CN210863349U - Improved unconfined compression resistance instrument capable of testing radial deformation of part - Google Patents
Improved unconfined compression resistance instrument capable of testing radial deformation of part Download PDFInfo
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- CN210863349U CN210863349U CN201921949587.5U CN201921949587U CN210863349U CN 210863349 U CN210863349 U CN 210863349U CN 201921949587 U CN201921949587 U CN 201921949587U CN 210863349 U CN210863349 U CN 210863349U
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- radial deformation
- unconfined compression
- supporting plate
- test piece
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Abstract
The utility model discloses a but not lateral limit resistance to compression appearance of radial deformation of modified measurable quantity test piece. The improved device mainly comprises an expansion platform and a magnetic meter frame. The expansion platform consists of a bearing iron supporting plate, an annular sleeve and a fastening bolt. The supporting plate and the sleeve are welded into a whole and are fixed on a bearing platform of the compression resistance instrument through fastening bolts. Two magnetic meter racks are fixed on two sides of the expansion platform through the magnetic attraction base. And adjusting a dial gauge frame knob to control the two dial gauge measuring needles to be arranged at the axial middle position of the sample to be measured at a 90-degree intersection angle. The stylus is arranged radially along the sample. The utility model discloses a can survey the radial deformation of sample when test piece axial deformation to further try out the poisson's ratio of test piece. The utility model discloses a having increased the function of unconfined resistance to compression appearance, having simplified test piece mechanical properties test process, have advantages such as simple reliable, cyclic utilization is high, the dismouting of being convenient for, the practicality is strong.
Description
Technical Field
The utility model discloses a this technical field of ground test instrument especially relates to a free limit resistance to compression appearance of radial deformation of testable piece of modified.
Background
The strength and the deformation are two important indexes of the mechanical property of the material. The unconfined compression resistance instrument can be used for quickly and conveniently measuring the unconfined compression strength and the axial compression deformation of the test piece. The unconfined compression resistance instrument is a convenient and fast measuring instrument, and is widely applied to the field of basic mechanical parameter testing of low-strength materials due to the characteristics of rapidness, smallness and accurate measurement.
Such as: CN 209086063U discloses no limit compressive strength appearance, including the instrument base, the upper surface of instrument base is equipped with first support column, second support column, seal box and lift lead screw, the seal box is located between first support column and the second support column, the same roof of upper end fixedly connected with of first support column and second support column, the last fixed surface of roof is connected with carries the handle, one side outer wall fixedly connected with storing box of first support column is kept away from to the second support column, the lower surface of roof is equipped with the measuring ring, the inside of measuring ring is equipped with the dynamometer, the lower extreme of measuring ring is equipped with the increased pressure board.
For another example: CN 209055413U discloses unconfined compressive strength detection device, including the detector shell, the internally mounted of detector shell has the hydraulic press, the motor is installed to one side of hydraulic press, the hydraulic pressure case is installed to the upper end of motor, flexible cylinder is installed to the upper end of hydraulic press, the fourth screw thread spliced pole is installed to flexible cylinder's upper end, slidable compression disc is installed to the upper end of fourth screw thread spliced pole, fixed connection cylinder is installed to the up end of detector shell, fixed connection cylinder has two, the cylindrical surface of fixed connection installs slidable fixed disc, the upper end of slidable fixed disc is installed the second screw thread spliced pole, the upper end of second screw thread spliced pole is installed RFP-602 pressure sensor.
From the above documents, it is known that: the conventional unconfined compressive strength detection device mainly focuses on researching vertical deformation-axial pressure of a sample; without studying radial deformation without lateral confinement. The reason is mainly that due to the limitation of the function of the instrument, the unconfined compression resistance instrument cannot measure the transverse deformation of the test piece, namely, cannot obtain another mechanical parameter representing the comprehensive deformation characteristic of the material, namely Poisson's ratio.
Therefore, there is a need for further improvement of the existing unconfined compression tester, which can measure and study the deformation rule of the transverse deformation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a but lateral confinement resistance to compression appearance of radial deformation of modified testable piece, it can be when there is not lateral confinement resistance to compression test the deformation of the lateral deformation of simultaneous measurement test piece.
The above technical purpose of the present invention can be achieved by the following technical solutions:
an improved unconfined compression resistance instrument capable of testing radial deformation of a piece comprises an expansion platform, 2 magnetic gauge stands, a test piece bearing platform of the unconfined compression resistance instrument, 2 radial deformation measurement dial gauges and gauge stand knobs;
the expansion platform consists of a pressure-bearing iron supporting plate, an annular sleeve and a fastening bolt, wherein the pressure-bearing iron supporting plate and the annular sleeve are welded into a whole and are fixed with a test piece bearing platform of the unconfined compression resistance instrument through the fastening bolt;
magnetic suction bases are arranged on the lower sides of the 2 magnetic meter racks, and the 2 magnetic meter racks are respectively fixed on the two sides of the expansion platform through the magnetic suction bases;
the magnetic gauge stand is provided with a gauge stand knob, and the 2 radial deformation measurement dial gauges are connected with the 2 magnetic gauge stands through the gauge stand knob respectively.
Furthermore, two dial indicator measuring needles are controlled to be arranged at the axial middle position of the sample to be measured in a 90-degree intersection angle mode through adjusting a dial indicator frame knob, and the measuring needles of 2 radial deformation measuring dial indicators are arranged along the radial direction of the sample;
furthermore, the specification of the pressure-bearing iron supporting plate is matched with the frame of the unconfined compression resistance instrument, so that the pressure-bearing iron supporting plate can be inserted into the middle of the frame, the width of the pressure-bearing iron supporting plate is greater than c, and c is the diameter of the original test piece bearing platform of the unconfined compression resistance instrument.
Furthermore, the pressure-bearing iron supporting plate and the annular sleeve are made of hypoeutectic white cast iron.
Furthermore, the side wall of the annular sleeve is symmetrically provided with holes, and the hole diameter is consistent with the diameter of the fastening bolt.
Further, still include: and the axial deformation dial indicator is arranged on the vertical force loading rod.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
first, the utility model discloses make unconfined resistance to compression appearance can be used to test the radial deformation of test piece (mainly for the rock test piece) under the unconfined compression condition, according to the axial deformation that the original amesdial of unconfined resistance to compression appearance read again, alright calculate the poisson ratio of sample indirectly.
Second, utility model has simplified test piece mechanical properties test process, has advantages such as simple reliable, cyclic utilization is high, the dismouting of being convenient for, the practicality is strong.
Drawings
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention.
Fig. 1 is a front view of the present invention (axial deformation dial gauge is not shown).
Fig. 2 is the utility model discloses an expansion platform, magnetism table frame, 3 ring sleeve's of pressure-bearing iron layer board axonometric map.
Fig. 3 is a front view of the present invention (showing an axial deformation dial gauge).
Description of reference numerals: 1-an expansion platform, 2-a magnetic gauge stand, 3-a pressure-bearing iron supporting plate, 4-an annular sleeve, 5-a fastening bolt, 6-a magnetic attraction base, 7-a gauge stand knob, 8-a dial gauge measuring needle, 9-a sample to be measured, 10-an unconfined compression gauge frame, 11-an unconfined compression gauge original test piece bearing platform, 12-a hand wheel, 13-an electric switch, 14-a radial deformation dial gauge, 15-an axial pressure gauge and 16-an axial deformation dial gauge.
Detailed Description
In a first embodiment, an unconfined compression tester device capable of testing radial deformation of a test piece includes: the device comprises an expansion platform 1, a magnetic gauge stand 2, a pressure-bearing iron supporting plate 3, an annular sleeve 4, a fastening bolt 5, a magnetic suction base 6, a gauge stand knob 7, a dial indicator measuring pin 8, a to-be-measured sample 9, an unconfined compression resistance instrument frame 10, an unconfined compression resistance instrument test piece bearing platform 11, a hand crank wheel 12, an electric switch 13, a radial dial indicator 14 and an axial dial indicator 16;
the expansion platform 1 is placed on a test piece bearing platform 11 of the unconfined compression resistance instrument, and the compacted iron supporting plate 3 and the annular sleeve 4 are welded to form the expansion platform 1;
the annular sleeve 4 is provided with a bolt hole; the fastening bolt 5 penetrates through a bolt hole of the annular sleeve 4 to fix the expansion platform 1 and the unconfined compression resistance instrument test piece bearing platform 11 together;
the magnetic meter frame 2 is fixed on two sides of the expansion platform 1 through the magnetic base 6;
the sample to be tested 9 is placed in the middle of the expansion platform 1;
two dial indicator measuring needles 8 are controlled to be arranged at the axial middle position of a sample to be measured in a 90-degree intersection angle mode through adjusting a dial indicator frame knob 7, and the measuring needles are arranged along the radial direction of the sample to be measured 9.
When the experimental device is used for testing, the steps are as follows:
and then adjusting a hand wheel 12 to control the sample 9 to be measured to rise to a proper position, turning on an electric switch 13, turning off the electric switch 13 after the unconfined compression test is finished, reading the displacement readings of two radial dial indicators 14, averaging, and dividing the average value of the radial displacement by the original size of the sample to obtain the radial strain, and dividing the displacement readings of an axial dial indicator 16 by the original size of the sample to obtain the axial strain. Further, the poisson's ratio of the sample can be calculated by dividing the axial strain of the sample by the radial strain.
The above embodiment is the preferred embodiment of the present invention, which is only used to facilitate the explanation of the present invention, it is not right to the present invention, which makes the restriction on any form, and any person who knows commonly in the technical field can use the present invention to make the equivalent embodiment of local change or modification without departing from the technical features of the present invention.
Claims (6)
1. An improved unconfined compression resistance instrument capable of testing radial deformation of a piece is characterized by comprising an expansion platform, 2 magnetic gauge stands, a test piece bearing platform of the unconfined compression resistance instrument, 2 radial deformation measurement dial gauges and a gauge stand knob;
the expansion platform consists of a pressure-bearing iron supporting plate, an annular sleeve and a fastening bolt, wherein the pressure-bearing iron supporting plate and the annular sleeve are welded into a whole and are fixed with a test piece bearing platform of the unconfined compression resistance instrument through the fastening bolt;
magnetic suction bases are arranged on the lower sides of the 2 magnetic meter racks, and the 2 magnetic meter racks are respectively fixed on the two sides of the expansion platform through the magnetic suction bases;
the magnetic gauge stand is provided with a gauge stand knob, and the 2 radial deformation measurement dial gauges are connected with the 2 magnetic gauge stands through the gauge stand knob respectively.
2. The improved unconfined compression resistance instrument capable of testing the radial deformation of the part as claimed in claim 1, wherein two dial indicator measuring needles are controlled to be arranged at the axial middle position of a sample to be tested at an intersection angle of 90 degrees by adjusting a dial indicator frame knob, and the measuring needles of 2 radial deformation measuring dial indicators are arranged along the radial direction of the sample.
3. The improved unconfined compression tester capable of testing radial deformation of a piece as claimed in claim 1, wherein the specification of the bearing iron supporting plate is matched with the frame of the unconfined compression tester so that the bearing iron supporting plate can be inserted into the middle of the frame, the width of the bearing iron supporting plate is larger than c, and c is the diameter of the original test piece bearing platform of the unconfined compression tester.
4. The improved unconfined compression tester capable of testing radial deformation of a piece according to claim 1, wherein the pressure-bearing iron supporting plate and the annular sleeve are made of hypoeutectic white cast iron.
5. The improved unconfined compression tester capable of testing radial deformation of a part as claimed in claim 1, wherein the side wall of the annular sleeve is symmetrically provided with holes with the diameter consistent with the diameter of the fastening bolt.
6. An improved unconfined compression tester for radial deformation of a testable piece as claimed in claim 1, further comprising: and the axial deformation dial indicator is arranged on the vertical force loading rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949587.5U CN210863349U (en) | 2019-11-12 | 2019-11-12 | Improved unconfined compression resistance instrument capable of testing radial deformation of part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949587.5U CN210863349U (en) | 2019-11-12 | 2019-11-12 | Improved unconfined compression resistance instrument capable of testing radial deformation of part |
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| Publication Number | Publication Date |
|---|---|
| CN210863349U true CN210863349U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921949587.5U Expired - Fee Related CN210863349U (en) | 2019-11-12 | 2019-11-12 | Improved unconfined compression resistance instrument capable of testing radial deformation of part |
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| CN (1) | CN210863349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018694A (en) * | 2021-11-30 | 2022-02-08 | 中国路桥工程有限责任公司 | Unconfined compressive strength's sample surface state survey device |
-
2019
- 2019-11-12 CN CN201921949587.5U patent/CN210863349U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018694A (en) * | 2021-11-30 | 2022-02-08 | 中国路桥工程有限责任公司 | Unconfined compressive strength's sample surface state survey device |
| CN114018694B (en) * | 2021-11-30 | 2023-11-24 | 中国路桥工程有限责任公司 | Sample surface state measuring device without confined compressive strength |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 Termination date: 20211112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |