A support transport vehicle for narrow tunnels in coal mines

Abstract

The present invention relates to the technical field of coal mine mechanical equipment, and discloses a support transport vehicle for narrow coal mine lanes, comprising a vehicle body, wherein steering wheels and rear wheels are arranged on both sides of the vehicle body, a traction hanging platform is arranged on the front end of the vehicle body, a turning groove is arranged on the top of the vehicle body, a mounting groove is arranged on the bottom of the turning groove, a rotating structure is arranged in the turning groove, a power structure for driving the rotating structure to rotate is arranged in the vehicle body, and transfer structures are arranged on both sides of the top of the vehicle body. The device realizes the overall transport work of the hydraulic support, solves the problem that the traditional transport vehicle cannot realize the lifting and rotation of the hydraulic support independently, the overall structure has low height and small volume, and is convenient for use in narrow lanes, the uniquely designed rotating structure and power structure realize the rotation action of the hydraulic support, can adjust the position of the main support frame and the auxiliary support frame, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine mechanical equipment, in particular to a support transport vehicle for narrow coal mine tunnels. Background Art

[0002] Hydraulic supports for coal mines are a type of support equipment widely used in coal mines. They are used to support the roof of the mining face and prevent rock collapse. Hydraulic supports are mainly composed of a base, a support, a working plunger and a hydraulic system. The support injects hydraulic oil into the working plunger through the hydraulic system to extend or shorten the support, thereby adjusting the support height. It has the advantages of strong support capacity, good adjustability and easy operation. It is often used for the support of the roof of the working face, the mining face, the filling of the goaf and the support of the ventilation tunnel.

[0003] Although hydraulic supports have many advantages, their large size and heavy weight make it difficult to transport them, especially in coal mine tunnels with narrow spaces. In addition, due to the use of hydraulic components, their structure is more complex than traditional supports, and disassembly and transportation are more troublesome than overall transportation. Most of the existing support transport vehicles are used for transporting traditional supports. Since the hydraulic support and the transmission support have different structures, the overall transportation of the hydraulic support cannot be completed. There are also low-chassis transport vehicles similar to trucks, but additional lifting equipment is required to load and unload the hydraulic support into the carriage, which is inconvenient to use. In addition, the hydraulic support is fixed in the carriage and cannot be adjusted. It is difficult to pass through narrow tunnels and when encountering obstacles. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a support transport vehicle for narrow tunnels in coal mines.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a support transport vehicle for narrow lanes in coal mines, comprising a vehicle body, wherein steering wheels and rear wheels are arranged on both sides of the vehicle body, a traction hanging platform is arranged on the front end of the vehicle body, a hydraulic cylinder 1 is arranged in the through holes at the four corners of the bottom of the vehicle body, a support plate is hingedly arranged at the output end of the hydraulic cylinder 1, a rotating groove is arranged on the top of the vehicle body, a mounting groove is arranged at the bottom of the rotating groove, a rotating structure is arranged in the rotating groove, a power structure for driving the rotating structure to rotate is arranged in the vehicle body, and a transfer structure is arranged on both sides of the top of the vehicle body, the rotating structure comprises a bottom ring platform, a turntable and a connecting platform, the bottom ring platform is arranged on the mounting groove, a plurality of rollers are evenly arranged in the groove at the top of the bottom ring platform, the turntable is arranged on the top of the bottom ring platform, the bottom of the turntable is in contact with the rollers, the connecting platform is arranged in the turntable, the connecting platform comprises two semi-ring platforms, the semi-ring platforms are assembled into a circular ring platform, the two semi-ring platforms are placed on the top of the turntable, a combining platform is arranged on the semi-ring platform, and the combining platforms on the two semi-ring platforms are connected by pins. The semi-ring platform is connected, and a tooth groove is provided on the side of the semi-ring platform. Two lifting platforms are symmetrically provided on the top of the semi-ring platform. The power structure includes a motor, a gear 1 and a gear 2. The output end of the motor is provided with a bevel gear 1, and the bottom of the gear 1 is provided with a bevel gear 2 meshing with the bevel gear 1. The gear 1 meshes with the gear 2, and the gear 2 meshes with the tooth groove. The transfer structure includes a movable frame and an auxiliary lifting frame. The movable frame includes two load-bearing seats, and the load-bearing seat is hinged with the top of the vehicle body. A transmission rod is provided at the rear side of the load-bearing seat. The two ends of the transmission rod are respectively hinged with the two load-bearing seats. Two hydraulic cylinders 2 are hinged at the bottom of the transmission rod. The hydraulic cylinders 2 are arranged in the storage grooves on both sides of the top of the vehicle body and are hinged to the bottom of the storage grooves. The auxiliary lifting frame includes two connecting seats, and the connecting seat is bolted to the load-bearing seat. A load-bearing platform is provided on the top of the connecting seat. The bottoms of the two ends of the load-bearing platform are hinged with the top of the connecting seat. Two hydraulic cylinders 3 are symmetrically provided at the bottom of the load-bearing platform. A connecting shaft is provided at the output end of the hydraulic cylinder 3, and the connecting shaft is plugged with the through hole on the lifting platform.

[0006] As an improvement: the power structure also includes a cylinder and a connecting part, the gear one and gear two are rotatably matched with the through holes at both ends of the connecting part, one end of the cylinder is hinged to the side of the connecting part, and the other end is hinged to the internal groove of the vehicle body, the bosses at both ends of the gear one pass through the through holes on the connecting part and rotatably match with the internal groove of the vehicle body, the gear two moves with the end of the connecting part, the upper and lower sides of the connecting part are provided with arc-shaped tables, the arc-shaped tables are slidably matched with the internal groove of the vehicle body, and a position indicating column is provided on the upper arc-shaped table, and the top of the position indicating column passes through the through hole on the top of the vehicle body. The collision damage problem of gear two is solved through the movable design of the power structure.

[0007] As an improvement: an arch frame is provided between the load-bearing platforms on both sides, a connecting groove is provided on the top of the load-bearing platform, and the end of the arch frame is connected to the connecting groove by bolts. The arch frame ensures the synchronous movement of the load-bearing platform, balances the force on the load-bearing platform, and avoids skewing.

[0008] As an improvement: the articulated axis between the load-bearing seat and the vehicle body, and the articulated axis between the transmission rod and the load-bearing seat form a parallelogram structure; the articulated axis between the connecting seat and the load-bearing platform is located on the extension line of the line connecting the above two axes; and the horizontal movement of the transmission rod and the load-bearing platform is ensured by the parallelogram structure.

[0009] As an improvement: a first plug-in column is provided on the top of the turntable, and a second plug-in column is provided on the inner side of the semi-ring platform. The first plug-in column and the second plug-in column are plugged into and matched with the grooves on the bracket to realize the connection between the turntable and the connecting platform and the hydraulic bracket.

[0010] As an improvement: the two hydraulic cylinders 2 are symmetrically and obliquely arranged, and the hydraulic cylinder 3 is staggered with the connecting seat. The symmetrical and oblique arrangement of the hydraulic cylinder 2 ensures that the load-bearing platform has sufficient pulling force during the overall movement process. The hydraulic cylinder 3 is staggered with the connecting seat to avoid collision between the connecting platform and the load-bearing seat.

[0011] As an improvement: an avoidance groove is provided on the rear side of the vehicle body, and the width of the avoidance groove is greater than the diameter of the connecting platform, so as to facilitate placing the hydraulic support with the connecting platform installed in the avoidance groove and reduce the movement range of the transfer structure.

[0012] As an improvement: an electromagnet is provided inside the turntable, which cooperates with the connecting platform through magnetic adsorption to connect the turntable and the connecting platform.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention realizes the overall handling of the hydraulic support, solves the problem that the traditional transport vehicle cannot independently realize the lifting and rotation of the hydraulic support, the overall structure is low in height and small in size, and is convenient for use in narrow lanes. The uniquely designed rotation structure and power structure realize the rotation action of the hydraulic support, so that the hydraulic support can adjust the position of the main support frame and the auxiliary support frame during the transfer process of the narrow lane, and solves the problem that it is difficult to pass through when turning in a narrow lane or encountering obstacles. The practicability is strong. Specifically:

