CN2302509Y - Steel wire anchorage cable (bolt) dynamometer - Google Patents
Steel wire anchorage cable (bolt) dynamometer Download PDFInfo
- Publication number
- CN2302509Y CN2302509Y CN 97200697 CN97200697U CN2302509Y CN 2302509 Y CN2302509 Y CN 2302509Y CN 97200697 CN97200697 CN 97200697 CN 97200697 U CN97200697 U CN 97200697U CN 2302509 Y CN2302509 Y CN 2302509Y
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- dynamometer
- steel wire
- elastic body
- bar
- bolt
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Abstract
The utility model relates to a steel wire anchorage cable (bolt) dynamometer which is suitable for anchorage fixing engineering of a mine field, a side slope field, a water conservancy field, a bridge field, etc. The steel wire anchorage cable (bolt) dynamometer has an annular elastic body 1 in which three sets of measuring systems formed 120DEG with each other along a radial direction are arranged, each set of measuring system is composed of a steel wire 2, two electromagnetic coils 3 and 4 and an amplifier 5, the steel wire anchorage cable (bolt) dynamometer is provided with a positioning deviation corrector 6 on which a positioning slot for positioning the center of an anchorage plate and a spherical surface 8 mutually matched with the elastic body 1 are arranged, and the outer part of the elastic body 1 is provided with protective covers 10, 11. The utility model can collect data at any moment, having the advantages of small volume, light weight, high measuring structure accuracy, firmness and durability.
Description
The utility model relates to a kind of anchor cable (bar) anchoring engineering steel chord type anchor cable (bar) dynamometer.This dynamometry has string wire and solenoid in respect of annular elastomeric in annular elastomeric.
Anchor cable (bar) has been widely used in the anchoring engineering in fields such as mine, side slope, water conservancy and bridge.In order to detect its anchoring quality, the safety that guarantees engineering has been developed various anchor cables (bar) dynamometer both at home and abroad with stable.The rigidity dynamometry is in respect of types such as foil gauge formula dynamometer and steel chord type force-measuring meters.The steel chord type force-measuring meter is the strain that the stretching force of anchor cable (bar) is changed into the dynamometer stressed member, change the vibration frequency of string wire, the vibration frequency of string wire is changed into corresponding electric signal, is directly or indirectly demonstrated the stretching force of anchor cable (bar) by supporting receiver.Germany has developed a kind of steel chord type anchor cable (bar) dynamometer, and this dynamometer comprises an annular elastomeric, radially is mutually 120 ° and is distributed with 3 string wires in elastic body.Every string wire and solenoid and excitation pulse generator are formed one group of measuring system.Its weak point is: 1. in the measuring system that every string wire and solenoid and excitation pulse generator are formed, string wire is an intermittent control shaking, and the frequency acquisition value must be before the stable back of string wire vibration and vibration frequency decay.Cause data acquisition time strict thus, can not the random acquisition data.3. for strengthening the string wire amplitude, slow down the speed of its decay, require the active length of string wire longer, quality is bigger, makes dynamometer strengthen volume and weight.3. for producing pulse current, make the string wire vibration, require circuit voltage higher, be generally 15～30V, be difficult for it being used under coal mine or in other explosive atmosphere by explosion-proof test.In addition, dynamometer is not located deviation correcting device, easily bears unbalance loading during use, the accuracy that influence is measured.On-the-spot use dynamometer easily is damaged when being collided with.
The purpose of this utility model is to overcome the weak point of above-mentioned prior art, provides a kind of image data at any time, volume little in light weight, steel chord type anchor cable (bar) dynamometer that can be used for explosive atmosphere.The purpose of this utility model also is to improve the accuracy of dynamometer, and makes it sturdy and durable.
The purpose of this utility model can reach by following measure:
1. make every string wire in 3 string wires of steel chord type anchor cable (bar) dynamometer and 2 solenoids and amplifier form one group of measuring system.
2. increase the location deviation correcting device, match with locating slot between location deviation correcting device and the anchor slab; Annular elastomeric matches by sphere between the deviation correcting device with the location.
3. protective cover is installed outside elastic body.
The utility model has been compared following advantage with existing steel chord type anchor cable (bar) dynamometer:
1. owing to adopted twin coil, make string wire keep continuous continuous vibration, be convenient to data processing, at any time image data.
2. the string wire active length can shorten, and corresponding steel chord type anchor cable (bar) the dynamometer volume and weight that makes reduces.
3. owing to do not need high voltage just can keep the string wire vibration, make steel chord type anchor cable (bar) dynamometer can be used for the inferior explosive atmosphere of coal mine.Enlarged its usable range.
4. the use of location deviation correcting device makes steel chord type anchor cable (bar) dynamometer stressed evenly, has improved the accuracy of its measurement result.
5. make steel chord type anchor cable (bar) dynamometer sturdy and durable after adding protective cover.
Fig. 1 is the synoptic diagram of a kind of steel chord type anchor cable (bar) dynamometer.
Fig. 2 is steel chord type anchor cable (bar) dynamometer with a kind of localised protection cover.
Below in conjunction with accompanying drawing the utility model is made into detailed description.
Referring to Fig. 1.The anchor cable of steel chord type shown in the figure (bar) dynamometry radially is mutually 120 ° and is distributed with 3 groups of measuring systems in respect of annular elastomeric 1 in annular elastomeric 1.Every group of measuring system comprise a string wire 2,
2 solenoids 3 and 4 and amplifier 5.Wherein solenoid 3 is an inductive coil, and solenoid 4 is a drive coil.Coil is with after external receiver is communicated with, and according to electromagnetic induction principle, the induction current in the solenoid 3 amplifies through amplifier 5, has strengthened the magnetic field intensity of solenoid 4, gives the vibration makeup energy of string wire, to keep string wire continuous shaking.Electric current after amplifying simultaneously is counted after shaping, and the mechanical frequency of string wire is become the output of electric signal frequency.
Location deviation correcting device 6 is installed on elastic body 1, the locating slot 7 that makes anchor slab 9 location is arranged on it.Match by sphere 8 between location deviation correcting device and the elastic body 1.During installation, locating slot 7 makes anchor slab 9 centralized positionings, and is concentric with elastic body 1 to guarantee anchor slab, makes elastic body 1 not be subjected to unbalance loading.When anchor cable (bar) and dynamometer disalignment, the employing sphere contacts between location deviation correcting device and the elastic body 1, has avoided elastic body 1 part to be subjected to unbalance loading, makes elastic body 1 bear even load.
Among Fig. 1, protective cover 10 is installed in the outside of elastic body 1.Among Fig. 2,,, 3 localised protection covers 11 are installed corresponding to the solenoid place in the outside of elastic body 1.These protective covers use the steel chord type force-measuring meter at the scene and bumped, unlikely damage when pounding, and are sturdy and durable.
Claims (3)
1. an anchor cable (bar) anchoring engineering is with steel chord type anchor cable (bar) dynamometer, annular elastomeric (1) is arranged, in annular elastomeric (1), radially be mutually 120 ° and be distributed with 3 groups of measuring systems, every group of measuring system has string wire and solenoid, it is characterized in that every group of measuring system comprises a string wire (2), 2 solenoids (3), (4) and amplifier (5).
2. steel chord type anchor cable as claimed in claim 1 (bar) dynamometer is characterized in that having location deviation correcting device (6), and the locating slot (7) that makes anchor slab (9) centralized positioning is arranged on it, matches with sphere (8) between elastic body (1) and location deviation correcting device.
3. steel chord type anchor cable as claimed in claim 1 or 2 (bar) dynamometer is characterized in that in the outside of elastic body (1) protective cover (10), (11) being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97200697 CN2302509Y (en) | 1997-01-22 | 1997-01-22 | Steel wire anchorage cable (bolt) dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97200697 CN2302509Y (en) | 1997-01-22 | 1997-01-22 | Steel wire anchorage cable (bolt) dynamometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2302509Y true CN2302509Y (en) | 1998-12-30 |
Family
ID=33922298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97200697 Expired - Fee Related CN2302509Y (en) | 1997-01-22 | 1997-01-22 | Steel wire anchorage cable (bolt) dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2302509Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100549644C (en) * | 2006-12-26 | 2009-10-14 | 河海大学 | Vibrating chord type dynamometer of hollow anchor bar |
| CN101343880B (en) * | 2007-07-10 | 2011-12-28 | 中铁西北科学研究院有限公司深圳南方分院 | Apparatus and method for existing anchorage engineering quality detection |
| CN102507049A (en) * | 2011-10-28 | 2012-06-20 | 西安欣源测控技术有限公司 | Drill hole vector stress sensor for mine |
| CN107219033A (en) * | 2017-06-13 | 2017-09-29 | 山东大学 | Assembled anchor dynamometer and application method |
| CN117705338A (en) * | 2023-11-16 | 2024-03-15 | 徐州市江之河信息科技有限公司 | Vibrating wire type osmometer for reservoir dam safety monitoring |
-
1997
- 1997-01-22 CN CN 97200697 patent/CN2302509Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100549644C (en) * | 2006-12-26 | 2009-10-14 | 河海大学 | Vibrating chord type dynamometer of hollow anchor bar |
| CN101343880B (en) * | 2007-07-10 | 2011-12-28 | 中铁西北科学研究院有限公司深圳南方分院 | Apparatus and method for existing anchorage engineering quality detection |
| CN102507049A (en) * | 2011-10-28 | 2012-06-20 | 西安欣源测控技术有限公司 | Drill hole vector stress sensor for mine |
| CN107219033A (en) * | 2017-06-13 | 2017-09-29 | 山东大学 | Assembled anchor dynamometer and application method |
| CN107219033B (en) * | 2017-06-13 | 2018-05-18 | 山东大学 | Assembled anchor dynamometer and application method |
| CN117705338A (en) * | 2023-11-16 | 2024-03-15 | 徐州市江之河信息科技有限公司 | Vibrating wire type osmometer for reservoir dam safety monitoring |
| CN117705338B (en) * | 2023-11-16 | 2024-05-31 | 徐州市江之河信息科技有限公司 | Vibrating wire type osmometer for reservoir dam safety monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: BEIJING MINING INST., COAL SCIENCE RESEARXH CENTRAL INST. TO: TIANDI SCIENCE AND TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 100016 Beijing Chaoyang District Liyuan Center Road No. 2 No. 305 Patentee after: Tiandi Science & Technology Co., Ltd. Address before: Youth Road, Beijing, Hepingli Patentee before: Beijing Exploitation Inst. of Coal Scientific Research General Inst. |
|
| 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 |