Separating and combining bridge type transfer conveyor

Abstract

The utility model discloses a split bridge type transfer conveyor and belongs to the technical field of heading machines. The device is characterized in that a self-moving transfer bridge mechanism (2) is arranged, the transfer bridge mechanism (2) is connected with a heading machine (1) and a belt conveyor (3), a conveying mechanism is arranged in the transfer bridge mechanism (2), one end of the conveying mechanism is in butt joint with a discharge port of the heading machine (1), and the other end of the conveying mechanism is in butt joint with the belt conveyor (3); the end, close to the heading machine (1), of the transfer bridge mechanism (2) is detachably connected with the heading machine (1), and the end, away from the heading machine (1), of the transfer bridge mechanism (2) is slidably connected with the belt conveyor (3). According to the separating and combining bridge type transfer conveyor, by arranging the transfer bridge mechanism which is connected with the heading machine and the belt conveyor and can move automatically, a supporting space can be reserved on the rear side of the heading machine, the defect that the heading machine and the belt conveyor need to advance and retreat back and forth in the traditional supporting process is overcome, the working efficiency is improved, and meanwhile the construction period is shortened.

Description

Technical Field

[0001] The split-combined bridge-type transfer conveyor belongs to the technical field of transfer conveyors. Background Art

[0002] A roadheader is a comprehensive device that uses mechanical means to break rocks, discharge muck, and support the operation continuously, and is commonly used in coal and tunnel mining sites. When in use, a belt conveyor is generally arranged at the rear end of the roadheader to output materials such as rocks and coal from the mining area of the roadheader.

[0003] During the mining process of the roadheader, in order to avoid the collapse of the mining face, it is generally necessary to carry out support after a certain distance of mining. Since the roadheader is connected to the belt conveyor, there is no support space between the front end of the roadheader and the rear end of the belt conveyor. The traditional method is that after the roadheader works for a certain distance, the roadheader and the belt conveyor retreat a certain distance. After leaving enough support operation space at the front end of the roadheader, the support work is carried out on the front side of the roadheader, and then the roadheader resumes mining, and so on.

[0004] Generally speaking, the time taken for the support work is much longer than the time taken for the mining work of the roadheader. Therefore, the intermittent roadheader-support work process in the prior art will cause a large waste of time, thus greatly increasing the construction period. Therefore, designing a technical solution that can change the traditional intermittent roadheader-support work process to greatly improve work efficiency and shorten the construction period has become an urgent problem to be solved in this field. Summary of the Utility Model

[0005] The technical problem to be solved by the present utility model is: to overcome the deficiencies of the prior art and provide a split-combined bridge-type transfer conveyor that is connected to a roadheader and a belt conveyor and has a self-moving transfer bridge mechanism, which can reserve a support space at the rear side of the roadheader, avoiding the defect that the roadheader and the belt conveyor need to reciprocate back and forth during traditional support, improving work efficiency and shortening the construction period at the same time.

[0006] The technical solution adopted by the present utility model to solve its technical problems is: the split-combined bridge-type transfer conveyor includes a roadheader and a belt conveyor, and is characterized in that: a self-moving transfer bridge mechanism is provided, the transfer bridge mechanism is connected to the roadheader and the belt conveyor, a conveying mechanism is arranged in the transfer bridge mechanism, one end of the conveying mechanism is docked with the discharge port of the roadheader, and the other end is docked with the belt conveyor; one end of the transfer bridge mechanism close to the roadheader is detachably connected to the roadheader, and the end of the transfer bridge mechanism far from the roadheader is slidably connected to the belt conveyor.

[0007] Preferably, a claw assembly is provided at one end of the transfer bridge mechanism close to the roadheader, and a ball shaft assembly for docking with the claw assembly is provided at the rear end of the roadheader. The claw assembly and the ball shaft assembly are detachably connected.

[0008] Preferably, a moving vehicle is provided at one end of the transfer bridge mechanism close to the belt conveyor, a guide rail is provided above the belt conveyor, and the moving vehicle is arranged on the surface of the guide rail.

[0009] Preferably, the claw assembly includes a set of fixed plates arranged at intervals up and down: an upper fixed plate and a lower fixed plate. Two claws are swingably arranged opposite to each other on the upper fixed plate and the lower fixed plate. A claw oil cylinder located between the two claws drives the two claws to swing relatively through a set of driving connecting plates. A hemispherical groove is respectively formed on the inner side surfaces of the two claws. The two hemispherical grooves separate or engage the swing of the claws from the ball shaft assembly.

[0010] Preferably, a claw fixed plate is provided. Two guide bars are symmetrically fixed on the front end face of the claw fixed plate. Guide grooves are provided on the opposite surfaces of the two guide bars. The lifting plate is liftably arranged in the guide grooves. The upper fixed plate and the lower fixed plate are fixed on the surface of the lifting plate. A claw lifting oil cylinder is arranged on the surface of the guide bar, and the piston rod of the claw lifting oil cylinder is connected to the upper fixed plate.

[0011] Preferably, the ball shaft assembly includes a ball shaft fixed plate fixed to the roadheader. Ball shaft mounting plates and ball shaft mounting platforms are arranged at intervals on the surface of the ball shaft fixed plate. The ball shaft is fixed between the ball shaft mounting plate and the ball shaft mounting platform. A ball head for docking with the claw assembly is coaxially fixed in the middle of the ball shaft.

[0012] Preferably, a docking groove is formed on the surface of the ball shaft mounting platform.

[0013] Preferably, the transfer bridge mechanism is formed by butt-jointing multiple transition bridge frames end to end. Front rollers and rear rollers are respectively arranged in the transition bridge frames at the front and rear ends of the transfer bridge mechanism. The conveying mechanism includes the front rollers, the rear rollers, and a belt sleeved outside the front rollers and the rear rollers.

[0014] Preferably, a transfer bridge crawler is provided at the bottom of a transition bridge frame at one end of the transfer bridge mechanism close to the roadheader. A set of self-powered crawlers are arranged on both sides of the bottom of the transfer bridge crawler, and a crawler oil cylinder for driving the crawler to lift is arranged in the transfer bridge crawler.

[0015] Preferably, the moving vehicle includes two wheel fixing frames arranged oppositely. The tops of the two wheel fixing frames on both sides are fixed together through a hinge plate, and traveling wheels slidably connected to the guide rail are respectively fixed to the bottoms of the two wheel fixing frames on both sides.

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

[0017] In the split-and-combined bridge transfer conveyor, a transfer bridge mechanism is provided to connect the tunnel boring machine and the belt conveyor. The transfer bridge mechanism is separated from the tunnel boring machine and can move by itself. When support is required, the transfer bridge mechanism is separated from the tunnel boring machine, and a support space is reserved at the rear of the tunnel boring machine. This avoids the problem in the prior art that when support is performed, the tunnel boring machine needs to drive the belt conveyor to move back and forth repeatedly due to the lack of support space, which causes a lot of time waste. This improves work efficiency and shortens the construction period.

[0018] The upper parts of the transition bridges of two adjacent sections in the transfer bridge mechanism are directly connected by a pin shaft, and the lower parts of the transition bridges of two adjacent sections are connected by a bridge connecting plate. By adjusting the length of the bridge connecting plate, the angle of the two adjacent transition bridges after connection can be adjusted. At the same time, the two adjacent transition bridges are connected by a total of three pin shafts at the top and bottom, which ensures the connection strength between the two adjacent transition bridges and further ensures the connection strength of the transfer bridge mechanism.

[0019] Since the ground at the working surface of the tunnel boring machine is often uneven, if the transfer bridge mechanism is connected to the tunnel boring machine through shaft connection or other means, the twisting between the transfer bridge mechanism and the tunnel boring machine is likely to cause damage to the connecting shaft. After the ball head is clamped by the claws, the transfer bridge mechanism and the tunnel boring machine are connected in a spherical surface, thus avoiding damage to the joint caused by uneven ground during the operation of the tunnel boring machine.

[0020] The transition bridge frame located at the rear end of the transfer bridge mechanism is rotatably connected to the mobile vehicle via a rotating shaft, so that when the transfer bridge mechanism deflects during movement, no torque is applied to the mobile vehicle, thereby causing damage to the mobile vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the front view of the split and combined bridge transfer conveyor.

[0022] Figure 2 It is the front view of the transfer bridge mechanism of the split-and-joined bridge type transfer conveyor.

[0023] Figure 3 This is the axonometric view of the claw assembly of the transfer bridge mechanism of the split-bridge transfer conveyor.

[0024] Figure 4 It is the rear view of the claw assembly of the transfer bridge mechanism of the split-bridge transfer conveyor.

[0025] Figure 5 for Figure 4 AA section view.

[0026] Figure 6 This is the axonometric view of the ball shaft assembly of the split and combined bridge transfer conveyor.

[0027] Figure 7It is a schematic diagram of the docking between the clamping claw assembly and the ball shaft assembly.

[0028] Figure 8 It is the front view of the clutch track of the transfer bridge mechanism of the split-combined bridge-type transfer conveyor.

[0029] Figure 9 It is Figure 7 the left view of.

[0030] Figure 10 It is Figure 9 the sectional view taken along the B-B direction in.

[0031] Figure 11 It is the axonometric view of the moving axle of the transfer bridge mechanism of the split-combined bridge-type transfer conveyor.

[0032] Figure 12 It is the schematic diagram of the split state of the split-combined bridge-type transfer conveyor.

[0033] Wherein: 1. Roadheader; 2. Transfer bridge mechanism; 3. Belt conveyor; 4. Jack; 5. Belt conveyor track; 6. Clamping claw assembly; 7. Front roller; 8. Feeding hopper; 9. Idler assembly; 10. Transition bridge; 11. Transfer bridge track; 12. Bridge connecting plate; 13. Rear roller; 14. Moving vehicle; 15. Clamping claw fixing plate; 16. Guide bar; 17. Lifting plate; 18. Upper fixing plate; 19. Transition pin plate; 20. Connecting shaft; 21. Hemispherical groove; 22. Lower fixing plate; 23. Clamping claw oil cylinder; 24. Card plate; 25. Clamping claw; 26. Clamping claw lifting oil cylinder; 27. Fixed shaft; 28. Driving connecting plate; 29. Driving shaft; 30. Ball shaft fixing plate; 31. Ball shaft mounting plate; 32. Ball shaft; 33. Docking groove; 34. Ball head; 35. Ball shaft mounting table; 36. Track connecting shaft; 37. Inclined plate; 38. Track housing; 39. Track; 40. Guide shaft; 41. Track oil cylinder; 42. Guide plate; 43. Base; 44. Hinge plate; 45. Hinge bar; 46. Wheel fixing bracket; 47. Traveling wheel. Specific embodiments

[0034] Figures 1 - 12 This is the best embodiment of the present invention. The following is a further description of the present invention in conjunction with the attached Figures 1 - 12 drawings.

[0035] As Figure 1As shown in the figure, the split-merge bridge-type transfer conveyor includes a roadheader 1 and a belt conveyor 3. The roadheader 1 and the belt conveyor 3 are connected by a transfer bridge mechanism 2. The roadheader 1 is implemented by a product well-known in the art, and its structure and specific working principle will not be described in detail here. The belt conveyor 3 is also implemented by a mobile belt conveyor well-known in the art. A belt conveyor crawler 5 is provided under the frame of the belt conveyor to drive the belt conveyor 3 to move. A jack 4 is also provided on the side of the frame of the belt conveyor. When the belt conveyor 3 needs to be stationary, the jack 4 extends and supports on the ground to support the belt conveyor 3. When the belt conveyor needs to move, after the jack 4 retracts, the belt conveyor 3 is driven to move by the belt conveyor crawler 5.

[0036] In this split-merge bridge-type transfer conveyor, one end of the roadheader 1 is defined as the front end of this split-merge bridge-type transfer conveyor, and the belt conveyor 3 is the rear end of this split-merge bridge-type transfer conveyor. As Figure 2 shown in the figure, the transfer bridge mechanism 2 is formed by docking multiple transition bridge frames 10 end to end. The upper parts of adjacent two transition bridge frames 10 are directly connected by pins, and the lower parts of adjacent two transition bridge frames 10 are connected by a bridge connection plate 12.

[0037] The front end of the bridge connection plate 12 is connected to the rear end of the front-side transition bridge frame 10 by a pin, and the rear end of the bridge connection plate 12 is connected to the front end of the rear-side transition bridge frame 10 by a pin. Therefore, with the pin on the upper part of adjacent two transition bridge frames 10 as the axis, by adjusting the length of the bridge connection plate 12, the angle after connection of adjacent two transition bridge frames 10 can be adjusted. At the same time, adjacent two transition bridge frames 10 are connected by a total of three pins up and down, which ensures the connection strength between adjacent two transition bridge frames 10 and further ensures the connection strength of the transfer bridge mechanism 2.

[0038] A transfer bridge crawler 11 is provided at the lower part of the front side of the transfer bridge mechanism 2. The transfer bridge crawler 11 has its own power. While the transfer bridge crawler 11 supports the front side of the transfer bridge mechanism 2, it can drive the transfer bridge mechanism 2 to move back and forth. By the above method of changing the length of the bridge connection plate 12, the overall structure of the transfer bridge mechanism 2 is low in the front and high in the rear. A clamping claw assembly 6 is provided at the front end of the frontmost transition bridge frame 10 of the transfer bridge mechanism 2, and the connection and separation with the roadheader 1 are realized through the clamping claw assembly 6. A mobile vehicle 14 is connected to the rear end of the rearmost transition bridge frame 10 of the transfer bridge mechanism 2. Guide rails are respectively provided on both sides of the upper end of the belt conveyor 3, and the mobile vehicle 14 is installed at the guide rails on both sides of the surface of the belt conveyor 3. When the transfer bridge mechanism 2 moves, the relative movement between the transfer bridge mechanism 2 and the belt conveyor 3 is realized through the mobile vehicle 14.

[0039] A transfer belt mechanism is provided within the transfer bridge mechanism 2. The transfer belt mechanism includes a front roller 7 disposed within the frontmost section of the transition bridge 10 and a rear roller 13 disposed within the rearmost section of the transition bridge 10. Similar to the structure of a traditional belt conveyor, a conveyor belt is sleeved over the front roller 7 and the rear roller 13. One of the front roller 7 and the rear roller 13 is a driving roller, and the other is a driven roller. The driving roller rotates driven by a motor, and drives the driven roller to rotate through the conveyor belt, thereby achieving the transmission of materials. At least one idler assembly 9 is provided on the upper part of each section of the transition bridge 10 to support the entire conveyor belt.

[0040] A receiving hopper 8 is provided on the upper part of the frontmost section of the transition bridge 10. After the transfer bridge mechanism 2 is docked with the roadheader 1, the receiving hopper 8 is docked with the material output end of the roadheader 1. The materials sent out by the roadheader 1 are collected through the receiving hopper 3 and sent into the transfer belt mechanism within the transfer bridge mechanism 2. The materials are continuously sent to the end of the transfer bridge mechanism 2 through the conveyor belt. The end of the transfer bridge mechanism 2 is docked with the belt within the belt conveyor 3, and the materials are further output through the belt conveyor 3.

[0041] As Figures 3 - 5 shown, the gripper assembly 6 includes a gripper fixing plate 15, and the rear end face of the gripper fixing plate 15 is fixed at the front end face of the frontmost transition bridge 10 of the transfer bridge mechanism 2. Two guide bars 16 are symmetrically fixed on the front end face of the gripper fixing plate 15. A groove is respectively formed at the end face of the two guide bars 16 close to the gripper fixing plate 15. The grooves of the two guide bars 16 form a guide groove relatively, and a lifting plate 17 is clamped within the guide groove.

[0042] An upper fixing plate 18 and a lower fixing plate 22 are respectively and vertically fixed on the upper side and the lower side of the front end face of the lifting plate 17. Both the upper fixing plate 18 and the lower fixing plate 22 are located within the gap between the two guide bars 16. A clamping plate 24 is further fixed at the upper end face of the front end of the upper fixing plate 18, and a bayonet is provided at the center of the front end of the clamping plate 24.

[0043] At the left and right ends of the fixing position of the lifting plate 17 and the upper fixing plate 18, an excessive pin plate 19 is respectively fixed. The bottom and the rear end of the two excessive pin plates 19 are respectively fixed with the lifting plate 17 and the upper fixing plate 18 at two mutually perpendicular end faces. A gripper lifting oil cylinder 26 is respectively provided on the surfaces of the two guide bars 16. The two gripper lifting oil cylinders 26 are vertically arranged, and the piston rods face upward. The cylinder bodies of the two gripper lifting oil cylinders 26 are rotationally installed on the corresponding guide bar 16 surfaces through a rotating shaft. A horizontally arranged connecting shaft 20 sequentially passes through the upper ends of the piston rods of the two gripper lifting oil cylinders 26 and the two excessive pin plates 19.

[0044] An opening is provided in the middle of the lower fixing plate 22 from front to back. At this opening, a clamping jaw oil cylinder 23 is provided. The cylinder body of the clamping jaw oil cylinder 23 rotates on both sides of the opening of the lower fixing plate 22 through a rotating shaft, and the piston rod of the clamping jaw oil cylinder 23 faces the side of the clamping jaw fixing plate 15. At the end of the piston rod of the cylinder body of the clamping jaw oil cylinder 23, two driving connecting plates 28 are simultaneously hinged through a driving shaft 29. The other ends of the two driving connecting plates 28 extend to both sides of the lower fixing plate 22 respectively and are hinged on the surface of the lower fixing plate 22.

[0045] A set of clamping jaws 25 are oppositely arranged between the upper fixing plate 18 and the lower fixing plate 22. On the inner side surfaces of the two clamping jaws 25, a hemispherical groove 21 is respectively and oppositely arranged. The rear part of the clamping jaw 25 is rotatably connected to both sides of the surface of the lower fixing plate 22. The rear ends of the clamping jaws 25 also extend to the positions of the two driving connecting plates 28 respectively and are hinged to the middle parts of the corresponding driving connecting plates 28. When the piston rod of the clamping jaw oil cylinder 23 resets, the two clamping jaws 25 on both sides are driven to separate through the driving connecting plates 28. Similarly, when the piston rod of the clamping jaw oil cylinder 23 outputs, the two clamping jaws 25 on both sides close. After the two clamping jaws 25 on both sides close, the hemispherical grooves 21 on the inner side surfaces of the two clamping jaws 25 are butted to form a complete spherical groove.

[0046] A ball shaft assembly is provided at the tail of the roadheader 1 and is matched with the clamping jaw assembly 6. As Figure 6 shown, the ball shaft assembly includes a ball shaft fixing plate 30, and the ball shaft assembly is fixed to the tail of the roadheader 1 through the ball shaft fixing plate 30. On the upper part of the rear end face of the ball shaft fixing plate 30, a ball shaft mounting plate 31 is installed. On the upper part of the rear end face of the ball shaft fixing plate 30, a ball shaft mounting platform 35 is installed. A docking groove 33 is provided on the surface of the ball shaft mounting platform 35. A ball shaft 32 is vertically fixed in the docking groove 33. The top of the ball shaft 32 is fixed to the lower surface of the ball shaft mounting plate 31. A ball head is coaxially fixed in the middle of the ball shaft 32.

[0047] When the transfer bridge mechanism 2 is docked with the roadheader 1, the clamping jaw assembly 6 gradually moves towards the ball shaft assembly. The height of the lifting plate 17 is adjusted through the clamping jaw lifting oil cylinder 26, and at the same time, the heights of the clamping jaws 25 and the clamping plates 24 are adjusted. As the transfer bridge mechanism 2 and the roadheader 1 get closer and closer, the bayonet of the clamping plate 24 is stuck on the surface of the ball shaft 32 and on the upper part of the ball head 24. At this time, the two clamping jaws 25 are located above the ball shaft mounting platform 35, and the lower fixing plate 22 enters the docking groove 33. The clamping jaw oil cylinder 23 resets to close the two clamping jaws 25 on both sides. After the clamping jaws 25 close, the ball head 34 is wrapped inside, as Figure 7 shown. At the same time, grooves are respectively provided in the upper and lower parts of the two hemispherical grooves 21. Therefore, after the clamping jaws 25 close, the two grooves are butted to form a relief groove for the ball shaft 32.

[0048] Since the ground at the working face of the roadheader 1 is often uneven, when the transfer bridge mechanism 2 is connected to the roadheader 1 by means of shaft connection or the like, the connecting shaft is easily damaged after torsion occurs between the transfer bridge mechanism 2 and the roadheader 1. After the ball head 34 is tightly held by the clamping claws 25, the transfer bridge mechanism 2 and the roadheader 1 are spherically connected, thus avoiding the damage at the docking part caused by uneven ground during the operation of the roadheader 1.

[0049] As Figures 8 - 9 shown, the transfer crawler vehicle 11 includes a base 43, and a crawler 39 is respectively arranged on both sides of the base 43. The crawlers 39 on both sides of the base 43 are self-powered. A crawler housing 38 is arranged on the upper surface of the base 43. Three inclined plates 37 are successively arranged on the top of the crawler housing 38. A crawler connecting shaft 36 is horizontally fixed on the top of the three inclined plates 37. The transfer crawler vehicle 11 is connected to the corresponding transition bridge 10 through the crawler connecting shaft 36. At the same time, through the inclination direction of the inclined plates 37, the front side of the transfer bridge mechanism 2 is integrally inclined downward to facilitate the docking with the roadheader 1.

[0050] Further combined with Figure 10 , a crawler oil cylinder 41 is arranged in the crawler housing 38. The cylinder body of the crawler oil cylinder 41 is fixed to the base 43, and the piston rod of the crawler oil cylinder 41 is fixed to the top of the inner surface of the crawler housing 38. A guide plate 42 is horizontally fixed at the upper end of the cylinder body of the crawler oil cylinder 41. Guide holes are respectively opened at the four corners of the guide plate 42. Guide shafts 40 are respectively arranged around the top of the inner surface of the crawler housing 38, and the guide shafts 40 respectively pass through the corresponding guide holes.

[0051] As Figure 11 shown, the mobile vehicle 14 includes two relatively arranged wheel fixing frames 46. Two traveling wheels 47 are respectively fixed at the bottom of each wheel fixing frame 46. The traveling wheels 47 on both sides of the mobile vehicle 14 respectively correspond to two guide rails on the top of the belt conveyor 3, so that the mobile vehicle 47 can slide on the top of the belt conveyor 3. The tops of the two side wheel fixing frames 46 are fixed together through a hinge plate 44.

[0052] The rear end of the transition bridge 10 at the rearmost end of the transfer bridge mechanism 2 is stuck on the upper and lower sides of the hinge plate 44. A hinge bar 45 is arranged on the top of the rear end of the transition bridge 10. The hinge bar 45 is vertically opposite to the hinge plate 44, and the hinge bar 45 and the hinge plate 44 are rotationally connected through a rotating shaft, so that when the transfer bridge mechanism 2 deflects during movement, no torsion is applied to the mobile vehicle 14, causing damage to the mobile vehicle 14.

[0053] The specific working process and working principle are as follows:

[0054] When the roadheader 1 advances for tunneling work, the gripper assembly 6 at the front end of the transfer bridge mechanism 2 is combined with the spherical shaft assembly at the tail of the roadheader 1, and the roadheader 1 drives the transfer bridge mechanism 2 to move forward. At this time, the piston rod of the track cylinder 41 in the transfer bridge track 11 resets, so that the tracks 39 on both sides leave the ground, and the power of the roadheader 1 is used to drive the transfer bridge mechanism 2 to move forward. At this time, the mobile vehicle 14 at the rear end of the transfer bridge mechanism 2 moves along the top of the belt conveyor 3.

[0055] When the distance between the mobile vehicle 14 and the front end of the belt conveyor 3 is sufficient, the belt conveyor 3 is fixed to the ground by the jack 4 on its side. The materials output by the roadheader 1 are transferred into the transfer bridge mechanism 2, and the conveyor belt in the transfer bridge mechanism 2 continuously sends the materials to the end of the transfer bridge mechanism 2. The end of the transfer bridge mechanism 2 is butted with the belt in the belt conveyor 3, and the materials are further output through the belt conveyor 3.

[0056] After the roadheader 1 advances a certain distance, the piston rod of the gripper cylinder 23 in the gripper assembly 6 resets, so that the grippers 25 on both sides are separated. At the same time, the piston rod of the track cylinder 41 in the transfer bridge track 11 outputs, so that the tracks 39 on both sides contact the ground. After the gripper 25 is separated from the ball head 34, the tracks 39 on both sides of the transfer bridge track 11 move, so that the transfer bridge mechanism 2 moves backward. After the transfer bridge mechanism 2 is separated from the roadheader 1, a support space is reserved, as Figure 12 shown, so as to carry out support operations at the rear side of the roadheader 1.

[0057] After the support operation is completed, the transfer bridge track 11 advances, driving the transfer bridge mechanism 2 to approach the roadheader 1. And through the above, after the gripper assembly 6 is butted with the spherical shaft mechanism, the docking of the transfer bridge mechanism 2 and the roadheader 1 is completed. The piston rod of the track cylinder 41 in the transfer bridge track 11 resets, and the track 39 leaves the ground, and the power of the roadheader 1 is used to drive the transfer bridge mechanism 2 to move forward again.

[0058] When the distance between the mobile vehicle 14 and the front end of the belt conveyor 3 is insufficient, the jack 4 on the side of the belt conveyor 3 rises, and the belt conveyor 3 advances by using its belt conveyor track 5. After advancing to the predetermined position, the belt conveyor 3 is fixed to the ground by the jack 4 again.

[0059] As can be seen from the above, in this split-combined type transfer conveyor, by setting the transfer bridge mechanism 2 connecting the roadheader 1 and the belt conveyor 3, and using the characteristics that the transfer bridge mechanism 2 can be separated from the roadheader 1 and can move by itself, it is separated from the roadheader 1 when support is needed, and a support space is reserved at the rear side of the roadheader 1. It avoids the situation in the prior art that during support, due to the lack of support space, the roadheader 1 needs to drive the belt conveyor 3 to retreat and advance repeatedly, resulting in a large waste of time. While improving the work efficiency, the construction period is shortened.

[0060] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A split-and-joint bridge transfer conveyor, comprising a tunnel boring machine (1) and a belt conveyor (3), characterized in that: A self-moving transfer bridge mechanism (2) is provided, the transfer bridge mechanism (2) is connected to the tunnel boring machine (1) and the belt conveyor (3), a conveying mechanism is arranged inside the transfer bridge mechanism (2), one end of the conveying mechanism is connected to the discharge port of the tunnel boring machine (1), and the other end is connected to the belt conveyor (3); the end of the transfer bridge mechanism (2) close to the tunnel boring machine (1) is detachably connected to the tunnel boring machine (1), and the end of the transfer bridge mechanism (2) away from the tunnel boring machine (1) is slidably connected to the belt conveyor (3).

2. The split-and-joint bridge transfer conveyor according to claim 1 is characterized in that: A claw assembly (6) is provided at one end of the transfer bridge mechanism (2) close to the tunnel boring machine (1), and a ball shaft assembly docking with the claw assembly (6) is provided at the rear end of the tunnel boring machine (1), wherein the claw assembly (6) and the ball shaft assembly are detachably connected.

3. The split-and-joined bridge transfer conveyor according to claim 1 is characterized in that: A moving vehicle (14) is arranged at one end of the transfer bridge mechanism (2) close to the belt conveyor (3), a guide rail is arranged on the upper part of the belt conveyor (3), and the moving vehicle (14) is arranged on the surface of the guide rail.

4. The split-and-joined bridge transfer conveyor according to claim 2 is characterized in that: The claw assembly (6) comprises a group of fixed plates arranged at intervals in the upper and lower parts: an upper fixed plate (18) and a lower fixed plate (22); two claws (25) are arranged on the upper fixed plate (18) and the lower fixed plate (22) to swing relative to each other; a claw oil cylinder (23) located between the two claws (25) drives the two claws (25) to swing relative to each other through a group of driving connecting plates (28); a hemispherical groove (21) is respectively provided on the inner side surfaces of the two claws (25); the two hemispherical grooves (21) separate or engage the swing of the claws (25) with the ball shaft assembly.

5. The split-and-joined bridge transfer conveyor according to claim 4 is characterized in that: A claw fixing plate (15) is provided, two guide strips (16) are symmetrically fixed on the front end surface of the claw fixing plate (15), guide grooves are provided on the opposite surfaces of the two guide strips (16), a lifting plate (17) is lifted and lowered in the guide grooves, an upper fixing plate (18) and a lower fixing plate (22) are fixed on the surface of the lifting plate (17), a claw lifting cylinder (26) is provided on the surface of the guide strip (16), and a piston rod of the claw lifting cylinder (26) is connected to the upper fixing plate (18).

6. The split-and-joint bridge transfer conveyor according to claim 2 is characterized in that: The ball shaft assembly comprises a ball shaft fixing plate (30) fixed to the tunnel boring machine (1), a ball shaft mounting plate (31) and a ball shaft mounting platform (35) are arranged at intervals on the surface of the ball shaft fixing plate (30), a ball shaft (32) is fixed between the ball shaft mounting plate (31) and the ball shaft mounting platform (35), and a ball head (34) that is connected to the claw assembly (6) is coaxially fixed in the middle of the ball shaft (32).

7. The split-and-joint bridge transfer conveyor according to claim 6 is characterized in that: A docking groove (33) is provided on the surface of the ball shaft mounting platform (35).

8. The split-and-joint bridge transfer conveyor according to claim 1 is characterized in that: The transfer bridge mechanism (2) is formed by connecting a plurality of transition bridge frames (10) end to end. The transition bridge frames (10) at the front and rear ends of the transfer bridge mechanism (2) are respectively provided with a front roller (7) and a rear roller (13). The conveying mechanism comprises the front roller (7), the rear roller (13) and a belt sleeved outside the front roller (7) and the rear roller (13).

9. The split-and-joint bridge transfer conveyor according to claim 2 is characterized in that: A transfer bridge crawler (11) is arranged at the bottom of a transition bridge frame (10) of the transfer bridge mechanism (2) close to one end of the tunnel boring machine (1), a group of self-powered crawlers (39) are arranged on both sides of the bottom of the transfer bridge crawler (11), and a crawler oil cylinder (41) for driving the crawler (39) to rise and fall is arranged inside the transfer bridge crawler (11).

10. The split-and-joined bridge transfer conveyor according to claim 3 is characterized in that: The mobile vehicle (14) comprises two wheel fixing frames (46) arranged opposite to each other. The tops of the wheel fixing frames (46) on both sides are fixed as a whole via hinged plates (44), and the bottoms of the wheel fixing frames (46) on both sides are respectively fixed with running wheels (47) slidably connected to the guide rails.

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