Deviation rectifying device for pipe roofing construction

Abstract

The utility model discloses a deviation rectifying device for pipe roofing construction. The deviation rectifying device comprises a reaming sleeve installed at the front end of a pipe roofing steel pipe, a drill bit installed at the front end of the reaming sleeve, a drill bit guiding deviation rectifying mechanism and a pushing mechanism which are installed in the reaming sleeve, and an unearthing screw located in the pipe roofing steel pipe. The drill bit guiding and deviation rectifying mechanism comprises a telescopic sleeve, and a universal ball mechanism, a first telescopic connecting rod joint, a first universal joint, a control steering gear, a second universal joint, a second telescopic connecting rod joint and a third universal joint which are sequentially connected in the telescopic sleeve, and the front end of the universal ball mechanism is connected with the drill bit. According to the utility model, the orientation of the drill bit can be monitored in real time in the drilling process of the horizontal pipe roofing, deviation of the drill bit can be found in time, irreversible deviation of the pipe roofing steel pipe in the drilling process is prevented, the construction safety is ensured, and good social and economic benefits are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pipe curtain rectification technical field, specifically relates to a rectification device for pipe curtain construction. BACKGROUND

[0002] The existing city underground passage, subway tunnel and other engineering near-distance overpass or underpass existing building construction conditions are increasing. In order to reduce the influence of engineering activities on the existing building, the pipe curtain is built between the existing building and the newly-built engineering, the underground space enclosure structure is formed, and then the engineering construction activities are carried out, thereby reducing the interaction and influence between the two and protecting the safety of the existing building. The track type horizontal spiral drilling method is that the spiral drilling machine is installed on the track, moves back and forth along the track, simultaneously provides the propelling force and the rotating force, the propelling force and the rotating force are transmitted to the drill rod during drilling, the drill rod is composed of the connected spiral drill rods, the first end and the tail of the drill rod are connected with the drilling machine and the drilling tool respectively, the torque and the propelling force are generated by the drilling machine and are transmitted to the drilling tool through the spiral drill rod, the drilling tool rotates and cuts the soil layer, the soil residue is discharged along the spiral drill rod, simultaneously, the drilling machine propels, the operation is repeated, and the casing pipe laying is completed. When the soft and hard uneven stratum is encountered, the direction control is not in place, the direction deflection occurs, and the steel pipe jacking direction deviates. Nowadays, there is lack of a rectification device for pipe curtain construction. SUMMARY

[0003] The utility model wants to solve the technical problem in the prior art, provides a rectification device for pipe curtain construction.

[0004] In order to solve the above technical problems, the utility model adopts the technical scheme: a rectification device for pipe curtain construction, characterized by: including the reaming sleeve installed at the front end of the pipe curtain steel pipe, the drill bit installed at the front end of the reaming sleeve, the drill bit guide rectification mechanism and the propelling mechanism installed in the reaming sleeve and the soil discharging screw located in the pipe curtain steel pipe, the drill bit guide rectification mechanism includes the telescopic sleeve, the universal ball mechanism, the first telescopic connecting rod section, the first universal joint, the control diverter, the second universal joint, the second telescopic connecting rod section and the third universal joint connected in sequence in the telescopic sleeve, and the front end of the universal ball mechanism is connected with the drill bit.

[0005] The rectification device for pipe curtain construction, characterized by: the telescopic sleeve has two telescopic sleeve soil scraping threads outside, the hexagonal telescopic sleeve hexagonal slide block is arranged at the rear end outside of the telescopic sleeve, the inner wall of the telescopic sleeve hexagonal slide block is connected with the outside of the center bearing integrally, and the center bearing ball is arranged in the center bearing.

[0006] The deviation rectifying device for pipe-roof construction has the features that the control steering gear comprises an annular rack, rotating gears, a gear motor, a guide central column, a guide hoop, a worm, a transmission gear set, a worm motor, an external sleeve of the steering controller, a conductive slip ring structure and a control three-axis magnetic sensor; the external diameter of the annular rack is the same as the internal diameter of the telescopic sleeve and is connected by welding, the inner side of the annular rack is a toothed guide rail, and the annular racks are coaxial and parallel; the external diameter of the external sleeve of the steering controller is smaller than the internal diameter of the annular rack, eight rotating gear slots are distributed on the outer side of the external sleeve of the steering controller, four rotating gear slots are divided into a group, the distance between the two groups of rotating gear slots from the front and rear ends of the external sleeve of the steering controller is the same, and a rotating gear middle shaft hole is opened on the side edge of the rotating gear slot; the rotating gear is connected with the rotating gear slot through the rotating gear middle shaft hole by a bearing structure; the rotating gear middle shaft is connected with the gear motor after passing through the rotating gear middle shaft hole, and the gear motor is fixed on the inner wall of the external sleeve of the steering controller; an upper platform and a lower platform are arranged in the external sleeve of the steering controller, guide hoop slots and take-up port sliding grooves are opened on the upper platform and the lower platform, a straight slot-shaped passage is arranged in the middle of the upper platform and the lower platform, the guide hoop slots pass through the upper platform and the lower platform and do not pass through the arc surfaces on the two sides of the straight slot-shaped passage; two front and rear symmetrical worms are arranged on the upper part of the upper platform and the lower part of the lower platform, one gear of the transmission gear set is coaxially connected with one side of the worm, and the other gear of the transmission gear set is coaxially connected with one worm motor; rectangular protrusions are arranged on the upper and lower parts of the guide hoop, a worm thread groove is arranged on the plane of the rectangular protrusion, the worm thread groove is engaged with the worm, and a guide ball groove is arranged on the inner ring surface of the guide hoop; a guide ball hole is arranged on the end of the guide central column, the guide hoop and the guide central column form a bearing structure through the guide ball groove, the guide ball and the guide ball hole, so that the guide central column can independently rotate relative to the guide hoop; a conductive slip ring structure is arranged on the middle part of the guide central column, the conductive slip ring structure comprises a take-up cylinder, a single-axis roller, conductive slip ring balls, brush wires, a conductive rail and a wiring port, one take-up cylinder is arranged on the upper and lower parts of the conductive slip ring structure, and the two take-up cylinders pass through the take-up port sliding grooves of the upper platform and the lower platform respectively; the single-axis roller is located on the two sides of the take-up cylinder and the axis thereof is located on the side of the take-up cylinder, the single-axis roller is in contact with the upper platform and the lower platform; the wiring port is located on the inner side of the take-up cylinder, a cable passes through the take-up cylinder and is connected to each wiring port; the brush wires are connected with the wiring port; the conductive rail is in contact with the brush wires; the conductive rail and the central guide column are a rigid whole; and the control three-axis magnetic sensor is installed on the upper part of the upper platform or the lower part of the lower platform.

[0007] The aforementioned correction device for pipe jacking construction is characterized in that: the front end of the drill bit has a Y-shaped structure, the Y-shaped structure protrudes forward, and a semi-circular scraper is provided at the front end of the Y-shaped structure for easy soil scraping; the rear end of the drill bit is connected to the reaming sleeve; a triaxial magnetic sensor is provided at the center of the drill bit, a drill bolt is provided at the rear end of the drill bit, and a single-pin plug is connected to the rear end of the drill bolt; a circular channel is provided at the axis of the drill bit and the drill bolt, through which the cable for the triaxial magnetic sensor passes and is connected to the single-pin plug; the universal ball mechanism includes a universal ball retaining ring, universal ball bearings, a universal ball, and a single-pin insertion hole; the outer diameter of the universal ball retaining ring is the same as the inner diameter of the telescopic sleeve, and it is fixedly connected to the front end of the telescopic sleeve; the inner side of the universal ball retaining ring is a spherical arc surface with multiple universal ball bearing holes evenly arranged on its arc surface for installing the universal ball bearings; the front end of the universal ball is a drill thread hole, the drill bolt is connected to the drill thread hole, and the bottom of the drill thread hole is a single-pin insertion hole.

[0008] The above-mentioned correction device for pipe curtain construction is characterized in that: the first telescopic link section includes a first telescopic link and a first telescopic link sleeve, the first telescopic link sleeve is coaxially connected to the universal ball joint as a whole, the inner side of the first telescopic link sleeve has a toothed cross section, and the first telescopic link sleeve has a first cable protection tube at its axis; the outer side of the first telescopic link has a gear cross section that meshes with the toothed cross section; the first telescopic link axis has a first telescopic link cable hole, and the outer diameter of the first cable protection tube is smaller than the first telescopic link cable hole so as to protect the cable during the extension and retraction of the first telescopic link section; the bottom of the single pin hole is connected to a cable that passes through the first cable protection tube, and is used to power the drill bit triaxial magnetic sensor and transmit data.

[0009] The No. 1 universal joint includes two universal joint fork shafts, universal joint swivel bearings, a cross shaft, and a rubber hose. The universal joint fork shaft has a cable hole at its center that connects to the cable hole of the No. 1 telescopic link. Each universal joint fork shaft has two symmetrical outer arms on one side, each with a universal joint swivel bearing hole at its end. The universal joint swivel bearing hole has a larger diameter at the middle and smaller diameters at both ends to secure the universal joint swivel bearing. The cross shaft connects to the two universal joint fork shafts via four universal joint swivel bearings, allowing the universal joint fork shafts to rotate. A circular channel is located in the center of the cross shaft; the rubber hose passes through this channel and connects to the cable holes on both sides of the universal joint fork shaft to protect the cable. The rear end of the No. 1 telescopic link is welded to the No. 1 universal joint fork shaft.

[0010] Universal joint No. 2 and Universal joint No. 3 have the same structure as Universal joint No. 1, and telescopic link No. 2 has the same structure as telescopic link No. 1.

[0011] The above-mentioned correction device for pipe curtain construction is characterized in that: a central support for the expanding sleeve is provided inside the expanding sleeve, and the central support for the expanding sleeve is a telescopic hydraulic cylinder.

[0012] The aforementioned correction device for pipe curtain construction is characterized in that: the propulsion mechanism includes a transmission sleeve, a drill rod propeller and a hexagonal drill rod, and a cable extends to the rear of the transmission sleeve and connects to an aviation plug.

[0013] The aforementioned correction device for pipe curtain construction is characterized in that: the drill rod pusher includes three drill rod pushing cylinders.

[0014] The aforementioned correction device for pipe curtain construction is characterized in that: the front end of the hexagonal drill rod is a transmission bolt, which is connected to a No. 3 universal joint through a transmission bolt hole; the transmission bolt shaft has a transmission bolt cable hole that runs through the front and rear for threading cables; the cross section of the hexagonal drill rod is a regular hexagon; and the six edges of the hexagonal drill rod are equidistantly arranged with limit ball grooves, and limit balls for controlling the forward and backward movement of the hexagonal drill rod are provided in the limit ball grooves.

[0015] The aforementioned correction device for pipe jacking construction is characterized in that: flanges are provided at both ends of the ejector screw, and the flanges are reinforced with ribs; the front end of the ejector screw has a rigid socket for connection with an aviation plug; the ejector screw has, from front to back, a hexagonal drill rod driven channel adapted to a hexagonal drill rod and a regular circular channel; the aviation socket and the hexagonal drill rod driven channel are separated by a cable drill rod isolation sleeve; three cable holes are evenly distributed on the outer side of the hexagonal drill rod driven channel; six bolt holes are provided on the outer edge of the flange; the ejector screw and the transmission sleeve are connected and fixed by bolts and nuts; a cable centering plate is fixedly installed in the regular circular channel; a socket fixing plate is fixed on the outer side of the cable centering plate; the socket fixing plate connects various cables to the aviation socket; a cable protection tube is provided between the two cable centering plates; adjacent ejector screws are connected by a spiral cable with aviation plugs at both ends; an external conductive slip ring is fixed on the reaction wall at the rear axis of the pipe jacking machine, used to connect various cables to the operating system and prevent the cables from being twisted and damaged during rotation.

[0016] The beneficial effects of this utility model are that its novel and reasonable design enables real-time monitoring of the drill bit orientation during horizontal pipe curtain drilling. It can promptly detect any deviations in the drill bit, preventing irreversible displacement of the pipe curtain steel pipe during drilling and ensuring construction safety. Connecting all monitoring and operating systems to the operating system via cables ensures convenient observation and operation during construction. When drilling in uneven strata, it can correct deviations by stopping drilling, resulting in more stable hole quality and higher efficiency. Timely correction after drill bit deviation ensures that the deviation generated when the pipe curtain reaches the predetermined position is within the specified allowable range. It has good social and economic benefits and is easy to promote and use.

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic cross-sectional view of the entire drilling process of this utility model;

[0019] Figure 2 This is a cross-sectional view of the inside of the enlarged sleeve of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the overall guiding mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the telescopic sleeve of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the steering controller of this utility model;

[0023] Figure 6 This is a front view of the internal structure of the steering controller of this utility model;

[0024] Figure 7 This is a schematic diagram of the overall structure of the outer sleeve of the steering controller of this utility model;

[0025] Figure 8 This is a schematic diagram of the overall structure of the conductive slip ring of the steering controller of this utility model;

[0026] Figure 9 This is a cross-sectional schematic diagram of the conductive slip ring structure of the steering controller of this utility model;

[0027] Figure 10 This is an exploded view of the universal joint mechanism of this utility model;

[0028] Figure 11 This is a schematic diagram of the overall guide clamp of this utility model;

[0029] Figure 12 This is a schematic diagram of the internal structure of the telescopic connecting rod section of this utility model;

[0030] Figure 13 This is a cross-sectional schematic diagram of the universal ball mechanism of this utility model;

[0031] Figure 14 This is a disassembly diagram of the universal ball mechanism of this utility model;

[0032] Figure 15 This is a cross-sectional schematic diagram of the internal structure of the unearthed screw of this utility model;

[0033] Figure 16 This is a schematic diagram of the connection method between the hexagonal drill rod and the universal joint mechanism of this utility model;

[0034] Figure 17 This is a cross-sectional schematic diagram of the internal structure of the drill bit of this utility model;

[0035] Figure 18 This is a schematic diagram of the first working state of the drill bit guiding and correction mechanism of this utility model;

[0036] Figure 19 This is a schematic diagram of the second working state of the drill bit guiding and correction mechanism of this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Pipe draping steel pipe; 2. Expanding sleeve; 3. Expanding sleeve central support; 4. No. 1 telescopic connecting rod section;

[0039] 4-1. Telescopic Linkage No. 1; 4-2. Telescopic Linkage No. 1 Sleeve;

[0040] 4-3, Cable hole for telescopic linkage No. 1; 4-4, Cable protection tube No. 1; 5, Telescopic sleeve;

[0041] 5-1. Telescopic sleeve with scraping thread; 5-2. Telescopic sleeve with hexagonal slider; 5-3. Centered bearing;

[0042] 5-4. Centered bearing ball; 6. Universal ball mechanism; 6-1. Universal ball; 6-2. Universal ball retaining ring;

[0043] 6-3. Universal ball bearing; 6-4. Drill bit threaded hole; 6-5. Universal ball bearing hole; 6-6. Single pin insertion hole;

[0044] 7. Drill bit; 7-1. Drill bit bolt; 7-2. Drill bit triaxial magnetic sensor; 7-3. Single-pin connector;

[0045] 7-4, Semi-circular scraper; 8, Universal joint No. 1; 9, Telescopic linkage No. 2; 10, Steering control unit;

[0046] 10-1. Circular gear; 10-2. Rotary gear; 10-3. Gear motor; 10-4. Guide center column;

[0047] 10-5. Guide clamp; 10-6. Guide ball groove; 10-7. Worm thread groove; 10-8. Worm;

[0048] 10-9. Transmission gear set; 10-10. Worm motor; 10-11. Steering controller outer sleeve;

[0049] 10-12, Guide clamp groove; 10-13, Rotary gear central shaft hole; 10-14, Rotary gear groove;

[0050] 10-15. Conductive slip ring structure; 10-16. Cable take-up port; 10-17. Single-axis roller;

[0051] 10-18. Conductive slip ring ball; 10-19. Brush bristles; 10-20. Conductive rail; 10-21. Wiring port;

[0052] 10-22. Cable take-up groove; 10-23. Upper platform; 10-24. Lower platform; 10-25. Guide ball bearings;

[0053] 10-26. Control triaxial magnetic sensor; 11. Universal joint No. 2; 12. Universal joint No. 3;

[0054] 13. Drill pipe pusher; 14. Transmission sleeve; 15. Hexagonal drill pipe; 15-1. Transmission bolt;

[0055] 15-2, Transmission bolt hole; 15-3, Transmission bolt cable hole; 15-4, Limiting ball groove;

[0056] 16. Excavated bolt; 16-1. Flange; 16-2. Rib plate; 16-4. Bolt hole;

[0057] 16-5, Hexagonal drill pipe driven channel; 16-6, Cable drill pipe isolation sleeve; 16-7, Ordinary circular channel;

[0058] 17. Cross shaft; 18. Universal joint fork shaft; 18-1. Outer arm; 18-2. Universal joint fork shaft cable hole;

[0059] 19. Universal joint swivel bearing; 20. Rubber hose; 21. Cable; 22. Cable centering reel;

[0060] 22-1. Cable protection pipe; 25. Pipeline drilling rig; 34. Aviation socket; 36. Socket mounting plate. Detailed Implementation

[0061] like Figures 1 to 19 As shown, this utility model includes a reaming sleeve 2 installed at the front end of the pipe curtain steel pipe 1, a drill bit 7 installed at the front end of the reaming sleeve 2, a drill bit guiding and correcting mechanism and a propulsion mechanism installed inside the reaming sleeve 2, and a soil discharge screw 16 located inside the pipe curtain steel pipe 1; the drill bit guiding and correcting mechanism includes a telescopic sleeve 5, and a universal ball mechanism 6, a first telescopic connecting rod section 4, a first universal joint 8, a control steering device 10, a second universal joint 11, a second telescopic connecting rod section 9 and a third universal joint 12 connected in sequence inside the telescopic sleeve 5, and the front end of the universal ball mechanism 6 is connected to the drill bit 7.

[0062] In this embodiment, the telescopic sleeve 5 has two telescopic sleeve scraping threads 5-1 on its outside, and the telescopic sleeve 5 has a hexagonal telescopic sleeve hexagonal slider 5-2 at its outer rear end. The inner wall of the telescopic sleeve hexagonal slider 5-2 is connected to the outer side of the central bearing 5-3 as a whole, and the central bearing 5-3 is provided with central bearing balls 5-4.

[0063] In this embodiment, the steering control unit 10 includes an annular gear track 10-1, a rotary gear 10-2, a gear motor 10-3, a guide center column 10-4, a guide clamp 10-5, a worm gear 10-8, a transmission gear set 10-9, a worm motor 10-10, an outer sleeve 10-11 for the steering controller, a conductive slip ring structure 10-15, and a control triaxial magnetic sensor 10-26. The outer diameter of the annular gear track 10-1 is the same as the inner diameter of the telescopic sleeve 5 and they are connected by welding. The inner side of the annular gear track 10-1 is a toothed guide rail. There are two annular gear tracks 10-1, which are arranged coaxially and parallel. The outer diameter of the outer sleeve 10-11 for the steering controller is smaller than that of the annular gear track. The steering controller outer sleeve 10-11 has an inner diameter of 10-1. Eight rotating gear slots 10-14 are distributed on the outer side, with four slots forming a group. The two groups of slots are equidistant from the front and rear ends of the steering controller outer sleeve 10-11. A rotating gear shaft hole 10-13 is formed on the side of each rotating gear slot 10-14. A rotating gear 10-2 passes through the rotating gear shaft hole 10-13 and connects to the rotating gear slot 10-14 via a bearing structure. The shaft of the rotating gear 10-2 passes through the rotating gear shaft hole 10-13 and connects to the gear motor 10-3. The gear motor 10-3 is fixed to the steering controller outer sleeve 10-11. The inner wall; the steering controller outer sleeve 10-11 is equipped with an upper platform 10-23 and a lower platform 10-24. The upper platform 10-23 and lower platform 10-24 have guide clamp grooves 10-12 and cable take-up grooves 10-22. The upper platform 10-23 and lower platform 10-24 have a straight groove-shaped channel in the middle. The guide clamp groove 10-12 passes through the upper platform 10-23 and lower platform 10-24, but does not pass through the arc surfaces on both sides of the straight groove-shaped channel. Two symmetrical worm gears 10-8 are provided on the upper part of the upper platform 10-23 and the lower part of the lower platform 10-24. One side of each worm gear 10-8 is connected to one gear of the transmission gear set 10-9. The shaft is connected, and another gear of the transmission gear set 10-9 is coaxially connected to a worm motor 10-10; the guide clamp 10-5 has rectangular protrusions on both the top and bottom, and the plane of the rectangular protrusion has a worm thread groove 10-7, which meshes with the worm 10-8; the inner ring surface of the guide clamp 10-5 has a guide ball groove 10-6; the guide center column 10-4 has a guide ball hole near its end; the guide clamp 10-5 and the guide center column 10-4 form a bearing structure through the guide ball groove 10-6, the guide ball 10-25 and the guide ball hole, so that the guide center column 10-4 can rotate independently relative to the guide clamp 10-5.A conductive slip ring structure 10-15 is provided in the middle of the guide center column 10-4. The conductive slip ring structure 10-15 includes a take-up drum 10-16, a single-axis roller 10-17, a conductive slip ring ball 10-18, brush bristles 10-19, a conductive rail 10-20, and a connection port 10-21. A take-up drum 10-16 is provided above and below the conductive slip ring structure 10-15. The two take-up drums 10-16 pass through the take-up port grooves 10-22 of the upper platform 10-23 and the lower platform 10-24, respectively. The single-axis roller 10-17 is located on both sides of the take-up drum 10-16 and its axis is... Located on the side of the take-up drum 10-16, the single-axis roller 10-17 contacts the upper platform 10-23 and the lower platform 10-24; the connection port 10-21 is located inside the take-up drum 10-16, and the cable 21 passes through the take-up drum 10-16 and connects to each connection port 10-21; the brush bristles 10-19 are connected to the connection ports 10-21; the conductive rail 10-20 contacts the brush bristles 10-19; the conductive rail 10-20 and the central guide post are a rigid whole; the control triaxial magnetic sensor 10-26 is installed on the upper part of the upper platform 10-23 or the lower part of the lower platform 10-24.

[0064] In this embodiment, the front end of the drill bit 7 has a Y-shaped structure, which protrudes forward. A semi-circular scraper 7-4 for easy soil scraping is provided at the front end of the Y-shaped structure. The rear end of the drill bit 7 is connected to the reaming sleeve 2. A triaxial magnetic sensor 7-2 is located at the center of the drill bit 7. A drill bolt 7-1 is located at the rear end of the drill bit 7. A single-pin connector 7-3 is connected to the rear end of the drill bolt 7-1. A circular channel exists along the axis of the drill bit 7 and the drill bolt 7-1, through which the cable 21 for the triaxial magnetic sensor 7-2 passes and connects to the single-pin connector 7-3. (Universal) The ball mechanism 6 includes a universal ball retaining ring 6-2, universal ball bearings 6-3, universal ball 6-1, and a single pin insertion hole 6-6. The outer diameter of the universal ball retaining ring 6-2 is the same as the inner diameter of the telescopic sleeve 5, and it is fixedly connected to the front end of the telescopic sleeve 5. The inner side of the universal ball retaining ring 6-2 is a spherical arc surface, and its arc surface is evenly arranged with multiple universal ball bearing holes 6-5 for installing the universal ball bearings 6-3. The front end of the universal ball 6-1 is a drill bit threaded hole 6-4, and the drill bit bolt 7-1 is connected to the drill bit threaded hole 6-4. The bottom of the drill bit threaded hole 6-4 is a single pin insertion hole 6-6.

[0065] In this embodiment, the first telescopic link section 4 includes a first telescopic link 4-1 and a first telescopic link sleeve 4-2. The first telescopic link sleeve 4-2 is coaxially connected to the universal ball 6-1 as a whole. The inner side of the first telescopic link sleeve 4-2 has a toothed cross section, and the axis of the first telescopic link sleeve 4-2 has a first cable protection tube 4-4. The outer side of the first telescopic link 4-1 has a gear cross section that meshes with the toothed cross section. The axis of the first telescopic link 4-1 has a first telescopic link cable hole 4-3. The outer diameter of the first cable protection tube 4-4 is smaller than that of the first telescopic link cable hole 4-3 so as to protect the cable 21 during the extension and retraction of the first telescopic link section 4. The bottom of the single pin hole 6-6 is connected to the cable 21 and passes through the first cable protection tube 4-4 for power supply and data transmission to the drill bit triaxial magnetic sensor 7-2.

[0066] Universal joint 8 includes two universal joint fork shafts 18, universal joint swivel bearings 19, a cross shaft 17, and a rubber hose 20. Universal joint fork shafts 18 have a cable hole 18-2 at their center, which communicates with the cable hole 4-3 of the first telescopic link. Each universal joint fork shaft 18 has two symmetrical outer arms 18-1 on one side, each with a universal joint swivel bearing hole at its end. The universal joint swivel bearing holes have a larger diameter at the middle and smaller diameters at both ends, used to hold the universal joint swivel bearings 19 in place. The cross shaft 17 connects to the two universal joint fork shafts 18 via four universal joint swivel bearings 19, allowing the universal joint fork shafts to rotate through the universal joint swivel bearings 19. A circular channel is located in the middle of the cross shaft 17, through which the rubber hose 20 passes and connects to the cable holes 18-2 on both sides of the universal joint fork shaft, used to protect the cable 21. The rear end of the first telescopic link 4-1 is welded to the first universal joint fork shaft 18.

[0067] Universal joint No. 2 (11) and universal joint No. 3 (12) have the same structure as universal joint No. 1 (8), and telescopic link No. 2 (9) has the same structure as telescopic link No. 1 (4).

[0068] In this embodiment, the enlarged sleeve 2 is provided with an enlarged sleeve central support 3, which is a telescopic hydraulic cylinder.

[0069] In this embodiment, the propulsion mechanism includes a transmission sleeve 14, a drill rod propeller 13, and a hexagonal drill rod 15. The cable 21 extends to the rear of the transmission sleeve 14 and connects to the aviation plug.

[0070] In this embodiment, the drill pipe pusher 13 includes three drill pipe pushing cylinders.

[0071] In this embodiment, the front end of the hexagonal drill rod 15 is a transmission bolt 15-1, which is connected to the No. 3 universal joint 12 through the transmission bolt hole 15-2. The transmission bolt 15-1 has a transmission bolt cable hole 15-3 through the shaft for threading the cable 21. The cross section of the hexagonal drill rod 15 is a regular hexagon. Limiting ball grooves 15-4 are arranged at equal intervals on the six edges of the hexagonal drill rod 15. Limiting balls for controlling the forward and backward movement of the hexagonal drill rod 15 are provided in the limiting ball grooves 15-4.

[0072] In this embodiment, flanges 16-1 are provided at both ends of the excavation screw 16. The flanges 16-1 and the excavation screw 16 are reinforced by ribs 16-2. The front end of the excavation screw 16 has a rigid socket for connecting to an aviation plug. Inside the excavation screw 16, from front to back, there are a hexagonal drill rod driven channel 16-5 adapted to the hexagonal drill rod 15 and a normal circular channel 16-7. The aviation socket 34 is separated from the hexagonal drill rod driven channel 16-5 by a cable drill rod isolation sleeve 16-6. Three cable holes are evenly distributed on the outer side of the hexagonal drill rod driven channel 16-5. The outer edge of the flange 16-1 is provided with six bolt holes 16- 4. The excavation screw 16 and the transmission sleeve 14 are connected and fixed by bolts and nuts; the cable centering plate 22 is fixedly installed in the ordinary circular channel 16-7, and the socket fixing plate 36 is fixed on the outside of the cable centering plate 22. The socket fixing plate 36 connects various cables to the aviation socket 34; a cable protection tube 22-1 is set between the two cable centering plates 22, and two adjacent excavation screws 16 are connected by a spiral wire with aviation plugs at both ends; the external conductive slip ring 37 is fixed on the reaction wall where the rear axis of the pipe curtain drilling rig 25 is located, and is used to connect various cables to the operating system and prevent the cable 21 from being twisted and damaged during rotation.

[0073] When using this utility model, shut down the pipe curtain drilling machine 25, set the initial value of the triaxial magnetic sensor in the operating system, set the drilling direction as the X-axis, set the horizontal plane perpendicular to the drilling direction as the Y-axis, set the height as the Z-axis, and set the reference triaxial magnetic sensor as the origin. Record the initial height difference h0 and the initial horizontal distance y0 between the drill bit triaxial magnetic sensor 7-2 and the reference triaxial magnetic sensor.

[0074] Connect the excavation screw 16 to the pipe curtain drilling rig 25 with bolts: place the pipe curtain steel pipe on the pipe curtain steel rail, and push the pipe curtain steel pipe from the smaller diameter end of the reaming sleeve 2 until the reaming sleeve 2 is exposed from the pipe curtain steel pipe.

[0075] Install drill bit 7 onto universal ball joint 6, push the pipe curtain steel pipe forward until the pipe curtain drilling machine 25 reaches its maximum stroke. Use aviation connectors to connect the corresponding aviation sockets 34 between multiple excavation screws 16. Then use aviation connectors to connect the aviation sockets 34 at the edge position to the external conductive slip ring 37. Then pass the cable 21 of the external conductive slip ring 37 through the pipe curtain drilling machine 25 and connect it to the operating system. Fix the reference triaxial magnetic sensor and connect it to the operating system 24. Confirm that the reference triaxial magnetic sensor, drill bit triaxial magnetic sensor 7-2, and control triaxial magnetic sensor 10-26 are all working normally. Confirm that drill bit 7 can deflect normally. After confirmation, connect the pipe curtain drilling machine 25 to the excavation screws with bolts. Start the pipe curtain drilling machine 25 to control the excavation screws to move forward. Observe whether the telescopic sleeve 5 and drill rod pusher 13 are working normally.

[0076] Return drill bit 7 to its original position, and the pipe-jacking drilling rig 25 begins operation, pushing the pipe-jacking sleeve and the excavation screw forward. During the drilling process, record the total drilling depth and the current total height difference h between the drill bit triaxial magnetic sensor 7-2 and the reference triaxial magnetic sensor at regular intervals. i Current total horizontal distance y i Calculate the offset of the total jacking depth. offset from the jacking depth of the i-th segment Where i is the number of the 25th working cycle of the pipe-draft drilling rig and i≥1, h i-1 The total height difference y is the sum of the (i-1)th measurements of the drill bit triaxial magnetic sensor 7-2 and the reference triaxial magnetic sensor. i-1 The total horizontal distance measured for the (i-1)th time by the drill bit triaxial magnetic sensor 7-2 and the reference triaxial magnetic sensor;

[0077] When the offset Δ of the total jacking depth and the offset Δ of the i-th segment jacking depth i If any value exceeds the allowable range, drilling should be stopped immediately, and the upper platform 10-23 of the outer sleeve 10-11 of the steering controller should be adjusted to be horizontal via the control console.

[0078] The required drilling length d for correction is determined based on the bending strength of the pipe jacking steel pipe. i According to the formula Calculate the correction angle α;

[0079] Drill the guide hole according to the correction angle: Control the reaming sleeve 3 to open and fit tightly against the pipe curtain sleeve through the operating system. The pipe curtain drilling machine 25 pulls the soil-exiting screw backward until the reaming sleeve 2 separates from the transmission sleeve 14.

[0080] Correcting the drilling of the guide hole: When the upper platform 10-23 of the outer sleeve 10-11 of the steering controller is in a horizontal state, rotate the rotating gear 10-2 of the steering controller until the upper platform 10-23 is parallel to the correction angle, then rotate the worm motor 10-10 and adjust the position of the guide clamp 10-5 until the drill bit 7 reaches the correction angle.

[0081] Restart the pipe curtain drilling rig 25, so that the soil discharge screw 16 rotates and drives the hexagonal drill rod 15 to rotate, thereby driving the drill bit 7 to rotate; then control the drill rod pusher 13 to push the hexagonal drill rod 15 forward, and then push the telescopic sleeve 5 and the drill bit 7 forward until the drill bit 7 is corrected to within the allowable offset distance, and the drilling direction of the drill bit 7 returns to the X-axis.

[0082] During the drilling process, monitoring continues. If drill bit 7 deviates again, drilling is stopped and adjustments are made again until the pipe curtain drilling is completed.

[0083] In use, the coordinates of the lowest or highest point of the control triaxial magnetic sensor 10-26 can be obtained by rotating the control steering device 10. Then, by rotating the control triaxial magnetic sensor 10-26 to that coordinate, the upper platform 10-23 can be made horizontal.

[0084] In use, the horizontal position of the upper platform 10-23 does not mean that the upper platform 10-23 is in an upward horizontal state. Since the upper platform 10-23 and the lower platform 10-24 face opposite directions and are parallel to each other, the goal can be achieved whether the upper platform 10-23 is in an upward or downward horizontal state.

[0085] When in use, when correcting the angle of drill bit 7, the central guide column can only move in a straight line within the guide clamp groove 10-12 of the outer sleeve 10-11 of the steering controller. Therefore, by rotating gear 10-2, the direction of the guide clamp groove 10-12 of the outer sleeve 10-11 of the steering controller can be changed so that it can rotate in the vertical plane, thereby changing the linear motion of the guide center column 10-4.

[0086] When in use, as the telescopic sleeve 5 moves forward, the expanding sleeve 2 is fixed inside the pipe curtain steel pipe by the central support 3 of the expanding sleeve, and there is a hexagonal slider between the expanding sleeve 2 and the telescopic sleeve 5 for fixing. Therefore, the telescopic sleeve 5 will not rotate when moving forward.

[0087] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A deviation correction device for pipe jacking construction, characterized in that: It includes a borehole-expanding sleeve (2) installed at the front end of the pipe curtain steel pipe (1), a drill bit (7) installed at the front end of the borehole-expanding sleeve (2), a drill bit guiding and correcting mechanism and a propulsion mechanism installed in the borehole-expanding sleeve (2), and a soil-exiting screw (16) located in the pipe curtain steel pipe (1); the drill bit guiding and correcting mechanism includes a telescopic sleeve (5), and a universal ball mechanism (6), a first telescopic link (4), a first universal joint (8), a control steering device (10), a second universal joint (11), a second telescopic link (9) and a third universal joint (12) connected in sequence in the telescopic sleeve (5), and the front end of the universal ball mechanism (6) is connected to the drill bit (7).

2. A deviation correction device for pipe jacking construction according to claim 1, characterized in that: The telescopic sleeve (5) has two telescopic sleeve scraping threads (5-1) on the outside. The telescopic sleeve (5) has a hexagonal telescopic sleeve hexagonal slider (5-2) at the rear end of the outer side. The inner wall of the telescopic sleeve hexagonal slider (5-2) is connected to the outer side of the central bearing (5-3) as a whole. The central bearing (5-3) is provided with central bearing balls (5-4).

3. A deviation correction device for pipe jacking construction according to claim 1, characterized in that: The steering control unit (10) includes a ring gear (10-1), a rotary gear (10-2), a gear motor (10-3), a guide center column (10-4), a guide clamp (10-5), a worm gear (10-8), a transmission gear set (10-9), a worm motor (10-10), an outer sleeve of the steering controller (10-11), a conductive slip ring structure (10-15), and a control triaxial magnetic sensor (10-26). The outer diameter of the ring gear (10-1) is the same as the inner diameter of the telescopic sleeve (5) and they are connected by welding. The inner side of the ring gear (10-1) is a toothed guide rail. There are two ring gears (10-1) arranged coaxially and parallel to each other. The outer diameter of the outer sleeve of the steering controller (10-11) is smaller than that of the ring gear (10-10). 0-1) Inner diameter: Eight rotary gear slots (10-14) are distributed on the outer side of the steering controller outer sleeve (10-11). Four rotary gear slots (10-14) are divided into groups. The two groups of rotary gear slots are equidistant from the front and rear ends of the steering controller outer sleeve (10-11). Rotary gear central shaft holes (10-13) are opened on the side of the rotary gear slots (10-14). The rotary gear (10-2) passes through the rotary gear central shaft hole (10-13) and is connected to the rotary gear slot (10-14) through a bearing structure. The central shaft of the rotary gear (10-2) passes through the rotary gear central shaft hole (10-13) and is connected to the gear motor (10-3). The gear motor (10-3) is fixed to the inner wall of the steering controller outer sleeve (10-11). The steering controller's outer sleeve (10-11) contains an upper platform (10-23) and a lower platform (10-24). The upper platform (10-23) and lower platform (10-24) have guide clamp grooves (10-12) and cable reel grooves (10-22). A straight groove-shaped channel forms between the upper platform (10-23) and lower platform (10-24). The guide clamp groove (10-12) passes through the upper platform (10-23) and lower platform (10-24) but does not pass through the arc surfaces on either side of the straight groove-shaped channel. Two symmetrical worm gears (10-8) are located on the upper part of the upper platform (10-23) and the lower part of the lower platform (10-24). One side of each worm gear (10-8) is connected to a gear in the transmission gear set (10-9). The transmission gear set (10-9) is coaxially connected to another gear of a worm motor (10-10). The guide clamp (10-5) has rectangular protrusions on both the top and bottom. The plane of the rectangular protrusion has a worm thread groove (10-7), which meshes with the worm (10-8). The inner ring surface of the guide clamp (10-5) has a guide ball groove (10-6). The guide center column (10-4) has a guide ball hole near its end. The guide clamp (10-5) and the guide center column (10-4) form a bearing structure through the guide ball groove (10-6), the guide ball (10-25), and the guide ball hole, so that the guide center column (10-4) can rotate independently relative to the guide clamp (10-5).A conductive slip ring structure (10-15) is provided in the middle of the guide center column (10-4). The conductive slip ring structure (10-15) includes a take-up drum (10-16), a single-axis roller (10-17), a conductive slip ring ball (10-18), brush bristles (10-19), a conductive rail (10-20), and a connection port (10-21). A take-up drum (10-16) is set at the top and bottom of the conductive slip ring structure (10-15). The two take-up drums (10-16) pass through the take-up port grooves (10-22) of the upper platform (10-23) and the lower platform (10-24), respectively. The single-axis roller (10-17) is located on both sides of the take-up drum (10-16) and its axis is... Located on the side of the take-up drum (10-16), a single-axis roller (10-17) contacts the upper platform (10-23) and the lower platform (10-24); the connection port (10-21) is located inside the take-up drum (10-16), and the cable (21) passes through the take-up drum (10-16) and connects to each connection port (10-21); the brush bristles (10-19) are connected to the connection port (10-21); the conductive rail (10-20) contacts the brush bristles (10-19); the conductive rail (10-20) and the central guide post are a rigid whole; the control triaxial magnetic sensor (10-26) is installed on the upper part of the upper platform (10-23) or the lower part of the lower platform (10-24).

4. A deviation correction device for pipe jacking construction according to claim 1, characterized in that: The drill bit (7) has a Y-shaped front end with a forward-protruding Y-shaped structure. A semi-circular scraper (7-4) is provided at the front end of the Y-shaped structure for easy soil scraping. The rear end of the drill bit (7) is connected to the reaming sleeve (2). A drill bit triaxial magnetic sensor (7-2) is located at the center of the drill bit (7). A drill bit bolt (7-1) is located at the rear end of the drill bit (7). A single-pin plug (7-3) is connected to the rear end of the drill bit bolt (7). A circular channel exists between the drill bit (7) and the drill bit bolt (7-1), through which the cable (21) for the drill bit triaxial magnetic sensor (7-2) passes and connects to the single-pin plug (7-3). A universal ball mechanism (6) The device includes a universal ball retaining ring (6-2), a universal ball bearing (6-3), a universal ball (6-1), and a single pin insertion hole (6-6). The outer diameter of the universal ball retaining ring (6-2) is the same as the inner diameter of the telescopic sleeve (5), and it is fixedly connected to the front end of the telescopic sleeve (5). The inner side of the universal ball retaining ring (6-2) is a spherical arc surface, and its arc surface is evenly arranged with multiple universal ball bearing holes (6-5) for installing the universal ball bearing (6-3). The front end of the universal ball (6-1) is a drill bit threaded hole (6-4), and the drill bit bolt (7-1) is connected to the drill bit threaded hole (6-4). The bottom of the drill bit threaded hole (6-4) is a single pin insertion hole (6-6).

5. A deviation correction device for pipe jacking construction according to claim 4, characterized in that: The first telescopic link section (4) includes a first telescopic link (4-1) and a first telescopic link sleeve (4-2). The first telescopic link sleeve (4-2) is coaxially connected to the universal ball (6-1) as a whole. The inner side of the first telescopic link sleeve (4-2) is a toothed section. The first cable protection tube (4-4) is located at the center of the first telescopic link sleeve (4-2). The outer side of the first telescopic link (4-1) is a gear section that meshes with the toothed section. The first telescopic link (4-1) has a cable hole (4-3) at the center of the first telescopic link. The outer diameter of the first cable protection tube (4-4) is smaller than that of the first telescopic link cable hole (4-3) so as to protect the cable (21) during the extension and retraction of the first telescopic link section (4). The bottom of the single pin hole (6-6) is connected to the cable (21) and passes through the first cable protection tube (4-4) for power supply and data transmission to the drill bit triaxial magnetic sensor (7-2). The first universal joint (8) includes two universal joint fork shafts (18), a universal joint swivel bearing (19), a cross shaft (17), and a rubber hose (20). The universal joint fork shaft (18) has a universal joint fork shaft cable hole (18-2) at its center, which communicates with the first telescopic linkage cable hole (4-3). Each side of the universal joint fork shaft (18) has two symmetrical outer arms (18-1), each with a universal joint swivel bearing hole at its end. The universal joint swivel bearing hole has a larger diameter at the middle and smaller diameters at both ends. Used to hold the universal joint rotating bearing (19); the cross shaft (17) is connected to two universal joint fork shafts (18) respectively through four universal joint rotating bearings (19), so that the universal joint fork shaft can rotate through the universal joint rotating bearings (19). There is a circular channel in the middle of the cross shaft (17), through which the rubber hose (20) passes and is connected to the cable holes (18-2) of the universal joint fork shafts on both sides, for the purpose of protecting the cable (21); the rear end of the first telescopic connecting rod (4-1) is welded to the first universal joint fork shaft (18); Universal joint No. 2 (11) and universal joint No. 3 (12) have the same structure as universal joint No. 1 (8), and telescopic link No. 2 (9) has the same structure as telescopic link No. 1 (4).

6. A deviation correction device for pipe jacking construction according to claim 1, characterized in that: The enlarged sleeve (2) is provided with an enlarged sleeve central support (3), which is a telescopic hydraulic cylinder.

7. A deviation correction device for pipe jacking construction according to claim 1, characterized in that: The propulsion mechanism includes a transmission sleeve (14), a drill rod pusher (13), and a hexagonal drill rod (15). A cable (21) extends to the rear of the transmission sleeve (14) and connects to an aviation plug.

8. A deviation correction device for pipe jacking construction according to claim 7, characterized in that: The drill pipe pusher (13) includes three drill pipe pushing cylinders.

9. A deviation correction device for pipe jacking construction according to claim 7, characterized in that: The front end of the hexagonal drill rod (15) is a transmission bolt (15-1). The transmission bolt (15-1) is connected to the No. 3 universal joint (12) through the transmission bolt hole (15-2). The transmission bolt (15-1) has a transmission bolt cable hole (15-3) that runs through the front and back for threading the cable (21). The cross section of the hexagonal drill rod (15) is a regular hexagon. The six edges of the hexagonal drill rod (15) are equidistantly arranged with limit ball grooves (15-4). Limit ball grooves (15-4) are provided with limit balls for controlling the forward and backward movement of the hexagonal drill rod (15).

10. A deviation correction device for pipe jacking construction according to claim 7, characterized in that: The excavation screw (16) is provided with flanges (16-1) at both ends. The flanges (16-1) and the excavation screw (16) are reinforced by ribs (16-2). The front end of the excavation screw (16) has a rigid socket for connecting to an aviation plug. Inside the excavation screw (16), from front to back, there are a hexagonal drill rod driven channel (16-5) adapted to the hexagonal drill rod (15) and a normal circular channel (16-7). The aviation socket (34) and the hexagonal drill rod driven channel (16-5) are separated by a cable drill rod isolation sleeve (16-6). Three cable holes are evenly distributed on the outer side of the hexagonal drill rod driven channel (16-5). The outer edge of the flange (16-1) is provided with six bolt holes (16-4). The excavation screw (16) and the transmission sleeve (14) are connected and fixed by bolts and nuts; the cable centering plate (22) is fixedly installed in the ordinary circular channel (16-7), and the socket fixing plate (36) is fixed on the outside of the cable centering plate (22). The socket fixing plate (36) connects various cables to the aviation socket (34); a cable protection tube (22-1) is set between the two cable centering plates (22), and two adjacent excavation screws (16) are connected by a spiral wire with aviation plugs at both ends; an external conductive slip ring (37) is fixed on the reaction wall where the rear axis of the pipe curtain drilling machine (25) is located, which is used to connect various cables to the operating system and prevent the cables (21) from being twisted and damaged during rotation.

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