Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for measuring mechanical seal ring friction

A technology for mechanical seals and measuring devices, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., can solve problems such as the inability to meet the needs of friction force measurement, and achieve comprehensive and improved measurement of friction force of mechanical seal rings The effect of reliability and simple experimental principle

Active Publication Date: 2019-05-21
DALIAN UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing friction measurement equipment cannot meet the demand for friction measurement due to changes in rotation angle

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for measuring mechanical seal ring friction
  • Device and method for measuring mechanical seal ring friction
  • Device and method for measuring mechanical seal ring friction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a mechanical seal ring friction measurement device includes a load and force measurement module 2 for applying pressure to the moving ring 24, a displacement measurement module 3 for measuring the displacement of the moving ring 24, and a device for driving the mechanical seal ring W to rotate along its axis. Turntable module 4, control module 5, frame-shaped base 1, support plate 6 fixed on the top of base 1, workbench 7 fixed in the middle of base 1 and arranged horizontally, loading and force measuring module 2 and displacement measuring module 3 are respectively fixedly connected to the support plate 6, the turntable module 4 is fixed on the workbench 7, and the control module 5 is fixed on the bottom of the base 1;

[0034] Such as figure 2 As shown, the loading and force measuring module 2 includes a servo electric cylinder 8, a force sensor 9, a floating joint 10 and a pressure plate 11; the servo electric cylinder 8 is fixed on the s...

Embodiment 2

[0041] A method for measuring the frictional force of a mechanical seal ring, comprising the steps of:

[0042] Preparatory stage: Fix the static ring 12 of the corresponding diameter of the mechanical seal ring W to be measured on the bottom surface of the pressure plate 11, fix the mechanical seal ring W to be measured on the rotary table 23, and input the inherent parameters such as the height and diameter of the mechanical seal ring W Go to the measurement interface, and give the control information so that the servo electric cylinder 8 can move according to a certain rule;

[0043] Measurement stage: the mechanical seal ring W rotates continuously with the rotary table 23 under the drive of the motor 19 (the rotary table 23 is driven to rotate by the conveyor belt 21, and the mechanical seal ring W is fixed on the rotary table 23, and the motor 19 can drive the mechanical seal ring W rotates circumferentially at a certain speed, thereby ensuring the relative rotation betw...

Embodiment 3

[0047] A method for measuring the frictional force of a mechanical seal ring, comprising the steps of:

[0048] Preparatory stage: fix the static ring 12 corresponding to the diameter of the mechanical seal ring W to be measured on the bottom surface of the platen 11, and fix the mechanical seal ring W to be measured on the rotary table 23;

[0049] Measurement stage: the static ring 12 is driven by the servo electric cylinder 8 to move downward in the vertical direction at a fast forward speed, and when the lower surface of the static ring 12 is 0.1-1mm away from the upper surface of the moving ring 24, the static ring 12 temporarily stops downward Movement, control the movement of the X-direction linear module 14 and the Z-direction linear module 13, move the laser displacement sensor 17 to the measurement position, ensure that the upper surface of the static ring is within the effective measurement range of the laser displacement sensor 17, and the static ring 12 is in the s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a mechanical sealing ring friction force measurement device and method. The measurement device comprises a loading and force measurement module 2, a displacement measurement module 3, a rotary table module 4, a control module 5, a frame-shaped pedestal 1, a supporting plate 6 fixed at the top of the pedestal 1 and a workbench 7 fixed in the pedestal. The friction force measurement method adopts two modes of the working condition state measurement and the offline state measurement. The mechanical sealing ring friction force measurement device adopts a vertical loading measurement structure, and a loading head adopts a floating loading structure, so that the problem that the loading force and the motion direction generate the unbalance loading, is avoided. On a rotation working condition and at different corner positions, a force measurement sensor and a displacement sensor measure the force and the displacement simultaneously, and the relation among the force, the displacement and the time is determined by a control system. The advantage of the present invention is that the work state of a mechanical sealing ring during an actual work process can be simulated to load and unload a rotating seal ring.

Description

technical field [0001] The invention relates to the technical field of friction measurement, in particular to a mechanical seal ring friction measurement device and measurement method. Background technique [0002] The mechanical seal ring is an end face sealing device, which is composed of a static ring, a moving ring and an elastic element. The end faces of the static ring and the moving ring are compressed by the elastic element to achieve the sealing effect. Because of its reliable operation, small leakage, long service life, and low power consumption, it has been widely used in nuclear main pumps. The nuclear main pump is the core component that drives the high-pressure, high-temperature and radioactive coolant to circulate between the steam generator and the core in the nuclear power plant, and the mechanical seal ring is a key part to ensure the stable, safe and reliable operation of the nuclear main pump. The friction force on the moving ring is an important factor ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00
CPCG01L5/0028
Inventor 康仁科朱祥龙董志刚杨明伟高尚
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com