Automatic net laying device for coal mine roadway driving working face

Abstract

The utility model relates to the technical field of roadway support equipment, in particular to an automatic lapping device for a coal mine roadway driving face, which comprises a heading machine body, a plurality of manipulator sliding platforms are fixed at the top of the heading machine body, and a manipulator big arm is arranged at the top of each manipulator sliding platform. The top of each large manipulator arm is provided with a small manipulator arm, each small manipulator arm is provided with a claw frame reversing motor, an anchor net bin is arranged at the upper end of a scraper conveyor at the tail of the heading machine, claw frames are arranged at the top of the anchor net bin and the outer end of each claw frame reversing motor, an anchor net is arranged on the inner side of each claw frame, and the outer end of each claw frame reversing motor is provided with a claw frame. Two connecting rods are arranged on the outer side of each hook claw frame, and rotating hook claws are arranged at the two ends of each connecting rod. According to the underground roadway net laying machine, the work of underground roadway net laying is completed through machine operation, the problems that manual operation is mainly adopted, labor intensity is large, and the number of operators is large are solved, working intensity can be effectively improved, and production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to roadway support equipment technical field, concretely is a kind of automatic net laying device of coal mine roadway driving face. BACKGROUND

[0002] In coal mining, especially in coal mining, the two sides and top of coal mine roadway need to be laid with metal mesh to cooperate with anchor rod anchor cable to realize anchoring effect on roadway by the principle of "self-reinforcement", to achieve the purpose of blocking coal block rockfall injury, to ensure the safety of personnel in roadway.

[0003] At present, the net laying operation of underground driving face roadway still mainly relies on manual operation. The current situation of underground net laying operation: a large number of manpower is needed for mesh transportation, placement and anchoring, and the process has high labor intensity and many safety hazards; at the same time, due to the narrow space of coal mine roadway and the complexity of operation environment, the manual net laying process has low operation efficiency and non-standard operation, which seriously affects the support quality and construction safety of driving roadway. To solve the above problems, the utility model designs an automatic net laying device for coal mine roadway driving face. UTILITY MODEL CONTENTS

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an automatic net laying device for coal mine roadway driving face, which effectively solves the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an automatic net laying device for coal mine roadway driving face, comprising a driving machine body, a central control console is fixed on the top of the driving machine body, a plurality of mechanical hand sliding platforms are also fixed on the top of the driving machine body, a mechanical hand rotating base is slidably connected inside each mechanical hand sliding platform, a mechanical hand large arm is arranged on the top of each mechanical hand rotating base, a mechanical hand small arm is arranged on the top of each mechanical hand large arm, a mechanical hand wrist joint is fixed on the top of each mechanical hand small arm, a hook claw frame reversing motor is rotatably connected outside each mechanical hand wrist joint, a scraper conveyor is also fixed on the top of the driving machine body, a scraper conveyor tail is fixed on the top of the scraper conveyor, an anchor net warehouse is arranged on the top of the scraper conveyor tail, a hook claw frame is arranged on the top of the anchor net warehouse and the outer end of each hook claw frame reversing motor, an anchor net is arranged inside each hook claw frame, two connecting rods are arranged outside each hook claw frame, a hook claw reversing head is fixed on both ends of each connecting rod, a rotating hook claw is fixed outside each hook claw reversing head, a material scraping frame is also fixed on the left side of the driving machine body, a cutting head is arranged on the top of the material scraping frame and fixedly connected with the driving machine body, and a mobile crawler chassis system is arranged at the front and rear ends of the driving machine body.

[0006] Preferably, the bottom of the anchor net bin is fixedly connected to the tunnel boring machine body through two fixing rods, a plurality of anchor nets are provided inside the anchor net bin, a mobile frame is fixed to the right end of the anchor net bin, a main connecting frame is fixed to the top of the mobile frame, a secondary connecting frame is fixed to the bottom of the left end of the main connecting frame, and the secondary connecting frame is fixedly connected to the hook frame at the top of the anchor net bin.

[0007] Preferably, each of the manipulator rotating bases is slidably connected to the top of a first-stage reducer, and a rotary motor is fixed on the top of each first-stage reducer and is rotatably connected to the manipulator rotating base at its bottom. A second-stage reducer is also fixed on the top of each first-stage reducer, and a large arm motor is also fixed on the top of each first-stage reducer. Each large arm motor is rotatably connected to the manipulator arm on its outside through a rotating shaft, and each manipulator arm is rotatably connected to the second-stage reducer on its inside through a rotating shaft.

