Turnover type sliding anchor drilling platform

Abstract

The utility model relates to the technical field of coal mine tunnel supporting, in particular to a turnover type sliding anchor drilling platform which comprises a lower layer fixing platform assembly and an upper layer sliding platform assembly. The upper-layer sliding platform assembly comprises a left anchor drill platform and a right anchor drill platform. The left anchor drilling platform and the right anchor drilling platform are each provided with two sets of top anchor devices and one set of side anchor devices. Small-angle adjustment of the upper-layer top anchor device in the front-back direction and the left-right direction is achieved, meanwhile, the upper-layer top anchor device can rotate forwards by 90 degrees to achieve large-angle adjustment, and the top anchor device is located in a top-free area at the upper end of the cutting part. The upper-layer side anchor device supports the side wall and can adapt to different row pitch construction, the anchor rod supporting construction range and angle are guaranteed, and multi-degree-of-freedom, multi-angle and wide-range flexible and efficient supporting operation suitable for low roadways and small empty top distance complex geological conditions is achieved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine roadway support technology, specifically to a flip-type sliding anchor drilling platform. Background Technology

[0002] Integrated tunneling and anchoring rapid tunneling technology represents the current international advanced level in the field of coal roadway tunneling. Through its technical features such as parallel tunneling, support, breaking, and hauling operations, and full-width cutting, it significantly improves tunneling efficiency and safety performance. my country has successfully developed this technology system applicable to stable and moderately stable surrounding rock conditions.

[0003] However, in soft rock conditions such as "three-soft" strata (soft floor, soft roof, and soft sidewalls), this technology faces severe challenges: excessive gaps between the roof and sidewalls can easily induce large-scale spalling or even roof collapse accidents. Currently, the two core technologies for such complex conditions—instantaneous support with small gaps between the roof and sidewalls and stability control of the roadway—have not yet achieved complete breakthroughs. Especially for low-lying roadways, the spatial constraints and technical difficulties of support operations are further increased, placing higher demands on support techniques.

[0004] The core challenge in the current support process lies in the fact that anchor bolt support needs to be implemented across the entire width of the tunnel face. However, the existing fixed drilling rig installation structure has significant defects: it cannot flexibly cover any position in the tunnel width direction, resulting in support blind spots and hindering timely support; fixed drilling rigs are difficult to effectively push to the front end of the tunnel face, leading to delayed support; especially in the narrow space of low tunnels, drilling rig placement is difficult, anchor bolt support operation is inconvenient, and the existing structure cannot fully support the drilling rig upwards to the roof, greatly limiting the support efficiency.

[0005] In summary, existing fixed drilling rig structures generally suffer from insufficient degrees of freedom and limited adaptability, specifically manifested in: limited space for rig layout, blind spots in support, and inconvenience in anchor bolt support operation. Their operational capacity is severely inadequate, especially in low-lying tunnels, small gaps between the roof and soft surrounding rock. Therefore, there is an urgent need to develop a new type of reversible sliding anchor drilling platform to overcome existing technological bottlenecks. Summary of the Invention

[0006] To address the limitations of existing fixed drilling rig structures, such as insufficient freedom and limited adaptability (specifically, restricted drilling rig layout space, support blind spots, and inconvenient anchor bolt support operations), and their severely inadequate operational capacity, especially in low-lying tunnels, small gaps between openings, and weak surrounding rock conditions, this invention proposes a reversible sliding anchor drilling platform. This platform enables flexible and efficient support operations with multiple degrees of freedom, multiple angles, and a wide range, suitable for complex geological conditions with low-lying tunnels and small gaps between openings.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A reversible sliding anchor drilling platform includes a lower fixed platform assembly and an upper sliding platform assembly. The lower fixed platform assembly includes a left anchor support fixed platform and a right anchor support fixed platform, and the upper sliding platform assembly includes a left anchor drilling platform and a right anchor drilling platform. Each of the left and right anchor drilling platforms is equipped with two sets of top anchor devices and one set of side anchor devices. The upper top anchor devices can be adjusted at small angles in the front-back and left-right directions, and can also be rotated forward 90° to achieve a large angle adjustment, positioning the top anchor devices in the upper open area of ​​the cut section. The upper side anchor devices provide side support, adapting to different row spacings and ensuring the anchor support construction range and angle.

