CN2207661Y - Starter on the shaft of winding 3-phase induction motor - Google Patents
Starter on the shaft of winding 3-phase induction motor Download PDFInfo
- Publication number
- CN2207661Y CN2207661Y CN 94216169 CN94216169U CN2207661Y CN 2207661 Y CN2207661 Y CN 2207661Y CN 94216169 CN94216169 CN 94216169 CN 94216169 U CN94216169 U CN 94216169U CN 2207661 Y CN2207661 Y CN 2207661Y
- Authority
- CN
- China
- Prior art keywords
- winding
- starter
- starting
- phase induction
- induction motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a starter on the shaft of a winding type three-phase induction motor, belonging to the technical field of the starting devices of the winding type three-phase induction motors. The utility model is used for replacing the present starting system which is composed of a collecting ring, an electric brush, an external starting rheostat and a starting control device. The starter is designed by utilizing a frequency-sensitive variable resistance principle, is arranged on the non-extended shaft end of the motor, and becomes integration with the motor. The utility model limits a starting current in the process of the starting of the motor. A starting force moment is increased. The starting characteristics of an approximate constant torque and a smooth raising speed process can be gained. The starter is used for dragging the starting of the various winding type three-phase induction motors with loads.
Description
The utility model belongs to a kind of winding-type three phase induction motor starting device field, be one and be loaded on winding-type three phase induction motor collector ring position and motor becomes one, be connected on the absence of collector starting device in the winding-type three phase induction motor rotor loop.
The winding-type three phase induction motor of existing industrial extensive use, rotor three-phase winding lead-out wire is received on the conducting rod of collector ring through hollow shaft, again via collector ring, brush, be connected to rotor external connection terminal, when motor starting, need external starting rheostat and start-control device, form winding-type three phase induction motor starting system, in order to the time restriction starting current that reaches motor starting, increase starting torque, satisfy the purpose of starting duty needs, but the collector ring on the Wound induction motor axle, brush heating easy to wear, maintenance capacity is big, reduced the motor reliability of operation, its external starting rheostat and control device are complicated simultaneously, and floor space is big, the cost height.
The utility model purpose is: starter on a kind of winding-type three phase induction motor axle is provided, at winding-type three phase induction motor starting time limit system starting current, increase starting torque, need only one-level change resistance just can get up the motor smooth start, external lead-out wire terminal of collector ring, brush, rotor and external starting rheostat on the winding-type three phase induction motor axle of the existing extensive use of cancellation, start-control device.
The purpose of this utility model is achieved in that starter on the winding-type three phase induction motor axle of being made up of the three-phase coil with adjustable number of turn, the yoke in adjustable magnetic circuit gap, iron core, inductance loop, be contained in the non-axle head collector ring position of stretching of motor, be connected with rotating shaft with key, become one with motor, motor rotor winding lead-out wire is connected with starter conducting rod on the winding-type three phase induction motor axle by the rotor hollow shaft.Starter is a king-sized reactor of core loss on the winding-type three phase induction motor axle, and it is serially connected in the rotor winding loop when motor starting, and its substitutional resistance becomes with the rotor current frequency change, is the one-level rheostat.Owing to adopt such scheme, starter is at winding-type three phase induction motor starting time limit system starting current on the winding-type three phase induction motor axle, increase starting torque, need only just can start the winding-type three phase induction motor by this one-level rheostat, it has replaced external lead-out wire terminal of collector ring, brush, rotor and external starting rheostat on the winding-type three phase induction motor axle, start-control device, and there are not the wearing and tearing parts, improved the motor operational reliability, take up an area of for a short time, cost is low.
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Figure one: for starting starter installation diagram on the winding-type three phase induction motor axle once in a while
Figure two: for starting starter structure chart on the winding-type three phase induction motor axle once in a while
Each part title is as follows among the figure:
1, iron core 2, outer yoke
3, interior yoke 4, three-phase coil
5, inductor 6, lead-out wires of coil
7, copper packing ring 8, insulating washer
9, terminal screw 10, conduction pavilion
11, clamp nut 12, insulation spacer
13, dead ring 14, the number of turn are regulated copper ring
15, rotor winding lead-out wire 16, yoke hold-down screw
17, rotor hollow shaft 18, snap ring
19, short-circuited conducting sleeve moving contact 20, short-circuited conducting sleeve
21, short-circuited conducting sleeve fixed contact 22, insulating sleeve
23, rotor winding 24, inductance loop hold-down screw
It in Fig. 1 the winding-type three phase induction motor of existing industrial extensive use, its collector ring, brush, the external leading-out terminal of rotor and external starting rheostat, start-control device are removed, and starter is contained in that motor is non-to be stretched on the axle head collector ring position on the whole winding-type three phase induction motor axle.The winding lead-out wire (15) of rotor winding (23) is connected by starter conduction pavilion (10) on roller hollow shaft (17) and the winding-type three phase induction motor axle, and short-circuited conducting sleeve fixed contact (21) position of starter is corresponding on the short-circuited conducting sleeve moving contact (19) on the winding-type three phase induction motor short-circuited conducting sleeve (20) and the winding-type three phase induction motor axle.Its outer winding of the iron core (1) of starter on the winding-type three phase induction motor axle with three-phase coil (4), iron core (1) inside dimension is consistent with substituted collector ring inside dimension, match with motor rotor hollow shaft (17), be integral with motor with the key connection.Iron core (1) is made with ordinary steel, the magnetic circuit sectional dimension is selected by winding-type threephase motor capacity and start mode, start starter on the winding-type three phase induction motor axle once in a while, keep motor short circuit ring (20), need behind the motor starting starter short-circuited conducting sleeve fixed contact (21) on the short-circuited conducting sleeve moving contact (19) of short-circuited conducting sleeve (20) and the winding-type three phase induction motor axle is closed.Starter does not have short-circuited conducting sleeve (20) and moving contact (19) fixed contact (21) thereof on the Fraquent start winding-type three phase induction motor axle, and the starter three-phase coil inserts in the moving rotor loop of Wound induction for a long time on the winding-type three phase induction motor axle.
Snap ring in Fig. 2 (18) act as that starter blocks on the winding-type three phase induction motor axle, prevent axial motion, conduction pavilion (10) overcoat is with insulating sleeve (22), clamp nut (11) underlay holds pad with dead ring (13) with insulation spacer (12) in addition, rotor winding lead-out wire (15) is connected on the conduction pavilion (10), the three-phase coil of the adjustable number of turn (4) its origin or beginning outside iron core (1) is connected with each conducting rod (10) mutually respectively, every phase coil is drawn four taps by the number of turn, pick out 12 of four lead-out wires of coil (6) three-phase meters, be connected to respectively on 12 terminal screws (9) that are fixed on the dead ring (13), copper packing ring (7) is every have mutually a pair of, be contained on the terminal screw (9) of the required tap number of turn, insulating washer (8) is every three pairs mutually, being contained in does not in addition need on the terminal screw (9) of the tap number of turn, regulate copper ring (14) by the number of turn and use the number of turn to be fixed, and three-phase coil (4) is connected into star by the nut of terminal screw (9) by regulating.The two yarn bag coat of paint copper cash coilings of three-phase coil (4), wherein direction is opposite mutually with both sides for winding direction, is lined with slot liner and layer insulation, and it twines number of turn and conductor cross-section is selected by rotor electric current, start mode; Every phase tapping ratio is 100%; 85%; 70%; 50% 4.The adjustable magnetic circuit gap yoke of starter on the winding-type three phase induction motor axle, be interior yoke (3) and the double-deck yoke of outer yoke (2), interior yoke (3) is levelling magnetic circuit gap yoke, outer yoke (2) is main yoke, other is furnished with aluminum inductance loop (5) and is loaded between coil (4) and the outer yoke (2), for the usefulness of regulating starting characteristic, the interior yoke of outer yoke (2) (3) is fixed on the iron core (1) by yoke hold-down screw (16), and inductance loop (5) is fixed on the outer yoke (2) with inductance loop hold-down screw (24).Yoke, inductance loop size match with core dimensions, press capacity motor, and start mode is selected.
Starter using method on the utility model winding-type three phase induction motor axle; Collector ring, brush and corresponding device thereof, the external connection terminal of existing general winding-type three phase induction motor are removed, dress with starter on the winding-type three phase induction motor axle that is complementary with the motor capacity rotor current in former collector ring position, with key starter on the winding-type three phase induction motor axle is connected with rotating shaft, be fixed with snap ring (18), rotor winding lead-out wire (15) is connected to respectively on the conducting rod (10) of starter on the winding-type three phase induction motor axle, and the number of turn is regulated copper ring (14) and fixed by the required number of turn.In use as dislike starting current excessive, start too fast, can be by regulating the adjustment increase number of turn of copper ring (14), copper packing ring (7), insulating washer (8); The effect that increases the number of turn is that starting current reduces, and starting torque reduces simultaneously; Otherwise the effect that the number of turn reduces is a starting current to be increased, and starting torque increases simultaneously; If dislike starting torque big when just starting, machinery has impact, and stabilized (steady-state) speed disliked low again after starting finished.Can take off interior yoke (3) to increase the magnetic circuit gap, its effect is that starting current slightly increases, and moment increased when starting finished, and stabilized (steady-state) speed is improved.Reasonably regulate the number of turn, magnetic gap can obtain starting characteristic and speedup process preferably stably, with the requirement of the different starting characteristics that satisfy all kinds of loads.
Another example of the utility model can supporting manufacturing when the winding-type three phase induction motor is made, it is contained in the non-axle head of stretching, do not assemble collector ring brush external connection one covering device, make it to become winding-type three phase induction motor, when using motor, do not need other cartridge rotor starting device from go up starter for axle.
Claims (4)
1, starter on a kind of winding-type three phase induction motor axle, it is characterized in that: go up starter by the axle that the three-phase coil with adjustable number of turn, the yoke in adjustable magnetic circuit gap, iron core, inductance loop are formed, be contained in the non-axle head collector ring position of stretching of motor, be connected with rotating shaft with key, become one with motor, motor rotor winding lead-out wire is gone up the starter conducting rod by rotor hollow shaft and axle and is connected.
2, starter on the winding-type three phase induction motor axle according to claim 1 is characterized in that: its outer winding with three-phase coil of iron core, the core interior size is consistent with substituted collector ring inside dimension, matches with the motor rotor hollow shaft.
3, starter on the winding-type three phase induction motor axle according to claim 1, it is characterized in that: the three-phase coil of the adjustable number of turn is outside iron core, its origin or beginning is connected with each conducting rod mutually respectively, every phase coil is drawn four taps by the number of turn, be connected to respectively on the lead-out wire attachment screw, regulate copper ring by the number of turn and regulate the use number of turn and three-phase coil is connected into star.
4, starter on the winding-type three phase induction motor axle according to claim 1, it is characterized in that: the yoke in adjustable magnetic circuit gap is inside and outside two-layer yoke, interior yoke is for adjusting magnetic circuit gap yoke, and outer yoke is main yoke, and other has the usefulness that the aluminum inductance loop makes to regulate starting characteristic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216169 CN2207661Y (en) | 1994-06-29 | 1994-06-29 | Starter on the shaft of winding 3-phase induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216169 CN2207661Y (en) | 1994-06-29 | 1994-06-29 | Starter on the shaft of winding 3-phase induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207661Y true CN2207661Y (en) | 1995-09-13 |
Family
ID=33831945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94216169 Expired - Fee Related CN2207661Y (en) | 1994-06-29 | 1994-06-29 | Starter on the shaft of winding 3-phase induction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207661Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986519A (en) * | 2010-06-30 | 2011-03-16 | 苏州贝得科技有限公司 | Wiring terminal of motor for closed type refrigeration compressor |
-
1994
- 1994-06-29 CN CN 94216169 patent/CN2207661Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986519A (en) * | 2010-06-30 | 2011-03-16 | 苏州贝得科技有限公司 | Wiring terminal of motor for closed type refrigeration compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |