The invention relates to a long and thin drill pipe anti-vibration device capable of automatic unlocking and follow-up. The long and thin drill pipe anti-vibration device includes a locking mechanism,a releasing mechanism and a bearing frame, the middle of the bearing frame is provided with a through hole for placing an external drill pipe, and the free end of the bearing frame is fixedly connected with the releasing mechanism; the bearing frame is fixedly provided with the locking mechanism; during initial installation, the releasing mechanism is fixedly connected with an external structure,when the external drill pipe is drilled, a drilling rig at the top end of the external drill pipe moves toward the bearing frame, the drill rig is fixedly connected with the locking mechanism, and the bearing frame is coupled with the external drill pipe, so that fixed connection between the releasing mechanism and the external structure is released. The long and thin drill pipe anti-vibration device capable of automatic unlocking and follow-up can be used for anti-vibration protection of long and thin type drill pipes with large draw ratios, and meanwhile has the functions of automatic unlocking and follow-up when the drill pipe at work.

Long and thin drill pipe anti-vibration device capable of automatic unlocking and follow-up

The invention discloses a follow-up frame of a rotary drilling rig. The follow-up frame comprises a follow-up frame body, a rotary supporter, two connecting arms and a wear-resistant contact plate, wherein a U-shaped chute in longitudinal distribution is formed in each connecting arm; a clamp groove in longitudinal distribution is formed in each of three inner wall surfaces of the chute; the transverse cross section of each clamp groove is in a T shape; at least one end of the upper end and the lower end of each clamp groove penetrates through the end part of the chute to form an opening; a cover plate used for covering the opening of each clamp groove is arranged on the chute; a T-shaped seat corresponding to the clamp groove is arranged at the back part of the wear-resistant contact plate; and each inner wall surface and the wear-resistant contact plate are in matched connection through the clamp groove and the T-shaped seat. The inner wall surface of the chute is connected with theT-shaped seat of the wear-resistant contact plate through the T-shaped clamp groove, so that the damage cannot easily occur; the service life of the follow-up frame is prolonged; and the work stability of the rotary drilling rig is ensured.

Follow-up frame of rotary drilling rig

The invention discloses a sliding groove mechanism of a rotary drilling rig follow-up frame. The follow-up frame comprises sliding grooves, wear-resistant contact plates, a fixed column, a buffer sleeve, a buffer spring, and a roller; the sliding grooves with longitudinal distribution and U shape are arranged on each of two relatively distributed connecting arms of the follow-up frame; wear-resistant contact plates are arranged on three inner walls of the sliding grooves; the rear end of the fixed column is fixed on the follow-up frame, and the fixed column is located between the two connecting arms; an inner hole which can be arranged in the front end of the fixed column in a sleeved mode in a back and forth sliding mode is formed in the rear end of the buffer sleeve; the buffer spring is arranged inside the inner hole of the buffer sleeve, and the buffer spring is clamped between the bottom wall of the inner hole of the buffer sleeve and the front end of the fixed column; the roller is arranged on the front end of the buffer sleeve, and the roller is used for relying on a guide rail of a mast. The roller relies on the guide rail, the buffer spring is used for buffering and absorbing the vibration generated during the working process, the impact on the wear-resistant contact plate is reduced, and the service life of the follow-up frame is improved.

Sliding groove mechanism of rotary drilling rig follow-up frame

The utility model relates to a servo frame and a construction machine with the same. The servo frame comprises a slewing bearing, two slide shoes and two connecting arms, the slide shoes are connected with one ends of the connecting arms respectively, and the slewing bearing is connected with the other ends of the connecting arms. Each connecting arm is cut off to form a first arm portion and a second arm portion which are connected via a flexible connecting structure. Each flexible connecting structure comprises a connector and an elastic part, the connectors connected with the first arm portions and the second arm portions, and the elastic parts are sleeved with the connectors. The connecting arms of the servo frame are divided into the first arm portions and the second arm portions, and the first arm portions and the second arm portions are connected by the flexible connecting structures, so that the servo frame can displace slightly on the premise of always keeping a certain total size, and buffering and vibration absorbing are realized.

Sun Guangqing

Papers

Servo frame and construction machine with same