A variable-section lining trolley for underground mines

Abstract

The invention discloses an underground mine variable-section lining trolley, which belongs to the technical field of tunnel construction lining equipment, and comprises a lining trolley body, wherein the lining trolley body comprises a first steel template located at the highest point and two second steel templates located on both sides of the first steel template, the two second steel templates and the first steel template are provided with casting ports, and the edges of the first steel template and the two second steel templates are connected with the same concrete vibration component. In the invention, the injection angle of the spray hole can be continuously changed, which is beneficial to multi-angle flushing of the first steel template and the second steel template, and in this process, the operation of the vibration rod needs to be controlled, and the multi-angle liquid flushing is combined with the vibration, so as to better realize the cleaning of the casting surface of the first steel template and the second steel template. After the cleaning is completed, hot compressed air is continuously poured into the vibration rod to dry the first steel template and the second steel template, and then a release agent is injected into the vibration rod.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction lining equipment, and in particular relates to a variable-section lining trolley for underground mines. Background Art

[0002] The underground mine variable cross-section lining trolley is mainly used for lining operations of underground stations, tunnels and other projects constructed by the mining method. It can adapt to the lining requirements of tunnels with different cross-sections and improve construction efficiency and quality. During the construction process, the formwork system is first adjusted according to the cross-section requirements of the tunnel. Then, the hydraulic system drives the formwork system to erect the formwork, and concrete is poured into the gap between the formwork and the inner wall of the tunnel for pouring. After pouring, the hydraulic system drives the formwork system to demould for the next cycle of construction.

[0003] The prior art discloses some invention patents in the field of tunnel construction lining equipment technology, among which the invention patent with publication number CN116274057A discloses a tunnel lining trolley template surface cleaning process, including: operating the cleaning rod lifting mechanism to extend the cleaning rod so that the cleaning rod is located outside the template, retracting the cleaning rod so that the cleaning rod is close to the template surface, starting the dust removal device and the driving mechanism on the cleaning rod to rotate the cleaning brush to start cleaning the template, and the generated dust is sucked into the dust removal device through the cleaning rod suction port, and the cleaning rod moves along the template surface to the bottom limited position on the other side, and then the dust removal device and the driving mechanism on the cleaning rod are closed to complete the dust removal operation on the template surface. The release agent is sprayed on the surface of the template through the release agent nozzle of the cleaning rod. At the same time, the cleaning rod reaches the bottom of the other side of the template, and the release agent spraying pump is turned off to complete the spraying of the release agent on the template surface. This technical solution realizes the cleaning operation of the template surface in a narrow demoulding space without affecting the construction of the original tunnel lining trolley. There are still some shortcomings in the application of this technical solution. In the traditional construction process, after each demoulding, the operator drills to the top of the template to clean and spray the release agent. Due to the limitations of construction conditions, the space above the template is small, and the construction workers have difficulty in working. Not only is the operation efficiency low and dangerous, but it is also difficult to thoroughly clean the template and evenly spray the release agent.

[0004] Based on this, the present invention designs an underground mine variable-section lining trolley to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that in the traditional construction process, after each demoulding, the operating personnel drill to the top of the template to clean and spray the release agent. Due to the limitations of construction conditions, the space above the template is narrow, and the construction personnel have difficulty in working. Not only is the working efficiency low and the risk high, but it is also difficult to thoroughly clean the template and evenly spray the release agent. A variable-section lining trolley for underground mines is proposed to solve the problem that in the traditional construction process, the operating personnel drill to the top of the template to clean and spray the release agent.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A variable-section lining trolley for an underground mine comprises a lining trolley body, wherein the lining trolley body comprises a first steel template located at the highest point and two second steel templates located on both sides of the first steel template, casting ports are provided on the two second steel templates and the first steel template, the edges of the first steel template and the two second steel templates are connected to the same concrete vibration assembly, the concrete vibration assembly comprises a first track member connected to the edge of the first steel template and two second track members respectively connected to the edges of the two second steel templates, a moving member is meshed on the inner sides of the first track member and the two second track members, a decontamination sleeve is sleeved on the inner side of the moving member, a vibrating rod is sleeved on the inner side of the decontamination sleeve for compacting concrete on the casting surfaces of the first steel template and the two second steel templates.

[0008] As a further description of the above technical solution:

[0009] The first rail member and the second rail member have the same structure. The first rail member includes an inner rail connected to the edge of the first steel template. An outer rail is arranged on the periphery of the inner rail. The outer rail and the side end faces of the inner rail are connected with a plurality of U-shaped frames for supporting and fixing the outer rail. The outer arc surface of the inner rail and the inner arc surface of the outer rail are both connected with a toothed panel. The other end faces of the outer rail and the inner rail are both connected with a limiting panel for limiting and guiding the moving part.

[0010] As a further description of the above technical solution:

[0011] The movable part includes a first adapter seat between an upper and lower toothed panels, a first double-axis driver is installed on the end face of the first adapter seat, two output shafts of the first double-axis driver are both equipped with first gears, the two first gears are meshed with the upper and lower toothed panels, an adapter shaft is rotatably connected to the inner side of the other end of the first adapter seat, an adapter spring is sleeved on the end of the adapter shaft, the adapter shaft is rotatably connected to the inner side of the other end of the first adapter seat through the adapter spring, a second adapter seat is sleeved on the other end face of the second adapter seat, a second double-axis driver is installed, two output shafts of the second double-axis driver are both equipped with second gears, the two second gears are meshed with the upper and lower toothed panels, and the dirt removal sleeve is sleeved on the inner side of the first adapter seat.

[0012] As a further description of the above technical solution:

[0013] The vibrating rod is provided with a plurality of telescopic holes, each of which is sleeved with a flushing assembly, the flushing assembly comprising a nozzle sleeved in the telescopic hole, the end of the nozzle being connected to a third supporting spring, the nozzle being elastically supported and connected to the inside of the vibrating rod via the third supporting spring, a compensating tube being sleeved in the nozzle, a transition inner tube being rotatably connected in the compensation tube, a nozzle being clamped in the port of the transition inner tube, and a spray hole being provided on the end face of the nozzle.

[0014] As a further description of the above technical solution:

[0015] A water wheel is mounted inside the adapter inner tube, the other end of the adapter inner tube is connected to a limiting plate, the other end surface of the limiting plate is sealed with a blocking plate, and the blocking plate is mounted in the nozzle through a bracket.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the compensation tube is provided with a slide groove, a slider is slidably connected in the slide groove, the end of the slider is connected to a first support spring, the slider is elastically supported and connected to the compensation tube through the first support spring, and the slider is connected to the inner wall of the nozzle.

[0018] As a further description of the above technical solution:

[0019] A limiting groove is provided on the surface of the vibration rod, and a limiting support assembly is connected to the corresponding limiting groove on the side end face of the first adapter seat. The limiting support assembly includes a limiting ring connected to the side end face of the first adapter seat, and a plurality of supporting holes in a circular array are provided on the limiting ring. A supporting shaft is sleeved in the supporting hole, and a second supporting spring is sleeved on the supporting shaft. The supporting shaft is elastically supported and connected to the outer wall of the limiting ring through the second supporting spring, and a spherical hoop is connected to the other end of the support shaft, and a limiting bead is sleeved in the spherical hoop, and the limiting bead is embedded in the limiting groove.

[0020] As a further description of the above technical solution:

[0021] The side end face of the first adapter seat is connected to two conveying components for conveying the vibration rod, and the conveying components include a conveying roller rollingly connected to the outer wall of the vibration rod, the inner side of the conveying roller is fitted with a connecting shaft, and the connecting shaft is rotatably connected to a connecting frame, the other end of the connecting frame is connected to the side end face of the first adapter seat, and the other end of the connecting shaft is fitted with a third gear, and the two third gears are meshed with each other.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In the present invention, a cleaning liquid for cleaning the first steel template and the second steel template is injected into the vibrating rod. As the cleaning liquid is continuously injected into the vibrating rod, the internal liquid pressure of the vibrating rod gradually increases. The nozzle gradually extends out under the push of the liquid pressure, and the third supporting spring is pulled to make it elastically deformed. After the nozzle is fully extended, the compensation tube slides on the surface of the slider through the slide groove, and the first supporting spring is pulled to make it elastically deformed. After the compensation tube is fully extended, the limit plate is separated from the blocking plate, and the cleaning liquid enters the adapter inner tube, and finally is sprayed out through the spray hole on the nozzle. The cleaning liquid flows in the adapter inner tube. During the process, the water-driven wheel will drive the rotation of the water-driven wheel, and the water-driven wheel will drive the nozzle to rotate, so that the spray angle of the spray hole can be continuously changed, which is beneficial to the multi-angle flushing of the first steel formwork and the second steel formwork, and in this process, the operation of the vibration rod must also be controlled. The multi-angle liquid flushing is combined with the vibration, so as to better realize the cleaning of the casting surface of the first steel formwork and the second steel formwork. After the cleaning is completed, continue to pour hot compressed air into the vibration rod to dry the first steel formwork and the second steel formwork, and then inject the release agent into the vibration rod, and spray the release agent on the first steel formwork and the second steel formwork.

[0024] 2. In the present invention, a dual-drive setting of a first dual-axis driver and a second dual-axis driver is adopted, so that the moving part can move freely inside the first track part or the second track part, so that the vibrating rod has a wide working coverage, high flexibility, and strong practicality to meet the construction requirements of variable-section tunnels. Standardization and modularization are achieved in engineering, which can be conveniently and flexibly disassembled and assembled, and used multiple times, greatly improving the reuse rate, thereby effectively solving the shortcomings of the prior art.

[0025] 3. In the present invention, the operation of the vibrating rod is controlled. The vibrating rod generates vibration during operation and directly acts on the concrete poured through the pouring window. Vibration makes the concrete densely combined, eliminates bubbles and honeycomb surfaces, and improves strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an underground mine variable-section lining trolley proposed by the present invention;

[0027] Figure 2 This is a schematic structural diagram of a concrete vibration assembly in a variable-section lining trolley for an underground mine proposed by the present invention;

[0028] Figure 3 This is a schematic structural diagram of a position limiting support assembly in a variable-section lining trolley for an underground mine proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a disassembled concrete vibration assembly in a variable-section lining trolley for underground mines proposed by the present invention;

[0030] Figure 5This is a structural schematic diagram from another perspective of a disassembled concrete vibration assembly in a variable-section lining trolley for underground mines proposed by the present invention;

[0031] Figure 6 The invention proposes a variable-section lining trolley for underground mines. Figure 5 The enlarged structural diagram at A in the middle;

[0032] Figure 7 This is a schematic structural diagram of an underground mine variable-section lining trolley proposed by the present invention from another perspective;

[0033] Figure 8 This is a schematic diagram of the structure of a disassembled flushing assembly in a variable-section lining trolley for an underground mine proposed by the present invention;

[0034] Fig. 9 The invention proposes a variable-section lining trolley for underground mines. Figure 8 The enlarged structural diagram at B in the middle;

[0035] Fig.10 The invention proposes a variable-section lining trolley for underground mines. Fig. 9 The enlarged structural diagram at C in the middle;

[0036] Fig.11 This is a schematic diagram of the disassembled structure of an underground mine variable-section lining trolley proposed by the present invention.

[0037] Legend:

[0038] 1. Lining trolley body; 2. Concrete vibration assembly; 201. First track member; 2011. Outer track; 2012. Inner track; 2013. U-shaped frame; 2014. Toothed panel; 2015. Limiting panel; 202. Second track member; 203. Moving member; 2031. First transfer seat; 2032. First dual-axis driver; 2033. First gear; 2034. Second transfer seat; 2035. Second dual-axis driver; 2036. Second gear; 2037. Transfer shaft; 2038. Transfer spring; 204. Decontamination sleeve; 205 , vibrating rod; 3, flushing assembly; 301, nozzle; 302, compensation tube; 303, adapter inner tube; 304, nozzle; 305, spray hole; 306, water-powered wheel; 307, limit plate; 308, blocking plate; 309, slider; 310, slide groove; 311, first supporting spring; 4, limit support assembly; 401, limit ring; 402, supporting shaft; 403, second supporting spring; 404, spherical hoop; 405, limit bead; 5, conveying assembly; 501, connecting shaft; 502, third gear; 503, conveying roller; 504, connecting frame. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Please see attached Figure 1 -Attached Fig.11 The present invention provides a technical solution: an underground mine variable-section lining trolley, comprising a lining trolley body 1, the lining trolley body 1 comprising a first steel template located at the highest point and two second steel templates located on both sides of the first steel template, the two second steel templates and the first steel template are provided with casting ports, the edges of the first steel template and the two second steel templates are connected with the same concrete vibration component 2, the concrete vibration component 2 comprises a first track member 201 connected to the edge of the first steel template and two second track members 202 respectively connected to the edges of the two second steel templates, a moving member 203 is meshed on the inner side of the first track member 201 and the two second track members 202, a decontamination sleeve 204 is sleeved on the inner side of the moving member 203, a vibrating rod 205 is sleeved on the inner side of the decontamination sleeve 204, and is used for compacting concrete on the casting surfaces of the first steel template and the two second steel templates.

[0041] Specifically, the first rail member 201 and the second rail member 202 have the same structure. The first rail member 201 includes an inner rail 2012 connected to the edge of the first steel template. An outer rail 2011 is arranged on the periphery of the inner rail 2012. The outer rail 2011 and the side end faces of the inner rail 2012 are connected with multiple U-shaped frames 2013 for supporting and fixing the outer rail 2011. The outer arc surface of the inner rail 2012 and the inner arc surface of the outer rail 2011 are both connected with a toothed panel 2014. The other end faces of the outer rail 2011 and the inner rail 2012 are both connected with a limiting panel 2015 for limiting and guiding the moving member 203.

[0042] Specifically, the moving member 203 includes a first adapter seat 2031 between the upper and lower toothed panels 2014, a first dual-axis driver 2032 is installed on the end surface of the first adapter seat 2031, and the two output shafts of the first dual-axis driver 2032 are both equipped with first gears 2033, and the two first gears 2033 are meshed with the upper and lower toothed panels 2014. The inner side of the other end of the first adapter seat 2031 is rotatably connected with a transfer shaft 2037, and the end of the transfer shaft 2037 is sleeved with a transfer spring 2038. The adapter shaft 2037 is rotatably connected to the inner side of the other end of the first adapter seat 2031 through the adapter spring 2038, and the other end of the adapter shaft 2037 is mounted with a second adapter seat 2034. The other end surface of the second adapter seat 2034 is equipped with a second dual-axis driver 2035. The two output shafts of the second dual-axis driver 2035 are both equipped with second gears 2036. The two second gears 2036 are meshed with the upper and lower toothed panels 2014, and the dirt removal sleeve 204 is mounted on the inner side of the first adapter seat 2031.

[0043] Specifically, a plurality of telescopic holes are provided on the vibration rod 205, and a flushing assembly 3 is sleeved in each of the telescopic holes. The flushing assembly 3 includes a nozzle 301 sleeved in the telescopic hole, and a third supporting spring is connected to the end of the nozzle 301. The nozzle 301 is elastically supported and connected to the inside of the vibration rod 205 through the third supporting spring. A compensation tube 302 is sleeved in the nozzle 301, and a transfer inner tube 303 is rotatably connected in the compensation tube 302. A nozzle 304 is clamped in the port of the transfer inner tube 303, and a spray hole 305 is provided on the end face of the nozzle 304.

[0044] Specifically, a water wheel 306 is mounted inside the adapter inner tube 303, and the other end of the adapter inner tube 303 is connected to a limit plate 307. The other end surface of the limit plate 307 is sealed and connected to a blocking plate 308. The blocking plate 308 is mounted in the nozzle 301 through a bracket.

[0045] Specifically, a slide groove 310 is opened on the outer wall of the compensation tube 302, and a slider 309 is slidably connected in the slide groove 310. The end of the slider 309 is connected to a first supporting spring 311. The slider 309 is elastically supported and connected to the compensation tube 302 through the first supporting spring 311, and the slider 309 is connected to the inner wall of the nozzle 301.

[0046] Specifically, a limiting groove is provided on the surface of the vibration rod 205, and the side end face of the first adapter 2031 is connected to the limiting support component 4 with the corresponding limiting groove. The limiting support component 4 includes a limiting ring 401 connected to the side end face of the first adapter 2031, and a plurality of supporting holes in a ring array are provided on the limiting ring 401. A supporting shaft 402 is sleeved in the supporting hole, and a second supporting spring 403 is sleeved on the supporting shaft 402. The support shaft 402 is elastically supported and connected to the outer wall of the limiting ring 401 through the second supporting spring 403. The other end of the support shaft 402 is connected to a spherical hoop 404, and a limiting bead 405 is sleeved in the spherical hoop 404, and the limiting bead 405 is embedded in the limiting groove.

[0047] Specifically, the side end face of the first adapter seat 2031 is connected to two conveying components 5 for conveying the vibration rod 205, and the conveying component 5 includes a conveying roller 503 which is rollingly connected to the outer wall of the vibration rod 205, and the inner side of the conveying roller 503 is provided with a connecting shaft 501, and the connecting shaft 501 is rotatably connected to a connecting frame 504, and the other end of the connecting frame 504 is connected to the side end face of the first adapter seat 2031, and the other end of the connecting shaft 501 is provided with a third gear 502, and the two third gears 502 are meshed with each other.

[0048] Working principle, when using:

[0049] During the lining construction process, the automatic pouring lining trolley body 1 is in place, and the concrete tank truck and the drag pump are used to feed the concrete. The built-in concrete distribution system of the automatic pouring lining trolley sequentially transports the concrete to each pouring window on the second steel formwork and the first steel formwork, and controls the first double-axis driver 2032 and the second double-axis driver 2035 to operate. The first double-axis driver 2032 drives the two first gears 2033 to roll between the upper and lower toothed panels 2014 and generate displacement. The second double-axis driver 2035 drives the two second gears 2036 to roll between the upper and lower toothed panels 2014 and generate displacement. The lower two toothed panels 2014 roll between each other, and the first dual-axis driver 2032 is displaced, so that the first adapter 2031 and the second adapter 2034 can be driven to move along the first track member 201 or the two second track members 202, and the moving member 203 is controlled to move to the corresponding casting window, and then the vibrating rod 205 is controlled to operate. The vibrating rod 205 generates vibration during the working process and directly acts on the concrete poured through the casting window, so that the concrete is densely combined through vibration, bubbles and honeycomb pockmarks are eliminated, and the strength is improved;

[0050] Since the first steel template and the two second steel templates are in a connection relationship and need to be adjusted accordingly according to the shape of the underground mine tunnel, the center of the first steel template and the two second steel templates do not completely coincide. Accordingly, driven by the two second steel templates, the center of the two second rail members 202 is offset relative to the first rail member 201. When the moving member 203 moves to the junction of the first rail member 201 and the second rail member 202, under the action of the first rail member 201 and the second rail member 202, the first adapter seat 2031 and the second adapter seat 2034 change their angles around the adapter shaft 2037, and in this process, the adapter spring 2038 is twisted to cause it to undergo elastic deformation. At the same time, a dual-drive setting of the first dual-axis driver 2032 and the second dual-axis driver 2035 is adopted, so that the moving member 203 can move freely inside the first rail member 201 or the second rail member 202, so that the vibrating rod 205 has a wide working coverage, high flexibility, and strong practicality to meet the requirements of variable-section tunnel construction. Standardization and modularization are achieved in engineering, which can be easily and flexibly disassembled and assembled, and used multiple times, greatly improving the reuse rate, thus effectively solving the shortcomings of the existing technology;

[0051] When pouring at the pouring window on the top of the first steel formwork, a driving device is installed on one of the connecting shafts 501, and the driving device is controlled to operate. The driving device drives the connecting shaft 501, and the connecting shaft 501 simultaneously drives the third gear 502 and the conveying roller 503 connected thereto to rotate. The third gear 502 drives another conveying roller 503 to rotate by using another connecting shaft 501 through another third gear 502. The two conveying rollers 503 roll on the vibrating rod 205 at the same time, and the rotation directions of the two conveying rollers 503 are opposite to each other, so that the vibrating rod 205 can be slowly pushed to move, so that the vibrating rod 205 moves out of the pouring surface on the first steel formwork;

[0052] After the concrete is completely solidified, the full-automatic lining trolley body 1 is controlled to be demoulded. After the demoulding is completed, the first steel template and the two second steel templates need to be demoulded and sprayed with a demoulding agent. The driving device is controlled again to push the vibrating rod 205 in the opposite direction, and the cleaning liquid for cleaning the first steel template and the second steel template is injected into the vibrating rod 205. As the cleaning liquid is continuously injected into the vibrating rod 205, the internal liquid pressure of the vibrating rod 205 gradually increases. Under the push of the hydraulic pressure, the nozzle 301 gradually extends out, and pulls the third supporting spring to make it elastically deformed. After the nozzle 301 is completely extended, the compensation tube 302 slides on the surface of the slider 309 through the slide groove 310, and pulls the first supporting spring 311 to make it elastically deformed. After the compensation tube 302 is fully extended, the limit plate 307 is separated from the blocking plate 308. The cleaning liquid enters the adapter inner tube 303 and is finally sprayed out through the spray hole 305 on the nozzle 304. The cleaning liquid will drive the water wheel 306 to rotate during the flow in the adapter inner tube 303. The water wheel 306 drives the nozzle 304 to rotate, thereby continuously changing the spray angle of the spray hole 305, which is beneficial to multi-angle flushing of the first steel formwork and the second steel formwork. In this process, the operation of the vibration rod 205 needs to be controlled. The multi-angle liquid flushing is combined with the vibration, so as to better realize the cleaning of the casting surface of the first steel formwork and the second steel formwork. After cleaning, continue to pour hot compressed air into the vibration rod 205 to dry the first steel formwork and the second steel formwork, and then inject the release agent into the vibration rod 205, and spray the release agent on the first steel formwork and the second steel formwork.

[0053] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A variable-section lining trolley for an underground mine, comprising a lining trolley body (1), wherein the lining trolley body (1) comprises a first steel template located at the highest point and two second steel templates located on both sides of the first steel template, wherein the two second steel templates and the first steel template are provided with casting ports, wherein: The edges of the first steel formwork and the two second steel formworks are connected to a same concrete vibration assembly (2), the concrete vibration assembly (2) comprising a first track member (201) connected to the edge of the first steel formwork and two second track members (202) respectively connected to the edges of the two second steel formworks, a moving member (203) is meshed on the inner sides of the first track member (201) and the two second track members (202), a dirt removal sleeve (204) is sleeved on the inner side of the moving member (203), and a vibrating rod (205) is sleeved on the inner side of the dirt removal sleeve (204) for compacting concrete on the casting surfaces of the first steel formwork and the two second steel formworks; The vibrating rod (205) is provided with a plurality of telescopic holes, each of which is sleeved with a flushing assembly (3), the flushing assembly (3) comprising a nozzle (301) sleeved in the telescopic hole, the end of the nozzle (301) being connected to a third supporting spring, the nozzle (301) being elastically supported and connected to the inside of the vibrating rod (205) via the third supporting spring, a compensation tube (302) being sleeved in the nozzle (301), a transfer inner tube (303) being rotatably connected in the compensation tube (302), a nozzle (304) being clamped in the port of the transfer inner tube (303), and a nozzle (305) being provided on the end surface of the nozzle (304); A water wheel (306) is sleeved inside the adapter inner tube (303); the other end of the adapter inner tube (303) is connected to a limit plate (307); the other end surface of the limit plate (307) is sealingly connected to a blocking plate (308); the blocking plate (308) is sleeved inside the nozzle (301) via a bracket; The outer wall of the compensation tube (302) is provided with a sliding groove (310), a sliding block (309) is slidably connected in the sliding groove (310), an end of the sliding block (309) is connected to a first supporting spring (311), the sliding block (309) is elastically supported and connected to the compensation tube (302) via the first supporting spring (311), and the sliding block (309) is connected to the inner wall of the nozzle (301).

2. The underground mine variable cross-section lining trolley according to claim 1, characterized in that: The first track member (201) and the second track member (202) have the same structure. The first track member (201) comprises an inner track (2012) connected to the edge of the first steel template. An outer track (2011) is arranged on the periphery of the inner track (2012). The outer track (2011) and the side end surfaces of the inner track (2012) are connected to a plurality of U-shaped frames (2013) for supporting and fixing the outer track (2011). The outer arc surface of the inner track (2012) and the inner arc surface of the outer track (2011) are both connected to a toothed panel (2014). The other end surfaces of the outer track (2011) and the inner track (2012) are both connected to a limiting panel (2015) for limiting and guiding the moving member (203).

3. The underground mine variable cross-section lining trolley according to claim 1, characterized in that: The moving member (203) comprises a first adapter seat (2031) between the upper and lower toothed panels (2014); a first dual-axis driver (2032) is installed on the end surface of the first adapter seat (2031); two output shafts of the first dual-axis driver (2032) are both sleeved with first gears (2033); the two first gears (2033) are meshed with the upper and lower toothed panels (2014); a transfer shaft (2037) is rotatably connected to the inner side of the other end of the first adapter seat (2031); a transfer spring (2038) is sleeved on the end of the transfer shaft (2037); The adapter shaft (2037) is rotatably connected to the inner side of the other end of the first adapter seat (2031) via an adapter spring (2038); the other end of the adapter shaft (2037) is sleeved with a second adapter seat (2034); the other end surface of the second adapter seat (2034) is mounted with a second dual-axis driver (2035); the two output shafts of the second dual-axis driver (2035) are sleeved with second gears (2036); the two second gears (2036) are meshed with the upper and lower toothed panels (2014); and the dirt removal sleeve (204) is sleeved on the inner side of the first adapter seat (2031).

4. The underground mine variable cross-section lining trolley according to claim 3, characterized in that: A limiting groove is provided on the surface of the vibration rod (205); a side end surface of the first adapter seat (2031) is connected to a limiting support assembly (4) corresponding to the limiting groove; the limiting support assembly (4) comprises a limiting ring (401) connected to the side end surface of the first adapter seat (2031); a plurality of supporting holes in a ring array are provided on the limiting ring (401); a supporting shaft (402) is sleeved in the supporting hole; a second supporting spring (403) is sleeved on the supporting shaft (402); the supporting shaft (402) is elastically supported and connected to the outer wall of the limiting ring (401) via the second supporting spring (403); the other end of the supporting shaft (402) is connected to a spherical hoop (404); a limiting bead (405) is sleeved in the spherical hoop (404); and the limiting bead (405) is embedded in the limiting groove.

5. The underground mine variable cross-section lining trolley according to claim 4, characterized in that: The side end surface of the first adapter seat (2031) is connected to two conveying components (5) for conveying the vibration rod (205), and the conveying components (5) include a conveying roller (503) which is rollingly connected to the outer wall of the vibration rod (205), and the inner side of the conveying roller (503) is sleeved with a connecting shaft (501), and the connecting shaft (501) is rotatably connected to a connecting frame (504), and the other end of the connecting frame (504) is connected to the side end surface of the first adapter seat (2031), and the other end of the connecting shaft (501) is sleeved with a third gear (502), and the two third gears (502) are meshed with each other.

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