Mining machine travel meshing system adapted to blocky ore

Abstract

The present invention relates to a walking meshing system for a mining machine adapted to massive ore materials, which includes a track unit and a guiding sliding shoe. The guiding sliding shoe includes a sliding shoe body, a sliding shoe bottom plate and a sliding shoe rear plate that are respectively detachably and fixedly connected to the bottoms of the front and rear parts of the sliding shoe body. The track unit includes 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 in contact and cooperation with an L-shaped groove on the guiding sliding shoe with the front upper notch facing the upper rear. A step protruding backward is provided on the upper part of the rear vertical plate. The top surface of the rear vertical plate, the rear side surface and the bottom surface of the step are in contact and cooperation with a forward bilateral groove on the guiding sliding shoe with the rear upper notch. Below the track tooth sockets between the track teeth is a first material leakage channel, and below the front vertical plate, the rear vertical plate and the track teeth is a second material leakage channel. The present invention can improve the adaptability of the guiding system of the drum-type mining machine to high-hardness and high-blockiness ore materials, avoid the rapid wear and crushing of the guiding system, and has a short fault handling time.

Description

Technical Field

[0001] The invention relates to a mining machine walking meshing system, which is particularly suitable for the situation where the ore is in block shape and the existing guide sliding shoes are obviously worn, especially the bottom hook of the existing guide sliding shoes is seriously worn, and belongs to the technical field of well mining machinery. Background Art

[0002] When using a drum miner to mine high-hardness ores, the reaction force (especially impact) generated by cutting the hard ores has a great impact on the walking meshing system of the miner. In addition, the larger size of the ore puts the adaptability of the walking meshing system of the miner under severe test (the faster the contact surface wears and collapses due to eccentric load, the worse the adaptability). For example Figure 16 The walking meshing system of the existing structure shown in the figure, when encountering high-hardness and large-block accumulations on the track that cannot be effectively discharged, the walking gear teeth are unable to break the rocks in time, and the guide shoes are stuck by the rocks, resulting in severe wear and crushing of the meshing system, which significantly reduces the life of the walking meshing system and significantly prolongs the time required for fault handling, seriously affecting the economic efficiency of mining.

[0003] In response to the above problems, the industry has proposed increasing the thickness and length of the wear-resistant layer of the contact surface of the guide shoe of the mining machine, and taking further surface hardening measures on the rail contact surface. Although these measures have improved and increased the service life of the existing mining machine travel engagement system to a certain extent, the above problems have not been fundamentally solved, and still affect the travel speed of the mining machine, and are still an important factor restricting production capacity and economic mining. Summary of the invention

[0004] The purpose of the present invention is to provide a mining machine walking meshing system that is suitable for blocky mineral materials, which can solve the problem of adaptability of the walking meshing system of a drum mining machine to high-hardness and high-block mineral materials, avoid rapid wear and crushing of the walking meshing system under such conditions, and greatly shorten the fault handling time.

[0005] The main technical solutions of the present invention are:

[0006] A walking engagement system for a mining machine adapted to blocky ore materials, comprising a track unit and a guiding sliding shoe straddling the track unit and forming a left-right direction sliding connection structure with the track unit. The guiding sliding shoe includes a sliding shoe body, a sliding shoe bottom plate and a sliding shoe rear plate. The sliding shoe bottom plate and the sliding shoe rear plate are respectively detachably and fixedly connected to the bottom of the front part and the bottom of the rear part of the sliding shoe body. The sliding shoe body is provided with a front-side wear-resistant layer and a rear-top wear-resistant layer. The sliding shoe bottom plate is provided with a front-bottom wear-resistant layer. The sliding shoe rear plate is provided with 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 connected end to end in sequence to form an L-shaped groove with the notch facing the upper rear. The rear-top wear-resistant layer, the rear-side wear-resistant layer and the rear-bottom wear-resistant layer are connected end to end in sequence to form a double-sided groove with the notch facing forward. The track unit includes a front vertical plate, a rear vertical plate and a plurality of track teeth distributed at intervals left and right and connected between the front vertical plate and the rear vertical plate. The bottom surface and the front side surface of the front vertical plate are both set as hardened surfaces and are respectively in contact and cooperation with the front-bottom wear-resistant layer and the front-side wear-resistant layer of the guiding sliding shoe. The upper part of the rear vertical plate is provided with a step protruding backward. 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 as hardened surfaces and are respectively in contact and cooperation with the rear-top wear-resistant layer, the rear-side wear-resistant layer and the rear-bottom wear-resistant layer of the guiding sliding shoe. A material leakage guiding surface inclined with the front low and the rear high is arranged below the guiding sliding shoe. The space between adjacent track teeth is a track tooth socket. The track tooth socket and the space extending forward and downward along the interlayer between the sliding shoe bottom plate and the material leakage guiding surface from the lower opening of the track tooth socket form a first material leakage channel. The space extending forward and downward continuously along the interlayer between the sliding shoe rear plate, the rear vertical plate, the track teeth, the front vertical plate, the sliding shoe bottom plate and the material leakage guiding surface from below the step forms a second material leakage channel.

[0007] The front side surface and the rear side surface of the track tooth socket are both surfaces extending vertically, or the front-back width of the track tooth socket is narrow at the top and wide at the bottom.

[0008] The top surface of the front vertical plate is lower than the top surface of the rear vertical plate. The tooth top surface of the track tooth is an inclined tooth top surface with the front low and the rear high. The lower bottom surface of the track tooth is an inclined lower bottom surface with the front low and the rear high. Or, a front-top wear-resistant layer is further arranged on the sliding shoe body. The top surface of the front vertical plate is set as a hardened surface and is in contact and cooperation 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. The height of the step is less than the height of the front vertical plate.

[0009] The sliding shoe rear plate and the rear part of the sliding shoe body are fastened by a plurality of short screws with the screw heads facing upward. The sliding shoe bottom plate and the front part of the sliding shoe body are fastened by a plurality of long screws in cooperation with nuts with the screw heads facing downward.

[0010] The rear plate of the slipper is positioned with respect to the rear part of the slipper body by a horizontal plane, a vertically extending vertical plane extending left and right, and a plurality of rear plate connecting pins vertically arranged and passing through the horizontal plane. The bottom plate of the slipper is positioned with respect to the front part of the slipper body by a horizontal plane and a plurality of bottom plate connecting pins vertically arranged and passing through the horizontal plane.

[0011] A plurality of track units are arranged in sequence from left to right. One end of each adjacent two track units that are close to each other is connected by the same track. The middle part of the front of the track seat is arranged as an inclined surface that is lower in the front and higher in the rear.

[0012] Below the left and right ends of the rear vertical plate, there are respectively downwardly extending connecting ears. The rear vertical plate is connected to adjacent two track seats through the left and right two connecting ears. The bottom of the rear vertical plate and the top of the connecting ear are connected by a transition section that extends obliquely backward and downward. The top of the transition section extends forward to the lower bottom surfaces of the leftmost and rightmost track teeth of the track unit respectively. The front side surface of the connecting ear is located behind the front side surface of the rear vertical plate. A bottom plane located in front of the corresponding connecting ear is provided on the transition section, and this bottom plane is in contact with the top surface of the front part of the track seat.

[0013] The material leakage guiding surface between adjacent track seats is composed of the top surface of the material leakage guiding plate and / or the surface on the conveying trough. The material leakage guiding surface at the track seat is composed of the top surface of the material leakage guiding plate and / or the surface on the track seat. When using the material leakage guiding plate, the material leakage guiding plate is fixedly arranged on the conveying trough.

[0014] The walking meshing system of the mining machine adapted to massive ore also includes a walking wheel that meshes with the track teeth of the track unit. The top surface of the teeth of the walking wheel is an inclined top surface with a larger diameter in the front and a smaller diameter in the rear.

[0015] The beneficial effects of the present invention are:

[0016] Due to the provision of the first material leakage channel, the tip of the tooth of the walking wheel breaks the bulk material accumulated in the track tooth socket and squeezes the broken ore into the first material leakage channel. By providing the first material leakage channel and the continuously downward second material leakage channel, it is ensured that the ore around the track unit (whether it is earthy or massive high-hardness ore) can be guided by the slipper and pushed out from the top of the track unit, slide into the conveying trough from the tooth top of the track unit, or be broken and enter the first material leakage channel downward, or small pieces of ore are directly squeezed into the conveying trough through the second material leakage channel, or the ore under the bottom surface of the step of the rear vertical plate is squeezed into the second material leakage channel by the rear plate of the slipper, avoiding the influence of ore accumulation on the walking meshing system.

[0017] By adding a sliding shoe rear plate and a rear bottom wear-resistant layer thereon, the present invention effectively balances the forces on the walking wheels by increasing the contact area of the rear bottom surface, especially in the case of a sharp increase in the meshing force (for crushing rock blocks) caused by the filling of high-hardness and large-sized ore materials in the track tooth sockets. This not only increases the contact area of the bottom force, but also balances the forces on both sides of the walking wheels, avoiding eccentric loading caused by unilateral force, high-stress contact areas caused by eccentric loading, and problems such as rapid wear and crushing.

[0018] Since thick wear-resistant layers and hardening measures are respectively adopted on the front and rear bottom contact surfaces of the guiding sliding shoe and the track unit, the reliability of the structure is further improved.

[0019] By setting the easily worn parts of the guiding sliding shoe as two independent parts, namely the sliding shoe bottom plate and the sliding shoe rear plate, the present invention greatly improves the utilization rate and service life of the sliding shoe and reduces the use cost. At the same time, these two parts are set into a structure that is easy to disassemble and assemble, and can be directly replaced without disassembling the sliding shoe body (but it is necessary to disconnect the connection between the track unit and the conveying trough), which greatly shortens the fault handling time.

[0020] Compared with the existing structure, since only the guiding sliding shoe and the track unit in the walking meshing system of the present invention are optimized in structure, it has good overall interchangeability with the existing structure, which is convenient for upgrading and transforming a large number of existing structures under harsh working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front view of an embodiment of the present invention;

[0022] Figure 2 is Figure 1 the A-A sectional view of

[0023] Figure 3 is the front view of an embodiment of the guiding sliding shoe of the present invention;

[0024] Figure 4 is Figure 3 the top view of

[0025] Figure 5 is Figure 3 the B1-B1 sectional view of

[0026] Figure 6 is Figure 4 the B-B sectional view of

[0027] Figure 7 is Figure 4 the C-C sectional view of

[0028] Figure 8 is the longitudinal sectional view of an embodiment of the track of the present invention;

[0029] Figure 9 is the D-D sectional view of Figure 8 ;

[0030] Figure 10 is the K-K sectional view of Figure 8 ;

[0031] Figure 11 is the front view of an embodiment of the track base of the present invention;

[0032] Figure 12 is the G-G sectional view of Figure 2 ;

[0033] Figure 13 is the schematic diagram of the material leakage channel of the present invention;

[0034] Figure 14 is the schematic structural diagram of another embodiment of the track unit;

[0035] Figure 15 is the schematic diagram of the extrusion of bulk ore from the material leakage channel in the walking engagement system of the present invention;

[0036] Figure 16 is the schematic diagram of the existing walking engagement system where the accumulated material at the track cannot be effectively discharged, affecting the walking wheels and causing wear of the guiding slide shoes.

[0037] Reference numerals:

[0038] 1. Guiding slide shoe; 11. Slide shoe body; 111. Front side wear-resistant layer; 113. Rear top wear-resistant layer; 114. Front bottom plane of the slide shoe body; 115. Bottom surface of the boss; 116. Front side surface of the boss; 12. Slide shoe bottom plate; 121. Front bottom wear-resistant layer; 122. Top plane of the slide shoe bottom plate; 13. Bottom plate connecting pin; 141. Long screw; 142. Nut; 15. Slide shoe rear plate; 151. Rear side wear-resistant layer; 152. Rear bottom wear-resistant layer; 153. Bottom surface of the groove; 154. Front groove wall of the groove; 16. Rear plate connecting pin; 17. Short screw;

[0039] 2. Track unit; 21. Front vertical plate; 211. Bottom surface of the front vertical plate; 212. Side surface of the front vertical plate; 213. Top surface of the front vertical plate; 22. Rear vertical plate; 221. Top surface of the rear vertical plate; 222. Rear side surface of the step; 223. Bottom surface of the step; 224. Bottom surface of the rear vertical plate; 23. Track tooth; 230. Tooth top surface; 231. Tooth surface of the track tooth; 232. Front side surface of the track tooth socket; 233. Rear side surface of the track tooth socket; 234. Bottom surface of the track tooth; 24. Connecting ear; 241. Connecting ear hole; 242. Connecting ear support surface;

[0040] 32. Traveling wheel; 321. Gear teeth of the traveling wheel; 3211. Gear top surface of the gear teeth; 33. Traveling wheel axle; 34. Traveling part housing;

[0041] 4. Mining machine body; 41. Supporting skids;

[0042] 5. Conveying trough; 51. Shovel board; 52. Track seat; 521. Leakage port; 53. Leakage guide plate;

[0043] 81. First material leakage channel; 82. Second material leakage channel;

[0044] 91. Blocks of mineral materials that are pushed out; 92. Mineral materials that are piled up at the track unit of the existing structure. DETAILED DESCRIPTION

[0045] The present invention discloses a mining machine walking meshing system (hereinafter referred to as walking meshing system) adapted to block-shaped mineral materials, such as Figures 1-15 As shown, it includes a track unit 2 and a guide shoe 1 that spans the track unit and forms a left-right sliding connection structure with the track unit. The guide shoe includes a shoe body 11, a shoe bottom plate 12 and a shoe rear plate 15. The shoe bottom plate and the shoe rear plate are respectively detachably fixed to the bottom of the front part and the bottom of the rear part of the shoe body. The shoe rear plate is used to form the rear bottom hook part of the guide shoe. The shoe body is provided with a front side wear-resistant layer 111 and a rear top wear-resistant layer 113, the shoe bottom plate is provided with a front bottom wear-resistant layer 121, and the shoe rear plate is provided with a rear side wear-resistant layer 151 and a rear bottom wear-resistant layer 152. The front bottom wear-resistant layer 121 and the front side wear-resistant layer 111 are connected end to end in sequence to form an L-shaped groove with a notch facing the rear and upper sides, and the rear top wear-resistant layer 113 and the rear side wear-resistant layer 151 and the rear bottom wear-resistant layer 152 are connected end to end in sequence to form a double-sided groove with a notch facing forward. The track unit 2 includes a front vertical plate 21, a rear vertical plate 22, and a plurality of track teeth 23 connected between the front vertical plate and the rear vertical plate and spaced apart from each other. The bottom surface 211 and the front side surface 212 of the front vertical plate are both configured as hardened surfaces, and are in contact and cooperation with the front bottom wear-resistant layer 121 and the front side wear-resistant layer 111 of the guide shoe, respectively. The upper portion 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 are all configured as hardened surfaces, and are in contact and cooperation with the rear top wear-resistant layer 113, the rear side wear-resistant layer 151, and the rear bottom wear-resistant layer 152 of the guide shoe, respectively. The above five hardened surfaces correspond to the five wear-resistant layers one by one, wherein the thickening of the wear-resistant layer and the hardened surface are beneficial to improving the wear life of the contact surface and improving the structural reliability of the walking meshing system.

[0046] Below the guiding sliding shoe, there is a material leakage guiding surface that slopes downwards from front to back. The space between adjacent track teeth is a track tooth socket. The track tooth socket and the space extending forward and downward along the interlayer between the lower opening of the track tooth socket, the sliding shoe bottom plate, and the material leakage guiding surface form a first material leakage channel 81. The tip of the tooth of the walking wheel breaks the lumpy material accumulated in the track tooth socket and squeezes the crushed ore into the first material leakage channel. The space extending forward and downward along the interlayer between the following parts of the step, namely the sliding shoe rear plate, the rear vertical plate, the track teeth, the front vertical plate, and the sliding shoe bottom plate, and the material leakage guiding surface forms a continuously downward second material leakage channel 82. The arrangement of the first and second material leakage channels ensures that the ore around the track unit (whether it is earthy or lumpy high-hardness ore) can be pushed by the guiding sliding shoe and then pushed out from the top of the track unit, slide into the conveying trough from the tooth top of the track unit, or be broken and enter the first material leakage channel downward, or small pieces of ore are directly squeezed into the conveying trough through the second material leakage channel, or the ore under the bottom surface 223 of the rear vertical plate step is squeezed into the second material leakage channel by the sliding shoe rear plate 15, avoiding the influence of ore accumulation on the walking meshing system. The ore flowing out from the first and second material leakage channels finally enters the conveying trough 5. The lower bottom surface 234 of the track teeth is an inclined surface that slopes downwards from front to back, and it forms the top of the second material leakage channel together with the bottom surface 224 of the rear vertical plate. Comparison Figure 15 and 16 It can be seen that when the walking meshing system of the present invention is adopted, the lumpy ore 91 such as that pushed and discharged can smoothly enter the conveying trough, while when the walking meshing system with the existing structure is adopted, the ore 92 accumulates at the track unit and cannot be effectively discharged.

[0047] By adding the sliding shoe rear plate and the rear bottom wear-resistant layer thereon, it is equivalent to increasing the contact surface of the rear bottom surface. Together with the front bottom wear-resistant layer, it effectively balances the force of the walking wheel 32. At the same time, side wear-resistant layers are provided on the front side and the rear side to provide lateral support. Under harsh working conditions, generally, a good force-bearing state of the walking wheel can be ensured, so the adaptability of the walking meshing system is improved, and finally the reliability of the walking meshing system of the mining machine is greatly improved.

[0048] There is a wear-resistant layer on the sliding shoe bottom plate, two wear-resistant layers on the sliding shoe rear plate, and two wear-resistant layers on the sliding shoe body, providing an all-round wear-resistant surface for the guiding sliding shoe at the front bottom, front side, rear bottom, rear side, and rear top, ensuring the balanced force when the walking wheel meshes with the track unit and improving the reliability of the walking meshing system.

[0049] The walking meshing system can be further optimized in one or more of the following aspects:

[0050] The front side surface 232 and the rear side surface 233 of the track tooth socket (which are also the rear side surface of the front vertical plate and the front side surface of the rear vertical plate) are both surfaces extending vertically or nearly vertically, so as to facilitate the smooth falling of the ore materials accumulated in the track tooth socket. Or the front and rear widths of the track tooth socket are narrower at the top and wider at the bottom, which is also convenient for discharging materials.

[0051] As Figure 8 shown, the top surface of the front vertical plate can be lower than that of the rear vertical plate. Correspondingly, the bottom surface of the front vertical plate is lower than the bottom surface of the rear vertical plate. The tooth top surface 230 of the track tooth is an inclined tooth top surface that is lower at the front and higher at the rear, providing guidance for the falling of large ore pieces and their entry into the conveying trough 5 from the front of the track unit. The lower bottom surface 234 of the track tooth is an inclined lower bottom surface that is lower at the front and higher at the rear. The track unit is integrally arranged in such an inclined structure with the front lower and the rear higher, which can form a wider material leakage space inside the track tooth socket and below the track unit, and can also guide the ore materials to move forward and downward, helping to avoid the accumulation of ore materials.

[0052] A front top wear-resistant layer can also be provided on the sliding shoe body. Correspondingly, the top surface 213 of the front vertical plate is set as a hardened surface, which contacts and cooperates 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 less than the height of the front vertical plate (see Figure 14 ). The six hardened surfaces correspond to the six wear-resistant layers one by one, forming six pairs of guiding and cooperating surfaces, which can further improve the wear life of the contact surfaces, improve the structural reliability of the walking meshing system, and the structure of the track unit is simpler.

[0053] The tooth surface 231 of the track tooth is surface-hardened, which is beneficial to ensuring the meshing effect.

[0054] The sliding shoe rear plate and the rear part of the sliding shoe body are fastened by a number of short screws 17. The heads of the short screws are arranged upward and are located in the counterbores at the rear part of the sliding shoe body. The short screws are connected to the threaded holes in the sliding shoe rear plate. The sliding shoe rear plate can be directly disassembled and assembled by screwing the short screws from the top. The sliding shoe bottom plate and the front part of the sliding shoe body are fastened by a number of long screws 141 in cooperation with nuts 142. The heads of the long screws are arranged downward. The heads of the long screws are located in the counterbores of the sliding shoe bottom plate, and the nuts are located at the top. The sliding shoe bottom plate can be conveniently disassembled and assembled by screwing the long screws from the bottom.

[0055] The sliding shoe rear plate and the rear part of the sliding shoe body are positioned by a horizontal plane, a vertically extending horizontal plane, and a number of rear plate connecting pins 16 arranged vertically through the horizontal plane. In this embodiment, as Figure 5As shown, a bottom boss is provided at the rear of the shoe body, and a groove that is in concave-convex fit with the boss is provided on the top surface of the shoe rear plate. That is, the bottom surface 115 of the boss and the groove bottom surface 153 of the groove are in contact with each other to form a main positioning plane, and the front side surface 116 of the boss and the front groove wall 154 of the groove are in contact with each other to form an auxiliary positioning plane for providing auxiliary lateral support.

[0056] The shoe bottom plate and the front part of the shoe body are positioned by a horizontal plane and a plurality of bottom plate connection pins 13 vertically arranged through the horizontal plane. In this embodiment, as Figure 5 shown, the front bottom plane 114 of the shoe body and the top plane 122 of the shoe bottom plate are in contact with each other to form a horizontal plane positioning surface.

[0057] A plurality of track units are arranged in sequence from left to right to form a track. Two adjacent track units share a track seat 52, and the sharing method is that the mutually approaching ends are installed on the same track seat, one on the left and one on the right. One of the two pin holes on the left and right of the track seat is a circular hole, and the other is a long hole with a horizontally arranged long axis to ensure that the track unit has a small amount of lateral play relative to the track seat. The middle part of the front of the track seat is set as a concave notch, and the top surface of the concave notch is set as an inclined surface that is lower in the front and higher in the rear. This surface can be called a material leakage port 521 to facilitate the discharge of materials from the first material leakage channel and the second material leakage channel between two adjacent track units. The long strip-shaped space between two adjacent track seats in the installed state is used for the discharge of materials from the first material leakage channel and the second material leakage channel corresponding to the middle part of each track unit.

[0058] Connecting ears 24 extending downward are respectively provided below the left and right ends of the rear vertical plate. The rear vertical plate is connected to two adjacent track seats through a pin shaft and the left and right connecting ears. The bottom of the rear vertical plate and the top of the connecting ear are connected through a transition section that extends obliquely backward and downward. The tops of the two transition sections extend forward to the lower bottom surfaces of the leftmost and rightmost track teeth of the track unit respectively. The front side surface of the connecting ear is located behind the front side surface of the rear vertical plate, so that the main body part of the track unit composed of the front vertical plate, the rear vertical plate and the track teeth is in a state of overhanging forward and upward relative to the connecting ear, so as to create a larger material leakage and discharge space below the main body of the track unit. The upper end of the transition section is connected to the lower bottom surface of the corresponding outermost track tooth on the track unit, playing a role in strengthening the structure. A bottom plane is provided on the transition section at a position above and in front of the corresponding connecting ear, which can be called a connecting ear support surface 242. In the installed state, the connecting ear support surface is in contact with the front top surface of the track seat. This support surface 242 mainly bears the downward bending moment of the overhanging track unit and provides up and down support in contact with the connecting ear of the track seat.

[0059] The walking engagement system of the mining machine adapted to massive ore also includes a conveying trough 5. The track base is fixed on the rear trough wall of the conveying trough 5, specifically by pin-hinged connections between the connection ear holes 241 of the left and right connection ears of the rear vertical plate and the rear trough wall respectively.

[0060] The material leakage guiding surface between adjacent track bases can be constituted by the top surface of the material leakage guiding plate 53 and / or the upper surface of the conveying trough. The material leakage guiding surface at the track base can be constituted by the top surface of the material leakage guiding plate 53 and / or the upper surface of the track base. When using the material leakage guiding plate, the material leakage guiding plate is fixedly arranged on the conveying trough. In this embodiment, the material leakage guiding plate is welded on the conveying trough. The material leakage guiding surface generally avoids the position of the connection ear and extends in both the front and rear directions of the connection ear.

[0061] The material leakage guiding surface between adjacent two track bases can be continuous front and rear, and the material leakage guiding surface at the track base is separately arranged in front of and behind the track base.

[0062] The walking engagement system of the mining machine adapted to massive ore also includes a walking wheel 32 meshing with the track teeth 23 of the track unit. The tooth top surface 3211 of the teeth of the walking wheel 321 is preferably an inclined tooth top surface with a larger diameter at the front and a smaller diameter at the rear, which can provide guidance for large pieces of ore to fall into the conveying trough.

[0063] The walking wheel is sleeved and installed on the walking wheel shaft 33. The front and rear ends of the walking wheel shaft are supported on the walking part housing 34. The front and rear parts of the sliding shoe body are penetrated through the walking wheel shaft and are respectively located on the front and rear sides of the walking wheel. The disassembly and assembly of the sliding shoe rear plate and the sliding shoe bottom plate do not require the prior disassembly and assembly of the walking wheel 32 and the walking wheel shaft 33 and can be directly replaced, ensuring the high efficiency of the replacement of vulnerable parts.

[0064] The conveying trough also includes a shovel plate 51. The shovel plate is located at the front of the conveying trough. The walking wheel shaft is installed at the rear of the mining machine body 4. The rear part of the mining machine body is supported on the track through a guiding sliding shoe, and the front part of the mining machine is supported on the shovel plate 51 through a supporting sliding shoe 41, thereby realizing the guiding connection between the mining machine and the conveying trough.

[0065] In this article, when the mining machine is working, the direction close to the ore wall to be mined is the front, and the direction away from the ore wall to be mined is the rear.

Claims

1. A walking meshing system of a mining machine adapted to massive ore materials, characterized in that: It includes a track unit and a guiding sliding shoe straddling the track unit and forming a left-right direction sliding connection structure with the track unit. The guiding sliding shoe includes a sliding shoe body, a sliding shoe bottom plate and a sliding shoe rear plate. The sliding shoe bottom plate and the sliding shoe rear plate are respectively detachably and fixedly connected to the bottom of the front part and the bottom of the rear part of the sliding shoe body. The sliding shoe body is provided with a front-side wear-resistant layer and a rear-top wear-resistant layer. The sliding shoe bottom plate is provided with a front-bottom wear-resistant layer. The sliding shoe rear plate is provided with 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 connected end to end in sequence to form an L-shaped groove with the notch facing the upper rear. The rear-top wear-resistant layer, the rear-side wear-resistant layer and the rear-bottom wear-resistant layer are connected end to end in sequence to form a double-sided groove with the notch facing forward. The track unit includes a front vertical plate, a rear vertical plate and a plurality of track teeth distributed at intervals left and right and connected between the front vertical plate and the rear vertical plate. The bottom surface and the front side surface of the front vertical plate are both set as hardened surfaces and are respectively in contact and cooperation with the front-bottom wear-resistant layer and the front-side wear-resistant layer of the guiding sliding shoe. The upper part of the rear vertical plate is provided with a step protruding backward. 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 as hardened surfaces and are respectively in contact and cooperation with the rear-top wear-resistant layer, the rear-side wear-resistant layer and the rear-bottom wear-resistant layer of the guiding sliding shoe. A material leakage guiding surface inclined with the front low and the rear high is arranged below the guiding sliding shoe. The space between adjacent track teeth is a track tooth socket. The track tooth socket and the space extending forward and downward along the interlayer between the sliding shoe bottom plate and the material leakage guiding surface from the lower opening of the track tooth socket form a first material leakage channel. The space extending forward and downward continuously along the interlayer between the sliding shoe rear plate, the rear vertical plate, the track teeth, the front vertical plate, the sliding shoe bottom plate and the material leakage guiding surface from below the step forms a second material leakage channel.

2. The walking meshing system of a mining machine adapted to massive ore materials according to claim 1, characterized in that: The front side surface and the rear side surface of the track tooth socket are both surfaces extending vertically, or the front and rear widths of the track tooth socket are narrower at the top and wider at the bottom.

3. The walking meshing system of a mining machine adapted to massive ore materials according to claim 1, characterized in that: The top surface of the front vertical plate is lower than the top surface of the rear vertical plate. The tooth top surface of the track tooth is an inclined tooth top surface with the front low and the rear high. The lower bottom surface of the track tooth is an inclined lower bottom surface with the front low and the rear high. Or, a front-top wear-resistant layer is further arranged on the sliding shoe body. The top surface of the front vertical plate is set as a hardened surface and is in contact and cooperation 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. The height of the step is less than the height of the front vertical plate.

4. The walking meshing system of a mining machine adapted to massive ore materials according to claim 1, characterized in that: The sliding shoe rear plate and the rear part of the sliding shoe body are fastened by a plurality of short screws with the screw heads facing upward. The sliding shoe bottom plate and the front part of the sliding shoe body are fastened by a plurality of long screws in cooperation with nuts with the screw heads facing downward.

5. The walking meshing system of a mining machine adapted to massive ore materials according to claim 1, characterized in that: The positioning between the rear plate of the shoe and the rear part of the shoe body is carried out by a horizontal plane, a vertical plane extending left and right, and several rear plate connecting pins vertically arranged and passing through the horizontal plane. The positioning between the bottom plate of the shoe and the front part of the shoe body is carried out by a horizontal plane and several bottom plate connecting pins vertically arranged and passing through the horizontal plane.

6. The traveling engagement system of a mining machine adapted to massive ore as described in claim 1, 2, 3, 4 or 5, characterized in that: A plurality of track units are arranged in sequence from left to right. One end of each adjacent two track units close to each other is connected by the same track seat. The middle part of the front of the track seat is arranged as an inclined surface with a lower front and a higher rear.

7. The traveling engagement system of a mining machine adapted to massive ore as described in claim 6, characterized in that: Connecting ears extending downward are respectively provided below the left and right ends of the rear vertical plate. The rear vertical plate is connected to two adjacent track seats through the left and right connecting ears. The bottom of the rear vertical plate and the top of the connecting ear are connected by a transition section extending obliquely backward and downward. The tops of the two transition sections extend forward to the lower bottom surfaces of the leftmost and rightmost track teeth of the track unit respectively. The front side surface of the connecting ear is located behind the front side surface of the rear vertical plate. A bottom plane located in front of the corresponding connecting ear is provided on the transition section, and this bottom plane is in contact with the top surface of the front part of the track seat.

8. The traveling engagement system of a mining machine adapted to massive ore as described in claim 6, characterized in that: It further includes a conveying trough. The track seat is fixed on the rear trough wall of the conveying trough, and the material leakage guiding surface is fixed relative to the conveying trough.

9. The traveling engagement system of a mining machine adapted to massive ore as described in claim 6, characterized in that: The material leakage guiding surface between adjacent track seats is composed of the top surface of the material leakage guiding plate and / or the upper surface of the conveying trough. The material leakage guiding surface at the track seat is composed of the top surface of the material leakage guiding plate and / or the upper surface of the track seat. When using the material leakage guiding plate, the material leakage guiding plate is fixedly arranged on the conveying trough.

10. The traveling engagement system of a mining machine adapted to massive ore as described in claim 1, 2, 3, 4 or 5, characterized in that: It further includes a traveling wheel meshing with the track teeth of the track unit. The top surface of the teeth of the traveling wheel is an inclined top surface with a larger front diameter and a smaller rear diameter.

11. The traveling engagement system of a mining machine adapted to massive ore as described in claim 6, characterized in that: It further includes a traveling wheel meshing with the track teeth of the track unit. The top surface of the teeth of the traveling wheel is an inclined top surface with a larger front diameter and a smaller rear diameter.

12. The traveling engagement system of a mining machine adapted to massive ore as described in claim 7, characterized in that: It further includes a traveling wheel meshing with the track teeth of the track unit. The top surface of the teeth of the traveling wheel is an inclined top surface with a larger front diameter and a smaller rear diameter.

13. The traveling engagement system of a mining machine adapted to massive ore as described in claim 8, characterized in that: It further includes a traveling wheel meshing with the track teeth of the track unit. The top surface of the teeth of the traveling wheel is an inclined top surface with a larger front diameter and a smaller rear diameter.

14. The traveling meshing system of a mining machine adapted to massive ore materials as claimed in claim 9, characterized in that: it further comprises a traveling wheel meshing with the track teeth of the track unit, and the tooth top surface of the teeth of the traveling wheel is an inclined tooth top surface with a larger diameter at the front and a smaller diameter at the rear.

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