnetic encoder chip; 5, magnetic encoder; 6, direction indicator chip; 7, LED lamp; 8, USB interface; 9, charging chip; 10, charging indicator light; 11, motor; 12, rotating disc; 13, magnet; 14, battery box; 15, power switch; 16, display screen chip; 17, rotating speed display screen; 18, control switch; 19, button; 20, microphone; 21, protective sleeve; 22, handle. DETAILED DESCRIPTION

[0030] In order to more clearly and completely illustrate the technical scheme of the utility model, the utility model will be further described below in combination with the drawings.

[0031] Please refer to Figures 1-4 The utility model provides a hand -held test device, including body 1, the body 1 inside is fixedly connected with mainboard 2 through screw, and the top outer wall of mainboard 2 is fixedly connected with single-chip microcomputer 3, one side of the top outer wall of mainboard 2 is fixedly connected with magnetic encoder chip 4, and magnetic encoder chip 4 is fixedly connected with magnetic encoder 5 through signal line, the top outer wall of mainboard 2 is fixedly connected with direction indicator chip 6 on one side of magnetic encoder chip 4, and direction indicator chip 6 is fixedly connected with LED lamp 7 through signal line;

[0032] One side of the top outer wall of mainboard 2 is fixedly connected with USB interface 8, and charging chip 9 is installed on one side outer wall of USB interface 8, and the one side outer wall of body 1 is provided with charging indicator light 10 on one side of USB interface 8.

[0033] In the embodiment, the electronic mode of using single-chip microcomputer 3 replaces mechanical structure, adopts the test mode of hand -held test, and the compact structure is convenient to operate, portable, and the incremental mode of using high-precision magnetic encoder 5 is used to measure the high and low speed of the rotation of motor 11 output shaft, the direction of LED lamp 7 to magnet 13 is pointed, and auxiliary positioning can be carried out, the accuracy of magnetic encoder 5 speed measurement is improved, the device is a non -contact type speed measurement mode, and the speed measurement equipment does not need to contact motor 11, and has the characteristics of high precision and good reliability;

[0034] At the same time, USB interface 8 and charging chip 9 are added on mainboard 2 to charge the battery, and whether normal charging or whether charging is completed is judged by relying on charging indicator light 10, when the equipment is not tested, single-chip microcomputer 3 will enter sleep state, so that the whole system is in standby in low power consumption state, the endurance of the battery can be improved, in short, the device charges the system by using portable battery, and can also obtain the incremental pulse signal obtained by magnetic encoding IC to obtain rotating speed, and the operation is very convenient.

[0035] The outer wall of one end of the body 1 is provided with a motor 11, and the output shaft of the motor 11 is fixedly connected with a rotating disc 12, and the outer wall of one side of the rotating disc 12 is fixedly connected with a magnet 13. The output shaft of the motor 11 can control the rotation of the magnet 13 on the rotating disc 12 during rotation.

[0036] The other end of the inside of the body 1 is provided with a battery box 14 with a battery, and the other side of the outer wall of the body 1 is provided with a power switch 15. The battery box 14 is internally provided with a battery, and the USB interface 8 can supply power to the battery after being inserted into the power supply. The power switch 15 is mainly responsible for controlling the opening and closing of the entire body 1 system.

[0037] The top outer wall of the mainboard 2 is fixedly connected with a display screen chip 16, and the display screen chip 16 is fixedly connected with a rotating speed display screen 17 through a signal line, and the rotating speed display screen 17 is embedded on the top outer wall of the body 1. The display screen chip 16 is mainly responsible for receiving the rotating speed signal transmitted by the magnetic encoder chip 4, and transmitting the rotating speed data to the rotating speed display screen 17 for display.

[0038] The top outer wall of the mainboard 2 is fixedly connected with an array of control switches 18, and the top outer wall of the body 1 is provided with an array of buttons 19.

[0039] The top outer wall of the battery box 14 is provided with a microphone 20. When the rotating speed of the motor exceeds the threshold value, the control system of the mainboard 2 can control the microphone 20 to issue a warning sound.

[0040] The outer wall of one end of the body 1 is provided with a protective sleeve 21, and the magnetic encoder 5 and the LED lamp 7 are installed on the inner wall of one end of the protective sleeve 21.

[0041] The outer wall of one side of the battery box 14 is fixedly connected with a handle 22, and the outer wall of the handle 22 is bonded with a non-slip leather sheath

[0042] When using the hand-held test device, the electronic method of using the single-chip microcomputer 3 replaces the mechanical structure, adopts the test method of hand-held test, and uses the incremental method of high-precision magnetic encoder 5 to measure the high and low speed of the rotating output shaft of the motor 11. The incremental pulse signal obtained by the magnetic encoding IC can be used to obtain the rotating speed, and the LED lamp 7 points to the direction of the magnet 13. This device is a non-contact speed measurement method, which does not need to contact the speed measurement equipment to the motor 11. When testing, the output shaft of the motor 11 rotates to drive the magnet 13 on the rotating disc 12 to rotate, and the magnetic encoder 5 on the body 1 can sense the magnet 13. The rotating speed is measured by detecting the pulse signal, and the rotating speed data is displayed on the rotating speed display screen 17.

[0043] At the same time, the USB interface 8 and the charging chip 9 are added on the mainboard 2 to charge the battery, and whether normal charging or charging completion is judged by the charging indicator light 10; when the device is not tested, the single-chip microcomputer 3 enters the sleep state, so that the whole system is in the low-power standby state, the system is charged by the portable battery, and the endurance of the battery can be improved.

[0044] Of course, the utility model also can have other multiple implementation manners, and other implementation manners obtained by the ordinary skilled person in the art based on the present embodiment without any creative labor all belong to the range protected by the utility model.

Claims

1. A hand-held test device, characterized in that The machine body is internally connected with a mainboard by screw fixing, and the top outer wall of the mainboard is fixedly connected with a single-chip microcomputer, one side of the top outer wall of the mainboard is fixedly connected with a magnetic encoder chip, and the magnetic encoder chip is fixedly connected with a magnetic encoder through a signal line, one side of the top outer wall of the mainboard located at the magnetic encoder chip is fixedly connected with a pilot lamp chip, and the pilot lamp chip is fixedly connected with an LED lamp through a signal line; One side of the top outer wall of the mainboard is fixedly connected with a USB interface, and a charging chip is mounted on one side outer wall of the USB interface, and a charging indicator lamp is arranged on one side of the outer wall of the machine body.

2. The handheld test device of claim 1, wherein, The outer wall of one end of the machine body is provided with a motor, and the output shaft of the motor is fixedly connected with a rotating disc, and the outer wall of one side of the rotating disc is fixedly connected with a magnet.

3. The handheld test device of claim 1, wherein, The other end of the machine body is internally provided with a battery box with a battery, and the other side of the outer wall of the machine body is provided with a power switch.

4. The handheld test device of claim 1, wherein, The top outer wall of the mainboard is fixedly connected with a display screen chip, and the display screen chip is fixedly connected with a rotating speed display screen through a signal line, and the rotating speed display screen is embedded on the top outer wall of the machine body.

5. The handheld test device of claim 1, wherein, The top outer wall of the machine body is fixedly connected with an array of control switches, and the top outer wall of the machine body is provided with an array of buttons.

6. The handheld test device of claim 3, wherein, The top outer wall of the battery box is provided with a microphone.

7. The handheld test device of claim 1, wherein, The outer wall of one end of the machine body is provided with a protective sleeve, and the magnetic encoder and the LED lamp are mounted on the inner wall of one end of the protective sleeve.

8. The handheld test device of claim 3, wherein, The outer wall of the handle is fixedly connected with a handle, and the outer wall of the handle is bonded with a non-slip leather sheath.

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