CN210858747U - Coal mine tunnel supporting device - Google Patents
Coal mine tunnel supporting device Download PDFInfo
- Publication number
- CN210858747U CN210858747U CN201922082972.0U CN201922082972U CN210858747U CN 210858747 U CN210858747 U CN 210858747U CN 201922082972 U CN201922082972 U CN 201922082972U CN 210858747 U CN210858747 U CN 210858747U
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- Prior art keywords
- supporting
- roadway
- plate
- coal mine
- connecting column
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Abstract
The utility model relates to a coal mine tunnel supporting device, which effectively solves the problems that the existing coal mine tunnel has poor supporting effect when supporting and can not support the tunnel side wall; the technical scheme comprises the following steps: this coal mine tunnel supporting device includes strutting arrangement and collateral branch strutting arrangement, goes up strutting arrangement and realizes the support to the tunnel roof to on going up strutting arrangement and will receiving the pressure part of tunnel roof and act on the collateral branch strutting arrangement, alleviate foundation in the tunnel promptly, the bearing capacity that ground received realizes the supporting effect to the tunnel inside wall again, the last strutting arrangement of mutually supporting and the collateral branch strutting arrangement restrict each other, realize the effect of strutting in tunnel jointly.
Description
Technical Field
The utility model relates to a coal mine tunnel struts technical field, concretely relates to coal mine tunnel struts device.
Background
In recent years, with the increase of coal mining depth and the improvement of mechanical level, the section of a stoping roadway is gradually increased, the mine pressure is gradually increased, the bending resistance and torsion resistance of the conventional supporting device are weak, when the pressure is increased to a certain degree, the phenomena of damage such as skew, bending, deformation and the like are easy to occur, the supporting effect is poor, and the stability of a roadway surrounding rock mass cannot be well maintained;
in a traditional coal mine roadway supporting device, a roadway support is usually fixedly installed on the ground in a roadway, and the top of the support is abutted against the top wall of the roadway to support and protect the top wall of the roadway, but in this case, the pressure of the roadway support from the top wall of the roadway is completely concentrated on a roadway foundation, so that the foundation and the ground in the roadway are easily collapsed; moreover, the traditional roadway support basically does not have any effective protection and support measures for the side wall of the roadway, only supports the top wall of the roadway but neglects the support for the side wall, so that the overall support effect on the roadway is reduced;
in view of the above, we provide a coal mine roadway support device for solving the above problems.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model provides a coal mine tunnel supporting device, this coal mine tunnel supporting device includes strutting arrangement and side strutting arrangement, it realizes the support to the tunnel roof to go up strutting arrangement and to act on side strutting arrangement with the pressure part of receiving the tunnel roof, alleviate foundation in the tunnel promptly, the bearing capacity that ground received realizes the supporting effect to the tunnel inside wall again, the last strutting arrangement of mutually supporting and the mutual restriction between the side strutting arrangement, realize the effect of strutting in tunnel jointly.
Colliery tunnel supporting device, including supporting the plectane, its characterized in that, support the vertical sliding connection of plectane and be connected with first spring between plectane and the tunnel diapire, lateral sliding installs collateral branch fagging and collateral branch fagging through second spring fixedly connected with butt joint board on the tunnel diapire, vertical interval is fixed with on the collateral branch fagging first sloping block and the supporting plectane be fixed with first sloping block matched with second sloping block, lateral sliding installs on the collateral branch fagging and is connected with the third spring between spliced pole and the collateral branch fagging, the second sloping block is equipped with the connecting hole with spliced pole matched with towards first sloping block one side that corresponds with it, be provided with on the collateral branch fagging and be used for the locking device to the spliced pole location and this locking device satisfies: when the supporting circular plate moves downwards to enable the second inclined block to act on the locking device, the second inclined block releases the positioning of the connecting column by the locking device, and the connecting column is inserted into the corresponding connecting hole.
Preferably, fixed mounting is equipped with the slide opening on base and the base on the tunnel diapire, terminal surface fixedly connected with L shape pole and the vertical sliding connection of L shape pole are in the slide opening that corresponds with it under the supporting circular plate, be equipped with on the base with collateral branch fagging lateral sliding fit's spout and collateral branch fagging lateral sliding installs in the spout.
Preferably, the lower end face of the first inclined block is fixedly provided with a rectangular plate and a connecting column is transversely installed on the rectangular plate in a sliding mode, and the second spring is connected between the rectangular plate and the connecting column.
Preferably, the locking device comprises a T-shaped rod with one transverse end vertically slidably mounted on the side supporting plate, a jack in vertical sliding fit with the T-shaped rod is arranged on the connecting column, and a fourth spring is connected between the T-shaped rod and the side supporting plate.
Preferably, the fixed mounting has two first conducting strips that are electric connection each other on the connecting hole diapire, the spliced pole is towards a connecting hole lateral wall fixed mounting has two second conducting strips and two second conducting strips are connected with the power that sets up in the tunnel through the wire, two establish ties in the first conducting strip electric circuit and have the warning light.
Preferably, the supporting circular plates are longitudinally arranged in the roadway at intervals, a plurality of inserting holes are formed in the two longitudinal side walls of each supporting circular plate at intervals around the circumferential direction of the supporting circular plate, and telescopic columns are connected between the inserting holes in the two adjacent supporting circular plates.
Preferably, the telescopic column comprises a trapezoidal rod matched with the insertion hole, the other end of the trapezoidal rod is matched with an inner threaded rod through threads, and the other end of the inner threaded rod is matched in the insertion hole.
The beneficial effects of the technical scheme are as follows:
(1) the coal mine roadway supporting device comprises an upper supporting device and a side supporting device, wherein the upper supporting device supports the top wall of the roadway, and the upper supporting device acts the pressure part of the top wall of the roadway on the side supporting device, so that the bearing capacity of the foundation and the ground in the roadway is reduced, and the supporting effect of the inner side wall of the roadway is realized;
(2) moreover, when too much displacement of caving in downwards as the tunnel roof, under the effect of heavily pressing, go up strutting arrangement downstream and trigger the alarm device who sets up on collateral branch strutting arrangement for when last strutting arrangement moves down the displacement too much, in time send out the police dispatch newspaper, provide the early warning for operation personnel in the coal mine tunnel, make the coal mine staff in time withdraw.
Drawings
FIG. 1 is a schematic front view of the overall structure of the present invention;
FIG. 2 is a schematic view of the tunnel of the present invention with a partially cut-away inner structure;
FIG. 3 is a schematic view of the upper support device and the side support device of the present invention;
FIG. 4 is a schematic view of the locking device of the present invention;
FIG. 5 is a schematic view of the alarm device of the present invention in a mated relationship when triggered;
FIG. 6 is a schematic view showing the connection relationship between two adjacent supporting circular plates of the present invention;
FIG. 7 is a schematic view of the structure of the telescopic column of the present invention;
FIG. 8 is a schematic diagram of the connection of the power supply circuit of the present invention;
fig. 9 is a schematic view of the specific structure of the locking device of the present invention.
In the figure: support plectane 1, tunnel 2, first spring 3, collateral branch fagging 4, second spring 5, butt plate 6, first sloping block 7, second sloping block 8, spliced pole 9, third spring 10, connecting hole 11, base 12, slide opening 13, L shape pole 14, spout 15, rectangular plate 16, T shape pole 17, jack 18, fourth spring 19, spliced eye 20, flexible post 21, trapezoidal pole 22, internal screw 23.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 9. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
In a first embodiment, the present embodiment provides a structure of a coal mine roadway supporting device, specifically referring to fig. 2, the coal mine roadway 2 supporting device comprises a supporting circular plate 1, and is characterized in that the supporting circular plate 1 is vertically slidably connected to a bottom wall of a roadway 2, and a first spring 3 is connected between the supporting circular plate 1 and the bottom wall of the roadway 2, when the supporting circular plate 1 receives a downward pressure from a top wall of the roadway 2, the supporting circular plate 1 moves downward and compresses the first spring 3, a lateral supporting plate 4 is transversely slidably mounted on the bottom wall of the roadway 2, and the lateral supporting plate 4 is fixedly connected with a supporting plate 6 through a second spring 5, the other side of the supporting plate 6 abuts against a side wall of the roadway 2, first inclined blocks 7 are vertically fixed on the lateral supporting plate 4 at intervals, and second inclined blocks 8 matched with the first inclined blocks 7 are fixed on the supporting circular plate 1, referring to fig. 3, when the supporting circular plate 1 moves downward after receiving the downward pressure from the top, the second oblique block 8 fixed on the supporting circular plate 1 acts on the first oblique block 7 fixed on the side supporting plate 4, the side supporting plate 4 is driven to move towards the direction far away from the second oblique block 8 along the bottom wall of the roadway 2 and compress the second spring 5 through the oblique acting force between the first oblique block 7 and the second oblique block 8, at the moment, one part of the downward pressure of the top wall of the roadway 2 on the supporting circular plate 1 passes through the side supporting plate 4 and then acts on the side wall of the roadway 2, the other part acts on the ground in the roadway 2 through the first spring 3, so that the bearing force of the ground in the roadway 2 on the supporting circular plate 1 is reduced, the situation that the foundation and the ground in the roadway 2 are collapsed due to the larger bearing force is avoided, meanwhile, the supporting and protecting effects on the side wall of the roadway 2 are further realized due to the mutual restriction between the side wall and the top wall of the roadway 2, and the supporting effect on the inner wall of the roadway 2 is realized, A protection effect;
referring to fig. 3 and 4, preferably, a connecting column 9 is transversely slidably mounted on the side supporting plate 4, a third spring 10 is connected between the connecting column 9 and the side supporting plate 4, and when the connecting column 9 is determined in an initial state, the third spring 10 is in a stretched state, a connecting hole 11 matched with the connecting column 9 is formed in one side of the second inclined block 8 facing the corresponding first inclined block 7, when the supporting circular plate 1 is subjected to an excessively large downward pressure from the top wall of the roadway 2, the downward movement of the supporting circular plate 1 is excessively large, so that when the second inclined block 8 is no longer in contact with the first inclined block 7 on two inclined surfaces, the connecting hole 11 formed in the second inclined block 8 abuts against the first inclined block 7 at a plane position, and at this time, the first inclined block 7 does not move in a direction close to the side wall of the roadway 2 any more, and along with the continuous downward movement of the supporting circular plate 1, we provide locking means for positioning the connecting column 9 on the side support plate 4 and which satisfy: when the supporting circular plate 1 moves downwards to enable the second inclined block 8 to act on the locking device, the second inclined block 8 releases the positioning of the connecting column 9 by the locking device, when the locking device just releases the positioning of the connecting column 9, the connecting hole 11 arranged on the first inclined block 7 moves to the position of the connecting column 9 along with the first inclined block 7, the connecting column 9 loses the positioning of the locking device and is inserted into the connecting hole 11 arranged on the first inclined block 7 under the action of the third spring 10, referring to the illustration in figure 5, when the connecting column 9 is inserted into the connecting hole 11 corresponding to the connecting column, as the side supporting plate 4 is transversely and slidably arranged on the bottom wall of the roadway 2, the supporting circular plate 1 and the side supporting plate 4 are fixedly connected together, the soft contact between the supporting circular plate 1 and the foundation of the roadway 2 is changed into the hard contact, so that the supporting circular plate 1 does not continuously move downwards, the soft contact is changed into the hard contact, so that the effect of preventing the top wall of the roadway 2 from continuously moving downwards is realized, and the collapse caused by the overlarge deformation and displacement of the top wall of the roadway 2 is avoided.
Second embodiment, on the basis of first embodiment, fixed mounting has base 12 on 2 diapalls in tunnel, and base 12 fixes on 2 foundations in tunnel through bolt fastening mode or other fixed connection modes to be equipped with spout 15 on base 12, side backup pad 4 lateral sliding installs in spout 15, terminal surface fixedly connected with L shape pole 14 and the vertical sliding connection of L shape pole 14 in the slide opening 13 that corresponds with it under supporting plectane 1, first spring 3 is connected between L shape pole 14 lower extreme surface and slide opening 13 diapalls, and the vertical interval of first sloping block 7 is fixed in L shape pole 14 and is faced 2 lateral walls in tunnel one side.
In a third embodiment, on the basis of the first embodiment, a rectangular plate 16 is fixedly mounted on the lower end face of the first inclined block 7, and a connecting column 9 is transversely slidably mounted on the rectangular plate 16, the second spring 5 is connected between the rectangular plate 16 and the connecting column 9, as shown in fig. 4, the rectangular plate 16 is fixedly mounted on the lower end face of the first inclined block 7, and the connecting column 9 is transversely slidably connected on the rectangular plate 16, a rectangular hole (not shown in the figure) in sliding fit with the connecting column 9 is formed in the rectangular plate 16, and when the inclined face of the second inclined block 8 is not in contact with the inclined face of the first inclined block 7, the second inclined block 8 is provided with a connecting hole 11, and the position of the connecting hole is abutted against the rectangular plate 16, as shown in.
Fourth embodiment, on the basis of the third embodiment, the present embodiment provides a specific structure of a locking device, as shown in fig. 4, the locking device includes a T-shaped rod 17 having one end in the transverse direction and vertically slidably mounted on the side support plate 4, and a socket 18 vertically slidably fitted with the T-shaped rod 17 is provided on the connecting column 9, a fourth spring 19 is connected between the T-shaped rod 17 and the side support plate 4, in an initial state, when the connecting column 9 is locked, the vertically extending end of the T-shaped rod 17 under the elastic force of the fourth spring 19 is inserted into the socket 18 provided on the connecting column 9, and locking of the connecting column 9 is achieved, when the second swash block 8 moves downward along the L-shaped rod 14, when the lower end of the second swash block 8 abuts against the T-shaped rod 17 as a horizontal portion, the T-shaped rod 17 starts to move downward along the side support plate 4 and stretches the fourth spring 19, when the T-shaped rod 17 moves downward to eject the T-shaped rod 17 completely from the socket 18, at the moment, the locking of the connecting column 9 is released, and the connecting column 9 is inserted into a connecting hole 11 arranged on the second inclined block 8 under the elastic force of a third spring 10, so that the fixed connection between the L-shaped rod 14 and the side supporting plate 4 is realized.
Fifth embodiment, on the basis of the first embodiment, the present embodiment provides an alarm device, specifically referring to fig. 8, two first conductive sheets electrically connected to each other are fixedly installed on the bottom wall of the connection hole 11, two second conductive sheets corresponding to the two first conductive sheets are fixedly installed on one side wall of the connection column 9 facing the connection hole 11, and the two second conductive sheets are connected to a power supply installed in the roadway 2 through a wire, a warning light is connected in series in an electrical loop of the two first conductive sheets, that is, the two first conductive sheets and the warning light are connected together through a wire, the two second conductive sheets are respectively connected to the positive and negative poles of the power supply through wires, specifically, the power supply can be a storage battery, when the connection column 9 is not inserted into the connection hole 11 corresponding to the connection column, the first conductive sheets and the corresponding second conductive sheets are not contacted, and the power supply loop in fig. 8 is in an open circuit state, when spliced pole 9 inserts in the connecting hole 11 that corresponds with it (2 roof in tunnel cave down this moment, the deflection is great, there is the danger of caving constantly), the first conducting strip and the contact of second conducting strip that correspond each other and make the power return circuit switch-on in the attached 8, the warning light lights this moment, warn the staff in the coal mine tunnel 2, make the borehole operation personnel in time withdraw, the setting of the conducting strip of mutually supporting in this scheme is no longer shown in the schematic diagram.
Sixth embodiment, on the basis of the first embodiment, referring to fig. 6, the supporting circular plates 1 are longitudinally arranged in the roadway 2 at intervals, a plurality of inserting holes 20 are formed in the two longitudinal side walls of the supporting circular plates 1 at intervals around the circumferential direction of the supporting circular plates, and a telescopic column 21 is connected between the inserting holes 20 of the two adjacent supporting circular plates 1, a plurality of groups of supporting circular plates 1 are longitudinally arranged in the roadway 2 at intervals, and two adjacent groups of supporting circular plates 1 are connected together through the telescopic column 21, so that the downward pressure of the top wall of the roadway 2 to the supporting circular plates 1 is dispersed to each supporting circular plate 1, and thus the supporting circular plates 1 are connected together through the telescopic column 21 and form a whole to jointly support and protect the top wall of the roadway 2.
Seventh embodiment, on the basis of the sixth embodiment, the present embodiment provides a specific structure of a telescopic column 21, as shown in fig. 7, the telescopic column 21 includes a trapezoidal rod 22 matching with the insertion hole 20, the other end of the trapezoidal rod 22 matches with an inner threaded rod 23 through threads, the other end of the inner threaded rod 23 matches with the insertion hole 20, the non-threaded end of the trapezoidal rod 22 is inserted into the insertion hole 20 matching with the trapezoidal rod 22, one end of the inner threaded rod 23 is connected with the trapezoidal rod 22 through threads, the other end is inserted into the insertion hole 20 matching with the trapezoidal rod, when a constructor installs the support device downhole, the supporting circular plate 1 and the side supporting plate 4 matching with each other can be installed first, then one end of the trapezoidal rod 22 is inserted into the insertion hole 20 arranged in the circular supporting plate 1 and the trapezoidal rod 22 abuts against the bottom wall of the insertion hole 20, then the telescopic column 21 is extended by rotating the inner threaded rod 23, the other end of the inner threaded rod 23 is also inserted into the plug hole 20 and is abutted to the bottom wall of the plug hole 20, and finally the connection of two adjacent supporting circular plates 1 is achieved, the downward pressure of the top wall of the roadway 2 to the supporting circular plates 1 is jointly born, the installation is convenient and rapid, and when the plug hole 20 is arranged, the inner diameter of the plug hole 20 is slightly larger than the diameters of the trapezoidal rod 22 and the inner threaded rod 23, so that the plug hole 20 can rotate relatively.
The coal mine roadway 2 supporting device comprises an upper supporting device and a side supporting device, wherein the upper supporting device supports the top wall of the roadway 2, and the upper supporting device acts the pressure part of the top wall of the roadway 2 on the side supporting device, so that the bearing capacity of the foundation and the ground in the roadway 2 is reduced, and the supporting effect on the inner side wall of the roadway 2 is realized, and the upper supporting device and the side supporting device which are matched with each other are restricted with each other, so that the supporting effect on the roadway 2 is realized together;
moreover, when too much displacement of caving in downwards in 2 roof in tunnel, under the effect of heavily pressing, go up strutting arrangement downstream and trigger the alarm device who sets up on collateral branch strutting arrangement for when last strutting arrangement moves down the displacement too much, in time send out the police dispatch newspaper, provide the early warning for operation personnel in coal mine tunnel 2, make coal mine staff in time withdraw.
The above description is only for the purpose of illustration, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.
Claims (7)
1. Coal mine roadway supporting device comprises a supporting circular plate (1) and is characterized in that the supporting circular plate (1) is vertically connected to the bottom wall of a roadway (2) in a sliding manner, a first spring (3) is connected between the supporting circular plate (1) and the bottom wall of the roadway (2), a lateral supporting plate (4) and a lateral supporting plate (4) are arranged on the bottom wall of the roadway (2) in a sliding manner, a supporting plate (6) is fixedly connected through a second spring (5), first inclined blocks (7) are fixed on the lateral supporting plate (4) at vertical intervals, second inclined blocks (8) matched with the first inclined blocks (7) are fixed on the supporting circular plate (1), a connecting column (9) is arranged on the lateral supporting plate (4) in a sliding manner, a third spring (10) is connected between the connecting column (9) and the lateral supporting plate (4), one side of each second inclined block (8) facing the corresponding first inclined block (7) is provided with a connecting hole (11) matched with the connecting column (9), the side supporting plate (4) is provided with a locking device for positioning the connecting column (9), and the locking device meets the following requirements: when the supporting circular plate (1) moves downwards to enable the second inclined block (8) to act on the locking device, the second inclined block (8) releases the positioning of the connecting column (9) by the locking device, and the connecting column (9) is inserted into the corresponding connecting hole (11).
2. The coal mine roadway support device according to claim 1, wherein a base (12) is fixedly mounted on the bottom wall of the roadway (2) and a sliding hole (13) is formed in the base (12), an L-shaped rod (14) is fixedly connected to the lower end face of the supporting circular plate (1) and the L-shaped rod (14) is vertically slidably connected into the sliding hole (13) corresponding to the supporting circular plate, a sliding groove (15) which is in transverse sliding fit with the side supporting plate (4) is formed in the base (12), and the side supporting plate (4) is transversely slidably mounted in the sliding groove (15).
3. The coal mine roadway support device according to claim 1, wherein a rectangular plate (16) is fixedly installed on the lower end face of the first inclined block (7), the connecting column (9) is transversely and slidably installed on the rectangular plate (16), and the second spring (5) is connected between the rectangular plate (16) and the connecting column (9).
4. The coal mine roadway support device according to claim 3, wherein the locking device comprises a T-shaped rod (17) with one transverse end vertically slidably mounted on the side supporting plate (4), a jack (18) vertically slidably matched with the T-shaped rod (17) is arranged on the connecting column (9), and a fourth spring (19) is connected between the T-shaped rod (17) and the side supporting plate (4).
5. The coal mine roadway support device according to claim 1, wherein two first conducting strips which are electrically connected with each other are fixedly installed on the bottom wall of the connecting hole (11), two second conducting strips are fixedly installed on one side wall of the connecting column (9) facing the connecting hole (11) and connected with a power supply arranged in the roadway (2) through a lead, and an alarm lamp is connected in series in an electric loop of the two first conducting strips.
6. The coal mine roadway support device according to claim 1, wherein the supporting circular plates (1) are longitudinally arranged in the roadway (2) at intervals, a plurality of inserting holes (20) are formed in the two longitudinal side walls of the supporting circular plates (1) at intervals around the circumferential direction of the supporting circular plates, and telescopic columns (21) are connected between the inserting holes (20) in the two adjacent supporting circular plates (1).
7. The coal mine roadway support device according to claim 6, wherein the telescopic column (21) comprises a trapezoidal rod (22) matched with the plug hole (20), the other end of the trapezoidal rod (22) is matched with an inner threaded rod (23) through threads, and the other end of the inner threaded rod (23) is matched in the plug hole (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922082972.0U CN210858747U (en) | 2019-11-28 | 2019-11-28 | Coal mine tunnel supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922082972.0U CN210858747U (en) | 2019-11-28 | 2019-11-28 | Coal mine tunnel supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210858747U true CN210858747U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922082972.0U Expired - Fee Related CN210858747U (en) | 2019-11-28 | 2019-11-28 | Coal mine tunnel supporting device |
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| CN (1) | CN210858747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779515A (en) * | 2020-08-28 | 2020-10-16 | 华亭煤业集团有限责任公司 | Rock burst prevention support for mining |
| CN111810201A (en) * | 2020-07-13 | 2020-10-23 | 程良 | Can let pressure U shaped steel support |
-
2019
- 2019-11-28 CN CN201922082972.0U patent/CN210858747U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810201A (en) * | 2020-07-13 | 2020-10-23 | 程良 | Can let pressure U shaped steel support |
| CN111779515A (en) * | 2020-08-28 | 2020-10-16 | 华亭煤业集团有限责任公司 | Rock burst prevention support for mining |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 Termination date: 20201128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |