CN107642372B - Tunneling support with forepoling bar - Google Patents
Tunneling support with forepoling bar Download PDFInfo
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- CN107642372B CN107642372B CN201710704473.3A CN201710704473A CN107642372B CN 107642372 B CN107642372 B CN 107642372B CN 201710704473 A CN201710704473 A CN 201710704473A CN 107642372 B CN107642372 B CN 107642372B
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- 230000005641 tunneling Effects 0.000 title abstract description 25
- 238000001514 detection method Methods 0.000 claims description 57
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
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Abstract
The utility model provides a tunnelling support with forestope, including preceding supporting component and back supporting component, preceding supporting component includes a plurality of preceding supporting beam, the left end of every preceding supporting beam links to each other with the upper portion of a preceding left pillar is fixed respectively, the middle part on every preceding left pillar top adopts the clearance fit cartridge to have a preceding flexible post of going up in a left side along vertical direction respectively, every preceding flexible post of going up in a left side upwards stretches out to the top on preceding left pillar top in a left side respectively, the middle part of every preceding left pillar bottom adopts the clearance fit cartridge to have a preceding flexible post of going up in a left side along vertical direction respectively, every preceding flexible post of going down in a left side stretches out to the below of preceding left pillar bottom downwards respectively. The tunneling support with the forepoling beam is simple in structure, convenient to install, remove and maintain, high in supporting strength of a mining working face, capable of continuously supporting a top plate of the mining working face and capable of effectively preventing roof fall accidents when the support is moved forwards.
Description
Technical Field
The invention relates to a tunneling support with a front canopy.
Background
The existing special temporary support for tunneling generally adopts a metal forepoling beam, the support has the defects of low support strength, complex operation and poor practicability, and accidents such as roof falling, wall caving and the like greatly threaten the personal safety of operating personnel.
By adopting the construction process when the metal front canopy is supported, the cutting operation and the supporting construction of the development machine on the operation site are in the same area, the supporting operation cannot be carried out when the blast head of the development machine is cut, and the supporting operation can be carried out only by stopping the cutting operation of the blast head of the development machine. After the tunneling and cutting operation is finished, the tunneling machine is retreated for a certain distance, the tunneling machine is powered off and locked, personnel carry out operations such as drilling, net hanging and anchor rod mounting in front of the gun head of the tunneling machine, the operation procedures are complicated, and head-on operators are damaged or killed by the gun head of the tunneling machine, so that the construction process has great potential safety hazards. The construction process has the main disadvantages that: the support strength is low, the operation is troublesome, the safety coefficient is low, the practicability is poor, and the overall efficiency of the tunneling operation is lower.
Disclosure of Invention
The invention aims to provide the tunneling support with the forepoling beam, which can realize mechanical and remote control of temporary support operation, is very convenient to install, remove and maintain, has high working efficiency of movement, strong practicability and high support strength on a mining working surface, realizes continuous support on a top plate of the mining working surface, and can effectively prevent roof collapse accidents when the support is moved forwards.
The invention relates to a tunneling support with a front canopy, which comprises a front supporting assembly and a rear supporting assembly, wherein the front supporting assembly comprises a plurality of front supporting beams, the front supporting beams are arranged side by side along the left-right horizontal direction, the left end of each front supporting beam is fixedly connected with the upper part of a left front supporting column, the left front supporting column is arranged along the vertical direction, the middle part of the top end of each left front supporting column is inserted with a left front upper telescopic column in a clearance fit manner along the vertical direction, each left front upper telescopic column extends upwards to the upper part of the top end of the left front supporting column, the middle part of the bottom end of each left front supporting column is inserted with a left front lower telescopic column in a clearance fit manner along the vertical direction, each left front lower telescopic column extends downwards to the lower part of the bottom end of the left front supporting column, and the bottom end of each left front lower telescopic column is fixed with a left front supporting bottom supporting plate;
the right end of each front supporting cross beam is fixedly connected with the upper part of a right front supporting column respectively, the right front supporting column is arranged along the vertical direction, the middle part of the top end of each right front supporting column is inserted with a right front upper telescopic column in a clearance fit mode along the vertical direction respectively, each right front upper telescopic column extends upwards to the upper part of the top end of the right front supporting column respectively, the middle part of the bottom end of each right front supporting column is inserted with a right front lower telescopic column in a clearance fit mode along the vertical direction respectively, each right front lower telescopic column extends downwards to the lower part of the bottom end of the right front supporting column respectively, and the bottom end of each right front lower telescopic column is fixedly provided with a right front supporting bottom supporting plate respectively;
the rear support assembly comprises a plurality of rear support cross beams, the number of the rear support cross beams is the same as that of the front support cross beams, and each rear support cross beam is arranged between two adjacent front support cross beams at intervals from front to back and is arranged in parallel with the front support cross beams;
the left end of each rear supporting beam is fixedly connected with the upper part of a left rear supporting column respectively, the left rear supporting column is arranged along the vertical direction, the middle part of the top end of each left rear supporting column is inserted with a left rear upper telescopic column in a clearance fit manner along the vertical direction respectively, each left rear upper telescopic column extends upwards to the upper part of the top end of the left rear supporting column respectively, the middle part of the bottom end of each left rear supporting column is inserted with a left rear lower telescopic column in a clearance fit manner along the vertical direction respectively, each left rear lower telescopic column extends downwards to the lower part of the bottom end of the left rear supporting column respectively, and the bottom end of each left rear lower telescopic column is fixed with a left rear supporting bottom plate respectively;
the right end of each rear supporting cross beam is fixedly connected with the upper part of a right rear supporting column respectively, the right rear supporting column is arranged along the vertical direction, the middle part of the top end of each right rear supporting column is inserted with a right rear upper telescopic column in a clearance fit manner along the vertical direction respectively, each right rear upper telescopic column extends upwards to the upper part of the top end of the right rear supporting column respectively, the middle part of the bottom end of each right rear supporting column is inserted with a right rear lower telescopic column in a clearance fit manner along the vertical direction respectively, each right rear lower telescopic column extends downwards to the lower part of the bottom end of the right rear supporting column respectively, and the bottom end of each right rear lower telescopic column is fixed with a right rear supporting bottom supporting plate respectively;
front supporting longitudinal beams are arranged at the top ends of the front supporting cross beams along the front-back horizontal direction, the front supporting longitudinal beams are fixedly connected with the top end of each front supporting cross beam respectively, and the front supporting longitudinal beams are arranged at the top ends of the rear supporting cross beams;
the top ends of the plurality of rear supporting cross beams are provided with rear supporting longitudinal beams along the front-rear horizontal direction, the rear supporting longitudinal beams are respectively and fixedly connected with the top end of each rear supporting cross beam, and the rear supporting longitudinal beams are arranged at the top ends of the plurality of front supporting cross beams;
a plurality of front-detection front supporting beams are arranged in front of the front supporting beam at the foremost end along the left-right horizontal direction, the left side of each front-detection front supporting beam is respectively connected with a piston rod of a front-detection left-front upper oil cylinder in an installing manner, the piston rod of each front-detection left-front upper oil cylinder can extend upwards along the vertical direction, the upper part of the cylinder body of each front-detection left-front upper oil cylinder is connected with the corresponding front supporting longitudinal beam in an installing manner, the right side of each front-detection front supporting beam is respectively connected with the piston rod of a front-detection right-front upper oil cylinder in an installing manner, the piston rod of each front-detection right-front upper oil cylinder can extend upwards along the vertical direction, and the upper part of the cylinder body of each front-detection right-front upper oil;
a plurality of front-detection rear supporting beams are arranged in front of the rear supporting beam at the foremost end along the left-right horizontal direction, the left side of each front-detection rear supporting beam is respectively connected with a piston rod of a front-detection left-rear upper oil cylinder in an installing manner, the piston rod of each front-detection left-rear upper oil cylinder can extend upwards along the vertical direction, the upper part of the cylinder body of each front-detection left-rear upper oil cylinder is connected with a corresponding rear supporting longitudinal beam in an installing manner, the right side of each front-detection rear supporting beam is respectively connected with a piston rod of a front-detection right-rear upper oil cylinder in an installing manner, the piston rod of each front-detection right-rear upper oil cylinder can extend upwards along the vertical direction, and the upper part of the cylinder body of each front-detection right-rear upper oil;
the front support longitudinal beam and the rear support longitudinal beam are fixedly connected through the clamping plate assembly;
a front support top beam is respectively arranged above each front support cross beam along the left-right horizontal direction, the left side of each front support top beam is respectively fixedly connected with the top end of a left front upper telescopic column, and the right side of each front support top beam is respectively fixedly connected with the top end of a right front upper telescopic column;
a rear support top beam is respectively arranged above each rear support cross beam along the left-right horizontal direction, the left side of each rear support top beam is respectively fixedly connected with the top end of a left rear upper telescopic column, and the right side of each rear support top beam is respectively fixedly connected with the top end of a right rear upper telescopic column;
a plurality of oil cylinders are arranged between the adjacent front supporting cross beams and the adjacent rear supporting cross beams and are respectively arranged along the front and rear directions, the cylinder body of each oil cylinder is respectively arranged on the corresponding rear supporting cross beam, and the piston rod of each oil cylinder is respectively hinged with the corresponding front supporting cross beam.
The invention relates to a tunneling support with a front canopy, wherein the number of the front support longitudinal beams and the number of the rear support longitudinal beams are 2, and 2 rear support longitudinal beams are arranged between the 2 front support longitudinal beams.
The invention relates to a tunneling support with a front canopy, wherein 2 or 3 oil cylinders are arranged between adjacent front supporting beams and rear supporting beams.
The invention relates to a tunneling support with a front canopy, wherein a left front supporting bottom plate, a right rear supporting bottom plate and a left rear supporting bottom plate are rectangular or circular, and the left front supporting bottom plate, the right rear supporting bottom plate and the left rear supporting bottom plate are made of steel.
The invention relates to a tunneling support with a front canopy, wherein a left front upper telescopic column, a right front upper telescopic column, a left rear upper telescopic column, a right rear upper telescopic column, a left front lower telescopic column, a right front lower telescopic column, a left rear lower telescopic column and a right rear lower telescopic column are respectively hydraulically or electrically driven telescopic columns.
When the tunneling bracket with the front canopy is used and the supporting position of the tunneling bracket with the front canopy needs to be adjusted, the left front upper telescopic column, the right front upper telescopic column, the left front lower telescopic column and the right front lower telescopic column of the front canopy assembly can be completely retracted, all the left front bottom supporting plate and the right front bottom supporting plate leave the ground, each front supporting top beam and the front canopy beam leave the top of a mining working surface, at the moment, the whole front canopy assembly is supported by the front canopy longitudinal beam 11 and is erected at the top ends of a plurality of rear canopy beams, then the piston rods of a plurality of oil cylinders extend out to push the corresponding front canopy beam on the front canopy assembly, the whole front canopy assembly moves forwards, and after the front canopy assembly is in place, the left front upper telescopic column, the right front upper telescopic column, the left front lower telescopic column and the right front lower telescopic column of the front canopy assembly all extend out and lengthen, all the front left supporting bottom supporting plates and the front right supporting bottom supporting plates are pressed tightly against the ground, each front supporting top beam and each front supporting cross beam are pressed against the top of the mining working surface, at the moment, the whole front supporting assembly moves forwards by the distance that a piston rod of an oil cylinder 15 extends forwards, then, a rear left upper telescopic column, a rear right upper telescopic column, a rear left lower telescopic column and a rear right lower telescopic column of the rear supporting assembly are all retracted, all the rear right supporting bottom supporting plates and the rear left supporting bottom supporting plates are made to leave the ground, each rear supporting top beam and each front rear supporting cross beam of the rear supporting assembly are made to leave the top of the mining working surface, at the moment, the whole rear supporting assembly is supported by rear supporting longitudinal beams, is erected at the top ends of the front supporting cross beams, then, the corresponding rear supporting cross beams on the rear supporting assembly are pulled by the contraction of the piston rods of the oil cylinders, and the whole rear supporting assembly is made to, after the mining face roof support is in place, the left rear upper telescopic column, the right rear upper telescopic column, the left rear lower telescopic column and the right rear lower telescopic column of the rear support assembly are all lengthened, all the right rear support bottom supporting plate and the left rear support bottom supporting plate are made to be pressed against the ground, each rear support top beam and each front-detection rear support cross beam prop against the top of the mining face, at the moment, the whole rear support assembly moves forwards by the distance that a piston rod of an oil cylinder retracts into a cylinder body, in the process, although each rear support top beam and each front-detection rear support cross beam of the rear support assembly do not prop against the roof of the mining face, each front support top beam and each front-detection front support cross beam of the front support assembly still prop against the roof of the mining face, therefore, the roof of the mining face roof is continuously supported, and roof fall accidents can be effectively prevented when the supports are moved forwards. Therefore, the tunneling support with the front canopy has the characteristics of simple structure, high working efficiency of movement, strong practicability and high supporting strength on a mining working surface, is very convenient to install, remove and maintain, realizes continuous supporting of a top plate of the mining working surface, and can effectively prevent roof collapse accidents when the support is moved forwards.
The heading support with the forebeam of the present invention will now be described in further detail with reference to the accompanying drawings.
Drawings
Figure 1 is a front view of a schematic structural view of a ripper support having a front canopy according to the present invention;
FIG. 2 is a side view of FIG. 1;
fig. 3 is a top view of section a-a of fig. 1.
Detailed Description
As shown in figure 1 of the drawings, in which, as shown in fig. 2 and 3, the tunneling support with the front canopy of the invention comprises a front supporting assembly and a rear supporting assembly, wherein the front supporting assembly comprises a plurality of front supporting beams 1, the front supporting beams 1 are arranged side by side along the left-right horizontal direction, the left end of each front supporting beam 1 is fixedly connected with the upper part of a left front supporting column 2, the left front supporting column 2 is arranged along the vertical direction, the middle part of the top end of each left front supporting column 2 is inserted with a left front upper telescopic column in a clearance fit manner along the vertical direction, each left front upper telescopic column extends upwards to the upper part of the top end of the left front supporting column 2, the middle part of the bottom end of each left front supporting column 2 is inserted with a left front lower telescopic column in a clearance fit manner along the vertical direction, each left front lower telescopic column extends downwards to the lower part of the bottom end of the left front supporting column 2, and the bottom end of each left front lower telescopic column is fixed with a left front bottom supporting plate 3;
the right end of each front supporting cross beam 1 is fixedly connected with the upper part of a right front supporting column 4, the right front supporting column 4 is arranged along the vertical direction, the middle part of the top end of each right front supporting column 4 is inserted with a right front upper telescopic column in a clearance fit manner along the vertical direction, each right front upper telescopic column extends upwards to the upper part of the top end of the right front supporting column 4, the middle part of the bottom end of each right front supporting column 4 is inserted with a right front lower telescopic column in a clearance fit manner along the vertical direction, each right front lower telescopic column extends downwards to the lower part of the bottom end of the right front supporting column 4, and the bottom end of each right front lower telescopic column is fixed with a right front supporting bottom supporting plate 5;
the rear support assembly comprises a plurality of rear support cross beams 6, the number of the rear support cross beams 6 is the same as that of the front support cross beams 1, and each rear support cross beam 6 is arranged between two adjacent front support cross beams 1 at intervals from front to back and is arranged in parallel with the front support cross beams 1;
the left end of each rear supporting beam 6 is fixedly connected with the upper part of a left rear supporting column 7, the left rear supporting column 7 is arranged along the vertical direction, the middle part of the top end of each left rear supporting column 7 is inserted with a left rear upper telescopic column in a clearance fit manner along the vertical direction, each left rear upper telescopic column extends upwards to the upper part of the top end of the left rear supporting column 7, the middle part of the bottom end of each left rear supporting column 7 is inserted with a left rear lower telescopic column in a clearance fit manner along the vertical direction, each left rear lower telescopic column extends downwards to the lower part of the bottom end of the left rear supporting column 7, and the bottom end of each left rear lower telescopic column is fixed with a left rear supporting bottom plate 8;
the right end of each rear supporting beam 6 is fixedly connected with the upper part of a right rear supporting column 9, the right rear supporting column 9 is arranged along the vertical direction, the middle part of the top end of each right rear supporting column 9 is inserted with a right rear upper telescopic column in a clearance fit manner along the vertical direction, each right rear upper telescopic column extends upwards to the upper part of the top end of the right rear supporting column 9, the middle part of the bottom end of each right rear supporting column 9 is inserted with a right rear lower telescopic column in a clearance fit manner along the vertical direction, each right rear lower telescopic column extends downwards to the lower part of the bottom end of the right rear supporting column 9, and the bottom end of each right rear lower telescopic column is fixed with a right rear supporting bottom supporting plate 10;
front supporting longitudinal beams 11 are arranged at the top ends of the front supporting cross beams 1 along the front-back horizontal direction, the front supporting longitudinal beams 11 are fixedly connected with the top end of each front supporting cross beam 1, and the front supporting longitudinal beams 11 are arranged at the top ends of the rear supporting cross beams 6;
the top ends of the plurality of rear supporting cross beams 6 are provided with rear supporting longitudinal beams 12 along the front-rear horizontal direction, the rear supporting longitudinal beams 12 are respectively fixedly connected with the top end of each rear supporting cross beam 6, and the rear supporting longitudinal beams 12 are arranged at the top ends of the plurality of front supporting cross beams 1;
a plurality of front-detection front supporting beams 22 are arranged in front of the front supporting beam 1 at the foremost end along the left-right horizontal direction, the left side of each front-detection front supporting beam 22 is respectively connected with a piston rod of a front-detection left-front upper oil cylinder 23, the piston rod of each front-detection left-front upper oil cylinder 23 can extend upwards along the vertical direction, the upper part of the cylinder body of each front-detection left-front upper oil cylinder 23 is connected with the corresponding front supporting longitudinal beam 11 in an installing mode, the right side of each front-detection front supporting beam 22 is respectively connected with the piston rod of a front-detection right-front upper oil cylinder in an installing mode, the piston rod of each front-detection right-front upper oil cylinder can extend upwards along the vertical direction, and the upper part of the cylinder body of each front-detection right-front upper oil cylinder is connected with the;
a plurality of front-detection rear supporting beams 25 are arranged in front of the rear supporting beam 6 at the foremost end along the left-right horizontal direction, the left side of each front-detection rear supporting beam 25 is respectively connected with a piston rod of a front-detection left-rear upper oil cylinder 26 in an installing manner, the piston rod of each front-detection left-rear upper oil cylinder 26 can upwards extend out along the vertical direction, the upper part of the cylinder body of each front-detection left-rear upper oil cylinder 26 is connected with a corresponding rear supporting longitudinal beam 12 in an installing manner, the right side of each front-detection rear supporting beam 25 is respectively connected with a piston rod of a front-detection right-rear upper oil cylinder in an installing manner, the piston rod of each front-detection right-rear upper oil cylinder can upwards extend out along the vertical direction, and the upper part of the cylinder body of each front-detection right-rear upper;
the front longitudinal support beam 11 and the rear longitudinal support beam 12 are fixedly connected through a splint assembly 28; when it is desired to move either the front or rear support assemblies, the cleat assemblies 28 need to be removed in advance.
A front supporting top beam 13 is respectively arranged above each front supporting cross beam 1 along the left-right horizontal direction, the left side of each front supporting top beam 13 is respectively fixedly connected with the top end of a left front upper telescopic column, and the right side of each front supporting top beam 13 is respectively fixedly connected with the top end of a right front upper telescopic column;
a rear supporting top beam 14 is respectively arranged above each rear supporting cross beam 6 along the left-right horizontal direction, the left side of each rear supporting top beam 14 is respectively fixedly connected with the top end of a left rear upper telescopic column, and the right side of each rear supporting top beam 14 is respectively fixedly connected with the top end of a right rear upper telescopic column;
a plurality of oil cylinders 15 are arranged between the adjacent front supporting cross beam 1 and the adjacent rear supporting cross beam 6, the oil cylinders 15 are respectively arranged along the front and rear directions, the cylinder body of each oil cylinder 15 is respectively arranged on the corresponding rear supporting cross beam 6, and the piston rod of each oil cylinder 15 is respectively hinged with the corresponding front supporting cross beam 1.
As a further improvement of the present invention, the number of the front longitudinal support beams 11 and the number of the rear longitudinal support beams 12 are 2, 2 rear longitudinal support beams 12 are disposed between the 2 front longitudinal support beams 11, and the front ends and the rear ends of the front longitudinal support beams 11 and the rear longitudinal support beams 12 are respectively connected by pin shafts, so that the front longitudinal support beams 11 and the rear longitudinal support beams 12 are fixed together and cannot move relatively, and when the front longitudinal support assemblies or the rear longitudinal support assemblies need to be moved, the pin shafts located at the front ends and the rear ends of the front longitudinal support beams 11 and the rear longitudinal support beams 12 need to be removed in advance.
As a further improvement of the present invention, 2 or 3 oil cylinders 15 are provided between the adjacent front and rear supporting beams 1 and 6.
As a further improvement of the present invention, the front left supporting bottom plate 3, the front right supporting bottom plate 5, the rear right supporting bottom plate 10, and the rear left supporting bottom plate 8 are rectangular or circular, and the front left supporting bottom plate 3, the front right supporting bottom plate 5, the rear right supporting bottom plate 10, and the rear left supporting bottom plate 8 are made of steel.
As a further improvement of the present invention, the left front upper telescopic column 16, the right front upper telescopic column 20, the left rear upper telescopic column 18, the right rear upper telescopic column, the left front lower telescopic column 17, the right front lower telescopic column 21, the left rear lower telescopic column 19 and the right rear lower telescopic column are respectively hydraulically or electrically driven telescopic columns.
When the tunneling support with the front canopy is used, each front supporting top beam 13 of the front supporting assembly and each rear supporting top beam 14 of the rear supporting assembly are all supported on a top plate of a mining working surface under normal conditions, when the supporting position of the tunneling support with the front canopy needs to be adjusted, all the front upper telescopic column, the front upper telescopic column 20, the front lower telescopic column and the front lower telescopic column 21 of the front supporting assembly can be retracted, all the front supporting bottom plate 3 and the front supporting bottom plate 5 are separated from the ground, each front top beam support 13 and the front supporting front beam 22 are separated from the top of the mining working surface, at the moment, the whole front supporting assembly is supported by the front supporting longitudinal beams 11 and is erected at the top ends of a plurality of rear supporting beams 6, then the front supporting beams extend out through piston rods of a plurality of oil cylinders 15, and corresponding front supporting beams 1 on the front supporting assembly are pushed, the whole front supporting assembly moves forwards, and after the front supporting assembly is in place, all the left front upper telescopic column, the right front upper telescopic column 20, the left front lower telescopic column and the right front lower telescopic column 21 of the front supporting assembly extend out and lengthen, all the left front supporting bottom supporting plate 3 and the right front supporting bottom supporting plate 5 of the front supporting assembly are pressed against the ground, each front supporting top beam 13 and each front probing front supporting cross beam 22 are pressed against the top of a mining working face, at the moment, the whole front supporting assembly moves forwards by the distance that a piston rod of an oil cylinder 15 extends forwards, in the process, although each front supporting top beam 13 of the front supporting assembly is not pressed against the top plate of the mining working face, each rear supporting top beam 14 of the rear supporting assembly is pressed against the top plate of the mining working face, so that the continuous supporting of the top plate of the mining working face is realized, and roof collapse accidents can be effectively prevented when the supports are moved forwards;
then, the left rear upper telescopic column, the right rear upper telescopic column, the left rear lower telescopic column and the right rear lower telescopic column of the rear supporting assembly are all retracted, all the right rear supporting bottom supporting plate 10 and the left rear supporting bottom supporting plate 8 are enabled to be away from the ground, each rear supporting top beam 14 and each front rear supporting cross beam 25 are enabled to be away from the top of the mining working surface, at the moment, the whole rear supporting assembly is supported by the rear supporting longitudinal beams 12 and is erected at the top ends of a plurality of front supporting cross beams 1, then piston rods of a plurality of oil cylinders 15 are contracted to pull the corresponding rear supporting cross beam 6 on the rear supporting assembly, the whole rear supporting assembly is enabled to move forwards, after the rear supporting assembly is in place, the left rear upper telescopic column, the right rear upper telescopic column, the left rear lower telescopic column and the right rear lower telescopic column of the rear supporting assembly are all lengthened, all the right rear supporting bottom supporting plate 10 and the left rear supporting bottom supporting plate 8 are enabled to be pressed tightly, and each rear supporting top beam 14 and each front rear supporting cross beam 25 are all pushed towards the top of the mining working, at the moment, the whole rear supporting assembly moves forwards by the distance that the piston rod of the oil cylinder 15 contracts into the cylinder body, in the process, although each rear supporting top beam 14 and each front-reaching rear supporting cross beam 25 of the rear supporting assembly do not abut against the top plate of the mining working face any more, each front supporting top beam 13 and each front-reaching front supporting cross beam 22 of the front supporting assembly abut against the top plate of the mining working face, so that continuous supporting of the top plate of the mining working face is realized, and roof-fall accidents can be effectively prevented when the supports are moved forwards.
The invention aims to provide novel temporary support equipment and promote a novel tunneling construction process. By using the support, the strength of temporary support is improved, and the temporary support operation is mechanized and remotely controlled, so that the aims of safety, reliability, simplicity in operation, rapidness and high efficiency are fulfilled, and the continuous support of the top plate is realized. By applying the construction process, the cutting operation area of the gun of the heading machine is separated from the support operation area of personnel, the support place is changed from the front end of the heading machine to the rear end of the heading machine, the cutting operation and the support operation are changed from sequential operation and cross operation to parallel operation, the two working procedures of the cutting operation and the support operation are not interrupted, the continuous operation is realized, the time of the cutting operation is prolonged, and the time of the support operation is also prolonged. Therefore, the construction process is safe and reliable, continuous operation is realized, and the total tunneling efficiency can be improved by 40%.
Claims (5)
1. Tunnelling support with forestope, its characterized in that: the front support assembly comprises a plurality of front support beams (1), the front support beams (1) are arranged side by side along the left-right horizontal direction, the left end of each front support beam (1) is fixedly connected with the upper part of one front left support column (2), the front left support columns (2) are arranged along the vertical direction, the middle part of the top end of each front left support column (2) is inserted with a front left upper telescopic column in a clearance fit manner along the vertical direction, each front left upper telescopic column extends upwards to the upper part of the top end of the front left support column (2), the middle part of the bottom end of each front left support column (2) is inserted with a front left lower telescopic column in a clearance fit manner along the vertical direction, each front left lower telescopic column extends downwards to the lower part of the bottom end of the front left support column (2), and a front left support bottom supporting plate (3) is fixed at the bottom end of each front left lower telescopic column;
the right end of each front supporting cross beam (1) is fixedly connected with the upper part of a right front supporting column (4) respectively, the right front supporting column (4) is arranged along the vertical direction, the middle part of the top end of each right front supporting column (4) is inserted with a right front upper telescopic column in a clearance fit manner along the vertical direction respectively, each right front upper telescopic column extends upwards to the upper part of the top end of the right front supporting column (4) respectively, the middle part of the bottom end of each right front supporting column (4) is inserted with a right front lower telescopic column in a clearance fit manner along the vertical direction respectively, each right front lower telescopic column extends downwards to the lower part of the bottom end of the right front supporting column (4) respectively, and the bottom end of each right front lower telescopic column is fixed with a right front supporting bottom supporting plate (5) respectively;
the rear support assembly comprises a plurality of rear support cross beams (6), the number of the rear support cross beams (6) is the same as that of the front support cross beams (1), and each rear support cross beam (6) is arranged between two adjacent front support cross beams (1) at intervals from front to back and is arranged in parallel with the front support cross beams (1);
the left end of each rear supporting beam (6) is fixedly connected with the upper part of a left rear supporting column (7) respectively, the left rear supporting column (7) is arranged along the vertical direction, the middle part of the top end of each left rear supporting column (7) is inserted with a left rear upper telescopic column in a clearance fit manner along the vertical direction respectively, each left rear upper telescopic column extends upwards to the upper part of the top end of the left rear supporting column (7) respectively, the middle part of the bottom end of each left rear supporting column (7) is inserted with a left rear lower telescopic column in a clearance fit manner along the vertical direction respectively, each left rear lower telescopic column extends downwards to the lower part of the bottom end of the left rear supporting column (7) respectively, and the bottom end of each left rear lower telescopic column is fixed with a left rear supporting bottom plate (8) respectively;
the right end of each rear supporting cross beam (6) is fixedly connected with the upper part of a right rear supporting column (9), the right rear supporting column (9) is arranged along the vertical direction, the middle part of the top end of each right rear supporting column (9) is inserted with a right rear upper telescopic column in a clearance fit manner along the vertical direction, each right rear upper telescopic column extends upwards to the upper part of the top end of the right rear supporting column (9), the middle part of the bottom end of each right rear supporting column (9) is inserted with a right rear lower telescopic column in a clearance fit manner along the vertical direction, each right rear lower telescopic column extends downwards to the lower part of the bottom end of the right rear supporting column (9), and the bottom end of each right rear lower telescopic column is fixed with a right rear supporting bottom supporting plate (10);
front supporting longitudinal beams (11) are arranged at the top ends of the front supporting cross beams (1) along the front-back horizontal direction, the front supporting longitudinal beams (11) are fixedly connected with the top end of each front supporting cross beam (1), and the front supporting longitudinal beams (11) are overlapped at the top ends of the rear supporting cross beams (6);
rear supporting longitudinal beams (12) are arranged at the top ends of the rear supporting cross beams (6) along the front-rear horizontal direction, the rear supporting longitudinal beams (12) are fixedly connected with the top end of each rear supporting cross beam (6), and the rear supporting longitudinal beams (12) are arranged at the top ends of the front supporting cross beams (1);
a plurality of front-detection front supporting beams (22) are arranged in front of the front supporting beam (1) at the foremost end along the left-right horizontal direction, the left side of each front-detection front supporting beam (22) is respectively connected with a piston rod of a front-detection left-front upper oil cylinder (23), the piston rod of each front-detection left-front upper oil cylinder (23) can extend upwards along the vertical direction, the upper part of the cylinder body of each front-detection left-front upper oil cylinder (23) is connected with the corresponding front supporting longitudinal beam (11) in an installing mode, the right side of each front-detection front supporting beam (22) is respectively connected with the piston rod of a front-detection right-front upper oil cylinder in an installing mode, the piston rod of each front-detection right-front upper oil cylinder can extend upwards along the vertical direction, and the upper part of the cylinder body of each front-detection right-front upper oil cylinder is connected with the corresponding front;
a plurality of front-detection rear supporting beams (25) are arranged in front of a rear supporting beam (6) at the foremost end along the left-right horizontal direction, the left side of each front-detection rear supporting beam (25) is respectively connected with a piston rod of a front-detection left-rear upper oil cylinder (26), the piston rod of each front-detection left-rear upper oil cylinder (26) can extend upwards along the vertical direction, the upper part of the cylinder body of each front-detection left-rear upper oil cylinder (26) is connected with a corresponding rear supporting longitudinal beam (12) in an installing manner, the right side of each front-detection rear supporting beam (25) is respectively connected with the piston rod of a front-detection right-rear upper oil cylinder in an installing manner, the piston rod of each front-detection right-rear upper oil cylinder can extend upwards along the vertical direction, and the upper part of the cylinder body of each front-detection right-rear upper oil cylinder is connected with the corresponding rear;
the front supporting longitudinal beam (11) and the rear supporting longitudinal beam (12) are fixedly connected through a splint component (28);
a front supporting top beam (13) is respectively arranged above each front supporting cross beam (1) along the left-right horizontal direction, the left side of each front supporting top beam (13) is respectively fixedly connected with the top end of a left front upper telescopic column, and the right side of each front supporting top beam (13) is respectively fixedly connected with the top end of a right front upper telescopic column;
a rear supporting top beam (14) is arranged above each rear supporting cross beam (6) along the left-right horizontal direction, the left side of each rear supporting top beam (14) is fixedly connected with the top end of a left rear upper telescopic column, and the right side of each rear supporting top beam (14) is fixedly connected with the top end of a right rear upper telescopic column;
a plurality of oil cylinders (15) are arranged between the adjacent front supporting cross beam (1) and the rear supporting cross beam (6), the oil cylinders (15) are arranged along the front and rear directions respectively, the cylinder body of each oil cylinder (15) is installed on the corresponding rear supporting cross beam (6) respectively, and the piston rod of each oil cylinder (15) is hinged and connected with the corresponding front supporting cross beam (1) respectively.
2. A ripper support with a forebeam as defined in claim 1, wherein: the number of the front supporting longitudinal beams (11) and the number of the rear supporting longitudinal beams (12) are 2, and 2 rear supporting longitudinal beams (12) are arranged between 2 front supporting longitudinal beams (11).
3. A ripper support with a forebeam as defined in claim 2, wherein: 2 or 3 oil cylinders (15) are arranged between the adjacent front supporting beam (1) and the rear supporting beam (6).
4. A ripper support with a forebeam as defined in claim 3, wherein: the left front supporting plate (3), the right front supporting plate (5), the right rear supporting plate (10) and the left rear supporting plate (8) are rectangular or circular, and the left front supporting plate (3), the right front supporting plate (5), the right rear supporting plate (10) and the left rear supporting plate (8) are made of steel.
5. A ripper support having a forebeam according to any one of claims 1 to 4, wherein: the left front upper telescopic column, the right front upper telescopic column, the left rear upper telescopic column, the right rear upper telescopic column, the left front lower telescopic column, the right front lower telescopic column, the left rear lower telescopic column and the right rear lower telescopic column are respectively hydraulically or electrically driven telescopic columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710704473.3A CN107642372B (en) | 2017-08-17 | 2017-08-17 | Tunneling support with forepoling bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710704473.3A CN107642372B (en) | 2017-08-17 | 2017-08-17 | Tunneling support with forepoling bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107642372A CN107642372A (en) | 2018-01-30 |
| CN107642372B true CN107642372B (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710704473.3A Expired - Fee Related CN107642372B (en) | 2017-08-17 | 2017-08-17 | Tunneling support with forepoling bar |
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| CN114278367B (en) * | 2021-12-20 | 2024-02-23 | 中国矿业大学 | Carrying device of hydraulic unit support and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900486A (en) * | 2005-07-19 | 2007-01-24 | 沈阳天安矿山机械科技有限公司 | Self-moving roadway advance support bracket |
| CN201137499Y (en) * | 2007-12-04 | 2008-10-22 | 沈阳天安矿山机械科技有限公司 | Novel advance support bracket for roadway excavation |
| CN201221371Y (en) * | 2008-07-09 | 2009-04-15 | 山西东华机械有限公司 | Double-girder double-column hydraulic support stepping apparatus |
| CN101956562B (en) * | 2009-07-13 | 2012-03-14 | 郑州四维机电设备制造有限公司 | Self-advancing gate road advance support bracket |
| PL221408B1 (en) * | 2011-06-15 | 2016-04-29 | Akademia Górniczo Hutnicza Im Stanisława Staszica W Krakowie | Temporary self-advancing supports of dog heading mine face |
| CN103195458A (en) * | 2013-03-20 | 2013-07-10 | 徐州天能矿山机械有限责任公司 | Underground coal mine large channel end socket suspension hydraulic support |
| CN103993898B (en) * | 2014-04-24 | 2017-01-04 | 泰安百益机械有限公司 | Circulating driving immediate support devices and methods therefor |
| CN103993899B (en) * | 2014-05-30 | 2017-01-04 | 山西东华机械有限公司 | Suspension roof support support |
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| CN107642372A (en) | 2018-01-30 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Tunneling support with front probe beam Effective date of registration: 20211126 Granted publication date: 20200630 Pledgee: Longkou Mining Group Thermal Power Co.,Ltd. Pledgor: LONGKOU MINING GROUP Co.,Ltd. Registration number: Y2021980013319 |
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