CN103940606A - Gearbox fault diagnosis experiment platform - Google Patents
Gearbox fault diagnosis experiment platform Download PDFInfo
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- CN103940606A CN103940606A CN201410133119.6A CN201410133119A CN103940606A CN 103940606 A CN103940606 A CN 103940606A CN 201410133119 A CN201410133119 A CN 201410133119A CN 103940606 A CN103940606 A CN 103940606A
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Abstract
The invention provides a gearbox fault diagnosis experiment platform which comprises a gearbox. An input shaft of the gearbox is connected with a motor; an axle offset adjusting device is arranged at least at one end of an output shaft of the gearbox; bearing bases at the two ends of each gear shaft in the gearbox and the two axial ends of the motor are respectively provided with an acceleration vibration sensor; the acceleration vibration sensors and a vibration detector are connected, and the vibration detector is connected with a computer. By means of the axle offset adjusting device, the gear shafts achieve vertical and horizontal offset in a certain range relative to the axis center and are misaligned to a simulated axis. The experiment platform can simulate a rotor unbalance fault, a gear tooth breaking fault and a shaft crack fault at different rotation speeds, and provides experiment conditions for research of a fault diagnosis theory. Vibration signals of the gearbox in a normal state are detected through the vibration detector, then vibration signals under a fault state are detected, and characteristics and features of faults of the gearbox are analyzed through comparison of normal signals and fault signals.
Description
Technical field
The invention relates to a kind of Fault Diagnosis of Gear Case device, relate in particular to a kind of Fault Diagnosis of Gear Case experiment porch.
Background technology
Be accompanied by the fast development of Chinese national economy, the also high speed developments of every profession and trade such as the energy, traffic, building, machinery, and gear is because have the advantages such as compact conformation, load-bearing capacity is large, transmission efficiency precision is high, working stability is reliable, make it be widely used as connection and the power transmission in plant equipment, in any heavy mechanical equipment, have the vital role of not replacing.In modern production, plant equipment is towards robotization, flexibility, high-level efficiency, when high-performance future development, also get over maximization, Qiang Zaihua, serialization, complicated, production scale is increasing, functions of the equipments from strength to strength, system authority becomes increasingly complex, continuous operating time is more and more longer, although improved like this production efficiency, increase output, reduce production cost, but meanwhile, the loss that gear distress causes is also more and more serious, slight situation is that plant produced line is shut down stopping production, what situation was serious even can cause casualties, affect even whole industry prestige on quality etc. of company.Therefore, no matter be from economic angle, or from security standpoint, carry out Gear Fault Diagnosis and all have very important significance.Consulting related data knows, more external developed countries, as the U.S., Britain, Japan, Sweden etc. have not singly set up special fault diagnosis research institution center, in the practical application of fault diagnosis, more obtain a lot of achievements, develop corresponding instrument and equipment.And China's fault diagnosis research is started late, theoretical developments approaches rapidly world level, but on the equipment of practical application and instrument development and developed country also have certain gap, and while carrying out fault diagnosis still taking professional's analysis as main, diagnostic instrments and analytic system are to be only taken as auxiliary handling implement to use, larger to people's degree of dependence.In recent years, R&D institution's gear box testing device used is mechanical power closed or electric power enclosed type operating type gear test stand mostly, be mainly used in observing single (or single to) a certain fault of gear generating process under single condition, the feature of these gear box testing devices be cost low, be convenient to install, be convenient to observe measure, but cannot realize replacing, the frequency control of motor and the adjusting of load of variety classes and different faults gear, be not easy to the research of gear failure diagnosing method.
In order to address the above problem, development fault diagnosis experiment with gear case is at the right time and effective measures, not only has higher teaching research and is worth, and the more important thing is solution physical fault problem is had to very strong practicality.
Thus, the inventor relies on experience and the practice of being engaged in for many years relevant industries, proposes a kind of Fault Diagnosis of Gear Case experiment porch, to overcome the defect of prior art.
Summary of the invention
The object of the present invention is to provide a kind of Fault Diagnosis of Gear Case experiment porch, adopt axle bias-adjusted unit simulation Shaft misalignment, and this experiment porch can also be simulated rotor unbalance fault, gear tooth breakage fault, axle crack fault under different rotating speeds, for the research of Troubleshooting Theory provides experiment condition.
The object of the present invention is achieved like this, a kind of Fault Diagnosis of Gear Case experiment porch, and described experiment porch comprises a gear case, the input shaft of described gear case is connected with motor; One axle offset adjusting apparatus is at least set in gearbox output shaft one end; In described gear case, the bearing seat position at each gear shaft two ends and the axial end positions of motor are respectively equipped with acceleration vibration transducer; Described acceleration vibration transducer is connected with vibration-detecting instrument, and described vibration-detecting instrument is connected in computer.
In a preferred embodiments of the present invention, described gear case is secondary gearbox; Intermediate shaft one end of described gear case also arranges an axle offset adjusting apparatus.
In a preferred embodiments of the present invention, the gear arranging in described gear case is straight-tooth gear or angular gear.
In a preferred embodiments of the present invention, described motor is connected with frequency converter.
In a preferred embodiments of the present invention, described gearbox output shaft is connected with powder clutch by shaft coupling.
In a preferred embodiments of the present invention, the casing of described gear case is the opening-like integral structure in top, and each gear shaft is arranged on the middle part of gear case abreast, and casing open top is provided with transparent box cover; On described box bilateral wall, the installation site of corresponding each gear shaft is respectively equipped with by casing top slots to the installation of downward-extension, described each gear shaft is positioned over the middle part of gear case by corresponding installation fluting respectively, and is fixed on wall box by the bearing seat at two ends; In described each installation fluting, be fixed with closure plate.
In a preferred embodiments of the present invention, described axle offset adjusting apparatus comprises that frame is adjusted in biasing, bearing seat is installed carrier and Gaskets; Described biasing adjusts that frame is positioned at wall box lateral surface and around corresponding gear shaft setting, the U-shaped fixation wall that frame comprises opening upwards and is fixedly connected with sidewall is adjusted in biasing, the opening part of U-shaped fixation wall is removably installed a horizontally disposed removable wall, and described removable wall and U-shaped fixation wall jointly form square biasing and adjust frame; Described bearing seat is installed carrier and is square structure, bearing seat is installed carrier and is arranged on biasing adjustment frame inner side, the sidewall that bearing seat installation carrier is formed by a square floor and base plate surrounding forms, and square floor center is provided with can be through the open-work of described gear shaft; Described bearing seat is fixed on described bearing seat and installs on the base plate of carrier, and bearing seat is installed carrier and is fixed on by the sidewall of its surrounding in the U-shaped fixation wall and removable wall of biasing adjustment frame; Between each sidewall of described installation carrier and corresponding fixation wall or removable wall, be provided with Gaskets.
In a preferred embodiments of the present invention, described bearing seat is installed by each sidewall of carrier and the Gaskets of adjusting between frame of setovering includes Gaskets, lower Gaskets, left Gaskets and right Gaskets; Upper and lower Gaskets and left and right Gaskets match respectively use; Wherein go up, the thickness of left Gaskets is standard value ± α mm, under, the thickness of right Gaskets is standard value
α mm.
In a preferred embodiments of the present invention, described standard value is 5mm, and α is 0,0.5,1,1.5,2mm.
From the above mentioned, Fault Diagnosis of Gear Case experiment porch of the present invention, adopts axle offset adjusting apparatus, gear shaft is realized within the specific limits with respect to axle center and setovered up and down, simulates thus the situation of Shaft misalignment; And this experiment porch can also be simulated rotor unbalance fault, gear tooth breakage fault, axle crack fault under different rotating speeds, for the research of Troubleshooting Theory provides experiment condition.Adopt vibration-detecting instrument to measure the vibration signal under gear case normal condition, and then measure the vibration signal under malfunction, by the contrast of normal and fault-signal, analyze feature and the feature of gearbox fault; Owing to thering is frequency converter and powder clutch, can also simulate the fault under various rotating speed and load, analyze fault signature under different rotating speeds and load and whether can change.
Brief description of the drawings
The following drawings is only intended to the present invention to schematically illustrate and explain, not delimit the scope of the invention.Wherein:
Fig. 1: be Fault Diagnosis of Gear Case experiment porch theory structure schematic diagram of the present invention.
Fig. 2: be the gear box structure schematic diagram of Fault Diagnosis of Gear Case experiment porch of the present invention.
Fig. 3: be B-B place sectional structure schematic diagram in Fig. 2.
Fig. 4 A: be the structural representation of middle gear box body of the present invention.
Fig. 4 B: be the plan structure schematic diagram of Fig. 4 A.
Fig. 4 C: be the backsight structural representation of Fig. 4 A.
Fig. 4 D: be the side-looking structural representation of Fig. 4 A.
Fig. 5 A: be the structural representation of bottom bracket installation carrier of the present invention.
Fig. 5 B: be the sectional structure schematic diagram of Fig. 5 A.
Fig. 6 A: be the structural representation of Plays pad of the present invention.
Fig. 6 B: be the side-looking structural representation of Fig. 6 A.
Embodiment
Understand for technical characterictic of the present invention, object and effect being had more clearly, now contrast brief description of the drawings the specific embodiment of the present invention.
As shown in Figure 1, the present invention proposes a kind of Fault Diagnosis of Gear Case experiment porch 1000, and described experiment porch 1000 comprises a gear case 100, and the input shaft 1 of described gear case 100 is connected with motor 200; At least in gearbox output shaft 2 one end, one axle offset adjusting apparatus 300 is set; In described gear case 100, the bearing seat position at each gear shaft two ends and the axial end positions of motor 200 are respectively equipped with acceleration vibration transducer 500; Described acceleration vibration transducer 500 is connected (not shown) with vibration-detecting instrument, and described vibration-detecting instrument is connected in computer (not shown).
From the above mentioned, this experiment porch adopts axle offset adjusting apparatus, gear shaft is realized within the specific limits with respect to axle center and setovered up and down, simulates thus the situation of Shaft misalignment; The present invention gathers the signal under gear case nominal situation and unusual service condition by acceleration vibration transducer, researchs and analyses fault signature and the rule of each signal, to identify fault type, for the research of Troubleshooting Theory provides more complete experiment condition.
Further, in the present embodiment, described gear case is secondary gearbox; Intermediate shaft 3 one end of described gear case also arrange an axle offset adjusting apparatus 300; Preferably, the axle offset adjusting apparatus 300 that the axle offset adjusting apparatus 300 that output shaft 2 one end arrange and intermediate shaft 3 one end arrange is arranged on respectively the both sides (can certainly be arranged on casing the same side, but likely can cause the problems such as inconvenience is installed) of gear case body 4.
In the present embodiment, gear Z1, Z2, Z3 and the Z4 arranging in described gear case is straight-tooth gear, can be also angular gear.
As shown in Figure 2 and Figure 3, in the present embodiment, the casing 4 of described gear case is the opening-like integral structure in top (non-two-piece unit structure), input shaft 1, output shaft 2 and intermediate shaft 3 are arranged on the middle part of gear case body 4 abreast, and input shaft 1, output shaft 2 and intermediate shaft 3 two ends are respectively equipped with bearing and corresponding bearing seat 11,21 and 31; Casing 4 open tops are covered with transparent box cover (not shown, box cover is a transparent resin plate, can observe inner gear movement after assembling); As shown in Fig. 4 A～Fig. 4 D, on described casing 4 two sides, the installation site of corresponding each gear shaft is respectively equipped with the installation fluting 41 to downward-extension by casing 4 tops, described each gear shaft is positioned over the middle part of gear case by corresponding installation fluting 41 respectively, and is fixed on casing 4 sidewalls by the bearing seat 11,21,31 at two ends respectively; In described each installation fluting 41, be fixed with closure plate 42.
As shown in Fig. 2, Fig. 3, Fig. 4 A～Fig. 4 D, in the present embodiment, described axle offset adjusting apparatus 300 comprises that frame 301 is adjusted in biasing, bearing seat is installed carrier 30 as one kind 2 and Gaskets 303; Described biasing is adjusted frame 301 and is positioned at casing 4 sidewall lateral surfaces and arranges around corresponding gear shaft (output shaft 2 or intermediate shaft 3), the U-shaped fixation wall 3011 that frame 301 comprises opening upwards and is fixedly connected with sidewall is adjusted in biasing, the opening part of U-shaped fixation wall is removably installed a horizontally disposed removable wall 3012, and described removable wall 3012 is adjusted frame 301 with the biasing of the common formation square of U-shaped fixation wall 3011; Described bearing seat is installed carrier 30 as one kind 2 and is square structure, bearing seat is installed carrier 30 as one kind 2 and is arranged on biasing adjustment frame 301 inner sides, as shown in Fig. 5 A, Fig. 5 B, the sidewall 3022 that bearing seat installation carrier 30 as one kind 2 is formed by a square floor 3021 and base plate surrounding forms, and square floor 3021 centers are provided with can be through the open-work 30211 of described gear shaft; Corresponding bearing seat 12 or 13 is fixed on described bearing seat and installs on the base plate 3021 of carrier 30 as one kind 2, in the present embodiment, on square floor 3021, be provided with multiple the first bolts hole 30212 around open-work 30211, can bearing seat be fixedly mounted on to bearing seat by bolt and install on the base plate 3021 of carrier; Bearing seat is installed on carrier 30 as one kind 2 sidewalls 3022 and is respectively equipped with multiple the second bolts hole 30221, on the U-shaped fixation wall 3011 of described biasing adjustment frame 301 and removable wall 3012, correspondence is provided with perforation, and the sidewall that has bolt that bearing seat is installed to carrier surrounding is fixed in the U-shaped fixation wall and removable wall of biasing adjustment frame; Between each sidewall of described installation carrier and corresponding fixation wall or removable wall, Gaskets 303(is set as shown in Fig. 6 A, Fig. 6 B).
Gaskets is the pad of a series of thickness, can regulating shaft bearing be installed by the biasing displacement of carrier by standard of replacement pad, produces the big or small situation that misaligns of different amounts thereby simulate corresponding gear shaft.In the present embodiment, the Gaskets 303 that each sidewall of described bearing seat installation carrier and biasing are adjusted between frame includes Gaskets 3031, lower Gaskets 3032, left Gaskets 3033 and right Gaskets 3034; Upper and lower Gaskets and left and right Gaskets match respectively use; Wherein go up, the thickness of left Gaskets is standard value ± α mm, under, the thickness of right Gaskets is standard value α mm.In the present embodiment, described standard value is 5mm, and α is 0,0.5,1,1.5,2mm.By changing the thickness of Gaskets, the amount of misaligning that can make axle one end is a mm; By changing the size of a, can simulate different centerings and measure big or small failure condition.
In the present embodiment, described motor is connected with frequency converter (not shown), utilizes frequency converter can realize the stepless speed regulation of gear case rotating speed.
In the present embodiment, described gearbox output shaft is connected with powder clutch 400 by shaft coupling, can regulating tooth roller box load by the voltage that regulates powder clutch 400.
Below by a specific embodiment, the use procedure of Fault Diagnosis of Gear Case experiment porch of the present invention is made an explanation.
The gear case of the present embodiment is double reduction, and gear adopts straight-tooth gear or angular gear.Wherein one-level spur gear is Z1/Z2=34/96, and secondary spur gear is Z3/Z4=48/86; One-level spiral gear is Z1/Z2=34/92; Secondary spiral gear is Z3/Z4=46/81.Gear case base areas is wide 780mm × long 1100mm; After assembling, be highly 400mm; Motor is Y2-132M-4, power 7.5KW, rated speed 1440RPM; Gear case body is of a size of long 720mm × wide 500mm × high 300mm.The LC8004 hyperchannel vibrating data collection device (adopting acceleration vibration transducer to measure data) that Test Data Collecting instrument (vibration-detecting instrument) is epoch Long Cheng.
Specific experiment scheme is as follows:
One, preliminary preparation:
The gear wheel Z2 of intermediate shaft is ground off to a tooth, for gear tooth breakage experiment, be referred to as fault gear here.
By a crackle of intermediate shaft cutting out, for the experiment of axle crackle, be referred to as fault axle here.
Threephase asynchronous machine (Y2-132M-4) rated speed is 1440r/min, and magnetic pole logarithm is 2.Corresponding rotating speed formula is: n=60f(1 – s)/p.
Wherein: n---synchronous speed; F---supply frequency; P---motor number of pole-pairs; S---revolutional slip.Each frequency f, corresponding to a rotating speed, regulates f by frequency converter, can obtain different rotating speeds.Under every kind of rotating speed (rotating speed can be set voluntarily), 5 groups of data of repeated acquisition.
By regulating the voltage of powder clutch, the gear case Vibration Condition under test different loads.Under every kind of load (load can be set voluntarily), 5 groups of data of repeated acquisition.
Two, experimentation:
Shown in Fig. 1, experimental procedure is as follows:
1) gear case normal condition experimental data gathers.
All axles of gear case are all assembled, after adjusting, there is no bias.After operation, measure the vibration signal of the bearing seat position (as far as possible measuring the data of three directions) at each gear shaft two ends and the axial end positions (motor bearings) of motor 200.
2) gear tooth breakage experiment.
Measure after the signal of normal gear, fault gear has been replaced to the gear wheel Z2 of intermediate shaft 3, then measured the vibration signal at the bearing seat position place at intermediate shaft 3 two ends.
3) Shaft misalignment experiment.
(1) measured after the signal of normal gear, regulated the axle bias-adjusted device 300 of intermediate shaft 3, intermediate shaft 3 is departed to center one segment distance, offset direction can be up and down, and the distance departing from can regulate successively according to Gaskets.
(2) the axle bias-adjusted device 300 of regulation output axle 2, departs from center one segment distance by output shaft 2, and offset direction can be up and down, and the distance departing from can regulate successively according to Gaskets.
(3) regulate the axle bias-adjusted device of intermediate shaft 3 and the axle bias-adjusted device of output shaft 2 simultaneously, intermediate shaft and output shaft are departed to center one segment distance, offset direction can be up and down, and the distance departing from can regulate successively according to Gaskets.
4) axle crackle experiment.
Measure after the signal of normal gear, fault axle has been replaced to intermediate shaft, then measured the vibration signal at the bearing seat position place at intermediate shaft 3 two ends.
5) after replacing spiral gear, repeat 2)～4) step.
From the above mentioned, Fault Diagnosis of Gear Case experiment porch of the present invention compared with prior art tool have the following advantages:
(1) experiment porch gathers the signal of gear case nominal situation and unusual service condition by sensor, researchs and analyses the feature of each signal, thereby reaches the object of identification fault type, for the research of Troubleshooting Theory provides more complete experiment condition.
(2) in order to gather the signal of gear case under various unusual service conditions, fault gear and fault axle have specially been designed, more fully to analyze gear distress; Can, by changing spur gear and spiral gear, analyze the fault of two kinds of gears.
(3) gearbox output shaft place is provided with powder clutch, to increase load, can simulate the failure condition of different loads lower gear.
(4) motor of gear case is equipped with frequency converter, can carry out frequency control, and can realize the stepless time adjustment of gear case.
(5) this experiment porch adopts axle offset adjusting apparatus, gear shaft is realized within the specific limits with respect to axle center and setovered up and down, simulates thus the situation of Shaft misalignment.
(6) the contingent various faults of gear case that the present invention can use commercial production are simulated, and gather the signal of gear case nominal situation and unusual service condition by sensor, research and analyse the feature of each signal, simple to operate.
The foregoing is only the schematic embodiment of the present invention, not in order to limit scope of the present invention.Any those skilled in the art, not departing from equivalent variations and the amendment done under the prerequisite of design of the present invention and principle, all should belong to the scope of protection of the invention.
Claims (9)
1. a Fault Diagnosis of Gear Case experiment porch, described experiment porch comprises a gear case, the input shaft of described gear case is connected with motor; It is characterized in that: an axle offset adjusting apparatus is at least set in gearbox output shaft one end; In described gear case, the bearing seat position at each gear shaft two ends and the axial end positions of motor are respectively equipped with acceleration vibration transducer; Described acceleration vibration transducer is connected with vibration-detecting instrument, and described vibration-detecting instrument is connected in computer.
2. Fault Diagnosis of Gear Case experiment porch as claimed in claim 1, is characterized in that: described gear case is secondary gearbox; Intermediate shaft one end of described gear case also arranges an axle offset adjusting apparatus.
3. Fault Diagnosis of Gear Case experiment porch as claimed in claim 1 or 2, is characterized in that: the gear arranging in described gear case is straight-tooth gear or angular gear.
4. Fault Diagnosis of Gear Case experiment porch as claimed in claim 1 or 2, is characterized in that: described motor is connected with frequency converter.
5. Fault Diagnosis of Gear Case experiment porch as claimed in claim 1 or 2, is characterized in that: described gearbox output shaft is connected with powder clutch by shaft coupling.
6. Fault Diagnosis of Gear Case experiment porch as claimed in claim 1 or 2, it is characterized in that: the casing of described gear case is the opening-like integral structure in top, each gear shaft is arranged on the middle part of gear case abreast, and casing open top is provided with transparent box cover; On described box bilateral wall, the installation site of corresponding each gear shaft is respectively equipped with by casing top slots to the installation of downward-extension, described each gear shaft is positioned over the middle part of gear case by corresponding installation fluting respectively, and is fixed on wall box by the bearing seat at two ends; In described each installation fluting, be fixed with closure plate.
7. Fault Diagnosis of Gear Case experiment porch as claimed in claim 6, is characterized in that: described axle offset adjusting apparatus comprises that frame is adjusted in biasing, bearing seat is installed carrier and Gaskets; Described biasing adjusts that frame is positioned at wall box lateral surface and around corresponding gear shaft setting, the U-shaped fixation wall that frame comprises opening upwards and is fixedly connected with sidewall is adjusted in biasing, the opening part of U-shaped fixation wall is removably installed a horizontally disposed removable wall, and described removable wall and U-shaped fixation wall jointly form square biasing and adjust frame; Described bearing seat is installed carrier and is square structure, bearing seat is installed carrier and is arranged on biasing adjustment frame inner side, the sidewall that bearing seat installation carrier is formed by a square floor and base plate surrounding forms, and square floor center is provided with can be through the open-work of described gear shaft; Described bearing seat is fixed on described bearing seat and installs on the base plate of carrier, and bearing seat is installed carrier and is fixed on by the sidewall of its surrounding in the U-shaped fixation wall and removable wall of biasing adjustment frame; Between each sidewall of described installation carrier and corresponding fixation wall or removable wall, be provided with Gaskets.
8. Fault Diagnosis of Gear Case experiment porch as claimed in claim 7, is characterized in that: described bearing seat is installed by each sidewall of carrier and the Gaskets of adjusting between frame of setovering includes Gaskets, lower Gaskets, left Gaskets and right Gaskets; Upper and lower Gaskets and left and right Gaskets match respectively use; Wherein go up, the thickness of left Gaskets is standard value ± α mm, under, the thickness of right Gaskets is standard value
α mm.
9. Fault Diagnosis of Gear Case experiment porch as claimed in claim 8, is characterized in that: described standard value is 5mm, and α is 0,0.5,1,1.5,2mm.
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| CN201410133119.6A CN103940606B (en) | 2014-04-03 | 2014-04-03 | Fault Diagnosis of Gear Case experiment porch |
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| CN201410133119.6A CN103940606B (en) | 2014-04-03 | 2014-04-03 | Fault Diagnosis of Gear Case experiment porch |
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| CN103940606B CN103940606B (en) | 2016-03-30 |
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| CN106679973A (en) * | 2017-01-23 | 2017-05-17 | 西华大学 | Fault simulation experiment box and device thereof |
| CN106769023A (en) * | 2017-01-23 | 2017-05-31 | 西华大学 | Gear box fault simulation device and system thereof |
| CN107269518A (en) * | 2016-03-30 | 2017-10-20 | 住友重机械工业株式会社 | The trouble-shooter of gear motor |
| CN109115489A (en) * | 2018-08-02 | 2019-01-01 | 清华大学 | gear fatigue test device water cooling system |
| CN109564142A (en) * | 2016-08-08 | 2019-04-02 | Zf 腓德烈斯哈芬股份公司 | Teeth portion testboard |
| CN109738185A (en) * | 2019-02-01 | 2019-05-10 | 江苏省金象传动设备股份有限公司 | Consider that gear misaligns the gear fatigue tester with flank of tooth unbalance loading |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269518A (en) * | 2016-03-30 | 2017-10-20 | 住友重机械工业株式会社 | The trouble-shooter of gear motor |
| CN109564142A (en) * | 2016-08-08 | 2019-04-02 | Zf 腓德烈斯哈芬股份公司 | Teeth portion testboard |
| CN106679973A (en) * | 2017-01-23 | 2017-05-17 | 西华大学 | Fault simulation experiment box and device thereof |
| CN106769023A (en) * | 2017-01-23 | 2017-05-31 | 西华大学 | Gear box fault simulation device and system thereof |
| CN106769023B (en) * | 2017-01-23 | 2019-05-07 | 西华大学 | Gear box fault simulation device and system thereof |
| CN106679973B (en) * | 2017-01-23 | 2019-09-17 | 西华大学 | Fault simulation experiment box and device thereof |
| CN109115489A (en) * | 2018-08-02 | 2019-01-01 | 清华大学 | gear fatigue test device water cooling system |
| CN109738185A (en) * | 2019-02-01 | 2019-05-10 | 江苏省金象传动设备股份有限公司 | Consider that gear misaligns the gear fatigue tester with flank of tooth unbalance loading |
| CN109738185B (en) * | 2019-02-01 | 2023-09-26 | 江苏省金象传动设备股份有限公司 | Gear fatigue testing machine considering gear misalignment and gear surface unbalanced load |
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| Publication number | Publication date |
|---|---|
| CN103940606B (en) | 2016-03-30 |
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