CN104500700B - Streetcar gear transmission device - Google Patents
Streetcar gear transmission device Download PDFInfo
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- CN104500700B CN104500700B CN201410776218.6A CN201410776218A CN104500700B CN 104500700 B CN104500700 B CN 104500700B CN 201410776218 A CN201410776218 A CN 201410776218A CN 104500700 B CN104500700 B CN 104500700B
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- bearing
- sealing
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- 230000005540 biological transmission Effects 0.000 title abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 69
- 210000003027 Ear, Inner Anatomy 0.000 claims description 11
- 230000000875 corresponding Effects 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 10
- 230000023298 conjugation with cellular fusion Effects 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 7
- 238000010926 purge Methods 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 230000021037 unidirectional conjugation Effects 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005461 lubrication Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 68
- 239000012530 fluid Substances 0.000 description 21
- 230000001808 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 210000003128 Head Anatomy 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000010724 circulating oil Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000037250 Clearance Effects 0.000 description 1
- 230000035512 clearance Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 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
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 the gear drive in a kind of vehicle drive system, especially low-floor tramcar drive system.
Background technology
Low-floor tramcar is a kind of boom town rail traffic vehicles between light rail and subway, has the advantage of uniqueness, and wherein gear train assembly is the core of low-floor tramcar.nullThe disclosedest 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，Use independent wheelset，Wherein motor is vertical with wheel direction of advance with the layout of gear-box，And the existing patent for this kind of light rail car gear drive is CN 203717849 U: a kind of First-stage spiral bevel gear transmission device，This gear drive outfan is connected with wheel coupling by a shaft coupling，Drive end uses the Helical Bevel Gear of band offset with driven end，Achieve the transmission in vertical direction of motion and moment of torsion，Also reduce the center of gravity of whole casing，But this gear drive has following deficiency: the big bearing block of (1) outfan 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 intended oil-collecting effect，If connecting insecure may falling in casing on the contrary，Cause safe thing，Therefore job security is reduced；(2) adjustment pad is not designed between pinion shaft assembly and casing, adjustment pad the most it is not provided with between the big end cap of outfan and casing, if accessory size processing is not in place, possibly cannot obtain preferable 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 gear and the working life of bearing；(3) erecting by overhang exceeds casing a lot, and whole pinion gear structure is the compactest, and on casing, only one of which erecting by overhang fixes, and the stability installing rear box is bad；(4) not it is observed that fluid situation of change within small bearing bracket.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, spaces compact, the tramcar gear drive of be connected firmly, have good lubrication and sealing effectiveness.
nullIn order to achieve the above object，The technical scheme is that a kind of tramcar gear drive，Including upper box、Lower box、Active bearings seat assembly and driven shaft bearing assembly，Described upper box and lower box are fixedly connected into casing，There is on described upper box upper wall inclined-plane、Gear tank deck rank、First spill port and small bearing bracket hole，Described active bearings seat assembly includes 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 big bearing saddle bore of casing is jointly surrounded between described upper box and lower box，Described driven shaft bearing assembly includes big bearing、Driven shaft bearing and driven gear，Described driven shaft bearing assembly is contained on big bearing saddle bore，Described pinion shaft and driven gear are spiral bevel gear，And engage each other，The centrage in small bearing bracket hole and the central axis of big bearing saddle bore，Described upper box also has oil-feed window、Collection chamber、Drain the oil oil duct and little oil 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，Drain the oil oil passage outlet equipped with the first purge cock，Described little oil window is facing to active bearings seat assembly，The top of described upper box is equipped with cover plate，Cover plate covers above collection chamber is open-topped，Described active bearings seat assembly also includes oil scraper ring、Sealing ring、Little sealing is covered、First spacer and the second spacer，And oil scraper ring、Sealing ring and little sealing lid three form the labyrinth seal system of drive end and form relief chamber，Fuel feed hole and oil-recovery tank is had in driving shaft bearing，Described little sealing lid has the first breach，First breach connects with the first spill port on oil-recovery tank and upper box，First spill port connects with cabinets cavity,Described driven shaft bearing assembly also includes sealing greatly lid、First oil sealing、Second oil sealing and positioning sleeve，Driven gear interference is connected in driven shaft bearing，Described big seal lid respectively with the first oil sealing、Second oil sealing constitutes the labyrinth seal system of two driven ends，The labyrinth seal system of this driven end has little oil back chamber and big oil back chamber，Big sealing covers and has the second breach，Second breach connects with the second spill port on lower box，Second spill port connects with cabinets cavity，One end of described driven shaft bearing has actively contrate gear、Mating holes and the first dowel hole，Periphery tool first step、Second step，The other end has handle hole and the first bolt hole，Connected by centre bore between described mating holes and handle hole，On described upper box and be positioned at the outer end in small bearing bracket hole be provided with upper end hanging and lower end hang，The lifting hole(eyelet) center of described upper end hanging、The lifting hole(eyelet) center of lower end hanging and the center three of big bearing saddle bore are angular distribution.
Described lower box is provided with big oil window and the second purge cock.
Minipad is installed between the small bearing bracket outer end of hole face of described driving shaft bearing and upper box, between the described big outer face sealing lid and big bearing saddle bore, big pad is installed.
Described lower box is fastenedly connected by the 4th bolt and the 5th bolt with upper box, and positioned by two the first taper bolts being positioned at two sides, upper box top has depression, equipped with Ventilated cap in depression, and Ventilated cap top is less than the end face of casing, side is without departing from the side of casing.
Described upper box is also equipped with nameplate, has fabrication hole, and the inclination angle theta 1 between upper wall inclined-plane and the horizontal plane of described upper box is 15 °～30 °, and the angle, θ 2 between upper box die 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, having two the first opening screwed holes in described driving shaft bearing, described little sealing covers and has two the second opening screwed holes.
Also having little oil window oilhole in described driving shaft bearing, little oil window oilhole communicates with driving shaft bearing inner chamber, and the position of little oil window oilhole is corresponding to the little oil window on upper box.
Described big sealing is stamped two, lay respectively at the two ends of driven shaft bearing, big sealing covers and has two the 3rd opening screwed holes, described big bearing saddle bore also has two, it is 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 by the first bolt and the cooperation of the first bolt hole.
One big sealing lid and the end face of the first oil sealing offset with a side end face of corresponding big bearing, and the opposite side end face of this big bearing offsets with first step；Another is big seals lid and end face of the second oil sealing offsets with another corresponding big bearing, and this another positioned by positioning sleeve between big bearing and driven gear, driven gear offsets with second step.
Described cover plate is contained in above the collection chamber of upper box by the 6th bolt, also by the second taper bolt 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, i.e. 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 being arranged on casing is without departing from box portion, has the feature of simple in construction, spaces compact；
2) on casing, it is provided with rationally effective oil-feed oil circuit and oil return circuit, and is provided with suitable sealing system at drive end and driven end, it is ensured that drive end and there is good lubrication and sealing effectiveness from low end office (EO)；
3) whole casing has three places to be fastenedly connected, and upper end hanging, lower end hanging and driven shaft bearing are connected on bogie and axletree by fastening respectively, and the casing making installation put in place has more preferable functional reliability and stability；
4) by adjusting minipad and the thickness of big pad, preferable bolt bevel gear pair meshing backlass and more reasonably contact area can be obtained, it is also possible that little bearing and big bearing have more suitably end-play, thus improve gear-driven efficiency, reduce meshing noise, and be effectively improved the working life of gear and bearing；
5) it is provided with little oil window at casing drive end, it is possible to observe the situation of change of driving shaft bearing interior oil liquid, it is simple to monitoring lubrication in time is the most normal, it addition, remove the cover plate above collection chamber, active bearings seat assembly inner case can be checked, when occurring abnormal, it is simple to find problem place in time；
6) cover all have opening screwed hole in driving shaft bearing, little sealing lid and big sealing, 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 be given below in conjunction with accompanying drawing.
Fig. 1 is the structural front view of the tramcar 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 full sectional view of the driven shaft bearing in the present invention.
Detailed description of the invention
nullAs shown in Fig. 1～8，The tramcar gear drive of the present invention，Including 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，There is on described upper box 1 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 includes 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 big 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 includes big bearing 3-3、Driven shaft bearing 3-4 and driven gear 3-5，Described driven shaft bearing assembly 3 is contained on big bearing saddle bore 3-13，Described pinion shaft 2-2 and driven gear 3-5 is spiral bevel gear，And engage each other，The centrage of small bearing bracket hole 1-13 and the central axis of big bearing saddle bore 3-13，Distance d of the centrage offseting small bearing bracket hole 1-13 under the centrage of big 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 oil 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 oil duct 1-12 that drains the oil exports equipped with the first purge cock 1-3，Described little oil window 1-5 is facing to active bearings seat assembly 2，The top of described upper box 1 is equipped with cover plate 8，Cover plate 8 covers above collection chamber 1-1 is open-topped，Described active bearings seat assembly 2 also includes oil scraper ring 2-6、Sealing ring 2-8、Little sealing covers 2-7、First spacer 2-3 and the second spacer 2-5，And oil scraper ring 2-6、Sealing ring 2-8 and little sealing lid 2-7 three form the labyrinth seal system of drive end and form relief chamber 2-10，Fuel feed hole 2-1-2 and oil-recovery tank 2-1-4 is had in driving shaft bearing 2-1，The described little lid 2-7 that seals has the first breach 2-7-2，The first spill port 1-11 on first breach 2-7-2 and oil-recovery tank 2-1-4 and upper box 1 connects，First spill port 1-11 connects with cabinets cavity 13，Described driven shaft bearing assembly 3 also includes sealing greatly lid 3-1、First oil sealing 3-2、Second oil sealing 3-7 and positioning sleeve 3-6，Driven gear 3-5 interference is connected in driven shaft bearing 3-4，Described big seal lid 3-1 respectively with the first oil sealing 3-2、Second oil sealing 3-7 constitutes the labyrinth seal system of two driven ends，The labyrinth seal system of this driven end has little oil back chamber 3-11 and big oil back chamber 3-12，Big sealing has the second breach 3-1-1 on lid 3-1，Second breach 3-1-1 connects with the second spill port 6-5 on lower box 6，Second spill port 6-5 connects with cabinets cavity 13，One end of described driven shaft bearing 3-4 has actively contrate gear 3-4-3、Mating holes 3-4-2 and the first dowel 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，Connected by centre bore 3-4-7 between described mating holes 3-4-2 and handle hole 3-4-8，On described upper box 1 and be positioned at the outer end of small bearing bracket hole 1-13 be 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 big bearing saddle bore 3-13 are angular distribution.
As it is shown in figure 1, described lower box 6 is provided with big oil window 6-3 and the second purge cock 6-4.
Such as Fig. 4, shown in 7, minipad 7 is installed between the 1-13 outer face, small bearing bracket hole of described driving shaft bearing 2-1 and upper box 1, between the described big outer face sealing lid 3-1 and big bearing saddle bore 3-13, big 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 positioned by two the first taper bolts 11 being positioned at two sides, upper box 1 top has depression 1-14, equipped with Ventilated cap 10 in depression 1-14, and Ventilated cap 10 top is less than the end face of casing, side is without departing from the side of casing.
As shown in Figure 1, 2, described upper box 1 is also equipped with nameplate 1-2, have fabrication hole 1-7, such as Fig. 5, shown in 1, inclination angle theta 1 between upper wall inclined-plane 1-9 and the horizontal plane of described upper box 1 is 15 °～30 °, and the angle, θ 2 between upper box 1 die joint and small bearing bracket hole 1-13 centrage 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 little bearing 2-4 on described pinion shaft 2-2 are positioned by the first spacer 2-3 and the second spacer 2-5 respectively, having two the first opening screwed hole 2-1-1 in described driving shaft bearing 2-1, described little sealing has two the second opening screwed hole 2-7-1 on lid 2-7.
Such as Fig. 5, shown in 1, described driving shaft bearing 2-1 also having little oil window oilhole 2-1-3, little oil window oilhole 2-1-3 and communicates with driving shaft bearing 2-1 inner chamber, the position of little oil 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, the described big lid 3-1 that seals has two, lay respectively at the two ends of driven shaft bearing 3-4, big sealing has two the 3rd opening screwed hole 3-10 on lid 3-1, described big bearing saddle bore 3-13 also has two, being 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 in driven shaft bearing 3-4 by the first bolt 3-8 and the cooperation of the first bolt hole 3-4-6.
As shown in Figure 7,8, a big end face sealing lid 3-1 and the first oil sealing 3-2 offsets with a side end face of corresponding big bearing 3-3, and the opposite side end face of this big bearing 3-3 offsets with first step 3-4-4；Another big seal lid 3-1 and the second oil sealing 3-7 end face offset with another corresponding big bearing 3-3, and this another positioned by positioning sleeve 3-6 between big bearing 3-3 and driven gear 3-5, driven gear 3-5 offsets with second step 3-4-5.
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, positions also by the second taper bolt 12 between cover plate 8 and upper box 1.
Such as Fig. 8, shown in 4, when the present invention is installed on vehicle, described driven shaft bearing 3-4 is corresponding with the second dowel hole 4-2 on axletree 4 by the first dowel hole 3-4-1, actively 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 mating holes 3-4-2, moving axis bearing 3-4, by the centre bore 3-4-7 of driven shaft bearing 3-4, is fastenedly connected on axletree 4 by king-bolt 4-3.
Such as Fig. 5, shown in 6, the tramcar gear drive drive end greasing of the present invention is as follows: motor driving pinion axle 2-2 rotates, pinion shaft 2-2 engages each other with driven gear 3-5, 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 drain oil-collecting, the fluid being thrown to upper wall inclined-plane 1-9 is entered at the fuel feed hole 2-1-2 of driving shaft bearing 2-1 top by drain, a part is directly dumped into oil-feed window 1-8 and falls at fuel feed hole 2-1-2, sub-fraction fluid is also had to be thrown to oil-feed window 1-8, fall into again in collection chamber 1-1.null(note: driven gear 3-5 is dumped into oil-feed window 1-8 fluid when rotating forward is slightly smaller，The fluid being dumped into oil-feed window 1-8 during reversion is more，But it is drained to the fluid amount of fuel feed hole 2-1-2 more than the oil mass flowing into fuel feed hole 2-1-2 during reversion through upper wall inclined-plane 1-9 from upper wall inclined-plane 1-9 when rotating forward，Therefore the fluid total amount difference flowing into driving shaft bearing 2-1 top fuel feed hole 2-1-2 during rotating is little)，Fall into the fluid at fuel feed hole 2-1-2 and flow into driving shaft bearing 2-1 inner chamber，Owing to upper box 1 is provided with gear tank deck rank 1-10，Avoid the fluid in driving shaft bearing 2-1 inner chamber near the little bearing 2-4 of gear position, flow into casing，Guarantee that driving shaft bearing 2-1 inner chamber has enough fluid，Two little bearing 2-4 are lubricated，And it is so that fluid flows through the little bearing 2-4 near axle head，Enter back into relief chamber 2-10，Enter the fluid of relief chamber 2-10 again from the first breach 2-7-2、Oil-recovery tank 2-1-4 flows into the first spill port 1-11，Finally flow back to cabinets cavity 13，Flow back to the fluid of cabinets cavity 13 again stirred by driven gear 3-5 and be thrown to upper wall inclined-plane 1-9 and get rid of into oil-feed window 1-8，Constitute the circulating oil path of drive end，Ensure that the lubricant effect of two little bearing 2-4.It addition, the labyrinth seal system being made up of little sealing lid 2-7, oil scraper ring 2-6 and sealing ring 2-8 has good sealing effectiveness, it is ensured that drive end does not haves oil leakage phenomenon.
Driving shaft bearing 2-1 is provided with little oil window oilhole 2-1-3, coordinates with the little oil window 1-5 of upper box 1, can observe the situation of change of fluid in driving shaft bearing 2-1 inner chamber by little oil window 1-5.Upper box 1 is additionally provided with collection chamber 1-1, collection chamber 1-1 and communicates with oil-feed window 1-8, the oil duct 1-12 and the first spill port 1-11 that drains the oil simultaneously, and therefore, gear pair falls into the fluid of collection chamber 1-1 when running, also can flow back to cabinets cavity 13.One of purpose of collection chamber 1-1 is when drive end lubricant effect is bad, directly from collection chamber 1-1, fluid is added the fuel feed hole 2-1-2 of driving shaft bearing 2-1, ensure that drive end has enough lubricating oils, another one purpose, it is that active bearings seat assembly 2 is when occurring abnormal, inner case can also be checked by collection chamber 1-1, i.e. there is the effect of observation window, and casing need not be disassembled from axletree 4.By the first purge cock 1-3 of upper box 1, it is possible to the remaining fluid of collection chamber 1-1 is all released.
As shown in Figure 7, the tramcar gear drive driven end greasing of the present invention is as follows: when driven gear 3-5 rotates, the fluid that the gear teeth agitation of driven gear 3-5 splashes falls at the roller clearance of two big bearing 3-3, and converge inflow big oil back chamber 3-12 and little oil back chamber 3-11, the fluid entering the two oil back chamber flows back to cabinets cavity 13 further through the second breach 3-1-1 and the second spill port 6-5, flow back to the fluid of cabinets cavity 13 again taken up by driven gear 3-5 and get rid of on big bearing 3-3, thus constitute the circulating oil path of driven end, ensure that the lubricant effect of two big bearing 3-3.The big lid that seals forms two labyrinth seal systems of driven end with the first oil sealing and the second oil sealing respectively, it is ensured that driven end does not haves leakage of oil, makes driven end have good sealing effectiveness yet.
Such as Fig. 1 and Fig. 4, time in casing assembling process, adjust the thickness of minipad 7 so that spiral bevel gear pair has rational contact area, and makes little bearing 2-4 have rational end-play；Adjust the thickness of big pad 5, it is obtained in that more preferably spiral bevel gear pair sideshake, also ensure that big bearing 3-3 has more suitably end-play simultaneously, thus not only improve the transmission efficiency of gear, working life and reduce meshing noise, also improve the working life of bearing.Being installed by casing after putting in place, hang 1-6 and lower end hanging 1-4 due to the upper end on casing and be fastenedly connected on bogie, driven shaft bearing 3-4 is fastenedly connected on axletree 4, i.e. casing has three points to be fixed so that relatively reliable during casing work, firm.
It is respectively equipped with first, second, and third opening screwed hole 2-1-1,2-7-1,3-10 on lid 3-1 driving shaft bearing 2-1, little sealing lid 2-7 and big sealing, the dismounting of these three part can be facilitated, because casing works after a period of time, due to deformation or stand under load, it is not easy to disassemble from casing, by corresponding opening screwed hole, dismantlement work just can be completed conveniently and efficiently.
