CN209707598U - Three-dimensional loads contact resistance test device under a kind of controllable temperature - Google Patents
Three-dimensional loads contact resistance test device under a kind of controllable temperature Download PDFInfo
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- CN209707598U CN209707598U CN201920254826.9U CN201920254826U CN209707598U CN 209707598 U CN209707598 U CN 209707598U CN 201920254826 U CN201920254826 U CN 201920254826U CN 209707598 U CN209707598 U CN 209707598U
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- cabinet
- test
- charging assembly
- sample
- temperature
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Abstract
The utility model discloses three-dimensionals under a kind of controllable temperature to load contact resistance test device, test cabinet on installation X to, Y-direction, Z-direction charging assembly, temperature sensor is set on test cabinet, vacuum pump adapter and tee tube, two ports of tee tube are separately connected liquid nitrogen container and hot inert gas heating device by two solenoid valves, charging assembly includes servo motor, compression bar and force snesor, force snesor is fixed in compression bar outer end, Serve Motor Control compression bar is mobile, force snesor acts on three surfaces of test cabinet middle and upper part sample, two stack sample connecting test conducting wire, test lead is connect with volometer；Force snesor is connect by signal transmssion line with control system；Temperature sensor, solenoid valve and servo motor are connect with control system.The utility model, to sample on-load pressure, the temperature of test environment is adjusted by low temperature liquid nitrogen or hot inert gas, realizes the test of material resistance under different temperatures and triaxial pressure in tri- directions X, Y, Z.
Description
Technical field
The utility model belongs to three-dimensional under metal material contact resistance the field of test technology more particularly to a kind of controllable temperature
Load contact resistance test device.
Background technique
Applied in the electrical connection material in the fields such as aerospace, rail traffic, ocean engineering and the resistance of metal material
Weldering, because use environment is exceedingly odious, causes power-electrical property of material surface contact to be seriously affected by extreme ambient temperature,
Therefore also more harsh to the material performance requirement of these fields application.Since metal material will receive the coupling of temperature, pressure etc.
Corresponding variation occurs for cooperation use, the contact resistance of material, and is more than material when acting on the load such as temperature, the pressure of material
When strength degree, material will suffer from destroying.In order to filter out the electrical connection material that can be used for extreme environment, it is ensured that selected
Electrical connection material can normally make in the extreme environments such as superhigh temperature-ultralow temperature wide temperature range, abrasion, pressure and corrosion
With, while guaranteeing the welding quality of metal material resistance weldering, power-electrical property research between material contacting surface under the influence of progress temperature
With particularly important meaning.Currently, only carrying out test material in the pressure that room temperature or liquid nitrogen temperature apply single direction to material
Contact resistance between surface, and for the contact resistance between material surface under temperature change and multidirectional pressure, there is no corresponding
Test device.Therefore, contact resistance of the test material under different temperatures and multidirectional pressure has the application of material important
Directive function.
In conclusion only may be implemented in room temperature or liquid nitrogen temperature environment in existing experimental instruments to material
The pressure of material load single direction, and not can be implemented simultaneously the survey of material resistance under multidirectional pressure in different temperatures environment
Examination, not can determine that whether material can be applied in extreme environment, and the electric resistance welding for limiting electrical connection material and metal material exists
The application in certain fields.
Utility model content
For deficiency present in above-mentioned background technique, the utility model provides three-dimensional load under a kind of controllable temperature and connects
Touch resistance testing device.
