CN112049635A - Mining machine walking engagement system with material leaking structure - Google Patents

Abstract

The invention relates to a mining machine walking meshing system with a material leaking structure, which comprises a track unit and a guide sliding shoe, wherein the guide sliding shoe is provided with a front bottom wear-resistant layer, a front side wear-resistant layer, a rear top wear-resistant layer, a rear side wear-resistant layer and a rear bottom wear-resistant layer, the track unit comprises a front vertical plate, a rear vertical plate and track teeth, the bottom surface and the front side surface of the front vertical plate are respectively contacted and matched with the front bottom wear-resistant layer and the front side wear-resistant layer, the upper part of the rear vertical plate is provided with a step protruding backwards, the top surface of the rear vertical plate, the rear side surface and the bottom surface of the step are respectively contacted and matched with the rear top wear-resistant layer, the rear side wear-resistant layer and the rear bottom wear-resistant layer, a first material leaking channel is arranged below a track tooth nest between the track teeth, and a. The invention can improve the adaptability of the guide system of the drum-type mining machine to high-hardness and high-lumpiness mineral materials, avoid the rapid abrasion and crushing of the guide system and shorten the fault processing time.

Description

Mining machine walking engagement system with material leaking structure

Technical Field

The invention relates to a mining machine walking meshing system, which is particularly suitable for the condition that mineral aggregate is in a block shape, the abrasion of the existing guide sliding shoes is obvious, particularly the abrasion of bottom hooks of the existing guide sliding shoes is serious, and belongs to the technical field of underground mining machinery.

Background

When a drum-type mining machine is adopted for mining high-hardness mineral materials, reaction force (particularly impact) generated by cutting the hard mineral materials has great influence on a walking engagement system of the mining machine, and the ore with larger bulk makes the adaptability (faster contact surface abrasion, worse adaptability represented by crushing and the like due to unbalance loading) of the walking engagement system of the mining machine face a severe test, for example, the walking engagement system with the existing structure shown in fig. 11 has the advantages that when the high-hardness and large-block-degree accumulated materials at a track cannot be effectively discharged, walking gear teeth cannot break rock blocks, guide sliding shoes are clamped by the rock blocks and the like to cause serious abrasion and pressure of the engagement system, so that the service life of the walking engagement system is obviously reduced, a large amount of replacement is often required, and the mining economy is seriously influenced.

In view of the above problems, it has been proposed in the art to increase the thickness and length of the wear layer of the contact surface of the guide shoe of the mining machine and to apply further surface hardening measures to the contact surface of the rail, which, although improving and increasing the service life of the walking engagement system of the existing mining machine to some extent, still do not solve the above problems fundamentally and still affect the walking speed of the mining machine, which is still an important factor limiting the productivity and economic exploitation.

Disclosure of Invention

The invention aims to provide a mining machine walking and meshing system with a material leaking structure, which can solve the problem of adaptability of the drum type mining machine walking and meshing system to high-hardness and high-lumpiness mineral materials and avoid the problems of rapid abrasion, crushing and large-amount replacement of the walking and meshing system under the condition.

The main technical scheme of the invention is as follows:

