CN207866401U - Self-power wireless measuring device for measuring engine link stress - Google Patents
Self-power wireless measuring device for measuring engine link stress Download PDFInfo
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- CN207866401U CN207866401U CN201820081768.XU CN201820081768U CN207866401U CN 207866401 U CN207866401 U CN 207866401U CN 201820081768 U CN201820081768 U CN 201820081768U CN 207866401 U CN207866401 U CN 207866401U
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Abstract
The utility model is related to plant the self-power wireless measuring device for measuring engine link stress comprising：Signal acquisition and transmitting module, are installed in move back and forth with it on engine link, and are arranged for acquisition with the relevant signal of engine link stress and wirelessly export it outward；Signal transmission module is arranged for receiving the signal, and by the signal transmission to processing unit to be processed into engine link stress numerical；Power module is configured to provide electric energy to the signal acquisition and transmitting module and the signal transmission module in a manner of self-powered.The utility model has many advantages, such as simple design structure, sensitivity and fast response time, high certainty of measurement, small signal noise and drift.
Description
Technical field
The utility model is related to field of measuring technique more particularly to a kind of self-powereds for measuring engine link stress
Wireless measurement device.
Background technology
Currently, as regulation and ecological requirements are higher and higher for the technology requirement of automobile, before meeting power demand
It puts, automobile fuel consumption is increasingly paid close attention to by user, and the performance of the tribological property of engine is then the main of influence oil consumption
One of aspect, it is therefore desirable to be paid close attention to.Measuring technique for piston-engine link-crankshaft system is low friction
The basis of technological development, it is therefore desirable to it is carried out deeper into research could meet engine technology exploitation needs.
In the prior art, when using wired measuring mode, under engine behavior, engine link is with bent axle
It is constantly in high-speed motion, it is necessary to it designs special auxiliary device and draws conducting wire, however conducting wire is easy to happen and loses, to
Measuring system is caused to fail.Although existing solved the above problems using wireless measurement mode, these existing wireless surveys
Amount system remains some defects and shortcoming.For example, these wireless measuring systems are needed while being solved for example
The problems such as measure signal transmission quality is bad, module for power supply is undesirable, wherein especially power supply is a difficult point, if using charging
Battery is powered, it is necessary to periodic charge and cannot be guaranteed persistently to measure operation, and there is power off risk and nothing
Method measures, therefore cannot be satisfied the needs of practical engineering application.So it is necessary to for including that these above-mentioned situations exist
Interior existing issue or drawback is fully studied, to be improved.
Utility model content
In view of this, the utility model provides the self-power wireless measuring device for measuring engine link stress,
To efficiently solve the problems, such as the above-mentioned problems in the prior art and one or more of otherwise.
Technical solution according to the present utility model, it provide it is a kind of for measure the self-powered of engine link stress without
Line measuring device, the self-power wireless measuring device include：
Signal acquisition and transmitting module, are installed in move back and forth with it on engine link, and are configured to
For acquiring with the relevant signal of engine link stress and wirelessly exporting it outward；
Signal transmission module, is arranged for receiving the signal, and by the signal transmission to processing unit with
It is processed into engine link stress numerical；And
Power module is arranged for providing to the signal acquisition and transmitting module and the signal transmission module
Electric energy.
In above-mentioned self-power wireless measuring device, optionally, the signal acquisition and transmitting module include：
One or more foil gauges, are arranged on engine link, for acquiring the signal；
Signal processing unit, input port are connected with the output port of the foil gauge, are used for the signal processing
At digital signal；And
Wireless transmission control module, input port are connected with the output port of the signal processing unit, for nothing
Line mode exports the digital signal outward.
In above-mentioned self-power wireless measuring device, optionally, the signal processing unit includes A/D converter,
It is used for the signal conversion processes into the digital signal, and the output port of the A/D converter and the nothing
The input port of line emission control module is connected.
