Simple small motor speed measuring device

Abstract

The utility model discloses a simple and small motor speed measuring device, including mechanical structure and electrical control system, and mechanical structure is used for installation fixed and drive, and electrical control system is used for rotational speed measurement, adjustment and control, mechanical structure includes encoder, shaft coupling, electrical mechanism, and the encoder axle is connected with motor through shaft coupling, electrical control system contains controller, AC governor, DC governor, power, and the controller gathers the rotational speed signal of encoder, and the motor rotational speed is adjusted to AC governor or DC governor with analog signal control, the utility model discloses through to the optimization innovation of overall design and structure inside, adopts advanced design thought to simplify control mode, reduces artificial intervention, reduces the labor intensity, and the economic effect is adjusted high.

Description

Technical Field

[0001] This utility model belongs to the field of motor testing, specifically relating to a simple small motor speed measuring device for measuring the speed of a small motor. Background Technology

[0002] In the production and daily life of small motors, there is a high demand for speed measurement. Traditional testing devices are complex to set up and have high installation requirements, so there is an urgent need for a simple and efficient small motor speed measuring device. Utility Model Content

[0003] This utility model provides a simple small motor speed measuring device, which can realize the rapid installation of the testing device, is easy to set up, and has low installation requirements.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A simple small motor speed measuring device includes a mechanical structure and an electrical control system. The mechanical structure is responsible for installation, fixation, and transmission, while the electrical control system is responsible for speed measurement, adjustment, and control. The mechanical structure consists of an encoder, a coupling, and a motor. The encoder shaft is coaxially connected to the motor via the coupling. The electrical control system includes a controller, an AC speed controller, a DC speed controller, and a power supply. The controller collects the encoder speed signal and uses an analog signal to control the AC or DC speed controller, thereby adjusting the motor speed.

[0005] Further optimization reveals that the mechanical structure also includes a base plate, a motor L-shaped bracket, an encoder L-shaped bracket, and screws. The motor L-shaped bracket is fixed to the base plate with screws, the encoder is fixed to the encoder L-shaped bracket with screws, the encoder L-shaped bracket is also fixed to the base plate with screws, and the motor is fixed to the motor L-shaped bracket with screws.

[0006] Furthermore, a high-precision encoder is selected and works in conjunction with the controller, which serves as a high-speed acquisition controller, to achieve accurate measurement at high speeds. Further optimization involves the controller acquiring pulses emitted by the encoder, converting them into speed using an algorithm, and simultaneously calculating the motor load corresponding to the current motor speed using the ratio input from the speed controller, thereby achieving multi-parameter testing.

[0007] This utility model has the following beneficial effects: This utility model discloses a simple small motor speed measuring device that is easy to build and low in cost: the mechanical structure is built with a simple L-shaped bracket, eliminating the need to make complex test fixtures, saving time and cost, and reducing installation difficulty. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of a simple small motor speed measuring device according to the present invention; Figure 2 This is an electrical schematic diagram of a simple small motor speed measuring device according to the present invention.

[0009] Attached labels: 1 Base plate, 2 Encoder, 3 Encoder L bracket, 4 Coupling, 5 Motor L bracket, 6 Motor, 7 Screw, 8 DC speed controller, 9 AC speed controller, 10 Controller. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and relevant knowledge. Obviously, the described applications are only some embodiments of the present invention, and not all embodiments.

[0011] The present invention will be further described in detail below with reference to the accompanying drawings.

[0012] Reference Figure 1 As shown, a simple small motor speed measuring device includes: an encoder 2 fixed to an encoder L-shaped bracket 3 by screws 7; the encoder L-shaped bracket 3 fixed to a base plate 1 by screws; the encoder 2 connected to a motor 6 via a coupling 4; the motor 6 fixed to a motor L-shaped bracket 5 by screws; and the motor L-shaped bracket 5 fixed to the base plate 1 by screws. When the motor 6 rotates, it drives the encoder 2 to rotate. The encoder 2 collects speed signals through a controller 10, and simultaneously, the controller 10 controls the motor speed using an AC speed controller 9 or a DC speed controller 8 with analog signals, thus achieving the purpose of testing the motor speed. The simple bracket installation eliminates the time required to manufacture test fixtures. Furthermore, the combination of the controller and a high-precision encoder reduces measurement errors. The controller controls the speed controller, eliminating the need for manual speed adjustment on-site. The collected data can be uploaded via network cable through a host computer / HMI, and control commands can also be issued, ensuring operator safety.

