CN208432460U - A kind of reciprocal endurance torsion test device - Google Patents

Abstract

The utility model discloses a kind of reciprocal endurance torsion test devices, are related to testing torsional fatigue field.It further include fixed station, tension mechanism, swing rod, pulley mechanism, lower fall device, cam mechanism and power device including cabinet, fixed station is arranged in top of the box, for fixing workpiece for measurement；Tension mechanism is connect for serving as shaft with workpiece for measurement；Pulley mechanism is symmetricly set at the top of cabinet front；The two lower fall device upper ends in left and right are connected by flexible strand, and flexible strand detours on pulley mechanism；Swing rod one end is fixedly connected with tension mechanism, and the other end is connected in the middle part of flexible strand；Cam mechanism is arranged in cabinet front, and lower fall device lower end is equipped with cam mechanism；Power device is arranged in cabinet.The utility model, which can be realized, applies reversed torsion power to workpiece for measurement core, reaches the weariness working effect of simulation workpiece actual working state, is capable of the reciprocal endurance torsion performance of effective monitoring and evaluation workpiece, and structure is simple, easy to operate.

Description

A kind of reciprocal endurance torsion test device

Technical field

The utility model relates to testing torsional fatigue field, specifically a kind of reciprocal endurance torsion test device.

Background technique

Ferrite is a kind of novel nonmetal magnetic material developed rapidly from the 1940s.With metallic magnetic Property material is compared, and ferrite has many advantages, such as that resistivity is big, dielectric properties are high, the magnetic conductivity with higher in high frequency.With The development of science and technology, ferrite is not only in electronics industries such as communication broadcast, automatic control, computing technique and instrument and meters Using increasingly extensive, have become indispensable component part, and is shown and dirty in space travel, satellite communication, information Dye processing etc., also opens wide application space.In production technology, ferrite is similar to general ceramic process, Easy to operate easily controllable, thin slice is rolled into unlike metallicl magnetic material or fine powder medium is made to apply.Due to iron Oxysome performance is good, at low cost, simple process, can save a large amount of noble metals again, it has also become before having development very much in high frequency light current field A kind of nonmetal magnetic material on way.

Currently, ferrite powder molding, powder metallurgy forming, rare earth form, in the production technologies such as clay molding, in dish type Or in the detection device of wheel shape product, bearing the test equipment of twisting resistance for a long time for product core is still vacancy, therefore raw Quite a few substandard product of output is easily mistaken for being set to qualified product and sell away, these substandard products are in actual (tube) length Between in use process, since long-time bears twisting resistance, the defect of concealment is gradually displayed, is damaged to product itself, In turn result in serious economic loss and personnel safety problem.And these product defects, if in production stage energy quilt It was found that then can effectively avoid subsequent loss, therefore, how to design a reciprocal endurance torsion for these products and test Device is always that those skilled in the art endeavour the technical problem solved.

Through retrieving, Chinese patent, application number: 201710200144.5, data of publication of application: on 06 20th, 2017, open A kind of material torsion and testing torsional fatigue device, including fatigue tester, vacuum dewar container, temperature-controlling system and fixture group Part, clamp assembly includes: the upper connecting flange connecting with the load sensor of fatigue tester, solid with the crossbeam of fatigue tester Surely the upper terminal pad that connects, the upper flange being fixedly connected by upper support bar with upper terminal pad, one end are fixedly connected with upper flange Support tube, the upper support plate being fixedly connected with the other end of support tube is fixedly connected with upper support plate by lower support bar Lower support plate, one end connect the other end with upper connecting flange across upper terminal pad and upper flange and support tube and upper support plate It center-pole, the lower inner support disk being fixedly connected with the other end of center-pole and is respectively connect with lower inner support disk and lower support plate Fixture, vacuum dewar container and upper flange are tightly connected, and sample is located inside vacuum dewar container, and temperature control system is used to control true Temperature in empty Dewar type container provides required environment temperature for sample.The device can be realized any under low temperature, room temperature, high temperature Torsion and torsional fatigue performance test under environment temperature, but reciprocal torsion test can not be done for disk core.

Utility model content

Utility model technical problems to be solved

Still it is vacancy for testing dish type or wheel shape product core in the prior art to bear the equipment of twisting resistance for a long time, leads The problem of causing the defect of product concealment can not be detected, the utility model provides a kind of reciprocal endurance torsion test device, By being equipped with for tension mechanism, swing rod, pulley mechanism, lower fall device and cam mechanism etc., swing rod is driven to swing, And rotating shaft transmission is served as using tension mechanism, it realizes and reversed torsion power is applied to workpiece for measurement core, reach workpiece real work The weariness working effect of state is capable of the reciprocal endurance torsion performance of effective monitoring and evaluation workpiece, and structure is simple, operation side Just.

Technical solution

To solve the above problems, technical solution provided by the utility model are as follows:

A kind of reciprocal endurance torsion test device, including cabinet, further include fixed station, tension mechanism, swing rod, turbine Structure, lower fall device, cam mechanism and power device, the fixed station are arranged in the top of the box, for fixing work to be measured Part；The tension mechanism is connect for serving as shaft with the workpiece for measurement, insertion workpiece for measurement core in one end when test The interior simultaneously tensioner of axis hole, the other end is vertical with the swing rod to be connect；The pulley mechanism is symmetricly set at the top of the cabinet front； The two lower fall device upper ends in left and right are connected by flexible strand, and the flexible strand detours on the pulley mechanism, under described Fall device is tensed the flexible strand by gravity tenesmus；Described swing rod one end is fixedly connected with tension mechanism, and the other end is connected to institute It states in the middle part of flexible strand；The cam mechanism is horizontally set on the cabinet front, the lower fall device lower end and the cam machine Structure is equipped with, and is moved by the cam mechanism, and the lower fall device of two sides is driven to move up and down；The power device is set It sets in the cabinet, for driving the cam mechanism, the power device is that motor or motor and cooperating with it is set The transmission mechanism set is also possible to other devices for being capable of providing power.

Further, in which:

The lower fall device includes connecting rod, guide sleeve and gravity counterweight, and the gravity counterweight is detachably connected on described On connecting rod, the guide sleeve is fixed on the cabinet front, and is slidably socketed on the connecting rod, allows the connecting rod edge The guide sleeve slides up and down；

The cam mechanism includes that driven wheel, main shaft and two cams, the main shaft are mounted on the case by bearing block On front side of body, and in horizontally disposed, the driven wheel and two cams are sequentially fixed on the main shaft, the driven wheel with it is described Power device connection；

The small end is connect with the flexible strand respectively, and lower end is connected respectively with the cam of two sides with higher pair Touching.

Further, the power device includes the motor, speed changer and driving wheel being successively cooperatively connected, the driving wheel It is connect by transmission belt with the driven wheel.When operation, after electric motor starting, revolving speed is too fast, by driving wheel after transmission reduction Output, then passes to driven wheel through transmission belt.

Further, it is provided with limiting groove on the connecting rod, caging bolt is bolted on the guide sleeve, it is described Caging bolt is through the guide sleeve and extend into the limiting groove.

Further, the connecting rod lower end is respectively connected with idler wheel, the connecting rod pass through the idler wheel respectively with two sides The cam is in contact with higher pair.

Further, two cam offset angulars are arranged on the main shaft, so that in two cams with master When axis rotates, the connecting rod of two sides can be alternately jacked up.

Further, the gravity counterweight includes right gravity counterweight and left gravity counterweight, the right gravity counterweight and described Left gravity counterbalance mass is identical.Two side draw of swing rod can be made in the same size, and then guarantee opposite direction suffered by workpiece for measurement Torsion is consistent with positive direction torque magnitude, to guarantee the positive direction applied to workpiece for measurement torsion and opposite direction endurance torsion performance The consistency of test.

Further, eccentric adjuster, the eccentric adjuster and the swing rod are connected in the middle part of the flexible strand End is fixedly connected, and changes the folding and unfolding length of two sides flexible strand by adjusting the eccentric adjuster, guarantees two sides tenesmus Device does not depart from cam mechanism during the motion, and then guarantees to run smoothly.

Further, it is provided with several locking devices for being used to lock workpiece for measurement on the fixed station, passes through locking and fills It sets and cooperates with fixed station, the fixation and disassembly of more convenient workpiece for measurement.

Beneficial effect

Using technical solution provided by the utility model, compared with prior art, have the following beneficial effects:

(1) a kind of reciprocal endurance torsion test device provided by the utility model, passes through tension mechanism, swing rod, turbine Structure, lower fall device and cam mechanism etc. are equipped with, and are realized and are applied reversed torsion power to workpiece for measurement core, reach simulation The weariness working effect of workpiece actual working state is capable of the reciprocal endurance torsion performance of effective monitoring and evaluation workpiece, and structure Simply, easy to operate；

(2) a kind of reciprocal endurance torsion test device provided by the utility model borrows cam mechanism and alternately jacks up two sides Connecting rod, and borrow gravity Weight gravity and alternately exert a force to swing rod or so, achieve the effect that generate torsion repeatedly, while using leading Lower fall device running track is limited to set, avoids generating other invalid active force interference, so that it is practical to reach simulation workpiece for measurement The weariness working effect of working condition；

(3) a kind of reciprocal endurance torsion test device provided by the utility model, gravity counterweight are connect with link detachable, The gravity counterweight of replacement different stage easy to disassemble carries out the corresponding adjustment of twisting resistance；

(4) a kind of reciprocal endurance torsion test device provided by the utility model, motor and speed changer cooperation, adjust and stablize Revolving speed is exported, while using V belt translation is driven, further the stable speed of mainshaft, caused by effectively excluding because of power shakiness Invalid External force interference, make simulate effect be more nearly with actual working state, improve accurate testing degree；

(5) a kind of reciprocal endurance torsion test device provided by the utility model is provided with limiting groove on connecting rod, leads It is bolted with caging bolt to putting on, is cooperated using limiting groove and the caging bolt protruded into slot, can be played and further lead To position-limiting action, to prevent connecting rod shake excessive, reduces invalid external force and generate, Optimized Simulated effect；

(6) idler wheel is arranged in connecting rod lower end, by rolling in a kind of reciprocal endurance torsion test device provided by the utility model Wheel rolls on cam, can effectively avoid frictional resistance, avoid wearing, and reduces energy consumption, while without using lubricating oil, will not Environmental pollution is caused, is cut at low cost；

(7) a kind of reciprocal endurance torsion test device provided by the utility model, two cams are staggered in 180 ° of Space Angles Setting guarantees that connecting rod is not detached from cam at runtime, to guarantee the periodicity and stability of pulling force suffered by swing rod two sides, is kept away Exempt from pulling force mutation occur；

(8) a kind of reciprocal endurance torsion test device provided by the utility model, right gravity counterweight and left gravity counterweight matter Measure it is identical, can guarantee to workpiece for measurement apply positive direction torsion and opposite direction endurance torsion performance test consistency；

(9) a kind of reciprocal endurance torsion test device provided by the utility model, flexible strand middle part are connected with eccentric adjusting Device can change the folding and unfolding length of two sides flexible strand by adjusting eccentric adjuster, guarantee that fall device is being transported under two sides Cam mechanism is not departed from during dynamic, and then guarantees to run smoothly；

(10) a kind of reciprocal endurance torsion test device provided by the utility model, is matched by locking device and fixed station It closes, the fixation and disassembly of more convenient workpiece for measurement save the purpose of testing time to reach reduction labor intensity.

Detailed description of the invention

The front view of Fig. 1, the utility model；

The right view of Fig. 2, the utility model；

The top view of Fig. 3, the utility model；

The cooperation schematic diagram of main shaft, cam, connecting rod and guide sleeve in Fig. 4, the utility model.

In attached drawing: 1, cabinet；2, motor；3, speed changer；4, driving wheel；5, transmission belt；6, driven wheel；7, main shaft；8, convex Ring；9, block；10, cam；11, connecting rod；12, guide sleeve；13, right gravity counterweight；14, left gravity counterweight；15, flexible strand；16, Pulley mechanism；17, eccentric adjuster；18, swing rod；19, fixed station；20, tension mechanism；21, locking device；22, work to be measured Part；23, fot screw；111, limiting groove；112, idler wheel；121, caging bolt.

Specific embodiment

For the content for further appreciating that the utility model, the utility model is described in detail in conjunction with accompanying drawings and embodiments.

Embodiment 1

A kind of reciprocal endurance torsion test device, as shown in Figure 1, 2, 3, including cabinet 1, the cabinet 1 pass through lower margin spiral shell Nail 23 is fixed on the table or on ground, further includes fixed station 19, tension mechanism 20, swing rod 18, pulley mechanism 16, tenesmus dress It sets, cam mechanism and power device, the fixed station 19 are arranged at 1 top of cabinet, for fixing workpiece for measurement 22；Institute It states tension mechanism 20 and is connect with the workpiece for measurement 22 for serving as shaft, one end is inserted into the workpiece for measurement 22 when test The interior simultaneously tensioner of core axis hole, the other end is vertical with the swing rod 18 to be connect；The pulley mechanism 16 is symmetricly set on the cabinet 1 At the top of front side；The lower fall device upper end of left and right two is connected by flexible strand 15, and the flexible strand 15 detours in the pulley In mechanism 16, the lower fall device is tensed the flexible strand 15 by gravity tenesmus；Described 18 one end of swing rod and tension mechanism 20 are solid Fixed connection, the other end are fixedly connected on 15 middle part of flexible strand；The cam mechanism is horizontally set on 1 front side of cabinet, The lower fall device lower end is equipped with the cam mechanism, is moved by the cam mechanism, drive two sides it is described under Fall device moves up and down；The power device is arranged in the cabinet 1, for driving the cam mechanism, the power dress Be set to motor or motor and with the transmission mechanism that it is equipped with, be also possible to other devices for being capable of providing power.

A kind of application method of reciprocal endurance torsion test device of the present embodiment, step are as follows:

Step 1: randomly selecting workpiece for measurement 22, the workpiece for measurement 22 is fixed on fixed station 19；

Step 2: torsion test process:

A, start the power device, the power device drives the cam mechanism movement；

B, the cam mechanism alternately jacks up the lower fall device of the left and right sides；

C, the lower fall device of the left and right sides alternately drops, and is driven by flexible strand 15, applies to the swing rod 18 Swing pulling force；

D, the swing rod 18 applies reciprocal torsion to the tension mechanism 20, and torsion is transmitted to by the tension mechanism 20 22 core of workpiece for measurement, to apply twisting resistance repeatedly to 22 core of workpiece for measurement；

E, the power device is closed in test after a certain period of time, completes test；

Step 3: removing the workpiece for measurement 22, whether cracked 22 core of workpiece for measurement is observed, and record survey Test result.

A kind of reciprocal endurance torsion test device of the present embodiment, by tension mechanism 20, swing rod 18, pulley mechanism 16, Lower fall device and cam mechanism etc. are equipped with, and drive swing rod 18 to swing, and serve as shaft using tension mechanism 20 Transmission is realized and applies reversed torsion power to 22 core of workpiece for measurement, and the weariness working effect of simulation workpiece actual working state is reached Fruit is capable of the reciprocal endurance torsion performance of effective monitoring and evaluation workpiece, and structure is simple, easy to operate.

Embodiment 2

A kind of reciprocal endurance torsion test device of the present embodiment, basic structure exist with embodiment 1, different and improvements In as shown in Figure 1, 2, the lower fall device includes connecting rod 11, guide sleeve 12 and gravity counterweight, and the gravity counterweight is detachable It being connected on the connecting rod 11, the guide sleeve 12 is fixed on 1 front side of cabinet, and is slidably socketed on the connecting rod 11, The connecting rod 11 is slided up and down along the guide sleeve 12；In the present embodiment, the gravity counterweight is socketed in the company It on bar 11, and is fixed by nut, the replacement gravity counterweight easy to disassemble, and then test torque magnitude is adjusted；It can With understanding, the gravity counterweight can also be connect with the connecting rod 11 by other removablies.

As shown in Figure 1, the cam mechanism includes driven wheel 6, main shaft 7 and two cams 10, the main shaft 7 passes through bearing Seat is mounted on 1 front side of cabinet, and in being horizontally disposed with, the driven wheel 6 and two cams 10 are sequentially fixed at the main shaft 7 On, the driven wheel 6 is connect with the power device.

As shown in Figure 1,11 upper end of connecting rod is connect with the flexible strand 15 respectively, lower end is described convex with two sides respectively Wheel 10 is in contact with higher pair.

In application, starting the power device, the driven wheel 6 is driven to rotate, then drives two by the main shaft 7 Cam 10 rotates, and when two cams 10 rotate, respectively alternately jacks up the connecting rod 11 of the left and right sides, jacks up the connecting rod of side Gravity counterweight is driven to rise, the gravity counterweight of the other side is driven connecting rod tenesmus by gravity, to break 18 two sides of swing rod Stress balance, applies the swing rod 18 and swings pulling force, and the swing rod 18 applies reciprocal torsion, torsion to the tension mechanism 20 It is transmitted to 22 core of workpiece for measurement by the tension mechanism 20, to apply torsion repeatedly to 22 core of workpiece for measurement Power.

A kind of reciprocal endurance torsion test device of the present embodiment borrows the connecting rod that cam mechanism alternately jacks up two sides 11, and borrow gravity Weight gravity and alternately exert a force to swing rod 18 or so, achieve the effect that generate torsion repeatedly, while using guiding Set 12 limits lower fall device running track, avoids generating other invalid active force interference, so that it is real to reach simulation workpiece for measurement 22 The weariness working effect of border working condition.

Embodiment 3

A kind of reciprocal endurance torsion test device of the present embodiment, basic structure exist with embodiment 2, different and improvements In as shown in Fig. 2, the power device includes the motor 2, speed changer 3 and driving wheel 4 being successively cooperatively connected, the driving wheel 4 It is connect by transmission belt 5 with the driven wheel 6.When operation, after motor 2 starts, revolving speed is too fast, by leading after the deceleration of speed changer 3 Driving wheel 4 exports, and then passes to driven wheel 6 through transmission belt 5.In the present embodiment, the motor 2 is electrodeless variable-speed motor, speed It is adjustable, and then the alternating speed of twisting resistance can be adjusted, detection time is utmostly saved in the case where meeting test request, Improve detection efficiency.

A kind of reciprocal endurance torsion test device of the present embodiment, motor 2 and speed changer 3 cooperate, and adjust and stablize output turn Speed, while being driven using transmission belt 5, further stablizes 7 revolving speed of main shaft, so as to effectively exclude because power it is unstable caused by nothing External force interference is imitated, simulation effect is more nearly with actual working state, improves accurate testing degree.

Embodiment 4

A kind of reciprocal endurance torsion test device of the present embodiment, basic structure are different and improvement with embodiment 2 or 3 It is in being bolted with limit spiral shell on the guide sleeve 12 as shown in figure 4, being provided with limiting groove 111 on the connecting rod 11 Bolt 121, the caging bolt 121 is through the guide sleeve 12 and extend into the limiting groove 111.

The connecting rod 11 is when being pushed up and down motion by cam 10, between the connecting rod 11 and the guide sleeve 12 Gap cooperation, the connecting rod 11 is easy to shake in the guide sleeve 12, to generate invalid External force interference；Utilize limiting groove 111 cooperate with the caging bolt 121 protruded into slot, can play and lead further to position-limiting action, to prevent the connecting rod 11 It shakes excessive, reduces invalid external force and generate, Optimized Simulated effect.

In the present embodiment, it is provided with bulge loop 8 in the middle part of the main shaft 7, is provided on front side of the cabinet 1 and matches with the bulge loop 8 The block 9 of conjunction, the bulge loop 8 are located in the notch on the block 9, pass through the cooperation of the bulge loop 8 and the block 9, energy Enough avoid 7 or so the play of main shaft, be further reduced invalid external force and generate, Optimized Simulated effect, while avoid cam 10 with Laterally opposed displacement occurs between connecting rod 11 and driving wheel 4 and driven wheel 6, and then when equipment operation, safety and stability More preferably.

Embodiment 5

A kind of reciprocal endurance torsion test device of the present embodiment, basic structure is any with embodiment 2 to 4, different and change It is into place, as shown in figure 4,11 lower end of the connecting rod is respectively connected with idler wheel 112, the connecting rod 11 passes through the idler wheel 112 are in contact respectively with the cam 10 of two sides with higher pair.

It should be understood that being contacted between the cam 10 and the connecting rod 11 in the case where being not provided with idler wheel 112 And opposite sliding, frictional resistance is big, and easy to wear, energy consumption is high, and coating lubricating oil is needed to lubricate, and easily causes environmental pollution, this reality A kind of reciprocal endurance torsion test device for applying example is arranged idler wheel 112 in 11 lower end of connecting rod, exists by the idler wheel 112 It is rolled on the cam 10, can effectively avoid frictional resistance, avoid wearing, reduce energy consumption, while without using lubricating oil, no It will cause environmental pollution, cut at low cost.

