Patent ID: 12252942

Reference Numerals: 1. rolling shaft; 2. drill pipe; 3. mounting plate; 4. mounting bracket; 5. first hinge seat; 6. second slide rail; 7. lower guide-rod fixing plate; 8. motor seat; 9. nut mounting plate; 10. motor; 11. rotating shaft; 12. upper guide-rod fixing plate; 13. stabilizing guide rod; 14. mounting platform; 15. guide screw rod; 16. second hinge seat; 17. connecting element; 18. first slider; and 19. first slide rail.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The specific implementations of the present disclosure are described below to facilitate those skilled in the art to understand the present disclosure, but it should be clear that the present disclosure is not limited to the scope of the specific implementations. Various obvious changes made by those of ordinary skill in the art within the spirit and scope of the present disclosure as defined by the appended claims should fall within the protection scope of the present disclosure.

As shown inFIGS.1to3, in a solution, a rolling and sliding adaptive device for guiding and fixing drill pipe2includes mounting platform14. The mounting platform14is provided with a through hole for the drill pipe2to pass through, and multiple rolling and sliding support mechanisms are arranged around the through hole. The rolling and sliding support mechanisms each include a support seat. The support seat is provided with a contact element telescopic and swingable on the support seat. A telescopic drive mechanism is provided between the contact element and the support seat. The contact elements on the multiple rolling and sliding support mechanisms form a funnel-shaped structure with a large upper part and a small lower part around the through hole.

In an implementation of this solution, the contact element includes two parallel and vertically arranged mounting plates3. Multiple rolling shafts1are evenly arranged between the two mounting plates3. The multiple rolling shafts1are vertically arranged, and two ends of each of the rolling shafts1are rotationally arranged between the two mounting plates3. The two mounting plates3are arranged on the telescopic drive mechanism. The telescopic drive mechanism is movably provided on mounting bracket4provided at the upper end of the support seat.

An upper end of each of the two mounting plates3is provided with a bent part bent away from the drill pipe2, and multiple rolling shafts1are further arranged in the bent part. When the multiple contact elements form the funnel-shaped structure around the through hole, the bent parts form an outwardly protruding edge at the upper end of the funnel-shaped structure to facilitate the insertion of the drill pipe2and other parts to avoid damage to the drill pipe2.

This solution is used on a deep in-situ high-fidelity coring calibration platform for accurate positioning of an assembly process of a multi-section drill pipe bin. It ensures the assembly accuracy of the multi-section drill pipe2and long and large parts in the upper part of the drill pipe bin and provides stable support and fixation for the assembly and work of a coring system using the drill pipe2. In addition, during the assembly of the drill pipe2, this solution guides the drill pipe2to ensure that the drill pipe2is accurately oriented with the drill pipe bin below the mounting platform14. Before assembly, the angles and spacing of the multiple contact elements are adjusted to form the funnel-shaped structure. The drill pipe2is inserted into the center of the funnel-shaped structure formed by the multiple contact elements. As the drill pipe2is inserted, the rolling shafts1on the contact elements roll to avoid damaging the drill pipe2, and they fit perfectly with the surface of the drill pipe2to ensure an even support and fixation force.

In the implementation of this solution, an annular groove mated with the outer circumference of the drill pipe2is provided in the center of each of the rolling shafts1. The annular groove has a concave arc-shaped surface and is in smooth fit with the surface of the rolling shaft1. This design facilitates the contact between the rolling shaft1and the drill pipe2and prevents the annular groove from damaging the surface of the drill pipe2.

In the implementation of this solution, the telescopic drive mechanism includes an upper drive mechanism and a lower drive mechanism. The upper drive mechanism includes upper guide-rod fixing plate12. The upper guide-rod fixing plate12is hinged to the upper ends of the two mounting plates3. The upper guide-rod fixing plate12is provided with a movement drive mechanism for driving the upper guide-rod fixing plate12to move toward the drill pipe2. The lower drive mechanism includes lower guide-rod fixing plate7. The lower guide-rod fixing plate7is hinged to the lower ends of the two mounting plates3. The lower guide-rod fixing plate7is provided with a movement drive mechanism for driving the lower guide-rod fixing plate7to move toward the drill pipe2. The movement drive mechanisms are provided on the mounting bracket4.

The upper ends of the two mounting plates3are connected by a locking bolt, and the lower ends of the two mounting plates3are connected by a rotating shaft11. Two ends of the rotating shaft11are provided on the mounting plate3through bearings. The rotating shaft11is provided with a first hinge element hinged to a first hinge seat5on the lower guide-rod fixing plate7. The upper ends of the two mounting plates3are respectively provided with a vertical first slide rail19. The two first slide rails19are respectively provided with a first slider18. The two first sliders18are connected through connecting element17. The connecting element17is provided with a second hinge element hinged to a second hinge seat16on the upper guide-rod fixing plate12.

When the angle of the contact element is adjusted, the upper and lower ends of the contact element can be adjusted synchronously with a high degree of freedom, a stable support force, and a stable structure. The first slide rails19are respectively provided in U-shaped grooves of the two mounting plates3to facilitate stable vertical positioning and mounting of the first slide rails19.

The movement drive mechanisms include a guide screw rod15. The guide screw rod15has one end provided on the upper guide-rod fixing plate12and the lower guide-rod fixing plate7through a bearing. The guide screw rod15has the other end provided with motor seat8through a bearing and connected in a transmission manner to motor10on the motor seat8. The guide screw rod15is provided with a screw rod nut provided on nut mounting plate9that is positioned on the mounting bracket4, and the guide screw rod15passes through the nut mounting plate9. The motor10rotates to drive the guide screw rod15to drive the upper and lower ends of the contact element to swing at different angles. The guide screw rod15is stably mated with the screw rod nut.

Multiple stabilizing guide rods13are arranged between the upper guide-rod fixing plate12and the motor seat8, as well as between the lower guide-rod fixing plate7and the motor seat8. The multiple stabilizing guide rods13are evenly distributed around the guide screw rod15. The stabilizing guide rods13pass through the nut mounting plate9and are slidably connected to the nut mounting plate9. The stabilizing guide rods13further increase the movement stability of the guide screw rod15and reduce the error caused by vibration. A lower end of the nut mounting plate9is provided with a second slider. The second slider is slidably provided on second slide rail6on the mounting platform14. This design further ensures the movement stability of the upper guide-rod fixing plate12and the lower guide-rod fixing plate7.