CN207850664U - A kind of three axis resilient bushing fatigue testers - Google Patents
A kind of three axis resilient bushing fatigue testers Download PDFInfo
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- CN207850664U CN207850664U CN201721866437.9U CN201721866437U CN207850664U CN 207850664 U CN207850664 U CN 207850664U CN 201721866437 U CN201721866437 U CN 201721866437U CN 207850664 U CN207850664 U CN 207850664U
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- resilient bushing
- link block
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- 238000004088 simulation Methods 0.000 abstract description 10
- 230000035882 stress Effects 0.000 description 17
- 238000012360 testing method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
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Abstract
The utility model specifically discloses a kind of three axis resilient bushing fatigue testers, including：Connection component, including the first link block and the second link block, the first link block and the second link block are respectively used to connect with the outer rim of resilient bushing and interior steel ring；First load maintainer, including the first load bar and the first driving mechanism for driving the first load bar straight reciprocating motion, the first load bar are even connect with the first link block, and the central shaft of the first load bar and resilient bushing is in predetermined acute angle；Second load maintainer, including the second load bar and the second driving mechanism for driving the second load bar straight reciprocating motion, the second load bar are connect with the first link block, and the second load bar is vertical with the first load bar；Third load maintainer is connect with the second link block, and the interior steel ring of energy band dynamic elasticity bushing is reversed around central shaft.Three axis resilient bushing fatigue tester provided by the utility model, can make the tired force simulation of resilient bushing closer to true stress.
Description
Technical field
The utility model is related to piece test equipment technical fields, more particularly to a kind of three axis resilient bushing fatigue tests
Machine.
Background technology
With the development of auto industry, automobile has become the indispensable walking-replacing tool of majority, and people are to each of automobile
Item Performance And Reliability requires also higher and higher.Resilient bearing bushing is widely used in vapour as important damping type component
The position of vehicle stress complexity has many advantages, such as decaying impact, absorbs high-frequency vibration and noise and small and light-weight, answers
Used in positions such as vehicle frame, torsion-beam, connecting rod and control arms.The structure of resilient bearing bushing generally include outer steel sleeve, interior steel bushing and
The rubber bushing being arranged between outer steel sleeve and interior steel bushing, rubber bushing is with interior outer steel sleeve glue sticking and through high temperature interference pressure
Match.Under steam, resilient bearing bushing bears torsion, tilts, the various load complicated and changeable such as axially and radially automobile, to
Cause rubber bushing that fatigue failure occurs, rubber may detach at metal adhesive, tear and rubber crackle aging etc.
Phenomenon seriously affects reliability, ride comfort and the comfort of seating of automotive system.Therefore resilient bearing bushing is in development or life
Antenatal to need to carry out various tests to its performance, the various stress that the elastic bearing insert of simulation is subject under working environment are simultaneously
Carry out fatigue test.
Prior art discloses a kind of bushing triple channel brake fatigue test racks, including rotating driving device, axially driving dress
It sets, radial drive, rotation axis and mounting blocks；Rotating driving device passes through bushing endoporus simultaneously with rotation axis connection, rotation axis
It is adjacent to bushing madial wall；It is sleeved on bushing and is adjacent to the outer wall of bushing outside mounting blocks, the front and rear sides of mounting blocks are respectively provided with
There are load bar, load bar to be arranged in parallel with transmission shaft, one end of load bar is connect with axial drive means, and the other end passes through connection
Bar is connected with the mounting block, and connecting rod is vertically arranged with rotation axis, and one of connecting rod is connect with radial drive.
Above-mentioned bushing triple channel brake fatigue test rack, although can be to rubber bushing into axial torsion power, axial force and radial direction
The load of power, but the resilient bushing due to being installed at partial elastic bushing especially automobile torsion beam, axial and vehicle vehicle body
Width direction there are certain angles, therefore at torsion-beam the axial direction of stress and resilient bushing of the resilient bushing in automobilism or
Radial there may be certain angles, and existing resilient bushing fatigue tester can only be along the axially or radially application of resilient bushing
Power can not effectively simulate the actual loading situation of resilient bushing, the especially stressing conditions of the resilient bushing of torsion-beam etc..
Utility model content
The purpose of this utility model is to provide a kind of three axis resilient bushing fatigue testers, so that the stress of resilient bushing
Simulation, the especially force simulation of the resilient bushing of torsion-beam etc. are closer to the true stress of reality.
