A type of ultra-narrow tunneling tracked self-moving tail section

Abstract

This invention belongs to the field of coal mine roadway excavation technology, specifically relating to an ultra-narrow type tracked self-moving tail section for tunneling; it includes a tracked walking mechanism, a main frame, a front support section, a rear support section, a belt frame, a receiving section, and a power frame; the front support section, the rear support section, and the tracked walking mechanism are mounted on the main frame; the tracked walking mechanism is used to move the self-moving tail section after the front and rear support sections are retracted; the belt frame is mounted on the front and rear support sections and can be laterally offset; the receiving section is hinged to the front end of the belt frame; a lifting cylinder for the receiving section is connected between the receiving section and the belt frame to adjust the tilt angle of the receiving section; the rear support section is connected to the power frame for dragging the power frame; the conveying system composed of the receiving section, the belt frame, and the power frame is connected to a belt conveyor; it realizes integrated operation of traction, transfer, height adjustment, and lateral movement, solving the problems of material buffering and transfer, tail section equipment traction, height adjustment, and lateral movement during large-section single coal roadway excavation of the integrated tunneling and anchoring machine.

Description

Technical Field

[0001] This invention belongs to the field of coal mine roadway excavation technology, specifically relating to an ultra-narrow type crawler-type self-moving tail section for tunneling. Background Technology

[0002] With the continuous increase in mining speed and output of fully mechanized coal mining faces in my country, the speed of advance of longwall mining faces is constantly being refreshed, resulting in a surge in the amount of underground roadway excavation work in coal mines. The contradiction between mining and excavation is becoming increasingly prominent, making the development of rapid roadway excavation technology an inevitable trend.

[0003] The main way to achieve efficient tunneling operations is to adopt efficient tunneling equipment and advanced support technology. The roadheader-anchor unit utilizes a horizontal axis, full-section, one-pass tunneling cutting roller and anchor bolt support technology, enabling parallel operations of cutting, loading, and support. This improves tunneling efficiency and project quality, and has even created a safety miracle of "zero casualties" in underground coal mine tunneling. The roadheader-anchor unit has become standard equipment in modern mechanized coal mines in my country, with broad market prospects.

[0004] The development and improvement of roadheader units and their supporting equipment are ongoing, resulting in a variety of supporting equipment and methods, and multi-dimensional continuous transportation support systems. Currently, most supporting equipment in China includes a bolt transfer unit + belt transfer conveyor + stepping self-propelled tail section + belt conveyor. The combination of roadheaders and supporting equipment enables mechanized operations of cutting, loading, support, crushing, and transportation. However, in terms of the number and size of the supporting equipment, existing roadheader supporting systems are relatively complex and large, leading to poor adaptability, operational difficulties, high costs, long lengths, material transportation difficulties, and low safety.

[0005] In view of the above problems, and based on the geological conditions of coal mines and the requirements of field applications, we have developed an ultra-narrow type tracked self-moving tail section for tunneling. Summary of the Invention

[0006] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0007] To achieve the above objectives, the present invention provides an ultra-narrow type tracked self-moving tail section for tunneling, including a tracked walking mechanism, a main frame, a front support, a rear support, a belt frame, a material receiving part, and a power frame.

[0008] The front support, rear support, and tracked traveling mechanism are mounted on the main frame; the main frame is supported on the ground by the front support and rear support; the front support and rear support include a lifting mechanism and a lateral movement mechanism, the front support and rear support adjust the ground height of the main frame through the lifting mechanism, and adjust the lateral position of the main frame through the lateral movement mechanism; the tracked traveling mechanism is used to move the main frame after the front support and rear support are retracted.

[0009] The belt frame is set on the front support and the rear support and can be offset laterally. The receiving part is hinged to the front end of the belt frame. The receiving part is connected to the belt frame by the lifting cylinder of the receiving part to adjust the tilt angle of the receiving part.

[0010] The rear support unit is connected to the power frame for dragging the power frame; the material receiving unit, belt frame and power frame together form a conveyor system that connects to the belt conveyor.

[0011] Furthermore, the front end of the main frame is connected to the front support section, and the rear end is connected to the rear support section. The left and right sides of the main frame between the front support section and the rear support section are respectively connected to the track walking mechanism; the belt frame is placed on top of the front support section and the rear support section.

[0012] Furthermore, the front and rear support sections share the same structure, including a support frame, a height-adjusting cylinder, a height-adjusting cylinder guide rail, a cylinder upper connecting lug, sliding shoes, a skid, and a side-shifting cylinder. Height-adjusting cylinder guide rails are installed inside the sleeves on both sides of the support frame. A cylinder upper connecting lug is mounted on the upper end of the sleeve, connecting to the piston rod of the height-adjusting cylinder. The height-adjusting cylinder guide rail is connected to the cylinder barrel of the height-adjusting cylinder. The cylinder barrels of the two height-adjusting cylinders are connected to two sliding shoes at their lower ends. The two sliding shoes are installed in guide grooves at both ends of the skid, and each sliding shoe is connected to the skid via a side-shifting cylinder. The extension and retraction of the height-adjusting cylinder can adjust the height of the support frame, and the extension and retraction of the side-shifting cylinder can adjust the lateral position of the support frame. The top of the support frame is provided with guide grooves in the left and right directions.

[0013] The different structures of the front support and the rear support include the fact that the support frame of the rear support is provided with a power frame connecting lug.

[0014] Furthermore, the belt frame includes an intermediate frame, a front slip shoe, a rear slip shoe, a first trough idler, a first flat idler, and a pressure roller;

[0015] The upper layer of the intermediate frame has a first grooved idler roller, and the lower layer has a first flat idler roller. The pressure roller is arranged at the rear end of the lower belt of the belt frame. The front slipper and the rear slipper are respectively assembled in the guide grooves of the front support and the rear support. Two belt frame swing cylinders are connected between the front slipper and the front support. Two belt frame swing cylinders are connected between the rear slipper and the rear support. The lateral position of the belt frame can be adjusted by extending and retracting the belt frame swing cylinders.

[0016] Furthermore, the receiving section includes a receiving frame, a left hopper, a right hopper, a redirecting roller, a hopper pressing roller, a cleaner, and a roller telescopic cylinder; the top left and right sides of the receiving frame are fixedly connected to the left and right hoppers respectively, and the left and right hoppers form a feed inlet in the middle; a redirecting roller is slidably arranged between the front side plates of the receiving frame, and a roller telescopic cylinder is connected between the two ends of the redirecting roller and the outer side of the side plate; a cleaner and a hopper pressing roller are sequentially installed on the receiving frame at the tail of the redirecting roller.

[0017] Furthermore, the receiving section is equipped with a detachable buffer bed and guide plate at the lower end of the feed inlet formed by the left and right hoppers.

[0018] Furthermore, the power frame includes a sliding base, a belt support frame, a second trough idler, a second flat idler, a belt pressure roller, an integrated electrical control box, a hydraulic pump station, and a hydraulic oil tank;

[0019] The sliding base and the rear support are hinged together by connecting rods and pins. The base plate of the sliding base is equipped with an integrated electrical control box, a hydraulic pump station and a hydraulic oil tank. The belt support frame is installed at the top of the power frame. The second trough roller is installed on the upper layer of the belt support frame. The second flat roller is installed on the lower layer of the belt support frame. The belt pressure roller is installed on the raised side of the inclined roller of the second trough roller.

[0020] Furthermore, lighting lamps are installed on both sides of the upper rear end of the receiving section.

[0021] Furthermore, a lubricating oil tank is installed on the outside of the pressure roller and the hopper pressure roller.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] This invention provides an ultra-narrow tracked self-moving tail section for tunneling, suitable for connecting tunneling and anchoring units with retractable belt conveyors. It is equipped with its own electrical and hydraulic power and has functions such as self-moving tracks and adjustment of the conveyor belt at the tail of the retractable belt conveyor, ensuring smooth tunneling, transportation, and transfer. Moreover, the ultra-narrow width of the self-moving tail section enables mechanized material transportation and segmented parallel operation of anchoring work, reducing the labor intensity of workers, improving safety, and enabling rapid and safe tunneling when used with tunneling and anchoring units.

[0024] Adopting a modular design, the machine can be transported and assembled in sections, making installation, disassembly, and transportation convenient. It can achieve integrated operation of receiving, transferring, traction, height adjustment, and deviation adjustment. The equipment is highly integrated, with simplified configuration, strong applicability, and good safety. It solves the problems of soft floor, equipment traction, material transportation difficulties, and tunneling-anchoring imbalance when tunneling large-section single coal roadways with integrated tunneling and anchoring machines. It reduces the labor intensity of workers and increases the tunneling speed of integrated tunneling and anchoring machines, playing an important role in promoting manpower reduction, efficiency improvement, and safe production in coal mines.

[0025] It realizes integrated operation of traction, transfer, height adjustment and lateral movement, and solves the problems of material buffering and transfer, tail equipment traction and height adjustment and lateral movement when the tunneling and anchoring machine is excavating a large-section single-crush coal roadway. It reduces the labor intensity of workers, increases the roadway completion speed by 30%, and reduces the number of workers by 20%, which plays an important role in promoting the reduction of manpower and the improvement of efficiency and safe production in coal mines. Attached Figure Description

[0026] Figure 1 Overall structural diagram of the tracked self-moving tail section for ultra-narrow tunneling;

[0027] Figure 2 This is a structural diagram of the tracked walking mechanism;

[0028] Figure 3 This is a structural diagram of the front support section;

[0029] Figure 4 This is a structural diagram of the rear support section;

[0030] Figure 5 Here is a structural diagram of the belt conveyor frame;

[0031] Figure 6 This is a structural diagram of the material receiving section;

[0032] Figure 7 This is a structural diagram of the power frame.

[0033] In the diagram: 1-track travel mechanism; 101-track frame; 102-track chain; 103-traverse reducer; 104-drive sprocket; 105-hydraulic motor; 106-extension sprocket assembly and track rollers;

[0034] 2-Main rack;

[0035] 3-Front support section; 301-Front support frame; 302-Front height adjustment cylinder; 303-Front height adjustment cylinder guide rail; 304-Front cylinder upper connecting lug; 305-Front slip shoe; 306-Front skid; 307-Front side shift cylinder; 308-Front pin shaft;

[0036] 4-Rear support; 401-Rear support frame; 402-Rear height adjustment cylinder; 403-Rear height adjustment cylinder guide rail; 404-Rear cylinder upper connecting lug; 405-Rear sliding shoe; 406-Rear sliding skid; 407-Rear side shift cylinder; 408-Rear pin shaft;

[0037] 5-Belt frame; 501-Intermediate frame; 502-Front slipper; 503-Rear slipper; 504-First trough idler; 505-First flat idler; 506-Press roller;

[0038] 6-Receiving section; 601-Receiving rack; 602-Left hopper; 603-Right hopper; 604-Redirecting roller; 605-Hopper pressure roller; 606-Scrubber; 607-Roller telescopic cylinder; 608-Buffer bed; 609-Guide plate;

[0039] 7-Belt support swing cylinder; 8-Receiving section lifting cylinder;

[0040] 9-Power frame; 901-Sliding base; 902-Belt support frame; 903-Second trough roller; 904-Second flat roller; 905-Belt pressure roller; 906-Integrated electrical control box; 907-Hydraulic pump station; 908-Hydraulic oil tank;

[0041] 10-Lighting lamp; 11-Connecting rod; 12-Pin; 13-Lubricating oil tank. Detailed Implementation

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] like Figure 1 As shown: An ultra-narrow type tracked self-propelled tunneling tail section includes a tracked traveling mechanism 1, a main frame 2, a front support 3, a rear support 4, a belt frame 5, a receiving section 6, and a power frame 9. The front support 3, the rear support 4, and the tracked traveling mechanism 1 are mounted on the main frame 2. The main frame 2 is supported by the front support 3 and the rear support 4. The front support 3 and the rear support 4 include a lifting mechanism and a lateral shifting mechanism. The front support 3 and the rear support 4 adjust the ground height of the main frame 2 through the lifting mechanism and adjust the lateral shifting mechanism. The main frame 2 is adjusted laterally; the track walking mechanism 1 is used to move the main frame 2 after the front support 3 and the rear support 4 are retracted; the belt frame 5 is set on the front support 3 and the rear support 4 and can be offset laterally; the receiving part 6 is hinged to the front end of the belt frame 5; the receiving part 6 and the belt frame 5 are connected by the receiving part lifting cylinder 8 to adjust the tilt angle of the receiving part 6; the rear support 4 is connected to the power frame 9 to drag the power frame 9; the conveying system composed of the receiving part 6, the belt frame 5 and the power frame 9 is connected to the belt conveyor.

[0044] The front end of the main frame 2 is connected to the front support part 3 and the rear end is connected to the rear support part 4. The left and right sides of the main frame 2 between the front support part 3 and the rear support part 4 are respectively connected to the track walking mechanism 1; the belt frame 5 is placed on the top of the front support part 3 and the rear support part 4.

[0045] like Figure 2As shown: The tracked walking mechanism 1 includes a track frame 101, a track chain 102, a walking reducer 103, a drive sprocket 104, a hydraulic motor 105, a tensioning assembly 106, and a support roller 107. The hydraulic motor 105 is located inside the track frame 101. The output end of the hydraulic motor 105 is connected to the walking reducer 103. The output end of the walking reducer 103 is connected to the drive sprocket 104 to transmit power to the track chain 102. The drive sprocket 104, the track frame 101, the tensioning assembly 106, and the support roller 107 support the track chain 102 to complete the walking motion.

[0046] like Figure 3 As shown: The front support part 3 includes a front support frame 301, a front height adjustment cylinder 302, a front height adjustment cylinder guide rail 303, a front cylinder upper connecting lug 304, a front sliding shoe 305, a front sliding skid 306, and a front side shifting cylinder 307; the front height adjustment cylinder guide rail 303 is provided in the sleeves on both sides of the front support frame 301, and the front height adjustment cylinder guide rail 303 slides with the sleeve. The upper end of the sleeve is equipped with the front cylinder upper connecting lug 304, which is connected to the piston rod of the front height adjustment cylinder 302. The front height adjustment cylinder guide rail 303 is connected to the cylinder of the front height adjustment cylinder 302. The cylinders of the two front height adjustment cylinders 302 on both sides are connected to two front sliding shoes 305. The two front sliding shoes 305 are installed in the guide grooves at both ends of the front sliding skid 306. The sliding shoe 305 can slide back and forth in the corresponding guide groove. The two front sliding shoes 305 are each connected to the front sliding skid 306 through the front side shifting cylinder 307. The front side shifting cylinder 307, the front sliding skid 306, and the front sliding shoe 305 are connected by the front pin 308. The front height adjustment cylinder 302 can adjust the height of the front support frame 301 by extending and retracting. When the front height adjustment cylinder 302 extends and retracts, the front height adjustment cylinder guide rail 303 slides in the sleeve of the front support frame 301. The front side shifting cylinder 307 can adjust the lateral position of the front support frame 301 by extending and retracting. When the front side shifting cylinder 307 extends and retracts, the front sliding shoe 305 slides in the guide groove of the front sliding skid 306, and the front support frame 301 moves as a whole. The top of the front support frame 301 is provided with guide grooves in the left and right directions.

[0047] like Figure 4As shown: The rear support part 4 includes a rear support frame 401, a rear height adjustment cylinder 402, a rear height adjustment cylinder guide rail 403, a rear cylinder upper connecting lug 404, a rear sliding shoe 405, a rear sliding skid 406, and a rear lateral movement cylinder 407; the rear height adjustment cylinder guide rail 403 is provided in the sleeves on both sides of the rear support frame 401, and the rear height adjustment cylinder guide rail 403 slides in fit with the sleeve. The upper end of the sleeve is equipped with the rear cylinder upper connecting lug 404, which is connected to the piston rod of the rear height adjustment cylinder 402. The rear height adjustment cylinder guide rail 403 is connected to the cylinder of the rear height adjustment cylinder 402. The lower part of the cylinder of the two rear height adjustment cylinders 402 is connected to two rear sliding shoes 405. The two rear sliding shoes 405 are installed in the guide grooves at both ends of the rear sliding skid 406. The sliding shoe 405 can slide back and forth in the corresponding guide groove. Each of the two rear sliding shoes 405 is connected to the rear skid 406 via a rear side-shifting cylinder 407. The rear side-shifting cylinder 407, the rear skid 406, and the rear sliding shoe 405 are connected by a rear pin 408. The extension and retraction of the rear height adjustment cylinder 402 can adjust the height of the rear support frame 401. When the rear height adjustment cylinder 402 extends and retracts, the rear height adjustment cylinder guide rail 403 slides within the sleeve of the rear support frame 401. The extension and retraction of the rear side-shifting cylinder 407 can adjust the lateral position of the rear support frame 401. When the rear side-shifting cylinder 407 extends and retracts, the rear sliding shoe 405 slides in the guide groove of the rear skid 406, and the rear support frame 401 moves as a whole. The top of the rear support frame 401 is provided with guide grooves in the left and right directions. The rear support frame 401 of the rear support part 4 is provided with a power frame connecting lug.

[0048] like Figure 5 As shown: The belt frame 5 includes an intermediate frame 501, a front slipper 502, a rear slipper 503, a first trough idler 504, a first flat idler 505, and a belt pressing roller 506;

[0049] The upper layer of the intermediate frame 501 has a first grooved idler roller 504 and the lower layer has a first flat idler roller 505. The first grooved idler roller 504 is installed in the idler roller slot of the intermediate frame 501 in a V-shape arrangement; the first flat idler roller 505 is installed in the flat idler roller slot of the intermediate frame 501; the belt pressing roller 506 is arranged at the rear end of the lower belt of the belt frame 5.

[0050] The front sliding shoe 502 and the rear sliding shoe 503 are respectively installed in the guide grooves of the front support part 3 and the rear support part 4. Two belt frame swing cylinders 7 are connected between the front sliding shoe 502 and the front support part 3, and two belt frame swing cylinders 7 are connected between the rear sliding shoe 503 and the rear support part 4. The front sliding shoe 502 and the rear sliding shoe 503 can slide in the guide grooves of the front support part 3 and the rear support part 4 respectively under the push of their respective belt frame swing cylinders 7. The lateral position of the belt frame 5 can be adjusted by the extension and retraction of the belt frame swing cylinders 7, thereby adjusting the positional relationship between the self-moving tail and the belt conveyor to ensure the safe operation of the entire belt.

[0051] like Figure 6As shown: The receiving section 6 includes a receiving frame 601, a left hopper 602, a right hopper 603, a redirecting roller 604, a hopper pressing roller 605, a cleaner 606, and a roller telescopic cylinder 607. The top left and right sides of the receiving frame 601 are fixedly connected to the left hopper 602 and the right hopper 603 with bolts, and the left hopper 602 and the right hopper 603 form a feed inlet in the middle. The redirecting roller 604 is slidably arranged between the front side plates of the receiving frame 601. The roller telescopic cylinder 607 is connected between the two ends of the redirecting roller 604 and the outer side of the side plate. The cleaner 606 and the hopper pressing roller 605 are sequentially installed on the receiving frame 601 at the tail of the redirecting roller 604. The cleaner 606 is used to scrape off the material on the lower belt to prevent the material from being rolled into the roller.

[0052] The receiving section 6 is equipped with a detachable buffer bed 608 and a guide plate 609 at the lower end of the feed inlet formed by the left hopper 602 and the right hopper 603. The buffer bed 608 is a polyurethane strip. The buffer bed 608 prevents the falling coal from impacting the upper conveyor belt, and the guide plate 609 guides the falling coal onto the upper conveyor belt.

[0053] like Figure 7 As shown: The power frame 9 includes a sliding base 901, a belt support frame 902, a second trough idler 903, a second flat idler 904, a belt pressure roller 905, a comprehensive electrical control box 906, a hydraulic pump station 907, and a hydraulic oil tank 908. The sliding base 901 is hinged to the rear support part 4 via a connecting rod 11 and a pin 12. The power frame 9 can move forward together with the tracked walking mechanism 1. The comprehensive electrical control box 906, the hydraulic pump station 907, and the hydraulic oil tank 908 are mounted on the bottom plate of the sliding base 901. The comprehensive electrical control box 906, the hydraulic pump station 907, and the hydraulic oil tank 908 are used for control. The system provides power to the tracked self-moving tail section; the belt support frame 902 is installed at the top of the power frame 9, the second trough idler 903 is installed on the upper layer of the belt support frame 902; the second flat idler 904 is installed on the lower layer of the belt support frame 902; the second trough idler 903 is installed in the idler slot of the belt support frame 902 in a V-shape arrangement; the second flat idler 904 is installed in the flat idler slot of the belt support frame 902; the belt pressure roller 905 is installed on the raised side of the inclined idler of the second trough idler 903, and the belt pressure roller 905 presses against the edge of the upper belt to prevent the upper belt from running off-center.

[0054] Lighting lamps 10 are provided on both sides of the upper rear end of the receiving section 6 to provide illumination during operation.

[0055] A lubricating oil tank 13 is installed on the outer side of the pressure roller 506 and the hopper pressure roller 605.

[0056] The main frame 2, front support 3, rear support 4, material receiving part 6 and power frame 9 are connected by pins. The whole machine is modularly designed and can be transported and assembled separately, making installation, disassembly and transportation convenient.

[0057] During production, the tracked self-propelled tail pulls the reversing roller end of the telescopic belt conveyor and closely follows the tunneling and anchoring unit. The receiving section 6 receives and buffers the materials transported by the tunneling and anchoring unit, and then transfers them to the belt conveyor behind. At the same time, it can also pull the tail end of the belt conveyor into a new work position.

[0058] The lower belt of the belt conveyor passes sequentially through the second flat idler 904 of the power frame 9, the belt pressing roller 506 of the belt frame 5, the first flat idler 505, the hopper belt pressing roller 605 of the receiving section 6, passes under the cleaner 606, and then goes around the redirecting roller 604 to become the upper belt. The upper belt passes sequentially over the buffer bed 608, the first trough idler 504 of the belt frame 5, the second trough idler 903 of the power frame 9, and then the upper idler group of the belt conveyor.

[0059] Experiments show that this invention achieves integrated operation of receiving, transferring, and traction, solving problems such as soft floor and equipment traction during large-section single coal roadway excavation with the integrated tunneling and anchoring machine. Furthermore, due to the ultra-narrow width of the self-moving tail section of this invention, material transport vehicles can directly reach the rear of the tunneling and anchoring machine, solving the difficulties of manual material transport, reducing the labor intensity of workers and the number of material transport personnel, shortening auxiliary material transport time, and increasing the roadway formation speed of the tunneling and anchoring machine group. Moreover, under roadway conditions permitting, the narrow-type anchor drilling rig can enter the rear of the tunneling and anchoring machine group to perform additional anchor bolt and cable installation, achieving parallel segmented anchoring operations, further increasing the excavation speed. The roadway formation speed is increased by 30%, and the number of workers is reduced by 20%, playing a significant role in promoting efficiency improvement and safe production in coal mines.

