Metal material experimental rig based on space ball-and-socket hinge device
Technical field
The present invention relates to a kind of metal material experimental rigs, and in particular to a kind of metal material based on space ball-and-socket hinge device
Experimental rig.
Background technique
The support of many new materials of the development need of modern technologies with rapid changepl. never-ending changes and improvements.Since the scientific and technological tide of third time is swept across
Since the whole world, the same information of new material, the energy together, referred to as three big pillars of modern science and technology.The birth of new material will drive
The rapid development of related industry and technology, or even new industry and technical field can be expedited the emergence of.Material science has developed into one
The door comprehensive branch of learning interdisciplinary.According to the actual conditions that China's current and future develops, the research and development of field of new materials need big
The practical data of amount, as the theoretical carrier for being applied to practice.Existing metal material contact fatigue test device, system structure
Complexity, transmission system energy consumption is higher, so being badly in need of new mechanism, new invention improves the controllability and stability of test.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of automatic control that can be realized metal material contact fatigue test with
The metal material experimental rig based on space ball-and-socket hinge device of quantitative analysis.
A kind of metal material experimental rig based on space ball-and-socket hinge device, including input shaft, space connecting-rod axis, auxiliary input
Axis is compressed axially spring, output turntable, fixed pedestal, the first revolute, cylindrical pair, the second revolute, compression linear motion bullet
Spring, Moving plate, quiet disk, transmission axis, space axis of oscillation, upper space flexural pivot, down space flexural pivot, lower friction contact fatigue point, on
Friction contact fatigue point;
The input shaft includes line shaft, power source, power source washer, crank washer, eccentric mechanism and jointing washer;
The both ends of line shaft are the stud of screw thread setting, and upper end from top to bottom screws in power source and power source washer respectively;Lower end stud
The threaded hole at eccentric mechanism center is screwed in, while being compacted crank washer between line shaft and eccentric mechanism;Jointing washer is placed in partially
Below innermost being handle, space flexural pivot screws in screw hole on the left of eccentric mechanism in cooperation;
The space connecting-rod axis includes upper space ball-joint connector, swinging shaft, upper end washer, lower end washer, down space ball
Articulated joint;Second revolute includes swivel bearing on two;Moving plate is connected to space connecting-rod axis by swivel bearing on two
Middle part, and Moving plate is compacted by upper end washer and lower end washer respectively up and down;Space connecting-rod axis upper and lower ends pass through swinging shaft
It is respectively connected to space ball-joint connector and down space ball-joint connector, upper space ball-joint connector and down space ball-joint connect
The inside of head is embedded with upper space flexural pivot and down space flexural pivot respectively again;
The auxiliary input axis includes servo axis, electromagnetic brake, bearing washer, profile gasket bias terminal pad, lower flexural pivot
Washer and upper flexural pivot washer, servo axis both ends are the stud of screw thread setting, and upper end stud screws in the spiral shell of eccentric connection disk center
Pit, while profile gasket is compacted between servo axis and eccentric terminal pad, lower end screw in respectively from the bottom to top electromagnetic brake and
Bearing washer;Upper flexural pivot washer and lower flexural pivot washer is adjacent is placed in eccentric terminal pad top, cooperation down space flexural pivot screws in eccentric
Terminal pad screwed hole of centre;
The output turntable includes rotation contact disc and upper spring washer, translation sliding axle, threaded insert, lower spring pad
Circle, limiting gasket and contact disc locking nut, the threaded hole of eccentric terminal pad two sides are separated with threaded insert and lower spring washer
Screw-in has translation sliding axle;Translation sliding axle middle and upper part is screwed with rotation contact disc, is equipped with upper spring washer below rotation contact disc,
Steering compressed spring is cased on translation sliding axle between upper spring washer and lower spring washer;Translation sliding axle top is by connecing
The compacting of tactile disk locking nut has limiting gasket;
The fixed pedestal includes both ends connection elongate rod, lower fixed disk, upper fixed disk, threaded insert, spring washer, thin
Long sliding bar, sports limiting washer and quiet disk locking nut;The quiet disk includes opposing stationary disk and adjusting washer (disk);Two two
Connection elongate rod in end constitutes rectangle fixed pedestal by being threaded into the threaded hole of upper fixed disk and lower fixed disk respectively up and down;It passes
Shaft line two sides symmetrically have elongated sliding shaft to be separated with threaded insert and the upper fixed disk of spring washer screw-in;Elongated sliding shaft middle and lower part
Equipped with opposing stationary disk, adjusting washer (disk), the elongated sliding shaft between threaded insert and adjusting washer (disk) are equipped with above opposing stationary disk
On be cased with compression linear motion spring;Elongated sliding shaft bottom is screwed with quiet disk locking nut and sports limiting pad respectively from the bottom to top
Circle;
First revolute includes that two Shafts are held;The cylindrical pair includes two cylindrical bearings;Auxiliary input axis passes through
Two Shafts, which are held, is fixed in lower fixed disk;Input shaft is fixed in upper fixed disk by two cylindrical bearings;Space connecting-rod axis passes through
Upper space flexural pivot and down space flexural pivot are separately connected input shaft and auxiliary input axis.
A kind of metal material experimental rig based on space ball-and-socket hinge device: the power source, input shaft, space connecting-rod axis,
Moving plate forms an active movement chain, and the quiet disk, output turntable, auxiliary input axis, electromagnetic brake form a driven motions chain, main
Dynamic kinematic chain persistent movement, and driven motions chain involuntary speed reduction under the drive of active movement chain moves;The quiet disk and pedestal phase
Due to there is the thrust of compression linear motion spring to generate far from trend, so that quiet disk presses to Moving plate, in upper friction between mutually
Realize that metal contact fatigue attacking material tests required condition at contact fatigue point;The output turntable and auxiliary input axis mutually it
Between due to there is the thrust for being compressed axially spring to generate far from trend so that output turntable presses to Moving plate, in lower CONTACT WITH FRICTION
Realize that metal contact fatigue attacking material tests required condition at fatigue point.
As a kind of perferred technical scheme: high-intensitive screw thread fastening glue is injected in each threaded connection place.
As a kind of perferred technical scheme: axis of the outer ring that two Shaft of the first revolute is held in transmission axis
Clamp up lower fixed disk, outer ring radially being fixed by the cylindrical hole of lower fixed disk in transmission axis of swivel bearing;Rotation
The inner ring of bearing is gripped in the axial direction of transmission axis by bearing washer and profile gasket, and the inner ring of swivel bearing is being driven
Axis is radially fixed by the middle part cylindrical shaft of servo axis;First revolute, cylindrical pair, the second revolute, electromagnetic brake
It is such connection structure with eccentric terminal pad.
As a kind of perferred technical scheme: the quiet disk makees upward-downward translation relative to upper fixed disk along transmission axis;Institute
It states rotation contact disc and makees upward-downward translation relative to electromagnetic brake along transmission axis;The input shaft and auxiliary input axis are along transmission shaft
Line rotates relative to pedestal;The upper space flexural pivot and down space flexural pivot are determined along transmission axis relative to fixed pedestal
Axis rotation.
As a kind of perferred technical scheme: angle is 17-29 ° between the transmission axis and space axis of oscillation.
As a kind of perferred technical scheme: the contact point of the axial-movement of the Moving plate and opposing stationary disk is upper friction
Contact fatigue point, the contact point with rotation contact disc are lower friction contact fatigue point;Moving plate connecing on Moving plate relative to quiet disk
Rail-engaging mark is a space circumference, and Moving plate is plane relative to the projection that contact trace of the quiet disk on quiet disk is space circumference
Circle;Moving plate is a space circumference relative to contact trace of the output turntable on Moving plate, and Moving plate relative to output turntable defeated
It is flat circle that the contact trace on turntable, which is the projection of space circumference, out.
As a kind of perferred technical scheme: the length of the space circumference is since transmission axis is in the folder with axis of oscillation
The relationship at angle generates the length difference moved twice.
As a kind of perferred technical scheme: the velocity of rotation of the output turntable is less than input shaft velocity of rotation, is defeated
Enter the length relative difference twice of axis velocity of rotation.
Beneficial effects of the present invention: (1) compared to the prior art, active movement chain persistent movement of the invention, and it is driven
Kinematic chain involuntary speed reduction under the drive of active movement chain moves, and under kinematic chain control brake brake condition, causes two groups
Traction Drive point fluid film lubrication shearing force between kinematic chain, to realize the realization metal contact fatigue attacking material examination
It tests., without using conventional gear: (2) experimentation cost and efficiency have a certain upgrade, and test mechanism is simple, reduce
Disturbing factor, thus improve the controllability of whole system with it is quantitative.
Detailed description of the invention
Fig. 1 is that a kind of key point of a better embodiment of metal material experimental rig based on space ball-and-socket hinge device is cutd open
View;
Fig. 2 is that a kind of detailed point of a better embodiment of metal material experimental rig based on space ball-and-socket hinge device cuts open
View;
In figure: 100 input shafts, 101 line shafts, 102 power sources, 103 power source washers, 104 crank washers, 105 bias
Crank, 106 jointing washers, 200 space connecting-rod axis, space ball-joint connector, 202 swinging shafts, 203 upper end washers, 204 on 201
Lower end washer, 205 down space ball-joint connectors, auxiliary input axis 300,301 servo axis, 302 electromagnetic brakes, 303 bearing washers,
304 profile gaskets, 305 eccentric terminal pads, 306 lower flexural pivot washers, flexural pivot washer, 400 are compressed axially spring, 500 outputs on 307
Turntable, 501 rotation contact discs, 502 upper spring washers, 503 translation sliding axles, 504 threaded inserts, 505 lower spring washers, 506
It is limiting gasket, 507 contact disc locking nuts, 600 fixed pedestals, 601 both ends connection elongate rod, 602 lower fixed disks, solid on 603
Price fixing, 604 threaded inserts, 605 spring washers, 606 elongated sliding shafts, 607 sports limiting washers, 608 quiet disk locking nuts,
700 first revolutes, 701 Shafts hold, 800 cylindrical pairs, 801 cylindrical bearings, 900 second revolutes, rotary shaft on 901
It holds, 1000 compression linear motion springs, 1100 Moving plates, 1200 quiet disks, 1201 opposing stationary disks, 1202 adjusting washer (disk)s, 1300 biographies
Shaft line, 1400 space axiss of oscillation, space flexural pivot on 1500,1600 down space flexural pivots, 1700 lower friction contact fatigue points,
Friction contact fatigue point on 1800.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below in conjunction with embodiment pair
The present invention or description of the prior art work are specifically introduced in detail.
With reference to attached drawing, a kind of metal material experimental rig based on space ball-and-socket hinge device, including input shaft 100, space connect
Bar axis 200, auxiliary input axis 300 are compressed axially spring 400, output turntable 500, fixed pedestal 600, the first revolute 700, circle
Column pair 800, the second revolute 900, compression linear motion spring 1000, Moving plate 1100, quiet disk 1200, transmission axis 1300, sky
Between axis of oscillation 1400, upper space flexural pivot 1500, down space flexural pivot 1600, lower friction contact fatigue point 1700, upper CONTACT WITH FRICTION
Fatigue point 1800;
The input shaft 100 includes line shaft 101, power source 102, power source washer 103, crank washer 104, eccentric song
Handle 105 and jointing washer 106;The both ends of line shaft 101 are the stud of screw thread setting, and upper end from top to bottom screws in power respectively
Source 102 and power source washer 103;Lower end stud screws in the threaded hole at 105 center of eccentric mechanism, while line shaft 101 and bias
Crank washer 104 is compacted between crank 105;Jointing washer 106 is placed in 105 lower section of eccentric mechanism, space flexural pivot 1500 in cooperation
Screw in 105 left side screw hole of eccentric mechanism;
The space connecting-rod axis 200 includes upper space ball-joint connector 201, swinging shaft 202, upper end washer 203, lower end pad
Enclose 204, down space ball-joint connector 205;Second revolute 900 includes swivel bearing 901 on two;Moving plate 1100 passes through two
Upper swivel bearing 901 is connected to 200 middle part of space connecting-rod axis, and about 1100 Moving plate is respectively by upper end washer 203 under
Washer 204 is held to be compacted;200 upper and lower ends of space connecting-rod axis are respectively connected to space ball-joint connector 201 by swinging shaft 202
With down space ball-joint connector 205, the inside of upper space ball-joint connector 201 and down space ball-joint connector 205 is again embedding respectively
There are upper space flexural pivot 1500 and down space flexural pivot 1600;
The auxiliary input axis 300 is inclined including servo axis 301, electromagnetic brake 302, bearing washer 303, profile gasket 304
Heart terminal pad 305, lower flexural pivot washer 306 and upper flexural pivot washer 307,301 both ends of servo axis are the stud of screw thread setting, upper end
Stud screws in the threaded hole at 305 center of eccentric terminal pad, while compacting abnormity pad between servo axis 301 and eccentric terminal pad 305
Circle 304, lower end screw in electromagnetic brake 302 and bearing washer 303 respectively from the bottom to top;Upper flexural pivot washer 306 and lower flexural pivot pad
Enclose 307 it is adjacent be placed in eccentric 305 top of terminal pad, cooperation down space flexural pivot 1600 screws in eccentric 305 screwed hole of centre of terminal pad;
The output turntable 500 includes rotation contact disc 501 and upper spring washer 502, translation sliding axle 503, screw thread pad
Circle 504, lower spring washer 505, limiting gasket 506 and contact disc locking nut 507, the screw thread of eccentric 305 two sides of terminal pad
Hole, which is separated with threaded insert 504 and lower spring washer 505 screw-in, translation sliding axle 503;Translation 503 middle and upper part of sliding axle, which is screwed with, to be turned
Dynamic contact disc 501 rotates and is equipped with upper spring washer 502 below contact disc 501, upper spring washer 502 and lower spring washer 505 it
Between translation sliding axle 503 on be cased with turn to compressed spring 400;Translation 503 top of sliding axle passes through contact disc locking nut 507
Compacting has limiting gasket 506;
The fixed pedestal 600 includes that both ends connect elongate rod 601, lower fixed disk 602, upper fixed disk 603, threaded insert
604, spring washer 605, elongated sliding shaft 606, sports limiting washer 607 and quiet disk locking nut 608;The quiet disk 1200
Including opposing stationary disk 1201 and adjusting washer (disk) 1202;Two both ends connection elongate rods are up and down respectively by being threaded into upper fixation
The threaded hole of disk 603 and lower fixed disk 602 constitutes rectangle fixed pedestal 600;Symmetrically there are elongate slide in transmission 1300 two sides of axis
Bar 606 is separated with threaded insert 604 and spring washer 605 screws in upper fixed disk 603;606 middle and lower part of elongated sliding shaft is equipped with opposite
Stationary disk 1201 is equipped with adjusting washer (disk) 1202 above opposing stationary disk 1201, between threaded insert 604 and adjusting washer (disk) 1202
Compression linear motion spring 1000 is cased on elongated sliding shaft 606;606 bottom of elongated sliding shaft is screwed with quiet disk respectively from the bottom to top
Locking nut 608 and sports limiting washer 607;
First revolute 700 includes that two Shafts hold 701;The cylindrical pair 800 includes two cylindrical bearings 801;
Auxiliary input axis 300 holds 701 by two Shafts and is fixed in lower fixed disk 602;Input shaft 100 is solid by two cylindrical bearings 801
It is connected to fixed disk 603;Space connecting-rod axis 200 is separately connected input shaft by upper space flexural pivot 1500 and down space flexural pivot 1600
100 and auxiliary input axis 300.
The power source 102, input shaft 100, space connecting-rod axis 200, Moving plate 1100 are formed with an active movement chain, institute
It states quiet disk 1200, output turntable 500, auxiliary input axis 300, electromagnetic brake 302 and is formed with a driven motions chain, active movement chain
Persistent movement, and driven motions chain involuntary speed reduction under the drive of active movement chain moves;The quiet disk 1200 and pedestal 600 are mutual
Between due to there is the thrust of compression linear motion spring 1000 to generate far from trend, so that quiet disk 1200 presses to Moving plate
1100, the test of metal contact fatigue attacking material is realized at upper friction contact fatigue point 1800;The output turntable 500 and pair
Input shaft 300 is between each other due to there is the thrust for being compressed axially spring 400 to generate far from trend, so that output turntable 500
Moving plate 1100 is pressed to, the test of metal contact fatigue attacking material is realized at lower friction contact fatigue point 1700.
High-intensitive screw thread fastening glue is injected in each threaded connection place.
Described 700 liang of Shafts of the first revolute hold 701 outer ring in the case where the axis of transmission axis 1300 clamps up
Fixed disk 602, outer ring radially being fixed by the cylindrical hole of lower fixed disk 602 in transmission axis 1300 of swivel bearing 701;Rotation
The inner ring that shaft holds 701 is gripped in the axial direction of transmission axis 1300 by bearing washer 303 and profile gasket 304, rotates
The inner ring of bearing 701 is radially fixed by the middle part cylindrical shaft of servo axis 301 transmission axis 1300;First revolute 700,
Cylindrical pair 800, the second revolute 900, electromagnetic brake 1905 and eccentric terminal pad 305 are such connection structure.
The quiet disk 1200 makees upward-downward translation relative to upper fixed disk 603 along transmission axis 1300;The rotation contact
Disk 501 makees upward-downward translation relative to electromagnetic brake 1905 along transmission axis 1300;The input shaft 100 and auxiliary input axis 300
It rotates along transmission axis 1300 relative to pedestal 600;The upper space flexural pivot 1500 and down space flexural pivot 1600 are along biography
Shaft line 1300 rotates in fixed axis relative to fixed pedestal 600.
Angle is 17-29 ° between the transmission axis 1300 and space axis of oscillation 1400.
The contact point of the axial-movement of the Moving plate 1100 and opposing stationary disk 1201 is upper friction contact fatigue point
1800, the contact point with rotation contact disc 501 is lower friction contact fatigue point 1700;Moving plate 1100 is relative to quiet disk 1200 dynamic
Contact trace on disk 1100 is a space circumference, and contact trace of the Moving plate 1100 relative to quiet disk 1200 on quiet disk 1200
Projection for space circumference is flat circle, and the length of space circumference is since transmission axis 1300 is in the folder with axis of oscillation 1400
The relationship at angle generates the length difference of movement, causes to generate on the direction of transmission axis 1300 due to Moving plate 1100 opposite
Rotation;Moving plate 1100 is a space circumference relative to contact trace of the output turntable 500 on Moving plate 1100, and 1100 phase of Moving plate
It is flat circle for the projection that contact trace of the output turntable 500 on output turntable 500 is space circumference, space circumference
Length generates second of difference of length of movement, leads since transmission axis 1300 is in the relationship of the angle with axis of oscillation 1400
It causes to generate opposite rotation on the direction of transmission axis 1300 due to output turntable 500.
The velocity of rotation of the output turntable 500 is only the length relative difference twice of 100 velocity of rotation of input shaft, institute
To export the velocity of rotation of turntable 500 and the length velocity relation of 100 velocity of rotation of input shaft as decreasing transmission.
The electromagnetic brake 302 and control system relies on the non-contact connection function of electromagnetic field.
The input shaft 100 closes movement of the space connecting-rod axis 200 at space flexural pivot 1500 and space flexural pivot 1600
System are as follows: input shaft 100 is equivalent to the forearm of human body, and space connecting-rod axis 200 is equivalent to the palm of human body, 1500 He of flexural pivot in space
The wrist that space flexural pivot 1600 is equivalent to human body carries out spatial movement;I.e. space connecting-rod axis 200 does space oscillating motion, Spatial Sphere
Hinge 1500 and space flexural pivot 1600 do speed change circular motion.
It should be noted last that above embodiments only illustrate technical solution of the present invention rather than limitation to supplement.To the greatest extent
Pipe the invention is described in detail with reference to an embodiment, this field it is vast it will be appreciated by the skilled person that skill of the invention
Art scheme is modified or is replaced on an equal basis, without departure from the spirit and scope of technical solution of the present invention, should all cover at this
In the scope of the claims of invention.