In above-mentioned self-power wireless measuring device, optionally, the foil gauge is configured to strain bridge.
In above-mentioned self-power wireless measuring device, optionally, the strain bridge is arranged on engine link
On both sides of the middle.
In above-mentioned self-power wireless measuring device, optionally, the signal transmission module includes：
Reception antenna is arranged for receiving the signal；And
Wireless receiving control unit is connected with the reception antenna, for receiving the signal and transmitting it to institute
State processing unit.
In above-mentioned self-power wireless measuring device, optionally, a part for the reception antenna, which is arranged on, starts
On the inboard wall of cylinder block of machine cylinder.
In above-mentioned self-power wireless measuring device, optionally, the power module includes being installed in the engine
Magnet exciting coil on connecting rod and the magnet being installed on bent axle, the magnet exciting coil and the magnet pass through the engine
Relative motion between connecting rod and the bent axle produces electricl energy.
In above-mentioned self-power wireless measuring device, optionally, the magnet exciting coil is installed in the engine and connects
The stub end of bar.
In above-mentioned self-power wireless measuring device, optionally, the processing unit is computer.
Effective biography of engine link stress data can be realized using the self-power wireless measuring device of the utility model
It is defeated, to solve the problems such as signal transmission quality in the presence of existing wired or wireless measurement method is bad, and due to
Power module uses self-powered mode, therefore can be that signal acquisition and transmitting module, signal transmission module continue reliably
Electric energy is provided, thereby ensures that the lasting uninterrupted power supply during engine link stress measurement operation.The utility model has
Design structure is simple, sensitivity and many advantages, such as fast response time, high certainty of measurement, small signal noise and drift.
Description of the drawings
The technical solution of the utility model is described in further detail below with reference to drawings and examples, still
It should be known that these attached drawings only design for task of explanation, therefore not as the restriction of the scope of the utility model.In addition,
Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale
It draws.
Fig. 1 is that a self-power wireless measuring device embodiment according to the present utility model is attached to piston-engine
Structural schematic diagram in rod-crankshaft system.
Specific implementation mode
Firstly, it is necessary to which explanation, illustrates starting for measuring for the utility model by by way of example below
Structure composition, the features and advantages of self-power wireless measuring device etc. of machine connecting rod stress, however all descriptions are intended merely to
It illustrates, any limitation is formed to the utility model without them should be interpreted as.
In addition, for the arbitrary single technical characteristic for being described by or implying in the embodiment mentioned by this paper, or
Shown or implicit arbitrary single technical characteristic in the drawings, the utility model still allow for these technical characteristics (or
Its equivalent) between continue arbitrary combination or delete, may not this practicality that directly refer to herein to obtain
Novel more other embodiments.In addition, for the sake of simplifying drawing, same or like parts and feature are same attached
It may be only at one or several places are indicated in figure.
Referring to FIG. 1, schematically showing a self-power wireless according to the present utility model in this attached drawing
The basic structure of measuring device embodiment forms situation.In this embodiment, which includes signal
Acquisition and transmitting module 1, signal transmission module 2 and power module, below just this is described in detail.
Firstly, for signal acquisition and transmitting module 1, it can be installed on engine link 6, due to the engine
Connecting rod 6 will move back and forth in the case where coupled piston 9 drives, and allow for 1 energy of the signal acquisition and transmitting module in this way
It is enough as engine link 6 moves back and forth together, so as to be collected in the reciprocatory movement and engine connects
Then the relevant signal of stress in the bar can use wireless mode to export the collected signal of institute outward.
It is illustrative only, above-mentioned signal acquisition and transmitting module 1 can be arranged to answer with one or more
Become piece, signal processing unit and wireless transmission control module.Specifically, one or more foil gauges can be arranged and is starting
Be used for acquiring on machine connecting rod 6 with the relevant signal of engine link stress, such as these foil gauges can be optionally disposed to
Such strain bridge can be arranged in the on both sides of the middle of engine link 6 by strain bridge, to ensure measuring signal standard
Really, sensitive and reliable.For signal processing unit, its input port, output port be respectively with above-mentioned foil gauge
Output port, wireless transmission control module input port be connected, so as to for by measured signal processing at number believe
It is wirelessly exported outward via wireless transmission control module after number.As described above, in the present invention can
Selection of land is transmitted using digital signal, can so better ensure that signal quality, avoid or reduce signal be interfered,
Sensitivity and response speed are improved, and at the same time being conducive to carry out subsequent analysis processing for these digital signals, this can example
Such as using A/D converter by by foil gauge signal acquisition to signal conversion processes at digital signal, and by the analog/digital
The output port of converter is connected with the input port of wireless transmission control module, will pass through analog/digital conversion will pass through the latter
Digital signal that treated wirelessly outside output digit signals.
In addition, for signal transmission module 2, it is configured to for receiving via the signal acquisition and transmitting module 1
Export outward with the relevant above-mentioned signal of engine link stress, then transmit the signal to processing unit 10 again, so as to
By the latter by the signal processing at engine link stress numerical, to for under such as engine ignition state
Engine link stressing conditions are researched and analysed.It is understood that above-mentioned processing unit 10 includes but not limited to calculate
Any suitable calculating device such as machine, device or equipment.
As shown in Figure 1, in the self-power wireless measuring device embodiment, signal transmission module 2 is illustratively arranged
There are antenna 3 and wireless receiving control unit 3.Wherein, which is for receiving through signal acquisition and transmitting module 1 with nothing
Then the above-mentioned signal that line mode exports outward receives the signal via the wireless receiving control unit 3 being connected with the antenna 3 again
And it is transmitted to processing unit 10 and is handled.In alternative circumstances, a part for above-mentioned reception antenna 3 can be arranged
On 8 inner wall of cylinder body of engine cylinder, thus adjacent in the signal acquisition and transmitting mould that are installed on engine link 6
Block 1 so as to effectively improve signal sensitivity and response speed, while reducing signal noise and drift, therefore helps to carry
Rise measurement accuracy.
It also illustrates schematically and is used for signal acquisition and transmitting in this self-power wireless measuring device in Fig. 1
Module 1 and signal transmission module 2 provide the power module of electric energy.In this illustration, which is configured to have and encourage
They can be arranged on engine link 6 and bent axle 7, so as to by means of engine link 6 by magnetic coil 4 and magnet 5
Relative motion between bent axle 7 is produced electricl energy by magnet exciting coil 4 and magnet 5, so as to being continuously to measure
Operation provides electric energy, this is that existing measurement method does not have completely.It in alternative circumstances, can be by above-mentioned excitation wire
Circle 4 is arranged in the stub end of engine link 6, naturally it is also possible to is arranged in the magnet exciting coil 4 according to practical situations
Other suitable locations on engine link 6.In addition it should be pointed out that above only exemplarily illustrate by way of example
The power module using self-powered mode in the utility model, the power module can also use others for example be utilized
The devices such as piezoelectric effect or device are realized, can equally realize that power module continues muchly self-powered function.
Using the self-power wireless measuring device of the utility model come during carrying out engine link stress measurement, can
With the angle data of gas pressure data and bent axle in engine cylinder in experimentation under synchronous recording, then by institute
The period of change of the above-mentioned gas pressure data and engine link stress data that measure is identified, and makes them and measure
The engine rotational speed signal arrived keeps corresponding and synchronizes, to keep the accuracy and reliability of engine link stress measurement.This
Outside, the Surveying Actual Precision and stability of self-power wireless measuring device can also be verified by carrying out igniting bench test.
Only be elaborated by way of example above it is according to the present utility model for measure engine link stress from
Powered, wireless measuring device, this few example is only for illustrating that the principles of the present invention and embodiments thereof are used, rather than to this reality
With novel limitation, in the case where not departing from the spirit and scope of the utility model, those skilled in the art can also make
Various modifications and improvement.Therefore, all equivalent technical solutions should all belong to the scope of the utility model and be the utility model
Every claim limited.
Claims (10)
1. a kind of for measuring the self-power wireless measuring device of engine link stress, which is characterized in that the self-powered without
Line measuring device includes：
Signal acquisition and transmitting module, are installed in move back and forth with it on engine link, and are arranged for
Acquisition wirelessly exports outward with the relevant signal of engine link stress and by it；
Signal transmission module, is arranged for receiving the signal, and by the signal transmission to processing unit with by its
It is processed into engine link stress numerical；And
Power module is configured in a manner of self-powered to the signal acquisition and transmitting module and the signal transmission module
Electric energy is provided.
2. self-power wireless measuring device according to claim 1, wherein the signal acquisition and transmitting module include：
One or more foil gauges, are arranged on engine link, for acquiring the signal；
Signal processing unit, input port are connected with the output port of the foil gauge, are used for the signal processing into number
Word signal；And
Wireless transmission control module, input port are connected with the output port of the signal processing unit, for wireless parties
Formula exports the digital signal outward.
3. self-power wireless measuring device according to claim 2, wherein the signal processing unit includes that analog/digital turns
Parallel operation is used for the signal conversion processes into the digital signal, and the output port of the A/D converter and institute
The input port for stating wireless transmission control module is connected.
4. self-power wireless measuring device according to claim 2, wherein the foil gauge is configured to strain bridge.
5. self-power wireless measuring device according to claim 4, wherein the strain bridge is arranged on engine company
The on both sides of the middle of bar.
6. self-power wireless measuring device according to claim 1, wherein the signal transmission module includes：
Reception antenna is arranged for receiving the signal；And
Wireless receiving control unit is connected with the reception antenna, for receiving the signal and transmitting it to the place
Manage device.
7. self-power wireless measuring device according to claim 6, wherein a part for the reception antenna is arranged on
On the inboard wall of cylinder block of engine cylinder.
8. the self-power wireless measuring device according to any one of claim 1-7, wherein the power module includes dress
The magnet exciting coil being located on the engine link and the magnet being installed on bent axle, the magnet exciting coil and the magnet
It is produced electricl energy by the relative motion between the engine link and the bent axle.
9. self-power wireless measuring device according to claim 8, wherein the magnet exciting coil is installed in described start
The stub end of machine connecting rod.
10. the self-power wireless measuring device according to any one of claim 1-7, wherein the processing unit is meter
Calculation machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820081768.XU CN207866401U (en) | 2018-01-18 | 2018-01-18 | Self-power wireless measuring device for measuring engine link stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820081768.XU CN207866401U (en) | 2018-01-18 | 2018-01-18 | Self-power wireless measuring device for measuring engine link stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866401U true CN207866401U (en) | 2018-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820081768.XU Active CN207866401U (en) | 2018-01-18 | 2018-01-18 | Self-power wireless measuring device for measuring engine link stress |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724862A (en) * | 2018-11-30 | 2019-05-07 | 中国船舶重工集团公司第七一一研究所 | Connecting rod stress test system and control method based on UWB |
| CN113686561A (en) * | 2021-08-20 | 2021-11-23 | 上海交通大学 | Signal synchronous acquisition system for wireless measurement of friction force of piston group |
-
2018
- 2018-01-18 CN CN201820081768.XU patent/CN207866401U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724862A (en) * | 2018-11-30 | 2019-05-07 | 中国船舶重工集团公司第七一一研究所 | Connecting rod stress test system and control method based on UWB |
| CN113686561A (en) * | 2021-08-20 | 2021-11-23 | 上海交通大学 | Signal synchronous acquisition system for wireless measurement of friction force of piston group |
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