Anchor rod advanced dual-mode drilling machine based on inclined shaft TBM tunneling

Abstract

The invention relates to the technical field of tunnel and underground engineering construction equipment, in particular to an anchor rod advanced dual-mode drilling machine based on inclined shaft TBM tunneling, which comprises a drilling machine vehicle body, an advanced propelling structure, a side anchor rod structure and a driving structure, the side anchor rod structure is arranged on the left side and / or the right side of the drilling machine vehicle body, and the driving structure drives the advanced propelling structure and the side anchor rod structure to drill holes; advanced drilling at different angles is achieved by arranging the advanced propelling structure capable of obliquely swinging above the drilling machine vehicle body. Synchronous drilling and supporting of surrounding rocks on the two sides are achieved through the side anchor rod structures which are arranged on the two sides of the drilling machine vehicle body and can swing, cooperative movement of the advanced propelling structure and the side anchor rod structures is achieved through the driving structure, and therefore the drilling angle and position are flexibly adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel and underground engineering construction equipment, and particularly relates to an advanced double-mode anchor drill based on inclined-shaft TBM tunneling. Background Art

[0002] Traditional anchor drill rigs are all equipment that travels on the ground with crawlers or tires; although the external dimensions of such anchor drill rigs traveling on the ground have been made very compact, they still occupy a certain amount of ground space. Therefore, when such an anchor drill rig needs to enter the working face for anchor support construction operations, it is necessary to first withdraw other roadway tunneling construction equipment (tunnel boring machines, drill loaders, rock drilling jumbo or wheel loaders, etc.), and then the anchor drill rig enters to drill anchor and cable holes and perform support operations. During this process, there is a long period of "empty roof". If the geological conditions are poor and there is a large rock burst, it is easy to cause the collapse of the empty roof roadway, and serious accidents may occur in severe cases. For roadways with sufficient width to allow passing, although passing is possible, that is, one piece of equipment withdraws and the other enters, but for these two pieces of equipment to enter and exit, the equipment state needs to be adjusted multiple times, which takes a lot of time, and a lot of manual cooperation is required to direct the backing or entry of the vehicle. Coupled with poor lighting in the roadway, collisions are also likely to occur during the passing process, so there are safety hazards.

[0003] Existing anchor drill rigs usually have relatively single functions, mainly focusing on drilling and anchor installation, and lack optimized designs for the special working conditions of TBM tunneling. In different stages before and after TBM tunneling, the requirements for support are different, and traditional anchor drill rigs are difficult to flexibly adapt to these changing needs.

[0004] In short, the problems that existing anchor drills need to solve are: difficult equipment conversion and passing. Single function, difficult to meet the support requirements in different stages of TBM tunneling. There are safety hazards and accidents are likely to occur during the operation process. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides an advanced double-mode anchor drill based on inclined-shaft TBM tunneling, which realizes efficient and flexible bolt support for surrounding rock in different stages before and after TBM tunneling.

[0006] The present invention is realized through the following technical solutions:

[0007] An advanced double-mode anchor drill based on inclined-shaft TBM tunneling includes: a drill rig body, an advanced propulsion structure, side anchor structures, and a driving structure. The advanced propulsion structure is arranged on the front side of the drill rig body, the side anchor structures are arranged on the left side and / or the right side of the drill rig body, and the driving structure drives the advanced propulsion structure and the side anchor structures to drill holes.

[0008] Specifically, the advanced propulsion structure includes:

[0009] A drill bit housing, the front end of which is rotatably connected to the drill rig body through a third hinge seat. The first driving end of the driving structure is connected to the middle part of the drill bit housing and drives the drill bit housing to rotate around the third hinge seat in the vertical plane;

[0010] An advancing drill bit, which is installed at the front end of the drill bit housing, and the advancing drill bit is driven to rotate by a first motor arranged inside the drill bit housing.

[0011] Specifically, the side anchor rod structure includes:

[0012] A rotating arm, the inner end of which is rotatably connected to the drill rig body. The second driving end of the driving structure is connected to the inner end of the rotating arm and drives the rotating arm to rotate around its inner end in the horizontal plane;

[0013] A side drill bit assembly, which is installed on the rotating arm.

[0014] Specifically, the driving assembly includes:

[0015] A hinge rod, the first end of which is rotatably connected to the middle part of the drill bit housing through a first hinge seat. The second end of the hinge rod is rotatably connected to a second hinge seat. A chute facing forward and backward is arranged on the drill rig housing, and the second hinge seat slides crosswise in the chute;

[0016] A semi-gear, which is fixedly connected to the inner end of the rotating arm;

[0017] A second toothed ring rod, which is arranged horizontally and facing forward and backward, and the second toothed ring rod meshes with the semi-gear;

[0018] A double-headed hydraulic cylinder, the first telescopic end of which is rotatably connected to the second hinge seat and drives the second hinge seat to slide forward and backward in the chute. The second telescopic end of the double-headed hydraulic cylinder is fixedly connected to the second toothed ring rod and drives the second toothed ring rod to move forward and backward.

[0019] Specifically, the side drill bit assembly includes:

[0020] A protective shell, which is installed on the rotating arm;

[0021] A combined driving assembly, which is arranged inside the protective shell and drives the anchor rod drill bit to rotate.

[0022] Further, the combined driving assembly includes:

[0023] A second motor, which is fixedly connected to the protective shell and / or the rotating arm;

[0024] An inner sliding rod, the first end of which is fixedly connected to the torque output shaft of the second motor;

[0025] An outer sliding sleeve rod, which is sleeved on the second end of the inner sliding rod, and key grooves and splines that are mutually adapted are provided on the inner side surface of the outer sliding sleeve rod and the outer side surface of the inner sliding rod;

[0026] The anchor rod bit is fixedly connected to the outer sliding sleeve rod, and the inner sliding rod, the outer sliding sleeve rod and the anchor rod bit are coaxially arranged.

[0027] Specifically, the combined drive assembly further includes:

[0028] A first toothed ring rod, which is sleeved on the outer sliding sleeve rod, and the inner side surface of the first toothed ring rod is rotatably connected to the outer side surface of the outer sliding sleeve rod;

[0029] A depth gear, which is fixedly connected to the torque output shaft of the third motor, the depth gear passes through a through hole provided on the protective housing and meshes with the first toothed ring rod, and drives the second toothed ring rod to move axially.

[0030] Optionally, limiting rings are clamped at both ends of the outer sliding sleeve rod, and the first toothed ring rod is arranged between the two limiting rings.

[0031] Optionally, the number of the side anchor rod structures is two, and the two side anchor rod structures are symmetrically arranged on the left side and the right side of the drilling rig body.

[0032] Specifically, when in a non-drilling state, the drill bit housing is in a horizontal state, and the projection of the rotating arm on the horizontal plane coincides with the drilling rig body.

[0033] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0034] By providing an advanced propulsion structure that can tilt and swing above the drilling rig body, the present invention realizes advanced drilling at different angles; by providing swingable side anchor rod structures on both sides of the drilling rig body, synchronous drilling and support of the surrounding rocks on both sides are realized, and through the drive structure, the coordinated movement of the advanced propulsion structure and the side anchor rod structures is realized, so as to flexibly adjust the drilling angle and position. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings illustrate exemplary embodiments of the present invention and are used in conjunction with the description thereof to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention, and the drawings are included in this specification and form a part of this specification, and do not constitute a limitation to the embodiments of the present invention.

[0036] Figure 1It is a schematic structural diagram of a double-mode drill for advanced bolt based on inclined shaft TBM tunneling according to the present invention. The figure shows the drilling state.

[0037] Figure 2 It is a schematic structural diagram of a double-mode drill for advanced bolt based on inclined shaft TBM tunneling according to the present invention. The figure shows the non-drilling state.

[0038] Figure 3 It is a schematic structural diagram of the advanced propulsion structure, side bolt structure and drive structure according to the present invention.

[0039] Figure 4 It is a schematic structural diagram of the advanced propulsion structure according to the present invention.

[0040] Figure 5 It is a cross-sectional view of the side bolt structure according to the present invention.

[0041] Figure 6 It is a schematic structural diagram of the side bolt structure according to the present invention.

[0042] Figure 7 It is an internal schematic diagram of the side bolt structure according to the present invention.

[0043] Reference numerals: 1 - advanced propulsion structure, 2 - side bolt structure, 3 - drill locomotive body, 4 - double-headed hydraulic cylinder, 5 - second toothed ring rod, 11 - drill bit housing, 12 - forward drill bit, 13 - first hinge seat, 14 - hinge rod, 15 - second hinge seat, 16 - third hinge seat, 21 - rotating arm, 22 - protective shell, 23 - second motor, 24 - inner sliding rod, 25 - outer sliding sleeve rod, 26 - first toothed ring rod, 27 - bolt drill bit, 28 - third motor, 29 - depth gear, 211 - half gear, 251 - limit ring. Detailed implementation manners

[0044] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific implementation manners described here are only used to explain the relevant content and do not limit the present invention.

[0045] In addition, it should be noted that only parts related to the present invention are shown in the drawings for the convenience of description.

[0046] In this application, unless otherwise clearly defined and limited, terms such as "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a direct connection, or an indirect connection through an intermediate medium. It can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] In this application, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0048] Without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] Traditional bolt drill rigs are mainly used for support operations in roadway excavation construction in coal mines and non-coal mines. Their main function is to reinforce the surrounding rock by drilling holes and installing bolts to ensure the stability and safety of the roadway. The following are the main characteristics and implementation schemes of traditional bolt drill rigs:

[0050] 1. Positioning and preparation: Move the bolt drill rig to the designated position and ensure that the equipment is placed stably. Check key components such as the hydraulic system and drill bit to ensure the normal operation of the equipment.

[0051] 2. Drilling operation: The operator starts the hydraulic system, adjusts the angle and height of the drill arm to align it with the predetermined drilling position. Start drilling. The operator monitors the drilling speed and force through the console to ensure the drilling quality. Appropriately adjust the drilling parameters according to the geological conditions. For example, when encountering hard rock, increase the drilling pressure, and when encountering soft rock, appropriately reduce the pressure.

[0052] 3. Installing bolts: After the drilling is completed, insert the bolts into the holes and use special tools (such as bolt machines) to fix the bolts in the holes. Ensure that the bolts are firm and reliable. If necessary, secondary reinforcement can be carried out.

[0053] 4. Cleaning and Maintenance: After completing the support of an area, clean up the debris and dust generated by drilling to keep the working environment clean. Conduct daily maintenance on the equipment, check key components such as hydraulic oil and filters to ensure the safety and reliability for the next use.

[0054] 5. Advantages and Limitations Advantages: Simple operation: The operation of traditional bolt drill rigs is relatively simple, with lower technical requirements for operators. Lower cost: Compared with new intelligent equipment, traditional bolt drill rigs have lower costs and are suitable for projects with limited budgets. Strong adaptability: They can work under various geological conditions with high flexibility.

[0055] Limitations: Lower efficiency: Due to mostly manual operation, the speed of drilling and installing bolts is slow, affecting the overall construction progress. High labor intensity: Operators need to frequently manually adjust equipment parameters, with a relatively high work intensity. Poor safety: There is more manual intervention, making it easy to have safety accidents, especially under complex geological conditions. Low precision: Manual operation is difficult to ensure the precision of drilling, which may affect the support effect.

[0056] Example 1

[0057] As Figure 1 and Figure 2 shown, a double-mode advanced bolt drill rig based on inclined shaft TBM tunneling includes: a drill rig body 3, an advanced propulsion structure 1, a side bolt structure 2, and a drive structure. The advanced propulsion structure 1 is arranged on the front side of the drill rig body 3, the side bolt structure 2 is arranged on the left side and / or right side of the drill rig body 3, and the drive structure drives the advanced propulsion structure 1 and the side bolt structure 2 to drill holes.

[0058] The advanced propulsion structure 1 is installed on the front side of the drill rig body 3 and is used to drill holes and install bolts for the surrounding rock in front before TBM tunneling, playing a role in pre-reinforcement.

[0059] The side bolt structure 2 is installed on the left side and / or right side of the drill rig body 3 and is used to drill holes and install bolts for the surrounding rock on both sides of the roadway during or after TBM tunneling.

[0060] The drill rig body 3 provides a stable support and moving platform for the entire drill rig. An advanced propulsion structure 1 is arranged above the drill rig body 3, which drills holes in the rock in front of the drill rig body 3. The drilling ability of the advanced propulsion structure 1 helps to pre-reinforce the rock formation and provides stable front support for the subsequent tunneling work. A side bolt structure 2 is arranged on one side of the advanced propulsion structure 1, and the side bolt structure 2 drills holes in the rock on both sides of the drill rig body 3.

[0061] In addition, as a preferred solution, the number of the side anchor structures 2 is two, and the two side anchor structures 2 are symmetrically arranged on the left and right sides of the drilling vehicle body 3. This bilateral drilling design can anchor the rock layers on both sides simultaneously, improving the overall stability and tunneling efficiency.

[0062] Embodiment 2

[0063] As Figure 3 and Figure 4 shown, the advanced propulsion structure 1 includes: a drill bit housing 11 and an advancing drill bit 12.

[0064] The front end of the drill bit housing 11 is rotatably connected to the drilling vehicle body 3 through a third hinge seat 16. The first driving end of the driving structure is connected to the middle of the drill bit housing 11, and drives the drill bit housing 11 to rotate around the third hinge seat 16 in the vertical plane; the drill bit housing 11 rotates around the third hinge seat 16 in a plane perpendicular to the ground, that is, it can swing up and down to adjust the angle of the drill hole.

[0065] The advancing drill bit 12 is installed at the front end of the drill bit housing 11, and the advancing drill bit 12 is driven to rotate by a first motor arranged in the drill bit housing 11. The first motor directly drives the advancing drill bit 12 to rotate for drilling operations.

[0066] The drill bit housing 11 is hingedly installed above the drilling vehicle body 3 through the third hinge seat 16. The hinged installation method allows the drill bit housing 11 to swing within a certain range, so as to adapt to different drill hole angles and depth requirements. The drill bit housing 11 swings obliquely around the hinge point of the third hinge seat 16 in a direction perpendicular to the drilling vehicle body 3. This oblique swinging ability makes the drilling operation more flexible, and can be adjusted according to the inclination angle and hardness of the rock in front, so as to achieve the best drilling effect. The swinging of the third hinge seat 16 drives the advancing drill bit 12 to swing, changing the inclination angle between the advancing drill bit 12 and the rock. This adjustment helps to optimize the force distribution during the drilling process, reduce drill bit wear, and improve drilling efficiency and drilling quality.

[0067] The drill bit housing 11 is the starting point of the drilling operation, providing protection for the drill bit and ensuring the accuracy of the drill hole. The advancing drill bit 12 is rotatably installed inside the drill bit housing 11. A first motor is arranged inside the drill bit housing 11. The first motor rotates to drive the advancing drill bit 12 to rotate, drilling the rock in front of the drilling vehicle body 3. By precisely controlling the rotation speed and torque of the first motor, the depth and angle of the drill hole can be adjusted to adapt to different rock layer conditions and construction requirements. Through this design, the drilling rig can drill the rock in front efficiently and precisely, providing necessary holes for the installation of anchor bolts. At the same time, this design also helps to improve the safety and reliability of the drilling operation, reducing accidents and failures during the construction process.

[0068] As Figure 5 、 Figure 6 andFigure 7 As shown, the side anchor rod structure 2 includes a rotating arm 21 and a side drill bit assembly.

[0069] The inner end of the rotating arm 21 is rotatably connected to the drill rig body 3, and the second driving end of the driving structure is connected to the inner end of the rotating arm 21 and drives the rotating arm 21 to rotate in the horizontal plane around its inner end; the side drill bit assembly is installed on the rotating arm 21.

[0070] When lateral drilling is required, the second driving end of the driving structure drives the rotating arm 21 to rotate in the horizontal plane around its inner end, and unfolds the side drill bit assembly to the working position. Supported by the rotating arm 21, the side drill bit assembly drills the rock on the side of the drill rig body 3.

[0071] When in the non-drilling state, the drill bit housing 11 is in a horizontal state, and the projection of the rotating arm 21 in the horizontal plane coincides with the drill rig body 3, which can reduce the overall width of the drill rig and facilitate movement and storage.

[0072] The driving assembly includes: a hinge rod 14, a semi-gear 211, a second toothed ring rod 5, and a double-headed hydraulic cylinder 4.

[0073] The first end of the hinge rod 14 is rotatably connected to the middle of the drill bit housing 11 through a first hinge seat 13, the second end of the hinge rod 14 is rotatably connected to a second hinge seat 15, and a front-to-back facing chute is provided on the drill rig housing, and the second hinge seat 15 slides across in the chute; the semi-gear 211 is fixedly connected to the inner end of the rotating arm 21; the second toothed ring rod 5 is arranged horizontally and front-to-back facing, and the second toothed ring rod 5 meshes with the semi-gear 211;

[0074] The first telescopic end of the double-headed hydraulic cylinder 4 is rotatably connected to the second hinge seat 15 and drives the second hinge seat 15 to slide back and forth in the chute, and the second telescopic end of the double-headed hydraulic cylinder 4 is fixedly connected to the second toothed ring rod 5 and drives the second toothed ring rod 5 to move back and forth.

[0075] A double-headed hydraulic cylinder 4 is provided on one side of the advanced propulsion structure 1 close to the side anchor rod structure 2, and the piston rod of the double-headed hydraulic cylinder 4 pushes the advanced propulsion structure 1 to tilt and swing in a direction perpendicular to the drill rig body 3. This tilting and swinging ability makes the drilling operation more flexible and can adapt to different rock formation conditions and drilling requirements. One side of the double-headed hydraulic cylinder 4 close to the side anchor rod structure 2 is fixedly connected to a second toothed ring rod 5 through a piston rod, and the second toothed ring rod 5 is arranged to slide between two side anchor rod structures 2. When the second toothed ring rod 5 slides, it drives the two side anchor rod structures 2 to swing. This synchronous swinging mechanism allows the side anchor rod structure 2 to be finely adjusted during drilling to achieve more precise control of the drilling angle and depth.

[0076] When the drill rig is working, the rock under the lower front of the advanced propulsion structure 1 in front of the drill rig body 3 inclines to facilitate drilling the rock. At the same time, it slides backward along the drill rig body 3 through the second toothed ring rod 5, thereby pushing the two side anchor rod structures 2 on both sides of the drill rig body 3 to expand, so as to anchor the rock layers on both sides simultaneously. After the construction is completed, the advanced propulsion structure 1 contracts above the drill rig body 3, reducing the occupied space of the drill rig and providing convenience for subsequent tunneling work. At the same time, the double-headed hydraulic cylinder 4 drives the second toothed ring rod 5 to slide to one side of the advanced propulsion structure 1, making the two side anchor rod structures 2 contract on both sides of the drill rig body 3. This contraction action not only improves the construction efficiency but also helps to protect the side anchor rod structures 2 and reduce possible damage during tunneling.

[0077] A first hinge seat 13 is fixedly installed below the drill bit housing 11. A hinge rod 14 is hinged below the first hinge seat 13. The first hinge seat 13 serves as a bridge connecting the first hinge seat 13 and the hinge rod 14, allowing the first hinge seat 13 to swing within a certain angle range. One end of the hinge rod 14 away from the first hinge seat 13 is hinged with a second hinge seat 15. The setting of the second hinge seat 15 further increases the swinging flexibility of the drill bit housing 11. A chute is provided on the upper side of the drill rig body 3, and the second hinge seat 15 is clamped in the chute, enabling the second hinge seat 15 to slide freely within the chute, thereby realizing the tilting and swinging movement of the drill bit housing 11. The middle section of the second hinge seat 15 is hinged with the piston rod of the double-headed hydraulic cylinder 4. The double-headed hydraulic cylinder 4 pushes the second hinge seat 15 to slide to the side away from the second toothed ring rod 5 through the telescopic rod. The second hinge seat 15 slides and presses the hinge rod 14, causing the first hinge seat 13 to move upward. The first hinge seat 13 drives the drill bit housing 11 to rotate around the hinge point of the third hinge seat 16. Through this design, the drill bit housing 11 can tilt and swing in a direction perpendicular to the drill rig body 3, and at the same time, through the control of the double-headed hydraulic cylinder 4, the angle adjustment of the drill bit housing 11 is realized. This flexibility enables the drill rig to adapt to different geological conditions and drilling requirements, improving the construction flexibility and efficiency.

[0078] The rotating arm 21 is used to achieve the positioning and angle adjustment of the side drilling operation. One end of the rotating arm 21 close to the second toothed ring rod 5 is meshed with the second toothed ring rod 5 through a fixedly connected half gear 211. This meshing method allows the rotating arm 21 to rotate by sliding along the second toothed ring rod 5. The rotating arm 21 is rotatably installed above the drilling rig body 3 through the half gear 211. This installation method enables the rotating arm 21 to rotate at a certain angle above the drilling rig body 3 to adapt to different drilling positions and angles. The double-headed hydraulic cylinder 4 drives the second toothed ring rod 5 to slide in the same direction as the second hinge seat 15 through the piston rod. When the second toothed ring rod 5 slides, the two rotating arms 21 are driven by the two meshed half gears 211 on both sides to contract or expand above the drilling rig body 3. This same-direction sliding mechanism ensures that the drilling rig can quickly return to the initial position after completing the drilling operation, preparing for the next tunneling operation, thereby improving the construction efficiency.

[0079] Embodiment Three

[0080] As Figure 5 、 Figure 6 and Figure 7 shown, the side drill bit assembly includes: a protective shell 22 and a combined drive assembly. The protective shell 22 is installed on the rotating arm 21; the combined drive assembly is arranged inside the protective shell 22 and drives the anchor bit 27 to rotate.

[0081] The combined drive assembly includes: a second motor 23, an inner sliding rod 24, an outer sliding sleeve rod 25, a first toothed ring rod 26, and a depth gear 29. The second motor 23 is fixedly connected to the protective shell 22 and / or the rotating arm 21; the first end of the inner sliding rod 24 is fixedly connected to the torque output shaft of the second motor 23; the outer sliding sleeve rod 25 is sleeved on the second end of the inner sliding rod 24, and the inner side surface of the outer sliding sleeve rod 25 and the outer side surface of the inner sliding rod 24 are provided with mutually adapted key grooves and splines; the anchor bit 27 is fixedly connected to the outer sliding sleeve rod 25, and the inner sliding rod 24, the outer sliding sleeve rod 25, and the anchor bit 27 are coaxially arranged.

[0082] The first toothed ring rod 26 is sleeved on the outer sliding sleeve rod 25, and the inner side surface of the first toothed ring rod 26 is rotatably connected to the outer side surface of the outer sliding sleeve rod 25; the depth gear 29 is fixedly connected to the torque output shaft of the third motor 28. The depth gear 29 passes through a through hole provided on the protective shell 22 and meshes with the first toothed ring rod 26, and drives the second toothed ring rod 5 to move axially. Limiting rings 251 are clamped at both ends of the outer sliding sleeve rod 25, and the first toothed ring rod 26 is arranged between the two limiting rings 251.

[0083] Above one end of the rotating arm 21 close to the double-headed hydraulic cylinder 4, a second motor 23 is fixedly installed. The second motor 23 is responsible for providing the necessary rotational power for the drilling operation. The rotating shaft of the second motor 23 is fixedly connected to an inner sliding rod 24. The inner sliding rod 24 is an intermediary for transmitting the rotational power of the motor, and its design allows for precise rotational movement driven by the motor. At one end of the inner sliding rod 24 away from the second motor 23, an outer sliding sleeve rod 25 is provided. Splines are provided on the side wall of the inner sliding rod 24, and a number of key grooves are opened on the inner side wall of the outer sliding sleeve rod 25. The inner sliding rod 24 and the outer sliding sleeve rod 25 are synchronously rotated through the cooperation of the splines and the key grooves, which helps to improve the transmission efficiency and stability. One end of the outer sliding sleeve rod 25 away from the inner sliding rod 24 is fixedly connected to an anchor bit 27. The two anchor bits 27 rotate to drill the rocks on both sides of the drill rig body 3. The anchoring efficiency is improved, and the overall stability of the rock formation is ensured. The second motor 23 drives the inner sliding rod 24, the outer sliding sleeve rod 25, and the anchor bit 27 to rotate through the rotating shaft, thereby improving the efficiency of the drilling operation. The two anchor bits 27 rotate to drill the rocks on both sides of the drill rig body 3. The design of the rotating arm 21 enables the anchor bit 27 to perform multi-angle drilling operations above the drill rig body 3, enhancing the flexibility of construction and enabling it to adapt to different geological conditions and construction requirements. After the construction is completed, the anchor bit 27 can be retracted, reducing the occupied space and providing more operating space for the tunneling of the roadheader and other construction activities.

[0084] Above the rotating arm 21, a protective shell 22 is fixedly installed. The function of the protective shell 22 is to provide support and limit for the internal structure, ensuring its stability and accuracy during rotation and sliding. An outer toothed ring rod 26 is rotatably sleeved outside the outer sliding sleeve rod 25. The rotational cooperation between the outer toothed ring rod 26 and the outer sliding sleeve rod 25 allows the outer sliding sleeve rod 25 to slide while rotating, increasing the flexibility of the drilling operation. The protective shell 22 supports and limits the internal outer toothed ring rod 26 to prevent it from sliding excessively, thus ensuring the safety of the drilling operation. At both ends of the outer side wall of the outer sliding sleeve rod 25, limiting rings 251 are fixedly sleeved. The limiting rings 251 are rotatably clamped on the inner side wall of the outer toothed ring rod 26. This clamping method allows the limiting rings 251 to rotate with the rotation of the outer toothed ring rod 26 while restricting the sliding of the outer sliding sleeve rod 25, ensuring the accuracy of the drilling operation. When the outer toothed ring rod 26 slides, it drives the outer sliding sleeve rod 25 to slide through the two limiting rings 251, enabling the outer sliding sleeve rod 25 to perform precise sliding adjustment according to the construction needs to adapt to different drilling depths and angles. When the inner sliding rod 24 drives the outer sliding sleeve rod 25 to rotate, the outer sliding sleeve rod 25 rotates inside the outer toothed ring rod 26 through the two limiting rings 251. This rotation mechanism allows the anchor bit 27 to be retracted after the construction is completed, reducing the occupied space and providing more operating space for the tunneling of the roadheader and other construction activities.

[0085] On one side of the protective shell 22, a third motor 28 is fixedly installed. The rotating shaft of the third motor 28 is fixedly connected with an anchor rod depth gear 29. The function of the third motor 28 is to provide power for the anchor rod depth gear 29, so as to achieve precise control of the drilling depth of the anchor rod bit 27. The anchor rod depth gear 29 meshes with the first toothed ring rod 26. This meshing relationship allows the sliding of the first toothed ring rod 26 to be controlled by the rotation of the motor. The third motor 28 drives the anchor rod depth gear 29 to rotate through the rotating shaft. The rotation of the anchor rod depth gear 29 drives the first toothed ring rod 26 to slide. This sliding adjusts the position of the outer sliding sleeve rod 25, and further affects the drilling depth of the anchor rod bit 27. The first toothed ring rod 26 drives the outer sliding sleeve rod 25 to slide outside the inner sliding rod 24, driving the anchor rod bit 27 to approach or move away from the drilling rig body 3, so as to change the drilling depth of the two anchor rod bits 27 on the rock. The combined use of the third motor 28 and the depth gear 29 enables the drilling depth of the anchor rod bit 27 to be quickly adjusted, thereby improving the construction efficiency.

[0086] When this embodiment is specifically used, first, the drilling rig body 3 is accurately positioned at an appropriate position to ensure its stability and operational convenience. Through the piston rod of the double-headed hydraulic cylinder 4, the tilting swing and the expansion or contraction of the rotating arm 21 of the drill bit housing 11 are realized to adapt to different drilling angles and depths; start the first motor to drive the forward drill bit 12 to drill the rock ahead, and at the same time, the second motor 23 drives the anchor rod bit 27 to drill the rock on both sides. The third motor 28 controls the drilling depth of the anchor rod bit 27 through the anchor rod depth gear 29; through the cooperation of the third motor 28 and the anchor rod depth gear 29, precise control of the drilling depth of the anchor rod bit 27 is achieved to meet the drilling requirements of different rock formations; after the construction is completed, the double-headed hydraulic cylinder 4 operates to contract the drill bit housing 11 and the rotating arm 21, reducing the occupied space and providing convenience for the tunneling of the roadheader and other construction activities. The design of the entire drilling rig allows for quick adjustment of the drilling angle and depth, improving the construction efficiency. At the same time, the double-sided drilling design enhances the construction flexibility and can adapt to different geological conditions and construction requirements.

[0087] In the description of this specification, the description with reference to terms such as "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0088] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0089] Those skilled in the art should understand that the above-described embodiments are merely for clearly explaining the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications can be made based on the above invention, and these changes or modifications are still within the scope of the present invention.

Claims

1. A double-mode drill for bolt leading ahead based on inclined shaft TBM tunneling, characterized in that, Including: A drilling rig body (3), an advanced propulsion structure (1), a side bolt structure (2) and a driving structure. The advanced propulsion structure (1) is arranged on the front side of the drilling rig body (3), the side bolt structure (2) is arranged on the left side and / or the right side of the drilling rig body (3), and the driving structure drives the advanced propulsion structure (1) and the side bolt structure (2) to drill holes.

2. The double-mode drill rig for advancing bolts based on inclined shaft TBM tunneling according to claim 1, wherein, The advanced propulsion structure (1) includes: A drill bit housing (11), the front end of which is rotatably connected to the drilling rig body (3) through a third hinge seat (16). The first driving end of the driving structure is connected to the middle part of the drill bit housing (11) and drives the drill bit housing (11) to rotate in the vertical plane around the third hinge seat (16); An advancing drill bit (12), which is installed at the front end of the drill bit housing (11), and the advancing drill bit (12) is driven to rotate by a first motor arranged in the drill bit housing (11).

3. The double-mode drill for bolt leading of inclined shaft TBM tunneling according to claim 2, wherein, The side bolt structure (2) includes: A rotating arm (21), the inner end of which is rotatably connected to the drilling rig body (3). The second driving end of the driving structure is connected to the inner end of the rotating arm (21) and drives the rotating arm (21) to rotate in the horizontal plane around its inner end; A side drill bit assembly, which is installed on the rotating arm (21).

4. A double-mode advanced anchor drill based on inclined shaft TBM tunneling according to claim 3, characterized in that, The driving assembly includes: A hinge rod (14), the first end of which is rotatably connected to the middle part of the drill bit housing (11) through a first hinge seat (13). The second end of the hinge rod (14) is rotatably connected to a second hinge seat (15). A chute facing forward and backward is arranged on the drilling rig housing, and the second hinge seat (15) slides crosswise in the chute; A half gear (211), which is fixedly connected to the inner end of the rotating arm (21); A second toothed ring rod (5), which is arranged horizontally and facing forward and backward, and the second toothed ring rod (5) meshes with the half gear (211); A double-headed hydraulic cylinder (4), the first telescopic end of which is rotatably connected to the second hinge seat (15) and drives the second hinge seat (15) to slide forward and backward in the chute. The second telescopic end of the double-headed hydraulic cylinder (4) is fixedly connected to the second toothed ring rod (5) and drives the second toothed ring rod (5) to move forward and backward.

5. A double-mode advanced anchor drill based on inclined shaft TBM tunneling according to claim 3, characterized in that The side drill bit assembly includes: A protective shell (22), which is installed on the rotating arm (21); A combined driving assembly, which is arranged in the protective shell (22) and drives a bolt drill bit (27) to rotate.

6. The double-mode drill rig for bolt leading of inclined shaft TBM tunneling according to claim 5, wherein, The combined driving assembly includes: A second motor (23), which is fixedly connected to the protective shell (22) and / or the rotating arm (21); An inner sliding rod (24), the first end of which is fixedly connected to the torque output shaft of the second motor (23); An outer sliding sleeve rod (25), which is sleeved on the second end of the inner sliding rod (24), and key grooves and splines that match each other are arranged on the inner side surface of the outer sliding sleeve rod (25) and the outer side surface of the inner sliding rod (24); The bolt drill bit (27) is fixedly connected to the outer sliding sleeve rod (25), and the inner sliding rod (24), the outer sliding sleeve rod (25) and the bolt drill bit (27) are coaxially arranged.

7. The advanced double-mode anchor drill based on inclined shaft TBM tunneling according to claim 6, characterized in that, The combined drive assembly further includes: A first toothed ring rod (26) sleeved on the outer sliding sleeve rod (25), and the inner side surface of the first toothed ring rod (26) is rotatably connected to the outer side surface of the outer sliding sleeve rod (25); A depth gear (29) fixedly connected to the torque output shaft of the third motor (28), the depth gear (29) passes through a through hole provided on the protective housing (22) and meshes with the first toothed ring rod (26), and drives the second toothed ring rod (5) to move axially.

8. The double-mode drill for advancing bolts based on inclined shaft TBM tunneling according to claim 6, wherein, Both ends of the outer sliding sleeve rod (25) are clamped with limiting rings (251), and the first toothed ring rod (26) is arranged between the two limiting rings (251).

9. A double-mode drill for bolt leading based on inclined shaft TBM tunneling according to claim 1, characterized in that The number of the side anchor rod structures (2) is two, and the two side anchor rod structures (2) are symmetrically arranged on the left side and the right side of the drill rig body (3).

10. A double-mode drill for advancing bolts based on inclined shaft TBM tunneling according to claim 4, characterized in that, When in a non-drilling state, the drill bit housing (11) is in a horizontal state, and the projection of the rotating arm (21) on the horizontal plane coincides with the drill rig body (3).

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