CN102944411B - Mine carrier roller dynamic property experiment table - Google Patents
Mine carrier roller dynamic property experiment table Download PDFInfo
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Abstract
本发明公开的一种矿用托辊动态性能实验台，包括驱动装置、皮带传动装置、力加载装置、托辊固定架、摩擦轮支起装置、数据采集器、变频控制器和传感器。该实验台通过皮带传动装置和摩擦轮将电动机的动力传递至托辊，通过力加载装置对摩擦轮、托辊之间的压力进行控制，通过变频控制器对电动机转速进行控制，实现对托辊不同工况的模拟，传感器在线检测托辊的运转信号，对托辊运转信号的分析处理得到托辊的动态性能和参数。该实验台通用性好，适用于不同尺寸和不同安装结构的托辊，托辊运行受力均匀，检测结果精度较高，对于托辊的质量检测、故障诊断和设计改进具有实用意义。
The invention discloses a dynamic performance test bench for a mining roller, comprising a driving device, a belt transmission device, a force loading device, a roller fixing frame, a friction wheel supporting device, a data collector, a frequency conversion controller and a sensor. The test bench transmits the power of the motor to the idler roller through the belt transmission device and the friction wheel, controls the pressure between the friction wheel and the idler roller through the force loading device, and controls the motor speed through the frequency conversion controller to realize the control of the idler roller. For the simulation of different working conditions, the sensor detects the running signal of the idler roller online, and analyzes and processes the running signal of the idler roller to obtain the dynamic performance and parameters of the idler roller. The test bench has good versatility and is suitable for rollers of different sizes and different installation structures. The rollers are evenly stressed and the detection results are highly accurate. It is of practical significance for the quality inspection, fault diagnosis and design improvement of rollers.
Description
技术领域 technical field
本发明涉及一种矿用托辊动态性能实验台，特别是一种对矿用托辊不同工况下的运行状态进行检测的实验台，以实现对不同矿用托辊运行时振动、扭矩和轴心轨迹的测试。 The invention relates to a dynamic performance test bench for mining rollers, in particular to a test bench for detecting the running state of mining rollers under different working conditions, so as to realize the vibration, torque and Axis track test.
背景技术 Background technique
托辊是带式输送机上的重要部件，不仅种类多，而且数量大，托辊承受了带式输送机70%以上的工作阻力。由于煤矿生产现场的环境恶劣，带式输送机上的托辊会频繁损坏，其常见损坏形式是轴承损坏后卡死或导致轴承座与管体脱开，托辊管壁磨穿，轴承转动不灵活或密封不好引起轴承被污染而发出刺耳噪音或轴承卡死、费电、磨损皮带。托辊的作用是支撑输送带和物料重量，因而托辊运转必须灵活可靠，托辊的故障会引起带式输送机的跑偏和皮带撕裂等恶性故障，对煤矿的日常生产产生严重的影响，因此托辊的质量尤为重要。虽然托辊在带式输送机中是一个较小部件，结构并不复杂，但制造出高质量的托辊并不容易，托辊质量的直接体现就是托辊的使用寿命。为了设计出符合使用要求的托辊，需要在设计制造过程中对托辊进行检测和实验，模拟托辊实际运行过程，并在实验过程中采集托辊的动态数据进行分析，及时发现产品在设计和制造上的不足，从根本上解决缺陷和不足之处，提高生产制造技术，改变托辊的质量。 The idler roller is an important part of the belt conveyor. It not only has many types, but also has a large number. The idler roller bears more than 70% of the working resistance of the belt conveyor. Due to the harsh environment of the coal mine production site, the idler rollers on the belt conveyor will be frequently damaged. The common form of damage is that the bearing is stuck after damage or the bearing seat is disengaged from the pipe body, the pipe wall of the idler is worn out, and the bearing rotation is not flexible. Or poor sealing causes the bearing to be polluted and make harsh noises or the bearing is stuck, consumes electricity, and wears the belt. The role of the idler is to support the conveyor belt and the weight of the material, so the operation of the idler must be flexible and reliable. The failure of the idler will cause malignant faults such as deviation of the belt conveyor and belt tearing, which will have a serious impact on the daily production of the coal mine. , so the quality of the roller is particularly important. Although the idler roller is a small part in the belt conveyor and its structure is not complicated, it is not easy to manufacture high-quality idler rollers. The direct reflection of the quality of the idler rollers is the service life of the idler rollers. In order to design idlers that meet the requirements of use, it is necessary to test and experiment the idlers during the design and manufacturing process, simulate the actual operation process of the idlers, and collect the dynamic data of the idlers during the experiment for analysis, so as to find out in time whether the product is in the design process. And the deficiencies in manufacturing, fundamentally solve the defects and deficiencies, improve the production and manufacturing technology, and change the quality of the roller.
