CN110873647A - Rolling and pitching attitude test bed for micro engine - Google Patents

Rolling and pitching attitude test bed for micro engine Download PDF

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Publication number
CN110873647A
CN110873647A CN201911332881.6A CN201911332881A CN110873647A CN 110873647 A CN110873647 A CN 110873647A CN 201911332881 A CN201911332881 A CN 201911332881A CN 110873647 A CN110873647 A CN 110873647A
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pitching
engine
micro
rolling
sensor
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CN110873647B (en
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贾琳渊
陈玉春
陈敏泽
黄新春
李成明
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Northwestern Polytechnical University
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Northwestern Polytechnical University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00Testing of engines
    • G01M15/14Testing gas-turbine engines or jet-propulsion engines

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
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Abstract

The invention relates to a miniature engine test bed. A rolling and pitching attitude test bed for a micro engine comprises the micro engine and a supporting base and is characterized by further comprising a pitching test bed, wherein the pitching test bed is arranged on the supporting base through a pitching device which drives the pitching test bed to perform pitching and pitching motions; the miniature engine is fixedly arranged on the rolling platform, and the rolling platform is arranged on the pitching test bed through a rolling device for driving the rolling platform to perform rolling motion; the rolling platform is provided with a vibration sensor, a rotating speed sensor and an inclination angle sensor, the tail nozzle temperature sensor sends sensing signals to the electrical control cabinet, and meanwhile, the electrical control cabinet is electrically connected with the pitching device and the rolling device and is used for controlling the pitching device and the rolling device. The invention realizes the accurate control of the pitch angle and the roll angle of the turbojet engine, simulates the real attitude of the miniature turbojet engine in the air, and accurately obtains various technical parameters of the miniature turbojet engine during the roll and pitch.

Description

微型发动机滚转俯仰姿态试验台Micro-engine roll pitch attitude test bench

技术领域technical field

本发明涉及微型发动机试验台。The present invention relates to a micro-engine test bench.

背景技术Background technique

航空发动机技术一直被认为是“工业技术的皇冠上的明珠”,航空发动机为航空器提供飞行所需动力。小型飞行器、通航飞机及无人飞行器的迅速发展,对微型涡喷发动机的性能提出了更高的要求。目前,微型涡喷发动机的试验台多为固定式的简易试验台,不能模拟飞行器在空中真实的各种俯仰动作。Aero-engine technology has always been regarded as the "crown jewel of industrial technology", and aero-engines provide aircraft with the power required for flight. The rapid development of small aircraft, general aviation aircraft and unmanned aerial vehicles has put forward higher requirements for the performance of micro-turbojet engines. At present, the test benches of micro turbojet engines are mostly fixed and simple test benches, which cannot simulate various real pitching actions of the aircraft in the air.

在公开号为CN 208076159 U和CN 108387379 A的实用新型专利和发明专利中提出了一种微小型涡轮发动机试车台,主要用于微型涡喷发动机和微型涡桨发动机进行安装测试,通过调节不同的支架来适用于不同类型的涡轮发动机,并可以实时监控和记录发动机的转速、温度等数据。In the utility model patents and invention patents with publication numbers CN 208076159 U and CN 108387379 A, a micro-turbine engine test bench is proposed, which is mainly used for the installation and testing of micro-turbojet engines and micro-turboprop engines. The bracket is suitable for different types of turbine engines, and can monitor and record the engine speed, temperature and other data in real time.

在公开号为CN 102507204 A的发明专利中提出了一种可移动式微小型涡轮喷气发动机试车台,它主要包含试车台架与控制柜,主要对微型涡喷发动机转速、进气流量、耗油率、压气机后温度与压力等参数进行测量。In the invention patent with publication number CN 102507204 A, a movable micro-miniature turbojet engine test bench is proposed, which mainly includes a test bench and a control cabinet, and mainly controls the rotation speed, air intake flow, fuel consumption rate of the micro turbojet engine. , Measure the parameters such as temperature and pressure after the compressor.

在公开号为CN 202693314 U的实用新型专利中提出了一种涡轮喷气发动机试车台。用于测试小型涡喷发动机推力、温度和转速,同时移动方便,可在多种场合进行发动机静态测试。In the utility model patent with publication number CN 202693314 U, a turbojet engine test bench is proposed. It is used to test the thrust, temperature and speed of small turbojet engines, and it is easy to move, and can be used for static engine tests in various occasions.

随着近些年科技的发展,微型航空器发展迅猛,常见的小型消费级航空器多以电机作为动力源,并且以四轴航空器最为常见,而大型航模,工业级飞行器,以及通航/无人机主要采用微型涡轮发动机作为主要动力源。最常见的动力源就是微型涡轮喷气发动机。With the development of science and technology in recent years, micro-aircraft has developed rapidly. Common small consumer-grade aircraft mostly use motors as power sources, and four-axis aircraft are the most common, while large-scale model aircraft, industrial aircraft, and general aviation / UAV A micro-turbine engine is used as the main power source. The most common power source is a micro-turbojet engine.

在上述专利中公开号为CN 208076159 U、CN 108387379 A、CN 102507204 A和CN202693314 U的专利都提出来一种测量微型涡轮喷气发动机的试验台,能够对微小型涡喷发动机进行转速、温度、推力等数据测量,但是其结构的试验台仅能测试微型涡喷发动机在固定姿态下的各种技术参数,不能模拟飞机发动机在空中真实姿态,即滚转俯仰姿态。因此也无法得到飞机发动机在空中实际姿态下的各项技术参数。In the above-mentioned patents, the patents with the publication numbers of CN 208076159 U, CN 108387379 A, CN 102507204 A and CN202693314 U all propose a test bench for measuring the micro-turbojet engine, which can measure the rotational speed, temperature, thrust of the micro-turbojet engine. However, the test bench of its structure can only test various technical parameters of the micro-turbojet engine in a fixed attitude, and cannot simulate the real attitude of the aircraft engine in the air, that is, the roll and pitch attitude. Therefore, the technical parameters of the aircraft engine in the actual attitude in the air cannot be obtained.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于避免现有技术的不足提供一种可以模拟微型发动机在空中滚转俯仰的真实姿态,并在真实姿态下测量微型涡喷发动机在瞬时姿态下的技术参数的微型发动机姿态试验台。The object of the present invention is to avoid the deficiencies of the prior art and provide a micro-engine attitude test bench that can simulate the real attitude of the micro-engine in the air roll and pitch, and measure the technical parameters of the micro-turbojet engine in the instantaneous attitude under the real attitude .

为实现上述目的,本发明采取的技术方案为:一种微型发动机滚转俯仰姿态试验台,包括微型发动机,支撑底座,还包括俯仰试验台,俯仰试验台通过驱动其进行俯、仰运动的俯仰装置安装在支撑底座上;所述的微型发动机固定安装在滚转台上,滚转台又通过驱动其进行滚转运动的滚转装置安装在俯仰试验台上,拉压力传感器安装在滚转装置下方的俯仰试验台上;在所述的微型发动机上设有压力传感器和压气机后温度传感器及微型发动机前端进气口侧方装有的油管快接头;在所述的滚转台上设有振动传感器、转速传感器、倾角传感器,尾喷管温度传感器;还包括在下支撑平台安装有数据采集卡和流量计,发动机煤油通过流量计接入微型涡喷发动机的油管快接头中;所述的振动传感器、转速传感器、倾角传感器,尾喷管温度传感器、压气机后温度传感器、压力传感器及拉压力传感器均将感应信号发送至数据采集卡,并通过数据采集卡转换为数字信号后传递至电气控制柜,电气控制柜还与所述的俯仰装置、滚转装置电连接,用于控制俯仰装置和滚转装置。In order to achieve the above purpose, the technical solution adopted in the present invention is: a micro-engine roll-pitch attitude test bench, comprising a micro-engine, a support base, and a pitch test bench, and the pitch test bench is driven to perform pitch and pitch motions. The device is installed on the support base; the micro-engine is fixedly installed on the rolling table, and the rolling table is installed on the pitching test bench through the rolling device that drives it to perform rolling motion, and the tension pressure sensor is installed under the rolling device. On the pitching test bench; a pressure sensor and a temperature sensor after the compressor are arranged on the micro-engine, and an oil pipe quick joint installed on the side of the air inlet at the front end of the micro-engine; a vibration sensor, a vibration sensor, Speed sensor, inclination sensor, and tailpipe temperature sensor; it also includes a data acquisition card and a flow meter installed on the lower support platform, and the engine kerosene is connected to the oil pipe quick joint of the micro-turbojet engine through the flow meter; the vibration sensor, speed Sensor, inclination sensor, tail nozzle temperature sensor, temperature sensor after compressor, pressure sensor and tension pressure sensor all send sensing signals to the data acquisition card, which are converted into digital signals by the data acquisition card and then transmitted to the electrical control cabinet. The control cabinet is also electrically connected with the pitching device and the rolling device for controlling the pitching device and the rolling device.

进一步的,所述的俯仰装置包括在俯仰试验台底部通过连接轴支架设有的两个连接轴,且两个连接轴对应微型发动机前、后两端设置;其中一个连接轴活动穿设在支撑筋板一端的孔中,支撑筋板另一端固定设置在支撑底座上;还包括有伺服电动缸,伺服电动缸的上端设有的伺服电动缸上支架与另一个连接轴活动连接;在支撑底座上通过第二连接轴支架固定有伺服电动缸下支架连接轴,伺服电动缸的下端设有的伺服电动缸下支架与下支架连接轴活动连接,所述的伺服电动缸与电气控制柜电连接,电气控制柜控制伺服电动缸上、下运动从而实现俯仰试验台的俯、仰运动。Further, the pitching device includes two connecting shafts provided at the bottom of the pitching test bench through the connecting shaft bracket, and the two connecting shafts are arranged corresponding to the front and rear ends of the micro-engine; one of the connecting shafts is movably passed through the support. In the hole at one end of the rib plate, the other end of the support rib plate is fixedly arranged on the support base; it also includes a servo electric cylinder, the upper bracket of the servo electric cylinder provided on the upper end of the servo electric cylinder is movably connected with another connecting shaft; on the support base The connecting shaft of the lower support of the servo electric cylinder is fixed through the second connecting shaft support, the lower support of the servo electric cylinder provided at the lower end of the servo electric cylinder is movably connected with the connecting shaft of the lower support, and the said servo electric cylinder is electrically connected with the electrical control cabinet , The electrical control cabinet controls the up and down movement of the servo electric cylinder to realize the pitch and pitch movement of the pitch test bench.

进一步的,所述的支撑底座包括上支撑板、下支撑板与立板,上支撑板设置在立板一侧的上部,下支撑板设置在立板另一侧的下部,所述的支撑筋板固定设置在所述的上支撑板上,而所述的下支架连接轴固定设置在所述的下支撑板上。Further, the support base includes an upper support plate, a lower support plate and a vertical plate, the upper support plate is arranged on the upper part of one side of the vertical plate, the lower support plate is arranged on the lower part of the other side of the vertical plate, and the support ribs The plate is fixedly arranged on the upper support plate, and the lower bracket connecting shaft is fixedly arranged on the lower support plate.

进一步的,所述的滚转装置包括滚转台,滚转台通过支撑转子安装在滚转台支架上,滚转台支架设置在俯仰试验台上,滚转台沿微型发动机的轴线转动,所述的滚转台具有半弧状凹槽,其剖面呈半弧状,所述的微型发动机固定安装在滚转台的半弧状凹槽中,在滚转台一端的外表面上设有齿轮,齿轮与电机齿轮相啮合,电机驱动电机齿轮从而带动滚转台转动;电气控制柜控制电机实现滚转台转动。Further, the rolling device includes a rolling table, the rolling table is installed on the rolling table bracket through the supporting rotor, the rolling table bracket is arranged on the pitching test table, the rolling table rotates along the axis of the micro-engine, and the rolling table has The semi-arc-shaped groove has a half-arc-shaped cross section. The micro-motor is fixedly installed in the semi-arc-shaped groove of the rolling table. A gear is arranged on the outer surface of one end of the rolling table. The gear meshes with the motor gear, and the motor drives the motor. The gear thus drives the rolling table to rotate; the electrical control cabinet controls the motor to realize the rolling table rotation.

进一步的,在所述滚转台的一端还设有滚转台固定块,滚转台固定块固定安装在俯仰试验台上;在滚转台固定块上设有固定块轴承,固定块轴承紧压滚转台半弧状凹槽的内侧。Further, one end of the rolling table is also provided with a rolling table fixing block, and the rolling table fixing block is fixedly installed on the pitching test bench; a fixed block bearing is arranged on the rolling table fixing block, and the fixed block bearing presses the rolling table half tightly. The inside of the arc-shaped groove.

进一步的,在所述滚转台的滚转方向上的滚转台底部设有滑道槽,且拉压力传感器设置在所述的滑道槽中。Further, a slide groove is provided at the bottom of the rolling table in the rolling direction of the rolling table, and a tension pressure sensor is arranged in the slide groove.

进一步的,沿着所述滚转台的半弧状凹槽两侧设有传感器安装平台,所述的转速传感器通过转速传感器定位板安装在传感器安装平台上,倾角传感器通过螺栓固定在传感器安装平台上,所述的尾喷管温度传感器通过对应设置在传感器安装平台上的两个传感器固定环支撑设置在微型发动机的尾喷管出口处。Further, a sensor installation platform is provided along both sides of the semi-arc groove of the rolling table, the rotational speed sensor is installed on the sensor installation platform through the rotational speed sensor positioning plate, and the inclination sensor is fixed on the sensor installation platform by bolts, The tail nozzle temperature sensor is supported and arranged at the exit of the tail nozzle of the micro-engine through two sensor fixing rings correspondingly arranged on the sensor installation platform.

进一步的,所述的微型发动机通过定位环固定在滚转台的半弧状凹槽中,所述的振动传感器安装在所述定位环上。Further, the micro-engine is fixed in the semi-arc groove of the rolling table through a positioning ring, and the vibration sensor is mounted on the positioning ring.

进一步的,所述的压力传感器和压气机后温度传感器安装在所述微型发动机的压气机出口截面处,并在垂直于微型发动机轴线方向上对称设置,所述的油管快接头设置在微型发动机前端进气口侧方。Further, the pressure sensor and the temperature sensor after the compressor are installed at the compressor outlet section of the micro-engine, and are symmetrically arranged in the direction perpendicular to the axis of the micro-engine, and the oil pipe quick joint is arranged at the front end of the micro-engine. Air intake side.

进一步的,所述的数据采集卡至少包括两台,且分别安装在支撑底座的两侧;所述的电气控制柜内装有工控机,在电气控制柜上设有控制台,控制台上装有显示器和用于控制俯仰装置、滚转装置的操控台,显示器和操控台分别与工控机电连接,噪声传感器内置于控制台中;所述的拉压力传感器、转速传感器、振动传感器、尾喷管温度传感器以及压力传感器和压气机后温度传感器、倾角传感器采集的数据都由所述的数据采集卡接收并转换为数字信号后传递给工控机,并显示在控制台的显示器上;,通过工控机俯仰角度值和计算程序,在显示器上输出在不同角度下最终的推力值。Further, the data acquisition card includes at least two, and they are respectively installed on both sides of the support base; the electrical control cabinet is equipped with an industrial computer, the electrical control cabinet is provided with a console, and the console is equipped with a display and a monitor. The console is used to control the pitching device and the rolling device. The display and console are electrically and mechanically connected to the industrial control, and the noise sensor is built in the console; the tension pressure sensor, rotational speed sensor, vibration sensor, tail nozzle temperature sensor and pressure The data collected by the sensor, the temperature sensor and the inclination sensor after the compressor are all received by the data acquisition card and converted into digital signals and then transmitted to the industrial computer, and displayed on the display of the console; The calculation program outputs the final thrust value at different angles on the display.

本发明的有益效果是:本发明主要是对微型涡喷发动机进行测试,测试微型涡喷发动机在不同俯仰和滚转角度下工作时的各项技术参数,角度可通过伺服电机、伺服电动缸以及倾角传感器进行精确控制,推力传感器测量发动机轴向方向的推力,再通过内置程序去除发动机自身重力的影响,计算获得俯仰姿态下的推力。除此之外,安装有温度、转速、推力传感器,可以实时采集微型涡喷发动机的温度、转速、压力等数据,可以模拟微型涡喷发动机在空中的各种滚转以及俯仰的姿态,实现测量涡喷发动机瞬时的俯仰角度、滚转角度、推力、振动、转速、耗油率、压气机后温度与压力、尾喷管温度等参数的目的。真正实现了精确控制涡喷发动机的俯仰角度和滚转角度,模拟微型涡喷发动机在空中的真实姿态,并准确获得微型涡喷发动机滚转俯仰时的各项技术参数,提高可靠性,为发动机出厂检验提供数据。The beneficial effects of the invention are as follows: the invention mainly tests the micro-turbojet engine, and tests various technical parameters of the micro-turbojet engine when it works under different pitch and roll angles. The inclination sensor performs precise control, and the thrust sensor measures the thrust in the axial direction of the engine, and then removes the influence of the engine's own gravity through the built-in program, and calculates the thrust in the pitch attitude. In addition, temperature, rotational speed and thrust sensors are installed, which can collect the temperature, rotational speed, pressure and other data of the micro-turbojet engine in real time, and can simulate various roll and pitch attitudes of the micro-turbojet engine in the air to realize the measurement The purpose of the instantaneous pitch angle, roll angle, thrust, vibration, rotational speed, fuel consumption rate, post-compressor temperature and pressure, tail nozzle temperature and other parameters of the turbojet engine. It truly realizes the precise control of the pitch angle and roll angle of the turbojet engine, simulates the real attitude of the micro turbojet engine in the air, and accurately obtains various technical parameters of the micro turbojet engine when it rolls and pitches. Factory inspection provides data.

附图说明Description of drawings

图1是本发明微型涡喷发动机滚转俯仰姿态试验台的正视轴侧图;Fig. 1 is the front perspective view of the micro-turbojet engine roll pitch attitude test bench of the present invention;

图2是本发明微型涡喷发动机滚转俯仰姿态试验台的仰视轴侧图;Fig. 2 is the bottom axis side view of the micro-turbojet engine roll pitch attitude test bench of the present invention;

图3是本发明微型涡喷发动机滚转俯仰姿态试验台的侧视图;Fig. 3 is the side view of the roll pitch attitude test bench of the micro-turbojet engine of the present invention;

图4是本发明微型涡喷发动机的正视图;Fig. 4 is the front view of the micro-turbojet engine of the present invention;

图5是本发明控制台的轴测图。Figure 5 is an axonometric view of the console of the present invention.

具体实施方式Detailed ways

以下结合附图对本发明的原理和特征进行描述,所举实例只用于解释本发明,并非用于限定本发明的范围。The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

实施例1:如图1至图5所示,一种微型发动机滚转俯仰姿态试验台,包括微型发动机1,支撑底座14,还包括俯仰试验台16,俯仰试验台16通过驱动其进行俯、仰运动的俯仰装置安装在支撑底座14上;所述的微型发动机1固定安装在滚转台23上,滚转台23又通过驱动其进行滚转运动的滚转装置安装在俯仰试验台16上,拉压力传感器34安装在滚转装置下方的俯仰试验台16上;在所述的微型发动机1上设有压力传感器22和压气机后温度传感器30及微型发动机1前端进气口侧方装有的油管快接头20;在所述的滚转台23上设有振动传感器6、转速传感器7、倾角传感器9,尾喷管温度传感器2;还包括在下支撑平台14安装有数据采集卡10和流量计27,发动机煤油通过流量计27接入微型涡喷发动机的油管快接头20中;所述的振动传感器6、转速传感器7、倾角传感器9,尾喷管温度传感器2、压气机后温度传感器30、压力传感器22及拉压力传感器34均将感应信号发送至数据采集卡10,并通过数据采集卡10转换为数字信号后传递至电气控制柜31,同时电气控制柜31还与所述的俯仰装置、滚转装置电连接,用于控制俯仰装置和滚转装置。Embodiment 1: As shown in Figures 1 to 5, a micro-engine roll-pitch attitude test bench includes a micro-engine 1, a support base 14, and a pitch test bench 16. The pitch test bench 16 is driven to perform pitching, The pitching device of the pitching motion is installed on the support base 14; the micro-engine 1 is fixedly installed on the rolling table 23, and the rolling table 23 is mounted on the pitching test bench 16 through the rolling device that drives it to perform the rolling motion. The pressure sensor 34 is installed on the pitch test bench 16 below the rolling device; the micro-engine 1 is provided with a pressure sensor 22, a temperature sensor 30 after the compressor, and an oil pipe installed on the side of the air inlet at the front end of the micro-engine 1 The quick joint 20; the vibration sensor 6, the rotational speed sensor 7, the inclination sensor 9, the tail nozzle temperature sensor 2 are arranged on the rolling table 23; the data acquisition card 10 and the flow meter 27 are also installed on the lower support platform 14, The engine kerosene is connected to the oil pipe quick joint 20 of the miniature turbojet engine through the flow meter 27; the vibration sensor 6, the rotational speed sensor 7, the inclination sensor 9, the tail nozzle temperature sensor 2, the temperature sensor 30 after the compressor, the pressure sensor 22 and the pull pressure sensor 34 both send the inductive signal to the data acquisition card 10, and the data acquisition card 10 converts it into a digital signal and transmits it to the electrical control cabinet 31. At the same time, the electrical control cabinet 31 is also connected with the pitch device, roll The device is electrically connected for controlling the pitch device and the roll device.

所述的俯仰装置包括在俯仰试验台16底部通过连接轴支架设有的两个连接轴24,且两个连接轴24对应微型发动机1前、后两端设置;其中一个连接轴24活动穿设在支撑筋板25一端的孔中,支撑筋板25另一端固定设置在支撑底座14上;还包括有伺服电动缸13,伺服电动缸13的上端设有的伺服电动缸上支架35与另一个连接轴24活动连接;在支撑底座14上通过第二连接轴支架固定有伺服电动缸下支架连接轴24,伺服电动缸13的下端设有的伺服电动缸下支架36与下支架连接轴24活动连接,所述的伺服电动缸13与电气控制柜31电连接,电气控制柜31控制伺服电动缸13上、下运动从而实现俯仰试验台16的俯、仰运动。The pitching device includes two connecting shafts 24 provided at the bottom of the pitching test bench 16 through a connecting shaft bracket, and the two connecting shafts 24 are arranged corresponding to the front and rear ends of the micro-engine 1; one of the connecting shafts 24 is movably passed through. In the hole at one end of the support rib plate 25, the other end of the support rib plate 25 is fixedly arranged on the support base 14; it also includes a servo electric cylinder 13, the upper end of the servo electric cylinder 13 is provided with a servo electric cylinder upper bracket 35 and another The connecting shaft 24 is movably connected; the connecting shaft 24 of the lower support of the servo electric cylinder is fixed on the support base 14 through the second connecting shaft bracket, and the lower support 36 of the servo electric cylinder provided at the lower end of the servo electric cylinder 13 is movable with the connecting shaft 24 of the lower support The servo electric cylinder 13 is electrically connected with the electrical control cabinet 31 , and the electrical control cabinet 31 controls the servo electric cylinder 13 to move up and down so as to realize the pitch and pitch movement of the pitch test bench 16 .

所述的支撑底座14包括上支撑板、下支撑板与立板,上支撑板设置在立板一侧的上部,下支撑板设置在立板另一侧的下部,所述的支撑筋板25固定设置在所述的上支撑板上,而所述的下支架连接轴24固定设置在所述的下支撑板上。The supporting base 14 includes an upper supporting plate, a lower supporting plate and a vertical plate, the upper supporting plate is arranged on the upper part of one side of the vertical plate, the lower supporting plate is arranged on the lower part of the other side of the vertical plate, and the supporting rib plate 25 It is fixedly arranged on the upper support plate, and the lower bracket connecting shaft 24 is fixedly arranged on the lower support plate.

所述的滚转装置包括滚转台23,滚转台23通过支撑转子4安装在滚转台支架5上,滚转台支架5设置在俯仰试验台16上,滚转台23沿微型发动机1的轴线转动,所述的滚转台23具有半弧状凹槽,其剖面呈半弧状,所述的微型发动机1固定安装在滚转台的半弧状凹槽中,在滚转台23一端的外表面上设有齿轮18,齿轮18与电机齿轮11相啮合,电机15驱动电机齿轮11从而带动滚转台23转动;电气控制柜31控制电机15实现滚转台23转动。在滚转台23的一端还设有滚转台固定块17,滚转台固定块17固定安装在俯仰试验台16上;在滚转台固定块17上设有固定块轴承19,固定块轴承19紧压滚转台23半弧状凹槽的内侧。在滚转台23的滚转方向上的滚转台23底部设有滑道槽,且拉压力传感器34设置在所述的滑道槽中。沿着所述滚转台23的半弧状凹槽两侧设有传感器安装平台,所述的转速传感器7通过转速传感器定位板8安装在传感器安装平台上,倾角传感器9通过螺栓固定在传感器安装平台上,所述的尾喷管温度传感器2通过对应设置在传感器安装平台上的两个传感器固定环3支撑设置在微型发动机1的尾喷管出口处。所述的微型发动机1通过定位环21固定在滚转台23的半弧状凹槽中,所述的振动传感器6安装在所述定位环21上。The rolling device includes a rolling table 23, the rolling table 23 is mounted on the rolling table bracket 5 through the supporting rotor 4, the rolling table bracket 5 is arranged on the pitch test table 16, and the rolling table 23 rotates along the axis of the micro-engine 1, so The rolling table 23 has a semi-arc-shaped groove, and its cross-section is semi-arc-shaped. 18 meshes with the motor gear 11, and the motor 15 drives the motor gear 11 to drive the rolling table 23 to rotate; the electrical control cabinet 31 controls the motor 15 to realize the rolling table 23 to rotate. One end of the rolling table 23 is also provided with a rolling table fixing block 17, and the rolling table fixing block 17 is fixedly installed on the pitching test bench 16; a fixed block bearing 19 is provided on the rolling table fixing block 17, and the fixed block bearing 19 presses the rolling The inner side of the semi-arc groove of the turntable 23. The bottom of the rolling table 23 in the rolling direction of the rolling table 23 is provided with a chute groove, and the tension pressure sensor 34 is arranged in the said chute groove. A sensor installation platform is provided along the two sides of the semi-arc groove of the rolling table 23. The rotational speed sensor 7 is installed on the sensor installation platform through the rotational speed sensor positioning plate 8, and the inclination sensor 9 is fixed on the sensor installation platform by bolts. , the tail nozzle temperature sensor 2 is supported and arranged at the exit of the tail nozzle of the micro-engine 1 through two sensor fixing rings 3 correspondingly arranged on the sensor installation platform. The micro-engine 1 is fixed in the semi-arc groove of the rolling table 23 by the positioning ring 21 , and the vibration sensor 6 is installed on the positioning ring 21 .

所述的压力传感器22和压气机后温度传感器30安装在所述微型发动机1的压气机出口截面处,并在垂直于微型发动机1轴线方向上对称设置,所述的油管快接头20设置在微型发动机1前端进气口侧方。The pressure sensor 22 and the temperature sensor 30 after the compressor are installed at the compressor outlet section of the micro-engine 1, and are symmetrically arranged in the direction perpendicular to the axis of the micro-engine 1, and the oil pipe quick joint 20 is arranged on the micro-engine 1. On the side of the intake port at the front end of engine 1.

所述的数据采集卡10至少包括两台,且分别安装在支撑底座14的两侧;所述的电气控制柜31内装有工控机,电气控制柜31上设有控制台31,控制台31上装有显示器32和用于控制俯仰装置、滚转装置的操控台33,显示器32和操控台33分别与工控机电连接,噪声传感器内置于控制台31中;所述的拉压力传感器34、转速传感器7、振动传感器6、尾喷管温度传感器2以及压力传感器22和压气机后温度传感器30、倾角传感器9采集的数据都由所述的数据采集卡10接收并转换为数字信号后传递给工控机,并显示在控制台31的显示器32上,通过工控机俯仰角度值和计算程序,在显示器32上输出在不同角度下最终的推力值。The data acquisition card 10 includes at least two, which are respectively installed on both sides of the support base 14; the electrical control cabinet 31 is equipped with an industrial computer, the electrical control cabinet 31 is provided with a console 31, and the console 31 is installed on the top There is a display 32 and a console 33 for controlling the pitching device and the rolling device. The display 32 and the console 33 are electrically connected to the industrial control respectively, and the noise sensor is built in the console 31; the tension sensor 34 and the rotational speed sensor 7 , the vibration sensor 6, the tail nozzle temperature sensor 2 and the pressure sensor 22 and the data collected by the compressor rear temperature sensor 30 and the inclination sensor 9 are all received by the data acquisition card 10 and converted into digital signals and then transmitted to the industrial computer, And displayed on the display 32 of the console 31, through the pitch angle value of the industrial computer and the calculation program, the final thrust value at different angles is output on the display 32.

在正式进行试验时,首先启动发动机,显示器32上显示上述各种传感器检测发动机的各项技术参数,包括推力、转速、振动、压气机温度、压气机压力、尾喷管喷气温度、燃油流量以及俯仰角和滚转角;通过操控台33的俯仰按钮,控制伺服电动缸的伸缩,此时俯仰平台16开始翻转,直到到达俯仰角度的极限值,亦可通过操控台33上的滚转停止按钮使得俯仰角处于某一给定的位置或给定滚转和俯仰角度的变化率,使得发动机姿态试验台按照给定的速率滚转和俯仰;亦可通过操控台33上的滚转停止按钮使俯仰角度处于某一给定位置。同时通过操控台33上的滚转按钮,控制伺服电机15,使滚转台23进行滚转或停止滚转,模拟微型涡喷发动机1在空中的滚转俯仰姿态;可以通过工控机给定滚转和俯仰角度的变化率,使得发动机姿态试验台按照给定的速率滚转和俯仰,并得到该发动机在空中实际姿态下的各项技术参数。When the test is formally carried out, the engine is first started, and the display 32 displays various technical parameters of the engine detected by the above-mentioned various sensors, including thrust, rotational speed, vibration, compressor temperature, compressor pressure, tail nozzle jet temperature, fuel flow and Pitch angle and roll angle; control the extension and retraction of the servo electric cylinder through the pitch button of the console 33, at this time the pitch platform 16 starts to flip until the limit value of the pitch angle is reached, and the roll stop button on the console 33 can also be used to make The pitch angle is at a given position or the rate of change of the roll and pitch angles, so that the engine attitude test bench rolls and pitches at a given rate; the pitch can also be made by the roll stop button on the console 33 The angle is at a given position. At the same time, through the roll button on the console 33, the servo motor 15 is controlled to make the roll table 23 roll or stop rolling, simulating the roll and pitch attitude of the micro turbojet engine 1 in the air; the roll can be given by the industrial computer. and the rate of change of the pitch angle, so that the engine attitude test bench rolls and pitches at a given rate, and obtains various technical parameters of the engine in the actual attitude in the air.

以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (10)

1. A rolling and pitching attitude test bed for a micro engine comprises the micro engine and a supporting base and is characterized by further comprising a pitching test bed, wherein the pitching test bed is arranged on the supporting base through a pitching device which drives the pitching test bed to perform pitching and pitching motions; the miniature engine is fixedly arranged on the rolling platform, the rolling platform is arranged on the pitching test bed through a rolling device which drives the rolling platform to perform rolling motion, and the pull pressure sensor is arranged on the pitching test bed below the rolling device; the micro engine is provided with a pressure sensor, a compressor rear temperature sensor and an oil pipe quick joint arranged on the side of an air inlet at the front end of the micro engine; a vibration sensor, a rotating speed sensor, an inclination angle sensor and a tail nozzle temperature sensor are arranged on the rolling table; the system also comprises a data acquisition card and a flowmeter which are arranged on the lower supporting platform, and the engine kerosene is connected into an oil pipe quick joint of the micro turbojet engine through the flowmeter; the vibration sensor, the rotating speed sensor, the inclination angle sensor, the tail nozzle temperature sensor, the gas compressor rear temperature sensor, the pressure sensor and the pull pressure sensor send sensing signals to the data acquisition card, the sensing signals are converted into digital signals through the data acquisition card and then transmitted to the electrical control cabinet, and the electrical control cabinet is further electrically connected with the pitching device and the rolling device and used for controlling the pitching device and the rolling device.
2. The rolling and pitching attitude test bed of the micro-engine as claimed in claim 1, wherein said pitching means comprises two connecting shafts mounted on the bottom of the pitching test bed through connecting shaft supports, and the two connecting shafts are disposed corresponding to the front and rear ends of the micro-engine; one connecting shaft is movably arranged in a hole in one end of the supporting rib plate in a penetrating manner, and the other end of the supporting rib plate is fixedly arranged on the supporting base; the servo electric cylinder is arranged at the upper end of the servo electric cylinder, and an upper bracket of the servo electric cylinder is movably connected with the other connecting shaft; a servo electric cylinder lower support connecting shaft is fixed on the supporting base through a second connecting shaft support, a servo electric cylinder lower support arranged at the lower end of the servo electric cylinder is movably connected with the lower support connecting shaft, the servo electric cylinder is electrically connected with an electric control cabinet, and the electric control cabinet controls the servo electric cylinder to move up and down so as to realize the pitching and pitching movement of the pitching test bed.
3. The rolling and pitching attitude test bed for the micro-engine according to claim 2, wherein the supporting base comprises an upper supporting plate, a lower supporting plate and a vertical plate, the upper supporting plate is disposed on the upper portion of one side of the vertical plate, the lower supporting plate is disposed on the lower portion of the other side of the vertical plate, the supporting rib plate is fixedly disposed on the upper supporting plate, and the lower support connecting shaft is fixedly disposed on the lower supporting plate.
4. The microengine roll-pitch attitude testing stand as claimed in claim 1, wherein the rolling device comprises a roll table mounted on a roll table support by a support rotor, the roll table support being disposed on the pitch testing stand, the roll table being rotatable along the axis of the microengine, the roll table having a semi-arc recess with a semi-arc cross-section, the microengine being fixedly mounted in the semi-arc recess of the roll table, a gear being provided on an outer surface of one end of the roll table, the gear being engaged with a gear of a motor, the motor driving the gear of the motor thereby rotating the roll table; the electric control cabinet controls the motor to realize the rotation of the rolling table.
5. The attitude test bed of a micro-engine according to claim 4, wherein a roll bed fixing block is further provided at one end of the roll bed, and the roll bed fixing block is fixedly mounted on the pitch test bed; and a fixed block bearing is arranged on the fixed block of the rolling table and tightly presses the inner side of the semi-arc-shaped groove of the rolling table.
6. The attitude test bed of a micro-engine according to claim 4, wherein a slide groove is provided at the bottom of the roll table in the rolling direction of the roll table, and a tension/pressure sensor is provided in the slide groove.
7. The attitude testing stand for the micro-engine according to claim 4, wherein sensor mounting platforms are provided along both sides of the semi-arc recess of the rolling table, the rotation speed sensor is mounted on the sensor mounting platforms through a rotation speed sensor positioning plate, the tilt sensor is fixed on the sensor mounting platforms through bolts, and the jet nozzle temperature sensor is supported at the jet nozzle outlet of the micro-engine through two sensor fixing rings correspondingly provided on the sensor mounting platforms.
8. The micro-engine attitude test bed of claim 4, wherein said micro-engine is fixed in a semi-arc recess of a roll table by a positioning ring, said vibration sensor being mounted on said positioning ring.
9. The attitude test bed for the micro-engine according to claim 1, wherein the pressure sensor and the compressor rear temperature sensor are installed at the outlet section of the compressor of the micro-engine and symmetrically arranged in the direction perpendicular to the axis of the micro-engine, and the oil pipe quick connector is arranged on the side of the air inlet at the front end of the micro-engine.
10. The attitude test bed of a micro-engine according to any one of claims 1 to 9, wherein said data acquisition cards comprise at least two and are respectively mounted on both sides of said supporting base; an industrial personal computer is arranged in the electrical control cabinet, a control console is arranged on the electrical control cabinet, a display and a control console for controlling the pitching device and the rolling device are arranged on the control console, and the display and the control console are respectively and electrically connected with the industrial personal computer; the data collected by the tension pressure sensor, the rotating speed sensor, the vibration sensor, the tail nozzle temperature sensor, the pressure sensor, the gas compressor rear temperature sensor and the inclination angle sensor are received by the data acquisition card, converted into digital signals and transmitted to the industrial personal computer, and displayed on a display of the console, and final thrust values at different angles are output on the display through the pitching angle value and the calculation program of the industrial personal computer.
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