CN205826309U - Automotive engine test bench and dynamometer machine vibration monitor system thereof - Google Patents
Automotive engine test bench and dynamometer machine vibration monitor system thereof Download PDFInfo
- Publication number
- CN205826309U CN205826309U CN201620421880.4U CN201620421880U CN205826309U CN 205826309 U CN205826309 U CN 205826309U CN 201620421880 U CN201620421880 U CN 201620421880U CN 205826309 U CN205826309 U CN 205826309U
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- dynamometer machine
- vibration
- monitor system
- acceleration sensor
- vibration monitor
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Abstract
This utility model relates to Engine Block Test field, discloses a kind of automotive engine test bench and dynamometer machine vibration monitor system thereof, and described dynamometer machine vibration monitor system includes: vibration detection device, the vibration values of detection dynamometer machine；And processor, it is connected with described vibration detection device, in the case of described vibration values exceedes predetermined threshold value, determines that described dynamometer machine breaks down.So can judge whether described dynamometer machine breaks down in time, it is possible to avoid causing security incident and maintenance cost, and improve testing efficiency.
Description
Technical field
This utility model relates to Engine Block Test field, in particular it relates to a kind of automotive engine test bench and dynamometer machine thereof
Vibration monitor system.
Background technology
Engine bench test is the particularly important ring in the reseach of engine stage, can be used to check electromotor overall
And the reliability of related components, so an electromotor be unable to do without bench test before dispatching from the factory.
At present, block testing stand typically has control zone, Liang Ge region, test block, can include oil supply system, power supply
System, compressed air system, cooling recirculation system, chilled water system, dynamometer machine, fuel consumption measurement equipment, data collecting system and
Control system forms.Wherein, data collecting system is generally used for gathering some status datas of electromotor, such as water temperature, oil pressure, enters
The parameters such as pressure at expulsion.
Dynamometer machine, is mainly used in the power of test engine, it is possible to set as gear-box, reductor, the loading of change speed gear box
Standby, for testing their transmission power.Dynamometer machine is a vitals in engine bench test, and it is the most relatively
For costliness.But, the status monitoring for dynamometer machine typically only has a bearing temperature, when bearing temperature exceedes alarm value, report
Alarming information will appear on control interface.And when bearing temperature raises, bearing lubrication had been lost efficacy, now bearing is the most serious
Impaired, it is easily caused the badly damaged of the accessories such as dynamometer machine rotor and bearing block, causes security incident, reduce testing efficiency, and
Cause great maintenance cost.
Utility model content
The purpose of this utility model is to provide a kind of automotive engine test bench and dynamometer machine vibration monitor system thereof, and this starts
Machine testboard bay and dynamometer machine vibration monitor system thereof can find dynamometer machine in time by the detection of the vibration to dynamometer machine
Failure condition, it is to avoid cause security incident and maintenance cost, and improve testing efficiency.
To achieve these goals, this utility model provides a kind of dynamometer machine vibration monitor system, and described dynamometer machine vibrates
Monitoring system includes: vibration detection device, the vibration values of detection dynamometer machine；And processor, with described vibration detection device even
Connect, in the case of described vibration values exceedes predetermined threshold value, determine that described dynamometer machine breaks down.
Preferably, described vibration detection device includes: horizontal acceleration sensor, for detecting the level of described dynamometer machine
Vibration velocity on direction；Axial acceleration sensor, for detecting the vibration velocity on the axial direction of described dynamometer machine；With
And vertical acceleration sensors, for detecting the vibration velocity in the vertical direction of described dynamometer machine.
Preferably, before described horizontal acceleration sensor is arranged on described dynamometer machine in the horizontal direction of end bearing block；Institute
State axial acceleration sensor to be arranged on before described dynamometer machine on the axial direction of end bearing block；And described normal acceleration passes
Sensor is arranged on before described dynamometer machine in the vertical direction of end bearing block.
Preferably, described vibration detection device also includes: vibration transmitters, with described horizontal acceleration sensor, described
Axial acceleration sensor and vertical acceleration sensors connect.
Preferably, described vibration transmitters is by low noise shielded cable and described horizontal acceleration sensor, described axle
Connect to acceleration transducer, described vertical acceleration sensors and described processor.
Preferably, described dynamometer machine vibration monitor system also includes alarm device, is connected with described processor, shakes described
Dynamic value is reported to the police in the case of exceeding predetermined threshold value.
Preferably, described dynamometer machine vibration monitor system also includes display device, is connected with described processor.
Preferably, described display device is connected by ethernet communication line with described processor.
Preferably, described processor is PLC.
Correspondingly, this utility model also provides for a kind of automotive engine test bench, and described automotive engine test bench includes above-mentioned
Dynamometer machine vibration monitor system.
By technique scheme, utilize the vibration values of vibration detection device detection dynamometer machine, according to the vibration of dynamometer machine
Value judges whether described dynamometer machine breaks down in time, it is possible to avoids causing security incident and maintenance cost, and improves test
Efficiency.
Other features and advantages of the utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, with following
Detailed description of the invention be used for explaining this utility model together, but be not intended that restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the dynamometer machine vibration monitor system provided according to this utility model；
Fig. 2 is the structural representation of the dynamometer machine vibration monitor system provided according to a kind of embodiment of this utility model；
And
Fig. 3 is the interface schematic diagram according to a kind of embodiment of this utility model.
Description of reference numerals
1 dynamometer machine 3,5 low noise shielded cable
4 vibration transmitters 6 analog quantity receiver modules
7 ethernet communication line 8 man machine interfaces
11 vibration detection device 11a horizontal acceleration sensors
11b axial acceleration sensor 11c vertical acceleration sensors
12 processors
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It should be appreciated that herein
Described detailed description of the invention is merely to illustrate and explains this utility model, is not limited to this utility model.
At present, owing to monitoring the temperature of only bearing for dynamometer machine, therefore, bolt pine is fixed for dynamometer machine
Dynamic, bearing installation question, rotor unbalance, structure are asymmetric, and the problem such as misaligning cannot monitor, and these problems are often led
Cause dynamometer machine damages, and even causes security incident.Utility model people, by practice, utilizes dynamometer machine Vibration Condition to judge measurement of power
Whether machine exists fault, the most above-mentioned fault, to reduce the probability that dynamometer machine damages, it is to avoid security incident.
Fig. 1 is the structural representation of the dynamometer machine vibration monitor system provided according to this utility model.
As it is shown in figure 1, the dynamometer machine vibration monitor system that this utility model provides may include that vibration detection device 11,
The vibration values of detection dynamometer machine；And processor 12, it is connected with described vibration detection device 11, exceedes default in described vibration values
In the case of threshold value, determine that described dynamometer machine breaks down.So can judge whether described dynamometer machine breaks down in time, energy
Enough avoid causing security incident and maintenance cost, and improve testing efficiency.
In order to the vibration of complete detection dynamometer machine is to accurately reflect dynamometer machine fault, can be to dynamometer machine at level, axle
To and the vibration of vertical direction detect, the most described vibration detection device may include that horizontal acceleration sensor, uses
Vibration velocity in the horizontal direction detecting described dynamometer machine；Axial acceleration sensor, for detecting described dynamometer machine
Vibration velocity on axial direction；And vertical acceleration sensors, for detecting shaking in the vertical direction of described dynamometer machine
Dynamic speed.
Owing to the vibration of dynamometer machine is closely bound up with bearing, in order to detect the Vibration Condition of dynamometer machine more accurately, can
So that horizontal acceleration sensor, axial acceleration sensor and vertical acceleration sensors are arranged near bearing.Preferably,
Described horizontal acceleration sensor may be mounted at before described dynamometer machine in the horizontal direction of end bearing block；Described axial acceleration
Sensor may be mounted at before described dynamometer machine on the axial direction of end bearing block；And described vertical acceleration sensors is permissible
It is arranged on before described dynamometer machine in the vertical direction of end bearing block.
Described vibration detection device can also include: vibration transmitters, with described horizontal acceleration sensor, described axially
Acceleration transducer and vertical acceleration sensors connect.So that will from described horizontal acceleration sensor, described axially
The Oscillation Amplitude of acceleration transducer and vertical acceleration sensors is converted into such as current value, in order to processor 12 can be known
Not.
In order to reduce interference suffered during signal transmits, described vibration transmitters can be by low noise shielding electricity
Cable and described horizontal acceleration sensor, described axial acceleration sensor, described vertical acceleration sensors and described place
Reason device connects.
In order to notify operator in time when dynamometer machine breaks down determining, described dynamometer machine vibration monitor system is also
Alarm device can be included, be connected with described processor, report to the police in the case of described vibration values exceedes predetermined threshold value.Institute
State alarm device and can be, but not limited to audible alarm unit, light alarming device.
Operator is it could be visually observed that the state of dynamometer machine for convenience, and described dynamometer machine vibration monitor system also may be used
To include display device, it is connected with described processor.Such as by the vibration values of display device display dynamometer machine, this vibration values pair
The state answered, and vibration trend in dynamometer machine a period of time etc. can be shown.
Wherein, described display device can be connected by ethernet communication line with described processor.
Describe this utility model below with reference to Fig. 2 in detail by detailed description of the invention, it should be noted that this reality
It is not restricted to this with novel.
Fig. 2 is the structural representation of the dynamometer machine vibration monitor system provided according to a kind of embodiment of this utility model.
In this embodiment, be mounted with respectively at the front end bearing block of dynamometer machine 1 horizontal acceleration sensor 11a,
Axial acceleration sensor 11b and vertical acceleration sensors 11c.
Horizontal acceleration sensor 11a, axial acceleration sensor 11b and vertical acceleration sensors 11c are detected
To the horizontal vibration amplitude of dynamometer machine, axial vibration value and vertical vibration amplitude transmitted by the first low noise shielded cable 3
To vibration transmitters 4.Wherein the quantity of the first low noise shielded cable 3 is 3, to be respectively transmitted horizontal vibration amplitude, axial vibration
Value and vertical vibration amplitude.Selected horizontal acceleration sensor 11a, axial acceleration sensor 11b and normal acceleration pass
The frequency response of sensor 11c can be 5～11000Hz, and certainty of measurement can reach 5%.
Received horizontal vibration amplitude, axial vibration value and vertical vibration amplitude are changed into electric current by vibration transmitters 4
Value, in order to processor 12 is capable of identify that.
Afterwards, represent that the current value of horizontal vibration amplitude, axial vibration value and vertical vibration amplitude can pass through the second low noise
Sound shielded cable 5 is transferred into the analog quantity receiver module 6 of processor 12 (such as PLC or comparator).Similarly, the second low noise
The quantity of sound shielded cable 5 is also 3.
Received current value is processed by processor 12, and standard current value is converted into required physical quantity vibration
Speed virtual value, compares vibration velocity virtual value with predetermined threshold value.In the case of exceeding predetermined threshold value, determine measurement of power
Machine 1 breaks down.Report to the police according to failure condition, remind operator to carry out equipment state inspection；And if belonging to urgent
Situation, then can directly take jerk protective measure, to avoid dynamometer machine is caused damage.Such as, when vibration velocity virtual value
When exceeding alarming value 4.5mm/s, word, sound etc. can be carried out and report to the police, abnormal to remind operator's equipment to occur；And when vibration
When speed virtual value exceedes dangerous values 7.1mm/s, directly take jerk protective measure.Certainly this utility model is not restricted to
This, those skilled in the art can arrange corresponding alarming value and dangerous values according to practical situation.
It addition, processor 12 can be connected to man machine interface 8, with by warning Word message, survey by ethernet communication line 7
Merit machine vibration value etc. is sent to man machine interface 8, so that it to present to operator more intuitively.Fig. 3 is according to this utility model
A kind of interface schematic diagram of embodiment.
Since it is desired that the fault of monitoring is usually the low frequency faults such as axle system fault, the vibration that therefore can be obtained by transmitter
The frequency range of speed virtual value is set to 5-1000Hz, and the range ability of vibration velocity virtual value is set to 0～20mm/s, line
Property outputting standard electric current is 4～20mA.
Correspondingly, this utility model also provides for a kind of automotive engine test bench, and described automotive engine test bench includes above-mentioned
Dynamometer machine vibration monitor system.
This utility model provides dynamometer machine vibration monitor system to have automatic alarm and jerk defencive function, can answer widely
Industry is tested, it is possible to the vibrational state of dynamometer machine in automotive engine test bench is monitored in real time for engine production.Base
In the Vibration Condition of the in real time dynamometer machine of monitoring, operator can vibration values under and steady statue identical with periodic logging, carry out
Trend analysis, and set alarm value and dangerous values, when exceeding alarm value, carry out alarm, and when exceeding dangerous values, take straight
Connect stoppage protection equipment safety.Further, for current automotive engine test bench, it is achieved this utility model need not increase and starts
The data collecting card of machine testboard bay, is not take up its data collecting system port.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing, but, this utility model does not limit
Detail in above-mentioned embodiment, in technology concept of the present utility model, can be to skill of the present utility model
Art scheme carries out multiple simple variant, and these simple variant belong to protection domain of the present utility model.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, this utility model is to respectively
Plant possible compound mode to illustrate the most separately.
Additionally, combination in any can also be carried out, as long as it is not disobeyed between various different embodiment of the present utility model
Carrying on the back thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. a dynamometer machine vibration monitor system, it is characterised in that described dynamometer machine vibration monitor system includes:
Vibration detection device, the vibration values of detection dynamometer machine；And
Processor, is connected with described vibration detection device, in the case of described vibration values exceedes predetermined threshold value, determines described survey
Merit machine breaks down；
Wherein, described vibration detection device includes:
Horizontal acceleration sensor, for detecting the vibration velocity in the horizontal direction of described dynamometer machine；
Axial acceleration sensor, for detecting the vibration velocity on the axial direction of described dynamometer machine；And
Vertical acceleration sensors, for detecting the vibration velocity in the vertical direction of described dynamometer machine.
Dynamometer machine vibration monitor system the most according to claim 1, it is characterised in that
Described horizontal acceleration sensor is arranged on before described dynamometer machine in the horizontal direction of end bearing block；
Described axial acceleration sensor is arranged on before described dynamometer machine on the axial direction of end bearing block；And
Described vertical acceleration sensors is arranged on before described dynamometer machine in the vertical direction of end bearing block.
Dynamometer machine vibration monitor system the most according to claim 1, it is characterised in that described vibration detection device also wraps
Include: vibration transmitters, with described horizontal acceleration sensor, described axial acceleration sensor and vertical acceleration sensors even
Connect.
Dynamometer machine vibration monitor system the most according to claim 3, it is characterised in that described vibration transmitters passes through low noise
Sound shielded cable and described horizontal acceleration sensor, described axial acceleration sensor, described vertical acceleration sensors with
And described processor connects.
Dynamometer machine vibration monitor system the most according to claim 1, it is characterised in that described dynamometer machine vibration monitor system
Also include alarm device, be connected with described processor, report to the police in the case of described vibration values exceedes predetermined threshold value.
Dynamometer machine vibration monitor system the most according to claim 1, it is characterised in that described dynamometer machine vibration monitor system
Also include display device, be connected with described processor.
Dynamometer machine vibration monitor system the most according to claim 6, it is characterised in that described display device and described process
Device is connected by ethernet communication line.
Dynamometer machine vibration monitor system the most according to any one of claim 1 to 7, it is characterised in that described processor
For PLC.
9. an automotive engine test bench, it is characterised in that described automotive engine test bench includes any one of claim 1-8
Described dynamometer machine vibration monitor system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421880.4U CN205826309U (en) | 2016-05-11 | 2016-05-11 | Automotive engine test bench and dynamometer machine vibration monitor system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620421880.4U CN205826309U (en) | 2016-05-11 | 2016-05-11 | Automotive engine test bench and dynamometer machine vibration monitor system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205826309U true CN205826309U (en) | 2016-12-21 |
Family
ID=58148719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620421880.4U Expired - Fee Related CN205826309U (en) | 2016-05-11 | 2016-05-11 | Automotive engine test bench and dynamometer machine vibration monitor system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205826309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107168201A (en) * | 2017-05-19 | 2017-09-15 | 昆明理工大学 | A kind of real-time watch device operation management system of threst stand |
| CN108762192A (en) * | 2018-05-04 | 2018-11-06 | 中国神华能源股份有限公司 | The control method and device of the mechanical equipment running status of rotation |
| CN113495584A (en) * | 2020-04-01 | 2021-10-12 | 北京福田康明斯发动机有限公司 | Water yield monitoring control system and hydrogen-air all-in-one machine |
-
2016
- 2016-05-11 CN CN201620421880.4U patent/CN205826309U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107168201A (en) * | 2017-05-19 | 2017-09-15 | 昆明理工大学 | A kind of real-time watch device operation management system of threst stand |
| CN107168201B (en) * | 2017-05-19 | 2019-09-27 | 昆明理工大学 | A kind of real-time watch device operation management system of threst stand |
| CN108762192A (en) * | 2018-05-04 | 2018-11-06 | 中国神华能源股份有限公司 | The control method and device of the mechanical equipment running status of rotation |
| CN113495584A (en) * | 2020-04-01 | 2021-10-12 | 北京福田康明斯发动机有限公司 | Water yield monitoring control system and hydrogen-air all-in-one machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 |