Flexible deslagging device and tunneling equipment

Abstract

The utility model relates to a flexible deslagging device and tunneling equipment, the flexible deslagging device is used for the tunneling equipment, and the tunneling equipment is provided with a transmission shaft mechanism. The flexible deslagging device comprises a rigid frame provided with a deslagging channel; the at least one flexible body is made of an elastic material, the flexible bodies are distributed on the wall surface of the deslagging channel, each flexible body is provided with a deformation cavity for accommodating fluid to be charged and discharged, and the flexible bodies have an expansion posture after the fluid is charged and a shrinkage posture after the fluid is discharged. The transmission shaft mechanism shuttles back and forth in the slag discharging channel, a slag discharging space is formed between the flexible body and the transmission shaft mechanism, and the channel size of the slag discharging space is adjusted according to the charging and discharging amount of the fluid. The rigid frame is of a pipeline structure, is stable in structural form and can be used for discharging slag stones excavated by tunneling equipment. And the flexible body is driven by the fluid to elastically deform so as to change the deslagging quantity of the deslagging space. Especially, when the flexible body abuts against and is attached to the transmission shaft mechanism, the slag stone can be prevented from being discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a flexible slag discharging device and a tunneling equipment. Background Art

[0002] In tunnel boring projects, especially when using a tunnel boring machine for upward construction, the slag discharging system is a key component. The slag discharging system is responsible for transporting the muck generated during the excavation process from the tunnel interior to the ground surface or other treatment areas. To ensure the efficient operation and safety of the system, valves such as butterfly valves or gate valves are usually installed in the conveying pipeline to control the slag discharge volume and prevent the muck from gushing. By adjusting the opening degree of the valve, the flow rate of the slag discharge can be precisely controlled to meet the tunneling requirements under different geological conditions. In case of an emergency, such as encountering a large amount of rocks or soil mixed with rocks, the valve needs to be quickly closed to prevent the muck from gushing and protect the safety of equipment and personnel.

[0003] For example, the Chinese published document CN117027811A discloses an upward tunneling machine and its slag discharging system. The upward tunneling machine includes the above-mentioned upward tunneling machine slag discharging system. The rotary ring is provided with a muck conditioner circulation channel communicating with the sealing ring cavity, and the muck conditioner circulation channel is communicated with a muck conditioner pipe leading to the cutter head.

[0004] However, when the soil layer bored by the upward tunneling machine contains large rocks or soil mixed with large rocks, due to the large size and high hardness of the large rock particles, it is easy to cause blockage or jamming at the valve, affecting the normal operation of the valve. Therefore, improvement is needed. Summary of the Utility Model

[0005] To overcome the problems existing in the related art, an embodiment of the utility model provides a flexible slag discharging device and a tunneling equipment.

[0006] According to the first aspect of the embodiment of the utility model, a flexible slag discharging device is provided. The flexible slag discharging device is used for a tunneling equipment, and the tunneling equipment is provided with a transmission shaft mechanism. The flexible slag discharging device includes:

[0007] A rigid frame provided with a slag discharging channel;

[0008] At least one flexible body made of an elastic material, the flexible body is distributed on the wall surface of the slag discharging channel, the flexible body has a deformation cavity for accommodating the charging and discharging of fluid, and the flexible body includes an inflated posture after being filled with fluid and a contracted posture after discharging the fluid;

[0009] The transmission shaft mechanism shuttles through the slag discharging channel, and there is a slag discharging space between the flexible body and the transmission shaft mechanism. The channel size of the slag discharging space is adjusted according to the charging amount of the fluid.

[0010] In one embodiment, the flexible body is arranged in a hollow circular ring structure, the deformation cavity is an annular space inside the flexible body, and the flexible body is provided with a charging and discharging joint communicated with the deformation cavity.

[0011] In one embodiment, one side of the flexible body is fixedly attached to the wall surface of the slag discharge channel, and the charging and discharging joint is installed on the rigid frame.

[0012] In one embodiment, the flexible body is in a tubular structure, both ends of the flexible body are hermetically connected to the wall surface of the slag discharge channel, a deformation cavity is formed between the flexible body and the wall surface of the slag discharge channel, and the rigid frame is provided with a charging and discharging joint communicated with the deformation cavity.

[0013] In one embodiment, the flexible body includes a bladder part and connecting parts at both ends of the bladder part, and the thickness of the connecting parts is greater than the wall thickness of the bladder part.

[0014] In one embodiment, the maximum axial width dimension of the flexible body is greater than the maximum aperture of the slag discharge channel.

[0015] In one embodiment, a recessed part is formed by local inward concavity of the slag discharge channel, and the flexible body is connected to the recessed part.

[0016] In one embodiment, the flexible slag discharge device further includes a control valve installed on the rigid frame, and the control valve is located at the input end of the slag discharge channel.

[0017] In one embodiment, the fluid is a gas or a liquid.

[0018] The present invention also discloses a tunneling device, including at least one flexible slag discharge device as described above and a tunneling device. The tunneling device is provided with a transmission shaft mechanism, and the tunneling direction of the tunneling device is at least partially away from the gravity direction.

[0019] The technical solutions provided by the embodiments of the present invention may include the following beneficial effects: The rigid frame is a pipeline structure with a stable structural form, which can discharge the slag stones excavated by the tunneling device. The flexible body elastically deforms under the drive of the fluid to change the slag discharge amount of the slag discharge space. In particular, when the flexible body abuts and fits against the transmission shaft mechanism, the slag discharge can be blocked. Moreover, the flexible body is an elastic structure and is not limited by the change in the volume of particles in the slag stones, thereby improving the operation stability of the flexible slag discharge device and having high use safety.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments in accordance with the present utility model, and are used together with the specification to explain the principles of the present utility model.

[0022] Figure 1 is a schematic cross-sectional structure diagram showing the reduced attitude flexible slag discharging device according to an embodiment.

[0023] Figure 2 is a schematic cross-sectional structure diagram showing the expanded attitude flexible slag discharging device according to an embodiment.

[0024] Figure 3 is a schematic cross-sectional structure diagram showing that the muck can be output from the slag discharging channel according to an embodiment.

[0025] Figure 4 is a schematic cross-sectional structure diagram showing that the flexible member blocks the muck in the expanded attitude in the slag discharging channel for output according to an embodiment.

[0026] Figure 5 is a schematic cross-sectional structure diagram showing the control valve installed on the rigid frame according to an embodiment.

[0027] Figure 6 is a schematic cross-sectional structure diagram showing the combined use of two flexible slag discharging devices according to an embodiment.

[0028] In the figure, there are rigid frame 10; slag discharging channel 11; recess 12; flexible body 20; deformation cavity 21; charging and discharging joint 22; connecting part 23; bladder part 24; transmission shaft mechanism 30; control valve 40. Detailed Embodiments

[0029] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than actual drawings, and should not be construed as a limitation to the present utility model; in order to better illustrate the embodiments of the present utility model, some components in the accompanying drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0030] In the accompanying drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation to the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] In the description of the present utility model, unless otherwise clearly specified and defined, if terms such as "connection" are used to indicate the connection relationship between components, such terms shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] As Figures 1 to 4 shown, the present utility model provides a flexible slag discharging device, and the flexible slag discharging device is used for tunneling equipment, and the tunneling equipment is provided with a transmission shaft mechanism 30. Among them, the tunneling equipment is used for tunneling upward or obliquely upward, and during the tunneling process of the tunneling equipment, slag, stone and soil are output along the flexible slag discharging device to form rapid slag discharging.

[0033] The flexible slag discharging device includes a rigid frame 10 and at least one flexible body 20 made of an elastic material, and the rigid frame 10 is provided with a slag discharging channel 11. The rigid frame 10 is a pipe structure, and its structural form is stable, which can discharge the slag and stone excavated by the tunneling equipment. Preferably, the rigid frame 10 is a tubular structure, and the transmission shaft mechanism 30 passes through the central part of the rigid frame 10. The transmission shaft mechanism 30 shuttles through the slag discharging channel 11, and a slag discharging space is formed between the wall surface of the slag discharging channel 11 and the transmission shaft mechanism 30, so as to facilitate the discharge of muck.

[0034] The flexible body 20 is distributed on the wall surface of the slag discharging channel 11. The flexible body 20 has a deformation cavity 21 for accommodating the charging and discharging of fluid. The flexible body 20 includes an enlarged posture deformed after being filled with fluid and a reduced posture after discharging the fluid. Among them, the channel size of the slag discharging space is adjusted according to the charging amount of the fluid, and the flexible body 20 elastically deforms under the drive of the fluid to change the slag discharging amount of the slag discharging space. In particular, when the flexible body 20 abuts and fits against the transmission shaft mechanism 30, the discharge of slag and stone can be blocked. And, the flexible body 20 is an elastic structure, which is not limited by the change of the particle volume in the slag and stone, so as to improve the operation stability of the flexible slag discharging device and have high use safety.

[0035] In one embodiment, the flexible body 20 is an independent individual, which can realize the independent charging and discharging of fluid, avoid the rigid frame 10 contacting the fluid, and reduce the risks of corrosion and leakage. Optionally, the flexible body 20 is arranged as an annular structure. Optionally, the flexible body 20 is arranged as two, three or four sac-shaped structures to jointly charge and discharge the fluid and realize the multi-lobe joint control of the slag discharging amount of the slag discharging space.

[0036] Optionally, the flexible body 20 is arranged as a hollow circular ring structure, the deformation cavity 21 is an annular space inside the flexible body 20, and the flexible body 20 is provided with a charging and discharging joint 22 communicated with the deformation cavity 21. The flexible body 20 is a circular ring-shaped hollow thin-walled structural member, which can elastically deform circumferentially after the fluid is filled. The rigid frame 10 supports the flexible body 20, and the elastic deformation direction of the flexible body 20 faces the side of the central transmission shaft mechanism 30, so as to realize the control of the size of the slag discharge space by the volume change of the flexible body 20, with flexible adjustment and controllable elastic deformation direction.

[0037] Further, one side of the flexible body 20 is fixedly attached to the wall surface of the slag discharge channel 11, and the two are fixedly connected at the surface where the flexible body 20 is attached to the wall surface of the slag discharge channel 11, so that the deformation of the attached part can be minimized or even not occur, while the free part on the other side can elastically deform, thus realizing the controllability of the deformation area. Further, the charging and discharging joint 22 is installed on the rigid frame 10. The charging and discharging joint 22 is fixed to the rigid frame 10 and communicated with the flexible body 20, thus forming a fluid charging and discharging channel setting with good charging and discharging effect. The position of the charging and discharging joint 22 is fixed, and it can be effectively connected to the fluid input source. For example, if the input source is set as a gas source, the fluid is set as a gas. Specifically, the fluid can be set as air, oxygen, nitrogen or other gases. Or, if the input source is set as a liquid storage device, the fluid is set as a liquid such as water, hydraulic oil, mixed solution, etc.

[0038] In another embodiment, the flexible body 20 and the rigid frame 10 are used in combination to form the deformation cavity 21. Optionally, the flexible body 20 is in a tubular structure, and both ends of the flexible body 20 are hermetically connected to the wall surface of the slag discharge channel 11. A deformation cavity 21 is formed between the flexible body 20 and the wall surface of the slag discharge channel 11, and the rigid frame 10 is provided with a charging and discharging joint 22 communicated with the deformation cavity 21. The flexible body 20 is located inside the rigid frame 10, and the edge is hermetically connected to the rigid frame 10 to form a closed deformation cavity 21. The deformation of the flexible body 20 gradually expands from the middle of the flexible body 20 to both sides, so as to realize the swelling posture or the shrinking posture.

[0039] Preferably, the flexible body 20 includes a capsule part 24 and connecting parts 23 at both ends of the capsule part 24. The thickness of the connecting parts 23 is greater than the wall thickness of the capsule part 24. The connecting parts 23 are in an annular structure and are arranged at both ends of the capsule part 24. The connecting parts 23 are fixedly connected to the rigid frame 10 to form a connecting structure. The connecting parts 23 and the rigid frame 10 can be locked by fasteners; or, the connecting parts 23 and the rigid frame 10 can be locked by a clamp; or, the connecting parts 23 and the rigid frame 10 can be adhesively bonded with an adhesive and combined with fasteners for locking.

[0040] The bladder part 24 is a thin-walled structural member, which is suspended between the wall surface of the bladder part 24 and the rigid frame 10 through the connecting part 23 to facilitate the filling and discharging of fluid. Preferably, the thickness of the bladder part 24 is balanced. During the fluid filling process, the middle part of the bladder part 24 gradually bulges outwards to form a convex structure. Preferably, the wall thickness of the bladder part 24 is locally thinned. During the fluid filling process, the thin-walled part of the bladder part 24 gradually bulges outwards to form a directional convex structure.

[0041] The flexible body 20 is placed inside the rigid frame 10 to control deformation. Among them, the main deformation function and function of the flexible body 20 are to control the on-off of the slag discharge space. As a preference, the maximum axial width dimension of the flexible body 20 is greater than the maximum aperture of the slag discharge channel 11. The axial width of the flexible body 20 is the dimension of the flexible body 20 in the axial direction of the axis of the slag discharge channel 11. When the axial width of the flexible body 20 is large, the relative deformation amount of the flexible body 20 can be reduced in the expanded posture, the wall thickness change of the flexible body 20 can be reduced, and the structural strength can be improved.

[0042] As a preference, the maximum axial width dimension of the flexible body 20 is greater than the maximum aperture of the slag discharge channel 11 to improve the effectiveness of the deformation control of the flexible body 20.

[0043] The slag discharge channel 11 can be set as a pipe body structure with equal diameter or a special-shaped pipe structure with non-equal diameter. In an embodiment, a concave part 12 is formed locally in the slag discharge channel 11, and the flexible body 20 is connected to the concave part 12. The concave part 12 is set as an arc-shaped concave. When the flexible body 20 fits on the wall surface of the concave part 12, the volume of the deformation cavity 21 can be enlarged, so that the fluid filling and discharging process is more balanced and the support effect is improved, and the support effect on the muck is increased.

[0044] The flexible body 20 can be made of elastic materials such as rubber; or, the flexible body 20 can be made of rigid materials with elastic deformation. In a preferred embodiment, a wear-resistant layer is provided on the surface of the flexible body 20. The wear-resistant layer is compounded on the surface of the flexible body 20. For example, the wear-resistant layer is made of steel sheets, silicon wafers or other rigid materials to improve wear resistance.

[0045] As Figures 3 to 6 shown, on the basis of the above embodiment, further, the flexible slag discharge device further includes a control valve 40 installed on the rigid frame 10, and the control valve 40 is located at the input end of the slag discharge channel 11. The control valve 40 is used to control the opening channel of the slag discharge channel 11. When it is difficult for the control valve 40 to close when blocked by muck, fluid is filled into the flexible body 20 for secondary control to improve the use safety of the slag discharge channel 11. The control valve 40 and the fluid input device of the flexible body 20 are controlled in a linkage manner, so as to further improve the use safety of the tunneling equipment and improve the construction safety.

[0046] The flexible slag discharge device disclosed in the above embodiment is applied to a tunneling device, wherein the tunneling device includes at least one flexible slag discharge device and a tunneling device, the tunneling device is provided with a transmission shaft mechanism 30, and the tunneling direction of the tunneling device at least partially deviates from the gravity direction. Optionally, one flexible slag discharge device is provided to form a double opening and closing control of the slag discharge channel 11. Optionally, two flexible slag discharge devices are provided, and the two flexible slag discharge devices are coaxially arranged to achieve double control of the slag discharge channel 11.

[0047] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0048] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A flexible slag discharging device, the flexible slag discharging device is used for tunneling equipment, and the tunneling equipment is provided with a transmission shaft mechanism, characterized in that, The flexible slag discharging device includes: A rigid frame provided with a slag discharging channel; At least one flexible body made of an elastic material, the flexible body being distributed on the wall surface of the slag discharging channel, the flexible body having a deformation cavity for accommodating fluid charging and discharging, and the flexible body including an inflated posture deformed after filling with fluid and a reduced posture after discharging the fluid; The transmission shaft mechanism shuttles through the slag discharging channel, and there is a slag discharging space between the flexible body and the transmission shaft mechanism, and the channel size of the slag discharging space is adjusted according to the fluid charging amount.

2. The flexible slag discharging device according to claim 1, characterized in that, The flexible body is arranged as a hollow circular ring structure, the deformation cavity is an annular space inside the flexible body, and the flexible body is provided with a charging and discharging joint communicated with the deformation cavity.

3. The flexible slag discharging device according to claim 2, characterized in that, One side of the flexible body is fixedly attached to the wall surface of the slag discharging channel, and the charging and discharging joint is installed on the rigid frame.

4. The flexible slag discharging device according to claim 1, wherein, The flexible body is in a tubular structure, both ends of the flexible body are hermetically connected to the wall surface of the slag discharging channel, a deformation cavity is formed between the flexible body and the wall surface of the slag discharging channel, and the rigid frame is provided with a charging and discharging joint communicated with the deformation cavity.

5. The flexible slag discharging device according to claim 4, characterized in that, The flexible body includes a bladder portion and connecting portions located at both ends of the bladder portion, and the thickness of the connecting portions is greater than the wall thickness of the bladder portion.

6. The flexible slag discharging device according to claim 1, wherein, The maximum axial width dimension of the flexible body is greater than the maximum aperture of the slag discharging channel.

7. The flexible slag discharging device according to claim 1, wherein The slag discharging channel is locally concave to form a recessed portion, and the flexible body is connected to the recessed portion.

8. The flexible slag discharging device according to claim 1, characterized in that, The flexible slag discharging device further includes a control valve installed on the rigid frame, and the control valve is located at the input end of the slag discharging channel.

9. The flexible slag discharging device according to claim 1, characterized in that, The fluid is a gas or a liquid.

10. A tunneling device, characterized in that, It includes at least one flexible slag discharging device as described in any one of claims 1-9 and a tunneling device, the tunneling device is provided with a transmission shaft mechanism, and the tunneling direction of the tunneling device is at least partially away from the gravity direction.

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