[0014] 1. The transfer structure is symmetrically arranged on both sides of the transporter. By cooperating with the connecting platform for lifting and transfer, the highest point of the load-bearing platform can be lowered, which solves the problem of collision between the lifting action of the hydraulic support and the top surface of the roadway. Through the horizontal movement of the load-bearing platform, the problem of the hydraulic support tilting during the lifting process is avoided, and the stability of the transfer process is improved;

[0015] 2. The power structure adopts a split design, which makes it easier to install the connecting table and the turntable on the hydraulic support base in advance, solving the problem that the position of the socket on the base and the plug column on the turntable are inconvenient to align and adjust after the hydraulic support base moves to the top of the turntable;

[0016] 3. Through the active design of the power structure, the gear 2 can be stored in the internal cavity of the transport vehicle, avoiding the collision problem between the connecting platform and the gear 2 when it falls into the rotating groove. The position of the position indicator column can clearly know the position of the gear 2, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a structural schematic diagram of a support transport vehicle for a narrow tunnel in a coal mine.

[0018] Figure 2 The invention discloses an exploded view of a support transport vehicle for narrow tunnels in coal mines.

[0019] Figure 3 The present invention is a schematic structural diagram of a support transport vehicle for narrow tunnels in a coal mine in an empty state.

[0020] Figure 4 It is a structural schematic diagram of a support transport vehicle for a narrow tunnel in a coal mine in a transfer state according to the present invention.

[0021] Figure 5 The utility model is a structural schematic diagram of a support transporter for a narrow tunnel of a coal mine according to the present invention.

[0022] Figure 6 The invention discloses a structural schematic diagram of a rotating structure of a support transport vehicle for a narrow tunnel in a coal mine.

[0023] Figure 7 It is an exploded view of the rotating structure of a support transport vehicle for a narrow tunnel in a coal mine according to the present invention.

[0024] Figure 8 It is an exploded view of the power structure of a support transport vehicle for narrow tunnels in coal mines according to the present invention.

[0025] Fig. 9 The present invention is a schematic structural diagram of a transport structure of a support transport vehicle for a narrow tunnel in a coal mine.

[0026] Fig.10 The invention discloses a structural schematic diagram of a hydraulic support of a support transport vehicle for narrow tunnels in coal mines.

[0027] As shown in the figure: 1. Car body; 2. Rotating structure; 3. Power structure; 4. Transfer structure; 5. Arch frame; 6. Hydraulic support; 11. Steering wheel; 12. Rear wheel; 13. Storage slot; 14. Avoidance slot; 15. Installation slot; 16. Rotation slot; 17. Traction hanging platform; 18. Hydraulic cylinder 1; 19. Support plate; 21. Bottom ring platform; 211. Roller; 22. Turntable; 221. Insertion column 1; 23. Connecting platform; 231. Semi-ring platform; 232. Tooth groove; 233. Insertion column 2; 234. Combination platform; 235. Lifting platform; 31. Motor; 32. Bevel gear one; 33. Bevel gear two; 34. Gear one; 35. Gear two; 36. Connector; 361. Arc platform; 362. Positioning column; 37. Cylinder; 41. Movable frame; 411. Load-bearing seat; 412. Transmission rod; 413. Hydraulic cylinder two; 42. Auxiliary lifting frame; 421. Connecting seat; 422. Load-bearing platform; 423. Hydraulic cylinder three; 424. Connecting shaft; 425. Connecting groove; 61. Base; 611. Socket one; 612. Socket two; 62. Lifting hydraulic cylinder; 63. Main support frame; 64. Auxiliary support frame. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] Combined with Figure 1 , Attachment Figure 2 and attached Figure 5 As shown, a support transport vehicle for narrow tunnels in coal mines comprises a vehicle body 1, wherein steering wheels 11 and rear wheels 12 are arranged on both sides of the vehicle body 1, a traction hanging platform 17 is arranged at the front end of the vehicle body 1, a hydraulic cylinder 18 is arranged in the through holes at the four corners of the bottom of the vehicle body 1, a support plate 19 is hingedly arranged at the output end of the hydraulic cylinder 18, a rotating groove 16 is arranged on the top of the vehicle body 1, a mounting groove 15 is arranged at the bottom of the rotating groove 16, a rotating structure 2 is arranged in the rotating groove 16, a power structure 3 for driving the rotating structure 2 to rotate is arranged in the vehicle body 1, transfer structures 4 are arranged on both sides of the top of the vehicle body 1, and an avoidance groove 14 is arranged on the rear side of the vehicle body 1.

[0030] Combined with Figure 2 , Attachment Figure 5 , Attachment Figure 6 and attached Figure 7As shown, the rotating structure 2 includes a bottom ring platform 21, a turntable 22 and a connecting platform 23. The bottom ring platform 21 is arranged on the mounting groove 15. A plurality of rollers 211 are evenly arranged in the groove at the top of the bottom ring platform 21. The turntable 22 is arranged on the top of the bottom ring platform 21. The bottom of the turntable 22 contacts and cooperates with the rollers 211. The connecting platform 23 is arranged in the rotating groove 16. The connecting platform 23 includes two semi-ring platforms 231. The semi-ring platforms 231 are assembled into a circular ring platform. The width of the avoidance groove 14 is greater than the diameter of the connecting platform 23. The two semi-ring platforms 231 are placed on the top of the turntable 22. An electromagnet is arranged inside the turntable 22 to cooperate with the magnetic adsorption of the connecting platform 23. A combining platform 234 is arranged on the semi-ring platform 231. The combining platforms 234 on the two semi-ring platforms 231 are connected by pins or bolts. A tooth groove 232 is arranged on the side of the semi-ring platform 231. Two lifting platforms 235 are symmetrically arranged on the top of the semi-ring platform 231.

[0031] Working principle of rotating structure 2: After the main support frame 63 and the auxiliary support frame 64 of the hydraulic support 6 are folded up, the transfer work is carried out, and the two semi-ring platforms 231 of the connecting platform 23 are respectively installed on both sides of the base 61, so that the second plug column 233 is inserted into the second plug hole 612, and the two connecting platforms 234 are connected with a pin shaft or a bolt, and then the auxiliary lifting frame 42 is installed, and the connecting shaft 424 is inserted into the through hole on the lifting platform 235. Then, driven by the transfer structure 4, the hydraulic support 6 is raised by lifting the connecting platform 23, and then Install the turntable 22 under the connecting platform 23 so that the plug-in column 221 is inserted into the socket 611. The turntable 22 is adsorbed on the connecting platform 23 through the internal electromagnet. Then the transfer structure 4 drives the hydraulic support 6 to be transferred to the top of the installation groove 15. Then the turntable 22 is placed on the bottom ring platform 21 in the installation groove 15. The rotating structure 2 drives the hydraulic support 6 manually or driven by the power structure 3, so that the hydraulic support 6 can avoid obstacles by rotating during transportation in narrow alleys and can also pass through narrow curves.

[0032] Combined with Figure 5 , Attachment Figure 6 and attached Figure 8As shown, the power structure 3 includes a motor 31, a gear 1 34 and a gear 2 35. The output end of the motor 31 is provided with a bevel gear 1 32, the bottom of the gear 1 34 is provided with a bevel gear 2 33 meshing with the bevel gear 1 32, the gear 1 34 is meshed with the gear 2 35, the gear 2 35 is meshed with the tooth groove 232, the power structure 3 also includes a cylinder 37 and a connecting member 36, the gear 1 34 and the gear 2 35 are rotatably matched with the through holes at both ends of the connecting member 36, and the cylinder 37 is One end is hinged to the side of the connecting piece 36, and the other end is hinged to the internal groove of the vehicle body 1. The bosses at both ends of the gear 1 34 pass through the through holes on the connecting piece 36 and rotate with the internal groove of the vehicle body 1. The gear 2 35 moves following the end of the connecting piece 36. The connecting piece 36 is provided with an arc platform 361 on the upper and lower sides. The arc platform 361 slides with the internal groove of the vehicle body 1. A positioning column 362 is provided on the upper arc platform 361, and the top of the positioning column 362 passes through the top through hole of the vehicle body 1.

[0033] Working principle of power structure 3: motor 31 drives bevel gear 1 32 to rotate, and bevel gear 1 32 is meshed with bevel gear 2 33 to drive gear 1 34 to rotate, and gear 1 34 is meshed with gear 2 35 to drive gear 2 35 to rotate, and gear 2 35 is meshed with tooth groove 232 to drive connecting platform 23 to rotate, thereby driving turntable 22 and hydraulic support 6 to rotate, and realizing the rotation of hydraulic support 6, and driving connecting member 36 to rotate with gear 1 34 as the axis through cylinder 37, and driving gear 2 35 to rotate with connecting member 36, before connecting platform 23 falls into rotating groove 16, gear 2 35 is stored in the internal cavity of vehicle body 1, and after connecting platform 23 falls into rotating groove 16, gear 2 35 re-enters rotating groove 16 and meshes with tooth groove 232, and this structure avoids the collision damage problem of gear 2 35 in the process of connecting platform 23 falling into rotating groove 16.

[0034] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Fig. 9As shown, the transfer structure 4 includes a movable frame 41 and an auxiliary lifting frame 42, the movable frame 41 includes two load-bearing seats 411, the load-bearing seat 411 is hinged to the top of the vehicle body 1, a transmission rod 412 is provided on the rear side of the load-bearing seat 411, the two ends of the transmission rod 412 are respectively hinged to the two load-bearing seats 411, the bottom of the transmission rod 412 is hinged with two hydraulic cylinders 413, the hydraulic cylinders 413 are arranged in the storage grooves 13 on both sides of the top of the vehicle body 1 and are hinged to the bottom of the storage grooves 13, the two hydraulic cylinders 413 are symmetrically and obliquely arranged, the auxiliary lifting frame 42 includes two connecting seats 421, the connecting seat 421 is bolted to the load-bearing seat 411, the top of the connecting seat 421 is provided with a load-bearing platform 422, the The bottom of both ends of the load-bearing platform 422 is hinged to the top of the connecting seat 421, and two hydraulic cylinders 423 are symmetrically arranged at the bottom of the load-bearing platform 422. The hydraulic cylinders 423 are staggered with the connecting seat 421, and the output end of the hydraulic cylinder 423 is provided with a connecting shaft 424, and the connecting shaft 424 is plugged into the through hole on the lifting platform 235. An arch frame 5 is arranged between the load-bearing platforms 422 on both sides, and a connecting groove 425 is arranged on the top of the load-bearing platform 422. The end of the arch frame 5 is connected to the connecting groove 425 by bolts, and the load-bearing seat 411 and the vehicle body 1 are hinged at the axis, and the transmission rod 412 and the load-bearing seat 411 are hinged at the axis to form a parallelogram structure, and the hinge axis of the connecting seat 421 and the load-bearing platform 422 is located on the extension line of the line connecting the above two axes.

[0035] Working principle of transfer structure 4: Hydraulic cylinder 2 413 drives transmission rod 412 to move. Since transmission rod 412, two load-bearing seats 411 and vehicle body 1 form a movable parallelogram structure, transmission rod 412 moves in a horizontal form. The parallelogram structure formed by transmission rod 412, two load-bearing seats 411, two connecting seats 421 and load-bearing platform 422 enables load-bearing platform 422 to move in a horizontal manner. Two hydraulic cylinders 2 413 are symmetrically and obliquely arranged to ensure that load-bearing platform 422 has sufficient pulling force to move when carrying hydraulic support 6 backward and resetting, and ensure that hydraulic cylinder 3 423 moves in a consistent manner in the horizontal direction. Hydraulic cylinder 2 413 drives the movable frame 41 to move backward. After the connecting platform 23 is installed on the base 61, the connecting seat 421 of the auxiliary lifting frame 42 is installed on the load-bearing seat 411, and the connecting shaft 424 is inserted into the through hole on the lifting platform 235. Then, hydraulic cylinder 2 413 drives the movable frame 41, the auxiliary lifting frame 42 and the hydraulic support 6 to move to the top of the rotating groove 16. Then, the two hydraulic cylinders 3 423 act synchronously to place the connecting platform 23 in the rotating groove 16 to realize the transportation of the hydraulic support 6. In this process, the two load-bearing platforms 422 are connected by the arch frame 5 to ensure the synchronous action of the load-bearing platform 422, and also balance the force on the load-bearing platform 422 to avoid skew.

[0036] Combined with Figure 1 , Attachment Figure 4 and attached Fig.10 As shown, the hydraulic support 6 used in the coal mine tunnel includes a base 61, a lifting hydraulic cylinder 62, a main support frame 63 and an auxiliary support frame 64. The base 61 is provided with a socket 1 611 and a socket 2 612 at the bottom and both sides respectively. The turntable 22 is provided with a column 1 221 at the top, and a column 2 233 is provided on the inner side of the semi-annular platform 231. The column 1 221 and the column 2 233 are respectively plugged into and matched with the socket 1 611 and the socket 2 612.

[0037] The working principle of the hydraulic support 6 is to realize the extension and support action of the main support frame 63 and the auxiliary support frame 64 through the jacking hydraulic cylinder 62. This is the existing technology and will not be repeated in this article. The two semi-ring platforms 231 are fixed on the base 61 by plugging and matching the plug column 233 with the plug hole 2 612 and connecting the combination platform 234 through a pin shaft or bolts, so as to facilitate the transportation and rotation of the hydraulic support 6. After the base 61 is lifted, the turntable 22 is connected to the bottom of the base 61 by plugging and matching the plug column 1 221 with the plug hole 1 611. The turntable 22 carries the hydraulic support 6 and rotates on the bottom ring platform 21 through the cooperation of the turntable 22 and the multiple rollers 211.

[0038] In the specific implementation of the present invention, before the hydraulic support 6 is transported, the connecting platform 23 is installed on both sides of the base 61, the vehicle body 1 is moved to the position of the hydraulic support 6, so that the base 61 and the connecting platform 23 are in the position of the avoidance groove 14, and then the auxiliary lifting frame 42 and the arch frame 5 are installed to connect the movable frame 41 and the connecting platform 23. Under the drive of the movable frame 41, the auxiliary lifting frame 42 transfers the hydraulic support 6 to the transfer groove 16, and then the auxiliary lifting frame 42 and the arch frame 5 are removed, and the highest point of the movable frame 41 is lowered, and other power vehicles are pulled by the traction hanging platform 17. When the vehicle body 1 is moved to the designated position in a narrow lane and encounters a curve or a high obstacle, the power structure 3 drives the rotating structure 2 to rotate the hydraulic support 6, thereby adjusting the positions of the main support frame 63 and the auxiliary support frame 64 to avoid the obstacle and enable it to pass. After reaching the designated position, the auxiliary lifting frame 42 and the arch frame 5 are installed, and the transfer structure 4 places the hydraulic support 6 on the ground at the position of the avoidance groove 14 to complete the transportation work. The device can be designed with a driving structure at the front end of the vehicle body 1 so that it can independently complete the movement.

[0039] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A support transport vehicle for use in narrow tunnels of coal mines, comprising a vehicle body (1), wherein the vehicle body (1) is provided with steering wheels (11) and rear wheels (12) on both sides, a traction hanging platform (17) is provided at the front end of the vehicle body (1), hydraulic cylinders (18) are provided in through holes at four corners of the bottom of the vehicle body (1), and a support plate (19) is hingedly provided at the output end of the hydraulic cylinder (18); Features: The top of the vehicle body (1) is provided with a rotation groove (16), the bottom of the rotation groove (16) is provided with a mounting groove (15), a rotation structure (2) is provided in the rotation groove (16), a power structure (3) for driving the rotation structure (2) to rotate is provided in the vehicle body (1), and transfer structures (4) are provided on both sides of the top of the vehicle body (1); The rotating structure (2) comprises a bottom ring platform (21), a rotating platform (22) and a connecting platform (23); the bottom ring platform (21) is arranged on the mounting groove (15); a plurality of rotating rollers (211) are evenly arranged in a groove at the top of the bottom ring platform (21); the rotating platform (22) is arranged on the top of the bottom ring platform (21); the bottom of the rotating platform (22) is in contact with the rotating rollers (211); the connecting platform (23) is arranged in the rotating groove (16); the connecting platform (2 3) comprising two semi-annular platforms (231), the semi-annular platforms (231) being assembled into a circular annular platform, the two semi-annular platforms (231) being placed on the top of the turntable (22), the semi-annular platforms (231) being provided with a combining platform (234), the combining platforms (234) on the two semi-annular platforms (231) being connected via a pin shaft, the side of the semi-annular platforms (231) being provided with tooth grooves (232), and the top of the semi-annular platforms (231) being symmetrically provided with two lifting platforms (235); The power structure (3) comprises a motor (31), a gear 1 (34) and a gear 2 (35); the output end of the motor (31) is provided with a bevel gear 1 (32); the bottom of the gear 1 (34) is provided with a bevel gear 2 (33) meshing with the bevel gear 1 (32); the gear 1 (34) meshes with the gear 2 (35); and the gear 2 (35) meshes with the tooth groove (232); The transfer structure (4) comprises a movable frame (41) and an auxiliary lifting frame (42), wherein the movable frame (41) comprises two load-bearing seats (411), wherein the load-bearing seats (411) are hinged to the top of the vehicle body (1), and a transmission rod (412) is provided at the rear side of the load-bearing seat (411), and the two ends of the transmission rod (412) are respectively hinged to the two load-bearing seats (411), and the bottom of the transmission rod (412) is hinged to two hydraulic cylinders (413), and the hydraulic cylinders (413) are arranged in the storage grooves (13) on both sides of the top of the vehicle body (1) and are connected to the storage grooves. (13) The bottom is hinged, the auxiliary lifting frame (42) includes two connecting seats (421), the connecting seats (421) are bolted to the load-bearing seat (411), the top of the connecting seat (421) is provided with a load-bearing platform (422), the bottoms of both ends of the load-bearing platform (422) are hinged to the top of the connecting seat (421), two hydraulic cylinders (423) are symmetrically provided at the bottom of the load-bearing platform (422), the output end of the hydraulic cylinder (423) is provided with a connecting shaft (424), and the connecting shaft (424) is plugged into and matched with the through hole on the lifting platform (235); The power structure (3) further comprises a cylinder (37) and a connecting member (36); the gear 1 (34) and the gear 2 (35) are rotatably engaged with through holes at both ends of the connecting member (36); one end of the cylinder (37) is hinged to the side of the connecting member (36), and the other end is hinged to the internal groove of the vehicle body (1); the bosses at both ends of the gear 1 (34) pass through the through holes on the connecting member (36) and are rotatably engaged with the internal groove of the vehicle body (1); the gear 2 (35) moves following the end of the connecting member (36); the connecting member (36) is provided with an arc platform (361) on both upper and lower sides; the arc platform (361) is slidably engaged with the internal groove of the vehicle body (1); a position indicating column (362) is provided on the upper arc platform (361); the top of the position indicating column (362) passes through the through hole at the top of the vehicle body (1).

2. A support transport vehicle for narrow coal mine tunnels according to claim 1, characterized in that: An arch frame (5) is provided between the load-bearing platforms (422) on both sides, a connecting groove (425) is provided on the top of the load-bearing platform (422), and the end of the arch frame (5) is connected to the connecting groove (425) by bolts.

3. A support transport vehicle for narrow coal mine tunnels according to claim 1, characterized in that: The hinge axis of the load-bearing seat (411) and the vehicle body (1), and the hinge axis of the transmission rod (412) and the load-bearing seat (411) form a parallelogram structure, and the hinge axis of the connecting seat (421) and the load-bearing platform (422) is located on the extension line of the connection line of the hinge axis of the load-bearing seat (411) and the vehicle body (1), and the hinge axis of the transmission rod (412) and the load-bearing seat (411).

4. A support transport vehicle for narrow coal mine tunnels according to claim 1, characterized in that: The top of the turntable (22) is provided with a first plug post (221), the inner side of the semi-ring platform (231) is provided with a second plug post (233), and the first plug post (221) and the second plug post (233) are plugged into and matched with grooves on the bracket.

5. A support transport vehicle for narrow coal mine tunnels according to claim 1, characterized in that: The two hydraulic cylinders 2 (413) are symmetrically arranged obliquely, and the hydraulic cylinder 3 (423) is staggered with the connecting seat (421).

6. A support transport vehicle for narrow coal mine tunnels according to claim 1, characterized in that: The rear side of the vehicle body (1) is provided with an avoidance groove (14), and the width of the avoidance groove (14) is greater than the diameter of the connecting platform (23).

7. A support transport vehicle for narrow coal mine tunnels according to claim 1, characterized in that: An electromagnet is provided inside the rotating table (22) and cooperates with the connecting table (23) by magnetic adsorption.

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