CN206114680U - Fatigue test machine for engineering mechanics - Google Patents
Fatigue test machine for engineering mechanics Download PDFInfo
- Publication number
- CN206114680U CN206114680U CN201621147308.XU CN201621147308U CN206114680U CN 206114680 U CN206114680 U CN 206114680U CN 201621147308 U CN201621147308 U CN 201621147308U CN 206114680 U CN206114680 U CN 206114680U
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- CN
- China
- Prior art keywords
- control
- controlling means
- motion controller
- engineering mechanics
- power driver
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a fatigue test machine for engineering mechanics, including a controlling means, controlling means comprises singlechip, motion control ware, power drive module and sensing module, and the singlechip passes through serial communication module electricity with the PC to be connected, and single chip microcomputer control connects motion control ware and power drive module, motion control ware control connection power drive module, and a power drive module control connection controlling means 3, the sensing module comprises controlling means 4, controlling means 5 and controlling means 6. The utility model discloses an optimize and improve, utilize the characteristics that voice coil motor output is steady, response frequency is high, fast, the precision is high, thrust is big, combine controlling means conveniently to accomplish load control, displacement control and compliance control, conveniently make the fatigue test machine accomplish tired circulation experiment, improved the performance of fatigue test machine.
Description
Technical field
This utility model is related to mechanical experiment equipment, more particularly to a kind of engineering mechanics fatigue experimental machine.
Background technology
Fatigue experimental machine as it is a kind of for determine the stretching under room temperature state of metal and its alloy material, compression or
The equipment for drawing, pressing the experiment on fatigue properties of stress alternation, it has obtained commonly used in Engineering Mechanics Teaching.Existing fatigue
It is tired that testing machine can be divided into low-frequency fatigue test machine, intermediate frequency fatigue machine, HF fatigue testing machine, hyperfrequency according to test frequency
Labor testing machine.Frequency is referred to as low-frequency fatigue test machine less than 30Hz, and 30-100Hz's is referred to as intermediate frequency fatigue machine, 100-
300Hz's becomes HF fatigue testing machine, and more than 300Hz's becomes hyperfrequency fatigue machine.Machinery is generally with fluid pressure type
Low frequency, Motor drive is generally intermediate frequency and low frequency, and electromagnetic resonance is high frequency, and pneumatic type and acoustics formula are hyperfrequency.
Motor drive fatigue experimental machine is directly determined as a kind of conventional fatigue experiment machine equipment, its Motor drive performance
The performance of equipment, but existing be typically only capable to carry out tensile, compressive, bending, cut by the fatigue experimental machine for driving output of motor
Deng unidirectional experiment, it is impossible to carry out fatigue and cyclic experiment, the dynamic response of motor does not catch up with the change of output control variable, cause general
Logical direct current generator cannot realize aforesaid operations, it is impossible to meet the high performance requirements of fatigue experimental machine.
Utility model content
This utility model solves above-mentioned deficiency, there is provided a kind of engineering mechanics fatigue experimental machine, with multichannel control
Mode processed, improves the performance of equipment.
The technical problem that this utility model is solved can employ the following technical solutions to realize：
A kind of engineering mechanics fatigue experimental machine, including a control device, the control device is by single-chip microcomputer, motor control
Device, power driver module and sensing module are constituted, and the single-chip microcomputer is electrically connected with PC by serial communication modular, the monolithic
The machine control connection motion controller and power driver module, the motion controller control connects the power drive mould
Block, power driver module control one voice coil motor of connection, the sensing module is by photoelectric encoder, load transducer and electricity
Eddy current sensor is constituted, and the photoelectric encoder outfan electrically connects the motion controller, the load transducer and electric whirlpool
Flow sensor is by AD interfaces and the monolithic mechatronics.
The single-chip microcomputer adopts C8051F020 chips.
The motion controller adopts LM629 chips.
The power driver module adopts LMD18200 chips.
This utility model is by having the advantages that compared with prior art：This utility model passes through Optimal improvements,
The characteristics of exporting steady, response frequency height, fast speed, high precision, big thrust using voice coil motor, has facilitated with reference to control device
Into load control, Bit andits control and strain controlling, conveniently make fatigue experimental machine complete fatigue and cyclic experiment, improve fatigue experiment
The performance of machine.
The characteristics of this utility model, see the detailed description of this case schema and following preferable embodiment and obtain clear
Ground understands.
Description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is serial communication modular circuit diagram of the present utility model.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that this utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and this utility model is expanded on further.
As shown in Figure 1 to Figure 2, a kind of engineering mechanics fatigue experimental machine that this utility model is provided, including a control dress
Put, control device is made up of single-chip microcomputer 3, motion controller 4, power driver module 5 and sensing module 7, and single-chip microcomputer 3 is adopted
C8051F020 chips, motion controller 4 adopts LM629 chips, power driver module 5 to adopt LMD18200 chips, single-chip microcomputer 3
Electrically connected by serial communication modular 2 with PC 1, MAX3232 chips, the control connection of single-chip microcomputer 3 are adopted in serial communication modular 2
Motion controller 4 and power driver module 5, single-chip microcomputer 1 is connected by I/O interfaces with the communication of motion controller 4, motion controller
4 control connection power driver modules 5, control one voice coil motor 6 of connection of power driver module 5, sensing module 7 is by photoelectric encoder
72nd, load transducer 73 and current vortex sensor 71 are constituted, the outfan of photoelectric encoder 72 electrical connection motion controller 4, load
Sensor 73 and current vortex sensor 71 are electrically connected by AD interfaces with single-chip microcomputer 3.
According to said structure, operation principle of the present utility model is：Single-chip microcomputer 3 is the maincenter of whole control device, is real
Existing displacement closed loop, power closed loop close the core component of strain controlling.When needing to realize displacement closed loop, PID controls are set by single-chip microcomputer 3
Parameter processed and kinematic parameter, are communicated by data transfer I/O interface with motion controller 4, while motion controller 4 can be with
The displacement signal that photoelectric encoder 72 is obtained is directly received, while according to the parameter formation speed figure of the transmission of single-chip microcomputer 3, it is right to carry out
The position tracking of testpieces 8, while by PID control and generating displacement closed loop control of the pwm signal transmission realization to voice coil motor 6
System；When needing to realize power closed loop control, single-chip microcomputer 3 completes the electrical signal collection to load transducer 73 by AD interfaces, obtains
Load signal, using PID controller control PWM waveform is produced, for entering to voice coil motor 6 after power driver module amplifies
Row control；When needing to test strain controlling, single-chip microcomputer 3 completes to adopt the signal of telecommunication of current vortex sensor 71 by AD interfaces
Collection, obtains strain feedback signal, while producing PWM waveform using PID controller control, uses after power driver module amplifies
In being controlled to voice coil motor 6；The communication of single-chip microcomputer 3 and PC 1 is conveniently realized in combination with serial communication modular 2, so as to
PC 1 can be utilized to complete the input for instructing, the setting of parameter, the collection of data, process, storage and monitoring etc..
This utility model by Optimal improvements, using voice coil motor 6 export steadily, response frequency is high, speed soon, precision
It is high, the characteristics of thrust is big, with reference to control device load control, Bit andits control and strain controlling are conveniently completed, conveniently make tired real
The machine of testing completes fatigue and cyclic experiment, improves the performance of fatigue experimental machine.
As known by the technical knowledge, this utility model can be by other essence without departing from its spirit or the reality of essential feature
Apply scheme to realize.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only
's.It is all in the range of this utility model or in the change being equal in the range of this utility model by this utility model bag
Contain.
Claims (4)
1. a kind of engineering mechanics fatigue experimental machine, an including control device, it is characterised in that：The control device is by monolithic
Machine, motion controller, power driver module and sensing module are constituted, and the single-chip microcomputer is electrically connected with PC by serial communication modular
Connect, the Single-chip Controlling connects the motion controller and power driver module, the motion controller control connection is described
Power driver module, power driver module control one voice coil motor of connection, the sensing module is by photoelectric encoder, load
Sensor and current vortex sensor are constituted, and the photoelectric encoder outfan electrically connects the motion controller, and the load is passed
Sensor and current vortex sensor are by AD interfaces and the monolithic mechatronics.
2. a kind of engineering mechanics fatigue experimental machine according to claim 1, it is characterised in that：The single-chip microcomputer is adopted
C8051F020 chips.
3. a kind of engineering mechanics fatigue experimental machine according to claim 1, it is characterised in that：The motion controller is adopted
Use LM629 chips.
4. a kind of engineering mechanics fatigue experimental machine according to claim 1, it is characterised in that：The power driver module
Using LMD18200 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621147308.XU CN206114680U (en) | 2016-10-24 | 2016-10-24 | Fatigue test machine for engineering mechanics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621147308.XU CN206114680U (en) | 2016-10-24 | 2016-10-24 | Fatigue test machine for engineering mechanics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206114680U true CN206114680U (en) | 2017-04-19 |
Family
ID=58527781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621147308.XU Expired - Fee Related CN206114680U (en) | 2016-10-24 | 2016-10-24 | Fatigue test machine for engineering mechanics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206114680U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490061A (en) * | 2018-03-29 | 2019-03-19 | 中国科学院金属研究所 | The device and test method of environment fatigue experiment are carried out under a kind of waveform control condition |
| CN111999062A (en) * | 2020-09-24 | 2020-11-27 | 中国民用航空飞行学院 | Load spectrum loaded joint bearing damage assessment test device |
-
2016
- 2016-10-24 CN CN201621147308.XU patent/CN206114680U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490061A (en) * | 2018-03-29 | 2019-03-19 | 中国科学院金属研究所 | The device and test method of environment fatigue experiment are carried out under a kind of waveform control condition |
| CN111999062A (en) * | 2020-09-24 | 2020-11-27 | 中国民用航空飞行学院 | Load spectrum loaded joint bearing damage assessment test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170419 Termination date: 20171024 |