CN210071498U - Device for measuring outer wall of test piece - Google Patents
Device for measuring outer wall of test piece Download PDFInfo
- Publication number
- CN210071498U CN210071498U CN201920692581.8U CN201920692581U CN210071498U CN 210071498 U CN210071498 U CN 210071498U CN 201920692581 U CN201920692581 U CN 201920692581U CN 210071498 U CN210071498 U CN 210071498U
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- China
- Prior art keywords
- measuring
- wall
- test piece
- sensor
- guide rod
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- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000005259 measurement Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A device for measuring the outer wall of a test piece belongs to the field of test piece mechanical property measuring equipment. Comprises a pressure plate, a sensor, a measuring plate, a guide rod and a chassis; one end of the guide rod is in threaded connection with the base plate, a hole for the guide rod to penetrate through is formed in the measuring disc, the measuring disc is connected with the guide rod through a bolt pin, the measuring disc is of a circular ring structure, the sensor is installed on the inner wall of the measuring disc, and the pressure disc is located above the measuring disc. The utility model discloses an inner circle of survey dish can drive the sensor rotation, and the high position through installing the survey dish of different quantity and adjusting the survey dish through the bolt can make the sensor record the multiple spot deformation or the multiple spot stress of test piece outer wall simultaneously.
Description
Technical Field
The utility model relates to a test piece mechanical properties measuring equipment field especially relates to a be used for test piece outer wall measuring device.
Background
The existing stress measurement of the outer wall of a cylindrical or barrel-shaped test piece mostly adopts a test method that a strain sensor is pasted on the outer wall point, the deformation is not quantitative, and the multipoint deformation or the multipoint stress of the outer wall of the test piece cannot be simultaneously tested, so that the deformation of the outer wall of the test piece has no visual quantitative data, and the deformation and the stress characteristics of the outer wall of the test piece when the cylindrical or barrel-shaped test piece is compressed up and down cannot be reflected.
SUMMERY OF THE UTILITY MODEL
The problem that the stress measuring device for solving current cylindricality or cylindric test piece outer wall can not test multiple spot deformation or multiple spot stress simultaneously, the utility model provides a be used for test piece outer wall measuring device.
In order to achieve the above object, the utility model adopts the following technical scheme: a device for measuring the outer wall of a test piece comprises a pressure plate, a sensor, a measuring plate, a guide rod and a chassis; one end of the guide rod is in threaded connection with the base plate, a hole for the guide rod to penetrate through is formed in the measuring disc, the measuring disc is connected with the guide rod through a bolt pin, the measuring disc is of a circular ring structure, the sensor is installed on the inner wall of the measuring disc, and the pressure disc is located above the measuring disc.
Furthermore, the measuring disc comprises an outer ring, an inner ring and a bearing, the bearing is located between the outer ring and the inner ring, the sensor is installed on the inner wall of the inner ring, and the outer ring is provided with a boss.
Furthermore, the boss is provided with a hole for the guide rod to pass through, and the bolt pin extends into the hole from the side face of the boss to be in contact with the guide rod.
Further, the number of the guide rods is 4.
Furthermore, the number of the measuring discs is more than one.
Further, the number of the sensors is multiple.
The utility model has the advantages that: the inner ring of the measuring disc can drive the sensor to rotate, and the sensor can simultaneously measure multipoint deformation or multipoint stress of the outer wall of the test piece by installing different numbers of measuring discs and adjusting the height positions of the measuring discs through bolts.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the measuring disc of the present invention.
In the figure, 1, a pressure plate, 2, a sensor, 3, a bolt, 4, a bearing, 5, a guide rod, 6, a test piece, 7, a chassis, 8, a data acquisition instrument, 9, an outer ring and 10, an inner ring.
Detailed Description
A device for measuring the outer wall of a test piece comprises a pressure plate 1, a sensor 2, a measuring disc, a guide rod 5 and a chassis 7; one end of the guide rod 5 is in threaded connection with the base plate 7, a hole for the guide rod 5 to penetrate through is formed in the measuring disc, the measuring disc is connected with the guide rod 5 through a bolt pin 3 and is of a circular ring structure, the test piece 6 is located in the measuring disc, the sensor 2 is installed on the inner wall of the measuring disc, and the pressure plate 1 is located above the measuring disc.
The measuring disc comprises an outer ring 9, an inner ring 10 and a bearing 4, the bearing 4 is positioned between the outer ring 9 and the inner ring 10, the sensor 2 is installed on the inner wall of the inner ring 10, and the outer ring 9 is provided with a boss.
The boss is provided with a hole for the guide rod 5 to pass through, and the bolt pin 3 extends into the hole from the side face of the boss to be contacted with the guide rod 5.
The number of the guide rods 5 is 4.
The number of the measuring discs is more than one.
The quantity of sensor 2 is a plurality of, and a plurality of sensor 2 encircle test piece 6, and test piece 6 is put on chassis 7, and pressure disk 1 is put on test piece 6, and a plurality of sensor 2 connect data acquisition instrument 8.
Use the utility model discloses the concrete step of device is as follows:
s1: the method comprises the following steps of:
s1.1: selecting a cylindrical or barrel-shaped test piece;
s1.2: treating the surface of the test piece 6 to ensure that the upper surface and the lower surface of the test piece 6 are smooth;
s2: the device is installed and prepared for a test, and the specific steps are as follows:
s2.1: selecting a guide rod 5 with relative length according to the height of the test piece 6; the thickness of the thread section at the bottom of the guide rod 5 is the same as that of the chassis 7, the guide rod 5 is a smooth surface except the thread section, and the four guide rods 5 are screwed into the bolt holes reserved in the chassis 7 to ensure the stable installation.
S2.2: the bolt pin 3 is used for fixing the measuring disc and the guide rod 5 together through the bolt pin hole of the measuring disc, and the measuring disc is in a horizontal state by adjusting the positions of the four bolt pins 3.
S2.3: and (4) placing the test piece 6 obtained in the step (S1) in the center of the test disc, installing the sensor 2 on the inner ring 10 by using a bolt device, wherein the sensor 2 can be a deformation sensor or a stress sensor, and can also be a part of the stress sensor or a part of the stress sensor, the number of the test discs can be selected according to the test requirement and the length of the guide rod 5, if a plurality of test discs exist, the positions of the test discs can be respectively adjusted according to the length of the guide rod 5, and the sensor 2 is adjusted to be closely attached to the outer wall of the test piece 6.
S2.4: the lead of the sensor 2 is connected with the data acquisition instrument 8, the power line of the data acquisition instrument 8 is connected with the power supply, the pressure plate 1 is placed on the test piece 6, and the universal testing machine is arranged on the pressure plate 1.
And S3, starting the universal testing machine to enable the upper pressure plate of the universal testing machine to be closely attached to the pressure plate 1 and adjust the zero position of the instrument of the pressure testing machine, applying pressure by the universal testing machine, and obtaining the deformation value and the stress value of the outer wall of the test piece 6 when the test piece 6 is compressed by the data acquisition instrument.
The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the design of the present invention within the technical scope of the present invention.
Claims (6)
1. The device for measuring the outer wall of the test piece is characterized by comprising a pressure plate (1), a sensor (2), a measuring plate, a guide rod (5) and a chassis (7); guide arm (5) one end and chassis (7) threaded connection are equipped with the hole that is used for guide arm (5) to pass on surveying the dish, survey the dish and be connected through cotter (3) with guide arm (5), survey the dish and be the ring structure, and sensor (2) are installed in surveying the dish inner wall, and pressure disk (1) is located surveys the dish top.
2. A device for measuring the outer wall of a test piece according to claim 1, characterized in that the dial comprises an outer ring (9), an inner ring (10) and a bearing (4), the bearing (4) is located between the outer ring (9) and the inner ring (10), the sensor (2) is mounted on the inner wall of the inner ring (10), and the outer ring (9) is provided with a boss.
3. A device for measuring the outer wall of a test piece according to claim 2, characterized in that the boss is provided with a hole for the guide rod (5) to pass through, and the pin (3) extends from the side of the boss into the hole to contact the guide rod (5).
4. A device for measuring the outer wall of a test specimen according to claim 1, characterized in that the number of guide rods (5) is 4.
5. An apparatus as claimed in claim 1, wherein the number of discs is more than one.
6. A device for measurement of the outer wall of a test piece according to claim 1, characterised in that the number of sensors (2) is multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920692581.8U CN210071498U (en) | 2019-05-15 | 2019-05-15 | Device for measuring outer wall of test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920692581.8U CN210071498U (en) | 2019-05-15 | 2019-05-15 | Device for measuring outer wall of test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210071498U true CN210071498U (en) | 2020-02-14 |
Family
ID=69452145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920692581.8U Expired - Fee Related CN210071498U (en) | 2019-05-15 | 2019-05-15 | Device for measuring outer wall of test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210071498U (en) |
-
2019
- 2019-05-15 CN CN201920692581.8U patent/CN210071498U/en not_active Expired - Fee Related
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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: 20200214 Termination date: 20210515 |