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A virtual instrument-based balance coefficient tester and its test method

A technology of balance coefficient and virtual instrument, applied in the directions of transportation, packaging, elevators, etc., can solve the problems of large error and low precision, and achieve the effect of improving accuracy and avoiding errors.

Active Publication Date: 2021-11-05
SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of large errors and low precision in the existing balance coefficient testing technology, the present invention provides a balance coefficient tester and its testing method based on virtual instruments

Method used

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  • A virtual instrument-based balance coefficient tester and its test method
  • A virtual instrument-based balance coefficient tester and its test method
  • A virtual instrument-based balance coefficient tester and its test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] see figure 1 , figure 2 as well as image 3 , this embodiment provides a virtual instrument-based balance coefficient tester, which is used to test the balance coefficient of a traction-driven elevator. The tester of this embodiment uses the photoelectric signal to trigger and record the current value instead of visually recording a certain phase current output by the elevator inverter when the elevator car and the counterweight are on the same horizontal line, which avoids the human error caused by visual inspection, and improves the test performance. purpose of precision. Wherein, the tester includes a color sensor, a clamp current sensor, a controller, a computer (which is provided with a virtual instrument) and a printer.

[0047] The color sensor is installed on the base of the traction machine of the elevator, and is used to align the white mark marked on the elevator traction wire rope when the elevator car and the counterweight are at the same level. The whi...

Embodiment 2

[0061] This embodiment provides a virtual instrument-based balance coefficient tester, which adds a test vehicle on the basis of Embodiment 1. Among them, the test vehicle includes a car body, a platform, a power mechanism, multiple wheels and load cells. The car body has a storage space for a plurality of weights, the storage space can generally be set large enough, and can be an open space. A platform is provided at the bottom of the containment space and is used to support all weights. The platform can move relative to the vehicle body without contact between the two. A plurality of wheels are rotatably installed on the bottom of the car body, and drive the car body to run through the rotation. The wheels can adopt wear-resistant and pressure-resistant wheels, which can bear enough pressure. The power mechanism is installed in the vehicle body and is used to drive at least one pair of coaxially arranged wheels to rotate. The power mechanism generally adopts a servo moto...

Embodiment 3

[0065] see Figure 4 , this embodiment provides a virtual instrument-based balance coefficient tester, which adds an automatic counterweight system on the basis of Embodiment 2. The automatic counterweight system belongs to the partial structure of the test vehicle, and includes at least two splints 2 , a driving assembly 3 , a lifting rod 4 , a rotating motor 5 and a rotating rod 6 .

[0066] Lifting rod 4 is divided into two parts, and a part is fixed section, and another part is lifting section. The fixed section of elevating rod 4 is fixed on the car body 1, and rotating motor 5 is installed on the elevating section of elevating rod 4. In this embodiment, the lifting rod 4 can adopt an existing telescopic member such as a hydraulic rod, which has a relatively large lifting force and can lift at least one weight 7 . The rotating rod 6 is perpendicular to the axial direction of the lifting rod 4 , and the rotating motor 5 is used to drive the rotating rod 6 to rotate in th...

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Abstract

The invention discloses a virtual instrument-based balance coefficient tester and a test method thereof. The tester includes a color sensor, a clamp current sensor, a controller, a computer (with a virtual instrument) and a printer. The clamp current sensor is clamped on any one phase of the three-phase power output by the elevator inverter, and is used to detect the current of the corresponding phase. The color sensor is used to align the white mark marked on the elevator traction wire rope when the elevator car and the counterweight are on the same horizontal line. When a detection signal is generated, the signal triggers the clamp current sensor to detect the instantaneous current of one phase of the three-phase output of the elevator inverter. This phase is the output phase of the elevator inverter clamped by the clamp current sensor. The invention does not need to manually draw balance coefficient curves, reduces errors caused by environmental influences and human influences, and improves the accuracy of test data.

Description

technical field [0001] The invention relates to a balance factor tester in the technical field of elevator inspection, in particular to a balance factor tester based on a virtual instrument, and also to a test method for a balance factor based on a virtual instrument. Background technique [0002] In order to ensure the safe operation of the elevator, the balance coefficient of the traction drive elevator should be between 0.40 and 0.50. The car is respectively loaded with 40% and 50% of the rated load for the whole journey up and down. The existing elevator balance coefficient test method mainly collects data manually and uses the data to draw a balance coefficient curve. However, with the development of elevators and the needs of special equipment inspection work, this inspection method has the following disadvantages: [0003] 1. The test data will vary due to the individual differences of the testers. For the same elevator, there will be differences in test data due t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00
CPCB66B5/0037
Inventor 阮一晖沈俊华陈明涛
Owner SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE
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