CN208171777U - A kind of swing fatigue under scrubbing testing machine - Google Patents

Abstract

The utility model discloses a kind of swing fatigue under scrubbing testing machines, including testing machine frame, testing machine frame includes horizontally disposed weighted platform, weighted platform is equipped with the first load carrier to carry sample, test machine frame is additionally provided with swing mechanism, swing mechanism is connected with swing-bar mechanism, swing-bar mechanism lower part is connected with friction portion and is able to drive the rotation of friction portion with the sample on the first load carrier that rubs, and testing machine frame further includes that can push the mobile elevating mechanism to change load between the first load carrier and friction portion of weighted platform.Swing fatigue under scrubbing testing machine provided by the utility model can push swing-bar mechanism to swing by swing mechanism, and then drive the friction portion rotation of swing-bar mechanism lower part, the sample to rub on the first load carrier, the fatigue under scrubbing of test sample, the force-bearing situation of sample is similar with the force-bearing situation in real work during test, can significantly improve the accuracy of test.

Description

A kind of swing fatigue under scrubbing testing machine

Technical field

The utility model relates to test equipment technical field, in particular to a kind of swing fatigue under scrubbing testing machine.

Background technique

Selflubricating liner is made of the lower material of coefficient of friction, is generally disposed at the guiding mechanism of oscillating bearing, guided missile And in some other rotatable parts, play the role of reducing friction elongate member service life, the performance of selflubricating liner is The performance of an important factor for influencing such rotatable parts service life, selflubricating liner usually are tested to obtain by testing machine.

The service life that accurately test selflubricating liner will further investigate the forms of motion of such rotatable parts.To close For bearings, oscillating bearing is a kind of spherical bearing, can be realized the rotation of any direction, oscillating bearing is by having interior ball The outer ring in face and inner ring with spherical outside surface are constituted, and there are sliding friction, self-lubricating linings between outer ring and inner ring during rotation Pad is set between inner ring and outer ring.The common movement of oscillating bearing has swing, rotation and banking motion etc., carries in joint shaft In dynamic process, selflubricating liner is usually damaged because of unbalance stress, the movement shape of other rotatable parts and oscillating bearing Formula is similar.

Testing machine in the prior art passes through the movement of rotary simulation oscillating bearing mostly, its shortcoming is that selflubricating liner It is acted on, is not inconsistent with the stress of selflubricating liner in actual use, and then cause by uniform frictional force during the test Test result inaccuracy.

Therefore, how to improve the accuracy of testing machine test result is that those skilled in the art need the technology solved to ask Topic.

Utility model content

The purpose of the utility model is to provide a kind of swing fatigue under scrubbing testing machines, and can simulate selflubricating liner makes With force-bearing situation in the process, test result accuracy height.

To achieve the above object, the utility model provides a kind of swing fatigue under scrubbing testing machine, including test machine frame, institute Stating test machine frame includes horizontally disposed weighted platform, and the weighted platform is equipped with the first carrying machine to carry sample Structure, the test machine frame are additionally provided with swing mechanism, and the swing mechanism is connected with swing-bar mechanism, and the swing-bar mechanism lower part connects There is friction portion and is able to drive the friction portion rotation with the sample on first load carrier that rubs, the test machine frame Frame further includes that can push the weighted platform mobile to change load between first load carrier and the friction portion Elevating mechanism.

Preferably, the friction portion has a spherical surface to friction sample, first load carrier be equipped with to institute The first cavity of mating spherical surfaces is stated, sample is placed in first cavity.

Preferably, the test machine frame is additionally provided with upper end workbench, and the upper end workbench is equipped with the second load carrier, Second load carrier has the second cavity for being directed downward, and the friction part is in first load carrier and described the Between two load carriers.

Preferably, the test machine frame is equipped with column along the vertical direction, and the upper end workbench is fixed on the column Top, the weighted platform are slidably connected with the column.

Preferably, the swing mechanism includes oscillating rod, telescoping mechanism and rotating bracket,

The telescoping mechanism and the testing machine frame articulation, the telescopic end of the telescoping mechanism and the rotating bracket are cut with scissors It connects；

The rotating bracket is also hinged with the test machine frame and the oscillating rod respectively；

One end of the oscillating rod is connected with the swing-bar mechanism by oscillating bearing, the other end of the oscillating rod and institute State rotating bracket it is hinged by swinging end Bearning mechanism, so that the oscillating rod can rotate in perpendicular, the swing Rotation section dress is additionally provided between end bearing mechanism and the rotating bracket, the rotation section dress can make the oscillating rod around itself and institute State the tie point rotation of rotating bracket；

The test machine frame be equipped with two sets of swing mechanisms, the oscillating rod of two sets of swing mechanisms with the pendulum Linkage is connected, and has predetermined angle between two oscillating rods.

Preferably, the swinging end Bearning mechanism includes first end and second end, and the first end and the oscillating rod connect It connects, the second end and rotation section dress are hinged.

Preferably, rotation section dress includes that the portion of Y type fills ontology, and portion's dress body upper part is equipped with to described the The hinged hinge hole in two ends, portion's dress body lower part is cylindrical, and portion's dress body peripheral, which is equipped with to rotate, holds seat, and described turn It is dynamic to hold seat and be fixedly connected with the rotating bracket.

Preferably, the axial load to measure sample load is equipped between the weighted platform and the elevating mechanism to pass Sensor, axial load sensor top are equipped with axial sensor terminal pad, and the axial sensor terminal pad passes through taper Loading disc supports the weighted platform.

Preferably, swinging load sensor, the swinging load sensing are equipped between the oscillating rod and the rotating bracket Device is connected with by oscillation gauge terminal pad with the swinging end Bearning mechanism.

Preferably, further include be connected with the telescoping mechanism and the elevating mechanism, to Control Assay load and The control device of weave mode.

The fatigue under scrubbing testing machine provided by the utility model that swings passes through the outer of the first load carrier simulation oscillating bearing Circle simulates the inner ring of oscillating bearing by friction portion, and sample is set on the first load carrier, is carried out by friction portion to sample Friction, lifting unit adjusts the height of weighted platform, and then adjusts size loaded on sample.

Swing mechanism pushes the movement of friction portion rotation simulation oscillating bearing, the process of friction portion rotation by swing-bar mechanism It is similar to the actual motion process of oscillating bearing, it also include swing, rotation and banking motion etc..During the test, friction portion It is more concentrated with stress at some contacts of the first load carrier, this is identical as the stress condition of sample in actual operation, Ensure that the test result of sample is accurate and reliable.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer.

Fig. 1 is the structural schematic diagram provided by the utility model for swinging fatigue under scrubbing testing machine；

Fig. 2 is the side view provided by the utility model for swinging fatigue under scrubbing testing machine；

Fig. 3 is the top view provided by the utility model for swinging fatigue under scrubbing testing machine；

Fig. 4 is the structural schematic diagram in friction portion in Fig. 1；

Fig. 5 is the structural schematic diagram of weighted platform in Fig. 1；

Fig. 6 is the structural schematic diagram of swing-bar mechanism in Fig. 1；

Fig. 7 is the structural schematic diagram of swinging end Bearning mechanism in Fig. 1；

Fig. 8 is the cross-sectional view of swinging end Bearning mechanism connection ring in Fig. 1；

Fig. 9 is the structural schematic diagram of rotation section dress in Fig. 1；

Figure 10 is the structural schematic diagram of Fig. 1 transfer bearing housing.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In order to make those skilled in the art more fully understand the utility model, with reference to the accompanying drawing and specifically The utility model is described in further detail for embodiment.

