Supporting device for safe mining of fully-mechanized face fold structure belt

Abstract

The invention relates to the technical field of coal mining, and discloses a supporting device for safe mining of a fully-mechanized face fold structure belt, which comprises a hydraulic support, a supporting groove is formed in the middle of a top plate of the hydraulic support, a supporting mechanism is arranged in the supporting groove, and the supporting mechanism comprises a plurality of elastic arc-shaped plates; the opposite sides of the multiple elastic arc-shaped plates are rotationally connected with multiple supporting plates, a supporting rod is movably inserted into the bottom of each elastic arc-shaped plate, the two ends of each supporting rod are fixedly connected to the inner wall of the supporting groove, each supporting rod is movably sleeved with a supporting spring, and the two ends of each supporting spring are fixedly connected to the inner wall of the corresponding elastic arc-shaped plate; the grouting mechanism is arranged on the hydraulic support supporting base, the protection plate is arranged on the bottom side of the hydraulic support top plate and connected to the supporting plate through the fastening mechanism, broken stone is effectively prevented from entering the hydraulic support, safety hazards to workers are effectively avoided, the risk of mine tunnel operation is reduced, and the mine tunnel working environment is effectively improved; and the safety of workers is obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining, and more specifically, it relates to a support device for safe mining when a fully mechanized coal mining face passes through a fold structure zone. Background Art

[0002] When a fully mechanized coal mining face goes through a fold structure zone by ascending or descending mining, it means that in a fully mechanized coal mining face, when encountering a fold structure in the coal seam, the shearer needs to adjust its operation angle and method to adapt to the undulation of the coal seam, ensuring safe and efficient passage through this geological structure area. A fold is a geological phenomenon in which rock layers in the earth's crust are bent and deformed due to horizontal extrusion, including two basic types: anticline and syncline. In the fold structure zone, the coal seam thickness, dip angle, and roof and floor conditions may change significantly, posing challenges to coal mining work. A support device is a device used in underground projects such as mines and tunnels to support and maintain the stability of roadways or working faces, which is of great significance for ensuring construction safety and improving production efficiency.

[0003] A hydraulic support is a mining equipment and also a support device for a mining working face in a mine. It is mainly a structure used to control the mine pressure in the coal mining face. The mine pressure in the working face acts on the hydraulic support in the form of external load. The existing hydraulic support effectively supports the roof of the coal mining face through its strong supporting force, preventing the roof from collapsing and providing a safe working space for miners. The hydraulic support can be automatically adjusted according to the height and shape changes of the roof to ensure close contact with the roof and provide stable support. The hydraulic support can automatically complete actions such as lifting, lowering, moving, and pushing the conveyor, and is used in conjunction with the shearer and scraper conveyor to achieve comprehensive mechanization of coal mining.

[0004] Although the existing hydraulic supports can be well applied to the support of coal mining faces, there is no support device specifically designed for the fold structure zone. In the actual operation process, due to the special geological characteristics of the fold structure zone, the top of the hydraulic support cannot fit well with the curved surface, resulting in poor supporting effect of the hydraulic support, and further causing difficulties in roof management and low safety in coal mining. Summary of the Invention

[0005] The present invention provides a support device for safe mining when a fully mechanized coal mining face passes through a fold structure zone, which solves the technical problem that the top of the support device in the related technology cannot fit well with the fold structure zone, resulting in low mining safety.

[0006] The present invention provides a support device for safe mining when a fully mechanized coal mining face passes through a fold structure zone, including a hydraulic support. A support groove is provided in the middle of the roof of the hydraulic support, and a support mechanism is arranged in the support groove;

[0007] The support mechanism includes a plurality of elastic arc-shaped plates. A plurality of support plates are rotatably connected to one side of each of the plurality of elastic arc-shaped plates. A support rod is movably inserted into the bottom of each elastic arc-shaped plate. Both ends of the support rod are fixedly connected to the inner wall of the support groove. A support spring is movably sleeved on each support rod. Both ends of the support spring are fixedly connected to the inner wall of the elastic arc-shaped plate;

[0008] A grouting mechanism is provided on the support base of the hydraulic support. A protective plate is provided on the bottom side of the roof of the hydraulic support. The protective plate is connected to the support plate through a fastening mechanism.

