CN201705302U

CN201705302U - Oil extractor with planetary drive reversing rack

Info

Publication number: CN201705302U
Application number: CN2010201309537U
Authority: CN
Inventors: 陈建武
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-04
Filing date: 2010-02-04
Publication date: 2011-01-12
Anticipated expiration: 2020-02-04

Abstract

The utility model discloses an oil extractor with a planetary drive reversing rack, which relates to oil extracting mechanical equipment and aims at providing the oil extractor with simple manufacture, favorable energy-saving effect and reliable and stable operation. The oil extractor is characterized in that an output shaft of a speed reducer arranged in the middle of a stand is provided with a sun gear and a planet carrier, wherein the planet carrier is provided with a planet wheel; a pair of difference gears is arranged on the shaft; and one gear is meshed with the sun gear and the other gear is meshed with an annular external gear. Since two ends of the gear are in a semicircularly long annular shape, when the sun gear is meshed with the planet gear to rotate, the planet gear is meshed with an annular gear to operate; and when operating to an annular semi-toothed surface, the planet gear walks from one side to the other side of the gear through the semi-toothed surface and thereby natural reverse can be finished. The utility model enables the annular rack to linearly reciprocate in a guide rail of a guide wheel and drive a pulley rope belt at the top of the stand, thereby realizing basic actions of up-down reciprocation of an oil extracting rod of the oil extractor.

Description

Gear Planet Transmission commutation rack oil pumping machine

Technical field

The utility model relates to petroleum recovering machinery field, specifically is a kind of Gear Planet Transmission commutation rack oil pumping machine.(hereinafter to be referred as rack oil pumping machine)

Background technology

At present, recover the oil and be traditional beam pumping unit in the oil field, though through various improvement and long-lived characteristics, its motion principle is constant, still has the high deficiency of energy consumption.The patent No. is: 200920019023.1 long annular rack oil pumping machine and number of patent application are: the microscler rack oil pumping machine of 200910020560.2 tilting, what adopt is to do reciprocating linear motion by annular rack of a pinion one way engagement, drive rope, promote sucker rod through pulley and move up and down.This product is not ostracised when making the pinion tooth bar and is remained engagement, and that leans on is mounted in directive wheel on the pinion in the annular groove of the balance weight of stationary rack, ensures the movement locus of pinion in cannelure.During commutation, when annular semicircle tooth was engaged to the another side flank of tooth, what lean on was the horizontal move left and right of break-in frame to pinion from one side flank of tooth of tooth bar.This structure exists: directive wheel contact surface in groove is little, and load is big, and quick abrasion causes pinion swing gap big, loses the accuracy of mesh, and other damage of components are accelerated.In addition, the break-in frame is when moving horizontally, and the center to center distance of motor belt also can change thereupon, and the belt degree of tightness is differed.Also there is simultaneously the manufacturing process complexity.

The utility model content

The purpose of this utility model is the deficiency that overcomes in the above-mentioned technology, provides a kind of manufacturing process technology simple, good energy-conserving effect, and reliable stable, long service life is utilized the Gear Planet Transmission principle, need not the linear oil pumping machine of positive decommuntation.Be characterized on the speed reducer output shaft that central rack installs a sun gear and a planet carrier being installed, one planet axis is installed on this planet carrier, a pair of difference gear is installed on this axle, a wherein gear and sun gear engagement, another gear then meshes the outer tooth bar of an annular, because these tooth bar two ends are the long annular of semicircle, therefore, two planetary gears on sun gear engagement in rotation planet carrier rotate, planetary gear then meshes the annular rack operation, when moving to the annular semicircle flank of tooth, planetary gear runs to another side through the semicircle flank of tooth from the one side of tooth bar, and natural commutation makes it annular rack straight reciprocating motion in the guide wheel guide rail, drive the suspension pulley rope band of frame top, thereby realize the elemental motion that oil pumper pumps.

The utility model is simple in structure, and is reliable, safety and stability, and adopt the motion of gear one way engagement to need not positive decommuntation, therefore have characteristics such as long service life, good energy-conserving effect, easy to maintenance, economy and durability.

Description of drawings

Fig. 1 is the main structure chart of rack oil pumping machine;

Fig. 2 is the left TV structure figure of Fig. 1;

Fig. 3 is the local amplification assumption diagram of Fig. 1;

Fig. 4 is the planet carrier AA sectional view of rack oil pumping machine;

Fig. 5 is the rack-and-pinion engagement operation logic figure of rack oil pumping machine.

Among the figure: 1 motor, 2 reductors, 3 pulling force movable pulley, 4 output shafts, 5 sun gears, 6 planet axis, 7 planet carriers, 8 planet gear wheel, 9 planet pinions, 10 pulleys, 11 rope bands, 12 tooth bar seats, 13 belt tooth bars, 14 rope devices, 15 sucker rods, 16 frames, 17 crossbeams, 18 guide wheel guide rails, 19 are shipped and resell on another market.

The specific embodiment

From accompanying drawing, rack oil pumping machine is by reductor, motor, frame, planetary gear, planet carrier, annular rack, compositions such as guide wheel guide rail and pulley, rope band.One reductor 2 is installed on the platform at frame 16 middle parts, one sun gear 5 and a planet carrier 7 are installed on the output shaft 4 of this reductor, one planet axis 6 is installed on this planet carrier 7, an one planet gear wheel 8 and a planet pinion 9 are installed on this planet axis 6, wherein planet gear wheel 8 meshes with

sun gear

5,9 of another planet pinions and annular rack 13 engagements, this annular rack 13 is installed on the

tooth bar seat

12,12 of this tooth bar seats are in guide wheel guide rail 18, make it rectilinear motion, guide wheel guide rail 18 is installed on the frame 16.See accompanying drawing, being equipped with one at the top of frame 16 can 19 be the crossbeam 17 that rotate at the center to ship and resell on another market, and on the top of crossbeam 17 the rope band suspension is installed, and is made up of pulley base, pulley 10 and rope band 11.But other ropes that the rope band wire rope is also soft.The upper end of above-mentioned annular rack 13 is equipped with a pulling force movable pulley 3, a pile warp pulling force movable pulley 3 of rope band 11 is fastened on the crossbeam 17, the other end then is connected with rope device 14 on the sucker rod 15, see Fig. 1, annular rack about in the of 13 rectilinear motion then drive rope band 11 and sucker rod 16 promoted and puts down through pulley 10, thereby reached the purpose of oil pumping.Because pulling force movable pulley 3 has been installed on tooth bar seat 12 tops, therefore, the stroke up and down of annular rack 13 then makes the stroke up and down of sucker rod 15 double.Therefore above-mentioned crossbeam 17, has solved the trouble that oil well need move owing to can 19 horizontally rotate to ship and resell on another market when well workover.

Its structure and transmission principle are;

Rotate when motor 1 drives reductor 2, the sun gear 5 that is installed on the output shaft 4 rotates, and the planet gear wheel 8 on the sun gear engagement planet carrier 7 is rotated, and promptly planet pinion 9 rotates.Planet pinion engagement annular rack 13 is done straight reciprocating motion.As can be seen from Figure 5, when planet pinion 9 rotations make annular rack 13 move to semi-round ring shape, at this moment annular rack stop motion, be that the planet pinion drives planet carrier 7 and walks 180 to the right when spending to the rack linear flank of tooth along tooth bar annular semicircle, at this moment annular rack 13 and tooth bar seat 12 begin in the direction of arrows that straight line moves upward in guide wheel guide rail 18, see Fig. 5.When annular rack when going upward to the annular semicircle of lower end, at this moment planet pinion is walked left in above-mentioned same mode and 180 is spent to the straight line flank of tooth, i.e. annular rack 13 beginnings operation downwards to being returned to said process, thereby makes it the reciprocation cycle motion.Reach the purpose that oil pumper is pumped up and down.See accompanying drawing.Balance can be substituted by the own wt of tooth bar seat and annular rack, also can be below annular rack or above add a balancing weight in addition.Can increase or reduce the tooth bar quantity that is installed on the tooth bar seat 12 when adjusting stroke as need.See Fig. 2.

The present invention is because simple in structure, and transmission principle rationally reaches reliable stable, and adopts gear engagement single-direction transmission, just therefore decommuntation has long service life, good energy-conserving effect, easy to maintenance, satisfied the reliable and energy-conservation first requirement of oil-field oil pumper economy and durability.

Claims

1. a Gear Planet Transmission commutation rack oil pumping machine is made up of reductor, motor, frame, planetary gear, planet carrier, guide wheel guide rail, belt tooth bar and rope band, pulley, it is characterized in that: a sun gear (5) and planet carrier (7) are installed on the output shaft (4) of reductor (2), one planet axis (6) is installed on this planet carrier (7), an one planet gear wheel (8) and a planet pinion (9) are installed on this planet axis (6), wherein planet gear wheel (8) meshes with sun gear (5), and planet pinion (9) then meshes with annular rack (13).

2. according to the described Gear Planet Transmission commutation of claim 1 rack oil pumping machine, it is characterized in that: annular rack (13) is installed in the tooth bar seat (12), and then in guide wheel guide rail (18), guide wheel guide rail (18) is installed on the frame (16) this tooth bar seat (12).

3. according to claim 1 or 2 described Gear Planet Transmission commutation rack oil pumping machines, it is characterized in that: the upper end of annular rack (13) is equipped with a pulling force movable pulley (3), a pile warp pulling force pulley (3) of rope band (11) is fastened on the crossbeam (17), and the other end then is connected with rope device (14) on the sucker rod (15).

4. according to claim 1 or 2 described Gear Planet Transmission commutation rack oil pumping machines, it is characterized in that: it can be the crossbeam (17) that rotate at the center with ship and resell on another market (19) that the top of frame (16) is equipped with one.