CN202420725U - Dynamometry support model for physical similarity simulation experiment - Google Patents
Dynamometry support model for physical similarity simulation experiment Download PDFInfo
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- CN202420725U CN202420725U CN2012200133599U CN201220013359U CN202420725U CN 202420725 U CN202420725 U CN 202420725U CN 2012200133599 U CN2012200133599 U CN 2012200133599U CN 201220013359 U CN201220013359 U CN 201220013359U CN 202420725 U CN202420725 U CN 202420725U
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Abstract
The utility model discloses a dynamometry support model for a physical similarity simulation experiment. The dynamometry support model comprises a support base, a top beam, a plurality of upright columns, a caving shield, a tail beam, a base lateral sensor, a caving shield lateral sensor, a top beam lateral sensor, a plurality of upright column load sensors and a data acquiring and testing system acquiring and analyzing signals detected by the sensors, height adjusting devices are arranged on the upright columns, the top beam, the caving shield and the tail beam are integrally assembled via a height adjusting mechanism, and the height adjusting devices and the height adjusting mechanism form a height adjusting system for adjusting the supporting height of the top beam. The dynamometry support model for the physical similarity simulation experiment is reasonable in structural design, simple and convenient to use and operate and fine in use effect, the height of a support is adjusted conveniently, a working face roof can be supported, and work resistance of the support can be accurately measured in real time.
Description
Technical field
The utility model relates to a kind of dynamometry support model, especially relates to a kind of dynamometry support model that is used for the physical similarity simulated experiment.
Background technology
The simulated experiment of mining physical similarity is to utilize analog material; According to parameters such as on-the-spot geologic information, coal rock layer histogram and coal petrography physical mechanicses, the field engineering research object is become empirical model according to certain ratio contraction, more all kinds of engineerings of excavation on model; Like mine working and chamber, longwell stope etc.; Through simulation, observe and mechanics phenomenons such as the distortion of research engineering country rock body, mobile and destruction, and act on the power on the supporting construction engineering process.
Utilize similar material model to study the migration rule and the force piece load of overlying strata in different angle (0 °～55 °) the working face of coal seam recovery process in the laboratory, on-the-spot support type selecting and supporting resistance confirmed to have directive significance.The support model that in simulated experiment in the past, also has some to form, but except face roof is had the supporting role, the working resistance of measurement bracket real-time and accurately by rational ratio of similitude contraction.
The utility model content
The utility model technical matters to be solved is to above-mentioned deficiency of the prior art; A kind of dynamometry support model that is used for the physical similarity simulated experiment is provided; Its reasonable in design, use is easy and simple to handle, support height is easy to adjust and result of use good; Can not only support face roof, and the working resistance of measurement bracket real-time and accurately.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of dynamometry support model that is used for the physical similarity simulated experiment; It is characterized in that: comprise be level to the bracket base of laying, above the bracket base and be level to the back timber of laying, be supported in many root posts between bracket base and the back timber, be laid in back timber after between the rearward end of caving shield, the bottom that is laid in caving shield and bracket base below the skew back tail boom, be laid in the bracket base sidepiece and to bracket base on the base side direction sensor that detects in real time of the side-thrust of being born, be laid in the caving shield sidepiece and to caving shield on the caving shield side direction sensor that detects in real time of the side-thrust of being born, be laid in the back timber sidepiece and to back timber on the back timber side direction sensor that detects in real time of the side-thrust of being born, be laid on the many said columns respectively and a plurality of column load transducers that the load that is born on to institute's laying column detects in real time and the data acquisition and the test macro that base side direction sensor, caving shield side direction sensor, back timber side direction sensor and the real-time institute of a plurality of said column load transducers detection signal are carried out synchronous acquisition and analyzing and processing; Many said columns all are parallel laying, and said base side direction sensor, caving shield side direction sensor, back timber side direction sensor and a plurality of said column load transducer all are electrically connected with data acquisition and test macro; Be provided with arrangement for adjusting height on the many said columns, and the structure of many said columns is all identical with size; Be assembled into one through height adjustment mechanism between said back timber, caving shield and the tail boom, and said arrangement for adjusting height and said height adjustment mechanism are formed the high speed regulating system that the bearing height of back timber is regulated.
Above-mentioned a kind of dynamometry support model that is used for the physical similarity simulated experiment; It is characterized in that: the four-bar mechanism of said height adjustment mechanism for forming by connecting rod one, connecting rod two, connecting rod three and connecting rod four; Said connecting rod one is installed on the tail boom and it is parallel laying with tail boom; Said connecting rod two is installed on the caving shield and it is parallel laying with caving shield; Said connecting rod three is installed on the back timber and it is parallel laying with back timber; Be connected in hinged way between rearward end and its upper end that the bottom of said connecting rod one is installed in bracket base in hinged way and the bottom of said connecting rod two, be connected in hinged way between the rearward end of the upper end of said connecting rod two and said connecting rod three, and the upper and lower end parts of said connecting rod four be installed in said connecting rod two rear sides and bracket base rear side respectively in hinged way.
Above-mentioned a kind of dynamometry support model that is used for the physical similarity simulated experiment is characterized in that: be connected through the adjustment leading screw between the upper end of said column and the back timber bottom, and its bottom is installed on the bracket base in hinged way.
Above-mentioned a kind of dynamometry support model that is used for the physical similarity simulated experiment is characterized in that: said arrangement for adjusting height is the adjustment nut that is installed on the adjustment leading screw and the distance between bottom said column upper end and the back timber is adjusted.
Above-mentioned a kind of dynamometry support model that is used for the physical similarity simulated experiment is characterized in that: the corresponding inner thread sleeve that supplies the adjustment leading screw to install that is provided with in the upper end of said column and/or back timber bottom.
Above-mentioned a kind of dynamometry support model that is used for the physical similarity simulated experiment is characterized in that: many said columns, caving shield and tail booms all are and are tilted to laying.
Above-mentioned a kind of dynamometry support model that is used for the physical similarity simulated experiment, it is characterized in that: the quantity of said column is two, and two said columns are respectively symmetry and are laid in left column one and right column one between bracket base and the back timber; The quantity of said column load transducer is two.
Above-mentioned a kind of dynamometry support model that is used for the physical similarity simulated experiment; It is characterized in that: the quantity of said column is four; And four said columns are respectively left column two, right column two, left column three and right column three; Said left column two and said right column two symmetries are laid between bracket base and the back timber, and left column three and said right column three symmetries are laid between bracket base and the back timber; The quantity of said column load transducer is four.
Above-mentioned a kind of dynamometry support model that is used for the physical similarity simulated experiment, it is characterized in that: said left column three is laid in the dead astern of left column two, and said right column three is laid in the dead astern of said right column two.
Above-mentioned a kind of dynamometry support model that is used for the physical similarity simulated experiment is characterized in that: all be electrically connected through data line between said base side direction sensor, caving shield side direction sensor, back timber side direction sensor and a plurality of said column load transducer and data acquisition and the test macro.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design, processing and fabricating and easy accessibility and input cost are low.
2, use is easy and simple to handle, and support height is easy to adjust.
3, result of use is good; Surface structure and size according to on-the-spot support; On-the-spot support is formed the support model that the utility model adopts in 1: 20 ratio contraction; It not only satisfies the similar of size, but also similar between the stiffness and strength, working resistance of support that satisfy timbering material and the on-the-spot support, it can solve experiment medium-height trestle working resistance, back timber side-thrust, caving shield side-thrust and a base thruster force measurement difficult problem preferably.
4, the scope of application is wider; Matching with the post adjustment nut through four-bar mechanism, bearing height to support carries out steadily, flexible; The adjustable extent of stent support height is 120mm～150mm; According to the geometric similarity relation, be applicable to the different angle working face of coal seam of height of mining at 2.4m～3.0m.
In sum, the utility model reasonable in design, use is easy and simple to handle, support height is easy to adjust and result of use good, can not only support face roof, and the working resistance of measurement bracket real-time and accurately.
Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the utility model.
Fig. 2 is the structural representation of second kind of embodiment of the utility model.
Description of reference numerals:
The 1-bracket base; The 2-back timber; The 3-caving shield;
The 4-tail boom; 5-base side direction sensor; 6-caving shield side direction sensor;
7-back timber side direction sensor; 8-column load transducer; 9-data acquisition and test macro;
The 10-data line; 11-1-left column one; 11-2-left column two;
11-3-left column three; 12-adjusts leading screw; 13-adjusts nut;
The 14-four-bar mechanism.
Embodiment
As shown in Figure 1; The utility model comprise be level to the bracket base of laying 1, above the bracket base 1 and be level to the back timber of laying 2, be supported in many root posts between bracket base 1 and the back timber 2, be laid in back timber 2 afterwards the tail boom 4 between the rearward end of caving shield 3, the bottom that is laid in caving shield 3 and the bracket base 1 below the skew backs, be laid in bracket base 1 sidepiece and to bracket base 1 on the base side direction sensor 5 that detects in real time of the side-thrust of being born, be laid in caving shield 3 sidepieces and to caving shield 3 on the caving shield side direction sensor 6 that detects in real time of the side-thrust of being born, be laid in back timber 4 sidepieces and to back timber 4 on the back timber side direction sensor 7 that detects in real time of the side-thrust of being born, be laid on the many said columns respectively and a plurality of column load transducers 8 that the load that is born on to institute's laying column detects in real time and the data acquisition and the test macro 9 that base side direction sensor 5, caving shield side direction sensor 6, back timber side direction sensor 7 and a plurality of said column load transducer 8 real-time institute detection signals are carried out synchronous acquisition and analyzing and processing; Many said columns all are parallel laying, and said base side direction sensor 5, caving shield side direction sensor 6, back timber side direction sensor 7 and a plurality of said column load transducer 8 all are electrically connected with data acquisition and test macro 9.Be provided with arrangement for adjusting height on the many said columns, and the structure of many said columns is all identical with size.Be assembled into one through height adjustment mechanism between said back timber 2, caving shield 3 and the tail boom 4, and said arrangement for adjusting height and said height adjustment mechanism are formed the high speed regulating system that the bearing height of back timber 2 is regulated.
In the present embodiment; Said height adjustment mechanism is the four-bar mechanism of being made up of connecting rod one, connecting rod two, connecting rod three and connecting rod four 14; Said connecting rod one is installed on the tail boom 4 and it is parallel laying with tail boom 4; Said connecting rod two is installed on the caving shield 3 and it is parallel laying with caving shield 3; Said connecting rod three is installed on the back timber 2 and it is parallel laying with back timber 2; Be connected in hinged way between rearward end and its upper end that the bottom of said connecting rod one is installed in bracket base 1 in hinged way and the bottom of said connecting rod two, be connected in hinged way between the rearward end of the upper end of said connecting rod two and said connecting rod three, and the upper and lower end parts of said connecting rod four be installed in said connecting rod two rear sides and bracket base 1 rear side respectively in hinged way.
In the present embodiment, be connected through adjustment leading screw 12 between the upper end of said column and back timber 2 bottoms, and its bottom is installed on the bracket base 1 in hinged way.Said arrangement for adjusting height is to be installed on the adjustment leading screw 12 and the adjustment nut 13 that the distance between said column upper end and back timber 2 bottoms is adjusted.Correspondingly, the upper end of said column and/or back timber 2 bottom correspondences are provided with the inner thread sleeve that supplies adjustment leading screw 12 to install.In the actual use, also can adopt the arrangement for adjusting height of other type.
The actual laying when installing, many said columns, caving shield 3 and tail booms 4 all are and are tilted to laying.In the present embodiment, when actual installation was made, said bracket base 1, back timber 2, many said columns and tail boom 4 all adopted gold-plated iron and steel skin to process.
In the present embodiment, the quantity of said column is two, and two said columns are respectively symmetry and are laid in left column one 11-1 and right column one between bracket base 1 and the back timber 2; The quantity of said column load transducer 8 is two.
During actual the use, can be according to concrete needs, the quantity of said column is adjusted accordingly.
In the present embodiment, during physical cabling, all be electrically connected between said base side direction sensor 5, caving shield side direction sensor 6, back timber side direction sensor 7 and a plurality of said column load transducer 8 and data acquisition and the test macro 9 through data line 10.Said base side direction sensor 5, caving shield side direction sensor 6, back timber side direction sensor 7 and a plurality of said column load transducer 8 are resistance strain type sensor.
In the present embodiment, data acquisition of being adopted and test macro 9 are 108 tunnel calculation of pressure machine data acquisition systems.
Adopt the utility model when carrying out the analog simulation experiment, drive back timber 2, four-bar mechanism 14, caving shield 3 and 4 pairs of support heights of tail boom through adjustment nut set on left column one 11-1 and the right column one 13 and regulate.During actual the use; Said base side direction sensor 5, caving shield side direction sensor 6, back timber side direction sensor 7 and a plurality of said column load transducer 8 transfer to data acquisition and test macro 9 with institute's detection signal, and data acquisition and test macro 9 demonstrate the stressing conditions of the utility model according to the stress-strain regression equation of having demarcated.
To sum up; When actual installation is laid; Lateral wall at said back timber 2, caving shield 3, tail boom 4 and two root posts is installed resistance strain type sensor respectively; Wherein the drag overall of back timber 2 is 30kg, and the range of the resistance strain type sensor of laying on two root posts (being column load transducer 8) is 15kg, and base side direction sensor 5, caving shield side direction sensor 6 and back timber side direction sensor 7 range be 10kg.After the load that receives superincumbent stratum; Each resistance strain type sensor can be measured the size of the suffered magnitude of load of the utility model and back timber side-thrust, caving shield side-thrust and base side-thrust in real time; Reach the purpose of measurement bracket model working resistance; Through converting, calculate actual working resistance again when fore-stock.
As shown in Figure 2; In the present embodiment; Different with embodiment 1 is: the quantity of said column is four; And four said columns are respectively left column two 11-2, right column two, left column three 11-3 and right column three, and said left column two 11-2 and said right column two symmetries are laid between bracket base 1 and the back timber 2, and left column three 11-3 and said right column three symmetries are laid between bracket base 1 and the back timber 2; The quantity of said column load transducer 8 is four.
The actual laying when installing, said left column three 11-3 are laid in the dead astern of left column two 11-2, and said right column three is laid in the dead astern of said right column two, and the range that four said columns are attend institute's laying column load transducer 8 is 7.5kg.
In the present embodiment, remainder structure, annexation and principle of work are all identical with embodiment 1.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technical scheme according to the utility model technical spirit.
Claims (10)
1. dynamometry support model that is used for the physical similarity simulated experiment; It is characterized in that: comprise be level to the bracket base of laying (1), be positioned at bracket base (1) top and be level to the back timber of laying (2), be supported in many root posts between bracket base (1) and the back timber (2), be laid in tail boom (4) between the rearward end of caving shield (3), the bottom that is laid in caving shield (3) and bracket base (1) of skew back below, back timber (2) back, be laid in bracket base (1) sidepiece and to bracket base (1) on the base side direction sensor (5) that detects in real time of the side-thrust of being born, be laid in caving shield (3) sidepiece and to caving shield (3) on the caving shield side direction sensor (6) that detects in real time of the side-thrust of being born, be laid in back timber (4) sidepiece and to back timber (4) on the back timber side direction sensor (7) that detects in real time of the side-thrust of being born, be laid on the many said columns respectively and a plurality of column load transducers (8) that the load that is born on to institute's laying column detects in real time and the data acquisition and the test macro (9) that the real-time institute of base side direction sensor (5), caving shield side direction sensor (6), back timber side direction sensor (7) and a plurality of said column load transducers (8) detection signal are carried out synchronous acquisition and analyzing and processing; Many said columns all are parallel laying, and said base side direction sensor (5), caving shield side direction sensor (6), back timber side direction sensor (7) and a plurality of said column load transducers (8) all are electrically connected with data acquisition and test macro (9); Be provided with arrangement for adjusting height on the many said columns, and the structure of many said columns is all identical with size; Be assembled into one through height adjustment mechanism between said back timber (2), caving shield (3) and the tail boom (4), and said arrangement for adjusting height and said height adjustment mechanism are formed the high speed regulating system that the bearing height of back timber (2) is regulated.
2. according to the described a kind of dynamometry support model that is used for the physical similarity simulated experiment of claim 1; It is characterized in that: the four-bar mechanism (14) of said height adjustment mechanism for forming by connecting rod one, connecting rod two, connecting rod three and connecting rod four; Said connecting rod one is installed in that tail boom (4) is gone up and it is parallel laying with tail boom (4); Said connecting rod two is installed in that caving shield (3) is gone up and it is parallel laying with caving shield (3); Said connecting rod three is installed in that back timber (2) is gone up and it is parallel laying with back timber (2); Be connected in hinged way between rearward end and its upper end that the bottom of said connecting rod one is installed in bracket base (1) in hinged way and the bottom of said connecting rod two; Be connected in hinged way between the rearward end of the upper end of said connecting rod two and said connecting rod three, and the upper and lower end parts of said connecting rod four is installed in said connecting rod two rear sides and bracket base (1) rear side respectively in hinged way.
3. according to claim 1 or 2 described a kind of dynamometry support models that are used for the physical similarity simulated experiment; It is characterized in that: be connected through adjusting leading screw (12) between the upper end of said column and back timber (2) bottom, and its bottom is installed on the bracket base (1) in hinged way.
4. according to the described a kind of dynamometry support model that is used for the physical similarity simulated experiment of claim 3, it is characterized in that: the adjustment nut (13) of said arrangement for adjusting height for being installed in adjustment leading screw (12) and going up and the distance between said column upper end is bottom back timber (2) being adjusted.
5. according to the described a kind of dynamometry support model that is used for the physical similarity simulated experiment of claim 4, it is characterized in that: the upper end of said column and/or back timber (2) bottom correspondence is provided with the inner thread sleeve that supplies adjustment leading screw (12) to install.
6. according to claim 1 or 2 described a kind of dynamometry support models that are used for the physical similarity simulated experiment, it is characterized in that: many said columns, caving shield (3) and tail booms (4) all are and are tilted to laying.
7. according to claim 1 or 2 described a kind of dynamometry support models that are used for the physical similarity simulated experiment; It is characterized in that: the quantity of said column is two, and two said columns are respectively symmetry and are laid in left column one (11-1) and right column one between bracket base (1) and the back timber (2); The quantity of said column load transducer (8) is two.
8. according to claim 1 or 2 described a kind of dynamometry support models that are used for the physical similarity simulated experiment; It is characterized in that: the quantity of said column is four; And four said columns are respectively left column two (11-2), right column two, left column three (11-3) and right column three; Said left column two (11-2) and said right column two symmetries are laid between bracket base (1) and the back timber (2), and left column three (11-3) and said right column three symmetries are laid between bracket base (1) and the back timber (2); The quantity of said column load transducer (8) is four.
9. according to the described a kind of dynamometry support model that is used for the physical similarity simulated experiment of claim 8; It is characterized in that: said left column three (11-3) is laid in the dead astern of left column two (11-2), and said right column three is laid in the dead astern of said right column two.
10. according to claim 1 or 2 described a kind of dynamometry support models that are used for the physical similarity simulated experiment, it is characterized in that: all be electrically connected between said base side direction sensor (5), caving shield side direction sensor (6), back timber side direction sensor (7) and a plurality of said column load transducers (8) and data acquisition and the test macro (9) through data line (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200133599U CN202420725U (en) | 2012-01-12 | 2012-01-12 | Dynamometry support model for physical similarity simulation experiment |
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| CN2012200133599U CN202420725U (en) | 2012-01-12 | 2012-01-12 | Dynamometry support model for physical similarity simulation experiment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866032A (en) * | 2012-09-27 | 2013-01-09 | 安徽理工大学 | Similar material simulation test system |
| CN103439029A (en) * | 2013-09-11 | 2013-12-11 | 南京工业大学 | Adjustable fixing support of steel structure residual stress detection DIC system |
| CN104458064A (en) * | 2014-11-13 | 2015-03-25 | 中国矿业大学 | Analog simulation pneumatic support system for mine ground pressure and control method |
| CN104458534A (en) * | 2014-12-10 | 2015-03-25 | 西安科技大学 | Simulation test device and simulation test method for coal measure strata fracture seepage under loading and unloading conditions |
| CN105484783A (en) * | 2015-12-04 | 2016-04-13 | 西安科技大学 | Parallelogram hydraulic support suitable for large-dip-angle coal-seam long-wall false dipping working face |
| CN105781602A (en) * | 2016-03-18 | 2016-07-20 | 西安科技大学 | Simulating hydraulic support applicable to coal face |
| CN109707418A (en) * | 2019-03-08 | 2019-05-03 | 安徽理工大学 | Mine presses the simulation bracket of similarity simulation experiment measurement roof pressure |
| CN110514804A (en) * | 2019-08-30 | 2019-11-29 | 西安科技大学 | A kind of Seam Mining physical simulation experiment filling device and packing method |
| CN111691909A (en) * | 2020-06-18 | 2020-09-22 | 北京天地玛珂电液控制***有限公司 | Hydraulic support backpressure monitoring system and method |
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2012
- 2012-01-12 CN CN2012200133599U patent/CN202420725U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866032A (en) * | 2012-09-27 | 2013-01-09 | 安徽理工大学 | Similar material simulation test system |
| CN102866032B (en) * | 2012-09-27 | 2016-01-27 | 安徽理工大学 | similar material simulation test system |
| CN103439029A (en) * | 2013-09-11 | 2013-12-11 | 南京工业大学 | Adjustable fixing support of steel structure residual stress detection DIC system |
| CN103439029B (en) * | 2013-09-11 | 2015-07-15 | 南京工业大学 | Adjustable fixing support of steel structure residual stress detection DIC system |
| CN104458064A (en) * | 2014-11-13 | 2015-03-25 | 中国矿业大学 | Analog simulation pneumatic support system for mine ground pressure and control method |
| CN104458534A (en) * | 2014-12-10 | 2015-03-25 | 西安科技大学 | Simulation test device and simulation test method for coal measure strata fracture seepage under loading and unloading conditions |
| CN105484783A (en) * | 2015-12-04 | 2016-04-13 | 西安科技大学 | Parallelogram hydraulic support suitable for large-dip-angle coal-seam long-wall false dipping working face |
| CN105781602A (en) * | 2016-03-18 | 2016-07-20 | 西安科技大学 | Simulating hydraulic support applicable to coal face |
| CN105781602B (en) * | 2016-03-18 | 2017-03-15 | 西安科技大学 | A kind of simulation hydraulic support that is applicable to coal-face |
| CN109707418A (en) * | 2019-03-08 | 2019-05-03 | 安徽理工大学 | Mine presses the simulation bracket of similarity simulation experiment measurement roof pressure |
| CN110514804A (en) * | 2019-08-30 | 2019-11-29 | 西安科技大学 | A kind of Seam Mining physical simulation experiment filling device and packing method |
| CN111691909A (en) * | 2020-06-18 | 2020-09-22 | 北京天地玛珂电液控制***有限公司 | Hydraulic support backpressure monitoring system and method |
| CN111691909B (en) * | 2020-06-18 | 2022-04-05 | 北京天玛智控科技股份有限公司 | Hydraulic support backpressure monitoring system and method |
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