[0009] Preferably, control grooves are symmetrically formed on the inner wall of the support groove. Vertical rods are symmetrically and movably inserted into the support rod. Both ends of the vertical rod are fixedly connected to the inner wall of the control groove. A compression spring is movably sleeved on the vertical rod. The top end of the compression spring is connected to the bottom of the support rod. The bottom end of the compression spring is fixedly connected to the inner bottom surface of the control groove. A control key is fixedly installed on the inner wall of the control groove.

[0010] Preferably, a water flow groove is formed on the top of each support plate. A filter screen is fixedly covered on the top of the water flow groove. A water outlet hole is formed on the inner bottom wall of the water flow groove.

[0011] Preferably, a plurality of diversion grooves are formed on the inner bottom wall of the support groove. A plurality of support pipes are fixedly connected to the inner bottom wall of the diversion groove. The bottom of the support pipe is fixedly connected to a sewer pipe.

[0012] Preferably, rectangular through grooves are symmetrically formed on the roof of the hydraulic support. Two groups of grouting mechanisms are symmetrically arranged. The grouting mechanism includes a protective shell. The protective shell is arranged on the side of the support base of the hydraulic support. A motor is fixedly installed on the inner bottom wall of the protective shell. The output end on the side of the motor is movably connected to a driving bevel gear through a rotating shaft. A driven bevel gear is movably meshed with the side wall of the driving bevel gear. A driving gear is fixedly connected to the top of the driven bevel gear. Driven gears are movably meshed with both sides of the driving gear. Drill rods are fixedly inserted into the middle of the driving gear and the driven gears.

[0013] Preferably, the top end of each drill rod movably penetrates through the protective shell and extends upward. A conical block is fixedly connected to the top of the drill rod. A sealing cover is movably hinged to the outside of the conical block. The bottom of the drill rod is movably connected to the inner bottom wall of the protective shell.

[0014] Preferably, an elastic grouting pipe is arranged inside each drill rod. A limiting sleeve is fixedly connected to the inner wall of the drill rod. The top end of the elastic grouting pipe is rotatably connected inside the limiting sleeve. The bottom end of the elastic grouting pipe movably penetrates through the protective shell and extends outward. The bottom end of the elastic grouting pipe is placed in a slurry bucket. The slurry bucket is placed on the support base of the hydraulic support.

[0015] Preferably, a cylinder is fixedly installed on the outer wall of the support base of the hydraulic support. The output end at the top of the cylinder is fixedly connected to the bottom of the protective shell. A protective cover is arranged outside the cylinder.

[0016] Preferably, a push plate is fixedly connected to the drill pipe. A plurality of water outlet grooves are formed on the opposite sides of the rectangular through groove. A sealing plate is hinged to the inner wall of the rectangular through groove, and the inner wall of the sealing plate covers the water outlet grooves. The height position of the water outlet grooves is lower than that of the support pipe.

[0017] Preferably, the fastening mechanism includes a pressure rod and a lifting shell. The top of the pressure rod is fixedly connected to the inner bottom surface of one of the support plates. The bottom end of the pressure rod movably penetrates through the top plate of the hydraulic support and extends downward. The bottom end of the pressure rod is fixedly connected to the top of the lifting shell. Two cross bars are fixedly connected to the inner wall of the lifting shell. A plurality of inclined rods are movably inserted on the cross bars. The side ends of the inclined rods are movably connected to the protection plate. A flexible plate is fixedly connected to the outer wall of the protection plate. The bottom wall of the top plate of the hydraulic support is fixedly connected to a support frame. The top wall of the protection plate is hinged inside the support frame.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present invention adopts the technical means of combining the elastic arc plate with a plurality of support plates. Due to the material characteristics of the elastic arc plate, the plurality of support plates can be flexibly adjusted to better fit the top surface of the folded fully-mechanized mining. It overcomes the technical deficiency in the prior art that the top of the hydraulic support is flat and not well-suited for the top surface of the folded fully-mechanized mining. In terms of safety guarantee, it effectively prevents serious safety accidents such as roof caving and fragmentation, providing a solid guarantee for the personal safety of workers and the stable operation of coal mining facilities during coal mining operations.

