Full-section non-reciprocating supporting structure of return air roadway and supporting method of full-section non-reciprocating supporting structure

Abstract

The invention discloses an air return roadway full-section non-reciprocating supporting structure and a supporting method thereof. The full-section non-reciprocating supporting structure of the return air roadway comprises a fixing support, a supporting support and a mechanical arm support, the fixing support is arranged at the starting end of the roadway, and a winding piece and a mechanical arm are arranged on the fixing support; the supporting support comprises a top beam, a stand column and a base, and a telescopic column is arranged at one end of the base and can stretch out and draw back in the advancing direction of the base in a reciprocating mode. A sliding rail is detachably connected to the top beam, a sliding piece is slidably connected to the sliding rail, and one end of the sliding piece is connected with a traction rope of the winding piece. The base is detachably connected with the manipulator; and the manipulator bracket is positioned at the opposite tail end and is detachably connected with the supporting bracket. The sliding rail and the sliding part are arranged on the supporting bracket, the sliding part increases the height of the supporting bracket, and the fixed bracket pulls the sliding part to drive the supporting bracket to move, so that the problem that the advancing bracket cannot move forwards due to the fact that gangue surges from a roadway bottom plate and the like, and normal production is influenced is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine support, and particularly relates to a full-section non-reciprocating support structure for a return air tunnel and a support method thereof. Background Art

[0002] The underground drift tunnel is an important material transportation and underground ventilation channel for modern fully mechanized mining working faces. Due to the complex underground geological conditions, the stress distribution of the rock formation is difficult to accurately calculate, resulting in deformation of the tunnel roof, inward contraction and extrusion of the two sides of the tunnel, and bottom bulging, which directly affects the safety of personnel and equipment. Therefore, the support of the drift tunnel is very important. In order to solve the above-mentioned tunnel support problems, advanced hydraulic supports are currently used for mechanized support.

[0003] At present, the support adopts a Chinese invention patent with a publication number of CN108506035A, which discloses a large working resistance leading hydraulic support for the return airway, and specifically discloses two support units arranged side by side at intervals, the two support units have the same structure, and are composed of a front support and a rear support arranged in the longitudinal direction; the front support and the rear support are hinged by a push jack; the front support and the rear support have the same structure, and are composed of a top beam, a shield beam, a four-bar mechanism, a base, a telescopic column, an inner bottom adjustment jack, and an outer bottom adjustment jack; a box-type pedal channel is arranged in the longitudinal direction on the inner side of the base, the inner bottom adjustment jack is arranged in the transverse direction inside the box-type pedal channel, and the outer bottom adjustment jack is arranged in the transverse direction inside the base; an upper rock baffle plate is hinged downward on the outer side of the top beam, and a lower rock baffle plate is hinged upward on the outer side of the base, and the upper and lower rock baffle plates overlap each other. The advantages of the present invention are that it realizes large working resistance and support strength, reserves a safe space for pedestrians and transporting materials, and ensures the normal production advancement of the comprehensive mining working face. However, the gangue rising from the tunnel floor made it impossible for the advance support to move forward, which greatly affected the advancement of normal production, avoided the occurrence of bottom drum and ensured space for pedestrians and ventilation. Summary of the invention

[0004] Based on this, it is necessary to provide a full-section non-reciprocating support structure and a support method for the return air channel to address the problem that the support base is easily sunk into the mud, which hinders the movement of the support base and makes it difficult to withdraw the support.

[0005] To achieve the above object, the present invention adopts the following scheme:

[0006] A full-section non-reciprocating support structure for a return air lane, comprising: a fixed support, a supporting support and a manipulator support, the fixed support is arranged at the starting end of the lane, and a winding member and a manipulator are arranged on the fixed support; a plurality of supporting supports are arranged, and the supporting support comprises a top beam, a column and a base, the two ends of the column are respectively connected to the top beam and the base, a telescopic column is arranged at one end of the base, and the telescopic column can reciprocate and telescope along the direction of travel of the base; a slide rail is detachably connected to the top beam, the slide rail is parallel to the direction of the lane, and a sliding member is slidably connected to the slide rail, one end of the sliding member is connected to the traction rope of the winding member for lifting and transporting the supporting support; the base is detachably connected to the manipulator for adjusting the direction of the base; the manipulator support is arranged opposite to the fixed support and is located at the opposite end, and the manipulator support is detachably connected to the supporting support for moving the supporting support and turning.

[0007] Preferably, two adjacent slide rails are detachably connected using a connecting piece.

[0008] Preferably, the connecting member includes a clamping plate and a bolt, the end of the slide rail is provided with a through hole, both ends of the clamping plate are provided with round holes, and the bolt passes through the round hole and the through hole to fix the clamping plate and the slide rail.

[0009] Preferably, the sliding member includes a base and a chain, the base is slidably connected to the slide rail, and the chain is arranged on the base and detachably connected to the base.

[0010] Preferably, a chain disc is provided at one end of the chain, and the chain disc can retract or extend the chain to drive the chain to rise or fall.

[0011] Preferably, a roller is provided on the base, and the roller is slidably connected to the slide rail and rotatably connected to the base.

[0012] Preferably, a hydraulic column is provided on the base, the hydraulic column is vertically connected to the base and is rotatably connected to the top beam; one end of the column is arranged at an end of the base away from the hydraulic column, and the other end is connected to an end of the top beam close to the hydraulic column.

[0013] Preferably, a baffle is hinged at one end of the top beam away from the telescopic column, a hydraulic jack is hinged at the lower end surface of the baffle, and the other end of the hydraulic jack is connected to the top beam to drive the baffle to rotate along the hinge.

[0014] A support method for a return air lane with a full-section and no reciprocating support structure, wherein a fixed support is arranged at the beginning of the lane, a manipulator support is arranged at the end, and five support supports are arranged in the middle, the first support support is close to the fixed support, and the nth support support is close to the manipulator support; the method comprises the following steps:

[0015] Step S10. The first adjustment of the angle of the nth support bracket: lowering the top beam of the nth support bracket, and adjusting the nth support bracket from a direction perpendicular to the direction of the laneway to a direction parallel to the direction of the laneway through the manipulator bracket;

[0016] Step S20. The nth support bracket moves:

[0017] Step S21. The manipulator support is detachably connected to the end of the base of the nth support support away from the telescopic column, the manipulator support is lowered, and the telescopic column of the nth support support is extended out of the base;

[0018] Step 22. The telescopic column of the n-2 support bracket extends out of the base and is detachably connected to the telescopic column of the n support bracket. With the n-2 support bracket as a fulcrum, the n support bracket contracts, driving the base of the n support bracket and the manipulator bracket to move toward the fixed bracket;

[0019] Step S23. Slide the sliding member to the end of the slide rail of the n-1th support bracket. At the same time, the n-1th support bracket stops when it moves to the bottom of the top beam of the n-1th support bracket, disconnect the n-1th support bracket and the manipulator bracket, and fix the sliding member to the n-1th support bracket;

[0020] Step S30. Transporting the nth support bracket:

[0021] Step S31. The manipulator support is lifted to contact the top of the tunnel, and the sliding member lifts the nth support support to make it leave the ground;

[0022] Step S32. Open the winding member of the fixed support, drive the sliding member and the nth support support fixed on the sliding member to move along the slide rail to the first support support, and lower the nth support support, disconnect the nth support support and the sliding member;

[0023] Step S33. Extend the telescopic column of the nth supporting bracket and detachably connect it to the fixed bracket, and use the fixed bracket as a fulcrum to shrink the telescopic column of the nth supporting bracket, so as to drive the nth supporting bracket to move toward the fixed bracket;

[0024] Step S40. The angle of the nth support bracket is adjusted for the second time: the nth support bracket is adjusted from a direction parallel to the direction of the laneway to a direction perpendicular to the direction of the laneway by fixing the bracket, and the top beam of the nth support bracket is lifted for support;

[0025] Step S50: Renumber the support brackets and repeat steps S10 to S40.

[0026] The technical solution adopted in this application can achieve the following beneficial effects:

[0027] 1. By setting slide rails and sliding parts on the support bracket, using the sliding parts to raise the height of the support bracket, and then using the fixed bracket to pull the sliding parts to drive the movement of the support bracket, the movement of the support bracket is completed; solve the problem that the advance bracket cannot be moved forward due to the gangue surging from the bottom plate of the tunnel, thus greatly affecting the advancement of normal production.

[0028] 2. By using the manipulator support in conjunction with the support support, the problem of narrow lanes and the inability of equipment to enter, which leads to difficulty in turning the support support, is solved.

[0029] 3. By transporting the support brackets close to the working area to the end far away from the working area for support in sequence, the problem of difficult operation and low safety factor of the support brackets being required to move back and forth can be solved.

[0030] 4. Through the coordinated support of fixed brackets, manipulator brackets and supporting brackets, the occurrence of bottom drum is avoided and the space for pedestrians and ventilation is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the left side of the support bracket of the return air channel with a full section and no reciprocating support structure disclosed in the embodiment of the present application.

[0032] Figure 2 This is a schematic diagram of the right side of the support bracket of the return airway without a reciprocating support structure in the full section disclosed in the embodiment of the present application.

[0033] Figure 3 It is an overall schematic diagram of the return air tunnel full-section non-reciprocating support structure disclosed in the embodiment of the present application.

[0034] Figure 4 This is a schematic diagram of the sliding parts of the return air duct without a reciprocating support structure in the full section disclosed in the embodiment of the present application.

[0035] Figure 5 It is a schematic diagram of a manipulator support for the full-section return airway without a reciprocating support structure disclosed in an embodiment of the present application.

[0036] Figure 6 It is a schematic diagram of a fixed bracket of a return air duct without a reciprocating support structure in full section disclosed in an embodiment of the present application.

[0037] Figure 7 It is a side view of the full-section support bracket of the return air duct without a reciprocating support structure disclosed in the embodiment of the present application.

[0038] Figure 8 It is a schematic diagram of step S10 of the method for supporting the entire cross-section of a return air tunnel without a reciprocating support structure disclosed in an embodiment of the present application.

[0039] Fig. 9 It is a schematic diagram of step S20 of the method for supporting the entire cross-section of a return air tunnel without a reciprocating support structure disclosed in an embodiment of the present application.

[0040] Fig.10 It is a schematic diagram of step S30 of the method for supporting the entire cross-section of a return air tunnel without a reciprocating support structure disclosed in an embodiment of the present application.

[0041] Fig.11 It is a schematic diagram of step S40 of the method for supporting the entire cross-section of a return air tunnel without a reciprocating support structure disclosed in an embodiment of the present application.

[0042] Fig.12 It is a schematic diagram of step S50 of the method for supporting the entire cross-section of a return air tunnel without a reciprocating support structure disclosed in an embodiment of the present application.

[0043] Among them: a fixed bracket 100, a winding piece 110, a manipulator 120, a supporting bracket 200, a top beam 210, a slide rail 211, a baffle 212, a hydraulic column 220, a column 230, a base 240, a telescopic column 241, a sliding piece 250, a base 251, a chain 252, and a manipulator bracket 300. DETAILED DESCRIPTION

[0044] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0045] It should be noted that when a device is considered to be "connected" to another device, it may be directly connected to the other device or there may be an intermediate device at the same time. The terms "inside", "top", "upper", "lower", "upper", "lower" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0047] See also Figures 1 to 12The present application provides a full-section non-reciprocating support structure for a return air tunnel, comprising: a fixed support 100, a supporting support 200 and a manipulator support 300, wherein the fixed support 100 is arranged at the beginning of the tunnel, and a winding member 110 and a manipulator 120 are arranged on the fixed support 100; a plurality of supporting supports 200 are arranged, and the supporting support 200 comprises a top beam 210, a column 230 and a base 240, and the two ends of the column 230 are respectively connected to the top beam 210 and the base 240, and one end of the base 240 is provided with a telescopic column 241, and the telescopic column 241 can reciprocate along the direction of movement of the base 240. retraction; the top beam 210 is detachably connected with a slide rail 211, the slide rail 211 is parallel to the direction of the laneway, and the slide rail 211 is slidably connected with a slide member 250, one end of the slide member 250 is connected to the traction rope of the winding member 110, and is used to lift and transport the support bracket 200; the base 240 is detachably connected to the manipulator 120, and is used to adjust the direction of the base 240; the manipulator bracket 300 is arranged opposite to the fixed bracket 100, and is located at the opposite end, the manipulator bracket 300 is detachably connected to the support bracket 200, and is used to move the support bracket 200 and turn it.

[0048] The starting end of the return air alley is the end close to the exit, and the end of the return air alley is the working area; a number of support brackets 200 are arranged in the return air alley for supporting the return air alley, and a manipulator bracket 300 is arranged at the end of the return air alley (located on the side of the last support bracket 200 at the end of the return air alley away from the exit), and the moving direction of the manipulator bracket 300 is parallel to the direction of the alley; a fixed bracket 100 is arranged on one side of the first support bracket 200 in the return air alley, and the moving direction of the fixed bracket 100 is parallel to the direction of the alley, and its center line is on the same straight line with the center line of the manipulator bracket 300, and the bottom of the fixed bracket 100 and the manipulator bracket 300 are both located on one side of the end of the base 240 of the support bracket 200.

[0049] The fixed bracket 100 includes a top, a bottom and a supporting portion. The top and the bottom of the fixed bracket 100 are both connected to the supporting portion. The top of the fixed bracket 100 contacts the top plate of the tunnel, and the bottom of the fixed bracket 100 contacts the bottom plate of the tunnel. The supporting portion of the fixed bracket 100 can drive the top of the fixed bracket 100 to extend and retract up and down, and the bottom of the fixed bracket 100 adopts but is not limited to crawler-type, flat-plate-type and other devices, preferably a crawler-type, wheel jack-type self-moving bracket, a winding member 110 is arranged on the bottom of the fixed bracket 100, and the winding member 110 adopts but is not limited to winches, motor rollers and other equipment, and a steel wire rope is wound on the winding member 110 (not shown in the figure, but the steel wire rope needs to be connected when used), and the steel wire rope is connected to the sliding member 250; a manipulator 120 is arranged at the bottom of the fixed bracket 100, and the manipulator 120 (adopting but not limited to the manipulator 120 device at the end of the TYH type hydraulic bracket adjustment device) can be extended and rotated.

[0050] The manipulator support 300 adopts but is not limited to a TYH type hydraulic support transfer device, and the top of the manipulator support 300 contacts the top of the tunnel, and the bottom of the manipulator support 300 contacts the bottom of the tunnel. The support portion of the manipulator support 300 can drive the top of the manipulator support 300 to move up and down. The bottom of the manipulator support 300 adopts but is not limited to crawler-type, flat-plate-type and other structures, preferably a crawler-type, wheel jack-type self-moving support, and the top of the manipulator support 300 adopts but is not limited to a top beam 210 of a hydraulic support (smaller width and length, playing a role of partial support), a top beam 210 of an advance support support 200 (the width is the same as the width of the tunnel top, the length is unlimited, playing a role of overall support) and other structures; preferably, it is the top beam 210 of the advance support support 200. After the support support 200 close to the manipulator support 300 is withdrawn, the top of the manipulator support 300 moves to the top beam 210 of the support support 200 for support, thereby increasing the safety of its support.

[0051] The support bracket 200 adopts but is not limited to the hydraulic support bracket 200, the advanced support bracket 200 and other support brackets. When the support bracket 200 is supporting the tunnel, the travel direction of the support bracket 200 is perpendicular to the direction of the tunnel, and the support bracket 200 is arranged side by side in a straight line during support; the length of the top beam 210 of the support bracket 200 is the same as the width of the top of the tunnel, and a slide rail 211 is arranged on the top beam 210 of the support bracket 200. The upper end surfaces of both ends of the slide rail 211 are provided with sleeves, and the sleeves are sleeved in the top beam 210 (cylinders are provided on both sides of the center line of the top beam 210 in the length direction, and the sleeves are sleeved with the cylinders, and are fixed by bolts and other means), and the distance between the sleeve and one side of the base 240 is greater than half the width of the top beam 210 of the support bracket 200. Taking A and B as an example of two adjacent supporting brackets 200, one end of the slide rail 211 is socketed with A, and the other end is socketed with B; they are connected to form a complete slide rail 211 of uniform height by mutual socketing; the sliding member 250 is arranged on the slide rail 211, and the sliding member 250 adopts but is not limited to the method of connecting the trolley to the fall chain, the trolley to the telescopic cylinder, etc.; the column 230 of the supporting bracket 200 can adopt a hydraulic column 230, and a telescopic column 241 is arranged in the base 240 of the supporting bracket 200, and the telescopic column 241 can be telescoped along the travel direction of the supporting bracket 200; and connecting holes are arranged around the base 240 of the supporting bracket 200, and a connecting ear is arranged at the other end away from the telescopic column 241, and the connecting hole and the connecting ear are used for detachable connection with the manipulator bracket 300.

[0052] Furthermore, in the initial state (support state), the top of the fixed support 100 is in contact with the top of the tunnel, the winding member 110 is in the winding state, the sliding member 250 is close to one side of the fixed support 100, the top of the manipulator support 300 is in contact with the top of the tunnel, and the top beams 210 of all support supports 200 (taking n support supports 200 as an example, and they are named as the first support support 200, the second support support 200...the nth support support 200 along the direction of the tunnel, this naming is only for the convenience of description and has nothing to do with the actual number and name of the support supports 200) are in contact with the top of the tunnel.

[0053] Lower the top beam 210 of the nth supporting bracket 200 to separate it from the top of the tunnel, connect the manipulator bracket 300 with the connecting hole at the front end of the base 240 of the nth supporting bracket 200, drive the nth supporting bracket 200 to move and rotate through rotation and extension, disconnect the manipulator bracket 300 from the nth supporting bracket 200, and then connect the manipulator bracket 300 with the connecting hole at the rear end of the base 240 of the nth supporting bracket 200, continue to rotate and extend, so that the travel direction of the nth supporting bracket 200 is parallel to the direction of the tunnel; extend the telescopic column 241 of the nth supporting bracket 200, and connect the manipulator bracket 300 with the connecting ear of the nth supporting bracket 200.

[0054] Extend the telescopic column 241 of the n-2 support bracket 200 and detachably connect it with the telescopic column 241 of the n-2 support bracket 200; lower the top of the manipulator bracket 300, and then use the n-2 support bracket 200 as a fulcrum to retract the telescopic column 241 of the n-2 support bracket 200, so that it drives the manipulator bracket 300 to move closer to the telescopic column 241 of the n-2 support bracket 200; after the telescopic column 241 of the n-2 support bracket 200 is retracted to the base 240 of the n-1 support bracket 200 (at this time, the n-1 support bracket 200 is located below the n-1 support bracket 200), disconnect it from the telescopic column 241 of the n-2 support bracket 200, and disconnect the n-2 support bracket 200 from the manipulator bracket 300; raise the top of the manipulator bracket 300 to make it contact with the top of the tunnel.

[0055] The sliding member 250 is manually slid from one side of the fixed bracket 100 to one side of the n-1th supporting bracket 200, and is detachably connected to the base 240 of the nth supporting bracket 200 (connected to the connecting holes around the base 240 by means of hooks, snap rings, etc.), and the nth supporting bracket 200 is pulled up to separate the base 240 from the bottom surface of the tunnel; the winding member 110 on the fixed bracket 100 is opened to pull the sliding member 250 and drive the nth supporting bracket 200 to move along the slide rail 211 to the bottom of the first supporting bracket 200; the nth supporting bracket 200 is lowered to fall back to the ground of the tunnel, and the connection between the sliding member 250 and the nth supporting bracket 200 is disconnected.

[0056] Extend the telescopic column 241 of the nth supporting bracket 200 and make it detachably connected to the bottom of the fixed bracket 100, and with the fixed bracket 100 as the fulcrum, retract the telescopic column 241 of the nth supporting bracket 200 until it retracts back into the nth supporting bracket 200 and stops, and disconnect the nth supporting bracket 200 from the fixed bracket 100; connect the manipulator 120 of the fixed bracket 100 to the connecting hole at the front end of the nth supporting bracket 200, and rotate and retract to rotate the angle of the nth supporting bracket 200; disconnect, and connect the manipulator 120 to the connecting hole at the rear end of the nth supporting bracket 200, rotate and retract again, stop when the nth supporting bracket 200 is side by side with the first supporting bracket 200, disconnect the nth supporting bracket 200 from the manipulator 120, and raise the top beam 210 of the nth supporting bracket 200 to make it contact with the top of the tunnel to complete the support.

[0057] The present application adopts a technical solution of a full-section non-reciprocating support structure for the return airway to achieve the following beneficial effects:

[0058] 1. By arranging a slide rail 211 and a sliding member 250 on the supporting bracket 200, the sliding member 250 is used to raise the height of the supporting bracket 200, and then the fixed bracket 100 pulls the sliding member 250 to drive the movement of the supporting bracket 200, so as to complete the movement of the supporting bracket 200; the problem that the advanced bracket cannot be moved forward due to the gangue rising from the bottom plate of the tunnel is solved, thereby greatly affecting the advancement of normal production.

[0059] 2. By using the manipulator support 300 in cooperation with the support support 200, the problem of difficulty in turning the support support 200 due to the narrow lane and the inability of equipment to enter is solved.

[0060] 3. By transporting the support bracket 200 close to the working area to the end far away from the working area for support in sequence, the problem of difficult operation and low safety factor of the support bracket 200 being required to perform reciprocating support is solved.

[0061] 4. Through the coordinated support of the fixed bracket 100, the manipulator bracket 300 and the supporting bracket 200, the occurrence of bottom drum is avoided and the space for pedestrians and ventilation is guaranteed.

[0062] 5. By setting the bottom of the fixed bracket 100 and the manipulator bracket 300 as a crawler type or other self-movable bracket, the operation is more convenient.

[0063] In the above scheme, in order to improve the stability of the slide rail 211 during transportation, two adjacent slide rails 211 are detachably connected using a connector. The connector includes a clamping plate and a bolt. The end of the slide rail 211 is provided with a through hole, and the two ends of the clamping plate are provided with round holes. The bolt passes through the round hole and the through hole to fix the clamping plate and the slide rail 211.

[0064] The connecting parts adopt but are not limited to splint bolts, fastening claws, etc., preferably splints and bolts. Circular holes are respectively set at both ends of the slide rail 211, and two splints are set at the connection of the two slide rails 211. One end of the bolt passes through the two splints and the slide rail 211 and is fixed with a nut. When the support bracket 200 needs to be moved, it can be removed; the operation is simpler and more convenient, and the stability of the slide rail 211 in transportation is improved.

[0065] Based on the above solution, the sliding member 250 includes a base 251 and a chain 252. The base 251 is slidably connected to the slide rail 211. The chain 252 is arranged on the base 251 and is detachably connected to the base 240. A chain disc is arranged at one end of the chain 252, and the chain disc can retract or retract the chain 252 to drive the chain 252 to rise or fall. A roller is arranged on the base 251, and the roller is slidably connected to the slide rail 211 and is rotatably connected to the base 251.

[0066] Specifically, the rollers on the base 251 are connected by bearings, and four rollers are arranged, which are symmetrical in pairs and clamped on the slide rail 211, so as to solve the problem of the base 251 being detached from the slide rail 211. The chain 252 cooperates with the lock plate and is connected to the base 251 in a manner similar to a fall chain or a hand winch; a hook is provided at the other end of the chain 252 and is detachably connected to the connecting hole on the base 240 of the support bracket 200; the base 251 is manually pulled to the specified position, and then the chain 252 is pulled to drive the support bracket to rise. The operation is simple and convenient, which reduces the entry of mechanical equipment and solves the problem of small space machinery being difficult to move.

[0067] In the above scheme, in order to achieve a simpler and more convenient support, a hydraulic column 220 is arranged on the base 240, the hydraulic column 220 is vertically connected to the base 240, and is rotatably connected to the top beam 210; one end of the column 230 is arranged at the end of the base 240 away from the hydraulic column 220, and the other end is connected to the end of the top beam 210 close to the hydraulic column 220. The end of the top beam 210 away from the telescopic column 241 is hinged with a baffle 212, and the lower end surface of the baffle 212 is hinged with a hydraulic jack, and the other end of the hydraulic jack is connected to the top beam 210, and is used to drive the baffle 212 to rotate along the hinge.

[0068] A hydraulic column 220 is used to replace the four-link structure, and the column 230 is tilted to solve the problem of damage to the side wall of the tunnel when the four-link mechanism is extended and retracted. By tilting the column 230, the top beam 210 of the support bracket 200 is simpler and more convenient to support. A baffle 212 is set on the top beam 210 of the support bracket 200. The length of the baffle 212 is adjusted according to the size of the top beam 210 to ensure that the baffle 212 can cover the lower end surface of the top beam 210. A cylinder is set at one end of the top beam 210 away from the hydraulic column 220. A rotating shaft is arranged on one side of the baffle 212, which is rotatably connected with the cylinder and limited by means of latches, etc., so as to realize the hinge connection between the baffle 212 and the top beam 210. Two opposite arc plates are arranged on one side of the baffle 212, and threaded holes are arranged on the arc plates. The telescopic end of the hydraulic jack is connected with an ear plate, which extends between the two arc plates and is hinged by bolts. The fixed end of the hydraulic jack is arranged in the top beam 210. When the support bracket 200 is in the supporting state, the hydraulic jack is extended outward to drive the baffle 212 to rotate. When the baffle 212 contacts the opposite side wall, the hydraulic jack stops extending. When the support bracket 200 moves, the hydraulic jack is retracted to drive the baffle 212 to rotate and cover the lower end surface of the top beam 210.

[0069] See also Figures 8 to 12, a method for supporting a return air lane without a reciprocating support structure in full section is provided, a fixed support 100 is provided at the beginning of the lane, a manipulator support 300 is provided at the end, and n supporting supports 200 are provided in the middle, the first supporting support 200 is close to the fixed support 100, and the nth supporting support 200 is close to the manipulator support 300; the method comprises the following steps:

[0070] In the initial state (support state), the top of the fixed support 100 is in contact with the top of the tunnel, the winding member 110 is in the winding state, the sliding member 250 is close to one side of the fixed support 100, the top of the manipulator support 300 is in contact with the top of the tunnel, and the top beams 210 of all support supports 200 (taking n support supports 200 as an example, and named as the first support support 200, the second support support 200...the nth support support 200 along the direction of the tunnel, this naming is only for the convenience of description and has nothing to do with the actual number and name of the support supports 200) are in contact with the top of the tunnel.

[0071] Step S10. The first adjustment of the angle of the nth support bracket 200: lowering the top beam 210 of the nth support bracket 200, and adjusting the nth support bracket 200 from a direction perpendicular to the direction of the laneway to a direction parallel to the direction of the laneway through the manipulator bracket 300;

[0072] Lower the top beam 210 of the nth supporting bracket 200 to separate it from the top of the tunnel, connect the manipulator bracket 300 with the connecting hole at the front end of the base 240 of the nth supporting bracket 200, drive the nth supporting bracket 200 to move and rotate through rotation and extension, disconnect the manipulator bracket 300 from the nth supporting bracket 200, and then connect the manipulator bracket 300 with the connecting hole at the rear end of the base 240 of the nth supporting bracket 200, continue to rotate and extend, so that the travel direction of the nth supporting bracket 200 is parallel to the direction of the tunnel; extend the telescopic column 241 of the nth supporting bracket 200, and connect the manipulator bracket 300 with the connecting ear of the nth supporting bracket 200.

[0073] Step S20. The nth support bracket 200 moves:

[0074] Step S21. The manipulator support 300 is detachably connected to the end of the base 240 of the nth support support 200 away from the telescopic column 241, the manipulator support 300 is lowered, and the telescopic column 241 of the nth support support 200 is extended out of the base 240;

[0075] Step 22. The telescopic column 241 of the n-2 support bracket 200 extends out of the base 240 and is detachably connected to the telescopic column 241 of the n-2 support bracket 200. With the n-2 support bracket 200 as a fulcrum, the n-2 support bracket 200 contracts, driving the base 240 of the n-2 support bracket 200 and the manipulator bracket 300 to move toward the direction close to the fixed bracket 100;

[0076] Step S23. Slide the sliding member 250 to the end of the slide rail 211 of the n-1 support bracket 200. At the same time, the n-1 support bracket 200 stops when it moves to the bottom of the top beam 210 of the n-1 support bracket 200, disconnect the n-1 support bracket 200 and the manipulator bracket 300, and fix the sliding member 250 to the n-1 support bracket 200;

[0077] Extend the telescopic column 241 of the n-2 support bracket 200 and detachably connect it with the telescopic column 241 of the n-2 support bracket 200; lower the top of the manipulator bracket 300, and then use the n-2 support bracket 200 as a fulcrum to retract the telescopic column 241 of the n-2 support bracket 200, so that it drives the manipulator bracket 300 to move closer to the telescopic column 241 of the n-2 support bracket 200; after the telescopic column 241 of the n-2 support bracket 200 is retracted to the base 240 of the n-1 support bracket 200 (at this time, the n-1 support bracket 200 is located below the n-1 support bracket 200), disconnect it from the telescopic column 241 of the n-2 support bracket 200, and disconnect the n-2 support bracket 200 from the manipulator bracket 300; raise the top of the manipulator bracket 300 to make it contact with the top of the tunnel.

[0078] Step S30. Transporting the nth support bracket 200:

[0079] Step S31. The manipulator support 300 is lifted to contact the top of the tunnel, and the sliding member 250 lifts the nth support support 200 to make it leave the ground;

[0080] Step S32. Open the winding member 110 of the fixed support 100, drive the sliding member 250 and the nth support support 200 fixed on the sliding member 250 to move along the slide rail 211 to the first support support 200, and lower the nth support support 200, disconnect the nth support support 200 and the sliding member 250;

[0081] Step S33. Extend the telescopic column 241 of the nth supporting bracket 200 and detachably connect it to the fixed bracket 100. With the fixed bracket 100 as a fulcrum, retract the telescopic column 241 of the nth supporting bracket 200 to drive the nth supporting bracket 200 to move toward the fixed bracket 100.

[0082] The sliding member 250 is manually slid from one side of the fixed bracket 100 to one side of the n-1th supporting bracket 200, and is detachably connected to the base 240 of the nth supporting bracket 200 (connected to the connecting holes around the base 240 by means of hooks, snap rings, etc.), and the nth supporting bracket 200 is pulled up to separate the base 240 from the bottom surface of the tunnel; the winding member 110 on the fixed bracket 100 is opened to pull the sliding member 250 and drive the nth supporting bracket 200 to move along the slide rail 211 to the bottom of the first supporting bracket 200; the nth supporting bracket 200 is lowered to fall back to the ground of the tunnel, and the connection between the sliding member 250 and the nth supporting bracket 200 is disconnected.

[0083] Step S40. The angle of the nth support bracket 200 is adjusted for the second time: the nth support bracket 200 is adjusted from a direction parallel to the direction of the laneway to a direction perpendicular to the direction of the laneway by fixing the bracket 100, and the top beam 210 of the nth support bracket 200 is lifted for support;

[0084] Extend the telescopic column 241 of the nth supporting bracket 200 and make it detachably connected to the bottom of the fixed bracket 100, and with the fixed bracket 100 as the fulcrum, retract the telescopic column 241 of the nth supporting bracket 200 until it retracts back into the nth supporting bracket 200 and stops, and disconnect the nth supporting bracket 200 from the fixed bracket 100; connect the manipulator 120 of the fixed bracket 100 to the connecting hole at the front end of the nth supporting bracket 200, and rotate and retract to rotate the angle of the nth supporting bracket 200; disconnect, and connect the manipulator 120 to the connecting hole at the rear end of the nth supporting bracket 200, rotate and retract again, stop when the nth supporting bracket 200 is side by side with the first supporting bracket 200, disconnect the nth supporting bracket 200 from the manipulator 120, and raise the top beam 210 of the nth supporting bracket 200 to make it contact with the top of the tunnel to complete the support.

[0085] Step S50: Renumber the support bracket 200 and repeat steps S10 to S40.

[0086] When the nth supporting bracket 200 has moved and completed the support, the numbering starts again from one end of the fixed bracket 100, and is sequentially the first supporting bracket 200, the second supporting bracket 200 ... the nth supporting bracket 200; continue to work, and after the coal mining work is completed, continue to repeat the above steps.

[0087] The present application adopts a technical solution of a support method for the full-section return airway without a reciprocating support structure to achieve the following beneficial effects:

[0088] 1. By arranging a slide rail 211 and a sliding member 250 on the supporting bracket 200, the sliding member 250 is used to raise the height of the supporting bracket 200, and then the fixed bracket 100 pulls the sliding member 250 to drive the movement of the supporting bracket 200, so as to complete the movement of the supporting bracket 200; the problem that the advanced bracket cannot be moved forward due to the gangue rising from the bottom plate of the tunnel is solved, thereby greatly affecting the advancement of normal production.

[0089] 2. By using the manipulator support 300 in cooperation with the support support 200, the problem of difficulty in turning the support support 200 due to the narrow lane and the inability of equipment to enter is solved.

[0090] 3. By transporting the support bracket 200 close to the working area to the end far away from the working area for support in sequence, the problem of difficult operation and low safety factor of the support bracket 200 being required to perform reciprocating support is solved.

[0091] 4. Through the coordinated support of the fixed bracket 100, the manipulator bracket 300 and the supporting bracket 200, the occurrence of bottom drum is avoided and the space for pedestrians and ventilation is guaranteed.

[0092] The above-described embodiments only express the way of equipment layout of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application; it should be pointed out that for ordinary technicians in this field, several adjustments and improvements can be made without departing from the concept of the present application, which all belong to the scope of protection of the present application; therefore, the scope of protection of the patent of this application shall be based on the attached claims.

Claims

1. A full-section non-reciprocating support structure for a return airway, characterized in that: include: A fixed bracket, which is arranged at the beginning of the lane and is provided with a winding member and a manipulator; A support bracket, wherein a plurality of support brackets are provided, and the support bracket comprises a top beam, a column and a base, the two ends of the column are respectively connected to the top beam and the base, a telescopic column is provided at one end of the base, and the telescopic column can reciprocate and telescope along the direction of movement of the base; a slide rail is detachably connected to the top beam, the slide rail is parallel to the direction of the lane, and a sliding member is slidably connected to the slide rail, one end of the sliding member is connected to the traction rope of the winding member, and is used to lift and transport the support bracket; the base is detachably connected to the manipulator, and is used to adjust the direction of the base; as well as A manipulator support, wherein the manipulator support is arranged opposite to the fixed support and is located at the opposite end, and the manipulator support is detachably connected to the supporting support and is used to move the supporting support and perform steering.

2. The full-section non-reciprocating support structure of the return airway according to claim 1 is characterized in that: Two adjacent slide rails are detachably connected using a connecting piece.

3. The full-section non-reciprocating support structure of the return airway according to claim 2 is characterized in that: The connecting member includes a clamping plate and a bolt. The end of the slide rail is provided with a through hole, and both ends of the clamping plate are provided with round holes. The bolt passes through the round holes and the through holes to fix the clamping plate and the slide rail.

4. The full-section non-reciprocating support structure of the return airway according to claim 1 is characterized in that: The sliding member comprises a base and a chain. The base is slidably connected to the slide rail. The chain is arranged on the base and is detachably connected to the base.

5. The full-section non-reciprocating support structure of the return airway according to claim 4 is characterized in that: A chain disc is provided at one end of the chain, and the chain disc can retract or extend the chain to drive the chain to rise or fall.

6. The full-section non-reciprocating support structure of the return airway according to claim 4 is characterized in that: The base is provided with a roller, which is slidably connected to the slide rail and rotatably connected to the base.

7. The full-section non-reciprocating support structure of the return airway according to claim 1 is characterized in that: A hydraulic column is arranged on the base, the hydraulic column is vertically connected to the base and is rotatably connected to the top beam; one end of the column is arranged at an end of the base away from the hydraulic column, and the other end is connected to an end of the top beam close to the hydraulic column.

8. The full-section non-reciprocating support structure and support method of the return airway according to claim 7, characterized in that: A baffle is hingedly connected to one end of the top beam away from the telescopic column, a hydraulic jack is hingedly connected to the lower end surface of the baffle, and the other end of the hydraulic jack is connected to the top beam for driving the baffle to rotate along the hinge.

9. A method for supporting a return airway without a reciprocating support structure over the entire cross section, characterized in that: The full-section non-reciprocating support structure of the return air lane according to any one of claims 1 to 8 is applied, a fixed bracket is provided at the beginning of the lane, a manipulator bracket is provided at the end, and n supporting brackets are provided in the middle, the first supporting bracket is close to the fixed bracket, and the nth supporting bracket is close to the manipulator bracket; comprising the following steps: Step S10. The first adjustment of the angle of the nth support bracket: lowering the top beam of the nth support bracket, and adjusting the nth support bracket from a direction perpendicular to the direction of the laneway to a direction parallel to the direction of the laneway through the manipulator bracket; Step S20. The nth support bracket moves: Step S21. The manipulator support is detachably connected to the end of the base of the nth support support away from the telescopic column, the manipulator support is lowered, and the telescopic column of the nth support support is extended out of the base; Step 22. The telescopic column of the n-2 support bracket extends out of the base and is detachably connected to the telescopic column of the n-2 support bracket. With the n-2 support bracket as the fulcrum, the n-2 support bracket contracts, driving the base of the n-2 support bracket and the manipulator bracket to move toward the fixed bracket; Step S23. Slide the sliding member to the end of the slide rail of the n-1 support bracket. At the same time, the n-2 support bracket stops when it moves to the bottom of the top beam of the n-1 support bracket, disconnect the n-2 support bracket and the manipulator bracket, and fix the sliding member to the n-2 support bracket; Step S30. Transporting the nth support bracket: Step S31. The manipulator support is lifted to contact the top of the tunnel, and the sliding member lifts the nth support support to leave the ground; Step S32. Open the winding member of the fixed support, drive the sliding member and the nth support support fixed on the sliding member to move along the slide rail to the first support support, and lower the nth support support, disconnect the nth support support and the sliding member; Step S33. Extend the telescopic column of the nth supporting bracket and detachably connect it to the fixed bracket, and use the fixed bracket as a fulcrum to shrink the telescopic column of the nth supporting bracket, so as to drive the nth supporting bracket to move toward the fixed bracket; Step S40. The angle of the nth support bracket is adjusted for the second time: the nth support bracket is adjusted from a direction parallel to the direction of the laneway to a direction perpendicular to the direction of the laneway by fixing the bracket, and the top beam of the nth support bracket is lifted for support; Step S50: Renumber the support brackets and repeat steps S10 to S40.

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