Multi-shaft drilling device applied to forepoling

Abstract

The utility model discloses a multi-shaft drilling device applied to forepoling. The multi-shaft drilling device comprises a supporting frame, a telescopic arm, a track tower, an overturning assembly, a rotating power system and a traction feeding system. The height of the supporting frame is adjustable, the two ends of a frame body of the supporting frame are each provided with a telescopic arm through an overturning assembly, the track tower is correspondingly arranged at the top ends of the front telescopic arm and the rear telescopic arm and stretches across the two telescopic arms, the rotary power system is slidably installed on the top of the track tower through a sliding shoe, and the traction feeding system is correspondingly arranged on the track tower. The sliding shoes are used for driving the sliding shoes to slide along the rail tower. The overturning assembly can adjust the included angle between the connecting line between the rotating output shafts and the horizontal direction by adjusting the included angle between the telescopic arm and the rail tower. The utility model has the advantages of simple structure and ingenious design, optimizes a rotary power system into a multi-shaft power design, and is additionally provided with the turnover assembly, thereby achieving the purpose of forming multiple holes at one time, and effectively improving the construction efficiency of forepoling.

Description

Technical Field

[0001] The utility model relates to the technical field of advanced support construction, and particularly relates to a multi-axis drilling device applied to advanced support. Background Technique

[0002] During the construction of tunnels in soft strata, due to the poor self-stability of the surrounding rock, advanced support or pre-reinforcement treatment is required. Among them, pipe shed, grouting, and horizontal jet grouting are common advanced support methods in subway underground excavation construction, all of which involve drilling. At present, several construction methods can only achieve single-hole formation at a time, with low construction efficiency, seriously delaying the construction period. If the number of drilling equipment is increased to improve the construction efficiency, there will be problems such as limited face space, insufficient on-site layout space, and high costs. Therefore, how to optimize and improve the existing construction methods and improve the construction efficiency by increasing the number of holes formed simultaneously at one time has become an urgent technical problem to be solved. Content of the Utility Model

[0003] The purpose of the utility model is to provide a multi-axis drilling device applied to advanced support to solve the technical problems described in the background technique.

[0004] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0005] A multi-axis drilling device applied to advanced support includes a support frame, a telescopic arm, a track tower, a flipping assembly, a rotary power system, and a traction and feeding system;

[0006] The height of the support frame is adjustable. One set of telescopic arms is respectively arranged at both ends of the frame body through the flipping assembly. The track tower is correspondingly arranged at the tops of the front and rear sets of telescopic arms and spans the two sets of telescopic arms. The rotary power system is slidably installed on the top of the track tower through a sliding shoe. The sliding shoe can slide along the length direction of the track tower. A plurality of sets of sliding grippers for clamping drill pipes or pipe shed steel pipes are arranged at the front end of the sliding shoe, and the sliding grippers can slide along the length direction of the track tower. The traction and feeding system is correspondingly arranged on the track tower and is used to drive the sliding shoe to slide along the track tower;

[0007] The rotary power system includes a base fixedly installed on the top of the sliding shoe. At least two sets of rotary output shafts for connecting drill pipes and driving the drill pipes to rotate are rotatably installed in the middle of the base. A rotary drive motor is correspondingly installed at the rear end of the base, and the rotary drive motor drives the corresponding rotary output shaft to rotate through a gear set integrated inside the base;

[0008] The flipping assembly can adjust the included angle between the telescopic arm and the track tower to adjust the included angle between the connection line between the rotary output shafts and the horizontal direction.

[0009] Preferably, the support frame includes a base, a support seat, a scissor lift and a lifting arm. The base is correspondingly arranged below the support seat, and the base and the support seat are connected by two groups of scissor lifts. The two groups of scissor lifts are respectively arranged at the two ends of the base. The lifting arm is correspondingly arranged outside the scissor lift, its bottom end is fixed on the base, and its top end extends upward through the support seat. The lifting arm is used to drive the scissor lift to move up and down, and the lifting arm makes a telescopic movement in a direction perpendicular to the base. The edges at the front and rear ends of the support seat both exceed the edges at the front and rear ends of the base, and the telescopic arm is correspondingly arranged at the end of the support seat that exceeds the base.

[0010] Preferably, the flipping assembly includes a flipping shaft and a flipping oil cylinder. The flipping shaft is correspondingly arranged on one side of the telescopic arm, and the telescopic arm is hinged to the support seat through the flipping shaft. The flipping oil cylinder is obliquely arranged, its top end is hinged to the support seat, and its bottom end is hinged to the bottom of the telescopic arm.

[0011] Preferably, the traction feeding system includes a traction motor and a traction chain. The traction motor is fixedly installed at the rear end of the track tower, and a driving roller is installed at its output shaft. One end of the traction chain is fixed to the rear end of the sliding shoe, and the other end is sequentially wound around the driving roller at the rear end of the track tower and the reversing wheel at the front end of the track tower and then fixed to the front end of the sliding shoe, and the traction chain is meshed with the driving roller.

[0012] Preferably, synchronous connectors are also arranged between the pipe shed steel pipes in front of the track tower. The synchronous connectors include collars, connecting plates and limiting blocks. The collars are correspondingly sleeved on the pipe shed steel pipes, and adjacent collars are fixedly connected by connecting plates. The limiting blocks are correspondingly arranged on the pipe shed steel pipes on both sides of the front and rear of each collar.

[0013] Preferably, the telescopic arm includes an outer support arm, an inner sliding arm, a telescopic oil cylinder and a connecting support. One side of the top of the outer support arm is hinged to the support seat through a flipping shaft. The inner sliding arm slides through the outer support arm and can slide along the outer support arm. The telescopic oil cylinder is arranged inside the inner sliding arm, its bottom end is connected to the bottom end of the outer support arm through a connecting pin, and its top end is connected to the top end of the inner sliding arm through a connecting pin. The connecting support is hinged to the top end of the inner sliding arm and is fixed on the track tower.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The structure of the utility model is simple and ingeniously designed. The rotary power system is optimized into a multi-axis power design, which can drive at least two drill pipes simultaneously. Meanwhile, a flipping assembly is further added to realize the coordinated adjustment of the hole-forming angles of each drill pipe, so that it can achieve the purpose of forming multiple holes at one time on the premise of meeting the hole-forming angle, effectively improving the construction efficiency of the advanced support.

[0016] 2. By adding synchronous connectors between the pipe shed steel pipes during synchronous drilling, the utility model can not only ensure the synchronous drilling of each pipe shed steel pipe, control the drilling accuracy, but also disturb the soil between the drill pipes during the drilling process, effectively improving the grouting effect of the soil between the drill pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Through the detailed description in combination with the following drawings, the above and / or other aspects and advantages of the utility model will become clearer and easier to understand. These drawings are only schematic and do not limit the utility model, where:

[0018] Figure 1 is a schematic structural diagram of the utility model in the state where the scissor lift arm is retracted and the flipping assembly is not flipped;

[0019] Figure 2 is a schematic structural diagram of the utility model in the state where the scissor lift arm is extended and the flipping assembly is flipped to one side;

[0020] Figure 3 is an enlarged schematic structural diagram of the traction feed system involved in the utility model;

[0021] Figure 4 is a schematic structural diagram of the flipping assembly involved in the utility model;

[0022] Figure 5 is a schematic structural diagram of the lift arm involved in the utility model;

[0023] Figure 6 is a schematic structural diagram of the telescopic arm involved in the utility model;

[0024] Figure 7 is a schematic structural diagram of the synchronous connector involved in the utility model.

[0025] Reference numerals: 1, base; 2, support base; 3, chute; 4, scissor lift; 401, scissor strut; 402, connecting cross brace; 403, pin shaft; 5, lifting arm; 501, inner support tube; 502, outer sliding tube; 503, lifting oil cylinder; 504, connecting shaft; 505, sliding groove; 506, driving block; 507, hinge plate; 508, chain; 509, guide pulley; 6, telescopic arm; 601, outer support arm; 602, inner sliding arm; 603, telescopic oil cylinder; 604, connecting pin; 605, connecting bracket; 7, flipping assembly; 701, flipping shaft; 702, flipping oil cylinder; 8, track tower; 9, sliding gripper; 10, sliding shoe; 11, rotary power system; 1101, base; 1102, rotary drive motor; 1103, rotary output shaft; 12, traction feed system; 1201, traction motor; 1202, traction chain; 13, drill pipe; 14, pipe roof steel pipe; 15, synchronous connecting piece; 1501, ferrule; 1502, connecting plate; 1503, limit stop block; 16, walking type walking system. Detailed implementation manners

[0026] In the following, an embodiment of a multi-axis drilling device applied to advanced support of the present utility model will be described with reference to the accompanying drawings. The embodiments described herein are specific specific implementation manners of the present utility model for explaining the concept of the present utility model, and are all explanatory and exemplary, and should not be construed as a limitation to the implementation manners of the present utility model and the scope of the present utility model. Except for the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the content disclosed in the claims and the specification of the present application. These technical solutions include technical solutions that make any obvious substitutions and modifications to the embodiments described herein.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "top", "bottom", "upper", "lower", "inner", "outer", "horizontal", "vertical", "upright", "oblique", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] The drawings in this specification are schematic diagrams to assist in explaining the concept of the present utility model, and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structures of the various components of the embodiments of the present utility model, the drawings are not drawn in the same proportion. The same reference numerals are used to represent the same parts.

[0029] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present utility model and are not intended to limit the scope of the present utility model. The following is in conjunction with Figures 1-7 (In some of the drawings, in order to better show the target component, other components are hidden), a preferred embodiment of the present utility model will be further described in detail:

[0030] As Figures 1-2 shown, a multi-axis drilling device preferably applied to advanced support of the present utility model includes a support frame, a telescopic arm 6, a track tower 8, a flipping assembly 7, a rotary power system 11, and a traction feed system 12;

[0031] The height of the support frame is adjustable. A set of telescopic arms 6 are respectively arranged at both ends of the frame body through the flipping assembly 7. The track tower 8 is correspondingly arranged at the tops of the front and rear groups of telescopic arms 6 and straddles the two groups of telescopic arms 6. The rotary power system 11 is slidably installed on the top of the track tower 8 through a sliding shoe 10. The sliding shoe 10 can slide along the length direction of the track tower 8. A plurality of groups of sliding grippers 9 for clamping a drill pipe 13 or a pipe shed steel pipe 14 are arranged at the front end of the sliding shoe 10, and the sliding grippers 9 can slide along the length direction of the track tower 8. The traction feed system 12 is correspondingly arranged on the track tower 8 and is used to drive the sliding shoe 10 to slide along the track tower 8;

[0032] The rotary power system 11 includes a base 1101 fixedly installed on the top of the sliding shoe 10. At least two groups of rotary output shafts 1103 for connecting the drill pipe 13 and driving the drill pipe 13 to rotate are rotatably installed in the middle of the base 1101. A rotary drive motor 1102 is correspondingly installed at the rear end of the base 1101, and the rotary drive motor 1102 drives the corresponding rotary output shaft 1103 to rotate through a gear set integrated inside the base 1101;

[0033] The flipping assembly 7 can adjust the angle between the telescopic arm 6 and the track tower 8 to adjust the angle between the connection lines of the rotary output shafts 1103 and the horizontal direction;

[0034] The support frame includes a base 1, a support seat 2, a scissor lift 4, and a lifting arm 5. The base 1 is correspondingly arranged below the support seat 2, and the base 1 and the support seat 2 are connected by two groups of scissor lifts 4. The two groups of scissor lifts 4 are respectively arranged at the two end positions on both sides of the base 1. The lifting arm 5 is correspondingly arranged outside the scissor lift 4. Its bottom end is fixed on the base 1, and its top end extends upward through the support seat 2. The lifting arm 5 is used to drive the scissor lift 4 to perform lifting motion, and the lifting arm 5 performs telescopic motion along the direction perpendicular to the base 1. The edges at the front and rear ends of the support seat 2 both extend beyond the edges at the front and rear ends of the base 1, and the telescopic arm 6 is correspondingly arranged at the end position where the support seat 2 extends beyond the base 1. The lifting height of the vertically lifting lifting arm 5 is the changing height of the track tower 8. Therefore, on-site construction personnel can determine the elevation change of the track tower 8 through the lifting height of the lifting arm 5, making the on-site height adjustment more intuitive and convenient for construction personnel to operate;

[0035] The scissor lift 4 is a double-link scissor lift mechanism, including scissor lift arms composed of several layers of scissor struts 401 hinged together. Two scissor struts 401 within the same scissor lift arm and on the same layer are hinged together at the middle of their rod bodies through a pin shaft 403 to form an X-shaped scissor. The scissor struts 401 of the X-shaped scissors on the same scissor lift arm and on adjacent layers are hinged together at the staggered end positions of the rod bodies through a pin shaft 403;

[0036] The top ends of the scissor struts 401 on the outer side (the side close to the lifting arm 5) of the top-layer X-shaped scissor are hinged on the support seat 2 through a pin shaft 403. The top ends of the scissor struts 401 on the inner side (the side far from the lifting arm 5) of the top-layer X-shaped scissor are hinged in a chute 3 provided on the support seat 2 and can slide along the chute 3;

[0037] The bottom ends of the scissor struts 401 on the outer side (the side close to the lifting arm 5) of the bottom-layer X-shaped scissor are hinged on the base 1 through a pin shaft 403. The bottom ends of the scissor struts 401 on the inner side (the side far from the lifting arm 5) of the bottom-layer X-shaped scissor are hinged in a chute 3 provided on the base 1 and can slide along the chute 3;

[0038] The two groups of scissor lift arms are correspondingly hinged on the same connecting cross brace 402, and the connecting cross brace 402 is hinged to the lifting arm 5;

[0039] As Figure 5As shown, the lifting arm 5 includes an inner support tube 501, an outer sliding tube 502, a lifting cylinder 503 and a driving block 506. The bottom end of the inner support tube 501 is fixed on the base 1, and the outer sliding tube 502 is sleeved on the inner support tube 501 and can slide along the inner support tube 501. The lifting cylinder 503 is inserted into the inner support tube 501, and its bottom end is connected to the bottom end of the inner support tube 501 through a connecting shaft 504, and its top end is connected to the top end of the outer sliding tube 502 through a connecting shaft 504. The driving block 506 is arranged on the outer sliding tube 502, and the driving block 506 is hingedly connected to the connecting cross brace 402 through a hinge plate 507;

[0040] The driving block 506 can be directly fixed on the outer sliding tube 502. However, the fixed setting method has high requirements on the bearing capacity of the lifting cylinder 503. In order to better adapt to the jacking operation of large loads in the case of ultra-long drill pipes, it is advisable to consider the principle of labor-saving of movable pulleys and optimize the installation method of the driving block 506. At this time, a sliding groove 505 is opened on the outer sliding tube 502, and the driving block 506 is slidably embedded in the sliding groove 505 and can slide along the sliding groove 505. A chain 508 is fixed to the top of the driving block 506, and a guide pulley 509 is rotatably installed on the top of the outer sliding tube 502. The chain 508 bypasses the guide pulley 509 from bottom to top and extends downward along the vertical surface of the other side of the outer sliding tube 502 to the bottom of the inner support tube 501 and is fixedly connected to the inner support tube 501 or the base 1. Of course, the chain 508 can also be replaced by a wire rope;

[0041] Considering the on-site construction conditions, it is usually set that the scissor-type lifting frame 4 is set with two layers of X-shaped scissors to meet the construction requirements. Of course, when constructing a cavern with a larger diameter, the number of layers of the X-shaped scissors can be adjusted accordingly, wherein two groups of lifting arms 5 are preferably set, and the two groups of lifting arms 5 are arranged corresponding to the positions of the two groups of scissor-type lifting arms, respectively. The driving blocks 506 of the two groups of lifting arms 5 are connected to the same connecting cross brace 402 through hinge plates 507, that is, one end of the hinge plate 507 is hinged to the driving block 506 through a hinge shaft, and the other end is hinged to the connecting cross brace 402 through a hinge shaft. The connecting ear plates need to be welded in advance on the connecting cross brace 402 and the driving block 506. The connecting cross brace 402 is preferably set at the top position of the scissor support rod 401 of the bottom layer X-shaped scissors, which is located on the outside. The connecting cross brace 402 connects the two groups of scissor-type lifting arms of corresponding heights into one, so as to ensure that the two groups of lifting arms 5 synchronously drive the two groups of scissor-type lifting arms to move synchronously;

[0042] The base 1 and the support seat 2 are both rectangular frame structures connected by steel rods, which can better reduce the deadweight of the structure while playing a stable supporting role, and avoid structural components such as the lifting arm 5 and the telescopic arm 6 set on the frame;

[0043] like Figure 6As shown, the telescopic arm 6 includes an outer support arm 601, an inner sliding arm 602, a telescopic oil cylinder 603, and a connecting bracket 605. One side of the top of the outer support arm 601 is hinged to the support seat 2 through a turning shaft 701. To make better use of space, the outer support arm 601 is preferably sleeved on the frame of the support seat 2, and the connection position between the two is preferably set at the top of the outer support arm 601. The inner sliding arm 602 is slidably inserted into the outer support arm 601 and can slide along the outer support arm 601. The telescopic oil cylinder 603 is inserted into the inner sliding arm 602. Its bottom end is connected to the bottom end of the outer support arm 601 through a connecting pin 604, and its top end is connected to the top end of the inner sliding arm 602 through a connecting pin 604. The connecting bracket 605 is hinged to the top end of the inner sliding arm 602 and is fixed on the track tower 8. The setting of the telescopic arm 6 can, on the one hand, cooperate with the lifting arm 5 to increase the height adjustment range of the support frame, and on the other hand, can effectively adjust the upward angle of the drill rig to meet the on-site construction requirements. In addition, the setting of the telescopic arm 6 is also to better cooperate with the flipping assembly 7, so that the flipping assembly 7 can effectively adjust the flipping angle of the track tower 8, and then realize the coordinated adjustment of the hole-forming angles of each drill pipe 13 to meet the drilling requirements of each pipe shed steel pipe 14 at different height positions on the same heading face;

[0044] As Figure 3 shown, the traction and feeding system 12 includes a traction motor 1201 and a traction chain 1202. The traction motor 1201 is fixedly installed at the rear end of the track tower 8, and a driving roller is installed at its output shaft. One end of the traction chain 1202 is fixed to the rear end of the sliding shoe 10, and the other end is sequentially wound around the driving roller at the rear end of the track tower 8 and the reversing wheel at the front end of the track tower 8 and then fixedly connected to the front end of the sliding shoe 10, and the traction chain 1202 is meshed with the driving roller. The rotary power system 11 cooperates with the traction and feeding system 12 to realize the drilling construction of the pipe shed steel pipe 14. On the one hand, the traction and feeding system 12 provides power for the drilling of the rotary power system 11 to enter the soil through the sliding shoe 10, so that the pipe shed steel pipe 14 can better enter the soil. On the other hand, after the rotary power system 11 moves forward to the front end of the track tower 8, the sliding shoe 10 and the rotary power system 11 are reset through the reverse rotation of the traction motor 1201;

[0045] The angles between the connections of adjacent drill holes at different heights on the same heading face and the horizontal line are different. Therefore, when the multiple drill pipes 13 provided at the rotary power system 11 are drilling at different heights, the adjustment of the flipping angle is required. However, setting each drill pipe 13 to be adjustable relative to the base 1101 will make the structure very complex. Therefore, the present utility model ingeniously realizes the flipping adjustment of the track tower 8 through the flipping assembly 7 to drive each drill pipe 13 to achieve flipping adjustment. Of course, this adjustment method also introduces limitations in the adjustment angle, that is, the number of drill pipes 13 should not be too many. Generally, two drill pipes 13 can meet various angle requirements. When there are more than two drill pipes 13, the drilling positions need to be reasonably arranged. Try to take the number of drill pipes 13 as a group, divide the layout positions of the pipe shed steel pipes 14 into groups, and the hole position relationship within each group needs to match the relative position relationship of each rotary output shaft 1103 on the base 1101. For example Figure 4 As shown, the flipping assembly 7 includes a flipping shaft 701 and a flipping oil cylinder 702. The flipping shaft 701 is correspondingly arranged on one side of the telescopic arm 6, and the telescopic arm 6 is hinged to the support seat 2 through the flipping shaft 701. The flipping oil cylinder 702 is obliquely arranged, its top end is hinged to the support seat 2, and its bottom end is hinged to the bottom of the telescopic arm 6;

[0046] Generally, the length of the pipe shed steel pipe 14 to be driven is relatively long. In order to reduce the number of pipe joint assemblies, the length of a single pipe joint is relatively long. Therefore, the length of the track tower 8 also needs to be extended accordingly. At this time, in order to ensure that the track tower 8 has sufficient strength and stiffness, the track tower 8 is designed as a truss structure. The track tower 8 of the truss structure includes an upper chord beam frame and a lower chord beam frame. The upper chord beam frame and the lower chord beam frame are fixedly connected by vertical web members and diagonal web members, and both sides of the upper chord beam frame extend a certain distance outside the vertical web members and diagonal web members to form cantilever flanges for installing the sliding gripper 9 and the sliding shoe 10. The setting of the cantilever flanges can prevent the vertical web members and diagonal web members from interfering with the movement of the sliding gripper 9 and the sliding shoe 10 and ensure the smooth sliding of the sliding gripper 9 and the sliding shoe 10. On this basis, in order to prevent the drill pipes 13 or the pipe shed steel pipes 14 within the range of the track tower 8 from sagging due to gravity during long-distance pipe shed construction, the present utility model specially sets a sliding gripper 9 at the top of the track tower 8. The top of the sliding gripper 9 is provided with corresponding numbers of buckle and slot structures to accommodate and clamp the drill pipes 13 or the pipe shed steel pipes 14, and overcome the sagging problem by supporting the drill pipes 13 or the pipe shed steel pipes 14 every certain distance. According to construction experience, the spacing of the sliding grippers 9 below the drill pipes 13 or the pipe shed steel pipes 14 is generally 6 - 10 m. Of course, the setting of the sliding gripper 9 can also ensure the synchronization of each drill pipe 13 or the pipe shed steel pipe 14 during synchronous drilling and control the hole forming accuracy. Similarly, the pipe shed steel pipes 14 located in front of the track tower 8 and outside the range of the track tower 8 also need to ensure synchronous drilling. For this reason, as Figure 7As shown in the figure, a synchronous connector 15 is further arranged between each pipe-roof steel pipe 14 in front of the track tower 8. The synchronous connector 15 includes a ferrule 1501, a connecting plate 1502 and a limit stop 1503. The ferrule 1501 is correspondingly sleeved on each pipe-roof steel pipe 14. The adjacent ferrules 1501 are fixedly connected by the connecting plate 1502. The limit stops 1503 are correspondingly arranged on the pipe-roof steel pipes 14 on the front and rear sides of each ferrule 1501. The size of the ferrule 1501 is slightly larger than the outer diameter of the pipe-roof steel pipe 14. On the one hand, it is convenient for the sleeving and installation of the ferrule 1501. On the other hand, it can also allow a certain deviation in the soil-entering length between the pipe-roof steel pipes 14, avoiding the problem of stress accumulation at the corresponding positions. At the same time, the setting of the limit stops 1503 effectively prevents the problem of excessive non-synchronization of the pipe-roof steel pipes 14 during synchronous drilling. Of course, the distance between the two limit stops 1503 on the front and rear sides of the ferrule 1501 also needs to be greater than the length of the ferrule 1501, allowing the ferrule 1501 to slide along the pipe-roof steel pipe 14 to a certain extent;

[0047] With the progress of the chamber excavation, the longitudinal positions of the track tower 8 and the support frame need to be advanced synchronously. Moreover, when carrying out support operations on different parts under the same excavation section, the transverse setting positions of the track tower 8 and the support frame also need to be adjusted. In order to more conveniently realize the position adjustment of the two, a walking beam type walking system 16 is preferably installed at the bottom of the base 1. The walking beam type walking system 16 is a mature existing technology, mainly including an upper chassis (using the base 1 as its upper chassis in this application), a slewing disc, a walking beam system and other components. Specifically, reference can be made to the folding walking beam type walking base disclosed in CN2832914Y or the walking beam chassis with dual power drive disclosed in CN2925778Y, which will not be elaborated here.

[0048] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-axis drilling device applied to advanced support, characterized in that: It includes a support frame, a telescopic arm (6), an orbital tower (8), a flipping assembly (7), a rotary power system (11), and a traction feed system (12). The height of the support frame is adjustable. One set of telescopic arms (6) is respectively arranged at both ends of the frame body of the support frame through the flipping assembly (7). The orbital tower (8) is correspondingly arranged at the tops of the front and rear groups of telescopic arms (6) and spans across the two groups of telescopic arms (6). The rotary power system (11) is slidably installed on the top of the orbital tower (8) through a sliding shoe (10). The sliding shoe (10) can slide along the length direction of the orbital tower (8). Several groups of sliding grippers (9) for clamping drill pipes (13) or pipe shed steel pipes (14) are arranged at the front end of the sliding shoe (10), and the sliding grippers (9) can slide along the length direction of the orbital tower (8). The traction feed system (12) is correspondingly arranged on the orbital tower (8) and is used to drive the sliding shoe (10) to slide along the orbital tower (8). The rotary power system (11) includes a base (1101) fixedly installed on the top of the sliding shoe (10). At least two rotary output shafts (1103) for connecting the drill pipes (13) and driving the drill pipes (13) to rotate are rotatably installed in the middle of the base (1101). A rotary drive motor (1102) is correspondingly installed at the rear end of the base (1101), and the rotary drive motor (1102) drives the corresponding rotary output shaft (1103) to rotate through a gear set integrated inside the base (1101). The flipping assembly (7) can adjust the angle between the telescopic arm (6) and the orbital tower (8) to adjust the angle between the connection line between the rotary output shafts (1103) and the horizontal direction.

2. The multi-axis drilling device for advanced support according to claim 1, characterized in that: The support frame includes a base (1), a support seat (2), a scissor lift (4), and a lifting arm (5). The base (1) is correspondingly arranged below the support seat (2), and the base (1) and the support seat (2) are connected by two groups of scissor lifts (4). The two groups of scissor lifts (4) are respectively arranged at the two side end positions of the base (1). The lifting arm (5) is correspondingly arranged outside the scissor lift (4). Its bottom end is fixed on the base (1), and its top end extends upward through the support seat (2). The lifting arm (5) is used to drive the scissor lift (4) to perform lifting motion, and the lifting arm (5) performs telescopic motion along the direction perpendicular to the base (1). The edges at the front and rear ends of the support seat (2) both exceed the edges at the front and rear ends of the base (1), and the telescopic arm (6) is correspondingly arranged at the end position where the support seat (2) exceeds the base (1).

3. The multi-axis drilling device for advanced support according to claim 2, characterized in that: The flipping assembly (7) includes a flipping shaft (701) and a flipping oil cylinder (702). The flipping shaft (701) is correspondingly arranged on one side of the telescopic arm (6), and the telescopic arm (6) is hinged to the support seat (2) through the flipping shaft (701). The flipping oil cylinder (702) is inclined. Its top end is hinged to the support seat (2), and its bottom end is hinged to the bottom of the telescopic arm (6).

4. The multi-axis drilling device for advanced support according to claim 2, wherein: The traction feed system (12) includes a traction motor (1201) and a traction chain (1202). The traction motor (1201) is fixedly installed at the rear end of the track tower (8), and a driving roller is installed at the output shaft thereof. One end of the traction chain (1202) is fixed to the rear end of the sliding shoe (10), and the other end sequentially bypasses the driving roller at the rear end of the track tower (8) and the reversing wheel at the front end of the track tower (8) and then is fixedly connected to the front end of the sliding shoe (10), and the traction chain (1202) is meshed with the driving roller.

5. The multi-axis drilling device for advanced support according to claim 1, characterized in that: Synchronous connectors (15) are further provided between the pipe shed steel pipes (14) located in front of the track tower (8). The synchronous connectors (15) include a ferrule (1501), a connecting plate (1502) and a limit stop (1503). The ferrule (1501) is correspondingly sleeved on each of the pipe shed steel pipes (14), and adjacent ferrules (1501) are fixedly connected by the connecting plate (1502). The limit stop (1503) is correspondingly arranged on the pipe shed steel pipes (14) on the front and rear sides of each ferrule (1501).

6. The multi-axis drilling device applied to advanced support according to claim 3, characterized in that: The telescopic arm (6) includes an outer support arm (601), an inner sliding arm (602), a telescopic oil cylinder (603) and a connecting bracket (605). One side of the top of the outer support arm (601) is hinged to the support seat (2) through a turning shaft (701). The inner sliding arm (602) slidably penetrates through the outer support arm (601) and can slide along the outer support arm (601). The telescopic oil cylinder (603) penetrates through the inner sliding arm (602), and its bottom end is connected to the bottom end of the outer support arm (601) through a connecting pin (604), and its top end is connected to the top end of the inner sliding arm (602) through a connecting pin (604). The connecting bracket (605) is hinged to the top end of the inner sliding arm (602), and the connecting bracket (605) is fixed on the track tower (8).

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