CN204903323U - High all flexural fatigue capability test equipment - Google Patents

High all flexural fatigue capability test equipment Download PDF

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Publication number
CN204903323U
CN204903323U CN201520606675.0U CN201520606675U CN204903323U CN 204903323 U CN204903323 U CN 204903323U CN 201520606675 U CN201520606675 U CN 201520606675U CN 204903323 U CN204903323 U CN 204903323U
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reciprocating
crank
driver
fatigue property
property testing
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魏勇强
杨莹
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Microport Sorin CRM Shanghai Co Ltd
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Shanghai Microport Medical Group Co Ltd
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Abstract

The utility model provides a high all flexural fatigue capability test equipment, high all flexural fatigue capability test equipment includes initiative reciprocating motion mechanism, driven reciprocating motion mechanism, driver, under the drive of driver, reciprocating motion is made in the initiative reciprocating motion mechanism drive driven reciprocating motion mechanism of its connection with it. Because the first end of measured object is fixed in test chuck centre gripping in the driven reciprocating motion mechanism, the second end of measured object links to each other in order to remain vertical position throughout with a heavy object, consequently works as the first end of measured object is followed during test chuck reciprocating motion in the driven reciprocating motion mechanism, the position produces the cyclic bending between the first end of measured object and the second end to the test to the high all flexural fatigue performances of measured object has been realized.

Description

High all fatigue property testing apparatuss
Technical field
The utility model relates to medicine equipment technical field of measurement and test, particularly the high all fatigue property testing apparatuss of one.
Background technology
Medicine equipment, such as flexible elongated body (axial dimension is much larger than the flexible medical device of sectional dimension) runs into External Force Acting in use procedure and can occur bending and deformation, if improper use easily causes the risk to patient.All the more so for the medicine equipment be implanted in human body, be particularly implanted to the electrode cable (including but not limited to, cardiac pacing/defibrillation electrode cable, neural pace-making electrode cable) of human body.
One of arrhythmia cordis means the most effective and conventional treated at present by Implanted cardiac pacemaker, defibrillator, wherein, electrode cable makes the electrical signal conduction path in Implanted cardiac pacemaker, defibrillator, and need to implant for a long time, therefore the reliability of electrode cable is very important.Concrete, after electrode cable implants, its head end is fixed on the internal membrane of heart or the external membrane of heart, and electrode cable head end is along with heartthrob meeting cyclic bending, because electrode cable Implantation Time extremely grows (often reaching more than 10 years), therefore there is the risk of fatigue failure in electrode cable.
International standard ISO14708-1:2000Implantsforsurgery-Activeimplantablemedicaldevices-Part1:Generalrequirementsforsafety, in markingandforinformationtobeprovidedbythemanufacturer 23.4,23.5 regulations, when electrode cable exists one or one or more conductive path, need by analyze or test figure evaluate electrode wire conductive path and insulation course can not produce because of long-term bending stress the performance lost efficacy after the implantation.In China pharmaceuticals industry standard YY/T0492-2004 Implanted cardiac pacemaker electrode catheter, 5.5 compliance test clauses define the test request of electrode cable bending fatigue, specifically contain test cartridge (fixator namely in standard), electrode cable stage casing (non-head end, non-connector end) and the electrode cable connector end method of clamping when carrying out bending fatigue test, the angle θ of reciprocally swinging and hunting frequency etc. (as Fig. 1, shown in Fig. 2).International standard ISO14708-2 also has similar regulation.But standard ISO 14708-1:2000 and YY/T0492-2004 only proposes the mechanical property requirements to electrode cable, does not provide corresponding method of testing, does not more provide testing apparatus.
Therefore, this area needs a kind of high all fatigue property testing apparatuss of exploitation badly.
Summary of the invention
Whether the purpose of this utility model is to provide a kind of high all fatigue property testing apparatuss, satisfy the demands with the height week fatigue property testing tested medicine equipment.
For solving the problems of the technologies described above, the utility model provides a kind of high all fatigue property testing apparatuss, and described height all fatigue properties testing apparatus comprises: initiatively reciprocating mechanism, driven reciprocating mechanism, driver,
Described driver, is connected with described active reciprocating mechanism, for driving the to-and-fro movement of described active reciprocating mechanism;
Described driven reciprocating mechanism, is connected with described active reciprocating mechanism, to make described driven reciprocating mechanism reciprocating under the driving of described active reciprocating mechanism;
Described test cartridge is fixed on described driven reciprocating mechanism, for clamping measured object.
Optionally, in described height week fatigue property testing apparatus, also comprise number system, be connected with described driver, record the cycle index that the active reciprocating mechanism that is connected with driver moves reciprocatingly.
Optionally, in all fatigue property testing apparatuss of described height, described number system comprises: the cycle index sensing unit, the counting meter that connect successively, and described cycle index sensing unit is connected with described driver, and cycle index sensing unit is electrically connected with counting meter.
Optionally, in all fatigue property testing apparatuss of described height, described cycle index sensing unit comprises: magnet and Hall element, described magnet is arranged on the output terminal of described driver, described Hall element is arranged at the top of described magnet, and described counting meter is electrically connected with described Hall element.
Optionally, in all fatigue property testing apparatuss of described height, described cycle index sensing unit comprises: reflector plate and photoelectric sensor, described reflector plate is arranged on the output terminal of described driver, described photoelectric sensor is arranged at the top of described reflector plate, and described counting meter is electrically connected with described photoelectric sensor.
Optionally, in all fatigue property testing apparatuss of described height, also comprise the power supply for driving driver, described driver is motor, described number system also comprises relay, the input circuit of cycle index sensing unit, counting meter, described relay connects successively, the output loop of described relay, motor, power supply are electrically connected successively, when the cycle index of the record of described number system reaches preset value, described counting meter trigger relay, with the electrical connection of deenergization and motor.
Optionally, in all fatigue property testing apparatuss of described height, described driver is permanent magnet DC motor, and the frequency of operation of described driver is set as 2 ~ 10Hz.
Optionally, in all fatigue property testing apparatuss of described height, described active reciprocating mechanism is linear reciprocating mechanism or swings reciprocating mechanism.
Optionally, in all fatigue property testing apparatuss of described height, described linear reciprocating mechanism is slider-crank mechanism or cam ejection pin mechanism.
Optionally, in all fatigue property testing apparatuss of described height, when described active reciprocating mechanism is slider-crank mechanism, described driven reciprocating mechanism is rack pinion engaging mechanism; Wherein, described slider-crank mechanism comprises: length-adjustable crank, connecting rod, the slide block moved along guide rod, and described rack pinion engaging mechanism comprises intermeshing tooth bar, follower gear;
Described crank, for doing circumnutation under the driving of described driver, one end of described crank is connected with described driver, and the other end of described crank is connected with one end of described connecting rod; The other end of described connecting rod is connected with described slide block, and tooth bar to-and-fro movement described in described slider-actuated, described test cartridge is fixed on described follower gear.
Optionally, in all fatigue property testing apparatuss of described height, described slide block is fixedly connected with described tooth bar.
Optionally, in all fatigue property testing apparatuss of described height, initiatively reciprocating mechanism is slider-crank mechanism, and described driven reciprocating mechanism is rack pinion engaging mechanism, and described slider-crank mechanism comprises length-adjustable crank, connecting rod, slide block, guide rod; Described rack pinion engaging mechanism comprises tooth bar, follower gear, chuck web joint;
One end of described length-adjustable crank is connected with driver, the other end is connected with two connecting rods, the other end of each connecting rod is connected with a described slide block, described slide block and described guide rod are slidably connected, eachly to engage with a follower gear with the tooth bar that slide block is fixedly connected with, the two ends of follower gear are connected with a chuck web joint respectively, follower gear rotates for driving chuck web joint, each chuck web joint is provided with test cartridge described at least one, when the straight line of described crank perpendicular to guide rod place, two connecting rods and the slide block be connected with each connecting rod, follower gear, chuck web joint is symmetrical relative to crank.
Optionally, in all fatigue property testing apparatuss of described height, described swing reciprocating mechanism is crank and rocker mechanism.
Optionally, in all fatigue property testing apparatuss of described height, when described active reciprocating mechanism is crank and rocker mechanism, described driven reciprocating mechanism is gear engagement mechanism; Wherein, described crank and rocker mechanism comprises: length-adjustable crank, connecting rod and rocking bar, and described gear engagement mechanism comprises intermeshing first gear, the second gear;
Described crank, for doing circumnutation under the driving of described driver, one end of described crank is connected with described driver, and the other end of described crank is connected with one end of described connecting rod; The other end of described connecting rod is connected with one end of described rocking bar, and described rocking bar drives the first gear reciprocating motion, and described test cartridge is fixed on the second gear.
Optionally, in all fatigue property testing apparatuss of described height, described rocking bar is fixedly connected with described first gear.
Optionally, in all fatigue property testing apparatuss of described height, the pendulum angle of described test cartridge is greater than 0 ° and is less than or equal to 90 °.
Optionally, in all fatigue property testing apparatuss of described height, described measured object is electrode cable.
In all fatigue property testing apparatuss of height provided by the utility model, described height all fatigue properties testing apparatus comprises initiatively reciprocating mechanism, driven reciprocating mechanism, driver, under the driving of driver, described active reciprocating mechanism drives its driven reciprocating mechanism connected with it to move reciprocatingly.First end due to measured object is fixed in the test cartridge clamping on described driven reciprocating mechanism, second end of described measured object is connected to remain plumbness with a weight, therefore when the first end of described measured object is with test cartridge to-and-fro movement on described driven reciprocating mechanism, between the first end of described measured object and the second end, position produces cyclic bending, thus achieves the test to all fatigue properties of tested object height.
On the other hand, be provided with number system, for recording initiatively reciprocating mechanism to-and-fro movement number of times and then can learning that described measured object to produce the cycle index of cyclic bending with the to-and-fro movement of described driven reciprocating mechanism, the number of times of measured object cyclic bending during to meet real work, verifies the reliability of its technique during measured object work further comparatively accurately.
On the other hand, when adopting slider-crank mechanism or crank and rocker mechanism as active reciprocating mechanism, by the pendulum angle that the length changing crank regulates driven reciprocating mechanism reciprocating, to meet different height week fatigue property testing requirements.
Accompanying drawing explanation
Fig. 1 is the fixator being applied to electrode catheter fragment crooked test in standard YY/T0492-2004;
Fig. 2 is the fixator being applied to the test of electrode catheter connector bending property in standard YY/T0492-2004;
Fig. 3 is the structural framing schematic diagram of the high all fatigue property testing apparatuss of the utility model;
Fig. 4 is the structural representation of all fatigue property testing apparatuss of height when initiatively reciprocating mechanism is linear reciprocating mechanism in the utility model embodiment one;
Fig. 5 is the theory structure schematic diagram of number system in the utility model embodiment one or two;
Fig. 6 is that in the utility model embodiment two, initiatively reciprocating mechanism is the structural representation of all fatigue property testing apparatuss of height when swinging reciprocating mechanism;
Fig. 7 is the one-piece construction schematic diagram of high all fatigue property testing apparatuss in the utility model embodiment three.
In figure, driver 1; Initiatively reciprocating mechanism 2; Crank 20; Connecting rod 21; Slide block 22; Rocking bar 23; Driven reciprocating mechanism 3; Test cartridge 30; First gear 32; Second gear 31; Follower gear 31 '; Number system 4; Magnet 40; Hall element 41, counting meter 42; Relay 43; Tested electrode cable 5; Board 6; Transmission shaft 60; Guide rod 61; Guide bar support 62; Chuck web joint 63.
Embodiment
Below in conjunction with the drawings and specific embodiments, the height week fatigue property testing apparatus that the utility model proposes is described in further detail.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, although measured object is electrode cable in embodiment, embodiment is not limitation of the present invention, and those skilled in the art are easy to testing apparatus of the present invention to be applied to other measured objects.Accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.It is important to note that standard ISO 14708-1:2000, standard ISO 14708-2:2005, pharmaceuticals industry standard YY/T0492-2004 in full introduce the present invention, as a part for embodiment below the present invention.
Please refer to Fig. 3, it is the structural framing schematic diagram of the high all fatigue property testing apparatuss of the utility model.As shown in Figure 3, described height week fatigue property testing apparatus comprises: initiatively reciprocating mechanism 2, driven reciprocating mechanism 3, driver 1 (the present embodiment is explained in detail for motor for driver 1), test cartridge (is equivalent to the fixator in standard, whether equipment of the present invention adopts the chuck in above-mentioned standard to be not particularly limited to test cartridge, those skilled in the art can adopt arbitrary existing chuck as required), described driver 1, be connected with described active reciprocating mechanism 2, for driving the to-and-fro movement of described active reciprocating mechanism 2, described driven reciprocating mechanism 3, is connected with described active reciprocating mechanism 2, to make described driven reciprocating mechanism 3 reciprocating under the driving of described active reciprocating mechanism 2, described test cartridge is fixed on described driven reciprocating mechanism 3, for clamping tested electrode cable 5.
The application, described active reciprocating mechanism 2 is linear reciprocating mechanism or swings reciprocating mechanism.Below in conjunction with embodiment one and two, further understanding is done to active reciprocating mechanism 2.
Embodiment one:
When described active reciprocating mechanism 2 is linear reciprocating mechanism, preferred described linear reciprocating mechanism is slider-crank mechanism or cam ejection pin mechanism.Be explained in detail for the testing apparatus comprising slider-crank mechanism in the present embodiment.Please refer to Fig. 4, its be the utility model embodiment one when initiatively reciprocating mechanism is slider-crank mechanism height week fatigue property testing apparatus structural representation.As shown in Figure 4, when described active reciprocating mechanism 2 is slider-crank mechanism, described driven reciprocating mechanism 3 is rack pinion engaging mechanism; Wherein, described slider-crank mechanism comprises: length-adjustable crank 20, connecting rod 21, the slide block 22 moved along guide rod, and described rack pinion engaging mechanism comprises intermeshing tooth bar, follower gear 31 '; Described crank 20, for doing circumnutation under the driving of described driver, one end of described crank 20 is connected with described driver 1, and the other end of described crank 20 is connected with one end of described connecting rod 21; The other end of described connecting rod 21 is connected with described slide block 22, and described slide block 22 drives described tooth bar to-and-fro movement, and described test cartridge 30 is fixed on described follower gear 31 '.When described slide block 22 does straight reciprocating motion along guide rod, (tooth bar can be separate structure with slide block here for follower gear 31 ' and the tooth bar be arranged on described slide block 22 of described rack pinion engaging mechanism, or tooth bar and slide block are formed in one, in the present embodiment, be preferably tooth bar and slide block one-body molded) engage each other, to drive described follower gear 31 ' reciprocating.Because the test test cartridge 30 be fixed on the follower gear 31 ' of rack pinion engaging mechanism clamps the first end of tested electrode cable 5, (position of the first end of tested electrode cable 5 can be electrode cable stage casing or link.Needing the fatigue property of the diverse location measuring tested electrode cable, the position of tested electrode cable can be clamped by adjustment test cartridge, there is general applicability), when rack pinion engaging mechanism is reciprocating, because the second end of described tested electrode cable 5 is connected with a weight, all the time by the acting force of a vertical direction, therefore described tested electrode cable 5 produces cyclic bending with the to-and-fro movement of described follower gear 31 '.In order to meet standard ISO 14708 and the YY/T0492-2004 test request for electrode cable bending fatigue, can by the angle θ regulating the length of crank 20 to change the reciprocally swinging of the gear of driven reciprocating mechanism 3, the scope of angle is less than or equal to 90 ° for being greater than 0 °, is regulated the hunting frequency of follower gear 31 ' by the frequency of operation of adjusting driver 1.
In the present embodiment, driver 1 is preferably permanent magnet DC motor, and in order to the stability making high all fatigue property testing apparatuss run, the frequency of operation of described driver 1 is set as 2 ~ 10Hz.
Preferably, in order to reduce the friction of slide block 22 for board, between slide block 22 and guide rod, linear ball bearing is provided with.
Before all fatigue property testing apparatuss of the height of practical application the application, if make electrode cable meet the regulation of standard ISO 14708, YY/T0492-2004 in advance, then need according to simulation test requirement adjustment crank 20 length, thus the angle θ of the reciprocally swinging of fixing driven reciprocating mechanism 3, to verify the whether standard compliant regulation of height week fatigue property of electrode cable.
Please refer to Fig. 3 and Fig. 5, Fig. 5 is the theory structure schematic diagram of number system in the utility model embodiment one or two.Described height all fatigue properties testing apparatus also comprises the number system 4 be connected with described driver 1, the cycle index that the active reciprocating mechanism that record is connected with driver 1 moves reciprocatingly, and then obtain number of bends in tested electrode cable 5 test process.Preferably, number system 4 comprises: the cycle index sensing unit connected successively, counting meter 42, and described cycle index sensing unit is connected with described driver 1, and cycle index sensing unit is electrically connected with counting meter 42.Preferably, described driver 1 is motor, described number system 4 with motor, be connected for the power electric of drive motor, when the cycle index of the record of number system 4 reaches preset value, described counting meter 42 trigger relay 1, with the electrical connection of deenergization and motor.
As shown in Figure 5, the number system of the application comprise be electrically connected successively cycle index sensing unit, counting meter 42 (such as the BT50 intelligent counter of Xiamen Bert automation engineering company limited) and relay 43 (input circuit), described cycle index sensing unit is connected with motor, described relay 43 (output loop) is electrically connected with between power supply, motor, to control the switch of motor.Described relay 43 is preferably closed type.Concrete, in the present embodiment, two kinds of structures are listed for cycle index sensing unit:
Structure one: as shown in Figure 5, described cycle index sensing unit comprises: magnet 40 and Hall element 41, described magnet 40 is arranged on the output terminal of described driver 1, described Hall element 41 is arranged at the top of magnet 40, described Hall element 41 is electrically connected successively with counting meter 42, relay 43 (input circuit), and described relay 43 (output loop) is connected with motor, power electric.Its principle of work is, when machine operation, the motion of described Hall element 41 induced magnet 40, and export the on-off model identical with motor rotation frequency, counting meter 42 receiving key amount signal also records cycle index, after the cycle index of counting meter 42 record reaches default cycle index, and relay 43 disconnecting circuit, make motor stalls, complete the high all fatigue property tests of this electrode cable.
Structure two: described cycle index sensing unit comprises: reflector plate and photoelectric sensor (being magnet and Hall element to replace with reflector plate and photoelectric sensor with the difference of structure one), described reflector plate is arranged on the output terminal of described motor, described photoelectric sensor is electrically connected successively with described counting meter 42, relay 43 (input circuit), and described relay 43 (output loop) is electrically connected successively with motor, power supply.When machine operation, the light that described photoelectric sensor induction reflector plate is launched, and export the on-off model identical with motor rotation frequency, counting meter 42 receiving key amount signal also records cycle index, after the cycle index recorded when counting meter 42 reaches default cycle index, relay 43 disconnects, with the electrical connection of deenergization and motor, make motor stalls, complete the high all fatigue property tests of this electrode cable.
Certainly, the structure for cycle index sensing unit is not limited to above-mentioned two kinds of structures, as long as according to the work of driver 1, can export the on-off model identical with driver 1 rotational frequency to counting meter 42.
Embodiment two:
The place that embodiment two compares embodiment one different is, active reciprocating mechanism 2 is driven to the mode of motion of described driven reciprocating mechanism 3, the form of straight reciprocating motion is used (such as in embodiment one, slide block 22 is utilized to do straight reciprocating motion) drive driven reciprocating mechanism 3 to move back and forth, the reciprocating form of swing (such as, utilizing the swing to-and-fro movement of the first gear 32) is utilized to drive driven reciprocating mechanism 3 to move back and forth in embodiment two.
Please refer to Fig. 6, it is that in the utility model embodiment two, initiatively reciprocating mechanism 2 is the structural representation of all fatigue property testing apparatuss of height when swinging reciprocating mechanism.As shown in Figure 6, when described active reciprocating mechanism 2 is crank and rocker mechanism, described driven reciprocating mechanism 3 is gear engagement mechanism; Wherein, described crank and rocker mechanism comprises: length-adjustable crank 20, connecting rod 21 and rocking bar 23, and described gear engagement mechanism comprises the first gear 32, second gear 31; Described crank 20, for doing circumnutation under the driving of described driver 1 (in Fig. 5, driver 1 is preferably motor), one end of described crank 20 is connected with described driver 1, the other end of described crank 20 is connected with one end of described connecting rod 21, the other end of described connecting rod 21 is connected with one end of described rocking bar 23, described rocking bar 23 drives described first gear to move reciprocatingly, and described test cartridge is fixed on the second gear; Wherein, described rocking bar 23 is fixedly connected with described first gear 32.When the first gear 32 of described crank and rocker mechanism is done to swing to-and-fro movement, described first gear 32 is meshed with the second gear 31, to drive the second gear 31 reciprocating.Equally, can by the angle θ regulating the length of crank 20 to change the reciprocally swinging of the second gear 31 of driven reciprocating mechanism 3, the scope of angle is less than or equal to 90 ° for being greater than 0 °, is regulated the hunting frequency of the second gear 31 by the frequency of operation of adjusting driver 1.
Embodiment three
Please refer to Fig. 7, it is the one-piece construction schematic diagram of high all fatigue property testing apparatuss in the utility model embodiment three.As shown in Figure 7, the board 6 of high all fatigue property testing apparatuss is as equipment support, and all parts are installed on board 6; Driver 1 (being permanent magnet DC motor in the present embodiment) is connected with one end of length-adjustable crank 20; The other end of crank 20 is connected with two connecting rods 21; The other end of each connecting rod 21 is connected with the slide block that tooth bar is fixedly connected with one, and described slide block slides along guide rod 61; Eachly to engage with a follower gear 31 ' with the tooth bar that slide block is fixedly connected with; The two ends of follower gear 31 ' are connected (such as with a chuck web joint 63 respectively, follower gear 31 ' shown in Fig. 7 is porose, passing hole transmission shaft 60 is fixedly connected with follower gear 31 ', transmission shaft 60 two ends are fixedly connected with chuck web joint 63 one end respectively, chuck web joint 63 other end is supported by web joint fixator 2), follower gear 31 ' rotates for driving chuck web joint 63; Each chuck web joint 63 is provided with at least one test cartridge; When the straight line of described crank 20 perpendicular to guide rod place, described two connecting rods 21 and the slide block 22 be connected with each connecting rod 21, follower gear 31 ', chuck web joint 63 are symmetrical relative to crank 20.As can be seen here, a height week fatigue property testing apparatus as shown in Figure 7 can carry out high all fatigue property tests to multiple tested electrode cable 5 simultaneously.In Fig. 7, board 6 has 4 chuck web joints 63, each chuck web joint 63 is provided with 5 test cartridge 30, each test cartridge 30 respectively installs a tested electrode cable 5, can test at most 20 electrode cables in namely once testing.
During test, the tested grips in tested electrode cable one end, the other end is connected with weight, and the rotating drive crank 20 of driver 1 is rotated around the main shaft of driver 1, crank 20 drive link 21, and drags slide block 22 and do linear reciprocating motion along guide rod.When slide block 22 straight reciprocating motion, do crankmotion under the rack drives of follower gear 31 ' on slide block 22 and drive clamp connector 3 to do reciprocally swinging.The test cartridge 30 be fixed on clamp connector 3 carries out reciprocally swinging equally with clamp connector 3.Because tested electrode cable 5 is flexible body, and its underpart remains plumbness, and when test cartridge 30 reciprocally swinging, tested electrode cable 5 can form cyclic bending.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To sum up, in all fatigue property testing apparatuss of height provided by the utility model, described height all fatigue properties testing apparatus comprises initiatively reciprocating mechanism, driven reciprocating mechanism, driver, under the driving of driver, described active reciprocating mechanism drives its driven reciprocating mechanism connected with it reciprocating.First end due to measured object is fixed in the test cartridge clamping on described driven reciprocating mechanism, second end of described measured object is connected to remain plumbness with a weight, therefore when the first end of described measured object is with test cartridge to-and-fro movement on described driven reciprocating mechanism, between the first end of described measured object and the second end, position produces cyclic bending, thus achieves the test to all fatigue properties of tested object height.
On the other hand, be provided with number system, to produce the cycle index of cyclic bending with the to-and-fro movement of described driven reciprocating mechanism for recording described measured object, the number of times of measured object cyclic bending during to meet real work, verifies the reliability of its technique during measured object work further comparatively accurately.
On the other hand, when adopting slider-crank mechanism or crank and rocker mechanism as active reciprocating mechanism, by the pendulum angle that the length changing crank regulates driven reciprocating mechanism reciprocating, to meet different height week fatigue property testing requirements.
Foregoing description is only the description to the utility model preferred embodiment; any restriction not to the utility model scope; any change that the those of ordinary skill in the utility model field does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.

Claims (17)

1. high all fatigue property testing apparatuss, is characterized in that, comprising: initiatively reciprocating mechanism, driven reciprocating mechanism, driver,
Described driver, is connected with described active reciprocating mechanism, for driving the to-and-fro movement of described active reciprocating mechanism;
Described driven reciprocating mechanism, is connected with described active reciprocating mechanism, to make described driven reciprocating mechanism reciprocating under the driving of described active reciprocating mechanism;
Described test cartridge is fixed on described driven reciprocating mechanism, for clamping measured object.
2. high all fatigue property testing apparatuss as claimed in claim 1, is characterized in that, also comprise number system, be connected with described driver, record the cycle index that the active reciprocating mechanism that is connected with driver moves reciprocatingly.
3. high all fatigue property testing apparatuss as claimed in claim 2, it is characterized in that, described number system comprises: the cycle index sensing unit, the counting meter that connect successively, described cycle index sensing unit is connected with described driver, and cycle index sensing unit is electrically connected with counting meter.
4. high all fatigue property testing apparatuss as claimed in claim 3, it is characterized in that, described cycle index sensing unit comprises: magnet and Hall element, described magnet is arranged on the output terminal of described driver, described Hall element is arranged at the top of described magnet, and described counting meter is electrically connected with described Hall element.
5. high all fatigue property testing apparatuss as claimed in claim 3, it is characterized in that, described cycle index sensing unit comprises: reflector plate and photoelectric sensor, described reflector plate is arranged on the output terminal of described driver, described photoelectric sensor is arranged at the top of described reflector plate, and described counting meter is electrically connected with described photoelectric sensor.
6. high all fatigue property testing apparatuss as claimed in claim 3, it is characterized in that, also comprise the power supply for driving driver, described driver is motor, described number system also comprises relay, the input circuit of cycle index sensing unit, counting meter, described relay connects successively, the output loop of described relay, motor, power supply are electrically connected successively, when the cycle index of the record of described number system reaches preset value, described counting meter trigger relay, with the electrical connection of deenergization and motor.
7. the height week fatigue property testing apparatus as described in claim 1 or 6, it is characterized in that, described driver is permanent magnet DC motor, and the frequency of operation of described driver is set as 2 ~ 10Hz.
8. high all fatigue property testing apparatuss as claimed in claim 1, is characterized in that, described active reciprocating mechanism is linear reciprocating mechanism or swings reciprocating mechanism.
9. high all fatigue property testing apparatuss as claimed in claim 8, it is characterized in that, described linear reciprocating mechanism is slider-crank mechanism or cam ejection pin mechanism.
10. high all fatigue property testing apparatuss as claimed in claim 9, is characterized in that, when described active reciprocating mechanism is slider-crank mechanism, described driven reciprocating mechanism is rack pinion engaging mechanism; Wherein, described slider-crank mechanism comprises: length-adjustable crank, connecting rod, the slide block moved along guide rod, and described rack pinion engaging mechanism comprises intermeshing tooth bar, follower gear;
Described crank, for doing circumnutation under the driving of described driver, one end of described crank is connected with described driver, and the other end of described crank is connected with one end of described connecting rod; The other end of described connecting rod is connected with described slide block, and tooth bar to-and-fro movement described in described slider-actuated, described test cartridge is fixed on described follower gear.
11. high all fatigue property testing apparatuss as claimed in claim 10, it is characterized in that, described slide block is fixedly connected with described tooth bar.
12. high all fatigue property testing apparatuss as claimed in claim 9, it is characterized in that, initiatively reciprocating mechanism is slider-crank mechanism, described driven reciprocating mechanism is rack pinion engaging mechanism, and described slider-crank mechanism comprises length-adjustable crank, connecting rod, slide block, guide rod; Described rack pinion engaging mechanism comprises tooth bar, follower gear, chuck web joint;
One end of described length-adjustable crank is connected with driver, the other end is connected with two connecting rods, the other end of each connecting rod is connected with a described slide block, described slide block and described guide rod are slidably connected, eachly to engage with a follower gear with the tooth bar that slide block is fixedly connected with, the two ends of follower gear are connected with a chuck web joint respectively, follower gear rotates for driving chuck web joint, each chuck web joint is provided with test cartridge described at least one, when the straight line of described crank perpendicular to guide rod place, two connecting rods and the slide block be connected with each connecting rod, follower gear, chuck web joint is symmetrical relative to crank.
13. high all fatigue property testing apparatuss as claimed in claim 8, it is characterized in that, described swing reciprocating mechanism is crank and rocker mechanism.
14. high all fatigue property testing apparatuss as claimed in claim 13, it is characterized in that, when described active reciprocating mechanism is crank and rocker mechanism, described driven reciprocating mechanism is gear engagement mechanism; Wherein, described crank and rocker mechanism comprises: length-adjustable crank, connecting rod and rocking bar, and described gear engagement mechanism comprises intermeshing first gear, the second gear;
Described crank, for doing circumnutation under the driving of described driver, one end of described crank is connected with described driver, and the other end of described crank is connected with one end of described connecting rod; The other end of described connecting rod is connected with one end of described rocking bar, and described rocking bar drives the first gear reciprocating motion, and described test cartridge is fixed on the second gear.
15. high all fatigue property testing apparatuss as claimed in claim 14, it is characterized in that, described rocking bar is fixedly connected with described first gear.
16. high all fatigue property testing apparatuss as claimed in claim 1, it is characterized in that, the pendulum angle of described test cartridge is greater than 0 ° and is less than or equal to 90 °.
17. high all fatigue property testing apparatuss as claimed in claim 1, it is characterized in that, described measured object is electrode cable.
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105773394A (en) * 2016-04-08 2016-07-20 邵阳学院 Valve grinder with limited processing capacity
CN107014700A (en) * 2017-04-25 2017-08-04 中国电子产品可靠性与环境试验研究所 Flexing Apparatus
CN107048442A (en) * 2017-05-27 2017-08-18 贵州省德均农特产品开发有限公司 A kind of processing unit (plant) of bamboo shoots
CN107144476A (en) * 2017-04-25 2017-09-08 中国电子产品可靠性与环境试验研究所 Flexing Apparatus and its transmission device
CN107399669A (en) * 2017-09-08 2017-11-28 芜湖市长江起重设备制造有限公司 A kind of fixed pulley group structure of bridge crane
CN108225936A (en) * 2017-12-28 2018-06-29 重庆林盛工贸有限公司 Materials for construction test machine
CN108225395A (en) * 2017-12-22 2018-06-29 深圳市晟弘企业管理有限公司 A kind of mobile phone based on wind power transmission wind shakes test shelves
CN108950999A (en) * 2017-05-19 2018-12-07 青岛海尔洗衣机有限公司 Two-tub washing machine and its drive system and bidirectional reciprocating telecontrol equipment
CN110907297A (en) * 2019-12-26 2020-03-24 北京航空航天大学 Three-point bending fatigue test device applied to displacement loading

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105773394A (en) * 2016-04-08 2016-07-20 邵阳学院 Valve grinder with limited processing capacity
CN105773394B (en) * 2016-04-08 2018-04-03 邵阳学院 It is a kind of that there is the valve grinder for limiting processing capacity
CN107014700A (en) * 2017-04-25 2017-08-04 中国电子产品可靠性与环境试验研究所 Flexing Apparatus
CN107144476A (en) * 2017-04-25 2017-09-08 中国电子产品可靠性与环境试验研究所 Flexing Apparatus and its transmission device
CN107144476B (en) * 2017-04-25 2019-05-03 中国电子产品可靠性与环境试验研究所 Flexing Apparatus and its transmission device
CN108950999A (en) * 2017-05-19 2018-12-07 青岛海尔洗衣机有限公司 Two-tub washing machine and its drive system and bidirectional reciprocating telecontrol equipment
CN107048442A (en) * 2017-05-27 2017-08-18 贵州省德均农特产品开发有限公司 A kind of processing unit (plant) of bamboo shoots
CN107399669A (en) * 2017-09-08 2017-11-28 芜湖市长江起重设备制造有限公司 A kind of fixed pulley group structure of bridge crane
CN108225395A (en) * 2017-12-22 2018-06-29 深圳市晟弘企业管理有限公司 A kind of mobile phone based on wind power transmission wind shakes test shelves
CN108225936A (en) * 2017-12-28 2018-06-29 重庆林盛工贸有限公司 Materials for construction test machine
CN108225936B (en) * 2017-12-28 2020-04-21 重庆林盛工贸有限公司 Plastic building material testing machine
CN110907297A (en) * 2019-12-26 2020-03-24 北京航空航天大学 Three-point bending fatigue test device applied to displacement loading

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