A mine pneumatic monorail hoist vehicle

Abstract

The application discloses a mine pneumatic monorail crane vehicle and relates to the technical field of monorail crane vehicles. The vehicle comprises a hoisting beam, two load-bearing rods are symmetrically and slidingly installed in the hoisting beam through a sliding hole, load vehicles are fixedly connected to the opposite outer ends of the two load-bearing rods, screw rods one are threadedly connected to the protrusions in the bottom of the opposite inner ends of the two load-bearing rods, the two screw rods one are rotatably installed in the symmetrically opened holes in the bottom of the screw rods one through bearings, and pneumatic motors are drivingly connected to the opposite ends of the two screw rods one through bevel gears. The cooperation of the pneumatic motor, the screw rod one and the load-bearing rod can quickly adjust the distance between the load-bearing structures, adapt to the carrying of different specifications of materials, and realize the self-adaptive storage of pipelines through the linkage structure of the rack and the clamping column, so that the pipelines are prevented from being damaged due to pulling. The multi-stage buffer structure composed of the sliding column, the adjusting block and the pressing ring can adaptively adjust the buffer resistance, effectively weaken the operation shaking and improve the stability of heavy-load transfer.

Description

Technical Field

[0001] This invention relates to the field of monorail crane technology, specifically a mining pneumatic monorail crane. Background Technology

[0002] In underground coal mining and material transfer operations, pneumatic monorail cranes, with their advantages of being explosion-proof and adaptable to the confined spaces of underground mines, have become the core equipment for short-distance material and equipment handling in mines, and are widely used in underground roadway material conveying, equipment hoisting and transfer and other working conditions.

[0003] However, traditional mining pneumatic monorail cranes still have many technical shortcomings in practical applications, making them difficult to adapt to the complex and ever-changing needs of underground material handling operations. Firstly, the lifting spacing and load-bearing structure of traditional monorail cranes are mostly fixed, making it inconvenient to flexibly and quickly adjust to the dimensions of different sizes of transported items, such as extra-long equipment or multiple material frames. This results in extremely poor adaptability, limiting them to handling only a single type of material and significantly reducing the efficiency of underground material transfer. Secondly, the existing equipment's pipelines and wiring are mostly exposed, lacking a dedicated adaptive storage and adjustment structure. During equipment spacing adjustments and long-distance material transport, the loose pipelines are prone to pulling, tangling, and damage from impacts, causing equipment malfunctions and downtime, posing safety hazards in underground operations, and affecting equipment lifespan and operational continuity. Meanwhile, the road surface in the underground tunnel is bumpy and the transfer process is prone to inertial swaying. Traditional monorail cranes are only equipped with simple buffer structures, and the buffer resistance is not easy to adaptively adjust according to the load specifications. When heavy materials are transported and large swaying occurs, the buffering and shock absorption effect is poor, and it is very easy for the hoisted materials to deviate and the equipment structure to collide and wear. The stability and safety are difficult to meet the operation requirements of heavy load and complex working conditions.

[0004] To address the aforementioned issues, innovative designs are urgently needed based on existing approaches. Summary of the Invention

[0005] The purpose of this invention is to provide a mining pneumatic monorail crane to solve the problems mentioned in the background. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mining pneumatic monorail crane, comprising a lifting beam, wherein two bearing rods are symmetrically slidably installed in a transverse sliding hole through the lifting beam, and a bearing vehicle is fixedly connected to the outer ends of the two bearing rods; a screw rod is threadedly connected to the bottom protrusion of the inner ends of the two bearing rods; the two screw rods are rotatably installed in symmetrical openings at the bottom of the screw rods via bearings; a pneumatic motor is connected to one end of each screw rod via a bevel gear transmission; the pneumatic motor is fixed at the center rear of the lifting beam via a connector; a hydraulic hoist is connected to the bottom of the two bearing vehicles via a hinge; a longitudinal beam is fixed to the output end of the hydraulic hoist; a crossbeam is connected to the front and rear sides of the bottom of the two longitudinal beams via chains; a bracket is slidably sleeved on the outer side of the two horizontal crossbeams; a storage box is fixed to the front and rear sides of the lifting beam; and mounting brackets are fixed to the left and right sides of the two storage boxes.

[0007] An adjustment component is disposed between the two support rods and the storage box. The adjustment component is used to adjust the status of the remaining pipelines and lines inside the storage box.

[0008] A buffer assembly is disposed between the adjustment assembly and the mounting bracket, and the buffer assembly is used for buffering the longitudinal beam.

[0009] Optionally, the other side of the carrier vehicle on the left is connected to a pneumatic drive unit via a hinged push rod, and the other side of the carrier vehicle on the right is connected to a tail braking mechanism via a hinged push rod.

[0010] Optionally, the adjustment assembly includes two sliding plates and multiple locking pins disposed within each storage box. Each of the two sliding plates has a screw rod threaded into a vertical circular hole on its outer side. The screw rod is rotatably mounted at a corresponding position within the rear cavity of the storage box via bearings. Each of the two sliding plates has a sliding rod slidably connected into a vertical circular hole on its inner side. The sliding rod is fixed at a corresponding position within the rear cavity of the storage box. Each sliding plate is slidably mounted within a strip-shaped opening on the front and rear cavity partition of the storage box via two symmetrical protrusions on one side. Each of the two symmetrical protrusions on one side of each sliding plate can be fixed with locking pins. Racks are symmetrically slidably mounted in the grooves below the rear of the two storage boxes. Gears are fixed to the outer side of the lower section of the shaft of each of the two screw rods. Each gear meshes with a rack at a corresponding position. The two horizontal racks at the front and rear are respectively connected to the bottom protrusions of the corresponding support rods.

[0011] Optionally, the adjustment assembly also includes three locking posts installed below the front cavity of each storage box. The three locking posts are staggered and installed below the adjacent positions of the four upper locking posts. Multiple curved slots are arranged on the locking posts for fixing spare pipes and lines. Spare pipes and lines are alternately locked around the upper and lower locking posts.

[0012] Optionally, the buffer assembly includes a sliding column slidably installed in a vertical circular opening of each mounting bracket. A connector is fixedly connected to the bottom of the sliding column. A limit ring is fixed to the outer side of the middle section of the sliding column. The limit ring is fixedly positioned above the protruding horizontal plate below the mounting bracket. A pressure ring is slidably installed on the outer side of the upper section of the sliding column. The pressure ring is installed below the upper horizontal plate of the mounting bracket. The pressure rings are connected to each other by a spring. An adjusting block is abutted to the top of the pressure ring. The adjusting block is slidably installed in a groove at the bottom of the upper horizontal plate of the mounting bracket by a spring limit. A top block is vertically slidably installed in a rectangular opening of the upper horizontal plate of the mounting bracket. The top block is connected to a sliding plate at a corresponding position by a protruding horizontal bar on one side.

[0013] Optionally, the bottom of the adjusting block and the contact end with the pressure ring are designed as a bevel structure, and a notch is provided at one end of the adjusting block for sliding against the outer side of the sliding column.

[0014] Optionally, one side of the top block is designed as a sloping structure, and the sloping end of the top block abuts against the non-notch end of the adjusting block.

[0015] Optionally, the shape of the notch below the joint corresponds to the structure above the longitudinal beam, and the longitudinal beam overlaps with the joint at the maximum lifting height.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention boasts excellent material size adaptability and pipeline protection, significantly enhancing operational practicality and safety. By using a pneumatic motor to drive a bevel gear that rotates a screw, the lateral sliding adjustment of the load-bearing rod and load-bearing vehicle can be achieved. Combined with a hydraulic hoist, this allows for relative displacement of the longitudinal beams, transverse beams, and brackets, flexibly adapting to material handling operations of varying lengths and quantities. Simultaneously, the load-bearing rod adjustment process drives the rack, meshing gears, and screw in a coordinated manner, displacing the sliding plate and locking posts within the storage box. This automatically releases and orderly stores any remaining pipeline and wiring, adapting to the pipeline status according to material length, effectively avoiding pipeline tripping and damage during material transport, and ensuring long-term stable operation of the equipment.

[0018] This invention, by equipping a multi-stage linkage buffer structure, effectively improves the stability and anti-sway capability of heavy-duty handling, adapting to the operational needs of different load conditions. When material transport causes significant back-and-forth swaying or tilting due to crossbeams contacting longitudinal beams, the connector and sliding column can slide along the openings in the mounting bracket. Basic buffering is achieved by the limiting ring on the sliding column compressing the spring, quickly reducing the amplitude and impact of equipment swaying. Simultaneously, during material length adjustment operations, the top block can move downwards synchronously with the sliding plate. Resistance adjustment is achieved by the inclined surface pushing the adjusting block and the pressure ring compressing the corresponding spring, precisely adapting to the buffering requirements of heavy-duty material handling. This dual buffer structure adapts to different operating conditions, significantly reducing structural wear and material displacement risks caused by equipment swaying, improving operational safety and equipment lifespan. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0021] Figure 3 This is a top view schematic diagram of the lifting beam, load-bearing vehicle, longitudinal beam, cross beam, bracket, and storage box of the present invention;

[0022] Figure 4 This is a schematic diagram showing the disassembled structure of the lifting beam, bracket, bearing rod, pneumatic motor, and screw of the present invention.

[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This is a schematic diagram of the internal structure of one side of the storage box of the present invention;

[0025] Figure 7 This is a schematic diagram of the internal disassembled structure of the storage box of the present invention on the other side;

[0026] Figure 8 This is a schematic diagram of the adjustment component structure of the present invention;

[0027] Figure 9 This is a cross-sectional view of the mounting frame and a schematic diagram of the buffer assembly structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the split structure of the buffer component of the present invention.

[0029] In the diagram: 1. Lifting beam; 2. Carrier vehicle; 3. Articulated push rod; 4. Pneumatic drive unit; 5. Tail braking mechanism; 6. Screw 1; 7. Pneumatic motor; 8. Carrier rod; 9. Hydraulic crane; 10. Longitudinal beam; 11. Crossbeam; 12. Bracket; 13. Storage box; 14. Adjustment assembly; 141. Slide plate; 142. Screw 2; 143. Slide rod; 144. Locking post; 145. Gear; 146. Rack; 15. Mounting bracket; 16. Buffer assembly; 161. Slide column; 162. Connecting joint; 163. Limiting ring; 164. Pressure ring; 165. Adjusting block; 166. Top block. Detailed Implementation

[0030] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0031] Example 1

[0032] Please see Figures 1 to 10 The present invention provides a technical solution: a mining pneumatic monorail crane, including a lifting beam 1, two bearing rods 8 are symmetrically slidably installed in the sliding hole through the lifting beam 1, and a bearing vehicle 2 is fixedly connected to the outer ends of the two bearing rods 8 respectively. The other side of the left bearing vehicle 2 is connected to a pneumatic drive host 4 through a hinged push rod 3, and the other side of the right bearing vehicle 2 is connected to a tail braking mechanism 5 through a hinged push rod 3.

[0033] Two bearing rods 8 are threadedly connected to the inner bottom protrusions of their respective inner ends, and both screw rods 6 are rotatably installed in symmetrical openings at the bottom of the screw rods 6 via bearings. Both screw rods 6 are connected to a pneumatic motor 7 via bevel gear transmission at their respective ends. The pneumatic motor 7 is fixed at the center of the rear of the lifting beam 1 via a connector. The bottom of the two bearing vehicles 2 is connected to a hydraulic crane 9 via a hinge. A longitudinal beam 10 is fixed to the output end of the hydraulic crane 9. The front and rear sides of the bottom of the two longitudinal beams 10 are connected to a crossbeam 11 via chains. The outer sides of the two horizontal crossbeams 11 are limited and slidably connected to a bracket 12. Storage boxes 13 are fixed to the front and rear sides of the lifting beam 1. Mounting brackets 15 are fixed to the left and right sides of the two storage boxes 13. An adjustment component 14 is set between the two bearing rods 8 and the storage boxes 13.

[0034] Adjustment assembly 14 includes two sliding plates 141 and multiple locking posts 144 disposed within each storage box 13. Each of the two sliding plates 141 has a screw rod 142 threaded into a vertical circular hole on its outer side. The screw rod 142 is rotatably mounted in a corresponding position within the rear cavity of the storage box 13 via bearings. Each of the two sliding plates 141 has a sliding rod 143 slidably connected into a vertical circular hole on its inner side. The sliding rod 143 is fixed in a corresponding position within the rear cavity of the storage box 13. Each sliding plate 141 is slidably mounted in a strip-shaped opening on the front and rear cavity partition of the storage box 13 via two symmetrical protrusions on one side. Each sliding plate 141 has two symmetrical protrusions on one side, each of which can be fixed with a locking post 144. Adjustment assembly 14 also includes three locking posts 144 installed below the front cavity of each storage box 13. The three locking posts 144 are staggered... The four upper clamping posts 144 are installed below each other in the middle position. Multiple curved grooves are arranged on the clamping posts 144 for fixing the excess pipes and lines. The upper and lower clamping posts 144 alternately lock the excess pipes and lines. The racks 146 are symmetrically slidably installed in the grooves below the rear side of the two storage boxes 13. Gears 145 are fixed on the outer side of the lower section of the shaft of the two screws 142. Each gear 145 meshes with the rack 146 at the corresponding position. The two horizontal racks 146 at the front and rear are respectively connected to the bottom protrusion of the bearing rod 8 at the corresponding position. The adjustment component 14 is used to adjust the state of the excess pipes and lines in the storage box 13. The buffer component 16 is set between the adjustment component 14 and the mounting bracket 15. The buffer component 16 is used for buffering the longitudinal beam 10.

[0035] When the handling equipment is long or there are many material boxes, the operator needs to turn on the pneumatic motor 7 according to the length of the object to be handled. The pneumatic motor 7 rotates synchronously through the bevel gear, so that the bearing rod 8 slides relative to each other in the transverse through-hole of the lifting beam 1. This causes the bearing car 2 at the corresponding position to slide relative to each other on the guide rail to adjust its position. At the same time, the two hydraulic hoists 9 pull the longitudinal beam 10 and the transverse beam 11 at the left and right positions respectively to move relative to each other. This causes the two transverse beams 11 to slide relative to each other in the bracket 12 to adjust their corresponding positions, thereby completing the adaptation adjustment of the length of the object to be handled.

[0036] As the two support rods 8 slide relative to each other, the movement of the support rods 8 synchronously drives the two horizontal racks 146 at the corresponding positions to move relative to each other and adjust their corresponding positions. The movement of the racks 146 drives the meshing gears 145 and the screws 142 to rotate in the storage box 13, and causes the two screws 142 in a single storage box 13 to drive the corresponding slide plate 141 and the two locking pins 144 on the slide plate 141 to move downward. This completes the release of excess pipes and lines that are alternately locked between the upper and lower locking pins 144. This allows the excess pipes and lines of the lifting beam 1 to be adjusted synchronously according to the length of the transported object. At the same time, the orderly arrangement of the stored excess pipes and lines avoids tripping and damage during transportation.

[0037] Example 2

[0038] Based on Example 1, please refer to Figures 1 to 10 The present invention provides a technical solution: a buffer assembly 16 is disposed between an adjustment assembly 14 and a mounting frame 15. The buffer assembly 16 includes a sliding column 161 slidably installed in a vertical circular opening in each mounting frame 15. A connector 162 is fixedly connected to the bottom of the sliding column 161. The shape of the notch below the connector 162 corresponds to the upper structure of the longitudinal beam 10. The longitudinal beam 10 is aligned with the connector 162 at the maximum lifting height. A limit ring 163 is fixedly fixed on the outer side of the middle section of the sliding column 161. The limit ring 163 is fixedly located above the protruding horizontal plate below the mounting frame 15. A pressure ring 164 is slidably installed on the outer side of the upper section of the sliding column 161. The pressure ring 164 is installed below the upper horizontal plate of the mounting frame 15. The pressure rings 164 are connected by springs. An adjustment block 165 is abutted to the top of the pressure ring 164. The adjustment block 165 is slidably installed in the groove at the bottom of the upper horizontal plate of the mounting frame 15 by the spring limit.

[0039] The bottom of the adjusting block 165 and the contact end with the pressure ring 164 are designed with a bevel structure. One end of the adjusting block 165 has a notch. The notch at one end of the adjusting block 165 is used to slide against the outside of the sliding column 161. A top block 166 is vertically slidably installed in the rectangular opening of the horizontal plate above the mounting bracket 15. One side of the top block 166 is designed with a bevel structure. The bevel end of the top block 166 abuts against the non-notch end of the adjusting block 165. The top block 166 is connected to the corresponding sliding plate 141 through a protruding horizontal bar on one side. The buffer assembly 16 is used for buffering the longitudinal beam 10.

[0040] During the process of adjusting the remaining pipeline and line status according to the length of the transported object, the two downward sliding plates 141 in each storage box 13 drive the top block 166 to move down synchronously and adjust accordingly. When the top block 166 moves down, it slides by pressing the spring in the groove at the bottom of the horizontal plate above the mounting bracket 15 above the corresponding position through the inclined surface of the adjusting block 165. It also slides down to the corresponding position by pressing the spring in the outside of the sliding column 161 through the inclined surface of the bottom of the adjusting block 165 against the pressure ring 164. This adjusts the spring between the adjusting block 165 and the pressure ring 164 to the corresponding resistance, thereby adapting to the buffer when the transported object is swaying due to a large load.

[0041] When the equipment or materials are transported, if there is a large amount of back-and-forth shaking and one side of the crossbeam 11 comes into contact with the longitudinal beam 10, the longitudinal beam 10 tilts and drives the two connecting joints 162 and the sliding column 161 on one side to slide upward in the vertical circular opening of the mounting bracket 15 at the corresponding position. At the same time, the limiting ring 163 in the middle section of the sliding column 161 squeezes the spring to buffer and reduce the impact force and shaking amplitude during the shaking.

[0042] Working principle: When using this pneumatic monorail crane, the operator first connects the frame of the equipment or material to be transported to the bracket 12 through the fastener. Then, the hydraulic mechanism in the pneumatic drive host 4 is used to start the hydraulic hoist 9. The output chains of the two hydraulic hoists 9 pull the longitudinal beam 10 and the cross beam 11 to rise, and simultaneously drive the bracket 12 and the fixed frame inside the bracket 12 to rise. When the two longitudinal beams 10 are fully aligned and in contact with the corresponding top block 166, the lifting operation of the material is completed. Then, the braking mechanism and the tail brake mechanism 5 in the pneumatic drive host 4 are released, and the drive mechanism in the pneumatic drive host 4 is opened simultaneously. With the connection of the two hinged push rods 3, the carrier 2, the carrier rod 8, the longitudinal beam 10 and the tail brake mechanism 5 are pulled to move on the track. Simultaneously, the hydraulic hoist 9 drives the longitudinal beam 10, the cross beam 11 and the bracket 12 to move, and completes the transportation of the equipment or material to be transported.

[0043] Based on the above, when the handling equipment is long or there are many material boxes, the operator needs to turn on the pneumatic motor 7 according to the length of the object to be handled, and drive the two screws 6 to rotate synchronously through the bevel gear, so that the bearing rod 8 slides relative to each other in the transverse through-hole of the lifting beam 1, and drives the corresponding bearing car 2 to slide relative to each other on the guide rail to adjust the corresponding position. At the same time, the two hydraulic hoists 9 pull the longitudinal beam 10 and the cross beam 11 in the left and right positions respectively to move relative to each other, so that the two cross beams 11 slide relative to each other in the bracket 12 to adjust the corresponding position, thereby completing the adaptation adjustment of the length of the object to be handled.

[0044] During the relative sliding process of the two bearing rods 8, when the bearing rods 8 move, they simultaneously drive the two horizontal racks 146 at the corresponding positions to move relative to each other and adjust their corresponding positions. The movement of the racks 146 drives the meshing gears 145 and the screw 142 to rotate in the storage box 13, and causes the two screws 142 in a single storage box 13 to drive the corresponding slide plate 141 and the two locking pins 144 on the slide plate 141 to move downward. This completes the release of excess pipes and lines that are alternately locked between the upper and lower locking pins 144, so that the excess pipes and lines of the lifting beam 1 can be adjusted synchronously according to the length of the transported object. At the same time, the orderly arrangement of the stored excess pipes and lines avoids tripping and damage during transportation.

[0045] Based on the above, when the equipment or materials are transported, a large amount of back-and-forth shaking occurs and one side of the crossbeam 11 touches the longitudinal beam 10. When the longitudinal beam 10 tilts, it drives the two butt joints 162 and the sliding column 161 on one side to slide upward in the vertical circular opening of the mounting bracket 15 at the corresponding position. At the same time, the limiting ring 163 in the middle section of the sliding column 161 squeezes the spring to buffer and reduce the impact force and shaking amplitude during the shaking.

[0046] Based on the above, when adjusting the remaining pipeline and line status according to the length of the transported object, the two downward-moving slide plates 141 in each storage box 13 drive the top block 166 to move down synchronously and adjust accordingly. When the top block 166 moves down, it slides by pressing the spring in the groove at the bottom of the horizontal plate above the mounting bracket 15 above the corresponding position through the inclined surface of the adjusting block 165, and by pressing the spring downward on the outside of the sliding column 161 through the inclined surface of the bottom of the adjusting block 165 against the pressure ring 164, so that the spring between the adjusting block 165 and the pressure ring 164 is adjusted to the corresponding resistance, thereby adapting to the buffer when the transported object with a large load shakes.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A mining pneumatic monorail crane, comprising a lifting beam (1), characterized in that: Two bearing rods (8) are symmetrically slidably installed in the transverse sliding hole of the lifting beam (1). The outer ends of the two bearing rods (8) are fixedly connected to the bearing vehicle (2). The bottom protrusions of the inner ends of the two bearing rods (8) are threadedly connected to the screw rods (6). The two screw rods (6) are rotatably installed in the symmetrical openings at the bottom of the screw rods (6) through bearings. The opposite ends of the two screw rods (6) are connected to the pneumatic motors (7) through bevel gear transmission. The pneumatic motors (7) are fixed to the lifting beam (1) through the connecting piece. At the rear center position, the bottom of the two carrier vehicles (2) are connected to hydraulic cranes (9) by hinges. The output end of the hydraulic cranes (9) is fixed with a longitudinal beam (10). The bottom front and rear sides of the two longitudinal beams (10) are connected to crossbeams (11) by chains. The outer sides of the two horizontal crossbeams (11) are limited and slidably connected with brackets (12). The front and rear sides of the lifting beam (1) are fixed with storage boxes (13). The left and right sides of the two storage boxes (13) are fixed with mounting brackets (15). Adjustment component (14), which is disposed between the two support rods (8) and the storage box (13), is used to adjust the status of the remaining pipelines and lines in the storage box (13); A buffer assembly (16) is disposed between the adjustment assembly (14) and the mounting bracket (15), and the buffer assembly (16) is used for buffering the longitudinal beam (10).

2. The mining pneumatic monorail crane according to claim 1, characterized in that: The other side of the carrier vehicle (2) on the left is connected to a pneumatic drive host (4) via a hinged push rod (3), and the other side of the carrier vehicle (2) on the right is connected to a tail brake mechanism (5) via a hinged push rod (3).

3. A mining pneumatic monorail crane according to claim 1, characterized in that: The adjustment assembly (14) includes two sliding plates (141) and multiple locking pins (144) disposed within each storage box (13). Each of the two sliding plates (141) has a screw rod (142) threaded into a vertical circular hole on its outer side. The screw rod (142) is rotatably mounted in a corresponding position within the rear cavity of the storage box (13) via a bearing. Each of the two sliding plates (141) has a sliding rod (143) slidably connected into a vertical circular hole on its inner side. The sliding rod (143) is fixed in a corresponding position within the rear cavity of the storage box (13). Each sliding plate (141) is connected via a... Two symmetrical protrusions are slidably mounted in the strip-shaped openings on the front and rear cavity partitions of the storage box (13). Each of the two symmetrical protrusions on one side of each slide plate (141) can be fixed with a locking post (144). Racks (146) are symmetrically slidably mounted in the grooves below the rear side of the two storage boxes (13). Gears (145) are fixed on the outer side of the lower shaft of the two screws (142). Each gear (145) meshes with the rack (146) at the corresponding position. The two horizontal racks (146) at the front and rear are respectively connected to the bottom protrusions of the bearing rod (8) at the corresponding positions.

4. A mining pneumatic monorail crane according to claim 3, characterized in that: The adjustment assembly (14) also includes three locking posts (144) installed below the front cavity of each storage box (13). The three locking posts (144) are staggered and installed below the adjacent positions of the four upper locking posts (144). Multiple curved slots are arranged on the locking posts (144). The multiple curved slots on the locking posts (144) are used for fixing the spare pipes and lines. The spare pipes and lines are alternately locked around the upper and lower locking posts (144).

5. A mining pneumatic monorail crane according to claim 3, characterized in that: The buffer assembly (16) includes a sliding column (161) slidably installed in a vertical circular opening in each mounting bracket (15). A connector (162) is fixedly connected to the bottom of the sliding column (161). A limit ring (163) is fixedly fixed on the outer side of the middle section of the sliding column (161). The fixed position of the limit ring (163) is located above the protruding horizontal plate below the mounting bracket (15). A pressure ring (164) is slidably installed on the outer side of the upper section of the sliding column (161). The installation position of the pressure ring (164) is located on the mounting bracket. (15) Below the upper horizontal plate, the pressure ring (164) is connected to the pressure ring (164) by a spring. The top of the pressure ring (164) is connected to an adjusting block (165). The adjusting block (165) is slidably installed in the groove at the bottom of the upper horizontal plate of the mounting bracket (15) by a spring limit. A top block (166) is vertically slidably installed in the rectangular opening of the upper horizontal plate of the mounting bracket (15). The top block (166) is connected to the corresponding sliding plate (141) by a protruding horizontal bar on one side.

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