A kind of self-ventilation pulling motor wind-and-sand-proof apparatusTechnical field
The present invention relates to blast strainer, specifically a kind of self-ventilation pulling motor wind-and-sand-proof apparatus.
Background technology
The ventilating and cooling of self-ventilation pulling motor is the important step for ensureing each part normal operation of locomotive.Because locomotive is grownThe foreign matters such as the grains of sand of the phase in outdoor operation, air, rainwater are easy to as cooling wind enters inside self-ventilation pulling motor, byThis causes to damage to self-ventilation pulling motor, self-ventilation pulling motor stalling is even resulted in, so as to influence self-ventilation pulling motorNormal operation.In order to ensure self-ventilation pulling motor normal operation, at present using blast strainer to entering in self-ventilation pulling motorThe cooling wind in portion is filtered.As Figure 1-Figure 2, the structure of existing blast strainer includes frame portion and filtering core segment；InstituteStating frame portion includes concave shape frame 15；The filtering core segment includes multiple bar shaped filters 25；Each bar shaped filter25 cross section is in Curved；Each bar shaped filter 25 is flush-mounted in the frame intracavitary of concave shape frame 15, and each filteringPiece 25 is in arranged in parallel.Practice have shown that existing blast strainer, by self structure is limited, there are the following problems：First, existing filter windThe overall profile of device is square, and causes its space-consuming big, thus causes it not to be suitable for the nervous situation of locomotive assembly space.Second, the cross section of the bar shaped filter of existing blast strainer is in Curved, cause its complicated, thus cause its manufacture difficultyGreatly.Third, the frame portion of existing blast strainer lacks impurity exhaust structure, cause it can not discharge the foreign matter filtered out in time,Thereby result in foreign matter accumulation.Based on this, it is necessary to a kind of brand-new blast strainer is invented, to solve existing blast strainer space-consumingGreatly, complicated, the problem of foreign matter filtered out can not being discharged in time.
The content of the invention
The present invention in order to solve existing blast strainer space-consuming it is big, it is complicated, the foreign matter filtered out can not be discharged in timeThe problem of, there is provided a kind of self-ventilation pulling motor wind-and-sand-proof apparatus.
The present invention adopts the following technical scheme that realization：
A kind of self-ventilation pulling motor wind-and-sand-proof apparatus, including frame portion and filtering core segment；
The frame portion includes great circle segmental arc frame, roundlet segmental arc frame, two straight section frames；Roundlet segmental arc frame withGreat circle segmental arc frame is generally aligned in the same plane, and the axis of the axis of roundlet segmental arc frame and great circle segmental arc frame overlaps；TwoBoth ends of the head end of individual straight section frame respectively with roundlet segmental arc frame are processed as one, and two straight section frames are parallel to each other；TwoBoth ends of the end of individual straight section frame respectively with great circle segmental arc frame flush, and the end of two straight section frames and great circle segmental arc sideTwo foreign matter outlets are respectively kept between the both ends of frame；Great circle segmental arc frame, roundlet segmental arc frame, two straight section frames are commonEnclose to form circular arc frame chamber；
The filtering core segment includes filter after filter, N number of bar shaped before circular arc support flat board, N number of bar shaped；Circular arcShape support flat board is flush-mounted in circular arc frame intracavitary；Insertion offers N number of bar shaped and led between the front and rear surfaces of circular arc support flat boardAir holes, and N number of bar shaped air vent is in arranged in parallel；The cross section of filter is in straight before N number of bar shaped；Filtered before N number of bar shapedPiece is respectively positioned on the front side of circular arc support flat board, and filter is in arranged in parallel before N number of bar shaped；A left side for filter before N number of bar shapedThe preceding aperture left hand edge of edge and N number of bar shaped air vent, which corresponds, to be fixed, and filter is tiltedly right correspondingly before N number of bar shapedN number of bar shaped air vent；The cross section of filter is in straight after N number of bar shaped；Filter is respectively positioned on circular arc support after N number of bar shapedThe rear side of flat board, and filter is in arranged in parallel after N number of bar shaped；The left hand edge of filter and N number of bar shaped air vent after N number of bar shapedRear aperture left hand edge correspond fix, and after N number of bar shaped filter correspondingly tiltedly to N number of bar shaped air vent；
N is positive integer.
During work, the driving end end face of great circle segmental arc frame and self-ventilation pulling motor is fixed, and ensure roundlet segmental arcThe rotating shaft side-anastomosis of frame and self-ventilation pulling motor.When self-ventilation pulling motor is run, cooling wind leads to via N number of bar shapedAir holes circuitously enters inside self-ventilation pulling motor（As shown in Figure 5）.Enter in cooling wind inside self-ventilation pulling motorDuring, larger-size foreign matter is kept off outside self-ventilation pulling motor by filter before N number of bar shaped in air, size in airLess foreign matter is patted after N number of bar shaped on filter with the wind, is then discharged, is achieved in time via two foreign matter outletsFiltered to entering the cooling wind inside self-ventilation pulling motor.Based on said process, compared with existing blast strainer, this hairA kind of bright described self-ventilation pulling motor wind-and-sand-proof apparatus possesses following advantage by using brand new：First, this hairBright overall profile is rounded, therefore its space-consuming is smaller, is completely suitable for the nervous situation of locomotive assembly space.Second,The cross section of the filter of the present invention is in straight, therefore its structure is simpler, and manufacture difficulty is smaller.Third, the frame of the present inventionPart is provided with impurity exhaust structure, therefore it can discharge the foreign matter filtered out in time, effectively prevent foreign matter accumulation.
The present invention it is rational in infrastructure, ingenious in design, efficiently solve existing blast strainer space-consuming it is big, it is complicated, can notThe problem of foreign matter filtered out is discharged in time, suitable for self-ventilation pulling motor.
Brief description of the drawings
Fig. 1 is the structural representation of existing blast strainer.
Fig. 2 is the structural representation that core segment is filtered in existing blast strainer.
Fig. 3 is the structural representation of the present invention.
Fig. 4 is the structural representation of circular arc support flat board in the present invention.
Fig. 5 is the structural representation that core segment is filtered in the present invention.
In figure：11- great circle segmental arc frames, 12- roundlet segmental arc frames, 13- straight section frames, 14- foreign matter outlets, 15- are recessedFont frame, 21- circular arcs support flat board, filter before 22- bar shapeds, filter after 23- bar shapeds, 24- bar shaped air vents, 25-Bar shaped filter；Arrow represents cooling wind.
Embodiment
A kind of self-ventilation pulling motor wind-and-sand-proof apparatus, including frame portion and filtering core segment；
The frame portion includes 12, two great circle segmental arc frame 11, roundlet segmental arc frame straight section frames 13；Roundlet segmental arcFrame 12 is generally aligned in the same plane with great circle segmental arc frame 11, and the axle of the axis of roundlet segmental arc frame 12 and great circle segmental arc frame 11Line overlaps；Both ends of the head end of two straight section frames 13 respectively with roundlet segmental arc frame 12 are processed as one, and two straightSection frame 13 is parallel to each other；Both ends of the end of two straight section frames 13 respectively with great circle segmental arc frame 11 flush, and two straightTwo foreign matter outlets 14 are respectively kept between the section end of frame 13 and the both ends of great circle segmental arc frame 11；Great circle segmental arc frame11st, 12, two straight section frames 13 of roundlet segmental arc frame enclose to form circular arc frame chamber jointly；
The filtering core segment includes filter after filter 22, N number of bar shaped before circular arc support flat board 21, N number of bar shaped23；Circular arc support flat board 21 is flush-mounted in circular arc frame intracavitary；Penetrate and open up between the front and rear surfaces of circular arc support flat board 21There is N number of bar shaped air vent 24, and N number of bar shaped air vent 24 is in arranged in parallel；The cross section of filter 22 is in straight before N number of bar shapedShape；Filter 22 is respectively positioned on the front side of circular arc support flat board 21 before N number of bar shaped, and filter 22 is in parallel before N number of bar shapedRow；The preceding aperture left hand edge of the left hand edge of filter 22 and N number of bar shaped air vent 24, which corresponds, before N number of bar shaped fixes, and N number ofFilter 22 is correspondingly tiltedly to N number of bar shaped air vent 24 before bar shaped；The cross section of filter 23 is in straight after N number of bar shapedShape；Filter 23 is respectively positioned on the rear side of circular arc support flat board 21 after N number of bar shaped, and filter 23 is in parallel after N number of bar shapedRow；The rear aperture left hand edge of the left hand edge of filter 23 and N number of bar shaped air vent 24, which corresponds, after N number of bar shaped fixes, and N number ofFilter 23 is correspondingly tiltedly to N number of bar shaped air vent 24 after bar shaped；
N is positive integer.
When it is implemented, the support of great circle segmental arc frame 11,12, two straight section frames 13 of roundlet segmental arc frame, circular arc is flatFilter 23 is made of aluminium alloy after filter 22, N number of bar shaped before plate 21, N number of bar shaped.Aluminium alloy has in light weight excellentPoint, thus meet motor lightweight requirements.