CN106908178A - High speed and precision main shaft pretightning force experimental rig and its application method - Google Patents
High speed and precision main shaft pretightning force experimental rig and its application method Download PDFInfo
- Publication number
- CN106908178A CN106908178A CN201610976920.6A CN201610976920A CN106908178A CN 106908178 A CN106908178 A CN 106908178A CN 201610976920 A CN201610976920 A CN 201610976920A CN 106908178 A CN106908178 A CN 106908178A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- rotor
- bearing
- pretightning force
- main shaft
- 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
Links
Classifications
-
- 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
- G01L5/0009—Force sensors associated with a bearing
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of high speed and precision main shaft pretightning force experimental rig and its application method, front sleeve and after sleeve are respectively arranged with the two ends of pedestal, rotor is arranged in front sleeve and after sleeve by bearing；The front sleeve is fixed with pedestal, and the after sleeve is slidably arranged on pedestal by guide finger；Piezoelectric actuator support is provided with pedestal between front sleeve and after sleeve, multiple piezoelectric actuators for promote after sleeve parallel with rotor are evenly equipped with along rotor circumference on executor support.Pretightning force, the pretension displacement of after sleeve and the pretension displacement of rotor when the measurable testing stand of the present invention is static, draw pretightning force and the correlation of pretension displacement under static state.The vibration of the pretension displacement of pretightning force, after sleeve when can be operated with measuring test-bed, the pretension displacement of rotor, the temperature of bearing, front sleeve and after sleeve, to study the relation between each parameter more than under rotor motion state.It is applicable to high-speed precision digital control Spindle Unit of Machine Tool.
Description
Technical field
The present invention relates to high speed and precision main shaft pretightning force control field, more particularly to a kind of high speed and precision main shaft pretightning force
Experimental rig and its application method.
Background technology
Main shaft is the core functional components of lathe, and its performance directly influences the performance of complete machine tool.High speed and precision main shaft
The pretension of bearing is the main factor for influenceing main axis stiffness, precision and reliability.Change of the high-speed precision bearing to pretightning force
It is extremely sensitive.Therefore rotating speed during spindle processing according to main shaft, temperature rise, load and the operating mode such as initially assemble to pretightning force
Implement Based Intelligent Control, so as to realize dynamic, heat of the main shaft in comprising low speed high torque and the whole range of speeds of high-speed high-power
Step response is global and excellent.How to determine that main shaft entirely turns comprising low speed high torque and high-speed high-power by the method for quantification
The global simultaneous excellent optimum preload of dynamic, thermal characteristic in fast scope, and pretightning force is implemented from dynamics, thermodynamics
Based Intelligent Control has important directive significance！
At present, many control devices on main shaft pretightning force are had both at home and abroad, but existing control device is base
In the closed-loop control of closed-loop control or the pretension displacement of pretightning force, it is impossible to disclose pretightning force-main shaft thermal characteristics-main shaft dynamic special
The correlation of property, and intelligent control is carried out to pretightning force according to the correlation of pretightning force-main shaft thermal characteristics-main shaft dynamic characteristic
System.Therefore, according to the requirement of special operation condition or pretightning force, exploitation simultaneously have positioning pretension, level pressure pretension, variable pretension,
Main shaft bearing cooling seems particularly urgent with the pretightning force Based Intelligent Control testing stand of monitoring temperature.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of high speed and precision main shaft pretightning force experimental rig
And its application method.
The present invention is achieved by the following technical solutions：
A kind of high speed and precision main shaft pretightning force experimental rig, the two ends of pedestal (1) be respectively arranged with front sleeve (4) and after
Sleeve (14), rotor (2) is arranged in front sleeve and after sleeve by bearing；
The front sleeve is fixed with pedestal, and the after sleeve is slidably arranged on pedestal by guide finger；
Piezoelectric actuator support (9), the edge on executor support are provided with pedestal between front sleeve and after sleeve
Rotor circumference is evenly equipped with multiple piezoelectric actuators (38) for promote after sleeve parallel with rotor, the piezoelectric actuator
It is slidably arranged in the unthreaded hole of piezoelectric actuator support, force sensor is fixed in one end relative with after sleeve of piezoelectric actuator
(39), the other end of piezoelectric actuator is connected with the pretightning force regulating bolt (36) being embedded on executor support；
Its circumference is provided with cooling water channel on the outer tube wall of front sleeve and after sleeve；
Insertion is provided with temperature sensor in front sleeve and after sleeve, the operating temperature for detecting bearing；
Insertion is provided with vibrating sensor in front sleeve and after sleeve, for detecting radial vibration when rotor rotates
Signal；
After sleeve displacement transducer (30), the axial displacement for monitoring after sleeve are set in after sleeve；
The rotor displacement sensor (28) for monitoring rotor axial displacement is provided with pedestal；
The encoder (26) for monitoring rotor speed is provided with pedestal.
In the above-mentioned technical solutions, the front sleeve is bolted and is fixed on the pedestal, is set in front sleeve
Have bearing I and bearing II to install rotor, by the first locking nut by bearing I and the axial locking of bearing II on rotor；Before
The two ends of sleeve are separately installed with positioning end cap (35) and drive end bearing bracket (3), and the positioning end cap is bolted before being fixed on
The inner of sleeve, the drive end bearing bracket is threadedly secured to the outer end of front sleeve, for compressing bearing outer ring.Further, it is preceding
Sleeve is embedded in and is provided with the temperature sensor of bearing I (22) and the temperature sensor of bearing II (27), the temperature sensor of the bearing I
Probe be located near bearing I, the operating temperature for detecting bearing I, the probe of the temperature sensor of the bearing II is located at axle
Hold near II, the operating temperature for detecting bearing II.
In the above-mentioned technical solutions, bearing III and bearing IV are provided with after sleeve to install rotor, by the second locking
Nut is by bearing III and the axial locking of bearing IV on rotor；The outer end of after sleeve is provided with rear end cap (17), for compression axis
Bearing outer-ring.Further, after sleeve is embedded in and is provided with the temperature sensor of bearing III (18) and the temperature sensor of bearing IV (16),
The probe of the temperature sensor of the bearing III is located near bearing III, the operating temperature for detecting bearing III, the bearing IV
The probe of temperature sensor is located near bearing IV, the operating temperature for detecting bearing IV.
In the above-mentioned technical solutions, be evenly equipped with the piezoelectric actuator support three it is parallel with rotor for installing
The unthreaded hole of piezoelectric actuator is stated, three piezoelectric actuators are slidably arranged in three parallel unthreaded holes respectively.
In the above-mentioned technical solutions, the preceding cooling being connected with first cooling water channel (34) of front sleeve is provided with pedestal
Liquid inlet pipe joint (6) and preceding cooling liquid outlet pipe joint (8), and be connected with second cooling water channel (41) of after sleeve
Coolant inlet pipe joint (11) and rear cooling liquid outlet pipe joint (13) afterwards.Further, the preceding coolant inlet pipe connects
Head (6) is provided with the preceding coolant inlet temperature sensor (5) for monitoring preceding coolant inlet temperature, the preceding cooling liquid outlet
Pipe joint (8) is provided with the preceding cooling liquid outlet temperature sensor (7) for monitoring preceding cooling liquid outlet temperature, the rear coolant
Inlet pipe joint (11) is provided with the rear coolant inlet temperature sensor (10) for coolant inlet temperature after monitoring, it is described after
Cooling liquid outlet pipe joint (13) be provided with for cooling liquid outlet temperature after monitoring after cooling liquid outlet temperature sensor (12).
In the above-mentioned technical solutions, multiple Positioning screws (15) parallel with rotor are being set in after sleeve outer end, are using
Level pressure pretension pattern and positioning pretension module under set pretightning force is switched.
The application method of described high speed and precision main shaft pretightning force experimental rig, comprises the following steps：
(1) lead to coolant and oil-air lubrication after the completion of experimental rig assembling, maximum speed according to rotor (i.e. main shaft) and
Cooling, lubricating condition set the initial pretightning force of rotor；Circulate three pretightning force regulating bolts of regulation successively by torque spanner
(36), pretightning force regulating bolt promotes piezoelectric actuator (38) in unthreaded hole to the Slideslip of after sleeve (14), makes piezoelectric actuating
The force snesor (39) of device end loads axial pre tightening force to after sleeve (14), after after sleeve stress, after after sleeve drives successively
Bearing, locking nut load axial pre tightening force to rotor, and axial pretightening of the force sensor measuring to rotor is passed through in loading procedure
Power size, make the show value of three force snesors equal and show value sum be equal to setting rotor initial pretightning force；
(2) under stationary rotor state, the loading further to rotor of three elongations of piezoelectric actuator of control is axially pre-
Clamp force, pretightning force, the pretension displacement of after sleeve and the pretension displacement of rotor are gathered by data collecting card respectively, under drawing static state
Pretightning force and the correlation of pretension displacement；
(3) drive rotor to rotate, the rotating speed of rotor is measured by encoder, the rotating speed according to rotor controls three pressures respectively
The elongation of motor-driven cylinder further loads axial pre tightening force to rotor, makes the show value of three force snesors equal and shows
Value sum is equal to the pretightning force of setting, while gathering pretightning force, the pretension displacement of after sleeve, rotor respectively by data collecting card
Pretension displacement, the temperature of bearing, the vibration of front sleeve and after sleeve；Rotating speed is stepped up until the maximum speed of rotor；
(4) under a certain rotating speed, can be by changing the temperature and flow velocity of rotor coolant so as to change or adjustment axis
The pretightning force held；
(5) rotating speed of rotor is gradually reduced after the completion of testing, and pretightning force is gradually reduced according to rotating speed, until returning to just
Beginning pretightning force.
Further, in process of the test, it is fixed to be realized by after sleeve displacement transducer (30) and Positioning screw (15)
The free switching of position pretension and level pressure pretension.
The advantages of the present invention are：
High speed and precision main shaft pretightning force experimental rig of the invention, pretightning force when measurable testing stand is static, after sleeve
Pretension displacement and the pretension displacement of rotor, draw pretightning force and the correlation of pretension displacement under static state.Experiment can also be measured
Pretightning force, the pretension displacement of after sleeve, the pretension displacement of rotor, the temperature of bearing, front sleeve and after sleeve when platform is operated
Vibration, to study the relation more than under rotor motion state between each parameter.
The present invention uses piezoelectric actuator as the loading device of main shaft pretightning force, with high rigidity, high position precision, sound
Answer fast advantage.
The present invention can realize the closed loop control based on pretension displacement by piezoelectric actuator, force snesor and displacement transducer
System, the closed-loop control based on pretightning force, positioning, the free switching of level pressure pretension.
The present invention can be monitored by temperature sensor and outside cooling and adjust the temperature rise of bearing.
The present invention for disclosing the correlation of pretightning force-main shaft thermal characteristics-main shaft dynamic characteristic, and according to pretightning force-
The correlation of main shaft thermal characteristics-main shaft dynamic characteristic carries out Based Intelligent Control to pretightning force.
Brief description of the drawings
Fig. 1 is high speed and precision main shaft pretightning force experimental rig three-dimensional normal axomometric drawing of the invention；
Fig. 2 is axial front view of the invention；
Fig. 3 is level (A-A) sectional view by rotor axis of the invention；
Fig. 4 is vertical (B-B) sectional view by rotor axis of the invention；
Fig. 5 is the transverse sectional view (piezoelectric actuator position C-C) perpendicular to rotor axis of the invention.
Label title in figure：1. pedestal, 2. rotor, 3. drive end bearing bracket, 4. front sleeve, 5. before coolant inlet TEMP
Device, 6. before coolant inlet pipe joint, 7. before cooling liquid outlet temperature sensor, 8. before cooling liquid outlet pipe joint, 9. start
Device support, 10. after coolant inlet temperature sensor, coolant inlet pipe joint after 11., after 12. cooling liquid outlet temperature pass
Sensor, cooling liquid outlet pipe joint after 13., 14. after sleeves, 15. Positioning screws, the temperature sensor of 16. bearing IV, 17. rear ends
Lid, the temperature sensor of 18. bearing III, 19 bearings IV, 20. bearings III, 21. encoder supports, the temperature sensor of 22. bearing I,
23. first locking nuts, 24. bearings I, the of 25 bearing II, 26. encoders, the temperature sensor of 27. bearing II, 28. rotor displacements
Sensor, 29. rotor displacement sensor stand .30. after sleeve displacement transducers, 31. guide fingers, 32. after sleeve vibrating sensings
Device, 33. front sleeve vibrating sensors, 34. first cooling water channels, 35 positioning end caps, 36. pretightning force regulating bolts, 37, locking screw
Mother, 38. piezoelectric actuators, 39. force snesors, 40. second locking nuts, 41. second cooling water channels.
Specific embodiment
Technical scheme is further illustrated with reference to specific embodiment.
Refer to Fig. 1 to Fig. 5, a kind of high speed and precision main shaft pretightning force experimental rig, before the two ends of pedestal 1 are respectively arranged with
Sleeve 4 and after sleeve 14, a roots rotor 2 is provided with front sleeve 4 and after sleeve 14 by bearing；
The front sleeve 4 is bolted and is fixed on the pedestal 1, and bearing I 24 and bearing are provided with front sleeve 4
II 25 to install rotor 2, by the first locking nut 23 by bearing I 24 and the axial locking of bearing II 25 on rotor 2；Front sleeve
4 two ends are separately installed with positioning end cap 35 and drive end bearing bracket 3, and the positioning end cap 35 is bolted and is fixed on front sleeve 4
The inner, the drive end bearing bracket 3 is threadedly secured to the outer end of front sleeve 4, for compressing bearing outer ring；The outer barrel of front sleeve 4
Its circumference is provided with the first cooling water channel 34 on wall；Front sleeve 4 is embedded in and is provided with the temperature sensor 22 of bearing I and bearing II
Temperature sensor 27, the probe of the temperature sensor 22 of the bearing I is located near bearing I 24, the work for detecting bearing I 24
Temperature, the probe of the temperature sensor 27 of the bearing II is located near bearing II 25, the operating temperature for detecting bearing II 25；
The interior also insertion of front sleeve 4 is provided with front sleeve vibrating sensor 33, and (front sleeve vibrating sensor 33 is embedding through positioning end cap 35
Enter into front sleeve 4), the vibration signal for detecting front sleeve 4, that is, radial vibration signal when detecting that rotor 2 rotates；
The after sleeve 14 is slidably arranged on pedestal 1 by guide finger 31, so that after sleeve 14 can be along the pedestal 1
Slide axially；Bearing III 20 and bearing IV 19 are provided with to install rotor 2 in after sleeve 14, by the second locking nut 40 by axle
Hold III 20 and the axial locking of bearing IV 19 on rotor 2；The outer end of after sleeve 14 is provided with rear end cap 17, for compressing outside bearing
Circle；Its circumference is provided with the second cooling water channel 41 on the outer tube wall of after sleeve 14；After sleeve 14 is embedded in and is provided with bearing
III temperature sensor 18 and the temperature sensor 16 of bearing IV, the probe of the temperature sensor 18 of the bearing III are attached positioned at bearing III 20
Closely, for detecting the operating temperature of bearing III 20, the probe of the temperature sensor 16 of the bearing IV is located near bearing IV 19, uses
In the operating temperature of detection bearing IV 19；Also insertion is provided with after sleeve vibrating sensor 32 in after sleeve 14, for detecting
The vibration signal of after sleeve 14, that is, radial vibration signal when detecting that rotor 2 rotates；After sleeve displacement is set in after sleeve 14
Sensor 30, the axial displacement for monitoring after sleeve；In the outer end of after sleeve 14, Positioning screw 15 is set, it is set pre- for switching
Level pressure pretension pattern and positioning pretension pattern under clamp force；
Piezoelectric actuator support 9 is provided with pedestal 1 between front sleeve 4 and after sleeve 14, on executor support 9
Three piezoelectric actuator 38 (piezoelectric actuatings for promote after sleeve 14 parallel with rotor are evenly distributed in along rotor 2
Three unthreaded holes for install the piezoelectric actuator 38 parallel with rotor, three piezoelectric actuatings are evenly equipped with device support
Device 38 is slidably arranged in three parallel unthreaded holes respectively), one end relative with after sleeve 14 of piezoelectric actuator 38 fixes strong
Sensor 39, the other end (i.e. one end relative with front sleeve 4 of piezoelectric actuator 38) of piezoelectric actuator 38 be embedded make
Pretightning force regulating bolt 36 on dynamic device support 9 is connected, and locking nut 37 is provided with pretightning force regulating bolt 36, by regulation
Pretightning force regulating bolt 36 promotes piezoelectric actuator 38 in unthreaded hole to the Slideslip of after sleeve 14 1, makes the end of piezoelectric actuator 38
Force snesor 39 contact after sleeve 14, load initial axial pre tightening force (because after sleeve 14 is slidably arranged in after sleeve 14
On pedestal 1, so after the stress of after sleeve 14, bearing, locking nut load axial pretightening to rotor 2 after after sleeve 14 drives successively
Power), and axial pre tightening force is further loaded to rotor by controlling the elongation of piezoelectric actuator 38, power is passed through in loading procedure
Sensor 39 measures the axial pre tightening force size to rotor；
The preceding coolant inlet pipe joint 6 that is connected with the first cooling water channel 34 of front sleeve 4 and preceding is provided with pedestal 1
Cooling liquid outlet pipe joint 8, and the rear coolant inlet pipe joint 11 being connected with the second cooling water channel 41 of after sleeve 14
With rear cooling liquid outlet pipe joint 13；The preceding coolant inlet pipe joint 6 is provided with for monitoring preceding coolant inlet temperature
Preceding coolant inlet temperature sensor 5, the preceding cooling liquid outlet pipe joint 8 is provided with for monitoring preceding cooling liquid outlet temperature
Preceding cooling liquid outlet temperature sensor 7, the rear coolant inlet pipe joint 11 is provided with for coolant inlet temperature after monitoring
Rear coolant inlet temperature sensor 10, the rear cooling liquid outlet pipe joint 13 is provided with for cooling liquid outlet temperature after monitoring
Cooling liquid outlet temperature sensor 12 after degree；
Rotor displacement sensor stand 29 is provided with pedestal 1, the rotor displacement sensor stand 29 is provided with rotor position
Displacement sensor 28, rotor displacement sensor 28 is used to monitor the axial displacement of rotor.
Encoder support 21 is provided with pedestal 1, the encoder support 21 is provided with encoder 26, and encoder 26 is used to supervise
Survey the rotating speed of rotor.
The application method of high speed and precision main shaft pretightning force experimental rig of the invention, comprises the following steps：
(1) lead to coolant and oil-air lubrication after the completion of experimental rig assembling, maximum speed according to rotor (i.e. main shaft) and
Cooling, lubricating condition set the initial pretightning force of rotor；Circulate three pretightning force regulating bolts of regulation successively by torque spanner
36, pretightning force regulating bolt promotes piezoelectric actuator 38 in unthreaded hole to the Slideslip of after sleeve 14 1, makes piezoelectric actuator end
Force snesor 39 to after sleeve 14 load axial pre tightening force, after after sleeve stress, after sleeve drive successively after bearing, locking screw
It is female that axial pre tightening force is loaded to rotor, three are made to the axial pre tightening force size of rotor by force sensor measuring in loading procedure
The show value of individual force snesor is equal and show value sum be equal to setting rotor initial pretightning force；
(2) under stationary rotor state, the loading further to rotor of three elongations of piezoelectric actuator of control is axially pre-
Clamp force, pretightning force, the pretension displacement of after sleeve and the pretension displacement of rotor are gathered by data collecting card respectively, under drawing static state
Pretightning force and the correlation of pretension displacement；
(3) drive rotor to rotate, the rotating speed of rotor is measured by encoder, the rotating speed according to rotor controls three pressures respectively
The elongation of motor-driven cylinder further loads axial pre tightening force to rotor, makes the show value of three force snesors equal and shows
Value sum is equal to the pretightning force of setting, while gathering pretightning force, the pretension displacement of after sleeve, rotor respectively by data collecting card
Pretension displacement, the temperature of bearing, the vibration of front sleeve and after sleeve；Rotating speed is stepped up until the maximum speed of rotor；
(4) under a certain rotating speed, can be by changing the temperature and flow velocity of rotor coolant so as to change or adjustment axis
The pretightning force held；
(5) rotating speed of rotor is gradually reduced after the completion of testing, and pretightning force is gradually reduced according to rotating speed, until returning to just
Beginning pretightning force.
In process of the test, under can realizing set pretightning force by after sleeve displacement transducer 30 and Positioning screw 15
Level pressure pretension pattern switching is positioning pretension pattern：
Promote force snesor to apply target axial pre tightening force to rotor first with piezoelectric actuator and (utilize three piezoelectric actuatings
Device promotes force snesor to apply desired pretightning force to rotor simultaneously, makes the show value of three force snesors equal and show value
Sum is equal to the expectation pretension force value to rotor of setting), then circulate regulation Positioning screw successively by torque spanner,
The axial pre tightening force of piezoelectric actuator applying is unloaded in circulation successively, the show value of three force snesors is gradually gone to zero, Ke Yishi
Level pressure pretension pattern switching under existing set pretightning force is positioning pretension pattern.
Exemplary description is done to the present invention above, it should explanation, do not departed from the situation of core of the invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent of creative work equal
Fall into protection scope of the present invention.
Claims (10)
1. a kind of high speed and precision main shaft pretightning force experimental rig, front sleeve (4) and rear enclosure are respectively arranged with the two ends of pedestal (1)
Cylinder (14), rotor (2) is arranged in front sleeve and after sleeve by bearing, it is characterised in that：
The front sleeve is fixed with pedestal, and the after sleeve is slidably arranged on pedestal by guide finger；
Piezoelectric actuator support (9) is provided with pedestal between front sleeve and after sleeve, along rotor on executor support
Multiple piezoelectric actuators (38) for promote after sleeve parallel with rotor are evenly distributed in, the piezoelectric actuator is slided
It is arranged in the unthreaded hole of piezoelectric actuator support, force sensor is fixed in one end relative with after sleeve of piezoelectric actuator
(39), the other end of piezoelectric actuator is connected with the pretightning force regulating bolt (36) being embedded on executor support；
Its circumference is provided with cooling water channel on the outer tube wall of front sleeve and after sleeve；
Insertion is provided with temperature sensor in front sleeve and after sleeve, the operating temperature for detecting bearing；
Insertion is provided with vibrating sensor in front sleeve and after sleeve, for detecting radial vibration letter when rotor rotates
Number；
After sleeve displacement transducer (30), the axial displacement for monitoring after sleeve are set in after sleeve；
The rotor displacement sensor (28) for monitoring rotor axial displacement is provided with pedestal；
The encoder (26) for monitoring rotor speed is provided with pedestal.
2. high speed and precision main shaft pretightning force experimental rig according to claim 1, it is characterised in that：The front sleeve passes through
Bolt connection is fixed on the pedestal, bearing I and bearing II is provided with front sleeve to install rotor, by the first locking screw
Mother is by bearing I and the axial locking of bearing II on rotor；The two ends of front sleeve are separately installed with positioning end cap (35) and drive end bearing bracket
(3), the positioning end cap is bolted the inner for being fixed on front sleeve, and the drive end bearing bracket is threadedly secured to front sleeve
Outer end, for compressing bearing outer ring.
3. high speed and precision main shaft pretightning force experimental rig according to claim 2, it is characterised in that：Front sleeve is embedded in and sets
The temperature sensor of bearing I (22) and the temperature sensor of bearing II (27) are equipped with, the probe of the temperature sensor of the bearing I is located at axle
Hold near I, the operating temperature for detecting bearing I, the probe of the temperature sensor of the bearing II is located near bearing II, is used for
Detect the operating temperature of bearing II.
4. high speed and precision main shaft pretightning force experimental rig according to claim 1, it is characterised in that：It is provided with after sleeve
Bearing III and bearing IV to install rotor, by the second locking nut by bearing III and the axial locking of bearing IV on rotor；Afterwards
The outer end of sleeve is provided with rear end cap (17), for compressing bearing outer ring.
5. high speed and precision main shaft pretightning force experimental rig according to claim 4, it is characterised in that：After sleeve is embedded in and sets
The temperature sensor of bearing III (18) and the temperature sensor of bearing IV (16) are equipped with, the probe of the temperature sensor of the bearing III is located at
Near bearing III, the operating temperature for detecting bearing III, the probe of the temperature sensor of the bearing IV is located near bearing IV,
Operating temperature for detecting bearing IV.
6. high speed and precision main shaft pretightning force experimental rig according to claim 1, it is characterised in that：The piezoelectric actuator
Three unthreaded holes for install the piezoelectric actuator parallel with rotor are evenly equipped with support, three piezoelectric actuators are slided respectively
It is dynamic to be arranged in three parallel unthreaded holes.
7. high speed and precision main shaft pretightning force experimental rig according to claim 1, it is characterised in that：Be provided with pedestal with
Preceding coolant inlet pipe joint (6) and preceding cooling liquid outlet pipe joint (8) that first cooling water channel (34) of front sleeve is connected,
And the rear coolant inlet pipe joint (11) that is connected with second cooling water channel (41) of after sleeve and rear coolant outlet
Joint (13)；The preceding coolant inlet pipe joint (6) is provided with the preceding coolant inlet for monitoring preceding coolant inlet temperature
Temperature sensor (5), the preceding cooling liquid outlet pipe joint (8) is provided with the preceding coolant for monitoring preceding cooling liquid outlet temperature
Outlet temperature sensor (7), the rear coolant inlet pipe joint (11) is provided with for after coolant inlet temperature after monitoring
Coolant inlet temperature sensor (10), the rear cooling liquid outlet pipe joint (13) is provided with for cooling liquid outlet temperature after monitoring
Cooling liquid outlet temperature sensor (12) after degree.
8. high speed and precision main shaft pretightning force experimental rig according to claim 1, it is characterised in that：Set in after sleeve outer end
Put multiple Positioning screws (15) parallel with rotor.
9. the application method of the high speed and precision main shaft pretightning force experimental rig as described in one of claim 1-8, it is characterised in that
Comprise the following steps：
(1) coolant and oil-air lubrication are led to after the completion of experimental rig assembling, maximum speed and cooling, lubricating condition according to rotor
Set the initial pretightning force of rotor；Circulate three pretightning force regulating bolts (36) of regulation successively by torque spanner, pretightning force is adjusted
Section bolt pusher piezoelectric actuator (38), to the Slideslip of after sleeve (14), senses the power of piezoelectric actuator end in unthreaded hole
Device (39) to after sleeve (14) load axial pre tightening force, after after sleeve stress, after sleeve drive successively after bearing, locking nut pair
Rotor loads axial pre tightening force, and three power are made to the axial pre tightening force size of rotor by force sensor measuring in loading procedure
The show value of sensor is equal and show value sum be equal to setting rotor initial pretightning force；
(2) under stationary rotor state, the elongation of three piezoelectric actuators is controlled further to load axial pre tightening force to rotor,
Gather pretightning force, the pretension displacement of after sleeve and the pretension displacement of rotor respectively by data collecting card, draw pretension under static state
Power and the correlation of pretension displacement；
(3) drive rotor to rotate, the rotating speed of rotor is measured by encoder, the rotating speed according to rotor controls three piezoelectricity to make respectively
The elongation of dynamic device further loads axial pre tightening force to rotor, make the show value of three force snesors equal and show value it
With equal to setting pretightning force, while gathered respectively by data collecting card pretightning force, the pretension displacement of after sleeve, rotor it is pre-
The vibration of tight displacement, the temperature of bearing, front sleeve and after sleeve；Rotating speed is stepped up until the maximum speed of rotor；
(4) under a certain rotating speed, by the pretension for changing the temperature and flow velocity of rotor coolant so as to change or adjust bearing
Power；
(5) rotating speed of rotor is gradually reduced after the completion of testing, and pretightning force is gradually reduced according to rotating speed, until returning to initial pre-
Clamp force.
10. the application method of high speed and precision main shaft pretightning force experimental rig according to claim 9, it is characterised in that：It is logical
Later sleeve displacement sensor (30) and Positioning screw (15) can realize positioning the free switching of pretension and level pressure pretension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976920.6A CN106908178B (en) | 2016-11-07 | 2016-11-07 | High-speed precision main shaft pretightening force test device and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976920.6A CN106908178B (en) | 2016-11-07 | 2016-11-07 | High-speed precision main shaft pretightening force test device and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106908178A true CN106908178A (en) | 2017-06-30 |
| CN106908178B CN106908178B (en) | 2022-12-02 |
Family
ID=59207299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610976920.6A Active CN106908178B (en) | 2016-11-07 | 2016-11-07 | High-speed precision main shaft pretightening force test device and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106908178B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362415A (en) * | 2018-01-08 | 2018-08-03 | 沈阳建筑大学 | A kind of main shaft bearing pretightning force control experimental provision based on piezoelectric ceramics |
| CN109932072A (en) * | 2019-03-27 | 2019-06-25 | 共享铸钢有限公司 | A kind of shakeout bearing temperature monitoring system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528560A (en) * | 2011-12-22 | 2012-07-04 | 西安交通大学 | Method for measuring static pre-tightening force of main shaft bearing of machine tool |
| CN102564763A (en) * | 2011-12-22 | 2012-07-11 | 西安交通大学 | Dynamic pre-tightening force measurement method of main shaft bearing of machine tool |
| WO2012174762A1 (en) * | 2011-06-20 | 2012-12-27 | 西安交通大学 | Non-uniform-distribution pretightening-force-controllable high-speed main shaft based on piezoelectric actuator and control method thereof |
| CN202648921U (en) * | 2012-04-27 | 2013-01-02 | 西安交通大学 | Main shaft preloading force dynamic adjustment experiment table based on piezoelectric actuators |
| CN102866006A (en) * | 2012-09-19 | 2013-01-09 | 西安交通大学 | Strong-generality comprehensive experiment table for testing dynamic and static properties of spindle system |
| CN206311258U (en) * | 2016-11-07 | 2017-07-07 | 天津大学 | High speed and precision main shaft pretightning force experimental rig |
-
2016
- 2016-11-07 CN CN201610976920.6A patent/CN106908178B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012174762A1 (en) * | 2011-06-20 | 2012-12-27 | 西安交通大学 | Non-uniform-distribution pretightening-force-controllable high-speed main shaft based on piezoelectric actuator and control method thereof |
| CN102528560A (en) * | 2011-12-22 | 2012-07-04 | 西安交通大学 | Method for measuring static pre-tightening force of main shaft bearing of machine tool |
| CN102564763A (en) * | 2011-12-22 | 2012-07-11 | 西安交通大学 | Dynamic pre-tightening force measurement method of main shaft bearing of machine tool |
| CN202648921U (en) * | 2012-04-27 | 2013-01-02 | 西安交通大学 | Main shaft preloading force dynamic adjustment experiment table based on piezoelectric actuators |
| CN102866006A (en) * | 2012-09-19 | 2013-01-09 | 西安交通大学 | Strong-generality comprehensive experiment table for testing dynamic and static properties of spindle system |
| CN206311258U (en) * | 2016-11-07 | 2017-07-07 | 天津大学 | High speed and precision main shaft pretightning force experimental rig |
Non-Patent Citations (1)
| Title |
|---|
| 张郊等: "轴承预紧力对陶瓷电主轴特性影响分析", 《组合机床与自动化加工技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362415A (en) * | 2018-01-08 | 2018-08-03 | 沈阳建筑大学 | A kind of main shaft bearing pretightning force control experimental provision based on piezoelectric ceramics |
| CN109932072A (en) * | 2019-03-27 | 2019-06-25 | 共享铸钢有限公司 | A kind of shakeout bearing temperature monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106908178B (en) | 2022-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206311258U (en) | High speed and precision main shaft pretightning force experimental rig | |
| CN106909177A (en) | High speed and precision axis system based on piezoelectric actuator on-line monitoring and control spindle bearing system pretightning force and pretension displacement | |
| CN106891202A (en) | A kind of high speed and precision main shaft pretightning force and pretension displacement intelligent monitor system and its control method | |
| CN101718625B (en) | High-temperature high-speed test method for sealed bearing and test device | |
| CN102866006B (en) | Strong-generality comprehensive experiment table for testing dynamic and static properties of spindle system | |
| CN112161803B (en) | Rolling bearing life-span energy consumption testing machine under combined load | |
| EP3835749B1 (en) | Integrated bearing seat capable of accurately detecting operating condition of bearing | |
| EP3015659B1 (en) | Gas turbine and method of determining the load on a gas turbine bearing apparatus | |
| CN106896834A (en) | A kind of high speed and precision main shaft pretightning force Based Intelligent Control testing stand based on piezoelectric actuator | |
| CN106670510B (en) | A kind of machine tool mainshaft bearing pretightning force automatic regulating system and method based on hydraulic control | |
| CN208366608U (en) | A kind of high-speed angular contact ball bearing temperature rise detection experimental rig | |
| CN110108488B (en) | Rolling bearing retainer slip research experiment system | |
| CN109323790A (en) | Rolling bearing no-load starting torque measuring device | |
| CN111896259B (en) | Ceramic roller bearing loading and testing system for low-temperature vacuum environment | |
| CN106908178A (en) | High speed and precision main shaft pretightning force experimental rig and its application method | |
| CN104236907A (en) | Rolling bearing friction moment and stiffness measuring device and method | |
| CN206305887U (en) | A kind of high speed and precision main shaft pretightning force and pretension displacement intelligent monitor system | |
| CN208721298U (en) | Rolling bearing no-load starting torque measuring device | |
| CN104551530A (en) | Combined cam shaft assembling method and device | |
| CN110332231B (en) | Bearing group capable of actively adjusting temperature and pretightening force | |
| CN110726495B (en) | System and method for testing temperature field of main bearing of shield | |
| CN108332969A (en) | A kind of electro spindle comprehensive performance testing system | |
| CN103645046A (en) | Method and device for detecting performance test of central rotary joint | |
| CN206311979U (en) | A kind of high speed and precision main shaft pretightning force Based Intelligent Control testing stand based on piezoelectric actuator | |
| CN104006968A (en) | Device and method for simulating crankshaft service state under radial impact load |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |