CN205092673U - Main helium fan drive electric motor rotor structure - Google Patents

Main helium fan drive electric motor rotor structure Download PDF

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Publication number
CN205092673U
CN205092673U CN201520938380.3U CN201520938380U CN205092673U CN 205092673 U CN205092673 U CN 205092673U CN 201520938380 U CN201520938380 U CN 201520938380U CN 205092673 U CN205092673 U CN 205092673U
Authority
CN
China
Prior art keywords
retaining ring
ring
rotor
fan drive
helium fan
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
Application number
CN201520938380.3U
Other languages
Chinese (zh)
Inventor
戈宝军
张巍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN201520938380.3U priority Critical patent/CN205092673U/en
Application granted granted Critical
Publication of CN205092673U publication Critical patent/CN205092673U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a main helium fan drive electric motor rotor structure, belongs to electric motor rotor technical field. The utility model discloses a to solve present ordinary electric motor rotor tip intensity low, heat dissipation, ventilating and cooling effect are poor, can not satisfy the operating mode requirement scheduling problem of motor in high temperature gas cooled core power station. The utility model discloses a retaining ring, end links, clamping ring, rotor punching, copper bar, balancing disk and pivot, the retaining ring for taking notched disc construction, the retaining ring adopts interference fit to be connected with the pivot, the interior interference of recess of retaining ring is connected with the end links, the end links is connected for cockscomb structure connection structure with the retaining ring, installs the clamping ring between rotor punching and the end links, the balancing disk install on the wall of the right side of retaining ring. The utility model discloses compact structure has satisfied the cooling requirement to the cooling effect is good, and the motor is difficult for breaking down, has avoided motor inner structure to damage, has prolonged the life of motor, has reduced economic loss.

Description

A kind of Helium fan drive motors rotor structure
Technical field
The utility model relates to a kind of Helium fan drive motors rotor structure, belongs to motor rotor construction technical field.
Background technology
The function of Helium fan is equivalent to " main pump " of pressurized-water reactor nuclear power plant.At work, helium is pressurized to as cooling agent after 70 atmospheric pressure by Helium fan, and taken away by the heat that reactor core produces, helium flow is through steam generator subsequently, again returns reactor core after pressurization, thus realizes energy exchange, at present, the rotor terminal structure of existing common vertical machine can not meet power 4500KW, the working condition requirement of rotating speed 4000r/min in HTGR Nuclear Power Plant, the blower fan chamber of motor and motor cavity communicate, the temperature in blower fan chamber is 250 DEG C, common electric machine cannot use under the operating mode of this temperature, draught fan impeller is directly connected with axle, the thermal power of being conducted by axle is higher, and now, rotor tip does not ventilate, cooling device, so just because of non-homogeneous expansion that rotor local temperature difference causes, local stress is excessive, in addition, rotor tip intensity is low, copper bar has local to be unsettled between end ring and rotor pressing ring, motor easily breaks down, internal structure of motor is made to cause damage, affect the useful life of motor, nuclear reactor unplanned shutdown number of times is caused to increase, cause huge economic loss.
Utility model content
The purpose of this utility model is low in order to solve existing common electric machine rotor tip intensity, heat radiation, ventilating and cooling weak effect, can not meet the problems such as the working condition requirement of motor in HTGR Nuclear Power Plant, and then a kind of Helium fan drive motors rotor structure is provided.
The technical solution of the utility model:
A kind of Helium fan drive motors rotor structure comprises retaining ring, end ring, trim ring, rotor punching, copper bar, balancing frame and rotating shaft, described retaining ring is the reeded disc-shaped structure of band, retaining ring adopts interference fit to be connected with rotating shaft, in the groove of retaining ring, interference is connected with end ring, the two ends, left and right of end ring are connected with retaining ring and trim ring respectively by projection, the connection of end ring and retaining ring is Sawtooth connection structure, be provided with trim ring between rotor punching and end ring, described balancing frame is arranged on the right side wall of retaining ring.
Preferred: described rotor punching is arranged in rotating shaft, on rotor punching, annular array has some installing holes, and copper bar is inserted in installing hole.
Preferred: the shape of described installing hole is Long Circle installing hole.
Preferred: described rotor punching body axially offer vent passages.
Preferred: described retaining ring offers radial air openings.
Preferred: described trim ring is the disc structure with boss, is provided with groove between boss and the outer disc of trim ring, and on outer disc, uniform array has slotted hole, the boss of trim ring is provided with ventilation gap.
The utility model has following beneficial effect: a kind of Helium fan drive motors rotor structure of the present utility model, structure is simple, reasonable in design, in order to increase rotor tip intensity, copper bar between end ring and trim ring is all protected with retaining ring, guarantee does not have Hanging sectionally, avoid the stress raisers of copper bar, retaining ring and axle adopt interference fit to fix, rotor end ring, copper bar adopts the fine copper of low-resistivity, retaining ring, rotor pressing ring adopts austenitic alloy steel to process, decrease caloric value during operation, enhance shaft end cooling, add refrigerating gas circulation, meet cooling requirement, and good cooling results, such motor not easily breaks down, avoid internal structure of motor to damage, extend the useful life of motor, decrease economic loss.
Accompanying drawing explanation
Fig. 1 is a kind of Helium fan drive motors rotor structure installation diagram;
Fig. 2 is retaining ring structure figure;
Fig. 3 is ring pressing construction figure;
1-retaining ring in figure, 2-end ring, 3-trim ring, 4-rotor punching, 5-copper bar, 6-balancing frame, 7-rotating shaft, 8-installing hole, 9-vent passages, 10-ventilation hole, 11-boss, 12-outer disc, 13-ventilation gap, 14-is protruding.
Embodiment
Embodiment one: composition graphs 1 to Fig. 3 illustrates present embodiment, a kind of Helium fan drive motors rotor structure of present embodiment comprises retaining ring 1, end ring 2, trim ring 3, rotor punching 4, copper bar 5, balancing frame 6 and rotating shaft 7, described retaining ring 1 is the reeded disc-shaped structure of band, retaining ring 1 adopts interference fit to be connected with rotating shaft 7, in the groove of retaining ring 1, interference is connected with end ring 2, the two ends, left and right of end ring 2 are connected with retaining ring 1 and trim ring 3 respectively by protruding 14, end ring 2 is Sawtooth connection structure with the connection of retaining ring 1, trim ring 3 is installed between rotor punching 4 and end ring 2, described balancing frame 6 is arranged on the right side wall of retaining ring 1, described rotor punching 4 is arranged in rotating shaft 7, and on rotor punching 4, annular array has some installing holes 8, and copper bar 5 is arranged in installing hole 8, the shape of described installing hole 8 is Long Circle installing hole, described rotor punching 4 body axially offer vent passages 9, described retaining ring 1 offers radial air openings 10, setting like this, this structure is the end construction of rotor, Fig. 1 is the partial schematic diagram of rotor terminal structure, the retaining ring 1 of figure rotor end is provided with ventilation hole 10, retaining ring and end ring 2 adopt zigzag or the turriform way of contact, and its contact closely, avoids the non-homogeneous expansion that causes because of local temperature difference in motor operation course and changes the structure of end ring 2, cause local stress excessive, end ring torsional deformation, rotor punching 4 has installing hole 8, and copper bar is arranged in installing hole 8, copper bar 5 have position support be arranged between end ring and rotor pressing ring, avoid copper bar 5 unsettled, the phenomenon that motor operation course is thrown out of, ensure that electrical fault rate is low, enhances motor useful life, ventilation hole 10 on the vent passages 9 that rotor punching 4 is provided with, ventilation gap 13 and retaining ring 1 constitutes ventilating system, effectively avoids the accumulation of local temperature.
Embodiment two: composition graphs 3 illustrates present embodiment, the trim ring 3 described in a kind of Helium fan drive motors rotor structure of present embodiment is the disc structure with boss 11, groove is provided with between the outer disc 12 of boss 11 and trim ring 3, on outer disc 12, uniform array has slotted hole, and the boss 11 of trim ring 3 is provided with ventilation gap 13.Setting like this, the trim ring 3 of axle stretch end has evenly offered out radial ventilation gap 13, solves the problem of heat radiation, ventilating and cooling weak effect like this.
The exemplary illustration of present embodiment just to this patent, does not limit its protection range, and those skilled in the art can also change, as long as no the Spirit Essence exceeding this patent, in the protection range of this patent its local.

Claims (6)

1. a Helium fan drive motors rotor structure, comprise retaining ring (1), end ring (2), trim ring (3), rotor punching (4), copper bar (5), balancing frame (6) and rotating shaft (7), it is characterized in that: described retaining ring (1) is the reeded disc-shaped structure of band, retaining ring (1) adopts interference fit to be connected with rotating shaft (7), in the groove of retaining ring (1), interference is connected with end ring (2), the two ends, left and right of end ring (2) are connected with retaining ring (1) and trim ring (3) respectively by protruding (14), end ring (2) is Sawtooth connection structure with the connection of retaining ring (1), trim ring (3) is installed between rotor punching (4) and end ring (2), described balancing frame (6) is arranged on the right side wall of retaining ring (1).
2. a kind of Helium fan drive motors rotor structure according to claim 1, it is characterized in that: described rotor punching (4) is arranged in rotating shaft (7), the upper annular array of rotor punching (4) has some installing holes (8), and copper bar (5) is inserted in installing hole (8).
3. a kind of Helium fan drive motors rotor structure according to claim 2, is characterized in that: the shape of described installing hole (8) is Long Circle installing hole.
4. a kind of Helium fan drive motors rotor structure according to claim 1, is characterized in that: described rotor punching (4) body axially offer vent passages (9).
5. a kind of Helium fan drive motors rotor structure according to claim 1, is characterized in that: described retaining ring (1) offers radial air openings (10).
6. a kind of Helium fan drive motors rotor structure according to claim 1, it is characterized in that: described trim ring (3) is the disc structure with boss (11), groove is provided with between the outer disc (12) of boss (11) and trim ring (3), the upper uniform array of outer disc (12) has slotted hole, and the boss (11) of trim ring (3) is provided with ventilation gap (13).
CN201520938380.3U 2015-11-19 2015-11-19 Main helium fan drive electric motor rotor structure Expired - Fee Related CN205092673U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520938380.3U CN205092673U (en) 2015-11-19 2015-11-19 Main helium fan drive electric motor rotor structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520938380.3U CN205092673U (en) 2015-11-19 2015-11-19 Main helium fan drive electric motor rotor structure

Publications (1)

Publication Number Publication Date
CN205092673U true CN205092673U (en) 2016-03-16

Family

ID=55483325

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520938380.3U Expired - Fee Related CN205092673U (en) 2015-11-19 2015-11-19 Main helium fan drive electric motor rotor structure

Country Status (1)

Country Link
CN (1) CN205092673U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107086743A (en) * 2017-05-22 2017-08-22 哈尔滨电气动力装备有限公司 HTGR nuclear power factory owner's cooling blower motor of oil lubrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107086743A (en) * 2017-05-22 2017-08-22 哈尔滨电气动力装备有限公司 HTGR nuclear power factory owner's cooling blower motor of oil lubrication

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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: 20160316

Termination date: 20161119