Large-diameter full-rotation casing sinking positioning structure

Abstract

The utility model relates to a big diameter full slewing casing sinking positioning structure belongs to full slewing casing technical field, including mounting seat, the top fixed mounting of mounting seat has the protection cylinder, the inside sliding connection of protection cylinder has the lifting frame, the top fixed mounting of lifting frame has drive motor b, the fixed connection of drive motor b output shaft department has the gear wheel. The utility model has the beneficial effect that when butt joint upper casing and lower casing, can utilize the clamping assembly to clamp, fixed upper casing, subsequently, through the rotation of gear wheel, to drive gear ring to rotate, and then can drive fixed ring and clamping assembly to rotate, thereby can adjust the butt joint position of upper casing according to the butt joint situation of construction site, and protection cylinder will work staff and upper casing between the separation, can reduce the safety accident caused by the accidental inclination of upper casing, at the same time, the above -mentioned mode reduces the labor intensity of artificial, makes butt joint mode more convenient.

Description

Technical Field

[0001] This utility model relates to the field of full-rotation protective casing technology, and in particular to a large-diameter full-rotation protective casing sinking and positioning structure. Background Technology

[0002] The full-rotation casing is a key piece of equipment used in full-rotation drilling rigs to prevent geological disasters such as piping. Its core function is to ensure the stability of the borehole through a special structural design. It is mainly used in complex geological conditions such as quicksand, karst landforms, interlocking pile construction, and pile extraction and obstacle removal to ensure the quality of borehole formation and construction safety.

[0003] A search revealed a Chinese patent (authorization announcement number CN210438260U) disclosing a large-diameter steel casing hoisting structure, comprising a support frame. The support frame includes a main hoist and four auxiliary hoisting rods. The length of the main hoist is equal to the diameter of the steel casing being hoisted, and the length of the auxiliary hoisting rods is equal to the radius of the steel casing. The four auxiliary hoisting rods are symmetrically welded to both sides of the main hoist with the center of the main hoist as the symmetrical point. A lifting lug is welded to the middle of the top surface of the main hoist. A ring-shaped support steel plate is circumferentially welded to the upper inner wall of the steel casing. The support frame is located below the support steel plate inside the steel casing. The ends of the main hoist and each auxiliary hoisting rod are supported on the inner wall of the steel casing. This patented technology ensures that the support frame remains supported on the inner wall of the steel casing during transportation and hoisting, effectively preventing deformation of the steel casing.

[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that during the docking process between the upper and lower protective casings, the staff needs to observe the docking status at close range. In order to ensure successful docking, the staff usually needs to manually assist the upper protective casing to rotate to the corresponding angle. However, this method results in a large amount of manual labor and has certain dangers. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main purpose of this utility model is to provide a large-diameter fully rotating protective cylinder sinking and positioning structure.

[0006] The technical solution of this utility model is as follows: a large-diameter fully rotating protective cylinder sinking and positioning structure, including a mounting base, a protective cylinder fixedly mounted on the top of the mounting base, a lifting frame slidably connected inside the protective cylinder, a drive motor b fixedly mounted on the top of the lifting frame, a gear fixedly connected to the output shaft of the drive motor b, a fixing ring rotatably mounted on the inner wall of the lifting frame, a gear ring fixedly connected to the outer side of the fixing ring, the gear ring meshing with the gear, an upper protective cylinder provided inside the protective cylinder, a lower protective cylinder provided inside the mounting base and below the upper protective cylinder, a clamping assembly provided below the lifting frame, and an adjusting assembly provided inside the protective cylinder.

[0007] By adopting the above technical solution, the rotation of the gear drives the gear ring to rotate, which in turn drives the fixed ring and clamping assembly to rotate, thereby allowing the docking position of the upper casing to be adjusted according to the docking situation at the construction site.

[0008] In a preferred embodiment, the adjustment assembly includes two mounting brackets fixedly connected to both sides of the inner wall of the protective cylinder, wherein a screw is rotatably connected between the two mounting brackets, and a limit rod is fixedly connected between the other two mounting brackets. The lifting frame is slidably connected to the limit rod, and the lifting frame is threadedly connected to the screw.

[0009] By adopting the above technical solution, the lifting and lowering of the lifting frame can be limited by the action of the limiting rod, making the lifting frame more stable during the adjustment process.

[0010] In a preferred embodiment, the clamping assembly includes several support frames fixedly connected to the bottom of the fixing ring. Rotating components are rotatably connected inside the support frames, and each rotating component has a clamping component rotatably installed inside it. Each clamping component abuts against the outer side of the upper protective sleeve.

[0011] By adopting the above technical solution and using cylinders, a power source can be provided for the rotation of rotating parts.

[0012] In a preferred embodiment, the clamping assembly further includes a cylinder rotatably mounted on the inner wall of the support frame, wherein the piston rod of the cylinder is rotatably connected to a corresponding rotating component.

[0013] By adopting the above technical solution, the piston rod of the cylinder can be extended and retracted to drive the rotating part to rotate, thereby achieving the purpose of clamping the upper protective cylinder with the help of four clamping parts.

[0014] In a preferred embodiment, the top end of the lower casing is provided with a positioning component, the positioning component including a docking ring integrally formed on the top end of the lower casing, and the bottom end of the upper casing is provided with a docking groove that cooperates with the docking ring.

[0015] By adopting the above technical solutions, and through the use of the lower casing and the connecting ring, geological disasters such as piping can be prevented.

[0016] In a preferred embodiment, the positioning assembly further includes a docking member fixedly connected to the outside of the docking ring, and the upper protective sleeve has a docking hole inside that mates with the docking member.

[0017] By adopting the above technical solution and using the docking holes and docking parts together, it is easier to connect the upper and lower protective casings.

[0018] In a preferred embodiment, both the upper protective sleeve and the docking ring have mounting holes inside, and a locking bolt is provided between the two mounting holes.

[0019] By adopting the above technical solution, the upper and lower protective casings can be fixed.

[0020] In one preferred embodiment, a drive motor a is fixedly mounted on the outer side of one of the mounting brackets, the output shaft of the drive motor a is fixedly connected to a screw, a lifting lug is welded to the top of the upper casing, and a cutting head is welded to the bottom of the lower casing.

[0021] By adopting the above technical solution, it is convenient for the lower casing to break up the ground.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the rotation of the gear drives the gear ring to rotate, which in turn drives the fixing ring and clamping assembly to rotate. This allows the docking position of the upper casing to be adjusted according to the docking situation at the construction site. The protective casing isolates the workers from the upper casing, reducing safety accidents caused by accidental tilting of the upper casing. At the same time, the above method reduces the amount of manual labor and makes the docking method more convenient.

[0023] 2. In this utility model, the rotation of the screw can drive the lifting frame to move, thereby adjusting the docking height of the upper protective cylinder, making the docking of the upper protective cylinder more precise. The extension and retraction of the piston rod of the cylinder can drive the rotating part to rotate, thereby achieving the purpose of clamping and resisting the upper protective cylinder with the help of four clamping parts. Attached Figure Description

[0024] Figure 1 This utility model provides an overall perspective view of a large-diameter fully rotating protective cylinder sinking and positioning structure; Figure 2 A half-sectional view of a large-diameter fully rotating protective cylinder sinking and positioning structure provided by this utility model; Figure 3 A schematic diagram of the clamping assembly for a large-diameter fully rotating protective cylinder sinking and positioning structure provided by this utility model; Figure 4 This utility model provides a large-diameter fully rotating protective casing sinking and positioning structure. Figure 3 Enlarged view of point A in the middle.

[0025] Legend: 1. Mounting base; 2. Protective cylinder; 3. Upper protective cylinder; 4. Mounting frame; 5. Lifting frame; 6. Screw; 7. Drive motor a; 8. Drive motor b; 9. Gear ring; 10. Gear; 11. Fixing ring; 12. Support frame; 13. Cylinder; 14. Rotating component; 15. Clamping component; 16. Lower protective cylinder; 17. Connecting ring; 18. Mounting hole; 19. Limiting rod. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] Reference Figure 1-4 A large-diameter, fully rotating protective cylinder sinking and positioning structure includes a mounting base 1, a protective cylinder 2 fixedly mounted on the top of the mounting base 1, a lifting frame 5 slidably connected inside the protective cylinder 2, a drive motor b8 fixedly mounted on the top of the lifting frame 5, a gear 10 fixedly connected to the output shaft of the drive motor b8, a fixing ring 11 rotatably mounted on the inner wall of the lifting frame 5, a gear ring 9 fixedly connected to the outer side of the fixing ring 11, the gear ring 9 meshing with the gear 10, an upper protective cylinder 3 is provided inside the protective cylinder 2, a lower protective cylinder 16 is provided inside the mounting base 1 and below the upper protective cylinder 3, and a clamp is provided below the lifting frame 5. The protective cylinder 2 has an internal adjustment component. When the upper protective cylinder 3 and the lower protective cylinder 16 are connected, the upper protective cylinder 3 can be clamped and fixed using the clamping component. Then, the rotation of the gear 10 drives the gear ring 9 to rotate, which in turn drives the fixing ring 11 and the clamping component to rotate. This allows the connection position of the upper protective cylinder 3 to be adjusted according to the connection situation at the construction site. The protective cylinder 2 also isolates the workers from the upper protective cylinder 3, reducing the safety accidents caused by the accidental tilting of the upper protective cylinder 3. At the same time, the above method reduces the amount of manual labor and makes the connection method more convenient.

[0028] Specifically, the adjustment assembly includes two mounting brackets 4 fixedly connected to both sides of the inner wall of the protective cylinder 2. A screw 6 is rotatably connected between the two mounting brackets 4. Through the action of a limiting rod 19, the lifting frame 5's movement is limited, making it more stable during adjustment. The limiting rod 19 is also fixedly connected between the two mounting brackets 4. Rotation of the screw 6 moves the lifting frame 5, thereby adjusting the docking height of the upper protective cylinder 3, making docking more precise. The lifting frame 5 is slidably connected to the limiting rod 19, and the lifting frame 5 is slidably connected to the screw 6. The threaded connection and clamping assembly includes several support frames 12 fixedly connected to the bottom of the fixed ring 11. Rotating components 14 are rotatably connected inside the support frames 12. Each rotating component 14 has a clamping component 15 rotatably installed inside it. By extending and retracting the piston rod of the cylinder 13, the rotating component 14 can be pushed to rotate, thereby achieving the purpose of clamping and abutting the upper protective cylinder 3 with the help of the four clamping components 15. The clamping components 15 all abut against the outer side of the upper protective cylinder 3. The clamping assembly also includes a cylinder 13 rotatably installed on the inner wall of the support frame 12. The piston rod of the cylinder 13 is rotatably connected to the corresponding rotating component 14.

[0029] Specifically, the top of the lower casing 16 is provided with a positioning component, which includes a docking ring 17 integrally formed on the top of the lower casing 16. The use of the lower casing 16 and the docking ring 17 can prevent geological disasters such as piping. The bottom of the upper casing 3 is provided with a docking groove that works with the docking ring 17. The positioning component also includes a docking piece fixedly connected to the outside of the docking ring 17. The interior of the upper casing 3 is provided with a docking hole that works with the docking piece. The use of the docking hole and the docking piece makes it easier to dock the upper casing 3 and the lower casing 16. The interior of both the upper casing 3 and the docking ring 17 is provided with mounting holes 18. A locking bolt is provided between the two mounting holes 18. A drive motor a7 is fixedly installed on the outside of one of the mounting brackets 4. The output shaft of the drive motor a7 is fixedly connected to the screw 6. The top of the upper casing 3 is welded with a lifting lug to facilitate the hoisting of the lifting frame 5 using a rotary drilling rig. The bottom of the lower casing 16 is welded with a cutting head to facilitate the lower casing 16 to break up the ground.

[0030] Working principle: First, the mounting base 1 and the protective casing 2 are installed in the designated construction area, and the lower casing 16 is driven into the ground using a rotary drilling rig. Then, when using a large crane to hoist the upper casing 3, the upper casing 3 is first hoisted into the protective casing 2. Subsequently, the cylinder 13 is started by controlling the external control equipment. The extension and retraction of the piston rod of the cylinder 13 can drive the rotating part 14 to rotate, thereby achieving the purpose of clamping and abutting the upper casing 3 with the help of the four clamping parts 15. Then, the drive motor a7 is started, and the rotation of the screw 6 can drive the lifting frame 5 to move, thereby adjusting the docking height of the upper casing 3, so that the upper casing 3 can be... The crane slowly approaches the lower casing 16, without retracting it. Then, the drive motor b8 is started. The rotation of the output shaft of the drive motor b8 drives the gear 10 to rotate, which in turn drives the gear ring 9 to rotate, thereby driving the fixed ring 11 and the clamping assembly to rotate. This allows the docking position of the upper casing 3 to be adjusted according to the docking situation at the construction site. The protective casing 2 isolates the workers from the upper casing 3, reducing the safety accidents caused by the accidental tilting of the upper casing 3. The docking holes on the upper casing 3 are then engaged with the docking parts on the lower casing 16. Finally, the workers can install the locking bolts through the grooves on the protective casing 2.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A large-diameter fully rotating protective casing sinking and positioning structure, comprising a mounting base (1), characterized in that: A protective cylinder (2) is fixedly installed on the top of the mounting base (1). A lifting frame (5) is slidably connected inside the protective cylinder (2). A drive motor b (8) is fixedly installed on the top of the lifting frame (5). A gear (10) is fixedly connected to the output shaft of the drive motor b (8). A fixing ring (11) is rotatably installed on the inner wall of the lifting frame (5). A gear ring (9) is fixedly connected to the outer side of the fixing ring (11). The gear ring (9) meshes with the gear (10). An upper protective cylinder (3) is provided inside the protective cylinder (2). A lower protective cylinder (16) is provided inside the mounting base (1) and below the upper protective cylinder (3). A clamping assembly is provided below the lifting frame (5). An adjusting assembly is provided inside the protective cylinder (2).

2. The large-diameter full-rotation protective casing sinking and positioning structure according to claim 1, characterized in that: The adjustment assembly includes two mounting brackets (4) fixedly connected to both sides of the inner wall of the protective cylinder (2), wherein a screw (6) is rotatably connected between the two mounting brackets (4), and a limit rod (19) is fixedly connected between the other two mounting brackets (4). The lifting frame (5) is slidably connected to the limit rod (19), and the lifting frame (5) is threadedly connected to the screw (6).

3. The large-diameter full-rotation protective casing sinking and positioning structure according to claim 1, characterized in that: The clamping assembly includes several support frames (12) fixedly connected to the bottom of the fixed ring (11). The support frames (12) are rotatably connected to rotating parts (14). Each rotating part (14) is rotatably installed with a clamping part (15). Each clamping part (15) abuts against the outer side of the upper protective sleeve (3).

4. The large-diameter full-rotation protective casing sinking and positioning structure according to claim 3, characterized in that: The clamping assembly also includes a cylinder (13) rotatably mounted on the inner wall of the support frame (12), and the piston rod of the cylinder (13) is rotatably connected to the corresponding rotating part (14).

5. The large-diameter full-rotation protective casing sinking and positioning structure according to claim 1, characterized in that: The lower casing (16) is provided with a positioning component at its top end. The positioning component includes a docking ring (17) integrally formed on the top end of the lower casing (16). The bottom end of the upper casing (3) is provided with a docking groove that works in conjunction with the docking ring (17).

6. The large-diameter full-rotation protective casing sinking and positioning structure according to claim 5, characterized in that: The positioning assembly also includes a docking member fixedly connected to the outside of the docking ring (17), and the upper protective sleeve (3) has a docking hole inside that is used in conjunction with the docking member.

7. The large-diameter full-rotation protective casing sinking and positioning structure according to claim 5, characterized in that: The upper casing (3) and the docking ring (17) are both provided with mounting holes (18), and a locking bolt is provided between the two mounting holes (18).

8. The large-diameter full-rotation protective casing sinking and positioning structure according to claim 2, characterized in that: One of the mounting brackets (4) is fixedly mounted on the outside of a drive motor a (7), the output shaft of the drive motor a (7) is fixedly connected to a screw (6), a lifting lug is welded to the top of the upper sleeve (3), and a cutting head is welded to the bottom of the lower sleeve (16).

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