[0009] Furthermore, the left anchoring platform and the left anchor drilling platform, as well as the right anchoring platform and the right anchor drilling platform, are connected by propulsion cylinders. The extension and retraction of these propulsion cylinders drive the entire upper sliding platform assembly to slide along the tunneling direction.

[0010] Furthermore, the top anchor device includes a top anchor drill fixed to the top anchor connecting frame, a rotary swing cylinder that drives the top anchor connecting frame to rotate, and a front-to-back swing cylinder and a left-to-right swing cylinder that adjust the angle of the top anchor drill.

[0011] Furthermore, the top anchor connecting frame is connected to the left and right anchor fixing platforms respectively via the rotary swing cylinder, and the two ends of the front-to-back swing cylinder and the left-to-right swing cylinder are respectively hinged to the top anchor drilling rig. The top anchor device achieves small-angle adjustment of the top anchor drilling rig in the front-to-back and left-to-right directions through the extension and retraction of the front-to-back swing cylinder and the left-to-right swing cylinder. At the same time, the rotary swing cylinder can rotate forward 90° to achieve large-angle adjustment, so that the top anchor drilling rig is located in the empty roof area at the upper end of the cutting section, which meets the requirements of anchor bolt and anchor cable support with small empty roof distance from the roof plate, minimizes the distance from the face, and realizes rapid tunneling support with small empty roof distance in roadways with complex geological conditions.

[0012] Furthermore, the anchoring device includes an anchoring connecting frame, an anchoring drill carriage driven by a lifting cylinder, a lifting mechanism, and a rotary drive mechanism for supporting the anchoring drill.

[0013] Furthermore, the lifting mechanism includes a lifting cylinder, which is limited to the slide of the anchor drilling machine by a clamping plate, and a chain is provided at the end of the piston rod of the lifting cylinder.

[0014] Furthermore, the lifting cylinder is connected to the side anchor connecting frame, and its other end is hinged to the side anchor drilling machine slide. A rotary drive seat is slidably mounted on the guide column of the side anchor drilling machine slide. The rotary drive mechanism is fixedly connected to the rotary drive seat, and the rotary drive seat is fixedly connected to the chain mounted on the lifting cylinder. The side anchor drilling machine is connected to the output end of the rotary drive mechanism. In the side anchor device, the side anchor drilling machine rotates under the rotation of the rotary drive mechanism. The extension and retraction of the lifting cylinder can drive the side anchor drilling machine slide, the lifting cylinder, the rotary drive mechanism, the rotary drive seat, and the entire side anchor drilling machine to make a wide range of adjustments on the track. The side anchor drilling machine adopts a lifting mechanism, which drives the rotary drive mechanism to rotate and the entire side anchor drilling machine to rise and fall through the chain arranged on the lifting cylinder. The rotary drive mechanism drives the side anchor drilling machine to swing up and down, realizing the side support, adapting to different row spacing construction, and ensuring the construction range and angle of the anchor bolt support.

[0015] Furthermore, both the left and right anchor drilling platforms are equipped with control panels. Operating buttons are integrated into the control panels for convenient control.

[0016] The beneficial effects of this utility model through the above technical solution are as follows:

[0017] The reversible sliding anchor drilling platform provided by this utility model allows for small-angle adjustments of the top anchor drilling machine in the front-back and left-right directions through the extension and retraction of the front-back and left-right swing cylinders. Simultaneously, the rotary swing cylinder can rotate forward 90° for large-angle adjustments, positioning the top anchor drilling machine in the upper open-top area of ​​the cutting section. This ensures support for anchor bolts and cables with minimal distance from the top plate, minimizing the distance to the facing section. Meanwhile, the side anchor drilling machine in the auxiliary anchoring device rotates under the rotation of the rotary drive mechanism. The extension and retraction of the lifting cylinder allows for a wide range of adjustments of the auxiliary anchor drilling machine slide, lifting cylinder, rotary drive mechanism, rotary drive base, and the entire auxiliary anchor drilling machine on the track. The system employs a lifting mechanism, where chains mounted on lifting cylinders drive the slewing drive mechanism, slewing drive, and the entire side anchor drilling rig. The slewing drive mechanism causes the side anchor drilling rig to swing up and down, achieving side support. This adapts to different row spacings and ensures the range and angle of anchor bolt support. Compared with existing technologies, this system overcomes the challenges of fixed drilling rig installation in low-lying tunnels, where narrow drilling space, difficult anchor bolt support, poor operator safety, and the inability of the drilling rig to fully utilize its advantages result in limited support that cannot reach the roof. This system enables flexible and efficient support operations with multiple degrees of freedom, multiple angles, and a wide range, suitable for low-lying tunnels, small gaps between roof and rock, and complex geological conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a reversible sliding anchor drilling platform according to the present invention;

[0019] Figure 2This is a schematic diagram of the propulsion cylinder in a reversible sliding anchor drilling platform according to the present invention;

[0020] Figure 3 This is a schematic diagram of the top anchor device in a reversible sliding anchor drilling platform according to the present invention;

[0021] Figure 4 This is a schematic diagram of the auxiliary anchor device in a flip-type sliding anchor drilling platform according to the present invention.

[0022] The numbers in the attached diagram are:

[0023] 101. Left anchor fixing platform; 102. Left anchor drilling platform; 103. Right anchor drilling platform; 104. Top anchor drilling machine; 105. Side anchor drilling machine; 106. Top anchor connecting frame; 107. Side anchor connecting frame; 108. Rotary cylinder; 109. Pushing cylinder; 110. Forward and backward swing cylinder; 111. Left and right swing cylinder; 112. Side anchor drilling machine slide; 113. Lifting cylinder; 114. Rotary drive mechanism; 115. Rotary drive seat; 116. Lifting cylinder; 117. Operating platform; 118. Right anchor fixing platform. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0025] like Figures 1-4 As shown, this embodiment provides a reversible sliding anchor drilling platform, including a lower fixed platform assembly and an upper sliding platform assembly. The lower fixed platform assembly includes a left anchor fixing platform 101 and a right anchor fixing platform 118, and the upper sliding platform assembly includes a left anchor drilling platform 102 and a right anchor drilling platform 103. Both the left anchor drilling platform 102 and the right anchor drilling platform 103 are equipped with two sets of top anchor devices and one set of side anchor devices.

[0026] This utility model provides a flip-type sliding anchor drilling platform, which is divided into upper and lower layers. The upper top anchor device can be adjusted at small angles in the front-back and left-right directions, and can also be rotated forward 90° to achieve large angle adjustment, so that the top anchor device is located in the upper open area of ​​the cutting section; the upper side anchor device provides side support, which can adapt to different row spacing construction and ensure the construction range and angle of anchor bolt support.

[0027] In this embodiment, the left anchoring platform 101 and the left anchor drilling platform 102, and the right anchoring platform 118 and the right anchor drilling platform 103 are connected by a propulsion cylinder 109. The propulsion cylinder 109 extends and retracts to drive the upper sliding platform assembly to slide along the tunneling direction, causing the top anchor device and the side anchor device to move forward to the upper roof area of ​​the cutting section.

[0028] Please refer to this again. Figure 3The top anchor device includes a top anchor drill 104 fixed to the top anchor connecting frame 106, a rotary swing cylinder 108 that drives the top anchor connecting frame 106 to rotate, and a front-to-back swing cylinder 110 and a left-to-right swing cylinder 111 that adjust the angle of the top anchor drill 104.

[0029] Furthermore, the top anchor connecting frame 106 is connected to the left anchor fixing platform 101 and the right anchor fixing platform 118 respectively through the rotary swing cylinder 108, and the front and rear swing cylinder 110 and the left and right swing cylinder 111 are respectively hinged to the top anchor drilling machine 104.

[0030] The top anchoring device enables the top anchoring drill 104 to achieve small-angle adjustments in the front-back and left-right directions through the extension and retraction of the front-back swing cylinder 110 and the left-right swing cylinder 111. At the same time, the rotary swing cylinder 108 can rotate forward 90° to achieve large-angle adjustments, so that the top anchoring drill 104 is located in the empty roof area at the upper end of the cutting section, which meets the requirements of anchor bolt and anchor cable support with small empty roof distance from the roof plate, minimizes the distance from the face, realizes rapid tunneling support with small empty roof distance in roadways with complex geological conditions, and ensures construction safety.

[0031] Please refer to this again. Figure 4 The anchoring device includes an anchoring connection frame 107, an anchoring drill slide 112 driven by a lifting cylinder 116, a lifting mechanism, and a rotary drive mechanism 114 for carrying the anchoring drill 105.

[0032] Specifically, the lifting mechanism includes a lifting cylinder 113, which is limited to the slide 112 of the anchor drilling machine by a clamping plate, and a chain is provided at the end of the piston rod of the lifting cylinder 113.

[0033] In this embodiment, the lifting cylinder 116 is connected to the anchor support frame 107, and its other end is hinged to the anchor support drilling machine slide 112; a rotary drive seat 115 is slidably arranged on the guide column of the anchor support drilling machine slide 112, the rotary drive mechanism 114 is fixedly connected to the rotary drive seat 115, the rotary drive seat 115 is fixedly connected to the chain arranged on the lifting cylinder 113, and the anchor support drilling machine 105 is connected to the output end of the rotary drive mechanism 114.

[0034] In the side anchoring device, the side anchoring drill 105 rotates under the rotation of the rotary drive mechanism 114. The extension and retraction of the lifting cylinder 116 can drive the side anchoring drill slide 112, the lifting cylinder 113, the rotary drive mechanism 114, the rotary drive seat 115, and the side anchoring drill 105 as a whole to make large-scale adjustments on the track. The side anchoring drill 105 adopts a lifting mechanism. The chain arranged on the lifting cylinder 113 drives the rotary drive mechanism 114, the rotary drive 115, and the side anchoring drill 105 to lift and lower as a whole. The rotary drive mechanism 114 drives the side anchoring drill 105 to swing up and down, realize the side support, adapt to different row spacing construction, ensure the range and angle of anchor bolt support construction, and thus meet the support requirements of low roadways and weak and broken surrounding rock.

[0035] It is worth mentioning that the left anchor drilling platform 102 and the right anchor drilling platform 103 are also equipped with an operating console 117. The operating buttons are integrated on the operating console 117 for convenient control.

[0036] The working principle of this utility model is as follows:

[0037] The top anchoring device achieves small-angle adjustments to the top anchoring drill 104 in the front-back and left-right directions through the extension and retraction of the front-back swing cylinder 110 and the left-right swing cylinder 111. Simultaneously, the rotary swing cylinder 108 can rotate forward 90° to achieve large-angle adjustments, positioning the top anchoring drill 104 in the upper open-top area of ​​the cutting section. This satisfies the requirement for anchor bolt and cable support with a small open-top distance from the top plate, minimizing the distance to the facing section. Meanwhile, the side anchoring drill 105 in the side anchoring device rotates under the rotation of the rotary drive mechanism 114, and the extension and retraction of the lifting cylinder 116 can drive the side anchoring drill... The machine slide 112, the lifting cylinder 113, the rotary drive mechanism 114, the rotary drive base 115, and the side anchor drilling machine 105 are adjusted over a wide range on the track. The side anchor drilling machine 105 adopts a lifting mechanism, which drives the rotary drive mechanism 114, the rotary drive 115, and the side anchor drilling machine 105 to rise and fall as a whole through the chain arranged on the lifting cylinder 113. The rotary drive mechanism 114 drives the side anchor drilling machine 105 to swing up and down, thereby achieving side support, adapting to different row spacing construction, and ensuring the construction range and angle of the anchor bolt support.

[0038] In summary, the reversible sliding anchor drilling platform provided by this utility model overcomes the difficulties of fixed drilling rig installation in low-lying tunnels, such as narrow drilling rig space, difficulty in anchor bolt support, poor personnel operation safety, and the inability of the drilling rig to fully utilize its advantages, resulting in limited support that cannot reach the roof. It enables flexible and efficient support operations with multiple degrees of freedom, multiple angles, and a wide range, suitable for low-lying tunnels and complex geological conditions with small gaps between the roof and the ground.

[0039] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A reversible sliding anchor drilling platform, characterized in that, The system includes a lower fixed platform assembly and an upper sliding platform assembly. The lower fixed platform assembly includes a left anchorage fixed platform (101) and a right anchorage fixed platform (118). The upper sliding platform assembly includes a left anchorage drilling platform (102) and a right anchorage drilling platform (103). Both the left anchorage drilling platform (102) and the right anchorage drilling platform (103) are equipped with two sets of top anchor devices and one set of side anchor devices.

2. The reversible sliding anchor drilling platform according to claim 1, characterized in that, The left anchor fixing platform (101) and the left anchor drilling platform (102), and the right anchor fixing platform (118) and the right anchor drilling platform (103) are connected by a propulsion cylinder (109).

3. The reversible sliding anchor drilling platform according to claim 1, characterized in that, The top anchor device includes a top anchor drill (104) fixed to the top anchor connecting frame (106), a rotary swing cylinder (108) that drives the top anchor connecting frame (106) to rotate, and a front-to-back swing cylinder (110) and a left-to-right swing cylinder (111) that adjust the angle of the top anchor drill (104).

4. The reversible sliding anchor drilling platform according to claim 3, characterized in that, The top anchor connecting frame (106) is connected to the left anchor fixing platform (101) and the right anchor fixing platform (118) respectively through the rotary swing cylinder (108), and the front and rear swing cylinder (110) and the left and right swing cylinder (111) are respectively hinged to the top anchor drilling machine (104).

5. A reversible sliding anchor drilling platform according to claim 1, characterized in that, The anchoring device includes an anchoring connection frame (107), an anchoring drill slide (112) driven by a lifting cylinder (116), a lifting mechanism, and a rotary drive mechanism (114) for carrying the anchoring drill (105).

6. A reversible sliding anchor drilling platform according to claim 5, characterized in that, The lifting mechanism includes a lifting cylinder (113), which is limited by a clamping plate to the slide of the anchor drilling machine (112). A chain is provided at the end of the piston rod of the lifting cylinder (113).

7. A reversible sliding anchor drilling platform according to claim 6, characterized in that, The lifting cylinder (116) is connected to the anchor connection frame (107), and its other end is hinged to the anchor drilling machine slide (112); a rotary drive seat (115) is slidably arranged on the guide column of the anchor drilling machine slide (112), and the rotary drive mechanism (114) is fixedly connected to the rotary drive seat (115). The rotary drive seat (115) is fixedly connected to the chain arranged on the lifting cylinder (113), and the anchor drilling machine (105) is connected to the output end of the rotary drive mechanism (114).

8. A reversible sliding anchor drilling platform according to claim 1, characterized in that, An operating platform (117) is also provided on the left anchor drilling platform (102) and the right anchor drilling platform (103).

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