A modular tunnel belt conveyor

Abstract

The present invention belongs to the technical field of belt conveyors, and specifically relates to a modular tunnel belt conveyor, comprising a drive device, a middle transfer module, a tail roller frame, and a belt running on the drive device, the middle transfer module, and the tail roller frame; wherein the tail roller frame, the middle transfer module, and the drive device are arranged in sequence along the conveying direction, and an intermediate frame is provided between them, and the drive device comprises a tensioning module, a control module, a protective net assembly, a towing trolley, a drive module, a redirecting roller group, and a return roller group. The present invention utilizes a modular design and is easy to transport. After being debugged above ground, the modular equipment is transported to the underground as a whole, and is easy to install and use. The belt tension can be automatically adjusted and a safe environment can be provided for maintenance personnel to perform inspections. The new middle transfer method provides driving force for the secondary transfer of materials in the middle of the belt conveyor, reducing the belt strength. The impact-resistant tail roller frame can reduce belt wear and meet the needs of tail material drop.

Description

Technical Field

[0001] The invention belongs to the technical field of belt conveyors, and in particular relates to a modular tunnel belt conveyor. Background Art

[0002] Full-face tunnel boring machine (TBM) excavation technology is commonly used in the construction of railway and highway tunnels, urban subways, and coal transportation in coal mine tunnels. To improve excavation efficiency, tunnel belt conveyor slag discharge or coal transportation technology can be used in conjunction with it.

[0003] At present, underground telescopic belt conveyors face many problems: the overall equipment is not easy to transport, the installation workload is large, and it is inconvenient to use; the tension adjustment cannot be fully automated and requires manual adjustment, which is labor-intensive and inaccurate, and can easily cause the belt conveyor to slip; when the winch fails, maintenance is difficult and there is a certain degree of danger; when installing and disassembling the guard net, many bolts need to be unscrewed, which is labor-intensive and inconvenient; the towing trolley is easy to derail, and materials are easy to accumulate on the track; the drive device occupies too much area, affecting the space of the channel and making it inconvenient for people to pass through; for long-distance belt conveyors, the belt strength is high and the belt cleaning is difficult; the standard section components are too fragmented, making transportation difficult, the installation bolts are easy to lose, the installation is difficult, and the installation workload is large; in most cases, the tail drop point is too close to the tail roller, and the material is discharged in the belt transition section, which can easily cause belt wear and roller damage.

[0004] For this reason, a modular tunnel belt conveyor is urgently needed. Summary of the Invention

[0005] In response to the above-mentioned defects in the prior art, the present invention provides a modular tunnel belt conveyor, comprising a drive device, a middle transfer module, a tail roller frame, and a belt running on the drive device, the middle transfer module, and the tail roller frame; wherein the tail roller frame, the middle transfer module, and the drive device are arranged in sequence along the conveying direction, with an intermediate frame provided therebetween; the drive device comprises a tensioning module, a control module, a protective net assembly, a towing trolley, a drive module, a redirecting roller assembly, and a return roller assembly;

[0006] The tensioning module is arranged at the head of the driving device and is used to tighten the tape;

[0007] The control module is arranged in front of the control module and is used to control the tensioning module to adjust the tension of the tape;

[0008] The protective net assembly is arranged on the outside of the drive device to provide protection for equipment and personnel;

[0009] The towing device is arranged in the tape storage structure, and the number of the towing device is multiple, and is used to support the adhesive tape, and the tape storage is used to store and release the adhesive tape;

[0010] The driving module is arranged at the tail of the driving device and is used to drive the belt to run;

[0011] The redirecting roller group includes a front redirecting roller and a rear redirecting roller arranged at the head and tail ends of the driving device, and is used to provide guidance for the adhesive belt;

[0012] The return roller group is set at the bottom of the driving device to provide guidance and support for the return belt;

[0013] The middle transfer module is used to drive the belt and clean the belt;

[0014] The tail roller rack is used for receiving materials.

[0015] Optionally, the tensioning module includes a tensioning vehicle, a maintenance winch assembly, a main winch assembly, a first steel wire rope and a second steel wire rope, wherein the front redirecting drum is arranged on the tensioning vehicle, and the tape is wound on the front redirecting drum; a wheel is provided at the bottom of the tensioning vehicle, a wire rope wheel is provided at the front end of the tensioning vehicle, the maintenance winch assembly is provided in front of the tensioning vehicle, the maintenance winch assembly includes a first frame fixed to the ground, a maintenance winch, a wire rope redirecting wheel and a force sensor are provided on the first frame, the maintenance winch includes a first wire rope drum and a first motor for driving the first wire rope drum to rotate, and a force sensor The sensor is fixed to the first frame by a fixed pin shaft, the main winch assembly is arranged in front of the maintenance winch assembly, the main winch assembly includes a second frame fixed to the ground, the second frame is provided with a main winch, the main winch includes a second wire rope drum and a second motor for driving the second wire rope drum to rotate, one end of the first wire rope is wound around the first wire rope drum, and the other end passes around the wire rope redirecting wheel and is fixedly connected to one end of the force sensor, one end of the second wire rope is wound around the second wire rope drum, and the other end passes around the wire rope wheel and is fixedly connected to the other end of the force sensor.

[0016] Optionally, the control module includes a flow sensor, a speed sensor and a PLC controller; the flow sensor is communicatively connected to the PLC controller for detecting the flow of material on the belt; the speed sensor is communicatively connected to the PLC controller for detecting the speed of the belt; the PLC controller is communicatively connected to the second motor of the main winch, and the PLC controller is communicatively connected to the controller of the main control room.

[0017] Optionally, the protective net assembly includes columns fixed on the main frame and a first protective net, and the number of columns is multiple, and the multiple columns are evenly arranged along the left and right sides of the driving device. Two cross bars are fixed between two adjacent columns, and the two cross bars are divided into an upper cross bar and a lower cross bar, and the upper cross bar and the lower cross bar are respectively located at the upper and lower ends of the columns. The first protective net is arranged between the two columns, and an upper hook adapted to the upper cross bar and a lower hook adapted to the lower cross bar are provided on the back of the first protective net. The upper hook is rotatably connected to the upper end of the first protective net through a rotating pin, and the other end of the rotating pin passes through the front of the first protective net and is fixed with a nut. A block is provided on one side of the upper hook, and the lower hook is fixedly installed at the lower end of the first protective net.

[0018] Optionally, the towing device includes a towing trolley and tubular tracks arranged on the left and right sides of the towing trolley, a winding roller for winding the tape is provided in the tape storage bin, and a walking wheel group and an anti-rollover wheel group adapted to the track are respectively provided at the bottom and side of the towing trolley.

[0019] Specifically, the rails are connected by flanges, which are then fixed together by locating pins. The locating pins have hexagonal square heads for easy wrench operation. The locating pins are threaded, and the flanges have matching threaded holes. The pins are terminated with a tapered head. Adjustment bolts are also provided on the anti-rollover wheel assembly to ensure smooth commissioning.

[0020] Optionally, the drive module includes a first drive roller, a first drive motor, a reducer and a drum coupling, and the tape is wound on the first drive roller, roller discs are provided at both ends of the first drive roller, the output shaft of the first drive motor is transmission-connected to the input shaft of the reducer, the output shaft of the reducer is fixedly connected to the roller disc of the first drive roller through the drum coupling, and the first drive motor and the first drive roller are both located on the same side of the reducer.

[0021] Optionally, the central transfer module includes a mounting frame, a sweeper arranged in the middle of the mounting frame, a second drive roller arranged at the front and rear ends of the mounting frame, and a second drive motor for driving the second drive roller to rotate, and the tape is wound around the second drive roller, a protective cover is provided on the top of the mounting frame, and a second protective net is provided at the bottom of the mounting frame, and the sweeper is used to clean the tape.

[0022] The cam is connected to the upper and lower frames by the second connecting member, and the cam is connected to the lower frame by the third connecting member, and the cam is connected to the lower frame by the third connecting member. The right two sides are set as the second upper roller; the lower roller group includes two lower rollers arranged in a V shape; the first connecting component includes a first pin shaft, and the ends of the U-shaped pipe seat and the longitudinal beam are respectively provided with a first pin shaft hole and a second pin shaft hole, and the first pin shaft hole and the second pin shaft hole are both adapted to the first pin shaft, and the first pin shaft is movably connected to the upper part of the vertical beam through the first chain; the second connecting component includes a hook arranged at the outer end of the second upper roller, and the hook matches the shape of the longitudinal beam, a slot is provided on the hook, and a convex column adapted to the slot is also provided on the longitudinal beam, and a handle is installed on the hook; the third connecting component includes an angle steel roller frame and a second pin shaft, the angle steel roller frame includes a first side plate and a second side plate, the first side plate is fixedly connected to the vertical beam through the second pin shaft, and the second pin shaft is movably connected to the lower part of the vertical beam through the second chain, and a roller groove adapted to the roller shaft of the lower roller is provided on the second side plate.

[0023] Optionally, the tail roller frame includes a frame, the bottom of the frame is fixed to the ground by support legs, and a bracket structure is provided at the drop point on the top of the frame, the bracket structure is used to support the tape, the bracket structure includes a V-shaped support frame fixed to the frame and a support assembly provided on the V-shaped support frame, and the cross-section of the support assembly matches the V-shaped support frame, the height of the support assembly gradually decreases along the conveying direction, the support assembly is composed of multiple round steels, and the spacing between two adjacent round steels gradually increases along the end away from the frame, the lower end of the round steel is fixed on the V-shaped support frame, and the higher end of the round steel is fixed on the frame, and baffle plates are provided on both sides of the left and right sides of the bracket structure.

[0024] The present invention also includes other components that enable a modular tunnel belt conveyor to operate normally, which are conventional technical means in the art. In addition, the devices or components not limited in the present invention all adopt conventional technical means in the art.

[0025] The working principle and beneficial effects of the present invention are:

[0026] 1. Through the design of the tensioning module, during normal operation, the force sensor is fixed to the first frame via a fixed pin. The force sensor is used to detect the tension of the second wire rope. The tension generated by the second wire rope acts on the first frame of the maintenance winch module, and the maintenance winch and its first wire rope drum are unloaded. When the second motor of the main winch fails, the fixed pin on the force sensor is removed. Since the two ends of the force sensor are connected to the first wire rope and the second wire rope respectively, the force will be transferred to the first wire rope and the first wire rope drum. By controlling the first motor of the maintenance winch to drive the first wire rope drum to rotate, the first wire rope is released, and the tension of the second wire rope is released. At this time, the staff can enter the area for maintenance.

[0027] By adding a maintenance winch to the maintenance winch module, and connecting the first steel wire rope of the maintenance winch to the second steel wire rope through a force sensor, and at the same time the force sensor is detachably fixed to the first frame of the maintenance winch module through a fixed pin shaft, when the second motor of the main winch fails, by removing the fixed pin shaft, the force sensor is used as the force transmission medium between the second steel wire rope and the first steel wire rope, thereby releasing the tension. At the same time, the force sensor can be used to ensure whether the tension is completely released, thereby effectively protecting the personal safety of the staff.

[0028] 2. Through the design of the control module, during tunnel excavation projects, as the accompanying belt conveyor needs to be continuously lengthened, the tension must be adjusted accordingly. By analyzing the flow sensor, speed sensor, and excavation distance data transmitted from the main control room, the PLC controller adjusts the tension in real time to ensure that the belt conveyor does not slip and operates normally. This is fully automated, eliminating the need for manual adjustment.

[0029] 3. Through the design of the protective net assembly, when the equipment needs to be maintained, you only need to use a wrench to turn the nut on the front of the first protective net to disengage the upper hook from the upper crossbar, and then disengage the lower hook from the lower crossbar. The first protective net can be removed from the two crossbars without using any screws, only using a hook structure, which is convenient for disassembly and assembly and saves time.

[0030] 4. The design of the towing device utilizes a circular tube track structure, which provides uniform force distribution and prevents material accumulation on the track, thus preventing derailment accidents. The towing trolley's running wheels and anti-rollover wheels are fully compatible with the track, ensuring smoother sliding. Furthermore, the anti-rollover wheels are adjustable, facilitating on-site commissioning. Furthermore, the flange connection between the tracks utilizes a specially designed locating pin. This pin can be inserted into the flange by tightening the thread, facilitating installation while ensuring the overall mounting dimensions of the entire frame.

[0031] 5. Through the design of the drive module, the bearing seat at one end of the first drive roller is removed, and the output shaft of the reducer is directly connected to the roller disc of the first drive roller through a drum coupling. The first drive motor and the first drive roller are both located on the same side of the reducer, which occupies a small space. The entire drive module can be arranged inside the belt conveyor without taking up aisle space.

[0032] 6. Through the design of the middle transfer module, on the one hand, the mounting frame, cleaner, second drive roller, second drive motor, guard, second protective net and detection switch are integrated into one module, which is convenient for on-site installation and maintenance; on the other hand, the second drive roller and the second drive motor increase the driving force for the middle part of the belt conveyor, provide secondary transfer materials, and reduce the belt strength. The integrated cleaner can clean the belt.

[0033] 7. Through the design of the intermediate frame, the traditional bolt connection method is eliminated, and pins are used to connect the longitudinal beam and the U-shaped pipe seat, and between the angle steel roller frame and the vertical beam. The pins are connected to the main equipment with chains, which is convenient for disassembly and assembly and avoids the trouble caused by the loss of accessories during on-site installation. Through the design of the second connecting component and the third connecting component, the upper roller group and the longitudinal beam, and the lower roller group and the angle steel roller frame are all detachable. When the belt deviates, it is convenient for the staff to adjust the position of the upper roller group and the lower roller group to adjust the belt deviation.

[0034] 8. Through the design of the tail roller frame, a support assembly composed of multiple round steels is used at the drop point of the roller frame to replace the traditional buffer roller to provide support for the belt. It is arranged according to the belt forming and plays the role of a buffer bed without wearing the belt. Compared with ordinary buffer rollers, it has a longer service life and basically does not need to be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below with reference to the accompanying drawings and examples.

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0037] Figure 2 It is a schematic diagram of the partial structure of the driving device of the present invention.

[0038] Figure 3 It is a structural schematic diagram of the tensioning module of the present invention.

[0039] Figure 4 Schematic diagram of the structure of the control module of the present invention.

[0040] Figure 5 It is a schematic diagram of the front structure of the protective net assembly of the present invention.

[0041] Figure 6 for Figure 5 Enlarged schematic diagram of the structure of part A in the middle.

[0042] Figure 7 It is a schematic diagram of the back structure of the protective net assembly of the present invention.

[0043] Figure 8 for Figure 7 Enlarged schematic diagram of the structure of part B in the middle.

[0044] Figure 9 It is a schematic diagram of the three-dimensional structure of the towing device of the present invention.

[0045] Figure 10 It is a partial structural diagram of the traveling wheel set and the anti-rollover wheel set of the present invention.

[0046] Figure 11 It is a schematic diagram of the three-dimensional structure of the driving module of the present invention.

[0047] Figure 12 It is a front cross-sectional view of the driving module of the present invention.

[0048] Figure 13 It is a structural schematic diagram of the middle transfer module of the present invention.

[0049] Figure 14 It is a schematic diagram of the three-dimensional structure of the intermediate frame of the present invention.

[0050] Figure 15 for Figure 14 Enlarged schematic diagram of the structure of the middle C section.

[0051] Figure 16 for Figure 14 Enlarged schematic diagram of the structure of the middle D part.

[0052] Figure 17 for Figure 14 Enlarged schematic diagram of the structure of the middle E part.

[0053] Figure 18 It is a schematic diagram of the three-dimensional structure of the tail drum frame of the present invention.

[0054] In the figure: 1. Drive device, 11. Tensioning module, 111. Tensioning vehicle, 1111. Wire rope pulley, 112. Maintenance winch assembly, 1121. First frame, 1122. Maintenance winch, 11221. First wire rope drum, 11222. First motor, 1123. Wire rope reversing pulley, 1124. Force sensor, 113. Main winch assembly, 1131. Second frame, 1132. Main winch, 11321. Second wire rope drum, 11322. Second motor, 114. First wire rope, 115. Second wire rope, 12. Control module, 121. Flow sensor, 122. Speed Sensor, 123. PLC controller, 124. Controller of the main control room, 13. Protective net assembly, 131. Column, 132. First protective net, 133. Upper crossbar, 134. Lower crossbar, 135. Upper hook, 136. Lower hook, 137. Nut, 138. Stopper, 14. Towing device, 141. Belt storage bin, 1411. Winding roller, 142. Towing trolley, 1421. Travel wheel set, 1422. Anti-rollover wheel set, 14221. Adjustment bolt, 143. Track, 15. Drive module, 151. First drive roller, 1511. Roller receiving plate, 152. First drive motor, 1 53. Reducer, 154. Drum coupling, 16. Redirection roller assembly, 161. Front redirection roller, 162. Rear redirection roller, 17. Return roller assembly, 2. Middle transfer module, 21. Mounting frame, 22. Sweeper, 23. Second drive roller, 25. Guard, 26. Second protective net, 3. Tail roller frame, 31. Frame, 311. Bracket structure, 3111. V-shaped support frame, 3112. Support assembly, 31121. Round steel, 312. Material stop plate, 4. Adhesive tape, 5. Intermediate frame, 51. Fixed frame, 511. Longitudinal beam, 512. H frame, 5121. Vertical beam, 5122. Cross beam, 5 123. Support leg, 5124. U-shaped pipe seat, 52. Hanging roller assembly, 521. Upper roller group, 5211. First upper roller, 5212. Second upper roller, 522. Lower roller group, 5221. Lower roller, 53. First connecting assembly, 531. First pin, 532. First chain, 54. Second connecting assembly, 541. Hook, 5411. Slot, 5412. Boss, 5413. Handle, 55. Third connecting assembly, 551. Angle steel roller frame, 5511. First side plate, 5512. Second side plate, 55121. Roller groove, 552. Second pin, 553. Second chain. DETAILED DESCRIPTION

[0055] The present invention is described below in conjunction with the accompanying drawings and specific embodiments of the present invention. The description herein is only used to explain the present invention and is not intended to limit the present invention. Based on the embodiments of the present invention, any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without creative work based on all other embodiments obtained in the present invention should be included in the scope of protection of the present invention.

[0056] Example

[0057] like Figure 1-2 As shown, the present invention provides a modular tunnel belt conveyor, comprising a drive device 1, a middle transfer module 2, a tail roller frame 3, and an adhesive belt 4 running on the drive device 1, the middle transfer module 2, and the tail roller frame 3; wherein the tail roller frame 3, the middle transfer module 2, and the drive device 1 are arranged in sequence along the conveying direction, with an intermediate frame 5 provided therebetween; the drive device 1 includes a tensioning module 11, a control module 12, a protective net assembly 13, a towing trolley 142, a drive module 15, a redirecting roller assembly 16, and a return roller assembly 17;

[0058] The tensioning module 11 is provided at the head of the driving device 1 and is used to tighten the adhesive tape 4;

[0059] The control module 12 is provided in front of the control module 12 and is used to control the tensioning module 11 to adjust the tension of the tape 4;

[0060] The protective net assembly 13 is arranged outside the driving device 1 to provide protection for equipment and personnel;

[0061] The traction device 14 is arranged in the tape storage bin 141 structure, and the number of the traction device 14 is multiple, and is used to support the adhesive tape. The tape storage bin 141 is used to store and release the adhesive tape 4;

[0062] The driving module 15 is provided at the rear of the driving device 1 and is used to drive the tape 4 to run;

[0063] The redirecting roller group 16 includes a front redirecting roller 161 and a rear redirecting roller 162 provided at both ends of the driving device 1, and is used to provide guidance for the adhesive tape 4;

[0064] The return roller group 17 is provided at the bottom of the driving device 1 and is used to provide guidance and support for the return belt 4;

[0065] The middle transfer module 2 is used to drive the belt 4 to run and clean the belt 4;

[0066] The tail roller frame 3 is used for receiving materials.

[0067] Combine Figure 3As shown, the tensioning module 11 includes a tensioning vehicle 111, a maintenance winch assembly 112, a main winch assembly 113, a first wire rope 114 and a second wire rope 115, wherein a front redirecting drum 161 is provided on the tensioning vehicle 111, and the adhesive tape 4 is wound on the front redirecting drum 161; a wheel is provided at the bottom of the tensioning vehicle 111, a wire rope pulley 1111 is provided at the front end of the tensioning vehicle 111, and the maintenance winch assembly 112 is provided in front of the tensioning vehicle 111, and the maintenance winch assembly 112 includes a first frame 1121 fixed to the ground, a maintenance winch 1122, a wire rope redirecting pulley 1123 and a force sensor 1124 are provided on the first frame 1121, and the maintenance winch 1122 includes a first wire rope drum 11221 and a first motor 11222 for driving the first wire rope drum 11221 to rotate. The force sensor 1124 is fixed to the first frame 1121 by a fixed pin shaft, and the main winch assembly 113 is arranged in front of the maintenance winch assembly 112. The main winch assembly 113 includes a second frame 1131 fixed to the ground, and the second frame 1131 is provided with a main winch 1132. The main winch 1132 includes a second wire rope drum 11321 and a second motor 11322 for driving the second wire rope drum 11321 to rotate. One end of the first wire rope 114 is wound around the first wire rope drum 11221, and the other end passes around the wire rope redirecting wheel 1123 and is fixedly connected to one end of the force sensor 1124. One end of the second wire rope 115 is wound around the second wire rope drum 11321, and the other end passes around the wire rope wheel 1111 and is fixedly connected to the other end of the force sensor 1124.

[0068] Combine Figure 4 As shown, the control module 12 includes a flow sensor 121, a speed sensor 122 and a PLC controller 123; the flow sensor 121 is communicated with the PLC controller 123 for detecting the flow of material on the belt 4; the speed sensor 122 is communicated with the PLC controller 123 for detecting the speed of the belt 4; the PLC controller 123 is communicated with the second motor 11322 of the main winch 1132, and the PLC controller 123 is communicated with the controller 124 of the main control room.

[0069] Combine Figure 5-8As shown, the protective net assembly 13 includes a column 131 fixed on the main frame and a first protective net 132. The number of the columns 131 is multiple, and the multiple columns 131 are evenly arranged along the left and right sides of the driving device 1. Two cross bars are fixed between two adjacent columns 131. The two cross bars are divided into an upper cross bar 133 and a lower cross bar 134, and the upper cross bar 133 and the lower cross bar 134 are respectively located at the upper and lower ends of the columns 131. The first protective net 132 is arranged between the two columns 131. The back of the first protective net 132 is provided with an upper hook 135 adapted to the upper cross bar 133 and a lower hook 136 adapted to the lower cross bar 134. The upper hook 135 is rotatably connected to the upper end of the first protective net 132 by a rotating pin, and the other end of the rotating pin passes through the front of the first protective net 132 and is fixed with a nut 137. A stop block 138 is provided on one side of the upper hook 135, and the lower hook 136 is fixedly installed at the lower end of the first protective net 132.

[0070] Combine Figure 9-10 As shown, the towing device 14 includes a towing trolley 142 and a tubular track 143 arranged on the left and right sides of the towing trolley 142, a winding roller 1411 for winding the tape 4 is provided in the tape storage bin 141, and a walking wheel group 1421 and an anti-rollover wheel group 1422 adapted to the track 143 are respectively provided below and on the side of the towing trolley 142.

[0071] Since the belt conveyor is used in conjunction with the tunnel boring machine, when the front tunnel boring machine is excavating, the belt conveyor at the rear needs to be extended. At this time, the belt storage bin 141 is needed to unload the belt, and the rear redirecting roller 162 drives the towing trolley 142 toward the tail end of the driving device 1 through a chain. When the adhesive tape 4 in the belt storage bin 141 is exhausted, all equipment stops, and then a roll of adhesive tape 4 is transported in. At this time, the belt storage bin 141 is needed to store the adhesive tape 4, and the front redirecting roller 161 drives the towing trolley 142 toward the head end of the driving device 1 through a chain.

[0072] As can be understood, rails 143 are connected to each other via flanges, which are then fixed together by locating pins. The locating pins have hexagonal square heads for easy wrench operation. The locating pins are threaded, and the flanges have threaded holes that match the threads. The ends of the locating pins have tapered ends. The anti-rollover wheel assembly 1422 is also equipped with adjustment bolts 14221, which can be adjusted to ensure smooth commissioning.

[0073] Combine Figure 11-12As shown, the drive module 15 includes a first drive roller 151, a first drive motor 152, a reducer 153 and a drum coupling 154, and the tape 4 is wound on the first drive roller 151. Both ends of the first drive roller 151 are provided with roller receiving discs 1511. The output shaft of the first drive motor 152 is transmission-connected to the input shaft of the reducer 153. The output shaft of the reducer 153 is fixedly connected to the roller receiving disc 1511 of the first drive roller 151 through the drum coupling 154. The first drive motor 152 and the first drive roller 151 are both located on the same side of the reducer 153.

[0074] Combine Figure 13 As shown, the middle transfer module 2 includes a mounting frame 21, a sweeper 22 arranged in the middle of the mounting frame 21, a second driving roller 23 arranged at the front and rear ends of the mounting frame 21, and a second driving motor that drives the second driving roller 23 to rotate, and the tape 4 is wound on the second driving roller 23. A protective cover 25 is provided on the top of the mounting frame 21, and a second protective net 26 is provided at the bottom of the mounting frame 21. The sweeper 22 is used to clean the tape 4.

[0075] Combine Figure 14-17As shown, the intermediate frame 5 includes a fixed frame 51 and a plurality of hanging roller assemblies 52 arranged on the fixed frame 51, the fixed frame 51 includes two longitudinal beams 511 arranged opposite to each other on the left and right and an H frame 512 arranged at the head and tail ends of the two longitudinal beams 511, the H frame 512 includes two vertical beams 5121 arranged opposite to each other on the left and right and a cross beam 5122 connected between the two vertical beams 5121, a support leg 5123 is provided below the vertical beam 5121, a U-shaped pipe seat 5124 is fixed to the top of the vertical beam 5121, and the inner cavity of the U-shaped pipe seat 5124 is adapted to the shape of the longitudinal beam 511, and the U-shaped pipe seat 5124 is connected to the longitudinal beam 511 through the first The connecting assembly 53 is detachably connected to the end of the longitudinal beam 511, and the hanging roller assembly 52 includes an upper roller group 521 and a lower roller group 522. The left and right ends of the upper roller group 521 are detachably connected to the longitudinal beam 511 on the corresponding side through the second connecting assembly 54, and the left and right ends of the lower roller group 522 are detachably connected to the vertical beam 5121 on the corresponding side through the third connecting assembly 55; wherein, the upper roller group 521 includes three upper rollers arranged in a groove shape, and the middle one is set as the first upper roller 5211, and the ones located on the left and right sides of the first upper roller 5211 are set as the second upper rollers 5212; the lower roller group 5 22 includes two lower rollers 5221 arranged in a V shape; the first connecting component 53 includes a first pin 531, and the ends of the U-shaped pipe seat 5124 and the longitudinal beam 511 are respectively provided with a first pin 531 hole and a second pin 552 hole, and the first pin 531 hole and the second pin 552 hole are both adapted to the first pin 531, and the first pin 531 is movably connected to the upper part of the vertical beam 5121 through the first chain 532; the second connecting component 54 includes a hook 541 provided at the outer end of the second upper roller 5212, and the hook 541 matches the shape of the longitudinal beam 511, and a card slot is provided on the hook 541 5411, and the longitudinal beam 511 is also provided with a boss 5412 adapted to the slot 5411, and a handle 5413 is installed on the hook 541; the third connecting component 55 includes an angle steel roller frame 551 and a second pin shaft 552, the angle steel roller frame 551 includes a first side plate 5511 and a second side plate 5512, the first side plate 5511 is fixedly connected to the vertical beam 5121 through the second pin shaft 552, and the second pin shaft 552 is movably connected to the lower part of the vertical beam 5121 through the second chain 553, and the second side plate 5512 is provided with a roller groove 55121 adapted to the roller shaft of the lower roller 5221.

[0076] Combine Figure 18As shown, the tail roller frame 3 includes a frame 31, the bottom of the frame 31 is fixed to the ground by support legs 5123, and a bracket structure 311 is provided at the drop point on the top of the frame 31, and the bracket structure 311 is used to support the tape 4, and the bracket structure 311 includes a V-shaped support frame 3111 fixed on the frame 31 and a support assembly 3112 arranged on the V-shaped support frame 3111, and the cross-section of the support assembly 3112 matches the V-shaped support frame 3111, and the height of the support assembly 3112 gradually decreases along the conveying direction, and the support assembly 3112 is composed of multiple round steels 31121, and the spacing between two adjacent round steels 31121 gradually increases along the end away from the frame 31, the lower end of the round steel 31121 is fixed on the V-shaped support frame 3111, and the higher end of the round steel 31121 is fixed on the frame 31, and baffle plates 312 are provided on both sides of the bracket structure 311.

[0077] The working principle and beneficial effects of the present invention are:

[0078] 1. Through the design of the tensioning module 11, during normal operation, the force sensor 1124 is fixed to the first frame 1121 through a fixed pin. The force sensor 1124 is used to detect the tension of the second wire rope 115. The tension generated by the second wire rope 115 acts on the first frame 1121 of the maintenance winch module, and the maintenance winch 1122 and its first wire rope drum 11221 are not subject to force. When the second motor 11322 of the main winch 1132 fails, the fixed pin on the force sensor 1124 is removed. Since the two ends of the force sensor 1124 are respectively connected to the first wire rope 114 and the second wire rope 115, the force will be transferred to the first wire rope 114 and the first wire rope drum 11221. By controlling the first motor 11222 of the maintenance winch 1122 to drive the first wire rope drum 11221 to rotate, the first wire rope 114 is released, and the tension of the second wire rope 115 is released. At this time, the staff can enter the area for maintenance.

[0079] By adding a maintenance winch 1122 to the maintenance winch module, and connecting the first steel wire rope 114 of the maintenance winch 1122 to the second steel wire rope 115 through the force sensor 1124, and at the same time the force sensor 1124 is detachably fixed to the first frame 1121 of the maintenance winch module through a fixed pin shaft, when the second motor 11322 of the main winch 1132 fails, by removing the fixed pin shaft, the force sensor 1124 is used as the force transmission medium between the second steel wire rope 115 and the first steel wire rope 114, thereby releasing the tension. At the same time, the force sensor 1124 can be used to ensure whether the tension is completely released, thereby effectively protecting the personal safety of the staff.

[0080] 2. Through the design of control module 12, during tunnel excavation projects, as the accompanying belt conveyor needs to be continuously lengthened, the tension must be adjusted accordingly. By analyzing flow sensor 121, speed sensor 122, and excavation distance data transmitted from the main control room, the PLC controller 123 adjusts the tension in real time to ensure that the belt conveyor does not slip and operates normally. This is fully automated, eliminating the need for manual adjustment.

[0081] 3. Through the design of the protective net assembly 13, when the equipment needs to be maintained, it is only necessary to use a wrench to turn the nut 137 on the front of the first protective net 132 to disengage the upper hook 135 from the upper cross bar 133, and then disengage the lower hook 136 from the lower cross bar 134. The first protective net 132 can be removed from the two cross bars without using any screws. Only the hook structure is used, which facilitates disassembly and assembly and saves time.

[0082] 4. The design of the towing device 14 utilizes a circular tube structure for track 143, which distributes force evenly. This prevents material from accumulating on top of track 143, thus preventing derailment accidents. Furthermore, the running wheels 1421 and anti-rollover wheels 1422 of the towing trolley 142 are compatible with track 143, ensuring smoother sliding. Furthermore, the anti-rollover wheels 1422 are adjustable, facilitating on-site commissioning. Furthermore, the flange connection between tracks 143 utilizes a specially designed locating pin. This pin can be inserted into the flange by tightening the thread, facilitating installation while ensuring the overall mounting dimensions of the frame.

[0083] 5. Through the design of the drive module 15, the bearing seat at one end of the first drive roller 151 is removed, and the output shaft of the reducer 153 is directly connected to the roller receiving plate 1511 of the first drive roller 151 through the drum coupling 154. The first drive motor 152 and the first drive roller 151 are both located on the same side of the reducer 153, which occupies a small space and can be arranged inside the belt conveyor without occupying aisle space.

[0084] 6. Through the design of the middle transfer module 2, on the one hand, the mounting frame 21, the sweeper 22, the second drive roller 23, the second drive motor, the guard 25, the second protective net 26 and the detection switch are integrated into one module, which is convenient for on-site installation and maintenance; on the other hand, the second drive roller 23 and the second drive motor increase the driving force for the middle part of the belt conveyor, provide secondary transfer materials, and reduce the belt strength, and the integrated sweeper 22 cleans the belt 4.

[0085] 7. Through the design of the intermediate frame 5, the traditional bolt connection method is eliminated, and pins are used to connect the longitudinal beam 511 and the U-shaped pipe seat 5124, and the angle steel roller frame 551 and the vertical beam 5121. The pins are connected to the main equipment with chains, which is convenient for disassembly and assembly and avoids the trouble caused by the loss of accessories during on-site installation; through the design of the second connecting component 54 and the third connecting component 55, the upper roller group 521 and the longitudinal beam 511, and the lower roller group 522 and the angle steel roller frame 551 are all detachable connections. When the belt 4 deviates, the staff can adjust the positions of the upper roller group 521 and the lower roller group 522 to adjust the deviation of the belt 4.

[0086] 8. Through the design of the tail roller frame 3, at the drop point of the roller frame, a support assembly 3112 composed of multiple round steels 31121 is used instead of the traditional buffer roller to provide support for the belt 4. It is arranged according to the shape of the belt 4 and acts as a buffer bed without wearing the belt 4. Compared with ordinary buffer rollers, it has a longer service life and basically does not need to be replaced.

[0087] While the embodiments of the present invention have been described above, the above description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A modular tunnel belt conveyor, comprising a drive device, a middle transfer module, a tail roller frame, and a belt running on the drive device, the middle transfer module, and the tail roller frame; wherein: The tail roller frame, the middle transfer module and the driving device are arranged in sequence along the conveying direction, and an intermediate frame is provided between them. The driving device is characterized in that: the driving device includes a tensioning module, a control module, a protective net assembly, a towing device, a driving module, a redirecting roller group and a return roller group; The tensioning module is arranged at the head of the driving device for tensioning the tape; the tensioning module includes a tensioning vehicle, a maintenance winch assembly, a main winch assembly, a first wire rope and a second wire rope, wherein the front redirecting drum is arranged on the tensioning vehicle, and the tape is wound on the front redirecting drum; wheels are arranged at the bottom of the tensioning vehicle, a wire rope wheel is arranged at the front end of the tensioning vehicle, the maintenance winch assembly is arranged in front of the tensioning vehicle, the maintenance winch assembly includes a first frame fixed to the ground, a maintenance winch, a wire rope redirecting wheel and a force sensor are arranged on the first frame, the maintenance winch includes a first wire rope drum and a wire rope redirecting wheel for driving the first wire rope drum to rotate The first motor is driven by the motor, and the force sensor is fixed to the first frame through a fixed pin shaft. The main winch assembly is arranged in front of the maintenance winch assembly. The main winch assembly includes a second frame fixed to the ground, and the second frame is provided with a main winch. The main winch includes a second wire rope drum and a second motor for driving the second wire rope drum to rotate. One end of the first wire rope is wound around the first wire rope drum, and the other end passes around the wire rope redirecting wheel and is fixedly connected to one end of the force sensor. One end of the second wire rope is wound around the second wire rope drum, and the other end passes around the wire rope wheel and is fixedly connected to the other end of the force sensor. The control module is arranged in front of the control module and is used to control the tensioning module to adjust the tension of the tape; The protective net assembly is arranged on the outside of the drive device to provide protection for equipment and personnel; The towing device is arranged in the tape storage structure, and the number of the towing device is multiple, and is used to support the adhesive tape, and the tape storage is used to store and release the adhesive tape; The driving module is arranged at the tail of the driving device and is used to drive the belt to run; The redirecting roller group includes a front redirecting roller and a rear redirecting roller arranged at the head and tail ends of the driving device, and is used to provide guidance for the adhesive belt; The return roller group is set at the bottom of the driving device to provide guidance and support for the return belt; The middle transfer module is used to drive the belt and clean the belt; The cam is connected to the upper and lower frames by the spring which are connected to the frame by the spring which is connected to the upper frame by the spring which is connected to the frame by the spring. The side is set as a second upper roller; the lower roller group includes two lower rollers arranged in a V shape; the first connecting component includes a first pin shaft, and the ends of the U-shaped pipe seat and the longitudinal beam are respectively provided with a first pin shaft hole and a second pin shaft hole, and the first pin shaft hole and the second pin shaft hole are both adapted to the first pin shaft, and the first pin shaft is movably connected to the upper part of the vertical beam through the first chain; the second connecting component includes a hook arranged at the outer end of the second upper roller, and the hook matches the shape of the longitudinal beam, a slot is provided on the hook, and a convex column adapted to the slot is also provided on the longitudinal beam, and a handle is installed on the hook; the third connecting component includes an angle steel roller frame and a second pin shaft, the angle steel roller frame includes a first side plate and a second side plate, the first side plate is fixedly connected to the vertical beam through the second pin shaft, and the second pin shaft is movably connected to the lower part of the vertical beam through the second chain, and a roller groove adapted to the roller shaft of the lower roller is provided on the second side plate; The tail roller frame is used for receiving materials; the tail roller frame includes a frame, the bottom of the frame is fixed to the ground by legs, and a bracket structure is provided at the drop point on the top of the frame, and the bracket structure is used to support the tape. The bracket structure includes a V-shaped support frame fixed to the frame and a support assembly provided on the V-shaped support frame, and the cross-section of the support assembly matches the V-shaped support frame. The height of the support assembly gradually decreases along the conveying direction. The support assembly is composed of multiple round steels, and the spacing between two adjacent round steels gradually increases along the end away from the frame. The lower end of the round steel is fixed on the V-shaped support frame, and the higher end of the round steel is fixed on the frame. Material baffles are provided on both sides of the left and right sides of the bracket structure.

2. The modular tunnel belt conveyor according to claim 1, characterized in that: The control module includes a flow sensor, a speed sensor and a PLC controller; the flow sensor is communicated with the PLC controller for detecting the flow of material on the belt; the speed sensor is communicated with the PLC controller for detecting the speed of the belt; the PLC controller is communicated with the second motor of the main winch, and the PLC controller is communicated with the controller of the main control room.

3. The modular tunnel belt conveyor according to claim 1, characterized in that: The protective net assembly includes columns fixed on the main frame and a first protective net. There are multiple columns, and the multiple columns are evenly arranged along the left and right sides of the driving device. Two cross bars are fixed between two adjacent columns. The two cross bars are divided into an upper cross bar and a lower cross bar, and the upper cross bar and the lower cross bar are respectively located at the upper and lower ends of the columns. The first protective net is arranged between the two columns, and an upper hook adapted to the upper cross bar and a lower hook adapted to the lower cross bar are provided on the back of the first protective net. The upper hook is rotatably connected to the upper end of the first protective net through a rotating pin, and the other end of the rotating pin passes through the front of the first protective net and is fixed with a nut. A block is provided on one side of the upper hook, and the lower hook is fixedly installed at the lower end of the first protective net.

4. The modular tunnel belt conveyor according to claim 1, characterized in that: The towing device includes a towing trolley and tubular tracks arranged on the left and right sides of the towing trolley. A winding roller for winding the tape is provided in the tape storage bin. A walking wheel group and an anti-rollover wheel group that are compatible with the tracks are respectively provided at the bottom and side of the towing trolley.

5. The modular tunnel belt conveyor according to claim 1, characterized in that: The drive module includes a first drive roller, a first drive motor, a reducer and a drum coupling, and the tape is wound on the first drive roller. Both ends of the first drive roller are provided with roller connecting discs. The output shaft of the first drive motor is transmission-connected to the input shaft of the reducer. The output shaft of the reducer is fixedly connected to the roller connecting disc of the first drive roller through the drum coupling. The first drive motor and the first drive roller are both located on the same side of the reducer.

6. The modular tunnel belt conveyor according to claim 1, characterized in that: The central transfer module includes a mounting frame, a sweeper arranged in the middle of the mounting frame, a second drive roller arranged at the front and rear ends of the mounting frame, and a second drive motor that drives the second drive roller to rotate. The tape is wound around the second drive roller, a protective cover is provided on the top of the mounting frame, and a second protective net is provided at the bottom of the mounting frame. The sweeper is used to clean the tape.

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