Spiral dredging device

Abstract

The utility model relates to a spiral dredging device which is used for dredging a spiral conveying mechanism of a tunneling main machine, and the spiral conveying mechanism comprises a conveying pipe and a spiral shaft located in the conveying pipe. The spiral dredging device comprises a spiral part which is spirally bent, and the screw pitch of the spiral part is the same as that of the spiral shaft; the driving part drives the spiral part to rotate; and the dredging mechanism is mounted on the spiral piece, and the dredging mechanism is used for impacting and dredging the muck in the conveying pipe. The spiral piece can be matched with the spiral shaft to do spiral motion and can go deep into any position in the spiral conveying mechanism to dredge muck. The driving piece can drive the spiral piece to spirally move, so that spiral advancing is achieved. And the dredging mechanism can impact the muck after the spiral piece moves in place, so that the blocked part of the spiral conveying mechanism is dredged.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a spiral dredging device. Background Technology

[0002] When a tunneling machine is excavating a side passage, the excavated soil is output through a screw conveyor mechanism configured on the machine. This screw conveyor mechanism includes a conveying pipe and a screw shaft located within the pipe. The screw shaft is equipped with helical blades, and the excavated soil is spirally output along these blades. For example, the publication document with announcement number CN118148652A provides a multi-mode tunneling machine.

[0003] Due to excessive resistance and large particle size during the transport of excavated soil within the conveying pipe, the auger shaft is prone to blockage and stoppage, preventing timely discharge of the excavated soil. The spiral structure of the auger shaft presents technical challenges in clearing blockages, especially during construction. When soil pressure acts on the excavation face of the tunneling equipment, the conveying pipe cannot be opened for side cleaning; otherwise, soil could easily flow into the tunnel, causing construction accidents. Therefore, the clearing method for the auger conveying mechanism needs improvement. Utility Model Content

[0004] To overcome the problems existing in related technologies, this utility model provides a spiral unblocking device to solve the technical problem of difficulty in unblocking slag and soil blockage in spiral conveying mechanisms.

[0005] According to a first aspect of the present invention, a spiral unblocking device is provided for unblocking the spiral conveying mechanism of a tunneling machine, the spiral conveying mechanism including a conveying pipe and a spiral shaft located within the conveying pipe, the spiral unblocking device comprising:

[0006] A helical component that is curved in a spiral shape, wherein the pitch of the helical component is the same as the pitch of the helical shaft;

[0007] A driving component drives the spiral component to rotate;

[0008] A dredging mechanism is installed on the spiral component, and the dredging mechanism is used to impact and dredge the slag and soil in the conveying pipe.

[0009] In one embodiment, the unblocking mechanism includes a jetting assembly, which includes a nozzle and a feeding component. The nozzle is mounted on the spiral member, and the feeding component communicates with the nozzle. The feeding component delivers a preset pressure fluid to the nozzle, which impacts the inside of the delivery pipe.

[0010] In one embodiment, the nozzle is located at the end and / or side of the auger.

[0011] In one embodiment, the injection assembly includes a delivery pipe that passes through the auger; or,

[0012] The delivery pipe is embedded or fitted onto the outer side of the spiral component.

[0013] In one embodiment, the unblocking mechanism includes a vibrator mounted on the auger, the vibrator driving at least a portion of the auger to vibrate at a preset frequency.

[0014] In one embodiment, the vibrator is mounted at the end of the helical member.

[0015] In one embodiment, the helical element is a helical tube.

[0016] In one embodiment, the spiral unblocking device further includes a mounting base, the drive component is mounted on the mounting base, and the mounting base is detachably connected to the delivery pipe.

[0017] In one embodiment, the spiral unblocking device further includes a mounting bracket assembly, the drive member is mounted on the mounting bracket assembly, and the mounting bracket assembly supports the spiral member extending into the delivery pipe.

[0018] In one embodiment, a tunneling head is detachably mounted at the end of the auger.

[0019] The technical solution provided by the embodiments of this utility model can include the following beneficial effects: the auger can be adapted to the helical movement of the auger shaft, and can penetrate deep into any position within the auger conveying mechanism to dredge the slag. The drive component can drive the auger to move in a helical motion, thereby realizing the auger's forward movement. The dredging mechanism can impact the slag after the auger has moved to its position, thereby clearing the blockage in the auger conveying mechanism and improving the ease of dredging the auger conveying mechanism. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] Figure 1 This is a schematic diagram of the structure of a screw conveyor according to an embodiment.

[0022] Figure 2 This is a schematic diagram illustrating a spiral unblocking device for unblocking spiral conveying mechanisms, according to one embodiment.

[0023] Figure 3 This is a schematic diagram illustrating a manually driven spiral unclogging device according to one embodiment.

[0024] Figure 4This is a partial schematic diagram of a spraying assembly according to one embodiment.

[0025] Figure 5 This is a partial schematic diagram of a vibrator according to one embodiment.

[0026] Figure 6 This is a schematic diagram illustrating a mounting bracket assembly for a spiral unclogging device according to one embodiment.

[0027] In the figure, there is a spiral dredging device 10; a spiral component 11; a dredging mechanism 12; a spraying assembly 121; a nozzle 1211; a vibrator 122; a tunneling head 123; a drive component 13; a rotating disk 131; a power motor 132; a mounting frame assembly 14; a spiral conveying mechanism 20; a conveying pipe 21; and a spiral shaft 22. Detailed Implementation

[0028] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] like Figures 1 to 3 As shown, this utility model provides a spiral dredging device for dredging the spiral conveying mechanism of a tunneling machine. The spiral conveying mechanism includes a conveying pipe and a spiral shaft located inside the conveying pipe. The spiral shaft is provided with spirally protruding spiral blades, and a spiral-shaped space for conveying excavated soil is formed between the spiral blades and the inner wall of the conveying pipe. As the spiral shaft rotates, the excavated soil is conveyed along the spiral conveying mechanism under the drive of the spiral blades.

[0030] The spiral unblocking device includes a spiral component, a driving component, and an unblocking mechanism. The spiral component is helically curved and can be a tubular, plate-shaped, or columnar spiral structure. The pitch of the spiral component is the same as the pitch of the spiral shaft to accommodate rotation of the spiral shaft to any depth. Preferably, the spiral component is a spiral tube.

[0031] The driving component drives the screw component to rotate, causing the screw component to rotate in a spiral, thereby moving forward or backward along the screw conveyor mechanism.

[0032] In an alternative embodiment, the drive is manually driven. For example, the drive is configured as a rotating disk fixed to one end of the screw, with the rotation center of the rotating disk coinciding with the rotation center line of the screw.

[0033] In another alternative embodiment, the drive element is power-driven. For example, the drive element is configured as a gear disk and a power motor, with the power motor driving the gear disk via a drive gear. The gear disk is fixed to one end of the helical member, and the rotation center of the gear disk coincides with the rotation center line of the helical member. Alternatively, the drive element is configured as a pulley and a power motor, with the pulley and the drive wheel of the power motor connected by a belt.

[0034] The drive unit drives the auger to rotate, which can achieve initial dredging of the slag and debris.

[0035] Furthermore, the auger is also equipped with a clearing mechanism, which is used to impact and clear the slag and soil inside the conveying pipe. The clearing mechanism is located on the auger and moves to the vicinity of the blockage area of ​​the auger conveying mechanism as the auger rotates.

[0036] The unblocking mechanism can output impact force to impact the slag and soil in the blocked area, thereby clearing the screw conveyor mechanism. The unblocking mechanism can use gas or liquid impact, or employ vibration impact at a preset frequency to effectively clear the slag and soil.

[0037] Therefore, the auger component can adapt to the helical motion of the auger shaft, allowing it to reach any position within the auger conveyor mechanism to clear blockages. The clearing mechanism impacts the blockages in the auger component after it reaches its designated position, thereby clearing blockages and improving the ease of clearing blockages in the auger conveyor mechanism.

[0038] In one embodiment, the unblocking mechanism employs a fluid impact unblocking spiral conveyor mechanism, wherein the unblocking mechanism includes a jetting component for conveying fluid at a preset pressure toward the conveying pipe, so as to cause the fluid to impact the slag.

[0039] like Figures 2 to 4 As shown, optionally, the jetting assembly includes a nozzle and a feeder. The nozzle is mounted on the auger, and the feeder is connected to the nozzle. The feeder delivers a preset pressure fluid that impacts the inside of the delivery pipe to the nozzle.

[0040] Optionally, the feeding device can be configured as a pumping mechanism that can deliver liquid at a preset pressure to the nozzle to flush away the slag in the blocked area, thereby clearing the blockage.

[0041] Optionally, the feeding device is configured as a pneumatic mechanism that can deliver gas at a preset pressure to the nozzle to flush away the slag in the blocked area, thereby clearing the blockage.

[0042] Both liquids and gases are fluids and will not further clog the construction waste. Under preset pressure, the fluids can impact the construction waste in the clogged area, thereby clearing the blockage. High-pressure water can be used as the fluid.

[0043] As a fluid output point, the nozzle can limit the output flow rate and output pattern of the fluid, thereby achieving directional output. For example, the nozzle is located at the end of a screw component, so that it moves forward with the screw component and outputs the fluid.

[0044] Optionally, the nozzle is located on the side of the auger, which can impact the slag in the blockage area from the side, and can also prevent the nozzle from wearing or getting blocked during the spiral advance of the auger.

[0045] Preferably, the nozzle's output direction is inclined relative to the auger, thus creating an inclined forward impact, which improves the effect of clearing the air forward while protecting the nozzle.

[0046] The injection assembly includes a delivery pipe, which is a conduit for conveying fluid to facilitate directional fluid delivery.

[0047] In one embodiment, a conveying pipe is inserted through a spiral member, the spiral member having a tubular space, and the conveying pipe shuttles through the tubular space.

[0048] In another embodiment, the outer surface of the spiral component has a recessed mounting groove, and the conveying pipe is embedded in the mounting groove to ensure a tight fit between the two. Alternatively, the conveying pipe can be fixed to the outer surface of the spiral component by welding to achieve a tight fit.