[0020] 2. The present invention adopts the technical means of combining the water flow grooves formed on the support plates with the support pipes in the support grooves. During the process of the support plates supporting the top surface of the folded fully-mechanized mining, the accumulated water inside is collected. The accumulated water is collected and processed uniformly through the drain pipe. It overcomes the technical deficiency in the prior art that the accumulated water drips into the mine roadway, causing the hydraulic support to slip easily and resulting in safety accidents. It greatly improves the safety of the device during operation, effectively extends the service life of the hydraulic support, improves the economic benefits of the device, and has important application value.

[0021] 3. By means of the technical means of cooperating the motor, multiple drill pipes, elastic grouting pipes and cylinders, the motor drives the multiple drill pipes to rotate, the cylinders drive the drill pipes to move up and down, the drill pipes drill holes, and the elastic grouting pipes grout, quickly remedying the broken top surface of the folded fully mechanized coal mining, overcoming the technical deficiencies in the prior art that serious safety problems are caused by the collapse of the broken top surface of the folded fully mechanized coal mining, effectively improving the safety during the working process of the overall device, effectively reducing the probability of continuous collapse accidents of the top surface of the folded fully mechanized coal mining, reducing the operation of workers in dangerous environments, and thus significantly improving personal safety. By means of the technical means of cooperating the water outlet groove, the sealing plate and the push plate, the push plate is used to push the sealing plate to move, so that the accumulated water in the support groove flows out and spills on the drill pipes, dust removal and temperature reduction are carried out on the working drill pipes, overcoming the deficiencies in the prior art, thereby effectively utilizing the accumulated water, reducing the dust generated by the drill pipe drilling, effectively protecting the mine roadway environment, and making the device more practical.

[0022] 4. The present invention adopts the technical means of cooperating the pressure rod, the lifting shell, the inclined rod and the protection plate. During the movement of the support plate, the protection plate is pressed, so that the protection plate generates displacement, overcoming the technical deficiency in the prior art that the protection plate is fixedly installed. Furthermore, the support property of the protection plate is stronger, and it can better fit the inner wall of the mine roadway to support the mine roadway. When the top surface of the folded fully mechanized coal mining is broken, it can effectively prevent crushed stones from entering the hydraulic support and causing safety hazards to workers, better protect and support the top surface of the folded fully mechanized coal mining, reduce the risk of mine roadway operation, effectively improve the mine roadway working environment, and significantly improve the safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall structural schematic diagram of the present invention;

[0024] Figure 2 is the overall schematic sectional view of the support roof of the present invention;

[0025] Figure 3 is the overall structural schematic diagram of the inner side view of the support roof of the present invention;

[0026] Figure 4 is the overall structural schematic diagram of the support mechanism in the downward pressure state of the present invention;

[0027] Figure 5 is the overall structural schematic diagram of the support plate and the support roof of the present invention;

[0028] Figure 6 is the overall structural schematic diagram of the grouting mechanism of the present invention;

[0029] Figure 7 is the overall internal structural schematic diagram of the drill pipe of the present invention;

[0030] Figure 8 This is a schematic diagram of the overall structure of the fastening mechanism of the present invention.

[0031] In the figure: 1, hydraulic support; 101, support groove; 102, rectangular through groove; 1011, diversion groove; 1012, support pipe; 1013, downcomer; 2, water outlet groove; 3, sealing plate; 4, support mechanism; 41, elastic arc plate; 42, support plate; 421, water flow groove; 422, filter screen; 423, water outlet hole; 43, support rod; 44, support spring; 45, control groove; 46, vertical rod; 47, compression spring; 48, control key; 5, grouting mechanism; 51, protective shell; 52, motor; 53, driving bevel gear; 54, driven bevel gear; 55, driving gear; 56, driven gear; 57, drill rod; 58, conical block; 59, sealing cover; 510, elastic grouting pipe; 511, cylinder; 512, limiting sleeve; 513, push plate; 6, protective plate; 601, flexible plate; 7, fastening mechanism; 71, pressure rod; 72, lifting shell; 73, cross bar; 74, inclined rod; 75, support frame; 8, slurry bucket. Detailed implementation manners

[0032] Now, the subject matter described herein will be discussed with reference to exemplary embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described in some examples can also be combined in other examples.

[0033] As Figure 1 - Figure 8 shown, this embodiment provides a support device for safe mining in the fully mechanized mining face passing through the fold structure belt, including a hydraulic support 1. A support groove 101 is provided in the middle of the roof of the hydraulic support 1, and a support mechanism 4 is arranged in the support groove 101;

[0034] It should be noted that the support mechanism 4 includes a plurality of elastic arc plates 41. A plurality of support plates 42 are rotatably connected to the opposite sides of the plurality of elastic arc plates 41. A support rod 43 is movably inserted into the bottom of each elastic arc plate 41. Both ends of the support rod 43 are fixedly connected to the inner wall of the support groove 101. A support spring 44 is movably sleeved on each support rod 43. Both ends of the support spring 44 are fixedly connected to the inner wall of the elastic arc plate 41;

[0035] It should be noted that a grouting mechanism 5 is arranged on the support base of the hydraulic support 1, and a protective plate 6 is arranged on the bottom side of the roof of the hydraulic support 1. The protective plate 6 is connected to the support plate 42 through a fastening mechanism 7.

[0036] The working principle and beneficial effects of the above technical solution are as follows:

[0037] Working principle: During the use of the present invention, workers first move multiple hydraulic supports 1 to the working position and conduct a comprehensive and detailed quality inspection on all components such as the hydraulic support 1, the support mechanism 4, and the grouting mechanism 5 to ensure that each component is free of damage, deformation, or other defects, so as to ensure the normal operation of the device and improve the safety during coal mining. According to the height position of the folded fully-mechanized mining roof surface, the position of the hydraulic support 1 is adjusted, and the roof of the hydraulic support 1 is raised until it abuts against the folded fully-mechanized mining roof surface. By providing the support mechanism 4, it is convenient to fit and support the bent folded fully-mechanized mining roof surface. Since the sinking depths of the folded fully-mechanized mining roof surface are different, the pressures generated on the multiple support plates 42 are also different. Depending on the elastic force setting of the elastic arc-shaped plate 41, its bending angle also changes, making the tops of the multiple support plates 42 fit on the folded fully-mechanized mining roof surface, providing support for it, with a closer fit and better support effect.

[0038] Beneficial effects: The present invention adopts the technical means of combining the elastic arc-shaped plate 41 with multiple support plates 42. Through the material characteristics of the elastic arc-shaped plate 41, the multiple support plates 42 can be adjusted flexibly to better fit the folded fully-mechanized mining roof surface, overcoming the technical deficiency in the prior art that the top of the hydraulic support 1 is flat and cannot be well applied to the folded fully-mechanized mining roof surface. In terms of safety guarantee, it effectively prevents the occurrence of serious safety accidents such as roof caving and fragmentation, providing a solid guarantee for the personal safety of workers and the stable operation of coal mining facilities during coal mining operations.

[0039] In a specific embodiment: Control grooves 45 are symmetrically opened on the inner wall of the support groove 101. Vertical rods 46 are symmetrically and movably inserted on the support rod 43. Both ends of the vertical rod 46 are fixedly connected to the inner wall of the control groove 45. A compression spring 47 is movably sleeved on the vertical rod 46. The top end of the compression spring 47 is connected to the bottom of the support rod 43, and the bottom end of the compression spring 47 is fixedly connected to the inner bottom surface of the control groove 45. A control key 48 is fixedly installed on the inner wall of the control groove 45.

[0040] It should be noted that a water flow groove 421 is opened at the top of each support plate 42. A filter screen 422 is fixedly covered on the top of the water flow groove 421, and a water outlet hole 423 is opened on the inner bottom wall of the water flow groove 421.

[0041] It should be noted that multiple diversion grooves 1011 are opened on the inner bottom wall of the support groove 101. Multiple support pipes 1012 are fixedly connected to the inner bottom wall of the diversion groove 1011. The bottom of the support pipe 1012 is fixedly connected to a down pipe 1013.

[0042] The working principle and beneficial effects of the above technical solution are as follows:

[0043] Working principle: During the use of the present invention, the support plate 42 supports the folded fully-mechanized mining roof. When the folded fully-mechanized mining roof collapses or crumbles, the crushed stones exert a downward pressing force on the multiple support plates 42, causing the overall elastic arc-shaped plate 41 to move downward, thereby pushing the support rod 43 downward and pressing the control key 48. The control key 48 is pressed to trigger the grouting mechanism 5 to quickly grout the collapsed position, recasting the top support force of the folded fully-mechanized mining roof, avoiding the occurrence of continuous collapse accidents, and improving the safety of the folded fully-mechanized mining roof during the mining process. Due to the special geological characteristics of the folded fully-mechanized mining roof, water accumulation is likely to occur inside it, and the accumulated water is likely to leak downward along the gaps of the folded fully-mechanized mining roof. By providing a water flow groove 421 on the support plate 42, it is convenient to quickly collect the accumulated water. The water enters the support groove 101 through the water outlet hole 423 and is then discharged downward through the support pipe 1012 provided in the support groove 101. The overall collection is carried out through the provided downpipe 1013 to avoid safety accidents caused by water leakage.

[0044] Beneficial effects: Through the technical means of the cooperation between the water flow groove 421 opened on the support plate 42 and the support pipe 1012 in the support groove 101, during the process of the support plate 42 supporting the folded fully-mechanized mining roof, the accumulated water inside it is collected, and the accumulated water is uniformly collected and processed through the downpipe 1013. It overcomes the technical deficiency in the prior art that the accumulated water drips into the mine roadway, causing the hydraulic support 1 to slip easily and resulting in safety accidents, greatly improving the safety of the device during operation, effectively extending the service life of the hydraulic support 1, improving the economic benefits of the device, and having important application value.

[0045] In a specific embodiment: Rectangular through grooves 102 are symmetrically opened on the top plate of the hydraulic support 1. Two groups of grouting mechanisms 5 are symmetrically arranged. The grouting mechanism 5 includes a protective shell 51. The protective shell 51 is arranged on the side of the support base of the hydraulic support 1. A motor 52 is fixedly installed on the inner bottom wall of the protective shell 51. The side output end of the motor 52 is movably connected to a driving bevel gear 53 through a rotating shaft. The side wall of the driving bevel gear 53 is movably meshed with a driven bevel gear 54. The top of the driven bevel gear 54 is fixedly connected to a driving gear 55. Two driven gears 56 are movably meshed on both sides of the driving gear 55. Drill rods 57 are fixedly inserted in the middle of the driving gear 55 and the driven gears 56.

[0046] It should be noted that the top end of each drill rod 57 movably penetrates through the protective shell 51 and extends upward. A conical block 58 is fixedly connected to the top of the drill rod 57. A sealing cover 59 is movably hinged outside the conical block 58. The bottom of the drill rod 57 is movably connected to the inner bottom wall of the protective shell 51.

[0047] It should be noted that an elastic grouting pipe 510 is provided inside each drill pipe 57. A limiting sleeve 512 is fixedly connected to the inner wall of the drill pipe 57. The top end of the elastic grouting pipe 510 is rotatably connected inside the limiting sleeve 512. The bottom end of the elastic grouting pipe 510 extends outwards through the protective shell 51 movably. The bottom end of the elastic grouting pipe 510 is placed in the slurry bucket 8, and the bottom of the slurry bucket 8 is placed on the support base of the hydraulic support 1.

