CN114062641A - Excavation equipment for analog simulation test - Google Patents
Excavation equipment for analog simulation test Download PDFInfo
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- CN114062641A CN114062641A CN202010794637.8A CN202010794637A CN114062641A CN 114062641 A CN114062641 A CN 114062641A CN 202010794637 A CN202010794637 A CN 202010794637A CN 114062641 A CN114062641 A CN 114062641A
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 56
- 238000004088 simulation Methods 0.000 title claims abstract description 51
- 238000012360 testing method Methods 0.000 title abstract description 25
- 239000003245 coal Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000002699 waste material Substances 0.000 claims description 32
- 230000007246 mechanism Effects 0.000 claims description 27
- 238000000605 extraction Methods 0.000 claims description 15
- 238000012806 monitoring device Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000005094 computer simulation Methods 0.000 claims description 4
- 238000005065 mining Methods 0.000 abstract description 13
- 230000005540 biological transmission Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 14
- 239000002184 metal Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/222—Solid fuels, e.g. coal
Abstract
The invention discloses excavation equipment for a similar simulation test, which comprises: a shield device; a cutting device horizontally movably disposed on the shield device and adapted to cut a coal seam analog simulation material, at least a portion of the cutting device being shielded by the shield device; and the adjusting device is connected with the shield device and is used for adjusting the position of the shield device in the horizontal and vertical directions, so that the cutting device can cut the coal seam simulation materials at any position in the three-dimensional direction. The invention is mainly applied to a physical analog simulation test of mining engineering, can be used together with an analog simulation platform, simulates different mining heights, different positions, different propelling speeds and excavation distances by setting different excavation time and propelling length in a control program, and can improve the excavation efficiency and save the labor cost.
Description
Technical Field
The invention relates to the field of analog simulation tests, in particular to excavation equipment for the analog simulation tests.
Background
The development of the similar simulation test method has become an important research means in the mining field, and the similar simulation test method is widely applied to Germany, Poland, Japan, Australia, America and the like. Similar simulation test stands are established in the fifth and sixty years of the 20 th century in China, are used for scientific research of coal mining, occupy an important position, and mainly research the problems of the activity rule of overlying strata in the coal mining process, the interrelation between the mining process and the movement of the strata and the like from the macroscopic and qualitative angles.
The similar material excavation process is an important link of a similar simulation test, and mainly excavates the coal seam similar simulation material in the simulated coal seam. The existing excavation mode mainly adopts manual excavation or sequentially extracts pre-buried thin plates for replacing coal beds. The manual excavation has poor automation, continuity and controllability, is easy to cause artificial damage to a physical model top plate, cannot simulate the continuous mining process of a coal seam of a working face more truly, and has adverse effect on similar simulation results; the sequential extraction of pre-buried sheets in place of the coal seam does not allow for continuity and time effects of the propulsion process. If the coal seam is buried deeply, extraction is difficult, disturbance on the whole model is large, horizontal transverse stretching damage is easily caused to the top plate, the top plate material can be taken out in the extraction process, and controllability is poor.
Therefore, it is urgently needed to develop a movable automatic continuous excavation device suitable for the simulation test, so as to realize the automatic continuous excavation process of the coal seam in the simulation test and improve the accuracy of the simulation result.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides excavation equipment for a simulation test, which excavates a coal seam simulation material, is used for solving the problems of non-automaticity, non-continuity, uncontrollable excavation time and distance and the like in the excavation process of the existing physical simulation test, can realize the automatic continuous excavation process of the coal seam in the simulation test, and improves the accuracy of a simulation result.
The invention provides excavation equipment for a similar simulation test, which comprises:
a shield device;
a cutting device horizontally movably disposed on the shield device and adapted to cut a coal seam analog simulation material, at least a portion of the cutting device being shielded by the shield device;
and the adjusting device is connected with the shield device and is used for adjusting the position of the shield device in the horizontal and vertical directions, so that the cutting device can cut the coal seam simulation materials at any position in the three-dimensional direction.
Furthermore, a walking device connected with the cutting device is arranged on the shield device and used for enabling the cutting device to horizontally move under the shield of the shield device.
Furthermore, the cutting device comprises a spiral cutter head which is detachably mounted and a cutting motor which drives the spiral cutter head to rotate, and the cutting motor is connected to the walking device.
Furthermore, a walking track which enables the walking device to move along a straight line is further arranged on the shield device.
Further, adjusting device is including the first telescopic machanism, elevating system and the second telescopic machanism that lay from top to bottom in proper order, shield the device and connect on first telescopic machanism.
Furthermore, first telescopic machanism includes connecting rod, removal slider and first drive screw, the device that shields is connected with the removal slider through the connecting rod, it connects on first drive screw to remove the slider.
Further, elevating system includes the lifting support and the lift drive screw of arranging from top to bottom, first telescopic machanism installs on lifting support.
Further, the second telescopic mechanism comprises a moving platform and a second transmission screw rod, the lifting mechanism is installed on the moving platform, and the moving platform is connected to the second transmission screw rod.
Furthermore, a monitoring device for monitoring the excavation state in real time is arranged on the shielding device, and the monitoring device comprises a plurality of cameras arranged at intervals.
Furthermore, the shield device is also connected with a discharge device for discharging cutting waste, the discharge device comprises a vacuum pump, a waste bin and a waste extraction pipe, one end of the waste extraction pipe is connected with the waste bin, and the other end of the waste extraction pipe is connected with the shield device.
Compared with the prior art, the excavation equipment for the similar simulation test has the following advantages:
(1) the automatic continuous excavation of the cutting device along the trend of the working surface is realized, and the cutting device can cut coal seam similar simulation materials at any position in the three-dimensional direction;
(2) the cutting device is effectively protected by the shield device, so that the cutting device is prevented from being damaged in the excavation process;
(3) the positions of the shield device and the cutting device in the horizontal and vertical directions are adjusted through the adjusting device, so that the accurate control of different simulated coal seam positions, mining heights and excavation positions can be realized;
(4) the spiral cutter head can cut coal seam similar simulation materials during walking, so that the maneuverability and flexibility of the excavating device are improved;
(5) the efficiency can be improved by adopting the spiral cutter head for excavation, the excavated section is neat and uniform, and the disturbance and the damage to surrounding rock materials are small;
(6) the cutting waste can be discharged in time in the excavation process by using the discharging device, so that the influence of the accumulated waste on the normal operation of the cutting device is avoided;
(7) the transmission screw in the adjusting device can effectively improve the accuracy of the position adjustment of the spiral cutter head and effectively improve the accuracy of a similar simulation test result.
The invention is mainly applied to a physical analog simulation test of mining engineering, can be used together with an analog simulation platform, simulates different mining heights, different positions, different propelling speeds and excavation distances by setting different excavation time and propelling length in a control program, and can improve the excavation efficiency and save the labor cost.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 is a schematic front view of excavation equipment for a simulation test according to the present invention;
FIG. 2 is a schematic side view of the excavation equipment used in the simulation test according to the present invention;
FIG. 3 is a schematic top view of the excavation equipment used in the simulation test according to the present invention;
FIG. 4 is a schematic cross-sectional view of FIG. 1;
FIG. 5 is a schematic top view of the second telescoping mechanism of the present invention;
fig. 6 is a side view of the structure of fig. 5.
In the figure: 1-a spiral cutter head, 2-a cutting motor, 3-a shield device, 4-a camera, 5-a connecting rod, 6-a movable sliding block, 7-a first transmission screw rod, 8-a first servo motor, 9-a lifting bracket, 10-a lifting transmission screw rod, 11-a lifting servo motor, 12-a movable platform, 13-a second transmission screw rod, 14-a second servo motor, 15-a vacuum pump, 16-a waste bin, 17-a waste extraction pipe, 18-a walking track, 19-a metal shell, 20-a movable roller and 21-a sliding rod.
