CN201608610U - Permanent magnet synchronous motor for pumping unit - Google Patents
Permanent magnet synchronous motor for pumping unit Download PDFInfo
- Publication number
- CN201608610U CN201608610U CN200920190157XU CN200920190157U CN201608610U CN 201608610 U CN201608610 U CN 201608610U CN 200920190157X U CN200920190157X U CN 200920190157XU CN 200920190157 U CN200920190157 U CN 200920190157U CN 201608610 U CN201608610 U CN 201608610U
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- brake
- permanent magnet
- magnet synchronous
- synchronous motor
- motor
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Abstract
The utility model provides a permanent magnet synchronous motor for a pumping unit, belonging to a driving device of pumping equipment in an oil field and particularly meeting the braking requirements of frequent forward and reverse rotation of a motor of the pumping unit. An output shaft at the tail end of a permanent magnet synchronous motor body (1) is added with a brake drum (3), a brake bracket (2) is arranged on a rear cover of the permanent magnet synchronous motor and provided with brakes (4), a protective cover (5) is arranged outside the brakes (4), a spline housing is omitted, when the motor runs normally, the brakes (4) pull in, the brake drum (3) rotates forwardly and reversely together with a rotating shaft of the motor, harmful friction can not generate when the motor runs, when braking is needed, the brakes (4) release and conduct braking by holding the brake drum (3), at least one brake drum (3) is available, the number of the brake (4) depends on the torque, and the brakes are distributed evenly on the brake bracket (2). The permanent magnet synchronous motor has the characteristics of high efficiency, energy conservation, low noise, low vibration, safety, reliability, simple structure and convenient maintenance, and reducing the maintenance cost of the pumping unit.
Description
Technical field
The utility model provides a kind of used for oil extractor permanent magnet synchronous motor, belongs to the drive unit of oil field pumping unit, especially adapts to the brake request of the frequent forward and reverse rotation of motor of oil pumper.
Background technology
The oil-field oil pumper motor of extensive use at present is an asynchronous machine, and shortcoming is: power factor is low, poor controllability, starting current are big, is not suitable for frequent rotating.Also have and adopt rare-earth permanent-magnet electric machine or linear electric motors, aspect controllability and efficient, High Power Factor aspect good performance is all arranged, be adapted to frequent rotating, be the representative of energy-saving electric machine of new generation.But as the oil field motor, except that having efficient energy-saving, controlled, rotating, needs also to be satisfied with some safety requirements, as: braking or moment keep, and it is very outstanding that this demand shows in some new pumping unit, for example China Patent No.: 200720029427.5.Brake in the present oilfield machinery adopts following dual mode mostly: 1, a kind of is tradition axle braking device, axle braking device generally is connected with motor is coaxial, its inherent structure characteristics of axle braking device require to have the existence of spline housing, spline housing and motor shaft are direct-connected, frictional disk adopts spline to be connected with spline housing, the extruding that frictional disk is subjected to brake armature when needing braking is done axial displacement along spline, and produce frictional resistance torque braking with brake disc, between the spline of flower keyboard and spline housing, must leave certain clearance, this gap can make frictional disk produce when not needing to brake and float, special motor for frequent forward and reverse commentaries on classics, the spline of frictional disk constantly clashes into spline housing, frictional disk constantly with brake disc mutually mutual friction or with the friction of brake armature, produce noise and cause the damage of spline housing or the too early wear out failure of frictional disk, reduce the useful life of brake.2, another kind is a hydraulic brake, and the hydraulic brake complex structure must be joined the specific hydraulic pump, and cost is very high, has the problem of leakage of oil simultaneously always, safeguards loaded down with trivial details.
Chinese patent by retrieval, the invention of relevant brake aspect is few, and these and the utility model are also inequality.
Summary of the invention
The purpose of this utility model is intended to overcome the shortcoming of above-mentioned motor and brake existence; a kind of used for oil extractor permanent magnet synchronous motor is provided; drive unit for the oil field pumping unit; the brake request that can adapt to the frequent forward and reverse rotation of motor of oil pumper; this motor is a permanent magnet synchronous motor; it and brake are designed to one; have energy-efficient, High Power Factor, low noise, safe and reliable characteristics; especially the frequent forward and reverse rotation of motor and the brake request that adapt to oil pumper; have braking protection or moment and keep function, brake is long-lived reliable.
Concrete technology contents of the present utility model label in conjunction with the accompanying drawings is described below: a kind of used for oil extractor permanent magnet synchronous motor, on the tail end output shaft of permanent magnet synchronous motor body 1, increase a braking hub 3, with brake support frame 2 of installation on the bonnet of permanent magnet synchronous motor, brake 4 is installed on the brake support frame 2, there is protective cover 5 outside of brake 4, cancelled spline housing, can not produce harmful friction during the motor operation, wherein, permanent magnet synchronous motor body 1 provides power for oil pumper, described braking hub 3 has one at least, the braking hub is connected with the tail end output shaft of permanent magnet synchronous motor body 1 by flat key, described brake support frame 2 is connected by the rear end cap of bolt with permanent magnet synchronous motor body 1, described brake 4 is selected suitable quantity according to the size of moment, be evenly arranged on the brake support frame 2, described brake 4 can keep using for the frequent forward and reverse turning motor braking and the moment of oil pumper.
The utility model has been realized goal of the invention; has following good effect: this used for oil extractor permanent magnet synchronous motor; the frequent forward and reverse rotation of motor and the brake request that can adapt to oil pumper; the permanent magnet synchronous motor and the brake of this device are designed to one; the product design neat appearance; have energy-efficient; High Power Factor; low noise; safe and reliable characteristics; especially have braking protection or moment and keep function; the brake life-span is long; safe and reliable; it is big, bad easily to can solve in the oil-field oil pumper brake noise, the problem of leakage of oil; and convenient for installation and maintenance, be the comprehensive expression of person of oil field of new generation motor.In a word, the utlity model has have energy-efficient, low noise, low vibration, safe and reliable characteristics, and it is big well to solve the brake noise of oil-field oil pumper, rapid wear, the leakage of oil problem has the characteristics that get simple in structure, easy to maintenance simultaneously, has reduced the maintenance cost of oil pumper.
Description of drawings
Fig. 1 looks schematic diagram for the utility model master;
Fig. 2 looks schematic diagram for the left side of Fig. 1.
Mark among the figure: 1, permanent magnet synchronous motor body, 2, brake support frame, 3, the braking hub, 4, brake, 5, protective cover.
Embodiment
Accompanying drawing 1,2 is a most preferred embodiment of the present utility model, further describes the utility model detailed technology content and embodiment below in conjunction with accompanying drawing.
A kind of used for oil extractor permanent magnet synchronous motor is increasing brake support frame 2 of installation on a braking hub 3 and the bonnet at permanent magnet synchronous motor on the tail end output shaft of permanent magnet synchronous motor body 1, brake 4 is installed on the brake support frame 2, there is protective cover 5 outside of brake 4, wherein
Permanent magnet synchronous motor body 1 provides power for oil pumper;
Described braking hub 3 has one at least, and the braking hub is connected with the tail end output shaft of permanent magnet synchronous motor body 1 by flat key;
Described brake support frame 2 is connected by the rear end cap of bolt with permanent magnet synchronous motor body 1;
Described brake 4 is selected suitable quantity according to the size of moment, is evenly arranged on the brake support frame 2;
Described brake 4 can keep using for the frequent forward and reverse turning motor braking and the moment of oil pumper.
Described used for oil extractor permanent magnet synchronous motor, when oil pumper was normally pumped, described brake 4 adhesives, the rotating shaft of permanent magnet synchronous motor body 1 drove braking hub 3 and rotate together, can not produce any friction and noise; When needs are braked, brake 4 release brakes 4 are embraced braking hub 3 and are braked, braking hub 3 is with the machine shaft rotating, braking hub 3 is with the machine shaft rotating, can not produce any friction and noise, brake 4 can be selected suitable quantity according to the needs of moment size, is installed in uniformly on the brake support frame 2;
When described brake 4 was chosen as two, brake 4 can be mutually and be 180 ° and be arranged on the brake support frame 2, and when described brake 4 was chosen as three, brake 4 just was mutually 120 ° and is arranged on the brake support frame 2, and reasoning is arranged according to this.
Protective cover 5 is equipped with in described brake 4 outsides, and the shape of brake 4 and protective cover 5 is consistent.
The utility model only is described in detail with regard to a most preferred embodiment of the present utility model; but can not be interpreted as the restriction of other modes that the utility model is implemented; everyly further improve and similar or identical scheme on the utility model basis, all being considered as is the scope that the utility model is asked for protection.
Claims (3)
1. used for oil extractor permanent magnet synchronous motor, it is characterized in that: on the tail end output shaft of permanent magnet synchronous motor body (1), increase a braking hub (3), with an installation brake support frame (2) on the bonnet of permanent magnet synchronous motor, brake support frame (2) is gone up brake (4) is installed, wherein
Permanent magnet synchronous motor body (1) provides power for oil pumper;
Described braking hub (3) has one at least, and the braking hub is connected by the tail end output shaft of flat key with permanent magnet synchronous motor body (1);
Described brake support frame (2) is connected by the rear end cap of bolt with permanent magnet synchronous motor body (1);
Described brake (4) is selected suitable quantity according to the size of moment, is evenly arranged on the brake support frame (2);
Described brake (4) can use for frequent forward and reverse turning motor braking of oil pumper.
2. used for oil extractor permanent magnet synchronous motor according to claim 1 is characterized in that: when described brake (4) was chosen as two, brake (4) was mutually 180 ° and is arranged on the brake support frame (2); When described brake (4) was chosen as three, brake (4) just was mutually 120 ° and is arranged on the brake support frame (2), and reasoning is arranged according to this.
3. used for oil extractor permanent magnet synchronous motor according to claim 1 is characterized in that: protective cover (5) is equipped with in described brake (4) outside, and the shape of brake (4) and protective cover (5) is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920190157XU CN201608610U (en) | 2009-07-27 | 2009-07-27 | Permanent magnet synchronous motor for pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920190157XU CN201608610U (en) | 2009-07-27 | 2009-07-27 | Permanent magnet synchronous motor for pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608610U true CN201608610U (en) | 2010-10-13 |
Family
ID=42953311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920190157XU Expired - Fee Related CN201608610U (en) | 2009-07-27 | 2009-07-27 | Permanent magnet synchronous motor for pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887921A (en) * | 2014-03-21 | 2014-06-25 | 浙江德清西传电气科技有限公司 | Motor with front-arranged brake |
-
2009
- 2009-07-27 CN CN200920190157XU patent/CN201608610U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887921A (en) * | 2014-03-21 | 2014-06-25 | 浙江德清西传电气科技有限公司 | Motor with front-arranged brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20160727 |