[0049] like Figures 2 to 5 As shown, in one embodiment, the unblocking mechanism uses vibration to impact the slag in the blocked area, thereby clearing the slag from the blocked area. The unblocking mechanism includes a vibrator installed on the auger, which drives at least a portion of the auger to vibrate at a preset frequency.

[0050] The vibrator outputs vibrational force, which impacts the blocked area, thereby breaking up the debris and achieving a clearing effect. Optionally, the vibrator uses a shaking motion to loosen and dislodge the blockage. Alternatively, the vibrator uses a reciprocating telescopic impact conveying motion in the back-and-forth direction to clear the blockage.

[0051] A vibrator can drive a screw component to vibrate. The vibrator can be installed at the end or middle of the screw component to transmit vibration force.

[0052] Preferably, the vibrator is installed at the end of the auger to vibrate the end of the auger, so that the vibration area is close to or at the blockage, thereby improving the unblocking efficiency.

[0053] The spiral component is adapted to the spiral conveyor mechanism, and the spiral unblocking device is connected to the spiral conveyor mechanism so that the two can be used together.

[0054] In an optional embodiment, the spiral unblocking device further includes a mounting base, a drive member mounted on the mounting base, and the mounting base detachably connected to the conveying pipe. In this embodiment, the mounting base is slidably connected to the conveying pipe, the drive member is mounted on the mounting base, and slides as the spiral of the spiral member penetrates deeper into the spiral conveying mechanism.

[0055] The mounting base and the delivery pipe are slidably and detachably connected to adapt to different working conditions and improve the flexibility of use.

[0056] like Figures 3 to 6 As shown, in another alternative embodiment, the spiral unblocking device further includes a mounting bracket assembly, on which a drive member is mounted, and the mounting bracket assembly supports the spiral member extending into the conveying pipe. In this embodiment, the mounting bracket assembly and the conveying pipe are relatively independent, and the drive member is mounted on the mounting bracket assembly and drivenly connected to the spiral member. The mounting bracket assembly is movable relative to the conveying pipe and slides as the spiral member spirals deeper into the spiral conveying mechanism.

[0057] The mounting base and the conveying pipe are set up independently so that the mounting bracket assembly can be moved to the position of the screw conveyor when needed, improving the flexibility of use.

[0058] In one embodiment, a tunneling head is detachably mounted at the end of the auger. The tunneling head can be made of wear-resistant material or a drill bit structure adapted for tunneling, facilitating the auger's insertion into the excavated soil for entry and unblocking. The tunneling head is replaceable; different tunneling heads can be used depending on the type of blockage to achieve different unblocking functions. For example, the tunneling head can be a pointed, wedge-shaped, or helical solid drill bit structure; or, the tunneling head can be configured as a nozzle, a vibrator's vibration output end, etc., to achieve fluid impact or vibration impact.

[0059] It is worth mentioning that, where there is no conflict, the above embodiments can be combined to further enrich the unblocking methods of the spiral unblocking device.

[0060] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of this application and include common knowledge or customary technical means in the art that are not disclosed in this invention.

Claims

1. A spiral unblocking device for unblocking the spiral conveying mechanism of a tunneling machine, the spiral conveying mechanism comprising a conveying pipe and a spiral shaft located within the conveying pipe, characterized in that, The spiral unblocking device includes: A helical component that is curved in a spiral shape, wherein the pitch of the helical component is the same as the pitch of the helical shaft; A driving component drives the spiral component to rotate; A dredging mechanism is installed on the spiral component, and the dredging mechanism is used to impact and dredge the slag and soil in the conveying pipe.

2. The spiral unblocking device according to claim 1, characterized in that, The unblocking mechanism includes a jetting assembly, which includes a nozzle and a feeding component. The nozzle is installed on the spiral component, and the feeding component is connected to the nozzle. The feeding component delivers a preset pressure fluid to the nozzle, which impacts the inside of the delivery pipe.

3. The spiral unblocking device according to claim 2, characterized in that, The nozzle is located at the end and / or side of the auger.

4. The spiral unblocking device according to claim 2, characterized in that, The injection assembly includes a delivery pipe that passes through the auger; or... The delivery pipe is embedded or fitted onto the outer side of the spiral component.

5. The spiral unblocking device according to claim 1, characterized in that, The unblocking mechanism includes a vibrator installed on the spiral component, which drives at least a portion of the spiral component to vibrate at a preset frequency.

6. The spiral unblocking device according to claim 5, characterized in that, The vibrator is installed at the end of the helical component.

7. The spiral unblocking device according to claim 1, characterized in that, The spiral component is a spiral tube.

8. The spiral unblocking device according to claim 1, characterized in that, The spiral unblocking device also includes a mounting base, the driving component is mounted on the mounting base, and the mounting base is detachably connected to the conveying pipe.

9. The spiral unblocking device according to claim 1, characterized in that, The spiral unblocking device further includes a mounting bracket assembly, the drive component is mounted on the mounting bracket assembly, and the mounting bracket assembly supports the spiral component extending into the delivery pipe.

10. The spiral unblocking device according to claim 1, characterized in that, The end of the spiral component is detachably fitted with a tunneling head.

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