The utility model is realized in this way three-dimensional loads contact resistance test device, packet under a kind of controllable temperature
Test cabinet, charging assembly, temperature sensor are included, the charging assembly includes that X adds to charging assembly, Y-direction charging assembly, Z-direction
Component is carried, the charging assembly includes servo motor, compression bar, force snesor, and the fixed force snesor in the outer end of the compression bar is described
The movement of Serve Motor Control compression bar, the X are respectively arranged in test to charging assembly, Y-direction charging assembly, Z-direction charging assembly
The X axis of cabinet, Y-axis, Z axis are to the compression bar and force snesor are placed in test cabinet, and the test cabinet indsole portion consolidates
Determine sample table, stack the first sample and the second sample on sample table from the bottom to top, the X to charging assembly, Y-direction charging assembly and
The force snesor of Z-direction charging assembly is respectively acting on three surfaces of the second sample, divides on first sample and the second sample
Other connecting test conducting wire, the test lead are pierced by by the first wire guide on test cabinet and are connected with voltmeter and ammeter
It connects；The force snesor is connected with signal transmssion line, signal transmssion line be pierced by by the second wire guide on test cabinet after with
Control system connection；Tee tube is set on the test cabinet, and one end of the tee tube is placed in test cabinet, tee tube
In addition it is respectively solenoid valve interface one and solenoid valve interface two that both ends are placed in test box in vitro, and the solenoid valve interface one passes through electricity
Magnet valve is connect with liquid nitrogen container, and the solenoid valve interface two is connect by solenoid valve with the venthole of hot inert gas heating device；
In the detecting head insertion test cabinet of the temperature sensor, the vacuum pump that the test cabinet is equipped with connection vacuum pump is connect
Head, the temperature sensor, electromagnetic valve, servomotor and vacuum pump are connect with control system.
Preferably, the charging assembly further includes the first cabinet and the second cabinet, and the servo motor is installed on the first case
On body, first cabinet and the second cabinet are connected by bearing cap, the fixed force snesor in the outer end of the compression bar, the compression bar
Inner end protrude into the second cabinet and be threaded spiral plate, the thread spindle that is arranged in the spiral plate and the second cabinet connection
It connects, the input terminal of the thread spindle, which protrudes into the first cabinet, to be coupled by flat key and connector sleeve with the output shaft of servo motor, institute
The second cabinet is stated to be fixedly installed on test cabinet.
Preferably, the spiral plate is coupled with thread spindle by trapezoidal thread.
Preferably, mat insulation is set between second cabinet and test cabinet.
Preferably, the sample table is equipped with the convex block that the first sample of limitation moves horizontally.
Preferably, insulating layer is set on the inner wall of the test cabinet.
Preferably, the test cabinet is made of upper plate, bottom plate and side plate, at the docking of the upper plate, bottom plate and side plate
Gasket is set.
Compared with the prior art the shortcomings that and deficiency, the utility model has the following beneficial effects: the utility model X,
Y, pressure-loaded component is arranged in tri- directions Z, carries out on-load pressure to three different directions of sample respectively；It is by tee tube
The flow of test cabinet offer low temperature liquid nitrogen or hot inert gas, liquid nitrogen or hot inert gas passes through the electromagnetism being separately connected therewith
Valve control, the temperature of hot inert gas are controlled by hot inert gas heating device, test temperature and charging assembly in cabinet
The pressure for being applied to sample is controlled to adjust by control system, Re-power multi- scenarios method environment is provided for test button, to realize
The test of material resistance under different temperatures and triaxial pressure.
Detailed description of the invention
Fig. 1 is the master of three-dimensional load contact resistance test device under a kind of controllable temperature provided by the embodiment of the utility model
View.
Fig. 2 is that three-dimensional loads bowing for contact resistance test device under a kind of controllable temperature provided by the embodiment of the utility model
View.
Fig. 3 is a left side for three-dimensional load contact resistance test device under a kind of controllable temperature provided by the embodiment of the utility model
View.
Fig. 4 is the outer end-view of charging assembly provided by the embodiment of the utility model.
Fig. 5 is the interior end-view of charging assembly provided by the embodiment of the utility model.
Fig. 6 is the fragmentary cross-sectional view in Fig. 5 at A-A.
Fig. 7 is the fragmentary cross-sectional view in Fig. 5 at B-B.
Fig. 8 is that three-dimensional loads contact resistance test device main view under a kind of controllable temperature provided by the embodiment of the utility model
The internal structure chart in direction.
Fig. 9 is that three-dimensional load contact resistance test device is overlooked under a kind of controllable temperature provided by the embodiment of the utility model
The internal structure chart in direction.