a mining machine walking meshing system with a material leaking structure comprises a track unit and a guide sliding shoe which stretches across the track unit and forms a left-right sliding connection structure with the track unit, wherein the guide sliding shoe is provided with a front bottom wear-resistant layer, a front side wear-resistant layer, a rear top wear-resistant layer, a rear side wear-resistant layer and a rear bottom wear-resistant layer, the front bottom wear-resistant layer and the front side wear-resistant layer are sequentially connected end to form an L-shaped groove with a notch facing to the rear upper side, the rear top wear-resistant layer, the rear side wear-resistant layer and the rear side wear-resistant layer are sequentially connected end to form a double-sided groove with a notch facing to the front, the track unit comprises a front vertical plate, a rear vertical plate and a plurality of track teeth which are connected between the front vertical plate and the rear vertical plate and are distributed at left and right intervals, the bottom surface and the front side surface of the front vertical plate are both provided with, the upper part of the rear vertical plate is provided with a step protruding backwards, the top surface of the rear vertical plate, the rear side surface of the step and the bottom surface of the step are all set to be hardened surfaces and are respectively contacted and matched with the rear top wear-resistant layer, the rear side wear-resistant layer and the rear bottom wear-resistant layer, a material leaking guide surface with a front lower part and a rear high part inclined is arranged below the guide sliding shoe, a space between adjacent rail teeth is a rail tooth socket, the rail tooth socket and a space extending from the lower opening of the rail tooth socket to the front lower part along an interlayer between the front part of the guide sliding shoe and the material leaking guide surface form a first material leaking channel, and a second material leaking channel continuously downward is formed from the lower part of the step along the space extending from the rear part of the guide sliding shoe, the rear vertical plate, the rail teeth, the front vertical plate and the interlayer between the front part of.

The front side and the back side of the track tooth socket are both vertically extending surfaces, or the front width and the back width of the track tooth socket are narrow at the top and wide at the bottom.

The top surface of the front vertical plate is lower than that of the rear vertical plate, the top surface of the track teeth is an inclined top surface with a lower front part and a higher rear part, the lower bottom surfaces of the track teeth are inclined lower bottom surfaces with a lower front part and a higher rear part, or the sliding shoe main body is further provided with a front top wear-resistant layer, the top surface of the front vertical plate is set to be a hardened surface and is in contact and matched with the front top wear-resistant layer, the top surface of the front vertical plate is flush with the top surface of the rear vertical plate, and the height of the step is smaller than that of the front vertical plate.

The mining machine walking engagement system with the material leaking structure further comprises a conveying groove and a rail seat, connecting lugs extending downwards are respectively arranged below the left end and the right end of the rear vertical plate, the rail unit is mounted on the rail seat through the connecting lugs, the rail seat is fixed on the rear ledge of the conveying groove, and the material leaking guide surface is fixed relative to the conveying groove.

The bottom of the rear vertical plate is connected with the top of the connecting lug through a transition section which extends obliquely backwards and downwards, the top of the transition section extends forwards to the lower bottom surfaces of the rail teeth at the leftmost end and the rightmost end of the rail unit respectively, and the front side surface of the connecting lug is positioned behind the front side surface of the rear vertical plate.

The transition section is preferably provided with a bottom plane positioned in front of the corresponding connecting lug, and the bottom plane is contacted with the top surface of the front part of the rail seat.

The plurality of track units are arranged in sequence from left to right, one ends, close to each other, of every two adjacent track units are connected through the same track seat, and the middle of the front portion of the track seat is provided with an inclined surface which is low in front and high in back.

The material guide face that leaks between the adjacent track seat can constitute by the surface on the top surface of leaking the material guide board and/or the conveyer trough, the material guide face that leaks of track seat department can constitute by the surface on the top surface of leaking the material guide board and/or the track seat, when adopting the material guide board that leaks, it sets up on the conveyer trough to leak the material guide board fixedly.

The mining machine walking engagement system with the material leaking structure further comprises a mining machine walking wheel and a walking wheel shaft, the wheel teeth of the walking wheel are engaged with the rail teeth, the front portion and the rear portion of the guide sliding shoe penetrate through the walking wheel shaft and are located on the front side and the rear side of the walking wheel respectively, and the tooth addendum surface of the wheel teeth of the walking wheel is an inclined tooth addendum surface with a large diameter and a small diameter.

The conveying trough further comprises a shovel plate, the shovel plate is located in front of the conveying trough, the traveling wheel shaft is installed at the rear portion of the machine body of the mining machine, the rear portion of the machine body of the mining machine is supported on the track through the guide sliding shoes, and the front portion of the mining machine is supported on the shovel plate through the support sliding shoes.