Fig. 1 to Figure 10 is please referred to, Fig. 1 is the structural representation provided by the utility model for swinging fatigue under scrubbing testing machine Figure；Fig. 2 is the side view provided by the utility model for swinging fatigue under scrubbing testing machine；Fig. 3 is provided by the utility model Swing the top view of fatigue under scrubbing testing machine；Fig. 4 is the structural schematic diagram in friction portion in Fig. 1；Fig. 5 is weighted platform in Fig. 1 Structural schematic diagram；Fig. 6 is the structural schematic diagram of swing-bar mechanism in Fig. 1；Fig. 7 is the structural representation of swinging end Bearning mechanism in Fig. 1 Figure；Fig. 8 is the cross-sectional view of swinging end Bearning mechanism connection ring in Fig. 1；Fig. 9 is the structural schematic diagram of rotation section dress in Fig. 1；Figure 10 For the structural schematic diagram of Fig. 1 transfer bearing housing.

Swing fatigue under scrubbing testing machine provided by the utility model includes test machine frame 1, as shown in Figure 1 to Figure 3, examination It tests machine frame 1 and is equipped with weighted platform 2 and swing mechanism 3, sample is fixed on the first load carrier of weighted platform 2 in test process On 21；Swing mechanism 3 is connected with swing-bar mechanism 4, and 4 lower part of swing-bar mechanism is connected with friction portion 5, friction portion 5 and sample contacts, swings Mechanism 3 is rotated by swing-bar mechanism 4 with dynamic friction portion 5, and the sample on first load carrier 21 of the friction of friction portion 5, testing machine are made Frame 1 is additionally provided with elevating mechanism 22, and elevating mechanism 22 can push weighted platform 2 mobile, to change the first load carrier 21 The load that sample between friction portion 5 is born.

First load carrier 21 can fit with friction portion 5, to apply load, 21 mould of the first load carrier to sample The outer ring of pseudarthrosis bearing, the inner ring of oscillating bearing is simulated in friction portion 5, as shown in figure 4, friction portion 5 can be in spherical or outer surface With spherical surface 51, the first load carrier 21 has the first cavity 210, and the first cavity 210 has the Internal Spherical Surface cooperated with spherical surface 51, The first load carrier 21 can apply the component of horizontal direction to friction portion 5 during friction portion 5 moves, and make friction portion 5 It only rotates without the translation of horizontal direction.

Friction portion 5 can be connected with swing-bar mechanism 4 by modes such as welding, pin joint or threaded connections, since sample is in difference Service life in the oscillating bearing of size often differs larger, and the fatigue under scrubbing of sample is needed for various sizes of joint shaft It holds and is tested, so swinging fatigue under scrubbing testing machine needs replacing various sizes of friction portion 5.In order to facilitate replacement, friction It is mostly used between portion 5 and swing-bar mechanism 4 and dismountable connection type such as is threadedly coupled.Specifically, mounting hole is equipped in friction portion 5, Mounting hole has internal screw thread, and 4 lower part of swing-bar mechanism has external screw thread, is attached by internal and external threads mutual cooperation；Obviously it is It matching with friction portion 5, various sizes of first load carrier 21 can also be installed by swinging fatigue under scrubbing testing machine, therefore the One load carrier 21 is also generallyd use with weighted platform 2 dismountable connection type such as is bolted.

Swing-bar mechanism 4 is arranged along the vertical direction, and friction portion 5 is installed on the lower part of swing-bar mechanism 4, and swing mechanism 3 can push away Movable pendulum linkage 4 is swung, and then rotates swing-bar mechanism 4 in the first load carrier 21 with dynamic friction portion 5, it is clear that swing-bar mechanism 4 be the centre of sphere swing around the spherical surface 51 that rubs.Swing mechanism 3 is connected with the top of swing-bar mechanism 4, in the process of movement oscillating machine Angle between structure 3 and swing-bar mechanism 4 constantly changes, therefore swing mechanism 3 can be connected with swing-bar mechanism 4 by oscillating bearing.