[0008] Preferably, a small arm motor is fixed to the top inner side of each manipulator arm, each small arm motor is rotationally connected to the manipulator small arm on its outside through a rotating shaft, each manipulator wrist joint is rotationally connected to a manipulator wrist joint reversing crank inside, and each manipulator wrist joint reversing crank is fixedly connected to the hook frame reversing motor on its outside.

[0009] Preferably, each of the hook frame reversing motors is rotatably connected to the hook frame on its outside, a hook claw driving electric cylinder rod is fixed inside each of the hook frame, and electric pole telescopic rod ear seats are fixed at both ends of each of the hook claw driving electric cylinder rods, and a reversing crank is rotatably connected to the electric pole telescopic rod ear seat through a reversing shaft, and each reversing crank is fixedly connected to the connecting rod at one end of each of the hook frame, and a connecting plate is fastened to the outside of each of the hook frame by bolts, and positioning rods are fixed on both sides of each of the connecting plates, and positioning rings are fixed at both ends of each of the positioning rods, and each positioning ring is slidably connected to the connecting rod inside it.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model drives the electric cylinder rod to extend through the hook claw, so that the ear seat of the electric lever telescopic rod moves, thereby driving the reversing crank to rotate, thereby driving the hook claw reversing head to rotate, thereby driving the rotating hook claw to rotate, so that the rotating hook claw is clamped into the cavity of the anchor net, and then the hook claw drives the electric cylinder rod to reset, so that the rotating hook claw clamps the anchor net, thereby facilitating the transportation of the anchor net, thereby ensuring the net laying efficiency and the net laying accuracy.

[0012] The utility model can move the primary reducer through the rotating base of the manipulator, and can reverse the primary reducer through the rotating motor, further rotate the manipulator arm through the big arm motor, and reverse the manipulator arm through the small arm motor, and then reverse the hook frame reversing motor through the mechanical wrist joint reversing crank, and cooperate with the hook frame reversing motor to enable the hook frame to achieve all-round reversal and movement, thereby ensuring that the hook frame can transport the anchor net to the required position, thereby further ensuring the accuracy of the net laying, and thus ensuring the net laying effect.

[0013] The utility model can make the hook frame on the top of the anchor net bin move vertically through the extension and retraction of the movable frame, so that the anchor net can be raised, thereby ensuring the transportation efficiency and transportation accuracy. At the same time, the device can support the anchor net through the anchor net bin, thereby ensuring the stability of the anchor net. At the same time, the device can replace manual construction through machine operation to complete the work of anchoring underground tunnels, solve the problem of mainly manual work, consuming a lot of manpower and high labor intensity, and can reduce manual workload and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached figure:

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 This is a rear view schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the top of the sliding platform of the manipulator of the utility model;

[0019] Figure 4 This is a schematic diagram of the utility model robot;

[0020] Figure 5 This is a schematic diagram of the upper end of the rotary base of the utility model robot;

[0021] Figure 6 This is a schematic diagram of the outer side of the connecting plate of the utility model;

[0022] Figure 7 This is a schematic diagram of the connecting plate of the present utility model.

[0023] In the figure: 1-anchor net bin; 2-scraper conveyor; 3-manipulator arm; 4-trailer body; 5-scraper frame; 6-cutting head; 7-hook frame; 8-center console; 101-main connecting frame; 102-anchor net; 103-secondary connecting frame; 104-mobile frame; 201-scraper conveyor tail; 301-manipulator sliding platform; 302-manipulator forearm; 303-manipulator slewing base; 304-manipulator wrist joint; 305-slewing motor; 306-arm motor Machine; 307-arm motor; 308-hook frame reversing motor; 309-mechanical wrist joint reversing crank; 310-first-stage reducer; 311-second-stage reducer; 401-mobile crawler chassis system; 701-hook drive electric cylinder rod; 702-electric lever telescopic rod ear seat; 703-hook reversing head; 704-rotating hook; 705-positioning rod; 706-connecting rod; 707-positioning ring; 708-reversing crank; 709-connecting plate; 710-reversing shaft. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Embodiment 1, by Figures 1-4 、 Figure 6The utility model includes a tunnel boring machine body 4, which is made of alloy material. The tunnel boring machine body 4 is used to support the entire device. A central console 8 is fixed on the top of the tunnel boring machine body 4. The central console 8 is used to control the entire device. A plurality of manipulator sliding platforms 301 are also fixed on the top of the tunnel boring machine body 4. The manipulator arm 3 is made of alloy material. The manipulator sliding platform 301 is used to position the manipulator rotary base 303. Each of the manipulator sliding platforms 301 is internally slidably connected to a manipulator rotary base 303. The manipulator rotary base 303 is made of alloy material. The manipulator rotary base 303 can move along the manipulator sliding platform 301 and is used to position the first level. Reducer 310, a manipulator arm 3 is provided on the top of each manipulator rotary base 303, and the manipulator arm 3 is made of alloy material. A manipulator arm 302 is provided on the top of each manipulator arm 3, and the manipulator arm 302 is made of alloy material. A mechanical wrist joint 304 is fixed on the top of each manipulator arm 302, and the mechanical wrist joint 304 is made of alloy material. The manipulator arm 3, the manipulator arm 302 and the mechanical wrist joint 304 cooperate to move the mechanical wrist joint reversing crank 309 to the desired position, and the outer side of each mechanical wrist joint 304 is connected to a hook frame reversing motor 308, and the hook frame reversing motor 308 can drive the hook frame 7 to rotate The top of the tunnel boring machine body 4 is also fixed with a scraper conveyor 2, and the scraper conveyor 2 is made of alloy material. A scraper conveyor tail 201 is fixed on the top of the scraper conveyor 2. The scraper conveyor 2 and the scraper conveyor tail 201 cooperate to transport materials to the right end of the entire equipment. An anchor net bin 1 is provided on the top of the scraper conveyor tail 201. The anchor net bin 1 is made of alloy material. The anchor net bin 1 is used to support the anchor net 102. A hook rack 7 is provided on the top of the anchor net bin 1 and the outer end of each hook rack reversing motor 308. The hook rack 7 is made of alloy material. The hook rack 7 is used to position the hook drive electric cylinder rod 701. An anchor net 102 is provided on the inside of each hook rack 7. 2 is made of alloy material. The anchor net 102 is used to reinforce coal mine tunnels. Two connecting rods 706 are provided on the outside of each hook frame 7. The connecting rods 706 are made of alloy material. The connecting rods 706 are used to position the hook reversing head 703. The hook reversing heads 703 are fixed at both ends of each connecting rod 706. The hook reversing heads 703 are made of alloy material. The hook reversing heads 703 are used to position the rotating hook 704. A rotating hook 704 is fixed on the outside of each hook reversing head 703. The rotating hook 704 is made of alloy material. The rotating hook 704 is used to position the anchor net 102. A scraper frame 5 is also fixed on the left side of the tunneling machine body 4. The scraper frame 5 is used to collect debris.The top of the raking frame 5 is provided with a cutting head 6 fixedly connected with the tunneling machine body 4, the cutting head 6 is used for cutting the rock stratum and coal seam in front of the roadway, and the tunneling machine body 4 is provided with a mobile crawler chassis system 401 at the front and rear ends, the mobile crawler chassis system 401 can drive the whole equipment to be movable and steerable in the coal mine roadway.

[0026] In the second embodiment, on the basis of the first embodiment, the tunneling machine body 4 is provided with a mobile crawler chassis system 401 at the front and rear ends, the mobile crawler chassis system 401 can drive the whole equipment to be movable and steerable in the coal mine roadway. Figure 5 , Figure 7The anchor net bin 1 bottom is fixedly connected with the tunneling machine body 4 through two fixed rods, the anchor net bin 1 is internally provided with a plurality of anchor nets 102, the anchor net bin 1 right end is fixedly connected with a moving frame 104, the moving frame 104 is telescopic, thereby the main connecting frame 101 can be lifted, the moving frame 104 top is fixedly connected with the main connecting frame 101, the main connecting frame 101 is made of alloy material, the main connecting frame 101 is used for positioning the auxiliary connecting frame 103, the main connecting frame 101 left end bottom is fixedly connected with the auxiliary connecting frame 103, the auxiliary connecting frame 103 is made of alloy material, the moving frame 104 telescopic can drive the anchor net bin 1 top claw frame 7 to move up and down, the auxiliary connecting frame 103 is fixedly connected with the anchor net bin 1 top claw frame 7, each mechanical hand rotary base 303 top is slidably connected with a primary speed reducer 310, the primary speed reducer 310 is made of alloy material, the primary speed reducer 310 is used for positioning the rotary motor 305, each primary speed reducer 310 top is fixedly connected with the rotary motor 305, and the rotary motor 305 bottom is rotatably connected with the mechanical hand rotary base 303, the rotary motor 305 can drive the primary speed reducer 310 to rotate, thereby the mechanical hand large arm 3 can change direction, each primary speed reducer 310 top is further fixedly connected with a secondary speed reducer 311, the secondary speed reducer 311 is made of alloy material, the secondary speed reducer 311 is used for positioning the mechanical hand large arm 3, each primary speed reducer 310 top is further fixedly connected with a large arm motor 306, the large arm motor 306 can drive the mechanical hand large arm 3 to rotate, each large arm motor 306 is rotatably connected with the mechanical hand large arm 3 outside through a rotating shaft, each mechanical hand large arm 3 is rotatably connected with the secondary speed reducer 311 inside through a rotating shaft, each mechanical hand large arm 3 inside top is further fixedly connected with a small arm motor 307, the small arm motor 307 can drive the mechanical hand small arm 302 to rotate, each small arm motor 307 is rotatably connected with the mechanical hand small arm 302 outside through a rotating shaft, each mechanical hand wrist joint 304 is rotatably connected with a mechanical hand wrist joint reversing crank 309 inside, the mechanical hand wrist joint reversing crank 309 is used for positioning the claw frame reversing motor 308, thereby the claw frame reversing motor 308 can change direction, each mechanical hand wrist joint reversing crank 309 is fixedly connected with the claw frame reversing motor 308 outside, each claw frame reversing motor 308 is rotatably connected with the claw frame 7 outside, each claw frame 7 is internally fixedly connected with a claw driving electric cylinder rod 701, the claw driving electric cylinder rod 701 is telescopic, thereby the electric cylinder telescopic rod ear seat 702 can be moved, each claw driving electric cylinder rod 701 two ends are fixedly connected with the electric cylinder telescopic rod ear seat 702, the electric cylinder telescopic rod ear seat 702 is made of alloy material, the electric cylinder telescopic rod ear seat 702 is used for positioning the reversing crank 708,Each of the electric pole telescopic rod ear seat 702 inside through the reversing shaft 710 rotationally connected with reversing crank 708, each of the reversing crank 708 with its end connecting rod 706 fixedly connected, each of the hook frame 7 outside through bolt fastening is connected with the connecting plate 709, the connecting plate 709 is made of alloy material, the connecting plate 709 is used for positioning the positioning rod 705, each of the connecting plate 709 both sides is fixed with positioning rod 705, the positioning rod 705 is made of alloy material, the positioning rod 705 is used for positioning the positioning ring 707, each of the positioning rod 705 both ends are fixed with positioning ring 707, the positioning ring 707 is made of alloy material, the positioning ring 707 is used for positioning the connecting rod 706, each of the positioning ring 707 with its inside connecting rod 706 is connected with sliding,

[0027] When using this equipment, the staff places multiple anchor nets 102 inside the anchor net bin 1, and further the central console 8 controls the multiple mobile crawler chassis systems 401 to work, thereby driving the entire equipment to move in the coal mine tunnel, and at the same time, the entire equipment can be reversed in the tunnel. At this time, the central console 8 controls the cutting head 6 to work, thereby cutting the coal seam at the left end of the tunnel, and further the central console 8 controls the blade on the scraper rack 5 to transport the debris to the scraper rack 5, and then the scraper conveyor 2 and the scraper conveyor tail 201 cooperate to transport the debris to the right end of the entire equipment, and further start the net laying and reinforcement work. At this time, the central console 8 controls the mobile rack 104 to work, thereby making the top of the anchor net bin 1 The hook frame 7 at the top is close to the anchor net 102, and further the central console 8 controls the hook on the top of the anchor net warehouse 1 to drive the electric cylinder rod 701 to extend, thereby driving the first electric lever telescopic rod ear seat 702 to move outward, thereby driving the first reversing crank 708 to rotate, thereby driving the first connecting rod 706 to rotate, thereby driving the first hook reversing head 703 to rotate, thereby driving the first rotating hook 704 to rotate to vertical, at this time the central console 8 controls the mobile frame 104 to extend, thereby making the first rotating hook 704 inserted into the first anchor net 102, at this time the central console 8 controls the first hook to drive the electric cylinder rod 701 to reset, thereby making the first rotating hook 704 rotate to horizontal, At this time, due to the action of the hook reversing head 703, the first anchor net 102 can be prevented from falling. Further, the central console 8 controls the first manipulator rotary base 303 to move along the first manipulator sliding platform 301, and further, the first rotary motor 305 can be used to reverse the first primary reducer 310, and then the first manipulator arm 3 can be rotated by the first primary reducer 310, and further, the first manipulator arm 302 can be rotated by the first arm motor 307, and further, the first manipulator wrist joint reversing crank 309 can be used to make the first hook frame reversing motor 308 rotate, so that the second hook frame 7 at the top of the first manipulator arm 3 is located at the first The bottom of the hook frame 7, and then the central console 8 controls the second hook driving electric cylinder rod 701 and the first hook driving electric cylinder rod 701 to cooperate so that the first anchor net 102 is clamped by the second rotating hook 704, and the first rotating hook 704 releases the first anchor net 102, and further the central console 8 controls the first manipulator arm 3, the first rotary motor 305, the first arm motor 306, the first arm motor 307, the first manipulator wrist joint reversing crank 309, the first hook frame reversing motor 308 and the second hook driving electric cylinder rod 701, so that the first anchor net 102 can be transported to the side of the lane, thereby completing the first net laying work, and so on.The rest of the roadway surface can be completed with the meshing work.

[0028] The working process of the present invention is as follows: when using the equipment, the staff places multiple anchor nets 102 inside the anchor net bin 1, and further the central console 8 controls the multiple mobile crawler chassis systems 401 to work, thereby driving the entire equipment to move in the coal mine tunnel, and at the same time, the entire equipment can be reversed in the tunnel. At this time, the central console 8 controls the cutting head 6 to work, thereby cutting the coal seam at the left end of the tunnel, and further the central console 8 controls the blade on the scraper frame 5 to transport the debris to the scraper frame 5, and then the scraper conveyor 2 and the scraper conveyor tail 201 cooperate to transport the debris to the right end of the entire equipment, and further start the net laying and reinforcement work. At this time, the central console 8 controls the mobile frame 104 to work, from The hook frame 7 on the top of the anchor net warehouse 1 is made close to the anchor net 102, and the central console 8 further controls the hook on the top of the anchor net warehouse 1 to drive the electric cylinder rod 701 to extend, thereby driving the first electric lever telescopic rod ear seat 702 to move outward, thereby driving the first reversing crank 708 to rotate, thereby driving the first connecting rod 706 to rotate, thereby driving the first hook reversing head 703 to rotate, thereby driving the first rotating hook 704 to rotate to vertical, at this time the central console 8 controls the mobile frame 104 to extend, thereby causing the first rotating hook 704 to insert into the first anchor net 102, and at this time the central console 8 controls the first hook to drive the electric cylinder rod 701 to reset, thereby causing the first rotating hook 7 04 rotates to the horizontal, at this time, due to the action of the hook claw reversing head 703, the first anchor net 102 can be prevented from falling, and further the central console 8 controls the first manipulator rotary base 303 to move along the first manipulator sliding platform 301, and further through the first rotary motor 305, the first first-stage reducer 310 can be reversed, and then through the first first-stage reducer 310, the first manipulator arm 3 can be rotated, and further through the first arm motor 307, the first manipulator arm 302 can be rotated, and further through the first mechanical wrist joint reversing crank 309, the first hook claw frame reversing motor 308 can be rotated, and then the second hook at the top of the first manipulator arm 3 can be rotated. The claw frame 7 is located at the bottom of the first hook frame 7, and then the central console 8 controls the second hook drive electric cylinder rod 701 and the first hook drive electric cylinder rod 701 to cooperate so that the first anchor net 102 is clamped by the second rotating hook 704, and the first rotating hook 704 releases the first anchor net 102, and further the central console 8 controls the first manipulator arm 3, the first rotary motor 305, the first arm motor 306, the first arm motor 307, the first manipulator wrist joint reversing crank 309, the first hook frame reversing motor 308 and the second hook drive electric cylinder rod 701, so that the first anchor net 102 can be transported to the side of the lane, thereby completing the first net laying work.The same process can be used to complete the paving work on the remaining roadways.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic mesh laying device for a coal mine tunnel excavation working face, characterized by: The invention comprises a tunnel boring machine body (4), a central console (8) is fixed on the top of the tunnel boring machine body (4), a plurality of manipulator sliding platforms (301) are also fixed on the top of the tunnel boring machine body (4), each manipulator sliding platform (301) is slidably connected to a manipulator rotary base (303) inside, a manipulator arm (3) is provided on the top of each manipulator rotary base (303), a manipulator arm (3) is provided on the top of each manipulator arm (3), a manipulator arm (302) is fixed on the top of each manipulator arm (302), a manipulator wrist joint (304) is rotatably connected to a hook frame reversing motor (308) on the outside of each manipulator wrist joint (304), a scraper conveyor (2) is also fixed on the top of the tunnel boring machine body (4), and a scraper conveyor (2) is fixed on the top of the scraper conveyor (2). The tail (201) of the scraper conveyor is provided with an anchor net bin (1) at the top of the tail (201) of the scraper conveyor. A hook frame (7) is provided at the top of the anchor net bin (1) and at the outer end of each hook frame reversing motor (308). An anchor net (102) is provided on the inner side of each hook frame (7). Two connecting rods (706) are provided on the outer side of each hook frame (7). A hook reversing head (703) is fixed at both ends of each connecting rod (706). A rotating hook (704) is fixed on the outer side of each hook reversing head (703). A scraper frame (5) is also fixed on the left side of the tunnel boring machine body (4). A cutting head (6) is provided on the top of the scraper frame (5) and is fixedly connected to the tunnel boring machine body (4). A mobile crawler chassis system (401) is provided at the front and rear ends of the tunnel boring machine body (4).

2. The automatic mesh laying device for coal mine tunnel excavation working face according to claim 1, characterized in that: The bottom of the anchor net bin (1) is fixedly connected to the tunnel boring machine body (4) via two fixing rods. A plurality of anchor nets (102) are provided inside the anchor net bin (1). A movable frame (104) is fixed to the right end of the anchor net bin (1). A main connecting frame (101) is fixed to the top of the movable frame (104). A secondary connecting frame (103) is fixed to the bottom of the left end of the main connecting frame (101). The secondary connecting frame (103) is fixedly connected to the hook frame (7) at the top of the anchor net bin (1).

3. The automatic mesh laying device for coal mine tunnel excavation working face according to claim 2, characterized in that: The top of each manipulator rotary base (303) is slidably connected to a primary reducer (310), the top of each primary reducer (310) is fixed with a rotary motor (305) and is rotationally connected to the manipulator rotary base (303) at its bottom, the top of each primary reducer (310) is also fixed with a secondary reducer (311), the top of each primary reducer (310) is also fixed with a large arm motor (306), each large arm motor (306) is rotationally connected to the manipulator large arm (3) on its outer side through a rotating shaft, and each manipulator large arm (3) is rotationally connected to the secondary reducer (311) on its inner side through a rotating shaft.

4. The automatic mesh laying device for coal mine tunnel excavation working face according to claim 3, characterized in that: A small arm motor (307) is also fixed to the top of the inner side of each manipulator arm (3), and each small arm motor (307) is rotationally connected to the manipulator small arm (302) on its outer side through a rotating shaft. Each manipulator wrist joint (304) is rotationally connected to a manipulator wrist joint reversing crank (309) on its inner side, and each manipulator wrist joint reversing crank (309) is fixedly connected to the hook frame reversing motor (308) on its outer side.

5. The automatic mesh laying device for coal mine tunnel excavation working face according to claim 4, characterized in that: Each hook frame reversing motor (308) is rotatably connected to the hook frame (7) outside thereof, a hook driving electric cylinder rod (701) is fixed inside each hook frame (7), and electric pole telescopic rod ear seats (702) are fixed at both ends of each hook driving electric cylinder rod (701), and a reversing crank (708) is rotatably connected inside each electric pole telescopic rod ear seat (702) via a reversing shaft (710), and each reversing crank (708) is fixedly connected to the connecting rod (706) at one end thereof, and a connecting plate (709) is fastened to the outside of each hook frame (7) via bolts, and positioning rods (705) are fixed on both sides of each connecting plate (709), and positioning rings (707) are fixed at both ends of each positioning rod (705), and each positioning ring (707) is slidably connected to the connecting rod (706) inside it.

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