Non-excavation annular penetrating device for underground pipeline

Abstract

The invention discloses an underground pipeline non-excavation annular penetrating device which comprises a crawler, a drilling mechanism, a power mechanism, a deslagging mechanism and an intelligent control system, the drilling mechanism comprises a drilling support, a guide cylinder, a hydraulic cylinder, a flexible shaft and a drill bit, the drilling support is detachably arranged in front of the crawler, the guide cylinder is arranged at the lower end of the drilling support, and the hydraulic cylinder is arranged at the lower end of the drilling support. The hydraulic cylinder is arranged in the drilling support, the flexible shaft is wound around the guide cylinder and connected with the hydraulic cylinder, and the drill bit is arranged at the head end of the flexible shaft. The power mechanism is arranged on the crawler, is connected with the power mechanism and is used for driving the drill bit to operate; the residue discharging mechanism is arranged on the crawler, and a residue discharging suction pipe of the residue discharging mechanism is arranged on the flexible shaft and used for adsorbing soil residues around the drill bit; the intelligent control system is arranged on the crawler and connected with the drilling mechanism, the power mechanism and the deslagging mechanism. By means of the underground pipeline non-excavation annular penetrating device, the construction efficiency and economical efficiency of underground pipeline reinforcement are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground pipelines, and particularly relates to a trenchless loop-penetrating device for underground pipelines. Background Art

[0002] With the acceleration of the urbanization process and the continuous advancement of infrastructure construction, underground infrastructures such as water supply pipelines, utility tunnels, and traffic tunnels are facing multiple safety challenges such as aging, increased load, and geological disturbance.

[0003] Currently, in the prior art, the reinforcement schemes for water supply pipelines all choose to expose the water supply pipelines after open excavation, enhance the compressive capacity by winding prestressed steel wires, and finally pour cement mortar on the outer layer for anti-corrosion. The whole project has a large amount of work, resulting in a large amount of work, a large floor area, a high risk coefficient in deep foundation pit operations, high construction costs, a long cycle, serious noise and dust pollution, low maintenance efficiency, and poor control of maintenance quality. Especially in the core urban areas or ecologically sensitive regions, the limitations of excavation construction are more prominent.

[0004] Finally, the prior art has high requirements for construction space and equipment, and it is difficult to meet the reinforcement requirements of all underground pipelines and tunnels. Summary of the Invention

[0005] The purpose of the present invention is to provide a trenchless loop-penetrating device for underground pipelines to solve the problem that the prior art has high requirements for construction space and equipment.

[0006] To this end, an embodiment of the present invention provides a trenchless loop-penetrating device for underground pipelines.

[0007] The trenchless loop-penetrating device for underground pipelines according to the embodiment of the present invention includes a tracked vehicle, a drilling mechanism, a power mechanism, a slag discharge mechanism, and an intelligent control system. The drilling mechanism includes a drilling support, a guiding cylinder, a hydraulic cylinder, a flexible shaft, and a drill bit. The drilling support is detachably arranged in front of the tracked vehicle. The guiding cylinder is arranged at the lower end of the drilling support. The hydraulic cylinder is arranged inside the drilling support. The flexible shaft is wound around the guiding cylinder, and the flexible shaft is connected to the hydraulic cylinder. The drill bit is arranged at the head end of the flexible shaft. The power mechanism is arranged on the tracked vehicle and is connected to the power mechanism to drive the drill bit to operate. The slag discharge mechanism is arranged on the tracked vehicle. The slag discharge suction pipe of the slag discharge mechanism is arranged on the flexible shaft to adsorb the soil slag around the drill bit. The intelligent control system is arranged on the tracked vehicle and is respectively connected to the drilling mechanism, the power mechanism, and the slag discharge mechanism.

[0008] In some embodiments, the crawler vehicle includes a platform, a lifting lug, two crawlers, and a plurality of connecting plates; the lifting lug is disposed below the platform, one crawler is disposed at each end of the lifting lug, a plurality of the connecting plates are staggeredly arranged in front of the platform, and the drilling bracket is mounted on the plurality of connecting plates.

[0009] In some embodiments, the drilling mechanism further includes guide rails, there are a plurality of the guide rails, and any one of the guide rails can be wound around the guide cylinder, and the flexible shaft is disposed on the guide rails.

[0010] In some embodiments, the trenchless pipe jacking device for underground pipelines further includes: a reaming mechanism, the reaming mechanism includes a support, a hydraulic motor, a sprocket, a chain, and a scraper, the support is disposed on the drilling bracket, the hydraulic motor is disposed inside the support, the hydraulic motor is connected to the hydraulic cylinder, the sprocket is disposed outside the support, the sprocket is connected to the hydraulic motor, the chain is connected to the sprocket, and the chain is wound around the guide cylinder, and the scraper is disposed outside the chain.

[0011] In some embodiments, the reaming mechanism further includes a chain plate, the chain plate is disposed outside the chain, and the chain plate is used to pull the steel strand into the cavity formed by the drill bit and surround it for one week.

[0012] In some embodiments, the reaming mechanism further includes two follower wheels, the two follower wheels are disposed outside the support, and the chain is connected to the follower wheels.

[0013] In some embodiments, the trenchless pipe jacking device for underground pipelines further includes: a lifting mechanism, the lifting mechanism includes a column, a cross beam, a motor, and a winch, the column is disposed on the crawler vehicle, one end of the cross beam is connected to the top end of the column, the other end of the cross beam faces the drilling mechanism, the motor and the winch are both disposed on the cross beam, the motor is used to drive the winch, and the lifting rope on the winch is connected to the drilling bracket.

[0014] In some embodiments, the lifting parameter of the winch is above 1 ton.

[0015] In some embodiments, the trenchless pipe jacking device for underground pipelines further includes: a generator, the generator is disposed on the crawler vehicle, and the generator is connected to the intelligent control system and the crawler vehicle.

[0016] In some embodiments, there are a plurality of the guide cylinders and the guide rails, and one guide cylinder and one guide rail form a set of guide components, and the sizes of each set of guide components are different.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present disclosure. Other features and aspects of the present disclosure will become clearer from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 FIG. 1 is a schematic diagram of a trenchless pipe jacking device for underground pipelines according to an embodiment of the present invention.

[0020] Figure 2 FIG. 2 is a schematic diagram of a crawler vehicle according to an embodiment of the present invention.

[0021] Figure 3 FIG. 3 is another schematic diagram of a crawler vehicle according to an embodiment of the present invention.

[0022] Figure 4 FIG. 4 is a schematic diagram of a drilling mechanism according to an embodiment of the present invention.

[0023] Figure 5 FIG. 5 is a schematic diagram of a reaming mechanism according to an embodiment of the present invention.

[0024] Figure 6 FIG. 6 is a schematic diagram of a lifting mechanism according to an embodiment of the present invention.

[0025] Reference Numerals:

[0026] Trenchless pipe jacking device for underground pipelines 100, crawler vehicle 10, platform 11, lifting lug 12, crawler 13, connecting plate 14, drilling mechanism 20, drilling support 21, guide tube 22, hydraulic cylinder 23, flexible shaft 24, drill bit 25, guide rail 26, power mechanism 30, slag discharging mechanism 40, slag discharging suction pipe 41, intelligent control system 50, reaming mechanism 60, support 61, hydraulic motor 62, sprocket 63, chain 64, follower 65, lifting mechanism 70, column 71, cross beam 72, motor 73, hoist 74, generator 80. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific implementation schemes. However, those skilled in the art should understand that the implementation schemes described below are only used to illustrate the present invention and should not be regarded as limiting the scope of the present invention. All other implementation schemes obtained by those of ordinary skill in the art based on the implementation schemes in the present invention without creative work belong to the scope of protection of the present invention.

[0028] In the present invention, a non-excavation ring-piercing device for underground pipelines has made a breakthrough in the non-excavation prestressed external reinforcement technology. This device drives the drill bit through a flexible shaft and drills along a circular guide cylinder, while simultaneously sweeping the hole along the water flow direction. It can complete the layout and tensioning of prestressed steel strands without excavation and is suitable for all types of underground pipe holes with a diameter of more than 1 m (including circular, horseshoe-shaped, and special-shaped cross-sections). Compared with traditional processes, the present invention significantly improves the construction efficiency and economy of underground pipeline and tunnel reinforcement through technological innovation, providing strong technical support for the maintenance and upgrading of urban infrastructure.

[0029] As Figures 1-6 shown, the non-excavation ring-piercing device 100 for underground pipelines according to an embodiment of the present invention includes a crawler vehicle 10, a drilling mechanism 20, a power mechanism 30, a slag removal mechanism 40, and an intelligent control system 50.

[0030] The drilling mechanism 20 includes a drilling support 21, a guide cylinder 22, a hydraulic cylinder 23, a flexible shaft 24, and a drill bit 25. The drilling support 21 is detachably arranged in front of the crawler vehicle 10. The guide cylinder 22 is arranged at the lower end of the drilling support 21. The hydraulic cylinder 23 is arranged inside the drilling support 21. The flexible shaft 24 is wound around the guide cylinder 22, and the flexible shaft 24 is connected to the hydraulic cylinder 23. The drill bit 25 is arranged at the front end of the flexible shaft 24.

[0031] The power mechanism 30 is arranged on the crawler vehicle 10. The power mechanism 30 is connected to the power mechanism 30 and is used to drive the drill bit 25 to operate. The slag removal mechanism 40 is arranged on the crawler vehicle 10. The slag removal suction pipe 41 of the slag removal mechanism 40 is arranged on the flexible shaft 24 and is used to adsorb the soil slag around the drill bit 25.

[0032] The intelligent control system 50 is arranged on the crawler vehicle 10. The intelligent control system 50 is respectively connected to the drilling mechanism 20, the power mechanism 30, and the slag removal mechanism 40.

[0033] The non-excavation ring-piercing device 100 of the present invention can realize drilling around the circumferential direction of a diameter water conveyance pipeline, automatically adjust the drilling speed and the running speed of the drill bit feed force according to the drilling resistance, improve the drilling speed, reduce environmental pollution, has high equipment utilization and low overall cost, and has the advantages of high automation degree, high construction efficiency, and strong adaptability.

[0034] It can be understood that the intelligent control system 50 can automatically standardize the drilling trajectory, automatically adjust the drilling speed and reaming speed according to the resistance, and record data such as the drilling and reaming trajectories and the relationship function between the output torque value and the feed rate. It realizes the automatic adjustment of the drilling and reaming directions, the feed rate and the propelling force, integrating closed-loop control and detection, with a high level of automation.

[0035] In some embodiments, as Figures 2-3 shown, the crawler vehicle 10 includes a platform 11, lifting lugs 12, two crawlers 13 and a plurality of connecting plates 14; the lifting lugs 12 are arranged below the platform 11, one crawler 13 is arranged at each end of the lifting lugs 12, and a plurality of connecting plates 14 are arranged in a staggered manner in front of the platform 11, and the drilling support 21 is installed on the plurality of connecting plates 14.

[0036] It can be understood that for the crawler vehicle 10 of the present invention, which is prone to getting stuck or overturning when walking on soft soil surfaces, the lifting lugs 12 and the crawlers 13 are designed. Among them, the crawlers 13 are steel crawlers, which improves the environmental adaptability of the underground pipeline trenchless loop piercing device 100.

[0037] In some embodiments, as Figure 4 shown, the drilling mechanism 20 further includes guide rails 26. There are multiple guide rails 26, and any one of the guide rails 26 can be wound around the guide cylinder 22, and the flexible shaft 24 is arranged on the guide rails 26.

[0038] In some embodiments, as Figure 5 shown, the underground pipeline trenchless loop piercing device 100 further includes: a reaming mechanism 60, which includes a support 61, a hydraulic motor 62, a sprocket 63, a chain 64 and a scraper (not shown). The support 61 is arranged on the drilling support 21, a hydraulic motor 62 is arranged inside the support 61, the hydraulic motor 62 is connected to the hydraulic cylinder 23, a sprocket 63 is arranged outside the support 61, the sprocket 63 is connected to the hydraulic motor 62, the chain 64 is connected to the sprocket 63, and the chain 64 is wound around the guide cylinder 22, and a scraper is arranged outside the chain 64.

[0039] In some embodiments, the reaming mechanism 60 further includes chain plates (not shown), and chain plates are arranged outside the chain 64. The chain plates are used to pull the steel strand into the cavity formed by the drill bit 25 and surround it for one week.

[0040] It can be understood that the chain scraper structure designed by the present invention uses a hydraulic motor to drive the sprocket to rotate, the sprocket drives the chain to run, and the scraper protruding from the side of the chain plate cuts and takes out the soil around the pipe wall to form an annular cavity.

[0041] At the same time, the steel strand and the construction required items are pulled into the cavity by the chain plate on the other side and surrounded for one week to complete the reaming and threading operation.

[0042] The chain scraper structure designed by the present invention has a high degree of automation, automatically adjusts the reaming speed, tracks the reaming direction, automatically adjusts the feed rate and the propulsion force, and achieves the expected reaming effect. When the entire reaming is carried out along the water flow direction, it slowly walks along the pipeline alignment direction through the alignment, driving the longitudinal movement of the reaming mechanism to complete the longitudinal reaming operation outside the pipe section.

[0043] In some embodiments, as Figure 5 shown, the reaming mechanism 60 further includes two follower wheels 65, the two follower wheels 65 are arranged outside the support 61, and the chain 64 is connected to the follower wheels 65.

[0044] It can be understood that the follower wheels 65 designed by the present invention optimize the stability of the operation of the chain 64.

[0045] In some embodiments, as Figure 6 shown, the trenchless pipe jacking device 100 for underground pipelines further includes a lifting mechanism 70, the lifting mechanism 70 includes a column 71, a cross beam 72, a motor 73 and a winch 74, the column 71 is arranged on the crawler vehicle 10, one end of the cross beam 72 is connected to the top end of the column 71, the other end of the cross beam 72 faces the drilling mechanism 20, the motor 73 and the winch 74 are both arranged on the cross beam 72, the motor 73 is used to drive the winch 74, and the lifting rope on the winch 74 is connected to the drilling bracket 21.

[0046] In some embodiments, the lifting parameter of the winch 74 is more than 1 ton.

[0047] In the present invention, the device weights of the drilling mechanism 20 and the reaming mechanism 60 exceed 300 kg, and the lifting parameter of the winch 74 being more than 1 ton can achieve the automatic installation, adjustment and loading and unloading of the above-mentioned drilling mechanism 20 and reaming mechanism 60 without relying on external mechanisms.

[0048] In some embodiments, the trenchless pipe jacking device 100 for underground pipelines further includes: a generator 80, the generator 80 is arranged on the crawler vehicle 10, and the generator 80 is connected to the intelligent control system 50 and the crawler vehicle 10.

[0049] In some embodiments, both the guide cylinders 22 and the guide rails 26 are multiple, and one guide cylinder 22 and one guide rail 26 form a set of guide components, and the sizes of each set of guide components are different.

[0050] It can be understood that when the reinforcement pipe diameters of the ultra-large diameter water conveyance pipelines are different, the present invention only needs to replace the guide cylinders 22 and the guide rails 26, install the drill bit 25, and adjust the drilling parameters. The present invention has strong adaptability, a high level of automation, and closed-loop control and detection.

[0051] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention.

[0052] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0053] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0055] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A trenchless loop-through device for underground pipelines, characterized in that, Comprising: A crawler vehicle; A drilling mechanism, the drilling mechanism includes a drilling support, a guide cylinder, a hydraulic cylinder, a flexible shaft and a drill bit. The drilling support is detachably arranged in front of the crawler vehicle. The guide cylinder is arranged at the lower end of the drilling support. The hydraulic cylinder is arranged inside the drilling support. The flexible shaft is wound around the guide cylinder, and the flexible shaft is connected to the hydraulic cylinder. The drill bit is arranged at the front end of the flexible shaft; A power mechanism, the power mechanism is arranged on the crawler vehicle and is connected to the power mechanism for driving the drill bit to operate; A slag discharging mechanism, the slag discharging mechanism is arranged on the crawler vehicle, and the slag discharging suction pipe of the slag discharging mechanism is arranged on the flexible shaft for adsorbing the soil slag around the drill bit; An intelligent control system, the intelligent control system is arranged on the crawler vehicle, and the intelligent control system is respectively connected to the drilling mechanism, the power mechanism and the slag discharging mechanism.

2. The trenchless ring penetration device for underground pipelines according to claim 1, characterized in that The crawler vehicle includes a platform, a lifting lug, two crawlers and a plurality of connecting plates; The lifting lug is arranged below the platform, one crawler is respectively arranged at both ends of the lifting lug, a plurality of the connecting plates are arranged in a staggered manner in front of the platform, and the drilling support is installed on the plurality of connecting plates.

3. The trenchless ring penetration device for underground pipelines according to claim 2, characterized in that The drilling mechanism further includes a guide rail. There are a plurality of the guide rails, and any one of the guide rails can be wound around the guide cylinder, and the flexible shaft is arranged on the guide rail.

4. The trenchless loop-through device for underground pipelines according to claim 3, characterized in that Also comprising: A reaming mechanism, the reaming mechanism includes a support, a hydraulic motor, a sprocket, a chain and a scraper. The support is arranged on the drilling support, the hydraulic motor is arranged inside the support, the hydraulic motor is connected to the hydraulic cylinder, the sprocket is arranged outside the support, the sprocket is connected to the hydraulic motor, the chain is connected to the sprocket, and the chain is wound around the guide cylinder, and the scraper is arranged outside the chain.

5. The trenchless ring penetration device for underground pipelines according to claim 4, characterized in that The reaming mechanism further includes a chain plate, and the chain plate is arranged outside the chain for pulling the steel strand into the cavity formed by the drill bit and surrounding it for one week.

6. The trenchless ring penetration device for underground pipelines according to claim 4, characterized in that The reaming mechanism further includes two follower wheels, and the two follower wheels are arranged outside the support, and the chain is connected to the follower wheels.

7. The trenchless loop piercing device for underground pipelines according to claim 5, wherein, Also comprising: A lifting mechanism, the lifting mechanism includes a column, a cross beam, a motor and a winch. The column is arranged on the crawler vehicle, one end of the cross beam is connected to the top end of the column, the other end of the cross beam faces the drilling mechanism, the motor and the winch are both arranged on the cross beam, the motor is used for driving the winch, and the lifting rope on the winch is connected to the drilling support.

8. The trenchless ring penetration device for underground pipelines according to claim 7, characterized in that The lifting parameter of the winch is above 1 ton.

9. The trenchless loop piercing device for underground pipelines according to claim 7, wherein It further includes: A generator, which is arranged on the crawler vehicle and is connected to the intelligent control system and the crawler vehicle.

10. The trenchless pipe jacking device for underground pipelines according to claim 3, wherein Both the guiding cylinders and the guiding rails are multiple, and one guiding cylinder and one guiding rail form a set of guiding components, and the sizes of each set of guiding components are different.

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