DRILLING RIG Russian patent published in 1998 - IPC

FIELD: machinery and equipment for drilling bore-holes. SUBSTANCE: this can be used in engineering geology and construction industry. Drilling rig has mast and load-bearing frame which is pivotally connected with mast. Also there are guide members for moving rotator carriage over them. Carriage is rigidly connected with rod of feeding cylinder by means of cross-member. Case of feeding cylinder is connected with lower part of mast. Mast is made in the form of hollow bar of enclosed configuration. Guide members are rigidly connected with mast bar by means of two side members. Bar is displaced relative to plane of guide members and is provided with additional guide members. Installed on these additional guide members is additional carriage which is connected with cross-member. Case of cylinder is located between side members. Aforesaid arrangement of drilling rig components allows for reducing its mass with simultaneous enhancing its stability and sturdiness. EFFECT: higher efficiency. 2 cl, 2 dwg