Multi-arm driving and anchoring machine

Abstract

The dobby miner comprises a main rack, a gantry seat and a jumbolter, the upper end of the main rack is fixedly connected with rails in the advancing direction, and the rails are arranged on the two sides of the main rack and located on the two sides of a cutting part; the gantry seat comprises a plurality of lifting supporting columns, top beams and a connecting beam, the lifting supporting columns are movably connected to the upper portion of the track, the top beams are fixedly connected to the top ends of the lifting supporting columns, and the connecting beam is fixedly connected between the two top beams; the anchor rod drilling machines are connected to the front portion of the top beam through adjusting mechanisms, can be horizontally and movably arranged on the rails and are provided with first positions stored above the rails and second positions at least partially extending out of the front ends of the rails. According to the invention, the tunneling operation and the anchor rod operation are mutually independent without interference, the operation is simple and convenient, simultaneous operation of multiple arms can be realized, the operation efficiency is improved, the scraping problem is avoided, the impact of cutting vibration on the anchor rod drilling machine is reduced, and the stability of the anchor rod drilling machine is improved.

Description

Technical Field

[0001] This invention relates to the field of tunneling machine technology, and more particularly to a multi-arm tunneling and anchoring machine. Background Technology

[0002] The external anchor bolting machine for the cutting section is based on the original tunneling machine, with anchor bolting mechanisms installed on both sides of the cutting section, and temporary support added to the cutting section. Driven by hydraulic cylinders, the anchor bolting machine extends forward beyond the front end of the cutting head. It also rotates left and right via hydraulic drive to meet anchor bolting operations at different locations. This tunneling and anchoring machine has a compact structure, lightweight design, is easy to operate, and has low cost, making it suitable for small tunnel operations. However, due to structural constraints, the anchor bolting machines are fixed to the cutting section, and the relative positions of the left and right anchor bolting machines are fixed, resulting in a small anchoring width range. Extension, retraction, and rotation are also somewhat limited. Depending on the tunnel size, the cutting section needs to be adjusted to accommodate anchor bolting operations, requiring frequent switching between tunneling and anchor bolting operations, consuming excessive time and reducing tunneling efficiency. Because the anchor bolting machines are added to both sides of the cutting section, the width of the cutting section increases, making it prone to scraping when cutting the tunnel sides.

[0003] During the cutting process of a roadheader, when encountering hard rock strata, the cutting section inevitably experiences severe vibration. Since the anchor bolt mechanism has many parts and a relatively precise structure, the threads may loosen, precision may be lost, or even damage may occur during vibration. Therefore, this type of roadheader is not suitable for hard rock tunnel conditions. Summary of the Invention

[0004] The purpose of this invention is to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a multi-arm roadheader / anchor, which improves the operational efficiency of coal mine tunneling support and avoids the problem of roadway scraping.

[0005] This invention provides a multi-arm anchor boring machine, comprising: a main frame, a gantry base, and anchor drilling rigs. The upper end of the main frame is fixedly connected to a track along the travel direction, and the track is symmetrically arranged on both sides of the main frame and located on both sides of the cutting section. The gantry base includes lifting columns, a top beam, and a connecting beam. Several lifting columns are provided and movably connected to the top of the track. The lifting columns of the two tracks are symmetrically arranged. A top beam is provided directly above each track. The top beam is fixedly connected to the top of all the lifting columns of the same track. The lifting columns are connected to the middle and rear part of the top beam. The connecting beam is fixedly connected between the two top beams. Multiple anchor drilling rigs are provided and connected to the front part of the top beam through an adjustment mechanism. The anchor drilling rigs are horizontally movable on the track and have a first position retracted above the track and a second position that extends at least partially beyond the front end of the track.

[0006] In some embodiments, a sliding member is slidably connected to the track, and a lifting support is fixedly connected to the upper end of the sliding member.

[0007] In some embodiments, a slider is connected to a roller that moves at the bottom of a track.

[0008] In some embodiments, the track has an I-shaped structure, and the sliding member includes a top plate and two side plates. The top plate is fixedly connected to the upper end of the two side plates to form an n-shaped structure. The roller is rotatably connected to the inner side of the side plate and moves within the space formed by the track and the side plates.

[0009] In some embodiments, two sliders are slidably connected on each track, and each slider is connected to two lifting struts.

[0010] In some embodiments, the adjustment mechanism includes a lifting mechanism, a tilting mechanism, and a translation mechanism. The lifting mechanism is connected to the bottom of the top beam, the translation mechanism is connected to the front end of the lifting mechanism, the anchor drilling rig is connected to the translation mechanism through the tilting mechanism, and the anchor drilling rig is translated along the width direction of the main frame through the translation mechanism.

[0011] In some embodiments, walking tracks are connected to both sides of the bottom of the main frame.

