Coal gangue protection equipment and methods between frames in high-angle working face

Abstract

The present invention belongs to the field of coal mining equipment, and specifically relates to a coal gangue protection device and method between frames of a high-angle working face, comprising: an intercepting frame, a rolling gangue buffer mechanism, a rigid guard frame mechanism, and a diverter seat mechanism; a lower notch for inserting and installing a raw coal conveyor belt is provided in the middle of the bottom of the intercepting frame, and an upper notch for installing two rigid guard frame mechanisms is provided in the middle of the top of the intercepting frame. The outer ends of the two rigid guard frame mechanisms are relatively connected to the two ends of the upper notch for rotation, and the inner ends of the two rigid guard frame mechanisms are relatively connected to the diverter seat mechanism in the middle of the upper notch; the lower end of the front side of the intercepting frame is relatively connected to two rolling gangue buffer mechanisms, and the two rolling gangue buffer mechanisms are located on both sides of the lower notch. By arranging the intercepting frame and the corresponding buffer and intercepting mechanisms above the raw coal conveyor belt, the safety risks caused by rolling gangue splashing are effectively prevented, the safety of workers is protected, and the accident rate in the working environment is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of coal mining equipment, and in particular relates to coal gangue protection equipment and method between frames of a large-angle working face. Background Art

[0002] my country classifies coal seams into three categories based on their inclination: gently inclined, inclined, and steeply inclined. Coal seams with inclinations between 35 and 55 degrees are called steep-angle coal seams. Due to their steep inclinations, steep-angle coal seams are recognized as difficult to mine both domestically and internationally. After years of continuous mining in shallow, near-horizontal or gently inclined coal seams, their coal resources are nearing exhaustion. Consequently, many regions have been forced to shift from mining in seams with favorable geological conditions to mining in complex, steep-angle or steeply inclined seams. During fully mechanized top-coal caving mining of steep-angle, extra-thick coal seams, large pieces of gangue often roll down as the shearer descends to cut coal, due to the low strength of the coal seam and the immediate roof, and the steep inclination of the coal seam. This can easily cause rolling and flying gangue hazards on the working face, hindering effective safety assurance at the working face and making accidents more likely. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to provide a coal gangue protection device and method between frames of a large-angle working face.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] The coal gangue protection equipment between frames of the high-inclination working face includes: an intercepting frame, a rolling gangue buffer mechanism, a rigid guard frame mechanism and a diverter seat mechanism; a lower slot for passing and installing the raw coal conveyor belt is provided in the middle of the bottom of the intercepting frame, and an upper slot for installing two rigid guard frame mechanisms is provided in the middle of the top of the intercepting frame, the outer ends of the two rigid guard frame mechanisms are connected to the two ends of the upper slot for relative rotation, and the inner ends of the two rigid guard frame mechanisms are relatively connected to the diverter seat mechanism in the middle of the upper slot; the lower end of the front side of the intercepting frame is relatively connected to the two rolling gangue buffer mechanisms, and the two rolling gangue buffer mechanisms are located on both sides of the lower slot.

[0006] Preferably, the rolling gangue buffer mechanism includes: a gangue baffle, which is fixed at the front end of the rectangular slide rod, and the middle part of the rectangular slide rod is slidably fitted in the front and rear through holes of the interception frame, and the gangue baffle and the interception frame are connected by a buffer spring sleeved on the rectangular slide rod; the top of the gangue baffle is rotatably connected to the lower end of the guide baffle, which is rotatably connected to the hinge shaft at the upper end of the guide baffle, and the T-type slider is slidably connected to the T-type slide rail longitudinally arranged on the front side of the interception frame.

[0007] Preferably, a side guide plate inclined toward the downward notch is provided at the inner end of the gangue baffle, and a reinforcing slide provided at the rear end of the side guide plate is slidably engaged with a reinforcing guide plate provided on the front side of the intercepting frame.

[0008] Preferably, the rear end of the rectangular slide rod is fixed with a block for being clamped on the rear side of the intercepting frame, and a cylindrical top rod is provided on the rear side of the block. A limited support is fixed on the rear side of the intercepting frame, and the limited support is slidably connected to the middle part of the front and rear sliding shafts. A tensioning spring is fixed between the disc seat at the front end of the front and rear sliding shafts and the limit support, and the distance adjusting nut threadedly connected to the front and rear sliding shafts is clamped and fitted on the rear side of the limit support; the alarm button arranged on the front side of the disc seat is arranged opposite to the cylindrical top rod, and the annular protective shell on the front side of the fixed disc seat is arranged on the outside of the alarm button, and the front side of the annular protective shell is provided with a guide port that slides with the cylindrical top rod.

[0009] Preferably, the rolling gangue buffer mechanism also includes: a horizontal column fixed on the limit support, a piston disc fixed on the front end of the horizontal column seal sliding in an air storage chamber opened on the rear side of the rectangular slide rod, the air storage chamber is connected to the air pipe fixed in the air inlet and exhaust holes on the front end of the rectangular slide rod, and the front end of the air pipe is connected and communicated with multiple rubber air bags evenly surrounded and fixed on the front side of the coal gangue baffle through multiple alloy pipes.