[0048] In addition, a cylinder 511 is fixedly installed on the outer wall of the support base of the hydraulic support 1. The top output end of the cylinder 511 is fixedly connected to the bottom of the protective shell 51, and a protective cover is arranged outside the cylinder 511.

[0049] Specifically, a push plate 513 is fixedly connected to the drill pipe 57. A plurality of water outlet grooves 2 are formed on opposite sides of the rectangular through groove 102. A sealing plate 3 is hinged to the inner wall of the rectangular through groove 102, and the inner wall of the sealing plate 3 covers the water outlet grooves 2. The height position of the water outlet grooves 2 is lower than that of the support pipe 1012.

[0050] The working principle and beneficial effects of the above technical solution are as follows:

[0051] Working principle: During the use of the present invention, when the support rod 43 presses down to trigger the use of the grouting mechanism 5, the motor 52 drives the driving bevel gear 53 to rotate, so that the driven bevel gear 54 drives the driving gear 55 to rotate, and then drives a plurality of driven gears 56 to rotate. At this time, a plurality of drill pipes 57 rotate synchronously. The cylinder 511 pushes the protective shell 51 upwards, thereby driving a plurality of drill pipes 57 to move upwards. Drilling operations are carried out on the top surface of the folded fully-mechanized mining through the rectangular through groove 102. After the drilling is completed, during the reset process of the output end of the cylinder 511, grouting is carried out into the drilled hole through the elastic grouting pipe 510. It should be noted that the bottom end of the elastic grouting pipe 510 is arranged in the slurry bucket 8, and a grouting machine is arranged in the slurry bucket 8 to convey the prepared slurry into the elastic grouting pipe 510. In addition, a conical block 58 is arranged at the top of the drill pipe 57, which can not only drill holes faster. When the drill pipe 57 moves downwards and resets after the drilling operation, a triangular cross-section gap will be generated between the conical block 58 and the cylindrical drilled hole. The slurry overflowing from the elastic grouting pipe 510 will push open the sealing cover 59 hinged on the conical block 58, and then fill the drilled hole, grout the broken top surface of the folded fully-mechanized mining, so that it regains the supporting force and avoids the occurrence of continuous collapse accidents. In addition, during the use of the present invention, when the drill pipe 57 moves upwards, after the push plate 513 enters the rectangular through groove 102, the push plate 513 pushes the sealing plate 3 to move, so that a gap appears between the water outlet groove 2 and the sealing plate 3, and the accumulated water in the support groove 101 will flow out and sprinkle on the drill pipe 57 to reduce dust and cool the working drill pipe 57, which is fast, convenient and highly practical.

[0052] Beneficial effects: By means of the technical means of the cooperation of the motor 52, multiple drill pipes 57, the elastic grouting pipe 510 and the cylinder 511, the motor 52 drives the rotation of the multiple drill pipes 57, the cylinder 511 drives the lifting movement of the drill pipes 57, the drill pipes 57 drill holes, and the elastic grouting pipe 510 grouts, quickly remedying the broken top surface of the folded fully-mechanized mining, overcoming the technical deficiencies in the prior art that serious safety problems are caused by the collapse of the broken top surface of the folded fully-mechanized mining, effectively improving the safety during the working process of the overall device, effectively reducing the probability of continuous collapse accidents of the top surface of the folded fully-mechanized mining, reducing the operation of workers in dangerous environments, thus significantly enhancing personal safety. By means of the technical means of the cooperation of the water outlet groove 2, the sealing plate 3 and the push plate 513, the push plate 513 pushes the sealing plate 3 to move, enabling the accumulated water in the support groove 101 to flow out and sprinkle on the drill pipes 57, dust-removing and cooling the working drill pipes 57, overcoming the deficiencies in the prior art, thus effectively utilizing the water, reducing the dust generated by the drilling of the drill pipes 57, effectively protecting the mine roadway environment, and making the device more practical.

[0053] In a specific embodiment: The fastening mechanism 7 includes a pressure rod 71 and a lifting shell 72. The top of the pressure rod 71 is fixedly connected to the inner bottom surface of one support plate 42. The bottom end of the pressure rod 71 movably passes through the roof plate of the hydraulic support 1 and extends downward. The bottom end of the pressure rod 71 is fixedly connected to the top of the lifting shell 72. Two cross bars 73 are fixedly connected to the inner wall of the lifting shell 72. A plurality of inclined rods 74 are movably inserted on the cross bars 73. The side ends of the inclined rods 74 are movably connected to the protection plate 6. A flexible plate 601 is fixedly connected to the outer wall of the protection plate 6. The bottom wall of the roof plate of the hydraulic support 1 is fixedly connected to a support frame 75. The top wall of the protection plate 6 is hinged in the support frame 75.

[0054] The working principle and beneficial effects of the above technical solution are as follows:

[0055] Working principle: During the use of the present invention, the downward pressure of the support plate 42 pushes the pressure rod 71 to move downward. The pressure rod 71 pushes the lifting shell 72 to move downward. The movement of the lifting shell 72 drives the movement of the multiple cross bars 73 inside, so that the inclination angles of the multiple inclined rods 74 inserted on the cross bars 73 are changed. The inclined rods 74 push the protection plate 6 closer to the inner wall of the mine roadway, and the support of the protection plate 6 is more stable.

[0056] Beneficial effects: The present invention adopts the technical means of cooperating the pressure rod 71, the lifting shell 72, the inclined rod 74 and the protection plate 6. During the movement of the support plate 42, the protection plate 6 is pressed, causing the protection plate 6 to displace, overcoming the technical deficiency of the fixed installation of the protection plate 6 in the prior art. Furthermore, the supportability of the protection plate 6 is stronger, and it can better fit the inner wall of the mine roadway to support the mine roadway. When the top surface of the folded fully mechanized mining is broken, it can effectively prevent crushed stones from entering the hydraulic support 1, pose no safety hazard to workers, better protect and support the top surface of the folded fully mechanized mining, reduce the risk of mine roadway operation, effectively improve the mine roadway working environment, and significantly improve the safety of workers.

[0057] The embodiments of the present invention have been described above, but these embodiments are not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A support device for safely mining through a fold structure zone in a fully mechanized mining face, including a hydraulic support (1), characterized in that: A support groove (101) is provided in the middle of the top plate of the hydraulic support (1), and a support mechanism (4) is arranged in the support groove (101); The support mechanism (4) includes a plurality of elastic arc-shaped plates (41). A plurality of support plates (42) are rotatably connected to the opposite sides of the plurality of elastic arc-shaped plates (41). A support rod (43) is movably inserted into the bottom of each elastic arc-shaped plate (41). Both ends of the support rod (43) are fixedly connected to the inner wall of the support groove (101). A support spring (44) is movably sleeved on each support rod (43). Both ends of the support spring (44) are fixedly connected to the inner wall of the elastic arc-shaped plate (41); A grouting mechanism (5) is arranged on the support base of the hydraulic support (1). A protective plate (6) is arranged on the bottom side of the top plate of the hydraulic support (1). The protective plate (6) is connected to the support plate (42) through a fastening mechanism (7).

2. The support device for safe mining in the fully mechanized mining face passing through the fold structure belt according to claim 1, wherein, Control grooves (45) are symmetrically opened on the inner wall of the support groove (101). Vertical rods (46) are symmetrically and movably inserted into the support rod (43). Both ends of the vertical rod (46) are fixedly connected to the inner wall of the control groove (45). A compression spring (47) is movably sleeved on the vertical rod (46). The top end of the compression spring (47) is connected to the bottom of the support rod (43). The bottom end of the compression spring (47) is fixedly connected to the inner bottom surface of the control groove (45). A control key (48) is fixedly installed on the inner wall of the control groove (45).

3. The support device for safe mining when passing through a fold structure zone in a fully mechanized mining face according to claim 1, characterized in that, A water flow groove (421) is opened on the top of each support plate (42). A filter screen (422) is fixedly covered on the top of the water flow groove (421). A water outlet hole (423) is opened on the inner bottom wall of the water flow groove (421).

4. A support device for safely mining through a fold structure zone in a fully mechanized mining face according to claim 1, characterized in that, A plurality of diversion grooves (1011) are opened on the inner bottom wall of the support groove (101). A plurality of support pipes (1012) are fixedly connected to the inner bottom wall of the diversion grooves (1011). The bottom of the support pipe (1012) is fixedly connected to a down pipe (1013).

5. The support device for safe mining in the fully mechanized mining face passing through the fold structure zone according to claim 1, characterized in that, Rectangular through grooves (102) are symmetrically opened on the top plate of the hydraulic support (1). Two groups of grouting mechanisms (5) are symmetrically arranged. The grouting mechanism (5) includes a protective shell (51). The protective shell (51) is arranged on the side of the support base of the hydraulic support (1). A motor (52) is fixedly installed on the inner bottom wall of the protective shell (51). The side output end of the motor (52) is movably connected to a driving bevel gear (53) through a rotating shaft. The side wall of the driving bevel gear (53) is movably meshed with a driven bevel gear (54). The top of the driven bevel gear (54) is fixedly connected to a driving gear (55). A driven gear (56) is movably meshed on both sides of the driving gear (55). A drill rod (57) is fixedly inserted into the middle of the driving gear (55) and the driven gear (56).

6. The supporting device for safe mining when passing through a fold structure zone in a fully mechanized mining face according to claim 5, characterized in that, The top end of each drill rod (57) movably penetrates through the protective shell (51) and extends upward. A conical block (58) is fixedly connected to the top of the drill rod (57). A sealing cover (59) is movably hinged to the outside of the conical block (58). The bottom of the drill rod (57) is movably connected to the inner bottom wall of the protective shell (51).

7. The support device for safe mining in the fully-mechanized mining face passing through the fold structure belt according to claim 6, wherein, Inside each of the drill pipes (57), an elastic grouting pipe (510) is provided. The inner wall of the drill pipe (57) is fixedly connected with a limiting sleeve (512). The top end of the elastic grouting pipe (510) is rotatably connected inside the limiting sleeve (512). The bottom end of the elastic grouting pipe (510) extends outwards through the protective shell (51) movably. The bottom end of the elastic grouting pipe (510) is placed in the slurry bucket (8), and the bottom of the slurry bucket (8) is placed on the support base of the hydraulic support (1).

8. A support device for safely mining through a fold structure zone in a fully mechanized mining face, characterized in that, A cylinder (511) is fixedly installed on the outer wall of the support base of the hydraulic support (1). The top output end of the cylinder (511) is fixedly connected to the bottom of the protective shell (51). A protective cover is arranged outside the cylinder (511).

9. The support device for safe mining when passing through a fold structure zone in a fully mechanized mining face according to claim 8, characterized in that, A push plate (513) is fixedly connected to the drill pipe (57). A plurality of water outlet grooves (2) are formed on opposite sides of the rectangular through groove (102). A sealing plate (3) is hinged to the inner wall of the rectangular through groove (102), and the inner wall of the sealing plate (3) covers the water outlet grooves (2). The height position of the water outlet grooves (2) is lower than that of the support pipe (1012).

10. The support device for safe mining in the fully mechanized mining face passing through the fold structure belt according to claim 1, characterized in that, The fastening mechanism (7) includes a pressure rod (71) and a lifting shell (72). The top of the pressure rod (71) is fixedly connected to the inner bottom surface of one of the support plates (42). The bottom end of the pressure rod (71) extends downwards through the top plate of the hydraulic support (1) movably. The bottom end of the pressure rod (71) is fixedly connected to the top of the lifting shell (72). Two cross bars (73) are fixedly connected to the inner wall of the lifting shell (72). A plurality of inclined rods (74) are movably inserted on the cross bars (73). The side ends of the inclined rods (74) are movably connected to the protective plate (6). A flexible plate (601) is fixedly connected to the outer wall of the protective plate (6). The bottom wall of the top plate of the hydraulic support (1) is fixedly connected to a support frame (75), and the top wall of the protective plate (6) is hinged inside the support frame (75).

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