Half directly-drive permanent magnet motor
Technical field
The utility model relates to pumping unit technical field more particularly to pumping unit speed reducer actuation techniques.
Background technique
Pumping unit is a kind of machinery equipment for exploiting petroleum, and existing Pumping Unit is usually to input axle suspension in speed reducer
Major diameter belt pulley is hung, is driven and is run by belt by asynchronous machine, which has the disadvantage in that
(1), driving volume is larger;
(2), belt serious wear, is frequently replaced, and maintenance workload is big;
(3), belt tension is difficult to adjust, and transmission efficiency is unstable, universal relatively low;
(4), load factor changes greatly in pumping unit operational process, and asynchronous machine fluctuates under larger operating condition in this load factor
Power factor itself and efficiency are relatively low.
Utility model content
In order to solve the above problem existing for existing oil-field oil pumper speed reducer driving mechanism, the utility model provides one
Kind half directly-drive permanent magnet motor.
The utility model technical solution used for the above purpose is: half directly-drive permanent magnet motor, 7 inside of motor casing
Motor stator 8 is installed, motor stator 8 is equipped with machine winding 6, and speed reducer input shaft 3 runs through reducer shell 2 and connection end cap
5 are installed in motor casing 7, and connection end cap 5 is fixed on reducer shell 2, and 3 end of speed reducer input shaft is connected by axle sleeve 13
Rotor 10,13 end of axle sleeve are fixed on speed reducer input shaft 3 by axle sleeve baffle 12.
13 front end of axle sleeve is equipped with groove 17, and axle sleeve baffle 12 is installed in groove 16 and is fixed on deceleration by screw
On machine input shaft 3.
Upper head plate 16 and bottom plate 15 are installed in 7 front of motor casing up and down, corresponding between upper head plate 16 and bottom plate 15
Lid 11 is installed, lid 11 is fixed by bolts on upper head plate 16 and bottom plate 15 at speed reducer input shaft 3.
Single-groove grooved ball bearing 14 is installed between the upper head plate 16, bottom plate 15, connection end cap 5 and rotor 10.
Mounting and adjusting washer 4 between the connection end cap 5 and bearing in reduction gears 18.
Described 8 one end of motor stator is fixed by seam allowance location and installation in connection end cap 5 and by screw, bottom plate 15
8 other end of motor stator is fixed on by screw.
The iron core axial length of the rotor 10 is greater than 8 iron core axial length of motor stator.
The half directly-drive permanent magnet motor of the utility model replaces original asynchronous machine and belt to drive using half directly-drive permanent magnet motor
It is dynamic, it has the advantage that
(1), drive part land occupation is obviously reduced;
(2), cancel belt pulley, save belt maintenance and more change jobs, while avoiding belt pretightning force to transmission efficiency shadow
It rings;
(3), load factor variation is on magneto efficiency almost without influence, and motor remains that high energy efficiency is run, and energy conservation is bright
It is aobvious;
(4), the fixed motor stator of speed reducer, coaxially connected rotor, simple and reliable for structure, save the cost are borrowed.
Detailed description of the invention
Fig. 1 is the utility model half directly-drive permanent magnet electric machine structure figure.
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: 1, connection box for motor, 2, reducer shell, 3, speed reducer input shaft, 4, adjusting washer, 5, connection end cap,
6, machine winding, 7, motor casing, 8, motor stator, 9, magnet steel, 10, rotor, 11, lid, 12, axle sleeve baffle, 13, axle sleeve,
14, bearing, 15, bottom plate, 16, upper head plate, 17, groove, 18, bearing in reduction gears.
Specific embodiment
The half directly-drive permanent magnet electric machine structure of the utility model using low-speed half direct-driven magneto as shown in Figure 1, directly driven
Dynamic speed reducer operation, cancels original asynchronous machine, belt pulley and belt.Simultaneously according to its practical service condition, to motor knot
Structure optimizes, and half directly-drive permanent magnet main component of electrical machine includes: adjusting washer 4, connection end cap 5, motor stator 8, axle sleeve 13, axis
Cover baffle 12, rotor 10, bearing 14 and end plate 15.
Specific structure is as follows: motor stator 8 is installed on the inside of motor casing 7, motor stator 8 is equipped with machine winding 6, and motor is fixed
Sub 8 one end are fixed by seam allowance location and installation in connection end cap 5 and by screw, and connection end cap 5 is fixed on by screw to be subtracted
On fast casing body 2,8 other end of motor stator is fixed on end plate 15 by screw, and speed reducer input shaft 3 runs through reducer shell
2 and connection end cap 5 be installed on 7 inner connecting end lid 4 of motor casing and connect with 7 rear end of motor casing, 3 end of speed reducer input shaft passes through axis
13 connection rotor 10 of set, 10 end of rotor are equipped with magnet steel 9, and 13 front end of axle sleeve is equipped with groove 17, and axle sleeve baffle 12 is pacified
Loaded on being fixed on speed reducer input shaft 3 in groove 17 and by screw, installs and adjust between connection end cap 5 and bearing in reduction gears 18
Whole washer 4.Upper head plate 16 and bottom plate 15 are installed in 7 front of motor casing up and down, corresponding between upper head plate 16 and bottom plate 15 to slow down
Lid 11 is installed at machine input shaft 3, lid 11 is fixed by bolts on upper head plate 16 and bottom plate 15, upper head plate 16, bottom plate 15,
Single-groove grooved ball bearing 14 is installed between connection end cap 5 and rotor 10;The iron core axial length of rotor 8 is greater than motor
5 iron core axial length of stator.
Motor stator 8 is fixed by connection end cap 5 and reducer shell 2, rotor 10 is passed through axle sleeve 13 and subtracted
Fast machine input shaft 3 is fixed, and motor stator 8 is fixed when motor is powered, then rotor 10 drives speed reducer input shaft 3 to revolve
Turn, drives pumping unit operation.Wherein, adjusting washer 4 is for holding out against 18 outer ring of bearing in reduction gears;Axle sleeve 13 is according to different model
Speed reducer input shaft structure, size are adjusted, and are processed convenient for rotor 10 is unified;Axle sleeve baffle 12 be used for fastening shaft sleeve
13 with rotor 10.10 iron core axial length of rotor is effectively avoided slightly larger than 8 iron core axial length of motor stator
Since speed reducer input shaft axial float has an impact motor performance.
Motor installation process is as follows: firstly, mounting and adjusting washer 4 and connection end cap 5, by seam allowance location and installation motor stator
It 8 and is fixed by screw;Secondly, installing axle sleeve 13 and being compressed by axle sleeve baffle 12;Again, rotor 10 is installed, due to electricity
Machine stator 8, rotor 10 and axle sleeve 13 are co-axially mounted with speed reducer input shaft 3, while 13 front end of axle sleeve has certain chamfering,
Therefore rotor 10 is not easy to hit stator because of magnet steel suction, easy for installation;Finally, installation bottom plate 15 and lid 11, so far partly
Direct-drive permanent-magnetism motor is installed.