An improved device for horizontal slag conveyor belt

Abstract

The present application provides an improved device for a horizontal slag transfer belt, which relates to the field of underground engineering technology. The improved device for a horizontal slag transfer belt comprises: a slag chute structure, a slag transfer belt mechanism, and a discharge structure. When a slag transfer screw machine fails, the slag chute structure is connected to the slag transfer belt mechanism through rotation, so that the slag conveyed by the main machine belt is switched from the slag transfer screw machine to the slag chute structure, and then transported to the slag transfer belt mechanism through the slag chute structure. The discharge end of the slag transfer belt mechanism is also provided with a discharge structure. The discharge structure ensures that the slag flows into the continuous belt along a predetermined path through the diversion effect, completes the switching of the slag discharge mode when the slag transfer screw machine fails, and ensures the normal excavation of the shield machine during the repair of the slag transfer screw machine to ensure the continuity of construction. The overall device is suitable for scenarios with limited space, utilizes the existing space to achieve rapid conversion, and can ensure slag discharge efficiency.

Description

Technical Field

[0001] The present application generally relates to the field of underground engineering technology, and in particular to an improved device for a horizontal slag conveyor belt. Background Art

[0002] Currently, shield machines play an indispensable role in underground engineering projects, such as urban subways, tunnel projects, and water conservancy projects. During construction, shield machines must switch excavation modes according to varying geological conditions. Furthermore, the stability and reliability of the slag removal system directly impacts excavation efficiency and project progress. Currently, shield machines used in underground engineering have two operating modes: earth pressure and TBM. In TBM mode, the slag removal system uses a conveyor belt, a slag screw conveyor, and a continuous belt conveyor. However, after only two hundred tunneling cycles from earth pressure mode to TBM mode, the slag screw conveyor experiences severe wear during slag transport, particularly at the contact points between the screw shaft and blades and the slag. This significantly reduces its slag removal capacity, making it unable to meet normal excavation requirements and requiring repair. At this point, due to the lack of an active slag conveyor, the shield machine cannot proceed normally. During the repair of the slag chute screw machine, if the normal excavation of the shield machine is to be maintained, the design of an alternative slag discharge solution also faces many challenges: on the one hand, designing and installing a complete set of alternative slag discharge solutions in a limited space and carrying out large-scale modifications to the existing pipelines and support structures will greatly increase costs and construction time, and it will be impossible to achieve a rapid conversion of the slag discharge mode; on the other hand, if there is a lack of active slag conveying equipment, the fluidity of the slag will be greatly tested, and the slag will easily accumulate due to insufficient fluidity, which will hinder the smooth transfer of the slag to the continuous belt and affect the slag discharge efficiency.

[0003] In summary, in order to ensure the normal excavation of the shield machine during the repair of the slag screw machine, the present application provides an improved horizontal slag belt that can fully utilize the existing space to achieve rapid conversion and ensure slag discharge efficiency. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide an improved device for a horizontal slag belt.

[0005] The present application provides a horizontal slag belt improvement device, comprising:

[0006] A slag chute structure is provided at the output end of the main machine belt of the shield machine, and is used to receive and guide the slag conveyed by the main machine belt. The slag chute structure extends along a first direction, which is the direction in which the main machine belt conveys the slag;

[0007] a slag transfer belt mechanism, the slag transfer belt mechanism being arranged at the end of the slag chute structure and extending along a second direction, the second direction being perpendicular to the first direction; the slag chute structure being rotatably connected to the slag transfer belt mechanism, so that when the slag transfer screw machine fails, the slag conveyed by the main machine belt is switched from the slag transfer screw machine to the slag chute structure;

[0008] A discharge structure is located at the discharge end of the slag transfer belt mechanism and is used to guide the flow of slag.

[0009] According to the technical solution provided in this application, the slag chute structure includes a trough-shaped guide structure and a load-bearing structure. The trough-shaped guide structure is fixedly connected to the load-bearing structure, and the load-bearing structure is rotatably connected to the slag transfer belt mechanism.

[0010] According to the technical solution provided in the present application, the trough-shaped guide structure includes a first guide groove and a second guide groove, the first guide groove and the second guide groove are distributed in sequence along the first direction and are connected to each other, the first guide groove and the second guide groove are respectively fixedly connected to the load-bearing structure, and the load-bearing structure can drive the first guide groove and the second guide groove to move relative to each other under the action of external force to adjust the angle between the two, and there is a height difference between the end of the first guide groove close to the main machine belt and the end of the second guide groove close to the slag transfer belt mechanism.

[0011] According to the technical solution provided in the present application, the first guide trough has a feed port and a discharge port along the first direction, and the width of the feed port is greater than the width of the discharge port, and the width of the feed port of the first guide trough matches the width of the main machine belt; the second guide trough has a feed port and a discharge port along the first direction, and the width of the discharge port is greater than the width of the feed port, and the width of the feed port of the second guide trough matches the width of the discharge port of the first guide trough; the second guide trough is also provided with a baffle, and the baffle is fixedly connected to the second guide trough.

[0012] According to the technical solution provided in this application, the load-bearing structure includes a first frame, a second frame and a third frame, and the first frame, the second frame and the third frame are hinged in sequence; the first frame is fixedly connected to the first guide trough, the second frame is fixedly connected to the second guide trough, and the third frame is rotatably connected to the slag transfer belt mechanism.

[0013] According to the technical solution provided in the present application, lifting structures are symmetrically arranged on both sides of the first frame and the second frame, and the lifting structures are used to cooperate with the traction mechanism to make the first guide trough and the second guide trough rotate relative to each other under the action of the traction mechanism, and / or the second guide trough and the slag transfer belt mechanism rotate relative to each other.

[0014] According to the technical solution provided in the present application, the slag transfer belt mechanism includes a support frame and a driven wheel and a driving wheel distributed in sequence along the second direction, and a conveyor belt surrounding the outside of the driven wheel and the driving wheel. The driven wheel and the driving wheel are rotatably connected to the support frame, and a plurality of trumpet-shaped rubber rollers and a plurality of supporting rollers are arranged in sequence between the driven wheel and the driving wheel along the second direction. The middle diameter of the trumpet-shaped rubber roller is smaller than the diameter at both ends. The trumpet-shaped rubber roller is relatively close to the driven wheel, and the spacing between adjacent trumpet-shaped rubber rollers is equal. The supporting rollers are relatively close to the driving wheel, and the spacing between adjacent supporting rollers is equal.

[0015] According to the technical solution provided in the present application, the driven wheel can slide relative to the support frame, and the sliding direction is the second direction, so as to adjust the tension of the conveyor belt.

[0016] According to the technical solution provided in this application, the unloading structure includes a unloading port and a guide channel, the unloading port is fixedly connected to the guide channel, the guide channel is a sloped structure, the opening width of the unloading port is greater than the width of the conveyor belt, and the slag facing surface of the unloading port is welded with wear-resistant steel strips.

[0017] According to the technical solution provided in the present application, a plurality of vibration motors are arranged below the slag chute structure, and the vibration motors are in contact with the slag chute structure.

[0018] In summary, the present application specifically discloses an improved horizontal slag transfer belt device, comprising: a slag chute structure, a slag transfer belt mechanism, and a unloading structure; the slag chute structure is arranged at the output end of the main machine belt, extending along a first direction (slag conveying direction), and the slag transfer belt mechanism extends along a second direction perpendicular to the first direction, and is rotatably connected to the slag chute structure; the unloading structure is located at the discharge end of the slag transfer belt mechanism, and is used to guide the flow of slag; when the slag transfer screw machine needs to be repaired, the slag conveyed by the main machine belt is switched from the slag transfer screw machine to the slag chute structure through the rotational connection between the slag chute structure and the slag transfer belt mechanism, and then transported to the slag transfer belt mechanism through the slag chute structure; the slag transfer belt mechanism transports the slag along the second direction to the unloading structure, and the unloading structure ensures that the slag flows into the continuous belt along a predetermined path through the diversion effect; the improved horizontal slag transfer belt device realizes flexible switching of slag discharge methods through the coordinated design of the slag chute structure, the slag transfer belt mechanism and the unloading structure, ensures the continuity of the shield machine excavation construction, is suitable for space-constrained scenarios, and improves slag discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0020] Figure 1 This is a top view of the slag chute structure of an improved horizontal slag belt conveyor.

[0021] Figure 2 This is a side view structural schematic diagram of the slag chute structure of an improved horizontal slag belt device.

