CN205248985U - Wind path structure in large -scale positive die mould three -phase asynchronous motor - Google Patents
Wind path structure in large -scale positive die mould three -phase asynchronous motor Download PDFInfo
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- CN205248985U CN205248985U CN201520947936.5U CN201520947936U CN205248985U CN 205248985 U CN205248985 U CN 205248985U CN 201520947936 U CN201520947936 U CN 201520947936U CN 205248985 U CN205248985 U CN 205248985U
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Abstract
The utility model discloses a wind path structure in large -scale positive die mould three -phase asynchronous motor is through setting up axial support rib plate on the electric motor rotor support to set up the cooler that has inner tube and urceolus in frame top, simultaneously, set up at cooling mouthful top and force the fan, thereby effectively form the inner loop wind channel between both ends and inner tube and the interior urceolus about the cooler, realization motor temperature drop, the assurance motor can steady in a long -termly move. On the one hand, through spider installation deep floor, both play good strong effect on the motor shaft, had centrifugal fan's effect again, on the other hand further promotes wind pressure, the amount of wind of interior wind path through forcing the fan to combine the cooling tube to carry out absolutely empty cooling to the circulating current, simultaneously, above -mentioned wind path structure makes rotor air distribution even, more does benefit to and decides rotor heat dissipation cooling, thereby greatly improved the heat dissipation cooling efficiency of motor, effectively satisfies large -scale positive die mould three -phase asynchronous motor's high -efficient heat dissipation cooling needs.
Description
Technical field
The utility model relates to large-scale positive pressure type threephase asynchronous falling temperature technique field, relates in particular to wind path structure in a kind of large-scale positive pressure type threephase asynchronous.
Background technology
The electromagnetic load of motor was more and more higher in the last few years, and capacity motor is increasing, and electric machine temperature rise is the principal element of limiting motor capacity, therefore must improve cooling system and meet the heat radiation needs of large-size machine.
Positive pressure type threephase asynchronous, its structure belongs to case structure, air path system in the motor of most of case structure, all on employing rotor, to install the dynamical element of internal fan as interior wind path circulation additional, mainly contain following two kinds: an internal fan is installed on rotor, internal fan is installed on rotor one end, i.e. usually said one-sided wind path. This wind path structure can increase cooling air quantity by the larger internal fan of installation dimension, but shortcoming is inhomogeneous by the air quantity of rotor ventilating duct.
Two internal fans are installed on rotor, and internal fan is installed on two ends of rotor, i.e. usually said symmetrical wind path. This wind path structure can make by the air quantity of rotor ventilating duct more even, but shortcoming is because structural limitations can not be installed larger internal fan, therefore cannot effectively increase cooling air quantity.
Above two kinds of wind path structures also have the common shortcoming of following two aspects: on the one hand due to internal fan being installed on rotor, the volume of motor is increased, this increased manufacturing cost, is also unfavorable for the operation and maintenance of motor. Due to the restriction of the rotor speed of motor own, the air quantity that internal fan provides is also restricted on the other hand, after rotating speed and internal fan are determined, interior wind path air quantity is determined, cannot be continued to increase air quantity again.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, air quantity is large and be evenly distributed, simultaneously, internal fan need to be installed on rotor, compact conformation, motor volume are little, easy access safeguard and the large-scale positive pressure type threephase asynchronous that reduces production costs in wind path structure.
For realizing the technical scheme that the purpose of this utility model adopts be: wind path structure in a kind of large-scale positive pressure type threephase asynchronous, comprise the support of case structure and be arranged on stator and the rotor in this support, rotor comprises axle and is arranged on the rotor field spider on axle, axial support gusset is installed on rotor field spider, described support top is provided with cooler, this cooler has inner core and urceolus, urceolus lower end is connected with described support, upper end is provided with end shield, in end shield, be provided with and force fan, its sidepiece has horizontal air outlet, bottom has suction nozzle, inner core outside is arranged in urceolus by support member, the stator position corresponding with support, the lower end of inner core connects, upper end is connected with the suction nozzle of described end shield.
Described cooler is hollow cooler, and this cooler places and is laid with some horizontal ventilation cooling tubes.
Described cooling tube is pipe cross arrangement.
Described end shield is two U-shaped end shields, described in to force fan be two, be separately positioned in two U-shaped end shields, the air outlet of two U-shaped end shields is respectively towards the left and right sides of support direction, and two U-shaped end shield orientations are vertical with rotor axis direction.
The described fan that forces is centrifugal fan.
The utility model by arranging axial support gusset on motor rotor rack, and arrange and there is the cooler of inner core and urceolus above support, simultaneously, arrange and force fan at cooling vent top, thereby circulation air path in effectively forming between the upper and lower two ends of cooler and inner core and inner/outer tube, realize motor temperature drop, ensure that motor can steady in a long-term move. On the one hand, on motor shaft, install and strengthen gusset by rotor field spider, both played good strong effect, there is again the effect of centrifugal fan, thereby effectively realize the function of internal fan, the interior wind path that makes motor is under the prerequisite that still can keep larger air quantity, and structure is compacter, reduces motor axial length and volume size, reduces equipment cost; On the other hand, by forcing fan further to promote blast, the air quantity of interior wind path, and in conjunction with cooling tube, circulating current is carried out to absolutely empty cooling, simultaneously, above-mentioned wind path structure makes rotor allocation of the amount of air even, be more conducive to rotor radiating and cooling, thereby greatly improved radiating and cooling effect of motor, effectively meet the high efficiency and heat radiation cooling needs of large-scale positive pressure type threephase asynchronous.
Further, circulate in wind path by two forcing in the two air channels of fan realization, simultaneously, coordinate U-shaped end shield, the fan pressure of wind path is significantly improved, thereby further improve interior air circulation, wind speed and blast, make the radiating and cooling effect row of motor to further strengthening. The utility model is cancelled conventional end internal fan on support inner rotor shaft, make the structure of motor compacter, and easy access is safeguarded more, the interior wind path air quantity of this structure is large and be evenly distributed, can effectively make electric machine temperature rise reduce 10K-15K, greatly improve service life and the reliability of motor.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of the utility model rotor;
Fig. 3 is the structural representation of cooler in the utility model;
Fig. 4 is the plan structure schematic diagram of cooler in the utility model preferred version.
Detailed description of the invention
Referring to Fig. 1-3, wind path structure in large-scale positive pressure type threephase asynchronous of the present utility model, comprise the support 4 of case structure and be arranged on stator 5 and the rotor in this support, rotor is arranged in support 4 by end cap 2 and the bearing 10 at support 4 two ends, makes rotor keep rotating with one heart with stator 5 by bearing 10 to the supporting role of rotor. Rotor comprises axle 1 and is arranged on the rotor field spider 3 on axle 1, the cage structure of rotor field spider 3 for being made by steel plate, on this rotor field spider 3, be provided with punching 12, in this punching 12, be fixed with sliver 11, axial support gusset 9 be also installed on rotor field spider 3, bearing rib 9 centered by rotor axis radially circumference arrange, when motor rotation, bearing rib 9 rotates with rotor field spider 3 and axle 1, realizes when supporting strong effect, forms fan effect in motor.
Described support 4 tops are provided with cooler 6, this cooler 6 is hollow cooler, place the pipe part cooling tube 63 of the level ventilation of some cross arrangement, this cooler 6 has inner core 61 and urceolus 61, urceolus 61 lower ends are connected with described support 4, top board center, upper end is provided with end shield 64, in end shield 64, be provided with and force fan 7, force fan 7 for centrifugal fan, end shield 64 sidepieces have horizontal air outlet 67, bottom has suction nozzle 65, on inner core 61 lateral walls, be arranged in urceolus 62 by support member, the position of the lower end of inner core 62 stator 5 corresponding with support 4 connects, upper end is connected with the suction nozzle 65 of described end shield 64, thereby making motor form air-flow rises by inner core 61 is inner, and decline along between inner/outer tube, enter behind support 4 inside, blow over after rotor, enter again in inner tube 61, the constantly interior wind path structure of circulation, in the corner, top of this cooler, cambered plate 66 is set, thereby make air-flow more unobstructed, avoid eddy current, by forcing fan 7 and bearing rib 9 to make blast powerful, air quantity is large, cooling efficiency is high, cooler 6 passes through heat after cooling tube heat exchange, taken away by the air-flow in cooling tube.
Referring to Fig. 4, be further used as preferred version, described end shield 64 is two U-shaped end shields, described to force fan 7 be two, is separately positioned in two U-shaped end shields, and the air outlet of two U-shaped end shields is respectively towards the left and right sides of support direction, as Fig. 4, one towards the air-out of A direction, a Chaoyang B direction air-out, and two U-shaped end shield orientations are vertical with rotor axis direction.
Applicant's advanced development, by the repeatedly test to multiple motors, remarkable to the cooling effect of motor, can effectively make electric machine temperature rise reduce 10K-15K, realize motor operation steady in a long-term.
The technical solution of the utility model is not restricted in the scope of embodiment described in the utility model, and the utility model not technology contents of detailed description is known technology.
Claims (5)
1. wind path structure in one kind large-scale positive pressure type threephase asynchronous, comprise the support of case structure and be arranged on stator and the rotor in this support, rotor comprises axle and is arranged on the rotor field spider on axle, it is characterized in that: axial support gusset is installed on rotor field spider, described support top is provided with cooler, this cooler has inner core and urceolus, urceolus lower end is connected with described support, upper end is provided with end shield, in end shield, be provided with and force fan, its sidepiece has horizontal air outlet, bottom has suction nozzle, inner core outside is arranged in urceolus by support member, the stator position corresponding with support, the lower end of inner core connects, upper end is connected with the suction nozzle of described end shield.
2. wind path structure as claimed in claim 1, is characterized in that: described cooler is hollow cooler, and this cooler places and is laid with some horizontal ventilation cooling tubes.
3. wind path structure as claimed in claim 2, is characterized in that: described cooling tube is pipe cross arrangement.
4. wind path structure as claimed in claim 1, it is characterized in that: described end shield is two U-shaped end shields, the described fan that forces is two, be separately positioned in two U-shaped end shields, the air outlet of two U-shaped end shields is respectively towards the left and right sides of support direction, and two U-shaped end shield orientations are vertical with rotor axis direction.
5. the wind path structure as described in claim 1-4 any one claim, is characterized in that: described in to force fan be centrifugal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947936.5U CN205248985U (en) | 2015-11-25 | 2015-11-25 | Wind path structure in large -scale positive die mould three -phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947936.5U CN205248985U (en) | 2015-11-25 | 2015-11-25 | Wind path structure in large -scale positive die mould three -phase asynchronous motor |
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| Publication Number | Publication Date |
|---|---|
| CN205248985U true CN205248985U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520947936.5U Active CN205248985U (en) | 2015-11-25 | 2015-11-25 | Wind path structure in large -scale positive die mould three -phase asynchronous motor |
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| CN (1) | CN205248985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242775A (en) * | 2020-11-30 | 2021-01-19 | 卧龙电气南阳防爆集团股份有限公司 | Box type high-speed motor |
-
2015
- 2015-11-25 CN CN201520947936.5U patent/CN205248985U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242775A (en) * | 2020-11-30 | 2021-01-19 | 卧龙电气南阳防爆集团股份有限公司 | Box type high-speed motor |
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