A device for extending a tunnel pipeline of a slurry machine

Abstract

The present application relates to the technical field of shield machine, especially a device for extending tunnel pipeline of slurry machine, comprising a shield trolley support structure frame, a transverse guide rail is installed inside the shield trolley support structure frame, a travelling trolley is movably installed on the transverse guide rail, and a slurry conveying pipeline is connected to the shield trolley support structure frame through the travelling trolley. The device for extending tunnel pipeline of slurry machine utilizes the zigzag and movable characteristics of the cooperation between the steel pipe and the pipe clamp, connects multiple steel pipes together through the pipe clamp, and arranges the steel pipes on a travelling beam through the travelling trolley, which is similar to a bending ruler. The steel pipe is bent in a V shape when the slurry pipe is extended, so as to realize the extension and retraction of the slurry pipeline. The side-hung type pressurized material crushing mechanism is arranged at the connecting end of the pipe clamp, which can not only crush the sand and stone blocks in the slurry in the pipeline, but also increase the conveying efficiency of the crushing end through the auxiliary pressurizing system, so as to improve the internal material guiding and crushing effect.

Description

Technical Field

[0001] This invention relates to the field of tunnel boring machine technology, and in particular to a device for extending tunnel pipelines using a slurry machine. Background Technology

[0002] Slurry balance shield tunneling machines are increasingly widely used in tunnel excavation. The machines are also developing towards larger diameters, leading to a corresponding increase in the size of slurry pipelines. Slurry circulation pipelines in tunnels are generally connected by steel pipes, typically 6-10 meters or longer. These steel pipes are fixed to the tunnel lining segments and do not move forward with the slurry machine. However, the slurry machine needs to advance slowly and continuously during excavation, and the circulation pipeline must remain continuous. This necessitates a device that can connect the fixed steel pipe to the moving slurry machine, and extend the pipeline to maintain continuity as the slurry machine moves relative to the steel pipe. Previously, hydraulic cylinder-type telescopic pipes were used, but these had complex sealing structures, required high precision in mechanical manufacturing, were expensive, and were prone to damage. Replacing the seals after damage was also very complex. Other methods utilize the flexibility of flexible hoses to create telescopic devices. However, because slurry pipelines often contain sand, gravel, and hard rocks, the flexible hoses are easily damaged. Therefore, there is a need for a simple device that can extend large-diameter mud-water circulation pipelines to solve the above problems. Summary of the Invention

[0003] The technical problem to be solved by this invention is that there is currently a great need in the market for a simple device that can extend large-diameter mud-water circulation pipelines.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a device for extending the tunnel pipeline of a slurry machine, including a shield trolley support structure frame, a transverse guide rail installed inside the shield trolley support structure frame, a traveling trolley movably installed on the transverse guide rail, and a slurry conveying pipeline connected inside the shield trolley support structure frame through the traveling trolley.

[0005] The mud and water conveying pipeline includes a steel pipe and a pipe clamp installed at the connection end of the steel pipe. A side-mounted pressure crushing mechanism is installed on the pipe clamp.

[0006] The trolley is mounted on a horizontal guide rail via two side wheels.

[0007] The lower end of the traveling trolley is movably equipped with a bottom assembly frame for assembling pipe clamps.

[0008] The outer side of the pipe clamp has an outwardly protruding lateral mounting seat, through which the pipe clamp is inserted into the bottom mounting frame and connected to the traveling trolley.

[0009] The side-mounted pressurized crushing mechanism includes an outer first control motor, an outer second control motor, an internal adjusting seat, elastic telescopic pressurizing blades installed on the outer surface of the internal adjusting seat, and an internal crushing unit.

[0010] The control shaft of the outer first control motor is inserted into the clamp and connected to the elastic telescopic booster blade, while the control shaft of the outer second control motor is inserted into the clamp and connected to the internal crushing unit via transmission.

[0011] All the pipe clamp assembly end openings have end reduction rings.

[0012] An embedded electric heating ring is fixedly assembled inside the end constriction ring.

[0013] The elastic telescopic booster blade includes a lateral fixed booster blade fixed on the outer side of the internal adjustment seat and an elastic telescopic blade elastically inserted into the lateral telescopic groove of the lateral fixed booster blade. The internal crushing unit includes an internal assembly frame fixed inside the pipe clamp, two crushing rollers installed inside the internal assembly frame, and a lateral transmission assembly for synchronously driving the crushing rollers and the second control motor on the outside.

[0014] The outermost end of the steel pipe in the mud and water conveying pipeline is equipped with a connecting bend.

[0015] The beneficial effects of this invention are:

[0016] (1) The device for extending the tunnel pipeline of the slurry machine of the present invention utilizes the bending and movable characteristics of the steel pipe and the pipe clamp to connect multiple sections of steel pipe together through the pipe clamp, and arranges them on a traveling beam through a traveling trolley. The shape is similar to a bending ruler. When the slurry pipe is extended, the steel pipe is bent in a V-shape to realize the extension and retraction of the slurry pipeline.

[0017] (2) A side-mounted pressurized crushing mechanism is installed at the pipe clamp connection end, which can not only crush the sand and gravel in the mud and water inside the pipe, but also increase the conveying efficiency of the crushing end through the auxiliary pressurization system, and improve the internal material guiding and crushing effect.

[0018] (3) The side-mounted pressurized crushing mechanism is integrated on different pipe clamps, with a reasonable structural layout and high space utilization.

[0019] (4) The power unit is located on the outside of the pipe clamp for easy maintenance and control in the future;

[0020] (5) The elastic telescopic pressurizing blades and the internal crushing unit are both located inside the pipe clamp connection end. The method of crushing first and then pressurizing can improve the internal conveying efficiency and increase the safety and durability of the components.

[0021] (6) By crushing and pressurizing the internal connection end, the conveying stability and safety of the entire mud and water conveying equipment can be improved, and the difficulty of subsequent processing can be reduced, thereby improving the durability of subsequent processing equipment. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the present invention in its stored state.

[0025] Figure 3 This is a schematic diagram of the structure of the present invention in its unfolded state.

[0026] Figure 4 This is a schematic diagram of the side-mounted pressurized crushing mechanism in this invention. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Figure 1 , Figure 2 , Figure 3 and Figure 4 The device shown is for extending the tunnel pipeline of a slurry machine, including a shield trolley support structure frame 1, a transverse guide rail 2 installed inside the shield trolley support structure frame 1, a traveling trolley 3 movably installed on the transverse guide rail 2, and a slurry conveying pipeline 4 connected inside the shield trolley support structure frame 1 through the traveling trolley 3.

[0030] To facilitate assembly and enhance functionality, the mud and water conveying pipeline 4 includes a steel pipe 41 and a pipe clamp 42 installed at the connection end of the steel pipe 41. A side-mounted pressure crushing mechanism 5 is installed on the pipe clamp 42.

[0031] To accommodate the top-mounted guide, the trolley 3 is mounted on the horizontal guide rail 2 via wheels on both sides.

[0032] The slurry delivery pipeline of a slurry balance shield tunneling machine is generally connected via a pipeline, typically 6-10 meters or more long. During tunneling, the slurry machine needs to advance continuously and cannot drag the pipeline fixed to the tunnel segments along with it. Furthermore, extending the pipeline in the tunnel also requires increments of 6-10 meters. The pipeline extension device of this invention utilizes the flexible and movable characteristics of the steel pipe 41 and the pipe clamp 42 to connect the steel pipe 41 fixed to the tunnel to the slurry machine, allowing the slurry machine to move continuously forward without dragging the pipeline. When it is necessary to extend the tunnel slurry pipeline, the steel pipe 41 in this device can be disconnected from the tunnel pipeline and moved forward to complete the extension of the tunnel pipeline.

[0033] Considering the mobility of the V-shaped support of steel pipe 41, a traveling trolley 3 is used to connect and move the support.

[0034] Considering that steel pipe 41 needs to be bent, multiple sections of steel pipe are connected together at the end of steel pipe 41 using pipe clamp 42.

