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CN106404518B - A kind of spontaneous load experimental rig - Google Patents

A kind of spontaneous load experimental rig Download PDF

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Publication number
CN106404518B
CN106404518B CN201610916111.6A CN201610916111A CN106404518B CN 106404518 B CN106404518 B CN 106404518B CN 201610916111 A CN201610916111 A CN 201610916111A CN 106404518 B CN106404518 B CN 106404518B
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connecting rod
iron
rope
controller
horizontal iron
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CN106404518A (en
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田黎敏
魏建鹏
王文斌
郝际平
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Xi'an Huaqing Science And Education Industry Group Co ltd
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Xian University of Architecture and Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/303Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

本发明公开了一种突加荷载试验装置,包括支架、拉力传感器、索力调节装置、断索装置、重力加载装置及控制器,其中,索力调节装置的上端与支架的顶部相连接,索力调节装置的输出端通过绳索与拉力传感器的上端相连接,拉力传感器的下端与断索装置的上端相连接,断索装置的下端与重力加载装置的上端相连接,重力加载装置的下端面与试件的上表面相接触,其中,拉力传感器的输出端与控制器的输入端相连接,控制器的输出端与索力调节装置的控制端相连接,该装置能够对试件的瞬间抗压强度进行定量分析。

The invention discloses a sudden load test device, which comprises a bracket, a tension sensor, a cable force adjusting device, a cable breaking device, a gravity loading device and a controller, wherein the upper end of the cable force adjusting device is connected with the top of the bracket, and the cable The output end of the force adjusting device is connected to the upper end of the tension sensor through a rope, the lower end of the tension sensor is connected to the upper end of the cable breaking device, the lower end of the cable breaking device is connected to the upper end of the gravity loading device, and the lower end of the gravity loading device is connected to the upper end of the gravity loading device. The upper surface of the test piece is in contact, wherein the output end of the tension sensor is connected to the input end of the controller, and the output end of the controller is connected to the control end of the cable force adjustment device, which can withstand the instantaneous compression of the test piece. Quantitative analysis of strength.

Description

一种突加荷载试验装置A sudden load test device

技术领域technical field

本发明属于试验性能检测设备领域,涉及一种荷载试验装置,具体涉及一种突加荷载试验装置。The invention belongs to the field of test performance testing equipment, and relates to a load test device, in particular to a sudden load test device.

背景技术Background technique

测量试件在突加荷载时的动力特性及极限承载力,现有技术的测量过程为:先将重物吊起,其中,重物正对试件,再将重物下落掉落到试件上,实现对试件在突加荷载时的动力特性及极限承载力的测量,然而重物对试件的作用与重物的高度及重量之间呈非线性关系,因此不能精确地测量出重物对试件的作用力,从而不能准确的测量出试件输入的能量,进而不能测量试件在突加荷载时的动力特性及极限承载力。To measure the dynamic characteristics and ultimate bearing capacity of the test piece under sudden load, the measurement process in the prior art is: first lift the heavy object, wherein the heavy object is facing the test piece, and then drop the heavy object to the test piece On the other hand, the measurement of the dynamic characteristics and ultimate bearing capacity of the specimen under sudden load is realized. However, there is a nonlinear relationship between the effect of the heavy object on the specimen and the height and weight of the heavy object, so the weight cannot be accurately measured. The force exerted by the object on the specimen, so that the energy input by the specimen cannot be accurately measured, and the dynamic characteristics and ultimate bearing capacity of the specimen under sudden load cannot be measured.

发明内容Contents of the invention

本发明的目的在于克服上述现有技术的缺点,提供了一种突加荷载试验装置,该装置能够准确对试件在突加荷载时的动力特性及极限承载力进行测量。The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a sudden load test device, which can accurately measure the dynamic characteristics and ultimate bearing capacity of the test piece when the sudden load is applied.

为达到上述目的,本发明所述的突加荷载试验装置包括支架、拉力传感器、索力调节装置、断索装置、重力加载装置及控制器,其中,索力调节装置的上端与支架的顶部相连接,索力调节装置的输出端通过绳索与拉力传感器的上端相连接,拉力传感器的下端与断索装置的上端相连接,断索装置的下端与重力加载装置的上端相连接,重力加载装置的下端面与试件的上表面相接触,其中,拉力传感器的输出端与控制器的输入端相连接,控制器的输出端与索力调节装置的控制端相连接。In order to achieve the above object, the sudden load test device of the present invention comprises a bracket, a tension sensor, a cable force regulating device, a cable breaking device, a gravity loading device and a controller, wherein the upper end of the cable force regulating device is connected to the top of the support. connection, the output end of the cable force adjusting device is connected with the upper end of the tension sensor through the rope, the lower end of the tension sensor is connected with the upper end of the cable breaking device, the lower end of the cable breaking device is connected with the upper end of the gravity loading device, and the The lower end surface is in contact with the upper surface of the test piece, wherein the output end of the tension sensor is connected with the input end of the controller, and the output end of the controller is connected with the control end of the cable force adjusting device.

所述索力调节装置包括电动机、收线轮以及用于提供电能的电源,其中,电动机的控制端与控制器的输出端相连接,收线轮套接于电动机的输出轴上,绳索的上端沿周向缠绕于收线轮上,绳索的下端与拉力传感器的上端相连接。The cable force adjusting device includes a motor, a take-up wheel and a power supply for providing electric energy, wherein the control end of the motor is connected to the output end of the controller, the take-up wheel is sleeved on the output shaft of the motor, and the upper end of the rope Wrapped around the take-up wheel in the circumferential direction, the lower end of the rope is connected with the upper end of the tension sensor.

索力调节装置为电液伺服作动器,电液伺服作动器与拉力传感器的上端相连接,电液伺服作动器的控制端与控制器的输出端相连接。The cable force adjusting device is an electro-hydraulic servo actuator, the electro-hydraulic servo actuator is connected with the upper end of the tension sensor, and the control end of the electro-hydraulic servo actuator is connected with the output end of the controller.

所述断索装置包括第一拉索、上连接杆、下连接杆、第一环形套圈、第二环形套圈及第二拉索,其中,上连接杆的中部与拉力传感器的下端相连接,下连接杆的中部与重力加载装置相连接,上连接杆的一端及下连接杆的一端均套接于第一环形套圈内,上连接杆的另一端及下连接杆的另一端均套接于第二环形套圈内,第一拉索的一端与支架的侧面相连接,第一拉索的另一端与第一环形套圈相连接,第二拉索与第二环形套圈相连接。The cable breaking device includes a first cable, an upper connecting rod, a lower connecting rod, a first annular collar, a second annular collar and a second cable, wherein the middle part of the upper connecting rod is connected to the lower end of the tension sensor , the middle part of the lower connecting rod is connected with the gravity loading device, one end of the upper connecting rod and one end of the lower connecting rod are both sleeved in the first annular ferrule, and the other end of the upper connecting rod and the other end of the lower connecting rod are both sleeved Connected in the second annular collar, one end of the first cable is connected to the side of the bracket, the other end of the first cable is connected to the first annular collar, and the second cable is connected to the second annular collar .

所述断索装置为电子锁,电子锁的控制端与控制器的输出端相连接。The cable breaking device is an electronic lock, and the control terminal of the electronic lock is connected with the output terminal of the controller.

所述断索装置包括第一铁杆、第二铁杆、线圈、开关及电源,其中,线圈缠绕于第一铁杆的侧面,第一铁杆的上端与拉力传感器的下端相连接,第二铁杆的下端与重力加载装置相连接,电源、开关及线圈组成串联回路,开关的控制端与控制器的输出端相连接。The cable breaking device includes a first iron rod, a second iron rod, a coil, a switch and a power supply, wherein the coil is wound on the side of the first iron rod, the upper end of the first iron rod is connected to the lower end of the tension sensor, and the lower end of the second iron rod is connected to the lower end of the tension sensor. The gravity loading device is connected, the power supply, the switch and the coil form a series loop, and the control end of the switch is connected with the output end of the controller.

所述断索装置包括上套筒、下套筒及弹性卡件,其中,上套筒的上端与拉力传感器的下端相连接,下套筒的下端与重力加载装置的上端相连接,下套筒的上部套接于上套筒的下部内,且上套筒的侧面开设有通孔,其中,弹性卡件的一端与下套筒的上端面相连接,弹性卡件的另一端插入于通孔内将下套筒与上套筒相连接。The cable breaking device includes an upper sleeve, a lower sleeve and an elastic clip, wherein the upper end of the upper sleeve is connected with the lower end of the tension sensor, the lower end of the lower sleeve is connected with the upper end of the gravity loading device, and the lower sleeve is connected with the upper end of the gravity loading device. The upper part of the upper sleeve is socketed in the lower part of the upper sleeve, and a through hole is opened on the side of the upper sleeve, wherein, one end of the elastic clip is connected with the upper end surface of the lower sleeve, and the other end of the elastic clip is inserted into the through hole Connect the lower sleeve to the upper sleeve.

所述断索装置包括第一横铁杆、第二横铁杆、铁块、绕组线圈、绕组开关及绕组电源,第一横铁杆的一端与第二横铁杆的一端相铰接,绕组线圈缠绕于铁块上,绕组线圈、绕组开关及绕组电源依次串联连接,第二横铁杆的另一端与铁块的一端通过磁力相连接,第一横铁杆的另一端与铁块的另一端通过磁力相连接,绕组开关的控制端与控制器的输出端相连接;The cable breaking device includes a first horizontal iron rod, a second horizontal iron rod, an iron block, a winding coil, a winding switch and a winding power supply, one end of the first horizontal iron rod is hinged to one end of the second horizontal iron rod, and the winding coil is wound on the iron block Above, the winding coil, the winding switch and the winding power supply are sequentially connected in series, the other end of the second horizontal iron rod is magnetically connected to one end of the iron block, the other end of the first horizontal iron rod is magnetically connected to the other end of the iron block, and the winding The control terminal of the switch is connected with the output terminal of the controller;

拉力传感器与第一横铁杆的侧面相连接,重力加载装置与第二横铁杆的侧面相连接,第一横铁杆与第二横铁杆及拉力传感器相连接的位置位于第一横铁杆的同一侧;第二横铁杆与第一横铁杆及重力加载装置相连接的位置位于第二横铁杆的同一侧。The tension sensor is connected to the side of the first horizontal iron, the gravity loading device is connected to the side of the second horizontal iron, and the position where the first horizontal iron is connected to the second horizontal iron and the tension sensor is located on the same side of the first horizontal iron; The position where the second horizontal iron rod is connected with the first horizontal iron rod and the gravity loading device is located on the same side of the second horizontal iron rod.

重力加载装置包括第一连杆及第二连杆,第一连杆的中部与第二连杆的中部相连接,且第一连杆与第二连杆呈十字形分布,第一连杆与第二连杆相连接位置的上部与断索装置的下端相连接,第一连杆的两端、第二连杆的两端、以及第一连杆与第二连杆相连接位置的底部均固定有重物。The gravity loading device includes a first connecting rod and a second connecting rod, the middle part of the first connecting rod is connected with the middle part of the second connecting rod, and the first connecting rod and the second connecting rod are distributed in a cross shape, and the first connecting rod and the second connecting rod are arranged in a cross shape. The upper part of the connecting position of the second connecting rod is connected with the lower end of the cable breaking device, the two ends of the first connecting rod, the two ends of the second connecting rod, and the bottom of the connecting position of the first connecting rod and the second connecting rod are all connected. There are heavy objects fixed.

控制器输出端还连接有报警器。The output terminal of the controller is also connected with an alarm.

本发明具有以下有益效果:The present invention has the following beneficial effects:

本发明突加荷载试验装置在具体操作时,拉力传感器将采集的拉力信号转发至控制器中,当拉力传感器检测的拉力大于等于断索装置与重力加载装置的总重力时,则控制索力调节装置下方绳索,使重力加载装置、断索装置及拉力传感器下降,当拉力传感器检测的拉力刚刚小于断索装置与重力加载装置的总重力时,则控制索力调节装置停止工作,此时,重力加载装置的下端面刚好与试件相接触,且重力加载装置与试件之间的受力可忽律不计,用户即可打开断索装置,使重力加载装置的重力突然加载在试件上,从而在试件上施加瞬间压力,其中重力加载装置对试件施加的瞬间压力等于重力加载装置的自身重力,实现对试件在突加荷载时的动力特性及极限承载力进行测量。During the specific operation of the sudden load test device of the present invention, the tension sensor forwards the collected tension signal to the controller, and when the tension detected by the tension sensor is greater than or equal to the total gravity of the cable breaking device and the gravity loading device, the cable force is adjusted. The rope below the device lowers the gravity loading device, the cable breaking device and the tension sensor. When the pulling force detected by the tension sensor is just less than the total gravity of the cable breaking device and the gravity loading device, the cable force regulating device is controlled to stop working. At this time, the gravity The lower end surface of the loading device is just in contact with the test piece, and the force between the gravity loading device and the test piece is negligible, the user can open the cable breaking device, so that the gravity of the gravity loading device is suddenly loaded on the test piece, Thereby exerting instantaneous pressure on the test piece, wherein the momentary pressure exerted by the gravity loading device on the test piece is equal to the gravity of the gravity loading device itself, so as to realize the measurement of the dynamic characteristics and ultimate bearing capacity of the test piece when the sudden load is applied.

进一步,通过控制器与断索装置的控制开关相连接,实现对断索装置的自动控制,避免人为因素对测试的影响。Further, by connecting the controller with the control switch of the cable breaking device, the automatic control of the cable breaking device is realized, and the influence of human factors on the test is avoided.

附图说明Description of drawings

图1为本发明的结构示意图;Fig. 1 is a structural representation of the present invention;

图2为断索装置3的一种结构示意图;Fig. 2 is a kind of structural representation of breaking rope device 3;

图3为断索装置3的另一种结构示意图;Fig. 3 is another structural schematic view of the cable breaking device 3;

图4为断索装置3的另一种结构示意图;Fig. 4 is another structural schematic diagram of the cable breaking device 3;

图5为断索装置3的另一种结构示意图。FIG. 5 is another structural schematic diagram of the cable breaking device 3 .

其中,1为索力调节装置、2为拉力传感器、3为断索装置、4为重力加载装置、5为上套筒、6为下套筒、7为弹性卡件、8为第一铁杆、9为第二铁杆、10为开关、11为线圈、12为上连接杆、13为下连接杆、14为第一环形套圈、15为第二环形套圈、16为第一拉索、17为第二拉索、18为第一横铁杆、19为第二横铁杆。Among them, 1 is the cable force adjusting device, 2 is the tension sensor, 3 is the cable breaking device, 4 is the gravity loading device, 5 is the upper sleeve, 6 is the lower sleeve, 7 is the elastic clip, 8 is the first iron rod, 9 is the second iron rod, 10 is the switch, 11 is the coil, 12 is the upper connecting rod, 13 is the lower connecting rod, 14 is the first annular ferrule, 15 is the second annular ferrule, 16 is the first dragline, 17 It is the second dragline, 18 is the first horizontal iron rod, and 19 is the second horizontal iron rod.

具体实施方式Detailed ways

下面结合附图对本发明做进一步详细描述:The present invention is described in further detail below in conjunction with accompanying drawing:

参考图1,本发明所述的突加荷载试验装置包括支架、拉力传感器2、索力调节装置1、断索装置3、重力加载装置4及控制器,其中,索力调节装置1的上端与支架的顶部相连接,索力调节装置1的输出端通过绳索与拉力传感器2的上端相连接,拉力传感器2的下端与断索装置3的上端相连接,断索装置3的下端与重力加载装置4的上端相连接,重力加载装置4的下端面与试件的上表面相接触,其中,拉力传感器2的输出端与控制器的输入端相连接,控制器的输出端与索力调节装置1的控制端相连接。With reference to Fig. 1, the sudden load test device of the present invention comprises support, tension sensor 2, cable force regulating device 1, broken cable device 3, gravity loading device 4 and controller, wherein, the upper end of cable force regulating device 1 and The top of the bracket is connected, the output end of the cable force adjusting device 1 is connected to the upper end of the tension sensor 2 through a rope, the lower end of the tension sensor 2 is connected to the upper end of the cable breaking device 3, and the lower end of the cable breaking device 3 is connected to the gravity loading device. 4, the lower end surface of the gravity loading device 4 is in contact with the upper surface of the test piece, wherein the output end of the tension sensor 2 is connected to the input end of the controller, and the output end of the controller is connected to the cable force adjustment device 1 connected to the control terminal.

所述索力调节装置1包括电动机、收线轮以及用于提供电能的电源,其中,电动机的控制端与控制器的输出端相连接,收线轮套接于电动机的输出轴上,绳索的上端沿周向缠绕于收线轮上,绳索的下端与拉力传感器2的上端相连接。The cable force adjusting device 1 includes a motor, a take-up wheel and a power supply for providing electric energy, wherein the control end of the motor is connected to the output end of the controller, the take-up wheel is sleeved on the output shaft of the motor, and the rope The upper end is wound on the take-up wheel in the circumferential direction, and the lower end of the rope is connected with the upper end of the tension sensor 2 .

索力调节装置1为电液伺服作动器,电液伺服作动器与拉力传感器2的上端相连接,电液伺服作动器的控制端与控制器的输出端相连接。The cable force adjusting device 1 is an electro-hydraulic servo actuator connected to the upper end of the tension sensor 2, and the control end of the electro-hydraulic servo actuator is connected to the output end of the controller.

重力加载装置4包括第一连杆及第二连杆,第一连杆的中部与第二连杆的中部相连接,且,第一连杆与第二连杆呈十字形分布,第一连杆与第二连杆相连接位置的上部与断索装置3的下端相连接,第一连杆的两端、第二连杆的两端、以及第一连杆与第二连杆相连接位置的底部均固定有重物。The gravity loading device 4 comprises a first connecting rod and a second connecting rod, the middle part of the first connecting rod is connected with the middle part of the second connecting rod, and the first connecting rod and the second connecting rod are distributed in a cross shape, and the first connecting rod The upper part of the connecting position of the rod and the second connecting rod is connected with the lower end of the cable breaking device 3, the two ends of the first connecting rod, the two ends of the second connecting rod, and the connecting position of the first connecting rod and the second connecting rod There are heavy objects fixed at the bottom.

本发明还包括保险绳或临时固定栓,保险绳的两端分别与与断索装置3的上下两端相连接,临时固定栓的两端分别与断索装置(3)的上下两端相连接。The present invention also includes a safety rope or a temporary fixing bolt, the two ends of the safety rope are respectively connected with the upper and lower ends of the cable breaking device 3, and the two ends of the temporary fixing bolt are respectively connected with the upper and lower ends of the cable breaking device (3) .

本发明的具体工作过程为:Concrete work process of the present invention is:

用于先将断索装置3与重力加载装置4的总重力输入到控制器中,在试验过程中,拉力传感器2实时将采集的拉力信号转发至控制器中,当断索装置3与重力加载装置4的总重力大于等于拉力传感器2测量的拉力时,则控制器控制索力调节装置1下放绳索,使重力加载装置4、断索装置3及拉力传感器2下降,当拉力传感器2检测的拉力刚刚小于断索装置3与重力加载装置4的总重力时,则控制索力调节装置1停止工作,此时重力加载装置4的下端面刚好与试件的上表面相接触,重力加载装置与试件之间的受力可忽律不计,控制器控制报警器报警,并断开断索装置3,使重力加载装置4的重力突然加载在试件上,本发明中断索装置3的断开方式有以下几种:It is used to first input the total gravity of the cable breaking device 3 and the gravity loading device 4 into the controller. During the test, the tension sensor 2 forwards the collected tension signal to the controller in real time. When the cable breaking device 3 and the gravity loading device When the total gravity of the device 4 is greater than or equal to the tension measured by the tension sensor 2, the controller controls the cable force adjusting device 1 to lower the rope, so that the gravity loading device 4, the cable breaking device 3 and the tension sensor 2 are lowered. When it is just less than the total gravity of the cable breaking device 3 and the gravity loading device 4, the cable force adjusting device 1 is controlled to stop working. The force between the parts can be ignored, the controller controls the alarm to alarm, and disconnects the cable breaking device 3, so that the gravity of the gravity loading device 4 is suddenly loaded on the test piece. The disconnecting method of the cable breaking device 3 in the present invention There are the following types:

