CN104500700A - Streetcar gear transmission device - Google Patents
Streetcar gear transmission device Download PDFInfo
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- CN104500700A CN104500700A CN201410776218.6A CN201410776218A CN104500700A CN 104500700 A CN104500700 A CN 104500700A CN 201410776218 A CN201410776218 A CN 201410776218A CN 104500700 A CN104500700 A CN 104500700A
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- oil
- upper box
- hole
- bearing
- shaft bearing
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- 230000005540 biological transmission Effects 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 74
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 238000010926 purge Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005461 lubrication Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 55
- 239000012530 fluid Substances 0.000 description 21
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000010724 circulating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0457—Splash lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a streetcar gear transmission device for a low-floor streetcar. The streetcar gear transmission device comprises an upper box body, a lower box body, a driving bearing seat assembly and a driven bearing seat assembly, wherein the upper box body is also provided with an oil inlet window, an oil collecting cavity, an oil discharging oil passage and a small oil window, the top of the upper box body is provided with a cover plate, the cover plate covers above a top opening of the oil collecting cavity, the driving gear seat assembly also comprises an oil baffle ring, a sealing ring, a small sealing cover, a first separation sleeve and a second separation sleeve, the driven bearing assembly also comprises a large sealing cover, a first oil seal, a second oil seal and a positioning sleeve, a driven gear is in interference connection onto a driven bearing seat, one end of the driven bearing seat is provided with a driving end surface fluted disc, a matched hole and a first positioning pin hole, the outer periphery of the driven bearing seat is provided with a first step and a second step, the other end of the driven bearing seat is provided with an operation hole and a first screw bolt hole, the matching hole and the operation hole are communicated through a center hole, and an upper end hanging element and a lower end hanging element are arranged on the upper box body. The streetcar gear transmission device has the advantages that the structure is simple and compact, the lubrication sealing effect is good, and the oil level can be conveniently observed.
Description
Technical field
The present invention relates to a kind of vehicle drive system, the gear drive especially in low-floor tram car transmission system.
Background technique
Low-floor tram car is a kind of boom town rail traffic vehicles between light rail and subway, and have unique advantage, wherein gear train assembly is the core of low-floor tram car.Current disclosed Chinese patent CN 101979266 A, describe a kind of 100% low-floor light rail vehicle mechanism of independent wheel power truck technology, the bogie of this light rail car is without axletree, adopt independent wheelset, wherein motor is vertical with wheel direction of advance with the layout of gear-box, and be CN 203717849 U for the existing patent of this kind of light rail car gear drive: a kind of First-stage spiral bevel gear transmission device, this gear drive output terminal to be coupled with wheel by a shaft coupling and to be connected, drive end and driven end adopt the Helical Bevel Gear being with Offset, achieve motion and moment of torsion transmission in the vertical direction, also reduce the center of gravity of whole casing, but this gear drive has following deficiency: the large bearing support of (1) output terminal is connected with wheel transition by a middle shaft coupling with wheel, the outboard end of shaft coupling is connected with brake disc, reduce transmission efficiency, and box house is provided with an oil collection plate, this oil collection plate can not play the oil-collecting effect of expection, if connect insecure may falling in casing on the contrary, cause safe thing, therefore job security is reduced, (2) design modifying pad is not had between pinion shaft assembly and casing, adjustment pad is not provided with between the large end cap of output terminal and casing yet, if accessory size processing is not in place, possibly cannot obtain desirable gear-pair backlash and contact area, rational bearing axial play can not be obtained, thus noise is excessive or temperature is too high when causing gear pair to work, reduce the operating life of gear and bearing, (3) erecting by overhang exceeds casing a lot, and whole pinion gear structure is compact not, casing only has an erecting by overhang fix, and the stability of installing rear box is bad, (4) the fluid situation of change of small bearing bracket inside can not be observed.
Summary of the invention
The object of the present invention is to provide that a kind of structure is simple, spaces compact, the tram car gear drive of be connected firmly, have good lubrication and sealing effect.
In order to achieve the above object, technological scheme of the present invention is: a kind of tram car gear drive, comprise upper box, lower box, active bearings seat assembly and driven shaft bearing assembly, described upper box and lower box are fixedly connected into casing, described upper box has upper wall inclined-plane, gear tank deck rank, first spill port and small bearing bracket hole, described active bearings seat assembly comprises little bearing, driving shaft bearing and pinion shaft, described active bearings seat assembly is contained in the small bearing bracket hole of upper box, the large bearing saddle bore of casing is jointly surrounded between described upper box and lower box, described driven shaft bearing assembly comprises large bearing, driven shaft bearing and driven gear, described driven shaft bearing assembly is contained on large bearing saddle bore, described pinion shaft and driven gear are helical bevel gear, and engage each other, the center line in small bearing bracket hole and the central axis of large bearing saddle bore, described upper box also has oil-feed window, collection chamber, to drain the oil oil duct and little oily window, described upper wall inclined-plane extends to oil-feed window, oil-feed window communicates with collection chamber, oil duct of draining the oil communicates with collection chamber, oil passage outlet of draining the oil is equipped with the first purge cock, described little oily window is facing to active bearings seat assembly, cover plate is equipped with at the top of described upper box, cover plate covers above collection chamber is open-topped, described active bearings seat assembly also comprises flinger ring, seal ring, little sealing cover, first spacer and the second spacer, and flinger ring, seal ring and little sealing cover three form the labyrinth seal system of drive end and form relief chamber, driving shaft bearing has oil inlet hole and oil-return groove, described little sealing cover has the first breach, first breach is communicated with the first spill port on oil-return groove and upper box, first spill port is communicated with cabinets cavity, described driven shaft bearing assembly also comprises large sealing cover, first oil sealing, second oil sealing and setting sleeve, driven gear interference is connected in driven shaft bearing, described large sealing cover respectively with the first oil sealing, second oil sealing forms the labyrinth seal system of two driven ends, the labyrinth seal system of this driven end has little oil back chamber and large oil back chamber, large sealing cover has the second breach, second breach is communicated with the second spill port on lower box, second spill port is communicated with cabinets cavity, one end of described driven shaft bearing has initiatively contrate gear, matching hole and the first positioning pin hole, periphery tool first step, second step, the other end has handle hole and the first bolt hole, described matching hole is communicated with by center hole with between handle hole, on described upper box and the outer end place being positioned at small bearing bracket hole is provided with upper end hanging and lower end is hung, the lifting hole(eyelet) center of described upper end hanging, the lifting hole(eyelet) center of lower end hanging and the center three of large bearing saddle bore are angular distribution.
Described lower box is provided with large oily window and the second purge cock.
Between the small bearing bracket outer end of hole face of described driving shaft bearing and upper box, minipad is installed, between the exterior edge face of described large sealing cover and large bearing saddle bore, large pad is installed.
Described lower box is connected by the 4th bolt and the 5th bolton with upper box, and the first taper pin location of bi-side is positioned at by two, upper box top has depression, in depression, Ventilated cap is housed, and Ventilated cap top is lower than the end face of casing, side does not exceed the side of casing.
Described upper box is also equipped with nameplate, has auxiliary hole, and the inclination angle theta 1 between the upper wall inclined-plane of described upper box and horizontal plane is 15 ° ~ 30 °, and the angle θ 2 between upper box mold joint and small bearing bracket centerline hole is 30 ° ~ 45 °.
Described active bearings seat assembly is bolted on upper box by second, two little bearings on described pinion shaft are positioned by the first spacer and the second spacer respectively, described driving shaft bearing has two the first opening tapped holes, described little sealing cover has two the second opening tapped holes.
Described driving shaft bearing also has little oily window oilhole, little oily window oilhole communicates with driving shaft bearing inner chamber, and the position of little oily window oilhole is corresponding to the little oily window on upper box.
Described large sealing is stamped two, lay respectively at the two ends of driven shaft bearing, large sealing cover has two the 3rd opening tapped holes, described large bearing saddle bore also has two, be distributed in the left and right sides of casing, described driven shaft bearing assembly is fixedly connected on casing by the 3rd bolt, and described second oil sealing is fastenedly connected in driven shaft bearing with the first coordinating of bolt hole by the first bolt.
The end face of a large sealing cover and the first oil sealing offsets with a side end face of corresponding large bearing, and the opposite side end face of this large bearing and first step offset; The end face of another large sealing cover and the second oil sealing offsets with another corresponding large bearing, and this another positioned by setting sleeve between large bearing and driven gear, driven gear and second step offset.
Described cover plate is contained in above the collection chamber of upper box by the 6th bolt, also by the second taper pin location between cover plate and upper box.
The present invention has the following advantages and beneficial effect:
1) the driven shaft bearing of driven end is directly connected with axletree, namely motion and moment of torsion directly can be delivered on wheel shaft, simplify transmission process and structure, upper wall inclined-plane by upper box carries out oil-collecting, eliminate the design of oil collection plate, and the Ventilated cap be arranged on casing does not exceed casing part, have that structure is simple, the feature of spaces compact;
2) on casing, be provided with rationally effective oil-feed oil circuit and oil return circuit, and be provided with suitable sealing system at drive end and driven end, ensure that drive end and from low end office (EO), there is good lubrication and sealing effect;
3) whole casing has three fastened connections in place, and upper end hanging, lower end are hung and driven shaft bearing is fastened is respectively connected on bogie and axletree, makes the casing be in place have better functional reliability and stability;
4) by adjusting the thickness of minipad and large pad, desirable bolt bevel gear pair meshing backlass and more reasonably contact area can be obtained, also little bearing and large bearing can be made to have more suitably axial internal clearance, thus raising gear-driven efficiency, reduce meshing noise, and effectively improve the operating life of gear and bearing;
5) little oily window is provided with at casing drive end, the situation of change of driving shaft bearing interior oil liquid can be observed, whether be normally convenient to monitoring lubrication in time, in addition, remove the cover plate above collection chamber, active bearings seat assembly inner case can being checked, when occurring abnormal, being convenient to find problem place in time;
6) on driving shaft bearing, little sealing cover and large sealing cover, all have opening tapped hole, greatly facilitate the dismounting of these parts, there is the feature of easy accessibility.
Accompanying drawing explanation
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.
Fig. 1 is the structural front view of tram car gear drive of the present invention;
Fig. 2 is the A direction view of Fig. 1;
Fig. 3 is the B direction view of Fig. 1;
Fig. 4 is the C-C sectional view of Fig. 1;
Fig. 5 is the D-D sectional view of Fig. 2;
Fig. 6 is the drive end zoomed-in view of Fig. 5;
Fig. 7 is the E-E sectional view of Fig. 2;
Fig. 8 is the whole-cutaway view of the driven shaft bearing in the present invention.
Embodiment
As shown in Fig. 1 ~ 8, tram car gear drive of the present invention, comprise upper box 1, lower box 6, active bearings seat assembly 2 and driven shaft bearing assembly 3, described upper box 1 is fixedly connected into casing with lower box 6, described upper box 1 has upper wall inclined-plane 1-9, gear tank deck rank 1-10, first spill port 1-11 and small bearing bracket hole 1-13, described active bearings seat assembly 2 comprises little bearing 2-4, driving shaft bearing 2-1 and pinion shaft 2-2, described active bearings seat assembly 2 is contained in the small bearing bracket hole 1-13 of upper box 1, the large bearing saddle bore 3-13 of casing is jointly surrounded between described upper box 1 and lower box 6, described driven shaft bearing assembly 3 comprises large bearing 3-3, driven shaft bearing 3-4 and driven gear 3-5, described driven shaft bearing assembly 3 is contained on large bearing saddle bore 3-13, described pinion shaft 2-2 and driven gear 3-5 is helical bevel gear, and engage each other, the center line of small bearing bracket hole 1-13 and the central axis of large bearing saddle bore 3-13, the distance d offseting the center line of small bearing bracket hole 1-13 under the center line of large bearing saddle bore 3-13 is 10mm ~ 50mm, described upper box 1 also has oil-feed window 1-8, collection chamber 1-1, drain the oil oil duct 1-12 and little oily window 1-5, described upper wall inclined-plane 1-9 extends to oil-feed window 1-8, oil-feed window 1-8 communicates with collection chamber 1-1, the oil duct 1-12 that drains the oil communicates with collection chamber 1-1, the first purge cock 1-3 is equipped with in the oil duct 1-12 that drains the oil outlet, described little oily window 1-5 is facing to active bearings seat assembly 2, cover plate 8 is equipped with at the top of described upper box 1, cover plate 8 covers above collection chamber 1-1 is open-topped, described active bearings seat assembly 2 also comprises flinger ring 2-6, seal ring 2-8, little sealing cover 2-7, first spacer 2-3 and the second spacer 2-5, and flinger ring 2-6, seal ring 2-8 and little sealing cover 2-7 three form the labyrinth seal system of drive end and form relief chamber 2-10, driving shaft bearing 2-1 has oil inlet hole 2-1-2 and oil-return groove 2-1-4, described little sealing cover 2-7 has the first breach 2-7-2, first breach 2-7-2 is communicated with the first spill port 1-11 on oil-return groove 2-1-4 and upper box 1, first spill port 1-11 is communicated with cabinets cavity 13, described driven shaft bearing assembly 3 also comprises large sealing cover 3-1, first oil sealing 3-2, second oil sealing 3-7 and setting sleeve 3-6, driven gear 3-5 interference is connected on driven shaft bearing 3-4, described large sealing cover 3-1 respectively with the first oil sealing 3-2, second oil sealing 3-7 forms the labyrinth seal system of two driven ends, the labyrinth seal system of this driven end has little oil back chamber 3-11 and large oil back chamber 3-12, large sealing cover 3-1 has the second breach 3-1-1, second breach 3-1-1 is communicated with the second spill port 6-5 on lower box 6, second spill port 6-5 is communicated with cabinets cavity 13, one end of described driven shaft bearing 3-4 has initiatively contrate gear 3-4-3, matching hole 3-4-2 and the first positioning pin hole 3-4-1, periphery tool first step 3-4-4, second step 3-4-5, the other end has handle hole 3-4-8 and the first bolt hole 3-4-6, described matching hole 3-4-2 is communicated with by center hole 3-4-7 with between handle hole 3-4-8, on described the upper box 1 and outer end place being positioned at small bearing bracket hole 1-13 is provided with upper end hanging 1-6 and lower end hanging 1-4, the lifting hole(eyelet) center of described upper end hanging 1-6, the lifting hole(eyelet) center of lower end hanging 1-6 and the center three of large bearing saddle bore 3-13 are angular distribution.
As shown in Figure 1, described lower box 6 is provided with large oily window 6-3 and the second purge cock 6-4.
As shown in Fig. 4,7, between the 1-13 exterior edge face, small bearing bracket hole of described driving shaft bearing 2-1 and upper box 1, minipad 7 is installed, between the exterior edge face of described large sealing cover 3-1 and large bearing saddle bore 3-13, large pad 5 is installed.
As shown in Figure 1, described lower box 6 is fastenedly connected by the 4th bolt 6-1 and the 5th bolt 6-2 with upper box 1, and located by two the first taper pins 11 being positioned at bi-side, upper box 1 top has depression 1-14, in depression 1-14, Ventilated cap 10 is housed, and Ventilated cap 10 top is lower than the end face of casing, side does not exceed the side of casing.
As shown in Figure 1, 2, described upper box 1 is also equipped with nameplate 1-2, have auxiliary hole 1-7, as shown in Fig. 5,1, inclination angle theta 1 between the upper wall inclined-plane 1-9 of described upper box 1 and horizontal plane is 15 ° ~ 30 °, and the angle θ 2 between upper box 1 mold joint and small bearing bracket hole 1-13 center line is 30 ° ~ 45 °.
As shown in Figure 4,5, described active bearings seat assembly 2 is fixed on upper box 1 by the second bolt 2-9, two on described pinion shaft 2-2 little bearing 2-4 are positioned by the first spacer 2-3 and the second spacer 2-5 respectively, described driving shaft bearing 2-1 has two the first opening tapped hole 2-1-1, described little sealing cover 2-7 has two the second opening tapped hole 2-7-1.
As shown in Fig. 5,1, described driving shaft bearing 2-1 also has little oily window oilhole 2-1-3, little oily window oilhole 2-1-3 communicates with driving shaft bearing 2-1 inner chamber, and the position of little oily window oilhole 2-1-3 is corresponding to the little oily window 1-5 on upper box 1.
As shown in Fig. 4,1,7, described large sealing cover 3-1 has two, lay respectively at the two ends of driven shaft bearing 3-4, large sealing cover 3-1 has two the 3rd opening tapped hole 3-10, described large bearing saddle bore 3-13 also has two, be distributed in the left and right sides of casing, described driven shaft bearing assembly 3 is fixedly connected on casing by the 3rd bolt 3-9, and described second oil sealing 3-7 is fastenedly connected on driven shaft bearing 3-4 with the first coordinating of bolt hole 3-4-6 by the first bolt 3-8.
As shown in Figure 7,8, the end face of a large sealing cover 3-1 and the first oil sealing 3-2 offsets with a side end face of corresponding large bearing 3-3, and the opposite side end face of this large bearing 3-3 and first step 3-4-4 offset; The end face of another large sealing cover 3-1 and the second oil sealing 3-7 offsets with another corresponding large bearing 3-3, and is positioned by setting sleeve 3-6 between this another large bearing 3-3 and driven gear 3-5, and driven gear 3-5 and second step 3-4-5 offsets.
As shown in Figure 1, 2, described cover plate 8 is contained in above the collection chamber 1-1 of upper box 1 by the 6th bolt 9, is also located by the second taper pin 12 between cover plate 8 and upper box 1.
As shown in Fig. 8,4, when the present invention is installed on vehicle, described driven shaft bearing 3-4 is corresponding with the second positioning pin hole 4-2 on axletree 4 by the first positioning pin hole 3-4-1, initiatively contrate gear 3-4-3 engages with the driven contrate gear 4-1 on axletree 4, the axle head of axletree 4 is placed in matching hole 3-4-2, moving axis bearing 3-4, by the center hole 3-4-7 of driven shaft bearing 3-4, is fastenedly connected on axletree 4 by king-bolt 4-3.
As Fig. 5, shown in 6, tram car gear drive drive end greasing of the present invention is as follows: motor driving pinion axle 2-2 rotates, pinion shaft 2-2 and driven gear 3-5 engages each other, thus drive driven gear 3-5 to rotate, driven gear 3-5 rotates the fluid part stirred and is thrown to upper wall inclined-plane 1-9, upper wall inclined-plane 1-9 has the effect of drainage oil-collecting, the fluid being thrown to upper wall inclined-plane 1-9 is entered oil inlet hole 2-1-2 place, driving shaft bearing 2-1 top by drainage, a part is directly dumped into oil-feed window 1-8 and falls into oil inlet hole 2-1-2 place, sub-fraction fluid is also had to be thrown to oil-feed window 1-8, fall into collection chamber 1-1 again.(note: the fluid being dumped into oil-feed window 1-8 when driven gear 3-5 rotates forward is slightly smaller, the fluid being dumped into oil-feed window 1-8 during reversion is more, but the oil mass of oil inlet hole 2-1-2 is flow into when the fluid amount being drained to oil inlet hole 2-1-2 from upper wall inclined-plane 1-9 when rotating forward is greater than reversion through upper wall inclined-plane 1-9, therefore the fluid total amount difference flowing into driving shaft bearing 2-1 top oil inlet hole 2-1-2 during clockwise and anticlockwise is little), the fluid falling into oil inlet hole 2-1-2 place flows into driving shaft bearing 2-1 inner chamber, because upper box 1 is provided with gear tank deck rank 1-10, the fluid avoided in driving shaft bearing 2-1 inner chamber flows into casing from the little bearing 2-4 near gear position, guarantee there is enough fluid in driving shaft bearing 2-1 inner chamber, two little bearing 2-4 are lubricated, but make fluid flow through the little bearing 2-4 of close axle head, enter into relief chamber 2-10 again, enter the fluid of relief chamber 2-10 again from the first breach 2-7-2, oil-return groove 2-1-4 flows into the first spill port 1-11, finally flow back to cabinets cavity 13, the fluid flowing back to cabinets cavity 13 is again stirred by driven gear 3-5 and is thrown to upper wall inclined-plane 1-9 and gets rid of into oil-feed window 1-8, form the circulating oil path of drive end, ensure that the lubrication effect of two little bearing 2-4.In addition, the labyrinth seal system be made up of little sealing cover 2-7, flinger ring 2-6 and seal ring 2-8 has good sealing effect, guarantees that drive end there will not be oil leakage phenomenon.
Driving shaft bearing 2-1 is provided with little oily window oilhole 2-1-3, coordinates with the little oily window 1-5 of upper box 1, can be observed the situation of change of fluid in driving shaft bearing 2-1 inner chamber by little oily window 1-5.Upper box 1 is also provided with collection chamber 1-1 simultaneously, and collection chamber 1-1 communicates with oil-feed window 1-8, the oil duct 1-12 and the first spill port 1-11 that drains the oil, and therefore, falls into the fluid of collection chamber 1-1, also can flow back to cabinets cavity 13 when gear pair runs.One of object of collection chamber 1-1 is when drive end lubrication effect is bad, directly from collection chamber 1-1, fluid is added the oil inlet hole 2-1-2 of driving shaft bearing 2-1, ensure that drive end has enough lubricating oils, another one object, that active bearings seat assembly 2 is when occurring abnormal, also check inner case by collection chamber 1-1, namely there is the effect of viewing window, and casing need not be disassembled from axletree 4.By the first purge cock 1-3 of upper box 1, the remaining fluid of collection chamber 1-1 all can be released.
As shown in Figure 7, tram car gear drive driven end greasing of the present invention is as follows: when driven gear 3-5 rotates, the gear teeth of driven gear 3-5 stir the roller clearance place that the fluid splash falls into two large bearing 3-3, and converge inflow large oil back chamber 3-12 and little oil back chamber 3-11, the fluid entering these two oil back chambers flows back to cabinets cavity 13 by the second breach 3-1-1 and the second spill port 6-5 again, the fluid flowing back to cabinets cavity 13 is again taken up by driven gear 3-5 and gets rid of on large bearing 3-3, thus form the circulating oil path of driven end, ensure that the lubrication effect of two large bearing 3-3.Large sealing cover forms two labyrinth seal systems of driven end respectively with the first oil sealing and the second oil sealing, guarantee that driven end there will not be leakage of oil, make driven end also have good sealing effect.
As Fig. 1 and Fig. 4, time in casing assembling process, the thickness of adjustment minipad 7, makes spiral bevel gear pair have rational contact area, and makes little bearing 2-4 have rational axial internal clearance; Adjust the thickness of large pad 5, more preferably spiral bevel gear pair sideshake can be obtained, simultaneously also guarantee that large bearing 3-3 has more suitably axial internal clearance, thus not only improve the transmission efficiency of gear, operating life reduce meshing noise, also improve the operating life of bearing.After casing is in place, because the upper end hanging 1-6 on casing and lower end are hung, 1-4 is fastened to be connected on bogie, driven shaft bearing 3-4 is fastened to be connected on axletree 4, and namely casing has three points to be fixed, more reliable, firm when casing is worked.
Driving shaft bearing 2-1, little sealing cover 2-7 and large sealing cover 3-1 are respectively equipped with first, second, and third opening tapped hole 2-1-1,2-7-1,3-10, the dismounting of these three parts can be facilitated, because after casing work a period of time, due to distortion or stand under load, be not easy to disassemble from casing, by corresponding opening tapped hole, just dismantlement work can be completed quickly and easily.
Claims (10)
1. a tram car gear drive, comprise upper box (1), lower box (6), active bearings seat assembly (2) and driven shaft bearing assembly (3), described upper box (1) and lower box (6) are fixedly connected into casing, described upper box (1) has upper wall inclined-plane (1-9), gear tank deck rank (1-10), first spill port (1-11) and small bearing bracket hole (1-13), described active bearings seat assembly (2) comprises little bearing (2-4), driving shaft bearing (2-1) and pinion shaft (2-2), described active bearings seat assembly (2) is contained in the small bearing bracket hole (1-13) of upper box (1), the large bearing saddle bore (3-13) of casing is jointly surrounded between described upper box (1) and lower box (6), described driven shaft bearing assembly (3) comprises large bearing (3-3), driven shaft bearing (3-4) and driven gear (3-5), described driven shaft bearing assembly (3) is contained on large bearing saddle bore (3-13), described pinion shaft (2-2) and driven gear (3-5) are helical bevel gear, and engage each other, the center line in small bearing bracket hole (1-13) and the central axis of large bearing saddle bore (3-13), it is characterized in that:
A, described upper box (1) also have oil-feed window (1-8), collection chamber (1-1), oil duct of draining the oil (1-12) and little oily window (1-5), described upper wall inclined-plane (1-9) extends to oil-feed window (1-8), oil-feed window (1-8) communicates with collection chamber (1-1), oil duct (1-12) of draining the oil communicates with collection chamber (1-1), the first purge cock (1-3) is equipped with in oil duct (1-12) of draining the oil outlet, described little oily window (1-5) is facing to active bearings seat assembly (2)
Cover plate (8) is equipped with at the top of b, described upper box (1), and cover plate (8) covers in collection chamber (1-1) open-topped top,
C, described active bearings seat assembly (2) also comprises flinger ring (2-6), seal ring (2-8), little sealing cover (2-7), first spacer (2-3) and the second spacer (2-5), and flinger ring (2-6), seal ring (2-8) and little sealing cover (2-7) three form the labyrinth seal system of drive end and form relief chamber (2-10), driving shaft bearing (2-1) has oil inlet hole (2-1-2) and oil-return groove (2-1-4), described little sealing cover (2-7) has the first breach (2-7-2), first breach (2-7-2) is communicated with the first spill port (1-11) on oil-return groove (2-1-4) and upper box (1), first spill port (1-11) is communicated with cabinets cavity (13),
D, described driven shaft bearing assembly (3) also comprises large sealing cover (3-1), first oil sealing (3-2), second oil sealing (3-7) and setting sleeve (3-6), driven gear (3-5) interference is connected in driven shaft bearing (3-4), described large sealing cover (3-1) respectively with the first oil sealing (3-2), second oil sealing (3-7) forms the labyrinth seal system of two driven ends, the labyrinth seal system of this driven end has little oil back chamber (3-11) and large oil back chamber (3-12), large sealing cover (3-1) has the second breach (3-1-1), second breach (3-1-1) is communicated with the second spill port (6-5) on lower box (6), second spill port (6-5) is communicated with cabinets cavity (13),
One end of e, described driven shaft bearing (3-4) has initiatively contrate gear (3-4-3), matching hole (3-4-2) and the first positioning pin hole (3-4-1), periphery tool first step (3-4-4), second step (3-4-5), the other end has handle hole (3-4-8) and the first bolt hole (3-4-6), be communicated with by center hole (3-4-7) between described matching hole (3-4-2) with handle hole (3-4-8)
F, described upper box (1) are upper and the outer end place being positioned at small bearing bracket hole (1-13) is provided with upper end hanging (1-6) and lower end hanging (1-4), and the center three of the lifting hole(eyelet) center of described upper end hanging (1-6), the lifting hole(eyelet) center of lower end hanging (1-6) and bearing saddle bore (3-13) is greatly angular distribution.
2. tram car gear drive according to claim 1, is characterized in that: described lower box (6) is provided with large oily window (6-3) and the second purge cock (6-4).
3. tram car gear drive according to claim 1, it is characterized in that: between described driving shaft bearing (2-1) and small bearing bracket hole (1-13) exterior edge face of upper box (1), minipad (7) is installed, large pad (5) is installed between the exterior edge face of described large sealing cover (3-1) and large bearing saddle bore (3-13).
4. tram car gear drive according to claim 1, it is characterized in that: described lower box (6) and upper box (1) are fastenedly connected by the 4th bolt (6-1) and the 5th bolt (6-2), and the first taper pin (11) location of bi-side is positioned at by two, upper box (1) top has depression (1-14), in depression (1-14), Ventilated cap (10) is housed, and Ventilated cap (10) top is lower than the end face of casing, side does not exceed the side of casing.