[0022] Figure 3 This is a side view structural schematic diagram of the unloading structure of an improved horizontal slag belt device.

[0023] Figure 4 This is a top view of an improved device for a horizontal slag transfer belt.

[0024] Figure 5 This is a top view of the slag transfer belt mechanism of an improved horizontal slag transfer belt device.

[0025] Figure 6 This is a side view structural schematic diagram of the slag transfer belt mechanism of an improved horizontal slag transfer belt device.

[0026] Numbers in the figure: 1. Slag chute structure; 2. Slag transfer belt mechanism; 3. Discharge structure; 4. Trough-shaped guide structure; 5. Load-bearing structure; 6. First guide trough; 7. Second guide trough; 8. Baffle bar; 9. First frame; 10. Second frame; 11. Third frame; 12. Hoisting structure; 13. Driven wheel; 14. Driving wheel; 15. Conveyor belt; 16. Trumpet-shaped rubber roller; 17. Support roller; 18. Driving device; 19. Discharge port; 20. Guide channel; 21. Slag scraper; 23. Main machine belt; 24. Continuous belt. DETAILED DESCRIPTION

[0027] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] The present application provides a horizontal slag belt improvement device, comprising:

[0030] The slag chute structure 1 is arranged at the output end of the main belt 23 of the shield machine, and is used to receive the slag transported by the main belt 23 and guide the slag. The slag chute structure 1 extends along the first direction, which is the slag transport direction of the main belt 23. For details, please refer to Figure 4 Arrow points to;

[0031] The slag transfer belt mechanism 2 is arranged at the end of the slag chute structure 1 and extends along a second direction, which is perpendicular to the first direction. The slag chute structure 1 is rotatably connected to the slag transfer belt mechanism 2, so that when the slag transfer screw machine fails, the slag conveyed by the main machine belt 23 is switched from the slag transfer screw machine to the slag chute structure 1.

[0032] The unloading structure 3 is located at the discharge end of the slag transfer belt mechanism 2 and is used to guide the flow of slag.

[0033] It should be noted that the shield machine will transport the slag to the main conveyor belt during excavation. The main conveyor belt is extended along the direction of slag transportation. The slag screw machine is arranged at the end of the main conveyor belt and is arranged in a direction perpendicular to the direction of slag transportation. The main belt 23 will transport the slag to the slag screw machine. After passing through the slag screw machine, the slag will directly flow into the continuous belt 24; the slag screw machine will be severely worn in the process of transporting slag, resulting in a significant decrease in its slag discharge capacity, which cannot meet the normal excavation needs and needs to be repaired. Due to the lack of a device for actively transporting slag, the shield machine cannot carry out normal excavation; in order to ensure the normal excavation of the shield machine during the repair of the slag screw machine, the present application provides a horizontal slag belt improvement device; specifically The device includes a slag chute structure 1, a slag transfer belt mechanism 2, and a discharge structure 3: the slag chute structure 1 is extended along the slag conveying direction and docked with the output end of the main machine belt 23, effectively preventing the slag from scattering during the conveying conversion process, and at the same time guiding the slag to the slag transfer belt mechanism 2 through its own diversion effect; the slag transfer belt mechanism 2 is designed to extend in a direction perpendicular to the slag conveying direction, which can make full use of the existing space to complete the arrangement of the slag transfer belt mechanism 2; the slag chute structure 1 is rotatably connected to the slag transfer belt mechanism 2, so that when the slag transfer screw machine fails, the existing space can be fully utilized to quickly switch the slag conveyed by the main machine belt 23 from the slag transfer screw machine to the slag chute structure 1, thereby ensuring the slag discharge efficiency; in actual situations, such as Figure 4 As shown, considering that the width of the main machine belt 23 is 1400 mm, a 1000 mm long scraper plate 21 is also installed at the material receiving end of the slag chute structure 1 to scrape the slag on the main machine belt 23 and put it into the slag chute structure 1.

[0034] The present application adds an alternative slag discharge path (main machine belt conveyor - slag transfer screw machine - continuous belt) on the basis of the existing single slag discharge path (main machine belt conveyor - slag transfer screw machine - continuous belt) to avoid the shield machine from being unable to advance normally due to the failure of the slag transfer screw machine. When designing the alternative slag discharge path, the slag transfer structure is set above the slag transfer screw machine for consideration of limited space and rapid path switching, and the slag transfer structure 1 is rotatably connected to the slag transfer belt mechanism 2. When the slag discharge path including the slag transfer screw machine is used for slag discharge, it is only necessary to lift the slag transfer structure 1 to avoid affecting the operation of the slag transfer screw machine. When the slag transfer screw machine needs to be repaired, it is only necessary to pull the slag transfer structure relative to the slag transfer belt mechanism to make the slag transfer structure 1 dock with the output end of the main machine belt 23, so that the slag material transported by the main machine belt 23 can reach the continuous belt 24 in sequence through the slag transfer structure, the slag transfer belt mechanism, and the unloading structure.

[0035] Furthermore, the slag chute structure 1 includes a trough-shaped guide structure 4 and a load-bearing structure 5 . The trough-shaped guide structure 4 is fixedly connected to the load-bearing structure 5 , and the load-bearing structure 5 is rotatably connected to the slag transfer belt mechanism 2 .

[0036] It should be noted that the trough-shaped guide structure 4 is a two-stage structure, including a first guide trough 6 and a second guide trough 7, and the internal cross-section is U-shaped as a whole, which can effectively receive and gather the transported slag to prevent the slag from splashing; when the trough-shaped guide structure 4 is an integrated structure, the trough-shaped guide structure 4 is fixedly connected to the load-bearing structure 5, and the load-bearing structure 5 is connected to the slag conveyor belt mechanism 2 through rotation, so that the slag chute structure 1 can be adjusted to rotate and the slag discharge mode can be switched; Figure 1 As shown, when the trough-shaped guide structure 4 is a split structure, the first guide trough 6 and the second guide trough 7 constitute the trough-shaped guide structure 4, and are respectively fixedly connected to the load-bearing structure 5. At this time, the load-bearing structure 5 adopts a three-section foldable design, and the slag chute structure 1 can be adjusted and rotated through the traction mechanism to realize the switching of the slag chute structure 1 and the slag screw conveyor. At the same time, the first guide trough 6 and the second guide trough 7 can also be rotated relative to each other, so that the first guide trough 6 can be overlapped on the main machine belt 23 to receive the slag transported by the main machine belt 23; through the two structural designs of the trough-shaped guide structure 4 and the load-bearing structure 5, it can be achieved that when the slag screw conveyor fails and needs to be repaired, the slag chute structure 1 can be rotated to adjust the angle to receive the slag transported by the main machine belt 23, so that the slag does not pass through the slag screw conveyor, and the slag transported by the main machine belt 23 is transported to the slag belt mechanism 2, thereby reducing the downtime for maintenance and improving the slag discharge efficiency.

[0037] Furthermore, the trough-shaped guide structure 4 includes a first guide groove 6 and a second guide groove 7, which are distributed in sequence along the first direction and are interconnected. The first guide groove 6 and the second guide groove 7 are respectively fixedly connected to the load-bearing structure 5, and the load-bearing structure 5 can drive the first guide groove 6 and the second guide groove 7 to move relative to each other under the action of external force to adjust the angle between the two. There is a height difference between the end of the first guide groove 6 close to the main machine belt 23 and the end of the second guide groove 7 close to the slag transfer belt mechanism 2.

[0038] It should be noted that if Figure 2 As shown, the first guide trough 6 is located at one end close to the main machine belt 23, which receives the slag transported by the main machine belt 23 and performs preliminary convergence and diversion of the slag; the second guide trough 7 is connected to the first guide trough 6, and the second guide trough 7 receives the slag from the first guide trough 6. At the same time, there is a 900mm height difference between the discharge port of the second guide trough 7 and the feed port of the first guide trough 6, so that the slag can form a continuous flow in the trough and quickly slide toward the slag transfer belt mechanism 2; the first guide trough 6 and the second guide trough 7 are respectively fixedly connected to the load-bearing structure 5, and the load-bearing structure 5 provides stable support for the two to ensure that during the slag transportation process, the second guide trough 7 and the first guide trough 6 will not be displaced due to the impact of the slag and the action of gravity, and the load-bearing structure 5 adopts a three-section foldable design to realize the switching of the slag chute structure 1 and the slag screw conveyor. At the same time, the first guide trough 6 and the second guide trough 7 can also realize relative rotation, so that the first guide trough 6 can be overlapped on the main machine belt 23 to receive the slag transported by the main machine belt 23.

[0039] Furthermore, the first guide groove 6 has a feed port and a discharge port along the first direction, and the width of the feed port is greater than the width of the discharge port, and the feed port width of the first guide groove 6 matches the width of the main machine belt 23; the second guide groove 7 has a feed port and a discharge port along the first direction, and the width of the discharge port is greater than the width of the feed port, and the feed port width of the second guide groove 7 matches the discharge port width of the first guide groove 6; the second guide groove 7 is also provided with a baffle 8, which is fixedly connected to the second guide groove 7.

[0040] It should be noted that the first guide trough 6 is an inner eight-shaped shrinking hopper, and the width of the feed port of the first guide trough 6 set along the first direction matches the width of the main machine belt 23. For example, the width of the main machine belt 23 is set to 1400mm, and the width of the feed port of the first guide trough 6 is set to 1200mm, which can completely receive the slag transported by the main machine belt 23 to prevent the slag from being scattered; its discharge port width is smaller than the feed port, which can gather the slag and make it enter the second guide trough 7 in a relatively concentrated state; the second guide trough 7 is an outer eight-shaped expanding hopper, and the width of the feed port is adapted to the width of the discharge port of the first guide trough 6 to ensure The slag can be transferred smoothly, and the width of the discharge port of the second guide trough 7 is greater than the feed port, which helps the slag to further spread in the second guide trough 7 and be subsequently transferred to the slag transfer belt mechanism 2; since the shield machine excavation geology is gneiss, when encountering a broken rock layer, large stones are likely to appear in the slag discharge. If the stone particle size is greater than 300mm, it will be transported to the vertical belt through the continuous belt 24 and will be stuck in the vertical belt roller, thereby causing damage to the vertical belt. Therefore, a baffle 8 with a height of 250mm is provided at one end of the second guide trough 7 near the discharge port and is fixedly connected to the second guide trough 7 to intercept large stones that appear during the slag discharge process.

[0041] Furthermore, the load-bearing structure includes a first frame 9, a second frame 10 and a third frame 11, and the first frame 9, the second frame 10 and the third frame 11 are hinged in sequence; the first frame 9 is fixedly connected to the first guide trough 6, the second frame 10 is fixedly connected to the second guide trough 7, and the third frame 11 is rotatably connected to the slag transfer belt mechanism 2.

[0042] It should be noted that the first frame 9 is fixedly connected to the first guide trough 6. The first frame 9 is U-shaped, with the opening direction facing the second frame 10 and hinged to the second frame 10. The second frame 10 includes a "mouth"-shaped mounting frame arranged in sequence along the slag conveying direction and a connecting frame for providing an accommodation space for the slag transfer belt mechanism 2. The mounting frame is hinged to the first frame 9 and fixedly connected to the connecting frame. The connecting frame is hinged to the third frame 11. When the first frame 9 and the second frame 10 rotate relative to each other around the hinge point under the action of the traction mechanism, the first guide trough 6 and the second guide trough 7 can be driven to rotate relative to each other; the third frame 11 and the slag transfer belt mechanism 2 are rotationally connected. When the slag transfer screw machine fails, the third frame 11 and the slag transfer belt mechanism 2 are driven to rotate relative to each other through the traction mechanism, so that the slag chute structure 1 can quickly switch to rotate and guide the slag transported by the main machine belt 23 into the slag chute structure 1.

[0043] Furthermore, a lifting structure 12 is symmetrically provided on both sides of the first frame 9 and the second frame 10. The lifting structure 12 is used to cooperate with the traction mechanism to make the first guide trough 6 and the second guide trough 7 rotate relative to each other under the action of the traction mechanism, and / or the second guide trough 7 and the slag transfer belt mechanism 2 rotate relative to each other.

[0044] It should be noted that the lifting structure 12 is two pairs of welded lifting ears, which are respectively fixed on both sides of the first frame 9 and the second frame 10, and are symmetrically arranged; the traction mechanism is the existing technology, including four hand hoists and traction chains fixed on the top platform of trailer No. 1; a lifting ring is provided at one end of the traction chain connected to the lifting ear, and each lifting ear is provided with a through hole penetrated by the lifting ring; in actual application, when the slag screw machine is working or needs maintenance, the traction chain is pulled by the hand hoist, and the generated tension will act on the first frame 9 and the second frame 10. If only the relative angle of the first guide trough 6 and the second guide trough 7 needs to be adjusted, the hand hoist corresponding to the first frame 9 can be operated synchronously to make the first guide trough 6 and the second guide trough 7 rotate relative to each other around the hinge point; if the relative angle of the second guide trough 7 and the slag belt mechanism 2 needs to be adjusted, the hand hoist corresponding to the second frame 10 can also be operated synchronously to make the second guide trough 7 and the slag belt mechanism 2 rotate relative to each other, thereby realizing rapid switching of the slag chute structure 1 and the slag screw machine.

[0045] Furthermore, the slag transfer belt mechanism 2 includes a support frame and a driven wheel 13 and a driving wheel 14 distributed in sequence along the second direction, and a conveyor belt 15 surrounding the outside of the driven wheel 13 and the driving wheel 14. The driven wheel 13 and the driving wheel 14 are rotatably connected to the support frame, and a plurality of trumpet-shaped rubber rollers 16 and a plurality of rollers 17 are arranged in sequence along the second direction between the driven wheel 13 and the driving wheel 14. The middle diameter of the trumpet-shaped rubber roller 16 is smaller than the diameter at both ends. The trumpet-shaped rubber roller 16 is relatively close to the driven wheel 13, and the spacing between adjacent trumpet-shaped rubber rollers 16 is equal. The rollers 17 are relatively close to the driving wheel 14, and the spacing between adjacent rollers 17 is equal.

[0046] It should be noted that the driving wheel 14 is driven to rotate by the driving device 18, wherein the driving device 18 can be a motor, and the motor output shaft is fixedly connected to the driving wheel 14, such as Figure 5As shown, when the driving wheel 14 rotates, it will drive the conveyor belt 15 to rotate, and then drive the driven wheel 13 to rotate; the trumpet-shaped rubber roller 16 arranged near the driven wheel 13 has a middle diameter smaller than the diameter at both ends, which enhances the slag-bearing capacity of the slag transfer belt mechanism 2, and the adjacent trumpet-shaped rubber rollers 16 are arranged at equal intervals, which can enable the conveyor belt 15 to form a continuous and uniform supporting force when carrying slag, thereby preventing the slag from scattering; the rollers 17 arranged near the driving wheel 14 mainly bear the supporting role of the conveyor belt 15, and the equal interval arrangement avoids excessive local pressure on the conveyor belt 15, which may cause deformation or damage to the belt; the combined layout design of the trumpet-shaped rubber rollers 16 and the rollers 17 improves the operating stability and slag conveying efficiency of the slag transfer belt mechanism 2. For example, the slag conveyor belt mechanism 2 has a width of 1000 mm and a length of 5400 mm. The driven wheels 13 distributed in sequence along the second direction have a diameter of 300 mm, the driving wheel 14 has a diameter of 500 mm, the roller 17 arranged close to the driving wheel 14 has a diameter of 90 mm, and the driving device 18 is an 11 kW motor, which directly drives the driving wheel 14 to rotate, thereby driving the conveyor belt 15 to rotate.

[0047] Furthermore, the driven wheel 13 can slide relative to the support frame, and the sliding direction is the second direction, so as to adjust the tension of the conveyor belt 15.

[0048] It should be noted that if Figure 6 As shown, by adjusting the sliding of the driven wheel 13, the center distance between the driven wheel 13 and the driving wheel 14 can be flexibly changed to adjust the tension of the conveyor belt 15; when the conveyor belt 15 is loose, the driven wheel 13 is slid in the direction opposite to the second direction to increase the distance from the driving wheel 14, thereby tightening the belt; conversely, when the conveyor belt 15 is too tight, the driven wheel 13 can be moved in the second direction to reduce the distance from the driving wheel 14, thereby reducing the tension, so that the conveyor belt 15 can be prevented from breaking due to excessive stretching, thereby ensuring the stable operation of the slag transfer belt mechanism 2.

[0049] Furthermore, the unloading structure 3 includes a unloading port 19 and a guide channel 20. The unloading port 19 is fixedly connected to the guide channel 20. The guide channel 20 is a sloped structure. The opening width of the unloading port 19 is greater than the width of the conveyor belt 15, and the slag-facing surface of the unloading port 19 is welded with wear-resistant steel strips.

[0050] It should be noted that if Figure 3As shown, the sloped structure of the guide channel 20 is specifically inclined from the discharge port 19 to the continuous belt 24. This sloped structure reduces the impact of the slag on the continuous belt 24 when the slag falls vertically; the opening width of the discharge port 19 is greater than the width of the conveyor belt 15. For example, the width of the conveyor belt 15 is 1000mm, and the opening width of the discharge port 19 is 1200mm, which can ensure that the slag on the conveyor belt 15 will not be scattered and accumulated due to the small width of the discharge port 19; the discharge port 19 is welded with wear-resistant steel strips on the side that contacts the high-speed falling or flowing slag and is impacted by the slag (that is, the slag facing side), which can resist the wear of the discharge port 19 caused by the high-speed impact and friction of the slag, thereby effectively extending the service life of the discharge structure 3.

[0051] Furthermore, a plurality of vibration motors are provided below the slag chute structure 1 , and the vibration motors are in contact with the slag chute structure 1 .

[0052] It should be noted that the flow of slag in the slag chute structure 1 is maintained by the inertia of the slag transported by the main machine belt 23 and the height difference between the first guide trough 6 and the second guide trough 7. If the slag is too dry, the fluidity of the slag will be reduced, which will cause the slag to accumulate in the slag chute structure 1; therefore, two vibration motors are specially installed at the bottom of the slag chute structure 1 to strengthen the shaking of the slag and enhance the fluidity of the slag.

[0053] Working principle: When the shield machine is in normal working condition, the main belt 23 will transport the slag to the slag screw machine. After being processed by the slag screw machine, the slag will directly flow into the continuous belt 24; when the slag screw machine needs to be repaired, the slag chute structure 1 is connected with the slag belt mechanism 2 by rotation, and the traction mechanism and the lifting structure 12 are coordinated to drive the load-bearing structure 5 and the slag belt mechanism 2 to rotate, and then drive the trough-shaped guide structure 4 to rotate, so that the slag chute structure 1 is overlapped at the end of the main belt, thereby quickly switching the slag path, so that the slag can form a continuous flow inside the trough-shaped guide structure 4, so that the transported slag directly flows into the slag belt mechanism 2 quickly through the slag chute structure 1. In the slag belt mechanism 2, the driving wheel 14 is driven to rotate by the motor, driving the conveying belt 15 to operate, and then It drives the driven wheel 13 to rotate, and the driven wheel 13 can adjust the tension of the conveyor belt 15 by sliding. A plurality of trumpet-shaped rubber rollers 16 and a plurality of rollers 17 are sequentially arranged between the driven wheel 13 and the driving wheel 14 along the second direction to provide support for the conveyor belt 15, enhance the slag-bearing capacity of the conveyor belt 15, and ensure that the slag is transported to the unloading structure 3 along the second direction. The unloading port 19 of the unloading structure 3 receives the slag output by the conveyor belt 15, and finally introduces it into the continuous belt 24 through the sloped diversion channel 20; the horizontal slag transfer belt improvement device realizes the flexible switching of slag discharge mode through the coordinated design of the slag chute structure 1, the slag transfer belt mechanism 2 and the unloading structure 3, thereby ensuring the continuity of the shield machine excavation construction, making full use of the existing space and ensuring the slag discharge efficiency.

[0054] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A horizontal slag belt improvement device, characterized in that: include: A slag chute structure (1), the slag chute structure (1) being arranged at the output end of the main machine belt (23) of the shield machine, and being used to receive the slag transported by the main machine belt (23) and to guide the slag, the slag chute structure (1) being extended along a first direction, the first direction being the slag transport direction of the main machine belt (23); A slag transfer belt mechanism (2), the slag transfer belt mechanism (2) being arranged at the end of the slag chute structure (1) and extending along a second direction, the second direction being perpendicular to the first direction; the slag chute structure (1) being rotatably connected to the slag transfer belt mechanism (2), so that when the slag transfer screw machine fails, the slag conveyed by the main machine belt (23) is switched from the slag transfer screw machine to the slag chute structure (1); A discharge structure (3), the discharge structure (3) being located at the discharge end of the slag transfer belt mechanism (2) and being used for guiding the flow of slag; The slag chute structure (1) comprises a trough-shaped flow-guiding structure (4) and a load-bearing structure (5), wherein the trough-shaped flow-guiding structure (4) is fixedly connected to the load-bearing structure (5), and the load-bearing structure (5) is rotatably connected to the slag transfer belt mechanism (2); The trough-shaped guide structure (4) includes a first guide groove (6) and a second guide groove (7), the first guide groove (6) and the second guide groove (7) are sequentially distributed along the first direction and are interconnected, the first guide groove (6) and the second guide groove (7) are respectively fixedly connected to the load-bearing structure (5), and the load-bearing structure (5) can drive the first guide groove (6) and the second guide groove (7) to move relative to each other under the action of an external force to adjust the angle between the two, and there is a height difference between an end of the first guide groove (6) close to the main machine belt (23) and an end of the second guide groove (7) close to the slag transfer belt mechanism (2); The load-bearing structure (5) comprises a first frame (9), a second frame (10) and a third frame (11), wherein the first frame (9), the second frame (10) and the third frame (11) are hinged in sequence; the first frame (9) is fixedly connected to the first guide trough (6), the second frame (10) is fixedly connected to the second guide trough (7), and the third frame (11) is rotatably connected to the slag transfer belt mechanism (2).

2. The horizontal slag belt improvement device according to claim 1 is characterized in that: The first guide groove (6) has a feed port and a discharge port along the first direction, and the width of the feed port is greater than the width of the discharge port, and the width of the feed port of the first guide groove (6) matches the width of the main machine belt (23); The second guide groove (7) has a feed port and a discharge port along the first direction, and the width of the discharge port is greater than the width of the feed port, and the width of the feed port of the second guide groove (7) matches the width of the discharge port of the first guide groove (6); the second guide groove (7) is also provided with a blocking rod (8), and the blocking rod (8) is fixedly connected to the second guide groove (7).

3. The horizontal slag belt improvement device according to claim 1, characterized in that: A hoisting structure (12) is symmetrically provided on both sides of the first frame (9) and the second frame (10). The hoisting structure (12) is used to cooperate with a traction mechanism, and under the action of the traction mechanism, the first guide trough (6) and the second guide trough (7) are relatively rotated, and / or the second guide trough (7) and the slag transfer belt mechanism (2) are relatively rotated.

4. The horizontal slag belt improvement device according to claim 1, characterized in that: The slag transfer belt mechanism (2) comprises a support frame and a driven wheel (13) and a driving wheel (14) sequentially distributed along the second direction, and a conveying belt (15) surrounding the outside of the driven wheel (13) and the driving wheel (14), wherein the driven wheel (13) and the driving wheel (14) are rotatably connected to the support frame, and a plurality of trumpet-shaped rubber rollers (16) and a plurality of rollers (17) are sequentially arranged between the driven wheel (13) and the driving wheel (14) along the second direction, wherein the middle diameter of the trumpet-shaped rubber roller (16) is smaller than the diameter at both ends, the trumpet-shaped rubber roller (16) is relatively close to the driven wheel (13), and the spacing between adjacent trumpet-shaped rubber rollers (16) is equal, and the rollers (17) are relatively close to the driving wheel (14), and the spacing between adjacent rollers (17) is equal.

5. The horizontal slag belt improvement device according to claim 4, characterized in that: The driven wheel (13) is capable of sliding relative to the support frame, with the sliding direction being the second direction, so as to adjust the tension of the conveyor belt (15).

6. The horizontal slag belt improvement device according to claim 4, characterized in that: The unloading structure (3) includes a unloading port (19) and a guide channel (20), wherein the unloading port (19) is fixedly connected to the guide channel (20), and the guide channel (20) is a sloped structure. The opening width of the unloading port (19) is greater than the width of the conveyor belt (15), and the slag-facing surface of the unloading port (19) is welded with wear-resistant steel strips.

7. The horizontal slag belt improvement device according to claim 1, characterized in that: A plurality of vibration motors are provided below the slag chute structure (1), and the vibration motors are in contact with the slag chute structure (1).

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