An efficient material collecting device for a heading machine and a method of use

Abstract

An efficient material collecting device of a tunneling machine and a use method thereof belong to the technical field of coal mine roadway tunneling equipment. The efficient material collecting device of the tunneling machine comprises a cutting part follow-up material collecting device, a positive material collecting shovel plate and a coal blocking mechanism. The cutting part follow-up material collecting device comprises a follow-up material collecting plate and an extensible material collecting plate. The extensible material collecting plate catches coal and rocks and makes the coal and rocks fall into the tunneling machine conveyor through the follow-up material collecting plate. The positive material collecting shovel plate comprises a lifting device, a swing shovel plate, a folding shovel plate and a scraper chain. The coal and rocks caught by the folding shovel plate are sent into the tunneling machine conveyor through the scraper chain. The coal blocking mechanism comprises a coal blocking plate and a coal blocking plate swing oil cylinder. The use method of the efficient material collecting device of the tunneling machine comprises cutting lower coal and rocks, cutting middle coal and rocks, cutting upper coal and rocks and cleaning ground coal and rocks. The efficient material collecting device of the tunneling machine and the use method thereof change passive material collecting into active material collecting, can improve the capacity and efficiency of material collecting of the tunneling machine and avoid material blocking caused by large coal blocks.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine roadway tunneling equipment, in particular to a high-efficiency material collecting device of a tunneling machine and a use method thereof. BACKGROUND

[0002] The device for collecting material of a conventional tunneling machine is a shovel plate. The shovel plate is limited in size and cannot be made very large, resulting in low efficiency of the conventional material collecting shovel plate when loading the coal blocks fallen on the ground. If the coal blocks fallen on the ground are not completely loaded into the shovel plate and transported away, the normal work of the subsequent equipment will be affected. Therefore, the existing tunneling machine often needs to move the machine body repeatedly to collect material multiple times to ensure sufficient material collection.

[0003] The existing tunneling machine usually adjusts the width of the shovel plate by increasing a shovel plate telescopic mechanism to increase the material collecting area and efficiency of the shovel plate. However, the width range that can be adjusted by the shovel plate is limited, and there will be a certain material collecting dead zone. In addition, there is often a large coal block blocking the tunneling machine conveyor channel, and the problem of large coal block jamming needs to be solved urgently. SUMMARY

[0004] In order to solve the technical problems existing in the prior art, the present application provides a high-efficiency material collecting device of a tunneling machine and a use method thereof, which changes passive material collection into active material collection, can improve the material collecting capacity and efficiency of the tunneling machine, and avoid large coal block jamming.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] A high-efficiency material collecting device of a tunneling machine, the tunneling machine comprising a tunneling machine body, a tunneling machine cutting part, a tunneling machine walking track and a tunneling machine conveyor;

[0007] The tunneling machine cutting part is provided with a cutting part follow-up material collecting device, the cutting part follow-up material collecting device comprising a follow-up material collecting plate arranged on the tunneling machine cutting part and a telescopic material collecting plate slidingly arranged on the follow-up material collecting plate, the telescopic material collecting plate catching the coal rock cut off by the tunneling machine cutting part and making the coal rock fall into the tunneling machine conveyor through the follow-up material collecting plate;

[0008] The tunneling machine body is provided with an active material collecting shovel plate, the active material collecting shovel plate comprising a lifting device hinged to the tunneling machine body, a swing shovel plate rotationally connected with the lifting device, and a folding shovel plate and a scraper chain arranged on the swing shovel plate, the coal rock caught by the folding shovel plate being sent into the tunneling machine conveyor through the scraper chain;

[0009] The tunneling machine walking track is provided with a coal blocking mechanism, the coal blocking mechanism comprising a coal blocking plate hinged to the tunneling machine walking track and a coal blocking plate swing oil cylinder connected with the coal blocking plate, the coal blocking plate swing oil cylinder controlling the swing of the coal blocking plate through extension and contraction.

[0010] Further, the tunneling machine body is further provided with a large lump coal rock grabbing device, the large lump coal rock grabbing device comprises a grabbing mechanical arm arranged on the tunneling machine body and a grabbing mechanical claw arranged on the grabbing mechanical arm, and the grabbing mechanical arm is slidably arranged on a sliding rail through a sliding base, and the sliding rail is fixedly arranged on the tunneling machine body.

[0011] Further, one end of the follow-up material collecting plate is hinged on the tunneling machine cutting part, the other end of the follow-up material collecting plate is connected with one end of a material collecting plate connecting rod, the other end of the material collecting plate connecting rod is slidably arranged in the inside of a material collecting plate connecting rod sleeve, and the other end of the material collecting plate connecting rod sleeve away from the material collecting plate connecting rod is rotationally connected on a cylinder of the tunneling machine cutting part.

[0012] Further, the telescopic material collecting plate is connected with a driving motor through a transmission structure, and the driving motor drives the telescopic material collecting plate to extend or retract along the follow-up material collecting plate through the transmission structure.

[0013] Further, the lifting device comprises a lifting cylinder hinged on the tunneling machine body and a connecting piece hinged on the lifting cylinder, one end of the connecting piece is rotationally connected with the tunneling machine body, the other end of the connecting piece is rotationally connected with the swing shovel plate, and a rotary drive is arranged at the connecting position of the connecting piece and the swing shovel plate, and the rotary drive drives the swing shovel plate to rotate.

[0014] Further, the folding shovel plate comprises a shovel plate body hinged with the swing shovel plate and a side panel fixedly arranged on the shovel plate body, the shovel plate body is further connected with the swing shovel plate through a folding cylinder, and the side panel is obliquely arranged on both sides of the shovel plate body.

[0015] The application further provides a use method of the efficient material collecting device of the tunneling machine, which comprises the following steps:

[0016] S1, cutting lower part coal rock:

[0017] The folding cylinder of the active material collecting shovel plate is retracted, so that the folding shovel plate is in the folding state; the tunneling machine cutting part swings to the lowermost position, the telescopic material collecting plate of the cutting part follow-up material collecting device is in the retracted state on the follow-up material collecting plate; the tunneling machine cutting part cuts the lower part coal rock, and the cut coal rock is sent into the tunneling machine conveyor through the swing shovel plate;

[0018] S2, cutting middle part coal rock:

[0019] After the lower part coal rock is cut, the tunneling machine cutting part swings upward; the telescopic material collecting plate of the cutting part follow-up material collecting device extends along the follow-up material collecting plate and is pressed against the coal wall, and the lifting device controls the swing shovel plate to be lifted; the tunneling machine cutting part cuts the coal rock, and the fallen coal rock enters the tunneling machine conveyor through the cutting part follow-up material collecting device; the coal rock not entering the cutting part follow-up material collecting device falls into the active material collecting shovel plate and is sent into the tunneling machine conveyor through the scraper chain.

[0020] S3, cutting upper coal rock:

[0021] After the middle coal rock cutting is completed, the cutting part of the heading machine is again swung upward, the folding cylinder of the active material collecting blade is extended to make the folding blade in an unfolded state and is pushed against the coal wall, and the lifting device controls the swinging blade to be lifted; the cutting part of the heading machine cuts the coal rock, and the falling coal rock enters the heading machine conveyor through the following material collecting device of the cutting part; the coal rock that does not enter the following material collecting device of the cutting part falls into the active material collecting blade and is sent into the heading machine conveyor through the scraper chain.

[0022] S4, cleaning the ground coal rock:

[0023] After the cutting is completed, the folding cylinder of the active material collecting blade is retracted to make the folding blade fold back, the lifting device controls the swinging blade to be lowered, the swinging blade swings to clean the coal rock on the ground, and the coal rock is sent into the heading machine conveyor through the scraper chain.

[0024] Further, when the cutting part of the heading machine swings left and right to cut the coal rock, the swinging blade swings left and right with the cutting part of the heading machine.

[0025] Further, the method for using the efficient material collecting device of the heading machine further includes the step of grabbing large coal rocks. When there are large coal rocks on the active material collecting blade and / or the following material collecting device of the cutting part that cannot enter the heading machine conveyor, the grabbing mechanical arm is moved to the front part of the heading machine, the large coal rocks are grabbed by the grabbing mechanical claw, and the large coal rocks are prevented from being stuck.

[0026] Advantages of the present application:

[0027] 1) The present application is a new material collecting device, which can make most of the coal cut by the heading machine not fall to the ground but be loaded onto the following material collecting device of the cutting part and the active material collecting blade, realizes active material collecting, avoids the passive material collecting process of the coal rock falling to the ground and then being collected by the blade, and improves the material collecting efficiency.

[0028] 2) The present application uses a large coal rock grabbing device to grab large coal rocks and transport the large coal rocks from above the heading machine to the rear part of the heading machine, avoiding the large coal rocks from being stuck.

[0029] 3) The blade of the active material collecting blade of the present application can follow the lifting and rotation of the cutting part of the heading machine to lift and rotate, so that most of the cut coal rock is transported away by the followed blade before falling to the ground. For a small part of the coal rock that falls to the ground, the coal rock can be shoveled into the blade by the rotating swinging blade. The coal rock that leaks from the following material collecting device of the cutting part or the coal rock that is not completely collected can be loaded into the blade through the foldable folding blade, realizing active material collecting.

[0030] 4) The coal baffle of the present application cooperates with the active material collecting shovel plate, can prevent coal and rock from running into places that the shovel plate cannot reach, and improves the material collecting effect;

[0031] 5) The present application installs a telescopic cutting part follow-up material collecting device under the cutting part of the heading machine, actively collects material, and improves the material collecting efficiency.

[0032] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural schematic diagram of the efficient material collecting device of the heading machine provided by the embodiment of the present application;

[0034] Figure 2 is a structural schematic diagram of the large coal and rock grabbing device provided by the embodiment of the present application;

[0035] Figure 3 is a structural schematic diagram of the cutting part follow-up material collecting device provided by the embodiment of the present application;

[0036] Figure 4 is a schematic diagram of the unfolded state of the active material collecting shovel plate provided by the embodiment of the present application;

[0037] Figure 5 is a schematic diagram of the contracted state of the active material collecting shovel plate provided by the embodiment of the present application;

[0038] Figure 6 is a structural schematic diagram of the swing shovel plate provided by the embodiment of the present application;

[0039] Figure 7 is a structural schematic diagram of the connecting piece provided by the embodiment of the present application;

[0040] Figure 8 is a structural schematic diagram of the coal blocking mechanism provided by the embodiment of the present application;

[0041] Figure 9 is a schematic diagram of the coal and rock under the cutting part of the efficient material collecting device of the heading machine provided by the embodiment of the present application;

[0042] Figure 10 is a schematic diagram of the coal and rock in the middle part of the cutting part of the efficient material collecting device of the heading machine provided by the embodiment of the present application;

[0043] Figure 11 is a schematic diagram of the coal and rock in the upper part of the cutting part of the efficient material collecting device of the heading machine provided by the embodiment of the present application;

[0044] Figure 12 is a schematic diagram of the coal and rock on the ground of the efficient material collecting device of the heading machine provided by the embodiment of the present application.

[0045] The reference signs in the drawings of the specification include:

[0046] 1- tunneling machine body, 2- tunneling machine cutting part, 3- tunneling machine walking track, 4- tunneling machine conveyor, 5- cutting part follow-up material collecting device, 6- follow-up material collecting plate, 7- telescopic material collecting plate, 8- active material collecting shovel plate, 9- swing shovel plate, 10- folding shovel plate, 11- scraper chain, 12- coal blocking plate, 13- coal blocking plate swing cylinder, 14- grabbing mechanical arm, 15- grabbing mechanical claw, 16- sliding base, 17- sliding rail, 18- material collecting plate connecting rod, 19- material collecting plate connecting rod sleeve, 20- tunneling machine cutting part cylinder, 21- driving motor, 22- lifting cylinder, 23- connecting piece, 24- rotary drive, 25- shovel plate body, 26- side plate, 27- folding cylinder, 28- large coal and rock grabbing device, 29- coal blocking mechanism. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0048] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] In the description of the present application, unless otherwise specified and limited, it should be noted that the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0050] In order to solve the problems existing in the prior art, such as Figures 1 to 12 As shown in the drawings, the present application provides a high-efficiency material collecting device for a tunneling machine, which comprises a tunneling machine body 1, a tunneling machine cutting part 2, a tunneling machine walking track 3 and a tunneling machine conveyor 4.

[0051] The tunneling machine cutting part 2 is provided with a cutting part follow-up material collecting device 5, which comprises a follow-up material collecting plate 6 arranged on the tunneling machine cutting part 2 and a telescopic material collecting plate 7 slidingly arranged on the follow-up material collecting plate 6. The telescopic material collecting plate 7 receives the coal and rock cut off by the tunneling machine cutting part 2 and makes the coal and rock fall into the tunneling machine conveyor 4 through the follow-up material collecting plate 6.

[0052] The tunneling machine body 1 is equipped with an active material receiving shovel 8. The active material receiving shovel 8 includes a lifting device hinged to the tunneling machine body 1, a swing shovel 9 rotatably connected to the lifting device, and a folding shovel 10 and a scraper chain 11 installed on the swing shovel shovel 9. The coal and rock caught by the folding shovel 10 are sent into the tunneling machine conveyor 4 through the scraper chain 11.

[0053] The tunneling machine's traveling track 3 is equipped with a coal-blocking mechanism 29. The coal-blocking mechanism 29 includes a coal-blocking plate 12 hinged to the tunneling machine's traveling track 3 and a coal-blocking plate swing cylinder 13 connected to the coal-blocking plate 12. The extension and retraction of the coal-blocking plate swing cylinder 13 controls the swing of the coal-blocking plate 12.

[0054] In this embodiment, drive motors are provided on both sides of the swing shovel 9. The drive motors are connected to sprockets, and the sprockets cooperate with the scraper chain 11. The drive motors drive the scraper chain 11 to move through the sprockets, moving the coal and rock at the front of the swing shovel 9 to the rear, and into the tunneling machine conveyor 4. Figure 8 As shown, the coal retaining plate 12 is hinged to the coal retaining plate 12 hinge lug fixed on the traveling track 3 of the tunneling machine. One end of the coal retaining plate swing cylinder 13 is hinged to the swing cylinder hinge lug fixed on the traveling track 3 of the tunneling machine, and the other end of the coal retaining plate swing cylinder 13 is hinged to the coal retaining plate 12. The swing of the coal retaining plate 12 is controlled by the extension and retraction of the coal retaining plate swing cylinder 13. When the swing shovel 9 shovels coal and rock, the coal retaining plate 12 and the swing shovel 9 cooperate to ensure that the coal and rock are completely shoveled onto the swing shovel 9, thereby improving the coal collection effect and preventing the coal and rock from falling off.

[0055] like Figure 1 and Figure 2 As shown, the tunneling machine body 1 is also equipped with a large coal and rock grabbing device 28. The large coal and rock grabbing device 28 includes a grabbing mechanical arm 14 and a grabbing mechanical claw 15 set on the grabbing mechanical arm 14. The grabbing mechanical arm 14 is slidably set on the sliding track 17 through the sliding base 16. The sliding track 17 is fixed on the tunneling machine body 1.

[0056] In this embodiment, the sliding base 16 can be slid along the sliding track 17 by a motor-driven gear rack structure. A gripping mechanical arm 14 is fixed on the sliding base 16, and a gripping mechanical claw 15 is fixed on the gripping mechanical arm 14. When there are large pieces of coal and rock on the cutting part follow-up material receiving device 5 and the active material receiving shovel 8 that cannot enter the conveyor inside the tunneling machine, the sliding base 16 slides on the sliding track 17, driving the gripping mechanical arm 14 to slide to the front of the tunneling machine. The gripping mechanical arm 14 drives the gripping mechanical claw 15 to grab the large pieces of coal and rock, and then moves along the sliding track 17 to the rear of the tunneling machine, placing the large pieces of coal and rock on the conveyor outside the tunneling machine to prevent the large pieces of coal and rock from getting stuck.

[0057] likeFigure 3 As shown, one end of the follower receiving plate 6 is hinged to the cutting section 2 of the tunneling machine, and the other end of the follower receiving plate 6 is connected to one end of the receiving plate connecting rod 18. The other end of the receiving plate connecting rod 18 is slidably disposed inside the receiving plate connecting rod sleeve 19. The end of the receiving plate connecting rod sleeve 19 away from the receiving plate connecting rod 18 is rotatably connected to the hydraulic cylinder 20 of the cutting section of the tunneling machine. In this embodiment, when the hydraulic cylinder 20 of the cutting section of the tunneling machine controls the movement of the cutting section 2, at the same time, the receiving plate connecting rod sleeve 19 and the receiving plate connecting rod 18 drive the follower receiving plate 6 to move with the cutting section 2 of the tunneling machine.

[0058] like Figure 3 As shown, the telescopic receiving plate 7 is connected to the drive motor 21 through a transmission structure. The drive motor 21 drives the telescopic receiving plate 7 to extend or retract along the follower receiving plate 6 through the transmission structure. In this embodiment, the telescopic receiving plate 7 is slidably installed on the follower receiving plate 6. A rack is provided on the side of the telescopic receiving plate 7, and the rack meshes with the gear at the output end of the drive motor 21. The drive motor 21 drives the telescopic receiving plate 7 to extend or retract along the follower receiving plate 6. In actual operation, the follower receiving device 5 of the cutting section is installed below the cutting section 2 of the tunneling machine. When the cutting section 2 of the tunneling machine cuts coal and rock, the drive motor 21 rotates, and through the gear and rack, drives the telescopic receiving plate 7 to slide on the follower receiving plate 6, so that the telescopic receiving plate 7 extends and pushes against the coal and rock. The coal and rock cut off by the cutting section 2 of the tunneling machine falls directly onto the telescopic receiving plate 7. The follower receiving plate 6 is inclined, and the coal and rock roll directly into the conveyor inside the tunneling machine through the follower receiving plate 6. A small portion of coal and rock fell below instead of being caught by the telescopic receiving plate 7 and was actively cleared by the active receiving shovel plate 8.

[0059] like Figures 4 to 7As shown, the lifting device includes a lifting cylinder 22 hinged to the tunneling machine body 1 and a connecting piece 23 hinged to the lifting cylinder 22, one end of the connecting piece 23 is rotatably connected to the tunneling machine body 1, the other end of the connecting piece 23 is rotatably connected to the swing blade 9, the lifting cylinder 22 is extended or retracted to lower or lift the swing blade 9; a rotary drive 24 is arranged at the connection between the connecting piece 23 and the swing blade 9, the rotary drive 24 drives the swing blade 9 to rotate. In this embodiment, one end of the lifting cylinder 22 is hinged to the tunneling machine body 1, the other end of the lifting cylinder 22 is hinged to the middle of the connecting piece 23, one end of the connecting piece 23 is hinged to the tunneling machine body 1, the lifting cylinder 22 is retracted, the connecting piece 23 drives the swing blade 9 to rise (with the hinged end of the connecting piece 23 to the tunneling machine body 1 as the axis); the lifting cylinder 22 is extended, the connecting piece 23 drives the swing blade 9 to lower; the other end of the connecting piece 23 is in a circular arc structure, the end of the swing blade 9 is in a circular arc structure matched with the connecting piece 23, the rotary drive 24 can be a hydraulic motor, the rotary drive 24 is fixedly arranged on the connecting piece 23, the output end of the rotary drive 24 is connected to the swing blade 9, the swing blade 9 rotates around the connecting piece 23 under the drive of the rotary drive 24.

[0060] As shown in Figure 4 and Figure 5 As shown, the folding blade 10 includes a blade body 25 hinged to the swing blade 9 and a side panel 26 fixedly arranged on the blade body 25, the blade body 25 is further connected to the swing blade 9 through a folding cylinder 27, and the side panel 26 is arranged obliquely on both sides of the blade body 25. In this embodiment, the folding blade 10 is installed on the front side of the swing blade 9, the blade body 25 is hinged to the swing blade 9 through a turnover hinged lug, one end of the folding cylinder 27 is hingedly connected to the swing blade 9, the other end of the folding cylinder 27 is hingedly connected to the blade body 25 through a cylinder hinged lug, the folding cylinder 27 is extended to control the folding blade 10 to turn out, the folding cylinder 27 is retracted to control the folding blade 10 to turn back, when the folding blade 10 is in the turned back state, the obliquely arranged side panel 26 forms a slope surface on both sides of the front part of the swing blade 9, when the swing blade 9 swings left and right, the coal and rock can be slid onto the swing blade 9, the swing blade 9 can realize sufficient material collection without moving the tunneling machine, and the problem that the existing tunneling machine needs to move the machine body repeatedly to collect material multiple times is solved. When the cutting part 2 of the tunneling machine cuts the coal and rock at a high place, the coal and rock not caught by the cutting part following material collection device 5 falls onto the swing blade 9 along the folding blade 10, and then is transported into the tunneling machine conveyor 4 by the scraper chain 11.

[0061] The application only protects the structure of the high-efficiency material collecting device of the heading machine and the use method of the high-efficiency material collecting device of the heading machine. In use, the working of the cutting part follow-up material collecting device 5, the active material collecting shovel plate 8, the coal blocking mechanism 29 and the large coal rock grabbing device 28 can be controlled by manual remote control of each oil cylinder and driving, or can be cooperated with the control system to realize automatic control. For example, the three-dimensional laser radar can be cooperated to realize real-time scanning of the ground through the three-dimensional laser radar, obtain the position of the coal rock falling on the ground, and then control the swinging shovel plate 9 to clean the coal rock. The active material collecting shovel plate 8 can also be controlled to work by manual operation to realize ground coal rock cleaning.

[0062] The application further provides a use method of the high-efficiency material collecting device of the heading machine, including the following steps:

[0063] S1, cutting lower coal rock:

[0064] As shown in Figure 9 , the folding oil cylinder 27 of the active material collecting shovel plate 8 is retracted to make the folding shovel plate 10 in a turned-back state; the heading machine cutting part 2 swings to the lowermost position, and the telescopic collecting plate 7 of the cutting part follow-up material collecting device 5 is in a retracted state on the follow-up collecting plate 6; the heading machine cutting part 2 cuts the lower coal rock, and the cut coal rock is sent into the heading machine conveyor 4 through the swinging shovel plate 9; when the heading machine cutting part 2 swings left and right to cut the coal rock, the swinging shovel plate 9 swings with the heading machine cutting part 2 left and right to facilitate catching the coal rock and actively collecting the material.

[0065] In the embodiment, the folding oil cylinder 27 is retracted to control the folding shovel plate 10 to turn back, so that the folding shovel plate 10 is in a turned-back state and avoids interference with the heading machine cutting part 2; the cutting part follow-up material collecting device 5 moves with the heading machine cutting part 2 and is in the lower part of the heading machine cutting part 2 under the driving of the collecting plate connecting rod 18.

[0066] S2, cutting middle coal rock:

[0067] As shown in Figure 10 , after the lower coal rock is cut, the heading machine cutting part 2 swings upward; the telescopic collecting plate 7 of the cutting part follow-up material collecting device 5 extends along the follow-up collecting plate 6 and stops on the coal wall, the lifting device controls the swinging shovel plate 9 to lift up; the heading machine cutting part 2 cuts the coal rock, and the falling coal rock enters the heading machine conveyor 4 through the cutting part follow-up material collecting device 5; the coal rock not entering the cutting part follow-up material collecting device 5 falls into the active material collecting shovel plate 8 and is sent into the heading machine conveyor 4 through the scraper chain 11.

[0068] In this embodiment, the receiving plate connecting sleeve 19 and the receiving plate connecting rod 18 drive the follower receiving plate 6 to move with the cutting section 2 of the tunneling machine, causing the follower receiving device 5 of the cutting section to unfold. The coal and rock cut by the cutting section 2 of the tunneling machine enters the follower receiving device 5 of the cutting section and then falls into the tunneling machine conveyor 4, completing the active material collection. The coal and rock that do not enter the follower receiving device 5 of the cutting section falls into the active receiving shovel 8, which swings left and right with the cutting section 2 of the tunneling machine, and is then fed into the tunneling machine conveyor 4 by the scraper chain 11.

[0069] S3, Cutting off the upper coal and rock:

[0070] like Figure 11 As shown, after the coal and rock in the middle section is cut off, the cutting section 2 of the tunneling machine swings up again, and the folding cylinder 27 of the active material receiving shovel 8 extends to make the folding shovel 10 unfolded and push against the coal wall. The lifting device controls the swinging shovel 9 to lift up. The cutting section 2 of the tunneling machine cuts the coal and rock, and the falling coal and rock enter the tunneling machine conveyor 4 through the cutting section follow-up material receiving device 5. The coal and rock that do not enter the cutting section follow-up material receiving device 5 fall into the active material receiving shovel 8 and are sent into the tunneling machine conveyor 4 through the scraper chain 11.

[0071] In this embodiment, the lifting device controls the swing shovel 9 to lift up to the set height again, and the coal and rock are completely collected by the cutting part follow-up material collection device 5 and the active material collection shovel 8.

[0072] S4. Clearing coal and rock from the ground:

[0073] like Figure 12 As shown, after the cutting is completed, the folding cylinder 27 of the active material receiving shovel 8 retracts, causing the folding shovel 10 to flip back. The lifting device controls the swing shovel 9 to descend. The swing shovel 9 swings to clean the coal and rock on the ground and sends it into the tunneling machine conveyor 4 through the scraper chain 11.

[0074] In this embodiment, most of the coal and rock cut in steps S1-S3 has been actively collected by the cutting unit's follow-up material collection device 5 and the active material collection shovel 8. The small portion of coal and rock that falls to the ground is collected by the swinging active material collection shovel 8, thus achieving active material collection. After the cutting unit 2 of the tunneling machine has completed one step, it moves the tunneling machine according to the cutting position requirements to cut the coal and rock at the next position.

[0075] In this embodiment, the method of using the high-efficiency material receiving device of the tunneling machine also includes the step of grabbing large pieces of coal and rock. When there are large pieces of coal and rock on the active material receiving shovel 8 and / or the cutting part follow-up material receiving device 5 that cannot enter the tunneling machine conveyor 4, the grabbing mechanical arm 14 moves to the front of the tunneling machine and grabs the large pieces of coal and rock by grabbing mechanical claw 15 to prevent the large pieces of coal and rock from getting stuck.

[0076] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A high-efficiency material collection device for a tunneling machine, the tunneling machine comprising a tunneling machine body, a tunneling machine cutting section, tunneling machine tracks, and a tunneling machine conveyor, characterized in that, The cutting section of the tunneling machine is equipped with a cutting section follow-up material collection device. The cutting section follow-up material collection device includes a follow-up material collection plate disposed on the cutting section of the tunneling machine and a telescopic material collection plate slidably disposed on the follow-up material collection plate. The telescopic material collection plate catches the coal and rock cut off by the cutting section of the tunneling machine and allows the coal and rock to fall into the tunneling machine conveyor through the follow-up material collection plate. The tunneling machine body is equipped with an active material receiving shovel. The active material receiving shovel includes a lifting device hinged to the tunneling machine body, a swing shovel rotatably connected to the lifting device, and a folding shovel and scraper chain installed on the swing shovel. The coal and rock caught by the folding shovel are sent into the tunneling machine conveyor through the scraper chain. The tunneling machine's traveling track is equipped with a coal-blocking mechanism, which includes a coal-blocking plate hinged to the tunneling machine's traveling track and a coal-blocking plate swing cylinder connected to the coal-blocking plate. The extension and retraction of the coal-blocking plate swing cylinder controls the swing of the coal-blocking plate. The lifting device includes a lifting cylinder hinged to the tunneling machine body and a connecting member hinged to the lifting cylinder. One end of the connecting member is rotatably connected to the tunneling machine body, and the other end of the connecting member is rotatably connected to the swing blade. The other end of the connecting member has an arc-shaped structure, and the end of the swing blade has an arc-shaped structure that cooperates with the connecting member. A rotary drive is provided at the connection between the connecting member and the swing blade, and the rotary drive drives the swing blade to rotate. The folding shovel includes a shovel body hinged to the swinging shovel and a side panel fixed to the shovel body. The shovel body is also connected to the swinging shovel via a folding hydraulic cylinder. The side panels are inclinedly arranged on both sides of the shovel body.

