CN205642690U - Similar material analogue test in mine is with propping up a posture stress collection system from moving - Google Patents
Similar material analogue test in mine is with propping up a posture stress collection system from moving Download PDFInfo
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- CN205642690U CN205642690U CN201620410271.9U CN201620410271U CN205642690U CN 205642690 U CN205642690 U CN 205642690U CN 201620410271 U CN201620410271 U CN 201620410271U CN 205642690 U CN205642690 U CN 205642690U
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- straight tube
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Abstract
The utility model provides a similar material analogue test in mine is with propping up a posture stress collection system from moving, including roof and bottom plate, the roof bottom is fixed with the pillar, the bottom plate top is fixed with a straight section of thick bamboo, pillar and straight section of thick bamboo looks adaptation, just be equipped with the spring in the straight section of thick bamboo, the bottom of pillar is stretched into in the straight section of thick bamboo and is contacted with the spring top, the bottom plate outside is fixed with the stress scale that is used for the sign stress intensity that the roof receives. The utility model discloses a stress scale is observed and the measurement directly perceived of roof upper portion rock stress data can be realized, slide rail through falling on a handle and the base can be realized stress collection system's lift and remove the function to can adjust displacement by oneself. And the device's design is pressing close to real mine hydraulic support in appearance more, has improved simulation modeling experiment data acquisition's accuracy greatly.
Description
Technical field
This utility model belongs to mining engineering technical field, relates to a kind of mine similar material simulation experiment device, is specifically related to a kind of mine Equivalent Materials Testing automatic shifting stand formula stress harvester.
Background technology
Mine similar material simulation experiment is that true mine is scaled to physical model, on the premise of ensureing that model and all physical quantitys of prototype all follow certain proportion, ore bed in model is carried out " exploitation " by simulating actual conditions, and then simulation ore deposit pressure manifests process, gathers relevant experimental data.At present, mine similar material simulation experiment (hereinafter referred to as similarity simulation experiment) is the most ripe, and the simulation hydraulic support used in similarity simulation experiment is also gradually improved, and has the stress harvester being specially adapted for experiment.
Common simulation hydraulic support is passing ratio micro, and top board base uses Plate Welding, supporter or use lifting piston or uses pillar-bolt, reaches hydraulic support purpose from prototype to model conversation in analog simulation test.Common stress harvester is then to be connected with computer by stress harvester, and harvester is laid on below model support the purpose reaching to gather stress.In the past, similarity simulation experiment is simulated with coal seam just for overlying strata, seldom utilize simulation support that work surface is simulated supporting in simulation recovery process, if but do not use simulation support that the stress distribution situation verity of top board then can constitute certain interference, do not accomplish the effective analysis to work surface top movement of roof state.Even if using simulation support, owing to common Powered Support Model is that passing ratio micro simulates supporting effect, thus it is difficult to accomplish automatic moving, voluntarily fall frame and the Real-time Collection of stress data simultaneously.
Additionally, our discovery when carrying out similarity simulation experiment, if using merely stress harvester, can cause simulation recovery process in work surface owing to not having support to support, stress conduction is caused to show bigger difference to the gathered data of stress harvester of lower section with true ore deposit pressure, as used stress harvester according to simulation support assorted, the most with high costs, and can reduce and shelve speed, and common simulation support does not have concurrently and moves the function that frame gathers with stress voluntarily, it is delayed the progress of simulation exploitation, finally reduces experiment effect.
Utility model content
The problem that the purpose of this utility model is to exist for prior art, a kind of mine Equivalent Materials Testing automatic shifting stand formula stress harvester is provided, this device can realize lifting voluntarily, moving and the measurement directly perceived of stress data, and gathered stress data accuracy is high.
To this end, this utility model adopts the following technical scheme that
A kind of mine Equivalent Materials Testing automatic shifting stand formula stress harvester, including top board and base plate, it is fixed with pillar bottom described top board, described base plate top is fixed with straight tube, described pillar is suitable with straight tube, and it is provided with spring in described straight tube, in straight tube is stretched in the bottom of described pillar and contact with spring top；Described plate outer side is fixed with the stress rule for identifying stress intensity suffered by top board.
Further, described stress harvester also includes that base, described base plate are positioned at base, and described base plate is connected with base by slide rail, and described base plate can slide along the length direction of base.
Further, the rear end of described top board and base plate has been respectively articulated with caving shield and lower caving shield, and the other end of described upper caving shield and lower caving shield is hinged.
Further, described top board be respectively provided on two sides with baffle plate, be provided with stress number of degrees Warning Mark at corresponding stress rule outside described baffle plate.
Further, the front end of described top board connects forestope, and described top board is connected with forestope by fold mechanism.
Further, the side of described base has portrayed distance scale.
Further, described pillar is reducing cylinder, and first cylinder less by diameter and the second cylinder being relatively large in diameter are constituted, and described first cylinder fixes with top board, touch in described second cylinder is suitable with straight tube, and straight tube is stretched in the second cylinder bottom and with spring interface.
Further, described straight tube is provided with linear vertical slot, and the middle part of described vertical slot or lower position are provided with the translot connected with vertical slot, described vertical slot and the T-shaped setting of translot；The bottom of described second cylinder is provided with fall frame handle, described fall frame handle includes that a disk and suitable with straight tube is connected with disk and outwardly directed handle, described handle can be vertically movable along vertical slot or move horizontally along translot, and the bottom of described second cylinder contacts with disk.
Further, the top of described straight tube is provided with the annular collar for preventing the second cylinder from departing from, and the internal diameter of described annular collar is less than the diameter of the second cylinder.
Further, described pillar is four, and is arranged at symmetrically bottom top board.
This utility model has the following technical effect that the measurement directly perceived that can realize top board top rock stress data by observing stress rule；Lifting and the locomotive function of stress harvester can be realized by the slide rail on fall frame handle and base, and can be from Row sum-equal matrix displacement.And real mine hydraulic support is the most more pressed close in the design of this device, substantially increases the accuracy of similarity simulation experiment data acquisition.
Accompanying drawing explanation
Fig. 1 is structural front view of the present utility model；
Fig. 2 is structure left view of the present utility model；
Fig. 3 is the scale value schematic diagram of this utility model stress rule；
In figure, 1-top board, 2-base plate, 3-base, 4-the first cylinder, 5-the second cylinder, 6-straight tube, 7-spring, 8-annular collar, 9-vertical slot, 10-translot, 11-disk, 12-handle, 13-stress rule, 14-stress number of degrees Warning Mark, 15-baffle plate, 16-retainer ring, 17-slide rail, the upper caving shield of 18-, caving shield under 19-, 20-forestope, 21-distance scale.
Detailed description of the invention
As shown in Figure 1-2, a kind of mine Equivalent Materials Testing automatic shifting stand formula stress harvester, including top board 1, base plate 2 and base 3, is provided with four pillars being symmetrically set bottom top board 1, base plate 2 top is provided with the straight tube 6 corresponding with pillar, is provided with spring 7 in straight tube 6；Described pillar is reducing cylinder, first cylinder 4 less by diameter and the second cylinder 5 being relatively large in diameter are constituted, and wherein, the first cylinder 4 fixes with top board 1, in second cylinder 5 is suitable with straight tube 6, and straight tube 6 is stretched in the second cylinder 5 bottom and contact with spring 7；The top of straight tube 6 is provided with the annular collar 8 for preventing the second cylinder 5 from departing from, and the internal diameter of annular collar 8 is less than the diameter of the second cylinder 5.The stress rule 13 for identifying stress intensity suffered by top board 1 it is fixed with outside base plate 2；Top board 1 both sides are provided with baffle plate 15, are provided with retainer ring 16 inside baffle plate 15 at corresponding stress rule 13, in stress rule 13 is set in retainer ring 16 and can move up and down along retainer ring 16.It is provided with stress number of degrees Warning Mark 14 at corresponding stress rule 13 outside baffle plate 15.
Base plate 2 is positioned at base 3, and is connected with base 3 by slide rail 17；The side of base 3 has portrayed distance scale 21, for identifying the displacement of base plate 2.The rear end of top board 1 and base plate 2 has been respectively articulated with caving shield 18 and lower caving shield 19, and the other end of upper caving shield 18 and lower caving shield 19 is hinged.The front end of top board 1 connects forestope 20, and top board 1 is connected with forestope 20 by fold mechanism；This fold mechanism uses the springlock locking structure that common folding table/chair is used, and forestope 20 is opened when being the level of state, and forestope 20 is by locked fixing, and when unclamping the locking mechanism of fold mechanism, forestope 20 is returned to plumbness under gravity.
For realizing the fixing of stress harvester top board 1, straight tube 6 is provided with linear vertical slot 9, and the middle part of vertical slot 9 or lower position are provided with the translot 10 connected with vertical slot 9, vertical slot 9 and the T-shaped setting of translot 10；The bottom of the second cylinder 5 is provided with fall frame handle, this fall frame handle includes that a disk 11 and suitable with straight tube 6 is connected and outwardly directed handle 12 with disk 11, handle 12 can be vertically movable along vertical slot 9 or move horizontally along translot 10, and the bottom of the second cylinder 5 contacts with disk 11.
The mechanism that this utility model carries out stress collection and device moves and lifts is as follows:
First the spring 7 installed in straight tube 6 is carried out pressurization experiment, proportional relation according to spring 7 pressure Yu deflection, determine the spring 7 stress-strain diagram in fixed position, make the stress scale (see figure 3) of spring 7 according to stress-strain diagram, and make corresponding stress rule 13.Stress rule 13 is arranged on base plate 2 both sides, when top board 1 pressurized moves down, the stress value on stress number of degrees Warning Mark 14 indication stress rule 13 on 1 liang of side shield 15 of top board is stress intensity suffered by top board 1, namely stress intensity suffered by the rock of top board 1 top.
When stress harvester enters work surface, need first to carry out dropping frame and fixing, during concrete operations, the handle 12 vertical slot 9 in straight tube 6 can be moved down, and then drive top board 1 to move down, when handle 12 moves at translot 10, by handle 12 transverse shifting and make it in translot 10, thus realize dropping the fixing of frame handle, and then realize the fixing of top board 1.When the mobile stress harvester of needs, operation base plate 2 makes its slide rail 17 along base 3 move linearly, and the distance scale 21 outside base 3 can clearly identify the distance of base plate 2 motion, and then is capable of the accurate control that stress harvester moves.
Specific works process of the present utility model is as follows:
After having simulated experimental face open-off cut, top board 1 is moved down certain distance and is fixed by fall frame handle, then this utility model stress harvester inserted among open-off cut and carry out a liter frame operation, specifically by 12 groups, the handle of fall frame handle from translot 10, under spring 7 active force, make to move on top board 1 and connect reality with simulation rock stratum.Then forestope 20 is opened parallel with top board 1, play supporting effect.When simulating rock stratum and absciss layer occur and press phenomenon, there is the phenomenon that stress is concentrated in top board 1, and now top board 1 stress becomes big, spring 7 compressive deformation in straight tube 6, and top board 1 starts to move down, and the numerical value of its stress can be directly read by stress rule 13.When mobile stress harvester, forestope 20 is first made to regain so that it is vertical with rib, again the handle 12 of fall frame handle is moved down along vertical slot 9, handle 12 is made to realize the fixing, then along slide rail 17 movable base plate 2, it is achieved the movement of stress harvester of fall frame handle in entering translot 10.
Claims (10)
1. a mine Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterized in that, including top board and base plate, it is fixed with pillar bottom described top board, described base plate top is fixed with straight tube, described pillar is suitable with straight tube, and is provided with spring in described straight tube, in straight tube is stretched in the bottom of described pillar and contacts with spring top；Described plate outer side is fixed with the stress rule for identifying stress intensity suffered by top board.
A kind of mine the most according to claim 1 Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterized in that, also include that base, described base plate are positioned at base, and described base plate is connected with base by slide rail, described base plate can slide along the length direction of base.
A kind of mine the most according to claim 1 Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterized in that, the rear end of described top board and base plate has been respectively articulated with caving shield and lower caving shield, and the other end of described upper caving shield and lower caving shield is hinged.
A kind of mine the most according to claim 1 Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterised in that described top board be respectively provided on two sides with baffle plate, be provided with stress number of degrees Warning Mark at corresponding stress rule outside described baffle plate.
A kind of mine the most according to claim 1 Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterised in that the front end of described top board connects forestope, and described top board is connected with forestope by fold mechanism.
A kind of mine the most according to claim 2 Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterised in that the side of described base has portrayed distance scale.
A kind of mine the most according to claim 1 Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterized in that, described pillar is reducing cylinder, first cylinder less by diameter and the second cylinder being relatively large in diameter are constituted, described first cylinder fixes with top board, touch in described second cylinder is suitable with straight tube, and straight tube is stretched in the second cylinder bottom and with spring interface.
A kind of mine the most according to claim 7 Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterized in that, described straight tube is provided with linear vertical slot, and the middle part of described vertical slot or lower position are provided with the translot connected with vertical slot, described vertical slot and the T-shaped setting of translot；The bottom of described second cylinder is provided with fall frame handle, described fall frame handle includes that a disk and suitable with straight tube is connected with disk and outwardly directed handle, described handle can be vertically movable along vertical slot or move horizontally along translot, and the bottom of described second cylinder contacts with disk.
A kind of mine the most according to claim 7 Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterized in that, the top of described straight tube is provided with the annular collar for preventing the second cylinder from departing from, and the internal diameter of described annular collar is less than the diameter of the second cylinder.
A kind of mine the most according to claim 1 Equivalent Materials Testing automatic shifting stand formula stress harvester, it is characterised in that described pillar is four, and is arranged at symmetrically bottom top board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410271.9U CN205642690U (en) | 2016-05-09 | 2016-05-09 | Similar material analogue test in mine is with propping up a posture stress collection system from moving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410271.9U CN205642690U (en) | 2016-05-09 | 2016-05-09 | Similar material analogue test in mine is with propping up a posture stress collection system from moving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205642690U true CN205642690U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620410271.9U Expired - Fee Related CN205642690U (en) | 2016-05-09 | 2016-05-09 | Similar material analogue test in mine is with propping up a posture stress collection system from moving |
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| Country | Link |
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| CN (1) | CN205642690U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113870667A (en) * | 2021-09-30 | 2021-12-31 | 西安科技大学 | Novel similar material plane model frame of flexible size |
-
2016
- 2016-05-09 CN CN201620410271.9U patent/CN205642690U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113870667A (en) * | 2021-09-30 | 2021-12-31 | 西安科技大学 | Novel similar material plane model frame of flexible size |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20190509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |