CN106702136A - Cylindrical cam excitation driven bending-torsional coupling resonance type residual stress relieving device - Google Patents
Cylindrical cam excitation driven bending-torsional coupling resonance type residual stress relieving device Download PDFInfo
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- CN106702136A CN106702136A CN201710053758.5A CN201710053758A CN106702136A CN 106702136 A CN106702136 A CN 106702136A CN 201710053758 A CN201710053758 A CN 201710053758A CN 106702136 A CN106702136 A CN 106702136A
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- cylindrical cam
- torsional
- exciting
- residual stress
- rotating shaft
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a cylindrical cam excitation driven bending-torsional coupling resonance type residual stress relieving device, and relates to a cylindrical cam transmission type alternated force moment bending-torsional coupling resonance type vibratory stress relief method. Torsional vibration output by a cylindrical cam transmission type alternated force moment torsional vibration exciter is applied to a high-rigidity rotary shaft, when the rotating frequency of the rotary shaft is equal to the difference of the natural bending frequency and the natural torsion frequency, based on the bending-torsional coupling resonance theory, namely, torsional vibration excitation with the frequency equal to the natural torsion frequency can excite bending resonance, meanwhile, the bending resonance and the torsional resonance are mutually strengthened, and enough dynamic stress is generated to eliminate the residual stress of the high-rigidity rotary shaft. According to the residual stress relieving device, the problem that bending-torsional coupling resonance vibratory stress relief is limited by a torsional vibration excitation source is solved, the residual stress of the high-rigidity rotary shaft is eliminated through cylindrical cam transmission type alternated force moment bending-torsional coupling resonance, the efficiency is improve, and the safety and reliability of production are improved.
Description
Technical field
The present invention relates to the vibration ageing device in mechanical field, the bending coupling that particularly a kind of cylindrical cam excitation triggers
Close resonant residual stress cancellation element.
Background technology
The residual stress of rotating shaft part is eliminated using the dynamic stress of torsion coupling resonance generation, is needed in implementation process
Want countershaft to apply torsional excitation, the difference for being equal to natural bending frequency and torsional natural frequency when motor rotation frequency constantly, when
The torsional excitation of applying is equal to torsional natural frequency, theoretical by Torsion Coupling, and eccentrically weighted shaft can simultaneously excite flexural resonance, bends
Resonance is mutually strengthened with torsional resonance, produces enough dynamic stress.The torsional excitation mode for using at present mainly has electromagnetic exciting
Device, Pneumatic vibration exciter, hydraulic vibration exciter, but these exciter structures are complicated, reliability is not high, expensive, maintenance cost
Height, performance difficulty.Vibrator of the present invention is made up of component of machine mostly, and reliability is high, compact conformation, parts
Intensity is high, is adapted to larger exciting scope, and the exciting arm of force is adjustable, and actuating cam is adjustable, the exciting force of actuating cam
Controlled by outside variable-frequency power sources with excited frequency, can be adjusted according to the actual conditions of rotating shaft parts, flexibility is strong, into
This is low, and maintenance is easy.Torsional excitation is produced to be applied on the eccentrically weighted shaft of rotation using the torsional excitation device, when motor rotary frequency
Rate is equal to the difference of natural bending frequency and torsional natural frequency, and torsional activator output torsional excitation is set as into torsional oscillation is intrinsic
Frequency, it is theoretical by torsion coupling resonance, while producing flexural resonance, flexural resonance mutually to strengthen with torsional resonance, produce enough
Dynamic stress eliminate the residual stress of high rigidity rotating shaft.
The content of the invention
The present invention provides a kind of torsion coupling resonance type oscillation time-effect method of cylindrical cam driven type alternation torque, solves
The horizontal problem for turning round the restricted torsional excitation source of coupled resonance oscillating aging of generation, by by cylindrical cam driven type alternation torque
Torsional excitation eliminates residual stress to excite torsion coupling resonance, realizes the effect of oscillating aging.
Technical proposal that the invention solves the above-mentioned problems is as follows：
The torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation triggers, including rotating shaft, clutch shaft bearing, the
Two bearings, first bearing seat, second bearing seat, motor, shaft coupling, chassis, disk, eccentric massblock and torsional excitation device,
The torsional excitation device includes exciting frame, the exciting arm of force, positive electricity polar ring, negative electricity polar ring, the first cylindrical cam driver, second
Cylindrical cam driver, positive brush, negative brush and brush base；；First cylindrical cam driver includes that first groove cylinder is convex
Wheel, the first actuating motor, the first actuating rod member and the first actuated slider, the second cylindrical cam driver include first groove cylinder
Cam, the first actuating motor, the first actuating rod member and the first actuated slider；
Rotating shaft passes through clutch shaft bearing and first bearing seat and second bearing and second bearing seat is arranged on chassis, disk
It is fixed in rotating shaft and coaxial with rotating shaft, eccentric massblock is fixed on disk；
Motor is fixedly mounted on chassis, and the output shaft of motor is connected by shaft coupling with rotating shaft one end, the rotating shaft other end
The circle centre position of exciting frame bottom surface is fixedly connected on,
The center of the exciting arm of force is fixedly connected with the center of circle of exciting frame bottom surface, and the first cylindrical cam driver and second is justified
Post cam driver is separately mounted to exciting frame bottom surface and on the position at exciting arm of force two ends,
The structure of the first cylindrical cam driver is as follows：First groove cylindrical cam is connected to the first actuating motor
On output shaft, the first actuated slider is arranged on the first actuating rod member while being embedded in the groove of groove cylindrical cam；
The structure of the second cylindrical cam driver is identical with the first cylindrical cam driver；
Positive electricity polar ring and negative electricity polar ring are arranged on and are fixed on the outer tube wall of exciting frame, and positive electricity polar ring and negative electricity polar ring divide
Not Tong Guo wire and first actuating motor and second actuating motor connection,
Positive brush and negative brush are all fixed on brush base, and positive brush is contacted with positive electricity polar ring, negative brush and negative electrode
Ring is contacted, and positive brush and negative brush are connected to power supply.
The exciting arm of force, the first cylindrical cam driver and the second cylindrical cam driver are with the middle heart of the exciting arm of force
It is in a center of symmetry, and then countershaft produces moment of torsion.
In addition to the junction of center and exciting frame, remaining two end portions is in hanging shape to the exciting arm of force
State.
The torsion coupling resonance type method for removing residual stress that cylindrical cam excitation triggers, concretely comprises the following steps：
(5) will be rigidly connected with rotating shaft by the torsional activator of cylindrical cam driven type alternation torque, clutch disk and partially
Heart quality,
(6) by test, the natural bending frequency of rotating shaft, the relation between torsional natural frequency and rotating speed are obtained,
(7) by calculating, it is determined that by the size and frequency of Leahy formula alternation torque torsional activator output torsional excitation
Rate,
(8) motor is started, setting speed is equal to the difference of natural bending frequency and torsional natural frequency, by Leahy
Formula alternation torque torsional activator output torsional excitation is set as Torsional Vibration Natural Frequency, theoretical by torsion coupling resonance, and bending is altogether
Shake and mutually strengthen with torsional resonance, produce enough dynamic stress to eliminate the residual stress of high rigidity rotating shaft.
It is of the invention to have the prominent advantages that：
Cylinder concave wheel high transmission accuracy, is widely used in engineering goods, and linear motion is produced by rotary motion, works as rotary frequency
Rate determines, it becomes possible to produce the straight line of certain frequency to move back and forth, and using this motion as the driving source of object, can reduce exciting
The impact that device is caused, it is to avoid the vibrated damage of motor.
The reliability of exciting is improved, integral installation is convenient, easy to manufacture, different grooves can be changed according to actual output frequency
Wave number, and the rotary speed of cylinder is adjusted, flexibility is strong, and adaptability is big.
Brief description of the drawings
Fig. 1 is the structure of the torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation of the present invention triggers
Schematic diagram.
Fig. 2 is facing for the torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation of the present invention triggers
Figure.
Fig. 3 is the torsional oscillation of the torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation of the present invention triggers
The structural representation of driver.
Fig. 4 is the first of the torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation of the present invention triggers
The structural representation of cylindrical cam driver.
Fig. 5 is the torsional oscillation of the torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation of the present invention triggers
The front view of driver.
Fig. 6 is the enlarged diagram of location A in Fig. 5.
Specific embodiment
Cylindrical cam excitation trigger torsion coupling resonance type residual stress cancellation element, including rotating shaft 1, clutch shaft bearing 9,
Second bearing 10, first bearing seat 16, second bearing seat 17, motor 7, shaft coupling 11, chassis 14, disk 12, eccentric massblock
13 and torsional excitation device, the torsional excitation device include exciting frame 2, the exciting arm of force 3, positive electricity polar ring 6, negative electricity polar ring 15,
First cylindrical cam driver, the second cylindrical cam driver, positive brush 19, negative brush and brush base 20；First cylinder is convex
Wheel driver includes the actuating actuating actuated slider 23 of rod member 22 and first of motor 4, first of first groove cylindrical cam 21, first,
Second cylindrical cam driver includes actuating motor 5, the second actuating rod member of second groove cylindrical cam 22, second and the second actuating
Sliding block；
Rotating shaft 1 passes through clutch shaft bearing 9 and first bearing seat 16 and second bearing 10 and second bearing seat 17 is arranged on bottom
On disk 14, disk 12 is fixed in rotating shaft 1 and coaxial with rotating shaft 1, and eccentric massblock 13 is fixed on disk 12；
Motor 7 is fixedly mounted on chassis 14, and the output shaft of motor 7 is connected by shaft coupling 11 with rotating shaft one end, rotating shaft
The other end is fixedly connected on the circle centre position of the bottom surface of exciting frame 2,
The center of the exciting arm of force 3 is fixedly connected with the center of circle of the bottom surface of exciting frame 2, the first cylindrical cam driver and second
Cylindrical cam driver is separately mounted to the bottom surface of exciting frame 2 and on the position at the two ends of the exciting arm of force 3,
The structure of the first cylindrical cam driver is as follows：First groove cylindrical cam 21 is connected to the first actuating motor
On 44 output shaft, the first actuated slider 23 is arranged on the first actuating rod member 22 while being embedded in groove cylindrical cam
In groove；The structure of the second cylindrical cam driver is identical with the first cylindrical cam driver；
Positive electricity polar ring 6 and negative electricity polar ring 15 are arranged on and are fixed on the outer tube wall of exciting frame 2, positive electricity polar ring 6 and negative electricity
Polar ring 15 activates motor 5 and is connected by wire 18 with the first actuating motor 444 and second respectively,
Positive brush 19 and negative brush are all fixed on brush base 20, and positive brush 19 is contacted with positive electricity polar ring 6, negative brush with
Negative electricity polar ring 15 is contacted, and positive brush 19 and negative brush are connected to power supply.
Further, the exciting arm of force 3, the first cylindrical cam driver and the second cylindrical cam driver are with exciting force
Arm 3 is centrally formed Central Symmetry, and then countershaft 1 produces moment of torsion.
Further, the exciting arm of force 3 is in addition to the junction of center and exciting frame, remaining both ends office
In vacant state.
Mark 8 is motor cabinet in figure.The exciting frame is cylinder barrel shaped, and positive electricity polar ring 6 and negative electricity polar ring 15 are coaxially pacified
On the cylindrical outer wall face of cylinder barrel shaped exciting frame, one end of cylinder barrel shaped exciting frame is provided with bottom surface or two ends and all sets
There is bottom surface.
During work, motor 7 drives rotating shaft 1 to rotate, and rotating shaft 1 drives the rotation of torsional excitation device, the first actuating motor 444, the
The power line of two actuating motors 5 is connected through the hole in exciting frame 2 by wire 18 with positive electricity polar ring 6 and negative electricity polar ring 15,
When torsional excitation device rotates, positive electricity polar ring 6 and negative electricity polar ring 15 are remained and contacted with positive brush 19 and negative brush, so as to the
The one actuating actuating motor 5 of motor 444, second provides power supply and signal.The operation principle of the first cylindrical cam driver is：First
Rotary electric machine 4 drives first groove cylindrical cam 21 to rotate, and the ditch of groove cylindrical cam is embedded in due to the first actuated slider 23
In groove, so the first actuating rod member 22 is moved back and forth under the transmission of the first turning block.The excitation of first cylindrical cam is being installed
During the parts of device, it is desirable to first groove cylindrical cam 21 with first actuating motor 44 it is coaxial, first actuating rod member 22 it is parallel and
The axis of first groove cylindrical cam 21, and require can be to exciting in the reciprocating stroke range of the first actuating rod member 22
The arm of force effectively clash into so that the exciting arm of force vibrates, and then countershaft 1 produces moment of torsion.Second cylindrical cam driver
Operation principle is identical with the operation principle of the first cylindrical cam driver.
The twisting vibration exported by torsional excitation device is applied in the rotating shaft 1 of the rotation of high rigidity, whenThe rotary frequency of rotating shaft 1 RateIt is equal toNatural bending frequencyWithTorsional natural frequencyDifference when, theoretical by torsion coupling resonance, a frequency is equal to reverses solid
The torsional excitation for having frequency can be while have excited flexural resonance, flexural resonance is mutually strengthened with torsional resonance, generation is enough
Dynamic stress eliminates the residual stress of high rigidity rotating shaft 1.
The torsion coupling resonance type method for removing residual stress that cylindrical cam excitation triggers, concretely comprises the following steps：
(1) will be rigidly connected with rotating shaft by the torsional activator of cylindrical cam driven type alternation torque, clutch disk and partially
Heart quality,
(2) by test, the natural bending frequency of rotating shaft, the relation between torsional natural frequency and rotating speed are obtained,
(3) by calculating, it is determined that by the size and frequency of Leahy formula alternation torque torsional activator output torsional excitation
Rate,
(4) motor is started, setting speed is equal to the difference of natural bending frequency and torsional natural frequency, by Leahy
Formula alternation torque torsional activator output torsional excitation is set as Torsional Vibration Natural Frequency, theoretical by torsion coupling resonance, and bending is altogether
Shake and mutually strengthen with torsional resonance, produce enough dynamic stress to eliminate the residual stress of high rigidity rotating shaft.
Claims (4)
1. the torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation triggers, it is characterised in that including rotating shaft, the
One bearing, second bearing, first bearing seat, second bearing seat, motor, shaft coupling, chassis, disk, eccentric massblock and torsion
Shake driver, and the torsional excitation device includes that exciting frame, the exciting arm of force, positive electricity polar ring, negative electricity polar ring, the first cylindrical cam swash
Encourage device, the second cylindrical cam driver, positive brush, negative brush and brush base；；First cylindrical cam driver includes the first ditch
Groove cylindrical cam, the first actuating motor, the first actuating rod member and the first actuated slider, the second cylindrical cam driver include first
Groove cylindrical cam, the first actuating motor, the first actuating rod member and the first actuated slider；
Rotating shaft passes through clutch shaft bearing and first bearing seat and second bearing and second bearing seat is arranged on chassis, and disk is fixed
In rotating shaft and coaxial with rotating shaft, eccentric massblock is fixed on disk；
Motor is fixedly mounted on chassis, and the output shaft of motor is connected by shaft coupling with rotating shaft one end, and the rotating shaft other end is fixed
The circle centre position of exciting frame bottom surface is connected to,
The center of the exciting arm of force is fixedly connected with the center of circle of exciting frame bottom surface, and the first cylindrical cam driver and the second cylinder are convex
Wheel driver is separately mounted to exciting frame bottom surface and on the position at exciting arm of force two ends,
The structure of the first cylindrical cam driver is as follows：First groove cylindrical cam is connected to the output of the first actuating motor
On axle, the first actuated slider is arranged on the first actuating rod member while being embedded in the groove of groove cylindrical cam；Second
The structure of cylindrical cam driver is identical with the first cylindrical cam driver；
Positive electricity polar ring and negative electricity polar ring are arranged on and are fixed on the outer tube wall of exciting frame, and positive electricity polar ring and negative electricity polar ring lead to respectively
Wire and the first actuating motor and the second actuating motor connection are crossed,
Positive brush and negative brush are all fixed on brush base, and positive brush is contacted with positive electricity polar ring, and negative brush connects with negative electricity polar ring
Touch, positive brush and negative brush are connected to power supply.
2. the torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation as claimed in claim 1 triggers, it is special
Levy and be, the exciting arm of force, the first cylindrical cam driver and the second cylindrical cam driver are with the middle heart of the exciting arm of force
It is in a center of symmetry, and then countershaft produces moment of torsion.
3. the torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation as claimed in claim 1 triggers, it is special
Levy and be, in addition to the junction of center and exciting frame, remaining two end portions is in vacant state to the exciting arm of force.
4. the torsion coupling resonance type method for removing residual stress that cylindrical cam excitation triggers, it is characterised in that concretely comprise the following steps：
(1) will be rigidly connected with rotating shaft by the torsional activator of cylindrical cam driven type alternation torque, clutch disk and eccentric matter
Amount,
(2) by test, the natural bending frequency of rotating shaft, the relation between torsional natural frequency and rotating speed are obtained,
(3) by calculating, it is determined that the size and frequency of torsional excitation are exported by Leahy formula alternation torque torsional activator,
(4) motor is started, setting speed is equal to the difference of natural bending frequency and torsional natural frequency, Leahy formula is handed over
Torque-variable torsional activator output torsional excitation is set as Torsional Vibration Natural Frequency, theoretical by torsion coupling resonance, flexural resonance with
Torsional resonance is mutually strengthened, and produces enough dynamic stress to eliminate the residual stress of high rigidity rotating shaft.
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| CN201710053758.5A CN106702136B (en) | 2017-01-20 | 2017-01-20 | The torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation triggers |
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| CN201710053758.5A CN106702136B (en) | 2017-01-20 | 2017-01-20 | The torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation triggers |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570360A (en) * | 2018-12-29 | 2019-04-05 | 江苏保捷锻压有限公司 | A kind of cold complete machine and its working method that can eliminate machining stress |
| CN109621872A (en) * | 2019-01-18 | 2019-04-16 | 姚和中 | A kind of energy-saving and environment-friendly hot type reactor tank |
| CN111471944A (en) * | 2020-05-19 | 2020-07-31 | 北京钢研高纳科技股份有限公司 | Method for regulating and controlling residual stress of high-temperature alloy blank disc forging through prerotation |
| FR3125335A1 (en) * | 2021-07-19 | 2023-01-20 | Gaona Aero Material Co., Ltd. | Method of regulating residual stresses in blank disc forgings of superalloy by pre-rotation |
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| CN102212672A (en) * | 2011-04-22 | 2011-10-12 | 广西大学 | Flexural coupling resonance type vibratory stress relief device and implementation method thereof |
| CN104390778A (en) * | 2014-10-29 | 2015-03-04 | 吉林大华机械制造有限公司 | Eccentric gear type torsional vibration exciter and eccentric gear type torsional vibration excitation system |
| EP2927660A1 (en) * | 2014-04-04 | 2015-10-07 | Prisma Engineering Maschinen- und Motorentechnik GmbH | Device for testing rotary test samples under load |
| CN206580861U (en) * | 2017-01-20 | 2017-10-24 | 广西大学 | The torsion coupling resonance type residual stress cancellation element that cylindrical cam excitation triggers |
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2017
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Patent Citations (5)
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| CN201942722U (en) * | 2010-12-31 | 2011-08-24 | 广西大学 | Six degrees of freedom vibratory stress relief device |
| CN102212672A (en) * | 2011-04-22 | 2011-10-12 | 广西大学 | Flexural coupling resonance type vibratory stress relief device and implementation method thereof |
| EP2927660A1 (en) * | 2014-04-04 | 2015-10-07 | Prisma Engineering Maschinen- und Motorentechnik GmbH | Device for testing rotary test samples under load |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570360A (en) * | 2018-12-29 | 2019-04-05 | 江苏保捷锻压有限公司 | A kind of cold complete machine and its working method that can eliminate machining stress |
| CN109621872A (en) * | 2019-01-18 | 2019-04-16 | 姚和中 | A kind of energy-saving and environment-friendly hot type reactor tank |
| CN111471944A (en) * | 2020-05-19 | 2020-07-31 | 北京钢研高纳科技股份有限公司 | Method for regulating and controlling residual stress of high-temperature alloy blank disc forging through prerotation |
| CN111471944B (en) * | 2020-05-19 | 2021-07-23 | 北京钢研高纳科技股份有限公司 | Method for regulating and controlling residual stress of high-temperature alloy blank disc forging through prerotation |
| FR3125335A1 (en) * | 2021-07-19 | 2023-01-20 | Gaona Aero Material Co., Ltd. | Method of regulating residual stresses in blank disc forgings of superalloy by pre-rotation |
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