5. tram car gear drive according to claim 1, it is characterized in that: described upper box (1) is also equipped with nameplate (1-2), have auxiliary hole (1-7), inclination angle theta 1 between the upper wall inclined-plane (1-9) of described upper box (1) and horizontal plane is 15 ° ~ 30 °, and the angle θ 2 between upper box (1) mold joint and small bearing bracket hole (1-13) center line is 30 ° ~ 45 °.
6. tram car gear drive according to claim 1, it is characterized in that: described active bearings seat assembly (2) is fixed on upper box (1) by the second bolt (2-9), two little bearings (2-4) on described pinion shaft (2-2) are positioned by the first spacer (2-3) and the second spacer (2-5) respectively, described driving shaft bearing (2-1) has two the first opening tapped holes (2-1-1), described little sealing cover (2-7) has two the second opening tapped holes (2-7-1).
7. tram car gear drive according to claim 1, it is characterized in that: described driving shaft bearing (2-1) also has little oily window oilhole (2-1-3), little oily window oilhole (2-1-3) communicates with driving shaft bearing (2-1) inner chamber, and the position of little oily window oilhole (2-1-3) is corresponding to the little oily window (1-5) on upper box (1).
8. tram car gear drive according to claim 1, it is characterized in that: described large sealing cover (3-1) has two, lay respectively at the two ends of driven shaft bearing (3-4), large sealing cover (3-1) has two the 3rd opening tapped holes (3-10), described large bearing saddle bore (3-13) also has two, be distributed in the left and right sides of casing, described driven shaft bearing assembly (3) is fixedly connected on casing by the 3rd bolt (3-9), described second oil sealing (3-7) is fastenedly connected in driven shaft bearing (3-4) with coordinating of the first bolt hole (3-4-6) by the first bolt (3-8).
9. tram car gear drive according to claim 1, it is characterized in that: the end face of a large sealing cover (3-1) and the first oil sealing (3-2) offsets with a side end face of corresponding large bearing (3-3), and the opposite side end face of this large bearing (3-3) and first step (3-4-4) offset; The end face of another large sealing cover (3-1) and the second oil sealing (3-7) offsets with another corresponding large bearing (3-3), and this another positioned by setting sleeve (3-6) between large bearing (3-3) and driven gear (3-5), driven gear (3-5) and second step (3-4-5) offset.
10. tram car gear drive according to claim 1, it is characterized in that: described cover plate (8) is contained in collection chamber (1-1) top of upper box (1) by the 6th bolt (9), is also located by the second taper pin (12) between cover plate (8) and upper box (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410776218.6A CN104500700B (en) | 2014-12-17 | 2014-12-17 | Streetcar gear transmission device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410776218.6A CN104500700B (en) | 2014-12-17 | 2014-12-17 | Streetcar gear transmission device |
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| CN104500700B CN104500700B (en) | 2017-01-11 |
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| CN108071774A (en) * | 2016-11-16 | 2018-05-25 | 常州市瑞泰工程机械有限公司 | A kind of hydraulic drive gear case |
| CN109538749A (en) * | 2018-11-26 | 2019-03-29 | 陕西海力特精密机械有限公司 | Adjustment structure for bevel gear back lash |
| CN110513467A (en) * | 2019-09-06 | 2019-11-29 | 深圳臻宇新能源动力科技有限公司 | Dual-clutch transmission and vehicle with it |
| CN112943864A (en) * | 2021-02-03 | 2021-06-11 | 银川威力传动技术股份有限公司 | Conical worm mechanism and adjusting method |
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| EP1602861A1 (en) * | 2003-03-10 | 2005-12-07 | Yanmar Co., Ltd. | Baffle plate and transmission |
| JP2010265988A (en) * | 2009-05-14 | 2010-11-25 | Caterpillar Sarl | Reduction gear |
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| CN110513467A (en) * | 2019-09-06 | 2019-11-29 | 深圳臻宇新能源动力科技有限公司 | Dual-clutch transmission and vehicle with it |
| CN112943864A (en) * | 2021-02-03 | 2021-06-11 | 银川威力传动技术股份有限公司 | Conical worm mechanism and adjusting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104500700B (en) | 2017-01-11 |
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