1)所述断索装置3包括保险绳、第一铁杆8、第二铁杆9、线圈11、开关10及电源,其中,线圈11缠绕于第一铁杆8的侧面,第一铁杆8的上端与拉力传感器2的下端相连接,第二铁杆9的下端与重力加载装置4相连接,电源、开关10及线圈11组成串联回路,开关10的控制端与控制器的输出端相连接,保险绳的一端与第一铁杆8的上部相连接,保险绳的下端与第二铁杆9的下部相连接,断开断索装置3时,控制器控制开关10断开,使线圈11断电,从而使第一铁杆8失去磁力,实现第一铁杆8与第二铁杆9的断开;1) The cable breaking device 3 includes a safety rope, a first iron rod 8, a second iron rod 9, a coil 11, a switch 10 and a power supply, wherein the coil 11 is wound on the side of the first iron rod 8, and the upper end of the first iron rod 8 is connected to the The lower end of the tension sensor 2 is connected, the lower end of the second iron rod 9 is connected with the gravity loading device 4, the power supply, the switch 10 and the coil 11 form a series circuit, the control end of the switch 10 is connected with the output end of the controller, and the safety rope One end is connected with the upper part of the first iron rod 8, and the lower end of the safety rope is connected with the lower part of the second iron rod 9. When the cable breaking device 3 is disconnected, the controller controls the switch 10 to be disconnected, so that the coil 11 is powered off, so that the second An iron rod 8 loses its magnetic force, realizing the disconnection of the first iron rod 8 and the second iron rod 9;

2)所述断索装置3包括上套筒5、下套筒6及弹性卡件7,其中,上套筒5的上端与拉力传感器2的下端相连接,下套筒6的下端与重力加载装置4的上端相连接,下套筒6的上部套接于上套筒5的下部内,且上套筒5的侧面开设有通孔,其中,弹性卡件7的一端与下套筒6的上端面相连接,弹性卡件7的另一端插入于通孔内将下套筒6与上套筒5相连接,断开断索装置3时,用户按压弹性卡件7,使弹性卡件7伸出到通孔外,使下套筒6从上套筒5中滑落下去,实现断索装置3的断开;2) The cable breaking device 3 includes an upper sleeve 5, a lower sleeve 6 and an elastic clip 7, wherein the upper end of the upper sleeve 5 is connected to the lower end of the tension sensor 2, and the lower end of the lower sleeve 6 is connected to the gravity load The upper end of the device 4 is connected, the upper part of the lower sleeve 6 is sleeved in the lower part of the upper sleeve 5, and the side of the upper sleeve 5 is provided with a through hole, wherein one end of the elastic clip 7 is connected to the lower sleeve 6 The upper ends are connected, and the other end of the elastic clip 7 is inserted into the through hole to connect the lower sleeve 6 with the upper sleeve 5. When the cable breaking device 3 is disconnected, the user presses the elastic clip 7 to make the elastic clip 7 stretch. Out of the through hole, the lower sleeve 6 slides down from the upper sleeve 5 to realize the disconnection of the cable breaking device 3;

3)所述断索装置3为电子锁,电子锁的控制端与控制器的输出端相连接,断开断索装置3时,控制器控制电子锁打开,实现断索装置3的断开;3) The cable breaking device 3 is an electronic lock, and the control end of the electronic lock is connected to the output terminal of the controller. When the cable breaking device 3 is disconnected, the controller controls the electronic lock to open to realize the disconnection of the cable breaking device 3;

4)所述断索装置3包括第一拉索16、上连接杆12、下连接杆13、第一环形套圈14、第二环形套圈15及第二拉索17,其中,上连接杆12的中部与拉力传感器2的下端相连接,下连接杆13的中部与重力加载装置4相连接,上连接杆12的一端及下连接杆13的一端均套接于第一环形套圈14内,上连接杆12的另一端及下连接杆13的另一端均套接于第二环形套圈15内,第一拉索16的一端与支架的侧面相连接,第一拉索16的另一端与第一环形套圈14相连接,第二拉索17与第二环形套圈15相连接。当需要断开断索装置3时,用户手拉第二拉索17,使上连接杆12及下连接杆13脱离第一环形套圈14及第二环形套圈15,实现上连接杆12与下连接杆13的分离,实现断索装置3的断开。4) The cable breaking device 3 includes a first cable 16, an upper connecting rod 12, a lower connecting rod 13, a first annular collar 14, a second annular collar 15 and a second cable 17, wherein the upper connecting rod The middle part of 12 is connected with the lower end of the tension sensor 2, the middle part of the lower connecting rod 13 is connected with the gravity loading device 4, and one end of the upper connecting rod 12 and one end of the lower connecting rod 13 are both sleeved in the first annular ferrule 14 , the other end of the upper connecting rod 12 and the other end of the lower connecting rod 13 are sleeved in the second annular ferrule 15, one end of the first cable 16 is connected with the side of the bracket, the other end of the first cable 16 It is connected with the first annular collar 14 , and the second cable 17 is connected with the second annular collar 15 . When the cable breaking device 3 needs to be disconnected, the user pulls the second cable 17 by hand, so that the upper connecting rod 12 and the lower connecting rod 13 are separated from the first annular collar 14 and the second annular collar 15, so that the upper connecting rod 12 and the second annular collar 15 are separated from each other. The separation of the lower connecting rod 13 realizes the disconnection of the cable breaking device 3 .

5)所述断索装置3包括第一横铁杆18、第二横铁杆19、铁块、绕组线圈、绕组开关及绕组电源,第一横铁杆18的一端与第二横铁杆19的一端相铰接,绕组线圈缠绕于铁块上,绕组线圈、绕组开关及绕组电源依次串联连接,第二横铁杆19的另一端与铁块的一端通过磁力相连接,第一横铁杆18的另一端与铁块的另一端通过磁力相连接,绕组开关的控制端与控制器的输出端相连接;拉力传感器2与第一横铁杆18的侧面相连接,重力加载装置4与第二横铁杆19的侧面相连接,第一横铁杆18与第二横铁杆19及拉力传感器2相连接的位置位于第一横铁杆18的同一侧;第二横铁杆19与第一横铁杆18及重力加载装置4相连接的位置位于第二横铁杆19的同一侧。在工作时,绕组开关闭合,第二横铁杆19与第一横铁杆18通过磁力连接,当断开断索装置3时,控制器控制绕组开关断开,从而使第二横铁杆19与第一横铁杆18分离,由于第一横铁杆18的一端与第一竖向支杆的侧面相铰接,从而使重力加载装置4的重力加载到试件上。5) The cable breaking device 3 includes a first horizontal iron rod 18, a second horizontal iron rod 19, an iron block, a winding coil, a winding switch and a winding power supply, and one end of the first horizontal iron rod 18 is hinged to one end of the second horizontal iron rod 19 , the winding coil is wound on the iron block, the winding coil, the winding switch and the winding power supply are sequentially connected in series, the other end of the second horizontal iron rod 19 is magnetically connected to one end of the iron block, and the other end of the first horizontal iron rod 18 is connected to the iron block The other end of the winding switch is connected by magnetic force, the control end of the winding switch is connected with the output end of the controller; the tension sensor 2 is connected with the side of the first horizontal iron rod 18, and the gravity loading device 4 is connected with the side of the second horizontal iron rod 19 , the position where the first cross iron rod 18 is connected with the second cross iron rod 19 and the tension sensor 2 is located on the same side of the first cross iron rod 18; the position where the second cross iron rod 19 is connected with the first cross iron rod 18 and the gravity loading device 4 Located on the same side of the second cross iron 19. When working, the winding switch is closed, and the second horizontal iron rod 19 is connected to the first horizontal iron rod 18 by magnetic force. The horizontal iron rod 18 is separated, and since one end of the first horizontal iron rod 18 is hinged with the side of the first vertical strut, the gravity of the gravity loading device 4 is loaded on the test piece.

Claims (10)

1. a kind of spontaneous load experimental rig, which is characterized in that including holder, pulling force sensor (2), rope apparatus for adjusting force (1), Disconnected rope device (3), gravitational load device (4) and controller, wherein the upper end of rope apparatus for adjusting force (1) and the top phase of holder Connection, the output end of rope apparatus for adjusting force (1) are connected by rope with the upper end of pulling force sensor (2), pulling force sensor (2) Lower end be connected with the upper end of disconnected rope device (3), the lower end of disconnected rope device (3) is connected with the upper end of gravitational load device (4) It connects, the lower face of gravitational load device (4) is in contact with the upper surface of test specimen, wherein the output end of pulling force sensor (2) and control The input terminal of device processed is connected, and the output end of controller is connected with the control terminal of rope apparatus for adjusting force (1).
2. spontaneous load experimental rig according to claim 1, which is characterized in that the rope apparatus for adjusting force (1) includes Motor, take-up pulley and the power supply for providing electric energy, wherein the control terminal of motor is connected with the output end of controller It connects, take-up pulley is socketed on the output shaft of motor, and the upper end edge of rope is circumferentially wound on take-up pulley, the lower end of rope and drawing The upper end of force snesor (2) is connected.
3. spontaneous load experimental rig according to claim 1, which is characterized in that rope apparatus for adjusting force (1) is electro-hydraulic watches Actuator is taken, electro-hydraulic servo actuator is connected with the upper end of pulling force sensor (2), the control terminal of electro-hydraulic servo actuator and control The output end of device processed is connected.
4. spontaneous load experimental rig according to claim 1, which is characterized in that the disconnected rope device (3) includes first Drag-line (16), upper connecting rod (12), lower connecting rod (13), first annular lasso (14), the second annular collar (15) and second are drawn Rope (17), wherein the middle part of upper connecting rod (12) is connected with the lower end of pulling force sensor (2), the middle part of lower connecting rod (13) It is connected with gravitational load device (4), one end of upper connecting rod (12) and one end of lower connecting rod (13) are socketed on the first ring In shape lasso (14), the other end of upper connecting rod (12) and the other end of lower connecting rod (13) are socketed on the second annular collar (15) in, one end of the first drag-line (16) is connected with the side of holder, the other end and the first annular set of the first drag-line (16) Circle (14) is connected, and the second drag-line (17) is connected with the second annular collar (15).
5. spontaneous load experimental rig according to claim 1, which is characterized in that the disconnected rope device (3) is electronic lock, The control terminal of electronic lock is connected with the output end of controller.
6. spontaneous load experimental rig according to claim 1, which is characterized in that the disconnected rope device (3) includes first Iron (8), the second iron (9), coil (11), switch (10) and power supply, wherein coil (11) is wound in the first iron (8) The upper end of side, the first iron (8) is connected with the lower end of pulling force sensor (2), the lower end of the second iron (9) and gravitational load Device (4) is connected, power supply, switch (10) and coil (11) form series loop, switchs the control terminal and controller of (10) Output end is connected.
7. spontaneous load experimental rig according to claim 1, which is characterized in that the disconnected rope device (3) includes upper set Cylinder (5), lower sleeve (6) and flexible clamp piece (7), wherein the upper end of upper bush (5) is connected with the lower end of pulling force sensor (2), The lower end of lower sleeve (6) is connected with the upper end of gravitational load device (4), and the upper socket of lower sleeve (6) is in upper bush (5) In lower part, and the side of upper bush (5) offers through-hole, wherein the upper surface of one end and lower sleeve (6) of flexible clamp piece (7) It is connected, the other end of flexible clamp piece (7), which is inserted in through-hole, is connected lower sleeve (6) with upper bush (5).
8. spontaneous load experimental rig according to claim 1, which is characterized in that the disconnected rope device (3) includes first Horizontal iron (18), the second horizontal iron (19), iron block, winding coil, winding switch and winding power supply, the one of the first horizontal iron (18) One end with the second horizontal iron (19) is held to be hinged, winding coil is wound on iron block, winding coil, winding switch and winding electricity Source is sequentially connected in series, and the other end of the second horizontal iron (19) is connected with one end of iron block by magnetic force, the first horizontal iron (18) the other end is connected with the other end of iron block by magnetic force, and the control terminal of winding switch is connected with the output end of controller It connects;
Pulling force sensor (2) is connected with the side of the first horizontal iron (18), gravitational load device (4) and the second horizontal iron (19) Side be connected, the position that the first horizontal iron (18) is connected with the second horizontal iron (19) and pulling force sensor (2) is located at the The same side of one horizontal iron (18);Second horizontal iron (19) is connected with the first horizontal iron (18) and gravitational load device (4) Position is located at the same side of the second horizontal iron (19).
9. spontaneous load experimental rig according to claim 1, which is characterized in that gravitational load device (4) includes first Connecting rod and second connecting rod are connected in the middle part of the middle part of first connecting rod and second connecting rod, and first connecting rod and second connecting rod are in ten Font is distributed, and be connected with the second connecting rod top of position of first connecting rod is connected with the lower end of disconnected rope device (3), first connecting rod Both ends, second connecting rod both ends and be connected with the second connecting rod bottom of position of first connecting rod be respectively and fixedly provided with weight.
10. spontaneous load experimental rig according to claim 1, which is characterized in that controller output end is also associated with report Alert device.
CN201610916111.6A 2016-10-20 2016-10-20 A kind of spontaneous load experimental rig Expired - Fee Related CN106404518B (en)

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CN111947836B (en) * 2020-08-17 2022-05-27 哈电发电设备国家工程研究中心有限公司 A test device and method for simulating sudden unbalance fault of rotor system
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