Shovel lifting structure of hydraulic support transport vehicle in narrow coal mine tunnels

Abstract

This invention relates to the field of coal mine operation technology, specifically to a shovel-loading and lifting structure for a hydraulic support transport vehicle in narrow coal mine tunnels. It includes a base with an internal power mechanism, and a movably positioned positioning frame with a concave structure on the top of the base. A cylinder is positioned at the center of the top surface of the base, and the push rod at the top output end of the cylinder is rotatably connected to the bottom of the positioning frame. Both the front and rear frames of the positioning frame have curved inner walls with limiting grooves at their top ends. A dynamic material-grabbing mechanism is located on the top of the positioning frame. This invention enables a smooth transition of the hydraulic support from an upright to a horizontal position. Combined with the dual limiting mechanism of the dynamic clamping mechanism, it further ensures the stability of the hydraulic support loading, unloading, and transportation process, and is adaptable to the handling needs of different support models, effectively improving the efficiency of hydraulic support loading and unloading.

Description

Technical Field

[0001] This invention relates to the field of coal mine operation technology, specifically to the shovel lifting structure of a hydraulic support transport vehicle for narrow coal mine tunnels. Background Technology

[0002] In coal mining, hydraulic supports are the core support equipment for fully mechanized mining faces. They are heavy and large in size, and need to be quickly disassembled and transported to new working faces for reuse after the mining is completed. As coal mining extends to deeper and more complex geological conditions, the spatial constraints of underground coal mine roadways are becoming increasingly prominent.

[0003] In the existing technology, when using traditional lifting equipment such as winches and gantry cranes to move hydraulic supports in underground coal mine roadways, although they can meet the basic lifting requirements, they have poor spatial adaptability, high safety risks, and are in significant conflict with the characteristics of narrow roadways and complex environment.

[0004] According to CN112124176A, a coal mine support transport vehicle uses the combined action of a lifting arm and a telescopic arm to raise and lower the clamped support. Although the height of the shovel plate is adjusted by adding a hydraulic cylinder, it still lacks the ability to adjust the posture of the support and adapt to space. Moreover, its clamping mechanism is statically set, which makes it difficult to cope with complex working conditions and affects the transport and lifting efficiency of the hydraulic support. In view of these technical defects, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to achieve a smooth transition of the hydraulic support from an upright to a horizontal position by setting a dynamic material handling mechanism, so as to solve the problem of transportation collision caused by the height limitation of the roof plate in narrow aisles by traditional handling vehicles. In addition, the dual limit mechanism of the dynamic clamping mechanism further ensures the stability of the hydraulic support loading, unloading and transportation process, and adapts to the handling needs of different types of supports, effectively improving the loading and transportation efficiency of hydraulic supports.

[0006] The objective of this invention can be achieved through the following technical solution: a shovel lifting structure for a hydraulic support transport vehicle in a narrow coal mine tunnel, including a base with an internal power mechanism, and a positioning frame with a concave structure movably mounted on the top of the base. A cylinder is located at the center of the top surface of the base, and the push rod at the top output end of the cylinder is rotatably connected to the bottom of the positioning frame. The top of the front and rear frames of the positioning frame are provided with limiting grooves with curved inner walls on both sides. A dynamic material handling mechanism is provided on the top of the positioning frame.

[0007] The dynamic material handling mechanism includes an L-shaped support plate movably installed at the top frame opening of the positioning frame and a steering frame fixedly installed at the rear end of the positioning frame. A shovel plate is fixedly installed at one end of the top surface of the L-shaped support plate.

[0008] The top of the shovel plate is cut at an angle, and several sets of rollers are embedded at equal intervals on one side of the inclined surface. Axle wheels are fixedly installed on both sides of the front and rear ends of the shovel plate. The front and rear sets of axle wheels slide in the corresponding limiting grooves. The front and rear axle wheels on one side are respectively engaged in the curved end of the limiting groove to form axial positioning.

[0009] Furthermore, a motor is provided on the inner wall of one side of the steering frame. A spiral guide rod is fixedly installed at the output end of the motor. A spiral guide frame is located in the middle section of the outer side of the spiral guide rod. The front end of the spiral guide frame extends to the outside of the steering frame and is fixedly installed with a vertical frame. A sliding shaft is slidably connected to the bottom end of the vertical frame. A lifting rod is hinged and fixedly installed at the front end of the sliding shaft. The bottom of the lifting rod is hinged to the center of the rear end of the L-shaped support plate.

[0010] Furthermore, the L-shaped pallet extends to the outside of the positioning frame near the shovel end, and long grooves are provided at both the front and rear ends inside the L-shaped pallet, with a dynamic clamping mechanism provided in the middle of the two sets of long grooves.

[0011] Furthermore, the dynamic clamping mechanism includes two sets of rectangular frames that pass through the two sets of long slots. Sliding frames are movably connected to the center of the front and rear end frames of the rectangular frames. The ends of the two sets of sliding frames that are away from each other slide in the inner slots set on the inner wall of the long slots. The top surface of the sliding frame extends 20cm beyond the top surface of the shovel plate.

[0012] Furthermore, a spiral rotating rod is threaded through the sliding frame located at the rear end of the two sets of rectangular sleeve frames. One end of the spiral rotating rod is rotatably connected to the inner wall of the inner groove, and the other end is connected to the other inner wall of the inner groove, where a motor is installed.

[0013] Furthermore, both sets of rectangular frames are provided with transversely extending transmission rollers at the front and rear inner walls. The two sets of transmission rollers respectively mesh with the tooth groups provided on the inner walls of the corresponding rectangular frames, and one end of the shaft of the transmission roller extends to the inner wall of the L-shaped support plate and is rotatably connected. One set of transmission rollers is provided with a motor at the end of the shaft.

[0014] Furthermore, both sets of rectangular sleeves are provided with slots at the top, and convex retaining pins are provided at the front and rear ends inside the slots. The two sets of convex retaining pins in the front row are fixedly connected to the inside of the slots, while the two sets of convex retaining pins in the rear row are slidably connected to the slots. A sliding plate is fitted onto the top of both sets of rectangular sleeves. A second cylinder is provided at the center of the sliding plate via a push rod, and the second cylinder is located on the surface of the base on the front end of the top of both sets of rectangular sleeves.

[0015] Furthermore, a T-shaped abutment is fixedly installed on the convex clamp shaft, and a clamping cylinder is sleeved on the bottom of the T-shaped abutment. A damping spring ring is provided between the bottom of the T-shaped abutment and the inner wall of the bottom of the clamping cylinder.

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

[0017] This invention utilizes a dynamic material handling mechanism. A spiral guide rod drives a spiral guide frame to move back and forth, while simultaneously pulling a lifting rod and an L-shaped pallet to rotate around a central wheel. This first transforms the horizontally positioned L-shaped pallet into an upright state, facilitating material handling and clamping by the hydraulic support. Then, the upright support is turned into a horizontally flat position, thus overcoming the limitations of low-ceilinged aisle passage, preventing the top of the support from colliding with the roof, and adapting to complex aisle conditions.

[0018] This invention also incorporates a dynamic clamping mechanism. First, a spiral rotating rod drives the sliding frame downwards, and a rectangular sleeve is fitted onto the middle section of the bottom of the support, forming a rigid longitudinal constraint. Then, a three-drive motor drives a long roller, which, through a toothed assembly, drives the rectangular sleeve to move laterally. Combined with the guidance of the inclined rollers on the shovel plate, the support is pushed onto the surface of the shovel plate and clamped. During this process, the two sets of clamping cylinders are pulled closer to each other and further clamp the hydraulic support. Thus, through bidirectional clamping that combines horizontal and vertical forces, it not only adapts to different support models but also prevents axial movement of the support, effectively improving clamping and transfer efficiency. Attached Figure Description

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a plan view of the overall structure of the present invention;

[0022] Figure 3 This is a three-dimensional schematic diagram of the dynamic material handling mechanism of the present invention;

[0023] Figure 4 This is a schematic diagram of the operation of a portion of the dynamic material handling mechanism of the present invention;

[0024] Figure 5 This is a three-dimensional schematic diagram of the combination of the moving L-shaped pallet and the dynamic clamping mechanism of the present invention;

[0025] Figure 6 This is a half-sectional schematic diagram of the combination of the L-shaped pallet and the dynamic clamping mechanism of the present invention;

[0026] Figure 7 This is a schematic diagram of a partial structure of the dynamic clamping mechanism of the present invention.

[0027] In the diagram: 1. Base; 2. Positioning frame; 201. Limiting groove; 3. Cylinder 1; 4. Dynamic material handling mechanism; 41. L-shaped support plate; 42. Steering frame; 43. Shovel plate; 44. Axle wheel; 45. Motor 1; 46. Spiral guide rod; 47. Spiral guide frame; 48. Vertical frame; 49. Sliding shaft; 410. Lifting rod; 5. Dynamic clamping mechanism; 51. Rectangular sleeve frame; 52. Sliding frame; 53. Spiral rotating rod; 54. Motor 2; 55. Transmission roller; 56. Motor 3; 57. Convex clamping shaft; 58. Slide plate; 59. Cylinder 2; 510. T-shaped stop rod; 511. Clamping cylinder; 512. Damping spring ring. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1-4 As shown, the shovel lifting structure of the hydraulic support transport vehicle in the narrow roadway of the coal mine includes a base 1 with a power mechanism inside, and a positioning frame 2 with a concave structure is movably set on the top of the base 1. A cylinder 3 is set at the center of the top surface of the base 1, and the push rod at the top output end of the cylinder 3 is rotatably connected to the bottom of the positioning frame 2. The top of the front and rear frames of the positioning frame 2 are provided with a limiting long groove 201 with a curved inner wall on both sides. A dynamic material picking mechanism 4 is set on the top of the positioning frame 2.

[0030] The dynamic material handling mechanism 4 includes an L-shaped support plate 41 movably installed at the top frame opening of the positioning frame 2 and a steering frame 42 fixedly installed at the rear end of the positioning frame 2. A shovel plate 43 is fixedly installed at one end of the top surface of the L-shaped support plate 41. The top of the shovel plate 43 is set with a beveled surface, and several sets of rollers are embedded in it at equal intervals on one side of the beveled surface. The beveled surface angle is adapted to the transition requirements of the bottom of the support. A shaft wheel 44 is fixedly installed on both sides of the front and rear ends of the shovel plate 43. The front and rear sets of shaft wheels 44 slide in the corresponding limiting grooves 201 respectively. The front and rear shaft wheels 44 on one side are respectively engaged in the curved end of the limiting groove 201 to form axial positioning.

[0031] A motor 45 is installed on the inner wall of one side of the steering frame 42. A spiral guide rod 46 is fixedly installed at the output end of the motor 45. A spiral guide frame 47 is located in the middle section of the spiral guide rod 46. The front end of the spiral guide frame 47 extends to the outside of the steering frame 42 and is fixedly installed with a vertical frame 48. A sliding shaft 49 is slidably connected to the bottom of the vertical frame 48. A lifting rod 410 is hinged and fixedly installed at the front end of the sliding shaft 49. The bottom of the lifting rod 410 is hinged to the center of the rear end of the L-shaped pallet 41. The L-shaped pallet 41 extends to the outside of the positioning frame 2 near the end of the shovel plate 43. Long grooves are provided at both the front and rear ends of the L-shaped pallet 41. A dynamic clamping mechanism 5 is provided in the middle section of the two sets of long grooves.

[0032] In actual operation, the device is first moved to the hydraulic support in the roadway to ensure that the device and the hydraulic support are aligned left and right. Then, the motor 45 is started to drive the spiral guide rod 46 to rotate and force the spiral guide frame 47 to move to one side. The spiral guide frame 47 pulls the vertical frame 48, the lifting rod 410 and the L-shaped support plate 41 to move synchronously.

[0033] During this process, several sets of shaft wheels 44 move along the inside of the limiting long groove 201. The shaft wheels 44 that were originally stuck at the curved end of one side of the limiting long groove 201 are disengaged from the curved surface positioning, while the two sets of shaft wheels 44 on the other side move towards the curved end of the corresponding limiting long groove 201 until a new axial positioning is formed. As the spiral guide frame 47 continues to pull the vertical frame 48 to move.

[0034] The sliding shaft 49 at the top of the lifting rod 410 slides upward under the pressure of the inside of the vertical frame 48, and the bottom of the lifting rod 410 pulls the L-shaped support plate 41, which rotates around the axis of the pivot wheel 44 that is inserted into the curved end of the limiting long groove 201, until the L-shaped support plate 41 rotates ninety degrees counterclockwise. After rotating, the shovel plate 43 contacts the ground laterally, and its oblique surface is adjacent to and flush with the bottom of the hydraulic support.

[0035] Then, with the help of the dynamic clamping mechanism 5, the hydraulic support is automatically pulled to the surface of the shovel plate 43, and the vertical angle between the L-shaped support plate 41 and the shovel plate 43 is used to support the hydraulic support. Then, the motor 45 drives the spiral guide rod 46 to rotate in the opposite direction, pulling the spiral guide frame 47 to reset and move. The spiral guide frame 47 first pulls the vertical frame 48, the lifting rod 410 and the L-shaped support plate 41 to reset and move synchronously.

[0036] At this time, the sliding shaft 49 at the top of the lifting rod 410 slides down and resets under the force of the spring inside the vertical frame 48, and the L-shaped tray 41 rotates 90 degrees clockwise to reset. Then, as the spiral guide frame 47 continues to pull the L-shaped tray 41, the spindle wheel 44, which is stuck at the curved end of the limiting groove 201, is forced to reset and disengage from the curved positioning end, while the spindle wheel 44 on the other side is inserted into the curved end until the entire device returns to its initial state. At this time, the hydraulic support is smoothly scooped onto the surface of the L-shaped tray 41 and then transported.

[0037] It is worth noting that when the hydraulic support being scooped up moves along the inside of the tunnel, the cylinder 3 can be activated according to the height change of the space inside the tunnel, and the vertical height of the positioning frame 2 and the L-shaped support plate 41 can be adjusted by pushing the rod (if a low roof area is encountered, the support plate is raised to avoid the support colliding with the roof).

[0038] (The normal height maintains a reasonable gap between the pallet and the bottom of the tunnel) to ensure the stability of the transportation process. In addition, when the hydraulic support is transported to the tunnel exit, cylinder 3 drives the L-shaped pallet 41 and the hydraulic support to rise above the top opening of the tunnel. Then, the L-shaped pallet 41 is rotated 90 degrees counterclockwise using the above method, so that the shovel plate 43 is flush with the ground. The dynamic clamping mechanism 5 releases the clamp and unloads the hydraulic support.

[0039] Based on the automatic loading and unloading of auxiliary hydraulic supports, this structure transforms the hydraulic supports from an upright state to a tilted horizontal state, which can significantly reduce the vertical height of the supports and avoid collisions between the hydraulic supports and the roof or sidewalls during transportation due to the low roof setting in some areas of the roadway, thus effectively improving the transportation efficiency of hydraulic supports.

[0040] Example 2: Please refer to Figure 1 , Figure 5 - Figure 7 As shown, the dynamic clamping mechanism 5 includes two sets of rectangular frames 51 that pass through the two sets of long slots. Sliding frames 52 are movably sleeved at the center of the front and rear end frames of the rectangular frames 51 respectively. The ends of the two sets of sliding frames 52 that are away from each other slide in the inner slots set on the inner wall of the long slots respectively. The top surface of the sliding frame 52 extends 20cm beyond the top surface of the shovel plate 43 so as to form a sleeve with the hydraulic support.

[0041] A spiral rod 53 is threaded through the sliding frame 52 located at the rear end of the two sets of rectangular sleeve frames 51. One end of the spiral rod 53 is rotatably connected to the inner wall of the inner groove, and the other end is connected to the other inner wall of the inner groove. A motor 54 is installed between the two sets of rectangular sleeve frames 51 and the front and rear inner walls. A transmission roller 55 is transversely connected through the two sets of transmission rollers 55. The two sets of transmission rollers 55 respectively mesh with the tooth set provided on the inner wall of the corresponding rectangular sleeve frame 51. The shaft of the transmission roller 55 extends to the inner wall of one side of the L-shaped support plate 41 and is rotatably connected. A motor 56 is installed at the end of the shaft of one set of transmission rollers 55.

[0042] The process of using the dynamic clamping mechanism 5 to assist hydraulic movement to the surface of the shovel plate 43 specifically includes:

[0043] Pre-positioning clamping: First, the L-shaped support plate 41 rotates counterclockwise by 90 degrees, which drives the two sets of rectangular sleeves 51 to rotate synchronously. At this time, the two sets of rectangular sleeves 51 are located above the hydraulic support. Then, the motor 2 54 is started and the spiral rod 53 is driven to rotate. Through its threaded structure and the threaded engagement inside the slide frame 52, the slide frame 52 is pushed to move downward, so that the two sets of rectangular sleeves 51 sink at the same time and are fitted together at the bottom middle section of the hydraulic support, forming a preliminary longitudinal constraint on the hydraulic support.

[0044] Lateral pushing: Start motor 3 56, drive a set of transmission long rollers 55 to rotate. Since the transmission long rollers 55 mesh with the teeth on the inner wall of the two sets of rectangular sleeves 51, the two sets of rectangular sleeves 51 move laterally back and forth. When the two sets of rectangular sleeves 51 simultaneously engage and pull the hydraulic support to move towards the shovel plate 43, the hydraulic support is pushed to the surface of the shovel plate 43 by means of the slope of the end of the shovel plate 43 and the combined action of the roller sliding, and abuts against the rectangular sleeves 51 and the vertical L-shaped support plate 41, forming a clamping and limiting on both sides. Then repeat the flipping step in embodiment 1, tilt the hydraulic support for transporting and loading materials to the side for stable movement.

[0045] Both sets of rectangular sleeves 51 are provided with slots at the top. The front and rear ends of the two sets of slots are provided with convex retaining pins 57. The two sets of convex retaining pins 57 in the front row are fixedly connected to the inside of the slots, while the two sets of convex retaining pins 57 in the rear row are slidably connected to the slots. Both of them are fitted with a slide plate 58 at their top. A second cylinder 59 is provided at the center of the slide plate 58 through a push rod. The second cylinder 59 is located on the machine base surface at the front end of the top of both sets of rectangular sleeves 51. A T-shaped abutment 510 is fixedly installed on the convex retaining pin 57. A clamping cylinder 511 is fitted at the bottom of the T-shaped abutment 510. A damping spring ring 512 is provided between the bottom of the T-shaped abutment 510 and the bottom inner wall of the clamping cylinder 511.

[0046] It is worth noting that, to prevent the hydraulic support from shifting during assisted shoveling and material loading, and from sliding during subsequent transportation, cylinder 59 can be activated before the hydraulic support shovels. This uses a push rod to pull the sliding plate 58 back and forth. When the two sets of convex clamping shafts 57 in the rear row slide forward along the grooves, the two sets of clamping cylinders 511 in the rear row push the hydraulic support towards the two sets of clamping cylinders 511 in the front row, thus limiting the front and rear movement of the hydraulic support. Then, the rectangular sleeve 51 pushes the limited hydraulic support closer to the shovel plate 43 for material loading, working in conjunction with the front clamping cylinders 511 to restrict the front and rear displacement of the support, further increasing the stability of the hydraulic support during material loading and transportation.

[0047] In addition, since the clamping cylinder 511 assembly is relatively long, when it is pulled by the rectangular sleeve 51 towards the L-shaped support plate 41, the end of the clamping cylinder 511 avoids contact with the L-shaped support plate 41, the elastic damping spring ring 512 is compressed, and the clamping cylinder 511 moves relative to adapt to the clamping length of the hydraulic support.

[0048] In summary, by setting up the dynamic material handling mechanism 4, the hydraulic support can be smoothly switched from an upright state to a tilted horizontal state, thus solving the transportation collision problem caused by the height limitation of the roof plate in narrow aisles for traditional handling vehicles. In addition, the dynamic clamping mechanism 5 has a dual limiting mechanism (i.e., lateral clamping and longitudinal anti-deviation), which further ensures the stability of the hydraulic support material handling process and adapts to the handling needs of different types of supports, effectively improving the loading, unloading and transportation efficiency of hydraulic supports.

[0049] Working principle: When using this invention, firstly, the hydraulic support transport vehicle in the narrow roadway of the coal mine is moved to the designated position to ensure that the positioning frame 2 is aligned with the hydraulic support. Then, the motor 45 is started to drive the spiral guide rod 46 to rotate, which forces the spiral guide frame 47, the vertical frame 48, the sliding shaft 49 and the lifting rod 410 to move together. The movement of the lifting rod 410 further drives the L-shaped pallet 41 to rotate around the axle wheel 44 that is inserted into the curved end of the limiting long groove 201, until the L-shaped pallet 41 rotates counterclockwise by ninety degrees, and the shovel plate 43 contacts the ground laterally and is flush with the bottom of the hydraulic support.

[0050] Next, the second motor 54 in the dynamic clamping mechanism 5 is started, driving the spiral rod 53 to rotate, which pushes the sliding frame 52 and the rectangular sleeve 51 to move downward until they are sleeved at the bottom middle section of the hydraulic support, forming a preliminary longitudinal constraint on the hydraulic support; then, the third motor 56 is started, driving the transmission roller 55 to rotate. Since the transmission roller 55 meshes with the tooth set on the inner wall of the rectangular sleeve 51, the two sets of rectangular sleeves 51 move laterally back and forth, pushing the hydraulic support to the surface of the shovel plate 43, forming a clamping constraint on both sides;

[0051] After the hydraulic support is clamped, the motor 45 is restarted to drive the spiral guide rod 46 to rotate in the opposite direction, pulling the spiral guide frame 47, vertical frame 48, sliding shaft 49, lifting rod 410 and L-shaped pallet 41 to reset and move. During the reset process, the sliding shaft 49 at the top of the lifting rod 410 slides downward to reset under the force of the spring inside the vertical frame 48, and the L-shaped pallet 41 rotates 90 degrees clockwise to reset. At the same time, the axle wheel 44 moves in the limiting groove 201 to return to the initial state. At this time, the hydraulic support has been smoothly installed on the surface of the L-shaped pallet 41 and is ready for transportation.

[0052] During transportation, cylinder 3 can be activated according to the height changes of the internal space of the tunnel. The vertical height of the positioning frame 2 and L-shaped pallet 41 can be adjusted by pushing the rod to ensure the stability of the transportation process. When encountering a low roof area, the pallet is raised to avoid the support colliding with the roof. At the normal height, the gap between the pallet and the bottom of the tunnel is kept reasonable.

[0053] When the hydraulic support is transported to the tunnel exit, cylinder 3 drives the L-shaped pallet 41 and the hydraulic support to rise above the tunnel top opening. Then, the L-shaped pallet 41 is rotated 90 degrees counterclockwise using the above method, so that the shovel plate 43 is flush with the ground. The dynamic clamping mechanism 5 releases its grip, completing the unloading process of the hydraulic support.

[0054] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A coal mine narrow roadway hydraulic support carrier shovel loading lifting structure, comprising a base (1) internally provided with a power mechanism, characterized in that: The base (1) top movably provided with the concave structure positioning frame (2), the base (1) top surface center is provided with cylinder one (3), and the push rod of the cylinder one (3) top output end is rotationally connected with the positioning frame (2) bottom, the positioning frame (2) front and rear frame body top is all provided with two side inner wall curved surface structure limiting long slot (201), the positioning frame (2) top is provided with dynamic material taking mechanism (4); The dynamic material taking mechanism (4) includes L-shaped supporting plate (41) movably installed at the top frame opening of the positioning frame (2) and steering frame (42) fixedly installed at the rear end of the positioning frame (2), one end of the top surface of the L-shaped supporting plate (41) is fixedly installed with a shovel plate (43); The top end of the shovel plate (43) is provided as an inclined surface, and a plurality of groups of rollers are embedded at equal distances on one side of the inclined surface, shaft wheels (44) are fixedly installed on both sides of the front and rear ends of the shovel plate (43), and the front and rear shaft wheels (44) on one side are respectively clamped in the curved surface end of the limiting long slot (201) to form axial positioning; The steering frame (42) is provided with a motor one (45) on one side of the inner wall, a spiral guide rod (46) is fixedly installed at the output end of the motor one (45), and a spiral guide frame (47) is provided at the middle segment of the outer portion of the spiral guide rod (46), the front end of the spiral guide frame (47) extends to the outside of the steering frame (42) and is fixedly installed with a vertical frame (48), a sliding shaft (49) is slidably connected at the bottom end inside the vertical frame (48), a lifting rod (410) is hingedly fixedly installed at the front end of the sliding shaft (49), and the bottom of the lifting rod (410) is hingedly connected with the rear end center of the L-shaped supporting plate (41); The L-shaped supporting plate (41) extends to the outside of the positioning frame (2) near the end of the shovel plate (43), and long slots are provided at the front and rear ends inside the L-shaped supporting plate (41), and a dynamic clamping mechanism (5) is provided at the middle segments of the two groups of long slots; The dynamic clamping mechanism (5) includes two groups of rectangular sleeve frames (51) penetratingly provided in the two groups of long slots, a sliding frame (52) is movably sleeved at the center of the front and rear end frames of the rectangular sleeve frame (51), and the sliding frames (52) away from each other are slidably arranged in the inner grooves provided at the inner walls of the long slots, and the top surface of the sliding frame (52) is 20cm higher than the top surface of the shovel plate (43).

2. The hydraulic support carrier of coal mine narrow roadway according to claim 1, characterized in that, Spiral rotating rods (53) are threadedly provided inside the sliding frames (52) at the rear ends of the two groups of rectangular sleeve frames (51), one end of the spiral rotating rod (53) is rotationally connected with the inner wall of the inner groove, and the other end is connected with the other inner wall of the inner groove.

3. The hydraulic support carrier of coal mine narrow roadway according to claim 1, characterized in that, Two groups of the rectangular sleeve frame (51) inside the front and rear inner wall is provided with a transmission long roller (55) through the horizontal, two groups of the transmission long roller (55) are respectively engaged with the tooth group arranged on the inner wall of the corresponding rectangular sleeve frame (51), and the transmission long roller (55) one end shaft extends to the inner wall of one side of the L-shaped supporting plate (41) and is rotationally connected, one group of the transmission long roller (55) shaft end is provided with motor three (56).

4. The hydraulic support carrier of coal mine narrow roadway according to claim 1, characterized in that, Two groups of the rectangular sleeve frame (51) top are provided with clamping grooves, and the front and rear ends of the two groups of clamping grooves are provided with convex clamping shafts (57), the front two groups of the convex clamping shafts (57) are fixedly connected with the clamping grooves, the rear two groups of the convex clamping shafts (57) are slidably connected with the clamping grooves, and the top of the two groups is jointly sleeved with a sliding plate (58), the sliding plate (58) is provided with a cylinder two (59) at the center through a push rod, and the cylinder two (59) is arranged on the surface of the bed jointly installed on the top of the two groups of rectangular sleeve frames (51).

5. The hydraulic support carrier of coal mine narrow roadway according to claim 4, characterized in that, The convex clamping shaft (57) is fixedly installed with a T-shaped resisting rod (510), and the T-shaped resisting rod (510) is sleeved with a clamping cylinder (511) at the bottom, and a damping spring ring (512) is arranged between the bottom of the T-shaped resisting rod (510) and the inner wall of the bottom of the clamping cylinder (511).

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