CN109443758A - A kind of compound diagnostic device of rotating machinery - Google Patents

A kind of compound diagnostic device of rotating machinery Download PDF

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Publication number
CN109443758A
CN109443758A CN201811639531.XA CN201811639531A CN109443758A CN 109443758 A CN109443758 A CN 109443758A CN 201811639531 A CN201811639531 A CN 201811639531A CN 109443758 A CN109443758 A CN 109443758A
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China
Prior art keywords
bearing
sound pressure
pressure sensor
rotating machinery
box
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CN201811639531.XA
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Chinese (zh)
Inventor
葛江华
李云飞
郑智杰
牛阳阳
徐海峰
郭海乐
王亚萍
崔巍
许迪
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Priority to CN201811639531.XA priority Critical patent/CN109443758A/en
Publication of CN109443758A publication Critical patent/CN109443758A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/021—Gearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G01M13/045—Acoustic or vibration analysis

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

本发明公开了一种旋转机械复合诊断装置。由基座和设置在基座上的电机、轴承实验装置、齿轮箱实验装置及检测装置组成，包括电机、弹性联轴器、同步轮、皮带、齿轮箱、磁粉制动器、温度传感器、加速度传感器、声压传感器、转轴、轴承座、固定支架、合页、隔音箱、螺栓、COCO80信号分析仪等。本实验新型通过电机带动轴承和齿轮箱内的齿轮旋转，通过COCO80信号分析仪采集滚动轴承和齿轮的振动、噪声和温度的数据并进行诊断。本发明设有多个传感器，可同时对轴承和齿轮进行全面的、实时的、快速的故障诊断，大幅改善试验台的实用性能。本发明实现对单一轴承的故障复合诊断，改善了试验台的综合性,并为旋转机械的优化设计提供极大的工程参考价值。

The invention discloses a rotary machinery composite diagnosis device. It consists of a base and a motor, a bearing experimental device, a gear box experimental device and a detection device set on the base, including a motor, an elastic coupling, a synchronous wheel, a belt, a gearbox, a magnetic powder brake, a temperature sensor, an acceleration sensor, Sound pressure sensor, shaft, bearing seat, fixed bracket, hinge, sound insulation box, bolt, COCO80 signal analyzer, etc. In this experiment, the motor drives the bearings and the gears in the gearbox to rotate, and the COCO80 signal analyzer collects and diagnoses the vibration, noise and temperature data of the rolling bearings and gears. The invention is provided with a plurality of sensors, which can simultaneously carry out comprehensive, real-time and fast fault diagnosis for the bearing and the gear, and greatly improves the practical performance of the test bench. The invention realizes the composite fault diagnosis of a single bearing, improves the comprehensiveness of the test bench, and provides great engineering reference value for the optimal design of the rotating machinery.

Description

A kind of compound diagnostic device of rotating machinery
Technical field
The present invention relates to a kind of fault detection means, the compound diagnostic device of especially a kind of rotating machinery is mainly used for The rotating machinery of domestic railway locomotive, vehicle and non-railway systems detects, and also can be used for bearing mnanufacture factory and gear manufacture factory Product quality detection.
Background technique
With the continuous development of modern industrial technology, plant-scale continuous increase, rotating machinery is applied to various industry Equipment is to support normally running at high speed for whole equipment.Bearing and gear are most common components in mechanical equipment, are claimed by people For mechanical joint, operating status will directly affect the quality of the performance of entire machine system.In industry, national defence, scientific skill Precision, performance, service life, reliability and each economic target of kernel component in the every field such as art, all with rotating machinery Have an inseparable connection, and rotating machinery industrial expansion be also related to the great technology equipment in China manufacture level and The export capacity of mechanical equipment.However, in actual production, machinery can be made to break down due to artificial and non-artificial. When mechanical equipment breaks down, production is seriously affected, or even will cause serious production accident.According to statistics, in machine system Most failure is as caused by rolling bearing and gear.So the fault diagnosis technology of rotating machinery, is always mechanical event One of the technology given priority in barrier diagnosis.
Rotating machinery plays the role of key in mechanical equipment.But present rotating machinery fault detection device is most It is diagnosed fault by single-sensor, such as the single signal fault detection to single bearing or gear-box.Such case Under, multiple rotating machineries cannot be not only detected simultaneously, and not can determine that rotating machinery fault position, measured answering for rotating machinery Close failure.And rotating machinery fault often causes such as temperature in a practical situation, sound, the variation of the Multiple factors such as vibration, So having great researching value using the combined failure of multi information sensor detection rotating machinery.
Summary of the invention
The technical problem to be solved by the present invention is the present invention be overcome at this stage most of rotation failure detection devices it is single A certain amount is detected to predict the limitation of bearing fault, introduces three temperature, acceleration, sound detection limits, it can real-time measurement The data of faulty bearings and normal bearing and analysis obtain bearing combined failure type, realize the combined failure detection of bearing； The present invention connects bearing experimental provision and gear box testing device, it can be achieved that examining simultaneously to the failure of bearing and gear with synchronizing wheel It surveys；Two shafts in middle (center) bearing experimental provision of the present invention are connected by shaft coupling, by loosening shaft coupling, that is, quick release axis Hold seat.
The present invention solves method used in its technical problem are as follows: a kind of compound diagnostic device of rotating machinery, including pedestal And motor, bearing test device, gear-box experimental provision and the detection device of setting on the base.The bearing test device packet Include bearing test device, shaft coupling, rolling bearing I, rolling bearing II, bearing block, bearing cover, shaft I, shaft II, axis Hold seat cushion block, synchronizing wheel I.The output axis connection of the shaft coupling left end and motor, right end are connect with shaft I, and the shaft I is logical It crosses shaft coupling and drives shaft II rotation, all placed tested rolling bearing on shaft I, shaft II places normal bearing, and motor mentions Shaft I, II is sent to for power；Described rolling bearing I, II have bearing block to be fixed, and have bearing block below bearing block Cushion block is allowed to holding level.
Gear-box experimental provision includes synchronizing wheel II, synchronous belt, gear-box and magnetic powder brake.Above the gear-box and There is acceleration transducer in side, for detecting the laterally and longitudinally vibration of inner gear of the gear box.The magnetic powder brake conduct Load is to provide load to the gear-box experimental provision and bearing test device.
Detection device includes temperature sensor module, acceleration transducer, sound pressure sensor and COCO80 signal analyzer. For the temperature sensor in bearing block side, acceleration transducer is individually positioned in the spiral shell that bearing block upper end is equipped with side end surface In pit, sound pressure sensor is placed on sliding block and carries out control height, the sound pressure sensor by sound pressure sensor support It can be with predetermined location on the line slide rail.The data of three sensors can pass through COCO80 signal analyzer Acquisition, and the relevant difference of normal bearing and faulty bearings is compared from two angles of temperature and vibration respectively, and carry out failure point Analysis；One sound pressure sensor is placed on measured bearing proximal end and tests the measured bearing noise, another sound pressure sensor is placed In the integrated noise for measuring environment and measured bearing compared with distant positions away from measured bearing, quilt under the same time is measured by the difference of the two The relative noise for surveying bearing more accurately completely divides under certain uncertainty through step analysis after consistency check Analyse bearing fault type；On the gear-box in gear-box experimental provision and there is acceleration transducer in side, for detecting The horizontal and vertical vibration of inner gear of the gear box, and the output line of above-mentioned all the sensors is all accessed by the hidden slot on pedestal Signal processing and analysis is carried out in COCO80 signal analyzer.
Technical effect of the invention: the testing stand is driven by a motor bearing rotary, is braked by magnetic powder brake, when rotated The temperature of different operating environment lower bearing, vibration, noise quantized value are measured by adjusting motor speed, is that normal bearing exists The value measured under equal ambient is compared, and bearing fault type is obtained in confidence interval.And the cross of gear-box is measured simultaneously To with extensional vibration quantized value and analyzing the failure of inner gear of the gear box；Event can be greatly improved by the real-time measurement of multi information Barrier diagnostic accuracy provides great value to the diagnosis of failure in engineering on practicability.
Detailed description of the invention
Fig. 1 is the axonometric drawing that the compound diagnostic device of a kind of rotating machinery provided by the invention removes sound proof box.
Fig. 2 is a kind of axonometric drawing of the compound diagnostic device of rotating machinery provided by the invention.
Fig. 3 is the cooperation figure of upper sound proof box and lower sound proof box in bearing test device of the invention.
Fig. 4 is the axonometric drawing that sound pressure sensor of the invention cooperates.
Fig. 1: (1) motor, (2) shaft coupling, (3) bearing block I, (4) acceleration transducer I, (5) temperature sensor, (6) axis Hold an end cap, sound proof box, (9) are tested rolling bearing, (10) bearing (ball) cover fastening bolt, (11) sound under sound proof box, (8) on (7) Pressure sensor module I, (12) shaft I, (13) sound pressure sensor module support, (14) sliding block, (15) sound pressure sensor II, (16) Shaft II, (17) normal rolling bearing, (18) synchronizing wheel I, (19) bearing block cushion block, (20) acceleration transducer II, (21) are same Step wheel II, (22) belt, (23) gear-box, (24) gear cage base fastening bolt, (25) gear-box support, (26) bearing base Fastening bolt, (27) bearing base, (28) magnetic powder brake support fastening bolt, (29) magnetic powder brake support, (30) magnetic powder Brake, (31) bearing block fastening bolt, (32) pedestal cushion socket, (33) COCO80 signal analyzer, (34) pedestal, (35) base Sliding rail, (38) motor fastening bolt are slided in seat groove, (36) hinge, (37).
Specific embodiment
In order to be easier the present invention and clearly be understood, below according to specific embodiment combination attached drawing to the invention It is further described in detail.
Fig. 1 and Fig. 2 is respectively to remove sound proof box and whole axis in a kind of compound diagnostic device of rotating machinery of the present invention to survey Figure, motor, bearing test device, gear-box experimental provision and detection device including pedestal and setting on the base.
Bearing test device includes bearing block I(3), acceleration transducer I (4), bearing cover (6), upper sound proof box (7), lower sound proof box (8), tested rolling bearing (9), bearing (ball) cover fastening bolt (10), shaft I(12), sound pressure sensor module Bracket (13), shaft II(16), normal rolling bearing (17), synchronizing wheel I(18), bearing block cushion block (19) and bearing base (27).Gear-box experimental provision includes synchronizing wheel II(21), gear-box (23), gear cage base fastening bolt (24), gear-box Support (25), bearing base fastening bolt (26), magnetic powder brake support fastening bolt (28), magnetic powder brake support (29), Magnetic powder brake (30).Detection device includes acceleration transducer I(4), acceleration transducer II (20), temperature sensor (5), Sound pressure sensor I (11), sound pressure sensor II (15), sound pressure sensor support (13), slider I (14), the analysis of COCO80 signal Instrument (33).
As shown in Figure 1, motor (1) is fixed on pedestal (34) by motor fastening bolt (35), pass through shaft coupling (2) and institute State the shaft I(12 in bearing test device) connection, shaft I(12) on place tested rolling bearing (9), be tested rolling bearing (9) fixation, shaft I(12 are tightened by bearing (ball) cover fastening bolt (10) by bearing block (3) and bearing cover (6)) and shaft II(16) by shaft coupling (2) connection perforation, and normal rolling bearing (17) is covered on shaft II(16), and have bearing block (3) pass through bearing (ball) cover fastening bolt (10) with bearing cover (6) and tighten fixation.In shaft II(16) right end and synchronizing wheel I (18) connecting, and connect realization same rotational speed, synchronizing wheel II(21 with synchronizing wheel II(21) by belt (22)) inner hole is connected to Gear-box (23), the gear-box (23) is fixed with gear cage base fastening bolt (24) by gear-box support (25), and leads to It crosses shaft coupling (2) to connect with magnetic powder brake (30), the magnetic powder brake (30) is fixed on magnetic powder brake support (29), institute State the pedestal that magnetic powder brake support (29) are fixed on gear-box experimental provision by magnetic powder brake support fastening bolt (28) On.The bearing base (27) of bearing block experimental provision and pedestal (34) are fixed by bearing base fastening bolt (26).Gear-box Device and pedestal (34) are fixed by gear cage base fastening bolt (24).
As Figure 1 and Figure 4, the temperature sensor (5) is bonded in tested rolling bearing (9) and the normal axis of rolling respectively Hold bearing block (3) side of (17), acceleration transducer I(4) it is individually positioned in the bearing block (3) and gear-box (23) of two bearings In the threaded hole that upper end is equipped with, acceleration transducer II (20) is individually positioned in the bearing block (3) and gear-box (23) of two bearings In the threaded hole that side is equipped with, sound pressure sensor I(11) it is used to detect tested rolling bearing (9), it is placed on sliding block (14), with Height is adjusted with sound pressure sensor module support (13) between sliding block (14), sound pressure sensor II (15) places sliding block at the far end On, between with sound pressure sensor module support (13) adjust height, the cooperation of two sliding blocks is fixed in sliding sliding rail (37), can be with It slides above it;COCO80 signal analyzer (33) is placed on pedestal (34), and the output line of all sensors all passes through The base recess (35) being equipped in pedestal (34) all accesses COCO80 signal analyzer (33).Sound pressure sensor is first adjusted before detection I(11) and sound pressure sensor II(15) position, when COCO80 signal analyzer (33) is detected can in real time, it is quick To the vibration of rotating machinery, temperature, noise signal data because obtain data have continuity, real-time and stability, So the comparing cell of normal bearing and faulty bearings is established when analysis, it is comprehensive from three temperature, noise, vibration angles Step analysis is carried out, and diagnoses gearbox fault simultaneously, obtains fault type in certain confidence interval.
As shown in Figure 2 and Figure 3, upper sound proof box (7) is opened and closed with lower sound proof box (8) by hinge (36), the upper sound insulation Case (7) is made with lower sound proof box (8) by acrylic board, sticks sound-proof material in its inner wall, for carrying out to tested rolling bearing (9) Sound insulation, and the outer wall of upper sound proof box (7) is equipped with handle, and lower sound proof box (7) is fixed on pedestal (2), and upper sound proof box (7) is under Sound proof box (8) is placed on position as shown in Figure 2, by the tested rolling bearing (9) in bearing test device, bearing block (3), sensing Device part is placed in it, the normal rolling bearing (17) in bearing test device is partially disposed in outside sound proof box, for surveying It is more accurate to try bearing noise.
Before experiment starts, adjust sound pressure sensor I(11) and sound pressure sensor II(15) position, make magnetic powder brake (30) power supply is in OFF state, closes all knobs.When work, sound proof box (7) in closing are opened motor (1), by motor (1) drive shaft I(12) rotation, pass through shaft coupling (2), shaft II(14), synchronizing wheel I(18), synchronizing wheel II(21), and then band Planetary gear and magnetic powder brake (33) rotation in movable tooth roller box (23), acquire respective signal by each sensor and pass to Signal analyzer carries out fault diagnosis.
The present invention provides the working environment of simulation for it.And rotation speed can be adjusted by motor in the device.Motor (1) it is fixed on pedestal (2) by motor fastening bolt (35), pedestal (2) bottom can have equipped with 6 pedestal cushion sockets (32) Influence of the vibration and then reduction of the reduction motor (1) of effect to experimental noise and vibration.The motor provides different turn for bearing Speed can provide different conditions.Normal rolling bearing (17) and faulty bearing (9) are driven by rotating shaft transmission, in order to Ensure it is the reliability of data measured enhancing under the same conditions, carries out shaft connection with shaft coupling.Its advantage is that can quickly tear open Fill tested rolling bearing (9) and its bearing block (3).Pedestal (2), pedestal vibration proof mounting (32), bearing block (3), bearing block cushion block (19), bearing base (27) matches in height guarantees shaft concentricity, increases the precision of bearing fit, reduces bearing rotary The frictional error generated in the process, influences failure analysis result.
When replacing bearing, motor power is closed, by two shaft couplings (3) between shaft I(12) and shaft II(16) It unclamps, loosens four bearing (ball) cover fastening bolts (10), remove bearing outer ring；The axis of bearing inner race is removed, by bearing inner race It removes, changes defective bearing, the component that front removes is loaded onto sequence, finally powers on and rotates.
To sum up, the present invention is connect by multiple sensors with COCO80 signal analyzer, the various data of test and Its curve changed can show and acquire on signal analyzer, by analyzing the vibration of measured bearing and normal bearing, making an uproar The signal datas such as sound, temperature carry out more comprehensive, accurate progress fault type diagnostic analysis, and measure the cross of gear-box simultaneously To with radial vibration signal, carry out the analysis detection of more system.Each component of the invention is first adjusted to experiment shape when test State can be test after inspection is errorless.The purpose of test is preferably diagnosis of the auxiliary people to rotating machinery fault, is mentioned High-precision and reliability, the present invention have great value to the actual condition detection of rotating machinery.
For those skilled in the art, the invention patent is not limited to the details of above-mentioned exemplary embodiment, and In the case where the spirit or essential attributes for following the invention patent, patent that the present invention can be realized in other specific forms.It is all Within the spirit and principles in the present invention, any simple modification made, equivalent replacement and simple improve should all be sent out in the present invention Within bright protection scope.In addition, it should be understood that although this specification is described in terms of embodiments, but not each implementation Mode only contains an independent technical solution.

Claims (9)

1.一种旋转机械复合诊断装置，包括基座及设置在基座上的轴承实验装置、齿轮箱实验装置和检测装置，其特征在于：所述轴承实验装置由两个转轴通过联轴器连接轴承，并在左侧通过联轴器连接电机，通过调节电机控制轴承旋转速度，并可快速拆装轴承；所述齿轮箱实验装置同步轮与轴承实验装置连接，通过齿轮箱转轴连接齿轮箱，再通过联轴器连接磁粉制动器，所述磁粉制动器用于对齿轮箱内齿轮和轴承实现装置进行制动并增加负载，在齿轮箱的上面和侧面分别放置加速度传感器，可测量齿轮箱内齿轮的横向振动与纵向振动从而检测齿轮复合故障；所述检测装置由温度传感器、加速度传感器、声压传感器和COCO80信号分析仪组成，其中温度传感器和加速度传感器固定在轴承实验装置的轴承座两侧上，温度传感器在其侧面，加速度传感器分别放置在轴承试验装置中轴承座侧端与上端设置的螺纹孔内，声压传感器在侧面通过一个直线滑轨固定，通过移动声压传感器下端的滑块进而移动声压传感器测得轴承不同位置的实时噪音数据。1. a composite diagnostic device for rotating machinery, comprising a base and a bearing test device, a gear box test device and a detection device that are arranged on the base, it is characterized in that: the bearing test device is connected by a coupling by two rotating shafts The bearing is connected to the motor through the coupling on the left side, the rotation speed of the bearing can be controlled by adjusting the motor, and the bearing can be quickly disassembled; the synchronous wheel of the gearbox experimental device is connected with the bearing experimental device, and the gearbox is connected through the gearbox shaft. Then connect the magnetic powder brake through the coupling. The magnetic powder brake is used to brake and increase the load of the gear box and the bearing realization device. Acceleration sensors are placed on the top and side of the gear box to measure the speed of the gear box. The lateral vibration and longitudinal vibration are used to detect the composite fault of the gear; the detection device is composed of a temperature sensor, an acceleration sensor, a sound pressure sensor and a COCO80 signal analyzer, wherein the temperature sensor and the acceleration sensor are fixed on both sides of the bearing seat of the bearing experimental device, The temperature sensor is on its side, the acceleration sensor is placed in the threaded holes set at the side end and the upper end of the bearing seat in the bearing test device, and the sound pressure sensor is fixed on the side by a linear slide rail, which is moved by moving the slider at the lower end of the sound pressure sensor. Sound pressure sensors measure real-time noise data at different locations of the bearing. 2.根据权利要求1所述的一种旋转机械复合诊断装置，其特征在于：所述轴承试验装置中的转轴一端通过联轴器与主轴联接，另一端与同步轮连接，两个同步轮之间用同步带连接，同步轮与齿轮箱、磁粉制动器连接用于对齿轮箱和轴承进行制动并提供负载。2 . The composite diagnostic device for rotating machinery according to claim 1 , wherein one end of the rotating shaft in the bearing test device is connected to the main shaft through a coupling, and the other end is connected to a synchronizing wheel, and the other end of the two synchronizing wheels is connected. 3 . It is connected by synchronous belt, and the synchronous wheel is connected with gearbox and magnetic powder brake to brake and provide load to gearbox and bearing. 3.根据权利要求1所述的一种旋转机械复合诊断装置，其特征在于：轴承座上方与侧面设有螺纹孔用于固定在其上的加速度传感器，在轴承座右方有用粘胶剂固定其上的温度传感器，3 . The composite diagnostic device for rotating machinery according to claim 1 , wherein threaded holes are provided above and on the side of the bearing seat for the acceleration sensor to be fixed thereon, and adhesive is used to fix it on the right side of the bearing seat. 4 . temperature sensor on the 电机的输出轴通过联轴器与主轴连接，当电机工作时，主轴便能旋转，用以测试各种条件下滚动轴承的故障情况。The output shaft of the motor is connected to the main shaft through a coupling. When the motor is working, the main shaft can rotate to test the failure of the rolling bearing under various conditions. 4.根据权利要求1所述的一种旋转机械复合诊断装置，其特征在于：轴承座、轴、主轴、加速度传感器、联轴器、温度传感器、声压传感器、噪声支承座、直线滑块导轨位于隔音箱内部，上下隔音箱通过合页连接实现开合；上下隔音箱合上可以有效的降低外界环境噪声对箱内声压传感器的干扰，从而使声压传感器准确的测量旋转机械在运行中的声音。4. A composite diagnostic device for rotating machinery according to claim 1, characterized in that: a bearing seat, a shaft, a main shaft, an acceleration sensor, a coupling, a temperature sensor, a sound pressure sensor, a noise bearing seat, a linear slider guide It is located inside the soundproof box, and the upper and lower soundproof boxes are opened and closed through hinge connections; closing the upper and lower soundproof boxes can effectively reduce the interference of external environmental noise on the sound pressure sensor in the box, so that the sound pressure sensor can accurately measure the rotating machinery in operation. the sound of. 5.根据权利要求2所述的一种旋转机械复合诊断装置，其特征在于：所述轴承座实验装置的两转轴之间连接，方便拆卸轴上轴承座；在基座各角均匀分布着小的圆柱减震器，可以减缓设备本身震动对声压传感器的影响。5. A composite diagnostic device for rotating machinery according to claim 2, characterized in that: the two rotating shafts of the bearing seat experimental device are connected to facilitate disassembly of the bearing seat on the shaft; The cylindrical shock absorber can slow down the impact of the vibration of the device itself on the sound pressure sensor. 6.根据权利要求1所述的一种旋转机械复合诊断装置，其特征在于：被测故障轴承放在隔音箱内部，正常轴承放在隔音箱外部。6 . The composite diagnostic device for rotating machinery according to claim 1 , wherein the fault bearing to be tested is placed inside the soundproof box, and the normal bearing is placed outside the soundproof box. 7 . 7.根据权利要求1所述的一种旋转机械复合诊断装置，其特征在于：为保证所有传动轴都在一条水平直线上，减少测试误差，除了有轴承座，还有轴承垫块来保证同轴度，从而减小了测量过程中造成的磨损，提高了故障检测精度。7. A composite diagnostic device for rotating machinery according to claim 1, characterized in that: in order to ensure that all transmission shafts are on a horizontal straight line and reduce test errors, in addition to bearing seats, there are bearing pads to ensure the same Axial degree, thus reducing the wear caused by the measurement process and improving the fault detection accuracy. 8.根据权利要求1所述的一种旋转机械复合诊断装置，其特征在于：轴承实验装置内包括轴承实验基座，齿轮箱装置内包括齿轮箱实验基座。8 . The composite diagnostic device for rotating machinery according to claim 1 , wherein the bearing test device includes a bearing test base, and the gear box device includes a gear box test base. 9 . 9.根据权利要求1所述的一种旋转机械复合诊断装置，其特征在于：声压传感器放置在声压传感器支架上，声压传感器固定在滑动滑轨的滑块上，滑块可以在滑动滑轨上移动。9. A rotary machinery composite diagnostic device according to claim 1, characterized in that: the sound pressure sensor is placed on the sound pressure sensor bracket, the sound pressure sensor is fixed on the slider of the sliding rail, and the slider can slide move on the rails.
CN201811639531.XA 2018-12-29 2018-12-29 A kind of compound diagnostic device of rotating machinery Pending CN109443758A (en)

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Application publication date: 20190308