Self-adaptive upper deviation correction roller frame and turning assembly and belt conveyor comprising same

Abstract

The present application relates to a self-adaptive upper deviation correction roller frame and a turning assembly and a belt conveyor comprising the same. The upper deviation correction roller frame comprises a roller frame drag seat, an adjusting support with an adjusting support body, a roller, a pressure roller and a blocking roller, a longitudinal adjusting support notch is centrally opened in the middle profile steel of the adjusting support body, a sliding support device comprising a sliding support seat, a shaft, a rolling wheel and a baffle, the shaft is installed in the shaft hole of the sliding support seat and is in clearance fit with the rolling wheel, the baffle is installed at both ends of the shaft to prevent the rolling wheel from falling off, the sliding support device is connected with the roller frame drag seat and is embedded in the adjusting support notch to make the inside of the adjusting support notch as a track for sliding, a limiting block is arranged at both sides of the base of the sliding support seat to limit the adjusting angle of the upper deviation correction roller frame, and a handle is hinged at both ends of the roller frame drag seat and the adjusting support. The self-adaptive upper deviation correction roller frame can respond to the deviation amount of the belt in real time and adaptively correct the deviation in real time.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor correction, specifically to an adaptive upper correction roller frame and a turning assembly including the roller frame, and a belt conveyor. Background Technology

[0002] With the development of tunneling technology, belt conveyors, as a downstream accessory to tunneling machines, provide continuous material transport after rapid tunnel excavation. They offer advantages such as fast muck removal, high construction efficiency, simple operation and maintenance, and no pollution, leading to the widespread application of continuous belt conveyor muck removal systems after tunneling. Belt conveyors are suitable for complex terrain conditions; their curved conveyor lines can bypass obstacles and unfavorable sections, thus reducing or eliminating the need for drive units and intermediate transfer stations, reducing the number of equipment and allowing for a more centralized system.

[0003] The tunnel layout is complex, and the belt conveyor can easily slip off course when encountering bends. In severe cases, this can lead to belt overturning, material spillage, and significant safety accidents and economic losses. Therefore, it is necessary to install belt guide frames to prevent belt slippage. Currently, the height of the belt guide frames on both sides is usually adjusted manually or through system control to accommodate the angle of belt slippage, thereby preventing belt overturning, bulging, and material spillage, and achieving the desired belt correction effect.

[0004] Existing belt conveyors are typically equipped with corresponding sensors, control systems, and other turning devices. However, in actual use, they suffer from serious deviations, belt tipping, and material spillage. Traditional correction methods often require a large installation space, and existing equipment and measures cannot meet the turning and correction needs of continuous belt conveyors used in tunnels and roadways. Summary of the Invention

[0005] In view of this, the present invention provides an adaptive upper correction roller frame and a turning assembly and belt conveyor including the roller frame, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0006] To achieve the aforementioned objective, a first aspect of the present invention provides an adaptive upper alignment idler frame for a TBM (Tunnel Boring Machine) conveyor belt, wherein the upper alignment idler frame is adapted to overlap with a longitudinal beam segment of a turning section of the conveyor belt via idler frame support, and the upper alignment idler frame comprises:

[0007] The upper guiding roller frame is connected to the roller frame support via the roller frame support;

[0008] An adjusting bracket, comprising an adjusting bracket body and rollers, pressure rollers and stop rollers mounted on the adjusting bracket body, wherein a longitudinal adjusting bracket slot is centrally formed in the middle section of the adjusting bracket body.

[0009] The sliding support device comprises a sliding support base, a shaft, a rolling wheel and a baffle, the shaft is installed in the shaft hole of the sliding support base and is in clearance fit with the rolling wheel, the baffle is installed at both ends of the shaft to avoid the rolling wheel from falling off, the sliding support device is connected with the carrier roller frame and is embedded in the adjusting support slot to slide in the inner side of the adjusting support slot, and a limiting block is arranged on both sides of the base of the sliding support base to limit the adjusting angle of the upper deviation correction carrier roller frame.

[0010] A handle is hinged with the carrier roller frame and the adjusting support respectively at both ends, and is located at different sides of the pressure roller and the blocking roller on the upper deviation correction carrier roller frame.

[0011] In the upper deviation correction carrier roller frame as described above, the upper deviation correction carrier roller frame can be optionally provided with a four-roller deep groove type forward inclination structure.

[0012] In the upper deviation correction carrier roller frame as described above, the adjusting support body can be optionally provided with a first side arm, a second side arm and a bottom transverse intermediate section bar, the first side arm, the second side arm and the intermediate section bar form a groove type, the carrier roller comprises two side carrier rollers and two intermediate carrier rollers, the two side carrier rollers are respectively installed on the first side arm and the second side arm, the inner ends of the two intermediate carrier rollers are respectively installed on the intermediate section bar, the outer ends of the two intermediate carrier rollers are respectively installed on the first side arm and the second side arm, and the side carrier rollers and the intermediate carrier rollers are located at different sides of the adjusting support body.

[0013] In the upper deviation correction carrier roller frame as described above, the outer ends of the side carrier rollers are farther away from the adjusting support body than the inner ends of the side carrier rollers, and the outer ends of the intermediate carrier rollers are closer to the adjusting support body than the inner ends of the intermediate carrier rollers.

[0014] In the upper deviation correction carrier roller frame as described above, the sliding support base can be optionally provided with a vertical plate and a base, the vertical plate is vertically arranged on the base, the rolling wheel, the shaft and the baffle form a rolling wheel assembly at the top of the vertical plate, the rolling wheel assembly is located in the hollow tubular structure of the intermediate section bar, and the base is fixed on one side of the carrier roller frame.

[0015] In the upper deviation correction carrier roller frame as described above, the pressure roller is located on the inner side of the deep groove type and at the end of the side carrier roller of the upper deviation correction carrier roller frame.

[0016] In the upper deviation correction carrier roller frame as described above, the blocking roller is installed on one side of the adjusting support body through a blocking roller frame.

[0017] In the upper deviation-correcting roller frame as described above, the adjusting support and the roller frame seat are always in the same plane when the adjusting support moves and tilts relative to the roller frame seat.

[0018] To achieve the foregoing object, the second aspect of the present application provides a turning assembly for a TBM tunneling belt conveyor, wherein the turning assembly comprises:

[0019] A fuselage section is built with a support frame and a longitudinal beam section, the longitudinal beam section is adapted to connect other longitudinal beam sections to meet the turning requirements of the turning section of the belt conveyor, and the support frame is used to support the installation of the turning assembly on the inner wall of the turning tunnel.

[0020] An adaptive upper deviation-correcting roller frame is built with the upper deviation-correcting roller frame as described in any one of the first aspect, and the upper deviation-correcting roller frame is connected to the longitudinal beam section through a roller frame support.

[0021] An adaptive lower deviation-correcting roller frame is connected to the longitudinal beam section through a machine frame base.

[0022] To achieve the foregoing object, the third aspect of the present application provides a TBM tunneling belt conveyor, wherein the belt conveyor has a turning section, the turning section comprises a plurality of turning assemblies as described in the second aspect, and the longitudinal beam sections of adjacent fuselage sections are connected by a pin to compensate for the angle difference caused by the turning.

[0023] The adaptive upper deviation-correcting roller frame for a TBM tunneling belt conveyor of the present application is in a deep groove structure, which concentrates the conveyed materials in the middle part of the belt conveyor belt, preventing the materials from spilling from the edge of the belt when the belt deviates in the tunnel.

[0024] In the intermediate section of the adjusting support of the upper deviation correcting roller frame of the application, a sliding support device is installed, when the belt deviates, the upper deviation correcting roller frame is deviated to the first side arm of the upper deviation correcting roller frame, the upper deviation correcting roller frame is tilted and deviated relative to the sliding support device, the sliding support device slides in the intermediate section to limit the deviated direction of the upper deviation correcting roller frame, so that the upper deviation correcting roller frame slides relatively smoothly, reduces the shaking in other directions, and keeps on the sliding track defined by the sliding support device. When the belt continues to deviate the upper deviation correcting roller frame, the intermediate section of the upper deviation correcting roller frame abuts against the limiting block of the sliding support device, which limits the continuous tilting and deviation of the upper deviation correcting roller frame, and the handle pulls the second side arm of the upper deviation correcting roller frame, thereby limiting the deviation amount of the belt. When the belt continues to deviate, the blocking roller provided on the first side arm limits the edge of the belt, prevents the belt from continuing to deviate, prevents the belt from turning over, and cooperates with the pressing roller on the first side arm, which presses the belt from above to prevent the belt from rolling over. Due to the setting of the blocking roller and the pressing roller of the first side arm and the influence of the weight of the belt itself, the belt has a tendency to return to the original position, and the upper deviation correcting roller frame drives the belt to return to the original position through the guidance of the sliding support device and the handle, realizing adaptive deviation correction of the turn.

[0025] The upper deviation correcting roller frame of the application can adaptively correct the deviation of the belt in real time. Moreover, the upper deviation correcting roller frame is simple to set and easy to install, can concentrate the conveyed materials in the middle part of the belt, can adaptively correct the deviation of the belt in real time, and effectively reduces material scattering.

[0026] The application further provides a turn assembly and a belt conveyor with the upper deviation correcting roller frame, which also has the above advantages. BRIEF DESCRIPTION OF DRAWINGS

[0027] The disclosure of the application will be more apparent with reference to the drawings. It should be understood that these drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the application. In the drawings:

[0028] Figure 1 It is a schematic view of the turn section body of an embodiment of the TBM tunneling belt conveyor of the application;

[0029] Figure 2 It is a schematic view of the installation of an embodiment of the turn assembly of the application on the inner wall of the tunnel;

[0030] Figure 3 It is a schematic view of the body section of an embodiment of the turn assembly of the application;

[0031] Figure 4 It is a structural schematic view of the adaptive upper deviation correcting roller frame of the application; and,

[0032] Figure 5 For Figure 4 Structure diagram of support device of adaptive upper deviation correction roller frame.

[0033] Reference signs: 1-adaptive upper deviation correction roller frame; 2-roller frame support; 3-turning section of belt conveyor; 4-longitudinal beam section; 5-roller frame drag seat; 6-adjusting bracket; 7-adjusting bracket body; 8-roller; 9-pressing roller; 10-stop roller; 11-intermediate section steel; 12-adjusting bracket notch; 13-sliding support device; 14-sliding support seat; 15-shaft; 16-rolling wheel; 17-stop plate; 18-limiting block; 19- handle; 20-first side arm; 21-second side arm; 23-side roller; 24-intermediate roller; 25- vertical plate; 26-base; 27-rolling wheel assembly; 28-turning assembly; 29-machine body section; 30-support frame; 32-inner wall of turning lane; 33-adaptive lower deviation correction roller frame; 34-reverse V-shaped pressing belt roller; 35-carrying platform; 36-stiffening rib. DETAILED DESCRIPTION

[0034] With reference to the drawings and specific embodiments, the structure, composition, features and advantages of the adaptive upper deviation correction roller frame according to the present application and the turning assembly, belt conveyor comprising the same will be described below in an exemplary manner, however, all the descriptions shall not be used to form any limitation on the present application.

[0035] In addition, for any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the drawings, the present application still allows any combination or deletion to be continued between these technical features (or their equivalents) without any technical obstacles, so it should be considered that more embodiments according to the present application are also within the scope of the description herein.

[0036] It should also be noted that the terms "upper", "lower", "middle", "inner", "low" and the like indicate the orientation or positional relationship based on the orientation or positional relationship of the adaptive upper deviation correction roller frame or its corresponding components shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. In the description of the present disclosure, the meaning of "a plurality of" is at least two, for example, two, three or more, etc., unless otherwise explicitly and specifically limited.

[0037] In addition, the terms "first", "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.

[0038] Figure 1 A schematic diagram of a turning section body of an embodiment of the belt conveyor for TBM tunneling.

[0039] From Figure 1 It can be seen that the turning section of the belt conveyor is arranged along the inner wall of the turning tunnel, and the belt of the belt conveyor is prone to deviating to the inner side of the turning section of the belt conveyor and the inner wall of the turning tunnel when passing through the turning tunnel. In an optional embodiment, the turning radius of the turning section is between 50 meters and 300 meters. Figure 1 In the figure, the upper edge of the belt conveyor shows the inner wall of the turning tunnel.

[0040] Figure 2 A schematic diagram of the installation of an embodiment of the turning assembly on the inner wall of the tunnel.

[0041] From Figure 2 It can be seen that the turning assembly 28 comprises two longitudinal beam sections 4 arranged in parallel, a support frame 30, an adaptive upper deviation correction roller frame 1, and an adaptive lower deviation correction roller frame 33. When the belt of the belt conveyor passes through the adaptive upper deviation correction roller frame 1 and the adaptive lower deviation correction roller frame 33, the belt is corrected. The turning assembly 28 is fixed and supported on the inner wall 32 of the turning tunnel through the support frame 30. The support frame 30 comprises a horizontal support and an inclined support. The horizontal support fixedly supports the two longitudinal beam sections 4 and is fixed at one end to the inner wall 32 of the turning tunnel. The inclined support is supported at the other end of the horizontal support and the inner wall 32 of the turning tunnel. In an optional embodiment, the inclined support and the horizontal support form an angle of between 30° and 60°, for example, 45°. This angle more firmly fixes the turning assembly 28 to the inner wall 32 of the turning tunnel. In other embodiments, the mutual connection between the horizontal support, the inclined support, and the inner wall 32 of the turning tunnel is fixed by bolts. In optional embodiments, the connection mode is not limited and can also be fixed and connected by rivets, welding, and the like.

[0042] Figure 3 A schematic diagram of a body section of an embodiment of the turning assembly.

[0043] In combination Figure 2 With Figure 3 It can be seen that the body section 29 of the turning assembly 28 can be connected to other body sections 29 to conform to the turning angle of the turning tunnel, forming a belt conveyor turning section as shown in Figure 1 Specifically, the body section 29 is built on the inner wall 32 of the turning tunnel through the longitudinal beam section 4 and the support frame 30 thereof. The longitudinal beam sections 4 of adjacent body sections 29 are connected by a plug-in manner. This plug-in manner can compensate for the angle difference caused by the turning, so that the turning assembly 28 is arranged along the turning angle of the turning tunnel, forming a belt conveyor turning section as shown in Figure 1The turning section of the machine body. The adaptive upper correction roller frame 1 and adaptive lower correction roller frame 33 shown in the figure can ensure that the belt on the turning roadway can continuously and in real time pass through the turning component 28 for adaptive correction, so as to ensure that the belt conveyor section can transport materials smoothly without overturning or spilling, and to ensure that the belt passes through the turning roadway smoothly without affecting the material transport of the belt.

[0044] from Figure 3 As can be seen from the diagram, the turning assembly 28 includes two body sections 29. One body section 29 includes an adaptive upper correction roller frame 1, an adaptive lower correction roller frame 33, a longitudinal beam section 4, and a support frame 30. The adaptive upper correction roller frame 1 can correct the conveyor section of the belt, such as... Figure 3 The belt moves in the direction of the horizontal arrow above; the adaptive lower correction roller frame 33 can correct the belt's return section, such as... Figure 3 The movement is indicated by the horizontal arrow below. Another body segment 29 includes a reverse V-belt pressure idler 34, another longitudinal beam segment, and a matching support frame. The adaptive upper correction idler frame 1 overlaps with the longitudinal beam segment 4 via the idler frame support 2, and the adaptive lower correction idler frame 33 overlaps with the longitudinal beam segment 4 via the frame base. The reverse V-belt pressure idler 34 can press down the return section of the belt to facilitate the adaptive lower correction idler frame 33's correction of the belt's return section. In optional embodiments, the adaptive upper correction idler frame 1, the adaptive lower correction idler frame 33, and the reverse V-belt pressure idler 34 can be respectively installed on different body segments 29, or they can be installed on the same body segment 29, depending on actual needs.

[0045] Figure 4 This is a schematic diagram of the adaptive upper correction roller frame of the present invention.

[0046] from Figure 4 As can be seen from the embodiments, the upper guiding roller frame 1 includes a roller frame support 5, an adjusting bracket 6, a sliding support device 13, and a crank handle 19. The upper guiding roller frame 1 is connected to the roller frame support 2 via the roller frame support 5. Both ends of the roller frame support 5 are fixedly installed on the longitudinal beam segment 4 via the roller frame support 2. The sliding support device 13 is disposed on the roller frame support 5. The upper end of the sliding support device 13 is slidably connected to the adjusting bracket 6. The adjusting bracket 6 is hinged to one end of the crank handle 19, and the other end of the crank handle 19 is hinged to the roller frame support 5.

[0047] Optionally, such as Figure 4 As shown in the embodiment, the sliding support device 13 can also be fixedly installed on the bearing platform 35 extending from the bottom of the idler roller bracket 5. Two reinforcing ribs 36 are also provided at both ends of the bearing platform 35 to ensure the support strength of the bearing platform 35. The reinforcing ribs 36 can be configured as follows:Figure 4 The triangular shape of the embodiment increases the strength of the bearing platform 35 while not hindering the tilting deflection of the adjusting bracket 6. In other embodiments, the shape of the reinforcing rib 36 is not limited and can be other shapes such as rectangular, etc., as long as it does not hinder the tilting deflection of the adjusting bracket 6.

[0048] In actual material conveying, the belt of the belt conveyor runs through the tunnel and deviates to the inside of the tunnel when conveying the material on the adjusting bracket 6 of the upper deviation rectifying roller frame 1, and due to the frictional force between the belt and the adjusting bracket 6, the adjusting bracket 6 tilts and deviates relative to the sliding support device 13, and the force on the handle 19 also rotates. When the belt deviation angle reaches a certain degree, due to the combined action of the self-gravity of the belt and the gravity of the adjusting bracket 6, the belt has a tendency to return to its original position, and the belt returns to its original position together with the adjusting bracket 6 under the joint guidance of the sliding support device 13 and the handle 19, and the self-adaptive deviation rectification of the belt conveyor belt in the tunnel by the upper deviation rectifying roller frame 1 is completed. During the deviation rectification process, the upper deviation rectifying roller frame 1 tilts and deviates in real time following the changes of the belt, and at any time, the belt is supported to prevent the material conveyed in the belt from falling off.

[0049] Specifically, as shown in the embodiment of the application, the adjusting bracket 6 comprises an adjusting bracket body 7 and a plurality of rollers 8, 9 and 10 mounted on the adjusting bracket body 7. The adjusting bracket body 7 comprises a first side arm 20, a second side arm 21 and a bottom transversely arranged intermediate profile steel 11 to form a groove type. The first side arm 20 is arranged on the inside of the tunnel, so that the belt of the belt conveyor deviates to the direction of the first side arm 20 at the turning. Figure 4

[0050] The rollers 8 comprise two side rollers 23 and two intermediate rollers 24, the two intermediate rollers 24 are respectively arranged between the first side arm 20 and the intermediate profile steel 11 and between the second side arm 21 and the intermediate profile steel 11 on one side of the adjusting bracket body 7, and the two side rollers 23 are respectively arranged on the first side arm 20 and the second side arm 21 on the other side of the adjusting bracket body 7. The two side rollers 23 and the two intermediate rollers 24 form a groove type structure. As can be seen from the figure, the two side rollers 23 and the two intermediate rollers 24 are located on different sides of the adjusting bracket body 7.

[0051] In actual conveying, the belt of the belt conveyor carrying the material passes through the groove type structure arranged by the two intermediate rollers 24 to form a concave shape in the middle, and the material conveyed is gathered in the middle part of the belt due to the action of gravity. Then the two side edges of the belt are lifted up by the two side rollers 23, and the belt is adjusted by the two intermediate rollers 24 and the two side rollers 23 into a deep groove type, so that the material above the belt is as much as possible in the middle part of the belt and does not scatter from the two side edges.

[0052] ​In the optional embodiment, on one side of the adjusting bracket body 7, the first side arm 20 and the second side arm 21 are provided with long roller supports, the intermediate section steel 11 is provided with corresponding two short roller supports, the inner ends of the two intermediate rollers 24 are respectively installed on the short roller supports of the intermediate section steel 11, and the outer ends of the two intermediate rollers 24 are respectively installed on the long roller supports of the first side arm 20 and the second side arm 21. Therefore, the outer ends of the intermediate rollers 24 are farther away from the adjusting bracket body 7 than the inner ends of the intermediate rollers 24, so that the installation is facilitated, and the contact range of the intermediate rollers 24 with the belt is expanded, so that the belt with a larger area is rectified, and a better rectification effect is achieved.

[0053] On the other side of the adjusting bracket body 7, the first side arm 20 is provided with a long roller support and a short roller support, and one of the side rollers 23 is installed on the long roller support and the short roller support of the first side arm 20; the second side arm 21 is provided with a long roller support and a short roller support, and the other side roller 23 is installed on the long roller support and the short roller support of the second side arm 21. Therefore, the outer ends of the side rollers 23 are farther away from the adjusting bracket body 7 than the inner ends of the side rollers 23, so that the installation is facilitated, and the contact range of the side rollers 23 with the belt is expanded, so that the belt with a larger area is rectified, and a better rectification effect is achieved.

[0054] The outer ends of the intermediate rollers 24 and the side rollers 23 are farther away from the adjusting bracket body 7 than the inner ends of the intermediate rollers 24 and the side rollers 23, forming a four-roller deep groove type forward inclination structure, so that the rollers 8 have a larger contact range with the belt, the belt with a larger area is rectified, and a better rectification effect is achieved. In other embodiments, the mounting supports of the rollers 8 can be arranged according to specific conditions, so that a better rectification effect is achieved.

[0055] It should be noted that the fixing mode of the two intermediate rollers 24 and the two side rollers 23 to the adjusting bracket 6 is welding, which can firmly fix the rollers on the adjusting bracket 6 during rectification, and will not loosen and fall off. In the optional embodiment, the connection mode can also be riveting, bolt fixing or other connection modes, as long as the rollers can be firmly installed on the adjusting bracket 6.

[0056] From Figure 4 It can also be seen that on one side of the adjusting bracket 6 of the upper rectification roller frame 1, a blocking roller 10 is arranged at the position close to the end of the first side arm 20 through a blocking roller frame, and the blocking roller 10 is on one side of the adjusting bracket body 7. In the turning conveying process, as the belt deviation of the belt conveyor increases, the edge of the belt deviates to the end of the first side arm 20, and the blocking roller 10 can press the belt and prevent the belt from turning over.

[0057] Optionally, as Figure 4In the illustrated example, one end of the roller shaft of the blocking roller 10 can be provided in the shape of a disc with a larger diameter, which is capable of pressing the belt from above while the roller shaft of the blocking roller 10 presses the edge of the belt, so as to prevent the belt from turning over.

[0058] A pressing roller 9 is further provided on the first side arm 20 of the upper deviation correction roller frame 1, which is installed inside the adjusting bracket body 7 through a pressing roller support, near the end of the first side arm 20, and is parallel to the first side arm 20. As can be seen from the figure, in this example, the pressing roller 9 is located inside the deep groove type, and at the end of the side roller 23 of the upper deviation correction roller frame 1. When the belt of the belt conveyor deviates towards the first side arm 20, the pressing roller 9 presses the belt from above the edge of the belt, so as to prevent the belt from turning over.

[0059] One end of a lever 19 is hinged to the second side arm 21 of the upper deviation correction roller frame 1, and the other end of the lever 19 is hinged to the roller frame bracket 5. According to the embodiment of the present application, Figure 1 In the embodiment, two hinge points can be provided on the second side arm 21, and during actual installation, the hinge position of the lever 19 can be adjusted according to the actual situation of the roadway, so as to better limit the angle of the inclination and deflection of the adjusting bracket 6. The lever 19 generates a pulling force to pull the second side arm 21, so as to guide the adjusting bracket 6 back to the original position, thereby limiting the continuous deviation of the belt located in the adjusting bracket 6 and guiding the belt back to the original position. In alternative embodiments, the number of hinge points is not limited, and multiple hinge points can be provided, and different lever 19 installation positions can be set for different roadways, so as to better limit the deflection and guide the adjusting bracket 6 back to the original position.

[0060] According to the embodiment of the present application, Figure 4 The middle section steel 11 of the adjusting bracket 6 is centrally provided with a longitudinal adjusting bracket slot 12 on the lower surface, and the middle section steel 11 has a hollow tubular structure, and the upper part of the sliding support device 13 can be embedded in the hollow tubular structure through the slot 12 and slide inside the middle section steel 11. When the belt of the belt conveyor deviates and drives the upper deviation correction roller frame to incline and deflect towards the inside of the roadway, the first side arm 20 inclines upwards, and the middle section steel 11 inclines and deflects relative to the sliding support device 13, and the sliding support device 13 relatively slides inside the middle section steel 11, so as to keep the adjusting bracket 6 stably slide. The design of the slot 12 of the middle section steel 11 reduces the weight of the middle section steel 11, which on the one hand facilitates the sliding of the middle section steel 11 relative to the sliding support device 13, and on the other hand, compared with the first side arm 20, the middle section steel 11 is lighter, and it is easier for the adjusting bracket 6 to tend to return to the original position through the weight of the first side arm 20, which facilitates the self-deviation correction of the adjusting bracket 6 to the belt of the belt conveyor.

[0061] Figure 5 In the embodiment of the present application, Figure 4Structure diagram of the supporting device of the self-adaptive upper deviation rectifying roller frame Figure 4 As can be clearly seen, the sliding supporting device 13 comprises a supporting seat 14, a shaft 15, a rolling wheel 16 and a baffle 17, and is fixed on one side of the roller frame drag seat 5 through the supporting seat 14.

[0062] The sliding supporting seat 14 comprises a vertical plate 25 and a base 26, and the base 26 is provided with a through hole for fixing the sliding supporting device 13 on the roller frame drag seat 5 through a bolt. In alternative embodiments, the base 26 is not limited to being fixed on the roller frame drag seat 5 by riveting or welding, as long as it can be fixed on the roller frame drag seat 5.

[0063] Limiting blocks 18 are arranged at both ends of the base 26, and when the belt of the belt conveyor deviates, the adjusting support 6 inclines and deviates along with the belt, the limiting blocks 18 can limit the middle section steel 11 of the adjusting support 6, so that the adjusting support 6 does not overturn due to too large inclination angle, and the belt on the adjusting support 6 is prevented from overturning.

[0064] According to the embodiments of the present application, the vertical plate 25 is arranged on the base 26, and the vertical plate 25 of the sliding supporting device 13 is arranged at the middle position of the base 26. The upper end of the vertical plate 25 is provided with a shaft hole, the shaft 15 passes through the shaft hole and is fitted with the shaft hole, and the rolling wheel 16 is arranged at both ends of the shaft 15 in a clearance fit, so that the rolling wheel 16 can rotate around the shaft 15. Figure 5 In other embodiments, the shaft 15 can pass through the shaft hole and be arranged in a clearance fit with the shaft hole, and the rolling wheel 16 can be fitted at both ends of the shaft 15 in an interference fit, so that the shaft 15 can drive the rolling wheel 16 to rotate in the shaft hole.

[0065] Figure 5 Figure 5 As shown in the embodiments of the present application, the outer side of the rolling wheel 16 can be further provided with the baffle 17, and the baffle 17 is arranged at both ends of the shaft 15 and fixed with the shaft 15 through a bolt. The baffle 17 enables the rolling wheel 16 to stably roll in the limited plane, avoids the rolling wheel 16 from falling off, and ensures that the rolling wheel 16 does not deviate.

[0066] The rolling wheel 16, the shaft 15 and the baffle 17 constitute a rolling wheel assembly 27 at the top of the vertical plate 25, and the rolling wheel assembly 27 is located in the hollow tubular structure of the middle section steel 11. When the middle section steel 11 inclines and deviates relative to the sliding supporting device 13, the rolling wheel 16 slides in the interior of the middle section steel 11 with the inner wall of the steel pipe on both sides of the slot 12 as a track. The size of the rolling wheel 16 is adapted to the internal space of the middle section steel 11, and the interior of the middle section steel 11 only leaves a gap for the rolling wheel 16 to roll. The rolling wheel 16 limits the deviation of the middle section steel 11 in other directions while rolling relative to the middle section steel 11, so that the middle section steel 11 inclines and deviates more stably towards the inside of the roadway.​

[0067] When the belt conveyor material passes through the roadway, the deep groove type shape formed by the adjusting bracket 6 causes the material to concentrate in the middle of the belt due to gravity, and is not easy to fall off. When the belt deviates to the inside of the roadway, the adjusting bracket 6 tilts and deflects to the inside of the roadway under the action of friction, the first side arm 20 of the adjusting bracket 6 tilts upward, and the intermediate steel 11 tilts and deflects relative to the sliding support device 13. The rolling wheel 16 of the sliding support device 13 rolls inside the intermediate steel 11, keeping the intermediate steel 11 stable tilting and deflecting. The handle 19 takes the hinge point of the carrier roller bracket drag seat 5 as the origin, and the other end of the handle 19 rotates with the second side arm 21 of the adjusting bracket 6 and generates a pulling force on the adjusting bracket 6. In this process, the adjusting bracket 6 and the carrier roller bracket drag seat 5 are always in the same plane.

[0068] The belt continues to deviate to the inside of the roadway, the intermediate steel 11 deflects to the limit position, the intermediate steel 11 is limited by the limiting block 18 of the sliding support device 13, and the adjusting bracket 6 no longer tilts and deviates. The belt is still deviating, the pressure of the belt presses against the first side arm 20 of the adjusting bracket 6, the blocking roller 10 located on the first side arm 20 presses against the edge of the belt, preventing the belt from continuing to deviate while preventing the belt from tilting, and the pressing roller 9 presses the belt above the edge of the belt to further prevent the belt from tilting and rolling.

[0069] Due to the weight of the first side arm 20, the self-weight of the belt and the pulling force of the handle 19, the belt tends to return to the original position. At this time, the intermediate steel 11 tends to deviate to the original position, the intermediate steel 11 slides relative to the sliding support device 13, and the rolling wheel 16 of the sliding support device 13 rolls inside the track of the intermediate steel 11 to keep the intermediate steel 11 sliding smoothly. Through the pulling force of the handle 19, the handle 19 rotates around the handle mounting seat, guiding the adjusting bracket 6 to return to the original position, thereby guiding the belt located in the adjusting bracket 6 to return to the original position, achieving self-adaptive deviation correction of the belt in the roadway. In the process of self-adaptive deviation correction, the conveyed material is always kept in the middle of the belt, avoiding the material falling off from the edge of the belt.

[0070] The self-adaptive upper deviation correction carrier roller bracket of the application can respond to the deviation amount of the belt conveyor belt in real time and perform self-adaptive deviation correction. Moreover, the self-adaptive upper deviation correction carrier roller bracket is simple to set and easy to install, and can concentrate the conveyed material in the middle of the belt during the deviation correction process, that is, it can respond to the deviation amount of the belt in real time, correct in real time, and effectively reduce material scattering.

[0071] The application also provides a turning assembly with the self-adaptive upper deviation correction roller frame, which has the characteristics of the foregoing embodiments and thus has the corresponding advantages.

[0072] The technical scope of the application is not limited to the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical idea of the application, and these modifications and changes shall all fall within the scope of the application.

Claims

1. An adaptive upper correction roller frame (1) for a TBM tunneling belt conveyor, characterized in that, The upper guiding roller frame (1) is adapted to overlap with the longitudinal beam segment (4) of the turning section (3) of the belt conveyor via the roller frame support (2), and the upper guiding roller frame (1) includes: The upper correction roller frame (1) is connected to the roller frame support (2) via the roller frame support (5). Adjusting bracket (6), the adjusting bracket (6) has an adjusting bracket body (7) and rollers (8), pressure rollers (9) and stop rollers (10) installed on the adjusting bracket body (7), and the middle section steel (11) of the adjusting bracket body (7) has a longitudinal adjusting bracket slot (12) centered downward. A sliding support device (13) includes a sliding support base (14), a shaft (15), a rolling wheel (16), and a baffle (17). The shaft (15) is installed in the shaft hole of the sliding support base (14) and is clearance-fitted with the rolling wheel (16). The baffle (17) is installed at both ends of the shaft (15) to prevent the rolling wheel (16) from falling off. The sliding support device (13) is connected to the roller frame support (5) and is embedded in the adjusting bracket slot (12) to slide along the inner side of the adjusting bracket slot (12). Limiting blocks (18) are provided on both sides of the base of the sliding support base (14) to limit the adjustment angle of the upper correction roller frame (1). A rocker arm (19) is hinged at both ends to the roller support bracket (5) and the adjusting bracket (6) respectively. The rocker arm (19) is located on the upper correction roller support bracket (1) on different sides from the pressure roller (9) and the stop roller (10). The upper correction roller frame (1) adopts a four-roller deep groove forward tilting structure; The adjusting bracket body (7) includes a first side arm (20), a second side arm (21), and a horizontally placed intermediate steel section (11) at the bottom. The first side arm (20), the second side arm (21), and the intermediate steel section (11) form a groove. The roller (8) includes two side rollers (23) and two intermediate rollers (24). The two side rollers (23) are respectively installed on the first side arm (20) and the second side arm (21). The inner ends of the two intermediate rollers (24) are respectively installed on the intermediate steel section (11), and the outer ends of the two intermediate rollers (24) are respectively installed on the first side arm (20) and the second side arm (21). The side rollers (23) and the intermediate rollers (24) are located on different sides of the adjusting bracket body (7). The pressure roller (9) is located inside the deep groove and at the end of the side roller (23) of the upper correction roller frame (1).

2. The upper alignment roller frame (1) as described in claim 1, characterized in that, The outer end of the side roller (23) is further away from the adjusting bracket body (7) relative to the inner end of the side roller (23); the outer end of the middle roller (24) is closer to the adjusting bracket body (7) relative to the inner end of the middle roller (24).

3. The upper alignment roller frame (1) as described in claim 1, characterized in that, The sliding support seat (14) includes an upright plate (25) and a base (26). The upright plate (25) is erected on the base (26). The roller (16), the shaft (15) and the baffle (17) form a roller assembly (27) on the top of the upright plate (25). The roller assembly (27) is located inside the hollow tubular structure of the intermediate steel (11). The base (26) is fixed to one side of the roller frame support seat (5).

4. The upper alignment roller frame (1) as described in claim 1, characterized in that, The stop roller (10) is mounted on one side of the adjusting bracket body (7) via a stop roller frame.

5. The upper alignment roller frame (1) as described in claim 1, characterized in that, When the adjusting bracket (6) moves and tilts relative to the idler frame support (5), the adjusting bracket (6) and the idler frame support (5) are always in the same plane.

6. A turning assembly (28) for a belt conveyor used in TBM tunneling, characterized in that, The turning assembly (28) includes: The body section (29) is constructed using a support frame (30) and a longitudinal beam section (4). The longitudinal beam section (4) is suitable for connecting other longitudinal beam sections (4) to meet the turning requirements of the turning section of the belt conveyor. The support frame (30) is used to support the installation of the turning component (28) on the inner wall (32) of the turning tunnel. An adaptive upper correction roller frame (1), wherein the adaptive upper correction roller frame (1) adopts the upper correction roller frame (1) as described in any one of claims 1 to 5, and the upper correction roller frame (1) overlaps with the longitudinal beam segment (4) via a roller frame support (2); and An adaptive lower correction roller frame (33) is connected to the longitudinal beam segment (4) via a frame base.

7. A belt conveyor for TBM tunneling, characterized in that, The belt conveyor has a turning section (3), which includes a plurality of turning components as described in claim 6, and the longitudinal beam segments (4) of adjacent body segments (29) are connected by pins to compensate for the angle difference caused by the turning.

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