CN202305378U - Bottom friction simulation experimental platform for realizing stepless speed change - Google Patents
Bottom friction simulation experimental platform for realizing stepless speed change Download PDFInfo
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- CN202305378U CN202305378U CN201120379778XU CN201120379778U CN202305378U CN 202305378 U CN202305378 U CN 202305378U CN 201120379778X U CN201120379778X U CN 201120379778XU CN 201120379778 U CN201120379778 U CN 201120379778U CN 202305378 U CN202305378 U CN 202305378U
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Abstract
The utility model relates to a bottom friction simulation experimental platform for realizing stepless speed change, which comprises a test bench frame, a model laying frame, an alternating current motor, a frequency converter and a stress signal monitoring computer, wherein the top of the test bench frame is connected with the model laying frame through bolts; rollers are fixed on the test bench frame on the left side and the right side of the model laying frame through roller fixing devices respectively; the alternating current motor, which is fixed on the bottom of the test bench frame, is arranged below the front end of a roller shaft of the roller on the right side; a transmission guide wheel is arranged on an output shaft at the front end of the alternating current motor and the roller shaft of the roller on the right side respectively; and the alternating current motor is connected with the frequency converter through wires. The bottom friction simulation experimental platform disclosed by the utility model can simulate different gravities by regulating a friction force in the experiment simulation progress, can monitor the stress change of models in the experimental progress in real time through a sensor, and can realize similar simulation experiments on surrounding rock deformation and stability of side slopes and underground chambers in laboratories.
Description
Technical field
The utility model relates to a kind of realization tribological modeling experiment porch of the infinite variable speed end.
Background technology
The analog simulation experiment is according to scaling law (geometric similarity, dynamic similarity, kinematic similitude), the physical simulation experiment of applications similar simulation material simulation DIFFERENT SOIL problem.Bottom friction testing belongs to a kind of of analog simulation.End rubbing manipulation is with the distribution of friction force on the frictional direction character similar with gravity field, utilizes the friction force between model and the bottom surface to come analogy model gravity.Thereby be implemented in stability, model stress distribution characteristics and the unstability characteristic etc. of laboratory simulation side slope, underground chamber etc.But frictional experiment instrument of the existing end can't be monitored model STRESS VARIATION in rotation speed change and demonstration and the experimentation in real time.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of end tribological modeling experiment porch simple in structure, reliable, easy to use.
Tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model; Comprise test bed framework, model laying framework, alternating current generator, frequency converter and stress signal monitoring computer; Framework is laid through the bolt link model in the top of said test bed framework, and the bottom that model is laid framework is provided with some strain gauges, and strain gauge connects data collecting card through circuit; Data collecting card is connected with said stress signal monitoring computer through circuit; Be fixed with cylinder through the cylinder stationary installation respectively on the test bed framework of the model laying framework left and right sides, connect belt between the cylinder, the below that is positioned at the drum shaft front end of right side cylinder is provided with the alternating current generator that is fixed on the test bed framework bottom; On the output shaft of alternating current generator front end and be positioned on the drum shaft of right side cylinder and be equipped with the transmission guide wheel; Connect driving-belt between the transmission guide wheel, alternating current generator connects frequency converter through circuit, and frequency converter connects power lead.
Tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model, said test bed framework fixedly is made up of through set bolt two frameworks up and down, is connected with the plurality of strengthening ribs plate between two frameworks up and down.
Tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model, said frequency converter also connects rotational speed governor through circuit, is connected in series between rotational speed governor, frequency converter and the alternating current generator.
Tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model, said frequency converter is through on the sidewall that is bolted to test bed framework.
Tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model, a said end that is positioned at the drum shaft on right side is provided with the rotating speed display.
Compared with prior art the beneficial effect of the utility model is: tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model increases a frequency converter in rotating with the alternating current generator driving belt; Can realize the stepless change of alternating current generator and belt speed through frequency converter, thereby evenly change friction force between belt and the experiment material; Increase a belt speed display; Lay one group of pressure transducer of installation on the underframe at model; Can in the simulated experiment process, simulate different big or small gravity through the size of regulating friction force; The friction force size can realize that numeral shows, and through sensor model STRESS VARIATION in the monitoring experiment process in real time; Can realize analog simulation experiment in the laboratory of side slope, underground chamber surrouding rock deformation and stability, be a kind of reliable, economic, simple laboratory facilities.
Description of drawings
Fig. 1 is the front view of the described realization of the utility model embodiment tribological modeling experiment porch of the infinite variable speed end;
Fig. 2 is the vertical view of the described realization of the utility model embodiment tribological modeling experiment porch of the infinite variable speed end.
Among the figure:
1, test bed framework; 2, model is laid framework; 3, alternating current generator; 4, frequency converter; 5, stress signal monitoring computer; 6, strain gauge; 7, data collecting card; 8, cylinder stationary installation; 9, cylinder; 10, belt; 11, drum shaft; 12, transmission guide wheel; 13, driving-belt; 14, power lead; 15, strengthen gusset; 16, rotational speed governor; 17, rotating speed display.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Shown in Fig. 1-3; A kind of realization tribological modeling experiment porch of the infinite variable speed end; Comprise test bed framework 1, model laying framework 2, alternating current generator 3, frequency converter 4 and stress signal monitoring computer 5, framework 2 is laid through the bolt link model in the top of said test bed framework 1, and the bottom that model is laid framework 2 is provided with some strain gauges 6; Strain gauge 6 connects data collecting card 7 through circuit; Data collecting card 7 is connected with said stress signal monitoring computer 5 through circuit, realizes the real-time monitoring to stress signal in the simulated experiment process, is fixed with cylinder 9 through cylinder stationary installation 8 respectively on the test bed framework 1 of model laying framework 2 left and right sides; Connect belt 10 between the cylinder 9; The below that is positioned at drum shaft 11 front ends of right side cylinder 9 is provided with the alternating current generator 3 that is fixed on test bed framework 1 bottom, on the output shaft of alternating current generator 3 front ends and be positioned on the drum shaft 11 of right side cylinder 9 and be equipped with transmission guide wheel 12, connects driving-belt 13 between the transmission guide wheel 12; Alternating current generator 3 connects frequency converter 4 through circuit, and frequency converter 4 connects power lead 14.
Tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model, said test bed framework 1 fixedly is made up of through set bolt two frameworks up and down, is connected with plurality of strengthening ribs plate 15 between two frameworks up and down.
Tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model, said frequency converter 4 also connects rotational speed governor 16 through circuit, is connected in series between rotational speed governor 16, frequency converter 4 and the alternating current generator 3.
Tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model, said frequency converter 4 is through on the sidewall that is bolted to test bed framework 1.
Tribological modeling experiment porch of the infinite variable speed end of the realization of the utility model, a said end that is positioned at the drum shaft 11 on right side is provided with rotating speed display 17, the rotating speed of observation cylinder 9, the size of control frictional resistance.
When the tribological modeling experiment porch is specifically worked at the realization of the utility model infinite variable speed end; According to similarity theory and side slope or geological condition of coal mine; The analog material for preparing corresponding lithology with sandy soil, cement, gypsum and water etc. according to a certain percentage respectively; Then the analog material level is laid on model and lays on the framework 2, can strain gauge 6 shops be embedded in the key position that will monitor in the model process of deployment, when the formation of similar material model through simulation side slope or chamber behind the certain hour.When band model satisfies the excavation condition; Thereby the speed of adjustment cylinder 9 produces friction force between belt 10 and analog material; Come the gravity in the analogy model with this, and implement the monitoring model key position STRESS VARIATION, surrouding rock deformation and unstability characteristic, study the destructive process of slope and land slide or down-hole chamber with this.The utility model can be tested as follows: glide plane and the angle and the failure mode of the stress distribution law of the side slope that 1) can simulate differing heights, different angles under action of gravity, crack evolution characteristic, prediction side slope; 2) can excavate the stability of country rock afterwards by the simulate formation chamber.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and modification, these improvement and modification also should be regarded as the protection domain of the utility model.
Claims (5)
1. realize tribological modeling experiment porch of the infinite variable speed end for one kind; Comprise test bed framework (1), model laying framework (2), alternating current generator (3), frequency converter (4) and stress signal monitoring computer (5); It is characterized in that: framework (2) is laid through the bolt link model in the top of said test bed framework (1); The bottom that model is laid framework (2) is provided with some strain gauges (6); Strain gauge (6) connects data collecting card (7) through circuit, and data collecting card (7) is connected with said stress signal monitoring computer (5) through circuit, is fixed with cylinder (9) through cylinder stationary installation (8) respectively on the test bed framework (1) of model laying framework (2) left and right sides; Connect belt (10) between the cylinder (9); The below that is positioned at drum shaft (11) front end of right side cylinder (9) is provided with the alternating current generator (3) that is fixed on test bed framework (1) bottom, on the output shaft of alternating current generator (3) front end and be positioned on the drum shaft (11) of right side cylinder (9) and be equipped with transmission guide wheel (12), connects driving-belt (13) between the transmission guide wheel (12); Alternating current generator (3) connects frequency converter (4) through circuit, and frequency converter (4) connects power lead (14).
2. realization according to claim 1 tribological modeling experiment porch of the infinite variable speed end is characterized in that: said test bed framework (1) fixedly is made up of through set bolt two frameworks up and down, is connected with plurality of strengthening ribs plate (15) between two frameworks up and down.
3. realization according to claim 1 tribological modeling experiment porch of the infinite variable speed end; It is characterized in that: said frequency converter (4) also connects rotational speed governor (16) through circuit, is connected in series between rotational speed governor (16), frequency converter (4) and the alternating current generator (3).
4. realization according to claim 3 tribological modeling experiment porch of the infinite variable speed end is characterized in that: said frequency converter (4) is through on the sidewall that is bolted to test bed framework (1).
5. realization according to claim 1 tribological modeling experiment porch of the infinite variable speed end is characterized in that: a said end that is positioned at the drum shaft (11) on right side is provided with rotating speed display (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120379778XU CN202305378U (en) | 2011-10-08 | 2011-10-08 | Bottom friction simulation experimental platform for realizing stepless speed change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120379778XU CN202305378U (en) | 2011-10-08 | 2011-10-08 | Bottom friction simulation experimental platform for realizing stepless speed change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305378U true CN202305378U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120379778XU Expired - Fee Related CN202305378U (en) | 2011-10-08 | 2011-10-08 | Bottom friction simulation experimental platform for realizing stepless speed change |
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| Country | Link |
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| CN (1) | CN202305378U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019987A (en) * | 2014-06-12 | 2014-09-03 | 中国矿业大学 | Dynamic friction transmission testing device and method of mining conveyor belt |
| CN105675408A (en) * | 2016-03-07 | 2016-06-15 | 中国矿业大学(北京) | Side slope three-dimensional bottom friction testing device |
| CN107843447A (en) * | 2017-12-05 | 2018-03-27 | 中国矿业大学(北京) | A kind of block bulk material slope stability simulation test device and test method |
| CN107907424A (en) * | 2017-12-18 | 2018-04-13 | 中国地质大学（武汉） | A kind of more of large scale Rock And Soil monitors servo pressurization bottom friction testing system in real time |
| CN109115612A (en) * | 2018-10-31 | 2019-01-01 | 成都理工大学 | Rub physical type rock landslip pilot system |
| CN110887954A (en) * | 2019-12-04 | 2020-03-17 | 中国地质科学院岩溶地质研究所 | Physical simulation experiment device and method capable of controlling soil cave forming process |
-
2011
- 2011-10-08 CN CN201120379778XU patent/CN202305378U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019987A (en) * | 2014-06-12 | 2014-09-03 | 中国矿业大学 | Dynamic friction transmission testing device and method of mining conveyor belt |
| CN105675408A (en) * | 2016-03-07 | 2016-06-15 | 中国矿业大学(北京) | Side slope three-dimensional bottom friction testing device |
| CN107843447A (en) * | 2017-12-05 | 2018-03-27 | 中国矿业大学(北京) | A kind of block bulk material slope stability simulation test device and test method |
| CN107907424A (en) * | 2017-12-18 | 2018-04-13 | 中国地质大学（武汉） | A kind of more of large scale Rock And Soil monitors servo pressurization bottom friction testing system in real time |
| CN109115612A (en) * | 2018-10-31 | 2019-01-01 | 成都理工大学 | Rub physical type rock landslip pilot system |
| CN109115612B (en) * | 2018-10-31 | 2023-08-15 | 成都理工大学 | Friction physical force type rock landslide test system |
| CN110887954A (en) * | 2019-12-04 | 2020-03-17 | 中国地质科学院岩溶地质研究所 | Physical simulation experiment device and method capable of controlling soil cave forming process |
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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: 20120704 Termination date: 20121008 |