[0012] In some embodiments, each track is connected to a track frame, the main frame is detachably and fixedly connected to the upper end of the two track frames, and the bottom of the main frame is connected to a chute along the length direction, the chute being located between the two tracks.

[0013] In some embodiments, a reinforcing plate is fixedly connected between the two top beams, and the reinforcing plate is connected to the front of the top beam.

[0014] In some embodiments, the lifting support is a hydraulic cylinder. Attached Figure Description

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings. in: Figure 1 This is a schematic diagram of the structure of a multi-arm tunneling and anchoring machine according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the gantry, the anchor drilling rig, and the track. Figure 3 for Figure 2 An enlarged schematic diagram of part A in the diagram; Figure 4 for Figure 1 A schematic diagram of the mainframe structure; Figure 5 for Figure 1 A schematic diagram of the track frame structure in the diagram; Figure label: 1. Cutting section; 2. Anchor drilling rig; 3. Adjustment mechanism; 4. Top beam; 5. Lifting support column; 6. Main frame; 7. Walking track; 8. Chute; 9. Sliding component; 901. Top plate; 902. Side plate; 10. Track; 11. Connecting beam; 12. Track frame; 13. Roller. Detailed Implementation

[0016] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0017] The multi-arm tunneling and anchoring machine of the present invention is described below with reference to the accompanying drawings.

[0018] like Figures 1-5 As shown, this embodiment of the invention proposes a multi-arm anchor boring machine, including: a main frame 6, a gantry base and an anchor drilling machine 2. The upper end of the main frame 6 is fixedly connected to a track 10 along the travel direction. The track 10 is symmetrically arranged on both sides of the main frame 6 and located on both sides of the cutting section 1. The gantry base includes lifting columns 5, a top beam 4 and a connecting beam 11. Several lifting columns 5 are provided and movably connected to the top of the track 10. The lifting columns 5 of two tracks 10 are symmetrically arranged. A top beam 4 is provided directly above each track 10. The top beam 4 is fixedly connected to the top of all the lifting columns 5 of the same track 10. The lifting columns 5 are connected to the middle and rear part of the top beam 4. The connecting beam 11 is fixedly connected between the two top beams 4. Multiple anchor drilling machines 2 are provided and connected to the front part of the top beam 4 through an adjustment mechanism 3. The anchor drilling machine 2 is horizontally movable on the track 10 and has a first position that is housed above the track 10 and a second position that extends at least partially beyond the front end of the track 10.

[0019] This invention, through the installation of a movable gantry base and the even distribution of the anchor drilling rig 2 on the lifting support 5, allows for independent and interference-free tunneling and anchor drilling operations. This simplifies operation, enables simultaneous multi-arm operation without mutual interference, improves work efficiency, eliminates scraping issues, reduces the impact of cutting vibrations on the anchor drilling rig 2, and enhances its stability. The anchor drilling rig 2's forward and backward translation via the track 10 reduces the time required for hole finding and alignment. Combined with existing integrated drilling and anchoring construction techniques, this significantly improves the reliability and operability of the anchor drilling rig 2.

[0020] The gantry tower can also be used for temporary support of the roadway roof. The excavation section (i.e., cutting section 1) of the roadheader is designed separately from the gantry tower, which expands the support range for the roadway roof, covering the entire machine body. This achieves zero open roof support for temporary support in coal mine roadways, ensuring the safety of the machine and personnel, and enabling rapid completion of support, thus improving support efficiency. By designing the gantry tower to be height-adjustable, it can be applied to roadways of various heights.

[0021] In some embodiments, such as Figures 1-2 As shown, a sliding member 9 is slidably connected on the track 10, and the lifting support column 5 is fixedly connected to the upper end of the sliding member 9.

[0022] Furthermore, limiting devices are provided at both ends of the track 10 to limit the movement range of the sliding member 9.

[0023] In some embodiments, such as Figure 3 As shown, the slider 9 is connected to the roller 13, which moves at the bottom of the track 10. This reduces the frictional resistance of the slider 9, making the movement smoother.

[0024] Furthermore, each slider 9 is connected to multiple rollers 13 which are evenly distributed.

[0025] In some embodiments, such as Figure 3 As shown, the track 10 has an I-shaped structure, and the sliding member 9 includes a top plate 901 and two side plates 902. The top plate 901 is fixedly connected to the upper end of the two side plates 902 to form an n-shaped structure. The roller 13 is rotatably connected to the inner side of the side plate 902 and moves within the space formed by the track 10 and the side plate 902.

[0026] In some embodiments, such as Figure 2 As shown, each track 10 has two sliding members 9 connected to it, and each sliding member 9 is connected to two lifting pillars 5.

[0027] In some embodiments, the adjustment mechanism 3 includes a lifting mechanism, a tilting mechanism, and a translation mechanism. The lifting mechanism is connected to the bottom of the top beam 4, and the translation mechanism is connected to the front end of the lifting mechanism. The anchor drilling rig 2 is connected to the translation mechanism via the tilting mechanism, and the anchor drilling rig 2 is translated along the width direction of the main frame 6 via the translation mechanism. This allows for precise adjustment of the position of the anchor drilling rig 2.

[0028] In some embodiments, such as Figure 1 As shown, the bottom sides of the main frame 6 are connected to walking tracks 7. This can reduce the ground pressure, minimize damage to the ground, and improve running stability and operational stability, preventing slipping or sinking on soft or muddy ground.

[0029] In some embodiments, such as Figure 5As shown, each walking track 7 is connected to a track frame 12. The main frame 6 is detachably and fixedly connected to the upper end of the two track frames 12. The bottom of the main frame 6 is connected to a chute 8 along its length, and the chute 8 is located between the two walking tracks 7. By placing the chute 8 between the two walking tracks 7, the overall height of the roadheader can be reduced, making the roadheader move more smoothly. The installation difficulty of the main frame 6 and the chute 8 is also greatly reduced. Moreover, the lifting adjustment range of the lifting support 5 and the anchor drilling rig 2 is expanded.

[0030] Understandably, in the prior art, the chute 8 is usually embedded in the main frame 6 and passes through the main frame 6. Since the bottom of the chute 8 is an inclined surface, the main frame 6 is thicker, which in turn makes the overall height of the tunneling and anchoring machine higher and its operation less stable.

[0031] Furthermore, the main frame 6 and the track frame 12 are fixedly connected by bolts.

[0032] In some embodiments, a reinforcing plate is fixedly connected between the two top beams 4, and the reinforcing plate is connected to the front of the top beam 4. This can improve the stability of the overall structure of the gantry.

[0033] In some embodiments, the lifting support 5 is a hydraulic cylinder.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A multi-arm roadheader, characterized in that, include: A main frame, the upper end of which is fixedly connected to a track along the direction of travel, the track being symmetrically arranged on both sides of the main frame and located on both sides of the cutting section; The gantry base includes lifting columns, a top beam, and a connecting beam. Several lifting columns are provided and movably connected to the top of the track. The lifting columns of the two tracks are symmetrically arranged. A top beam is provided directly above each track. The top beam is fixedly connected to the top of all the lifting columns of the same track. The lifting columns are connected to the middle and rear part of the top beam. The connecting beam is fixedly connected between the two top beams. An anchor drilling rig, wherein multiple anchor drilling rigs are provided and connected to the front of the top beam via an adjustment mechanism, the anchor drilling rigs are horizontally movable on the track, and have a first position retracted above the track, and a second position extending at least partially beyond the front end of the track.

2. The multi-arm roadheader according to claim 1, characterized in that, A sliding member is slidably connected to the track, and the lifting support is fixedly connected to the upper end of the sliding member.

3. The multi-arm roadheader according to claim 2, characterized in that, The slider is connected to a roller, which moves at the bottom of the track.

4. The multi-arm roadheader according to claim 3, characterized in that, The track has an I-shaped structure, and the sliding member includes a top plate and two side plates. The top plate is fixedly connected to the upper ends of the two side plates to form an n-shaped structure. The roller is rotatably connected to the inner side of the side plate and moves within the space formed by the track and the side plates.

5. The multi-arm roadheader according to claim 2, characterized in that, Two sliding members are slidably connected to each of the tracks, and each sliding member is connected to two of the lifting pillars.

6. The multi-arm roadheader according to claim 1, characterized in that, The adjustment mechanism includes a lifting mechanism, a tilting mechanism, and a translation mechanism. The lifting mechanism is connected to the bottom of the top beam, and the translation mechanism is connected to the front end of the lifting mechanism. The anchor drilling rig is connected to the translation mechanism through the tilting mechanism, and the anchor drilling rig is translated along the width direction of the main frame through the translation mechanism.

7. The multi-arm roadheader according to claim 1, characterized in that, The bottom of the main frame is connected to two walking tracks on both sides.

8. The multi-arm roadheader according to claim 7, characterized in that, Each of the walking tracks is connected to a track frame, and the main frame is detachably and fixedly connected to the upper end of the two track frames. The bottom of the main frame is connected to a chute along the length direction, and the chute is located between the two walking tracks.

9. The multi-arm roadheader according to claim 1, characterized in that, A reinforcing plate is fixedly connected between the two top beams, and the reinforcing plate is connected to the front of the top beam.

10. The multi-arm roadheader according to claim 1, characterized in that, The lifting support is a hydraulic cylinder.

Images