CN217055177U - A conical groove coring drill frame for tunnel excavation - Google Patents
A conical groove coring drill frame for tunnel excavation Download PDFInfo
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- CN217055177U CN217055177U CN202220761074.7U CN202220761074U CN217055177U CN 217055177 U CN217055177 U CN 217055177U CN 202220761074 U CN202220761074 U CN 202220761074U CN 217055177 U CN217055177 U CN 217055177U
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Abstract
The utility model discloses a conical groove core drill frame for tunnel excavation, which comprises a large disk gear track and a small disk gear track which are coaxially arranged and are distributed at intervals, wherein a support shaft is connected between the centers of the large disk gear track and the small disk gear track; the large disk gear track and the small disk gear track are respectively provided with a rotatable adjusting device which rotates along the circumferential part of the large disk gear track and the circumferential part of the small disk gear track; a drilling machine track groove is arranged between the two rotatable adjusting devices; and a mechanical arm interface device is arranged at one end of the supporting shaft close to the large disk gear track, and a small positioning drill bit is arranged at one end of the supporting shaft close to the small disk gear track. The utility model discloses can help the operation personnel to excavate out the toper cavity on the tunnel excavation face, the creation faces the free face, when the static broken operation of carrying out follow-up tunnel rock, makes the rock change the breakage.
Description
Technical Field
The utility model relates to a tunnel rock excavation technical field especially relates to a conical groove coring drill frame for tunnel excavation construction.
Background
At present, tunnel rock excavation is mainly divided into blasting excavation, mechanical excavation, static crushing excavation (also called static blasting) and other modes. Among them, static crushing is a method which has to be adopted in a region where vibration and noise are strictly controlled. When the traditional static crushing excavation method is adopted, a drill hole with a certain depth needs to be drilled in the rock, then a static crushing agent is added into the hole, and the pressure applied on the wall of the hole by the crushing agent causes the fracture of the rock. However, when a tunnel is excavated, because the periphery of the rock to be excavated is restrained and only the face surface is provided, the rock is difficult to be cracked by the pressure generated by the expanding agent in the drill hole, so that it is necessary to excavate a cavity in advance in the center of the tunnel to form the face surface. And excavation cavity through whole cutting's mode needs large-scale machinery, and efficiency is very low, can be through installing traditional rig on the tapered drill frame for this reason, help rig accurate positioning, through linking to each other drilling and drilling, excavate conical rock, and then form conical cavity, provide face the free face for follow-up static crushing operation.
SUMMERY OF THE UTILITY MODEL
When the static broken excavation of current tunnel, be difficult to put the excavation cavity in order to provide the required face problem of static breakage in face central point in advance, the utility model aims to solve the technical problem that a toper groove coring drill frame for tunnel excavation is provided, its simple structure can help the operation personnel to excavate out the toper cavity on the tunnel face in order to create and face the face, when the static broken excavation operation of carrying out follow-up tunnel, makes the rock change breakage.
In order to achieve the purpose, the utility model provides a conical groove coring drill frame for tunnel excavation, which comprises a large disk gear track and a small disk gear track which are coaxially arranged and distributed at intervals, wherein a supporting shaft is connected between the centers of the large disk gear track and the small disk gear track; the large disk gear track and the small disk gear track are respectively provided with a rotatable adjusting device which rotates along the circumferential part of the large disk gear track and the circumferential part of the small disk gear track; a drilling machine track groove is arranged between the two rotatable adjusting devices; and a mechanical arm interface device is arranged at one end of the supporting shaft close to the large disk gear track, and a small positioning drill bit is arranged at one end of the supporting shaft close to the small disk gear track.
Preferably, the outer circumferential surfaces of the circumferential portions of the large and small disk gear tracks have outer ring gears.
Furthermore, the rotatable adjusting device comprises a rotating frame sleeved on the circumferential parts of the large disk gear track and the small disk gear track, and a rotating gear in meshed connection with the outer ring gear and a track roller in rolling connection with the inner side circumferential surfaces of the circumferential parts of the large disk gear track and the small disk gear track are arranged in the rotating frame.
Preferably, inner circumferential surfaces of circumferential portions of the large and small disk gear rails have circular rail grooves in which the rail rollers are defined.
Furthermore, the supporting shaft is provided with a connecting rod which is perpendicular to the axis of the supporting shaft and is connected with the inner side peripheral surfaces of the circumferential parts of the large disk gear track and the small disk gear track.
Optionally, the number of the rotatable adjusting devices is an even number of at least four, and the drilling machine track groove is installed between two rotatable adjusting devices which are arranged oppositely and respectively located on the large disc gear track and the small disc gear track.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) simple structure, modular manufacture and low cost.
(2) Grooving operations can be accomplished using conventional percussion drilling machines.
(3) The control and the operation are simple.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiment or the prior art description will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts.
Fig. 1 is a schematic structural view of a conical groove core drill rig for tunnel excavation according to the present invention;
fig. 2 is an internal structure view of the rotatable adjusting device of the present invention.
In the figure: the drilling machine comprises a large-disc gear track, a small-disc gear track, a supporting shaft, a first rotatable adjusting device, a second rotatable adjusting device, a mechanical arm interface device, a small positioning drill bit, a drilling machine track groove, a connecting rod, a rotating gear and a track roller, wherein the large-disc gear track is 1, the small-disc gear track is 2, the supporting shaft is 3, the first rotatable adjusting device is 4, the second rotatable adjusting device is 5, the mechanical arm interface device is 6, the small positioning drill bit is 7, the drilling machine track groove is 8, the connecting rod is 9, the rotating gear is 10, and the track roller is 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The tapered groove core drill rig for tunnel excavation according to the present invention will be described in detail with reference to fig. 1 to 2.
The utility model discloses a conical groove core drill frame for tunnel excavation includes coaxial setting and interval distribution's big disk gear track 1 and small disk gear track 2, install back shaft 3 between two disk gear orbital centers, install on big disk gear track 1 and along the first rotatable adjusting device 4 of big disk gear track 1's circumference part pivoted, install on small disk gear track 2 and along the rotatable adjusting device 5 of the circumference part pivoted of small disk gear track 2, the structure of the rotatable adjusting device 5 of first rotatable adjusting device 4 and second is the same, install rig track groove 8 between the rotatable adjusting device 5 of first rotatable adjusting device 4 and second. One end of the supporting shaft 3 close to the large disc gear track 1 is provided with a mechanical arm interface device 6, and one end of the supporting shaft 3 close to the small disc gear track 2 is provided with a small positioning drill bit 7.
The outer circumferential surfaces of the circumferential portions of the large disk gear track 1 and the small disk gear track 2 have outer ring gears. As shown in fig. 2, each rotatable adjusting device is provided therein with two rotating gears 10 and two track rollers 11 for rotating the adjusting device. The rotating gear 10 and the track roller 11 are installed in a rotating frame, the rotating frame is sleeved on the circumferential parts of the large disk gear track 1 and the small disk gear track 2, wherein the rotating gear 10 is in meshed connection with the outer ring gear, and the track roller 11 is in rolling connection with the inner side circumferential surfaces of the circumferential parts of the large disk gear track 1 and the small disk gear track 2.
In order to make the rail roller 11 more stably slide on the inner side of the disk gear rail, the inner circumferential surfaces of the circumferential portions of the large and small disk gear rails 1 and 2 have circular rail grooves in which the roller is defined.
In addition, the supporting shaft 3 is provided with a connecting rod 9 which is perpendicular to the axis of the supporting shaft 3 and is connected with the inner side peripheral surface of the circumferential part of the large disk gear track 1 and the small disk gear track 2, so that the stability of the whole conical groove core drilling frame is improved.
It is easy to understand, also can be greater than two multiunit rig track grooves 8 between two disk gear tracks, be no less than respectively install a set of rig on two sets of rig track grooves 8 respectively, make each rig be certain angle and punch the operation, punch the efficiency height.
The working principle of the conical groove core drilling rig for tunnel excavation according to the present invention is described below with reference to fig. 1 to 2 in combination with the description of the above-mentioned structural technical features:
when core taking operation is carried out on the tunnel face of the tunnel, a group of drilling machines (or rock drilling machines) are respectively arranged on the two drilling machine track grooves 8, and an angle is formed between the two groups of drilling machines. The small positioning drill bit 7 is started to drill and position, two groups of drilling machines on the drilling machine track grooves 8 are started immediately to perform drilling operation, and after one group of drilling is finished, the first rotatable adjusting device 4 and the second rotatable adjusting device 5 are rotated around the supporting shaft 3 to adjust the positions, so that the drilling positions of the drilling machines are adjusted. Finally, after one circle of operation is carried out according to the above, a conical body can be intercepted from the center of the tunnel face, then static crushing agent is injected into the circle around the conical body for static blasting, the crushing process can be more sufficient and thorough due to the fact that the middle part does not have a supporting surface, and a good free face can be provided for a static splitter or a breaking hammer to rapidly crush the residual rocks around the conical groove.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can understand that the changes or substitutions obtained within the technical scope of the present invention should be covered within the scope of the present invention.
Claims (6)
1. The utility model provides a conical groove coring drill frame for tunnel excavation which characterized in that: the gear rack comprises a large disk gear track and a small disk gear track which are coaxially arranged and distributed at intervals, wherein a supporting shaft is connected between the centers of the large disk gear track and the small disk gear track;
the large disk gear track and the small disk gear track are respectively provided with a rotatable adjusting device which rotates along the circumferential part of the large disk gear track and the circumferential part of the small disk gear track;
a drill track groove is arranged between the two rotatable adjusting devices;
and a mechanical arm interface device is arranged at one end of the supporting shaft close to the large disk gear track, and a small positioning drill bit is arranged at one end of the supporting shaft close to the small disk gear track.
2. The tapered groove coring drill rig for tunnel excavation of claim 1, wherein outer circumferential surfaces of circumferential portions of the large and small disk gear tracks have outer ring gears.
3. The tapered groove core drill rig for tunnel excavation as claimed in claim 2, wherein the rotatable adjustment means includes a turret that is fitted over a circumferential portion of the large and small disk gear tracks, and a rotating gear that is in meshing connection with the outer ring gear and a track roller that is in rolling connection with an inner circumferential surface of the circumferential portion of the large and small disk gear tracks are provided in the turret.
4. The tapered groove coring drill stand for tunnel excavation according to claim 3, wherein inner circumferential surfaces of circumferential portions of the large and small disk gear rails have circular rail grooves in which the rail rollers are defined.
5. The tapered groove coring drill rig for tunnel excavation according to claim 1, wherein a connecting rod perpendicular to an axis of the support shaft and connected to inner circumferential surfaces of circumferential portions of the large and small disk gear rails is provided on the support shaft.
6. The tapered slot coring drill rig for tunnel excavation according to any one of claims 1 to 5, wherein the number of rotatable adjustment devices is an even number of at least four, the drill track slots being mounted between two oppositely disposed rotatable adjustment devices on the large and small disc gear tracks respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220761074.7U CN217055177U (en) | 2022-04-02 | 2022-04-02 | A conical groove coring drill frame for tunnel excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220761074.7U CN217055177U (en) | 2022-04-02 | 2022-04-02 | A conical groove coring drill frame for tunnel excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217055177U true CN217055177U (en) | 2022-07-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220761074.7U Active CN217055177U (en) | 2022-04-02 | 2022-04-02 | A conical groove coring drill frame for tunnel excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217055177U (en) |
-
2022
- 2022-04-02 CN CN202220761074.7U patent/CN217055177U/en active Active
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