CN107300469A - Taper roll bearing dynamic friction torque feature measurement machine - Google Patents

Taper roll bearing dynamic friction torque feature measurement machine Download PDF

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Publication number
CN107300469A
CN107300469A CN201710646074.6A CN201710646074A CN107300469A CN 107300469 A CN107300469 A CN 107300469A CN 201710646074 A CN201710646074 A CN 201710646074A CN 107300469 A CN107300469 A CN 107300469A
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CN
China
Prior art keywords
bearing
live spindle
loading
load
groove
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Granted
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CN201710646074.6A
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Chinese (zh)
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CN107300469B (en
Inventor
经营亮
郭长建
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Shanghai C&U Group Co Ltd
C&U Co Ltd
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C&U Group Ltd
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Priority to CN201710646074.6A priority Critical patent/CN107300469B/en
Publication of CN107300469A publication Critical patent/CN107300469A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/04Bearings
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0061Force sensors associated with industrial machines or actuators

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The present invention relates to a kind of taper roll bearing dynamic friction torque feature measurement machine, including frame, axial loading device and rotary main shaft device, between the loading axis loading end of axial loading device and the live spindle drive end of rotary main shaft device coaxial and relatively turnable connection is constituted through taper roll bearing to be measured, live spindle is provided with non-contact flange torque sensor, rotor axial one end of non-contact flange torque sensor is fixedly and coaxially connected and with live spindle synchronous axial system with live spindle, the rotor axial other end of non-contact flange torque sensor is fixedly and coaxially connected bearing mounting base to be measured, the stator of non-contact flange torque sensor is matched with the side of rotor accordingly.In such scheme, the shafting of taper roll bearing and torque sensor composition to be measured, only one of which rotary part, so as to avoid producing corresponding additional moment, improves the accuracy of testing result;Moment of friction detection in the case of the axial load of achievable consecutive variations in addition.

Description

Taper roll bearing dynamic friction torque feature measurement machine
Technical field
It is specifically the measurement for detecting the moment of friction of taper roll bearing the present invention relates to Bearing testing equipment Equipment.
Background technology
Taper roll bearing belongs to divergence type bearing, and the inside and outside circle of bearing is respectively provided with tapered raceway.Taper roll bearing rubs Wipe the moment of friction that torque includes needing to overcome during the Internal and external cycle relative rotation of bearing(Dynamic friction torque)And bearing internal external circle The maximum friction torque overcome needed for the static moment relatively rotated to(Start moment of friction).With the hair of technology Exhibition, the requirement more and more higher to taper roll bearing, the moment of friction of taper roll bearing affects the noise of equipment, energy and damaged Mistake, working life etc..
At present, the moment of friction assay device structures design for taper roll bearing is unreasonable, causes testing result not Accurately.
The content of the invention
Objects of the present invention:To overcome the defect that prior art is present, the present invention provides a kind of reasonable in design, inspection Survey accurately and reliably taper roll bearing dynamic friction torque feature measurement machine.
To achieve the above object, the invention provides following technical scheme:
A kind of taper roll bearing dynamic friction torque feature measurement machine, including frame, the axial loading device in frame And rotary main shaft device, axial loading device include loading axis and load maintainer, rotary main shaft device include live spindle, master E axle supporting mechanism and motor, the drive end of live spindle, which is provided with the bearing to be measured coordinated with taper roll bearing to be measured, pacifies Seat is filled, constitutes coaxial through taper roll bearing to be measured between the loading end of loading axis and the drive end of live spindle and relative can turn Dynamic connection, it is characterised in that:Described live spindle is provided with non-contact flange torque sensor, and non-contact flange is turned round Rotor axial one end of square sensor is fixedly and coaxially connected and with live spindle synchronous axial system, non-contact flange with live spindle The rotor axial other end of torque sensor is fixedly and coaxially connected the bearing mounting base to be measured, non-contact flange torque sensing The stator of device is matched with the side of rotor accordingly.
By using above-mentioned technical proposal, coordinated using non-contact flange torque sensor and live spindle, noncontact Rotor one end of flange type torque sensor and live spindle connection synchronous axial system, the bearing assembly companion to be measured of other end connection The rotor of non-contact flange torque sensor rotates together;The shafting of taper roll bearing and torque sensor composition to be measured In, only one of which rotary part, so as to avoid producing corresponding additional moment, improves the accuracy of testing result;In addition can be real Moment of friction detection under existing axially different load condition, accordingly when cancelling axial load, can also realize circular cone rolling to be measured The measurement of sub- bearing staring torque.
It is preferred that, described main shaft supporting mechanism includes live spindle seat, the first bearing support and the second bearing assembly, rotation Turn on main shaft close to power input the bearing support of one end first be supported on live spindle seat on, the second bearing assembly include be used for The second supporting member of live spindle is supported, the supporting member is located at turn of the first bearing support and non-contact flange torque sensor Between son, supporting member is located at live spindle close to one end for being connected with the rotor of non-contact flange torque sensor, and described the Coordinate between two supporting members and live spindle into the disengaging type that can support, depart from, the second supporting member be combined with its supporting of driving and Depart from the clutch operating mechanism of live spindle.Under the structure design, live spindle is carried out when required by the second supporting member , it is necessary to start live spindle before supporting, such as moment of friction detection, the second supporting member is supported steady to ensure to live spindle Fixed startup and work, afterwards, withdraws the second supporting member, live spindle, it is ensured that live spindle slow-roll stabilization is reliable.
It is preferred that, second supporting member is axially moveable the second bearing support being arranged on live spindle seat, the The inner ring hole of two bearing supports is big end down taper type hole, and live spindle is provided with what is be adapted with taper type hole vertically Conical bearing portion, clutch operating mechanism drives the second bearing support to move axially so that the supporting of taper type hole and disengaging live spindle Conical bearing portion on.Under the structure design, the second supporting member is design bearing, and with taper fit, with simple in construction, is matched somebody with somebody Close reliable and stable advantage.
It is preferred that, the live spindle seat is provided with release bearing seat ring, and the outer ring of the second bearing support is fixedly mounted on On release bearing seat ring, the axial sliding fit of release bearing seat ring is on live spindle seat, the axial correspondence the of release bearing seat ring Taper type hole bearing engagement of the one end of the taper type hole small end of two bearing supports provided with the second bearing support of driving is in taper branch Back-moving spring in bearing portion, the big end in the drive end of clutch operating mechanism taper type hole corresponding with the inner ring of the second bearing support One end pushing tow coordinate.Under the structure design, release bearing seat ring is installed to the formation of the second bearing support, the second bearing support peace Dress is reliable and having stable behavior is reliable, and the second bearing support resets by spring formation and live spindle is supported, it is ensured that Supporting is reliable;In addition, clutch operation mechanism carries out pushing tow to the inner ring of release bearing seat ring reaches disengaging, it is reliable with departing from, At the outer ring of the bearing support of back-moving spring pushing tow second, with reasonable structural arrangement.
It is preferred that, the clutch end of the load maintainer is connected and acted synergistically with the operating side of clutch operating mechanism, The synergy is when load maintainer drive load axle applies rated load and above load capacity to taper roll bearing to be measured The second bearing support is driven to depart from live spindle through clutch operation mechanism.Under the structure design, using same power output, structure It is compact, and reach reliable synergy, reliable operation.
It is preferred that, the clutch operating mechanism includes bearing separation driving slide, bearing separation driving lever and pushing tow sliding sleeve, Pushing tow sliding sleeve, which is slided up and down, to be matched with live spindle seat, the inner ring lower axial end portion pushing tow of pushing tow sliding sleeve and the second bearing support Coordinate, pushing tow sliding sleeve is combined with the disengaging yoke of driving pushing tow sliding sleeve axial movement, disengaging yoke is into turning for can vertically swinging Dynamic to be arranged in frame, disengaging yoke includes shift fork arm and actuating arm, and shift fork arm and actuating arm are divided into disengaging yoke rotation Fulcrum both sides, shift fork arm and the pushing tow sliding sleeve of disengaging yoke are connected, and the actuating arm of disengaging yoke is provided with linkage groove, linkage Groove includes extending along upper groove body and lower groove that direction is sequentially distributed, and upper groove body and lower groove, which vertically misplace, to be arranged and transition Connection, bearing separation driving lever is vertically extending to be arranged and is installed in frame, and bearing separation driving lever lower end is led provided with sliding To the lower linkage head being matched with linkage groove, bearing separates actuating arm of the driving lever through lower linkage head and disengaging yoke and is connected, Bearing separation driving slide drives lifting activity through load maintainer, and bearing separation driving slide is provided with the driving lever extended up and down and driven Dynamic guide groove, driving lever driving guide groove includes the first groove and the second groove being sequentially arranged above and below, the first groove and the second groove edge correspondence Bearing separation driving lever swaying direction is matched with provided with sliding guiding and dialled in dislocation arrangement and transition connection, bearing separation driving lever upper end Upper linkage head in bar driving guide groove, bearing separation driving lever separates driving slide with bearing through upper linkage head and is connected.It is above-mentioned Under technical scheme, clutch operating mechanism operation principle is that load maintainer is when drive load axle is loaded, and load maintainer drives simultaneously Bearing separation driving slide lifting activity, the upper linkage head of bearing separation driving lever is oppositely oriented sliding in driving lever driving guide groove, Driving lever driving guide groove include correspondence bearing separation driving lever swaying direction dislocation arrangement in the first groove and the second groove, so in bearing The upper linkage head for separating driving lever realizes that driving bearing separation driving lever is swung when the first groove and the second groove switch, bearing separation driving lever Under wobbling action, it is lower linkage head linkage groove in be oriented to sliding, it is lower linkage head in upper groove body and lower groove handoff procedure, due to Dislocation arrangement and transition connection above and below upper groove body and lower groove, under lower linkage head effect, the wobble drive point of bearing separation driving lever Swung from shift fork, and then disengaging yoke stirs pushing tow sliding sleeve lifting carriage, so as to be carried out through pushing tow sliding sleeve to the second bearing support Axial pushing tow and the reset under the spring force of back-moving spring;With compact conformation, the advantage of debugging and reliable operation is easily installed.
It is preferred that, the load maintainer includes loading motor, loading lead screw pair and load sliding block, and loading lead screw pair includes The loading leading screw and loading nut of mutual cooperation, the motor shaft of the loading motor are connected with loading lead screw transmission, load nut It is fixedly installed on load sliding block, load sliding block positioned-lifting is snug fit in frame, buffering is installed on load sliding block and added Cylinder is carried, buffering loading cylinder includes being installed with load guide shaft, institute on the stator bore being fixed on load sliding block, stator bore State the loading axis guiding that slides axially to be matched with stator bore, be provided with guide shaft hole and disc spring chamber in loading axis vertically, load is led Axle passes through disc spring chamber relative to guide shaft hole, load guide shaft is snug fit at, and disc spring chamber lower end has support bottom wall, disc spring chamber upper end Mouth is provided with spacing end cap, and load guide shaft is provided with the annular flange positioned at disc spring intracavitary, and disc spring intracavitary is provided with and folded by some disc spring pieces Into buffering disc spring post, buffering disc spring post one end is connected in the annular flange of load guide shaft, and the buffering disc spring post other end is abutted In disc spring bottom of chamber portion, the annular flange of load guide shaft with buffering disc spring post relative to abutting the other end of one end and spacing end cap stops Gear is spacing to be coordinated.Under the structure design, loading motor drive load leading screw is rotated and drive load nut is with band dynamic loading sliding block Lifting, stator bore and load guide shaft are with load sliding block synchronization lifting, in loading, the annular flange compression buffering of load guide shaft Disc spring post, buffered disc spring post promotes loading axis to implement loading, and buffering disc spring post replaces buffering during loading, it is ensured that loading is stable Reliably;During unloading, in the presence of buffering disc spring post, stable unloading is realized;Guide shaft and stator bore ensure the peace of loading axis Dress and activity are reliable and stable, it is ensured that loading is reliable, and provided with buffering disc spring post, compact overall structure in loading axis.
The invention will be further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is specific embodiment of the invention taper roll bearing dynamic friction torque feature measurement machine structural representation one;
Fig. 2 is specific embodiment of the invention taper roll bearing dynamic friction torque feature measurement machine structural representation two;
Fig. 3 is specific embodiment of the invention top view;
Fig. 4 is the sectional view of the line A-A cutting along along Fig. 3;
Fig. 5 is the sectional view of the line B-B cutting along along Fig. 3;
Fig. 6 is C portion partial enlarged view in Fig. 4;
Fig. 7 is specific embodiment of the invention clutch operating mechanism structural representation.
Embodiment
Referring to accompanying drawing 1 to 7, a kind of taper roll bearing dynamic friction torque feature measurement machine disclosed by the invention, including Frame 1, axial loading device 2 and rotary main shaft device 3 in frame 1, axial loading device 2 include loading axis 21 and Load maintainer 22, the load output end of loading axis 21 is provided with loading head 211, and loading head 211 and taper roll bearing to be measured 9 connect Connect, rotary main shaft device 3 includes live spindle 31, main shaft supporting mechanism and motor 32, the driving rotation of motor 32 Main shaft 31 is rotated, and the running part of motor 32 and live spindle 31 can be that transmission belt and belt wheel coordinate, or reducing gear Wheel set etc., it is this area routine techniques, therefore be will not enumerate, and the drive end of live spindle 31 is provided with to be rolled with circular cone to be measured The bearing mounting base to be measured 311 that sub- bearing 9 coordinates, through to be measured between the loading end of loading axis 21 and the drive end of live spindle 31 Taper roll bearing 9 constitutes coaxial and relatively turnable connection, and described live spindle 31 is turned round provided with non-contact flange Square sensor 4, axial one end of rotor 41 of non-contact flange torque sensor 4 be fixedly and coaxially connected with live spindle 31 and with In the synchronous axial system of live spindle 31, this specific embodiment, the rotor 41 and live spindle 31 of non-contact flange torque sensor 4 Between be attached through adpting flange 312, the axial other end of the rotor of non-contact flange torque sensor 4 41 is coaxially fixed to be connected Connect the bearing mounting base to be measured 311, the corresponding side for being matched with rotor 41 of stator 42 of non-contact flange torque sensor 4 Side.Detection in this specific embodiment is used, and the outer ring of taper roll bearing to be measured is axially loaded, i.e. loading head and circular cone to be measured The outer ring of roller bearing coordinates, and bearing mounting base to be measured is fixedly mounted for the inner ring of taper roll bearing to be measured.Using noncontact Flange type torque sensor and live spindle coordinate, rotor one end of non-contact flange torque sensor and live spindle connection Synchronous axial system, the bearing assembly to be measured of other end connection rotates together in company with the rotor of non-contact flange torque sensor;Treat In the shafting for surveying taper roll bearing and torque sensor composition, only one of which rotary part, so as to avoid generation corresponding attached Square is reinforced, the accuracy of testing result is improved;The moment of friction detection under axially different load condition can be achieved in addition, accordingly When cancelling axial load, the measurement of taper roll bearing staring torque to be measured can be also realized.Loading head can be lifted with loading axis With with taper roll bearing clutch to be measured.In order to preferably realize that taper roll bearing to be measured is installed and without axial load condition It is lower to carry out starting moment of friction detection.
This specific embodiment is further, and described main shaft supporting mechanism includes live spindle the 33, first bearing support of seat 34 and second bearing assembly 35, the first bearing support of one end 34, which is inputted, close to power in live spindle 31 is supported on live spindle On seat 33, the second bearing assembly 35 includes the second supporting member 351 for being used to support live spindle 34, second supporting member 351 Between the first bearing support 34 and the rotor 41 of non-contact flange torque sensor 4, the second supporting member 351, which is located at rotation, to be led Axle 33 is led close to the one end being connected with the rotor 41 of non-contact flange torque sensor 4, second supporting member 351 with rotation Coordinate between axle 33 into the disengaging type that can be supported, depart from, the second supporting member 351 is combined with its supporting of driving and departs from live spindle 31 clutch operating mechanism 36.Live spindle is supported when required by the second supporting member, such as moment of friction detects it It is preceding that, it is necessary to start live spindle, the second supporting member is supported to live spindle to ensure stable startup and work, afterwards, Withdraw the second supporting member, live spindle, it is ensured that live spindle slow-roll stabilization is reliable.
Second supporting member 351 is axially moveable the second bearing support 351 being arranged on live spindle seat, second The inner ring hole of bearing support 351 is big end down taper type hole 3511, and live spindle 31 is provided with and taper type hole vertically The 3511 conical bearing portions 313 being adapted, clutch operating mechanism drives the second bearing support 351 to move axially so that taper type hole In the conical bearing portion 313 of 3511 supportings and disengaging live spindle 31.The rolling bearing that is formed as in taper type hole matches somebody with somebody interior ring support, rolling Dynamic bearing inner ring is fixed on interior ring support, and the endoporus of interior ring support uses taper type hole;Certainly also can be straight using rolling bearing inner ring It is integral type structure to connect and process taper type hole, i.e. rolling bearing inner ring and interior ring support.Under the structure design, the second supporting member is Design bearing, and with taper fit, with simple in construction, coordinate reliable and stable advantage.Certainly it is used as the main shaft shape to rotation Into the scheme of supporting, it can also use radially activity to realize the supporting member of clutch action, thimble such as circumferentially, or Arc ring, to ensure that in rolling friction, live spindle rolling bearing etc. can be fixed.
Further, the live spindle seat 33 is provided with release bearing seat ring 352, the outer ring of the second bearing support 351 It is fixedly mounted on release bearing seat ring 352, the axial sliding fit of release bearing seat ring 352 is separated on live spindle seat 33 One end of the small end of taper type hole 3511 of the axial direction of bearing race 352 the second bearing support 351 of correspondence is provided with the second support shaft of driving 351 bearing engagement of taper type hole 3511 is held in the back-moving spring 353 in conical bearing portion 313, on release bearing seat ring 352 Provided with multiple back-moving springs 353 are circumferentially placed with, certain back-moving spring also can be using a big spring design;The clutch behaviour One end pushing tow that the drive end of motivation structure taper type hole 3511 corresponding with the inner ring of the second bearing support 351 is held greatly coordinates.Separation Bearing race is installed to the formation of the second bearing support, and the second bearing support installs reliable and having stable behavior reliably, the second supporting Bearing resets by spring formation and live spindle is supported, it is ensured that supporting is reliable;In addition, clutch operation mechanism is to separation The inner ring of bearing race carries out pushing tow and reaches disengaging, reliable with departing from, at the outer ring of the bearing support of back-moving spring pushing tow second, With reasonable structural arrangement.To cause release bearing seat ring reliable in action, provided with bearing pin is oriented on release bearing seat ring, it is oriented to Bearing pin is fixed on live spindle seat, and release bearing seat ring is provided with being oriented to the guide hole that bearing pin slide-and-guide coordinates.
To cause the driving of axially loaded and live spindle to realize collaboration, the clutch end of the load maintainer 22 with from The operating side for closing operating mechanism 36 connects and acted synergistically, and the synergy is to be measured in the drive load axle 21 of load maintainer 22 Taper roll bearing 9 drives the second bearing support 351 to take off when applying rated load and above load capacity through clutch operation mechanism 36 From live spindle 31.Using same power output, compact conformation, and realize when detection needs, it is axially loaded to needed for detecting After load, it is ensured that the second bearing support disengages live spindle, it is ensured that detection is reliable.
The clutch operating mechanism 36 includes bearing separation driving slide 361, bearing separation driving lever 362 and pushing tow sliding sleeve 363, pushing tow sliding sleeve 363, which is slided up and down, to be matched with live spindle seat 33, and pushing tow sliding sleeve 363 is interior with the second bearing support 351 Enclose lower axial end portion pushing tow to coordinate, pushing tow sliding sleeve 363 is combined with the disengaging yoke 364 of the axial movement of driving pushing tow sliding sleeve 363, point It is rotatably arranged on from shift fork 364 into what can vertically be swung in frame 1, disengaging yoke 364 includes shift fork arm 3641 and driving Arm 3642, shift fork arm 3641 and actuating arm 3642 are divided into the rotating fulcrum both sides of disengaging yoke 364, the shift fork of disengaging yoke 364 Arm 3641 is connected with pushing tow sliding sleeve 363, and neck 3631, group of disengaging yoke 364 are provided with the side wall of pushing tow sliding sleeve 363 Yoke 3641 is provided with roller 3643, the roller 3643 be stuck in neck 3631 and can in neck 3631 scrolling realization from shift fork 364 shift fork arm 3641 is connected with pushing tow sliding sleeve 363, and disengaging yoke 364 is when swinging, and roller 3643 is in neck 3631 Roll and realize driving linkage, the actuating arm 3642 of disengaging yoke 364 is provided with linkage groove 3644, and linkage groove 3644 is included along it Upper groove body 3644-1 and lower groove 3644-2 that bearing of trend is sequentially distributed, upper groove body 3644-1 and lower groove 3644-2 are vertically Dislocation arrangement and transition connection, upper groove body 3644-1 and lower groove 3644-2 stroke and deviation post equidimension art technology Personnel can voluntarily carry out selection processing according to actual conditions, and bearing separation driving lever 362 is vertically extending to be arranged and be installed in In frame 1, bearing separation driving lever 362 lower end is oriented to the lower linkage first 3621 being matched with linkage groove 3644, bearing provided with sliding Separation driving lever 362 is connected through lower linkage first 3621 and the actuating arm 3642 of disengaging yoke 364, bearing separation driving slide 361 drive lifting activity through load maintainer 22, and bearing separation driving slide 361 is provided with the driving lever driving guide groove extended up and down 3611, driving lever driving guide groove 3611 includes the first groove 3611-1 and the second groove 3611-2 being sequentially arranged above and below, the first groove 3611-1 and the second groove 3611-2 separates the swaying direction of driving lever 362 along correspondence bearing and connected in dislocation arrangement and transition, the first groove 3611-1 and the second groove 3611-2 stroke and deviation post equidimension those skilled in the art can be from travelings according to actual conditions Row selection processing, bearing separation driving lever 362 upper end is oriented to the upper linkage head being matched with driving lever driving guide groove 3611 provided with sliding 3622, bearing separation driving lever 362 separates driving slide 361 with bearing through upper linkage first 3622 and is connected.Wherein upper linkage head 3621 and lower linkage first 3622 set using installing roller structure on fixed pin shaft.Under above-mentioned technical proposal, clutch actuating machine Structure operation principle is that load maintainer is when drive load axle is loaded, the load maintainer driving slide lifting of driving bearing separation simultaneously Activity, the upper linkage head of bearing separation driving lever is oppositely oriented sliding in driving lever driving guide groove, and driving lever driving guide groove includes correspondence Bearing separation driving lever swaying direction dislocation arrangement in the first groove and the second groove, the upper linkage head for so separating driving lever in bearing exists Realize that driving bearing separation driving lever is swung when the first groove and the switching of the second groove, under bearing separation driving lever wobbling action, lower linkage head Sliding is oriented in linkage groove, lower linkage head is in upper groove body and lower groove handoff procedure, above and below upper groove body and lower groove Dislocation arrangement and transition connection, under lower linkage head effect, the wobble drive disengaging yoke of bearing separation driving lever is swung, and then separation Shift fork stirs pushing tow sliding sleeve lifting carriage, so as to carry out axial pushing tow to the second bearing support and in back-moving spring through pushing tow sliding sleeve Spring force under reset;With compact conformation, the advantage of debugging and reliable operation is easily installed.
In addition, the load maintainer 22 includes loading motor 221, loading lead screw pair and load sliding block 222, leading screw is loaded Pair includes the loading leading screw 223 cooperated and loading nut 224, motor shaft and the loading leading screw 223 of the loading motor 221 Drive connection, loading nut 224 is fixedly installed on load sliding block 222, and the positioned-lifting of load sliding block 222 is snug fit at frame On 1, load sliding block 222 is matched with frame 1 through two guide pillar slide-and-guides, and buffering loading cylinder is provided with load sliding block 222, Buffering loading cylinder includes the stator bore 225 being fixed on load sliding block 222(It can use fixing assembling after parts processing, Global formation can be used), it is installed with load guide shaft 226 on stator bore 225, the loading axis 21 guiding that slides axially is matched somebody with somebody Together in stator bore 225, be provided with guide shaft hole 212 and disc spring chamber 213 in loading axis 21 vertically, load guide shaft 226 relative to Guide shaft hole 212 is snug fit at, load guide shaft 212 passes through disc spring chamber 213, and the lower end of disc spring chamber 213 has support bottom wall, disc spring chamber 213 upper ports are provided with spacing end cap 2131, and load guide shaft 226 is provided with the annular flange 2261 being located in disc spring chamber 213, disc spring chamber Provided with the buffering disc spring post 227 built up by some disc spring pieces in 213, the one end of buffering disc spring post 227 is connected to load guide shaft 226 In annular flange 2261, the other end of buffering disc spring post 227 is connected to the bottom of disc spring chamber 213, the annular flange of load guide shaft 226 2261 relative to the other end and the spacing cooperation of the spacing backstop of end cap 2131 that one end is abutted with buffering disc spring post 227.Loading motor Drive load leading screw is rotated and drive load nut is lifted with band dynamic loading sliding block, and stator bore and load guide shaft are with load sliding block Synchronization lifting, in loading, the annular flange compression buffering disc spring post of load guide shaft, buffered disc spring post promotes loading axis to implement Loading, buffering disc spring post replaces buffering during loading, it is ensured that loading is reliable and stable;During unloading, in the presence of buffering disc spring post, Realize stable unloading;Guide shaft and stator bore ensure that the installation and activity of loading axis are reliable and stable, it is ensured that loading is reliable, and Provided with buffering disc spring post, compact overall structure in loading axis.

Claims (7)

1. a kind of taper roll bearing dynamic friction torque feature measurement machine, including frame, the axially loaded dress in frame Put and rotary main shaft device, axial loading device include loading axis and load maintainer, rotary main shaft device include live spindle, Main shaft supporting mechanism and motor, the drive end of live spindle are provided with the bearing to be measured coordinated with taper roll bearing to be measured Mounting seat, is constituted through taper roll bearing to be measured coaxial and can be relative between the loading end of loading axis and the drive end of live spindle The connection of rotation, it is characterised in that:Described live spindle is provided with non-contact flange torque sensor, non-contact flange Rotor axial one end of torque sensor is fixedly and coaxially connected and with live spindle synchronous axial system, noncontact flange with live spindle The rotor axial other end of formula torque sensor is fixedly and coaxially connected the bearing mounting base to be measured, and non-contact flange moment of torsion is passed The stator of sensor is matched with the side of rotor accordingly.
2. taper roll bearing dynamic friction torque feature measurement machine according to claim 1, it is characterised in that:Described master E axle supporting mechanism is included in live spindle seat, the first bearing support and the second bearing assembly, live spindle close to power input one End is supported on live spindle seat through the first bearing support, and the second bearing assembly includes being used for the second supporting for supporting live spindle Part, the supporting member is located between the first bearing support and the rotor of non-contact flange torque sensor, and supporting member is located at rotation Main shaft is close to the one end being connected with the rotor of non-contact flange torque sensor, between second supporting member and live spindle Coordinate into the disengaging type that can be supported, depart from, the second supporting member is combined with its supporting of driving and departs from the clutch actuating of live spindle Mechanism.
3. taper roll bearing dynamic friction torque feature measurement machine according to claim 2, it is characterised in that:Described second Supporting member is axially moveable the second bearing support being arranged on live spindle seat, and the inner ring hole of the second bearing support is upper Small, lower big taper type hole, live spindle is vertically provided with the conical bearing portion being adapted with taper type hole, clutch operating mechanism The second bearing support is driven to move axially so that in the conical bearing portion of the supporting of taper type hole and disengaging live spindle.
4. taper roll bearing dynamic friction torque feature measurement machine according to claim 3, it is characterised in that:The rotation Spindle drum is provided with release bearing seat ring, and the outer ring of the second bearing support is fixedly mounted on release bearing seat ring, release bearing Seat ring axial sliding fit is on live spindle seat, and release bearing seat ring axially corresponds to the taper type hole small end of the second bearing support One end provided with driving the second bearing support taper type hole bearing engagement in the back-moving spring in conical bearing portion, the clutch One end pushing tow at the drive end of the operating mechanism big end in taper type hole corresponding with the inner ring of the second bearing support coordinates.
5. taper roll bearing dynamic friction torque feature measurement machine according to claim 4, it is characterised in that:The loading The clutch end of mechanism is connected and acted synergistically with the operating side of clutch operating mechanism, and the synergy is to be driven in load maintainer Dynamic loading axis drives second when applying rated load and above load capacity to taper roll bearing to be measured through clutch operation mechanism Hold bearing and depart from live spindle.
6. taper roll bearing dynamic friction torque feature measurement machine according to claim 5, it is characterised in that:The clutch Operating mechanism includes bearing separation driving slide, bearing separation driving lever and pushing tow sliding sleeve, and pushing tow sliding sleeve, which is slided up and down, to be matched with On live spindle seat, the inner ring lower axial end portion pushing tow of pushing tow sliding sleeve and the second bearing support coordinates, and pushing tow sliding sleeve is combined with drive The disengaging yoke of dynamic pushing tow sliding sleeve axial movement, disengaging yoke is rotatably arranged in frame into what can vertically be swung, and separation is dialled Fork includes shift fork arm and actuating arm, and shift fork arm and actuating arm are divided into disengaging yoke rotating fulcrum both sides, group of disengaging yoke Yoke is connected with pushing tow sliding sleeve, the actuating arm of disengaging yoke provided with linkage groove, linkage groove include extending along direction according to The upper groove body and lower groove of secondary distribution, upper groove body and lower groove, which vertically misplace, to be arranged and transition connection, bearing separation driving lever edge Above-below direction is disposed to extend and is installed in frame, under bearing separation driving lever lower end is matched with linkage groove provided with sliding guiding Link head, and actuating arm of the bearing separation driving lever through lower linkage head and disengaging yoke is connected, and bearing separation driving slide is through adding Mounted mechanism drives lifting activity, and bearing separation driving slide is provided with the driving lever driving guide groove extended up and down, driving lever driving guide groove Including the first groove and the second groove being sequentially arranged above and below, the first groove and the second groove separate driving lever swaying direction along correspondence bearing In dislocation arrangement and transition connection, bearing separation driving lever upper end is oriented to the upper linkage being matched with driving lever driving guide groove provided with sliding Head, bearing separation driving lever separates driving slide with bearing through upper linkage head and is connected.
7. the taper roll bearing dynamic friction torque feature measurement machine according to claim 1 or 2 or 3 or 4 or 5 or 6, it is special Levy and be:The load maintainer includes loading motor, loading lead screw pair and load sliding block, and loading lead screw pair includes cooperating Loading leading screw and loading nut, the motor shaft of the loading motor be connected with loading lead screw transmission, loads nut fixed installation In on load sliding block, load sliding block positioned-lifting is snug fit in frame, and buffering loading cylinder, buffering are provided with load sliding block Loading cylinder includes being installed with load guide shaft, the loading axis on the stator bore being fixed on load sliding block, stator bore The guiding that slides axially is matched with stator bore, in loading axis vertically be provided with guide shaft hole and disc spring chamber, load guide shaft relative to Guide shaft hole is snug fit at, load guide shaft passes through disc spring chamber, and disc spring chamber lower end has support bottom wall, and disc spring chamber upper port is provided with limit Position end cap, load guide shaft is provided with the annular flange positioned at disc spring intracavitary, and disc spring intracavitary is provided with the buffering built up by some disc spring pieces Disc spring post, buffering disc spring post one end is connected in the annular flange of load guide shaft, and the buffering disc spring post other end is connected to disc spring chamber Bottom, the annular flange of load guide shaft is relative to abutting the other end of one end with buffering disc spring post and spacing end cap backstop is spacing matches somebody with somebody Close.
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CN109612616A (en) * 2018-12-30 2019-04-12 洛阳轴承研究所有限公司 A kind of measurement of friction torque device of angular contact radial bearing
PL428680A1 (en) * 2019-01-25 2019-08-26 Politechnika Świętokrzyska Device for testing anti-torques of cone bearings with the measuring sensor positioning mechanism
CN110307980A (en) * 2019-08-21 2019-10-08 中车株洲电机有限公司 A kind of traction electric machine is axial to quantify loading device and its operating method
CN111366068A (en) * 2020-03-18 2020-07-03 上海航天控制技术研究所 Method and device for measuring preload associated parameters of bearing assembly
CN111595581A (en) * 2020-05-17 2020-08-28 浙江来福谐波传动股份有限公司 Dynamic torque testing method of special crossed roller bearing for harmonic reducer
CN111623984A (en) * 2020-05-17 2020-09-04 浙江来福谐波传动股份有限公司 Dynamic torque testing machine of crossed roller bearing for harmonic reducer
CN113049154A (en) * 2021-03-10 2021-06-29 上海交通大学 Space momentum wheel bearing friction torque testing machine and testing method thereof

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Publication number Priority date Publication date Assignee Title
CN109612616A (en) * 2018-12-30 2019-04-12 洛阳轴承研究所有限公司 A kind of measurement of friction torque device of angular contact radial bearing
PL428680A1 (en) * 2019-01-25 2019-08-26 Politechnika Świętokrzyska Device for testing anti-torques of cone bearings with the measuring sensor positioning mechanism
CN110307980A (en) * 2019-08-21 2019-10-08 中车株洲电机有限公司 A kind of traction electric machine is axial to quantify loading device and its operating method
CN111366068A (en) * 2020-03-18 2020-07-03 上海航天控制技术研究所 Method and device for measuring preload associated parameters of bearing assembly
CN111595581A (en) * 2020-05-17 2020-08-28 浙江来福谐波传动股份有限公司 Dynamic torque testing method of special crossed roller bearing for harmonic reducer
CN111623984A (en) * 2020-05-17 2020-09-04 浙江来福谐波传动股份有限公司 Dynamic torque testing machine of crossed roller bearing for harmonic reducer
CN111595581B (en) * 2020-05-17 2021-10-26 浙江来福谐波传动股份有限公司 Dynamic torque testing method of special crossed roller bearing for harmonic reducer
CN111623984B (en) * 2020-05-17 2021-12-14 浙江来福谐波传动股份有限公司 Dynamic torque testing machine of crossed roller bearing for harmonic reducer
CN113049154A (en) * 2021-03-10 2021-06-29 上海交通大学 Space momentum wheel bearing friction torque testing machine and testing method thereof

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