Swing mechanism 3 needs to push swing-bar mechanism 4 with Y direction along the x axis, and swinging fatigue under scrubbing testing machine can pass through Individual swing mechanism 3 pushes swing-bar mechanism 4, and swing mechanism 3 may include tilting member and extensible member at this time, pass through swing part Part pushes swing-bar mechanism 4 to generate the movement of X-direction, and the movement of the generation Y direction of swing-bar mechanism 4 is pushed by extensible member, Tilting member can be specially hydraulic swing motor, and extensible member can be specially hydraulic cylinder；Swinging fatigue under scrubbing testing machine can be with Swing-bar mechanism 4 is pushed from both direction respectively by two sets of swing-bar mechanisms 4, oscillating bearing is simulated in the superposition moved by the two The forms of motion of the component of inner ring connection in actual operation, specific swing-bar mechanism 4 may include two hydraulic cylinders, respectively from X Axis direction and Y direction push swing-bar mechanism 4.Certain user can also select the swing mechanism 3 of other structures as needed, herein Without limitation.

Elevating mechanism 22 can push weighted platform 2 to move up and down, while the first load carrier 21 being driven to move up and down, into And changing the load that sample is born, elevating mechanism 22 can be specially axially loaded oil cylinder, and axially loaded oil cylinder is along the vertical direction Setting, piston are fixedly connected with weighted platform 2, and piston will drive weighted platform 2 when flexible and move up and down, and certain user can also To use cylinder or electric telescopic rod as elevating mechanism 22 as needed, it is not limited here.

In the present embodiment, swings fatigue under scrubbing testing machine and be equipped with swing mechanism 3, swing mechanism 3 is pushed by swing-bar mechanism 4 The sample that friction portion 5 rubs on the first load carrier 21 is tested the fatigue under scrubbing of selflubricating liner sample, is swung in test process Fatigue under scrubbing testing machine can simulate force-bearing situation of the oscillating bearing in practical work process, keep test result more accurate； In addition it is all made of between friction portion 5 and swing-bar mechanism 4 and between the first load carrier 21 and weighted platform 2 and removably connects Mode is connect, friction portion 5 and the first load carrier 21 are convenient for changing, enables to swing fatigue under scrubbing testing machine test sample in difference Service life in the oscillating bearing of size.

To improve testing efficiency, also upper end workbench 6, upper end work can be arranged in the top in friction portion 5 in test machine frame 1 Platform 6 is equipped with the second load carrier 61, and the second load carrier 61 has the second cavity 610 being directed downward, and the second cavity 610 also has There is the Internal Spherical Surface with the cooperation of the spherical surface 51 in friction portion 5, sample can be fixed in the second cavity 610 by the modes such as pasting, rub Portion 5, when friction portion 5 rotates, can rub simultaneously and first hold between the first load carrier 21 and the second load carrier 61 Sample in mounted mechanism 21 and the second load carrier 61.

Upper end workbench 6 and the second load carrier 61 are equipped with the through-hole in impenetrating thickness direction, as shown in figure 3, through-hole Axis passes through the centre of sphere of spherical surface 51, and swing-bar mechanism 4 passes through through-hole and is connected with friction portion 5, is equipped between through-hole and swing-bar mechanism 4 reserved Gap avoids swing-bar mechanism 4 from colliding during swing with through-hole side wall, the also settable corrugated bushing in through-hole periphery 62, the lower end of corrugated bushing 62 is connected with upper end workbench 6, and upper end is connected with swing-bar mechanism 4, and corrugated bushing 62 can play The effects of absorbing impact force, dust avoided to fall into swing-bar mechanism 4.Since oscillating bearing also is provided with through axial via hole, second Load carrier 61 be arranged through-hole will not influence test as a result, certain first load carrier 21 may also set up same through-hole.

Test machine frame 1 be equipped with column 7, by column 7 support upper end workbench 6, the quantity of column 7 be usually two or Two or more, weighted platform 2 can slide up and down between column 7 under the promotion of elevating mechanism 22 along column 7.

