CN201637522U - Load measuring device for top plate of working face of analog experimental rack - Google Patents
Load measuring device for top plate of working face of analog experimental rack Download PDFInfo
- Publication number
- CN201637522U CN201637522U CN2010201057610U CN201020105761U CN201637522U CN 201637522 U CN201637522 U CN 201637522U CN 2010201057610 U CN2010201057610 U CN 2010201057610U CN 201020105761 U CN201020105761 U CN 201020105761U CN 201637522 U CN201637522 U CN 201637522U
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- bracing frame
- force sensor
- data acquisition
- analog
- loading plate
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Abstract
A load measuring device for the top plate of a working face of an analog experimental rack adopts the structure that a left support frame is arranged at the left end of a connecting plate, and a right support frame is arranged at the right end thereof; a bearing plate is arranged at the upper ends of the left and the right support frames; the upper surface of the bearing plate is connected with a force sensor through a cable; the force sensor is connected with a 108-channel data acquisition system; the 108-channel data acquisition system is connected with a computer through a cable; a left positioning and guiding rod inserted into the left end of the bearing plate is arranged at the left end of the force sensor; a right positioning and guiding rod inserted into the right end of the bearing plate is arranged at the right end of the force sensor; and an elevator mechanism, of which the upper end is arranged on the lower surface of the force sensor is arranged on the left and the support frames. During an analog experiment, the bearing capacities of the bearing plates received by the force sensor are uniform; and by adopting the force sensor connected with the 108-channel data acquisition system, the force-measuring precision is high. The utility model has the advantages that the loading is smooth and controllable, and the measured bearing capacities are accurate. The device is particularly suitable for positions where the analog ore formation is thin and the elevating space is narrow during small-scale analog simulation experiments.
Description
Technical field
The utility model belongs to the experimental apparatus technical field, is specifically related to be used for the simulated experiment frame face top board load determinator in ground, geology, mine etc.
Background technology
The analog simulation experiment is that association areas such as ground, geology, mine are carried out one of major technique means of scientific research.Based on analog simulation theory and different research purposes, by analog simulation to correlative study contents such as rock stratum, chamber, dam body, side slope, roads, lane (tunnel), draw relevant technical indicator and parameter, thus the foundation that provides science to the design and the production practices in above field.
The employed coal face top board of the analog simulation experimental study load monitoring device that the laboratory is traditional mainly contains two kinds of the force cells that floated LOAD CELLS and bottom are equipped with adjusting screw(rod).Load cell structure is simple, use-pattern is flexible and changeable, the supporting base and the single vertical rod semi-girder that are clamped on the angle steel are arranged on the model side, install and move for the experimenter, but because this device adopts supporting base and the single vertical rod cantilever beam structure that is clamped on the angle steel, the clamping supporting base moves trouble, and angle steel and clamping supporting base defective coupling, be easy to generate and slope inwardly, cause the LOAD CELLS cantilever to bow, cantilever and top board loose contact are line or some contact when serious, cause the sensor unbalance stress, influence the authenticity of experimental data.Particularly when top board period ratio more tempestuously during the pressing mold type, make that the LOAD CELLS of a supported end moves down in the model, even damage sensor by pressure, cause the distortion of experimental data.The side force that the bottom is equipped with adjusting screw(rod) makes sensing device processing simple, easy to maintenance, but because adjusting screw(rod) is arranged in the force cell bottom and is positioned at the simulation frame, the narrow and small screw rod descending operation difficulty that makes in operating space, adjusted screw rod difficulty, and directly have influence on the accuracy of institute's test data.These two kinds of device for measuring force unbalance stress, experimental expenses is higher, operation is inconvenient, the authenticity of interference experiment data in experiment.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned analog simulation experiment device for measuring force, and a kind of reasonable in design, simple in structure, easy to operate, simulated experiment frame face top board load determinator that dynamometry is accurate, economical and practical is provided.
Solving the problems of the technologies described above the technical scheme that is adopted is: the left end at web joint is provided with left bracing frame, right-hand member is provided with right bracing frame, the upper end of left side bracing frame and right bracing frame is provided with loading plate, the upper surface of loading plate is provided with the force transducer that links to each other with 108 circuit-switched data acquisition systems by cable, 108 circuit-switched data acquisition systems link to each other with computing machine by cable, the sensor left end is provided with the left positioning and guiding bar that inserts in the loading plate left end, right-hand member is provided with the right positioning and guiding bar that inserts in the loading plate right-hand member, and left bracing frame and right bracing frame are provided with the elevating mechanism that its upper end is positioned at the force transducer lower surface.
