Rail-mounted hydraulic support hoisting and carrying device and method

Abstract

This invention belongs to the field of downhole hydraulic support transportation technology, specifically relating to a track-type hydraulic support hoisting and handling device and method. The device includes a track flatbed cart. Along the length of the track flatbed cart, a hydraulic support placement mechanism is located in the middle, with a hoisting mechanism and a support mechanism arranged sequentially on either side of the placement mechanism. The support mechanism can open or retract along the width of the track flatbed cart, providing lateral support. The hoisting mechanism can extend or retract along the width of the track flatbed cart, used for loading and unloading hydraulic supports from the side of the track flatbed cart. The hydraulic support placement mechanism includes a hollow placement platform. A lifting guide assembly and an elastic buffer assembly are arranged between the placement platform and the track flatbed cart. A clamping mechanism is arranged within the hollow cavity of the placement platform. This invention utilizes existing tracks for transportation, significantly improving operational efficiency and safety, and effectively reducing manual labor intensity.

Description

Technical Field

[0001] This invention belongs to the field of underground hydraulic support moving technology, specifically relating to a track-mounted hydraulic support hoisting and moving device and method. Background Technology

[0002] In fully mechanized coal mining operations, the efficient and safe transport of unit-type advanced hydraulic supports is a core prerequisite for maintaining the continuity of mining operations and ensuring production efficiency. Traditional transport solutions often use monorail cranes or dedicated unit-type advanced hydraulic support transport vehicles as the core transport equipment. However, these solutions have significant limitations: firstly, the investment costs for equipment purchase and subsequent operation and maintenance are high; secondly, they have strict requirements for the width, height, and other spatial dimensions of underground roadways. Due to objective factors such as the geological conditions and existing roadway layout of some mines, the adaptability of traditional solutions is insufficient and it is difficult to meet actual transport needs. Therefore, it is necessary to develop an efficient, reliable, and adaptable transport mechanism to achieve convenient transport of unit-type advanced hydraulic supports. Summary of the Invention

[0003] This invention aims to address the problem of poor applicability of traditional unit-based advanced hydraulic support transportation methods in underground coal mines.

[0004] The present invention provides the following technical solution: a track-type hydraulic support hoisting and handling device, comprising a track flatbed cart, wherein a hydraulic support placement mechanism is located in the middle of the track flatbed cart along its length, and a hoisting mechanism and a support mechanism are located on both sides of the hydraulic support placement mechanism in sequence; the support mechanism can open or retract along the width direction of the track flatbed cart, and the support mechanism is used to provide lateral support; the hoisting mechanism can extend or retract along the width direction of the track flatbed cart, and is used to load and unload hydraulic supports from the side of the track flatbed cart;

[0005] The hydraulic support placement mechanism includes a hollow placement platform. A lifting guide assembly and an elastic buffer assembly are provided between the placement platform and the rail flatbed vehicle. A clamping mechanism is arranged inside the hollow cavity of the placement platform, and the clamping rod of the clamping mechanism extends out from the clamping limit groove on the top surface of the placement platform.

[0006] Furthermore, the clamping mechanism includes clamping units distributed at linear intervals;

[0007] The clamping unit includes a first clamping frame and a second clamping frame that extend and retract in opposite directions. The first clamping frame is slidably nested in a first stabilizing sleeve, and the second clamping frame is slidably nested in a second stabilizing sleeve. The first and second stabilizing sleeves are fixed in the hollow cavity of the placement stage. Adjustment seats are installed at the ends of both the first and second clamping frames, and the clamping rod is inserted into the adjustment seats.

[0008] A fixed mounting bracket is also fixedly installed on the top of the hollow cavity of the placement platform. A first gear bracket and a second gear bracket are respectively installed on the left and right sides of the fixed mounting bracket. A first guide gear is installed on the first gear bracket, and a second guide gear is installed on the second gear bracket. The first guide gear meshes with the first receiving rack on the first clamping frame. The second guide gear meshes with the second receiving rack on the second clamping frame.

[0009] Furthermore, the clamping mechanism is connected to the locking adjustment mechanism; the locking adjustment mechanism includes a screw rod that runs through both sides of the placement platform, a rotary seat is provided on the placement platform, a nut that can rotate freely is connected to the rotary seat, the screw rod passes through the nut and the rotary seat, and the screw rod and the nut are threadedly engaged; a push-pull rod is connected between the screw rods on both sides, the push-pull rod passes through the clamping unit of the clamping mechanism, the T-shaped guide rail at the top of the push-pull rod slides and engages with the sliding groove on the bottom surface of the fixed top frame, and drive racks are provided on the left and right sides of the push-pull rod, the drive racks on both sides mesh with the first guide gear and the second guide gear respectively.

[0010] Furthermore, the elastic buffer assembly includes X-shaped elastic legs arranged in a rectangular array on the bottom surface of the placement platform. The two upward branches of the elastic legs are fixedly connected to the connecting pad, and the two downward branches of the elastic legs can elastically deform. The bottom ends of the two downward branches of the elastic legs are equipped with pulleys.

[0011] The rail flatbed is equipped with a slide plate, which has straight guide grooves aligned with the pulleys. When the elastic support legs deform, the pulleys slide within the straight guide grooves.

[0012] Furthermore, the lifting guide assembly includes a support frame distributed at the bottom of the placement platform and a support seat distributed on the rail flatbed, with guide posts on the support frame and guide holes on the support seat slidably nested together.

[0013] Furthermore, the lifting mechanism includes a telescopic boom, which comprises a first and second boom section connected by a socket joint. The first and second boom sections are driven to extend and retract by an internal lifting jack. A crossbeam is connected between the second boom sections by a rotating joint, and a lifting ring is connected to the crossbeam. The bottom end of the first boom section is connected to the rail flatcar by two hinged support joints. If either of the two hinged support joints is disconnected, the first boom section can be rotated with the other hinged support joint as a fulcrum. A tilting jack is hinged between the first boom section and the rail flatcar. The tilting jacks in the two telescopic boom sections are in opposite directions. When the first boom section is rotated, the tilting jack on one side is under pressure, and the tilting jack on the other side is under tension.

[0014] Furthermore, the support mechanism includes a first horizontal jack and a second horizontal jack that extend in opposite directions. The cylinders of the first horizontal jack and the second horizontal jack are fixedly installed in a horizontal fixed seat on the rail flatbed. The piston rods of the first horizontal jack and the second horizontal jack extend from the horizontal support hole of the horizontal fixed seat. A vertical fixed seat is installed at the end of the piston rod. A vertical jack is installed in the vertical fixed seat. The cylinder of the vertical jack is fixedly connected to the vertical fixed seat. The piston rod of the vertical jack extends from the vertical support hole of the vertical fixed seat. A support plate is installed at the end of the piston rod.

[0015] Furthermore, a turning lever is provided on the nut.

[0016] Furthermore, the adjusting seat is threaded with a set screw, which is used to clamp the clamping rod in the adjusting seat.

[0017] A method for hoisting and transporting a track-mounted hydraulic support involves assembling a track-mounted hydraulic support hoisting and transporting device onto an existing track in an underground roadway and connecting it to a tractor unit; the following steps are completed using this track-mounted hydraulic support hoisting and transporting device:

[0018] S1: The rail flatbed cart moves unloaded to the side of the hydraulic support to be transported;

[0019] S2: First, open the support mechanism to both sides. After the support mechanism is stable, extend the hoisting mechanism to the hydraulic support and connect the hydraulic support to the hoisting mechanism with a chain.

[0020] S3: The hoisting mechanism lifts the hydraulic support and moves it onto the hydraulic support placement mechanism. The clamping mechanism in the hydraulic support placement mechanism clamps and fixes the hydraulic support through the clamping rod.

[0021] S4: Disconnect the hydraulic support from the hoisting mechanism, and retract the support mechanism;

[0022] S5: The rail flatbed vehicle carries the hydraulic support to the next working position;

[0023] S6: First, open the support mechanism to both sides. After the support mechanism is stable, connect the hydraulic support to the hoisting mechanism through the chain, and the clamping mechanism releases the hydraulic support.

[0024] S7: The hoisting mechanism lifts the hydraulic support, moves it to the roadway floor, and disconnects the hydraulic support from the hoisting mechanism;

[0025] S8: The hoisting mechanism and support mechanism return to their initial state, completing one hydraulic support handling operation.

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] This invention provides a track-mounted hydraulic support hoisting and handling device and method. The hoisting and handling device is based on existing tracks within underground roadways. A track flatbed cart of the hoisting and handling device moves the hydraulic supports along the tracks. The hoisting and handling device integrates hydraulic support loading and unloading functions. The hoisting mechanism completes the loading and unloading of the hydraulic supports, while a support mechanism provides lateral support during loading and unloading to prevent tipping. The hoisting mechanism can load and unload from both sides, regardless of the location of the hydraulic supports. The hydraulic support placement mechanism includes a clamping mechanism and an elastic buffer assembly. The elastic buffer assembly reduces vibration during the operation of the track flatbed cart, and the clamping mechanism prevents the hydraulic supports from moving, increasing stability during handling.

[0028] Compared with traditional handling methods, this invention can utilize existing tracks for transportation, significantly improving operational efficiency and safety, effectively reducing manual labor intensity, and providing a reliable and efficient solution for the handling of underground unit advanced hydraulic supports in coal mines. Attached Figure Description

[0029] Figure 1 A schematic diagram of a track-mounted hydraulic support hoisting and handling device;

[0030] Figure 2 This is a schematic diagram of the hydraulic support placement mechanism;

[0031] Figure 3 This is a schematic diagram of an elastic buffer component;

[0032] Figure 4 This is a schematic diagram showing the cooperation between the clamping mechanism and the locking adjustment mechanism;

[0033] Figure 5 This is a schematic diagram of a push-pull rod;

[0034] Figure 6 This is a schematic diagram of the clamping unit;

[0035] Figure 7 This is a schematic diagram of the fit between the nut and the screw.

[0036] Figure 8 This is a schematic diagram of a flexible support leg;

[0037] Figure 9 A schematic diagram of the support mechanism and the hoisting mechanism;

[0038] Figure 10 A half-sectional view of the supporting mechanism;

[0039] Figure 11 This is a sectional view of a telescopic boom.

[0040] In the diagram: 1-rail flatbed cart; 101-slide plate; 102-linear guide groove;

[0041] 2-Support mechanism; 201-First horizontal jack; 202-Second horizontal jack; 203-Horizontal fixed seat; 204-Vertical fixed seat; 205-Vertical jack; 206-Support plate;

[0042] 3-Hydraulic support placement mechanism; 301-Placement platform; 3011-Clamping limiting groove; 302-Clamping rod; 303-First clamping frame; 3031-First receiving rack; 304-Second clamping frame; 3041-Second receiving rack; 305-First stabilizing sleeve; 306-Second stabilizing sleeve; 307-Adjusting seat; 3071-Set screw; 308-First gear frame; 3081-First... 309-Second gear bracket; 3091-Second guide gear; 310-Screw; 311-Rotating seat; 312-Nut; 3121-Turning lever; 313-Push-pull rod; 3131-T-shaped guide rail; 3132-Drive rack; 314-Elastic support foot; 315-Connecting pad; 316-Pulley; 317-Support bracket; 318-Support seat; 319-Fixed top frame;

[0043] 4-Lifting mechanism; 401-First boom section; 402-Second boom section; 403-Lifting jack; 404-Tilting jack; 405-Crossbeam; 406-Lifting ring; 407-Hinged support joint. Detailed Implementation

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] like Figure 1 As shown: A track-mounted hydraulic support hoisting and handling device includes a track flatbed trolley 1. Along the length of the track flatbed trolley 1, a hydraulic support placement mechanism 3 is located in the middle. On either side of the hydraulic support placement mechanism 3 are a hoisting mechanism 4 and a support mechanism 2, respectively. The support mechanism 2 can open or retract along the width of the track flatbed trolley 1, providing lateral support to prevent the track flatbed trolley 1 from tipping over during the hoisting mechanism 4's loading and unloading of hydraulic supports. The hoisting mechanism 4 can extend or retract along the width of the track flatbed trolley 1, loading and unloading hydraulic supports from the side of the track flatbed trolley 1. The hoisting mechanism 4 transports hydraulic supports located on the tunnel floor to the hydraulic support placement mechanism 3, or transports hydraulic supports on the hydraulic support placement mechanism 3 to the tunnel floor.

[0046] The rail flatcar 1 moves on the existing rails in the underground roadway via the rail wheels at its bottom. The rail flatcar 1 has no driving force of its own and is connected to the traction vehicle.

[0047] Due to mining operations, the floor of coal mine roadways may bulge upwards, causing deformation of the tracks laid on the roadway floor. When the rail flatcar 1 runs to the deformed section of the track, it will shake. In order to reduce the shaking of the rail flatcar 1 and transmit it to the hydraulic support, a clamping mechanism and an elastic buffer assembly are added to the hydraulic support placement mechanism 3. The elastic buffer assembly weakens the vibration transmission, and the clamping mechanism suppresses the movement of the hydraulic support.

[0048] like Figure 2 , Figure 3 As shown: The hydraulic support placement mechanism 3 includes a hollow placement platform 301. A lifting guide assembly and an elastic buffer assembly are provided between the placement platform 301 and the rail flatbed 1. The lifting guide assembly restricts the placement platform 301 to move up and down only under the elastic support force of the elastic buffer assembly, and prevents it from shifting laterally.

[0049] like Figure 8 As shown: The elastic buffer assembly includes X-shaped elastic legs 314 arranged in a rectangular array on the bottom surface of the placement platform 301. The elastic legs 314 are made of spring steel. The two upward branches of the elastic legs 314 are fixedly connected to the connecting pad 315, which is fixedly connected to the placement platform 301. The two downward branches of the elastic legs 314 can elastically deform. The bottom ends of the two downward branches of the elastic legs 314 are equipped with pulleys 316. When the elastic legs 314 are subjected to changes in vertical load, the two downward branches separate or move closer together.

[0050] like Figure 2 , Figure 9 As shown: A sliding plate 101 is laid on the track flat car 1. A straight guide groove 102 aligned with the pulley 316 is opened on the sliding plate 101. When the elastic support leg 314 deforms, the pulley 316 slides in the straight guide groove 102, reducing the resistance when the elastic support leg 314 deforms.

[0051] like Figure 1 As shown: The lifting guide assembly includes a support frame 317 distributed at the bottom of the placement platform 301 and a support seat 318 distributed on the rail flatbed 1. The guide post on the support frame 317 and the guide hole on the support seat 318 are slidably nested and connected.

[0052] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown: A clamping mechanism is arranged in the hollow cavity of the placement platform 301. The clamping rod 302 of the clamping mechanism extends out from the clamping limiting groove 3011 on the top surface of the placement platform 301. The clamping mechanism drives the clamping rod 302 to clamp and fix the hydraulic support.

[0053] The clamping mechanism includes clamping units spaced along a straight line; each clamping unit includes a first clamping frame 303 and a second clamping frame 304 that extend and retract in opposite directions. The first clamping frame 303 is slidably nested in a first stabilizing sleeve 305, and the second clamping frame 304 is slidably nested in a second stabilizing sleeve 306. The first stabilizing sleeve 305 and the second stabilizing sleeve 306 are fixed in the hollow cavity of the placement platform 301. The first stabilizing sleeve 305 guides the first clamping frame 303 to slide linearly, and the second stabilizing sleeve 306 guides the second clamping frame 304 to slide linearly. Adjusting seats 307 are installed at the ends of both the first clamping frame 303 and the second clamping frame 304, and clamping rods 302 are inserted into the adjusting seats 307. When the first clamping frame 303 and the second clamping frame 304 are close together, the hydraulic support is clamped; when the first clamping frame 303 and the second clamping frame 304 are far apart, the hydraulic support is released.

[0054] The adjusting seat 307 is threaded with a set screw 3071, which is used to clamp the clamping rod 302 in the adjusting seat 307. When the set screw 3071 is loosened, the clamping rod 302 can move up and down in the adjusting seat 307 to adjust the height of the clamping rod 302 extending from the placement platform 301. When the set screw 3071 is tightened, the clamping rod 302 is fixed in the adjusting seat 307.

[0055] A fixed mounting bracket 319 is also fixedly installed on the top of the hollow cavity of the placement platform 301. A first gear bracket 308 and a second gear bracket 309 are respectively installed on the left and right sides of the fixed mounting bracket 319. A first guide gear 3081 is installed on the first gear bracket 308, and a second guide gear 3091 is installed on the second gear bracket 309. The first guide gear 3081 meshes with the first receiving rack 3031 on the first clamping frame 303. When the first guide gear 3081 rotates, it pushes the first clamping frame 303 to move through the first receiving rack 3031. The second guide gear 3091 meshes with the second receiving rack 3041 on the second clamping frame 304. When the second guide gear 3091 rotates, it pushes the second clamping frame 304 to move through the second receiving rack 3041.

[0056] The clamping mechanism is connected to the locking adjustment mechanism. The locking adjustment mechanism drives the first guide gear 3081 and the second guide gear 3091 in the clamping unit to rotate, and can limit the rotation of the first guide gear 3081 and the second guide gear 3091 by external force. The locking adjustment mechanism includes a screw 310 that runs through both sides of the placement platform 301. A rotary seat 311 is provided on the placement platform 301. A nut 312 that can rotate freely is connected to the rotary seat 311. The screw 310 passes through the nut 312 and the rotary seat 311, and the screw 310 and the nut 312 are threaded together. A push-pull rod 313 is connected between the screws 310 on both sides. The push-pull rod 313 passes through the clamping unit of the clamping mechanism. The T-shaped guide rail 3131 at the top of the push-pull rod 313 slides and engages with the sliding groove on the bottom surface of the fixed top frame 319. A drive rack 3132 is provided on the left and right sides of the push-pull rod 313. The drive racks 3132 on both sides mesh with the first guide gear 3081 and the second guide gear 3091, respectively. The T-shaped guide rail 3131 on the push-pull rod 313 slides and engages with the groove on the bottom surface of the fixed top frame 319, so that the push-pull rod 313 can only slide in a straight line and cannot rotate. Consequently, the screw 310 fixedly connected to the push-pull rod 313 also cannot rotate. When the nuts 312 on both sides of the placement platform 301 rotate synchronously, under the action of the axial force of the thread, the screws 310 on both sides move in the same direction. When the push-pull rod 313 in the middle of the screw 310 moves, it drives the first guide gear 3081 and the second guide gear 3091 to rotate through the drive rack 3132. After the torque applied to the nut 312 stops, the screw 310 and the push-pull rod 313 stop moving, and the rotation of the first guide gear 3081 and the second guide gear 3091 is blocked.

[0057] like Figure 7 As shown: A turning lever 3121 is provided on the nut 312, which facilitates the application of rotational torque to the nut 312.

[0058] like Figure 9 , Figure 11As shown: The lifting mechanism 4 includes a telescopic boom, which includes a first section 401 and a second section 402 connected by a socket joint. The first section 401 and the second section 402 are driven to extend and retract by an internal lifting jack 403. The lifting jack 403 drives the telescopic boom to extend or retract. A crossbeam 405 is connected to the second section 402 by a rotating joint. A lifting ring 406 is connected to the crossbeam 405. The lifting ring 406 and the hydraulic support are connected by a chain. During the rotation of the telescopic boom, the crossbeam 405 rotates relative to the second section 402, so that the lifting ring 406 on the crossbeam 405 always remains at the same height. The bottom end of the first section of the boom 401 is connected to the rail flatbed 1 through two hinged support joints 407. If either of the two hinged support joints 407 is disconnected, the first section of the boom 401 can be flipped with the other hinged support joint 407 as the fulcrum. A flipping jack 404 is hinged between the first section of the boom 401 and the rail flatbed 1. The flipping jacks 404 in the telescopic booms on both sides are in opposite directions. When the first section of the boom 401 is flipped, the flipping jack 404 on one side is under pressure and the flipping jack 404 on the other side is under tension.

