CN210768752U - Tunneling system with front tunneling part and rear anchoring part - Google Patents
Tunneling system with front tunneling part and rear anchoring part Download PDFInfo
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- CN210768752U CN210768752U CN201921781582.6U CN201921781582U CN210768752U CN 210768752 U CN210768752 U CN 210768752U CN 201921781582 U CN201921781582 U CN 201921781582U CN 210768752 U CN210768752 U CN 210768752U
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Abstract
The utility model discloses a tunneling system of front tunneling rear anchor, which solves the interference problem between the tunneling machine and a sliding temporary support device and the problem of downward gliding during the heavy-gradient tunneling of the tunneling machine, wherein the tunneling machine is driven by a pushing jack arranged on a reversed loader and moves along a slide way on the reversed loader; the sliding type temporary supporting device is arranged above the tunneling machine and continuously and alternately supports along with the advancing of the tunneling machine so as to realize normal tunneling in the front, and an anchor rod is arranged behind the sliding type temporary supporting device for supporting; the symmetrical side ends of the hydraulic anchor rod machine are provided with operator platforms. The utility model has the advantages that: the traveling mode of the heading machine is improved, the problem of interference between the heading machine and the sliding temporary support device is solved, the problem of downward sliding of the heading machine during heavy-slope heading is also solved, the heading speed is greatly increased, and heading and support are conducted in parallel.
Description
Technical Field
The utility model relates to a coal mining machinery specifically is a tunneling system.
Background
In the conventional coal mining tunneling system, in order to prevent the problem of interference between a tunneling machine and a sliding temporary support device, after tunneling to a certain length, tunneling needs to be stopped to perform subsequent support work, so that the tunneling speed is limited; in addition, the existing tunneling machine adopts crawler-type walking, and has the problem of gliding when tunneling in a large slope, thereby also causing obstruction to tunneling work.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a tunneling system for front tunneling and rear anchoring, which comprises a tunneling machine, a reversed loader, a sliding temporary support device and a hydraulic bolting machine;
the reversed loader comprises a landing section, a bridge-opening section, a machine head transmission part and a pushing jack;
the bridge-starting section is lapped on the landing section, and the end part of the landing section is connected with a pushing jack arranged at the end part of the bridge-starting section; the end part of the landing section is also provided with a top connection device; the bridge section is connected with the head transmission part;
the tunneling machine is arranged on a slide way of a landing section of the transfer conveyor, and two pushing jacks are further arranged on the landing section to push the fully-mechanized tunneling machine back and forth;
a sliding temporary supporting device is arranged above the tunneling machine; the sliding temporary support device comprises an inner support and an outer support, wherein telescopic beams of the inner support and the outer support are arranged in a staggered manner; the inner support and the outer support are connected with the piston ends of the support longitudinal movement jack and the up-down movement jack which are fixed on the landing section;
and a hydraulic anchor rod machine is arranged at the rear end of the temporary supporting device.
The heading machine comprises a shovel plate arranged in front of the heading machine.
And a lapping device is arranged in front of the sliding temporary supporting device.
The lower part of the tunneling rack is fixed with an upper connecting rod, the upper connecting rod is hinged with a lower connecting rod, and a hinged shaft is connected with the piston end of a limiting jack; and a tunneling head of the tunneling machine is connected with the tunneling rack through a second limiting jack.
And side anchor rod machines are arranged on two sides of the front end of the outer frame of the sliding temporary supporting device.
The hydraulic anchor rod machine and the anchor rod assisting machine are identical in structure and comprise supports, an anchor rod jack is arranged on each support, a piston end of each anchor rod jack is fixed to a lifting tray, a hydraulic motor is arranged on each lifting tray, and an output end of each hydraulic motor is fixed to a drill rod.
The symmetrical side end of the hydraulic anchor rod machine is provided with an operator platform, and the operator platform is connected with the piston end of the anchor rod jack.
The utility model has the advantages that: on the basis of the original heading machine, the traveling mode of the heading machine is improved, the original crawler traveling mode is changed into a hydraulic jack pushing mode, the problem of interference between the heading machine and a sliding temporary supporting device is solved, and the problem of downward sliding of the heading machine during large-gradient heading is also solved. The sliding temporary support device is used, the problem of timely support during tunneling of the tunneling machine is solved, normal tunneling in the front can be achieved, anchor rod support is carried out behind the sliding temporary support device, and therefore the tunneling speed can be greatly improved, and the tunneling support can be carried out in parallel.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic structural view of the bolting machine.
Detailed Description
The utility model is described in detail with the attached drawings, and as shown in the figures, the utility model comprises a heading machine 1, a reversed loader 2, a sliding temporary support device 3 and a hydraulic roof bolter 4;
the reversed loader 2 comprises a landing section 21, a bridge-starting section 22, a machine head transmission part 23 and a pushing jack 24;
the bridge-starting section 22 is lapped on the landing section 21, and the end part of the landing section 21 is connected with a pushing jack 24 arranged at the end part of the bridge-starting section; the end part of the landing section 21 is also provided with a roof connecting device 5; the bridge section is connected with a machine head transmission part 23, and a belt tail 25 is arranged below the machine head transmission part 23;
the heading machine 1 is arranged on a slide way of a landing section 21 of the reversed loader 2, two pushing jacks 6 are further arranged on the landing section 21 to push the fully-mechanized heading machine 1 forwards and backwards, and the pushing step distance is 2500 mm;
a sliding temporary supporting device 3 is arranged above the heading machine 1; the sliding temporary support device comprises an inner support and an outer support, telescopic beams of the inner support and the outer support are arranged in a staggered mode, and the telescopic beam of each support comprises a front telescopic beam 8 and a rear telescopic beam 7; the inner support and the outer support are connected with the piston ends of the support longitudinal movement jack and the up-down movement jack which are fixed on the landing section;
a hydraulic bolting machine 4 is provided at the rear end of the temporary support means.
The heading machine includes a blade 9 disposed in front of the heading machine.
And a lapping device 10 is arranged in front of the sliding temporary supporting device.
The lower part of the tunneling rack 11 is fixed with an upper connecting rod 12, the upper connecting rod 12 is hinged with a lower connecting rod 13, and a hinged shaft is connected with the piston end of a limiting jack 14; the heading head of the heading machine is connected with the heading frame 11 through a second limiting jack 15.
And the side anchor rod machines 17 are arranged on two sides of the front end of the outer frame of the sliding temporary supporting device.
The hydraulic anchor rod machine and the anchor rod side machine are identical in structure and comprise a support 41, an anchor rod jack 42 is arranged on the support 41, a piston end of the anchor rod jack 42 is fixed with a lifting tray 43, a hydraulic motor 44 is arranged on the lifting tray, and an output end of the hydraulic motor 44 is fixed with a drill rod 45.
The symmetrical side ends of the hydraulic anchor rod machine are provided with operator platforms 16, and the operator platforms are connected with the piston end of the anchor rod jack; the bolting machine may also be a commercially available product.
The working process of the utility model is as follows:
when the fully-mechanized excavating machine tunnels forwards, the forward and backward movement of the fully-mechanized excavating machine is realized by the fully-mechanized excavating machine pushing jack fixed on the landing section of the reversed loader, so that the normal tunneling can be realized when the gradient is greater than 20 degrees (the crawler-type fully-mechanized excavating machine cannot work when the gradient is greater than 20 degrees). Meanwhile, the shovel plate part and the reversed loader move along with the forward movement of the roadheader under the action of the pushing device, so that coal cut by the roadheader can be timely loaded and transported away. After the elevating conveyor and the shovel plate part are pushed forwards by a step (1.6 meters), one of the jacking devices of the pushing devices is lowered, the pushing jack is retracted to move the jacking device forwards by 1.6 meters, the supporting top plate is raised, and then the other jacking device is moved forwards by 1.6 meters by the same method to prepare for pushing of the elevating conveyor and the shovel plate part in the next cycle. When the tunnel is excavated in an uphill, one of the roof connecting devices is ensured to be firm when the other roof connecting device moves forwards, so that the reversed loader and the shovel plate part are prevented from sliding downwards.
After one tunneling step (1.6 m) is finished, a set of net laying devices are arranged on two sides of an outer support of the sliding type temporary supporting device, a jack is lowered to lay a metal net on the net and connect the metal net with the previous net, and then the jack is raised to lift the net, so that the net laying work is finished.
Meanwhile, the outer support of the sliding type temporary supporting device lowers the top beam, lifts the ground feet, moves forwards by a step distance (1.6 m) along the longitudinal beams of the inner support under the action of the support pushing jack, then raises the top beam, lowers the ground feet and supports the top bottom plate, and at the moment, the inner support always supports the top bottom plate; then, the top beam of the inner support is lowered, the ground feet are lifted, the longitudinal beams of the outer support move forwards by a step distance (1.6 m) under the action of a support pushing jack, the top beam is raised, the ground feet are lowered, the top bottom plate is supported, and the outer support supports the top bottom plate all the time. Namely, the tunneling work of one step is completed.
Then, 5 sets of hydraulic bolting machines and automatic lifting devices are arranged behind the sliding type temporary supporting device, after the fully-mechanized excavating machine finishes excavating in one step, the sliding type temporary supporting device also finishes the temporary supporting work of a top plate in one step, the empty top distance of 1.6 meters is left behind, and at the moment, the 5 sets of hydraulic bolting machines can work simultaneously and can finish the bolting work rapidly. If the row spacing of the anchor rods is 0.8 m, two rows of top anchor rods can be drilled in one cycle.
The anchor rod machines are arranged on two sides of the front end (the left side of the attached drawing) of the outer frame of the sliding temporary supporting device, 2-3 anchor rods can be drilled on the upper parts of coal sides of two sides in time when the temporary supporting device does not move, and the rest anchor rods can be repaired behind the temporary supporting device.
Thus, one cycle of digging before anchoring is completed.
Certainly, in order to increase the tunneling speed, the fully-mechanized tunneling machine cuts coal, the shovel plate part loads coal, the transfer machine carries the coal, the sliding temporary support device and the transfer machine push forwards, and the anchor rod is driven at the back, and the like are all continuous operations at one time, and each link in the middle cannot be stopped until the work in the current shift is finished, and the work is handed to the next shift to continue the same work.
Claims (7)
1. The utility model provides a tunnelling system of anchor after preceding tunnelling which characterized in that: the device comprises a tunneling machine, a reversed loader, a sliding temporary supporting device and a hydraulic anchor rod machine;
the reversed loader comprises a landing section, a bridge-opening section, a machine head transmission part and a pushing jack;
the bridge-starting section is lapped on the landing section, and the end part of the landing section is connected with a pushing jack arranged at the end part of the bridge-starting section; the end part of the landing section is also provided with a top connection device; the bridge section is connected with the head transmission part;
the tunneling machine is arranged on a slide way of a landing section of the transfer conveyor, and two pushing jacks are further arranged on the landing section to push the fully-mechanized tunneling machine back and forth;
a sliding temporary supporting device is arranged above the tunneling machine; the sliding temporary support device comprises an inner support and an outer support, wherein telescopic beams of the inner support and the outer support are arranged in a staggered manner; the inner support and the outer support are connected with the piston ends of the support longitudinal movement jack and the up-down movement jack which are fixed on the landing section;
and a hydraulic anchor rod machine is arranged at the rear end of the temporary supporting device.
2. The tunneling system for front tunneling and rear anchoring according to claim 1, wherein: the heading machine comprises a shovel plate arranged in front of the heading machine.
3. The tunneling system for front tunneling and rear anchoring according to claim 1, wherein: and a lapping device is arranged in front of the sliding temporary supporting device.
4. The tunneling system for front tunneling and rear anchoring according to claim 1, wherein: the lower part of the tunneling rack is fixed with an upper connecting rod, the upper connecting rod is hinged with a lower connecting rod, and a hinged shaft is connected with the piston end of a limiting jack; and a tunneling head of the tunneling machine is connected with the tunneling rack through a second limiting jack.
5. The tunneling system for front tunneling and rear anchoring according to claim 1, wherein: and side anchor rod machines are arranged on two sides of the front end of the outer frame of the sliding temporary supporting device.
6. The tunneling system for front tunneling and rear anchoring according to claim 1, wherein: the hydraulic anchor rod machine and the anchor rod assisting machine are identical in structure and comprise supports, an anchor rod jack is arranged on each support, a piston end of each anchor rod jack is fixed to a lifting tray, a hydraulic motor is arranged on each lifting tray, and an output end of each hydraulic motor is fixed to a drill rod.
7. The tunneling system for front tunneling and rear anchoring according to claim 6, wherein: the symmetrical side end of the hydraulic anchor rod machine is provided with an operator platform, and the operator platform is connected with the piston end of the anchor rod jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781582.6U CN210768752U (en) | 2019-10-21 | 2019-10-21 | Tunneling system with front tunneling part and rear anchoring part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781582.6U CN210768752U (en) | 2019-10-21 | 2019-10-21 | Tunneling system with front tunneling part and rear anchoring part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210768752U true CN210768752U (en) | 2020-06-16 |
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ID=71045647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921781582.6U Active CN210768752U (en) | 2019-10-21 | 2019-10-21 | Tunneling system with front tunneling part and rear anchoring part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210768752U (en) |
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2019
- 2019-10-21 CN CN201921781582.6U patent/CN210768752U/en active Active
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