The rack-and-pinion rig
Technical field
The utility model belongs to the oil exploration equipment technical field, relates to a kind of rack-and-pinion rig.
Background technology
Oil-well rig is the device that is used for the oil exploitation drillng operation, conventional drill main body generally comprises that derrick, base, winch, overhead traveling crane, tourist bus, hook, water tap or top are driven, dead line anchor, wire rope, rope winding jib, driller control house etc., rig mainly contains lifting and rotates two big functions, the enhanced feature of conventional rig mainly drives the drilling tool that the hook, water tap or the top that are suspended on the tourist bus bottom drives and hang by winch rotation lay winding wire ropes by overhead traveling crane (fixed pulley), tourist bus (movable pulley) and moves up and down and finish enhanced feature.This kind structure is the most frequently used rig form at present, the subject matter that exists is: complex structure, and equipment is huge, the trouble point is many, maintaining point is many, buying and use cost height, the transmission of power chain length, mechanical efficiency is low, put forward function, the operation of can not pressurizeing on having only simultaneously.
The utility model content
The purpose of this utility model provides a kind of rack-and-pinion rig, and the equipment in the existing conventional rig of having solved is huge, the maintenance difficulty, efficient is low, cost is high; Put forward function on having only, the problems such as operation of can not pressurizeing.
The technical scheme that the utility model adopted is, a kind of rack-and-pinion rig vertically is fixed with tooth bar in the middle of derrick, derrick left side front column is fixed with left rail, derrick right side front column is fixed with right guide rail, one cover lifting appliance is installed on tooth bar, left rail and the right guide rail
Horizontal symmetrical is equipped with paired gear, two reduction boxes, two motors, two brake gears in the lifting appliance, and promptly each reduction box is connected with a cover motor and a brake gear, and each reduction box is connected with a joggle by the teeth of wheel and rack; Be connected with the top in the bottom of lifting appliance and drive, be provided with the hook set sensor between driving on lifting appliance and top.
Rack-and-pinion rig of the present utility model, its characteristics also are: the opposite side that a side of described lifting appliance respectively is furnished with cover left leading block, a lifting appliance up and down respectively is furnished with the right leading block of a cover up and down, and lifting appliance is slidingly connected with the left rail and the right guide rail of derrick respectively by two left leading blocks and two right leading blocks.
Advantage of the present utility model and effect: simple in structure, compact dimensions, in light weight, buying and use cost is low, maintaining is simple, damageable spare parts is few; Move up and down on tooth bar by direct geared and to finish enhanced feature, the transmission efficiency height; By rack-and-pinion is positive drive, promptly can finish the lifting operation, the operation of also can pressurizeing.
Description of drawings
Fig. 1 is a rack-and-pinion rig schematic side view of the present utility model;
Fig. 2 is a rack-and-pinion rig front elevational schematic of the present utility model;
Fig. 3 is the cross-sectional schematic that rack-and-pinion rig lifting appliance of the present utility model is connected with tooth bar.
Among the figure, 1. derrick, 2. base, 3. drive on the top, 4. gear, 5. reduction box, 6. motor, 7. brake gear, 8. lifting appliance, 9. tooth bar, 10. hook set sensor, 11. left rails, 12. right guide rails, 13. left leading blocks, 14. right leading blocks.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
With reference to Fig. 1, Fig. 2, structure of the present utility model is, on rig substructure 2, be installed with derrick 1, in the middle of derrick 1, vertically be fixed with tooth bar 9, (from the front of derrick 1), the both sides of tooth bar 9 are equipped with teeth, derrick 1 left side front column is fixed with left rail 11, derrick right side front column is fixed with right guide rail 12, tooth bar 9, one cover lifting appliance 8 is installed on left rail 11 and the right guide rail 12, horizontal symmetrical is equipped with paired gear 4 in the lifting appliance 8, reduction box 5, motor 6 (or hydraulic motor), brake gear 7, each reduction box 5 is connected with gear 4 that cover motor 6 and 7, two reduction boxes 5 of brake gear connect by transmission system and is connected with a joggle with the both sides teeth of tooth bar 9 respectively; Be connected with the top in the bottom of lifting appliance 8 and drive 3, be provided with hook set sensor 10 between driving 3 on lifting appliance 8 and top.Omitted the structure of ladder among Fig. 2.
With reference to Fig. 3, the opposite side (right side) that respectively is furnished with the left leading block 13 of a cover, lifting appliance in the side (left side) of lifting appliance 8 up and down respectively is furnished with the right leading block 14 of a cover up and down, and lifting appliance 8 is slidingly connected with the left rail 11 and the right guide rail 12 of derrick respectively by left leading block 13 and right leading block 14.By bolt reduction box 5 is arranged in the lifting appliance 8, reduction box 5 leading portions are equipped with the gear 4 identical with tooth bar 9 moduluses, reduction box 5 afterbodys are equipped with motor 6, and the afterbody of motor 6 is equipped with brake gear 7, simultaneously with motor 6 by being bolted on the lifting appliance 8.Lifting appliance 8 is provided with the gear 4 of 2 covers, 4 covers, 6 covers according to the difference that the rig hook carries.
Reduction box 5, motor 6, brake gear 7 are supporting in pairs, and symmetry is installed on the lifting appliance 8 respectively.During operation hook carry by the top drive 3 and lifting appliance 8 pass to gear 4, pass on tooth bar 9 and the derrick 1 by gear 4 again, by the top drive 3 and lifting appliance 8 between hook set sensor 10 output top drive hook and carry signal and give the driller.
When making a trip, put moving up and down on the tooth bar 9 to put on carrying out by motor 6 and reduction box 5 swing pinions 4, a left side leading block 13 and right leading block 14 are respectively along left rail 11 with right guide rail 12 moves and provide guiding for lifting appliance 8, lifting appliance 8 moves both vertically up and down when guaranteeing that rig makes a trip, and does not depart from well head.Motor 6, reduction box 5 and gear 4 are checked in brake gear 7 actions when needing brake, guarantee that lifting appliance 8 reliably rests on the tooth bar 9.
The drilling tool that conventional rig drives the hook, water tap (or drive on the top) and the suspension that are suspended on the tourist bus bottom by winch rotation lay winding wire ropes by overhead traveling crane (fixed pulley), tourist bus (movable pulley) moves up and down and finishes enhanced feature, and the winding efficient of wire rope is low.And the utility model rack-and-pinion rig moves up and down on tooth bar by direct geared and finishes enhanced feature, the transmission efficiency height.
Conventional rig promotes operation by wire rope, because wire rope is flexible, can't finish pressurization function.And the utility model rack-and-pinion rig is positive drive by rack-and-pinion, can finish the lifting operation, the operation of also can pressurizeing.
The utility model is compared with existing conventional rig, save overhead traveling crane, tourist bus, hook, wire rope, dead line anchor, winch (replacing), rope winding jib etc., simple in structure, compact dimensions, in light weight, buying and use cost is low, maintaining is simple, damageable spare parts is few with lifting appliance.