Freely switchable unloading port flap above belt conveyor

By designing a freely switchable flap structure above the belt conveyor, the problem of construction downtime during belt conveyor system failures or maintenance was solved, achieving continuity and high efficiency in tunnel boring.

CN224496441UActive Publication Date: 2026-07-14CHINA RAILWAY SHISIJU GROUP CORP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY SHISIJU GROUP CORP
Filing Date
2025-09-19
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing technologies, when the belt conveyor system malfunctions or requires maintenance, it can affect the tunnel boring machine (TBM) operation and lead to a decrease in construction efficiency.

Method used

A freely switchable flap structure for the upper discharge port of a belt conveyor was designed. The flap can be flipped by a control device to achieve temporary transportation of slag to the slag yard, avoiding downtime for maintenance.

Benefits of technology

When the belt conveyor malfunctions or is under maintenance, the tunnel boring machine can continue to run without interruption, ensuring continuous construction and improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to shield tunneling residue discharging technical field especially relates to a free switching type turnover plate of unloading port above belt conveyor, including slurry separation equipment residue discharging port and belt conveyor, and the slurry separation equipment residue discharging port is equipped with the discharge plate, and the discharge plate downside is equipped with the residue field and is splashed, and the residue field and is splashed and is opened with unloading port on, the residue field and is splashed and is articulated with the turnover plate, the residue field and is splashed and are equipped with control device on, and the control device includes pulley frame, steel wire rope and winding assembly, and the pulley frame upper portion is equipped with the pulley of erecting steel wire rope, one end of steel wire rope is connected with the turnover plate, and the other end of steel wire rope is connected with winding assembly, the utility model slurry separation equipment residue discharging port is equipped with the residue field and is splashed with the turnover plate, and the turnover plate can quickly switch residue soil discharge position, when the belt conveyor appears the breakdown or needs maintenance, the steel wire rope of control device loosens the turnover plate, closes unloading port, and the residue soil is temporarily transported to the residue field, realizes shield tunneling non -stop, and the belt conveyor overhauls maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of shield tunneling and slag removal technology, and in particular to a freely switchable flap at the upper discharge port of a belt conveyor. Background Technology

[0002] The muck removal process is a core part of tunnel construction, and its efficiency directly affects the project progress. After the tunnel boring machine cuts the soil with its cutterhead, the muck enters the soil chamber and is transported to the mud-water separation equipment by a screw conveyor or mud pump. The solid particles and water in the mud are separated, and the muck is discharged through a belt conveyor system for further processing. If the belt conveyor system malfunctions or needs maintenance, it will affect the tunnel boring work and the construction efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a freely switchable flap for the upper discharge port of a belt conveyor.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A freely switchable flap at the top of a belt conveyor includes a slag outlet of a mud-water separation device and a belt conveyor. The slag outlet of the mud-water separation device is equipped with a discharge plate, and a slag yard flow plate is provided on the lower side of the discharge plate. The slag yard flow plate has a slag outlet corresponding to the belt conveyor. A flap is hinged to one side of the slag yard flow plate at the slag outlet. A control device is provided on the slag yard flow plate. The control device includes a pulley frame, a steel wire rope, and a winding assembly. The upper part of the pulley frame is equipped with a pulley for supporting the steel wire rope. One end of the steel wire rope is connected to the flap, and the other end of the steel wire rope is connected to the winding assembly.

[0006] Preferably, the slag outlet of the mud-water separation equipment is provided in multiple sets, which are evenly arranged above the belt conveyor.

[0007] Preferably, the slag yard sluice plate has a discharge recess at the end opposite to the discharge plate, and a vibration device is provided on the lower side of the discharge recess.

[0008] Preferably, the slag yard sluice is provided with a splash guard adapted to the discharge port on the lower side, and the discharge port corresponding to the belt conveyor is provided on the lower side of the splash guard.

[0009] Preferably, the side of the discharge port is provided with a limiting block corresponding to the flap, and the upper surface of the flap and the upper surface of the slag yard spillway are located in the same plane.

[0010] Preferably, the flap is provided with an installation ring corresponding to the wire rope on the side away from the hinge, and the pulley frame is located between the flap and the winding assembly; the winding assembly includes a winding wheel and a winding shaft, the winding shaft passes through the shaft of the winding wheel and is fixedly connected to it, the winding shaft is rotatably connected to the slag yard sluice plate, and a driving device is provided on the winding shaft.

[0011] The beneficial effects of this utility model are as follows:

[0012] Compared with the existing technology, the slag discharge port of the slag separation equipment of this utility model is equipped with a slag yard flow plate with a flap. The flap can quickly switch the slag discharge position. When the belt conveyor malfunctions or needs maintenance, the flap can be released by the steel wire rope of the control device to close the discharge port and temporarily transport the slag to the slag yard, so as to realize the uninterrupted tunneling and belt conveyor maintenance. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the assembly of a freely switchable flap at the top of a belt conveyor, as proposed in this utility model.

[0014] Figure 2 This is a three-dimensional structural diagram of a freely switchable flap at the top of a belt conveyor, as proposed in this utility model.

[0015] Figure 3 This is a right-side sectional view of the structure of a freely switchable flap at the top of a belt conveyor proposed in this utility model.

[0016] In the diagram: 1. Slag outlet of the mud-water separation equipment; 2. Discharge plate; 3. Slag yard flow plate; 31. Discharge notch; 32. Vibration device; 33. Feed port; 34. Limiting block; 35. Splash shield; 4. Flip plate; 5. Control device; 51. Pulley frame; 52. Wire rope; 53. Winding assembly; 54. Drive device; 6. Belt conveyor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Reference Figure 1-3A freely switchable flap at the top of a belt conveyor includes a slag outlet 1 for a mud-water separation device and a belt conveyor 6. The mud-water separation device separates the mud and water generated during shield tunneling and then transports it in categories. The slag outlet 1 of the mud-water separation device is used to discharge the filtered mud, sand and gravel. Multiple sets of slag outlets 1 are evenly arranged above the belt conveyor 6 to realize the conveying and discharge of mud and sand. The slag outlet 1 of the mud-water separation device is equipped with a discharge plate 2 to facilitate slag discharge. A slag yard flow plate 3 is provided on the lower side of the discharge plate 2. A discharge recess 31 is provided on the end of the slag yard flow plate 3 away from the discharge plate 2. A slag yard is set below the discharge recess 31. A vibration device 32 is provided on the lower side of the discharge recess 31 to ensure reliable slag discharge and avoid mud and sand blockage and accumulation.

[0019] The slag yard sluice plate 3 is provided with a discharge port 33 corresponding to the belt conveyor 6. When the belt conveyor 6 is working normally, the mud and sand are discharged from the discharge port 33. The slag yard sluice plate 3 is provided with a splash guard 35 adapted to the discharge port 33 to prevent mud and sand from splashing and damaging the equipment. The splash guard 35 is provided with a discharge port corresponding to the belt conveyor 6 on the lower side, so that the belt conveyor 6 can transport the mud and sand to the designated location.

[0020] The slag yard sluice plate 3 is hinged to a flap 4 on one side of the discharge port 33. When the belt conveyor 6 fails, the flap 4 flips down to close the discharge port 33, and the slag falls directly into the slag yard through the slag yard sluice plate 3. The side of the discharge port 33 is provided with a limiting block 34 corresponding to the flap 4. The limiting block 34 restricts the position of the flap 4 to ensure that the upper surface of the flap 4 and the upper surface of the slag yard sluice plate 3 are in the same plane, which facilitates the discharge of mud and sand and avoids blockage.

[0021] The slag yard sluice gate 3 is equipped with a control device 5 for controlling the flipping gate 4 to open and close. The control device 5 includes a pulley frame 51, a wire rope 52 and a winding assembly 53. The pulley frame 51 is located between the flipping gate 4 and the winding assembly 53. The upper part of the pulley frame 51 is equipped with a pulley for supporting the traction wire rope 52. One end of the wire rope 52 is connected to the flipping gate 4. The flipping gate 4 is provided with an installation ring corresponding to the wire rope 52 on the side away from the hinge. The other end of the wire rope 52 is connected to the winding assembly 53.

[0022] The winding assembly 53 includes a winding wheel and a winding shaft. The winding shaft passes through the shaft of the winding wheel and is fixedly connected to the winding wheel. The winding shaft is rotatably connected to the slag yard sluice plate 3. The winding shaft is equipped with a drive device 54, which includes a transmission belt and a transmission wheel. One side of the transmission wheel is driven by a crank or a motor.

[0023] In this embodiment, when the belt conveyor 6 is running normally, the flap 4 is pulled up by the wire rope 52 of the control device 5, and the flap 4 is in the open state. The mud and slag discharged from the slag outlet 1 of the mud-water separation equipment falls onto the belt conveyor 6 through the discharge port 33, and the belt conveyor 6 sends the mud and slag to the designated position.

[0024] When the belt conveyor 6 malfunctions, the control device 5 releases the wire rope 52, the flap 4 flips down, blocking the discharge port 33, and the slag falls directly into the slag yard through the slag yard sluice plate 3, so that the shield tunneling can be carried out without stopping the machine and the belt conveyor 6 can be repaired.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A freely switchable flap at the top discharge port of a belt conveyor, comprising a slag outlet (1) of a mud-water separation device and a belt conveyor (6), characterized in that, The slag outlet (1) of the mud-water separation equipment is provided with a discharge plate (2), and a slag yard flow plate (3) is provided on the lower side of the discharge plate (2). The slag yard flow plate (3) is provided with a discharge port (33) corresponding to the belt conveyor (6). A flap (4) is hinged to one side of the discharge port (33) of the slag yard flow plate (3). The slag yard sluice (3) is equipped with a control device (5). The control device (5) includes a pulley frame (51), a wire rope (52) and a winding assembly (53). The upper part of the pulley frame (51) is equipped with a pulley for mounting the wire rope (52). One end of the wire rope (52) is connected to the flip plate (4), and the other end of the wire rope (52) is connected to the winding assembly (53).

2. The freely switchable flap at the upper discharge port of a belt conveyor according to claim 1, characterized in that, The slag outlet (1) of the mud-water separation equipment is provided in multiple sets, which are evenly arranged above the belt conveyor (6).

3. A freely switchable flap at the upper discharge port of a belt conveyor according to claim 1, characterized in that, The slag yard sluice plate (3) has a discharge notch (31) at one end away from the discharge plate (2), and a vibration device (32) is provided on the lower side of the discharge notch (31).

4. A freely switchable flap at the upper discharge port of a belt conveyor according to claim 1, characterized in that, The slag yard sluice (3) is provided with a splash guard (35) adapted to the discharge port (33) on the lower side, and the splash guard (35) is provided with a discharge port corresponding to the belt conveyor (6) on the lower side.

5. A freely switchable flap at the upper discharge port of a belt conveyor according to claim 1, characterized in that, The side of the discharge port (33) is provided with a limiting block (34) corresponding to the flip plate (4), and the upper surface of the flip plate (4) and the upper surface of the slag yard flow plate (3) are located in the same plane.

6. A freely switchable flap at the top discharge port of a belt conveyor according to claim 1, characterized in that, The flap (4) is provided with an installation ring corresponding to the wire rope (52) on the side away from the hinge. The pulley frame (51) is located between the flap (4) and the winding assembly (53). The winding assembly (53) includes a winding wheel and a winding shaft. The winding shaft passes through the shaft of the winding wheel and is fixedly connected to it. The winding shaft is rotatably connected to the slag yard sluice (3). A driving device (54) is provided on the winding shaft.