CN2309442Y

CN2309442Y - Beamless geared pumping unit

Info

Publication number: CN2309442Y
Application number: CN 97229609
Authority: CN
Inventors: 金成群
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-09
Filing date: 1997-10-09
Publication date: 1999-03-03
Anticipated expiration: 2007-10-09

Abstract

The utility model relates to the improvement of a pumping unit for petroleum. A polished rod of an oil well pump is connected with a balance weight iron through a coupler and two wide belts. An electric motor, a gear box, and rocker arm boxes are arranged on the balance weight iron. The electric motor uses a triangle belt to cause the rotary torque to be transferred to the gear box and the two rocker arm boxes, and to be transferred to a chain wheel at last. Two annular pin tooth frames which are vertically fixed on the chain wheel and a main body frame are engaged to drive the balance weight iron to do reciprocating movement from top to bottom along the pin tooth frame. Compared with a beam pumping unit, the utility model has the advantages that the energy can be saved 50%, the oil pumping ratio can be enhanced more than 30%, and the increase of the length of stroke does not need to change the power of the electric motor. The utility model is suitable for oil pumping field use with a long stroke and a low stroke frequency.

Description

No walking beam gear transmission pumping unit

The utility model relates to the improvement to a kind of petroleum extractor.

Usually the beam pumping unit energy consumption is big, and efficient is low, and stroke is less than six meters, and jig frequency is generally at 6-9 time/minute, and raw materials consumption is big.

The purpose of this utility model is to provide a kind of no walking beam gear transmission pumping unit, and it is low to have an energy consumption, oil pumping rate height, and stroke is long, saves characteristics such as steel.

The utility model is to realize so in conjunction with the accompanying drawings.Fig. 1 is no walking beam gear transmission pumping unit structural representation.The polished rod 1 of oil well pump is connected with two wide belts 5 by coupling piece 2, and wide belt is connected the polished rod in balance weight iron and the oil well pump and the balanced of oil column through each two belt pulley 7 of front and back with hanger on the balance weight iron 17 respectively.Transmission case 16 is housed in the middle of the balance weight iron, respectively has one to broadcast arm case 15 before and after the transmission case, all be equipped with on the transmission case on motor 6, the transmission case input shaft break 20 is housed, speed change lever 4 is equipped with in the side.Motor shaft is connected with the transmission case axle by v belt 3, and the transmission case axle is nibbled platform with the rocker box axle mutually by gear, rotation torque is passed on the sprocket wheel 14 of two rocker box ends.Sprocket wheel is meshed with two annular pin braces 11 that the vertical welding in main body frame 19 both sides is fixed, and it is reciprocating up and down along the pin braces to drive balance weight iron, for making sprocket wheel and pin braces accurately engagement and restriction sprocket wheel movement locus, be provided with annular outer guide 12 in pin braces outside.Four guide wheel guide rails 13 of vertical fixing on four jiaos in framework are equipped with eight guide wheels 18, to guarantee balance weight iron and driving mechanism thereof vertical upper and lower easy motion in framework on corresponding four jiaos of balance weight iron and framework.Be provided with day vehicle frame 8 in frame roof, by leading screw 9 and rotation hand wheel 10, the distance between adjustable pitch width belt and the pumping well is convenient to install and the well head maintenance.

The transmission of motor torque realizes by transmission case and two rocker box A, D.Accompanying drawing 4 has specifically provided the structural representation of transmission case and two rocker box.Motor shaft links to each other with I axle among the transmission case B by v belt, gear 26 on the I axle is meshed with gear 40 on the II axle, the coupling 38 of II axle one end is passed to bevel pinion 36 among the transmission case e to moment of torsion, bevel pinion is meshed with bevel gear wheel 37, make the rotation of VII axle, the moment of torsion on the VII axle passes to rocker box A and D by 30 fens two-way of gear.In rocker box D,, pass to the gear 35 on the V axle by the gear on the VIII axle 33,34.Among the rocker box A, gear 30 directly meshes with gear 35 on the VI axle, again with the IX axle on

gear

32,31, gear 29 on the IV axle pass to sprocket wheel and make two terminal sprocket wheel sense of rotation of rocker box opposite, speed is identical.24,28 is bearing, and 27 draw device for speed change.When two wide belts when polished rod in the oil well pump is not connected, promote up and down for making balance weight iron depend merely on motor, need to increase velocity ratio, so that improve driving torque.In transmission case B, also be provided with speed change gear, on the II axle,, be meshed with gear 41 on the III axle simultaneously by gear 22, duplicate gear 21 and gear 25 engagements.When pulling speed change lever 4, height closes device 23 and moves simultaneously with gear 40, clutch 23 and gear 25 engagements, gear 40 is with after 26 separate, and with gear 39 engagements, so the moment of torsion of I axle is passed to gear 25 through clutch, the duplicate gear 21 that is enclosed within on the II axle with sky meshes, pass to duplicate gear 41 on the III axle by gear 22 again, gear 39 and gear 40 engagements are passed to the II axle to moment of torsion.Moment of torsion on the II axle is passed to gear 36 through shaft coupling knot 38, passes at last on the terminal sprocket wheel of two rocker box, and so operation sheet also can make balance weight iron pump by the strength of motor.

The no walking beam gear transmission pumping unit of making according to said structure, the motor driving transmission case also drives rocker box and vacillates now to the left, now to the right, sprocket wheel is pumped along guide rail, be that balance weight iron pumps, do same motion by the oil well pump that belt makes polished rod be connected with polished rod again, thereby realize the purpose of oil pumping.This machine is compared with beam pumping unit, can save energy 50%, and pumping efficiency improves more than 30%, and improving length of stroke does not need to change power of motor, is fit to on-the-spot use of oil pumping of long stroke, low jig frequency.

Description of drawings:

Fig. 1 does not have walking beam gear transmission pumping unit structural representation

Fig. 2 Fig. 1 A-A is to view

Fig. 3 Fig. 1 plan view

Fig. 4 transmission case, rocker box structural representation are enclosed

Fig. 5 transmission case A part working state schematic representation

Embodiment: according to structure shown in the accompanying drawing, main gear tooth number Z of transmission case and modulus ratio M are as follows:

Gear	21	39	25	26	11	22	40	29	31	32	30	33	34	35	37	36	14
Gear	21	39	25	26	11	22	40	29	31	32	30	33	34	35	37	36	14	Z	55	27	33	49	47	26	40	38	6	17
M	4							6			8							Z	55	27	33	49	47	26	40	38	6	17

Power of motor 18.5-37KW, pumping unit gross weight 17-21 ton.

12 type beam pumping units of same 6 meters strokes, power of motor 45-75KW, pumping unit gross weight 34-39 ton.

After tested: this no walking beam gear transmission pumping unit is compared with beam pumping unit, can save energy 50%, and the oil pumping rate improves more than 30%.

Claims

1, a kind of no walking beam gear transmission pumping unit, the polished rod 1 that it is characterized in that oil well pump is connected with two wide belts 5 by coupling piece 2, wide belt is connected with hanger on the balance weight iron 17 through each two belt pulley 7 of front and back respectively, transmission case 16 is housed in the middle of the balance weight iron, a rocker box 15 is respectively arranged before and after the transmission case, motor 6 is equipped with on transmission case top, break 20 is housed on the transmission case input shaft, speed change lever 4 is equipped with in the side, motor is connected with the transmission case axle by v belt 3, the transmission case axle is meshed by gear with the rocker box axle, rotation torque is passed on the sprocket wheel 14 of two rocker box ends, sprocket wheel is meshed with two annular pin braces 11 that the vertical welding in main body frame 19 both sides is fixed, be provided with annular outer guide 12 in pin braces outside, four guide wheel guide rails 13 of vertical fixing on four jiaos in framework, on corresponding four jiaos of balance weight iron and framework, eight guide wheels 18 are housed, be provided with day vehicle frame 8 in frame roof, on day vehicle frame four width belt wheels be housed.