CN107327474A - It is a kind of to detect the tilting thrust bearing of axial force of rotating machinery - Google Patents

It is a kind of to detect the tilting thrust bearing of axial force of rotating machinery Download PDF

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Publication number
CN107327474A
CN107327474A CN201710725598.4A CN201710725598A CN107327474A CN 107327474 A CN107327474 A CN 107327474A CN 201710725598 A CN201710725598 A CN 201710725598A CN 107327474 A CN107327474 A CN 107327474A
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CN
China
Prior art keywords
carrier
crushing block
axial force
tilting
rotating machinery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710725598.4A
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Chinese (zh)
Other versions
CN107327474B (en
Inventor
雪增红
白小榜
王运
杨海龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Pump Industry Co Ltd
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Chongqing Pump Industry Co Ltd
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Priority to CN201710725598.4A priority Critical patent/CN107327474B/en
Publication of CN107327474A publication Critical patent/CN107327474A/en
Application granted granted Critical
Publication of CN107327474B publication Critical patent/CN107327474B/en
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/06—Sliding-contact bearings for exclusively rotary movement for axial load only with tiltably-supported segments, e.g. Michell bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/12—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring axial thrust in a rotary shaft, e.g. of propulsion plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/43—Screw compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The tilting thrust bearing of axial force of rotating machinery, including bearing body, thrust disc, tilting pad, swing block, carrier and end cap can be detected the invention discloses a kind of；The thrust disc, tilting pad, swing block and carrier are mounted in bearing body, and pass through end cap locking positioning；There is the end face of the carrier crushing block on several piece arc crushing block, two carriers to be close together respectively with bearing body and end cap；A groove is provided with the outside of crushing block, makes the gap that 4-6mm is formed between crushing block and carrier；Pasted in the inner side of crushing block and be provided with working strain gauge.The present invention is simple in construction, on the basis of the assembling structure of tilting thrust bearing is not changed, can realize the online accurate measurement of axial force.

Description

It is a kind of to detect the tilting thrust bearing of axial force of rotating machinery
Technical field
The present invention relates to axial force of rotating machinery detection means, more particularly to a kind of it can detect axial force of rotating machinery Tilting thrust bearing.
Background technology
The large rotating machinery equipment such as current centrifugal pump, steam turbine, compressor develop to maximization, high speed, and its is reliable Sex chromosome mosaicism is most important, and the size of axial force and variation tendency are to influence its safe operation, are predicted the important ginseng in life-span One of number.Because axial force is difficult to accurately calculate by theory method and empirical method, thrust bearing wearing, damage, main shaft is caused to break The accident such as split to happen occasionally, be only capable of carrying out actual measurement, the online actual axial force for accurately measuring large scale equipment by test method(s) Security sense to raising product operation is great.But for bearing uneven axle using tilting thrust bearing and thrust disc To the large rotating machinery of power, its bearing housing is complicated, space is limited, the swingable property of bearing tile in addition, it is impossible to select Conventional structure flexible member tests axial force；So as to can not accurately carry out the on-line checking of axial force.
The content of the invention
For deficiencies of the prior art, it is an object of the invention to solve axial force of rotating machinery not carrying out The problem of online accurate measurement, can detect the tilting thrust bearing of axial force of rotating machinery there is provided a kind of, can not change On the basis of the assembling structure for becoming tilting thrust bearing, the online accurate measurement of axial force is realized.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is such：One kind can detect whirler The tilting thrust bearing of tool axial force, including bearing body, thrust disc, tilting pad, swing block, carrier and end cap；Institute State thrust disc, tilting pad, swing block and carrier to be mounted in bearing body, and pass through end cap locking positioning；Wherein, it can incline Tile fragment, swing block and carrier are symmetrically distributed in the both sides of thrust disc；The end face of the carrier has several piece arc crushing block, Crushing block on two carriers is close together with bearing body and end cap respectively；It is characterized in that：It is provided with the outside of crushing block One groove, makes the gap that 4-6mm is formed between crushing block and carrier；Pasted in the inner side of crushing block and be provided with work strain Piece.
This programme, using cantilever beam tension and compression deformation principle, is proposed on the basis of tilting thrust bearing carrying dish structure A kind of novel axial power test structure, at the larger and stable position of axial strain variable quantity（At crushing block）Application work Foil gauge, strain variation amount is minimum（On carrier）Position at sticking temperature dummy gauge, with external circuitry constitute measure System, the Light deformation progress actual measurement of axial force is produced by extruding.
Further, on the carrier between adjacent two crushing block, stickup is provided with temperature-compensating foil gauge.
Further, the crushing block is 3 pieces, and is uniformly distributed within one week around carrier.
Further, the end of the carrier is close to central hole, provided with around the centre bore annular groove of one week, the work Stretched into as foil gauge in the annular groove.
Compared with prior art, the invention has the advantages that：
1st, in the case where not changing bearing assembling structure, the installation of normal rated thrust tile fragment is ensure that, uses and exchanges.
2nd, it can slow down the responsive to axial force time, reduce bearing temperature, improve bearing life.
3rd, the on-line monitoring of axial force, and measuring accuracy, sensitivity height can be realized, scope is wide.
Brief description of the drawings
Fig. 1 is the structural representation of tilting thrust bearing.
Fig. 2 is the structural representation of carrier.
Fig. 3 be Fig. 2 along A-A to sectional view.
In figure：1-bearing body, 2-thrust disc, 3-tilting pad, 4-swing block, 5-carrier, 6-crushing block, 7-working strain gauge, 8-temperature-compensating foil gauge.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment：It is a kind of to detect the tilting thrust bearing of axial force of rotating machinery referring to Fig. 1, Fig. 2 and Fig. 3, Including bearing body 1, thrust disc 2, tilting pad 3, swing block 4, carrier 5 and end cap.The thrust disc 2, tilting pad 3, Swing block 4 and carrier 5 are mounted in bearing body 1, and pass through end cap locking positioning；Wherein, tilting pad 3, the and of swing block 4 Carrier 5 is symmetrically distributed in the both sides of thrust disc 2.The end face of the carrier 5 has several piece arc crushing block 6, the extruding Block 6 is 3 pieces, and is uniformly distributed within 5 one weeks around carrier；Crushing block 6 on two carriers 5 is close to bearing body 1 and end cap respectively Together.
A groove is provided with the outside of crushing block 6, makes the gap that 4-6mm is formed between crushing block 6 and carrier 5；This Sample, when carrier 5 receives responsive to axial force, crushing block 6 can produce deformation, and due to being deposited between crushing block 6 and carrier 5 In gap, therefore deformation quantity can substantially be reflected in the inner side of crushing block 6.Paste and be provided with the inner side of crushing block 6 Working strain gauge 7；Pass through working strain gauge 7, you can quickly and accurately detect the deformation quantity of crushing block 6, it is outer coordinating Boundary's circuit, so as to detect the axial force suffered by bearing exactly.During practice of construction, due to the width on work strain side Degree is wider（For 10mm or so）, and the thickness of crushing block 6 is smaller（Only 8mm or so）, therefore, the end of the carrier 5 is leaned on Nearly central hole, provided with around the centre bore annular groove of one week, the working strain gauge 7 is stretched into the annular groove, the annular groove Depth and the thickness sum of crushing block 6 are more than the width of working strain gauge 7（As more than the depth 2mm of annular groove）, so as to It is enough to be preferably operated the assembling of foil gauge 7, and its accuracy of measurement is not influenceed.
In specific implementation process, on the carrier 5 between adjacent two crushing block 6, stickup is provided with temperature-compensating strain Piece 8；So as to further improve the accuracy of axial force detection.
This programme is on the basis of the structure of tilting thrust bearing carrier 5, using cantilever beam tension and compression deformation principle, proposes A kind of novel axial power test structure, at the larger and stable position of axial strain variable quantity（At crushing block 6）Application work Foil gauge 7, strain variation amount is minimum（On carrier 5）Position at sticking temperature dummy gauge 8, with external circuitry constitute survey Amount system, the Light deformation progress actual measurement of axial force is produced by extruding.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than restriction technologies side Case, it will be understood by those within the art that, those modify or equivalent substitution to technical scheme, and The objective and scope of the technical program are not departed from, all should be covered among scope of the presently claimed invention.

Claims (4)

  1. Can detect the tilting thrust bearing of axial force of rotating machinery 1. a kind of, including bearing body, thrust disc, tilting pad, Swing block, carrier and end cap；The thrust disc, tilting pad, swing block and carrier are mounted in bearing body, and are led to Cross end cap locking positioning；Wherein, tilting pad, swing block and carrier are symmetrically distributed in the both sides of thrust disc；The carrier End face there is the crushing block on several piece arc crushing block, two carriers to be close together respectively with bearing body and end cap；It is special Levy and be：A groove is provided with the outside of crushing block, makes the gap that 4-6mm is formed between crushing block and carrier；In crushing block Inner side paste be provided with working strain gauge.
  2. 2. it is according to claim 1 it is a kind of can detect the tilting thrust bearing of axial force of rotating machinery, its feature exists In：On carrier between adjacent two crushing block, stickup is provided with temperature-compensating foil gauge.
  3. 3. it is according to claim 1 it is a kind of can detect the tilting thrust bearing of axial force of rotating machinery, its feature exists In：The crushing block is 3 pieces, and is uniformly distributed within one week around carrier.
  4. 4. it is according to claim 1 it is a kind of can detect the tilting thrust bearing of axial force of rotating machinery, its feature exists In：The end of the carrier is close to central hole, and provided with around the centre bore annular groove of one week, the working strain gauge stretches into this In annular groove.
CN201710725598.4A 2017-08-22 2017-08-22 Tilting pad thrust bearing capable of detecting axial force of rotary machine Active CN107327474B (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201710725598.4A CN107327474B (en) 2017-08-22 2017-08-22 Tilting pad thrust bearing capable of detecting axial force of rotary machine

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CN107327474B CN107327474B (en) 2023-03-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109238543A (en) * 2018-08-01 2019-01-18 沈阳工业大学 Centrifugal compressor axial thrust-measuring device and measurement method
CN112729680A (en) * 2020-12-17 2021-04-30 浙江翰德圣智能再制造技术有限公司 Multifunctional core rod for dynamic balance of impeller
CN113236677A (en) * 2021-05-28 2021-08-10 重庆水泵厂有限责任公司 Bearing cooling and lubricating system and method
JP7338936B2 (en) 2019-06-06 2023-09-05 ニデックドライブテクノロジー株式会社 Torque detection sensor and power transmission

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US3033031A (en) * 1959-07-27 1962-05-08 Waukesha Bearings Corp Tilting pad type thrust bearings having integral means for measuring thrust loads
US3971602A (en) * 1975-06-25 1976-07-27 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Thrust bearing
GB2074254A (en) * 1980-04-18 1981-10-28 Rolls Royce Bearings
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JP2007153226A (en) * 2005-12-07 2007-06-21 Ntn Corp Bearing device for wheel
US20080095610A1 (en) * 2006-10-20 2008-04-24 Werner Bosen Turbomachine
EP1995580A1 (en) * 2006-03-10 2008-11-26 NSK Ltd. Preload measuring device for double row rolling bearing unit
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GB2074254A (en) * 1980-04-18 1981-10-28 Rolls Royce Bearings
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JPH0791441A (en) * 1993-09-21 1995-04-04 Mitsubishi Heavy Ind Ltd Tilting pad thrust bearing
DE10059196A1 (en) * 2000-11-29 2002-06-13 Sartorius Gmbh Axial bearing for rotating shaft with hydrodynamic lubrication comprises base ring with radial bearing segments fitted with piston and cylinder units fed from external fluid source, allowing their positions to be adjusted
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CN204140646U (en) * 2014-08-07 2015-02-04 大连液力机械有限公司 With the tilting bush thrust slide bearing of nozzle
CN205001376U (en) * 2015-08-13 2016-01-27 福斯流体控制（苏州）有限公司 But bearing made of baked clay that inclines of remaining axial force of on -line monitoring pump
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109238543A (en) * 2018-08-01 2019-01-18 沈阳工业大学 Centrifugal compressor axial thrust-measuring device and measurement method
JP7338936B2 (en) 2019-06-06 2023-09-05 ニデックドライブテクノロジー株式会社 Torque detection sensor and power transmission
CN112729680A (en) * 2020-12-17 2021-04-30 浙江翰德圣智能再制造技术有限公司 Multifunctional core rod for dynamic balance of impeller
CN112729680B (en) * 2020-12-17 2023-03-28 浙江翰德圣智能再制造技术有限公司 Multifunctional core rod for dynamic balance of impeller
CN113236677A (en) * 2021-05-28 2021-08-10 重庆水泵厂有限责任公司 Bearing cooling and lubricating system and method
CN113236677B (en) * 2021-05-28 2022-09-09 重庆水泵厂有限责任公司 Bearing cooling and lubricating system and method

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