Embodiment 6

A kind of reciprocal endurance torsion test device of the present embodiment, basic structure is any with embodiment 2 to 5, different and change It is into place, as shown in Fig. 2, two 10 offset angulars of cam are arranged on the main shaft 7, so that convex at two When wheel 10 is rotated with main shaft 7, the connecting rod 11 of two sides can be alternately jacked up, in the present embodiment, two cams 10 are in 180 ° of Space Angles It is arranged in a staggered manner, when guaranteeing that side connecting rod 11 rises to highest point, the other side is dropped down onto minimum point, i.e. two sides connecting rod 11 by self gravity Wherein side rises, the synchronous decline in the other side, and is not detached from cam 10, to guarantee the period of pulling force suffered by 18 two sides of swing rod Property and stability, avoid the occurrence of pulling force mutation.

Embodiment 7

A kind of reciprocal endurance torsion test device of the present embodiment, basic structure is any with embodiment 2 to 6, different and change It is into place, as shown in Figure 1, the gravity counterweight includes right gravity counterweight 13 and left gravity counterweight 14, the right gravity weight Code 13 and the left gravity counterweight 14 are identical in quality.

It should be understood that the practical pulling force that the swing rod 18 is subject to is other side gravity weight when side connecting rod 11 rises The sum of the gravity of code and the side connecting rod 11, guarantees that right gravity counterweight 13 and left gravity counterweight 14 are identical in quality, can make swing rod 18 Two side draws are in the same size, and then guarantee that opposite direction torsion suffered by workpiece for measurement 22 is consistent with positive direction torque magnitude, with Guarantee the consistency of the positive direction applied to workpiece for measurement 22 torsion and opposite direction endurance torsion performance test.

And for some in actual use only by the workpiece of one direction twisting resistance, the right gravity counterweight 13 and described left heavy 14 mass of power counterweight can not also be identical.

Embodiment 8

A kind of reciprocal endurance torsion test device of the present embodiment, basic structure is any with embodiment 1 to 7, different and change It is into place, as shown in Figure 1,3, eccentric adjuster 17, the eccentric adjuster is connected in the middle part of the flexible strand 15 17 are fixedly connected with 18 end of swing rod, and in the present embodiment, 17 both ends of eccentric adjuster and the flexible strand 15 are solid Fixed connection, middle part are connect by bolt with 18 end of swing rod.

In application, changing the folding and unfolding length of two sides flexible strand 15 by adjusting the eccentric adjuster 17, guarantee two Fall device does not depart from cam mechanism during the motion under side, and then guarantees to run smoothly.

Embodiment 9

A kind of reciprocal endurance torsion test device of the present embodiment, basic structure is any with embodiment 1 to 8, different and change It is into place, as shown in Figure 2,3, is provided on the fixed station 19 several for locking the locking device of workpiece for measurement 22 21.As shown in figure 3, the fixed station 19 is rounded, 1 top of cabinet, table on the fixed station 19 are horizontally fixed on by bolt Face is provided with several slideways being circumferentially uniformly distributed and be directed to the center of circle, and the locking device 21 is slidably arranged in the slideway Interior, the locking device 21, which can be realized, positions and unlocks sliding in the slideway internal locking.

When test, workpiece for measurement 22 is placed on the fixed station 19, it then will by the mobile locking device 21 22 clamping of workpiece for measurement simultaneously locks；After the completion of test, the locking device 21 is unlocked and slides and removes, thus by workpiece for measurement 22 remove.

A kind of reciprocal endurance torsion test device of the present embodiment is cooperated, more by locking device 21 and fixed station 19 Facilitate the fixation and disassembly of workpiece for measurement 22, to reach reduction labor intensity, saves the purpose of testing time.

Embodiment 10

The method that a kind of reciprocal endurance torsion test device in Application Example 9 tests reciprocal endurance torsion performance, step Suddenly are as follows:

Step 1: randomly selecting workpiece for measurement 22, according to the specification of workpiece for measurement 22, gravity counterweight is chosen and installs, with Different torsion is just provided；

Step 2: the workpiece for measurement 22 is fixed on fixed station 19, at the same by tension mechanism 20 be mounted on it is described to It surveys on workpiece 22；

Step 3: the degree of eccentricity is adjusted: adjusting the folding and unfolding of 18 left and right sides flexible strand 15 of swing rod by eccentric adjuster 17 Length is subject to and guarantees that fall device does not depart from cam mechanism during the motion under two sides；

Step 4: torsion test process:

A, power on, start motor 2, the motor 2 drives cam mechanism rotation；

B, two cams 10 on the cam mechanism alternately jack up the lower fall device of the left and right sides, break the swing rod 18 left and right sides accept balance；

C, the lower fall device of the left and right sides alternately drops, and is driven by flexible strand 15, applies to the swing rod 18 Swing pulling force；

D, the swing rod 18 applies reciprocal torsion to the tension mechanism 20, and torsion is transmitted to by the tension mechanism 20 22 core of workpiece for measurement；

E, the motor 2 is closed in test after a certain period of time, is then turned off power supply；

Step 5: removing the workpiece for measurement 22, whether cracked 22 core of workpiece for measurement is observed, and record survey Test result.

A kind of method of the reciprocal endurance torsion performance of test of the present embodiment, can be according to different 22 actual tests of workpiece for measurement It needs, replaces different stage gravity counterweight, carry out the corresponding adjustment of twisting resistance, twisting resistance numerical value is controllable, and measuring accuracy is high, stablizes Property is good；The interference that invalid external force can be effectively excluded in test process, can effectively simulate 22 actual working state of workpiece for measurement, More really reflect the reciprocal endurance torsion performance of workpiece for measurement 22.

Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.

Claims (9)

1. a kind of reciprocal endurance torsion test device, including cabinet (1), it is characterised in that: further include fixed station (19), tensioner machine Structure (20), swing rod (18), pulley mechanism (16), lower fall device, cam mechanism and power device, fixed station (19) setting At the top of the cabinet (1), for fixing workpiece for measurement (22)；The tension mechanism (20) for serve as shaft with it is described to be measured Workpiece (22) connection；The pulley mechanism (16) is symmetricly set on top on front side of the cabinet (1)；The tenesmus dress of left and right two It sets upper end to connect by flexible strand (15), the flexible strand (15) is detoured on the pulley mechanism (16)；The swing rod (18) One end is fixedly connected with tension mechanism (20), and the other end is connected in the middle part of the flexible strand (15)；The cam mechanism level is set It sets on front side of the cabinet (1), the lower fall device lower end is equipped with the cam mechanism；The power device setting exists In the cabinet (1), for driving the cam mechanism.

2. a kind of reciprocal endurance torsion test device according to claim 1, which is characterized in that wherein:

The lower fall device includes connecting rod (11), guide sleeve (12) and gravity counterweight, and the gravity counterweight is detachably connected on On the connecting rod (11), the guide sleeve (12) is fixed on front side of the cabinet (1), and is slidably socketed in the connecting rod (11) On；

The cam mechanism includes driven wheel (6), main shaft (7) and two cams (10), and the main shaft (7) is installed by bearing block On front side of the cabinet (1), the driven wheel (6) and two cams (10) are sequentially fixed on the main shaft (7)；

Connecting rod (11) upper end is connect with the flexible strand (15) respectively, lower end respectively the cam (10) with two sides with height Pair is in contact.

3. a kind of reciprocal endurance torsion test device according to claim 2, it is characterised in that: the power device includes Motor (2), speed changer (3) and the driving wheel (4) being successively cooperatively connected, the driving wheel (4) by transmission belt (5) and it is described from Driving wheel (6) connection.

4. a kind of reciprocal endurance torsion test device according to claim 2 or 3, it is characterised in that: the connecting rod (11) On be provided with limiting groove (111), be bolted with caging bolt (121), the caging bolt on the guide sleeve (12) (121) run through the guide sleeve (12) and extend into the limiting groove (111).

5. a kind of reciprocal endurance torsion test device according to claim 2 or 3, it is characterised in that: the connecting rod (11) Lower end is respectively connected with idler wheel (112), and the connecting rod (11) passes through the idler wheel (112) described cam (10) with two sides respectively It is in contact with higher pair.

6. a kind of reciprocal endurance torsion test device according to claim 2 or 3, it is characterised in that: two cams (10) offset angular is arranged on the main shaft (7).

7. a kind of reciprocal endurance torsion test device according to claim 2 or 3, it is characterised in that: the gravity counterweight Including right gravity counterweight (13) and left gravity counterweight (14), the right gravity counterweight (13) and left gravity counterweight (14) quality It is identical.

8. a kind of reciprocal endurance torsion test device according to any one of claims 1 to 3, it is characterised in that: the flexibility It is connected with eccentric adjuster (17) in the middle part of rope (15), the fixed company of the eccentric adjuster (17) and the swing rod (18) end It connects.

9. a kind of reciprocal endurance torsion test device according to any one of claims 1 to 3, it is characterised in that: the fixation It is provided on platform (19) several for locking the locking device (21) of workpiece for measurement (22).