Front drilling arm mechanism of anchor-digging integrated machine

Abstract

The utility model provides a kind of front drill arm part mechanism of excavating anchor integrated machine, it is related to coal mine equipment technical field, including slide rail assembly, fixed frame, lifting oil cylinder, front support, standing platform, support adjustment oil cylinder, front drill arm telescopic component, swing oil cylinder I and top drilling device;The slide rail assembly provides front and back sliding basis for front drill arm part, the fixed frame is hinged in slide rail assembly front end;The both ends of the lifting oil cylinder are respectively hinged with slide rail assembly, fixed frame;The utility model realizes the accurate sliding of front drill arm part whole front and back by slide rail assembly, sliding oil cylinder drives slide rail inner sleeve to move stably along slide rail base, and different operation distance can be flexibly adapted;Lifting oil cylinder drives fixed frame lifting by symmetrically arranged double oil cylinder, ensure that front drill arm part is stably operated under different roadway height;Front drill arm telescopic component and swing oil cylinder I synergistic effect, so that front drill arm part can cover operation area of different width, height and distance, improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of coal mining equipment technology, and in particular to a front drilling arm mechanism of a tunneling and anchoring integrated machine. Background Technology

[0002] In underground engineering excavation operations such as coal mines and tunnels, the tunnel boring machine (TBM) is the core equipment for achieving simultaneous excavation and anchor bolt support. Its front drilling arm mechanism directly determines the construction efficiency and support safety of the anchor bolt / anchor cable holes. Currently, the front drilling arm mechanisms of TBMs on the market generally suffer from limited operational coverage: most mechanisms can only achieve position adjustment in a single direction, such as only having forward / backward movement or up / down lifting functions, making it difficult to simultaneously adapt to different roadway widths and working distances. When the roadway width changes, the front drilling arm cannot flexibly expand its lateral coverage, requiring frequent adjustments to the overall machine position, leading to construction interruptions. When the distance to the working point changes, the forward / backward movement adjustment accuracy is low, easily resulting in drilling position deviations, severely affecting the efficiency of support operations. Regarding support, traditional front support mechanisms are mostly fixed structures, capable only of simple lifting and lowering. They cannot adjust the fit according to the inclination angle of the roadway roof, easily leading to excessive gaps between the support frame and the roof, resulting in insufficient support stability. Furthermore, the fixed support area makes it difficult to cover a sufficient area when working in wide roadways, compromising operator safety. In terms of drilling adjustment, existing top drill devices mostly rely on manual or single-cylinder drive for orientation and angle adjustment, resulting in low precision. Horizontal adjustment is difficult to achieve precise small-amplitude swaying, and vertical adjustment cannot flexibly adapt to drilling requirements at different inclination angles, leading to inconsistent drilling quality. Some drill holes even fail to meet the mechanical requirements of anchor bolt support, posing potential safety hazards. Therefore, this utility model proposes a front drilling arm mechanism for an integrated tunneling and anchoring machine to solve the problems existing in the prior art. Utility Model Content

[0003] To address the aforementioned issues, this utility model proposes a front drilling arm mechanism for an integrated tunneling and anchoring machine. This mechanism enables precise forward and backward sliding of the entire front drilling arm via a slide rail assembly. A sliding cylinder drives the inner sleeve of the slide rail to move smoothly along the slide rail base, allowing for flexible adaptation to different working distances. A lifting cylinder drives the fixed frame to lift and lower via symmetrically arranged double cylinders, ensuring stable operation of the front drilling arm at different roadway heights.

[0004] To achieve the purpose of this utility model, the present utility model is implemented through the following technical solution: a front drilling arm mechanism of a tunneling and anchoring integrated machine, including a slide rail assembly, a fixed frame, a lifting cylinder, a front support, a personnel platform, a support adjustment cylinder, a front drilling arm telescopic assembly, a swing cylinder I, and a top drilling device; the slide rail assembly provides a front and rear sliding foundation for the front drilling arm, and the fixed frame is hinged to the front end of the slide rail assembly; the two ends of the lifting cylinder are respectively hinged to the slide rail assembly and the fixed frame, and are used to drive the fixed frame to lift the front drilling arm as a whole upward or downward; the front support is installed on the top of the fixed frame, and the personnel platform is hinged to the rear surface of the fixed frame; The two ends of the support adjustment cylinder are respectively hinged to the personnel platform and the front support, and are used to adjust the lifting of the personnel platform; the front drill arm telescopic assembly is connected to the fixed frame, the swing cylinder I is fixed to the top of the front drill arm telescopic assembly, and the jacking device is installed above the swing cylinder I; the front drill arm telescopic assembly drives the jacking device to move left and right, and the swing cylinder I drives the jacking device to rotate left and right, and the two work together to realize the operation of top plate anchor bolts and anchor cable holes with different width ranges.

[0005] A further improvement is that the front drilling arm telescopic assembly includes a front drilling arm telescopic cylinder and a front drilling arm inner sleeve. The front drilling arm telescopic cylinder is located at both ends inside the fixed frame, and the output end of the front drilling arm telescopic cylinder is connected to the front drilling arm inner sleeve. The swing cylinder I is located on the front drilling arm inner sleeve.

[0006] Further improvements are made in the following ways: the slide rail assembly includes at least two sets of slide rail bases, at least two sets of slide rail inner sleeves, and two sets of two sliding cylinders; the slide rail bases are symmetrically installed on both sides of the lifting arm of the tunneling and anchoring machine, and the slide rail inner sleeves are correspondingly nested inside the slide rail bases; one end of the cylinder body of the sliding cylinder is hinged to the connecting lug at the rear end inside the slide rail base, and one end of the telescopic rod of the sliding cylinder is hinged to the connecting lug at the front end inside the slide rail inner sleeve; when the sliding cylinder extends or retracts, it drives the slide rail inner sleeve to slide back and forth along the slide rail grooves on both sides of the slide rail base; the connecting lugs on the left and right sides of the rear end of the fixing frame are respectively hinged to the front ends of the two sets of slide rail inner sleeves.

[0007] Further improvements include: at least two sets of lifting cylinders are provided and arranged symmetrically on the left and right, and one end of the cylinder body of the lifting cylinder is hinged to the connecting lug above the tail end of the inner sleeve of the slide rail, and one end of the telescopic rod of the lifting cylinder is hinged to the connecting lug in the middle of the fixed frame.

[0008] A further improvement is that the standing platform is equipped with a side plate that can rotate outward, and the side plate is used to increase the standing area of ​​the operator so that the operator can perform operations such as changing drill rods and installing anchoring agents.

[0009] Further improvements include: the front support comprises a support sleeve assembly, a top beam connecting seat, a swing cylinder II, a support frame, and a support telescopic assembly; the support sleeve assembly is installed on the top of the fixed frame, and the top beam connecting seat is hinged to the top of the support sleeve assembly; the swing cylinder II is installed above the top beam connecting seat, and the bottom of the support frame is connected to the swing cylinder II; the support telescopic assembly is connected to both sides of the support frame, the support sleeve assembly drives the support frame to rise and fall, the swing cylinder II drives the support frame to rotate back and forth, and the support telescopic assembly drives itself to extend and retract to adjust the support area.

[0010] A further improvement is that the support sleeve assembly includes an outer support sleeve, an inner support sleeve, and a support cylinder; the outer support sleeve is installed at the top center of the fixed frame, and the inner support sleeve is nested inside the outer support sleeve; one end of the cylinder body of the support cylinder is hinged to the connecting block inside the outer support sleeve, and one end of the telescopic rod of the support cylinder is hinged to the connecting block inside the inner support sleeve, and when the support cylinder extends or retracts, it pushes the inner support sleeve to rise and fall along the outer support sleeve.

[0011] A further improvement is that the support telescopic assembly includes at least two sets of support telescopic sleeves and at least two sets of support telescopic cylinders; one end of the square tube of the support telescopic sleeve is placed inside the square tubes on the left and right sides of the support frame, and the support telescopic cylinder is placed inside the support telescopic sleeve; one end of the cylinder body of the support telescopic cylinder is hinged to the connecting block inside the square tube of the support frame, and one end of the telescopic rod of the support telescopic cylinder is hinged to the connecting block inside the support telescopic sleeve; when the support telescopic cylinder extends or retracts, it pushes the support telescopic sleeve to extend outward or retract inward along the square tube of the support frame.

[0012] Further improvements are made in the following aspects: The top drilling device includes a rotary fixed base, an adjustment cylinder, a drilling rig fixing assembly, an adjusting cylinder, and a front-mounted anchor drilling rig; the rotary fixed base is fixed above the swing cylinder I; one end of the adjustment cylinder is connected to the rotary fixed base, and the other end is connected to the drilling rig fixing assembly; the drilling rig fixing assembly is connected to the front-mounted anchor drilling rig and is used to fix the front-mounted anchor drilling rig; both ends of the adjusting cylinder are hinged to the rotary fixed base and the drilling rig fixing assembly, respectively.

[0013] Further improvements include: the drilling rig fixing assembly includes at least two sets of drilling rig fixing seats and a drilling rig connecting plate; the drilling rig connecting plate is installed on the base plate of the front-mounted anchor drilling rig, and the drilling rig fixing seats are arranged symmetrically on the left and right sides; the overlapping part of the front-mounted anchor drilling rig and the drilling rig connecting plate is embedded in one end of the opening groove of the drilling rig fixing seat and fixedly connected; one end of the cylinder body of the adjustment cylinder is fixed above the U-shaped groove of the rotary fixing seat, and one end of the telescopic rod of the adjustment cylinder is connected to one end of the cylinder of one set of the drilling rig fixing seats. The fixed connection is achieved by fixing one end of the cylindrical part of the other set of drilling rig fixed bases to the circular hole at the symmetrical position of the U-shaped groove of the rotary fixed base; when the adjustment cylinder extends or retracts, it drives the front machine-mounted anchor drilling rig to swing slightly left and right to accurately adjust the drilling position; one end of the cylinder body of the adjustment cylinder is hinged to the connecting lug above the rotary fixed base, and one end of the extension rod of the adjustment cylinder is hinged to the connecting lug on the drilling rig connecting plate; when the adjustment cylinder extends or retracts, it drives the front machine-mounted anchor drilling rig to swing back and forth to adapt to the drilling requirements of different inclination angles.

[0014] The beneficial effects of this utility model are as follows: 1. This utility model achieves precise forward and backward sliding of the entire front drilling arm through a slide rail assembly. The sliding cylinder drives the inner sleeve of the slide rail to move smoothly along the slide rail base, which can flexibly adapt to different working distances. The lifting cylinder drives the fixed frame to lift and lower through symmetrically arranged double cylinders, ensuring stable operation of the front drilling arm at different roadway heights. The front drilling arm telescopic assembly and the swing cylinder I work together. The former drives the top drilling device to move left and right to expand the lateral range, and the latter drives the top drilling device to rotate left and right to adjust the working angle. The combination of the three enables the front drilling arm to cover working areas of different widths, heights and distances without the need for frequent adjustments to the overall machine position, thus improving work efficiency.

[0015] 2. The front support of this utility model optimizes the support effect through the coordinated operation of multiple components: the support sleeve assembly achieves precise lifting and lowering of the support frame under the drive of the support cylinder, ensuring that the support frame is in close contact with the roof height; the swing cylinder II drives the support frame to rotate back and forth, which can adjust the fit according to the roof tilt angle and eliminate support gaps; the support telescopic assembly extends the support telescopic sleeve outward through the support telescopic cylinder, greatly expanding the support area and improving the support coverage when working in wide tunnels; the support adjustment cylinder synchronously adjusts the height of the personnel platform; the personnel platform has a built-in rotatable side plate, which can expand the standing area of ​​the operator, avoid operational errors caused by space constraints, and further improve the safety of operation.

[0016] 3. The top drilling device of this utility model achieves high-precision adjustment through the coordinated operation of two hydraulic cylinders: the deviation adjustment cylinder drives the drilling rig fixing assembly to cause the front-mounted anchor bolt drilling rig to swing slightly left and right, which can accurately correct the horizontal drilling orientation deviation; the adjustment cylinder drives the drilling rig connecting plate through the hinge point to cause the front-mounted anchor bolt drilling rig to swing back and forth, which can flexibly adapt to the drilling requirements of different inclination angles. Whether it is a horizontal anchor bolt hole or a vertical anchor cable hole, it can achieve precise positioning. The drilling rig fixing assembly is fixed by the combination of the double drilling rig fixing seat and the drilling rig connecting plate to ensure that the front-mounted anchor bolt drilling rig has no displacement during the adjustment process, further ensuring drilling accuracy, improving the drilling qualification rate, and meeting the mechanical performance requirements of anchor bolt support. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the front support of this utility model; Figure 3 This is a schematic diagram of the top drilling device of this utility model; Figure 4 This is a side view of the top drilling device of this utility model.

[0018] The components include: 1. Fixed frame; 2. Lifting cylinder; 3. Front support; 4. Standing platform; 5. Support adjustment cylinder; 6. Swing cylinder I; 7. Top drilling device; 8. Slide rail base; 9. Slide rail inner sleeve; 10. Sliding cylinder; 11. Top beam connecting seat; 12. Swing cylinder II; 13. Support frame; 14. Support outer sleeve; 15. Support inner sleeve; 16. Support telescopic sleeve; 17. Support telescopic cylinder; 18. Rotary fixed seat; 19. Adjustment cylinder; 20. Adjustment cylinder; 21. Front machine-mounted anchor drilling rig; 22. Drilling rig fixed seat; 23. Drilling rig connecting plate; 24. Front drill arm telescopic cylinder; 25. Front drill arm inner sleeve. Detailed Implementation

[0019] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0020] Example 1 according to Figure 1 , 2As shown in Figures 3 and 4, this embodiment proposes a front drilling arm mechanism for an integrated tunneling and anchoring machine, including a slide rail assembly, a fixed frame 1, a lifting cylinder 2, a front support 3, a personnel platform 4, a support adjustment cylinder 5, a front drilling arm telescopic assembly, a swing cylinder 16, and a top drilling device 7; the slide rail assembly provides a sliding foundation for the front drilling arm, and the fixed frame 1 is hinged to the front end of the slide rail assembly; the two ends of the lifting cylinder 2 are respectively hinged to the slide rail assembly and the fixed frame 1, and are used to drive the fixed frame 1 to lift the front drilling arm as a whole upward or downward; the front support 3 is installed on the top of the fixed frame 1, and the personnel platform 4 is hinged to the rear surface of the fixed frame 1; The two ends of the support adjustment cylinder 5 are hinged to the personnel platform 4 and the front support 3 respectively, and are used to adjust the lifting of the personnel platform 4; the front drill arm telescopic assembly is connected to the fixed frame 1, the swing cylinder I6 is fixed to the top of the front drill arm telescopic assembly, and the top drilling device 7 is installed above the swing cylinder I6; the front drill arm telescopic assembly drives the top drilling device 7 to move left and right, and the swing cylinder I6 drives the top drilling device 7 to rotate left and right, and the two cooperate to realize the operation of top plate anchor bolts and anchor cable holes with different width ranges. In use, the slide rail assembly provides basic support for the overall mechanism to slide back and forth; the lifting cylinder 2 transmits driving force through the hinge points at both ends, and when it extends or retracts, it drives the fixed frame 1 to rotate around the hinge point with the slide rail assembly, thereby realizing the overall lifting and lowering of the front drilling arm; the support adjustment cylinder 5 synchronously adjusts the height of the standing platform 4 to facilitate personnel operation; the front drilling arm extension assembly changes the left and right horizontal position of the top drilling device 7 through the extension and retraction action, and the swing cylinder I6 drives the top drilling device 7 to rotate left and right around the vertical axis. The two work together to expand the working coverage width and meet the construction needs of anchor bolts and anchor cable holes in roofs of different widths.

[0021] The front drill arm telescopic assembly includes a front drill arm telescopic cylinder 24 and a front drill arm inner sleeve 25. The front drill arm telescopic cylinder 24 is located at both ends inside the fixed frame 1, and the output end of the front drill arm telescopic cylinder 24 is connected to the front drill arm inner sleeve 25. The swing cylinder I6 is located on the front drill arm inner sleeve 25. The front drill arm telescopic assembly changes the left and right horizontal position of the top drill device 7 through telescopic movement.

[0022] The slide rail assembly includes at least two sets of slide rail bases 8, at least two sets of slide rail inner sleeves 9, and two sets of two sliding cylinders 10. The slide rail bases 8 are symmetrically installed on both sides of the lifting arm of the tunneling and anchoring machine, and the slide rail inner sleeves 9 are correspondingly nested inside the slide rail bases 8. One end of the cylinder body of the sliding cylinder 10 is hinged to the connecting lug at the rear end inside the slide rail base 8, and one end of the telescopic rod of the sliding cylinder 10 is hinged to the connecting lug at the front end inside the slide rail inner sleeve 9. When the sliding cylinder 10 extends or retracts, it drives the slide rail inner sleeve 9 to slide back and forth along the slide rail grooves on both sides of the slide rail base 8. The connecting lugs on the left and right sides of the rear end of the fixing frame 1 are respectively hinged to the front ends of the two sets of slide rail inner sleeves 9. The slide rail base 8 serves as a fixed foundation, providing sliding guidance for the slide rail inner sleeve 9. The sliding cylinder 10 converts hydraulic energy into mechanical energy through the hinged relationship between the cylinder body and the slide rail base 8, and the telescopic rod and the slide rail inner sleeve 9. During extension and retraction, it pushes the slide rail inner sleeve 9 to move back and forth along the slide rail groove of the slide rail base 8. The fixed frame 1 is hinged to the front end of the slide rail inner sleeve 9 and slides back and forth synchronously with the slide rail inner sleeve 9, ultimately realizing the adjustment of the overall front and rear position of the front drilling arm to adapt to different working distance requirements.

[0023] At least two sets of lifting cylinders 2 are provided and arranged symmetrically on the left and right. One end of the cylinder body of the lifting cylinder 2 is hinged to the connecting lug above the tail end of the inner sleeve 9 of the slide rail, and one end of the telescopic rod of the lifting cylinder 2 is hinged to the connecting lug in the middle of the fixed frame 1. The symmetrical arrangement of the two lifting cylinders 2 can balance the force on the fixed frame 1 and avoid tilting caused by unilateral force. The lifting cylinder 2 generates an upward or downward thrust / pull force when it extends or retracts through the hinge between the cylinder body and the inner sleeve 9 of the slide rail and the telescopic rod and the fixed frame 1, which drives the fixed frame 1 to rotate around the hinge point with the inner sleeve 9 of the slide rail, thereby realizing the overall lifting or lowering of the front drilling arm, accurately adjusting the working height, and adapting to construction scenarios with different tunnel heights.

[0024] The manned platform 4 is equipped with outwardly rotatable side panels, which increase the standing area for operators to perform tasks such as changing drill pipes and installing anchoring agents. The manned platform 4 provides basic standing space for operators, and its outwardly rotatable side panels flip outwards during operation, directly expanding the standing area. This expanded standing area allows operators to more flexibly perform operations such as changing drill pipes and installing anchoring agents, reducing work delays caused by limited operating space, and improving the stability and safety of personnel during operation.

[0025] The front support 3 includes a support sleeve assembly, a top beam connecting seat 11, a swing cylinder II 12, a support frame 13, and a support telescopic assembly. The support sleeve assembly is installed on the top of the fixed frame 1, and the top beam connecting seat 11 is hinged to the top of the support sleeve assembly. The swing cylinder II 12 is installed above the top beam connecting seat 11, and the bottom of the support frame 13 is connected to the swing cylinder II 12. The support telescopic assembly is connected to both sides of the support frame 13. The support sleeve assembly drives the support frame 13 to rise and fall, the swing cylinder II 12 drives the support frame 13 to rotate back and forth, and the support telescopic assembly drives itself to extend and retract to adjust the support area. The support sleeve assembly provides a lifting base for the front support 3. Through its telescopic movement, it drives the top beam connecting seat 11, the swing cylinder II 12, and the support frame 13 to rise and fall synchronously, adjusting the support frame 13 to a height that fits against the roof. The swing cylinder II 12 can drive the support frame 13 to rotate back and forth around the horizontal axis, correcting the contact angle between the support frame 13 and the roof to ensure close contact. The support telescopic assembly changes the coverage area on both sides of the support frame 13 through its telescopic movement, expanding the support area. The three components work together to improve the support stability of the front support 3 and ensure the safety of the operators.

[0026] The support sleeve assembly includes an outer support sleeve 14, an inner support sleeve 15, and a support cylinder; the outer support sleeve 14 is installed at the top center of the fixed frame 1, and the inner support sleeve 15 is nested inside the outer support sleeve 14; one end of the cylinder body of the support cylinder is hinged to the connecting block inside the outer support sleeve 14, and one end of the telescopic rod of the support cylinder is hinged to the connecting block inside the inner support sleeve 15, and when the support cylinder extends or retracts, it pushes the inner support sleeve 15 to rise and fall along the outer support sleeve 14. The outer sleeve 14 serves as a fixed component, providing a lifting guide for the inner sleeve 15. The hydraulic cylinder converts hydraulic energy into linear motion through the hinge between the cylinder body and the outer sleeve 14, and the telescopic rod and the inner sleeve 15. During extension and retraction, the inner sleeve 15 is pushed to slide up and down along the inner wall of the outer sleeve 14. The top of the inner sleeve 15 is connected to the top beam connecting seat 11, which rises and falls synchronously with the inner sleeve 15, thereby driving the support frame 13 to adjust its height, ensuring that the support frame 13 can adapt to the height requirements of different roadway roofs.

[0027] The support telescopic assembly includes at least two sets of support telescopic sleeves 16 and at least two sets of support telescopic cylinders 17; one end of the square tube of the support telescopic sleeve 16 is placed inside the square tubes on the left and right sides of the support frame 13, and the support telescopic cylinder 17 is placed inside the support telescopic sleeve 16; one end of the cylinder body of the support telescopic cylinder 17 is hinged to the connecting block inside the square tube of the support frame 13, and one end of the telescopic rod of the support telescopic cylinder 17 is hinged to the connecting block inside the support telescopic sleeve 16; when the support telescopic cylinder 17 extends or retracts, it pushes the support telescopic sleeve 16 to extend outward or retract inward along the square tube of the support frame 13. The left and right square tubes of the support frame 13 provide sliding guides for the support telescopic sleeve 16. The support telescopic cylinder 17 is built into the support telescopic sleeve 16 and transmits power through the hinge between the cylinder body and the support frame 13, and between the telescopic rod and the support telescopic sleeve 16. When the support telescopic cylinder 17 extends or retracts, it pushes the support telescopic sleeve 16 to extend outward or retract inward along the square tube of the support frame 13. When it extends outward, it directly expands the lateral support range of the front support 3. When it retracts inward, it facilitates the overall movement or storage of the mechanism, so as to realize the flexible adjustment of the support area.

[0028] Example 2 according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a front drilling arm mechanism for an integrated tunneling and anchoring machine, including a slide rail assembly, a fixed frame 1, a lifting cylinder 2, a front support 3, a personnel platform 4, a support adjustment cylinder 5, a front drilling arm telescopic assembly, a swing cylinder 16, and a top drilling device 7; the slide rail assembly provides a sliding foundation for the front drilling arm, and the fixed frame 1 is hinged to the front end of the slide rail assembly; the two ends of the lifting cylinder 2 are respectively hinged to the slide rail assembly and the fixed frame 1, and are used to drive the fixed frame 1 to lift the front drilling arm as a whole upward or downward; the front support 3 is installed on the top of the fixed frame 1, and the personnel platform 4 is hinged to the rear surface of the fixed frame 1; The two ends of the support adjustment cylinder 5 are hinged to the personnel platform 4 and the front support 3 respectively, and are used to adjust the lifting of the personnel platform 4; the front drill arm telescopic assembly is connected to the fixed frame 1, the swing cylinder I6 is fixed to the top of the front drill arm telescopic assembly, and the top drilling device 7 is installed above the swing cylinder I6; the front drill arm telescopic assembly drives the top drilling device 7 to move left and right, and the swing cylinder I6 drives the top drilling device 7 to rotate left and right, and the two cooperate to realize the operation of top plate anchor bolts and anchor cable holes with different width ranges. In use, the slide rail assembly provides basic support for the overall mechanism to slide back and forth; the lifting cylinder 2 transmits driving force through the hinge points at both ends, and when it extends or retracts, it drives the fixed frame 1 to rotate around the hinge point with the slide rail assembly, thereby realizing the overall lifting and lowering of the front drilling arm; the support adjustment cylinder 5 synchronously adjusts the height of the standing platform 4 to facilitate personnel operation; the front drilling arm extension assembly changes the left and right horizontal position of the top drilling device 7 through the extension and retraction action, and the swing cylinder I6 drives the top drilling device 7 to rotate left and right around the vertical axis. The two work together to expand the working coverage width and meet the construction needs of anchor bolts and anchor cable holes in roofs of different widths.

[0029] The top drilling device 7 includes a rotary fixed base 18, an adjustment cylinder 19, a drilling rig fixing assembly, an adjustment cylinder 20, and a front-mounted anchor drilling rig 21. The rotary fixed base 18 is fixed above the swing cylinder I6. One end of the adjustment cylinder 19 is connected to the rotary fixed base 18, and the other end is connected to the drilling rig fixing assembly. The drilling rig fixing assembly is connected to the front-mounted anchor drilling rig 21 and is used to fix the front-mounted anchor drilling rig 21. The two ends of the adjustment cylinder 20 are respectively hinged to the rotary fixed base 18 and the drilling rig fixing assembly. The rotary mounting base 18 provides a fixed foundation for the top drilling device 7 and also provides installation support for the eccentricity adjustment cylinder 19 and the adjustment cylinder 20. The drilling rig fixing assembly stably fixes the front-mounted anchor drilling rig 21 to prevent displacement during drilling. The eccentricity adjustment cylinder 19 drives the drilling rig fixing assembly and the front-mounted anchor drilling rig 21 to move slightly left and right through its extension and retraction action, thereby achieving horizontal correction of the drilling orientation. The adjustment cylinder 20 drives the drilling rig fixing assembly and the front-mounted anchor drilling rig 21 to swing back and forth through the hinge points at both ends, changing the drilling inclination angle. The two work together to achieve precise adjustment of drilling parameters.

[0030] The drilling rig fixing assembly includes at least two sets of drilling rig fixing seats 22 and drilling rig connecting plates 23; the drilling rig connecting plates 23 are installed on the base plate of the front-mounted anchor drilling rig 21, and the drilling rig fixing seats 22 are arranged symmetrically on the left and right sides; the overlapping part of the front-mounted anchor drilling rig 21 and the drilling rig connecting plates 23 are embedded in one end of the opening groove of the drilling rig fixing seat 22 and fixedly connected; one end of the cylinder body of the adjustment cylinder 19 is fixed above the U-shaped groove of the rotary fixing seat 18, and one end of the telescopic rod of the adjustment cylinder 19 is fixedly connected to one end of the cylinder of one set of the drilling rig fixing seats 22, and one end of the cylinder of the other set of the drilling rig fixing seats 22 is fixed at the circular hole at the symmetrical position of the U-shaped groove of the rotary fixing seat 18. The drilling rig connecting plate 23 is fixed to the base plate of the front-mounted anchor drilling rig 21 to form a unified force-bearing unit; the two drilling rig fixing seats 22 are engaged with the overlapping parts of the front-mounted anchor drilling rig 21 and the drilling rig connecting plate 23 through the opening slots to ensure the stable installation of the front-mounted anchor drilling rig 21; the cylinder body of the adjustment cylinder 19 is fixed to the rotary fixing seat 18, and the telescopic rod is connected to one of the drilling rig fixing seats 22. When telescopic, the front-mounted anchor drilling rig 21 is driven by the drilling rig fixing seat 22 to swing slightly left and right around the cylindrical end of the other drilling rig fixing seat 22 to achieve precise micro-adjustment of the drilling orientation and ensure the drilling position accuracy.

[0031] When the adjustment cylinder 19 extends or retracts, it causes the front-mounted anchor drilling rig 21 to swing slightly left and right to precisely adjust the drilling position; one end of the cylinder body of the adjustment cylinder 20 is hinged to the connecting lug above the rotary fixed seat 18, and one end of the extension rod of the adjustment cylinder 20 is hinged to the connecting lug on the drilling rig connecting plate 23. When the adjustment cylinder 20 extends or retracts, it causes the front-mounted anchor drilling rig 21 to swing back and forth to adapt to the drilling requirements of different inclination angles. The eccentricity adjustment cylinder 19 directly transmits lateral driving force through its extension and retraction, causing the front-mounted anchor drilling rig 21 to swing slightly left and right. This corrects the horizontal deviation of the borehole, ensuring that the borehole position is consistent with the design position. The adjustment cylinder 20, through the hinge relationship between the cylinder body and the rotary fixed seat 18, and the extension rod and the drilling rig connecting plate 23, causes the drilling rig connecting plate 23 and the front-mounted anchor drilling rig 21 to swing back and forth around the hinge point during extension and retraction. This changes the angle between the drilling axis of the front-mounted anchor drilling rig 21 and the horizontal plane, thereby meeting the drilling operation requirements of different inclination angles (such as horizontal, inclined, and vertical) and improving the operational adaptability of the device.

[0032] The front drilling arm mechanism of this integrated tunneling and anchoring machine achieves precise forward and backward sliding of the entire front drilling arm through a slide rail assembly. The sliding cylinder 10 drives the inner sleeve 9 of the slide rail to move smoothly along the slide rail base 8, which can flexibly adapt to different working distances. The lifting cylinder 2 drives the fixed frame 1 to lift and lower through symmetrically arranged double cylinders, ensuring stable operation of the front drilling arm at different roadway heights. The front drilling arm telescopic assembly and the swing cylinder I6 work together. The former drives the top drilling device 7 to move left and right to expand the lateral range, and the latter drives the top drilling device 7 to rotate left and right to adjust the working angle. The combination of the three enables the front drilling arm to cover working areas of different widths, heights and distances without the need for frequent adjustments to the overall machine position, thus improving work efficiency. Furthermore, the front support 3 optimizes the support effect through the collaborative operation of multiple components: the support sleeve assembly achieves precise lifting and lowering of the support frame 13 under the drive of the support cylinder, ensuring that the support frame 13 is in close contact with the roof height; the swing cylinder II 12 drives the support frame 13 to rotate back and forth, which can adjust the fit according to the roof tilt angle and eliminate support gaps; the support telescopic assembly drives the support telescopic sleeve 16 to extend outward through the support telescopic cylinder 17, which greatly expands the support area and improves the support coverage when working in wide tunnels; the support adjustment cylinder 5 synchronously adjusts the height of the personnel platform 4; the personnel platform 4 has a built-in rotatable side plate, which can expand the standing area of ​​the operator, avoid operational errors caused by space constraints, and further improve the safety of operation. Meanwhile, the top drilling device 7 achieves high-precision adjustment through the coordinated operation of two hydraulic cylinders: the eccentricity adjustment cylinder 19 drives the drilling rig fixing assembly to cause the front-mounted anchor bolt drilling rig 21 to swing slightly left and right, which can accurately correct the horizontal drilling orientation deviation; the adjustment cylinder 20 drives the drilling rig connecting plate 23 through the hinge point to cause the front-mounted anchor bolt drilling rig 21 to swing back and forth, which can flexibly adapt to the drilling requirements of different inclination angles. Whether it is a horizontal anchor bolt hole or a vertical anchor cable hole, it can achieve precise positioning. The drilling rig fixing assembly is fixed by the combination of the double drilling rig fixing seat 22 and the drilling rig connecting plate 23, ensuring that the front-mounted anchor bolt drilling rig 21 has no displacement during the adjustment process, further ensuring drilling accuracy, improving the drilling qualification rate, and meeting the mechanical performance requirements of anchor bolt support.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A front drilling arm mechanism for a tunneling and anchoring integrated machine, comprising a slide rail assembly, a fixing frame (1), a lifting cylinder (2), a front support (3), a personnel platform (4), a support adjustment cylinder (5), a front drilling arm telescopic assembly, a swing cylinder I (6), and a top drilling device (7); characterized in that: The slide rail assembly provides a sliding base for the front drilling arm. The fixed frame (1) is hinged to the front end of the slide rail assembly. The two ends of the lifting cylinder (2) are respectively hinged to the slide rail assembly and the fixed frame (1) to drive the fixed frame (1) to lift the front drilling arm as a whole or lower it. The front support (3) is installed on the top of the fixed frame (1). The standing platform (4) is hinged to the rear surface of the fixed frame (1). The two ends of the support adjustment cylinder (5) are hinged to the manned platform (4) and the front support (3) respectively, and are used to adjust the lifting of the manned platform (4); the front drill arm telescopic assembly is connected to the fixed frame (1), the swing cylinder I (6) is fixed to the top of the front drill arm telescopic assembly, and the top drilling device (7) is installed above the swing cylinder I (6); the front drill arm telescopic assembly drives the top drilling device (7) to move left and right, and the swing cylinder I (6) drives the top drilling device (7) to rotate left and right. The two work together to achieve the operation of top plate anchor bolts and anchor cable holes with different width ranges.

2. The front drilling arm mechanism of the tunneling and anchoring integrated machine according to claim 1, characterized in that: The front drilling arm telescopic assembly includes a front drilling arm telescopic cylinder (24) and a front drilling arm inner sleeve (25). The front drilling arm telescopic cylinder (24) is located at both ends inside the fixed frame (1), and the output end of the front drilling arm telescopic cylinder (24) is connected to the front drilling arm inner sleeve (25). The swing cylinder I (6) is located on the front drilling arm inner sleeve (25).

3. The front drilling arm mechanism of the tunneling and anchoring integrated machine according to claim 1, characterized in that: The slide rail assembly includes at least two sets of slide rail bases (8), at least two sets of slide rail inner sleeves (9), and two sets of two sliding cylinders (10); the slide rail bases (8) are symmetrically installed on both sides of the lifting arm of the tunneling and anchoring machine, and the slide rail inner sleeves (9) are nested inside the slide rail bases (8); one end of the cylinder body of the sliding cylinder (10) is hinged to the connecting lug at the rear end of the slide rail base (8), and one end of the telescopic rod of the sliding cylinder (10) is hinged to the connecting lug at the front end of the slide rail inner sleeve (9). When the sliding cylinder (10) extends and retracts, it drives the slide rail inner sleeve (9) to slide back and forth along the slide rail grooves on both sides of the slide rail base (8); the connecting lugs on the left and right sides of the rear end of the fixing frame (1) are respectively hinged to the front ends of the two sets of slide rail inner sleeves (9).

4. The front drilling arm mechanism of the tunneling and anchoring integrated machine according to claim 1, characterized in that: The lifting cylinder (2) is provided in at least two sets and is arranged symmetrically on the left and right. One end of the cylinder body of the lifting cylinder (2) is hinged to the connecting lug above the tail end of the inner sleeve (9) of the slide rail. One end of the telescopic rod of the lifting cylinder (2) is hinged to the connecting lug in the middle of the fixed frame (1).

5. The front drilling arm mechanism of the tunneling and anchoring integrated machine according to claim 1, characterized in that: The standing platform (4) is equipped with a side plate that can rotate outward, and the side plate is used to increase the standing area of ​​the operator so that the operator can perform operations such as changing drill rods and installing anchoring agent.

6. The front drilling arm mechanism of the tunneling and anchoring integrated machine according to claim 1, characterized in that: The front support (3) includes a support sleeve assembly, a top beam connecting seat (11), a swing cylinder II (12), a support frame (13), and a support telescopic assembly; the support sleeve assembly is installed on the top of the fixed frame (1), and the top beam connecting seat (11) is hinged to the top of the support sleeve assembly; the swing cylinder II (12) is installed above the top beam connecting seat (11), and the bottom of the support frame (13) is connected to the swing cylinder II (12); the support telescopic assembly is connected to both sides of the support frame (13), the support sleeve assembly drives the support frame (13) to rise and fall, the swing cylinder II (12) drives the support frame (13) to rotate back and forth, and the support telescopic assembly drives itself to extend and retract to adjust the support area.

7. The front drilling arm mechanism of a tunneling and anchoring integrated machine according to claim 6, characterized in that: The support sleeve assembly includes an outer support sleeve (14), an inner support sleeve (15), and a support cylinder; the outer support sleeve (14) is installed at the top center of the fixed frame (1), and the inner support sleeve (15) is nested inside the outer support sleeve (14); one end of the cylinder body of the support cylinder is hinged to the connecting block inside the outer support sleeve (14), and one end of the telescopic rod of the support cylinder is hinged to the connecting block inside the inner support sleeve (15), and when the support cylinder extends or retracts, it pushes the inner support sleeve (15) to rise and fall along the outer support sleeve (14).

8. The front drilling arm mechanism of a tunneling and anchoring integrated machine according to claim 7, characterized in that: The support telescopic assembly includes at least two sets of support telescopic sleeves (16) and at least two sets of support telescopic cylinders (17); one end of the square tube of the support telescopic sleeve (16) is placed in the square tubes on the left and right sides of the support frame (13), and the support telescopic cylinder (17) is placed inside the support telescopic sleeve (16); one end of the cylinder body of the support telescopic cylinder (17) is hinged to the connecting block inside the square tube of the support frame (13), and one end of the telescopic rod of the support telescopic cylinder (17) is hinged to the connecting block inside the support telescopic sleeve (16). When the support telescopic cylinder (17) extends or retracts, it pushes the support telescopic sleeve (16) to extend outward or retract inward along the square tube of the support frame (13).

9. The front drilling arm mechanism of a tunneling and anchoring integrated machine according to claim 1, characterized in that: The top drilling device (7) includes a rotary fixed seat (18), an adjustment cylinder (19), a drilling rig fixing assembly, an adjustment cylinder (20), and a front-mounted anchor drilling rig (21). The rotary fixed seat (18) is fixed above the swing cylinder I (6). One end of the adjustment cylinder (19) is connected to the rotary fixed seat (18), and the other end is connected to the drilling rig fixing assembly. The drilling rig fixing assembly is connected to the front-mounted anchor drilling rig (21) and is used to fix the front-mounted anchor drilling rig (21). The two ends of the adjustment cylinder (20) are respectively hinged to the rotary fixed seat (18) and the drilling rig fixing assembly.

10. The front drilling arm mechanism of a tunneling and anchoring integrated machine according to claim 9, characterized in that: The drilling rig fixing assembly includes at least two sets of drilling rig fixing seats (22) and a drilling rig connecting plate (23); the drilling rig connecting plate (23) is installed on the base plate of the front-mounted anchor drilling rig (21), and the drilling rig fixing seats (22) are arranged symmetrically on the left and right; the overlapping part of the front-mounted anchor drilling rig (21) and the drilling rig connecting plate (23) is embedded in one end of the opening groove of the drilling rig fixing seat (22) and fixedly connected; one end of the cylinder body of the adjustment cylinder (19) is fixed above the U-shaped groove of the rotary fixing seat (18), and one end of the telescopic rod of the adjustment cylinder (19) is connected to one end of the cylinder of one set of the drilling rig fixing seats (22). The cylindrical end of the other set of drilling rig fixing bases (22) is fixed to the circular hole at the symmetrical position of the U-shaped groove of the rotary fixing base (18); when the adjustment cylinder (19) extends and retracts, it drives the front machine-mounted anchor drilling rig (21) to swing slightly left and right to accurately adjust the drilling position; one end of the cylinder body of the adjustment cylinder (20) is hinged to the connecting lug above the rotary fixing base (18), and one end of the extension rod of the adjustment cylinder (20) is hinged to the connecting lug on the drilling rig connecting plate (23). When the adjustment cylinder (20) extends and retracts, it drives the front machine-mounted anchor drilling rig (21) to swing back and forth to adapt to the drilling requirements of different inclination angles.

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