Anchor jacking mechanism capable of quickly adjusting adaptive spacing of multiple roadways, digging and anchoring all-in-one machine and construction method

Abstract

The invention discloses a multi-roadway adaptive interval fast adjusting top anchor mechanism, digging and anchoring all-in-one machine and construction method.The multi-roadway adaptive interval fast adjusting top anchor mechanism comprises a combined type underframe structure, a suspension type installation guide plate is installed on one side of the combined type underframe structure, and anchor rod drilling machine connecting frames are hinged to the two sides of the combined type underframe structure correspondingly; anchor rod drilling machines are mounted on the anchor rod drilling machine connecting frames at the two ends; the combined type underframe structure comprises an inner side split type underframe structure and an outer side split type underframe structure, one end of the sliding oil cylinder is fixed to the top end of the suspension type installation guide plate, and the other end of the sliding oil cylinder is connected to the top of the split type underframe structure. The sliding oil cylinder drives the outer side split type bottom frame structure and the jumbolter to horizontally slide along the suspension type installation guide plate. Large-range stepless spacing adjustment can be achieved, construction parameters can be rapidly changed without replacing the top anchor component under different roadway parameters, operation is easy, and cost is not increased.

Description

Technical Field

[0001] This invention relates to the field of coal mine roadway excavation and anchoring construction, and particularly to a top anchoring mechanism with fast-adjustable spacing for multiple roadways, an integrated excavation and anchoring machine, and a construction method. Background Technology

[0002] Currently, integrated tunneling and anchoring machines are being used more and more widely in the construction of coal mine roadways. Compared with other equipment, integrated tunneling and anchoring machines can achieve simultaneous tunneling and anchoring operations, improving the overall efficiency of roadway excavation.

[0003] The existing integrated tunneling and anchoring machine and its top-anchoring structure mainly consist of the integrated tunneling and anchoring machine body and a swing-type four-arm top-anchoring mechanism. The swing-type top-anchoring mechanism includes: a fixed mounting base, swing frames, and four-arm anchor drilling rigs. The fixed base is fixed to the front end of the integrated tunneling and anchoring machine body frame via connecting bolts. Two swing frames are mounted on the fixed base, and two machine-mounted anchor drilling rigs are hinged to each swing frame. This top-anchoring mechanism cannot adjust the spacing between the anchor drilling rigs; it can only adjust the anchor drilling posture at a fixed position by swinging and tilting. Only four anchors can be drilled per cycle; the remaining anchors cannot be drilled. Regarding adaptability to tunnel height and width, due to the use of a fixed swing mounting structure, it is only suitable for tunnels within a fixed height range. When the tunnel dimensions change, the entire top-anchoring mechanism needs to be replaced to adapt to the changes.

[0004] Currently, most roadway roof anchors consist of 7 bolts spaced 800-1000mm apart, with roadway heights and widths ranging from 3.5m to 6m. Existing integrated roadheader and anchor machine is expensive, but its anchoring construction is relatively simple and lacks adaptability. The position and spacing of the anchor bolts are not adjustable, requiring users to replace the entire roof anchoring mechanism when changing roadway construction or when roadway construction parameters change, resulting in high costs and difficult replacement operations. Summary of the Invention

[0005] The technical problem solved by this invention is that in the prior art, when changing the roadway construction or when the roadway construction parameters change, the entire top anchor mechanism needs to be replaced, which is costly and difficult to do.

[0006] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0007] In a first aspect, the present invention provides a top anchor mechanism for quick adjustment of multi-lane adaptability spacing, including a combined base frame structure, a suspended installation guide plate installed on one side of the combined base frame structure, and anchor drill connecting frames hinged to both sides of the combined base frame structure, with anchor drills installed on both ends of the anchor drill connecting frames.

[0008] The combined base frame structure includes an inner split base frame structure and an outer split base frame structure. One end of the sliding cylinder is fixed to the top of the suspended mounting guide plate, and the other end is connected to the top of the split base frame structure. The sliding cylinder drives the outer split base frame structure and the anchor drilling rig to slide horizontally along the suspended mounting guide plate.