The top of column 7 has the step surface of direction upward, and upper end workbench 6 has peace corresponding with 7 position of column The periphery of dress hole, step surface and mounting hole offsets, and 7 upper end of column is additionally provided with the position of the fixed upper end workbench 6 of column locknut 71； Weighted platform 2 includes load plate, and load plate is equipped with the interconnecting piece 23 of tubular, and interconnecting piece 23 includes tubular body 231, tubular body 231 are sheathed on the periphery of column 7, and the inside side wall of interconnecting piece 23 is equipped with self-lubricating bearing 232 and reduces between interconnecting piece 23 and column 7 Frictional resistance, self-lubricating bearing 232 is fixed in interconnecting piece 23 by interconnecting piece bearing gland 233.

In the present embodiment, test machine frame 1 is additionally provided with upper end workbench 6, and upper end workbench 6 is equipped with 610 court of the second cavity Under the second load carrier 61, swing fatigue under scrubbing testing machine two parts of samples can once be tested, can greatly mention High testing efficiency, upper end workbench 6 is supported by column 7, while column 7 is slidably connected with weighted platform 2, and column 7 can be right Weighted platform 2 is limited, and keeps holding during moving up and down of weighted platform 2 horizontal, and then guarantee to be applied on sample Uniform load distribution.

Oscillating bearing forms of motion in different equipment is different, the influence that the forms of motion of oscillating bearing wears sample It is larger.To enable swing fatigue under scrubbing testing machine to simulate the various forms of motion of oscillating bearing, friction is swung in the present embodiment Fatigue tester is equipped with two sets of swing mechanisms 3, and swing mechanism 3 includes oscillating rod 33, telescoping mechanism 31 and rotating bracket 32, turns Dynamic bracket 32 is hinged with oscillating rod 33, telescoping mechanism 31 and test machine frame 1 respectively, and telescoping mechanism 31 pushes rotating bracket 32 It is rotated around the hinge joint of itself and test machine frame 1, oscillating rod 33 is horizontally disposed, energy during rotating bracket 32 rotates Enough telescoping mechanism 31 is pushed to move in the horizontal direction；The oscillating rod 33 of two sets of swing mechanisms 3 is connected with swing-bar mechanism 4, and two There is predetermined angle, moving horizontally for two oscillating rods 33 is superimposed to form various forms of motion between oscillating rod 33.

One end of oscillating rod 33 is connected with swing-bar mechanism 4 by oscillating bearing 42, as shown in fig. 6, the top of swing-bar mechanism 4 If there are two ball hinges 41, two ball hinges 41 are connected with the oscillating rod 33 of two sets of swing mechanisms 3 respectively, specifically, ball hinge Oscillating bearing 42 is set between 41 and swing-bar mechanism 4, and ball hinge 41 and the outer ring of oscillating bearing 42 are fixed, swing-bar mechanism 4 and joint The inner ring of bearing 42 is fixed, and ball hinge 41 can be rotated relative to swing-bar mechanism 4, and the upper end of swing-bar mechanism is equipped with bearing locking nut 43. There is predetermined angle between the oscillating rod 33 of two sets of swing mechanisms 3, test machine frame 1 is cuboid framework 1 in the present embodiment, two Set swing mechanism 3 is located at two adjacent sides of test machine frame 1, and oscillating rod 33 is stretched to from the side of test machine frame 1 The swing-bar mechanism 4 in the center of machine frame 1 is tested, the predetermined angle between two oscillating rods 33 is 90 °, and certain predetermined angle can also be it His numerical value, it is not limited here.

The other end of oscillating rod 33 is connect with swinging end Bearning mechanism 34, and swinging end Bearning mechanism 34 can make oscillating rod 33 It can swing in perpendicular, rotation section is additionally provided between swinging end Bearning mechanism 34 and rotating bracket 32 and fills 35, rotation section dress 35 can be such that oscillating rod 33 rotates in horizontal plane around oscillating rod 33 and the tie point of rotating bracket 32.