2. The high-efficiency material collection device for a tunneling machine according to claim 1, characterized in that, The tunneling machine body is also equipped with a large coal and rock grabbing device, which includes a grabbing mechanical arm set on the tunneling machine body and a grabbing mechanical claw set on the grabbing mechanical arm. The grabbing mechanical arm is slidably set on a sliding track via a sliding base, and the sliding track is fixed on the tunneling machine body.

3. The high-efficiency material collection device for a tunneling machine according to claim 1, characterized in that, One end of the follower receiving plate is hinged to the cutting part of the tunneling machine, and the other end of the follower receiving plate is connected to one end of the receiving plate connecting rod. The other end of the receiving plate connecting rod is slidably disposed inside the receiving plate connecting rod sleeve. The end of the receiving plate connecting rod sleeve away from the receiving plate connecting rod is rotatably connected to the oil cylinder of the cutting part of the tunneling machine.

4. The high-efficiency material collection device for a tunneling machine according to claim 1, characterized in that, The telescopic receiving plate is connected to the drive motor through a transmission structure. The drive motor drives the telescopic receiving plate to extend or retract along the follower receiving plate through the transmission structure.

5. The method of using the high-efficiency material collection device for a tunneling machine as described in claim 2, characterized in that, Includes the following steps: S1. Cutting off the lower coal and rock: The folding cylinder of the active material receiving shovel retracts, causing the folding shovel to be in a flipped-back state; the cutting section of the tunneling machine swings to the lowest position, and the telescopic material receiving plate of the following material receiving device of the cutting section is in a retracted state on the following material receiving plate; the cutting section of the tunneling machine cuts the lower coal and rock, and the cut coal and rock are sent into the tunneling machine conveyor through the swinging shovel. S2, Cutting through the central coal and rock: After the lower coal and rock are cut, the cutting section of the tunneling machine swings upward; the telescopic receiving plate of the following receiving device of the cutting section extends along the following receiving plate and hits the coal wall, and the lifting device controls the swing shovel to lift; the cutting section of the tunneling machine cuts the coal and rock, and the falling coal and rock enter the tunneling machine conveyor through the following receiving device of the cutting section; the coal and rock that do not enter the following receiving device of the cutting section fall into the active receiving shovel and are sent into the tunneling machine conveyor through the scraper chain; S3, Cutting off the upper coal and rock: After the coal and rock in the middle section is cut off, the cutting section of the tunneling machine swings up again. The folding cylinder of the active material receiving shovel extends, so that the folding shovel is in the unfolded state and pushes against the coal wall. The lifting device controls the swinging shovel to lift up. The cutting section of the tunneling machine cuts the coal and rock, and the falling coal and rock enter the tunneling machine conveyor through the cutting section's follow-up material receiving device. The coal and rock that do not enter the cutting section's follow-up material receiving device fall into the active material receiving shovel and are sent into the tunneling machine conveyor through the scraper chain. S4. Clearing coal and rock from the ground: After cutting is completed, the folding cylinder of the active receiving shovel retracts, causing the folding shovel to flip back. The lifting device controls the swinging shovel to descend, and the swinging shovel swings to clear the coal and rock on the ground, which is then sent into the tunneling machine's conveyor via the scraper chain.

6. The method of using the high-efficiency material collection device for a tunneling machine according to claim 5, characterized in that, When the cutting section of the tunneling machine swings left and right to cut coal and rock, the swinging shovel blade swings left and right along with the cutting section of the tunneling machine.

7. The method of using the high-efficiency material collection device for a tunneling machine according to claim 5, characterized in that, It also includes the step of grabbing large pieces of coal and rock. When there are large pieces of coal and rock that cannot enter the tunneling machine's conveyor on the active receiving shovel and / or the follow-up receiving device of the cutting section, the grabbing robotic arm moves to the front of the tunneling machine and grabs the large pieces of coal and rock with the grabbing robotic claw to prevent the large pieces of coal and rock from getting stuck.

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