Left bracing frame of the present utility model and right bracing frame are the U-shaped bracing frame.
Elevating mechanism of the present utility model is adjusting screw(rod) or hydraulic jack or electronic lifting jack or mechanical screw jack.
The utility model has adopted loading plate, and when carrying out simulated experiment, the received bearing capacity of force transducer is even, has adopted the force cell that links to each other with 108 circuit-switched data acquisition systems, dynamometry precision height.The utility model is compared with existing simulation dynamometry experiment instrument device, have advantages such as simple in structure, easy to use, that loading bearing capacity steadily controlled, that tested is accurate, can be used for ground, geology, the experiment of mine bearing capacity analog simulation, the special adaptation when doing the experiment of small scale analog simulation,, the seam thickness of simulation is little, descending operation space-constrained position.
Description of drawings
Fig. 1 is the front view of an embodiment of the utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described, but the utility model is not limited to these embodiment.
Embodiment 1
In Fig. 1,2,3, the simulated experiment frame face top board load determinator of present embodiment is made of left positioning and guiding bar 1, force transducer 2, loading plate 3, right positioning and guiding bar 4, right positioning and guiding nut 5, right adjusting screw(rod) 6, right bracing frame 7, web joint 8, left bracing frame 9, left adjusting screw(rod) 10, left positioning and guiding nut 11,108 circuit-switched data acquisition systems 12, computing machine 13 connections.
Be fixedly connected with the screw threads for fastening connector at the left end of web joint 8 left bracing frame 9 is installed, the right-hand member of web joint 8 is fixedly connected with the screw threads for fastening connector right bracing frame 7 is installed, left side bracing frame 9 and right bracing frame 7 are the U-shaped bracing frame, the upper end of left side bracing frame 9 and right bracing frame 7 is processed with screw, the upper end of left side bracing frame 9 and right bracing frame 7 is fixedly connected with the screw threads for fastening connector loading plate 3 is installed, two outsides respectively are processed with pilot hole about loading plate 3, pilot hole two inboards respectively are processed with a screw, the upper surface left end of loading plate 3 passes in the pilot hole of left-external side that force transducer 2 is inserted into loading plate 3 with left positioning and guiding bar 1, right-hand member passes in the right lateral pilot hole that force transducer 2 is inserted into loading plate 3 with right positioning and guiding bar 4, force transducer 2 is fixed on the upper surface of loading plate 3, and force transducer 2 can move up and down along left positioning and guiding bar 1 and right positioning and guiding bar 4.Force transducer 2 links to each other with 108 circuit-switched data acquisition systems 12, this force transducer 2, dynamometry precision height, 108 circuit-switched data acquisition systems 12 link to each other with computing machine 13 by cable, upper end at left bracing frame 9 is equipped with left adjusting screw(rod) 10 by thread connection, the screw that the screw of left bracing frame 9 upper ends and loading plate 3 left end inboards are passed in the upper end of left side adjusting screw(rod) 10 withstands on the lower surface of force transducer 2 left ends, the screw that the screw of right bracing frame 7 upper ends and loading plate 3 right-hand member sides are passed in the upper end of right adjusting screw(rod) 6 withstands on the lower surface of force transducer 2 right-hand members, the dextrorotation adjusting screw(rod) 10 that turns left, the left side of force transducer 2 is by jack-up, the left adjusting screw(rod) 10 of inhour rotation, the left side of force transducer 2 falls; The dextrorotation adjusting screw(rod) 6 that turns right, the right side of force transducer 2 is by jack-up, the right adjusting screw(rod) 6 of inhour rotation, the right side of force transducer 2 falls, after the leftward position of load sensor 2 is adjusted, with left positioning and guiding nut 11 left adjusting screw(rod) 10 is locked in the fixed position, after the right positions of force transducer 2 is adjusted, right adjusting screw(rod) 6 is locked in the fixed position with right positioning and guiding nut 5.The simulated experiment frame face top board load determinator of this structure, volume is little, is applicable to that very the seam thickness of simulation is little, descending operation space-constrained position when doing the experiment of small scale analog simulation.
When using the utility model to carry out simulated experiment in the laboratory, 1 or 2 or a plurality of simulated experiment frame face top board load determinator are put into breadboard simulation getting working face, dextrorotation turn left adjusting screw(rod) 10 and right adjusting screw(rod) 6, force transducer 2 rises to coal face, continue dextrorotation turn left adjusting screw(rod) 10 and right adjusting screw(rod) 6 again, force transducer 2 is loaded, with left positioning and guiding nut 11 left adjusting screw(rod) 10 is locked in the fixed position, with right positioning and guiding nut 5 right adjusting screw(rod) 6 is locked in the fixed position, force transducer 2 converts received force signal to electric signal by 108 circuit-switched data acquisition systems 12, output to computing machine 13 by cable again, computing machine 13 calculates the power that force transducer 2 is born when loading according to the program of prior setting.
The elevating mechanism that present embodiment is installed on left bracing frame 9, right bracing frame 7 is electronic lifting jack, and the upper end of electronic lifting jack is positioned at the lower surface of force cell 2.The connecting relation of other parts and parts is identical with embodiment 1.
The elevating mechanism that present embodiment is installed on left bracing frame 9, right bracing frame 7 is a hydraulic jack, and the upper end of hydraulic jack is positioned at the lower surface of force cell 2.The connecting relation of other parts and parts is identical with embodiment 1.
Claims (3)
1. simulated experiment frame face top board load determinator, it is characterized in that: the left end at web joint (8) is provided with left bracing frame (9), right-hand member is provided with right bracing frame (7), the upper end of left side bracing frame (9) and right bracing frame (7) is provided with loading plate (3), the upper surface of loading plate (3) is provided with the force transducer (2) that links to each other with 108 circuit-switched data acquisition systems (12) by cable, 108 circuit-switched data acquisition systems (12) link to each other with computing machine (13) by cable, sensor (2) left end is provided with the left positioning and guiding bar (1) that inserts in loading plate (3) left end, right-hand member is provided with the right positioning and guiding bar (4) that inserts in loading plate (3) right-hand member, and left bracing frame (9) and right bracing frame (7) are provided with the elevating mechanism that its upper end is positioned at force transducer (2) lower surface.
2. according to the described simulated experiment frame of claim 1 face top board load determinator, it is characterized in that: said left bracing frame (9) and right bracing frame (7) are the U-shaped bracing frame.
3. according to the described simulated experiment frame of claim 1 face top board load determinator, it is characterized in that: said elevating mechanism is adjusting screw(rod) (6,10) or hydraulic jack or electronic lifting jack or mechanical screw jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201057610U CN201637522U (en) | 2010-01-29 | 2010-01-29 | Load measuring device for top plate of working face of analog experimental rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201057610U CN201637522U (en) | 2010-01-29 | 2010-01-29 | Load measuring device for top plate of working face of analog experimental rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637522U true CN201637522U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201057610U Expired - Fee Related CN201637522U (en) | 2010-01-29 | 2010-01-29 | Load measuring device for top plate of working face of analog experimental rack |
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| CN (1) | CN201637522U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890001A (en) * | 2012-09-21 | 2013-01-23 | 山西汾河焦煤股份有限公司回坡底煤矿 | Pneumatic landing leg type jumbolter detecting platform |
| CN102928573A (en) * | 2012-10-26 | 2013-02-13 | 中国地质大学（武汉） | Hydraulic adjusting loading device for self-weight type slide slope physical model experiment |
| CN104729777A (en) * | 2015-04-01 | 2015-06-24 | 太原理工大学 | Stress test device and method for analog simulation test |
| CN105118376A (en) * | 2015-10-09 | 2015-12-02 | 西安科技大学 | Two-dimensional analog simulation experiment device used for simulating big excavation space |
-
2010
- 2010-01-29 CN CN2010201057610U patent/CN201637522U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890001A (en) * | 2012-09-21 | 2013-01-23 | 山西汾河焦煤股份有限公司回坡底煤矿 | Pneumatic landing leg type jumbolter detecting platform |
| CN102890001B (en) * | 2012-09-21 | 2015-06-03 | 山西汾河焦煤股份有限公司回坡底煤矿 | Pneumatic landing leg type jumbolter detecting platform |
| CN102928573A (en) * | 2012-10-26 | 2013-02-13 | 中国地质大学（武汉） | Hydraulic adjusting loading device for self-weight type slide slope physical model experiment |
| CN104729777A (en) * | 2015-04-01 | 2015-06-24 | 太原理工大学 | Stress test device and method for analog simulation test |
| CN105118376A (en) * | 2015-10-09 | 2015-12-02 | 西安科技大学 | Two-dimensional analog simulation experiment device used for simulating big excavation space |
| CN105118376B (en) * | 2015-10-09 | 2018-02-09 | 西安科技大学 | One kind is used to simulate heavy excavation space two-dimensional analog simulation experimental device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20110129 |