目前针对矿用托辊而设计的检测实验台测试功能单一，在一个托辊测试实验台上只能完成一种性能参数如旋转阻力、轴向载荷、径向圆跳动的测试。并且目前还没有针对托辊的动态性能如旋转振动、扭矩和轴心轨迹等方面的测试实验台，而这些性能参数又是托辊的重要性能参数，根据这几项测试数据可以提取托辊的运行状态与故障状态，对于托辊的设计改进具有重要作用。目前的托辊实验台一般设计简单、适用范围较小，无法有效模拟矿用托辊实际工况，在使用与检测过程中有诸多不便，因而设计一种集多种功能于一体的托辊动态性能实验台具有实际意义。 At present, the detection test bench designed for mining rollers has a single test function, and only one performance parameter such as rotation resistance, axial load, and radial circular runout can be tested on one idler test bench. And there is no test bench for the dynamic performance of the idler, such as rotational vibration, torque and axis trajectory, and these performance parameters are important performance parameters of the idler. According to these test data, the idler's performance can be extracted The operating state and fault state play an important role in the design improvement of idlers. The current roller test bench is generally simple in design and limited in scope of application, and cannot effectively simulate the actual working conditions of mining rollers. There are many inconveniences in the process of use and testing. The performance test bench has practical significance.
发明内容 Contents of the invention
技术问题：本发明的目的是提供一种矿用托辊动态性能实验台，实现对不同矿用托辊的检测和实验，测试其在不同工况下运行的振动、扭矩和轴心轨迹。 Technical problem: The purpose of this invention is to provide a dynamic performance test bench for mining rollers, which can realize the detection and experiment of different mining rollers, and test their vibration, torque and axis trajectory under different working conditions.
技术方案：本发明的矿用托辊动态性能实验台，包括数据采集器，由电动机、弹性柱销联轴器、减速器、凸缘联轴器构成的驱动装置，所述的驱动装置连接有皮带传动装置，皮带传动装置的左侧设有力加载装置，皮带传动装置的右侧设有托辊固定架，皮带传动装置的中部设有摩擦轮支起装置；所述驱动装置的电动机上设有变频控制器，所述的托辊固定架上设有与数据采集器相连的传感器； Technical solution: The dynamic performance test bench for mining rollers of the present invention includes a data collector, a driving device composed of a motor, an elastic pin coupling, a reducer, and a flange coupling, and the driving device is connected with Belt transmission device, the left side of the belt transmission device is provided with a force loading device, the right side of the belt transmission device is provided with a roller fixing frame, and the middle part of the belt transmission device is provided with a friction wheel support device; the motor of the drive device is provided with A frequency conversion controller, the roller holder is provided with a sensor connected to the data collector;
所述的皮带传动装置包括轴承座、设在轴承座上与驱动装置相连的主动轴，主动轴上设有主动轮，主动轮的两侧设有一端固定在主动轴上的连接板，连接板的另一端固定有从动轴，从动轴上设有与主动轮皮带相连的从动轮，所述连接板的中部开有一个矩形槽，矩形槽前部的连接板的下方开有一小孔，矩形槽的两端头上部开有弧形凹槽； The belt transmission device includes a bearing seat, a driving shaft connected to the driving device on the bearing seat, a driving wheel is arranged on the driving shaft, and a connecting plate with one end fixed on the driving shaft is arranged on both sides of the driving wheel, and the connecting plate A driven shaft is fixed at the other end of the driven shaft, and a driven wheel connected with the driving pulley belt is arranged on the driven shaft. A rectangular slot is opened in the middle of the connecting plate, and a small hole is opened under the connecting plate at the front of the rectangular slot. There are arc-shaped grooves on the upper parts of the two ends of the rectangular groove;
所述的摩擦轮支起装置包括设在连接板矩形槽内的T形支撑杆，T形支撑杆的尾部经螺栓铰接在支座上； The friction wheel support device includes a T-shaped support rod arranged in the rectangular groove of the connecting plate, and the tail of the T-shaped support rod is hinged on the support via bolts;
所述的力加载装置包括底座、可在底座上往复移动的齿条、与齿条相啮合的摇柄齿轮，齿条的下部设有配重，配重上插装有支杆，支杆的一端插装在底座内，另一端铰接固定在皮带传动装置的下方，支杆上设有与连接板下部小孔相连的钢丝绳； The force loading device includes a base, a rack that can move back and forth on the base, and a rocker gear meshed with the rack. The lower part of the rack is provided with a counterweight, and a pole is inserted on the counterweight. One end is inserted into the base, the other end is hinged and fixed under the belt transmission device, and a steel wire rope connected to the small hole at the lower part of the connecting plate is provided on the pole;
所述的托辊固定架包括固定在待检测托辊两端的矩形连接板、连接矩形连接板的燕尾形连接板，燕尾形连接板的燕尾部分别设有钢柱导轨，钢柱导轨的两端固定在机架上。 The roller fixing frame includes a rectangular connection plate fixed at both ends of the idler to be detected, a dovetail-shaped connection plate connected to the rectangular connection plate, the dovetail of the dovetail-shaped connection plate is respectively provided with a steel column guide rail, and the two ends of the steel column guide rail fixed on the rack.
所述的从动轴的一侧上设有摩擦轮。 A friction wheel is arranged on one side of the driven shaft.
有益效果：本发明通过托辊固定架可固定不同尺寸和类型的托辊，实现在一个实验台上完成多种型号托辊的检测实验，其通用性较好。通过力加载装置控制摩擦轮与托辊之间的压力，通过变频控制器控制电动机转速从而获得不同的托辊转速，实现对托辊不同工况的模拟。通过振动、扭矩和轴心轨迹传感器测得托辊的转动信号并传送至计算机，经过分析计算获得托辊的运行状态和故障状态，得到托辊振动、扭矩和轴心轨迹各方面的性能参数，实现在一个实验台上完成多种性能参数的测试。 Beneficial effects: the present invention can fix idler rollers of different sizes and types through the idler roller fixing frame, and realize detection experiments of various types of idler rollers on one test bench, and has good versatility. The pressure between the friction wheel and the idler is controlled by the force loading device, and the motor speed is controlled by the frequency conversion controller to obtain different rotational speeds of the idler, so as to realize the simulation of different working conditions of the idler. The rotation signal of the roller is measured by the vibration, torque and axis track sensors and sent to the computer. After analysis and calculation, the running state and fault state of the idler are obtained, and the performance parameters of the vibration, torque and axis track of the idler are obtained. Realize the completion of the test of various performance parameters on one test bench.
附图说明 Description of drawings
图1为矿用托辊动态性能实验台整体结构俯视图； Figure 1 is a top view of the overall structure of the dynamic performance test bench for mining rollers;
图2为图1中A-A向的剖视图。 Fig. 2 is a cross-sectional view along A-A in Fig. 1 .
图中：电动机-1，弹性柱销联轴器-2，减速器-3，凸缘联轴器-4，轴承座-5，主动轮-6，主动轴-7，连接板-8，从动轮-9，摩擦轮-10，从动轴-11，托辊-12，钢柱导轨-13，变频控制器-14，传感器-15，矩形连接板-16，燕尾形连接板-17，机架-18，摇柄齿轮-19，齿条-20，支杆-21，配重-22，钢丝绳-23，T形支撑杆-24，螺栓-25，支座-26，底座-27，皮带传动装置-28，摩擦轮支起装置-29，皮带-30，托辊固定架-31。 In the figure: motor-1, elastic pin coupling-2, reducer-3, flange coupling-4, bearing seat-5, driving wheel-6, driving shaft-7, connecting plate-8, from Driving wheel-9, friction wheel-10, driven shaft-11, idler roller-12, steel column guide rail-13, frequency conversion controller-14, sensor-15, rectangular connecting plate-16, dovetail connecting plate-17, machine Frame-18, crank gear-19, rack-20, pole-21, counterweight-22, wire rope-23, T-shaped support rod-24, bolt-25, support-26, base-27, belt Transmission device-28, friction wheel supporting device-29, belt-30, idler roller fixing frame-31.
具体实施方式 Detailed ways
下面结合附图将本发明的具体实施作进一步的描述： The specific implementation of the present invention will be further described below in conjunction with accompanying drawing:
如附图1、2所示，本发明的矿用托辊动态性能实验台，主要由数据采集器、驱动装置构成，驱动装置由电动机1、弹性柱销联轴器2、减速器3、凸缘联轴器4构成，所述的驱动装置连接有皮带传动装置28，皮带传动装置28包括轴承座5、设在轴承座5上与驱动装置相连的主动轴7，主动轴7上设有主动轮6，主动轮6的两侧设有一端固定在主动轴7上的连接板8，连接板8的另一端固定有从动轴11，从动轴11的一侧上设有摩擦轮10，从动轴11通过摩擦轮10将动力传递至托辊12。从动轴11上设有与主动轮6皮带相连的从动轮9，所述连接板8的中部开有一个矩形槽，矩形槽前部的连接板8的下方开有一小孔，矩形槽的两端头上部开有弧形凹槽；皮带传动装置28的左侧设有力加载装置，所述的力加载装置包括底座27、可在底座27上往复移动的齿条20、与齿条20相啮合的摇柄齿轮19，齿条20的下部设有配重22，配重22上插装有支杆21，支杆21的一端插装在底座27的小孔内，另一端铰接固定在皮带传动装置28的下方，底座27的小孔尺寸略大于支杆21，支杆21安装后有间隙以使力加载装置正常对连接板8施加拉力，支杆21上设有与连接板8下部小孔相连的钢丝绳23，通过力加载装置实现控制摩擦轮10与托辊12之间的压力；皮带传动装置28的右侧设有托辊固定架31，托辊固定架31包括固定在待检测托辊12两端的矩形连接板16、连接矩形连接板16的燕尾形连接板17，矩形连接板16和燕尾形连接板17之间通过螺栓连接，燕尾形连接板17的燕尾部有两个小孔分别设有钢柱导轨13，钢柱导轨13的两端固定在机架18上，燕尾形连接板17可以在钢柱导轨13上移动以适应不同长度的托辊，移动到合适位置时通过燕尾形连接板17上的销钉进行固定；皮带传动装置28的中部设有摩擦轮支起装置29，摩擦轮支起装置29包括设在连接板8矩形槽内的T形支撑杆24，T形支撑杆24的尾部经螺栓25铰接在支座26上，T形支撑杆24的横向部分安装于皮带传动装置28的连接板8的矩形槽中，并可以在连接板8的两个弧形凹槽之间切换以便于支撑起摩擦轮10实现更换待测试的托辊12；所述驱动装置的电动机1上设有变频控制器14，所述的托辊固定架31上设有与数据采集器相连的传感器15； As shown in the accompanying drawings 1 and 2, the mine roller dynamic performance test bench of the present invention is mainly composed of a data collector and a driving device, and the driving device is composed of a motor 1, an elastic pin coupling 2, a reducer 3, a convex The edge coupling 4 is formed, and the driving device is connected with a belt transmission device 28. The belt transmission device 28 includes a bearing seat 5, a drive shaft 7 connected to the drive device on the bearing seat 5, and a drive shaft 7 is provided on the drive shaft 7. Wheel 6, the two sides of driving wheel 6 are provided with connecting plate 8 that one end is fixed on the driving shaft 7, the other end of connecting plate 8 is fixed with driven shaft 11, and one side of driven shaft 11 is provided with friction wheel 10, The driven shaft 11 transmits power to the supporting roller 12 through the friction wheel 10 . The driven shaft 11 is provided with the driven wheel 9 that links to each other with the driving wheel 6 belts, the middle part of the connecting plate 8 has a rectangular groove, and the bottom of the connecting plate 8 at the front portion of the rectangular groove has an aperture, and the two sides of the rectangular groove There is an arc-shaped groove on the upper part of the end; the left side of the belt drive 28 is provided with a force loading device, and the force loading device includes a base 27, a rack 20 that can reciprocate on the base 27, and is engaged with the rack 20. The rocker gear 19, the lower part of the rack 20 is provided with a counterweight 22, the counterweight 22 is inserted with a pole 21, one end of the pole 21 is inserted into the small hole of the base 27, and the other end is hinged and fixed on the belt drive. Below the device 28, the small hole size of the base 27 is slightly larger than the pole 21. After the pole 21 is installed, there is a gap so that the force loading device can normally apply tension to the connecting plate 8. The pole 21 is provided with a small hole at the bottom of the connecting plate 8. The connected steel wire rope 23 controls the pressure between the friction wheel 10 and the idler roller 12 through the force loading device; the right side of the belt transmission device 28 is provided with an idler fixing frame 31, and the idler fixing frame 31 includes an idler fixed to be detected. 12 The rectangular connecting plate 16 at both ends, the dovetail connecting plate 17 connecting the rectangular connecting plate 16, the rectangular connecting plate 16 and the dovetail connecting plate 17 are connected by bolts, and the dovetail of the dovetail connecting plate 17 has two small holes respectively There is a steel column guide rail 13, the two ends of the steel column guide rail 13 are fixed on the frame 18, and the dovetail-shaped connecting plate 17 can move on the steel column guide rail 13 to adapt to different lengths of rollers, and when it moves to a suitable position, it passes through the dovetail-shaped connecting plate 17. The pins on the connecting plate 17 are fixed; the middle part of the belt drive 28 is provided with a friction wheel support device 29, and the friction wheel support device 29 includes a T-shaped support rod 24 located in the rectangular groove of the connection plate 8, and the T-shaped support rod The afterbody of 24 is hinged on the bearing 26 through bolt 25, and the transverse part of T-shaped support rod 24 is installed in the rectangular groove of the connecting plate 8 of belt transmission 28, and can be between two arc-shaped grooves of connecting plate 8 In order to support the friction wheel 10 and realize the replacement of the idler roller 12 to be tested; the motor 1 of the driving device is provided with a frequency conversion controller 14, and the idler roller holder 31 is provided with a sensor 15;
工作原理及过程：将所检测的托辊12安装于托辊固定架31的两个矩形连接板16之间，在钢柱导轨13上调整燕尾形连接板17的位置以适应托辊12的长度，合适后拧紧燕尾形连接板17上的固定螺钉以使托辊位置固定，调整摩擦轮支起装置29的T形支撑杆24，将摩擦轮10压紧托辊12，调整力加载装置27的摇柄齿轮19，使齿条20移动到合适位置，以使钢丝绳23通过连接板8对摩擦轮10施加合适的压力，调整电动机变频控制器14以使电动机1运行于需要的转速。实验台在运转过程中，可以通过调节变频控制器14和摇柄齿轮19来改变托辊12运行的转速和阻力，以模拟托辊运行的不同工况。根据实验需要，在托辊12一端安装振动、扭矩或涡流传感器采集托辊运行时的信号，将该信号传输至计算机，通过振动、扭矩和轴心轨迹的分析可以明确托辊的性能特点、故障所在以便改进设计方法，提高托辊12的工作性能。通过力加载装置控制摩擦轮10与托辊12之间的压力，通过变频控制器14对电动机1转速进行控制，通过摩擦轮支起装置实现摩擦轮10与托辊12的分离以更换不同托辊进行实验，通过传感器15和数据采集器采集托辊运行的振动、扭矩和轴心轨迹信息。 Working principle and process: install the detected idler 12 between the two rectangular connecting plates 16 of the idler fixing frame 31, adjust the position of the dovetail connecting plate 17 on the steel column guide rail 13 to adapt to the length of the idler 12 After being suitable, tighten the fixing screws on the dovetail connecting plate 17 to fix the position of the idler roller, adjust the T-shaped support rod 24 of the friction wheel support device 29, press the friction wheel 10 against the idler roller 12, and adjust the position of the force loading device 27 The rocker gear 19 moves the rack 20 to a suitable position so that the steel wire rope 23 applies a suitable pressure to the friction wheel 10 through the connecting plate 8, and adjusts the motor frequency conversion controller 14 to make the motor 1 run at a required speed. During the operation of the test bench, the rotating speed and resistance of the idler roller 12 can be changed by adjusting the frequency conversion controller 14 and the crank gear 19, so as to simulate different operating conditions of the idler roller. According to the needs of the experiment, a vibration, torque or eddy current sensor is installed at one end of the idler 12 to collect the signal during the operation of the idler, and the signal is transmitted to the computer. Through the analysis of vibration, torque and axis trajectory, the performance characteristics and faults of the idler can be clarified. The reason is to improve the design method and improve the working performance of the idler roller 12. The pressure between the friction wheel 10 and the idler 12 is controlled by the force loading device, the speed of the motor 1 is controlled by the frequency conversion controller 14, and the separation of the friction wheel 10 and the idler 12 is realized by the friction wheel supporting device to replace different idlers An experiment is carried out to collect the vibration, torque and axis trajectory information of the idler roller operation through the sensor 15 and the data collector.
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| CN105865764A (en) * | 2016-03-28 | 2016-08-17 | 湖南工业大学 | Single roller resistance coefficient semi-automatic test board and testing method |
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| CN105021386B (en) * | 2015-07-09 | 2018-07-20 | 湖南工业大学 | A kind of test method and device of list idler resistance coefficient |
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| CN108983088B (en) * | 2018-09-17 | 2024-07-26 | 无锡江南奕帆电力传动科技股份有限公司 | Simulation test device of breaker power module |
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| CN111238783B (en) * | 2020-02-22 | 2025-03-11 | 深圳市守正航空工业有限公司 | A pressure rolling durability testing device for cargo transfer guide rollers in floor boxes of cargo aircraft |
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