Efficient multi-stage anchor rod drilling equipment and roadway excavation equipment

Abstract

The utility model belongs to mining equipment, in particular to the technical field of anchor rod supporting equipment, and particularly relates to efficient multi-stage anchor rod drilling equipment and roadway excavation equipment. The equipment comprises a drilling machine ring beam, an anchor rod drilling machine and an anchor rod assembly; the drilling machine ring beam is arranged on the front side and the rear side or the interior of a supporting shield of roadway excavation equipment, and the drilling machine ring beam is provided with an arc-shaped rail face. The anchor rod drilling machine is arranged on the drilling machine ring beam in a sliding mode along the arc-shaped rail face, the anchor rod drilling machine comprises a drilling machine walking base, a drilling machine arm and a drilling machine head, the drilling machine walking base enables the drilling machine arm to move along the arc-shaped rail face and suspend at the current moving position, and the anchor rod assembly is arranged on the drilling machine head. The anchor rod drilling equipment has a large operation angle range, a drill rod meeting the operation length can be conveniently installed, an anchor rod hole with the needed depth can be drilled at a time, a middle connecting rod is not needed, and the supporting operation efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining equipment, especially the bolt support equipment, and particularly relates to an efficient multi-stage bolt drilling equipment and a roadway excavation equipment. Background Art

[0002] A bolt drill is a drilling tool in the bolt support work of a coal mine roadway. When drilling a bolt, the bolt needs to be driven into a certain depth along the normal direction of the drilling surface to achieve the expected anchoring effect.

[0003] However, the current bolt drills have relatively short strokes. During the support operation, the rods need to be connected multiple times, which is time-consuming and has low support efficiency. At the same time, there are relatively large safety hazards in the long-term empty roof; and due to the large duty cycle of the existing support system, it can only be placed behind the shield body and behind the shield, resulting in too large a distance between the support surface of the support system and the excavation surface, and it is impossible to achieve low-clearance support, increasing the possibility of surrounding rock convergence and collapse. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an efficient multi-stage bolt drilling equipment and a roadway excavation equipment to solve the problems of the short drilling stroke of the bolt drill in the prior art, the long drilling operation time, the low support efficiency, and the inability to achieve low-clearance support.

[0005] One solution of the utility model provides an efficient multi-stage bolt drilling equipment, which is applied to a roadway excavation equipment and includes a drill ring beam, a bolt drill, and a bolt assembly;

[0006] The drill ring beam is arranged on the front and back sides or inside of the support shield of the roadway excavation equipment, and the drill ring beam is provided with an arc-shaped track surface;

[0007] The bolt drill is slidably arranged on the drill ring beam along the arc-shaped track surface. The bolt drill includes a drill walking base, a drill arm, and a drill head. The drill walking base is movably connected to the drill ring beam, the drill head is connected to the drill walking base through the drill arm, and the drill walking base is used to move the drill arm along the arc-shaped track surface and hover at the current moving position;

[0008] The bolt assembly is arranged on the drill head.

[0009] In one solution of the utility model, the drill arm includes a plurality of drill telescopic arms, and the plurality of drill telescopic arms are sequentially slidably telescoped and connected. The drill telescopic arms are configured to adjust between the extended state and the retracted state; the first drill telescopic arm is connected to the drill walking base, and the last drill telescopic arm is connected to the drill head;

[0010] Wherein, the first section of the drilling rig telescopic arm is fixedly connected to the drilling rig walking base, or the first section of the drilling rig telescopic arm is rotatably connected to the drilling rig walking base.

[0011] In one solution of the utility model, it further comprises a movable working platform, wherein the movable working platform is arranged below the anchor drilling rig;

[0012] The movable working platform includes a platform fixing frame, a driving device and a movable plate. The platform fixing frame is arranged at the bottom of the inner ring surface of the drilling rig ring beam, one end of the driving device is fixedly connected to the platform fixing frame, and the other end of the driving device is transmission-arranged below the movable plate. The movable plate is movably connected to the platform fixing frame through the driving device.

[0013] In one of the schemes of the utility model, the platform fixing frame is provided with a sliding guide rail, and the movable plate is slidably connected to the sliding guide rail, so that when the driving device is running, the movable plate is parallelly moved to a preset position along the sliding direction, so that the movable working platform forms an avoidance space at the projection position of the anchor drilling rig;

[0014] Alternatively, the movable plate is reset in parallel along the sliding direction from a preset position when the driving device is running, so that the movable working platform forms a horizontal working platform at the projected position of the anchor drilling rig.

[0015] In one of the schemes of the utility model, the platform fixing frame is provided with a rotating shaft, and the movable plate is rotatably connected to the rotating shaft, so that when the driving device is running, the movable plate is rotated along the rotating shaft to a preset position, so that the platform fixing frame forms an avoidance space at the projection position of the anchor drilling rig;

[0016] Alternatively, the movable plate is used to rotate and reset along the rotating shaft when the driving device is running, so that the movable working platform forms a horizontal working platform at the projected position of the anchor drilling rig.

[0017] In one of the schemes of the utility model, the drilling rig walking base also includes a translation expansion track and a secondary walking base, the translation expansion track is arranged in the vertical direction of the drilling rig ring beam, and the secondary walking base is movably connected along the translation expansion track;

[0018] The drilling rig arm is arranged on the secondary walking base.

[0019] In one of the solutions of the utility model, the drilling rig ring beam is symmetrically arranged along the central axis of the tunnel excavation equipment;

[0020] And / or, the arc angle of the arc track surface is 180° to 270°.

[0021] In one embodiment of the present utility model, a rack is provided on the arc-shaped track surface, and the drilling rig traveling base is meshed and connected with the rack;

[0022] And / or, a plurality of positioning holes are provided on the annular bracket, and the drilling rig traveling base is positioned and connected with the positioning holes.

[0023] In one embodiment of the present utility model, the drilling rig head includes a connecting base and a drill string module. The connecting base is connected to the drilling rig arm, and the drill string module is arranged on the connecting base.

[0024] In one embodiment of the present utility model, a roadway excavation equipment is also provided, which includes an excavation cutter head, a support shield, a main shaft, and a multi-stage anchor rod drilling device; the support shield is arranged behind the excavation cutter head, the support shield is movably connected with the excavation cutter head through the main shaft, the main shaft is arranged at the bottom of the support shield, and the multi-stage anchor rod drilling device is arranged on the front and rear sides or inside of the support shield; the multi-stage anchor rod drilling device is an efficient multi-stage anchor rod drilling device according to any one of the above-mentioned embodiments.

[0025] The efficient multi-stage anchor rod drilling device and the roadway excavation equipment provided by the present utility model can achieve the following technical effects:

[0026] 1. Through the anchor rod drilling rig system formed by the drilling rig ring beam and the anchor rod drilling rig, the anchor rod drilling rig can rotate to any angle on the arc-shaped track surface of the drilling rig ring beam and hover at the current rotation angle position, which is convenient for increasing the operation range of the anchor rod drilling rig. At the same time, the space occupied by the anchor rod drilling device is small. By arranging the anchor rod drilling device at multiple positions of the support shield, the distance between the support surface of the support system and the driving face is avoided from being too large, eliminating potential safety hazards;

[0027] 2. Through the design of the drilling rig arm in which several sections of drilling rig telescopic arms are sequentially slidably and telescopically connected, the drilling operation can be completed more efficiently, the support effect can be improved, the support cost can be reduced, the roadway forming speed can be accelerated, the auxiliary transportation volume can be reduced, and the labor intensity can be alleviated;

[0028] 3. After the movable working platform under the drilling rig ring beam is retracted, space is provided for the drilling rig telescopic arm to extend to the required working length, which is convenient for installing drill rods that meet the working length. The required depth of the anchor rod hole can be drilled at one time without intermediate rod connection, effectively improving the support operation efficiency, shortening the support operation time, and also accelerating the driving speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0030] Figure 1 It shows a front structural schematic diagram of the bolt drilling device of the present invention;

[0031] Figure 2 It shows a side structural schematic diagram of the bolt drilling device of the present invention;

[0032] Figure 3 It shows a structural schematic diagram of the bolt drilling device of the present invention with the drill telescopic arm in the extended state;

[0033] Figure 4 It shows a structural schematic diagram of the bolt drilling device of an embodiment in Embodiment 2 of the present invention;

[0034] Figure 5 It shows a structural schematic diagram of the bolt drilling device of an embodiment in Embodiment 3 of the present invention;

[0035] Figure 6 It shows a structural schematic diagram of the roadway excavation equipment of the present invention;

[0036] Figure 7 It shows a structural schematic diagram of the bolt drilling device in the roadway excavation equipment from one perspective of the present invention;

[0037] Figure 8 It shows a structural schematic diagram of the bolt drilling device in the roadway excavation equipment from another perspective of the present invention.

[0038] The description of the attached drawing reference numerals is as follows:

[0039] 1 - Drilling rig ring beam; 101 - Arc track surface; 102 - Rack; 2 - Bolt drilling rig; 201 - Drilling rig walking base; 2011 - Translation expansion track; 2012 - Secondary walking base; 202 - Drilling rig arm; 2021 - Drilling rig telescopic arm; 203 - Drilling rig head; 2031 - Connection base; 2032 - Drill string module; 3 - Bolt assembly; 4 - Movable working platform; 401 - Platform fixing frame; 402 - Driving device; 403 - Movable plate; 404 - Sliding guide rail; 405 - Rotating shaft; 5 - Excavation cutter head; 6 - Supporting shield; 7 - Main shaft. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0041] Embodiment 1

[0042] Please refer to Figures 1 - 3 , the embodiment of the present utility model provides an efficient multi-stage anchor rod drilling device, which is applied to a roadway excavation device, including a drilling rig ring beam 1, an anchor rod drilling rig 2, and an anchor rod assembly 3; the drilling rig ring beam 1 is arranged on the front and rear sides or inside of the support shield 6 of the roadway excavation equipment, and the drilling rig ring beam 1 is provided with an arc-shaped track surface 101;

[0043] The anchor rod drilling rig 2 is slidably arranged on the drilling rig ring beam 1 along the arc-shaped track surface 101. The anchor rod drilling rig 2 includes a drilling rig walking base 201, a drilling rig arm 202, and a drilling rig head 203. The drilling rig walking base 201 is movably connected to the drilling rig ring beam 1. The drilling rig head 203 is connected to the drilling rig walking base 201 through the drilling rig arm 202. The drilling rig walking base 201 is used to move the drilling rig arm 202 along the arc-shaped track surface 101 and hover at the current moving position; the anchor rod assembly 3 is arranged on the drilling rig head 203.

[0044] The drilling rig arm 202 includes several sections of drilling rig telescopic arms 2021, and several sections of the drilling rig telescopic arms 2021 are sequentially slidably and telescopically connected. The drilling rig telescopic arms 2021 are configured to adjust between an extended state and a retracted state; the first section of the drilling rig telescopic arm 2021 is connected to the drilling rig walking base 201, and the last section of the drilling rig telescopic arm 2021 is connected to the drilling rig head 203;

[0045] Among them, the first section of the drilling rig telescopic arm 2021 is fixedly connected to the drilling rig walking base 201, or the first section of the drilling rig telescopic arm 2021 is rotatably connected to the drilling rig walking base 201.

[0046] The high-efficiency multi-stage anchor drilling equipment also includes a movable working platform 4, which is arranged below the anchor drilling rig 2; the movable working platform 4 includes a platform fixing frame 401, a driving device 402 and a movable plate 403, the platform fixing frame 401 is arranged at the bottom of the inner ring surface of the drilling rig ring beam 1, one end of the driving device 402 is fixedly connected to the platform fixing frame 401, and the other end of the driving device 402 is transmission-arranged below the movable plate 403, and the movable plate 403 is movably connected to the platform fixing frame 401 through the driving device 402.

[0047] In this embodiment, the anchor drilling rig system is formed by the drilling rig ring beam 1 and the anchor drilling rig 2. The anchor drilling rig 2 can be rotated to any angle on the arc-shaped track surface 101 of the drilling rig ring beam 1 and hover at the current rotation angle position, which is convenient for increasing the operating range of the anchor drilling rig 2. At the same time, the space occupied by the anchor drilling equipment is small. By arranging the anchor drilling equipment at multiple positions of the supporting shield 6, the distance between the support surface and the excavation surface of the support system is avoided to be too large, thereby eliminating safety hazards. At the same time, the design of the drilling arm 202 connected by sliding and telescopically connecting several sections of the drilling rig telescopic arms 2021 in sequence can complete the drilling operation more efficiently, improve the support effect, reduce the support cost, speed up the tunneling speed, reduce the auxiliary transportation volume, and reduce the labor intensity.

[0048] Example 2

[0049] Please refer to Figure 4 On the basis of Example 1, the platform fixing frame 401 is provided with a sliding guide rail 404, and the movable plate 403 is slidably connected to the sliding guide rail 404, so that when the driving device 402 is running, the movable plate 403 moves parallel to a preset position along a sliding direction, so that the movable working platform 4 forms an avoidance space at the projection position of the anchor drilling machine 2;

[0050] In another application scenario of this embodiment, when the driving device 402 is running, the movable plate 403 is reset in parallel from a preset position along the sliding direction, so that the movable working platform 4 forms a horizontal working platform at the projection position of the anchor drilling rig 2.

[0051] In this embodiment, after the movable working platform 4 located at the lower part of the drilling rig ring beam 1 is retracted, space is provided for the drilling rig telescopic arm 2021 to extend to the required working length, which facilitates the installation of a drill rod that meets the working length. The anchor hole of the required depth can be drilled in one time without the need for intermediate connecting rods, which effectively improves the support operation time and speeds up the excavation speed.

[0052] Example 3

[0053] Please refer to Figure 5, on the basis of Embodiment 1, the platform fixing frame 401 is provided with a rotating shaft 405, and the movable plate 403 is rotatably connected to the rotating shaft 405, and is used for the movable plate 403 to rotate along the rotating shaft 405 to a preset position when the driving device 402 operates, so that an avoidance space is formed at the projection position of the platform fixing frame 401 on the bolt drill 2;

[0054] In another application scenario of this embodiment, when the driving device 402 operates, the movable plate 403 rotates and resets along the rotating shaft 405, so that a horizontal working platform is formed at the projection position of the movable working platform 4 on the bolt drill 2.

[0055] In this embodiment, after the movable working platform 4 under the drilling rig ring beam 1 is turned downwards, it provides space for the drilling rig telescopic arm 2021 to extend to the required working length, facilitating the installation of drill pipes that meet the working length, and the bolt holes with the required depth can be drilled in one go without intermediate rod connection, effectively improving the support operation time and also accelerating the tunneling speed.

[0056] At the same time, the downwardly turned movable plate 403 can be used as a guide plate to guide dust and muck to fall into the muck backfilling channel below the roadway excavation equipment when the excavation cutter head 51 is tunneling or the bolt drill 2 is drilling.

[0057] Embodiment 4

[0058] Please refer to Figure 7 and Figure 8 , on the basis of any one of Embodiments 1-3, the drilling rig walking base 201 further includes a translation expansion track 2021 and a secondary walking base 2022. The translation expansion track 2021 is arranged in the vertical direction of the drilling rig ring beam 1, and the secondary walking base 2022 is movably connected along the translation expansion track 2021; the drilling rig arm 202 is arranged on the secondary walking base 2022;

[0059] The drilling rig ring beam 1 is symmetrically arranged about the center axis of the roadway excavation equipment; the arc angle of the arc track surface 101 is 180° to 270°;

[0060] A rack 102 is arranged on the arc track surface 101, and the drilling rig walking base 201 is meshed and connected with the rack 102;

[0061] A plurality of positioning holes are arranged on the annular bracket, and the drilling rig walking base 201 is connected with the positioning holes in a positioning manner;

[0062] The drill head 203 includes a connecting base 2031 and a drill string module 2032. The connecting base 2031 is connected to the drilling rig arm 202, and the drill string module 2032 is arranged on the connecting base 2031.

[0063] In this embodiment, the bolt drill 2 is meshed and connected with the rack 102 so that the bolt drill 2 can move freely and be fixed on the arc-shaped track surface 101, and the setting of the positioning holes can further enhance the fixing effect; the bolt drilling direction of the bolt drilling equipment is configured to coincide with the normal direction of the inner wall of the roadway excavated by the roadway excavation equipment.

[0064] Embodiment 5

[0065] Please refer to Figures 6 - 8 , a roadway excavation equipment, including an excavation cutter head 5, a support shield 6, a main shaft 7 and a multi-stage bolt drilling equipment; the support shield 6 is arranged behind the excavation cutter head 5, the support shield 6 is movably connected with the excavation cutter head 5 through the main shaft 7, the main shaft 7 is arranged at the bottom of the support shield 6, and the multi-stage bolt drilling equipment is arranged on the front and rear sides or inside of the support shield 6; the multi-stage bolt drilling equipment is an efficient multi-stage bolt drilling equipment according to any one of the above-mentioned multiple solutions.

[0066] In this embodiment, by arranging the main beam at the bottom of the support shield 6, the problem that the single bolt drilling distance of the bolt drill 2 is limited by the main shaft 7 when the main shaft 7 is arranged at the center is solved; the single bolt drilling distance of the bolt drill 2 is increased, so that the single bolt drilling distance of the bolt drill 2 is greater than the radius of the support shield 6, effectively shortening the time required for the bolt driving operation.

[0067] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An efficient multi-stage bolt drilling device, which is applied to roadway excavation equipment, is characterized in that It comprises a drilling rig ring beam (1), an anchor drilling rig (2) and an anchor assembly (3); The drilling rig ring beam (1) is arranged on the front and rear sides or inside of a support shield (6) of a tunnel excavation equipment, and the drilling rig ring beam (1) is provided with an arc-shaped track surface (101); The anchor drilling rig (2) is slidably arranged on the drilling rig ring beam (1) along the arc-shaped track surface (101), the anchor drilling rig (2) comprises a drilling rig walking base (201), a drilling rig arm (202) and a drilling rig head (203), the drilling rig walking base (201) is movably connected to the drilling rig ring beam (1), the drilling rig head (203) is connected to the drilling rig walking base (201) via the drilling rig arm (202), and the drilling rig walking base (201) is used to enable the drilling rig arm (202) to move along the arc-shaped track surface (101) and to hover at a current moving position; The anchor rod assembly (3) is arranged on the drilling head (203).

2. The high-efficiency multi-stage anchor rod drilling-in device according to claim 1, wherein, The drilling rig arm (202) comprises a plurality of sections of drilling rig telescopic arms (2021), wherein the plurality of sections of the drilling rig telescopic arms (2021) are slidably and telescopically connected in sequence, and the drilling rig telescopic arms (221) are configured to be adjusted between an extended state and a retracted state; the first section of the drilling rig telescopic arm (2021) is connected to the drilling rig walking base (201), and the last section of the drilling rig telescopic arm (2021) is connected to the drilling rig head (203); The first section of the drilling rig telescopic arm (2021) is fixedly connected to the drilling rig walking base (201), or the first section of the drilling rig telescopic arm (2021) is rotatably connected to the drilling rig walking base (201).

3. The highly efficient multi-stage anchor rod drilling-in device according to claim 2, wherein, It also comprises a movable working platform (4), wherein the movable working platform (4) is arranged below the anchor drilling machine (2); The movable working platform (4) comprises a platform fixing frame (401), a driving device (402) and a movable plate (403); the platform fixing frame (401) is arranged at the bottom of the inner ring surface of the drilling rig ring beam (1); one end of the driving device (402) is fixedly connected to the platform fixing frame (401); the other end of the driving device (402) is transmission-arranged below the movable plate (403); and the movable plate (403) is movably connected to the platform fixing frame (401) through the driving device (402).

4. The high-efficiency multi-stage anchor rod drilling-in device according to claim 3, characterized in that, The platform fixing frame (401) is provided with a sliding guide rail (404), and the movable plate (403) is slidably connected to the sliding guide rail (404), so as to enable the movable plate (403) to move parallel to a preset position along a sliding direction when the driving device (402) is running, so that the movable working platform (4) forms an avoidance space at the projection position of the anchor drilling machine (2); Alternatively, the movable plate (403) is reset in parallel from a preset position along a sliding direction when the driving device (402) is in operation, so that the movable working platform (4) forms a horizontal working platform at the projected position of the anchor drilling machine (2).

5. The high-efficiency multi-stage anchor rod drilling-in device according to claim 4, wherein, The platform fixing bracket (401) is provided with a rotating shaft (405), and the movable plate (403) is rotatably connected to the rotating shaft (405) and is used for the movable plate (403) to rotate along the rotating shaft (405) to a preset position when the driving device (402) operates, so as to form an avoidance space at the projection position of the platform fixing bracket (401) on the bolt drill (2); Or, it is used for the movable plate (403) to rotate and reset along the rotating shaft (405) when the driving device (402) operates, so as to form a horizontal working platform at the projection position of the movable working platform (4) on the bolt drill (2).

6. An efficient multi-stage anchor rod drilling device as claimed in claim 1, wherein, The drill walking base (201) further includes a translation expansion track (2011) and a secondary walking base (2012), the translation expansion track (2011) is arranged in the vertical direction of the drill ring beam (1), and the secondary walking base (2012) is movably connected along the translation expansion track (2011); The drill arm (202) is arranged on the secondary walking base (2012).

7. The highly efficient multi-stage anchor rod drilling-in device according to claim 3, characterized in that, The drill ring beam (1) is symmetrically arranged about the central axis of the roadway excavation equipment; And / or, the arc angle of the arc-shaped track surface (101) is 180° to 270°.

8. The efficient multi-stage anchor rod drilling device according to claim 2, characterized in that, A rack (102) is arranged on the arc-shaped track surface (101), and the drill walking base (201) is meshed and connected with the rack (102); And / or, a plurality of positioning holes are arranged on the annular bracket, and the drill walking base (201) is positioned and connected with the positioning holes.

9. The high-efficiency multi-stage anchor rod drilling-in device according to claim 2, wherein The drill head (203) includes a connection base (2031) and a drill string module (2032), the connection base (2031) is connected to the drill arm (202), and the drill string module (2032) is arranged on the connection base (2031).

10. A roadway excavation equipment, characterized in that, It includes an excavation cutter head (5), a support shield (6), a main shaft (7) and a multi-stage bolt drilling device; the support shield (6) is arranged behind the excavation cutter head (5), the support shield (6) is movably connected to the excavation cutter head (5) through the main shaft (7), the main shaft (7) is arranged at the bottom of the support shield (6), and the multi-stage bolt drilling device is arranged on the front and rear sides or inside of the support shield (6); the multi-stage bolt drilling device is a high-efficiency multi-stage bolt drilling device according to any one of claims 1-9.

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