Horseshoe stepping self-moving machine tail for fully mechanized coal mining face

Abstract

The utility model relates to the technical field of fully-mechanized coal mining equipment, and provides a horseshoe stepping self-moving machine tail for a fully-mechanized coal mining face, which comprises a machine tail main body sequentially comprising a head assembly, a middle assembly and a tail assembly from front to back, a head base and a tail base are both used for abutting against the ground, one end of a middle support is connected with a head support, and the other end of the middle support is connected with a tail support. The other end of the middle bracket is connected with the tail bracket; the left side and the right side of the machine tail body are each provided with a guide rail assembly. Each guide rail assembly comprises a connecting frame and two supporting guide rails. The height adjusting cylinder assembly comprises a height adjusting hydraulic cylinder, a wheel frame and a traveling wheel; pushing hydraulic cylinders are arranged on the left side and the right side of the tail body, one ends of the pushing hydraulic cylinders are hinged to the tail body, and the other ends of the pushing hydraulic cylinders are hinged to the supporting guide rails. According to the technical scheme, the machine tail body is divided into three sections, transportation and assembly are convenient, a stepping type self-moving mode is adopted, moving is more stable and faster, and coal mining productivity can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of comprehensive mining equipment, in particular to a horseshoe-stepping self-moving machine tail for a comprehensive mining working face. Background Art

[0002] When fully-mechanized mining is carried out in coal mines, hydraulic supports, coal mining equipment, coal transportation equipment, etc. are required. The coal is transported out using a conveyor belt, which needs to be used in conjunction with a self-moving tail. The self-moving tail is used to connect the head of the transfer machine and the coal transportation equipment to realize the transportation of mined coal. The self-moving tail needs to be able to move along with the movement of the coal mining equipment. As part of the transportation equipment, the self-moving tail needs to have a strong transportation capacity. The equipment is relatively bulky, and transportation and on-site assembly are time-consuming and labor-intensive. The traditional method of moving by relying on the head of the transfer machine as a fulcrum has many problems and requires repeated adjustments. It may even require coal mining to be suspended for adjustment, which seriously affects coal mining efficiency and reduces production capacity. This needs to be improved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a horseshoe-type self-moving tail machine for a comprehensive mining working face in view of the above-mentioned technical deficiencies. The tail machine body is divided into three sections for easy transportation and assembly. The walking self-moving method is adopted, which makes the movement more stable and fast, and is conducive to improving coal mining capacity.

[0004] The technical solution adopted by the utility model is: to provide a horseshoe stepping self-moving tail for a fully mechanized mining working face, comprising:

[0005] A tail body, the tail body includes a head assembly, a middle assembly and a tail assembly from front to back, the head assembly includes a head bracket and a head base, the head base is located at the lower end of the head bracket, the middle assembly includes a middle bracket, the tail assembly includes a tail bracket and a tail base, the tail base is located at the lower end of the tail bracket, the head base and the tail base are both used to abut against the ground, one end of the middle bracket is connected to the head bracket, and the other end of the middle bracket is connected to the tail bracket;

[0006] There are two guide rail assemblies, one of which is disposed on each of the left and right sides of the tail body, and the guide rail assembly comprises a connecting frame and two supporting guide rails, and both ends of the connecting frame are respectively connected to the two supporting guide rails by latches;

[0007] The height adjustment cylinder assembly has several groups. The height adjustment cylinder assembly is arranged on both sides of the head bracket and the left and right sides of the tail bracket. The height adjustment cylinder assembly includes a height adjustment hydraulic cylinder, a wheel frame and a running wheel. The height adjustment hydraulic cylinder is arranged on the tail body. The output end of the height adjustment hydraulic cylinder is arranged on the wheel frame for driving the wheel frame to rise and fall. The wheel frame is arranged on the support rail for sliding along the front and rear directions. The support rail follows the lifting of the wheel frame. The running wheel is arranged on the wheel frame for rotation. The running wheel is arranged on the support rail for rolling.

[0008] There are two push hydraulic cylinders, one of which is arranged on the left and right sides of the tail body. One end of the push hydraulic cylinder is hinged to the tail body, and the other end is hinged to the support guide rail.

[0009] To further optimize the technical solution, there is a gap between the connecting frame and the ground.

[0010] The technical solution is further optimized, and further includes a plug-in device, through which the middle bracket is connected to the head bracket, and the plug-in device includes:

[0011] There are two plug-in boards, which are respectively arranged on the left and right sides of the front end of the middle bracket;

[0012] There are two plug sockets, which are respectively arranged on the left and right sides of the rear end of the head support. The plug socket has a plug slot, and the end of the plug board is used for plugging and arranged in the plug slot. The plug socket also has;

[0013] A positioning pin is used to plug and connect the plug board and the socket after the plug board is plugged into the plug slot.

[0014] To further optimize the technical solution, the socket has a sleeve, the positioning pin is inserted into the sleeve, the sleeve side wall has a limiting hole, and the positioning pin has a through hole in the radial direction; the plug device also includes:

[0015] An anti-drop pin passes through the limiting hole and the through hole.

[0016] The technical solution is further optimized, and further includes a floating roller assembly, which is arranged at the front end of the head bracket, and the floating roller assembly includes:

[0017] A floating support, hinged to the end of the head support;

[0018] An angle adjustment hydraulic cylinder, one end of which is hinged to the end of the head support, and the other end of which is hinged to the floating support;

[0019] An upper roller is rotatably arranged on the upper side of the floating support;

[0020] The lower roller is rotatably arranged on the floating support and is located below the upper roller. The upper roller and the lower roller are arranged in parallel and are both used to support the conveyor belt.

[0021] Further optimizing the technical solution, it also includes a cleaner for cleaning the inner side of the conveyor belt, and the cleaner includes:

[0022] A tray is arranged at the end of the head bracket, and the front side of the tray has a mounting plate arranged obliquely relative to the conveying direction of the conveyor belt;

[0023] A scraper strip is detachably arranged on the mounting plate through a connecting piece, and the scraper strip is used to abut against the inner side surface of the conveyor belt.

[0024] To further optimize the technical solution, the middle assembly further includes:

[0025] There are several guide plates, which are symmetrically arranged on the left and right sides of the upper part of the middle bracket, and are arranged along the front-to-back direction.

[0026] To further optimize the technical solution, the tail assembly further includes:

[0027] The spiral drum is rotatably arranged on the tail bracket, and one end of the conveyor belt is wound around the spiral drum.

[0028] Further optimization of this technical solution also includes:

[0029] The traveling vehicle is slidably arranged on the upper ends of the middle support and the tail support along the front-rear direction, and the traveling vehicle is used to connect the transfer machine.

[0030] Further optimization of this technical solution also includes:

[0031] A control box is arranged on one side of the head support and is used to control the push hydraulic cylinder, the height adjustment hydraulic cylinder and the angle adjustment hydraulic cylinder.

[0032] The beneficial effects of the utility model are:

[0033] 1. The tail body is divided into three sections: the head assembly, the middle assembly and the tail assembly. After each section is assembled, they can be connected to form a complete body, which is more convenient for transportation and installation. In order to deal with the problem of uneven ground, the head base and the tail base are located on both sides of the tail body, and the other positions are relatively suspended, which is more conducive to the stable placement of the tail body on the ground.

[0034] 2. During self-movement, the hydraulic cylinder is adjusted to adjust the guide rail assembly and the tail body to touch the bottom and serve as fulcrums for each other. The hydraulic cylinder is pushed to achieve self-movement in steps. The movement is fast and stable, and there is no need to transfer the head of the machine as a fulcrum. In the guide rail assembly, the two support rails are located on both sides for ground support. The middle connecting frame is used to connect the two support rails for synchronous movement. The ground support on the front and rear sides is more suitable for uneven ground, the support is more stable, and the force application part of the hydraulic cylinder is easier to stably contact the ground. The setting of the middle connecting frame reduces the production difficulty of guide rail assemblies under a certain length, and at the same time has a longer service life. The segmented design makes transportation more convenient and avoids excessively long guide rails. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of the utility model viewed from above;

[0036] Figure 2 It is a bottom view structural schematic diagram of the utility model;

[0037] Figure 3 It is a front structural schematic diagram of the utility model;

[0038] Figure 4 for Figure 3 The schematic diagram of the local enlarged structure at position I in the middle;

[0039] Figure 5 It is a three-dimensional structural schematic diagram of the utility model;

[0040] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at II in the middle;

[0041] Figure 7 This is a schematic diagram of the tail assembly structure of the utility model;

[0042] Figure 8 It is a schematic diagram of the middle assembly structure of the utility model;

[0043] Fig. 9 This is a schematic diagram of the head assembly structure of the utility model;

[0044] Fig.10 This is a schematic diagram of the structure of the floating roller assembly of the utility model;

[0045] Explanation of the markings in the figure: 1. Tail body; 101. Head assembly; 1011. Head bracket; 1012. Head base; 102. Middle assembly; 1021. Middle bracket; 1022. Guide plate; 103. Tail assembly; 1031. Tail bracket; 1032. Tail base; 1033. Spiral drum; 2. Guide rail assembly; 201. Connecting frame; 202. Support guide rail; 3. Height adjustment cylinder assembly; 301. Height adjustment hydraulic cylinder; 302. Wheel Frame; 303, traveling wheel; 4, push hydraulic cylinder; 5, plug-in device; 501, plug-in plate; 502, plug-in seat; 5021, plug-in slot; 5022, sleeve; 503, positioning pin; 504, anti-drop pin; 6, floating roller assembly; 601, floating bracket; 602, angle adjustment hydraulic cylinder; 603, upper roller; 604, lower roller; 7, sweeper; 701, pallet; 702, mounting plate; 703, scraper; 8, traveling vehicle; 9, control box. DETAILED DESCRIPTION

[0046] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0048] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0049] In addition, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. The ground refers to the ground of the coal mining working area.

[0050] like Figure 1-10As shown, a horseshoe stepping self-moving tail for a fully mechanized mining working face comprises: a tail body 1, the tail body 1 comprises a head assembly 101, a middle assembly 102 and a tail assembly 103 from front to back, the head assembly 101 comprises a head support 1011 and a head base 1012, the head base 1012 is located at the lower end of the head support 1011, the middle assembly 102 comprises a middle support 1021, and the tail assembly 103 comprises a tail support 1031 and a tail base 1032. 032, the tail base 1032 is located at the lower end of the tail bracket 1031, the head base 1012 and the tail base 1032 are both used to abut against the ground, one end of the middle bracket 1021 is connected to the head bracket 1011, and the other end of the middle bracket 1021 is connected to the tail bracket 1031; the guide rail assembly 2 has two, and a guide rail assembly 2 is arranged on the left and right sides of the tail body 1, and the guide rail assembly 2 includes a connecting frame 201 and two supporting guide rails 202, and the connecting frame 20 1 are respectively connected to the two support rails 202 by bolts at both ends; the height adjustment cylinder assembly 3 has several groups, the left and right sides of the head bracket 1011 are provided with the height adjustment cylinder assembly 3, the left and right sides of the tail bracket 1031 are provided with the height adjustment cylinder assembly 3, the height adjustment cylinder assembly 3 includes a height adjustment hydraulic cylinder 301, a wheel frame 302 and a running wheel 303, the height adjustment hydraulic cylinder 301 is arranged on the tail body 1, the output end of the height adjustment hydraulic cylinder 301 is arranged on the wheel frame 302, and is used to drive the wheel frame 302 to rise and fall, the wheel frame 302 is slidingly arranged on the support rails 202 along the front and rear directions, the support rails 202 follow the wheel frame 302 to rise and fall, the running wheel 303 is rotatably arranged on the wheel frame 302, and the running wheel 303 is rollingly arranged on the support rails 202; there are two push hydraulic cylinders 4, one push hydraulic cylinder 4 is arranged on the left and right sides of the tail body 1, one end of the push hydraulic cylinder 4 is hinged to the tail body 1, and the other end is hinged to the support rail 202.

[0051] When in use, the tail body 1 is divided into three sections: front, middle and rear, including the head assembly 101, the middle assembly 102 and the tail assembly 103. The conveyor belt is wound around the tail assembly 103 (the conveyor belt is not shown in the drawings of this article). The three sections can be assembled separately and then connected in sequence to form an integrated device. The tail body 1 can be provided with transport rollers or pallets for support according to the needs of the conveyor belt circulation. Four height adjustment cylinder assemblies 3 can be provided, one height adjustment cylinder assembly 3 is provided on each of the left and right sides of the head bracket 1011, and one height adjustment cylinder assembly 3 is provided on each of the left and right sides of the tail bracket 1031, which are respectively opposite to the head base 1012 and the tail base 1032, so that the lifting operation is more stable.

[0052] When walking and self-moving, the two supporting rails 202 are in contact with the ground, and the output end of the height-adjusting hydraulic cylinder 301 is extended, and the supporting rails 202 are used as the ground contact support to lift the tail body 1 off the ground; then the output end of the push hydraulic cylinder 4 is extended to push the tail body 1 to move along the supporting rails 202, so that the tail body 1 moves a stroke, and at this time, the running wheels 303 roll on the supporting rails 202; after the tail body 1 has completed a stroke, the output end of the height-adjusting hydraulic cylinder 301 is operated to shrink, and the tail body 1 descends and contacts the ground, and then the output end of the height-adjusting hydraulic cylinder 301 uses the wheel frame 302 to lift the supporting rails 202 until it is off the ground to a certain height; then the output end of the push hydraulic cylinder 4 is operated to shrink, so that the supporting rails 202 move a stroke; finally, the output end of the height-adjusting hydraulic cylinder 301 is extended again, so that the supporting rails 202 fall to the ground, and the tail body 1 and the supporting rails 2022 touch the ground at the same time, thereby improving the support stability and preparing for the next step self-moving cycle.

[0053] The wheel frame 302 can be half-sheathed on the upper part of the support rail 202, and can slide forward and backward along the support rail 202, and can drive the support rail 202 to rise and fall. The two support rails 202 are connected by a connecting frame 201, and can achieve synchronous movement in the front and rear directions. The connecting frame 201 can be a steel frame and does not contact the ground. The height adjustment hydraulic cylinder 301 can have a sleeved mounting shell on the outside, and is installed on one side of the tail body 1 through the mounting shell.

[0054] Furthermore, there is a gap between the connecting frame 201 and the ground.

[0055] When in use, the guide rail assembly 2 touches the ground through the support rails 202 on the front and rear sides, and the middle connecting frame 201 plays a synchronous connection role, without touching the ground, which is conducive to reducing the front and rear pitching problem of the guide rail assembly 2 caused by uneven ground. When the middle ground is slightly higher, the support rails 202 on the front and rear sides can also stably touch the ground for support. At the same time, the guide rail assembly 2 is also divided into three sections, without a very long integrated piece, which is conducive to reducing the problem of self-deformation, and at the same time, it is more convenient to transport and produce, and the later maintenance cost is low.

[0056] Furthermore, it also includes a plug-in device 5, and the middle bracket 1021 is connected to the head bracket 1011 through the plug-in device 5. The plug-in device 5 includes: a plug-in board 501, which has two and is respectively arranged on the left and right sides of the front end of the middle bracket 1021; a plug-in socket 502, which has two and is respectively arranged on the left and right sides of the rear end of the head bracket 1011, and the plug-in socket 502 has a plug-in groove 5021. The end of the plug-in board 501 is used for plugging in the plug-in groove 5021, and the plug-in socket 502 also has; a positioning pin 503. After the plug-in board 501 is plugged into the plug-in groove 5021, the positioning pin 503 is used to plug and connect the plug-in board 501 and the plug-in socket 502.

[0057] The socket 502 has a sleeve 5022, the positioning pin 503 is inserted in the sleeve 5022, the side wall of the sleeve 5022 has a limiting hole, and the positioning pin 503 has a through hole along the radial direction; the plug device 5 also includes: an anti-drop pin 504, which passes through the limiting hole and the through hole.

[0058] When in use, the plug device 5 is used to connect the middle bracket 1021 and the head bracket 1011, and the middle bracket 1021 and the tail bracket 1031 can also be connected through the structure of the plug device 5. The plug board 501 can be welded to the side edge of the end of the middle bracket 1021, and the plug socket 502 is welded to the side edge of the end of the head bracket 1011. When the middle bracket 1021 and the head bracket 1011 are docked, the plug board 501 is plugged into the plug slot 5021, and then can be connected by plugging through the positioning pin 503. The positioning pin 503 passes through the plug socket 502 and the plug board 501, and can also pass through the side wall of the head bracket 1011 to improve the connection stability.

[0059] Hole structures can be provided on both the locating pin 503 and the sleeve 5022 of the socket 502 and located on the outer side of the socket 502. The anti-drop pin 504 can be used for plugging in, which can improve the connection stability between the locating pin 503 and the socket 502 and prevent them from dropping out.

[0060] Furthermore, it also includes a floating roller assembly 6, which is arranged at the front end of the head bracket 1011. The floating roller assembly 6 includes: a floating bracket 601, which is hinged to the end of the head bracket 1011; an angle adjustment hydraulic cylinder 602, one end of which is hinged to the end of the head bracket 1011, and the other end is hinged to the floating bracket 601; an upper roller 603, which is rotatably arranged on the upper side of the floating bracket 601; a lower roller 604, which is rotatably arranged on the floating bracket 601 and is located below the upper roller 603. The upper roller 603 and the lower roller 604 are arranged in parallel and are both used to support the conveyor belt.

[0061] It also includes a sweeper 7 for cleaning the inner side of the conveyor belt, and the sweeper 7 includes: a tray 701, which is arranged at the end of the head bracket 1011, and the front side of the tray 701 has a mounting plate 702 which is inclined relative to the transport direction of the conveyor belt; a scraper bar 703, which is detachably arranged on the mounting plate 702 through a connecting piece, and the scraper bar 703 is used to abut against the inner side of the conveyor belt.

[0062] When in use, the floating roller assembly 6 is located at the front side of the tail body 1, and can adjust the conveyor belt. The floating roller assembly 6 is installed at the front side of the head bracket 1011. The adjusting hydraulic cylinder can be set one on each side to drive the floating bracket 601 to swing up and down. The upper roller 603 and the lower roller 604 support the conveyor belt respectively. The upper side of the annular conveyor belt abuts against the upper roller 603, and the lower side abuts against the lower roller 604.

[0063] The lower roller 604 supports the conveyor belt moving from the lower side, and at the same time allows the lower conveyor belt to pass through the sweeper 7 from below. The sweeper 7 cleans the conveyor belt to reduce the impact of coal blocks attached to the surface on the transmission of the equipment. The scraper bar 703 can scrape and clean the upper surface of the conveyor belt on the lower side. The scraper bar 703 is set at an angle, and the scraped coal blocks can gradually move to the outside of the conveyor belt along the inclined angle and fall to the ground. The scraper bar 703 can also contact and clean the lower surface of the conveyor belt on the upper side, and the fallen coal blocks can fall into the tray 701. The connecting piece can be a bolt structure or a pin structure, and the detachable connection is convenient for replacing the scraper bar 703.

[0064] Furthermore, the middle assembly 102 also includes: a plurality of guide plates 1022 , and the guide plates 1022 are symmetrically arranged on the left and right sides of the upper part of the middle bracket 1021 , and the guide plates 1022 are arranged along the front-rear direction.

[0065] When in use, the upper portion of the middle assembly 102 has a guide plate 1022 , the guide plates 1022 are symmetrically arranged on the left and right sides, and the guide plates 1022 are inclined, and the left and right sides of the conveyor belt can move along the guide plates 1022 .

[0066] Furthermore, the tail assembly 103 further includes: a spiral drum 1033 rotatably disposed on the tail bracket 1031 , and one end of the conveyor belt is wound around the spiral drum 1033 .

[0067] When in use, the end of the conveyor belt is wound around the spiral drum 1033 to achieve circular rotation, and the other end of the conveyor belt can be located on other coal transporting equipment at a remote end.

[0068] Furthermore, it also includes: a traveling vehicle 8, which is slidably arranged along the front-rear direction at the upper end of the middle bracket 1021 and the upper end of the tail bracket 1031, and the traveling vehicle 8 is used to connect to the transfer machine.

[0069] When in use, the traveling vehicle 8 slides back and forth on the upper end of the tail bracket 1031 and the upper end of the middle bracket 1021. When the head of the transfer machine moves within a certain stroke, the traveling vehicle 8 follows the transfer machine mechanism within the stroke, and the tail body 1 does not need to move. When the traveling vehicle 8 moves to the end of the stroke boundary, the tail body 1 steps and moves by itself, so that the traveling vehicle 8 is reset to the beginning of the stroke.

[0070] Furthermore, it also includes: a control box 9, which is arranged on one side of the head support 1011 and is used to control the push hydraulic cylinder 4, the height adjustment hydraulic cylinder 301 and the angle adjustment hydraulic cylinder 602.

[0071] When in use, the pushing hydraulic cylinder 4, the height adjustment hydraulic cylinder 301 and the angle adjustment hydraulic cylinder 602 are all connected to the hydraulic control system to achieve extension and retraction. The hydraulic control system is set in the control box 9 and is manually controlled in an orderly manner. At the same time, a remote control can also be set for communication connection to achieve remote control within a certain range.

[0072] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A self-moving tail machine for fully mechanized mining working face, characterized in that: include: A tail body (1), wherein the tail body (1) comprises, from front to back, a head assembly (101), a middle assembly (102) and a tail assembly (103), wherein the head assembly (101) comprises a head bracket (1011) and a head base (1012), wherein the head base (1012) is located at the lower end of the head bracket (1011), the middle assembly (102) comprises a middle bracket (1021), and the tail assembly (103) comprises a head bracket (1011) and a head base (1012). 103) comprises a tail bracket (1031) and a tail base (1032), wherein the tail base (1032) is located at the lower end of the tail bracket (1031), the head base (1012) and the tail base (1032) are both used to abut against the ground, one end of the middle bracket (1021) is connected to the head bracket (1011), and the other end of the middle bracket (1021) is connected to the tail bracket (1031); There are two guide rail assemblies (2), one of which is disposed on each of the left and right sides of the tail body (1), the guide rail assembly (2) comprising a connecting frame (201) and two supporting guide rails (202), and the two ends of the connecting frame (201) are respectively connected to the two supporting guide rails (202) by means of latches; The height adjustment cylinder assembly (3) comprises a plurality of groups. The height adjustment cylinder assembly (3) is arranged on both the left and right sides of the head support (1011), and the height adjustment cylinder assembly (3) is arranged on both the left and right sides of the tail support (1031). The height adjustment cylinder assembly (3) comprises a height adjustment hydraulic cylinder (301), a wheel frame (302) and a running wheel (303). The height adjustment hydraulic cylinder (301) is arranged on the tail body (1), and the output end of the height adjustment hydraulic cylinder (301) is arranged on the wheel frame (302) for driving the wheel frame (302) to rise and fall. The wheel frame (302) is arranged on the support guide rail (202) in a sliding manner along the front-rear direction, and the support guide rail (202) rises and falls with the wheel frame (302). The running wheel (303) is arranged on the wheel frame (302) in a rotatable manner, and the running wheel (303) is arranged on the support guide rail (202) in a rolling manner. There are two push hydraulic cylinders (4), one of which is provided on each of the left and right sides of the tail body (1); one end of the push hydraulic cylinder (4) is hinged to the tail body (1), and the other end is hinged to the support guide rail (202).

2. The horse-step self-moving tail of a fully mechanized mining face according to claim 1 is characterized in that: There is a gap between the connecting frame (201) and the ground.

3. The horse-step self-moving tail for fully mechanized mining working face according to claim 1 is characterized in that: It also includes a plug-in device (5), the middle bracket (1021) is connected to the head bracket (1011) via the plug-in device (5), and the plug-in device (5) includes: There are two plug-in boards (501), which are respectively arranged on the left and right sides of the front end of the middle bracket (1021); There are two plug sockets (502), which are respectively arranged on the left and right sides of the rear end of the head support (1011), and the plug socket (502) has a plug slot (5021). The end of the plug board (501) is used for plugging and arranged in the plug slot (5021). The plug socket (502) also has; A positioning pin (503) is used to plug and connect the plug board (501) and the plug socket (502) after the plug board (501) is plugged into the plug slot (5021).

4. The horse-step self-moving tail for fully mechanized mining working face according to claim 3 is characterized in that: The socket (502) has a sleeve (5022), a positioning pin (503) is inserted into the sleeve (5022), a side wall of the sleeve (5022) has a limiting hole, and the positioning pin (503) has a through hole along the radial direction; the plug-in device (5) also includes: An anti-drop pin (504) passes through the limiting hole and the through hole.

5. The horse-step self-moving tail for fully mechanized mining face according to claim 1 is characterized in that: It also includes a floating roller assembly (6) arranged at the front end of the head support (1011), and the floating roller assembly (6) includes: A floating support (601) is hinged to the end of the head support (1011); An angle adjustment hydraulic cylinder (602), one end of which is hinged to the end of the head support (1011), and the other end of which is hinged to the floating support (601); An upper roller (603) is rotatably disposed on the upper side of the floating support (601); The lower roller (604) is rotatably arranged on the floating support (601) and is located below the upper roller (603). The upper roller (603) and the lower roller (604) are arranged in parallel and are both used to support the conveyor belt.

6. The horse-stepping self-moving tail of a fully mechanized mining face according to claim 5 is characterized in that: It also includes a cleaner (7) for cleaning the inner side of the conveyor belt, and the cleaner (7) includes: A tray (701) is arranged at the end of the head bracket (1011), and the front side of the tray (701) has a mounting plate (702) arranged obliquely relative to the transport direction of the conveyor belt; The scraper strip (703) is detachably arranged on the mounting plate (702) via a connecting piece, and the scraper strip (703) is used to abut against the inner side surface of the conveyor belt.

7. The horse-step self-moving tail for fully mechanized mining working face according to claim 1 is characterized in that: The middle assembly (102) further includes: There are a plurality of guide plates (1022), and the guide plates (1022) are symmetrically arranged on the left and right sides of the upper part of the middle bracket (1021), and the guide plates (1022) are arranged along the front-to-back direction.

8. The horse-step self-moving tail for fully mechanized mining working face according to claim 1 is characterized in that: The tail assembly (103) further includes: The spiral drum (1033) is rotatably arranged on the tail support (1031), and one end of the conveyor belt is wound around the spiral drum (1033).

9. The horse-step self-moving tail for fully mechanized mining working face according to claim 1 is characterized in that: Also includes: The traveling vehicle (8) is slidably arranged on the upper end of the middle support (1021) and the upper end of the tail support (1031) along the front-rear direction, and the traveling vehicle (8) is used to connect to the transfer machine.

10. The horse-step self-moving tail for fully mechanized mining working face according to claim 5, characterized in that: Also includes: A control box (9) is arranged on one side of the head support (1011) and is used to control the push hydraulic cylinder (4), the height adjustment hydraulic cylinder (301) and the angle adjustment hydraulic cylinder (602).

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