LU503683B1 - A fast and accurate coupling centering device and operation method thereof - Google Patents

A fast and accurate coupling centering device and operation method thereof Download PDF

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Publication number
LU503683B1
LU503683B1 LU503683A LU503683A LU503683B1 LU 503683 B1 LU503683 B1 LU 503683B1 LU 503683 A LU503683 A LU 503683A LU 503683 A LU503683 A LU 503683A LU 503683 B1 LU503683 B1 LU 503683B1
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LU
Luxembourg
Prior art keywords
fast
coupling
centering device
fixing
coupling centering
Prior art date
Application number
LU503683A
Other languages
French (fr)
Inventor
Changbao Wang
Original Assignee
Huaneng Shandong Power Generation Co Ltd Baiyanghe Power Plant
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Application filed by Huaneng Shandong Power Generation Co Ltd Baiyanghe Power Plant filed Critical Huaneng Shandong Power Generation Co Ltd Baiyanghe Power Plant
Application granted granted Critical
Publication of LU503683B1 publication Critical patent/LU503683B1/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • G01B5/0004Supports
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/16Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same abutted flanges
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/08Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/24Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B5/25Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00Measuring instruments characterised by the use of mechanical techniques
    • G01B3/22Feeler-pin gauges, e.g. dial gauges
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The application relates to the technical field of coupling centering and provides a fast and accurate coupling centering device, comprising: a fast fixing device, a meter moving clamp device, a measuring surface optimization device and a dial gauge; The meter moving device is used to make axial displacement on the fixing device and is compatible with couplings of different spacing; The dial gauge is used to transmit and calculate the real-time measurement data to a computer for displaying the center offset. The application further provides an operation method for a fast and accurate coupling centering device, which improves work efficiency and the accuracy of coupling centering.

Description

A fast and accurate coupling centering device and operation method */*°S688 thereof
Technical field
The application relates to the technical field of coupling centering, in particular to a fast and accurate coupling centering device and operation method thereof.
Background technology
Coupling, a general part of machinery, is used for connecting the two shafts (drive shaft and driven shaft) in different mechanisms to rotate them together to transmit torque. Applied in high speed and heavy load power transmission, the coupling is used to cushion, absorb shock and improve the dynamic performance of shafting. Coupling consists of two halves connected with the drive shaft and driven shaft respectively. Generally, the prime-mover is connected with a work machine through the coupling, which is the most commonly used connection part of mechanical product shafting drive. Coupling centering is an important task in the maintenance of power plant rotating machinery, and the rotating machinery is made up of two rotating shafts connected by couplings of various types. To ensure the normal operation of the rotating machinery, the coupling must be centered accurately, That is, the two rotating shafts are concentric and the transverse plane of the coupling is parallel without opening and there is no dislocation in the center. If the coupling center of the rotating machinery is inaccurate, it will inevitably cause abnormal vibration of rotating machinery to damage the bearing and shorten service life. Therefore, in each maintenance, the coupling centering of rotating machinery must be carried out to ensure the deviation of the two shafts no more than the specified value.
At present, the method commonly used is a magnetic meter frames with dial gauge, which is tedious in operation, affected more by human factors, prone to be wrong in data reading and computing, and the center adjustment time of the conventional dial gauge method is long.
Although the laser centering method has high accuracy, a large investment is needed and is not suitable for large-scale application. It is also greatly affected by the environment, when the air relative humidity is larger or there are more dust particles in the air, the accuracy will decrease, resulting in poor practicability. In order to meet the demand of production site, it is necessary to realize automatic coupling centering.
Summary of the application
In view of the technical problems above, a fast and accurate coupling centering device is disclosed in the application, which is easy to be operated, labor-saved, time-saved, low cost and has accurate measurement data.
To achieve the above aim, a fast and accurate coupling centering device is provided in the application, comprising: a fast fixing device, a meter moving clamp device, a measuring surfabs/503683 optimization device and a dial gauge, The fast fixing device is used for fixing a coupling compatibly, fast and firmly; The meter moving device can make axial displacement on the fixing device and is compatible with couplings of different spacing; The measuring surface optimization device is used for optimizing the circumference and transverse plane with larger inaccuracy to reduce the influence of the measuring point on the measured data; The dial gauge can transmit the measurement data to a computer in real time through a wireless connection, and display the center offset in real time and guide the thickness of the spacer and the direction of adjustment through calculating.
In some embodiments, the fast fixing device uses a clamping position for fixing the chain on one side of a standard sleeve roller chain in the circumferential direction of the coupling, and a fastening mechanism made of bolts on one side enables the chain to closely fit the circumference of the coupling.
In some embodiments, the angle of a fixed clamp seat of the fast fixing device is designed to 120°, width is 30mm.
In some embodiments, the displacement range of the meter moving device on the fast fixing device is 0~550mm.
In some embodiments, the meter moving device comprises a sliding bar, which is arranged on side A of the fixed clamp seat and provided with a double dovetail groove to reduce the deviation of the sliding bar when moving, and the sliding bar is fixed by the fixed bolt when moves to a certain position.
In some embodiments, a large area plane with surface finish of Ra0.8 is arranged on both sides of the fixed clamp seat in side B of the measuring surface optimization device; A stainless steel sheet with thickness of 0.5mm is provided on the lower part of the fixed clamp seat as a measuring surface in circumferential direction.
In some embodiments, the dial gauge has the function of data distance-transmission and data-computing.
An operation method for a fast and accurate coupling centering device based on the same conception, comprising the following steps:
Step 1, fixing the coupling on the fixed clamp seat, and fixing a dial gauge for measuring circumference and two dial gauges for measuring the opening of the transverse plane at a predetermined position;
Step 2, taking the measured diameter of the coupling as D, the distance from the transverse plane of the coupling to the bolt in the first corner and the second corner of a motor as L1 and L2 respectively, and inputting the measured distance into a computer and running the coupling along the moving direction of the device, the displacement data is showed on the computer k/503683 real time.
Step 3, selecting the circumference values and transverse plane values measured at the four positions of 0°, 90°, 180° and 270°, and the transverse plane values displayed in the four position inside the circumference are represented as al, a2, a3 and a4, the circumference values displayed in the outer circle are represented as b1, b2, b3 and b4;
Step 4, the computer will calculate and process the measured values passed into the computer according to the principle of similar triangle to further obtain the specific value adjustment quantity;
Step 5, according to the value adjustment quantity, the spacer in the motor side is adjusted, and the thickness of the spacer and the adjustment direction are guided to improve the compatibility, central quality and efficiency to reduce the work strength and computing error.
In some embodiments, the principle of calculating the adjustment quantity of the similar triangle is:
The adjustment quantity of the rank angle: L1/Dx (al-a3) +(b1-b3)
The adjustment quantity of the relief angle: L2/Dx (al-a3) +(b1-b3)
In conclusion, the beneficial effects of the application: in the application, a detachable separated structure is adopted and the spacing thereof can be adjusted; The coupling size can be selected according to the actual situation, and it has a wide range of application; The material of the centering device is easy to be obtained, low cost and has high precision, which fully meets the needs of measurement.
Description of attached drawings
To state the technical scheme of the example in the application clearer, a brief description of the attached drawings needed in the example is given following. It is obvious that the attached drawings described below are only several examples of the application, for the ordinary technicians in the field, other drawings can be obtained from these drawings without any creative effort.
Figure 1 is a functional module diagram of each component of a fast and accurate coupling centering device in the application;
Figure 2 is a fast fixing part diagram of a fast and accurate coupling centering device in the application;
Figure 3 is a meter moving part diagram of a fast and accurate coupling centering device in the application;
Figure 4 is a measurement surface optimization part diagram of a fast and accurate coupling centering device in the application; LUS03683
Figure 5 is an operation method flow diagram of a fast and accurate coupling centering device in the application.
Specific embodiments
In combination with the attached drawings of the examples in the invention, the technical scheme of the examples in the invention is described clearly and completely. It is obvious that the described examples are only part in the invention, not all.
The examples of the embodiments are shown in the attached drawings, wherein, the same or similar label represents the same or similar element or the element with same or similar function. The following examples described by reference to the drawings are exemplary and are used only to interpret this invention and cannot be understood as a limitation to this invention.
Example 1, as shown in figure 1 to 4, a fast and accurate coupling centering device is provided in the application, comprising: a fast fixing device, a meter moving clamp device, a measuring surface optimization device and a dial gauge; The fast fixing device is used for fixing a coupling compatibly, fast and firmly; The meter moving device can make axial displacement on the fixing device and is compatible with couplings of different spacing; The measuring surface optimization device is used for optimizing the circumference and transverse plane with larger inaccuracy to reduce the influence of the measuring point on the measured data; The dial gauge can transmit the measurement data to a computer in real time through a wireless connection, and display the center offset in real time and guide the thickness of the spacer and the direction of adjustment through calculating.
In some embodiments, the fast fixing device uses a clamping position for fixing the chain on one side of a standard sleeve roller chain in the circumferential direction of the coupling, and a fastening mechanism made of bolts on one side enables the chain to closely fit the circumference of the coupling.
In some embodiments, the angle of a fixed clamp seat of the fast fixing device is designed to 120°, width is 30mm.
In some embodiments, the displacement range of the meter moving device on the fast fixing device is 0~550mm,
In some embodiments, the meter moving device comprises a sliding bar, which is arranged on side A of the fixed clamp seat and provided with a double dovetail groove to reduce the deviation of the sliding bar when moving, and the sliding bar is fixed by the fixed bolt when moves to a certain position, as shown in figure 3, the dial gauge can clamps in double direction.
In some embodiments, the measuring surface optimization part, is used for optimizing the circumference and transverse plane with larger inaccuracy to reduce the influence of the measuring point on the measured data; The coupling used in the field has the phenomenon bF503683 corrosion and pitting in the circumferential direction, the axial measurement spacing is too small to be clamped by the dial gauge and the transverse plane measurement area is too small whereby the dial gauge contact is easy to slip. A large area plane with surface finish of Ra0.8 is arranged 5 on both sides of the fixed clamp seat in side B of the measuring surface optimization device; A stainless steel sheet with thickness of 0.5mm is provided on the lower part of the fixed clamp seat as a measuring surface in circumferential direction.
In some embodiments, the dial gauge has the function of data distance-transmission and data-computing, and can be moved back and forth on the fixed seat to accommodate the axial size of the coupling.
Example 2, as shown in figure 5, an operation method for a fast and accurate coupling centering device based on the same conception, comprising the following steps:
Step 1, fixing the coupling on the fixed clamp seat, and fixing a dial gauge for measuring circumference and two dial gauges for measuring the opening of the transverse plane at a predetermined position;
Step 2, taking the measured diameter of the coupling as D, the distance from the transverse plane of the coupling to the bolt in the first corner and the second corner of a motor as L1 and L2 respectively, and inputting the measured distance into a computer and running the coupling along the moving direction of the device, the displacement data is showed on the computer in real time.
Step 3, selecting the circumference values and transverse plane values measured at the four positions of 0°, 90°, 180° and 270°, and the transverse plane values displayed in the four position inside the circumference are represented as al, a2, a3 and a4, the circumference values displayed in the outer circle are represented as b1, b2, b3 and b4;
Step 4, the computer will calculate and process the measured values passed into the computer according to the principle of similar triangle to further obtain the specific value adjustment quantity;
Step 5, according to the value adjustment quantity, the spacer in the motor side is adjusted, and the thickness of the spacer and the adjustment direction are guided to improve the compatibility, central quality and efficiency to reduce the work strength and computing error.
In some embodiments, the principle of calculating the adjustment quantity of the similar triangle is:
The adjustment quantity of the rank foot: L1/Dx (al-a3) +(b1-b3)
The adjustment quantity of the relief angle: L2/Dx (al-a3) +(b1-b3)
In conclusion, the beneficial effects of the application: in the application, a detachabt&503683 separated structure is adopted and the spacing thereof can be adjusted; The coupling size can be selected according to the actual situation, and it has a wide range of application; The material of the centering device is easy to be obtained, low cost and has high precision, which fully meets the needs of measurement.
According to the above data, the cost of the transformation can be recovered in one year at most, and in the long run, this transformation will significantly improve the safety and economy of unit operation.
What is said above is only the better specific embodiments, but the protection scope of the invention is not limited to this. Within the scope of technology disclosed by the invention, equivalent substitution or alteration according to the technical scheme of the invention and inventive concept thereof shall be covered by the protection scope of the invention.

Claims (9)

CLAIMS LU503683
1. A fast and accurate coupling centering device, comprising: a fast fixing device (1), a meter moving clamp device (2), a measuring surface optimization device (3) and a dial gauge (4); The fast fixing device is used for fixing a coupling compatibly, fast and firmly; The meter moving device can make axial displacement on the fixing device and is compatible with couplings of different spacing; The measuring surface optimization device is used for optimizing the circumference and transverse plane with larger inaccuracy to reduce the influence of the measuring point on the measured data; The dial gauge can transmit the measurement data to a computer in real time through a wireless connection, and display the center offset in real time and guide the thickness of the spacer and the direction of adjustment through calculating.
2. The fast and accurate coupling centering device of claim 1, characterized by, the fast fixing device uses a clamping position for fixing the chain on one side of a standard sleeve roller chain in the circumferential direction of the coupling, and a fastening mechanism made of bolts on one side enables the chain to closely fit the circumference of the coupling.
3. The fast and accurate coupling centering device of claim 1, characterized by, the angle of a fixed clamp seat of the fast fixing device is designed to be 120°, width is 30mm.
4. The fast and accurate coupling centering device of claim 1, characterized by, the displacement range of the meter moving device on the fast fixing device is 0~550mm.
5. The fast and accurate coupling centering device of claim 1, characterized by, the meter moving device comprises a sliding bar, which is arranged on side A of the fixed clamp seat and provided with a double dovetail groove (5) to reduce the deviation of the sliding bar when moving, and the sliding bar is fixed by the fixed bolt when moves to a certain position.
6. The fast and accurate coupling centering device of claim 1, characterized by, a large area plane with surface finish of Ra0.8 is arranged on both sides of the fixed clamp seat in side B of the measuring surface optimization device; A stainless steel sheet with thickness of 0.5mm is provided on the lower part of the fixed clamp seat as a measuring surface in circumferential direction.
7. The fast and accurate coupling centering device of claim 1, characterized by, the dial gauge has the function of data distance-transmission and data-computing.
8. An operation method for a fast and accurate coupling centering device, comprising the 503683 following steps: Step 1, fixing the coupling on the fixed clamp seat, and fixing a dial gauge for measuring circumference and two dial gauges for measuring the opening of the transverse plane at a predetermined position; Step 2, taking the measured diameter of the coupling as D, the distance from the transverse plane of the coupling to the bolt in the first corner and the second corner of a motor as L1 and L2 respectively, and inputting the measured distance into a computer and running the coupling along the moving direction of the device, the displacement data is showed on the computer in real time; Step 3, selecting the circumference values and transverse plane values measured at the four positions of 0°, 90°, 180° and 270°, and the transverse plane values displayed in the four position inside the circumference are represented as al, a2, a3 and a4, the circumference values displayed in the outer circle are represented as b1, b2, b3 and b4; Step 4, the computer will calculate and process the measured values passed into the computer according to the principle of similar triangle to further obtain the specific value adjustment quantity; Step 5, according to the value adjustment quantity, the spacer in the motor side is adjusted, and the thickness of the spacer and the adjustment direction are guided to improve the compatibility, central quality and efficiency to reduce the work strength and computing error.
9. The fast and accurate coupling centering device of claim 8, characterized by, the principle of calculating the adjustment quantity of the similar triangle is: The adjustment quantity of the rank angle: L1/Dx (al-a3) +(b1-b3) The adjustment quantity of the relief angle: L2/Dx (al-a3) +(b1-b3)
LU503683A 2022-09-29 2023-03-18 A fast and accurate coupling centering device and operation method thereof LU503683B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211219095.7A CN116294889A (en) 2022-09-29 2022-09-29 Quick and accurate coupler centering device and working method thereof

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Publication Number Publication Date
LU503683B1 true LU503683B1 (en) 2023-09-20

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CN116294889A (en) 2023-06-23

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Effective date: 20230920