[0009] The sliding hydraulic cylinder telescopic drive base frame structure and anchor drilling rig can achieve a wide range of stepless spacing adjustment, and can quickly change construction parameters without replacing the top anchor component under different roadway parameters.

[0010] Both the inner and outer split-type base frame structures are equipped with connecting shafts. The bottoms of the anchor drilling rig connecting frames at both ends are respectively hinged to the inner and outer split-type base frame structures via the connecting shafts. Both the inner and outer split-type base frame structures are equipped with connecting bases at their lower parts. The anchor drilling rig connecting frames are equipped with connecting parts. One end of the swing cylinder is connected to the support arm on the connecting base, and the other end is connected to the connecting part. The tilting and swinging of the anchor drilling rig is adjusted by the extension and retraction of the swing cylinder.

[0011] The inner split-type base frame structure has a first connection hole, and the suspended mounting guide plate has two sets of second connection holes. The first connection hole and the second connection hole are fixed by the base frame fixing bolts. The bottom of the combined base frame structure has a slot, and the suspended mounting guide plate is fixed to the inner split-type base frame structure by the slot and the base frame fixing bolts.

[0012] When the inner split-type base frame structure and the outer split-type base frame structure are connected as one unit by base frame connecting bolts, the inner split-type base frame structure is not connected to the suspended mounting base plate;

[0013] Two cylinder connecting pin seats are respectively installed on the outer split base frame and the suspended mounting guide plate. The two ends of the sliding cylinder are respectively connected to the two cylinder connecting pin seats. The outer split base frame structure is driven to slide horizontally by the extension and retraction of the sliding cylinder.

[0014] When the inner split-type base frame structure and the outer split-type base frame structure work independently as two separate entities, the inner split-type base frame structure is connected to the suspended mounting guide plate as a whole through the base frame fixing bolts. The outer split-type base frame structure is driven by a sliding cylinder to slide horizontally along the suspended mounting guide plate, causing the anchor drilling machine on one side of the outer split-type base frame structure to slide together, while the anchor drilling machine on the one side of the inner split-type base frame structure does not slide.

[0015] The anchor drilling rig connecting frame and the inner side of the anchor drilling rig each have three sets of connecting holes 2. Fixing bolts are installed in two sets of connecting holes 2. A guide sleeve is installed on the slide of the anchor drilling rig. The anchor drilling rig is equipped with a hydraulic cylinder drive chain inside. The bottom of the hydraulic cylinder drive chain is connected to a drill box.

[0016] The anchor drilling rig includes two sets of strokes: a primary stroke consisting of a slide and a guide sleeve, and a secondary stroke consisting of a hydraulic cylinder driving a chain to drive the drill box.

[0017] By designing a double guide sleeve in the first-stage stroke, the overlap during the extension of the drill rig is increased, which ensures the overall stability of the drill rig even when the total stroke requirement is large. The second-stage stroke for placing the drill rod is large, which allows for the placement of longer drill rods and reduces the number of drill rod connections.

[0018] Secondly, the present invention also provides a multi-lane adaptable spacing quick-adjustment tunneling and anchoring integrated machine, including the aforementioned top anchoring mechanism, one side of the suspended installation guide plate is installed on the tunneling and anchoring integrated machine, the top of the top anchoring mechanism is equipped with an anchor rod, and the front end is equipped with a swing cutting roller.

[0019] The suspended mounting plate is fixed on the main frame of the integrated drilling and anchoring machine, the anchor rod is installed on the top of the anchor drilling machine, and the cutting roller is installed at the front end of the anchor drilling machine.

[0020] The tunneling and anchoring machine can achieve simultaneous tunneling and anchoring operations, improving the overall tunneling efficiency.

[0021] Thirdly, the present invention also provides a construction method for a multi-lane adaptable, fast-adjustable tunneling and anchoring integrated machine, comprising:

[0022] Mark the hole positions according to the design spacing of the top anchor holes in the same row. Adjust the tilt angle of the inner anchor drill by adjusting the hinge between the drill rig connecting frame and the combined base frame structure, and in conjunction with the swing cylinder drive, so that the anchor drill is aligned with the hole position and the drilling verticality is maintained.

[0023] The sliding cylinder is activated, and the extension and retraction of the sliding cylinder drives the outer split base frame structure to slide horizontally along the guide rail of the suspended mounting guide plate, adjusting the position of the outer anchor drilling rig according to the designed hole spacing;

[0024] The base frame connecting bolts diagonally and symmetrically connect the inner split base frame structure and the outer split base frame structure. When performing roadway side anchoring operations, the rocker arm is driven by the rocker arm cylinder to tilt and swing, so that the drill rod is aligned with the designed hole position on the roadway side.

[0025] Repeat the above steps to complete the anchoring and subsequent jacking operations.

[0026] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0027] This invention uses a sliding hydraulic cylinder to extend and retract the base frame structure and the anchor drilling rig, enabling a wide range of stepless spacing adjustments. Under different roadway parameters, construction parameters can be quickly changed without replacing the top anchor components. The operation is simple and incurs no additional cost. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the top anchor mechanism structure for quick adjustment of multi-lane adaptability spacing as shown in Embodiment 1;

[0030] Figure 2 This is a schematic diagram of the back structure of the top anchor mechanism with fast adjustment of multi-lane adaptability spacing shown in Embodiment 1.

[0031] Figure 3 This is a right-side schematic diagram of the combined base frame structure of the multi-lane adaptable spacing quick-adjustment top anchor mechanism shown in Embodiment 1.

[0032] Figure 4 This is a left view schematic diagram of the combined base frame structure of the multi-lane adaptable spacing quick-adjustment top anchor mechanism shown in Embodiment 1.

[0033] Figure 5 This is a right-side schematic diagram of the anchor drilling rig connection structure of the multi-lane adaptable spacing quick-adjustment top anchor mechanism shown in Embodiment 1.

[0034] Figure 6 This is a left view of the anchor drilling rig connection structure of the multi-lane adaptable spacing quick-adjustment top anchor mechanism shown in Embodiment 1.

[0035] Figure 7 This is a side view of the operation of the multi-lane adaptable spacing quick-adjustment integrated tunneling and anchoring machine shown in Embodiment 2;

[0036] Figure 8 This is a front view schematic diagram of the multi-lane adaptability spacing quick-adjustment integrated tunneling and anchoring machine operation shown in Embodiment 2;

[0037] Figure 9 This is a schematic diagram of the operation extension of the multi-lane adaptable spacing quick-adjustment tunneling and anchoring integrated machine shown in Embodiment 2;

[0038] Figure 10This is a schematic diagram of the working extension of the top anchor mechanism of the multi-lane adaptable spacing quick-adjustment tunneling and anchoring machine shown in Embodiment 2;

[0039] Figure 11 This is a schematic diagram of the operation and retraction of the multi-lane adaptable spacing quick-adjustment tunneling and anchoring integrated machine shown in Embodiment 2;

[0040] Figure 12 This is a schematic diagram of the top anchor mechanism of the multi-lane adaptable spacing quick-adjustment tunneling and anchoring machine shown in Embodiment 2.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1-Drilling rig connecting frame; 11-Fixing bolt; 12-Connecting piece; 2-Suspended mounting guide plate; 21-Connecting hole one; 3-Anchor drill; 31-Guide sleeve; 32-Connecting hole two; 33-Slide; 34-Hydraulic cylinder drive chain; 35-Drill box; 4-Combined base frame structure; 41-Inner split base frame structure; 42-Outer split base frame structure; 43-Hydraulic cylinder connecting pin seat; 44-Swing hydraulic cylinder; 45-Connecting base; 46-Connecting shaft; 47-Slot; 5-Sliding hydraulic cylinder; 6-Base frame fixing bolt; 7-Base frame connecting bolt; 8-Anchor bolt; 9-Cutting drum. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0044] Example 1:

[0045] This embodiment provides a top anchor mechanism with fast adjustment of multi-lane adaptability spacing, including a combined base frame structure 4. A suspended installation guide plate 2 is installed on one side of the combined base frame structure 4. An anchor drill rig connection frame 1 is hinged to both sides of the combined base frame structure 4. An anchor drill rig 3 is installed on both ends of the anchor drill rig connection frame 1.

[0046] The combined base frame structure 4 includes an inner split base frame structure 41 and an outer split base frame structure 42. One end of the sliding cylinder 5 is fixed to the top of the suspended mounting guide plate 2, and the other end is connected to the top of the split base frame structure 42. The sliding cylinder 5 drives the outer split base frame structure 42 and the anchor drilling rig 3 to slide horizontally along the suspended mounting guide plate 2.

[0047] Both the inner split-type base frame structure 41 and the outer split-type base frame structure 42 are provided with connecting shafts 46. The bottoms of the anchor drilling rig connecting frames 1 at both ends are respectively hinged to the inner split-type base frame structure 41 and the outer split-type base frame structure 42 through the connecting shafts 46. Both the inner split-type base frame structure 41 and the outer split-type base frame structure 42 are provided with connecting bases at their lower parts. Each anchor drilling rig connecting frame 1 is provided with a connecting piece 12. One end of the swing cylinder 44 is connected to the support arm 45 on the connecting base, and the other end is connected to the connecting piece 12. The tilting and swinging of the anchor drilling rig 3 is adjusted by the extension and retraction of the swing cylinder 44.

[0048] The inner split-type base frame structure 41 has a first connection hole, and the suspended mounting guide plate 2 has two sets of second connection holes 21. The first connection hole and the second connection hole 21 are fixed by the base frame fixing bolts 6. The bottom of the combined base frame structure 4 has a slot 47, and the suspended mounting guide plate 2 is fixed to the inner split-type base frame structure 41 by the slot 47 and the base frame fixing bolts 6.

[0049] When the inner split-type base frame structure 41 and the outer split-type base frame structure 42 are connected as one unit by the base frame connecting bolts 7, the inner split-type base frame structure 41 is not connected to the suspended mounting base plate 2.

[0050] Two cylinder connecting pin seats 43 are respectively installed on the outer split base frame 42 and the suspended mounting guide plate 2. The two ends of the sliding cylinder 5 are respectively connected to the two cylinder connecting pin seats 43. The outer split base frame structure 42 is driven to slide horizontally by the extension and retraction of the sliding cylinder 5.

[0051] When the inner split-type base frame structure 41 and the outer split-type base frame structure 42 work independently as two separate entities, the inner split-type base frame structure 41 is connected to the suspended mounting guide plate 2 as a whole by the base frame fixing bolts 6, and the outer split-type base frame structure 42 is driven by the sliding cylinder 5 to slide horizontally along the suspended mounting guide plate 2, causing the anchor drilling machine 3 on one side of the outer split-type base frame structure 42 to slide together, while the anchor drilling machine 3 on the one side of the inner split-type base frame structure 41 does not slide.

[0052] The anchor drilling rig connecting frame 1 and the anchor drilling rig 3 both have three sets of connecting holes 32 on their inner sides. Fixing bolts 11 are installed in two sets of connecting holes 32. A guide sleeve 31 is installed on the slide 33 of the anchor drilling rig 3. The anchor drilling rig 3 is equipped with a hydraulic cylinder drive chain 34 inside. The bottom of the hydraulic cylinder drive chain 34 is connected to a drill box 35.

[0053] The anchor drilling rig 3 includes two sets of strokes: a primary stroke consisting of a slide 33 and a guide sleeve 31, and a secondary stroke consisting of a hydraulic cylinder driving a chain 34 to drive a drill box 35.

[0054] Example 2:

[0055] This embodiment provides a multi-lane adaptable spacing quick-adjustment tunneling and anchoring integrated machine, including a top anchoring mechanism. The suspended installation guide plate 2 is installed on one side of the tunneling and anchoring integrated machine. An anchor rod 8 is installed on the top of the top anchoring mechanism, and a swing cutting roller 9 is installed at the front end.

[0056] The suspended mounting plate 4 is fixed on the main frame of the integrated tunneling and anchoring machine, the anchor bolt 8 is installed on the top of the anchor drilling machine 3, and the cutting roller 9 is installed at the front end of the anchor drilling machine 3.

[0057] Specifically, the oscillating cutting drum at the front end of the tunneling and anchoring machine is used for cutting coal and rock, and the multi-arm anchor drilling rig is used for anchor support on the top and sides of the roadway. All coal mine roadways are designed with multiple rows of anchor bolts and cables for support.

[0058] Example 3:

[0059] This embodiment provides a construction method for a multi-lane adaptable, fast-adjustable tunneling and anchoring integrated machine, including:

[0060] Mark the hole positions according to the design spacing of the top anchor holes in the same row. Adjust the tilt angle of the inner anchor drill 3 by adjusting the hinge between the drill rig connecting frame 1 and the combined base frame structure 4, and drive it with the swing cylinder 44, so that the anchor drill 3 is aligned with the hole position and the drilling verticality is maintained.

[0061] Start the sliding cylinder 5, and drive the outer split base frame structure 42 to slide horizontally along the guide rail of the suspended mounting guide plate 2 through the extension and retraction of the sliding cylinder 5, and adjust the position of the outer anchor drill 3 according to the designed hole spacing;

[0062] The base frame connecting bolts 7 diagonally and symmetrically connect the inner split base frame structure 41 and the outer split base frame structure 42. When performing roadway side anchoring operations, the rocker drill 3 is driven to tilt and swing by the swing cylinder 44 so that the drill rod is aligned with the designed hole position on the roadway side.

[0063] Repeat the above steps to complete the anchoring and subsequent jacking operations.

[0064] Specifically, during the same row of top anchor operations, the hole positions of the inner anchor drilling rig 3 are adjusted according to the different spacings, and it is connected to the suspended installation guide plate 2 by the base frame fixing bolts 6. During the construction of different rows, the hole positions of the inner anchor drilling rig 3 do not need to be adjusted, reducing auxiliary time. The outer anchor drilling rig 3 is driven by the sliding hydraulic cylinder 5 to construct anchors with different hole spacings. One or two anchors can be drilled according to the construction rhythm, improving construction efficiency.

[0065] Specifically, the two parts of the combined base frame structure 4 are connected as one unit by base frame connecting bolts 7. The spacing between the two parts is ensured to be twice the hole spacing by adding shims, and the entire drilling rig is driven by the sliding hydraulic cylinder 5. The first cycle installs the 1st and 3rd anchor rods, and the second cycle installs the 2nd and 4th anchor rods. The entire row of anchor rods is installed through two cycles.

[0066] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A top anchor mechanism with rapidly adjustable spacing for multiple roadways, characterized in that, It includes a combined base frame structure (4), a suspended installation guide plate (2) is installed on one side of the combined base frame structure (4), and anchor drilling machine connecting frames (1) are respectively hinged on both sides of the combined base frame structure (4), and anchor drilling machines (3) are installed on both ends of the anchor drilling machine connecting frames (1). The combined base frame structure (4) includes an inner split base frame structure (41) and an outer split base frame structure (42). One end of the sliding cylinder (5) is fixed to the top of the suspended mounting guide plate (2), and the other end is connected to the top of the split base frame structure (42). The sliding cylinder (5) drives the outer split base frame structure (42) and the anchor drilling machine (3) to slide horizontally along the suspended mounting guide plate (2).

2. The top anchor mechanism with fast-adjustable spacing for multiple lanes as described in claim 1, characterized in that, Both the inner split-type base frame structure (41) and the outer split-type base frame structure (42) are provided with connecting shafts (46). The bottom of the anchor drilling rig connecting frame (1) at both ends is respectively hinged to the inner split-type base frame structure (41) and the outer split-type base frame structure (42) through the connecting shafts (46). Both the inner split-type base frame structure (41) and the outer split-type base frame structure (42) are provided with connecting bases at the bottom. Both the anchor drilling rig connecting frame (1) are provided with connecting parts (12). One end of the swing cylinder (44) is connected to the support arm (45) on the connecting base, and the other end is connected to the connecting part (12). The tilting swing of the anchor drilling rig (3) is adjusted by the extension and retraction of the swing cylinder (44).

3. The top anchor mechanism with fast adjustment of multi-lane adaptability spacing according to claim 1, characterized in that, The inner split-type base frame structure (41) has a first connection hole, and the suspended mounting guide plate (2) has two sets of second connection holes (21). The first connection hole and the second connection hole (21) are fixed by bolts. The bottom of the combined base frame structure (4) is provided with a slot (47). The suspended mounting guide plate (2) is fixed to the inner split-type base frame structure (41) by the slot and bolts.

4. The top anchor mechanism with fast adjustment of multi-lane adaptability spacing according to claim 1, characterized in that, When the inner split-type base frame structure (41) and the outer split-type base frame structure (42) are connected as one unit by the base frame connecting bolts (7), the inner split-type base frame structure (41) is not connected to the suspended mounting base plate (2); Two cylinder connecting pin seats (43) are respectively installed on the outer split base frame (42) and the suspended mounting guide plate (2). The two ends of the sliding cylinder (5) are respectively connected to the two cylinder connecting pin seats (43). The outer split base frame structure (42) is driven to slide horizontally by the extension and retraction of the sliding cylinder (5).

5. The top anchor mechanism with fast adjustment of multi-lane adaptability spacing according to claim 1, characterized in that, When the inner split-type base frame structure (41) and the outer split-type base frame structure (42) work independently as two separate entities, the inner split-type base frame structure (41) is connected to the suspended installation guide plate (2) by the base frame fixing bolts (6), and the outer split-type base frame structure (42) is driven to slide horizontally along the suspended installation guide plate (2) by the sliding cylinder (5), which drives the anchor drilling machine (3) on one side of the outer split-type base frame structure (42) to slide together, while the anchor drilling machine (3) on one side of the inner split-type base frame structure (41) does not slide.

6. The top anchor mechanism with fast adjustment of multi-lane adaptability spacing according to claim 1, characterized in that, The anchor drill connecting frame (1) and the anchor drill (3) both have three sets of connecting holes (32) on their inner sides. Fixing bolts (11) are installed in the two sets of connecting holes (32). A guide sleeve (31) is installed on the slide (33) of the anchor drill (3). The anchor drill (3) is equipped with a hydraulic cylinder drive chain (34) inside. A drill box (35) is connected to the bottom of the hydraulic cylinder drive chain (34).

7. The top anchor mechanism for rapid adjustment of multi-lane adaptability spacing according to claim 1, characterized in that, The anchor drilling rig (3) includes two sets of strokes: a primary stroke consisting of a slide (33) and a guide sleeve (31), and a secondary stroke consisting of a hydraulic cylinder driving chain (34) driving the drill box (35).

8. A multi-lane adaptable, fast-adjustable tunneling and anchoring integrated machine, characterized in that, Includes the top anchoring mechanism as described in any one of claims 1 to 7, wherein one side of the suspended installation guide plate is installed on the integrated excavation and anchoring machine, and an anchor rod (8) is installed on the top of the top anchoring mechanism and a swing cutting roller (9) is installed at the front end.

9. The multi-lane adaptable spacing quick-adjustment tunneling and anchoring integrated machine according to claim 8, characterized in that, The suspended mounting plate (4) is fixed on the main frame of the integrated tunneling and anchoring machine, the anchor rod (8) is installed on the top of the anchor drilling machine (3), and the cutting roller (9) is installed at the front end of the anchor drilling machine (3).

10. A construction method for a multi-lane adaptable, fast-adjustable tunneling and anchoring integrated machine, characterized in that, include: Mark the hole positions according to the design spacing of the top anchor holes in the same row. Adjust the tilt angle of the inner anchor drill (3) by adjusting the hinge between the drill connecting frame (1) and the combined base frame structure (4) in conjunction with the swing cylinder (44) to make the anchor drill (3) aligned with the hole position and maintain the verticality of the drill hole. Start the sliding cylinder (5), and drive the outer split base frame structure (42) by the extension and retraction of the sliding cylinder (5) to slide horizontally along the guide rail of the suspended mounting guide plate (2), and adjust the position of the outer anchor drill (3) according to the designed hole spacing; The base frame connecting bolts (7) diagonally and symmetrically connect the inner split base frame structure (41) and the outer split base frame structure (42). When the roadway side anchoring operation is carried out, the rocking cylinder (44) drives the rocking drill (3) to tilt and swing so that the drill rod is aligned with the designed hole position of the roadway side. Repeat the above steps to complete the anchoring and subsequent jacking operations.

Images