In order to achieve the above objectives, the utility model uses following technical proposals：
A kind of three axis resilient bushing fatigue testers, including：
Connection component comprising the first link block and the second link block, first link block and second link block
It is respectively used to connect with the outer rim of the elasticity lining and interior steel ring；
First load maintainer comprising the first drive of the first load bar and driving the first load bar straight reciprocating motion
Motivation structure, first load bar and first link block, the central shaft of first load bar and the resilient bushing are in
Predetermined acute angle；
Second load maintainer comprising the second drive of the second load bar and driving the second load bar straight reciprocating motion
Motivation structure, second load bar are connect with first link block, and second load bar is vertical with first load bar；
Third load maintainer is connect with second link block, and state described in capable of driving the interior steel ring of resilient bushing around
Central shaft rotation.
Preferably, second link block is U-shaped, and the U-shaped both ends of second link block are connected by connecting rod, institute
The interior steel ring fixing sleeve for stating resilient bushing is set in the connecting rod.
Preferably, the first torsion claw and the second torsion claw is also respectively connected in the U-shaped both ends of second link block,
The central shaft of the first torsion claw and the second torsion claw is conllinear with first load bar.
Preferably, the third load maintainer includes the torsion work that the driving first torsion claw is reversed around central shaft
Dynamic device.
Preferably, the torsion actuator includes the deflection arm being rotatablely connected successively, connects swing rod and third driving mechanism,
One end that the deflection arm is not connected with the connection swing rod is fixedly connected with the first torsion claw.
Preferably, between first load bar and first driving mechanism and second load bar and described
Oscillating bearing connection is all made of between two driving mechanisms.
Preferably, first link block includes the first fixture block and the second fixture block, and first fixture block and described second block
Block is connected and in the outer steel sleeve for radially clamping the resilient bushing of the outer steel sleeve of the resilient bushing.
Preferably, first fixture block is connect with second load bar, and first fixture block is close to second load
One end of bar, which tilts, is convexly equipped with load interconnecting piece, the load interconnecting piece towards one end end face of second load bar perpendicular to
Second load bar.
Preferably, the connection component further includes U-shaped connecting rod group, and the both ends of the U-shaped connecting rod group are connected to
The both sides of first link block vertically, first load bar are connected to the middle section of the U-shaped connecting rod group.
Preferably, the outer steel sleeve of the resilient bushing is arranged with General sleeve, and first link block is sheathed on described general
It puts on.
The beneficial effects of the utility model are：
Applied and the inclination in a certain angle of resilient bushing central shaft to resilient bushing outer rim by the first load maintainer
Axial force is applied and the radial inclined radial in a certain angle of resilient bushing by the second loading structure to resilient bushing outer rim
Power and steel ring applies the twisting resistance that is reversed around central shaft into resilient bushing by third load maintainer, can simulate elastic lining
When the axially and/or radially deviation of the stress of set and resilient bushing, the performance of resilient bushing makes the stress of resilient bushing, especially
Be the resilient bushing of automobile torsion beam etc. force status closer to the force status under practical work state, make the knot of simulation
Fruit better authenticity and reliability preferably realize the simulation test of road spectrum, functional.
Description of the drawings
Fig. 1 is the structural schematic diagram for the three axis resilient bushing fatigue testers that the utility model embodiment provides；
Fig. 2 is the partial enlarged view at A in Fig. 1；
Fig. 3 is the structural schematic diagram for the first torsion claw that the utility model embodiment provides；
Fig. 4 is the phantom for the three axis resilient bushing fatigue testers that the utility model embodiment provides；
Fig. 5 is the partial enlarged view at B in Fig. 4；
Fig. 6 is the structural schematic diagram for the connection component that the utility model embodiment provides；
Fig. 7 is the structural schematic diagram for the first fixture block that the utility model embodiment provides；
Fig. 8 is the structural schematic diagram for the second fixture block that the utility model embodiment provides.
It is marked in figure as follows：
The first load maintainers of 1-；The first load bars of 11-；The first driving mechanisms of 12-；
The second load maintainers of 2-；The second load bars of 21-；The second driving mechanisms of 22-；
3- third load maintainers；31- first reverses claw；311- first connecting portions；312- support portions；The connections of 313- second
Portion；314- annular convex platform；The rectangular card slots of 315-；32- reverses actuator；321- deflection arms；322- connection swing rods；323- thirds are driven
Motivation structure；33- first reverses fixed seat；34- second reverses claw；35- second reverses fixed seat；36- reducing sleeves；
4- connection components；The first link blocks of 41-；The first fixture blocks of 411-；The first arcwall faces of 4111-；4112- connecting grooves；
4113- locating slots；4114- loads interconnecting piece；4115- connection through-holes；The second fixture blocks of 412-；The second arcwall faces of 4121-；4122-
Connect convex block；The second link blocks of 42-；421- connecting rods；422- baffle rings；43-U type connecting rod groups；431- cross bars；432- upright bars；
5- resilient bushings；
6- testing stands；
7- General sleeves.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, it illustrates only for ease of description, in attached drawing and the relevant part of the utility model rather than entire infrastructure.
Fig. 1 is the structural schematic diagram of three axis resilient bushing fatigue testers that the utility model embodiment provides, for
Resilient bushing 5 to be measured applies the axially or radially inclined power and torque with resilient bushing 5, and simulation is when the outside of resilient bushing 5
Stress deviate resilient bushing 5 axially and/or radially when, the fatigue behaviour of resilient bushing 5 so that resilient bushing 5 fatigue examination
Test closer in true stress, especially can simulation test be installed on the resilient bushing 5 of automobile torsion beam etc. under true stress
Fatigue behaviour.As shown in Figure 1, three axis resilient bushing fatigue tester provided in this embodiment includes for connecting resilient bushing
5 and each load maintainer connection component 4 and be connected respectively with connection component 4 the first load maintainer 1, the second load maintainer 2 and
Third load maintainer 3.Wherein, it is axially inclined to apply relative resilient bushing 5 to 5 outer rim of resilient bushing for the first load maintainer 1
Power, the second loading structure can apply the power of 5 radial skew of relative resilient bushing to 5 outer rim of resilient bushing, and third loads machine
Structure 3 can apply the torque reversed around 5 central shaft of resilient bushing by steel ring into resilient bushing 5.Pass through the first load maintainer 1, second
The effect alone or in combination of load maintainer 2 and third load maintainer 3 can more effectively simulate resilient bushing 5 in practical work
Make the true stress under state.
Specifically, as shown in Figure 1, connection component 4 includes the first link block 41 for being sheathed on 5 outer rim of resilient bushing, consolidates
Surely the U-shaped connecting rod group 43 for being connected to the second link block 42 of steel ring in resilient bushing 5 and being connected on the first link block 41.
First load maintainer 1 includes the first load bar 11 and connects and drive the first driving machine of 11 straight reciprocating motion of the first load bar
Structure 12, the first load bar 11 is connected to the first link block 41 by U-shaped connecting rod group 43, and is in the central shaft of resilient bushing 5
Predetermined acute angle；Second load maintainer 2 includes the second load bar 21 and connects and drive 21 straight reciprocating motion of the second load bar
Second driving mechanism 22, the second load maintainer 2 is connected to the first link block 41, and the second load bar 21 and the first load bar 11 hang down
Directly；Third load maintainer 3 is connected to the second link block 42, and the second link block 42 can be driven to be turned round around the central shaft of resilient bushing 5
Turn, to drive the interior steel ring of resilient bushing 5 to be reversed around central shaft.
Since the first load maintainer 1 and the second load maintainer 2 act on the outer rim of resilient bushing 5, to eliminate
What the load movement of the first load maintainer 1 and the load of the second load maintainer 2 moved influences each other, the first load bar 11 and first
Oscillating bearing connection is all made of between driving mechanism 12 and between the second load bar 21 and the second driving mechanism 22.
In the present embodiment, the structure of the first load maintainer 1 and the second load maintainer 2 is essentially identical, and Relative vertical is set
It sets, driving mechanism is respectively adopted and drives the first load bar 11 or 21 straight reciprocating motion of the second load bar, and passes through the first connection
Block 41 is along the axially or radially applied force for centainly tilting 5 outer steel sleeve of angular resilient bushing.In the present embodiment, the first driving mechanism
12 and second driving mechanism 22 be servo-cylinder, the servo-cylinder of the first load maintainer 1 and the second load maintainer 2 passes through respectively
Oil cylinder seat is installed on testing stand 6, and displacement sensor is connected on the piston rod of servo-cylinder, for detecting and controlling first
The shift reciprocately amount of load bar 11 or the second load bar 21, to the first load bar 11 of control or the loading force of the second load bar 21
Size.Using servo-controlled servo-cylinder, the load of the first load maintainer 1 and the second load maintainer 2 can be acted into
Row accuracy controlling is conducive to the test accuracy of 5 fatigue test of resilient bushing, and runs safer reliable.First driving machine
Structure 12 or the second driving mechanism 22, which may be other, can drive the first load bar 11 or the second load bar 21 to move along a straight line
Structure, if the rotation of servo motor is converted to linear motion by servo motor by transmission component, to the first load bar of driving
11 or 21 straight reciprocating motion of the second load bar etc..
Fig. 2 is the partial enlarged view at A in Fig. 1, as shown in Fig. 2, third load maintainer 3 includes the first torsion 31 He of claw
The torsion actuator 32 reverse around central shaft of the first torsion claw 31 of driving, wherein one end of the first torsion claw 31 and the
Two link blocks 42 are fixedly connected, and one end is connected to torsion actuator 32, and the first torsion claw 31 is driven by reversing actuator 32
Torsion to drive the second link block 42 being connect with the first torsion claw 31, and then drives and 42 stationary phase of the second link block
The interior steel bushing of resilient bushing 5 even is reversed around central shaft.In the present embodiment, the torsional axis and resilient bushing 5 of claw are reversed
Central shaft be in predetermined acute angle, that is, reverse claw face the first load bar 11 and be arranged.This kind of set-up mode can change elasticity
When the angle of the predetermined acute angle of the central shaft of bushing 5 and the first load bar 11, have no need to change third load maintainer 3 structure and
Set-up mode only changes the link position of resilient bushing 5 and the second link block 42 or replaces the second link block 42, you can realizes not
With the fatigue test of resilient bushing under predetermined acute angle 5.
As shown in Fig. 2, in the present embodiment, torsion actuator 32 includes and the first torsion 31 deflection connected in sequence of claw
Arm 321, connection swing rod 322 and third driving mechanism 323.Wherein, the axis of the axis of connection swing rod 322 and the first torsion claw 31
Line is vertical, and one end of deflection arm 321 is fixedly connected on the first torsion claw 31, and the other end is rotationally connected with connection pendulum by loop bar
Bar 322.Third driving mechanism 323 can be the servo hydraulic cylinders such as servo-cylinder, servo cylinder, the torsion to the first torsion claw 31
Gyration is accurately controlled, and to which control is applied to the torque size of steel ring in resilient bushing 5, makes the fatigue of resilient bushing 5
It tests safer reliable.When servo hydraulic cylinder, which controls its piston cylinder, to be moved back and forth, piston rod drives connection swing rod 322 along vertical
It is directly moved back and forth in the direction of the first torsion claw 31, to drive the axis of the opposite first torsion claw 31 of deflection arm 321 past
Physical pendulum turns；Due to deflection arm 321 around first torsion claw 31 axis swinging motion cause connect swing rod 322 move when not with
The axis of piston rod is in same straight line, to ensure that the linear translational motion of piston rod is converted to the swinging motion of deflection arm 321,
Oscillating bearing connection is all made of between connection swing rod 322 and deflection arm 321 and piston rod.
Torsion actuator 32 can be selected as the other forms except above structure, and servo motor such as may be used and directly drive
First torsion claw 31 rotates, to drive the interior steel ring of resilient bushing 5 to be reversed around central shaft.
To prevent the axis for reversing the first load bar of axis runout 11 of the first torsion claw 31, to influence testing fatigue
As a result accuracy, the first torsion claw 31 are supported in the first torsion fixed seat 33.Fig. 3 is the first torsion provided in this embodiment
Turn the structural schematic diagram of claw 31, as shown in figure 3, the first torsion claw 31 includes sequentially connected first connecting portion 311, support
Portion 312 and second connecting portion 313.First connecting portion 311 can be hexahedron shown in Fig. 3, or other shapes such as cylindrical
Shape, support portion 312 are cylindrical structure, and second connecting portion 313 is cylindrical structure, and its outer diameter is more than the outer of support portion 312
Diameter is provided with annular convex platform 314 between support portion 312 and second connecting portion 313, and the outer diameter of second connecting portion 313 is more than ring
The outer diameter of shape boss 314.Second connecting portion 313 is used to fix with the second link block 42, for convenience of second connecting portion 313 and second
The fixation of link block 42, the one end of second connecting portion 313 far from support portion 312 offer rectangular card slot 315, rectangular card slot 315
Run through second connecting portion 313 along the axis direction perpendicular to two interconnecting pieces 313.
Fig. 4 is the phantom of three axis resilient bushing fatigue tester provided by the embodiment, and Fig. 5 is the office at B in Fig. 4
Portion's enlarged drawing, as shown in figure 5, the first connecting portion 311 of the one the first link blocks 41 is for connecting deflection arm 321, deflection arm 321
On offer connecting hole corresponding with first connecting portion 311, connect first connecting portion 311 for wearing, first connecting portion 311 and deflection
Correspondence offers threaded hole on arm 321, for making first connecting portion 311 be fixedly connected with deflection arm 321；First connecting portion 311
Outer diameter be less than support portion 312 outer diameter, to be attached positioning to first connecting portion 311 and deflection arm 321.Support portion 312
It is connected in the first torsion fixed seat 33 by bearing, so that the first torsion claw 31 can opposite first torsion, 33 turns of fixed seat
It is dynamic.The first torsion claw 31 is connected in support portion 312 close to one end of deflection arm 321 along its axial direction play in order to prevent
Screw thread is offered, support portion 312 is connected with locking nut, locking nut between the first torsion fixed seat 33 and deflection arm 321
One end abut first torsion fixed seat 33, the other end abut deflection arm 321；Support portion 312 close to second connecting portion 313 one
End is connected with reducing sleeve 36, and one end internal diameter and the support portion 312 of reducing sleeve 36 coordinate, internal diameter and the annular convex platform 314 of the other end
Cooperation, the inner wall that the outer diameter of reducing sleeve 36 reverses fixed seat 33 with first abut, and one end end face of reducing sleeve 36 is connected to the
Two interconnecting pieces 313.Reducing sleeve 36 may be implemented support portion 312 and first and reverse fixed seat by the cooperation with annular convex platform 314
33 connection positioning.
Fig. 6 is the structural schematic diagram of connection component 4 provided in this embodiment, as shown in fig. 6, connection component 4 includes being used for
The first link block 41, the U-shaped connecting rod group 43 for being connect with the second load maintainer 2 and the use being connect with the first load maintainer 1
In the second link block 42 being connect with third load maintainer 3.
Second link block 42 is U-shaped structure, and the both ends of the second link block 42 are convexly equipped with clamping portion on the outside of its two vertical edge,
And one of wedging position is in the rectangular card slot 315 of the first torsion claw 31, and realize the second connection using riveting is fixed
Block 42 and first reverses the fixation of claw 31.It wears to connect between the both ends of second link block 42 and is fixed with connecting rod 421, connecting rod
421 axis is parallel with the horizontal edge of the second link block 42, and resilient bushing 5 is sheathed in connecting rod 421, and connecting rod 421 and bullet
Property bushing 5 interior steel ring interference fit.First torsion claw 31 is reversed by the second link block 42, is connect with second to drive
The connecting rod 421 that block 42 is fixedly connected rotates, and then the interior steel ring of resilient bushing 5 is driven to be reversed around central shaft.In this implementation
In example, connecting rod 421 is bolt, and connecting rod 421 is arranged between the second link block 42 and resilient bushing 5 is arranged with baffle ring 422,
One end of baffle ring 422 is connected to one end of resilient bushing 5, and the other end is connected to the second link block 42, one side of setting of baffle ring 422
Face can be that the connection of the second link block 42 and resilient bushing 5 carries out installation positioning, on the other hand can prevent the second link block
42 collide resilient bushing 5 in twist process, influence the test of resilient bushing 5.
To make the twist motion more exactly of the second link block 42, the second link block 42 is far from the first torsion claw 31
One end be connected with the second torsion claw 34, the second torsion claw 34 is rotationally connected in the second torsion fixed seat 35, and second
It reverses claw 34 and second and reverses the torsion torsion setting of fixed seat 33 of claw 31 and first of 35 face first of fixed seat.When the first torsion
When turning drive the second link block 42 rotation of claw 31, the second link block 42 drives the second torsion claw 34 to rotate, to make second
The stress at 42 both ends of link block is steadily balanced, ensures the stationarity of 42 twist motion of the second link block, to ensure resilient bushing 5
Stationarity and accuracy of the interior steel ring around central shaft twisting action.In the present embodiment, the second torsion claw 34 and first is turned round
Turn 31 structure of claw it is identical or second torsion claw 34 can also be used and first torsion 31 different structure of claw.