In the drawings, like parts are designated with like reference numerals, and the drawings are not to scale.
Detailed Description
In order to clearly illustrate the inventive concept of the present invention, the present invention is described below with reference to examples.
In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 4, the excavation equipment for the simulation modeling test provided by the present invention mainly includes a cutting device, a shield device, and an adjusting device, wherein the cutting device is horizontally movably disposed on the shield device 3 and is used for cutting the coal seam simulation modeling material, at least a part of the cutting device is shielded by the shield device 3 for protecting the cutting device during excavation, and the adjusting device is connected to the shield device 3 and is used for adjusting the position of the shield device 3 in the horizontal and vertical directions, so that the cutting device can cut the coal seam simulation modeling material at any position in the three-dimensional direction.
The cutting device comprises a spiral cutter head 1 which is detachably mounted and a cutting motor 2 which drives the spiral cutter head 1 to rotate, the cutting motor 2 is arranged in a shielding device 3 and is shielded and protected by the shielding device 3, the spiral cutter head 1 extends out of the shielding device 3 when the coal seam is excavated, and the whole cutting device can horizontally move on the shielding device 3 and is used for enabling the spiral cutter head 1 to cut the coal seam similar simulation materials in the walking process.
The spiral cutter head 1 can be replaced according to similar simulation materials of different coal beds, for example, the spiral cutter head 1 with different diameters or different materials can be replaced, and actual requirements in specific application can be met; the cutting motor 2 directly drives the spiral cutter head 1 to operate, so that the excavation efficiency of the spiral cutter head 1 is improved; the cutting device, particularly the cutting motor 2, is effectively protected by the shield device 3, so that the damage to the cutting motor 2 and a connecting shaft between the spiral cutter head 1 and the cutting motor 2 can be reduced, and the maintenance amount of a system is reduced; the cutting device (the cutting motor 2 and the spiral tool bit 1) can horizontally move along the extension direction of the shield device 3, and the spiral tool bit 1 can cut similar simulation materials of the coal bed in the walking process, so that the flexibility and the maneuverability of the excavation equipment are effectively ensured; the adjusting device can adjust the vertical height and the horizontal telescopic direction of the shield device 3, and the spiral cutter head 1 which can horizontally move on the shield device 3 is matched, so that the cutting device can accurately control the excavation position, and the accuracy of a similar simulation test result is improved.
Specifically, the shield device 3 in this embodiment is a steel structure that is arranged horizontally, and its inner cavity has a cutting motor 2, an accommodating space for the spiral cutter head 1, and a walking space. The cutting motor 2 and the spiral cutter head 1 are arranged in the horizontal moving direction of the shield device 3 and perpendicular to the horizontal stretching direction of the shield device 3 relative to the excavation equipment, and the cutting device can cut coal seam similar simulation materials at any position in the three-dimensional direction by matching with the adjustment of the shield device 3 in the vertical height and the horizontal stretching position of the shield device relative to the excavation equipment through the moving mode of the cutting device, so that the accuracy of a similar simulation test is improved.
In order to enable the cutting motor 2 and the screw head 1 to move horizontally on the shield device 3, a traveling device (not shown) connected to the cutting device is further provided on the shield device 3, and the traveling device can carry the cutting motor 2 and the screw head 1 to move horizontally along the extending direction of the shield device 3. Specifically, the cutting motor 2 is connected to the traveling device, and the traveling device drives the cutting motor 2 to move horizontally in the traveling space, so that the spiral cutter head 1 connected to the cutting motor 2 can cut the coal seam simulation material while traveling.
In order to ensure the accuracy of the movement of the cutting motor 2 and the spiral cutter head 1, a traveling track 18 which enables the traveling device to move along a straight line is further arranged on the shield device 3, the traveling device can be a sliding electric car which moves in the extending direction of the shield device 3, the cutting motor 2 and the spiral cutter head 1 are installed on the sliding electric car, and the traveling track 18 is matched with the sliding electric car to realize the accurate movement of the spiral cutter head 1 on the shield device 3.
The control of the shield device in different positions is explained below mainly with regard to the adjustment device.
The adjusting device in this embodiment includes a first telescoping mechanism, a lifting mechanism and a second telescoping mechanism, which are sequentially arranged from top to bottom, and the shield device 3 is connected to the first telescoping mechanism.
The first telescoping mechanism, the lifting mechanism and the second telescoping mechanism are connected up and down, and finally the position of the shield device 3 is adjusted through the first telescoping mechanism connected with the shield device 3. Specifically, the first telescopic mechanism comprises a connecting rod 5, a movable sliding block 6 and a first transmission screw 7, the shield device 3 is connected with the movable sliding block 6 through the connecting rod 5, and the movable sliding block 6 is connected to the first transmission screw 7. The movable sliding block 6 can be driven by the first transmission screw 7 to move in the horizontal direction, the power output of the first transmission screw 7 is completed by the first servo motor 8, the movable sliding block 6 can be moved back and forth under the control of the first servo motor 8, and then the connecting rod 5 fixedly connected with the movable sliding block 6 drives the shield device 3 to stretch in the horizontal direction, and the arrangement can realize that the shield device 3 stretches out and draws back in the first level relative to the excavation equipment.
The position of the shield device 3 in the height direction is adjusted by a lifting mechanism. The lifting mechanism in this embodiment includes a lifting support 9 and a lifting transmission screw 10, which are arranged up and down, the above-mentioned first telescopic mechanism is installed on the lifting support 9, and the lifting support 9 mainly plays a role in bearing and lifting. At the bottom of lifting support 9, vertically be connected with lift drive screw 10, lift drive screw 10's top meets with lifting support 9, and the bottom setting is on lift servo motor 11, through mutually supporting of lift drive screw 10 and lift servo motor 11, can drive shield device 3 through lifting support 9 and reciprocate, and then excavate the simulation coal seam of co-altitude not through installing spiral cutter head 1 in shield device 3.
Referring to fig. 5-6 in conjunction with fig. 4, the second telescoping mechanism includes a moving platform 12 and a second driving screw 13, the above-mentioned lifting mechanism is installed on the moving platform 12, and the moving platform 12 is connected to the second driving screw 13. Specifically, the mobile platform 12 and the second driving screw 13 are matched with each other, the mobile platform 12 can be driven by the second driving screw 13 to move in the horizontal direction, the power output of the second driving screw 13 is completed by the second servo motor 14, and the front and back displacement of the mobile platform 12 can be realized through the control of the second servo motor 14, so that the secondary extension and retraction of the shield device 3 can be indirectly realized.
And sliding rods 21 extending horizontally are respectively arranged on two sides of the second transmission screw 13 and penetrate through the moving platform 12, and the arrangement direction of the two sliding rods 21 is parallel to the extension direction of the second transmission screw 13. The sliding rod 21 is a limiting rod with a smooth surface, which can play a good role in limiting and fixing the moving platform 12, and the axial centers of the sliding rod 21 and the second transmission screw 13 are positioned on the same horizontal plane, so that the moving platform 12 does not deviate up and down along with the rotation of the second transmission screw 13; meanwhile, the sliding rods 21 on the two sides of the second driving screw 13 can also effectively share the weight of the upper structure of the second telescopic mechanism, so that the pressure on the second driving screw 13 is reduced, and the second driving screw 13 can more efficiently transmit the output power of the second servo motor 14 to the mobile platform 12.
Through the above setting mode, can realize the spiral tool bit to the excavation of simulation coal seam optional position on the stereotaxic direction, the at utmost has reduced the exploitation process to true coal seam, has effectively improved the accuracy of analog structure, and the change of spiral tool bit position specifically is implemented by drive screw, compares other nonlinear control modes, has control accurate, reliable and stable advantage, can greatly improve the accuracy of analog simulation result.
In order to facilitate the real-time monitoring of the excavation state of the helical cutter head 1, the monitoring device is arranged on the shield device 3 in the embodiment, and in order to improve the monitoring definition, the monitoring device needs to be installed at a position close to the helical cutter head 1. Specifically, monitoring device includes a plurality of observation cameras 4, can follow 3 horizontal migration of shield device based on helical cutter head 1, and a plurality of cameras 4 interval are installed on shield device 3, set up the interval and can carry out actual adjustment according to camera 4's control visual angle and monitoring range to conveniently obtain helical cutter head 1's real-time status.
In order to avoid the waste material after cutting from gathering and causing the blockage of the screw head 1, the material discharge on the working surface is carried out in a suction mode in the invention, and the discharge device for discharging the cutting waste material is connected to the shield device 3. The discharging device in the embodiment comprises a vacuum pump 15, a waste bin 16 and a waste extracting pipe 17, wherein the vacuum pump 15 is arranged on the waste bin 16, negative pressure is realized in the waste bin 16 through vacuumizing, the waste bin 16 is connected with the shielding device 3 through the waste extracting pipe 17, and the cut coal seam similar simulation materials are extracted through the negative pressure.
The waste extraction pipe 17 is a flexible pipe with good flexibility and certain mechanical strength, such as a PVC steel wire pipe, and one end of the waste extraction pipe is connected to the waste bin 16, and the other end is connected to the shield device 3. Through being close to spiral cutter head 1 position with the suction end, can be more thorough collect the waste material that cuts off in real time.
According to the invention, a protection device is arranged outside the adjusting device, the protection device is specifically a metal shell 19, the metal shell 19 coats the excavating equipment, particularly the adjusting device, and plays a good protection role, and the bottom of the metal shell 19 is provided with a movable roller 20, and the movable roller 20 can slide along a track on the ground, so that the free movement of the excavating equipment is realized.
It is important to point out that the method is applied to the excavation stage of the mining engineering similarity simulation test, the simulated mining process of the actual coal mining working face is realized by controlling the spiral cutter head excavation, supporting and protecting the shield device, pumping the cut coal seam similarity simulation material and the like through a program, the operation is simple, the excavation quality and flexibility are good, the secondary disturbance to the surrounding rock material is small, the excavation position is linearly controlled through the adjusting device, and the accuracy of the similarity simulation test result is improved.
It should be noted that the running gear installed in the shield device may also be in the form of a wheel tractor or a crawler carrier loader, etc., and the requirement for accurate guiding during movement of the cutting device needs to be met; the waste extraction pipe can also be a hose of other forms, so that the influence on suction force caused by bending when the waste extraction pipe is bent can be avoided, the suction end of the waste extraction pipe can also be connected to a cutting motor, waste can be sucked during cutting, and the like, and the description is omitted.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not intended to be limiting. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as within the scope of the invention.
Claims (10)
1. Excavation equipment for simulation modeling, comprising:
a shield device;
a cutting device horizontally movably disposed on the shield device and adapted to cut a coal seam analog simulation material, at least a portion of the cutting device being shielded by the shield device;
and the adjusting device is connected with the shield device and is used for adjusting the position of the shield device in the horizontal and vertical directions, so that the cutting device can cut the coal seam simulation materials at any position in the three-dimensional direction.
2. Excavation apparatus according to claim 1, wherein the shield device is provided with running means connected to the cutting device for enabling the cutting device to move horizontally under the shield of the shield device.
3. The excavation apparatus of claim 2, wherein the cutting device includes a detachably mounted screw head and a cutting motor for driving the screw head to rotate, the cutting motor being coupled to the traveling device.
4. The excavation apparatus of claim 3, wherein the shield device is further provided with a traveling rail that moves the traveling device in a straight line.
5. The excavation apparatus of any one of claims 1 to 4, wherein the adjustment device includes a first telescoping mechanism, a lifting mechanism, and a second telescoping mechanism arranged in sequence from top to bottom, and the shield device is connected to the first telescoping mechanism.
6. The excavation apparatus of claim 5, wherein the first telescoping mechanism comprises a connecting rod, a movable slide, and a first drive screw, and wherein the shield apparatus is coupled to the movable slide via the connecting rod, and wherein the movable slide is coupled to the first drive screw.
7. The excavation apparatus of claim 5, wherein the lifting mechanism includes a lifting support and a lifting drive screw arranged one above the other, and the first telescoping mechanism is mounted on the lifting support.
8. The excavation apparatus of claim 5, wherein the second telescoping mechanism comprises a moving platform, a second lead screw, and a slide bar, the lifting mechanism is mounted on the moving platform, the slide bar is disposed on two sides of the second lead screw in parallel, and the moving platform is connected to the second lead screw and the slide bar.
9. The excavation apparatus of claim 1, wherein the shield device is provided with a monitoring device for monitoring excavation conditions in real time, and the monitoring device comprises a plurality of cameras arranged at intervals.
10. The excavation apparatus of claim 1, wherein the shield device is further connected to a discharge device for discharging the cutting waste, the discharge device including a vacuum pump, a waste bin, and a waste extraction pipe, one end of the waste extraction pipe being connected to the waste bin, and the other end of the waste extraction pipe being connected to the shield device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010794637.8A CN114062641A (en) | 2020-08-10 | 2020-08-10 | Excavation equipment for analog simulation test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010794637.8A CN114062641A (en) | 2020-08-10 | 2020-08-10 | Excavation equipment for analog simulation test |
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| CN114062641A true CN114062641A (en) | 2022-02-18 |
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| CN202010794637.8A Pending CN114062641A (en) | 2020-08-10 | 2020-08-10 | Excavation equipment for analog simulation test |
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| CN104833569A (en) * | 2015-05-07 | 2015-08-12 | 中国人民解放军理工大学 | Excavating and unloading device suitable for geo-mechanical model experiment |
| CN105372409A (en) * | 2015-12-07 | 2016-03-02 | 太原理工大学 | Excavation apparatus for analog simulation test |
| CN106769127A (en) * | 2016-11-15 | 2017-05-31 | 重庆大学 | System and method is excavated in the three-dimensional analog simulation experiment of three-dimensional loading |
| CN107764657A (en) * | 2017-11-23 | 2018-03-06 | 中南大学 | Simulating two-dimensional loads the experimental rig and method of liquid nitrogen cooling mechanical equivalent of light excavation off-load |
| CN107976525A (en) * | 2017-11-22 | 2018-05-01 | 山东大学 | The accurate automatic excavating device of the physical experiments difference hole small cavern of type |
| CN109115996A (en) * | 2018-09-30 | 2019-01-01 | 太原理工大学 | A kind of excavating device for multi-angle roadway excavation in the similar simulation test of two dimension |
| CN109209368A (en) * | 2018-10-16 | 2019-01-15 | 中国神华能源股份有限公司 | Test tests coal cutting system with three-dimensional mining device people and three-dimensional mining device people |
| CN111236959A (en) * | 2020-03-20 | 2020-06-05 | 中铁工程装备集团有限公司 | Chain saw mesh cutting tunneling machine and construction method thereof |
-
2020
- 2020-08-10 CN CN202010794637.8A patent/CN114062641A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833569A (en) * | 2015-05-07 | 2015-08-12 | 中国人民解放军理工大学 | Excavating and unloading device suitable for geo-mechanical model experiment |
| CN105372409A (en) * | 2015-12-07 | 2016-03-02 | 太原理工大学 | Excavation apparatus for analog simulation test |
| CN106769127A (en) * | 2016-11-15 | 2017-05-31 | 重庆大学 | System and method is excavated in the three-dimensional analog simulation experiment of three-dimensional loading |
| CN107976525A (en) * | 2017-11-22 | 2018-05-01 | 山东大学 | The accurate automatic excavating device of the physical experiments difference hole small cavern of type |
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| CN109115996A (en) * | 2018-09-30 | 2019-01-01 | 太原理工大学 | A kind of excavating device for multi-angle roadway excavation in the similar simulation test of two dimension |
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