Abstract

The present invention appropriately monitors the state of a dynamic balance tester. A dynamic balance testing system (100) comprises a dynamic balance tester (1) and an information processing device (3). The dynamic balance tester (1) has a rotation mechanism (11) that rotates an object (W) and a reference position detection sensor (139) that detects a marker (M) provided on the object (W), and measures imbalance of the object (W). The information processing device (3) has an information processing unit (31) and a display unit (35), and executes information processing relating to the dynamic balance tester (1). The information processing unit (31) acquires, from the reference position detection sensor (139), a signal indicating detection or non-detection of the marker (M) when the object W is being rotated by the rotation mechanism (11), and generates marker detection waveform data (D1) indicating a temporal change in the signal. The display unit (35) displays the marker detection waveform data (D1).

IPC Classes  ?

• G01M 1/16 - Determining imbalance by oscillating or rotating the body to be tested

Abstract

According to the present invention: an amount of imbalance of a workpiece is measured; a correction instruction amount for the workpiece is calculated on the basis of the measured amount of imbalance; imbalance correction is applied to the workpiece on the basis of the calculated correction instruction amount; and the correction instruction amount or a correction operation amount based on the correction instruction amount is adjusted such that a residual amount of imbalance remaining in the workpiece after the correction moves in a decreasing direction.

IPC Classes  ?

• G01M 1/38 - Combined machines or devices for both determining and correcting imbalance

Abstract

The present invention appropriately determines the degree of consumption of components in a dynamic balance testing machine without relying on the experience or intuition of a user. A dynamic balance test system (100) is provided with a dynamic balance testing machine (1) and an information processing device (3). The dynamic balance testing machine (1) measures the imbalance of an object. The information processing device (3) performs information processing related to the dynamic balance testing machine (1). A storage device (373) stores a plurality of measurement conditions (MC), and stores a first caution threshold (TH11) and a first limit threshold (TH12) for each of the measurement conditions (MC). An information processing unit (37) measures a determination parameter for determining the degree of consumption of a component, compares the determination parameter with the first caution threshold (TH11) and the first limit threshold (TH12) for each of the measurement conditions (MC), determines, for each of the measurement conditions (MC), the degree of consumption on the basis of the comparison of the determination parameter with the first caution threshold (TH11) and the first limit threshold (TH12) for each of the measurement conditions (MC), and notifies the determination result of the degree of consumption for each of the measurement conditions (MC).

IPC Classes  ?

• G01M 1/22 - Determining imbalance by oscillating or rotating the body to be tested and converting vibrations due to imbalance into electric variables
• G01M 1/34 - Compensating imbalance by removing material from the body to be tested, e.g. from the tread of tyres
• G01M 1/38 - Combined machines or devices for both determining and correcting imbalance
• G01M 13/04 - Bearings
• G01M 13/023 - Power-transmitting endless elements, e.g. belts or chains
• G01M 99/00 - Subject matter not provided for in other groups of this subclass

Abstract

The objective of the present invention is to detect a change of state of a dynamic balance testing machine without relying on the experience or intuition of a user. A dynamic balance testing machine (100) comprises a rotation mechanism (1), imbalance sensors (37a, 37b), a reference position detection sensor (39), a storage device (573), and a calculation unit (57). The rotation mechanism (1) rotates an object (W). The imbalance sensors (37a, 37b) and the reference position detection sensor (39) measure imbalance of the object (W) when the object (W) is rotated. The storage device (573) stores a first measurement result (D1), which is a measurement result of the imbalance, for a specific object. The calculation unit (57) determines that the state of the dynamic balance testing machine (100) has changed if there is a difference having a predetermined magnitude or greater between the first measurement result (D1) and a second measurement result (D2), which is a measurement result of the imbalance measured for the specific object (W) after the first measurement result (D1) has been acquired.

IPC Classes  ?

• G01M 1/16 - Determining imbalance by oscillating or rotating the body to be tested

Abstract

This imbalance measurement device 10 comprises: a measurement mechanism 11 that measures the amount of imbalance in a workpiece W that has undergone a prescribed manufacturing step; and an abnormality detection unit 12 that, in cases in which the amount of imbalance exceeds a prescribed range established in advance, outputs abnormality detection data indicating that an abnormality has occurred.

IPC Classes  ?

• G01M 1/38 - Combined machines or devices for both determining and correcting imbalance

Abstract

Provided is a completely novel plasma treatment device 100 which is capable of easily handling a wider range of applications. The present invention comprises: a holder 3 which holds an object W to be treated; and a hollow cathode electrode 2 which is disposed facing the holder 3 and in which a bottomed hollow 7 is formed on a plasma generation surface 2a that faces said holder 3, wherein a flat plate cathode electrode 10, the plasma generation surface of which is planar, can be replaced with the hollow cathode electrode 2.

IPC Classes  ?

• H05H 1/46 - Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy

Abstract

A dynamic balancing test and correction apparatus capable of shortening the time required for correcting imbalance in a correction part and improving the entire workflow of the apparatus.

IPC Classes  ?

• G01M 1/34 - Compensating imbalance by removing material from the body to be tested, e.g. from the tread of tyres
• G01M 1/16 - Determining imbalance by oscillating or rotating the body to be tested

Abstract

An intended purpose of this invention is to realize a gear pump suitable for delivery of high-pressure and high-viscosity fluids by using helical gears meshing with each other. For this purpose, the gear pump includes introduction paths for introducing the fluid from a discharge side toward shaft end sides of gear shafts to apply shaft ends of the gear shafts with fluid pressures counterbalancing axial thrusts produced by the helical gears.

IPC Classes  ?

• F03C 2/00 - Rotary-piston engines
• F03C 4/00 - Oscillating-piston engines
• F04C 2/00 - Rotary-piston machines or pumps