[0010] Preferably, the top of the lower notch is connected to the lifting slide provided on the intercepting frame, the lower end of the intercepting door panel slidably connected in the lifting slide is inserted into the lower notch, and the lifting slider fixed on the rear side of the intercepting door panel slides in the limiting groove on the rear side of the intercepting frame, and the bottom of the intercepting door panel is rotatably connected to the first roller, and the first roller is connected to the second roller through a guide belt, and the first roller and the second roller are rotatably connected to the two ends of the reinforcement frame respectively, and the reinforcement frame is passed through the inner side of the guide belt; the second roller is rotatably connected to the front end of the front and rear slides, and the rear end of the front and rear slides slides in the horizontal slide of the front and rear slides, and a plurality of front and rear springs are fixed between the rear end of the front and rear slides and the inner side surface of the horizontal slide of the front and rear slides.

[0011] Preferably, the second roller is rotatably connected to the lower end of the central guide plate, and the upper end of the central guide plate is rotatably connected to the hinge shafts of the two rolling rock buffer mechanisms.

[0012] Preferably, the rigid guard frame mechanism includes: a guard frame body, a rigid protective net is installed on the inner side of the guard frame body, and the outer end of the guard frame body is rotatably connected to the upper slot of the interception frame; the diverter seat mechanism includes: a center seat fixed in the middle of the upper slot of the interception frame, a triangular diverter seat is provided at the front end of the center seat, and the left and right ends of the rear side surface of the triangular diverter seat are respectively connected to the connecting frame through multiple buffer tension springs, and the connecting shaft fixed on the connecting frame is passed through the longitudinal connecting hole at the inner end of the guard frame body.

[0013] Preferably, the coal gangue protection equipment between the frames of the high-angle working face also includes: a flexible protective net; the flexible protective net is installed on the rear side of the interception frame, and is protected and matched with the rear side of the two rigid guard frame mechanisms, and is used to intercept the coal gangue falling from the buffer port between the rigid guard frame mechanism and the diverter seat mechanism.

[0014] The protection method is applicable to the coal gangue protection equipment between the frames of the large-angle working face, and the method comprises the following steps:

[0015] Install the interception frame at the preset separation area, connect the interception frame to the ground, and set the lower notch above the raw coal conveyor belt to form a conveying port between the raw coal conveyor belt and the lower notch;

[0016] When the rolling waste falls at a relatively stable speed, the rolling waste contacts the rolling waste buffer mechanism at the lower end of the front side of the interception frame, and the rolling waste buffer mechanism buffers and intercepts the rolling waste in contact with it;

[0017] When the rolling gangue falls at a fast speed and splashes at a high height, the rolling gangue contacts the rigid guard frame mechanism and is buffered and intercepted by the cooperation of the rigid guard frame mechanism and the diverter seat mechanism;

[0018] When the intercepted amount reaches the preset cleaning requirement, the intercepted rolling gangue is cleaned.

[0019] The present invention includes the following beneficial effects:

[0020] In the coal gangue protection equipment and method between frames of the high-angle working face of the present invention, by arranging an interception frame and a corresponding buffering and intercepting mechanism above the raw coal conveyor belt, the safety risks caused by the splashing of rolling gangue are effectively prevented, the safety of the workers is protected, and the accident rate in the working environment is reduced; the design can adapt to the falling of rolling gangue at different speeds and heights, and can effectively buffer and intercept regardless of the falling speed of the rolling gangue, and can maintain good performance under different working conditions, with wide applicability; the design of forming a conveying port between the lower trough and the raw coal conveyor belt ensures the normal transportation of coal while also being able to intercept rolling gangue, thereby achieving dual guarantees of production efficiency and safety.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0023] Figure 1 Schematic diagram of coal gangue protection equipment between frames of large-angle working face provided by the embodiment of the present invention Figure 1 ;

[0024] Figure 2 Schematic diagram of coal gangue protection equipment between frames of large-angle working face provided by the embodiment of the present invention Figure 2 ;

[0025] Figure 3A schematic diagram of an interception frame provided in an embodiment of the present invention;

[0026] Figure 4 Schematic diagram of the rolling gangue buffer mechanism provided by the embodiment of the present invention Figure 1 ;

[0027] Figure 5 Schematic diagram of the rolling gangue buffer mechanism provided by the embodiment of the present invention Figure 2 ;

[0028] Figure 6 A partial cross-sectional view of a rolling gangue buffer mechanism provided in an embodiment of the present invention;

[0029] Figure 7 A schematic diagram of a rigid guard frame mechanism provided in an embodiment of the present invention;

[0030] Figure 8 A schematic diagram of a diverter seat mechanism provided in an embodiment of the present invention;

[0031] Figure 9 Schematic diagram of the intercepting door panel provided by the embodiment of the present invention Figure 1 ;

[0032] Figure 10 Schematic diagram of the intercepting door panel provided by the embodiment of the present invention Figure 2 ;

[0033] Figure 11 A partial schematic diagram of an intercepting door panel provided in an embodiment of the present invention.

[0034] Icons: Interceptor frame 100; Gangue buffer mechanism 200; Gangue baffle 201; Rectangular slide bar 202; Buffer spring 203; Guide baffle 204; Articulated shaft 205; T-shaped slider 206; Side guide plate 207; Reinforced slide 208; Reinforced guide plate 209; Block 210; Cylindrical mandrel 211; Limit support 212; Front and rear slide shafts 213; Disc seat 214; Tensioning spring 215; Adjustment nut 216; Annular protective shell 217; Horizontal column 218; Gas storage chamber 219; air pipe 220; alloy pipe 221; rubber airbag 222; rigid guard frame mechanism 300; diverter seat mechanism 400; center seat 401; triangular diverter seat 402; buffer tension spring 403; connecting frame 404; connecting shaft 405; intercepting door panel 500; lifting slider 501; first roller 502; guide belt 503; second roller 504; reinforcing frame 505; front and rear slides 506; front and rear slides 507; center guide plate 508; flexible protective net 600. DETAILED DESCRIPTION

[0035] The following description and accompanying drawings sufficiently illustrate the specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for portions and features of other embodiments. The scope of the embodiments herein includes the entire scope of the claims, including all available equivalents thereof. Herein, the terms "first," "second," and the like are used solely to distinguish one element from another and do not require or imply any actual relationship or order between these elements. In practice, the first element can also be referred to as the second element, and vice versa. Furthermore, the terms "comprise," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a structure, device, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such structure, device, or apparatus. Without further limitation, an element defined by the phrase "comprising a..." does not preclude the presence of other identical elements in the structure, device, or apparatus comprising the element. The various embodiments herein are described in a progressive manner, with each embodiment focusing on its differences from the other embodiments. Similar or identical parts between the various embodiments can be referenced to each other.

[0036] The terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used herein to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are intended only to facilitate the description of this document and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In the description herein, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, they can be mechanical or electrical connections, or they can be internal connections between two elements, they can be directly connected, or they can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0037] As used herein, unless otherwise specified, the term "plurality" means two or more.

[0038] In this document, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0039] In this article, the term "and / or" is used to describe the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0040] In the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0041] The following is combined with Figure 1-11 The present invention is described in further detail.

[0042] Example 1

[0043] Please see the attached Figure 1-11 As shown, the coal gangue protection equipment between frames of the high-inclination working face includes: an intercepting frame 100, a rolling gangue buffer mechanism 200, a rigid guard frame mechanism 300 and a diverter seat mechanism 400; a lower slot for passing and installing the raw coal conveyor belt is provided in the middle of the bottom of the intercepting frame 100, and an upper slot for installing two rigid guard frame mechanisms 300 is provided in the middle of the top of the intercepting frame 100, the outer ends of the two rigid guard frame mechanisms 300 are connected to the two ends of the upper slot by relative rotation, and the inner ends of the two rigid guard frame mechanisms 300 are relatively connected to the diverter seat mechanism 400 in the middle of the upper slot; the lower end of the front side of the intercepting frame 100 is relatively connected to the two rolling gangue buffer mechanisms 200, and the two rolling gangue buffer mechanisms 200 are located on both sides of the lower slot.

[0044] The coal gangue protection equipment between frames of the high-inclination working face of the present invention includes: an intercepting frame 100, a rolling gangue buffer mechanism 200, a rigid guard frame mechanism 300 and a diverter seat mechanism 400. When in use, the intercepting frame 100 is installed in a preset separation area, the intercepting frame 100 is connected to the ground, and the lower notch is set above the raw coal conveyor belt to form a conveying port between the raw coal conveyor belt and the lower notch; when the rolling gangue falls at a relatively stable speed, the rolling gangue contacts the rolling gangue buffer mechanism 200 at the lower end of the front side of the intercepting frame 100, and the rolling gangue buffer mechanism 200 buffers and intercepts the rolling gangue in contact with it; when the rolling gangue falls at a faster speed and the splash height is higher, the rolling gangue contacts the rigid guard frame mechanism 300, and is buffered and intercepted by the cooperation of the rigid guard frame mechanism 300 and the diverter seat mechanism 400; when the interception amount reaches the preset cleaning requirement, the intercepted rolling gangue is cleaned.

[0045] By arranging an interception frame 100 and a corresponding rolling gangue buffer mechanism 200 and a rigid guard frame mechanism 300 above the raw coal conveyor belt, the safety risks caused by coal gangue splashing are effectively prevented, the safety of the staff is protected, and the accident rate in the working environment is reduced; this design can adapt to the falling conditions of rolling gangue at different speeds and heights, and can effectively buffer and intercept the rolling gangue regardless of the falling speed, and can maintain good performance under different working conditions, with wide applicability; a design of forming a conveying port between the lower trough and the raw coal conveyor belt is adopted, which ensures the normal transportation of coal while also being able to intercept rolling gangue, achieving dual guarantees of production efficiency and safety; the rolling gangue buffer mechanism 200 and the rigid guard frame mechanism 300 are replaceable, which is convenient for daily maintenance and replacement, reduces maintenance costs, and extends the service life of the equipment; it can effectively improve the safety of coal mine work, improve production efficiency, and reduce maintenance costs.

[0046] Example 2

[0047] Please see the attached Figure 1-11As shown, the rolling gangue buffer mechanism 200 includes: a gangue baffle 201, which is fixed at the front end of a rectangular slide bar 202, and the middle part of the rectangular slide bar 202 is slidably fitted in the front and rear through holes of the interception frame 100, and the gangue baffle 201 and the interception frame 100 are connected by a buffer spring 203 sleeved on the rectangular slide bar 202; the top of the gangue baffle 201 is rotatably connected to the lower end of the guide baffle 204, and is rotatably connected to the hinge shaft 205 at the upper end of the guide baffle 204 and is rotatably connected to the T-shaped slider 206, and the T-shaped slider 206 is slidably connected to the T-shaped slide rail longitudinally arranged on the front side of the interception frame 100. When the falling gangue contacts the gangue baffle 201, an impact force is generated on the gangue baffle 201, and the gangue baffle 201 drives the rectangular slide bar 202 to slide in the front and rear through holes of the interception frame 100, and compresses the buffer spring 203 arranged on the rectangular slide bar 202, which plays a shock-absorbing and buffering role. The buffer spring 203 can absorb part of the impact energy, reduce damage to the equipment, and protect the structural integrity of the equipment. The top of the gangue baffle 201 is rotated to connect the lower end of the guide baffle 204, and the guide baffle 204 is used to drop the gangue that hits the rigid guard frame mechanism 300, and prevent the gangue from falling between the gangue baffle 201 and the interception frame 100 to affect the subsequent buffering effect. It is rotatably connected to the hinge shaft 205 at the upper end of the guide baffle 204 and is rotatably connected to the T-shaped slider 206. The T-shaped slider 206 is longitudinally arranged The T-shaped slide on the front side of the interception frame 100 is slidably connected, so that when the coal gangue baffle 201 is hit, it drives the lower end of the guide baffle 204 to move in the forward and backward directions. The upper end of the guide baffle 204 drives the T-shaped slider 206 to slide in the T-shaped slide on the front side of the interception frame 100 through the hinge shaft 205. The guide baffle 204 can adjust its position according to the movement of the coal gangue baffle 201, which helps to guide the landing point of the rolling gangue and prevent the rolling gangue from accumulating between the coal gangue baffle 201 and the interception frame 100, affecting the normal operation of the buffer mechanism; through the above-mentioned buffering and guide design, the direct impact of the rolling gangue on the equipment can be reduced, the wear and failure rate of the equipment can be reduced, thereby improving the reliability and service life of the equipment, and the effective buffering and guide design can reduce the rebound and splashing of the rolling gangue, creating a safer and cleaner working environment and reducing the risk of injury to workers.

[0048] The inner end of the gangue baffle 201 is provided with a side guide plate 207 that is inclined toward the lower notch. A reinforced slide 208 provided at the rear end of the side guide plate 207 slides with a reinforced guide plate 209 provided on the front side of the intercepting frame 100. The side guide plate 207 is inclined toward the lower notch, effectively guiding the raw coal to converge toward the center of the raw coal conveyor belt, preventing the raw coal from deviating from the center or getting stuck during transportation, ensuring that the raw coal can smoothly pass through the lower notch, thereby improving transportation efficiency. During transportation, the raw coal may get stuck due to accumulation or uneven distribution. The guiding effect of the side guide plate 207 can bring the dispersed raw coal to the center of the conveyor belt, avoiding the problem of gangue accumulating at the edge of the conveyor belt, causing jams and blockages. The sliding fit design of the reinforced slide 208 and the reinforced guide plate 209 ensures the stability of the gangue baffle 201 during movement. Even if the gangue baffle 201 moves when impacted by rolling gangue, the reinforcing slide 208 can slide smoothly on the reinforcing guide plate 209, avoiding structural interference or instability, thereby ensuring the smooth operation of the entire system.

[0049] Example 3

[0050] Please see the attached Figure 1-11As shown, the rear end of the rectangular slide 202 is fixed with a block 210 for being clamped on the rear side of the interception frame 100 to prevent the rectangular slide 202 from separating from the interception frame 100 and to prevent the coal gangue baffle 201 from separating from the interception frame 100. A cylindrical top rod 211 is provided on the rear side of the block 210. A limited support 212 is fixed on the rear side of the interception frame 100. The limited support 212 is slidably connected to the middle part of the front and rear sliding shafts 213. The disc seat 214 at the front end of the front and rear sliding shafts 213 is connected to the limited support. A tensioning spring 215 is fixedly connected between 212, and a distance adjusting nut 216 threadedly connected to the front and rear sliding shafts 213 is snap-fitted on the rear side of the limit support 212; the alarm button arranged on the front side of the disc seat 214 is arranged opposite to the cylindrical top rod 211, and the alarm button is electrically connected to the alarm, and the annular protective shell 217 on the front side of the fixed disc seat 214 is sleeved on the outside of the alarm button, and the front side of the annular protective shell 217 is provided with a guide port that slides with the cylindrical top rod 211. When the gangue baffle 201 is hit by a large amplitude, it indicates that the gangue rolling down is large or more, or the amount of gangue reaches a preset amount. At this time, the pressure on the gangue baffle 201 is relatively large, and the gangue baffle 201 drives the rectangular slide 202 to slide backward on the interception frame 100 for a large distance. When the sliding distance of the rectangular slide 202 reaches the preset distance, the rectangular slide 202 drives the cylindrical push rod 211 on the rear side of the block 210 to insert into the guide port of the annular shell 217, and can press on the front side of the disc seat 214. The alarm button is set on it, so as to sound an alarm; and the distance between the alarm button and the cylindrical top rod 211 can be adjusted according to the actual bearing pressure of the present invention or the actual situation, so as to activate the alarm under different conditions. When adjusting the distance between the two, the adjusting nut 216 is rotated to change its contact position with the front and rear sliding shafts 213, thereby adjusting the relative position of the front and rear sliding shafts 213 on the limit support 212, and compressing the tensioning spring 215 between the disc seat 214 and the limit support 212 to different degrees to meet actual needs. Through the cooperation of the alarm button and the cylindrical mandrel 211, when the gangue baffle 201 is subjected to excessive impact, an alarm can be automatically triggered, so that the operator can promptly know that the equipment may be overloaded or abnormal, and take corresponding measures to prevent accidents; by adjusting the position of the distance adjusting nut 216, the distance between the alarm button and the cylindrical mandrel 211 can be changed, and different alarm thresholds can be set according to actual needs, making the system more flexible and adaptable to various working conditions; the addition of the alarm function significantly improves the safety of the system. When the amount of rolling gangue is too large or large pieces of rolling gangue fall, the staff can be reminded to take measures in time to avoid equipment damage and personal injury. In addition, through timely alarm prompts, shutdowns and maintenance caused by equipment overload can be avoided, thereby maintaining production continuity. By integrating real-time monitoring and adjustable alarm functions, not only the safety performance of the equipment is improved, but also the adaptability and ease of use of the system are enhanced, which is of great significance for ensuring the safe and efficient operation of large-angle working faces.

[0051] The rolling gangue buffer mechanism 200 also includes: a horizontal column 218 fixed on the limiting support 212, a piston disc fixed on the front end of the horizontal column 218, which slides sealably in an air storage chamber 219 opened on the rear side of the rectangular slide rod 202, and the air storage chamber 219 is connected to an air pipe 220 fixed in the air inlet and exhaust holes at the front end of the rectangular slide rod 202. The front end of the air pipe 220 is connected and communicated with multiple rubber air bags 222 evenly surrounded and fixed on the front side of the coal gangue baffle 201 through multiple alloy pipes 221.

[0052] Since the position of the crossbar 218 fixed on the limit support 212 is fixed, when the rectangular slide bar 202 slides backward, the relative position of the rectangular slide bar 202 and the crossbar 218 changes, and the depth of the crossbar 218 inserted into the air storage chamber 219 on the rear side of the rectangular slide bar 202 increases, thereby driving the piston disc to slide in the air storage chamber 219 and pressurizing the gas in the air storage chamber 219 into the rubber airbag 222 through the air pipe 220 and the alloy pipe 221. The elastic characteristics of the rubber airbag 222 can absorb and store impact energy, playing a secondary buffering role, and after the rubber airbag 222 expands, it has a reaction force on the rolling rock. When the impact force of the rolling rock is large, the gas is compressed into the rubber airbag 222, forming a higher gas pressure; when the impact force of the rolling rock decreases, the gas in the rubber airbag 222 will flow back to the air storage chamber 219 through the air pipe 220 and the alloy pipe 221, realizing pressure release and balance; Through the gas buffering mechanism, the rubber airbag 222 can absorb and store the impact energy of the rolling gangue, further enhancing the buffering effect. Compared with simple mechanical spring buffering, the gas buffering has stronger energy absorption capacity and more stable buffering effect; the elasticity of the rubber airbag 222 can be dynamically adjusted according to the impact force of the rolling gangue. When the impact force of the rolling gangue is large, the airbag will absorb more energy; when the impact force is small, the airbag will rebound and release the stored energy, ensuring that the buffering system is always in the best working condition; the gas buffering mechanism can effectively reduce the direct impact of the rolling gangue on mechanical parts, reduce equipment wear and failure rate, and extend the service life of the equipment; through the secondary buffering effect of the gas buffering, the impact of the rolling gangue on the coal gangue baffle 201 and the interception frame 100 can be further reduced to avoid damage due to excessive impact force; in addition, the setting of the rubber airbag 222 can also reduce noise during impact and improve the safety and comfort of the working environment.

[0053] Example 4

[0054] Please see the attached Figure 1-11As shown, the top of the lower notch is connected to the lifting slide set on the intercepting frame 100, the lower end of the intercepting door panel 500 slidably connected in the lifting slide is inserted into the lower notch, and the lifting slider 501 fixed to the rear side of the intercepting door panel 500 slides and fits in the limiting groove on the rear side of the intercepting frame 100. The bottom of the intercepting door panel 500 is rotatably connected to the first roller 502, and the first roller 502 is connected to the second roller 504 through the guide belt 503. The first roller 502 and the second roller 504 are rotatably connected to the reinforcing frame 50 5, and a reinforcement frame 505 is provided on the inner side of the guide belt 503; the second roller 504 is rotatably connected to the front end of the front and rear slides 506, and the rear end of the front and rear slides 506 is slidably fitted in the transverse slideway of the front and rear slides 507, and a plurality of front and rear springs are fixed between the rear end of the front and rear slides 506 and the inner side surface of the transverse slideway of the front and rear slides 507; the second roller 504 is rotatably connected to the lower end of the central guide plate 508, and the upper end of the central guide plate 508 is rotatably connected to the hinge shaft 205 of the two roller buffer mechanisms 200.

[0055] The setting of the intercepting door plate 500 makes the opening size of the lower slot adaptively adjustable. When the amount of raw coal on the raw coal conveyor belt is large or the volume is large, a top pressure is generated on the guide belt 503 and the reinforcing frame 505, causing the guide belt 503 and the reinforcing frame 505 to move upward. When the reinforcing frame 505 moves upward, it drives the intercepting door plate 500 to slide upward, making the opening of the lower slot larger, and the reinforcing frame 505 drives the front and rear slides 506 to move forward in the horizontal slideway of the front and rear slide seats 507 through the second roller 504 and The front and rear springs are stretched, and the second roller shaft 504 is rotatably connected to the lower end of the central guide plate 508. The upper end of the central guide plate 508 is rotatably connected to the hinge shaft 205 of the two rolling gangue buffer mechanisms 200. The central guide plate 508 is used to guide the coal gangue above it to prevent the coal gangue from falling on the intercepting door plate 500 and the guide belt 503, affecting the use effect; in addition, the guide belt 503 cooperates with the raw coal conveyor belt to clamp and convey the raw coal, further improving the stability of the raw coal when passing through the lower notch; the above-mentioned invention In the scheme, the intercepting door panel 500 can slide up and down in the lifting slide and adaptively adjust the opening size of the lower slot according to the amount and volume of the raw coal; when the amount of raw coal is large or the volume is large, the guide belt 503 and the reinforcement frame 505 are subjected to top pressure, pushing the intercepting door panel 500 to slide upward, so that the opening of the lower slot becomes larger, thereby better adapting to different transportation needs; the guide belt 503 cooperates with the raw coal conveyor belt to clamp and transport the raw coal, which increases the stability and controllability of the raw coal when passing through the lower slot, which reduces the swinging and scattering of the raw coal during transportation through the lower slot, ensuring high-efficiency transportation; the adaptive adjustment function of the lower slot can effectively avoid the situation where the raw coal is stuck due to accumulation or excessively large blocks. When the amount of raw coal is large, the lower slot automatically becomes larger, reducing the possibility of blockage and ensuring a smooth transportation process; the design of the reinforcement frame 505 and the guide belt 503 not only enhances the structural stability of the system, but also reduces the direct impact of external shocks on the system through the buffering effect of sliding and springs. The cooperation between the front and rear slides 506 and the front and rear slide seats 507 enables the system to effectively absorb and disperse energy when subjected to a large impact, thereby maintaining structural stability.

[0056] Example 5

[0057] Please see the attached Figure 1-11As shown, the rigid guard frame mechanism 300 includes: a guard frame body, a rigid protective net installed inside the guard frame body, and the outer end of the guard frame body is rotatably connected to the upper slot of the intercepting frame 100; a diverter seat mechanism 400 includes: a center seat 401 fixed in the middle of the upper slot of the intercepting frame 100, a triangular diverter seat 402 is provided at the front end of the center seat 401, and the left and right ends of the rear side of the triangular diverter seat 402 are respectively connected to the connecting frame 404 via multiple buffer tension springs 403. The connecting shaft 405 fixed to the connecting frame 404 is inserted into the longitudinal connecting hole at the inner end of the guard frame body. In this solution, a rigid protective net is installed inside the guard frame body to block and disperse the impact of coal gangue. The outer end of the guard frame body is rotatably connected to the upper slot of the intercepting frame 100, allowing it to rotate when impacted. The center seat 401 is fixed in the middle of the upper notch of the intercepting frame 100, and a triangular diverter seat 402 is provided at its front end. The triangular diverter seat 402 is designed to guide the coal gangue that hits it to both sides. The rear side of the triangular diverter seat 402 is connected to the connecting frame 404 through multiple buffer springs 403. The connecting shaft 405 on the connecting frame 404 is passed through the longitudinal connecting hole in the guard frame body. When the coal gangue hits the guard frame body or the rigid protective net, the guard frame body rotates in the upper notch of the intercepting frame 100, and at the same time drives the buffer spring 403 to stretch, thereby generating a buffering effect and absorbing the impact energy. The design of the triangular diverter seat 402 makes the coal gangue that hits it Gangue is directed to both sides, avoiding concentrated impact on a single area and thus distributing the impact force more evenly. The rotation of the guard frame and the extension of the buffer spring effectively disperse and absorb the impact force of the gangue, reducing direct impact on the structure and protecting equipment and personnel. The combination of the rigid protective net and the guard frame improves the durability of the overall structure, capable of withstanding large impact loads and extending the service life of the equipment. The triangular diverter seat 402 guides the gangue to both sides, distributing it more evenly, avoiding localized accumulation and improving gangue processing efficiency. The efficient buffering and diversion design reduces equipment wear and damage, lowering maintenance frequency and costs. By dispersing impact force and optimizing gangue flow, the risk of gangue splashing is reduced, improving the safety of the working environment.

[0058] The coal gangue protection equipment between the frames of the high-angle working face also includes: a flexible protective net 600; the flexible protective net 600 is installed on the rear side of the interception frame 100, and is protected and matched with the rear side of the two rigid guard frame mechanisms 300, and is used to intercept the coal gangue falling from the buffer port between the rigid guard frame mechanism 300 and the diverter seat mechanism 400.

[0059] A small amount of rolling gangue or smaller coal gangue particles may still fall through the buffer opening between the rigid guard frame mechanism 300 and the diverter seat mechanism 400**. The flexible guard net 600, installed behind the interception frame 100, effectively intercepts the coal gangue that falls from the buffer opening, providing an additional layer of protection to prevent it from splashing into the work area and ensuring worker safety. The flexible guard net 600 covers the rear sides of the two rigid guard frame mechanisms 300, expanding the protection area and ensuring that coal gangue that may splash from the sides or rear is intercepted, thereby improving the overall protection effect. Made of a flexible material with good ductility and toughness, the flexible guard net 600 can absorb some of the impact energy, reducing rebound and secondary splashing of coal gangue. Compared to rigid materials, the flexible guard net is less susceptible to damage when impacted and can better adapt to different impact angles and forces. Furthermore, the flexible guard net 600 is easy to install and replace. If the guard net becomes worn or damaged due to long-term use, it can be easily replaced without affecting the operation of the entire protection system, reducing maintenance costs and time. The coal gangue intercepted by the flexible protective net 600 can be regularly collected and processed, reducing environmental pollution while maintaining a clean working environment, which is beneficial to production safety and environmental protection. The flexible protective net 600 plays an important auxiliary interception role in the present invention, enhancing the overall protective performance and ensuring the safety and efficiency of the working surface.

[0060] Example 6

[0061] Please see the attached Figure 1-11 As shown, the protection method is applicable to the coal gangue protection equipment between the frames of the large-angle working face, and the method includes the following steps:

[0062] Install the interception frame 100 at the preset separation area, connect the interception frame 100 to the ground, and set the lower notch above the raw coal conveyor belt to form a conveying port between the raw coal conveyor belt and the lower notch;

[0063] When the falling speed of the rolling waste is relatively stable, the rolling waste contacts the rolling waste buffer mechanism 200 at the lower end of the front side of the interception frame 100, and the rolling waste buffer mechanism 200 buffers and intercepts the rolling waste in contact with it;

[0064] When the rolling gangue falls at a high speed and splashes at a high height, the rolling gangue contacts the rigid guard frame mechanism 300 and is buffered and intercepted by the cooperation between the rigid guard frame mechanism 300 and the diverter seat mechanism 400;

[0065] When the intercepted amount reaches the preset cleaning requirement, the intercepted rolling gangue is cleaned.

[0066] In the method of the present invention, by arranging an interception frame and corresponding buffering and intercepting mechanisms above the raw coal conveyor belt, the safety risks caused by the splashing of rolling gangue are effectively prevented, the safety of the workers is protected, and the accident rate in the working environment is reduced; the design of forming a conveying port between the lower trough and the raw coal conveyor belt ensures the normal transportation of coal while also being able to intercept rolling gangue, thereby achieving dual guarantees of production efficiency and safety.

[0067] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the same or similar parts between the various embodiments. It should be noted that those skilled in the art may make various improvements and modifications to the present application without departing from the principles of the present application, and such improvements and modifications also fall within the scope of protection of the claims of the present application.

[0068] The present invention is not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. The coal gangue protection equipment between frames of the high-angle working face is characterized by: include: An interception frame (100), a rolling gangue buffer mechanism (200), a rigid guard frame mechanism (300) and a diverter seat mechanism (400); a lower notch for passing and installing a raw coal conveyor belt is provided in the middle of the bottom of the interception frame (100); an upper notch for installing two rigid guard frame mechanisms (300) is provided in the middle of the top of the interception frame (100); the outer ends of the two rigid guard frame mechanisms (300) are relatively rotatably connected to the two ends of the upper notch, and the inner ends of the two rigid guard frame mechanisms (300) are relatively connected to the diverter seat mechanism (400) in the middle of the upper notch; the lower end of the front side of the interception frame (100) is relatively connected to the two rolling gangue buffer mechanisms (200), and the two rolling gangue buffer mechanisms (200) are located on both sides of the lower notch; The gangue buffer mechanism (200) comprises: a gangue baffle (201), the gangue baffle (201) being fixed to the front end of a rectangular slide bar (202), the middle portion of the rectangular slide bar (202) being slidably fitted in the front and rear through holes of the interception frame (100), the gangue baffle (201) and the interception frame (100) being connected via a buffer spring (203) sleeved on the rectangular slide bar (202); the top of the gangue baffle (201) being rotatably connected to the lower end of the guide baffle (204), being rotatably connected to a hinge shaft (205) at the upper end of the guide baffle (204), and being rotatably connected to a T-shaped slide block (206), the T-shaped slide block (206) being slidably connected to a T-shaped slide rail longitudinally arranged on the front side of the interception frame (100); The rear end of the rectangular slide bar (202) is fixed with a block (210) for being fixed on the rear side of the interception frame (100), and a cylindrical top rod (211) is provided on the rear side of the block (210). A limited support (212) is fixed on the rear side of the interception frame (100), and the limited support (212) is slidably connected to the middle of the front and rear sliding shafts (213). A tension spring (214) is fixed between the front end of the front and rear sliding shafts (213) and the limited support (212). 215), the distance adjustment nut (216) threadedly connected to the front and rear sliding shafts (213) is snap-fitted on the rear side of the limit support (212); the alarm button provided on the front side of the disc seat (214) is arranged opposite to the cylindrical top rod (211), and the annular protective shell (217) on the front side of the fixed disc seat (214) is sleeved on the outside of the alarm button, and the front side of the annular protective shell (217) is provided with a guide opening that slides with the cylindrical top rod (211); The rigid guard frame mechanism (300) comprises: a guard frame body, a rigid protective net is installed on the inner side of the guard frame body, and the outer end of the guard frame body is rotatably connected to the upper notch of the interception frame (100); the diverter seat mechanism (400) comprises: a central seat (401) fixed in the middle of the upper notch of the interception frame (100), a triangular diverter seat (402) is provided at the front end of the central seat (401), and the left and right ends of the rear side surface of the triangular diverter seat (402) are respectively connected to the connecting frame (404) through multiple buffer tension springs (403), and a connecting shaft (405) fixed on the connecting frame (404) is inserted into the longitudinal connecting hole at the inner end of the guard frame body.

2. The coal gangue protection equipment between frames of a high-angle working face according to claim 1 is characterized in that: A side guide plate (207) inclined toward the downward notch is provided at the inner end of the gangue baffle (201), and a reinforcing slide (208) provided at the rear end of the side guide plate (207) is slidably engaged with a reinforcing guide plate (209) provided on the front side of the interception frame (100).

3. The coal gangue protection equipment between frames of a high-angle working face according to claim 1 is characterized in that: The gangue buffer mechanism (200) further comprises: a transverse column (218) fixed on the limiting support (212); a piston disc fixed on the front end of the transverse column (218) slidingly sealingly in an air storage chamber (219) opened on the rear side of the rectangular slide bar (202); the air storage chamber (219) communicating with an air pipe (220) fixed in the air inlet and outlet holes at the front end of the rectangular slide bar (202); and a front end of the air pipe (220) connecting and communicating with a plurality of rubber air bags (222) uniformly surrounding and fixed on the front side of the gangue baffle (201) through a plurality of alloy pipes (221).

4. The coal gangue protection equipment between frames of a high-angle working face according to claim 3 is characterized in that: The top of the lower notch is connected to a lifting slide provided on the intercepting frame (100); the lower end of the intercepting door panel (500) slidably connected in the lifting slide is inserted into the lower notch; the lifting slider (501) fixed on the rear side of the intercepting door panel (500) slides and fits in the limiting groove on the rear side of the intercepting frame (100); the bottom of the intercepting door panel (500) is rotatably connected to the first roller (502); the first roller (502) is connected to the second roller (504) through the guide belt (503) The first roller (502) and the second roller (504) are rotatably connected to the two ends of the reinforcing frame (505), and the reinforcing frame (505) is passed through the inner side of the guide belt (503); the second roller (504) is rotatably connected to the front end of the front and rear slides (506), and the rear ends of the front and rear slides (506) are slidably fitted in the transverse slides of the front and rear slides (507), and a plurality of front and rear springs are fixed between the rear ends of the front and rear slides (506) and the inner side surfaces of the transverse slides of the front and rear slides (507).

5. The coal gangue protection equipment between frames of a high-angle working face according to claim 4 is characterized in that: The second roller shaft (504) is rotatably connected to the lower end of the central guide plate (508), and the upper end of the central guide plate (508) is rotatably connected to the hinge shafts (205) of the two rolling gangue buffer mechanisms (200).

6. The coal gangue protection equipment between frames of a high-angle working face according to claim 1 is characterized in that: Also includes: A flexible protective net (600) is installed on the rear side of the interception frame (100), shielding and cooperating with the rear sides of the two rigid guard frame mechanisms (300), and is used to intercept coal gangue falling from the buffer port between the rigid guard frame mechanism (300) and the diverter seat mechanism (400).

7. A protection method, applicable to the coal gangue protection equipment between frames of a high-angle working face according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: Installing the interception frame (100) at a preset separation area, connecting the interception frame (100) to the ground, and sleeve the lower notch above the raw coal conveyor belt to form a conveying port between the raw coal conveyor belt and the lower notch; When the rolling gangue falls at a relatively stable speed, the rolling gangue contacts the rolling gangue buffer mechanism (200) at the lower end of the front side of the interception frame (100), and the rolling gangue buffer mechanism (200) buffers and intercepts the rolling gangue in contact therewith; When the rolling gangue falls at a high speed and splashes at a high height, the rolling gangue contacts the rigid guard frame mechanism (300), and is buffered and intercepted by the cooperation of the rigid guard frame mechanism (300) and the diverter seat mechanism (400); When the intercepted amount reaches the preset cleaning requirement, the intercepted rolling gangue is cleaned.

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