[0060] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A type of ultra-narrow tracked self-moving tail section for tunneling, characterized in that: It includes a tracked walking mechanism (1), a main frame (2), a front support (3), a rear support (4), a belt frame (5), a receiving part (6), and a power frame (9). The front support (3), the rear support (4) and the tracked walking mechanism (1) are mounted on the main frame (2); the main frame (2) is supported by the front support (3) and the rear support (4); the front support (3) and the rear support (4) include a lifting mechanism and a lateral movement mechanism. The front support (3) and the rear support (4) adjust the ground height of the main frame (2) through the lifting mechanism and adjust the lateral position of the main frame (2) through the lateral movement mechanism; the tracked walking mechanism (1) is used to move the main frame (2) after the front support (3) and the rear support (4) are retracted. The belt frame (5) is set on the front support (3) and the rear support (4) and can be offset laterally. The receiving part (6) is hinged to the front end of the belt frame (5). The receiving part (6) and the belt frame (5) are connected by the receiving part lifting cylinder (8) to adjust the tilt angle of the receiving part (6). The rear support (4) is connected to the power frame (9) for dragging the power frame (9); the conveying system composed of the receiving part (6), the belt frame (5) and the power frame (9) is connected to the belt conveyor; The front end of the main frame (2) is connected to the front support part (3) and the rear end is connected to the rear support part (4). The left and right sides of the main frame (2) between the front support part (3) and the rear support part (4) are respectively connected to the track walking mechanism (1); the belt frame (5) is placed on the top of the front support part (3) and the rear support part (4); The front support (3) and rear support (4) have the same structure, including a support frame, a height adjustment cylinder, a height adjustment cylinder guide rail, a cylinder upper connecting lug, a sliding shoe, a sliding skid, and a side-shifting cylinder; the sleeves on both sides of the support frame are provided with height adjustment cylinder guide rails, the upper end of the sleeve is equipped with a cylinder upper connecting lug, the cylinder upper connecting lug is connected to the piston rod of the height adjustment cylinder, the height adjustment cylinder guide rail is connected to the cylinder barrel of the height adjustment cylinder, the cylinder barrels of the two side height adjustment cylinders are connected to two sliding shoes at the bottom, the two sliding shoes are installed in the guide grooves at both ends of the sliding skid, and each of the two sliding shoes is connected to the sliding skid through a side-shifting cylinder; the height adjustment cylinder can adjust the height of the support frame by extending and retracting, and the side-shifting cylinder can adjust the lateral position of the support frame by extending and retracting; the top of the support frame is provided with guide grooves in the left and right directions; The different structures of the front support part (3) and the rear support part (4) include that the support frame of the rear support part (4) is provided with a power frame connecting lug; The belt frame (5) includes an intermediate frame (501), a front slipper (502), a rear slipper (503), a first trough idler (504), a first flat idler (505), and a belt pressing roller (506). The upper layer of the intermediate frame (501) is provided with a first grooved roller (504), and the lower layer is provided with a first flat roller (505). The pressure roller (506) is arranged at the rear end of the lower belt of the belt frame (5). The front slipper (502) and the rear slipper (503) are respectively assembled in the guide grooves of the front support part (3) and the rear support part (4). Two belt frame swing cylinders (7) are connected between the front slipper (502) and the front support part (3). Two belt frame swing cylinders (7) are connected between the rear slipper (503) and the rear support part (4). The lateral position of the belt frame (5) can be adjusted by the extension and retraction of the belt frame swing cylinders (7).

2. The ultra-narrow type tracked self-moving tail section for tunneling as described in claim 1, characterized in that: The receiving section (6) includes a receiving frame (601), a left hopper (602), a right hopper (603), a redirecting roller (604), a hopper pressing roller (605), a cleaner (606), and a roller telescopic cylinder (607). The top left and right sides of the receiving frame (601) are fixedly connected to the left hopper (602) and the right hopper (603) respectively, and the left hopper (602) and the right hopper (603) form a feed inlet in the middle. A redirecting roller (604) is slidably arranged between the front side plates of the receiving frame (601). A roller telescopic cylinder (607) is connected between the two ends of the redirecting roller (604) and the outer side of the side plate. A cleaner (606) and a hopper pressing roller (605) are sequentially installed on the receiving frame (601) at the tail of the redirecting roller (604).

3. The ultra-narrow type tracked self-moving tail section for tunneling as described in claim 2, characterized in that: The receiving section (6) is equipped with a detachable buffer bed (608) and a guide plate (609) at the lower end of the feed inlet formed by the left hopper (602) and the right hopper (603).

4. The ultra-narrow type tracked self-moving tail section for tunneling as described in claim 2, characterized in that: The power frame (9) includes a sliding base (901), a belt support frame (902), a second trough roller (903), a second flat roller (904), a belt pressure roller (905), an integrated electrical control box (906), a hydraulic pump station (907), and a hydraulic oil tank (908). The sliding base (901) and the rear support (4) are hinged together by a connecting rod (11) and a pin (12). The base plate of the sliding base (901) is equipped with an integrated electrical control box (906), a hydraulic pump station (907) and a hydraulic oil tank (908). The belt support frame (902) is installed at the top of the power frame (9). The second trough roller (903) is installed on the upper layer of the belt support frame (902). The second flat roller (904) is installed on the lower layer of the belt support frame (902). The belt pressure roller (905) is installed on the raised side of the inclined roller of the second trough roller (903).

5. The ultra-narrow type tracked self-moving tail section for tunneling as described in claim 2, characterized in that: Lighting lamps (10) are provided on both sides of the upper rear end of the receiving part (6).

6. The ultra-narrow type tracked self-moving tail section for tunneling as described in claim 2, characterized in that: The outer sides of the pressing roller (506) and the hopper pressing roller (605) are equipped with lubricating oil tanks (13).

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