Fully-mechanized excavation face monorail crane temporary support for coal mine and using method of fully-mechanized excavation face monorail crane temporary support

Abstract

The invention discloses a fully mechanized excavation face monorail crane temporary support for a coal mine and a using method thereof, and belongs to the technical field of underground temporary support devices. The device comprises a support beam, a lifting frame, a support frame and a hydraulic pump station which are sequentially connected from front to back, a roadway top plate is supported through the supporting beam, the front side is protected through the front protection wall, the lifting frame controls overall lifting of the supporting beam on the front side, the supporting frame and the supporting beam front support are used for supporting and fixing, shaking is prevented, and the supporting capacity is enhanced; the hydraulic temporary supporting device effectively solves the problems that when traditional hydraulic temporary supporting equipment is applied to a coal mine fully-mechanized excavation face, the supporting efficiency and safety are poor.

Description

Technical Field

[0001] The present invention relates to the technical field of underground temporary support devices, and particularly to a single-track crane temporary support for a fully-mechanized heading face in coal mines and its usage method. Background Art

[0002] In coal mining operations, the safety support of the fully-mechanized heading face is a key link to ensure the smooth progress of production and the safety of personnel. With the continuous increase in the depth of coal resource mining and the continuous expansion of the mining scale, the geological conditions faced by roadway driving are becoming increasingly complex, posing higher requirements for the performance and adaptability of temporary support equipment. Traditional hydraulic temporary support equipment still has many limitations in the specific usage process. Some hydraulic equipment is large in volume and heavy in weight, making it extremely inconvenient to move and install in the narrow roadway space underground. This not only reduces the driving efficiency but also increases the costs of equipment transportation and installation. Moreover, the support functions of these equipment are relatively single, and it is difficult to simultaneously meet the support requirements for different parts such as the roadway roof and side walls. When encountering situations where the roadway cross-section shape is irregular or the roof undulates greatly, the existing hydraulic support equipment cannot achieve precise support, easily resulting in support blind spots and affecting the overall support effect. To overcome the above problems existing in the prior art and improve the support efficiency and safety of the fully-mechanized heading face in coal mines, the present invention provides a single-track crane temporary support for a fully-mechanized heading face in coal mines and its usage method to achieve efficient and precise support for the roadway and meet the actual needs of coal mining under complex geological conditions. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to provide a single-track crane temporary support for a fully-mechanized heading face in coal mines to solve the problem of poor support efficiency and safety when traditional hydraulic temporary support equipment is applied to the fully-mechanized heading face in coal mines.

[0004] To solve the above problems, the present invention provides the following technical solutions: A single-track crane temporary support for a fully-mechanized heading face in coal mines; it includes a support beam, a lifting frame, a support frame, and a hydraulic pump station that are connected in sequence from front to back; The support beam includes a support main frame; a front extension oil cylinder is provided on the support main frame; a front support leg support is installed at the extending end of the front extension oil cylinder; a front support leg oil cylinder and a front support leg flipping oil cylinder are rotatably installed on the front support leg support; one end of the front support leg flipping oil cylinder is hinged and installed in the middle of the front support leg oil cylinder; a front protective wall is also installed on the upper side of the front support leg oil cylinder; a slewing oil cylinder connecting piece is also installed at the rear side of the support main frame; The lifting frame includes a front rotary support plate; a rotary oil cylinder is installed on the front side end face of the front rotary support plate; the lifting frame and the support beam are rotatably connected through the rotary oil cylinder and the rotary oil cylinder connecting piece; a front oil cylinder seat is installed on the rear side end face of the front rotary support plate; a lifting support arm is pivotally installed on the front oil cylinder seat; the lifting support arm is a telescopic structure with an oil cylinder built in; a rear oil cylinder seat is installed at the other end of the lifting support arm; ear plates are provided at both the fixed end and the movable end of the lifting support arm, and lifting oil cylinders are pivotally installed between the front oil cylinder seat and the rear oil cylinder seat and the corresponding ear plates. The support frame includes a front end cross arm; a first carrier vehicle support seat is installed in the middle of the front side end face of the front end cross arm, and receiving plates are installed on both the left and right sides of the front side end face; the lifting frame and the support frame are connected at the receiving plate and the rear oil cylinder seat; the front end cross arm is a box-shaped structure with a hollow interior and open ends on both sides, and a pair of transverse telescopic arms are provided in the inner cavity of the front end cross arm; the extending ends of the two transverse telescopic arms extend corresponding to the open sides of the front end cross arm; a rear leg support seat is installed at the extending end of the transverse telescopic arm; a rear leg oil cylinder and a rear leg turning oil cylinder are pivotally installed on the rear leg support seat; the other end of the rear leg turning oil cylinder is pivotally installed in the middle of the rear leg oil cylinder; a longitudinal support arm is installed at the rear side of the front end cross arm; a support top support seat is installed on the longitudinal support arm; a support top oil cylinder and a support top turning oil cylinder are pivotally installed on the support top support seat; one end of the support top turning oil cylinder is pivotally installed in the middle of the support top oil cylinder; a rear end cross arm is installed at the other end of the longitudinal support arm. The hydraulic pump station includes a base; a connecting plate is provided on the front side of the base; the hydraulic pump station and the support frame are installed and connected by attaching the connecting plate to the back side of the rear end cross arm; a valve group support and a vacuum magnetic starter are installed at the left position on the base; a control valve group and a remote control receiving box are installed on the valve group support; a motor is installed at the right position on the base; a second carrier vehicle support seat is installed at the middle position on the front side of the base; a fuel tank is installed at the rear position on the base; the fuel tank is arranged along the width direction of the base, and a concave portion is provided in the middle of the fuel tank along the center line in the length direction of the base; docking plates and connecting supports are respectively provided on the front and rear sides of the base; vertical frames are respectively provided on the left and right sides of the base; a protective plate is provided on the vertical frame; the base, the vertical frame and the protective plate enclose the valve group support, the vacuum magnetic starter, the control valve group, the remote control receiving box and the motor inside; the boom is arranged between the two vertical frames. Carrier vehicles are installed on both the first carrier vehicle support seat and the second carrier vehicle support seat through the boom; the carrier vehicle can move on the single rail in the roadway.

[0005] Preferably, the main support frame is a structure with a hollow interior and open ends on the left and right side ends; the forward extension oil cylinder is installed on the upper top surface of the main support frame; telescopic push rods that can extend from its two open ends are respectively provided in the inner cavity of the main support frame, and forward extension oil cylinders are also installed on the end sides of the telescopic push rods.

[0006] Preferably, the front protective wall is a foldable grid network structure that can be unfolded along the width direction of the roadway; when the front protective wall is in a folded state, its width is the same as the distance between two front extension cylinders on the support main frame.

[0007] Preferably, the front oil cylinder seat and the rear oil cylinder seat are L-shaped support plate structures with similar structures; the extending end of the front oil cylinder seat is arranged on the lower side, and the rear oil cylinder seat is arranged on the upper side; both ends of the lifting support arm are respectively hinged and installed at the corresponding extending end positions on the front oil cylinder seat and the rear oil cylinder seat; the lifting oil cylinder on the front oil cylinder seat is obliquely connected to the middle position of the upper surface of the movable end of the lifting support arm; the lifting oil cylinder on the rear oil cylinder seat is obliquely connected to the middle position of the lower surface of the fixed end of the lifting support arm.

[0008] Preferably, there are two pairs of flange plates arranged on the opposite end faces of the front cross arm and the rear cross arm; the number of longitudinal support arms is two, and the front and rear ends of the two longitudinal support arms are respectively installed on the flange plates through bolt assemblies; the receiving plate is also a flange plate structure; the first carrier vehicle support is a cantilevered flat member arranged horizontally, and a positioning through hole is opened in the middle of the first carrier vehicle support; and a hinge seat is installed at the positioning through hole; there is also a rib plate arranged between the lower bottom surface of the first carrier vehicle support and the front cross arm.

[0009] Preferably, the rear leg support and the supporting top support have similar structures, and both are L-shaped support plate structures; an inclined supporting top plate is arranged on the upper top of the supporting top oil cylinder; and a number of anti-slip top pins are arranged on the inclined supporting top plate.

[0010] Preferably, the base includes a rectangular frame; a pair of longitudinal rods are arranged in the middle of the rectangular frame along the width direction; a window for placing the lifting support is separated by a cross rod at the front side of the gap between the longitudinal rods; there is also a reinforcing longitudinal rod arranged between the rectangular area surrounded by the two longitudinal rods, the cross rod between the longitudinal rods and the rectangular frame; a number of reinforcing cross rods are arranged between the left and right sides of the longitudinal rods and the rectangular frame; positioning plates are installed at the positions corresponding to the vacuum magnetic starter, the motor and the fuel tank on the left and right sides of the base; positioning holes are opened on the positioning plates; and protective plates are installed at the positions corresponding to the left, middle and right sides of the lower bottom surface of the base.

[0011] Preferably, the valve group support includes two relatively placed square frames; a pair of positioning strip plates are respectively arranged on the upper and lower sides between the two square frames; strip holes are opened on the positioning strip plates; the control valve group is installed between the upper and lower pairs of positioning strip plates; the remote control receiving box is installed on the upper positioning strip plate; the lifting support includes a clamping plate with a C-shaped cross section; the clamping plate is buckled on the base, and a through hole is opened on the upper top of the clamping plate, and a hinge seat is installed at the through hole; the lifting arm is rotatably installed on the lifting support through the hinge seat; and a reinforcing rib plate is also arranged between the outer side of the lifting support and the base.

[0012] Preferably, the unilateral vertical frame includes an edge bracket installed on the end side of the base; trapezoidal brackets are also fixed at positions corresponding to the front and rear end sides of the base on the edge bracket; a cross bar is arranged between the opposite trapezoidal brackets on the two vertical frames; the back of the connecting support rests on the cross bar, and a rib plate is also installed between the top of the cross bar and the connecting support; lifting lugs are installed at positions corresponding to the four corners of the base at the upper top of the vertical frame, and a number of reinforcing rib plates are provided on the vertical frame and between the vertical frame and the base.

[0013] The present invention also provides a usage method of this kind; it includes the following steps S1. Start the motor and adjust the single-rail suspended temporary support to a position where the leg cylinders on the support frame and the support beam are suitable for expansion; S2. According to the roadway conditions, select whether to expand the lateral telescopic arm on the support frame outward so that each front extension cylinder can achieve the corresponding support effect; S3. Control the action of the rear leg flipping cylinder on the support frame, thereby controlling the rear leg cylinder to flip to a position perpendicular to the roadway ground, and then control the rear leg cylinder to extend and complete the support; S4. According to the roadway conditions, select to control the lifting frame to move so that the entire support beam moves up or down to a suitable support position; S5. According to the roadway conditions, adjust the rotation angle of the support beam through the slewing cylinder, preferably making the support surface parallel to the roof of the roadway to facilitate subsequent operations; S6. After the support frame is supported and fixed and the lifting frame moves to the support position, according to the roadway conditions, select whether to expand the telescopic push rod on the support beam outward so that each front extension cylinder can achieve the corresponding support effect; then control the front leg flipping cylinder to drive the front leg cylinder to flip so that the front leg cylinder is perpendicular to the roadway ground; then control the front leg cylinder to extend and complete the support; S7. Only after the single-rail temporary support is fully expanded can subsequent operations be carried out, and during the support process, no one is allowed to stand below, and operations should be carried out at a safe distance; S8. After the support operation is completed, the single-rail temporary support retracts to the initial state and moves to the next support working face for support.

[0014] The beneficial effects of the present invention are embodied in the following aspects: 1. Strong adaptability and improved support efficiency: The device adopts a compact design, and the overall width of the equipment in the walking state is only 2.3 meters. Combined with the single-rail hoist carrier system, it can move flexibly and quickly locate in a narrow roadway with a cross-section of 3.5×4.5 meters, significantly reducing the equipment transportation, installation time and labor costs; in addition, through the configuration of the lateral telescopic structure for both the support beam and the support frame, the support width can be adjusted according to actual needs to match different roadway cross-sections and eliminate the support blind area; 2. Precise support with multiple degrees of freedom to cope with complex geological conditions: Combined with the rotation cylinder to drive the horizontal rotation of the support beam, precisely adjust the support angle, and provide effective fitting support for the top surface of the roadway; the leg system adopts the control of the flip cylinder and the leg cylinder to realize the flip and telescoping of the legs, ensuring that the legs can always act vertically on the roadway ground and improving the support stability; 3. Multifunctional integrated protection to enhance operation safety: The support beam integrates a folding grid front protective wall, which can cover the width of the roadway after unfolding, forming an active protection for the side wall in front of the tunneling face to prevent gravel from collapsing; a jacking cylinder and an inclined roof support plate are added to the support frame, and the anti-slip roof pin is used to provide auxiliary roof support; the rear leg cylinder and the jacking cylinder form a multi-point support system to prevent the equipment from tipping and play a jacking effect to a certain extent; the hydraulic pump station is equipped with two sets of braking systems and remote control systems, and the operator can control all actions at a safe distance, reducing the exposure time under the roadway roof; 4. Intelligent hydraulic control, convenient and reliable operation; The control valve group, remote control receiving box and vacuum magnetic starter are integrated on the hydraulic pump station, and the actions of the cylinders are precisely regulated through wireless instructions to realize the real-time adjustment of the support parameters; ensure the safety of continuous operation; the hydraulic pump station is protected by a vertical frame protection plate and a sealed layout to protect the core components such as the valve group and the motor from underground dust and water spray erosion, and extend the service life of the equipment.

[0015] In addition, this application can meet the bearing capacity requirement of 30 kN, solves the problems of difficult movement, many support blind spots and poor adaptability of traditional hydraulic support equipment, and can effectively improve the support efficiency; it is especially suitable for roadways with large roof undulations and irregular cross-sections, reducing the comprehensive operation and maintenance cost while ensuring tunneling safety. Brief Description of the Drawings

[0016] Figure 1 is a schematic diagram of the inventive device in the roadway inner guide rail in this embodiment; Figure 2 is Figure 1 the top view of; Figure 3 is a three-dimensional structure schematic diagram of the lifting frame in this embodiment; Figure 4 is a three-dimensional structure schematic diagram of the front protective wall in this embodiment; Figure 5 is a three-dimensional structure schematic diagram of the lifting frame in this embodiment; Figure 6 is Figure 5 the three-dimensional structure schematic diagram of the device in another perspective in; Figure 7 is Figure 5 the side view of the device in; Figure 8 is the three-dimensional structure schematic diagram of the support frame in this embodiment; Figure 9 is the top view of the boom and the carrier vehicle installed on the Figure 8 device; Figure 10 is the three-dimensional structure schematic diagram of the hydraulic pump station in this embodiment; Figure 11 is Figure 10 the top view after the boom and the carrier vehicle are installed on the lifting support of the device in the Figure 12 is Figure 11 the three-dimensional structure schematic diagram after removing the protective plate and each hydraulic and electrical component in the Figure 13 is the structure schematic diagram of the base in this embodiment; Figure 14 is the three-dimensional structure schematic diagram of the valve group support in this embodiment; Figure 15 is the three-dimensional structure schematic diagram of the lifting support in this embodiment; Figure 16 is the three-dimensional structure schematic diagram of the fuel tank in this embodiment; Figure 17 is the layout schematic diagram of the wireless remote control transmitter in this embodiment; Explanation of reference numerals: 1, support beam; 2, lifting frame; 3, support frame; 4, hydraulic pump station; 5, boom; 6, carrier vehicle; 11, main support frame; 12, forward extension oil cylinder; 13, front leg support; 14, front leg oil cylinder; 15, front leg flipping oil cylinder; 16, front protective wall; 17, slewing oil cylinder connecting piece; 21, front slewing support plate; 22, slewing oil cylinder; 23, front oil cylinder seat; 24, lifting support arm; 25, rear oil cylinder seat; 26, lifting oil cylinder; 301, front end cross arm; 302, first carrier vehicle support; 303, transverse telescopic arm; 304, rear leg support; 305, rear leg oil cylinder; 306, rear leg flipping oil cylinder; 307, longitudinal support arm; 308, support top support; 309, support top oil cylinder; 310, support top flipping oil cylinder; 311, inclined support top plate; 312, anti-slip top pin; 313, rear end cross arm; 401, base; 402, valve group support; 403, vacuum magnetic starter; 404, control valve group; 405, remote control receiver box; 406, motor; 407, second carrier vehicle support; 408, connecting plate; 409, fuel tank; 410, docking plate; 411, connecting support; 412, vertical frame; 413, lifting lug. Detailed implementation manners

[0017] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments: Embodiment: Refer toFigure 1 , this embodiment provides a single-track crane temporary support for a fully-mechanized heading face in a coal mine; it includes a support beam 1, a lifting frame 2, a support frame 3, and a hydraulic pump station 4 connected in sequence from front to back; The support beam 1 includes a support main frame 11; a front extension oil cylinder 12 is arranged on the support main frame 11; a front leg support 13 is installed at the extending end of the front extension oil cylinder 12; a front leg oil cylinder 14 and a front leg flipping oil cylinder 15 are rotatably installed on the front leg support 13; one end of the front leg flipping oil cylinder 15 is hinged and installed in the middle of the front leg oil cylinder 14; a front protection wall 16 is also installed on the upper side of the front leg oil cylinder 14; a slewing oil cylinder connecting piece 17 is also installed at the rear side of the support main frame 11; The lifting frame 2 includes a front slewing support plate 21; a slewing oil cylinder 22 is installed on the front side end face of the front slewing support plate 21; the lifting frame 2 and the support beam 1 are rotatably connected through the slewing oil cylinder and the slewing oil cylinder connecting piece 17; a front oil cylinder seat 23 is installed on the rear side end face of the front slewing support plate 21; a lifting support arm 24 is articulated and installed on the front oil cylinder seat 23; the lifting support arm 24 is a telescopic structure with an oil cylinder inside; a rear oil cylinder seat 25 is installed at the other end of the lifting support arm 24; ear plates are arranged at both the fixed end and the movable end of the lifting support arm 24, and lifting oil cylinders 26 are articulated and installed between the front oil cylinder seat 23 and the rear oil cylinder seat 25 and the corresponding ear plates; The support frame 3 includes a front end cross arm 301; a first carrier vehicle support 302 is installed in the middle of the front side end face of the front end cross arm 301, and receiving plates 302 are installed on both the left and right sides of the front side end face; the lifting frame 2 and the support frame 3 are connected at the receiving plate 302 and the rear oil cylinder seat 25; the front end cross arm 301 is a box-shaped structure with a hollow interior and open ends, and a pair of transverse telescopic arms 303 are arranged in the inner cavity of the front end cross arm 301; the extending ends of the two transverse telescopic arms 303 extend out corresponding to the open side of the front end cross arm 301; a rear leg support 304 is installed at the extending end of the transverse telescopic arm 303; a rear leg oil cylinder 305 and a rear leg flipping oil cylinder 306 are articulated and installed on the rear leg support 304; the other end of the rear leg flipping oil cylinder 306 is articulated and installed in the middle of the rear leg oil cylinder 305; a longitudinal support arm 307 is installed at the rear side of the front end cross arm 301; a support top support 308 is installed on the longitudinal support arm 307; a support top oil cylinder 309 and a support top flipping oil cylinder 310 are articulated and installed on the support top support 308; one end of the support top flipping oil cylinder is articulated and installed in the middle of the support top oil cylinder 309; a rear end cross arm 313 is installed at the other end of the longitudinal support arm 307; The hydraulic pump station 4 includes a base 401; a connecting plate 408 is provided on the front side of the base 401; the hydraulic pump station 4 and the support frame 3 are installed and connected by pasting the connecting plate 408 on the back side of the rear cross arm 313; a valve group bracket 402 and a vacuum magnetic starter 403 are installed at the left position on the base 401; a control valve group 404 and a remote control receiving box 405 are installed on the valve group bracket 402; a motor 406 is installed at the right position on the base 401; a second carrier vehicle support 407 is installed at the middle position on the front side of the base 401; a fuel tank 409 is installed at the rear position on the base 401; the fuel tank 409 is arranged along the width direction of the base 401, and a concave portion is opened in the middle of the fuel tank 409 along the center line in the length direction of the base 401; docking plates 410 and connecting supports 411 are respectively provided on the front and rear sides of the base 401; vertical frames 412 are respectively provided on the left and right sides of the base 401; a protective plate is provided on the vertical frame 412; the base 401, the vertical frame 412 and the protective plate enclose the valve group bracket 402, the vacuum magnetic starter 403, the control valve group 404, the remote control receiving box 405 and the motor 406 inside; the boom is arranged between the two vertical frames 412; Carrier vehicles 6 are installed on both the first carrier vehicle support 302 and the second carrier vehicle support 407 through a boom 5; the carrier vehicle 6 can move on the single rail in the roadway.

[0018] The main support frame 11 of the support is a structure with a hollow interior and open ends on the left and right; the front extension oil cylinder 12 is installed on the upper top surface of the main support frame 11; telescopic push rods that can extend from its two open ends are respectively provided in the inner cavity of the main support frame 11, and the front extension oil cylinder 12 is also installed on the end side of the telescopic push rod. In this embodiment, the telescopic push rod can be telescoped according to the width of the roadway, so that the front extension oil cylinders on the left and right end sides can adapt to support different roadways.

[0019] The front protective wall 16 is a foldable grid network structure that can be unfolded along the width direction of the roadway; when the front protective wall 16 is in the folded state, its width size is consistent with the distance between the two front extension oil cylinders 12 on the main support frame 11. A pair of positioning plates are provided on the back side of the front protective wall, and the side wall of the front support leg oil cylinder is correspondingly connected to the positioning plates.

[0020] The front oil cylinder seat 23 and the rear oil cylinder seat 25 are L-shaped support plate structures with similar structures; the extended end of the front oil cylinder seat 23 is arranged on the lower side, and the rear oil cylinder seat 25 is arranged on the upper side; both ends of the lifting arm 24 are respectively hinged and installed at the corresponding extended end positions on the front oil cylinder seat 23 and the rear oil cylinder seat 25; the lifting oil cylinder 26 on the front oil cylinder seat 23 is obliquely connected downward to the middle position on the upper top surface of the movable end of the lifting arm 24; the lifting oil cylinder 26 on the rear oil cylinder seat 25 is obliquely connected upward to the middle position on the lower top surface of the fixed end of the lifting arm 24.

[0021] On the opposite end faces of the front cross arm 301 and the rear cross arm 313, there are two pairs of flange plates; the number of longitudinal arms 3 is two, and the front and rear end sides of the two longitudinal arms 3 are respectively installed on the flange plates through bolt assemblies; the receiving plate 302 is also of a flange plate structure; the first carrier vehicle support 302 is a cantilever-shaped flat member arranged horizontally, and a positioning through hole is opened in the middle of the first carrier vehicle support 302; and a hinge seat is installed at the positioning through hole; there is also a rib plate between the lower bottom surface of the first carrier vehicle support 302 and the front cross arm 301.

[0022] The structures of the rear leg support 304 and the jack support 308 are similar, and both are L-shaped support plate structures; on the upper top of the jack cylinder 309, there is an inclined support top plate 311; on the inclined support top plate 311, there are several anti-slip top pins 312.

[0023] The base 401 includes a rectangular frame; a pair of longitudinal bars are arranged in the middle of the rectangular frame along the width direction; a window for placing the lifting support 407 is separated by a cross bar at the front side of the gap between the longitudinal bars; there are also strengthening longitudinal bars between the rectangular areas surrounded by the two longitudinal bars, the cross bar between the longitudinal bars and the rectangular frame; there are several strengthening cross bars between the left and right sides of the longitudinal bars and the rectangular frame; positioning plates are installed at the positions corresponding to the vacuum magnetic starter 403, the motor 406 and the fuel tank 409 on the left and right sides of the base 401; positioning holes are opened on the positioning plates; protective plates are installed at the positions corresponding to the left, middle and right sides of the lower bottom of the base 401.

[0024] The valve group support 402 includes two relatively placed square frames; a pair of positioning strip plates are respectively arranged on the upper and lower sides between the two square frames; strip holes are opened on the positioning strip plates; the control valve group 404 is installed between the upper and lower pairs of positioning strip plates; the remote control receiving box 405 is installed on the upper positioning strip plate; the lifting support 407 includes a clamping plate with a C-shaped cross section; the clamping plate is buckled on the base 401, and a through hole is opened at the upper top of the clamping plate, and a hinge seat is installed at the through hole; the boom 408 is rotatably installed on the lifting support through the hinge seat; there is also a strengthening rib plate between the outside of the lifting support 407 and the base 401.

[0025] One-sided upright frame 412 includes an edge support installed on the end side of the base 401; a trapezoidal support is also fixed at the positions corresponding to the front and rear end sides of the base 401 on the edge support; a cross bar is arranged between the opposite trapezoidal supports on the two upright frames 412; the back of the connecting support 411 leans against the cross bar, and there is also a rib plate installed between the top of the cross bar and the connecting support 411; lifting lugs 413 are installed at the positions corresponding to the four corners of the base 401 on the upper top of the upright frame 412, and there are several strengthening rib plates on the upright frame 412 and between the upright frame 412 and the base 401.

[0026] In this embodiment, through holes are opened at both shoulders of the fuel tank 409 and at positions opposite to the top protection plate of the vertical frame 412; several through holes for the hydraulic pipeline to pass through are also opened on the protection plate.

[0027] The motor model used in this embodiment is YBK3 - 225M - 4.

[0028] Reference Figure 16 ; The two large round holes at both shoulders of the fuel tank are respectively the liquid inlet platform and the air filter interface platform. A KJ2 - 19 straight pipe is on its side. Breather ports are provided at positions corresponding to the lower sides of the air filter interface platform and the liquid inlet platform on its front end face. A strip - shaped return liquid sealing plate is also provided below the liquid inlet platform; an outlet liquid platform is also provided on the lower side of its front end face The overall external dimensions of this equipment are small, with a compact structure, multiple functions, and high efficiency. The width of the vehicle body is 2.3 meters, it can pass through roadways of 3.5×4.5 meters and above, the rated bearing capacity is 30KN, the walking speed is 0.3 meters per second, it is suitable for use in short - running distances, and the equipment provides two braking means: manual safety braking and automatic braking.

[0029] The support beam in this application can directly contact the roof, provide active support force to prevent the roof from caving; adjust the support height and lateral width through the hydraulic system to adapt to different roadway cross - sections.

[0030] The lifting frame can drive the support beam to lift and rotate, accurately match the roof height and angle, and at the same time maintain a constant support force through control to cope with the roof pressure fluctuation.

[0031] The support frame bears the weight of the support beam and the lifting frame, and is also rigidly connected to the hydraulic pump station, and can be integrally shifted through movement on the track; it provides stable support to prevent the equipment from tilting or sliding.

[0032] The single - rail temporary support hydraulic pump station provides power for the hydraulic system, drives the cylinder to expand and contract, and realizes the lifting, lateral expansion and locking actions of the support beam; controls the output pressure by adjusting the hydraulic pump to ensure safe operation.

[0033] During the support process, the support beam supports the roadway roof, and provides protection to the front side through the front protection wall. The lifting frame controls the overall lifting of the front - side support beam. The support frame and the front support of the support beam are used for support fixation to prevent shaking and strengthen the support ability.

[0034] In the present invention, the remote - control receiving box of the hydraulic pump station is a controller integrated with a wireless communication module, enabling the staff to control the output actions of the hydraulic pump station by sending wireless information. The layout of the wireless remote - control transmitter used in this application is as Figure 17 shown; the functions of its respective operating handles are as follows: 1. Power supply: Turn on the remote transmitter for single-track temporary support; 2. Start-up: The single-track temporary support starts the hydraulic pump station to supply liquid to the hydraulic system; 3. Shutdown: The single-track temporary support stops the hydraulic pump station and stops supplying liquid; 4. Emergency stop: The single-track temporary support directly interrupts all current actions; 5. Travel: The single-track temporary support moves forward and backward; 6. Lateral expansion action of the left rear leg: The left rear leg of the support frame of the single-track temporary support laterally expands and extends outwards or retracts inwards; 7. Lateral expansion action of the right rear leg: The right rear leg of the support frame of the single-track temporary support laterally expands and extends outwards or retracts inwards; 8. Flip action of the rear legs: The left and right rear legs of the support frame of the single-track temporary support flip downwards or retract upwards; 9. Action of the left rear leg: The left rear leg of the support frame of the single-track temporary support extends downwards or retracts upwards; 10. Action of the right rear leg: The right rear leg of the support frame of the single-track temporary support extends downwards or retracts; 11. Action of the right support top: The right support top above the support frame of the single-track temporary support lifts up or lowers; 12. Action of the left support top: The left support top above the support frame of the single-track temporary support lifts up or lowers; 13. Lifting and lowering action of the lifting arm: The lifting arm of the lifting frame of the single-track temporary support lifts up or lowers; 14. Telescoping action of the lifting arm: The lifting arm of the lifting frame of the single-track temporary support extends upwards or retracts downwards; 15. Leveling adjustment action of the lifting arm: The lifting frame of the single-track temporary support moves to the left or right; 16. Rotation action of the support beam: The support beam of the single-track temporary support rotates to the left and right; 17. Action of the support beam: The two supports in the middle of the support beam of the single-track temporary support extend forward or retract backward; 18. Action on the left side of the support beam: The left side of the support beam of the single-track temporary support expands outwards or retracts inwards; 19. Action on the right side of the support beam: The right side of the support beam of the single-track temporary support expands outwards or retracts inwards; 20. Action of the front legs: The front legs of the support beam of the single-track temporary support flip downwards or retract upwards; 21. Action of the left front leg: The left front leg of the support beam of the single-track temporary support extends forward or retracts backward; 22. Action of the right front leg: The right front leg of the support beam of the single-track temporary support extends forward or retracts backward; 23. Spare: Add functions according to requirements.

[0035] Before the carrier vehicle starts moving, it is necessary to turn on the power supply first; then turn on the power supply of the remote control transmitter and start the motor; visually inspect the current state of the single-track temporary support to ensure that the outriggers and roof supports are retracted, and the support beam, lifting frame, and support frame can move normally without any obstacle interference; send a walking signal to the remote control receiver box on the hydraulic pump station through the remote control transmitter, and drive the temporary support below to start walking by the carrier vehicle.

[0036] The operation process during the support operation can refer to the following steps; S1. Start the motor and adjust the single-track suspended temporary support to the position where the outrigger cylinders on the support frame 3 and the support beam 1 are suitable for extension; S2. According to the roadway conditions, choose whether to extend the lateral telescopic arm 303 on the support frame 3 outward so that each front extension cylinder 12 can achieve the corresponding support effect; S3. Control the action of the rear outrigger flipping cylinder 306 on the support frame 3, thereby controlling the rear outrigger cylinder 305 to flip to a position perpendicular to the roadway floor, and then control the rear outrigger cylinder 305 to extend and complete the support; S4. According to the roadway conditions, choose to control the lifting frame 2 to move so that the entire support beam 1 moves up or down to a suitable support position; S5. According to the roadway conditions, adjust the rotation angle of the support beam 1 through the slewing cylinder, preferably making the support surface parallel to the roof of the roadway to facilitate subsequent operations; S6. After the support frame 3 is supported and fixed, and the lifting frame 2 moves to the support position, according to the roadway conditions, choose whether to extend the telescopic push rod on the support beam 1 outward so that each front extension cylinder 12 can achieve the corresponding support effect; then control the front outrigger flipping cylinder 15 to drive the front outrigger cylinder 14 to flip so that the front outrigger cylinder 14 is perpendicular to the roadway floor; then control the front outrigger cylinder 14 to extend and complete the support; S7. Only after the single-track temporary support is fully extended can subsequent operations be carried out, and during the support process, no one is allowed to stand below, and operations should be carried out at a safe distance; S8. After completing the support operation, the single-track temporary support retracts to the initial state and moves to the next support working face for support.

[0037] In step S3, the roof support flipping cylinder can be used to drive the roof support cylinder to rotate according to actual needs, and the roof of the roadway can be supported by controlling the extension and retraction of the roof support cylinder.

[0038] The above operation procedures are for reference only. During on-site operations, adjustments can be made according to actual situations to explore the best construction plan and improve the roadway support efficiency.

Claims

1. A single-track crane temporary support for a fully-mechanized heading face in a coal mine, characterized in that: It includes a support beam (1), a lifting frame (2), a support frame (3) and a hydraulic pump station (4) connected in sequence from front to back; The support beam (1) includes a main support frame (11); a front extension oil cylinder (12) is arranged on the main support frame (11); a front leg support (13) is installed at the extending end of the front extension oil cylinder (12); a front leg oil cylinder (14) and a front leg turning oil cylinder (15) are rotatably installed on the front leg support (13); one end of the front leg turning oil cylinder (15) is hinged and installed in the middle of the front leg oil cylinder (14); a front retaining wall (16) is also installed on the upper side of the front leg oil cylinder (14); a rotary oil cylinder connecting part (17) is also installed at the rear side of the main support frame (11); The lifting frame (2) includes a front rotary support plate (21); a rotary oil cylinder (22) is installed on the front side end face of the front rotary support plate (21); the lifting frame (2) and the support beam (1) are rotatably connected through the rotary oil cylinder and the rotary oil cylinder connecting part (17); a front oil cylinder seat (23) is installed on the rear side end face of the front rotary support plate (21); a lifting support arm (24) is connected and installed on the front oil cylinder seat (23) by hinge; the lifting support arm (24) is a telescopic structure with an oil cylinder inside; a rear oil cylinder seat (25) is installed at the other end of the lifting support arm (24); ear plates are arranged at both the fixed end and the movable end of the lifting support arm (24), and lifting oil cylinders (26) are hinged and installed between the front oil cylinder seat (23), the rear oil cylinder seat (25) and the corresponding ear plates; The support frame (3) includes a front end cross arm (301); a first carrier vehicle support (302) is installed in the middle of the front side end face of the front end cross arm (301), and receiving plates (302) are installed on both the left and right sides of the front side end face; the lifting frame (2) and the support frame (3) are connected at the receiving plate (302) and the rear oil cylinder seat (25); the front end cross arm (301) is a box-shaped structure with a hollow interior and open ends at both ends, and a pair of transverse telescopic arms (303) are arranged in the inner cavity of the front end cross arm (301); the extending ends of the two transverse telescopic arms (303) extend corresponding to the open sides of the front end cross arm (301); a rear leg support (304) is installed at the extending end of the transverse telescopic arm (303); a rear leg oil cylinder (305) and a rear leg turning oil cylinder (306) are hinged and installed on the rear leg support (304); the other end of the rear leg turning oil cylinder (306) is hinged and installed in the middle of the rear leg oil cylinder (305); a longitudinal support arm (307) is installed at the rear side of the front end cross arm (301); a support top support (308) is installed on the longitudinal support arm (307); a support top oil cylinder (309) and a support top turning oil cylinder (310) are hinged and installed on the support top support (308); one end of the support top turning oil cylinder is hinged and installed in the middle of the support top oil cylinder (309); a rear end cross arm (313) is installed at the other end of the longitudinal support arm (307); The hydraulic pump station (4) includes a base (401); a connecting plate (408) is provided on the front side of the base (401); the hydraulic pump station (4) and the support frame (3) are installed and connected by attaching the connecting plate (408) to the back side of the rear cross arm (313); a valve group support (402) and a vacuum magnetic starter (403) are installed at the left position on the base (401); a control valve group (404) and a remote control receiving box (405) are installed on the valve group support (402); a motor (406) is installed at the right position on the base (401); a second carrier vehicle support (407) is installed at the middle position on the front side of the base (401); a fuel tank (409) is installed at the rear position on the base (401); the fuel tank (409) is arranged along the width direction of the base (401), and a concave portion is opened along the midline in the length direction of the base (401) in the middle of the fuel tank (409); docking plates (410) and connection supports (411) are respectively provided on the front and rear sides of the base (401); vertical frames (412) are respectively provided on the left and right sides of the base (401); a protective plate is provided on the vertical frame (412); the base (401), the vertical frame (412) and the protective plate enclose the valve group support (402), the vacuum magnetic starter (403), the control valve group (404), the remote control receiving box (405) and the motor (406) inside; the boom (5) is arranged between the two vertical frames (412). Carrier vehicles (6) are installed on both the first carrier vehicle support (302) and the second carrier vehicle support (407) through the boom (5); the carrier vehicles (6) can move on the single rail in the roadway.

2. The single-track crane temporary support for fully-mechanized heading face in coal mine according to claim 1, characterized in that: The main support frame (11) has a structure with a hollow interior and open ends on the left and right side; the forward extension oil cylinder (12) is installed on the upper top surface of the main support frame (11); telescopic push rods that can extend from its two open ends are respectively provided in the inner cavity of the main support frame (11), and forward extension oil cylinders (12) are also installed at the end sides of the telescopic push rods.

3. The single-track crane temporary support for fully-mechanized heading face in coal mine according to claim 1, characterized in that: The front protective wall (16) is a foldable grid network structure that can be unfolded along the width direction of the roadway; when the front protective wall (16) is in the folded state, its width size is consistent with the distance between the two forward extension oil cylinders (12) on the main support frame (11).

4. The single-track crane temporary support for a fully-mechanized heading face in a coal mine according to claim 1, wherein: The front oil cylinder seat (23) and the rear oil cylinder seat (25) are L-shaped support plate structures with similar structures; the extending end of the front oil cylinder seat (23) is arranged on the lower side, while the rear oil cylinder seat (25) is arranged on the upper side; both ends of the lifting support arm (24) are respectively hinged and installed at the corresponding extending end positions on the front oil cylinder seat (23) and the rear oil cylinder seat (25); the lifting oil cylinder (26) on the front oil cylinder seat (23) is obliquely connected to the middle position on the upper top surface of the movable end of the lifting support arm (24); the lifting oil cylinder (26) on the rear oil cylinder seat (25) is obliquely connected to the middle position on the lower top surface of the fixed end of the lifting support arm (24).

5. The single-track crane temporary support for fully-mechanized tunneling face in coal mine according to claim 1, characterized in that: On the opposite end faces of the front cross arm (301) and the rear cross arm (313), there are two pairs of flange plates; the number of longitudinal support arms (3) is two, and the front and rear end sides of the two longitudinal support arms (3) are respectively mounted on the flange plates through bolt assemblies; the receiving plate (302) is also of a flange plate structure; the first carrier vehicle support (302) is a cantilevered flat member arranged horizontally, and a positioning through hole is opened in the middle of the first carrier vehicle support (302); and a hinge seat is installed at the positioning through hole; a rib plate is also provided between the lower bottom surface of the first carrier vehicle support (302) and the front cross arm (301).

6. A single-track crane temporary support for fully-mechanized heading face in coal mine according to claim 1, characterized in that: The structures of the rear leg support (304) and the jacking support (308) are similar, and both are L-shaped support plate structures; an inclined jacking plate (311) is provided on the upper top of the jacking oil cylinder (309); a number of anti-slip jacking pins (312) are provided on the inclined jacking plate (311).

7. A single-track hoist temporary support for a fully-mechanized heading face in a coal mine according to claim 1, wherein: The base (401) includes a rectangular frame; a pair of longitudinal rods are arranged in the middle of the rectangular frame along the width direction; a window for placing the lifting support (407) is separated by a cross rod on the front side of the gap between the longitudinal rods; a strengthening longitudinal rod is also provided between the two longitudinal rods, the cross rod between the longitudinal rods and the rectangular region surrounded by the rectangular frame; a number of strengthening cross rods are provided between the longitudinal rods and the left and right sides of the rectangular frame; positioning plates are installed at the positions corresponding to the vacuum magnetic starter (403), the motor (406) and the fuel tank (409) on the left and right sides of the base (401); positioning holes are opened in the positioning plates; protective plates are installed at the positions corresponding to the left, middle and right sides of the lower bottom of the base (401).

8. The single-track suspension temporary support for fully-mechanized heading face in coal mine according to claim 1, wherein: The valve group support (402) includes two relatively placed square frames; a pair of positioning strip plates are respectively arranged on the upper and lower sides between the two square frames; strip holes are opened in the positioning strip plates; the control valve group (404) is installed between the upper and lower pairs of positioning strip plates; the remote control receiving box (405) is installed on the upper positioning strip plate; the lifting support (407) includes a clamping plate with a C-shaped cross section; the clamping plate is buckled on the base (401), and a through hole is opened at the upper top of the clamping plate, and a hinge seat is installed at the through hole; the boom is rotatably installed on the lifting support through the hinge seat; a strengthening rib plate is also provided between the outer side of the lifting support (407) and the base (401).

9. A single-track crane temporary support for fully-mechanized heading face in coal mine according to claim 1, characterized in that: The single-sided vertical frame (412) includes an edge support installed on the end side of the base (401); a trapezoidal support is also fixed at the positions of the edge support corresponding to the front and rear end sides of the base (401); a cross bar is arranged between the opposite trapezoidal supports on the two vertical frames (412); the back of the connecting support (411) leans against the cross bar, and a rib plate is also installed between the top of the cross bar and the connecting support (411); lifting lugs (413) are installed at the positions corresponding to the four corners of the base (401) on the upper top of the vertical frame (412), and a number of strengthening rib plates are provided on the vertical frame (412) and between the vertical frame (412) and the base (401).

10. A method for using a single-track crane temporary support in a fully-mechanized heading face of a coal mine according to any one of claims 1 to 9, characterized in that: It includes the following steps: S1. Start the motor and adjust the single-track suspended temporary support to the position where the leg oil cylinders on the support frame (3) and the support beam (1) are suitable for expansion; S2. According to the roadway conditions, select whether to expand the lateral telescopic arm (303) on the support frame (3) outward so that each front extension oil cylinder (12) can achieve the corresponding support effect; S3. Control the action of the rear support leg turning oil cylinder (306) on the support frame (3), thereby controlling the rear support leg oil cylinder (305) to turn to a position perpendicular to the roadway ground. Then control the rear support leg oil cylinder (305) to extend and complete the support; S4. According to the roadway conditions, select to control the lifting frame (2) to act, so that the overall support beam (1) moves up or down to a suitable support position; S5. According to the roadway conditions, adjust the rotation angle of the support beam (1) through the slewing oil cylinder. It is best to make the support surface parallel to the roof of the roadway to facilitate subsequent operations; S6. After the support frame (3) is supported and fixed, and the lifting frame (2) moves to the support position, according to the roadway conditions, select whether to expand the telescopic push rod on the support beam (1) outward so that each front extension oil cylinder (12) can achieve the corresponding support effect; Then control the front support leg turning oil cylinder (15) to drive, and the front support leg oil cylinder (14) turns so that the front support leg oil cylinder (14) is perpendicular to the roadway ground; Then control the front support leg oil cylinder (14) to extend and complete the support; S7. Only after the single-rail temporary support is fully expanded can subsequent operations be carried out. And during the support process, no one is allowed to stand below, and keep a safe distance for operations; S8. After the support operation is completed, the single-rail temporary support retracts to the initial state and moves to the next support working face for support.

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