Intelligent following type multi-degree-of-freedom cable dragging device for working face of ultra-thin coal seam

Abstract

The invention discloses an intelligent following type multi-degree-of-freedom cable dragging device for an ultra-thin coal seam working face. The intelligent following type multi-degree-of-freedom cable dragging device comprises a dragging supporting structure and a dragging traction mechanism arranged on the dragging supporting structure. The dragging supporting structure comprises a cable containing groove with an upward opening, and two parallel dovetail grooves are formed in the bottom in the cable containing groove. The dragging traction mechanism comprises a cable traction sliding block connected into the cable containing groove in a sliding fit mode, a traction connecting plate is fixedly connected to the cable traction sliding block, a traction supporting shaft extending vertically is fixedly connected to the traction connecting plate, and a traction guide rotating ring is connected to the traction supporting shaft in a rotating fit mode. A cable drag chain is dragged and dragged on the traction guide rotating ring; the flat distributed anti-deflection cable clamp reversing mechanism is adopted, the cable clamp is changed from vertical distribution to horizontal distribution, the horizontal layout of the overall structure is simple and compact, the overall height is low, and the passing height requirement of a coal mining machine on the working face of an extremely thin coal seam can be well met.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining mechanical equipment, and in particular to an intelligent follow-up multi-degree-of-freedom cable dragging device for an extremely thin coal seam working face. Background Art

[0002] Ultra-thin coal seams refer to coal seams with a thickness of less than 0.8m in underground mining. They are widely distributed in my country, with large reserves and good coal quality. The recoverable resources of medium-thick coal seams in some mining areas are becoming increasingly exhausted, and the mining of ultra-thin coal seams has become a necessary way to continue production in mining areas. However, the current mining of ultra-thin coal seams faces the problems of narrow operating space and a serious shortage of complete sets of technical equipment for intelligent mining of ultra-thin coal seams.

[0003] Coal mining machines for ultra-thin coal seams have currently realized technologies such as automatic following, program-controlled coal mining, and automatic control of coal dropping, but the technology of cable dragging for coal mining machines has not been effectively solved. During the coal cutting process, the shearer cable moves with the reciprocating motion of the coal mining machine, and the shearer cable will bend multiple times, that is, the cable is superimposed multiple times in the vertical direction, resulting in excessive bending, twisting, flipping and falling of the cable. In addition, the working space of the ultra-thin coal seam is small, and the height of the coal mining machine is very limited, which can easily cause cable extrusion, wear, leakage and other faults. If the shearer cable is not adjusted in time, it will hinder the production process, prolong production time, and reduce the service life of the coal mining machine cable, increasing operating costs.

[0004] To solve this problem, some people have proposed an automatic cable towing device for coal mining machines. However, the existing cable towing device for coal mining machines is only applicable to medium-thick coal seam working faces, and cannot pass smoothly under the coal mining machine passing height allowed by the working face of extremely thin coal seams.

[0005] In the related art, the cable dragging device of the coal mining machine is arranged in the cable trough, and the cable trough is a U-shaped trough with an upper opening. During the coal cutting process of the coal mining machine, gangue and loose coal can easily fall onto the cable dragging track. When a large amount of loose coal accumulates, it hinders the normal movement of the towing trolley and even jams the cable clamp, affecting the normal coal cutting of the coal mining machine. Therefore, regular maintenance is required, which not only reduces the coal mining efficiency, but also increases the maintenance cost. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent follow-up multi-degree-of-freedom cable dragging device for an extremely thin coal seam working face, which can well meet the coal mining conditions of the extremely thin coal seam working face.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An intelligent follow-up multi-degree-of-freedom cable dragging device for an extremely thin coal seam working face, comprising a dragging support structure, and a dragging and traction mechanism arranged on the dragging support structure;

[0009] The towing support structure includes a cable receiving groove opening upward;

[0010] The dragging and traction mechanism comprises a cable traction slider which is slidably connected in the cable receiving groove, a traction connection plate is fixedly connected to the cable traction slider, a vertically extending traction support shaft is fixedly connected to the traction connection plate, and a traction guide swivel is rotatably connected to the traction support shaft;

[0011] There is a cable drag chain on the towing guide swivel;

[0012] The bottom of the cable pulling slider is connected in the cable containing groove by sliding fit through a sliding groove slider mechanism.

[0013] Preferably, the slide block mechanism comprises two mutually parallel dovetail grooves arranged at the bottom of the cable receiving groove, a dovetail groove matching slider fixedly arranged at the bottom of the cable pulling slider, and the dovetail groove matching slider is slidably connected in the dovetail groove;

[0014] The bottom of the cable receiving groove is provided with a vertically penetrating cinder leakage hole, and a plurality of cinder leakage holes are arranged along the extension direction of the cable receiving groove;

[0015] As a preferred solution, the shapes and sizes of the multiple coal slag leakage holes are consistent, and the cross-sectional area is 200cm 2 ;

[0016] As another preferred solution, the cross-sectional areas of the plurality of coal slag leakage holes are periodically and gradually increased and periodically and gradually decreased in sequence;

[0017] And the cross-sectional area of ​​the cinder leak hole is 100cm 2 ~300cm 2 The ratio between the larger cross-sectional area and the smaller cross-sectional area of ​​two adjacent coal slag leakage holes is 110% to 130%.

[0018] Description: The slag leakage holes are provided to facilitate the leakage of broken coal pieces scattered in the cable containing trough. The slag leakage holes with periodic gradual cross-sectional areas can accommodate broken coal pieces of various sizes while maintaining the overall strength of the cable containing trough.

[0019] Preferably, a drag chain support mechanism is fixedly provided in the cable receiving groove, and the drag chain support mechanism includes a plurality of drag chain support plates, and the bottom of the drag chain support plates is fixedly connected to the bottom of the cable receiving groove through a plurality of drag chain support columns;

[0020] A plurality of drag chain support plates are arranged in sequence along the extension direction of the cable receiving groove;

[0021] The drag chain support plate is provided with a plurality of vertically penetrating support shaft accommodating holes, and a drag chain support rotating shaft is rotatably connected in the support shaft accommodating holes.

[0022] Description: The drag chain support mechanism can provide good and stable support for the cable drag chain, reduce the friction resistance when the cable drag chain moves, and avoid dust problems causing greater wear on the cable drag chain.

[0023] Preferably, a support plate cleaning rod is fixedly provided on the side of the cable traction slider, and the support plate cleaning rod is extended in a direction perpendicular to the cable accommodating groove, and a cleaning brush is fixedly provided on the lower side of the support plate cleaning rod.

[0024] Note: A cleaning brush is provided on the support plate cleaning rod. With the reciprocating movement of the cable pulling slider, the cleaning brush can clean up the dust accumulated on the top of the drag chain support plate in time.

[0025] Preferably, the cable drag chain is composed of a plurality of drag chain links, longitudinal connecting plates and transverse connecting rods;

[0026] The drag chain link is a ring-shaped rectangular frame structure, and the end of the vertical side wall of the drag chain link is provided with a link connection groove, and the longitudinal connecting plate is rotatably connected in the link connection groove through the longitudinal rotating shaft;

[0027] The longitudinal connecting plate is a shell structure with an opening at one end, and the end of the transverse connecting rod is rotatably connected in the longitudinal connecting plate through a transverse rotating shaft;

[0028] The axis of the longitudinal rotating shaft is perpendicular to the through direction of the chain links of the drag chain, and the axis of the transverse rotating shaft is perpendicular to the axis of the longitudinal rotating shaft.

[0029] Description: The cable drag chain structure can realize bidirectional deflection, that is, simultaneously realize the rotational reversing movement (lateral movement) of the cable clamp and the lifting movement (longitudinal movement) following the coal mining machine.

[0030] Preferably, a separation and accommodation mechanism is provided in the drag chain link, and the separation and accommodation mechanism comprises a separation and accommodation ring, and the separation and accommodation ring is formed by splicing two separation and accommodation half rings;

[0031] A partition support rod is fixedly provided on the outer side of the partition accommodating semi-ring, the partition support rod extends radially along the partition accommodating semi-ring, and a partition support block is fixedly connected to the other end of the partition support rod.

[0032] Description: The separation and accommodation mechanism facilitates the separation and arrangement of cables to avoid excessive wear between the cables.

[0033] Preferably, the slide slot and slider mechanism comprises two dustproof support slide rails fixedly connected to the bottom of the cable accommodating slot and parallel to each other, and the sides of the dustproof support slide rails away from each other have trapezoidal support slots;

[0034] A roller support plate is fixedly provided at the bottom of the cable traction sliding block, and a supporting roller is fixedly connected on the roller support plate. The supporting roller is supported in a rolling cooperation manner in the trapezoidal supporting groove.

[0035] Description: The roller slide structure of the dust-proof slide mechanism can greatly reduce the movement resistance, and the vertical dust-proof support slide can avoid the accumulation of dust and particle blocks, and the cleaning trapezoidal plate arranged on the roller support plate can promptly scrape off the dust attached to the trapezoidal support groove to ensure the smooth and stable operation of the cable traction slider.

[0036] Preferably, the roller support plate is connected to the bottom of the cable pulling slider through a spacing pre-tightening mechanism, the spacing pre-tightening mechanism includes a spacing pre-tightening accommodating groove at the bottom of the cable pulling slider, a spacing pre-tightening slider is slidably provided in the spacing pre-tightening accommodating groove, and the roller support plate is fixedly connected to the spacing pre-tightening slider;

[0037] The extension direction of the spacing preload accommodating groove is perpendicular to the extension direction of the dustproof support rail;

[0038] The spacing pre-tightening slide block is driven by a threaded screw structure to move along the spacing pre-tightening accommodating groove.

[0039] Description: The spacing preload mechanism facilitates the adjustment of the support prestress between the support roller and the trapezoidal support groove.

[0040] Preferably, a track dust cleaning mechanism is provided on the side of the cable pulling slider, and the track dust cleaning mechanism comprises a cleaning trapezoidal plate, and the cleaning trapezoidal plate is a thin steel plate with elasticity;

[0041] The cleaning trapezoidal plate is made of 60Si2Mn material with a thickness of 0.2mm to 0.5mm;

[0042] The cleaning trapezoidal plate is slidably contacted and matched in the trapezoidal supporting groove, and the cleaning trapezoidal plate is fixedly connected with the side surface of the cable pulling sliding block through a cleaning plate connecting rod.

[0043] Note: Cleaning the trapezoidal plate can promptly scrape off the dust attached to the trapezoidal support groove to ensure the smooth and stable operation of the cable traction slider.

[0044] Preferably, the portion of the bottom of the cable receiving groove between the two dustproof support rails is a vertically through-hole hollow structure;

[0045] A cinder scraper is fixedly provided at the bottom of the cable traction sliding block, and the cinder scraper is located between two dust-proof supporting sliding rails.

[0046] Description: The cinder shovel can push the broken coal blocks scattered at the bottom of the cable trough, so that the broken coal blocks fall out of the porous hollow structure and are discharged.

[0047] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0048] 1. The present invention has a reasonable structural design and is suitable for cable dragging of coal mining machines in extremely thin coal seams. The present invention adopts a flat distributed anti-deflection cable clamp reversing mechanism, which changes the cable clamp from vertical distribution to horizontal distribution. The overall structure has a simple and compact horizontal layout and a low overall height, which can well meet the requirements of the passing height of coal mining machines in extremely thin coal seam working faces;

[0049] 2. The cable traction slider of the present invention adopts a dustproof slide rail mechanism to be connected to the cable containing groove. The roller slide rail structure can greatly reduce the movement resistance, and the vertical dustproof support slide rail can avoid the accumulation of dust and particle blocks. The cleaning trapezoidal plate arranged on the roller support plate can timely scrape off the dust attached to the trapezoidal support groove, thereby ensuring the smooth and stable operation of the cable traction slider;

[0050] 3. The cable drag chain of the present invention can simultaneously realize the rotational reversing movement (lateral movement) of the cable clamp and the lifting movement (longitudinal movement) following the coal mining machine, that is, double-degree-of-freedom movement, which effectively solves the problem that the cable clamp cannot move freely with the coal mining machine under extremely thin coal seam conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a front view of the present invention;

[0052] Figure 2 yes Figure 1 Right view of;

[0053] Figure 3 yes Figure 1 A top view of

[0054] Figure 4 yes Figure 1 Bottom view of

[0055] Figure 5 It is a right side view of the slideway and slider mechanism of the present invention;

[0056] Figure 6 It is a right side view of the spacing pre-tightening mechanism of the present invention;

[0057] Figure 7 It is a structural schematic diagram of the drag chain link of the present invention;

[0058] Figure 8 yes Figure 7 Left view of

[0059] Fig. 9 yes Figure 7 A top view of

[0060] Fig.10 It is a top view of the traction guide swivel of the present invention.

[0061] In the figure, 10-drag support structure, 11-cable receiving groove, 12-dovetail groove, 121-dovetail groove matching slider, 13-coal slag leakage hole, 14-drag chain support mechanism, 141-drag chain support plate, 142-drag chain support column, 143-support shaft receiving hole, 144-drag chain support shaft, 145-support plate cleaning rod, 146-cleaning brush, 150-support roller, 151-dustproof support slide rail, 152-trapezoidal support groove, 153-roller support plate, 16-spacing pre-tightening mechanism, 161-spacing pre-tightening receiving groove, 162-spacing pre-tightening slider, 17-track dust Cleaning mechanism, 171-cleaning trapezoidal plate, 172-cleaning plate connecting rod, 18-coal cinder shovel, 20-dragging and traction mechanism, 21-cable traction slider, 211-traction connecting plate, 212-traction support shaft, 213-traction guide swivel, 22-cable drag chain, 221-drag chain link, 222-longitudinal connecting plate, 223-transverse connecting rod, 224-chain link connecting groove, 225-longitudinal rotating shaft, 226-transverse rotating shaft, 23-partitioning and accommodating mechanism, 231-partitioning and accommodating ring, 232-partitioning and supporting rod, 233-partitioning and supporting block, 230-partitioning and accommodating half ring. DETAILED DESCRIPTION

[0062] Combine the following Figure 1-Figure 10 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are consistent with the up, down, left, right, front, and back directions of the projection relationship of the respective main views or structural schematic diagrams themselves.

[0063] Embodiment 1:

[0064] An intelligent follow-up multi-degree-of-freedom cable dragging device for extremely thin coal seam working faces, such as Figure 1 As shown, it includes a towing support structure 10 and a towing traction mechanism 20 arranged on the towing support structure 10;

[0065] The dragging support structure 10 includes a cable receiving groove 11 with an opening facing upward;

[0066] like Figure 4 As shown, the bottom of the cable receiving groove 11 has a vertically penetrating cinder leakage hole 13, and a plurality of cinder leakage holes 13 are arranged along the extension direction of the cable receiving groove 11;

[0067] The shapes and sizes of the multiple coal slag leaks are consistent, with a cross-sectional area of ​​200cm 2 ;

[0068] The dragging and traction mechanism 20 includes a cable traction slider 21 slidably connected in the cable receiving groove 11, a traction connecting plate 211 is fixedly connected to the cable traction slider 21, a vertically extending traction support shaft 212 is fixedly connected to the traction connecting plate 211, and a traction guide swivel 213 is rotatably connected to the traction support shaft 212;

[0069] The cable pulling slider 21 is driven by a motor to move along the cable receiving groove 11;

[0070] A cable drag chain 22 is dragged on the traction guide swivel 213;

[0071] The bottom of the cable pulling slider 21 is slidably connected in the cable receiving groove 11 through a sliding groove slider mechanism.

[0072] The slide block mechanism includes two mutually parallel dovetail grooves 12 arranged at the bottom of the cable receiving groove 11, and a dovetail groove matching slider 121 fixedly arranged at the bottom of the cable pulling slider 21, and the dovetail groove matching slider 121 is slidably connected in the dovetail groove 12;

[0073] like Figure 1 As shown, a drag chain support mechanism 14 is fixedly provided in the cable receiving groove 11, and the drag chain support mechanism 14 includes a plurality of drag chain support plates 141, and the bottom of the drag chain support plates 141 is fixedly connected to the bottom of the cable receiving groove 11 through a plurality of drag chain support columns 142;

[0074] A plurality of drag chain support plates 141 are sequentially arranged along the extension direction of the cable receiving groove 11;

[0075] The drag chain support plate 141 is provided with a plurality of vertically penetrating support shaft receiving holes 143 , and a drag chain support rotating shaft 144 is rotatably connected in the support shaft receiving holes 143 .

[0076] like Figure 2 As shown, a support plate cleaning rod 145 is fixedly provided on the side of the cable pulling slider 21 . The support plate cleaning rod 145 is extended in a direction perpendicular to the cable receiving groove 11 . A cleaning brush 146 is fixedly provided on the lower side of the support plate cleaning rod 145 .

[0077] like Figure 8 As shown, the cable drag chain 22 is composed of a plurality of drag chain links 221, a longitudinal connecting plate 222 and a transverse connecting rod 223;

[0078] like Figure 7 As shown, the drag chain link 221 is a ring-shaped rectangular frame structure, and the vertical side wall end of the drag chain link 221 has a link connection groove 224, and the longitudinal connecting plate 222 is rotatably connected in the link connection groove 224 through a longitudinal rotating shaft 225;

[0079] The longitudinal connecting plate 222 is a shell structure with one end open, and the end of the transverse connecting rod 223 is rotatably connected in the longitudinal connecting plate 222 via a transverse rotating shaft 226;

[0080] The axis of the longitudinal rotating shaft 225 is perpendicular to the through direction of the drag chain link 221 , and the axis of the transverse rotating shaft 226 is perpendicular to the axis of the longitudinal rotating shaft 225 .

[0081] like Figure 7 As shown, a separation and accommodation mechanism 23 is provided in the drag chain link 221, and the separation and accommodation mechanism 23 includes a separation and accommodation ring 231, and the separation and accommodation ring 231 is formed by splicing two separation and accommodation half rings 230;

[0082] A partition support rod 232 is fixedly provided on the outer side of the partition accommodating semi-ring 230 . The partition support rod 232 extends radially along the partition accommodating semi-ring 230 . A partition support block 233 is fixedly connected to the other end of the partition support rod 232 .

[0083] like Figure 6 As shown, a track dust cleaning mechanism 17 is provided on the side of the cable pulling slider 21, and the track dust cleaning mechanism 17 includes a cleaning trapezoidal plate 171, and the cleaning trapezoidal plate 171 is a thin steel plate with elasticity;

[0084] The cleaning trapezoidal plate 171 is slidably contacted and fitted in the trapezoidal support groove 152 , and the cleaning trapezoidal plate 171 is fixedly connected to the side surface of the cable pulling slider 21 through a cleaning plate connecting rod 172 .

[0085] Embodiment 2:

[0086] like Figure 5 As shown, the difference from embodiment 1 is that the slideway slider mechanism includes two dustproof support rails 151 fixedly connected to the bottom of the cable receiving groove 11 and parallel to each other, and the sides of the dustproof support rails 151 away from each other have trapezoidal support grooves 152;

[0087] A roller support plate 153 is fixedly provided at the bottom of the cable pulling slider 21 , and a support roller 150 is fixedly connected to the roller support plate 153 . The support roller 150 is supported in a rolling fit in the trapezoidal support groove 152 .

[0088] like Figure 6 As shown, the roller support plate 153 is connected to the bottom of the cable pulling slider 21 through the spacing pre-tightening mechanism 16, the spacing pre-tightening mechanism 16 includes a spacing pre-tightening accommodating groove 161 at the bottom of the cable pulling slider 21, and a spacing pre-tightening slider 162 is slidably provided in the spacing pre-tightening accommodating groove 161, and the roller support plate 153 is fixedly connected to the spacing pre-tightening slider 162;

[0089] The extension direction of the spacing pre-tightening accommodating groove 161 is perpendicular to the extension direction of the dustproof supporting rail 151;

[0090] The spacing pre-tightening slide block 162 is driven by the threaded screw structure to move along the spacing pre-tightening accommodating groove 161 .

[0091] like Figure 3 As shown, the bottom portion of the cable receiving groove 11 between the two dustproof support rails 151 is a vertically through-hole hollow structure;

[0092] like Figure 6 As shown, a cinder scraper 18 is fixedly provided at the bottom of the cable pulling slider 21 , and the cinder scraper 18 is located between two dust-proof supporting rails 151 .

[0093] Embodiment 3:

[0094] The difference from Example 2 is that the cross-sectional areas of the plurality of coal slag leakage holes 13 increase and decrease periodically and gradually in sequence;

[0095] The minimum cross-sectional area of ​​the cinder leakage hole 13 is 300 cm 2 , the ratio between the larger cross-sectional area and the smaller cross-sectional area of ​​two adjacent cinder leakage holes 13 is 130%;

[0096] The cleaning trapezoidal plate 171 is made of 60Si2Mn material and has a thickness of 0.5 mm.

[0097] Embodiment 4:

[0098] The difference from Example 3 is that the minimum cross-sectional area of ​​the cinder leakage hole 13 is 100 cm 2 , the ratio between the larger cross-sectional area and the smaller cross-sectional area of ​​two adjacent cinder leakage holes 13 is 110%;

[0099] The thickness of the cleaning trapezoidal plate 171 is 0.2 mm.

[0100] Embodiment 5:

[0101] The difference from Example 3 is that the minimum cross-sectional area of ​​the cinder leakage hole 13 is 200 cm 2 , the ratio between the larger cross-sectional area and the smaller cross-sectional area of ​​two adjacent cinder leakage holes 13 is 120%;

[0102] The thickness of the cleaning trapezoidal plate 171 is 0.3 mm.

Claims

1. An intelligent follow-up multi-degree-of-freedom cable dragging device for an extremely thin coal seam working face, characterized in that: It comprises a towing support structure (10), and a towing and traction mechanism (20) arranged on the towing support structure (10); The dragging support structure (10) comprises a cable receiving groove (11) with an opening facing upward; The dragging and traction mechanism (20) comprises a cable traction slider (21) slidably connected in the cable receiving groove (11); a traction connection plate (211) is fixedly connected to the cable traction slider (21); a vertically extending traction support shaft (212) is fixedly connected to the traction connection plate (211); and a traction guide swivel (213) is rotatably connected to the traction support shaft (212); A cable drag chain (22) is dragged on the traction guide swivel (213); The bottom of the cable pulling slider (21) is connected in the cable containing groove (11) by sliding fit through a sliding groove slider mechanism.

2. According to claim 1, an intelligent follow-up multi-degree-of-freedom cable dragging device for an ultra-thin coal seam working face is characterized in that: The slide block mechanism comprises two mutually parallel dovetail grooves (12) arranged at the bottom of the cable receiving groove (11), and a dovetail groove matching slider (121) fixedly arranged at the bottom of the cable pulling slider (21), and the dovetail groove matching slider (121) is slidably connected in the dovetail groove (12); The bottom of the cable containing groove (11) is provided with a vertically penetrating coal slag leakage hole (13), and a plurality of the coal slag leakage holes (13) are arranged along the extension direction of the cable containing groove (11).

3. According to claim 1, the intelligent follow-up multi-degree-of-freedom cable dragging device for ultra-thin coal seam working face is characterized in that: A drag chain support mechanism (14) is fixedly provided in the cable containing groove (11), and the drag chain support mechanism (14) comprises a plurality of drag chain support plates (141), and the bottom of the drag chain support plates (141) is fixedly connected to the bottom of the cable containing groove (11) via a plurality of drag chain support columns (142); The plurality of drag chain support plates (141) are arranged in sequence along the extension direction of the cable accommodating groove (11); The drag chain support plate (141) is provided with a plurality of vertically penetrating support shaft receiving holes (143), and a drag chain support rotating shaft (144) is rotatably connected in the support shaft receiving hole (143).

4. The intelligent follow-up multi-degree-of-freedom cable dragging device for ultra-thin coal seam working face according to claim 3 is characterized by: A support plate cleaning rod (145) is fixedly provided on the side of the cable pulling slider (21), and the support plate cleaning rod (145) is extended in a direction perpendicular to the cable containing groove (11). A cleaning brush (146) is fixedly provided on the lower side of the support plate cleaning rod (145).

5. The intelligent follow-up multi-degree-of-freedom cable dragging device for ultra-thin coal seam working face according to claim 1 is characterized in that: The cable drag chain (22) is composed of a plurality of drag chain links (221), a longitudinal connecting plate (222) and a transverse connecting rod (223); The drag chain link (221) is a ring-shaped rectangular frame structure, and the end of the vertical side wall of the drag chain link (221) has a link connection groove (224), and the longitudinal connection plate (222) is rotatably connected to the link connection groove (224) via a longitudinal rotating shaft (225); The longitudinal connecting plate (222) is a shell structure with an open end, and the end of the transverse connecting rod (223) is rotatably connected to the longitudinal connecting plate (222) via a transverse rotating shaft (226); The axis of the longitudinal rotating shaft (225) is perpendicular to the through direction of the drag chain link (221), and the axis of the transverse rotating shaft (226) is perpendicular to the axis of the longitudinal rotating shaft (225).

6. The intelligent follow-up multi-degree-of-freedom cable dragging device for ultra-thin coal seam working face according to claim 5 is characterized by: A separation and accommodation mechanism (23) is provided in the drag chain link (221), wherein the separation and accommodation mechanism (23) comprises a separation and accommodation ring (231), and the separation and accommodation ring (231) is formed by splicing two separation and accommodation half rings (230); A separation support rod (232) is fixedly provided on the outside of the separation and accommodation semi-ring (230), and the separation support rod (232) extends radially along the separation and accommodation semi-ring (230). A separation support block (233) is fixedly connected to the other end of the separation support rod (232).

7. The intelligent follow-up multi-degree-of-freedom cable dragging device for ultra-thin coal seam working face according to claim 1 is characterized in that: The slide slot and slider mechanism comprises two dustproof support slide rails (151) fixedly connected to the bottom of the cable accommodating slot (11) and parallel to each other, and the side surfaces of the dustproof support slide rails (151) that are away from each other are provided with trapezoidal support grooves (152); A roller support plate (153) is fixedly provided at the bottom of the cable pulling slider (21), a support roller (150) is fixedly connected to the roller support plate (153), and the support roller (150) is supported in a rolling manner in the trapezoidal support groove (152).

8. The intelligent follow-up multi-degree-of-freedom cable dragging device for ultra-thin coal seam working face according to claim 7 is characterized by: The roller support plate (153) is connected to the bottom of the cable traction slider (21) through a spacing pre-tightening mechanism (16); the spacing pre-tightening mechanism (16) comprises a spacing pre-tightening accommodating groove (161) provided at the bottom of the cable traction slider (21); a spacing pre-tightening slider (162) is slidably provided in the spacing pre-tightening accommodating groove (161); the roller support plate (153) is fixedly connected to the spacing pre-tightening slider (162); The extension direction of the spacing pre-tightening accommodating groove (161) is perpendicular to the extension direction of the dustproof supporting slide rail (151); The spacing pre-tightening sliding block (162) is driven by a threaded screw structure to move along the spacing pre-tightening accommodating groove (161).

9. The intelligent follow-up multi-degree-of-freedom cable dragging device for ultra-thin coal seam working face according to claim 7 is characterized in that: A track dust cleaning mechanism (17) is provided on the side of the cable pulling slider (21), and the track dust cleaning mechanism (17) comprises a cleaning trapezoidal plate (171); The cleaning trapezoidal plate (171) is slidably contacted and fitted in the trapezoidal support groove (152), and the cleaning trapezoidal plate (171) is fixedly connected to the side of the cable pulling slider (21) via a cleaning plate connecting rod (172).

10. The intelligent follow-up multi-degree-of-freedom cable dragging device for ultra-thin coal seam working face according to claim 7, characterized in that: The portion of the bottom of the cable containing groove (11) between the two dustproof support slide rails (151) is a vertically penetrating multi-porous hollow structure; A cinder scraper (18) is fixedly provided at the bottom of the cable pulling slide block (21), and the cinder scraper (18) is located between the two dust-proof support slide rails (151).

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