Spraying and drilling and anchoring combined small empty roof supporting quick-digging equipment

Abstract

The invention provides spraying and drilling and anchoring combined small empty roof supporting quick-digging equipment which comprises a frame, a sliding assembly and a swinging assembly, and a fixed platform is arranged on the frame; the sliding assembly comprises a first-stage sliding rail, a second-stage sliding rail and a sliding seat, the first-stage sliding rail is arranged on the fixed platform, the second-stage sliding rail is arranged on the first-stage sliding rail in a sliding mode, the sliding seat is arranged on the second-stage sliding rail in a sliding mode, and the straight line where the sliding direction of the sliding seat is located is parallel to the straight line where the sliding direction of the second-stage sliding rail is located; the swing assembly comprises a supporting rod and two connecting joints, the two connecting joints are arranged at the two ends of the supporting rod respectively, the connecting joints are at least provided with a first rotating shaft and a second rotating shaft, the rotating axis of the first rotating shaft is perpendicular to the rotating axis of the second rotating shaft, and the swing assembly drives the spraying and drilling anchor assembly to swing. And spraying and anchor rod supporting are carried out in the coal mine tunnel. By means of the spraying and drilling and anchoring composite small empty roof supporting and fast digging equipment, the empty roof distance can be reduced, and effective supporting of an empty roof area is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine excavation equipment, and in particular to a spraying and drilling-anchoring composite small-cavity top support fast excavation equipment. Background Art

[0002] In coal mining operations, the distance between the cutting drum and the anchor drill arm of the excavator is called the empty top distance, which is generally more than 2.5m, resulting in the area between the cutting drum and the drill arm becoming an empty top area without anchor cable support. This empty top area is often in an unsupported state during the excavation process and is directly exposed to the roof pressure. Especially for soft and easily broken surrounding rocks, their self-stabilizing ability is poor. In the absence of effective support, the roof is very likely to deform, and there is even a risk of the roof falling. Summary of the invention

[0003] The present invention aims to solve at least one of the above technical problems to a certain extent. To this end, the embodiment of the present invention proposes a spraying and drilling and anchoring composite small empty top support fast excavation equipment, which can reduce the empty top distance, realize effective support of the empty top area, and improve the safety and efficiency of the operation.

[0004] The spraying and drilling-anchoring composite small-space top support and fast excavation equipment provided by the embodiment of the present invention includes:

[0005] A vehicle frame, wherein a fixed platform is provided on the vehicle frame;

[0006] A sliding assembly, the sliding assembly comprising a primary sliding rail, a secondary sliding rail and a sliding seat, the primary sliding rail being arranged on the fixed platform, the secondary sliding rail being slidably arranged on the primary sliding rail, the sliding seat being slidably arranged on the secondary sliding rail, and the straight line where the sliding direction of the sliding seat is located is parallel to the straight line where the sliding direction of the secondary sliding rail is located;

[0007] A swing assembly, the swing assembly includes a support rod and two connecting joints, the two connecting joints are respectively arranged at both ends of the support rod, the connecting joint has at least a first rotating shaft and a second rotating shaft, the rotation axis of the first rotating shaft is perpendicular to the rotation axis of the second rotating shaft, one of the two connecting joints is connected to the sliding seat, and the other of the two connecting joints is provided with a spray drill anchor assembly, the spray drill anchor assembly includes a spray gun and a drill anchor support component, and the swing assembly drives the spray drill anchor assembly to swing so as to perform spraying and anchor support in a coal mine tunnel.

[0008] In summary, the spraying and drilling and anchoring composite small void top support quick excavation equipment provided by the present invention is based on a fixed platform, and cooperates with a sliding component and a swing component to construct a comprehensive working platform integrating spraying and drilling and anchoring functions. After the excavation is completed, the sliding component and the swing component can be used to quickly move the spray gun and the drilling and anchoring support components to the position to be supported, thereby shortening the void top distance and realizing effective support for the void top area, greatly improving the safety and efficiency of the operation.

[0009] In some embodiments, the sliding seat includes a mounting plane and a plurality of supports, wherein the plurality of supports are mutually staggered and arranged on the mounting plane, and a mounting hole is provided on the support, and the first rotating shaft or the second rotating shaft is rotatably arranged in the mounting hole.

[0010] In some embodiments, the first rotating shaft is rotatably disposed in the mounting hole, and two limit blocks are disposed on the first rotating shaft. The two limit blocks are spaced apart around the rotation axis of the first rotating shaft, and the first rotating shaft has an extreme position relative to the support. The first rotating shaft is in the extreme position when the limit blocks abut against the mounting plane.

[0011] In some embodiments, the sliding assembly further comprises a meshing rack and a gear, one of the rack and the gear is disposed on the primary slide rail or the sliding seat, and the other of the rack and the gear is disposed on the secondary slide rail.

[0012] In some embodiments, the secondary slide rail has a first sliding surface and a second sliding surface that are relatively arranged, and two of the racks and two of the gears are provided. The two gears are respectively provided on the first sliding surface of the secondary slide rail and the sliding seat, and the two racks are correspondingly provided on the second sliding surface of the secondary slide rail and the primary slide rail.

[0013] In some embodiments, the spraying direction of the spray gun is consistent with the supporting direction of the anchor rod on the drilling and anchor supporting component.

[0014] In some embodiments, the swing assembly further includes a telescopic auxiliary rod, a connecting seat is provided on the support rod, one end of the telescopic auxiliary rod is rotatably connected to the connecting seat, and the other end of the telescopic auxiliary rod is rotatably connected to the sliding seat.

[0015] In some embodiments, the connecting seat is arranged in the middle part of the support rod, the telescopic auxiliary rod includes a sleeve and a connecting rod which are socketed with each other, the connecting rod is slidably arranged in the sleeve, one of the connecting rod and the sleeve is connected to the connecting seat, and the other of the connecting rod and the sleeve is connected to the sliding seat.

[0016] In some embodiments, the spraying and drilling-anchor composite small cavity top support fast excavation equipment also includes a moving component, which is arranged at the bottom of the frame. The moving component includes a driving wheel, a guide wheel and a crawler track, and the crawler track is arranged around the driving wheel and the guide wheel.

[0017] In some embodiments, the spraying and drilling and anchoring composite small void top support quick excavation equipment also includes a cutting assembly, the cutting assembly includes a cutting drill bit, the sliding assembly, the swing assembly and the spraying drill anchor assembly are each provided with two, and the sliding assembly, the swing assembly and the spraying drill anchor assembly are respectively arranged on opposite sides of the cutting drill bit along the width direction of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a spraying and drilling-anchoring composite small cavity top support quick excavation equipment provided by an embodiment of the present invention.

[0019] Figure 2 It is a top view schematic diagram of a spraying and drilling-anchoring composite small cavity top support fast excavation equipment provided by an embodiment of the present invention.

[0020] Figure 3 It is a structural schematic diagram of a sliding assembly and a swing assembly in a spraying and drilling-anchoring composite small-cavity top support and fast excavation equipment provided by an embodiment of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the unfolded sliding assembly and swing assembly in the spraying and drilling-anchoring composite small-cavity top support and fast excavation equipment provided by one embodiment of the present invention.

[0022] Figure 5 yes Figure 3 A partial enlarged view of point A in the middle.

[0023] Figure 6 It is a schematic diagram of the operation flow of a spraying and drilling-anchoring composite small cavity top support quick excavation equipment provided by an embodiment of the present invention.

[0024] Figure 7 It is a schematic diagram of anchor installation of a spraying and drilling-anchoring composite small-void top support quick excavation equipment in an anchor support operation provided by an embodiment of the present invention.

[0025] Reference numerals:

[0026] 10. Frame; 11. Fixed platform;

[0027] 20. Sliding assembly; 21. Primary slide rail; 22. Secondary slide rail; 221. First sliding surface; 222. Second sliding surface; 23. Sliding seat; 231. Mounting plane; 232. Support; 233. Mounting hole; 24. Rack; 25. Gear;

[0028] 30. Swing assembly; 31. Support rod; 311. Connecting seat; 32. Connecting joint; 321. First rotating shaft; 322. Second rotating shaft; 323. Limiting block.

[0029] 40. Spraying drill anchor assembly; 41. Spraying gun; 42. Drill anchor support component;

[0030] 60. Mobile assembly; 61. Driving wheel; 62. Guide wheel; 63. Track;

[0031] 70. cutting assembly; 71. cutting head;

[0032] 81. surrounding rock; 82. anchor hole; 83. support material; 84. anchor rod; 841. rod section; 842. anchor section; 843. tray; 844. pre-tightening nut. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 7 As shown, an embodiment of the present invention provides a spraying and drilling and anchoring composite small empty top support fast excavation equipment, which includes a frame 10, a sliding assembly 20 and a swing assembly 30. A fixed platform 11 is provided on the frame 10. The sliding assembly 20 includes a primary slide rail 21, a secondary slide rail 22 and a sliding seat 23, the primary slide rail 21 is provided on the fixed platform 11, the secondary slide rail 22 is slidably provided on the primary slide rail 21, and the sliding seat 23 is slidably provided on the secondary slide rail 22, and the straight line where the sliding direction of the sliding seat 23 is located is parallel to the straight line where the sliding direction of the secondary slide rail 22 is located. The swing assembly 30 includes a support rod 31 and two connecting joints 32, and the two connecting joints 32 are respectively arranged at both ends of the support rod 31. The connecting joint 32 has at least a first rotating shaft 321 and a second rotating shaft 322. The first rotating shaft 321 and the second rotating shaft 322 both have a rotation axis, and the rotation axis of the first rotating shaft 321 is perpendicular to the rotation axis of the second rotating shaft 322. One of the two connecting joints 32 is connected to the sliding seat 23, and the other of the two connecting joints 32 is provided with a spray drill anchor assembly 40, and the spray drill anchor assembly 40 also includes a spray gun 41 and a drill anchor support component 42.

[0035] Among them, the sliding assembly 20 can be slidably arranged along the front-to-back direction of the frame 10 through the primary slide rail 21, the secondary slide rail 22 and the sliding seat 23, forming a three-level sliding system. The primary slide rail 21 is installed on the fixed platform 11, which can provide an initial sliding platform for the entire sliding system; the secondary slide rail 22 is slidably arranged on the primary slide rail 21, which can achieve a large range and high-precision movement in the front-to-back direction; and the sliding seat 23 is used to carry the swing assembly 30. The sliding seat 23 is also installed on the secondary slide rail 22 in a sliding manner. Its sliding direction is consistent with the secondary slide rail 22, and its position can be flexibly adjusted to accurately align with the area to be supported, thereby expanding the operating range and improving the flexibility and accuracy of the operation, so that the spraying and drilling and anchoring operations can be completed quickly and accurately.

[0036] The swing assembly 30 is composed of a support rod 31 and two connecting joints 32. At least one of the two connecting joints 32 has a first rotating shaft 321 located in the height direction (i.e., the up-down direction) of the frame 10, and at least one of the two connecting joints 32 has a first rotating shaft 321 located in the width direction (i.e., the left-right direction) of the frame 10, and at least one second rotating shaft 322 is located in the front-back direction of the frame 10, forming a free adjustment system that can be adjusted in three-dimensional space, so that the positions of the spray gun 41 and the drilling and anchoring support components can be adjusted through the first rotating shaft 321 and the second rotating shaft 322 on the connecting joint 32, so as to adapt to working areas at different positions and different heights. In addition, both ends of the support rod 31 are provided with connecting joints 32, which can increase the swing angle and adapt to a wider range of support areas.

[0037] During the use of the spraying and drilling and anchoring composite small empty top support fast excavation equipment, especially when facing soft and easily broken surrounding rock areas, the swing assembly 30 and the spraying drilling and anchoring assembly 40 can be moved to the front excavation area of ​​the frame through the sliding assembly 20, and then the swing assembly 30 is used to drive the spraying drilling and anchoring assembly 40 to swing in the up and down directions and left and right directions in the coal mine tunnel to move the spraying drilling and anchoring assembly 40 to the area to be supported, thereby reducing the empty top distance and effectively supporting the empty top area. Subsequently, the surrounding rock surface is pre-treated using a spray gun 41, such as spraying an adhesive, a waterproofing agent or a reinforcing material, to enhance the stability of the surrounding rock, reduce the risk of crushing, and create favorable conditions for subsequent anchor support operations.

[0038] Finally, the drilling and anchoring support components 42 are used to perform drilling and anchoring support operations, so that anchor rods can be installed quickly and accurately to reinforce the surrounding rock and ensure construction safety. This not only simplifies the operation process and reduces the time and cost of equipment replacement, but also significantly improves the efficiency and quality of anchor rod support, providing a strong guarantee for the safe construction of underground projects.

[0039] In summary, the spraying and drilling-anchoring composite small void top support quick excavation equipment provided by the present invention is based on a fixed platform 11, and cooperates with a sliding component 20 and a swing component 30 to construct a comprehensive working platform integrating spraying and drilling-anchoring functions. After the excavation is completed, the sliding component 20 and the swing component 30 can be used to quickly move the spray gun 41 and the drilling-anchoring support component 42 to the position to be supported, thereby shortening the void top distance and realizing effective support for the void top area, greatly improving the safety and efficiency of the operation.

[0040] In this embodiment, the spraying direction of the spray gun 41 is consistent with the support direction of the anchor rod on the drilling and anchoring support component 42, so that after the spray gun 41 completes the spraying operation, the drilling and anchoring support component 42 can quickly drill and anchor the area to improve the operation efficiency.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the fixing platform 11 can be set to a flat plate shape, and the fixing platform 11 can be fixed to the frame 10 by means of threaded connection or welding, so that it can be disassembled and assembled as needed for easy use.

[0042] Furthermore, the sliding assembly 20 further includes a rack 24 and a gear 25 meshing with each other, one of the rack 24 and the gear 25 is disposed on the primary slide rail 21 or the slide seat 23, and the other of the rack 24 and the gear 25 is disposed on the secondary slide rail 22. That is, at least one set of the rack 24 and the gear 25 is provided, and the set of the rack 24 and the gear 25 can be disposed between the slide seat 23 and the secondary slide rail 22 or between the primary slide rail 21 and the secondary slide rail 22, thereby improving the accuracy during the movement process and also improving the smoothness during the movement process.

[0043] Furthermore, the secondary slide rail 22 has a first sliding surface 221 and a second sliding surface 222 that are arranged opposite to each other, and two racks 24 and two gears 25 are provided, and the two gears 25 are respectively provided on the first sliding surface 221 of the secondary slide rail 22 and the sliding seat 23, and the two racks 24 are correspondingly provided on the second sliding surface 222 of the secondary slide rail 22 and the primary slide rail 21. In this embodiment, two groups of racks 24 and gears 25 are provided, which are respectively located between the sliding seat 23 and the secondary slide rail 22 and between the primary slide rail 21 and the secondary slide rail 22.

[0044] like Figure 3 , Figure 4 and Figure 5As shown, in some embodiments, the sliding seat 23 includes a mounting plane 231 and a plurality of supports 232. The plurality of supports 232 are staggered on the mounting plane 231. The supports 232 are provided with mounting holes 233. The first rotating shaft 321 or the second rotating shaft 322 is rotatably disposed in the mounting holes 233, thereby meeting the connection requirements of different connecting joints 32 and providing a more flexible and stable installation basis for the connecting joints 32.

[0045] Furthermore, the first rotating shaft 321 is rotatably disposed in the mounting hole 233, and two limit blocks 323 are disposed on the first rotating shaft 321. The two limit blocks 323 are spaced apart around the rotation axis of the first rotating shaft 321, and the first rotating shaft 321 has an extreme position relative to the support 232. The first rotating shaft 321 is in the extreme position when the limit blocks 323 abut against the mounting plane 231.

[0046] That is, when the first rotating shaft 321 rotates to a certain angle, the limit block 323 will abut against the mounting plane 231, and the first rotating shaft 321 has reached its limit position, thereby effectively preventing the first rotating shaft 321 from being loosened, damaged or misoperated due to excessive rotation, thereby ensuring the reliable operation of the entire spraying and drilling-anchoring composite small-space top support and fast excavation equipment. In this embodiment, the connection joint 32 can be set as a universal joint.

[0047] It should be noted that, in some embodiments, the second rotating shaft 322 may also be rotatably disposed in the mounting hole 233 , and the limiting block 323 may be correspondingly disposed on the second rotating shaft 322 .

[0048] In some embodiments, the swing assembly 30 also includes a telescopic auxiliary rod, a connecting seat 311 is provided on the support rod 31, one end of the telescopic auxiliary rod is rotatably connected to the connecting seat 311, and the other end of the telescopic auxiliary rod is rotatably connected to the sliding seat 23, so that its length and angle can be automatically adjusted according to actual conditions, providing additional supporting force for the support rod 31, thereby effectively reducing the load on the support rod 31 and improving its carrying capacity and stability.

[0049] Furthermore, the telescopic auxiliary rod includes a sleeve and a connecting rod which are sleeved with each other, the sliding rod is slidably arranged in the sleeve, one of the connecting rod and the sleeve is connected to the connecting seat 311, and the other of the connecting rod and the sleeve is connected to the sliding seat 23.

[0050] Optionally, the telescopic auxiliary rod can be configured as a component such as an oil cylinder or a screw motor.

[0051] In this embodiment, the sleeve can be connected to the support 232 on the sliding seat 23, and the connecting rod is connected to the connecting seat 311 on the support rod 31. The sleeve is the outer structure of the telescopic auxiliary rod, and its interior is designed with a sliding track or space matching the connecting rod to ensure that the connecting rod can slide smoothly inside it. The connecting rod is the inner structure of the telescopic auxiliary rod, and its outer surface is tightly fitted with the inner wall of the sleeve to ensure smooth sliding and sealing between the two.

[0052] Optionally, the connecting seat 311 is arranged in the middle of the support rod 31, which can optimize the stress state of the entire structure, so that the support rod 31 can maintain more balanced and stable mechanical properties when bearing loads from the telescopic auxiliary rod or other external loads.

[0053] like Figure 1 and Figure 2 As shown, in some embodiments, the spraying and drilling and anchoring composite small void top support fast excavation equipment also includes a moving component 60, which is arranged at the bottom of the frame 10. The moving component 60 includes a driving wheel 61, a guide wheel 62 and a crawler track 63. The crawler track 63 is arranged around the driving wheel 61 and the guide wheel 62, so that it can move in the coal mine tunnel as needed.

[0054] like Figure 1 and Figure 2 As shown, in some embodiments, the spraying and drilling and anchoring composite small empty top support and fast excavation equipment also includes a cutting assembly 70, the cutting assembly 70 includes a cutting drill bit 71, and the sliding assembly 20, the swing assembly 30 and the spraying drilling and anchoring assembly 40 are each provided with two, and the sliding assembly 20, the swing assembly 30 and the spraying drilling and anchoring assembly 40 are respectively arranged on opposite sides of the cutting drill bit along the width direction of the frame. . Among them, the sliding assembly 20, the swing assembly 30 and the spraying drilling and anchoring assembly 40 are used in conjunction with each other. That is, the sliding assembly 20, the swing assembly 30 and the spraying drilling and anchoring assembly 40 are each provided with two, and are respectively arranged on both sides of the cutting drill bit 71, so that the empty top area can be supported from both sides at the same time, which not only improves the support efficiency, but also improves the operation safety.

[0055] refer to Figure 6, which is a schematic diagram of the operation flow of the spraying and drilling and anchoring composite small-hole top support and fast excavation equipment provided by an embodiment of the present invention. The use process of the spraying and drilling and anchoring composite small-hole top support and fast excavation equipment may include the following steps: S10, controlling the cutting assembly 70 to extend, and using the cutting drill bit 71 to perform cutting operations; S20, after the cutting drill bit 71 completes the cutting operation, the spraying drill anchor assembly 40 extends through the sliding assembly 20 and the swing assembly 30 until it moves to the position to be supported; S30, the spraying drill anchor assembly 40 performs spraying operations and anchor support operations at the position to be supported in turn; S40, after the spraying drill anchor assembly 40 completes the operation, the spraying drill anchor assembly 40 is reset, and the excavation equipment can proceed to the next stage of construction.

[0056] refer to Figure 7 , which is a schematic diagram of the bolt installation of the spraying and drilling and anchoring composite small-space top support fast excavation equipment provided by an embodiment of the present invention in the bolting support operation. In the bolting support operation, after the spraying gun 41 and the drilling and anchoring support component 42 are moved to the support position through the sliding assembly 20 and the swing assembly 30, the spraying gun 41 can first spray the support material 83 onto the broken surrounding rock 81, and then drill the anchor hole 82, and fix the anchor 84 into the anchor hole 82.

[0057] The anchor rod 82 includes a rod section 841, an anchor section 842, a tray 843 and a pre-tightening nut 844. The rod section 841 and the anchor section 842 are connected, the rod section 841 and the anchor section 842 extend into the anchor hole 82, the other end of the rod section 841 passes through the tray 843 and is connected to the pre-tightening nut 844, and the rounded edge of the tray 843 is fitted on the supporting material 83.

[0058] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", "top", "bottom", "inside", "outside", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] In the present invention, the terms "one embodiment", "some embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0063] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A spraying and drilling-anchoring composite small-space top support and fast excavation equipment, characterized in that: include: A vehicle frame, wherein a fixed platform is provided on the vehicle frame; A sliding assembly, the sliding assembly comprising a primary sliding rail, a secondary sliding rail and a sliding seat, the primary sliding rail being arranged on the fixed platform, the secondary sliding rail being slidably arranged on the primary sliding rail, the sliding seat being slidably arranged on the secondary sliding rail, and the straight line where the sliding direction of the sliding seat is located is parallel to the straight line where the sliding direction of the secondary sliding rail is located; A swing assembly, the swing assembly includes a support rod and two connecting joints, the two connecting joints are respectively arranged at both ends of the support rod, the connecting joint has at least a first rotating shaft and a second rotating shaft, the rotation axis of the first rotating shaft is perpendicular to the rotation axis of the second rotating shaft, one of the two connecting joints is connected to the sliding seat, and the other of the two connecting joints is provided with a spray drill anchor assembly, the spray drill anchor assembly includes a spray gun and a drill anchor support component, and the swing assembly drives the spray drill anchor assembly to swing so as to perform spraying and anchor support in a coal mine tunnel.

2. The spraying and drilling-anchoring composite small-space top support and fast excavation equipment according to claim 1 is characterized in that: The sliding seat comprises a mounting plane and a plurality of supports, wherein the plurality of supports are mutually staggered and arranged on the mounting plane, and a mounting hole is arranged on the support, and the first rotating shaft or the second rotating shaft is rotatably arranged in the mounting hole.

3. The spraying and drilling-anchoring composite small-space top support and fast excavation equipment according to claim 2 is characterized in that: The first rotating shaft is rotatably disposed in the mounting hole, and two limit blocks are disposed on the first rotating shaft. The two limit blocks are spaced apart around the rotation axis of the first rotating shaft, and the first rotating shaft has an extreme position relative to the support. The first rotating shaft is in the extreme position when the limit blocks abut against the mounting plane.

4. The spraying and drilling-anchoring composite small-space top support and fast excavation equipment according to claim 1 is characterized in that: The sliding assembly also includes a meshing rack and a gear, one of the rack and the gear is arranged on the primary slide rail or the sliding seat, and the other of the rack and the gear is arranged on the secondary slide rail.

5. The spraying and drilling-anchoring composite small-space top support and fast excavation equipment according to claim 4 is characterized in that: The secondary slide rail has a first sliding surface and a second sliding surface that are arranged opposite to each other. The rack and the gear are each provided with two, and the two gears are respectively arranged on the first sliding surface of the secondary slide rail and the sliding seat, and the two racks are correspondingly arranged on the second sliding surface of the secondary slide rail and the primary slide rail.

6. The spraying and drilling-anchoring composite small-space top support and fast excavation equipment according to claim 1 is characterized in that: The spraying direction of the spray gun is consistent with the supporting direction of the anchor rod on the drilling and anchor supporting component.

7. The spraying and drilling-anchoring composite small-space top support and fast excavation equipment according to claim 1 is characterized in that: The swing assembly also includes a telescopic auxiliary rod, a connecting seat is provided on the support rod, one end of the telescopic auxiliary rod is rotatably connected to the connecting seat, and the other end of the telescopic auxiliary rod is rotatably connected to the sliding seat.

8. The spraying and drilling-anchoring composite small-space top support and fast excavation equipment according to claim 7 is characterized in that: The connecting seat is arranged in the middle part of the support rod, and the telescopic auxiliary rod includes a sleeve and a connecting rod which are sleeved with each other, and the connecting rod is slidably arranged in the sleeve, one of the connecting rod and the sleeve is connected to the connecting seat, and the other of the connecting rod and the sleeve is connected to the sliding seat.

9. The spraying and drilling-anchoring composite small-space top support and fast excavation equipment according to claim 1 is characterized in that: It also includes a moving component, which is arranged at the bottom of the frame. The moving component includes a driving wheel, a guide wheel and a crawler track, and the crawler track is arranged around the driving wheel and the guide wheel.

10. The spraying and drilling-anchoring composite small-cavity top support and fast excavation equipment according to claim 1 is characterized in that: It also includes a cutting assembly, which includes a cutting drill bit. The sliding assembly, the swing assembly and the spray drill anchor assembly are each provided with two, and the sliding assembly, the swing assembly and the spray drill anchor assembly are respectively arranged on opposite sides of the cutting drill bit along the width direction of the frame.

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