CN201238249Y - Explosion-proof low-voltage anti-burst electric motor - Google Patents
Explosion-proof low-voltage anti-burst electric motor Download PDFInfo
- Publication number
- CN201238249Y CN201238249Y CNU2008201479812U CN200820147981U CN201238249Y CN 201238249 Y CN201238249 Y CN 201238249Y CN U2008201479812 U CNU2008201479812 U CN U2008201479812U CN 200820147981 U CN200820147981 U CN 200820147981U CN 201238249 Y CN201238249 Y CN 201238249Y
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- explosion
- exciter
- voltage
- main generator
- support
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Abstract
The utility model relates to an explosion-proof low-voltage anti-explosion generator, which is mainly characterized in that an AC magnetizing exciter and a permanent-magnetism auxiliary exciter are arranged inside the cavity of a main generator stand; a main generator is provided with a stator that is assembled and connected with the stand in a split way and a rotor rotation shaft that is connected with the stand in a supporting way through an end cover bearing, and an inner cooling fan, a main generator rotor, an exciting generator, a rotation rectifying component and the permanent-magnetism auxiliary exciter are respectively sleeved on the rotor rotation shaft of the main generator through a connection shaft sleeve and rotate synchronically with the rotor rotation shaft; the outer surface of the stand is provided with a heat radiation pipe that is communicated with the cavity of the stand in a welding way. The generator not only has good explosion-proof performance and favorable wave form of the power generation voltage, but also has compact structure and ingenious design of the cooling system, and has advantages of small vibration, good heat radiation effect, reasonable temperature increase, safe and reliable power generation running, and the like.
Description
Technical field
The utility model belongs to technical field of generators, particularly moves a kind of explosion isolation type low-voltage explosion-proof power generator that the supporting diesel generating set of explosion-proof generator car is used with underground mine use.
Background technology
At present, along with the degree of depth of coal mining working face constantly increases, the coal mine equipment difficulty of going into the well and move is also increasing, going into the well of main equipment has three kinds of modes with moving to adopt usually: the one, and decomposition is disintegrated into each parts and is gone into the well, then carry out site installation at working face, this mode not only the cycle long, working strength is big, and parts damages are serious, make the reliability of equipment work can not guarantee.The 2nd, by the flat car transportation, mobile device integral body is placed on the flat car, utilize its power to be transported to the destination.This mode requires the underworkings height higher, and adaptability is relatively poor in the down-hole, and the general requirement of the power of flat car is bigger, and general explosion-proof being difficult to meets the demands.The 3rd, movable equipment passes through cable reserve relay power supply, drag the mode of cable after the utilization, equipment is shifted, because the restriction of cable length and line drop, transportation range is limited, when long-distance transportation, the cable that continues that need often stop, and cable also needs manually to pull, and labour intensity is big, and cable is in frequent state of wear, and Supply Security is relatively poor.In the prior art, common used generator, the support of its main generator and AC exciter and permanent magnetism pilot exciter is split type, terminal box is many, comprise main generator, AC exciter and permanent magnetism pilot exciter and thermometric lead-in wire, make that the interior lead wire of terminal box is too many, make troubles to installation and maintenance.In addition, the salient pole of low pressure salient pole generator rotor adopts the machine-shaping of alloy steel material fluting more, causes the lot of materials waste, and labor content is big, the cost height.Its exciter magnetic pole adopts the punching laminated structure, and the mould consumption is big, time-consuming taking a lot of work.Particularly up to now till, also do not have the comparatively desirable low pressure explosion-proof flame proof technology of generating electricity.
The utility model content
The purpose of this utility model provides a kind ofly has good flame-proof explosion-proof performance, and its compact conformation, rationally, and reliable, installation and maintenance are easy, makes, operating cost is low, the explosion isolation type low-voltage explosion-proof power generator that generating efficiency is high.
Realize that the technical scheme that the purpose of this utility model is taked is: this machine is by main generator, AC exciter and permanent magnetism pilot exciter are formed, wherein, AC exciter and permanent magnetism pilot exciter all are positioned at main generator support chamber, main generator has main generator unit stator that is connected with support split suit and the rotor shaft that is connected with sole plate supports by the end cap bearing, cooling fan, main generator rotor, AC exciter, rotary rectifier assembly and permanent magnetism pilot exciter are sleeved on the rotor main shaft of main generator successively by connecting bushing respectively, and, be provided with the radiating tube that is welded to connect and is communicated with the support inner chamber at the outer surface cloth of support with its synchronous rotation.
Evenly be laid with a plurality of axial ventilation holes on the stator core of described main generator unit stator.
Described main generator rotor is a salient pole nest plate type structure, and rotor coil adopts the edge-wind moulding, and the pole lamination of its rotor adopts whole punch forming.
Described support is to have the tubular structure of strengthening gusset and having the sealing explosion-proof chamber, and the two ends of support are provided with explosion insulation shell, and its end cap cooperates the formation explosion suppresion surface with the faying face of support port.
The stator of described AC exciter and permanent magnetism pilot exciter is installed on the same support, and rotor is installed on the same axle sleeve.
Be connected in series with the automatic magnetic exciting voltage regulator that can carry out excitation control by signal transmssion line between described permanent magnetism pilot exciter and the AC exciter to generator, this adjuster places in the exciter terminal box, and this terminal box cooperates the formation explosion suppresion surface with the faying face of support connecting portion.
The terminals of described main generator unit stator are connected with explosion-proof connection box, adopt the explosion suppresion surface fit structure between its terminal box bearing and the explosion-proof connection box, through wires hole adopts explosive-proof sealed material to water envelope, in this terminal box voltage transformer is housed, is connected with the automatic magnetic exciting voltage regulator by signal transmssion line.
Described AC exciter magnetic pole is an overall structure, adopts the direct excision forming of steel plate.
Described permanent magnetism pilot exciter adopts 16 utmost point three-phase synchronous generators, and the magnetic pole of this machine adopts whole magnet steel structure, and by being bolted on the axle sleeve.
Described rotary rectifier assembly is made up of the rectification module, piezo-resistance and the positive and negative electrode collector ring that are laid on the same disk-shaped bracket.
According to the explosion isolation type low-voltage explosion-proof power generator that such scheme is made, its beneficial effect is:
1) excitation generator and permanent magnetism pilot exciter and main generator are positioned at same support, make whole generating machine structure compact more, for realizing the good explosion insulation performance condition that provides the foundation, simultaneously, its AC exciter and permanent magnetism pilot exciter are with the optimal design of support installation and field structure thereof, and rotating rectifier dish employing single-deck radial arrangement, and the axial dimension of generator is dwindled greatly, can reduce taking up room of generator, also make generator operation more steady.
2) AC exciter and permanent magnetism pilot exciter all adopt high number of poles synchronous generator, and have disposed automatic magnetic exciting monitoring, regulating system, can guarantee the power generating quality of generator effectively.
3) the inner cooling air duct design of this generator is ingenious rationally, and adopts the inside and outside dual cooling structure, makes this machine reach ideal effects such as compact conformation, good heat dissipation effect, the good generator operation of explosion insulation performance be safe and reliable.
4) it is good that this generator also has output voltage waveforms, and complete machine and the vibration of each are less, and generating, excitation system temperature rise are reasonable, and simple in structure, installation and maintenance convenient, advantages such as cheap, little, the convenient transportation that takes up room.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of rotating rectifier dish among Fig. 1;
Fig. 3 is the left view of Fig. 2.
Embodiment
Referring to Fig. 1, explosion isolation type low-voltage explosion-proof power generator of the present utility model, comprise main generator, AC exciter and permanent magnetism pilot exciter, wherein, main generator is by support 1, main generator unit stator 7 and main generator rotor 8 are formed, main generator unit stator 7 is connected with support 1 tight fit suit, the heat that makes main generator unit stator 7 generations in service dispels the heat by the conduction of support outer wall, the circumferential location of main generator unit stator iron core evenly is laid with a plurality of axial ventilation holes simultaneously, and, main generator unit stator 7 is carried out good cooling with the cooling air duct of main generator air gap structure main generator unit stator 7.Main generator rotor 8 is a salient pole nest plate type structure, its pole lamination adopts whole punch forming, the main generator rotor coil adopts the edge-wind moulding, not only has rigidity intensity preferably, and structure is compact more, and the gap between its magnetic pole forms the cooling air duct of main generator rotor 8 with the main generator air gap.The two ends of main generator rotor main shaft 2 are by end cap bearing and support 1 support and connection, and its power intake is equipped with interior cooling fan 4.Support 1 has the reinforcement plate for outer wall and has the tubular structure of sealing explosion-proof chamber, its two ends are provided with explosion insulation shell 5, this end cap cooperates the formation explosion suppresion surface with the port faying face of support 1, simultaneously sealed bearing gland 3 all is housed in the inside and outside both sides of end cap bearing, be provided with explosion suppresion surface between bearing gland 3 and the explosion insulation shell 5, thereby make the support inner chamber form airtight explosion-proof chamber with good explosion insulation performance.The radiating tube 19 that is communicated with the support inner chamber is evenly laid and be welded to connect to the outer surface of support 1, under the graviational interaction of interior cooling fan 4, form a totally enclosed cooling circuit with the air gap wind path of main generator unit stator wind path, rotor wind path and AC exciter and permanent magnetism pilot exciter, can prevent the intrusion of support 1 external dust reliably, guarantee the normal operation of main generator and excitation system.In addition, the rotor main shaft external part of support 1 afterbody is equipped with outer cooling fan 16 and air inducing guard shield 17, under its effect, makes radiating tube 19 and support 1 outer surface reach desirable radiating effect.
AC exciter and permanent magnetism pilot exciter are installed in the explosion-proof chamber of support 1, on both same supports 15 that stator 10,12 is fixedly mounted on the support suit is connected, on both same connecting bushings 18 that rotor 11,13 is installed in rotor main shaft 2 is connected.AC exciter adopts 10 utmost point revolving-armature type three-phase synchronous generators, and its magnetic pole is an overall structure, adopts the direct excision forming of steel plate, and manufacture craft is simpler, and can save a large amount of moulds and expenditure of time.The permanent magnetism pilot exciter adopts 16 utmost point three-phase synchronous generators, and the magnetic pole of this machine adopts whole magnet steel structure, and by being bolted on the axle sleeve.This structural design makes the whole generating machine compact more, has higher rigidity and in conjunction with fastness, adopt high-pole count generators simultaneously, the exciting current that it provided has good waveform, thereby can guarantee that the voltage that generating set sends has fine qualities.
The outside of support 1 is equipped with the main generator explosion-proof connection box 6 that is used for the output of main generator voltage and connects, the monitoring terminal box 20 that is used to regulate the excitation terminal box 14 of exciting voltage and monitors the generator internal temperature respectively, and each terminal box cooperates the formation explosion suppresion surface with the faying face of support 1 connecting portion.Wherein, explosion-proof connection box 6 is connected with the terminals of main generator unit stator 7, and adopts the explosion suppresion surface fit structure between the terminal box bearing, and through wires hole adopts explosive-proof sealed material to water envelope, has explosion insulation performance preferably.In the explosion-proof connection box 6 voltage transformer is housed, is connected with automatic excitation regulator, be used for monitoring and transmission main generator output voltage signal by signal transmssion line.Digital automatic magnetic exciting voltage regulator is housed in the excitation terminal box 14, this adjuster is connected by the voltage transformer in signal transmssion line and the explosion-proof connection box 6, and its current input terminal is connected with the current output terminal of permanent magnetism pilot exciter and the current input terminal of AC exciter respectively with output.In the running of generating set, digital automatic magnetic exciting voltage regulator automatically adjusts according to the situation of the main generator output voltage input voltage to AC exciter, immediately adjust the exciting voltage intensity and the waveform of main generator thus, and then guarantee the normal operation and the power generating quality thereof of generating set.
Claims (10)
1, a kind of explosion isolation type low-voltage explosion-proof power generator, this machine is by main generator, AC exciter and permanent magnetism pilot exciter are formed, it is characterized in that: AC exciter and permanent magnetism pilot exciter all are positioned at main generator support chamber, main generator has main generator unit stator that is connected with support split suit and the rotor shaft that is connected with sole plate supports by the end cap bearing, interior cooling fan, main generator rotor, AC exciter, rotary rectifier assembly and permanent magnetism pilot exciter are sleeved on the rotor main shaft of main generator successively by connecting bushing respectively, and, be provided with the radiating tube that is welded to connect and is communicated with the support inner chamber at the outer surface cloth of support with its synchronous rotation.
2, explosion isolation type low-voltage explosion-proof power generator according to claim 1 is characterized in that: evenly be laid with a plurality of axial ventilation holes on the stator core of described main generator unit stator.
3, explosion isolation type low-voltage explosion-proof power generator according to claim 1 is characterized in that: described main generator rotor is a salient pole nest plate type structure, and rotor coil adopts the edge-wind moulding, and the pole lamination of rotor adopts whole punch forming.
4, explosion isolation type low-voltage explosion-proof power generator according to claim 1, it is characterized in that: described support is to have the tubular structure of strengthening gusset and having the sealing explosion-proof chamber, the two ends of support are provided with explosion insulation shell, and its end cap cooperates the formation explosion suppresion surface with the faying face of support port.
5, explosion isolation type low-voltage explosion-proof power generator according to claim 1 is characterized in that: the stator of described AC exciter and permanent magnetism pilot exciter is installed on the same support, and rotor is installed on the same axle sleeve.
6, explosion isolation type low-voltage explosion-proof power generator according to claim 1, it is characterized in that: be connected in series with the automatic excitation regulator that can carry out excitation control by signal transmssion line between described permanent magnetism pilot exciter and the AC exciter generator, this automatic magnetic exciting voltage regulator places in the exciter terminal box, and this terminal box cooperates the formation explosion suppresion surface with the faying face of support connecting portion.
7, explosion isolation type low-voltage explosion-proof power generator according to claim 1, it is characterized in that: the terminals of described main generator unit stator are connected with explosion-proof connection box, adopt the explosion suppresion surface fit structure between its terminal box bearing and the explosion-proof connection box, through wires hole adopts explosive-proof sealed material to water envelope, in this terminal box voltage transformer is housed, is connected with the automatic magnetic exciting voltage regulator by signal transmssion line.
8, explosion isolation type low-voltage explosion-proof power generator according to claim 1 is characterized in that: described AC exciter magnetic pole is an overall structure, adopts the direct excision forming of steel plate.
9, explosion isolation type low-voltage explosion-proof power generator according to claim 1 is characterized in that: described permanent magnetism pilot exciter adopts 16 utmost point three-phase synchronous generators, and the magnetic pole of this machine adopts whole magnet steel structure, and by being bolted on the axle sleeve.
10, explosion isolation type low-voltage explosion-proof power generator according to claim 1 is characterized in that: described rotary rectifier assembly is made up of the rectification module, piezo-resistance and the positive and negative electrode collector ring that are laid on the same disk-shaped bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201479812U CN201238249Y (en) | 2008-07-15 | 2008-07-15 | Explosion-proof low-voltage anti-burst electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201479812U CN201238249Y (en) | 2008-07-15 | 2008-07-15 | Explosion-proof low-voltage anti-burst electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201238249Y true CN201238249Y (en) | 2009-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201479812U Expired - Fee Related CN201238249Y (en) | 2008-07-15 | 2008-07-15 | Explosion-proof low-voltage anti-burst electric motor |
Country Status (1)
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| CN (1) | CN201238249Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332768A (en) * | 2011-08-06 | 2012-01-25 | 无锡市中达电机有限公司 | Junction box for motor temperature-measuring device |
| CN105743313A (en) * | 2016-03-30 | 2016-07-06 | 江西清华泰豪三波电机有限公司 | Intermediate-frequency brushless power generator with high rotational speed |
| CN110380575A (en) * | 2019-07-02 | 2019-10-25 | 哈尔滨工程大学 | A kind of self-excitation synchronous generator with radial-flow type heat dissipation wind wheel |
-
2008
- 2008-07-15 CN CNU2008201479812U patent/CN201238249Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332768A (en) * | 2011-08-06 | 2012-01-25 | 无锡市中达电机有限公司 | Junction box for motor temperature-measuring device |
| CN105743313A (en) * | 2016-03-30 | 2016-07-06 | 江西清华泰豪三波电机有限公司 | Intermediate-frequency brushless power generator with high rotational speed |
| CN105743313B (en) * | 2016-03-30 | 2018-07-06 | 江西清华泰豪三波电机有限公司 | A kind of high rotating speed intermediate frequency brushless generator |
| CN110380575A (en) * | 2019-07-02 | 2019-10-25 | 哈尔滨工程大学 | A kind of self-excitation synchronous generator with radial-flow type heat dissipation wind wheel |
| CN110380575B (en) * | 2019-07-02 | 2021-08-13 | 哈尔滨工程大学 | Self-excited synchronous generator with radial-flow type heat-dissipation wind wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20110715 |