[0013] Reference Figure 2 As shown, the controller involved in this utility model is a Siemens PLC SR20, the AC speed controller is a US52-20, the DC speed controller is a DC10-60, and the encoder is a K6012G-1024.

[0014] This utility model discloses a simple small motor speed measuring device, which is convenient to set up and low in cost: the mechanical structure is built with a simple L-shaped bracket, eliminating the need for complex test fixtures, saving time and costs, reducing installation difficulty, and allowing for rapid deployment in testing. It offers comprehensive speed control functions: two separate AC and DC speed control systems cover small AC and DC motor testing scenarios, making it widely applicable. Measurement is accurate and safe: a high-precision encoder combined with a high-speed acquisition controller ensures high-speed measurement accuracy; a rapid fault stop design protects personnel and equipment safety. It is intelligent and efficient: the controller algorithm converts speed and calculates load, and remote data interaction and control via a host computer / HMI eliminates the need for manual on-site operation, improving testing efficiency and safety, reducing labor intensity, and simplifying control through optimized design, minimizing intervention, and improving economic benefits.

[0015] Example 1: A simple small motor speed measuring device, specifically including the following mechanical structure assembly: An encoder L-shaped bracket 3 is fixed to a base plate 1 with screws, and an encoder 2 is fixed to the bracket with screws; similarly, a motor L-shaped bracket 5 is fixed to the base plate 1, and a motor 6 is fixed thereon; the encoder 2 and motor 6 shafts are connected via a coupling 4 to complete the mechanical installation. This process utilizes simple brackets and conventional fasteners to quickly complete assembly, eliminating the need for complex tooling fabrication, reducing time and economic costs, and its low installation requirements facilitate rapid deployment and testing.

[0016] Electrical Connection and Debugging: Connect the controller 10, AC speed controller 9, DC speed controller 8, power supply, and encoder 2 lines; when motor 6 rotates, encoder 2 generates pulses, controller 10 collects the pulses and calculates the speed using an algorithm, simultaneously sending an analog signal to the speed controller to adjust the motor speed; data is uploaded and commands are issued via a host computer / HMI, eliminating the need for manual on-site speed adjustment and ensuring safety. The high-precision encoder ensures accurate speed measurement, and the control system quickly stops in case of a fault to avoid danger; the speed controller input ratio, combined with controller calculations, can obtain the motor load, enriching the test data.

[0017] Testing and Optimization: Test various small AC and DC motors to verify the device's functions in speed measurement, speed control, and safety protection; based on test feedback, optimize algorithms and adjust structural installation accuracy to improve device stability and testing accuracy, leveraging its advantages of quick setup, low cost, comprehensive functionality, safety, and high efficiency to meet the testing needs of small motors.

[0018] Although some embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, and all such changes and alterations should fall within the scope of the present invention.

Claims

1. A simple small motor speed measuring device, characterized in that, The system includes a base plate, a motor L-shaped bracket, an encoder L-shaped bracket, screws, an encoder, a coupling, a motor, a controller, an AC speed controller, and a DC speed controller. The motor L-shaped bracket and encoder L-shaped bracket are both fixed to the base plate with screws. The encoder is fixed to the encoder L-shaped bracket with screws, and the motor is fixed to the motor L-shaped bracket. The encoder shaft is coaxially connected to the motor via a coupling. The encoder is a high-precision encoder, and the controller is a high-speed acquisition controller. The controller acquires the encoder speed pulse signal, simultaneously reads the speed controller input ratio, and calculates the motor load corresponding to the current motor speed, achieving synchronous testing of multiple parameters including speed and load. The controller outputs an analog signal to selectively control an AC speed controller or a DC speed controller, adapting to speed regulation of small AC motors and small DC motors respectively.

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