The invention has the beneficial effects that:

because the first material leaking channel is arranged, the tooth tips of the gear teeth of the walking wheels push against lump materials accumulated in the tooth sockets of the crushing track, and the crushed ore materials are extruded into the first material leaking channel. Through setting up first hourglass material passageway and forming continuous decurrent second and leak the material passageway, guaranteed the peripheral mineral aggregate of track unit (no matter be soil form or massive high hardness mineral aggregate), can both be pushed out from the track unit top by the guide slipper migration back, the conveyer trough is slided into from the addendum of track unit, perhaps by broken first hourglass material passageway that gets into downwards, or the fritter mineral aggregate is directly crowded into the conveyer trough through the second leaks the material passageway, or the mineral aggregate under the bottom surface of back riser step is crowded the second by the guide slipper and is leaked the material passageway, avoided the mineral aggregate to pile up the influence to walking meshing system.

According to the invention, the rear bottom wear-resistant layer is additionally arranged on the guide sliding shoe, so that the stress of the traveling wheel is effectively balanced together with the front bottom wear-resistant layer, particularly under the condition that the engaging force (broken rock) caused by high-hardness and large-lumpiness mineral aggregate filled in the track tooth socket is increased rapidly, the bottom stress contact area is increased, and the problems of unbalance loading caused by single-side stress, high stress contact area caused by unbalance loading, rapid wear and crushing and the like are avoided due to balanced stress on two sides of the traveling wheel.

Because thick wear-resisting layers and hardening measures are adopted on the contact surfaces of the front bottom surface and the rear bottom surface of the guide sliding shoe and the rail unit respectively, the reliability of the structure is further improved.

Drawings

FIG. 1 is an overall installation schematic of one embodiment of the present invention;

FIG. 2 is a schematic structural view of the track unit shown in FIG. 1;

FIG. 3 is a cross-sectional view taken along line D-D of FIG. 2;

FIG. 4 is a cross-sectional view taken along line K-K of FIG. 2;

FIG. 5 is a front view of the rail housing of FIG. 1;

FIG. 6 is a schematic illustration of the guide shoe of FIG. 1;

FIG. 7 is a sectional view taken along line G-G of FIG. 1;

FIG. 8 is a schematic view of a weep channel of the present invention;

FIG. 9 is a schematic structural view of another embodiment of the track unit;

FIG. 10 is a schematic view showing the flow of the lump ore material from the hopper passage in the walking engagement system of the present invention;

fig. 11 is a schematic view of a walking engagement system with a conventional structure, which is incapable of effectively discharging accumulated materials at a track to affect a walking wheel and cause abrasion of a guide slipper.

Reference numerals:

1. a guide shoe; 11. a front side wear layer; 12. a rear top wear layer; 13. a rear side wear layer; 14. a rear bottom wear layer; 15. a front bottom wear layer;

2. a track unit; 21. a front vertical plate; 211. the bottom surface of the front vertical plate; 212. the side surface of the front vertical plate; 213. the top surface of the front vertical plate; 22. a rear vertical plate; 221. the top surface of the rear vertical plate; 222. the rear side of the step; 223. the bottom surface of the step; 224. the bottom surface of the rear vertical plate; 23. track teeth; 230. tooth crest; 231. the tooth flanks of the track teeth; 232. the front side of the track socket; 233. the back side of the track socket; 234. the lower bottom surface of the track tooth; 24. connecting lugs; 241. connecting the ear holes; 242. a lug support surface;

3. a traveling wheel; 321. gear teeth of the travelling wheel; 3211. the addendum surfaces of the gear teeth;

5. a conveying trough; 51. a shovel plate; 52. a rail seat; 521. a material leakage port; 53. a leakage guide plate;

81. a first leakage channel; 82. a second leakage channel;

91. the mineral aggregate such as the block is pushed and discharged; 92. the existing structure is piled up with mineral material at the track units.

Detailed Description

The invention discloses a mining machine walking meshing system with a material leaking structure (which can be called as a walking meshing system for short), which comprises a track unit 2 and a guide sliding shoe 1, wherein the guide sliding shoe 1 spans on the track unit and forms a left-right sliding connection structure with the track unit, and a front bottom wear layer 15, a front side wear layer 11, a rear top wear layer 12, a rear side wear layer 13 and a rear bottom wear layer 14 are arranged on the guide sliding shoe. The front bottom wear-resistant layer 15 and the front side wear-resistant layer 11 are sequentially connected end to form an L-shaped groove with a notch facing to the rear upper side, and the rear top wear-resistant layer 12, the rear side wear-resistant layer 13 and the rear bottom wear-resistant layer 14 are sequentially connected end to form a double-side groove with a forward notch. The track unit 2 comprises a front vertical plate 21, a rear vertical plate 22 and a plurality of track teeth 23 which are connected between the front vertical plate and the rear vertical plate and are distributed at left and right intervals. The bottom surface 211 and the front side surface 212 of the front vertical plate are both set as hardened surfaces and are respectively contacted and matched with the front bottom wear-resistant layer and the front side wear-resistant layer. The upper part of the rear vertical plate is provided with a step protruding backwards, and the top surface 221 (including the top surface of the step), the rear side surface 222 of the step and the bottom surface 223 of the step of the rear vertical plate are all set as hardened surfaces and are respectively contacted and matched with the rear top wear-resistant layer, the rear side wear-resistant layer and the rear bottom wear-resistant layer. The five hardened surfaces correspond to the five wear-resistant layers one by one, wherein the wear-resistant layers are thickened, and the hardened surfaces are matched to be beneficial to prolonging the wear life of the contact surfaces and improving the structural reliability of the walking meshing system.

And a material leakage guide surface which is inclined from low front to high back is arranged below the guide sliding shoe. The space between adjacent track teeth is the track tooth nest, and the track tooth nest and from the track tooth nest lower extreme along the front portion of direction piston shoe and the space that the intermediate layer extends to the front below between the guide face that leaks form first hourglass material passageway 81, and the teeth of a cogwheel tooth point top of walking wheel breaks the lump material that piles up in the track tooth nest to the mineral aggregate extrusion after will breaking gets into first hourglass material passageway. And a continuous downward second material leaking channel 82 is formed along the space extending from the lower part of the step to the front lower part along the interlayer between the parts (positioned above) of the rear part of the guide sliding shoe, the rear vertical plate, the track teeth, the front vertical plate and the front part of the guide sliding shoe and the material leaking guide surface (positioned below). The first and second material leaking channels are arranged to ensure that the mineral aggregate (no matter the high-hardness mineral aggregate is in a soil shape or a block shape) around the track unit can be pushed out from the top of the track unit after being pushed by the guide sliding shoe, and slides into the conveying groove from the tooth crest of the track unit, or is crushed to enter the first material leaking channel downwards, or the small mineral aggregate is directly extruded into the conveying groove through the second material leaking channel, or the mineral aggregate under the bottom surface 223 of the rear vertical plate step is extruded by the bottom hook at the rear part of the sliding shoe to enter the second material leaking channel, so that the influence of mineral aggregate accumulation on the walking meshing system is avoided. The mineral aggregate flowing out of the first material leakage channel and the second material leakage channel finally enters the conveying groove 5. The lower bottom surface 234 of the rail tooth is a sloping surface with a lower front and a higher rear, which forms the top of the second leakage path with the bottom surface 224 of the rear vertical plate. As can be seen from a comparison of fig. 10 and 11, when the walking and meshing system of the present invention is used, the mineral aggregate 91 such as lump material, which is pushed and discharged, can smoothly enter the conveying chute, and when the walking and meshing system of the conventional structure is used, the mineral aggregate 92 is accumulated at the track unit and cannot be effectively discharged.

Through increasing the wearing layer at the bottom of the rear, increased back bottom surface contact surface in other words, effectively balanced walking wheel 3's atress together with the wearing layer at the bottom of the place ahead, still set up the side wearing layer in order to provide the side direction support at the front side simultaneously with the rear side, under abominable operating mode, the good stress state of walking wheel can all be guaranteed to the totality, has consequently improved walking engagement system's adaptability, has finally improved mining machine walking engagement system's reliability greatly.

The walking engagement system may be further optimized in one or more of the following respects:

the tooth surface 231 of the orbital tooth is subjected to surface hardening treatment, which is beneficial to ensuring the meshing effect.

The front 232 and rear 233 sides of the track socket (and also the rear side of the front riser and the front side of the rear riser) are both vertical or near-vertical surfaces that facilitate the smooth drop of mineral material that accumulates within the track socket. Or the front and back widths of the track tooth nest are narrow at the top and wide at the bottom, so that the material leakage and discharge are also facilitated.

As shown in fig. 2, the top surface of the front vertical plate may be lower than the bottom surface of the rear vertical plate, and accordingly, the bottom surface of the front vertical plate is lower than the bottom surface of the rear vertical plate, and the top surface 230 of the track tooth is an inclined top surface with a lower front and a higher rear, so as to provide a guide for the falling of the large ore material and the entering of the conveying chute 5 from the front of the track unit. The lower bottom surface 234 of the rail tooth is an inclined lower bottom surface that is low in front and high in rear. The track unit is integrally set to be the inclined structure with the front lower part and the rear higher part, a wider material leaking space can be formed in the track tooth socket and below the track unit, and mineral aggregate can be guided to move towards the front lower part, so that the accumulation of the mineral aggregate is avoided.

Or, a front top wear-resistant layer may be further disposed on the slipper main body, and the top surface 213 of the front vertical plate is a hardened surface, and is in contact with and matched with the front top wear-resistant layer. In this case, the top surface of the front vertical plate is preferably flush with the top surface of the rear vertical plate, and the height of the step is smaller than that of the front vertical plate (see fig. 9). Six hardened surface and six wearing layer one-to-one correspond, form six to the direction cooperation surface, can further improve the wearing and tearing life-span of contact surface, improve walking engagement system's structural reliability, and the structure of track unit is simpler.

The mining machine walking engagement system with the skip structure further includes a conveyor trough 5 and a rail seat 52. The lower parts of the left end and the right end of the rear vertical plate are provided with connecting lugs 24. The rail unit is arranged on the rail seat through the connecting lugs matched with the pin shafts, the rail seat is fixed on the rear ledge of the conveying groove 5, and specifically, the connecting lug holes 241 of the connecting lugs at the left and right positions of the rear vertical plate are respectively hinged with the rear ledge through the pin shafts. The material leakage guide surface is fixed relative to the conveying groove. The leaking guide surface is generally extended in both front and rear directions of the engaging lug while avoiding the position of the engaging lug.

The bottom of the rear vertical plate is preferably connected with the top of the connecting lug through a transition section which obliquely extends backwards and downwards, the top of the transition section forwardly extends to the lower bottom surfaces of the rail teeth at the leftmost end and the rightmost end of the rail unit respectively, the front side surface of the connecting lug is positioned behind the front side surface of the rear vertical plate, so that the main body part of the rail unit consisting of the front vertical plate, the rear vertical plate and the rail teeth is in a forward and upward overhanging form relative to the connecting lug, and a larger material leaking and discharging space is provided below the main body of the rail unit. The upper end of the transition section is connected with the lower bottom surface of the corresponding most marginal track tooth on the track unit, so that the structure reinforcing effect is achieved.

The transition section is provided with a bottom plane located at the upper position in front of the corresponding connecting lug, which can be called a connecting lug supporting surface 242, and the connecting lug supporting surface is contacted with the front top surface of the rail seat in the installation state. The support surface 242 mainly supports the downward bending moment of the overhanging rail unit and contacts with the rail seat connecting lug to provide upper and lower support.

A plurality of track units are arranged in sequence from left to right to form a track, two adjacent track units share one track seat, and the sharing mode is that the ends close to each other are arranged on the same track seat from left to right. One of the left pin hole and the right pin hole on the rail seat is a round hole, and the other pin hole is a long hole with a long shaft horizontally arranged, so that the rail unit is ensured to have small play in the left-right direction relative to the rail seat. The middle of the front part of the rail seat is provided with a concave notch, the top surface of the concave notch is provided with an inclined surface with a lower front part and a higher rear part, and the inclined surface can be called as a material leakage opening 521 so as to facilitate the discharging of the first material leakage channel and the second material leakage channel between two adjacent rail units. The strip-shaped space between two adjacent rail seats in the installation state is also the space between the left connecting lug seat and the right connecting lug seat of each rail unit and is used for discharging the first material leaking channel and the second material leaking channel corresponding to the middle part of each rail unit.

The material leakage guide surface between adjacent rail seats may be constituted by the top surface of the material leakage guide plate 53 and/or the surface on the conveyor chute, the material leakage guide surface at the rail seat may be constituted by the top surface of the material leakage guide plate 53 and/or the surface on the rail seat, and when the material leakage guide plate is employed, the material leakage guide plate is fixedly arranged on the conveyor chute. In this embodiment, the hourglass material guide board welds on the conveyer trough.

The material leakage guide surface between two adjacent rail seats can be continuous front and back, and the material leakage guide surface at the rail seat is arranged in front of and behind the rail seat separately.

The mining machine walking meshing system with the material leaking structure further comprises a mining machine walking wheel 3 and a walking wheel shaft, the walking wheel is sleeved on the walking wheel shaft, and the front end and the rear end of the walking wheel shaft are supported on the walking part shell. The wheel teeth 321 of the travelling wheel are meshed with the track teeth 23, and the front part and the rear part of the guide sliding shoe are arranged on the travelling wheel shaft in a penetrating way and are respectively positioned at the front side and the rear side of the travelling wheel. The addendum 3211 of the gear teeth of the traveling wheel is an inclined addendum with a large diameter at the front and a small diameter at the rear, and can provide guidance for large ore materials to fall into the conveying chute.

The conveyor trough further comprises a shovel plate 51, which is located in the front part of the conveyor trough, the travelling wheel axle is mounted in the rear part of the machine body of the mining machine, the rear part of the machine body of the mining machine is supported on the rails by means of guide shoes, and the front part of the mining machine is supported on the shovel plate 51 by means of support shoes, so that a guide connection of the mining machine with the conveyor trough is achieved.

Herein, the direction of the mining machine close to the mine wall to be mined is front, and the direction of the mining machine far away from the mine wall to be mined is back.

Claims (10)

1. The utility model provides a mining machine walking engagement system with leak material structure which characterized in that: the track unit comprises a front vertical plate, a rear vertical plate and a plurality of track teeth which are connected between the front vertical plate and the rear vertical plate and are distributed at left and right intervals, the bottom surface and the front side surface of the front vertical plate are respectively provided with a hardened surface and are respectively contacted and matched with the front bottom wear-resistant layer and the front side wear-resistant layer, and the upper part of the rear vertical plate is provided with a step protruding backwards, the top surface of the rear vertical plate, the rear side surface of the step and the bottom surface of the step are all set to be hardened surfaces and are respectively in contact with and matched with the rear top wear-resistant layer, the rear side wear-resistant layer and the rear bottom wear-resistant layer, a material leaking guide surface with a front lower part and a rear higher part inclined is arranged below the guide sliding shoe, a space between adjacent rail teeth is a rail tooth socket, the rail tooth socket and a space extending from the lower opening of the rail tooth socket to the front lower part along an interlayer between the front part of the guide sliding shoe and the material leaking guide surface form a first material leaking channel, and a continuous downward second material leaking channel is formed from the space extending from the lower part of the step to the front lower part along the interlayer between the rear part of the guide sliding shoe, the rear vertical plate, the rail teeth, the front vertical plate and the.

2. A mining machine walking engagement system with a skip structure as claimed in claim 1 wherein: the front side and the back side of the track tooth socket are both vertically extending surfaces, or the front width and the back width of the track tooth socket are narrow at the top and wide at the bottom.

3. A mining machine walking engagement system with a skip structure as claimed in claim 1 wherein: the top surface of the front vertical plate is lower than that of the rear vertical plate, the top surface of the track teeth is an inclined top surface with a lower front part and a higher rear part, the lower bottom surfaces of the track teeth are inclined lower bottom surfaces with a lower front part and a higher rear part, or the sliding shoe main body is further provided with a front top wear-resistant layer, the top surface of the front vertical plate is set to be a hardened surface and is in contact and matched with the front top wear-resistant layer, the top surface of the front vertical plate is flush with the top surface of the rear vertical plate, and the height of the step is smaller than that of the front vertical plate.

4. A mining machine walking engagement system with a skip structure as claimed in claim 1, 2 or 3, wherein: the material leakage guide device is characterized by further comprising a conveying groove and a rail seat, connecting lugs extending downwards are arranged below the left end and the right end of the rear vertical plate respectively, the rail unit is mounted on the rail seat through the connecting lugs, the rail seat is fixed on the rear ledge of the conveying groove, and the material leakage guide surface is fixed relative to the conveying groove.

5. A mining machine walking engagement system with a skip structure as claimed in claim 4, wherein: the bottom of the rear vertical plate is connected with the top of the connecting lug through a transition section which extends obliquely backwards and downwards, the top of the transition section extends forwards to the lower bottom surfaces of the rail teeth at the leftmost end and the rightmost end of the rail unit respectively, and the front side surface of the connecting lug is positioned behind the front side surface of the rear vertical plate.

6. A mining machine walking engagement system with a skip structure as claimed in claim 5, wherein: and the transition section is provided with a bottom plane positioned in front of the corresponding connecting lug, and the bottom plane is contacted with the top surface of the front part of the rail seat.

7. A mining machine walking engagement system with a skip structure as claimed in claim 4, wherein: the rail units are sequentially arranged from left to right, one ends, close to each other, of every two adjacent rail units are connected through the same rail seat, and the middle of the front portion of the rail seat is provided with an inclined surface which is low in front and high in back.

8. A mining machine walking engagement system with a skip structure as claimed in claim 4, wherein: the material guide face that leaks between the adjacent track seat comprises the surface on the top surface of leaking the material guide board and/or the conveyer trough, the material guide face that leaks of track seat department comprises the surface on the top surface of leaking the material guide board and/or the track seat, when adopting the material guide board that leaks, it sets up on the conveyer trough to leak the material guide board fixedly.

9. A mining machine walking engagement system with a skip structure as claimed in claim 1, 2, 3, 4, 5, 6, 7 or 8 wherein: the mining machine walking wheel is characterized by further comprising a mining machine walking wheel and a walking wheel shaft, the wheel teeth of the walking wheel are meshed with the rail teeth, the front portion and the rear portion of the guide sliding shoe penetrate through the walking wheel shaft and are respectively located on the front side and the rear side of the walking wheel, and the tooth top surfaces of the wheel teeth of the walking wheel are inclined tooth top surfaces with the diameter being larger in the front portion and smaller in the rear portion.

10. A mining machine walking engagement system with a skip structure as claimed in claim 9, wherein: the conveyor trough further comprises a shovel plate, the shovel plate is located in the front portion of the conveyor trough, the walking wheel shaft is installed on the rear portion of the machine body of the mining machine, the rear portion of the machine body of the mining machine is supported on the track through the guide sliding shoes, and the front portion of the mining machine is supported on the shovel plate through the support sliding shoes.

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