CN201075785Y - Coupling type motor power collector - Google Patents
Coupling type motor power collector Download PDFInfo
- Publication number
- CN201075785Y CN201075785Y CNU2007201019227U CN200720101922U CN201075785Y CN 201075785 Y CN201075785 Y CN 201075785Y CN U2007201019227 U CNU2007201019227 U CN U2007201019227U CN 200720101922 U CN200720101922 U CN 200720101922U CN 201075785 Y CN201075785 Y CN 201075785Y
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- China
- Prior art keywords
- shaft
- flange
- transmission shaft
- collector
- power transmission
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- Expired - Lifetime
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Abstract
A shaft joint type current collecting device for an electromotor is used for solving the problems that collecting rings and an electric brush are easy to be abraded and quivered and the service life is short. The technical proposal is as follows: the device consists of a shaft joint and a current collector, the shaft joint comprises a drive flange and a driven flange, the current collector comprises a transmission shaft, the collecting rings and the electric brush, the current collector is arranged inside a device box; the drive flange is arranged at an unloading end of a principal shaft of the electromotor, the driven flange is connected with the transmission shaft of the current collector, the drive flange is connected with the driven flange by a screw; the collecting rings are evenly distributed on the transmission shaft, two ends of the transmission shaft are supported by a bearing, the shaft diameter of the transmission shaft is less than that of the principal shaft of the electromotor, lead wires of a rotor winding are respectively and electrically connected with the collecting rings which are contacted with the matched electric brush. The diameter of each collecting ring of the utility model is not limited by the size of the principal shaft of the electromotor and the structure of the collecting ring is more reasonable. The utility model has the characteristics of no quivering, low linear velocity, long service life of the electric brush and no striking fire.
Description
Technical field
The utility model relates to the current collecting equipment that realization is electrically connected between a kind of Wound induction motor and interior feedback adjustable-speed motor rotor winding and the control device, belongs to the motor technology field.
Background technology
Current collecting equipment is the essential equipment that is electrically connected between the motor rotor winding of rotation and the electric supply installation of outer, stationary, and mainly there are following two shortcomings in traditional current collecting equipment:
1, this device is installed in the unsupported end of motor main shaft, only depends on single-ended supporting to form cantilever design.The uneven torque of motor when starting and switch easily makes current collecting equipment produce radial wobble, causes then gently that wear of brush is uneven to shorten brush useful life; Heavy then cause between collector ring and brush because of the loose contact sparking, ablation collector ring surface, even damage current collecting equipment.
2, because collector ring is installed on the motor main shaft, and its external diameter is subjected to the restriction of motor main shaft diameter, and size is bigger, and linear velocity is higher, and brush mechanical wear is serious, the life-span reduces.
The above-mentioned defective of tradition current collecting equipment also has influence on the motor reliability of operation, has increased maintenance and maintenance amount, and the application of winding-type motor is restricted, and performance advantage can not be given full play to.
Summary of the invention
Technical problem to be solved in the utility model is the above-mentioned deficiency that overcomes the conventional motors current collecting equipment, a kind of low linear speed, non-jitter be provided, do not strike sparks, the long-life, can reduce and safeguard and the maintenance amount, improve the coupling type motor current collecting equipment of the motor operational reliability that matches with it.
The technical scheme that addresses the above problem is:
A kind of coupling type motor current collecting equipment, it is made up of shaft coupling and current-collector, and shaft coupling comprises initiatively flange and driven flange, and current-collector comprises power transmission shaft, collector ring and brush, and current-collector is installed in the cabinet; Described active flange is installed in the unsupported end of motor main shaft, and driven flange is connected with the power transmission shaft of current-collector, initiatively is bound up by screw rod between flange and the driven flange; Described collector ring is distributed on the power transmission shaft, and support with bearing at the two ends of power transmission shaft, and its diameter of axle is less than the diameter of axle of motor main shaft, and the lead-in wire of described rotor winding is electrically connected with each collector ring respectively, and collector ring touches with the brush that matches is in the same place.
Above-mentioned coupling type motor current collecting equipment is installed insulator on the end face of described active flange, and rotor leading wire is connected on the insulator by its hollow shaft; Described power transmission shaft is provided with hollow cavity near motor one end, and the lead-in wire on the insulator is connected on each collector ring by hollow cavity.
Above-mentioned coupling type motor current collecting equipment is equipped with cooling blower on the described cabinet.
Above-mentioned coupling type motor current collecting equipment, described collector ring is the dicyclo parallel-connection structure.
Above-mentioned coupling type motor current collecting equipment installs rubber cushion cover additional on the screw rod of described connection active flange and driven flange.
Above-mentioned coupling type motor current collecting equipment is provided with insulating barrier between described collector ring and the power transmission shaft.
The utility model is with the original current collecting equipment cancellation on the wound-rotor asynchronous machine, new current-collector is not mounted within the motor, but be independent of outside the main frame, connection by shaft coupling, current-collector and motor are rotated synchronously, and motor rotor lead-in wire and collector-ring lead are connected on the insulator along power transmission shaft, realize being electrically connected, therefore, the operation of motor can not be affected.Simultaneously, after current-collector was independently gone out, the diameter of its collector ring just no longer was subjected to the restriction of motor main shaft size, thereby can make structure more become reasonable according to the structural parameters of optimized operation effect design current-collector.The utlity model has non-jitter, characteristics such as linear velocity is low, brush life is long, do not strike sparks can obviously reduce the maintenance of current collecting equipment, improve operational reliability.Except that being applied to coiling electric motor and interior feedback buncher, its structural principle also may be used on going in the similar applications such as excitation of synchronous generator.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is for adopting the structural representation of dicyclo current-collector.
Number in the figure is as follows: active flange 1, driven flange 2, power transmission shaft 3, bearing 4, collector ring 5, insulating barrier 6, cooling blower 7, brush 8, bearing 9, cabinet 10, collector-ring lead 11, insulator 12, rotor leading wire 13, motor 14, coupling type motor current collecting equipment 15.
Embodiment
As we can see from the figure, this coupling type motor current collecting equipment 15 is made up of shaft coupling and current-collector.
Shaft coupling comprises initiatively flange 1, driven flange 2.Motor 14 is realized and being connected of current-collector by shaft coupling, wherein, initiatively flange 1 is installed in the unsupported end of motor main shaft, driven flange 2 is connected with the power transmission shaft 3 of current-collector, initiatively flange 1 and driven flange 2 are connected by screw rod, install the slight impact that rubber cushion cover brings with the absorption extraneous factor and the departure of axiality simultaneously on the face of being rigidly connected additional.Initiatively on the end face of flange 1 insulator 12 is installed, is used to connect motor rotor lead-in wire 13, motor rotor lead-in wire 13 is connected on the insulator 12 by its hollow shaft.
Current-collector is by formations such as power transmission shaft 3, collector ring 5, brush 8 (comprising collector plate, brush and brush carrier), bearing 4, bearing 9 and cabinets 10.The collector ring 5 of current-collector is distributed on the power transmission shaft 3, for fear of electric leakage or short circuit, is separated with insulating barrier 6 between collector ring 5 and the power transmission shaft 3, and its voltage withstand class, the class of insulation and mechanical strength are determined according to concrete operating mode.Collector-ring lead 11 adopts cable to draw, and its sectional area is determined according to rated current.Power transmission shaft 3 to the outer connection part hollow cavity draw, be connected on the insulator 12 so that each phase cable of collector ring 5 passes it.Power transmission shaft 3 and contained collector ring 5 thereof are by bearings at both ends 4,9 supportings.The collector ring of conventional motors is installed on the motor main shaft, and its external diameter is subjected to the restriction of motor main shaft diameter, and size is bigger, and linear velocity is higher, and brush mechanical wear is serious, brings disaster to useful life.The diameter of axle of the power transmission shaft of the utility model installation collector ring has reduced collector ring 5 linear velocities less than the diameter of axle of motor main shaft, and its external diameter design is a principle at utmost to reduce the collector ring linear velocity.
Fig. 2 shows, in order to solve that the collector ring diameter reduces and the excessive and heating problem of brush cornerite that produces, for the bigger motor of rated current, the utility model can also adopt the collector ring and the brush of dicyclo parallel connection, be that each phase collector ring is made of two collector ring parallel connections, arrange vertically, 8 of brushes are distributed on two collector rings 5.
Current-collector of the present utility model is installed in the cabinet 10, adopts outer 7 pairs of collector rings of attached cooling blower and brush to carry out forced air cooling simultaneously, in order to heat radiation.
Claims (6)
1. coupling type motor current collecting equipment, it is characterized in that: it is made up of shaft coupling and current-collector, and shaft coupling comprises initiatively flange [1] and driven flange [2], and current-collector comprises power transmission shaft [3], collector ring [5] and brush [8], and current-collector is installed in the cabinet; Described active flange is installed in the unsupported end of motor main shaft, and driven flange [2] is connected with the power transmission shaft [3] of current-collector, initiatively is bound up by screw rod between flange and the driven flange; Described collector ring [5] is distributed on the power transmission shaft [3], and support with bearing at the two ends of power transmission shaft, and its diameter of axle is less than the diameter of axle of motor main shaft, and the lead-in wire of described rotor winding is electrically connected with each collector ring respectively, and collector ring touches with the brush that matches is in the same place.
2. coupling type motor current collecting equipment according to claim 1 is characterized in that: insulator [12] is installed on the end face of described active flange [1], and rotor leading wire [13] is connected on the insulator by its hollow shaft; Described power transmission shaft is provided with hollow cavity near motor one end, and the lead-in wire on the insulator is connected on each collector ring by hollow cavity.
3. coupling type motor current collecting equipment according to claim 2 is characterized in that: cooling blower [7] is housed on the described cabinet [10].
4. according to claim 1,2 or 3 described coupling type motor current collecting equipments, it is characterized in that: described collector ring [5] is the dicyclo parallel-connection structure.
5. coupling type motor current collecting equipment according to claim 4 is characterized in that: install rubber cushion cover additional on the screw rod of connection active flange and driven flange.
6. coupling type motor current collecting equipment according to claim 5 is characterized in that: be separated with insulating barrier [6] between described collector ring [5] and the power transmission shaft [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201019227U CN201075785Y (en) | 2007-07-13 | 2007-07-13 | Coupling type motor power collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201019227U CN201075785Y (en) | 2007-07-13 | 2007-07-13 | Coupling type motor power collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075785Y true CN201075785Y (en) | 2008-06-18 |
Family
ID=39521042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201019227U Expired - Lifetime CN201075785Y (en) | 2007-07-13 | 2007-07-13 | Coupling type motor power collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075785Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048718A (en) * | 2015-08-20 | 2015-11-11 | 中电电机股份有限公司 | Cooling structure for external blowing slip ring |
| CN105162290A (en) * | 2015-10-26 | 2015-12-16 | 东方电气集团东方电机有限公司 | Current collecting device for motor |
| CN107976628A (en) * | 2017-11-22 | 2018-05-01 | 三集团有限公司北京分公司 | Collector ring experimental rig, collector ring pilot system and test method |
| CN110095365A (en) * | 2019-03-13 | 2019-08-06 | 三峡大学 | It is a kind of for simulating hydraulic turbine carbon brush-collector ring current-carrying frictional wear testing machine |
-
2007
- 2007-07-13 CN CNU2007201019227U patent/CN201075785Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048718A (en) * | 2015-08-20 | 2015-11-11 | 中电电机股份有限公司 | Cooling structure for external blowing slip ring |
| CN105162290A (en) * | 2015-10-26 | 2015-12-16 | 东方电气集团东方电机有限公司 | Current collecting device for motor |
| CN107976628A (en) * | 2017-11-22 | 2018-05-01 | 三集团有限公司北京分公司 | Collector ring experimental rig, collector ring pilot system and test method |
| CN110095365A (en) * | 2019-03-13 | 2019-08-06 | 三峡大学 | It is a kind of for simulating hydraulic turbine carbon brush-collector ring current-carrying frictional wear testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070713 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |