CN2153039Y - Circular direction displacement amplifier - Google Patents
Circular direction displacement amplifier Download PDFInfo
- Publication number
- CN2153039Y CN2153039Y CN 93236325 CN93236325U CN2153039Y CN 2153039 Y CN2153039 Y CN 2153039Y CN 93236325 CN93236325 CN 93236325 CN 93236325 U CN93236325 U CN 93236325U CN 2153039 Y CN2153039 Y CN 2153039Y
- Authority
- CN
- China
- Prior art keywords
- sensor
- connecting rod
- hinge
- hoop
- displacement amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 18
- 239000011435 rock Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000003321 amplification Effects 0.000 abstract 1
- 238000013459 approach Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 2
- 208000018672 Dilatation Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a device for measuring the large deformation of rock samples at a circular direction for an electro-hydraulic servo machine at an MTS company. Two levers are hinged into X shapes, and both ends of the levers are respectively connected with a circular-direction chain and a sensor. The device delivers circular direction displacement to the sensor through chains, and X-shaped amplification can be selected as required. To prevent the sensor from being damaged when rock samples are suddenly broken up and deformed to be larger in a measuring process, the sensor can be automatically slid upward along an arc face at one end of a connecting rod to protect the sensor when the sensor approaches to a maximum scale. After tested, the utility model has the advantages of simple structure, high accuracy, good sensitivity, practicality and reliability, and provides an effective means for studying the mechanical property of rocks after peaks.
Description
The utility model relates to a kind of rock mechanics proving installation, the displacement measuring device in especially a kind of electro-hydraulic servo rock mechanics testing system.
Along with deepening continuously of researchs such as mining science, geophysics science, people need more experimental basis to the geologize Mechanical Properties of Materials, and the servo of American MTS company provides modernized means of testing for measuring mechanical properties of rock.But because the maximum range scope of existing hoop strain sensor has only ± 8.00mm, can not be used for studying breaking and the stress-strain relation in dilatation stage of rock, the security of can not guarantee to break suddenly, deflection being uprushed the situation lower sensor that takes place at the small deformation rock sample.
The purpose of this utility model is to provide a kind of simple in structure, sensor amplifier that precision is high, safe and reliable for overcoming the deficiencies in the prior art part, and it can record the hoop big displacement quantity of rock sample easily on the MTS servo.
Task of the present utility model is implemented as follows, it is to adopt two connecting rods to become the X type by the hinge cross-articulation, its two ends outside, upper end is connected with the hoop chain, the inboard links to each other with a spring, makes the hoop chain with the rock sample banding, lower end two ends and the loose joint of sensor chuck, connecting rod is a stripe shape stock, there is skewed slot at the middle part, and a pin-and-hole is arranged in the groove, and the connecting rod downside is an arcwall face.Like this, when the hoop large deformation of rock sample, can become the distortion of transducer range scope by this device.When distortion proximity transducer maximum range; the sensor chuck can rise until the hinged place along the arcwall face slip of connecting rod automatically; so just can break, protect automatically when deflection is uprushed sensor at rock sample suddenly; this amplifier can also pass through the inclined trough surface self-locking when displacement reaches the sensor maximum range in addition, can protect sensor equally.
Compared with the prior art the utility model has the following advantages: it is simple in structure; make easily; loading and unloading and easy to operate; the precision height, safe and reliable, the break big displacement of hoop in stage of energy measurement rock sample; and when measuring big displacement; during the proximity transducer maximum range, sensor can slide rise until the hinged place along arcwall face, so break suddenly at rock sample, can protect the servo sensor automatically when deflection is uprushed.And can be according to rock mechanics properties, design rod hinge connection position is to change the sensor enlargement factor.It can be widely used in ROCK MECHANICS RESEARCH and test.
Description of drawings:
Fig. 1 is a structural drawing of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail, as shown in Figure 1, it is made up of rock sample 1, spring 2, hoop chain 3, connecting rod 4, hinge 5, slipping plane 6 and sensor chuck 7; Wherein connecting rod 4 is with 45
#The bar shaped stock that steel or other low alloy steel material are made, there is a skewed slot at its middle part, when the skewed slot width can arrive maximum range according to the sensor displacement, can pin automatically by skewed slot and decide, and a circular pin hole is arranged in the middle of the skewed slot; Hoop displacement sensor scope can be selected according to the mechanical property of rock sample, in the skewed slot during position of pin-and-hole, can change the enlargement factor of sensor on changing connecting rod; Connecting rod 4 lower side are an arc slipping plane 6, termination portion is less, the inclined trough surface of two connecting rods 4 uses hinge 5 hinged after the counterpart in opposite directions, making connecting rod 4 can be that freely rotate on groove face at the center with hinge 5, the upper end two ends outside of two connecting rods 4 is connected with hoop chain 3 two on the rock sample 1 respectively, the inboard, two ends links to each other with spring 2, makes hoop chain 3 banding test specimens; Its lower end two ends and sensor chuck 7 flexibly connect, and make sensor chuck 7 positions on the extended line of pin-and-hole and spring 2 joint lines, can obtain the enlargement factor of measuring so exactly.When the hoop displacement of measuring during near maximum range, sensor upwards slides until hinge 5 places automatically by chuck 7, to guarantee that sensor is not damaged.
Claims (5)
1, a kind of hoop displacement amplifier, it is to connect into the X type by two connecting rods (4), its both upper ends thereof connects a hoop chain (3) on the rock sample, two ends are inboard to link to each other with spring (2), lower end and sensor chuck (7) loose joint, the connecting rod (4) that is characterised in that of the present utility model is the bar shaped stock, there is a skewed slot at its middle part, in the middle of the skewed slot circular hole, side, its underpart being arranged is an arc slipping plane (6); Termination portion is less; Two connecting rods (4) connect by hinge (5).
2, hoop displacement amplifier according to claim 1, it is characterized in that described connecting rod (4), the inclined trough surface of two connecting rods (4) uses hinge (5) hinged after the counterpart in opposite directions, making connecting rod (4) can be that freely rotate on groove face at the center with hinge (5), and makes sensor chuck (7) position on the extended line of the line of pin-and-hole and spring (2) tie point.
3, hoop displacement amplifier according to claim 1 is characterized in that the width of the skewed slot at described connecting rod (4) middle part, is when arriving maximum range according to the sensor displacement, can pin automatically to determine by skewed slot, with protection ring to sensor.
4, hoop displacement amplifier according to claim 1; it is characterized in that it is according to when distortion makes the sensor displacement near maximum range that described connecting rod (4) is gone up the design of arcwall face; can be automatically (7) are upwards sliding from the position locates until hinge (5) along arcwall face, but automatic protection ring is to sensor.
5, hoop displacement amplifier according to claim 1 is characterized in that described connecting rod (4) and hinge (5) are with 45
#Steel or other low alloy steel material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236325 CN2153039Y (en) | 1993-02-22 | 1993-02-22 | Circular direction displacement amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236325 CN2153039Y (en) | 1993-02-22 | 1993-02-22 | Circular direction displacement amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2153039Y true CN2153039Y (en) | 1994-01-12 |
Family
ID=33811522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93236325 Expired - Fee Related CN2153039Y (en) | 1993-02-22 | 1993-02-22 | Circular direction displacement amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2153039Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101422902B (en) * | 2007-10-31 | 2011-01-05 | 鸿富锦精密工业（深圳）有限公司 | Manipulator |
| CN1916564B (en) * | 2006-08-30 | 2011-04-20 | 长春试验机研究所 | Method and equipment for measuring increment of circumferential arc length in columned sample |
| CN103487327A (en) * | 2013-08-30 | 2014-01-01 | 上海华龙测试仪器股份有限公司 | Roller-chain extensometer |
| CN105444727A (en) * | 2015-11-16 | 2016-03-30 | 武汉大学 | Measuring range adjusting device of electronic extensometer |
| CN106248477A (en) * | 2016-09-14 | 2016-12-21 | 山东大学 | Rock type cylindrical standard test specimen hoop displacement measuring device and method of testing |
| CN110132714A (en) * | 2018-02-08 | 2019-08-16 | 山东高速济莱城际公路有限公司 | A kind of device and test method for testing irregular rock mass sample deformation parameter |
| CN111811410A (en) * | 2020-07-28 | 2020-10-23 | 重庆大学 | Wide-range slip surface displacement monitoring device and measuring method thereof |
| CN112629398A (en) * | 2020-11-23 | 2021-04-09 | 南方科技大学 | Device and system for measuring radial deformation of rock soil |
-
1993
- 1993-02-22 CN CN 93236325 patent/CN2153039Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916564B (en) * | 2006-08-30 | 2011-04-20 | 长春试验机研究所 | Method and equipment for measuring increment of circumferential arc length in columned sample |
| CN101422902B (en) * | 2007-10-31 | 2011-01-05 | 鸿富锦精密工业（深圳）有限公司 | Manipulator |
| CN103487327A (en) * | 2013-08-30 | 2014-01-01 | 上海华龙测试仪器股份有限公司 | Roller-chain extensometer |
| CN105444727A (en) * | 2015-11-16 | 2016-03-30 | 武汉大学 | Measuring range adjusting device of electronic extensometer |
| CN106248477A (en) * | 2016-09-14 | 2016-12-21 | 山东大学 | Rock type cylindrical standard test specimen hoop displacement measuring device and method of testing |
| CN106248477B (en) * | 2016-09-14 | 2019-04-26 | 山东大学 | Rock type cylindrical standard test specimen circumferential direction displacement measuring device and test method |
| CN110132714A (en) * | 2018-02-08 | 2019-08-16 | 山东高速济莱城际公路有限公司 | A kind of device and test method for testing irregular rock mass sample deformation parameter |
| CN110132714B (en) * | 2018-02-08 | 2023-11-10 | 山东高速济莱城际公路有限公司 | Device and method for testing deformation parameters of irregular rock mass sample |
| CN111811410A (en) * | 2020-07-28 | 2020-10-23 | 重庆大学 | Wide-range slip surface displacement monitoring device and measuring method thereof |
| CN111811410B (en) * | 2020-07-28 | 2022-01-28 | 重庆大学 | Wide-range slip surface displacement monitoring device and measuring method thereof |
| CN112629398A (en) * | 2020-11-23 | 2021-04-09 | 南方科技大学 | Device and system for measuring radial deformation of rock soil |
| CN112629398B (en) * | 2020-11-23 | 2022-08-26 | 南方科技大学 | Device and system for measuring radial deformation of rock soil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |