CN201778664U

CN201778664U - Angle adjustment device for derrick of slant-hole drilling rig

Info

Publication number: CN201778664U
Application number: CN2010202915271U
Authority: CN
Inventors: 刘维国; 王世军; 弓英明; 黄许澎
Original assignee: Baoji Oilfield Machinery Co Ltd
Current assignee: Baoji Oilfield Machinery Co Ltd
Priority date: 2010-08-13
Filing date: 2010-08-13
Publication date: 2011-03-30
Anticipated expiration: 2020-08-13

Abstract

The utility model discloses an angle adjustment device for a derrick of a slant-hole drilling rig. The lower end of the derrick is articulated with a working table through a rotating shaft; the lower ends of a lifting oil cylinder and a front supporting leg are respectively hinged on a base; the upper end of the lifting oil cylinder is articulated with the lower section of the derrick; a lug is fixed on one side of a cross beam at the lower section of the derrick, and a connecting plate is correspondingly installed on the other side of the cross beam at the lower end of the derrick; the connecting plate is connected with the lug through two horizontally arranged short beams; a rotary seat is sleeved on the front supporting leg and respectively articulated with the connecting plate and the lug through rotating shafts on both sides of the rotary seat. The angle adjustment device has simple structure and can be matched with a circular arc-shaped table and a platform on the derrick body, the pin shaft can be conveniently inserted in, the angle position of the derrick is locked, the operating security is enhanced, and the operation is convenient.

Description

Slant rig derrick angular adjustment apparatus

Technical field

The utility model belongs to the petroleum machinery equipment technical field, relates to a kind of slant rig derrick angular adjustment apparatus.

Background technology

In the adjustment structure of existing slant rig derrick angle, the length of front leg strut adopts the fit telescopic steel pipe to regulate.How long this kind adjustment structure pipe intersection has 4 meters, how long also should be 4 meters so its short tube is the shortest, and how long locates at 4 meters, neither convenient by bearing pin manually is installed, also dangerous, is prone to accidents.

Summary of the invention

The purpose of this utility model provides a kind of slant rig derrick angular adjustment apparatus, solved the bearing pin installation site that exists in the prior art be provided with unreasonable, both inconvenient, also unsafe problem.

The technical scheme that the utility model adopted is, a kind of slant rig derrick angular adjustment apparatus, the lower end of derrick is hinged by axis of rotation and workbench, the lower end of lift oil tank and front leg strut is hinged on the pedestal, the upper end of lift oil tank and the hypomere of derrick are hinged, hypomere crossbeam one side at derrick is fixed with otic placode, the opposite side correspondence is equipped with junction plate, connect by the horizontally disposed short beam of twice between junction plate and the otic placode, be set with swivel base on front leg strut, swivel base is hinged with junction plate and otic placode respectively by the rotating shaft on both sides.

Slant rig derrick angular adjustment apparatus of the present utility model, its feature also is: the rotating shaft of described junction plate is positioned at junction plate and place, the same axle center of otic placode, and rotating shaft is fixed on the swivel base both sides.

Described swivel base is provided with locating hole, vertically is provided with some locking holes on the front leg strut, and the locating hole of swivel base and the locking hole of front leg strut are pegged graft by alignment pin.

The beneficial effects of the utility model are, and are simple in structure, cooperate circular arc platform on the derrick body, walk on stage, and can insert bearing pin easily, and processing safety has been improved in locking derrick angle position, and is easy to operate, has promotional value in the slant rig field.

Description of drawings

Fig. 1 is the inclined shaft well-digging view of the utility model device;

Fig. 2 is the partial schematic diagram that the front leg strut at the I place among Fig. 1 passes swivel base;

Fig. 3 is the partial schematic diagram of the left side line of vision among Fig. 2.

Among the figure, 1. derrick, 2. lift oil tank, 3. front leg strut, 4. junction plate, 5. swivel base, 6. alignment pin, 7. otic placode, 8. short beam, 9. screw, 10. axis of rotation, 11. rotating shafts.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

With reference to Fig. 1-Fig. 4, the structure of slant rig derrick angular adjustment apparatus of the present utility model is, the lower end of derrick 1 is hinged by axis of rotation 10 and workbench, lift oil tank 2 is hinged on the pedestal with the lower end of front leg strut 3, the hypomere of the upper end of lift oil tank 2 and derrick 1 is hinged, hypomere crossbeam one face down bonding at derrick 1 has otic placode 7, the opposite side correspondence is equipped with junction plate 4, connect by the horizontally disposed short beam 8 of twice between junction plate 4 and the otic placode 7, wherein one short beam 8 fixedlyed connected (as Fig. 3) by screw 9 with junction plate 4, on front leg strut 3, be set with swivel base 5, swivel base 5 is hinged with junction plate 4 and otic placode 7 respectively by the rotating shaft 11 on both sides, rotating shaft 11 still is being in again outside the twice short beam 8 axle center connecting lines (as Fig. 2) between the twice short beam 8, swivel base 5 is provided with locating hole, vertically be provided with some locking holes on the front leg strut 3, the locking hole of the locating hole of swivel base 5 and front leg strut 3 is pegged graft by alignment pin 6.

Otic placode 7 is welded on the derrick 1 hypomere crossbeam, which is provided with the axis hole that connects swivel base 5.Junction plate 4 is provided with the shaft hole of connection swivel base 5 and the connecting hole of two short beams 8.Have the pipe box that entangles square derrick 1 and the shaft hole that is connected with junction plate 4 and some locking holes of spacing front leg strut 3 on the swivel base 5.

The utility model device, by lift oil tank 2 jacking derricks 1, make derrick 1 around axis of rotation 10 rotations, front leg strut 3 produces relative motion with swivel base 5, simultaneously swivel base 5 rotates around otic placode 7, junction plate 4 axis holes, derrick 1 change be raised to desired location plug bearing pin 6 by operating personnel can this position derrick 1 is fixing.

The utility model device simple in structure cooperates circular arc platform on the derrick body, walks on stage, and can insert bearing pin easily, and processing safety has been improved in locking derrick angle position, and is easy to operate, has promotional value in the slant rig field.

Claims

1. slant rig derrick angular adjustment apparatus, it is characterized in that: the lower end of derrick (1) is hinged by axis of rotation (10) and workbench, lift oil tank (2) is hinged on the pedestal with the lower end of front leg strut (3), the hypomere of the upper end of lift oil tank (2) and derrick (1) is hinged, hypomere crossbeam one side at derrick (1) is fixed with otic placode (7), the opposite side correspondence is equipped with junction plate (4), connect by the horizontally disposed short beam of twice (8) between junction plate (4) and the otic placode (7), be set with swivel base (5) on front leg strut (3), swivel base (5) is hinged with junction plate (4) and otic placode (7) respectively by the rotating shaft (11) on both sides.

2. slant rig derrick angular adjustment apparatus according to claim 1 is characterized in that: the rotating shaft (11) of described junction plate (4) is positioned at junction plate (4) and place, the same axle center of otic placode (7), and rotating shaft (11) is fixed on swivel base (5) both sides.

3. slant rig derrick angular adjustment apparatus according to claim 1, it is characterized in that: described swivel base (5) is provided with locating hole, front leg strut vertically is provided with some locking holes on (3), and the locking hole of the locating hole of swivel base (5) and front leg strut (3) is pegged graft by alignment pin (6).