The structure of swinging end Bearning mechanism 34 is as shown in Figure 7 and Figure 8, including first end 343 and second end 344, first end The modes such as 343 is plate-like, and first end 343 can be bolted or weld with oscillating rod 33 are connect；Second end 344 is connection Ring, connection ring are arranged along the vertical direction, and angular contact bearing 3441, connecting shaft 36 and angular contact bearing 3441 are provided in connection ring Inner ring fix, so that oscillating rod 33 be enable to rotate around the axis of angular contact bearing 3441, be also provided with axle sleeve in connection ring 3442 and the fixed angular contact bearing 3441 of swinging end bearing gland 3443 position.

Rotation section fills 35 structure as shown in figure 9, including portion's dress ontology 351 of Y type, portion fills two of 351 top of ontology Branch is equipped with hinge hole, and Liang Ge branch is inserted into the two sides of connection ring, connecting shaft 36 be inserted into two connecting holes and with connection The inner ring of ring middle (center) bearing is fixed, and the portion of making fills ontology 351 and swinging end Bearning mechanism 34 is hinged, and it is in cylinder that portion, which fills 351 lower part of ontology, Shape, portion dress 351 periphery of ontology are equipped with rotation and hold seat 352, and settable taper roller axis between seat 352 is held in portion's dress ontology 351 and rotation 353 are held, dress ontology 351 in the middle part of rotation process is reduced and rotates the friction held between seat 352, seat 352 and rotating bracket are held in rotation 32 are fixedly connected.Portion's dress ontology 351 can hold the rotation of seat 352 relative to rotation, to make to fill the swing that ontology 351 is connected with portion Bar 33 can be swung in the horizontal direction relative to rotating bracket 32.

Rotating bracket 32 is the plate structure of triangle, and plate face is arranged along the vertical direction, three apex angles respectively with rotation Portion fills 35, telescoping mechanism 31 and test machine frame 1 is connected, and as described above, the fixed company of seat 352 is held in rotating bracket 32 and rotation It connects, specifically, a plurality of dowel can be set in the plate face of rotating bracket 32, seat 352 etc. is held by dowel and rotation and is fixed；Examination Testing machine frame 1 also has lower end workbench 8, and column 7 described above is fixed on the upper surface of lower end workbench 8, lower end work The side of 8 upper surface of platform is additionally provided with carrier base 81, and the top of carrier base 81 is fixed with shaft bearing seat 811, shaft bearing seat 811 Structure it is as shown in Figure 10, shaft bearing seat 811 has perforative bearing hole in the horizontal direction, is mounted with deep-groove ball in bearing hole Bearing 812, the inner ring that shaft 82 passes through bearing hole and deep groove ball bearing 812 are fixed, and the cross section of 82 both side ends of shaft is in square Shape, two adjacent sides of 82 side of shaft pass through bolt and the dowel of rotating bracket 32 is fixed；Telescoping mechanism 31 can have Body is cylinder or hydraulic cylinder etc., and cylinder sleeve and test machine frame 1 are hinged, and piston and rotating bracket 32 are hinged, and articulated manner can join The prior art is examined, details are not described herein.The other shapes outside triangle also can be selected in rotating bracket 32, it is not limited here.

In the present embodiment, swing mechanism 3 includes oscillating rod 33, rotating bracket 32 and telescoping mechanism 31,31 energy of telescoping mechanism 82 rotation around the shaft of rotating bracket 32 is enough pushed, and then oscillating rod 33 is pushed to be axially moveable.Fatigue under scrubbing testing machine is swung to set There are two sets of swing mechanisms 3, the motion profile of two sets of swing mechanisms 3 superposition can simulate the actual working condition of oscillating bearing, put The movement of motivation structure 3 can be controlled by telescoping mechanism 31.During two sets of movement superpositions of swing mechanism 3, oscillating rod 33 The swing in horizontal and vertical direction can be generated, swinging end Bearning mechanism 34 and rotation are provided between oscillating rod 33 and rotating bracket 32 Portion fills 35, and oscillating rod 33 is enable flexibly to swing, and reduces the stress and friction between oscillating rod 33 and rotating bracket 32.

Top for the load that detection sample is born, axially loaded oil cylinder piston is provided with axial load sensor 221, 221 top of axial load sensor is equipped with axial sensor terminal pad 222, and axial sensor terminal pad 222 is loaded by taper 223 supporting loading platform 2 of disk, when the piston of axially loaded oil cylinder stretches out, axial load sensor 221 is able to detect that piston With the pressure between weighted platform 2, to obtain axial load suffered by sample.

It swings fatigue under scrubbing testing machine and is provided with swinging load sensor also between oscillating rod 33 and rotating bracket 32 341, swinging load sensor 341 and oscillating rod 33 are fixed, and pass through oscillation gauge terminal pad 342 and oscillation bearing mechanism First end 344 is fixed, and when oscillating rod 33 generates axial movement, swinging load sensor 341 is able to detect that swing-bar mechanism 4 is put The load born when dynamic.

Swinging fatigue under scrubbing testing machine further includes control device, control device and axial load sensor 221, swinging load Sensor 341, telescoping mechanism 31 and elevating mechanism 22 are connected, and control device can judge sample according to the measured value of sensor The size of born load, and the load of sample born is changed by telescoping mechanism 31 and elevating mechanism 22 or changes friction The motor pattern in portion 5.Control device can MCU controller, single-chip microcontroller or microcomputer, concrete function and structure can refer to existing There is technology, details are not described herein.

In the present embodiment, swings fatigue under scrubbing testing machine and pass through axial load sensor 221 and swinging load sensor 341 The load that measurement sample is born, control device is capable of the measurement result of receiving sensor, and passes through telescoping mechanism 31 and lifting Mechanism 22 changes the load that sample is born, and the motor pattern in control friction portion 5, accomplishes swing fatigue under scrubbing testing machine The parameters such as real-time detection load, friction torque, coefficient of friction, abrasion loss, swing angle, speed react sample to objective reality Comprehensive performance under applying working condition.

It is test selflubricating liner in high temperature or low in addition, oscillating bearing also often works in high temperature or low temperature environment Service life in warm environment, test machine frame 1 are also provided with enclosure space.Specifically, the quantity of column 7 is four, and it is in For distributed rectangular in 5 surrounding of friction portion, four sides between lower end workbench 8 and upper end workbench 6 are provided with side wall, upper end Space between workbench 6, lower end workbench 8 and side wall is enclosure space, the settable heating device of enclosure space or cooling Device is to change the temperature in enclosure space, and heating device can refer to electric heater etc., and cooling device can refer to air conditioner etc..

It in the present embodiment, swings fatigue under scrubbing testing machine and is equipped with enclosure space, by the temperature simulation for changing enclosure space Selflubricating liner works in high temperature or low temperature environment, to test service life of the selflubricating liner in extreme environment.

It should be noted that in the present specification, such as first and second etc relational terms are used merely to one Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual Relationship or sequence.

Swing fatigue under scrubbing testing machine provided by the utility model is described in detail above.It is used herein Specific case is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to manage Solve the method and its core concept of the utility model.It should be pointed out that for those skilled in the art, not Under the premise of being detached from the utility model principle, several improvements and modifications can be made to this utility model, these improve and repair Decorations are also fallen into the protection scope of the utility model claims.

Claims (10)

1. a kind of swing fatigue under scrubbing testing machine, which is characterized in that including testing machine frame (1), test machine frame (1) packet It includes horizontally disposed weighted platform (2), the weighted platform (2) is equipped with the first load carrier (21) to carry sample, institute It states test machine frame (1) to be additionally provided with swing mechanism (3), the swing mechanism (3) is connected with swing-bar mechanism (4), the rocker mechanism Structure (4) lower part is connected with friction portion (5) and is able to drive friction portion (5) rotation with first load carrier (21) of rubbing On sample, the test machine frame (1) further includes that the weighted platform (2) can be pushed mobile to change first carrying The elevating mechanism (22) of load between mechanism (21) and the friction portion (5).

2. swing fatigue under scrubbing testing machine according to claim 1, which is characterized in that the friction portion (5) have to The spherical surface (51) of friction sample, first load carrier (21) are equipped with the first cavity to cooperate with the spherical surface (51) (210), sample is placed in first cavity (210).

3. swing fatigue under scrubbing testing machine according to claim 2, which is characterized in that the test machine frame (1) also sets Have upper end workbench (6), the upper end workbench (6) is equipped with the second load carrier (61), the second load carrier (61) tool There is the second cavity (610) being directed downward, the friction portion (5) is located at first load carrier (21) and second carrying Between mechanism (61).

4. swing fatigue under scrubbing testing machine according to claim 3, which is characterized in that the test machine frame (1) is along perpendicular For histogram to column (7) are equipped with, the upper end workbench (6) is fixed on the column (7) top, the weighted platform (2) and institute Column (7) is stated to be slidably connected.

5. swing fatigue under scrubbing testing machine according to any one of claims 1 to 4, which is characterized in that the oscillating machine Structure (3) includes oscillating rod (33), telescoping mechanism (31) and rotating bracket (32),

The telescoping mechanism (31) and the test machine frame (1) hingedly, the telescopic end of the telescoping mechanism (31) and described turn Dynamic bracket (32) are hinged；

The rotating bracket (32) is also hinged with the test machine frame (1) and the oscillating rod (33) respectively；

One end of the oscillating rod (33) is connected with the swing-bar mechanism (4) by oscillating bearing, the oscillating rod (33) it is another One end and the rotating bracket (32) are hinged by swinging end Bearning mechanism (34), so that the oscillating rod (33) can be vertical Rotation in surface is additionally provided with rotation section dress (35), the rotation between the swinging end Bearning mechanism (34) and the rotating bracket Portion's dress (35) can be such that the oscillating rod (33) rotates around the tie point of itself and the rotating bracket (32)；

The test machine frame (1) is equipped with two sets of swing mechanisms (3), the oscillating rod (33) of two sets of swing mechanisms (3) It is connected with the swing-bar mechanism (4), there is predetermined angle between two oscillating rods (33).

6. swing fatigue under scrubbing testing machine according to claim 5, which is characterized in that the swinging end Bearning mechanism (34) Including first end (343) and second end (344), the first end (343) connect with the oscillating rod (33), the second end (344) hinged with rotation section dress (35).

7. swing fatigue under scrubbing testing machine according to claim 6, which is characterized in that the rotation section dress (35) includes Y The portion of type fills ontology (351), and portion's dress ontology (351) top is equipped with to the hinge hole hinged with the second end (344), Portion's dress ontology (351) lower part is cylindrical, and portion's dress ontology (351) periphery is equipped with rotation and holds seat (352), the rotation Seat (352) is held to be fixedly connected with the rotating bracket (32).

8. swing fatigue under scrubbing testing machine according to claim 7, which is characterized in that the weighted platform (2) with it is described The axial load sensor (221) to measure sample load, the axial load sensor are equipped between elevating mechanism (22) (221) top is equipped with axial sensor terminal pad (222), and the axial sensor terminal pad (222) passes through taper loading disc (223) weighted platform (2) is supported.

9. swing fatigue under scrubbing testing machine according to claim 8, which is characterized in that the oscillating rod (33) and described turn Swinging load sensor (341) are equipped between dynamic bracket (32), the swinging load sensor (341) connects with by oscillation gauge Disk (342) is connect to be connected with the swinging end Bearning mechanism (34).

10. swing fatigue under scrubbing testing machine according to claim 9, which is characterized in that further include and the telescoping mechanism (31) it is connected with the elevating mechanism (22), to the load of Control Assay and the control device of weave mode.