In figure: 1- tests cabinet；2-X is to charging assembly；3-Y is to charging assembly；4-Z is to charging assembly；5- vacuum pump connects
Head；6- temperature sensor；7- tee tube；7-1- solenoid valve interface one；7-2- solenoid valve interface two；8- servo motor；9- first
Cabinet；The second cabinet of 10-；11- bearing cap；12- thread spindle；13- trapezoidal thread；14- spiral plate；15- compression bar；16- power sensing
Device；17- mat insulation；18- connector sleeve；19- flat key；20- axle sleeve；21- screw；22- gasket；The first wire guide of 23-；24- second
Wire guide；25- sample table；26- convex block；The first sample of 27-；The second sample of 28-；29- insulating layer；30- gasket.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
- Fig. 3 referring to Fig.1, three-dimensional loads contact resistance test device under a kind of controllable temperature, including test cabinet 1, X to
Charging assembly 2, Y-direction charging assembly 3, Z-direction charging assembly 4, temperature sensor 6, tee tube 7, X are loaded to charging assembly 2, Y-direction
Component 3, Z-direction charging assembly 4 are respectively arranged in the test X axis of cabinet 1, Y-axis, Z axis to the detecting head of temperature sensor 6
In insertion test cabinet 1, one end of tee tube 7 is placed in test cabinet 1, and the other both ends of tee tube 7 are placed in outside test cabinet 1
Respectively two 7-2 of one 7-1 of solenoid valve interface and solenoid valve interface, one 7-1 of solenoid valve interface are connect by solenoid valve with liquid nitrogen container,
Two 7-2 of solenoid valve interface is connect by solenoid valve with the venthole of hot inert gas heating device, liquid nitrogen or hot inert gas
Flow passes through the solenoid valve control being separately connected therewith, and the temperature of hot inert gas is controlled by hot inert gas heating device.
Test vacuum pump adapter 5, the first wire guide 23 and the second wire guide 24 of setting connection vacuum pump on cabinet 1.
X is identical with the structure of Z-direction charging assembly 4 to charging assembly 2, Y-direction charging assembly 3, outer end-view such as Fig. 4 institute
Show, interior end-view as shown in figure 5, structure chart as shown in fig. 6-7, include servo motor 8, compression bar 15, force snesor 16,
The fixed force snesor 16 in the outer end of compression bar 15, can be used screw 21 and gasket 22 is fixed, in order to keep servo motor 8 better
The movement of compression bar 15 is controlled, the structure of charging assembly can specifically design as follows: charging assembly also sets up the first cabinet 9 and the second case
Body 10, servo motor 8 are installed on the first cabinet 9, and the first cabinet 9 and the second cabinet 10 are connected by bearing cap 11, servo electricity
Installation can be fixed by screw 21 and gasket 22 between machine 8, the first cabinet 9 and the second cabinet 10；It stretches the inner end of compression bar 15
Enter in the second cabinet 10 and be threaded spiral plate 14, the thread spindle 12 being arranged in spiral plate 14 and the second cabinet 10
It connects, spiral plate 14 is coupled with thread spindle 12 by trapezoidal thread 13, and one end of thread spindle 12 is installed on the second cabinet by bearing
On 10 side wall, the other end of thread spindle 12 is protruded into the first cabinet 9 through the defeated of flat key 19 and connector sleeve 18 and servo motor 8
Shaft connection, thread spindle 12 and 11 junction of bearing cap are equipped with axle sleeve 20 and are installed on bearing cap 11, the second cabinet by bearing
10 are fixedly installed on test cabinet 1, and screw 21 can also be used in mounting means and gasket 22 is realized, to ensure charging assembly and survey
Mat insulation 17 is arranged between the second cabinet 10 and test cabinet 1 in the thermal insulation for trying the junction of cabinet 1.
After charging assembly is installed on test cabinet 1, compression bar 15 and force snesor 16 are placed in test cabinet 1, test box
Sample table 25 is fixed in bottom in body 1, and the fixation of sample table 25 can be used the mode of screw 21 and gasket 22, on sample table 25 under
Supreme to stack the first sample 27 and the second sample 28, X is to charging assembly, the force snesor of Y-direction charging assembly and Z-direction charging assembly
Be respectively acting on X axis, Y-axis and the Z axis of the second sample 28 to three surfaces, three not Tongfangs are applied to the second sample 28
To pressure, since the second sample 28 and the first sample 27 contact, after the second sample 28 is by horizontal pressure force, to prevent first
Horizontal displacement occurs for sample 27, the convex block 26 that the first sample 27 of setting limitation moves horizontally on sample table 25.
It is separately connected test lead on first sample 27 and the second sample 28, which passes through again on test cabinet 1
The first wire guide 23 be pierced by test and cabinet 1 and connect with voltmeter and ammeter, the test of contact resistance is using four-wire method survey
Amount；16 connection signal transmission line of force snesor, signal transmssion line are pierced by test box by the second wire guide 24 on test cabinet 1
It is connect after body 1 with control system；Control system also with temperature sensor 6, servo motor 8, vacuum pump, connect solenoid valve interface one
7-1 is connected with the solenoid valve of two 7-2 of solenoid valve interface.
For the influence for being further reduced temperature in outer bound pair test box body 1, insulating layer is set on the inner wall of test cabinet 1
29。
In order to facilitate X to charging assembly, the replacement of the installation of Y-direction charging assembly and Z-direction charging assembly and its each component, survey
Examination cabinet 1 is designed as dismountable structure, and test cabinet 1 is made of upper plate, bottom plate and 4 side plates, passes through screw between each plate
It is fixedly connected, gasket 30 is set at the docking of upper plate, bottom plate and side plate.
The working principle of the utility model is as follows:
By control system set temperature and pressure, actual temperature in 6 probing test cabinet 1 of temperature sensor simultaneously should
Data are transferred to control system, for set temperature be higher than room temperature the case where, device when operation starts, vacuum pump startup, to survey
Examination cabinet 1 is evacuated, while control system controls the electromagnetic valve work connecting with hot inert gas heating device venthole, is led to
The flow that the solenoid valve control hot inert gas flows into test cabinet 1 is crossed, the temperature tested in cabinet 1 is gradually risen, works as temperature
When the temperature spent in the test cabinet 1 that sensor 6 measures is higher than set temperature, control system control and two 7-2 of solenoid valve interface
The solenoid valve of connection is closed, and hot inert gas stops flow into test cabinet 1, and vacuum pump continues to be vented, and makes the temperature tested in cabinet 1
Degree is reduced to set temperature value, and then vacuum pump is closed, and test cabinet 1 is in keeping warm mode.In insulating process, if temperature sensing
When the temperature that device 6 measures is lower than set temperature, then it is again turned on two 7-2 of the solenoid valve interface solenoid valve connecting, to test box
Body 1 supplements hot inert gas, elevates the temperature, to reach set temperature.The case where room temperature is lower than for set temperature, device fortune
When row starts, control system control is opened with the tank connected solenoid valve of liquid nitrogen, which flows into test box body 1
Flow makes to test temperature decline in cabinet 1, when the temperature in the test cabinet 1 that temperature sensor 6 measures is lower than set temperature
When, the solenoid valve that control system control is connect with one 7-1 of solenoid valve interface is closed, while opening vacuum pump, in test cabinet 1
Cryogenic gas be evacuated, make test cabinet 1 in temperature be increased to set temperature, then vacuum pump close, test cabinet 1
In keeping warm mode.In insulating process, if the temperature that temperature sensor 6 measures is higher than set temperature, with solenoid valve interface
The solenoid valve of one 7-1 connection is again turned on, and is continued to import liquid nitrogen to test cabinet 1, is further decreased the temperature of temperature test cabinet 1
Degree, reaches set temperature.Liquid nitrogen or hot inert gas enter the speed of test cabinet 1 and flow can be corresponding by controlling
The size of solenoid valve opening is controlled, and the temperature of hot inert gas can be adjusted by hot inert gas heating device.It surveys
When temperature in examination cabinet 1 reaches set temperature and kept the temperature, according to the pressure of setting, control system driving X, Y and Z-direction add
The servomotor 8 for carrying component moves, and contacts the force snesor 16 in three directions with three surfaces of the first sample 28 respectively
And after reaching setting pressure, 8 stop motion of servomotor, the pressure on sample is remained unchanged, and starts between test sample
Contact resistance is measured under set temperature and pressure between two samples by the voltmeter connecting with test lead and ammeter
Contact resistance.By setting different temperature and pressures, the change of the contact resistance of sample at different temperatures and pressures can be obtained
Change situation, filter out the electrical connection material that can be applied in extreme environment accordingly, guarantees the welding quality of metal material resistance weldering.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (7)
1. three-dimensional loads contact resistance test device under a kind of controllable temperature, which is characterized in that including testing cabinet, load group
Part, temperature sensor, the charging assembly include X to charging assembly, Y-direction charging assembly, Z-direction charging assembly, the load group
Part includes servo motor, compression bar, force snesor, the fixed force snesor in the outer end of the compression bar, the Serve Motor Control compression bar
Movement, the X is respectively arranged in the test X axis of cabinet, Y-axis to charging assembly, Y-direction charging assembly, Z-direction charging assembly
To, Z axis to the compression bar and force snesor are placed in test cabinet, the test cabinet indsole portion fixation sample table, sample table
On stack the first sample and the second sample, power of the X to charging assembly, Y-direction charging assembly and Z-direction charging assembly from the bottom to top
Sensor is respectively acting on three surfaces of the second sample, is separately connected test lead on first sample and the second sample,
The test lead is pierced by by the first wire guide on test cabinet and is connect with voltmeter and ammeter；The force snesor
It is connected with signal transmssion line, signal transmssion line is connect after being pierced by by the second wire guide on test cabinet with control system；Institute
It states and tee tube is set on test cabinet, one end of the tee tube is placed in test cabinet, and the other both ends of tee tube are placed in survey
It tries to be respectively solenoid valve interface one and solenoid valve interface two outside cabinet, the solenoid valve interface one is connected by solenoid valve and liquid nitrogen container
It connects, the solenoid valve interface two is connect by solenoid valve with the venthole of hot inert gas heating device；The temperature sensor
Detecting head insertion test cabinet in, it is described test cabinet be equipped with connection vacuum pump vacuum pump adapter, the temperature sensing
Device, electromagnetic valve, servomotor and vacuum pump are connect with control system.
2. three-dimensional loads contact resistance test device under controllable temperature as described in claim 1, which is characterized in that the load
Component further includes the first cabinet and the second cabinet, and the servo motor is installed on the first cabinet, first cabinet and second
Cabinet is connected by bearing cap, and the fixed force snesor in the outer end of the compression bar, the inner end of the compression bar is protruded into the second cabinet simultaneously
It is threaded spiral plate, the thread spindle being arranged in the spiral plate and the second cabinet couples, the input terminal of the thread spindle
It protrudes into the first cabinet and is coupled by flat key and connector sleeve with the output shaft of servo motor, second cabinet is fixedly installed in survey
It tries on cabinet.
3. three-dimensional loads contact resistance test device under controllable temperature as claimed in claim 2, which is characterized in that the spiral
Plate is coupled with thread spindle by trapezoidal thread.
4. three-dimensional loads contact resistance test device under controllable temperature as claimed in claim 2, which is characterized in that described second
Mat insulation is set between cabinet and test cabinet.
5. three-dimensional loads contact resistance test device under controllable temperature as described in claim 1, which is characterized in that the sample
Platform is equipped with the convex block that the first sample of limitation moves horizontally.
6. three-dimensional loads contact resistance test device under controllable temperature as described in claim 1, which is characterized in that the test
Insulating layer is set on the inner wall of cabinet.
7. three-dimensional loads contact resistance test device under controllable temperature as claimed in claim 6, which is characterized in that the test
Cabinet is made of upper plate, bottom plate and side plate, and gasket is arranged at the docking of the upper plate, bottom plate and side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254826.9U CN209707598U (en) | 2019-02-28 | 2019-02-28 | Three-dimensional loads contact resistance test device under a kind of controllable temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254826.9U CN209707598U (en) | 2019-02-28 | 2019-02-28 | Three-dimensional loads contact resistance test device under a kind of controllable temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209707598U true CN209707598U (en) | 2019-11-29 |
Family
ID=68642768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920254826.9U Expired - Fee Related CN209707598U (en) | 2019-02-28 | 2019-02-28 | Three-dimensional loads contact resistance test device under a kind of controllable temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209707598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109828155A (en) * | 2019-02-28 | 2019-05-31 | 兰州大学 | Three-dimensional loads contact resistance test device under a kind of controllable temperature |
-
2019
- 2019-02-28 CN CN201920254826.9U patent/CN209707598U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109828155A (en) * | 2019-02-28 | 2019-05-31 | 兰州大学 | Three-dimensional loads contact resistance test device under a kind of controllable temperature |
| CN109828155B (en) * | 2019-02-28 | 2024-01-12 | 兰州大学 | Three-way loading contact resistance testing device under controllable temperature |
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| 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: 20191129 Termination date: 20210228 |