Small-spacing roof jumbolter adjusting mechanism for coal mine

Abstract

The invention discloses an adjusting mechanism of a small-spacing top anchor rod drilling machine for a coal mine, which comprises an external drilling machine for a top anchor rod and an internal drilling machine for a side anchor rod, the internal drilling machine is connected with a lifting oil cylinder, and a rotating mechanism is fixed on a sliding block of the lifting oil cylinder; the rotating mechanism drives the internal drilling machine to rotate left and right to adjust the side wall anchoring angle, the back face of the lifting oil cylinder is further provided with a swing mechanism used for driving the internal drilling machine to swing front and back to adjust the angle, and the external drilling machine is connected with a side sliding mechanism which drives the external drilling machine to move transversely to give way to the internal drilling machine during rotation. The external drilling machine and the external drilling machine are both connected with a front-back sliding mechanism; all-directional operation in the front-back direction, the up-down direction and the left-right direction can be achieved, the mechanism can conduct accurate drilling and anchor rod installation operation on various complex terrains, under the complex conditions, the empty top distance is shortened, the empty side distance can be greatly shortened, the tedious manual anchor rod supplementary driving work is avoided, and the supporting efficiency and accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of anchor drills, in particular to an adjustment mechanism for a top anchor drill with a small clearance for a coal mine. Background Art

[0002] In the complex environment of coal mining, coal roadway support is a key link to ensure mine safety and improve mining efficiency, and its importance is self-evident. The bolter can quickly and accurately complete the drilling and bolt installation tasks, reducing the burden on workers. The bolter is divided into a roof bolter and a side bolter. The roof bolter is arranged behind the shovel of the anchoring machine and in front of the crawler. It is arranged in 4 parts, two on each side, to anchor the anchors and cables of the roof; the side bolter is arranged in the middle of the anchoring machine, anchoring the side bolts and cables, one on each side.

[0003] However, most of the anchor drills commonly available on the market are roof anchor drills that can only anchor the roof, or side wall anchor drills that can only anchor the side walls, and they cannot achieve the function of one machine with multiple functions; in addition, the biggest disadvantage of this equipment is that the empty top distance of the side wall anchors is too large and the flexibility is too small, especially in mining areas with complex geological conditions and variable coal seam thickness, which causes the roof and side walls to be empty for a long time, affecting the support efficiency, and then causing phenomena such as roof falling off and side wall explosion, affecting the excavation efficiency. Traditional support methods can no longer meet the production requirements of modern mines, seriously restricting the output and benefits of coal mines, and posing a major threat to mine safety production. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an adjustment mechanism for a top anchor drill with a small clearance for coal mines to solve the above problems.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A small-wall-distance top anchor drilling rig adjustment mechanism for coal mines, comprising an external drilling rig for top anchors and an internal drilling rig for side wall anchors, the internal drilling rig being connected to a lifting cylinder, a rotating mechanism being fixed on a slider of the lifting cylinder, the internal drilling rig being driven by the rotating mechanism to rotate left and right to adjust the side wall anchoring angle, a swinging mechanism being provided on the back of the lifting cylinder for driving the internal drilling rig to swing back and forth to adjust the angle, the external drilling rig being connected to a side sliding mechanism, the side sliding mechanism driving the external drilling rig to move laterally to make way for the internal drilling rig when rotating, and both the external drilling rig and the external drilling rig being connected to a front and rear sliding mechanism.

[0007] In the above invention content, further, the rotating mechanism includes a support, a rotating cylinder and a connecting plate one fixedly connected to the internal drilling rig, the support is fixedly connected to the slider on the lifting cylinder, the bottom end of the rotating cylinder is hinged to the top of the support, the telescopic end of the rotating cylinder is fixedly connected to the top of the connecting plate one, and the bottom of the connecting plate one is rotatably connected to the slider on the lifting cylinder, and the internal drilling rig is driven to rotate left and right by the rotating cylinder.

[0008] In the above invention content, further, the swing mechanism includes a base, a swing cylinder and a triangular plate fixed on the back of the lifting cylinder, the bottom end of the triangular plate is hinged to the side of the base, the swing cylinder is hinged to the top of the base, and the telescopic end of the swing cylinder is hinged to the top of the triangular plate.