[0035] To facilitate the bottom movable assembly, the lower end of the traveling trolley 3 is movably equipped with a bottom assembly frame 31 for the movable assembly pipe clamp 42.

[0036] To facilitate external assembly, the outer surface of the pipe clamp 42 has an outwardly protruding lateral mounting seat 421, through which the pipe clamp 42 is inserted into the bottom mounting frame 31 and connected to the traveling trolley 3.

[0037] To coordinate with internal pressurization and internal crushing, the side-mounted pressurized crushing mechanism 5 includes an outer first control motor 51, an outer second control motor 52, an internal adjustment seat 53, elastic telescopic pressurization blades 54 installed on the outer surface of the internal adjustment seat 53, and an internal crushing unit 55.

[0038] To cooperate with the external drive, the control shaft of the outer first control motor 51 is inserted into the pipe clamp 42 and connected to the elastic telescopic pressurizing blade 54, and the control shaft of the outer second control motor 52 is inserted into the pipe clamp 42 and connected to the internal crushing unit 55 for transmission.

[0039] The outer first control motor 51 and the outer second control motor 52 are controlled independently. The outer first control motor 51 is used to control the operation of the elastic telescopic pressurizing blade 54, and the outer second control motor 52 is used to control the operation of the internal crushing unit 55.

[0040] To improve its automation level, a pressure monitoring module can be installed on the material receiving surface of the internal crushing unit 55. The extrusion pressure on its surface can be used to monitor whether large solid materials are impacting the surface of the internal crushing unit 55. Once a large solid material impacts the surface of the internal crushing unit 55, the second control motor 52 on the outside will be automatically controlled to run, thereby driving the internal crushing unit 55 to run automatically and crush the large solid impurities. At the same time as crushing, the first control motor on the outside continues to run, which can improve the local material guiding efficiency and ensure the tightness between the large solid material and the internal crushing unit 55, thereby ensuring crushing efficiency.

[0041] In order to improve the pressurization efficiency of the side-mounted pressurized crushing mechanism 5, the pipe clamp 42 has an end constriction ring 422 at the assembly end opening position.

[0042] To enhance the activity of the internal mud and water, an embedded electric heating ring 6 is fixedly installed inside the end constriction ring 422.

[0043] When the temperature is low, the mud and water in the conveying process can be heated by installing an embedded electric heating ring 6 inside the end locking ring 422, thereby avoiding the reduction of conveying efficiency due to low temperature and preventing the mud and water from sticking inside.

[0044] To enhance internal pressurization and internal crushing, the elastic telescopic pressurizing blade 54 includes a laterally fixed pressurizing blade 541 fixed on the outer side of the internal adjusting seat 53 and an elastic telescopic blade 542 elastically inserted into the lateral telescopic groove of the laterally fixed pressurizing blade 541. The internal crushing unit 55 includes an internal assembly frame 551 fixed inside the pipe clamp 42, two crushing rollers 552 installed inside the internal assembly frame 551, and a lateral transmission assembly 553 for synchronously driving the crushing rollers 552 and the outer second control motor 52.

[0045] The steel pipes 41 are connected to each other by the pipe clamps 42 at the connecting ends. The steel pipes 41 can be flipped along the pipe clamps 42. The mud and water are drawn into the steel pipes 41 from the port. When passing through the pipe clamps 42, they first pass through the crushing rollers 552. The two crushing rollers 552 are driven to rotate in opposite directions by the second control motor 52 on the outside, thereby crushing the solid impurities inside the mud and water. The solid impurities are crushed to a suitable size by crushing. Then, they are quickly drawn out of the internal crushing unit 55 by the elastic telescopic blades 542 driven by the first control motor 51 on the outside. Then, they are introduced into the next section of steel pipe 41 by pressurization. Pressurization ensures the conveying efficiency inside different steel pipes 41.

[0046] A lateral telescopic groove is opened on the material receiving surface of the lateral fixed booster blade 541. A compression spring is installed inside the lateral telescopic groove. The elastic telescopic blade 542 is elastically assembled by the compression spring. In this way, after the solid impurities are impacted, the impact force on the blade is reduced, the durability of the blade is guaranteed, and the solid impurities are conveniently introduced into the elastic telescopic booster blade 54. Then, the high-speed rotation of the elastic telescopic booster blade 54 is used to boost and guide the material.

[0047] Two crushing rollers 552 are inserted into the built-in assembly frame 551 through the assembly shafts on both sides and are movably assembled with the built-in assembly frame 551. The lateral transmission assembly 553 includes a driven gear axially fixed on the assembly shaft on one side of the crushing roller 552 and a driving gear axially fixed on the control shaft of the second control motor 52 on the outer side. The driven gear and the driving gear mesh and transmit power.

[0048] To facilitate end connection and material guiding, a connecting bend 7 is installed at the end of the outermost steel pipe 41 of the mud and water conveying pipeline 4.

[0049] By connecting the bend 7, an external conveying pipe can be connected, and the opening angle can be increased to expand the operable range.

[0050] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A device for extending pipelines in slurry tunnels, comprising a shield tunneling trolley support structure (1), characterized in that: The shield trolley support structure (1) is equipped with a horizontal guide rail (2), and a traveling trolley (3) is movably installed on the horizontal guide rail (2). The shield trolley support structure (1) is connected to a mud and water conveying pipeline (4) through the traveling trolley (3). The mud and water conveying pipeline (4) includes a steel pipe (41) and a pipe clamp (42) installed at the connection end of the steel pipe (41). A side-mounted pressure crushing mechanism (5) is installed on the pipe clamp (42).

2. The device for extending tunnel pipelines for slurry machines according to claim 1, characterized in that: The trolley (3) is mounted on the horizontal guide rail (2) via two side wheels.

3. The device for extending tunnel pipelines for slurry machines according to claim 1, characterized in that: The lower end of the traveling trolley (3) is movably equipped with a bottom assembly frame (31) for movably assembling the pipe clamp (42).

4. The device for extending a tunnel pipeline for a slurry machine according to claim 3, characterized in that: The outer side of the pipe clamp (42) has an outwardly protruding lateral mounting seat (421), and the pipe clamp (42) is inserted into the bottom mounting frame (31) through the lateral mounting seat (421) and connected to the traveling trolley (3).

5. The device for extending a tunnel pipeline for a slurry machine according to claim 1, characterized in that: The side-mounted pressurized crushing mechanism (5) includes an outer first control motor (51), an outer second control motor (52), an internal adjustment seat (53), elastic telescopic pressurized blades (54) installed on the outer side of the internal adjustment seat (53), and an internal crushing unit (55).

6. The device for extending a tunnel pipeline for a slurry machine according to claim 5, characterized in that: The control shaft of the outer first control motor (51) is inserted into the clamp (42) and connected to the elastic telescopic booster blade (54), and the control shaft of the outer second control motor (52) is inserted into the clamp (42) and connected to the internal crushing unit (55) for transmission.

7. The device for extending a tunnel pipeline for a slurry machine according to claim 1, characterized in that: The pipe clamp (42) has an end constriction ring (422) at the assembly end opening position.

8. The device for extending a tunnel pipeline for a slurry machine according to claim 7, characterized in that: An embedded electric heating ring (6) is fixedly assembled inside the end constriction ring (422).

9. The device for extending a tunnel pipeline for a slurry machine according to claim 5, characterized in that: The elastic telescopic booster blade (54) includes a lateral fixed booster blade (541) fixed on the outer side of the internal adjusting seat (53) and an elastic telescopic blade (542) elastically inserted into the lateral telescopic groove of the lateral fixed booster blade (541). The internal crusher unit (55) includes an internal assembly frame (551) fixed inside the pipe clamp (42), two crushing rollers (552) installed inside the internal assembly frame (551), and a lateral transmission assembly (553) for synchronously driving the crushing rollers (552) and the outer second control motor (52).

10. The device for extending a tunnel pipeline for a slurry machine according to claim 1, characterized in that: The outermost steel pipe (41) of the mud and water conveying pipeline (4) is equipped with a connecting bend (7).

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