[0059] The two hinged support joints 407 at the bottom of the first section boom 401 can be disconnected by pulling out the support pin. When one hinged support joint 407 is disconnected, the telescopic boom rotates with the other hinged support joint 407 as the fulcrum. The tilting jacks 404 in the telescopic booms on both sides are in opposite directions. Whether the telescopic boom tilts to the left or to the right, the driving force of the telescopic boom remains unchanged, so that the lifting mechanism 4 can load and unload hydraulic supports from both sides, and has strong environmental adaptability.

[0060] like Figure 10 As shown: The support mechanism 2 includes a first horizontal jack 201 and a second horizontal jack 202 that extend in opposite directions. The cylinders of the first horizontal jack 201 and the second horizontal jack 202 are fixedly installed in a horizontal fixed seat 203 on the rail flatcar 1. The piston rods of the first horizontal jack 201 and the second horizontal jack 202 extend from the horizontal support holes of the horizontal fixed seat 203. A vertical fixed seat 204 is installed at the end of the piston rod. A vertical jack 205 is installed in the vertical fixed seat 204. The cylinder of the vertical jack 205 is fixedly connected to the vertical fixed seat 204. The piston rod of the vertical jack 205 extends from the vertical support hole of the vertical fixed seat 204. A support plate 206 is installed at the end of the piston rod. After the first horizontal jack 201 and the second horizontal jack 202 extend, the vertical jack 205 pushes the support plate 206 to step on the tunnel floor, providing lateral support force to the rail flatcar 1.

[0061] Example 2

[0062] A method for hoisting and transporting a track-mounted hydraulic support involves assembling a track-mounted hydraulic support hoisting and transporting device (as described in Example 1) onto an existing track in an underground roadway and connecting it to a tractor unit. The following steps are performed using this track-mounted hydraulic support hoisting and transporting device:

[0063] S1: The rail flatbed cart 1 moves unloaded to the side of the hydraulic support to be transported;

[0064] S2: First, open the support mechanism 2 to both sides. When the support mechanism 2 is opened, the first horizontal jack 201 and the second horizontal jack 202 are fully extended first, and then the vertical jack 205 is extended to the ground. After the support mechanism 2 is stable, the hoisting mechanism 4 extends to the hydraulic support. When the hoisting mechanism 4 extends, the telescopic boom extends first, and then the flip jack 404 pushes the telescopic boom to swing to one side of the hydraulic support. After the crossbeam 405 is above the hydraulic support, connect the hydraulic support and the lifting ring 406 on the crossbeam 405 with a chain.

[0065] S3: The hoisting mechanism 4 lifts the hydraulic support and moves it onto the hydraulic support placement mechanism 3. During the movement, the flip jack 404 first pushes the telescopic boom to rotate, and the hydraulic support moves above the hydraulic support placement mechanism 3. Then the telescopic boom is shortened again, so that the hydraulic support falls onto the hydraulic support placement mechanism 3. The clamping mechanism in the hydraulic support placement mechanism 3 clamps and fixes the hydraulic support through the clamping rod 302.

[0066] S4: Disconnect the hydraulic support from the hoisting mechanism 4, and retract the support mechanism 2. During the retraction of the support mechanism 2, first lift the vertical jack 205, and then retract the first horizontal jack 201 and the second horizontal jack 202.

[0067] S5: The rail flatbed cart 1 carries the hydraulic support to the next working position;

[0068] S6: First, open the support mechanism 2 to both sides. After the support mechanism 2 is stable, connect the hydraulic support to the hoisting mechanism 4 through the chain, and the clamping mechanism releases the hydraulic support.

[0069] S7: The hoisting mechanism 4 lifts the hydraulic support and moves it to the tunnel floor. During the moving process, the telescopic boom first extends to lift the hydraulic support, then the jack 404 is turned over to push the telescopic boom to rotate and place the hydraulic support on the tunnel floor, and the connection between the hydraulic support and the hoisting mechanism 4 is disconnected.

[0070] S8: The hoisting mechanism 4 and the support mechanism 2 return to their initial state, completing one hydraulic support handling operation.

[0071] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method of hoisting and transporting a rail-mounted hydraulic support, characterized in that: The rail-mounted hydraulic support hoisting and handling device is assembled on the existing rail in the underground roadway and connected to the tractor head; the rail-mounted hydraulic support hoisting and handling device includes a rail flatbed car (1), and in the length direction of the rail flatbed car (1), the middle of the rail flatbed car (1) is the hydraulic support placement mechanism (3), and on both sides of the hydraulic support placement mechanism (3) are the hoisting mechanism (4) and the support mechanism (2); the support mechanism (2) can open or retract along the width direction of the rail flatbed car (1), and the support mechanism (2) is used to provide lateral support; the hoisting mechanism (4) can extend or retract along the width direction of the rail flatbed car (1), and is used to load and unload hydraulic supports from the side of the rail flatbed car (1); The hydraulic support placement mechanism (3) includes a hollow placement platform (301). A lifting guide assembly and an elastic buffer assembly are provided between the placement platform (301) and the rail flatbed car (1). A clamping mechanism is arranged in the hollow cavity of the placement platform (301). The clamping rod (302) of the clamping mechanism extends out from the clamping limit groove (3011) on the top surface of the placement platform (301). The elastic buffer assembly includes X-shaped elastic legs (314) arranged in a rectangular array on the bottom surface of the placement platform (301). The two upward branches of the elastic legs (314) are fixedly connected to the connecting pad (315), and the two downward branches of the elastic legs (314) can be elastically deformed. The bottom ends of the two downward branches of the elastic legs (314) are equipped with pulleys (316). The hoisting mechanism (4) includes a telescopic boom, which comprises a first support boom (401) and a second support boom (402) connected by a socket joint. The first support boom (401) and the second support boom (402) are connected by an internal lifting jack (403) for telescopic extension and retraction. A crossbeam (405) is connected between the second support booms (402) by a rotating joint. A lifting ring (406) is connected to the crossbeam (405). The bottom end of the first support boom (401) is connected to the rail flatbed vehicle (1) by two hinged supports. The support joint (407) is connected. If either of the two hinged support joints (407) is disconnected, the first section of the support arm (401) can be flipped with the other hinged support joint (407) as the fulcrum. The first section of the support arm (401) is hinged to the rail flat car (1) with a flipping jack (404). The flipping jacks (404) in the telescopic booms on both sides are in opposite directions. When the first section of the support arm (401) is flipped, the flipping jack (404) on one side is compressed and the flipping jack (404) on the other side is stretched. The following steps are completed using this rail-mounted hydraulic support hoisting and handling device: S1: The rail flatbed vehicle (1) moves unloaded to the side of the hydraulic support to be transported; S2: First, open the support mechanism (2) to both sides. After the support mechanism (2) is stable, the hoisting mechanism (4) extends to the hydraulic support and connects the hydraulic support to the hoisting mechanism (4) through a chain. S3: The hoisting mechanism (4) lifts the hydraulic support and moves it to the hydraulic support placement mechanism (3). The clamping mechanism in the hydraulic support placement mechanism (3) clamps and fixes the hydraulic support through the clamping rod (302). S4: Disconnect the hydraulic support from the hoisting mechanism (4), and retract the support mechanism (2); S5: The rail flatbed vehicle (1) carries the hydraulic support to the next working position; S6: First, open the support mechanism (2) to both sides. After the support mechanism (2) is stable, connect the hydraulic support to the hoisting mechanism (4) through the chain. The clamping mechanism releases the hydraulic support. S7: The hoisting mechanism (4) lifts the hydraulic support and moves it to the roadway floor, disconnecting the hydraulic support from the hoisting mechanism (4); S8: The hoisting mechanism (4) and the support mechanism (2) return to their initial state, completing one hydraulic support handling operation.

2. The method of claim 1, wherein: The clamping mechanism includes clamping units spaced apart along a straight line; The clamping unit includes a first clamping frame (303) and a second clamping frame (304) that extend and retract in opposite directions. The first clamping frame (303) is slidably nested in a first stabilizing sleeve (305), and the second clamping frame (304) is slidably nested in a second stabilizing sleeve (306). The first stabilizing sleeve (305) and the second stabilizing sleeve (306) are fixed in the hollow cavity of the placement platform (301). Adjusting seats (307) are installed at the ends of the first clamping frame (303) and the second clamping frame (304), and the clamping rod (302) is inserted into the adjusting seat (307). A fixed mounting bracket (319) is also fixedly installed on the top of the hollow cavity of the placement platform (301). A first gear bracket (308) and a second gear bracket (309) are respectively installed on the left and right sides of the fixed mounting bracket (319). A first guide gear (3081) is installed on the first gear bracket (308), and a second guide gear (3091) is installed on the second gear bracket (309). The first guide gear (3081) meshes with the first receiving rack (3031) on the first clamping frame (303); the second guide gear (3091) meshes with the second receiving rack (3041) on the second clamping frame (304).

3. The method of claim 2, wherein: The clamping mechanism is connected to the locking adjustment mechanism; the locking adjustment mechanism includes screws (310) that pass through and connect to both sides of the placement platform (301), a rotary seat (311) is provided on the placement platform (301), a nut (312) that can rotate freely is connected to the rotary seat (311), the screws (310) pass through the nut (312) and the rotary seat (311), and the screws (310) and the nut (312) are threaded together; the screws (310) on both sides are connected to the locking adjustment mechanism. A push-pull rod (313) is connected between 10. The push-pull rod (313) passes through the clamping unit of the clamping mechanism. The T-shaped guide rail (3131) at the top of the push-pull rod (313) slides and engages with the groove on the bottom surface of the fixed top frame (319). Drive racks (3132) are provided on the left and right sides of the push-pull rod (313). The drive racks (3132) on both sides mesh with the first guide gear (3081) and the second guide gear (3091) respectively.

4. A method for hoisting and transporting a track-mounted hydraulic support according to any one of claims 1 to 3, characterized in that: The track flatbed (1) is covered with a slide plate (101), and the slide plate (101) has a straight guide groove (102) aligned with the pulley (316). When the elastic support (314) deforms, the pulley (316) slides in the straight guide groove (102).

5. The method for hoisting and transporting a track-mounted hydraulic support according to claim 4, characterized in that: The lifting guide assembly includes a support frame (317) distributed at the bottom of the placement platform (301) and a support seat (318) distributed on the rail flatbed (1). The guide post on the support frame (317) and the guide hole on the support seat (318) are slidably nested together.

6. The method for hoisting and transporting a track-mounted hydraulic support according to claim 1, characterized in that: The support mechanism (2) includes a first horizontal jack (201) and a second horizontal jack (202) that extend in opposite directions. The cylinders of the first horizontal jack (201) and the second horizontal jack (202) are fixedly installed in a horizontal fixed seat (203) on the rail flatbed (1). The piston rods of the first horizontal jack (201) and the second horizontal jack (202) extend out from the horizontal support hole of the horizontal fixed seat (203). A vertical fixed seat (204) is installed at the end of the piston rod. A vertical jack (205) is installed in the vertical fixed seat (204). The cylinder of the vertical jack (205) is fixedly connected to the vertical fixed seat (204). The piston rod of the vertical jack (205) extends out from the vertical support hole of the vertical fixed seat (204). A support plate (206) is installed at the end of the piston rod.

7. The method for hoisting and transporting a track-mounted hydraulic support according to claim 3, characterized in that: The nut (312) is provided with a screwing lever (3121).

8. The method for hoisting and transporting a track-mounted hydraulic support according to claim 2, characterized in that: The adjusting seat (307) is threaded with a set screw (3071), which is used to clamp the clamping rod (302) in the adjusting seat (307).

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