[0009] In the above invention, further, the side sliding mechanism includes a side sliding cylinder, a movable block and a connecting plate 2 fixedly connected to an external drilling rig, the telescopic end of the side sliding cylinder is fixedly connected to the movable block, and the movable block is fixedly connected to the bottom of the connecting plate 2.

[0010] In the above invention, further, the two front and rear sliding mechanisms are both front and rear pushing cylinders, the telescopic ends of the pushing cylinders are fixedly connected to the base and the side sliding cylinders respectively, and the front and rear pushing cylinders are vertically arranged with the side sliding cylinders.

[0011] In the above invention, further, the front and rear pushing cylinders and the side sliding cylinders are both provided with protective shells.

[0012] The beneficial effects of the present invention are:

[0013] The present invention can simultaneously carry out top anchoring and side wall anchoring, meet the function of front-moving anchoring of top plate anchoring and anchor cable, reduce the empty top distance, and meet the function of anchoring side wall anchoring and anchor cable, reduce the empty wall distance, suitable for timely anchoring function under complex geological conditions, and ensure the safety of excavation;

[0014] Secondly, through the rotating mechanism, side sliding mechanism and lifting cylinder, multi-directional sliding and rotational movement such as front and back, up and down, left and right can be achieved, and it has the ability to rotate 360° with the front and back direction as the axis. This all-round, no-dead-angle operation capability enables the mechanism to perform precise drilling and anchor installation operations under various complex terrain and cross-section conditions. Under complex conditions, it can not only reduce the empty top distance, but also greatly reduce the empty help distance, avoiding the tedious manual work of additional anchoring and improving the support efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a state diagram of the internal drilling rig of the present invention;

[0017] Figure 3 for Figure 2 Another perspective of the picture;

[0018] Figure 4 It is a structural schematic diagram of the internal drilling rig of the present invention;

[0019] Figure 5 It is a schematic diagram of the lifting cylinder and the rotating mechanism of the present invention;

[0020] Figure 6 It is a schematic structural diagram of the external drilling rig and the side sliding mechanism of the present invention.

[0021] In the figure, 1-external drilling rig, 2-internal drilling rig, 3-lifting cylinder, 4-rotating mechanism, 41-support, 42-rotating cylinder, 43-connecting plate 1, 5-swinging mechanism, 51-base, 52-swinging cylinder, 53-triangular plate, 6-side sliding mechanism, 61-side sliding cylinder, 62-movable block, 63-connecting plate 2, 7-front and rear sliding mechanism. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] Please see attached Figure 1-3 As shown, a small-space top bolting rig adjustment mechanism for coal mines is symmetrically arranged on both sides of the bolting machine.

[0024] Specifically, it includes an external drilling rig 1 for top anchors and an internal drilling rig 2 for side anchors. The internal drilling rig 2 is close to the side wall of the tunnel. The internal drilling rig 2 can be used not only for side anchors but also for top anchors.

[0025] The internal drilling rig 2 is connected to a lifting cylinder 3, and a rotating mechanism 4 is fixed on the slider of the lifting cylinder 3. The rotating mechanism 4 drives the internal drilling rig 2 to rotate left and right to adjust the side anchoring angle. The back of the lifting cylinder 3 is also provided with a swing mechanism 5 for driving the internal drilling rig 2 to swing forward and backward to adjust the angle. Under the action of multiple adjustment mechanisms, the internal drilling rig 2 can realize multi-directional sliding and rotation movement such as front and back, up and down, left and right, and has the ability to rotate 360° with the front and back direction as the axis, realizing all-round and no-dead-angle operation capability;

[0026] Because the distance between the internal drilling rig 2 and the external drilling rig 1 is relatively close, and the drilling rig itself is relatively long when performing anchor bolting, in order to facilitate the internal drilling rig 2 to perform side anchor bolting, the external drilling rig 1 is connected to a side sliding mechanism 6, and the side sliding mechanism 6 drives the external drilling rig 1 to move laterally, which can be used to make way for the internal drilling rig 2 to rotate, and the external drilling rig 1 and the external drilling rig 1 are both connected to a front and rear sliding mechanism 7, which can drive the drilling rig forward to achieve small empty top distance anchoring.

[0027] As attached Figure 4 and attached Figure 5 As shown, the rotating mechanism 4 includes a support 41, a rotating cylinder 42 and a connecting plate 43 fixedly connected to the internal drilling rig 2, the support 41 is fixedly connected to the slider on the lifting cylinder 3, the bottom end of the rotating cylinder 42 is hinged to the top of the support 41, the telescopic end of the rotating cylinder 42 is fixedly connected to the top of the connecting plate 43, and the bottom of the connecting plate 43 is rotatably connected to the slider on the lifting cylinder 3, the internal drilling rig 2 is driven to rotate left and right through the telescopic end of the rotating cylinder 42, that is, it can rotate with the top plate drilling rig as the axis, and can anchor the side wall and the corner anchor rod. The rotation state of the internal drilling rig 2 is shown in the attached figure Figure 3 shown.

[0028] Please see attached Figure 4 As shown, the swing mechanism 5 includes a base 51, a swing cylinder 52, and a triangular plate 53 fixed on the back of the lifting cylinder 3. The bottom end of the triangular plate 53 is hinged to the side of the base 51, the swing cylinder 52 is hinged to the top of the base 51, and the telescopic end of the swing cylinder 52 is hinged to the top of the triangular plate 53. Its working principle is the same as that of the rotating mechanism 4, but the rotation direction is different. The swing mechanism 5 can adjust the orientation of the drilling rig forward and backward to facilitate hole alignment. Because the rotating mechanism 4 is fixed on the slider of the lifting cylinder 3, the swing cylinder 52 will drive the rotating mechanism 4 and the internal drilling rig 2 to swing forward and backward when working.

[0029] In this embodiment, the internal drilling rig 2 can be used not only for top anchor bolts but also for side anchor bolts. When performing top anchor bolts, there is no need to adjust the swing mechanism 5 and the rotation mechanism 4, and the internal drilling rig 2 can be arranged vertically.

[0030] Please see attached Figure 6As shown, the side sliding mechanism 6 includes a side sliding cylinder 61, a movable block 62 and a connecting plate 2 63 fixedly connected to the external drilling rig 1. The telescopic end of the side sliding cylinder 61 is fixedly connected to the movable block 62, and the movable block 62 is fixedly connected to the bottom of the connecting plate 2 63. The side sliding cylinder 61 is used to realize the left and right movement of the external drilling rig 1, adjust the distance between the drilling rigs, and adjust the anchor spacing. The external drilling rig 1 is only used for the top anchor. Therefore, the external drilling rig 1 is not provided with a rotating mechanism 4 and a swinging mechanism 5. The internal drilling rig 2 and the external drilling rig 1 divide the work and cooperate with each other. The top anchor and the side anchor are carried out simultaneously to improve work efficiency.

[0031] The two front and rear sliding mechanisms 7 are both front and rear pushing cylinders, the telescopic ends of the pushing cylinders are fixedly connected to the base 51 and the side sliding cylinder 61 respectively, and the front and rear pushing cylinders are vertically arranged with the side sliding cylinder 61 .

[0032] In the above embodiment, preferably, the front and rear pushing cylinders and the side sliding cylinder 61 are both provided with protective casings.

[0033] Specific working process:

[0034] When anchoring the top plate, first make the external drill 1 and the internal drill 2 perpendicular to the top plate, operate the external drill 1 to move forward a certain distance, and then anchor the top plate anchor and the anchor. At this time, the top plate anchor drill rig's empty top distance is greatly reduced, so that the anchor is close to the head when anchoring; small empty top operation is achieved. In this process, the internal drill 2 can also perform top anchoring as described above;

[0035] After the external drilling rig 1 is anchored, the side sliding mechanism 6 is operated to slide the external drilling rig 1 toward the side wall. After sliding to a certain position, the external drilling rig 1 is operated to anchor the outermost roof anchor rod and anchor cable.

[0036] When anchoring the side wall anchor rods and anchor cables, first operate the external drilling rig 1 to move forward or sideways to make way for the internal drilling rig 2, until the internal drilling rig 2 is not interfered when rotating, the lifting cylinder 3 drives the internal drilling rig 2 to rise a certain distance, and the rotating mechanism 4 then drives the internal drilling rig 2 to rotate, and rotates a certain angle to anchor the angle anchor rod and anchor cable; after anchoring the angle anchor rod, the rotating mechanism 4 rotates the anchor drilling rig to make the anchor drilling rig perpendicular to the side wall, and the lifting cylinder 3 drives the internal drilling rig 2 to descend a certain distance to anchor the side wall anchor rod, ensuring that the empty wall distance of the side wall anchor rod is shortened, while meeting the requirements of anchoring the side wall, shortening the empty wall time and empty wall distance.

[0037] This solution reduces the empty top distance of excavation, enables small hole top operation, realizes the all-round and no-dead-angle operation capability of the anchor rod, and can meet the excavation anchoring technology under complex geological conditions.

[0038] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0039] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A small empty wall distance top bolt drilling rig adjustment mechanism for coal mines, characterized in that: The invention comprises an external drilling rig (1) for top anchor rods and an internal drilling rig (2) for side anchor rods. The internal drilling rig (2) is connected to a lifting cylinder (3). A rotating mechanism (4) is fixed on a slider of the lifting cylinder (3). The internal drilling rig (2) is driven by the rotating mechanism (4) to rotate left and right to adjust the side anchoring angle. A swing mechanism (5) is also provided on the back of the lifting cylinder (3) for driving the internal drilling rig (2) to swing forward and backward to adjust the angle. The external drilling rig (1) is connected to a side sliding mechanism (6). The side sliding mechanism (6) drives the external drilling rig (1) to move horizontally to make way for the internal drilling rig (2) when rotating. The external drilling rig (1) and the external drilling rig (1) are both connected to a front and rear sliding mechanism (7).

2. The small-space top bolt drilling rig adjustment mechanism for coal mines according to claim 1 is characterized in that: The rotating mechanism (4) comprises a support (41), a rotating oil cylinder (42) and a connecting plate (43) fixedly connected to the internal drilling rig (2); the support (41) is fixedly connected to a slider on the lifting oil cylinder (3); the bottom end of the rotating oil cylinder (42) is hinged to the top of the support (41); the telescopic end of the rotating oil cylinder (42) is fixedly connected to the top of the connecting plate (43); and the bottom of the connecting plate (43) is rotatably connected to the slider on the lifting oil cylinder (3); the internal drilling rig (2) is driven to rotate left and right through the rotating oil cylinder (42).

3. The small-space-distance top bolt drilling rig adjustment mechanism for coal mines according to claim 2 is characterized in that: The swing mechanism (5) comprises a base (51), a swing cylinder (52) and a triangular plate (53) fixed on the back of the lifting cylinder (3); the bottom end of the triangular plate (53) is hinged to the side of the base (51); the swing cylinder (52) is hinged to the top of the base (51); and the telescopic end of the swing cylinder (52) is hinged to the top of the triangular plate (53).

4. The small-space-distance top bolt drilling rig adjustment mechanism for coal mines according to claim 3 is characterized in that: The side sliding mechanism (6) comprises a side sliding oil cylinder (61), a movable block (62) and a second connecting plate (63) fixedly connected to an external drilling rig (1); the telescopic end of the side sliding oil cylinder (61) is fixedly connected to the movable block (62), and the movable block (62) is fixedly connected to the bottom of the second connecting plate (63).

5. The small-space-distance top bolt drilling rig adjustment mechanism for coal mines according to claim 4 is characterized in that: The two front and rear sliding mechanisms (7) are both front and rear pushing cylinders, the telescopic ends of the pushing cylinders are respectively fixedly connected to the base (51) and the side sliding cylinder (61), and the front and rear pushing cylinders are vertically arranged with the side sliding cylinder (61).

6. The small-space-distance top bolt drilling rig adjustment mechanism for coal mines according to claim 5 is characterized in that: The front and rear pushing cylinders and the side sliding cylinder (61) are both provided with protective shells.

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