CN107317424A - A kind of high pressure composite anti-explosion type threephase asynchronous - Google Patents
A kind of high pressure composite anti-explosion type threephase asynchronous Download PDFInfo
- Publication number
- CN107317424A CN107317424A CN201710627726.1A CN201710627726A CN107317424A CN 107317424 A CN107317424 A CN 107317424A CN 201710627726 A CN201710627726 A CN 201710627726A CN 107317424 A CN107317424 A CN 107317424A
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- China
- Prior art keywords
- end cap
- cylinder
- explosion
- rotating shaft
- support
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of high pressure composite anti-explosion type threephase asynchronous, including support, rotating shaft and end cap, the explosion separation structure for preventing combustible dust from entering bearing chamber or motor internal is provided with the cooperation of the end cap and rotating shaft, explosion separation structure includes the fixed labyrinth seal set being set in rotating shaft, labyrinth seal set is coaxially disposed positioned at outside motor and with rotating shaft, and labyrinth seal set is made up of the baffle ring of radial direction and the cylinder of axial direction, the inner ring of baffle ring is fixedly connected with rotating shaft sealing, the outer ring of baffle ring is fixedly connected with the outer end seal of cylinder, the inner end of cylinder is vertically into extension at correspondence end cap and partial insertion to end cap, corresponding position on end cap with cylinder offers seal groove, the inner end of the cylinder is inserted in corresponding seal groove and coordinated with its gap.The present invention adds dust explosion protection measure on the basis of gas fire-proof motor, so as to meet dust explosion protection simultaneously and gas is explosion-proof.
Description
Technical field
The present invention relates to combustible dust and explosibility gaseous environment motor, more particularly to a kind of high pressure composite anti-explosion
Type threephase asynchronous.
Background technology
With the raising that the industries such as coal, oil, chemical industry, steel are required safety in production, to the requirement of explosion proof of equipment
Further improve and require.Composite anti-explosion requires high occasion（A21 areas IIC or A22 areas IIC）It is more and more, for can be at this
The device requirement amount for planting safe operation under the high environment of requirement of explosion proof is also more and more.Under the situation, active demand improves former
The gap design that the parts for having motor coordinate, develops composite anti-explosion motor.
It is not designed to effectively also meet in existing motor product in the occasion of composite anti-explosion, industry be by full
The motor of sufficient IIC gases requirement of explosion proof is substituted.The motor of replacement is designed in gap can not meet the requirement of dust explosion protection, not have
There are dust-proof effect, the especially position of bearings at motor two ends（Mainly axle insertion portion）, without any dust explosion protection measure, peace
Full hidden danger is larger.
Application number CN201110258159.X patent application discloses a kind of high-pressure explosion-proof type three-phase asynchronous, bag
Support cylinder, drive end bearing bracket, rear end cap, rotating shaft and bearing are included, high-voltage connecting line box bearing is provided with the support cylinder and auxiliary
Adjuvant grafting line box bearing, at the cooperation of the rotating shaft and drive end bearing bracket and rear end cap on the inside of be respectively equipped with internal bearing cover and match
Curved path ring, it is flat that the two, which is formed at bent road formula flameproof joint structure, the seam cooperation of the end ring and end cap of the support cylinder,
Face explosion separation structure, its flame proof 28~32mm of length, flame proof gap is 0.05~0.07mm.The present invention has actively beneficial effect
Really:2.0Mpa hydraulic pressure (blast) pressure can be born；Explosion-insulation surface is seldom, and essential flameproof joint will meet
Harsh flameproof gap requirement；The safe and reliable chemical industry for being applied to the huge gases of explosion energy such as hydrogen, acetylene of energy
Institute.But it does not still have dust explosion protection measure, potential safety hazard is larger.
The content of the invention
The present invention in order to solve the problems of the prior art there is provided a kind of high pressure composite anti-explosion type threephase asynchronous,
Dust explosion protection measure is added on the basis of gas fire-proof motor, so as to meet dust explosion protection simultaneously and gas is explosion-proof.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of high pressure composite anti-explosion type is phase asynchronous
Motor, including support and rotating shaft, are correspondingly provided with end cap in the front and back end of support respectively, are set at the cooperation of the end cap and rotating shaft
There is the explosion separation structure for preventing combustible dust from entering bearing chamber or motor internal, explosion separation structure includes fixation and is set in rotating shaft
Labyrinth seal set, labyrinth seal set positioned at outside motor and being coaxially disposed with rotating shaft, and labyrinth seal set by radial direction baffle ring and
The cylinder composition of axial direction, the inner ring of baffle ring is fixedly connected with rotating shaft sealing, and the outer ring of baffle ring and the outer end seal of cylinder are fixed
Connection, the inner end of cylinder is corresponding with cylinder on end cap vertically into extension at correspondence end cap and partial insertion to end cap
Position offers seal groove, and the inner end of the cylinder is inserted in corresponding seal groove and coordinated with its gap.
The inner circumferential of the cylinder and periphery are 0.05-0.1mm with the bilateral gap sum of corresponding seal groove.
It also includes terminal box, and terminal box is arranged at support line outlet, and at the cooperation of terminal box and support and end
Lid includes respectively at the cooperation of terminal box and support with being equipped with root sealer structure, root sealer structure at the cooperation of support
And the annular mounting groove set at the cooperation of end cap and support, sealing ring is arranged in annular mounting groove.
The cross section of the annular mounting groove is square.
The labyrinth seal set is made of copper.
The beneficial effects of the invention are as follows：
1st, the flame proof for preventing combustible dust from entering bearing chamber or motor internal is provided with the present invention at the cooperation of end cap and rotating shaft
Structure, is realized in the position of bearings at motor two ends（Mainly axle insertion portion）Dust explosion protection measure is added, can effectively prevent can
Combustion property dust enters bearing chamber and motor internal, realizes the closed protective to bearing, meets dust explosion protection requirement.
2. root sealer knot is equipped with the present invention at the cooperation of terminal box and support and at the cooperation of end cap and support
Structure, realization adds dust explosion protection measure at the cooperation of terminal box and support and at the cooperation of end cap and support, reaches dust
Explosive-proof protector.
3. the present invention adds dust explosion protection measure on the basis of gas fire-proof motor, so as to meet dust explosion protection simultaneously
Explosion-proof with gas, the motor may be used on the explosion-proof place of gas, dust class requirement.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the side view of the present invention；
Fig. 3 is the enlarged drawing at A in Fig. 1；
Fig. 4 is the enlarged drawing at B in Fig. 1；
Fig. 5 is the enlarged drawing at C in Fig. 1；
Fig. 6 is the enlarged drawing at D in Fig. 1；
Fig. 7 is the enlarged drawing at E in Fig. 2.
Embodiment
As shown in Figures 1 to 7, a kind of high pressure composite anti-explosion type threephase asynchronous of the invention, including support 2 and turn
Axle 1, end cap 3 is correspondingly provided with the front and back end of support 2 respectively, and the end cap 3 prevents flammable powder with being provided with the cooperation of rotating shaft 1
Dirt enters the explosion separation structure of bearing chamber or motor internal, and explosion separation structure includes the fixed labyrinth seal set 4 being set in rotating shaft 1,
Labyrinth seal set 4 is located at outside motor and is coaxially disposed with rotating shaft 1, and labyrinth seal set 4 is by the baffle ring of radial direction and the circle of axial direction
Cylinder composition, inner ring and the rotating shaft 1 of baffle ring are sealedly and fixedly connected, and the outer ring of baffle ring is fixedly connected with the outer end seal of cylinder, circle
Cylinder inner end vertically to correspondence end cap 3 at extension and partial insertion to end cap 3 in, with the corresponding position of cylinder on end cap 3
Offer seal groove 7, the inner end of the cylinder is inserted in corresponding seal groove 7 and coordinated with its gap, the inner circumferential of cylinder and
Periphery is 0.05-0.1mm with the bilateral gap sum of corresponding seal groove 7.
The design of above-mentioned flame proof knot, is realized in the position of bearings at motor two ends（Mainly axle insertion portion）Dust is added to prevent
Quick-fried measure, can effectively prevent combustible dust from entering bearing chamber and motor internal, realize the closed protective to bearing, meet dust
Requirement of explosion proof.
Present invention additionally comprises terminal box 6, terminal box 6 is arranged at support line outlet, and terminal box 6 and the cooperation of 2, machine
Place and end cap 3 with being equipped with root sealer structure at the cooperation of support 2, root sealer structure include respectively terminal box 6 with
Sealing is arranged in the annular mounting groove set at the cooperation of support 2 and at the cooperation of end cap 3 and support 2, annular mounting groove
Circle 5.
The design of above-mentioned root sealer structure, is realized at the cooperation of terminal box 6 and support 2 and end cap 3 and support 5
Dust explosion protection measure is added at cooperation, reaches that dust explosion protection is protected.
In the present embodiment, the cross section of the annular mounting groove is square.
In the present embodiment, the labyrinth seal set 4 is made of copper.
High pressure composite anti-explosion type threephase asynchronous in the present embodiment is in YB3-450 ExdIICT4Gb Motor Foundations
Upper to derive from, the motor adding dust explosion protection measure on the basis of gas fire-proof motor, thus meet simultaneously dust explosion protection and
Gas is explosion-proof, meets IIC flame proofs and ExtD A21 IP65 T130 DEG C dust explosion protection requirements, and the motor may be used on gas, powder
Dirt grade（ExdIICT4 Gb/ExtDA21IP65 T130 DEG C explosive-proof gradves）It is required that explosion-proof place, such as oil, chemical industry, coal
Charcoal is produced.
Above example is only used to illustrative and not limiting technical scheme, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that：Still the present invention can be modified or be waited
With replacement, any modification or partial replacement without departing from the spirit and scope of the present invention, it all should cover the power in the present invention
Among sharp claimed range.
Claims (5)
1. a kind of high pressure composite anti-explosion type threephase asynchronous, including support and rotating shaft, are corresponded to respectively in the front and back end of support
Provided with end cap, it is characterised in that：Being provided with the cooperation of the end cap and rotating shaft prevents combustible dust from entering bearing chamber or motor
Internal explosion separation structure, explosion separation structure includes the fixed labyrinth seal set being set in rotating shaft, and labyrinth seal set is located at outside motor
Portion is simultaneously coaxially disposed with rotating shaft, and labyrinth seal set is made up of the baffle ring of radial direction and the cylinder of axial direction, the inner ring of baffle ring and rotating shaft
It is sealedly and fixedly connected, the outer ring of baffle ring is fixedly connected with the outer end seal of cylinder, the inner end of cylinder is vertically to corresponding end
Extend at lid and in partial insertion to end cap, offer seal groove, the inner of the cylinder on end cap with the corresponding position of cylinder
Portion inserts in corresponding seal groove and coordinated with its gap.
2. high pressure composite anti-explosion type threephase asynchronous according to claim 1, it is characterised in that：The cylinder it is interior
Week and periphery are 0.05-0.1mm with the bilateral gap sum of corresponding seal groove.
3. high pressure composite anti-explosion type threephase asynchronous according to claim 1 or 2, it is characterised in that：It also includes
Terminal box, terminal box is arranged at support line outlet, and at the cooperation of terminal box and support and at the cooperation of end cap and support
It is equipped with root sealer structure, root sealer structure is included respectively at the cooperation of terminal box and support and end cap and support
Sealing ring is arranged in the annular mounting groove set at cooperation, annular mounting groove.
4. high pressure composite anti-explosion type threephase asynchronous according to claim 3, it is characterised in that：The annular is installed
The cross section of groove is square.
5. high pressure composite anti-explosion type threephase asynchronous according to claim 1, it is characterised in that：The labyrinth seal
Set is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627726.1A CN107317424A (en) | 2017-07-28 | 2017-07-28 | A kind of high pressure composite anti-explosion type threephase asynchronous |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627726.1A CN107317424A (en) | 2017-07-28 | 2017-07-28 | A kind of high pressure composite anti-explosion type threephase asynchronous |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107317424A true CN107317424A (en) | 2017-11-03 |
Family
ID=60171479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710627726.1A Pending CN107317424A (en) | 2017-07-28 | 2017-07-28 | A kind of high pressure composite anti-explosion type threephase asynchronous |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107317424A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088500A (en) * | 2018-09-12 | 2018-12-25 | 珠海格力电器股份有限公司 | A kind of motor protection structure, motor, air-conditioning and installation method |
| CN110011463A (en) * | 2019-05-16 | 2019-07-12 | 深圳南方德尔汽车电子有限公司 | Fuel pump motor string-passing structure |
| CN113565882A (en) * | 2021-07-30 | 2021-10-29 | 北京曙光航空电气有限责任公司 | Front end cover sealing structure for preventing oil leakage of high-speed generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201854123U (en) * | 2010-07-26 | 2011-06-01 | 宁夏西北骏马电机制造股份有限公司 | Oil-leakage prevention mechanical seal for bearing of explosion-proof motor |
| CN102290941A (en) * | 2011-09-02 | 2011-12-21 | 南阳防爆集团股份有限公司 | High-pressure explosion-proof type three-phase asynchronous motor |
| CN102361383A (en) * | 2011-10-31 | 2012-02-22 | 南阳防爆集团股份有限公司 | Explosion-proof type ultrahigh-efficiency cast copper rotor three-phase asynchronous motor |
| CN205092695U (en) * | 2015-10-30 | 2016-03-16 | 卧龙电气南阳防爆集团股份有限公司 | Dust exposion prevention motor seal structure |
| CN106787384A (en) * | 2016-12-20 | 2017-05-31 | 卧龙电气集团股份有限公司 | A kind of dusty gas composite anti-explosion motor |
| CN207082942U (en) * | 2017-07-28 | 2018-03-09 | 卧龙电气集团股份有限公司 | A kind of high pressure composite anti-explosion type threephase asynchronous |
-
2017
- 2017-07-28 CN CN201710627726.1A patent/CN107317424A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201854123U (en) * | 2010-07-26 | 2011-06-01 | 宁夏西北骏马电机制造股份有限公司 | Oil-leakage prevention mechanical seal for bearing of explosion-proof motor |
| CN102290941A (en) * | 2011-09-02 | 2011-12-21 | 南阳防爆集团股份有限公司 | High-pressure explosion-proof type three-phase asynchronous motor |
| CN102361383A (en) * | 2011-10-31 | 2012-02-22 | 南阳防爆集团股份有限公司 | Explosion-proof type ultrahigh-efficiency cast copper rotor three-phase asynchronous motor |
| CN205092695U (en) * | 2015-10-30 | 2016-03-16 | 卧龙电气南阳防爆集团股份有限公司 | Dust exposion prevention motor seal structure |
| CN106787384A (en) * | 2016-12-20 | 2017-05-31 | 卧龙电气集团股份有限公司 | A kind of dusty gas composite anti-explosion motor |
| CN207082942U (en) * | 2017-07-28 | 2018-03-09 | 卧龙电气集团股份有限公司 | A kind of high pressure composite anti-explosion type threephase asynchronous |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088500A (en) * | 2018-09-12 | 2018-12-25 | 珠海格力电器股份有限公司 | A kind of motor protection structure, motor, air-conditioning and installation method |
| CN109088500B (en) * | 2018-09-12 | 2023-11-07 | 珠海格力电器股份有限公司 | Motor protection structure, motor, air conditioner and installation method |
| CN110011463A (en) * | 2019-05-16 | 2019-07-12 | 深圳南方德尔汽车电子有限公司 | Fuel pump motor string-passing structure |
| CN110011463B (en) * | 2019-05-16 | 2024-04-02 | 深圳南方德尔汽车电子有限公司 | Wire passing structure of fuel pump motor |
| CN113565882A (en) * | 2021-07-30 | 2021-10-29 | 北京曙光航空电气有限责任公司 | Front end cover sealing structure for preventing oil leakage of high-speed generator |
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