To ensure that the second link block 42 and first reverses the coupling stiffness at the torsion claw 34 of claw 31 and second, and prevent
The oversized obstruction other structures of second link block 42 are installed and used, or prevent that the quality of the second link block 42 is excessive and increases
The power for adding driving the second link block 42 rotation, results in waste of resources, and the cross-sectional width of 42 horizontal edge of the second link block is less than two
The cross-sectional width of vertical edge, and two vertical edges and horizontal edge are using circular arc even transition close to the side of resilient bushing 5, far from bullet
Property side using bevel edge transition connect.
U-shaped connecting rod group 43 includes being mutually parallel and horizontally disposed two cross bars 431 and being fixedly connected with two cross bars 431
One end and the upright bar 432 being vertically arranged.Two one end of cross bar 431 far from upright bar 432 are connected to 41 edge of the first link block
The both sides of vertical direction, the first load bar 11 of the first load maintainer 1 are connected to the centre position of upright bar 432.U-shaped connecting rod group
43 are generally aligned in the same plane with the first load bar 11, and the axis of two cross bars 431 is with the axial direction of 5 outer steel sleeve of resilient bushing in pre-
If acute angle.When the first driving mechanism 12 of the first load maintainer 1 drives the first 11 straight reciprocating motion of load bar, the first load
Bar 11 drives the straight reciprocating motion simultaneously of two cross bars 431, since two cross bars 431 are connected to the both ends of the first link block 41,
And first link block 41 be sheathed on the outer rim of resilient bushing 5, therefore, position caused by the reciprocating motion of two cross bars 431
The outer rim for being applied to resilient bushing 5 with power is moved, applies the power along its axial predetermined acute angle to the outer rim of resilient bushing 5, together
When drive resilient bushing 5 outer rim along and its be in axially predetermined acute angle direction linear reciprocating motion.Due in resilient bushing 5
Rubber sleeve between steel bushing and outer steel sleeve, the elasticity of the alternating translational movement rubber sleeve of 5 outer steel sleeve of resilient bushing and consume, therefore
Outer rim generates relative displacement with interior steel ring, and the central shaft of the displacement and interior steel ring is in predetermined angle.Simultaneously as inside and outside steel
Rubber sleeve between circle makes the stress of outer rim and displacement not interfere with stress and the torsion of interior steel ring, i.e. 1 He of the first load maintainer
The load campaign of third load maintainer 3 is independent of each other.
Since loading for the second load maintainer 2 moves the outer steel for acting on resilient bushing 5 again by the first link block 41
The angle of circle, the second load bar 21 and the central shaft of resilient bushing 5 is the complementary angle of predetermined acute angle, and two of U-shaped chain extension bar group
Cross bar 431 is vertical with the second load bar 21, therefore, under the action of the loading force of the second load maintainer 2,41 meeting of the first link block
The movement that slightly rotates occurs around the straight line where the tie point of two cross bars 431 and the first link block 41, to eliminate the movement pair
The influence of the load movement of first load maintainer 1, two cross bars 431 are erected by oscillating bearing with the first link block 41 is installed on
Histogram is connected to the fixed block of both sides, and wherein fixed block includes the disc base being connect with the first link block 41 and is vertically installed in
Fixed link among disc base, two cross bars 431 are connected to fixed link by oscillating bearing respectively.
To improve versatility of 5 fatigue tester of resilient bushing to the elasticity lining of different model, resilient bushing 5 and link cards
General sleeve 7 is connected between block.General sleeve 7 is sheathed on the outer steel sleeve of resilient bushing 5, and is interference fitted and connects with resilient bushing 5,
So that resilient bushing 5 is fitted close with General sleeve 7 during the test, associated movement.The outer wall of General sleeve 7 and the first link block
41 inner surface abuts, General sleeve 7 to be fixed in radial direction.
First link block 41 includes the first fixture block 411 and the second fixture block 412, the first fixture block 411 and the second fixture block 412 it is interior
Diameter with the outer radial of General sleeve 7 coordinate, and the first fixture block 411 be fixedly connected with the second fixture block 412 with to resilient bushing 5 along diameter
It is clamped to direction.Fig. 7 is the structural schematic diagram of the first fixture block 411 provided in this embodiment, as shown in fig. 7, the first fixture block 411 is whole
Body is U-shaped structure, has the first arcwall face 4111 to match with 7 outer diameter radian of General sleeve towards the one side of resilient bushing 5；U
The opposite inside in type fixture block both ends offers connecting groove 4112, and both ends far from connecting groove 4112 are plane on one side, and
Round connection locating slot 4113 is offered, for fixation disc base in the block to be positioned and installed.First fixture block 411
Side far from resilient bushing 5 is convexly equipped with load interconnecting piece 4114, loads the projection direction of interconnecting piece 4114 and the first U-shaped card
The direction of two vertical edges of block 411 is tilted a certain angle, and is plane towards the face in 2 direction of the second load maintainer, is opened up in plane
There is connection through-hole 4115, is used for the connection of the first fixture block 411 and the first load bar 11.The structure of first fixture block 411 can ensure
While the connective stability of second load maintainer 2 and the first fixture block 411, reduce the size and weight of the first fixture block 411, to
Reduce the size and weight of whole device.
Fig. 8 is the structural schematic diagram of the second fixture block 412 provided in this embodiment, as shown in figure 8,412 direction of the second fixture block
The one side of resilient bushing 5 has the second arcwall face 4121 to match with 7 outer diameter radian of General sleeve, the both ends of the second arcwall face 4121
It is both provided with connection convex block 4122.When the first fixture block 411 is connect with the first fixture block 411, the first arcwall face 4111 and the second arc
Shape face 4121 is connect with the major diameter fit of General sleeve 7, to realize the fixation to 7 radial direction of General sleeve；The company of first fixture block 411
It connects groove 4112 and matches clamping with the connection convex block 4122 of the second fixture block 412, and using the connection that is screwed, to prevent from testing
In the process, 412 opposite loosening of the first fixture block 411 and the second fixture block, causes the stress variation of resilient bushing 5, to influence to test
As a result accuracy.The setting of first fixture block 411 and the second fixture block 412 can be such that 42 relative resilient bushing 5 of the second link block tears open
It unloads conveniently, and easy to process, wherein the connection of the first fixture block 411 and the second fixture block 412 and fixed form can also be used except upper
State the other modes other than mode.
Three axis resilient bushing fatigue tester provided in this embodiment, by the first load maintainer 1 to 5 outer steel of resilient bushing
Circle apply with 5 central shaft of resilient bushing inclination axial force in a certain angle, by the second loading structure to 5 outer steel of resilient bushing
Circle apply with the radial inclined radial power in a certain angle of resilient bushing 5 and by third load maintainer 3 into resilient bushing 5 steel
Circle applies the twisting resistance reversed around central shaft, can simulate the stress of resilient bushing 5 and the axial direction and/or diameter of resilient bushing 5
To deviate when, the performance of resilient bushing 5, make the resilient bushing 5 of the stress of resilient bushing 5, especially automobile torsion beam etc. by
Power operating mode makes the result better authenticity and reliability of simulation, preferably closer to the force status under practical work state
Realize the simulation test of road spectrum, functional；By change General sleeve 7 internal diameter, can not change fatigue tester its
In the case of his structure, the resilient bushing 5 of different model and size is tested, it is versatile；By the way that the first fixture block is arranged
411, the second fixture block 412, U-shaped connecting rod group 43 and U-shaped second link block 42 can be such that the first load maintainer 1 and second loads
The loading force of mechanism 2 deviates resilient bushing 5 axially and radially, also makes the installation and removal of entire fatigue tester convenient.This
5 fatigue tester of resilient bushing that utility model provides has simple in structure, safe and reliable, functional, versatility high and accurate
The advantages that exactness is good.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious variation is readjusted and is substituted without departing from the scope of protection of the utility model.Therefore, although passing through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
Can also include other more equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Right determine.
Claims (10)
1. a kind of three axis resilient bushing fatigue testers, which is characterized in that including：
Connection component (4) comprising the first link block (41) and the second link block (42), first link block (41) and described
Second link block (42) is respectively used to connect with the outer rim of resilient bushing (5) and interior steel ring；
First load maintainer (1) comprising the first load bar (11) and driving the first load bar (11) straight reciprocating motion
The first driving mechanism (12), first load bar (11) connect with first link block (41), first load bar
(11) it is in predetermined acute angle with the central shaft of the resilient bushing (5)；
Second load maintainer (2) comprising the second load bar (21) and driving the second load bar (21) straight reciprocating motion
The second driving mechanism (22), second load bar (21) connect with first link block (41), second load bar
(21) vertical with the first load bar (11)；
Third load maintainer (3) connect with second link block (42), and can drive the interior steel of the resilient bushing (5)
Circle is reversed around central shaft.
2. three axis resilient bushing fatigue tester according to claim 1, which is characterized in that second link block (42)
To be U-shaped, the U-shaped both ends of second link block (42) are connected by connecting rod (421), the interior steel ring of the resilient bushing (5)
Fixing sleeve is set in the connecting rod (421).
3. three axis resilient bushing fatigue tester according to claim 2, which is characterized in that second link block (42)
U-shaped both ends be also respectively connected the first torsion claw (31) and second torsion claw (34), it is described first torsion claw (31)
It is conllinear with first load bar (11) with the central shaft of the second torsion claw (34).
4. three axis resilient bushing fatigue tester according to claim 3, which is characterized in that the third load maintainer
(3) include the torsion actuator (32) for driving the first torsion claw (31) to be reversed around central shaft.
5. three axis resilient bushing fatigue tester according to claim 4, which is characterized in that the torsion actuator (32)
Including the deflection arm (321), connection swing rod (322) and third driving mechanism (323) being rotatablely connected successively, the deflection arm
(321) one end for being not connected with the connection swing rod (322) is fixedly connected with the first torsion claw (31).
6. three axis resilient bushing fatigue tester according to claim 1, which is characterized in that first load bar (11)
It is adopted between first driving mechanism (12) and between second load bar (21) and second driving mechanism (22)
It is connected with oscillating bearing.
7. three axis resilient bushing fatigue tester according to claim 1, which is characterized in that first link block (41)
Including the first fixture block (411) and the second fixture block (412), first fixture block (411) be connected with second fixture block (412) and
The outer steel sleeve of the radially clamping resilient bushing (5) of the outer steel sleeve of the resilient bushing (5).
8. three axis resilient bushing fatigue tester according to claim 7, which is characterized in that first fixture block (411)
It is connect with second load bar (21), first fixture block (411) tilts convex close to one end of second load bar (21)
Equipped with load interconnecting piece (4114), one end end face of load interconnecting piece (4114) towards second load bar (21) is vertical
In second load bar (21).
9. three axis resilient bushing fatigue tester according to claim 1, which is characterized in that the connection component (4) is also
Including U-shaped connecting rod group (43), the both ends of the U-shaped connecting rod group (43) are connected to first link block (41) along perpendicular
Histogram to both sides, first load bar (11) is connected to the middle section of the U-shaped connecting rod group (43).
10. three axis resilient bushing fatigue tester according to claim 1, which is characterized in that the resilient bushing (5)
Outer rim is arranged with General sleeve (7), and first link block (41) is sheathed on the General sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721866437.9U CN207850664U (en) | 2017-12-27 | 2017-12-27 | A kind of three axis resilient bushing fatigue testers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721866437.9U CN207850664U (en) | 2017-12-27 | 2017-12-27 | A kind of three axis resilient bushing fatigue testers |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907322A (en) * | 2017-12-27 | 2018-04-13 | 上海精智实业股份有限公司 | A kind of three axis resilient bushing fatigue testers |
| CN109269886A (en) * | 2018-09-28 | 2019-01-25 | 西安力创材料检测技术有限公司 | A kind of sound device for testing stiffness of engine mounting bushing three-dimensional load |
| CN109720601A (en) * | 2019-01-19 | 2019-05-07 | 北京工业大学 | A kind of aircraft full size structure part multiaxle fatigue experimental device |
-
2017
- 2017-12-27 CN CN201721866437.9U patent/CN207850664U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907322A (en) * | 2017-12-27 | 2018-04-13 | 上海精智实业股份有限公司 | A kind of three axis resilient bushing fatigue testers |
| CN107907322B (en) * | 2017-12-27 | 2024-04-09 | 上海精智实业股份有限公司 | Triaxial elastic bushing fatigue testing machine |
| CN109269886A (en) * | 2018-09-28 | 2019-01-25 | 西安力创材料检测技术有限公司 | A kind of sound device for testing stiffness of engine mounting bushing three-dimensional load |
| CN109269886B (en) * | 2018-09-28 | 2024-02-23 | 西安力创材料检测技术有限公司 | Dynamic and static rigidity testing device for three-way loading of engine suspension bushing |
| CN109720601A (en) * | 2019-01-19 | 2019-05-07 | 北京工业大学 | A kind of aircraft full size structure part multiaxle fatigue experimental device |
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