Claims (10)
- null1. a tramcar gear drive，Including 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，There is on described upper box (1) 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) includes 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 big 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) includes big bearing (3-3)、Driven shaft bearing (3-4) and driven gear (3-5)，Described driven shaft bearing assembly (3) is contained on big bearing saddle bore (3-13)，Described pinion shaft (2-2) and driven gear (3-5) are spiral bevel gear，And engage each other，The centrage in small bearing bracket hole (1-13) and the central axis of big 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 oil 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), oil duct (1-12) of draining the oil exports equipped with the first purge cock (1-3), described little oil window (1-5) is facing to active bearings seat assembly (2)B, the top of described upper box (1) are covered at collection chamber (1-1) equipped with cover plate (8), cover plate (8) Open-topped top,C, described active bearings seat assembly (2) also includes oil scraper ring (2-6), sealing ring (2-8), little sealing covers (2-7), first spacer (2-3) and the second spacer (2-5), and oil scraper ring (2-6), sealing ring (2-8) and little sealing lid (2-7) three form the labyrinth seal system of drive end and form relief chamber (2-10), fuel feed hole (2-1-2) and oil-recovery tank (2-1-4) is had in driving shaft bearing (2-1), the described little lid (2-7) that seals has the first breach (2-7-2), first breach (2-7-2) connects with the first spill port (1-11) on oil-recovery tank (2-1-4) and upper box (1), first spill port (1-11) connects with cabinets cavity (13),D, described driven shaft bearing assembly (3) also includes sealing greatly lid (3-1), first oil sealing (3-2), second oil sealing (3-7) and positioning sleeve (3-6), driven gear (3-5) interference is connected in driven shaft bearing (3-4), described big seal lid (3-1) respectively with the first oil sealing (3-2), second oil sealing (3-7) constitutes the labyrinth seal system of two driven ends, the labyrinth seal system of this driven end has little oil back chamber (3-11) and big oil back chamber (3-12), seal greatly and on lid (3-1), have the second breach (3-1-1), second breach (3-1-1) connects with the second spill port (6-5) on lower box (6), second spill port (6-5) connects with cabinets cavity (13),E, one end of described driven shaft bearing (3-4) have actively contrate gear (3-4-3), mating holes (3-4-2) and the first dowel 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), connected by centre bore (3-4-7) between described mating holes (3-4-2) with handle hole (3-4-8)F, described upper box (1) are upper and be positioned at the outer end of small bearing bracket hole (1-13) and be provided with upper end hanging (1-6) and lower end and hang (1-4), and the center three of the hanging lifting hole(eyelet) center of (1-6), described upper end, the lifting hole(eyelet) center of lower end hanging (1-6) and bearing saddle bore (3-13) greatly is angular distribution.
- Tramcar gear drive the most according to claim 1, it is characterised in that: described lower box (6) is provided with big oil window (6-3) and the second purge cock (6-4).
- Tramcar gear drive the most according to claim 1, it is characterized in that: be provided with minipad (7) between described driving shaft bearing (2-1) and small bearing bracket hole (1-13) outer face of upper box (1), described big sealing is provided with big pad (5) between lid (3-1) and the outer face of big bearing saddle bore (3-13).
- Tramcar gear drive the most according to claim 1, it is characterized in that: described lower box (6) is fastenedly connected by the 4th bolt (6-1) and the 5th bolt (6-2) with upper box (1), and positioned by two the first taper bolts (11) being positioned at two sides, upper box (1) top has depression (1-14), equipped with Ventilated cap (10) in depression (1-14), and Ventilated cap (10) top is less than the end face of casing, side is without departing from the side of casing.
- Tramcar gear drive the most according to claim 1, it is characterized in that: described upper box (1) is also equipped with nameplate (1-2), have fabrication hole (1-7), inclination angle theta 1 between upper wall inclined-plane (1-9) and the horizontal plane of described upper box (1) is 15 °～30 °, and the angle, θ 2 between upper box (1) die joint and small bearing bracket hole (1-13) centrage is 30 °～45 °.
- Tramcar gear drive the most 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, having two the first opening screwed holes (2-1-1) on described driving shaft bearing (2-1), described little sealing has two the second opening screwed holes (2-7-1) on lid (2-7).
- Tramcar gear drive the most according to claim 1, it is characterized in that: on described driving shaft bearing (2-1), also have little oil window oilhole (2-1-3), little oil window oilhole (2-1-3) communicates with driving shaft bearing (2-1) inner chamber, and the position of little oil window oilhole (2-1-3) is corresponding to little oil window (1-5) on upper box (1).
- Tramcar gear drive the most according to claim 1, it is characterized in that: the described big lid (3-1) that seals has two, lay respectively at the two ends of driven shaft bearing (3-4), seal greatly and on lid (3-1), have two the 3rd opening screwed holes (3-10), described big bearing saddle bore (3-13) also has two, it is 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).
- Tramcar gear drive the most according to claim 1, it is characterized in that: big sealing lid (3-1) and the end face of the first oil sealing (3-2) offset with a side end face of corresponding big bearing (3-3), and the opposite side end face of this big bearing (3-3) offsets with first step (3-4-4)；Another big end face sealing lid (3-1) and the second oil sealing (3-7) offsets with another corresponding big bearing (3-3), and this another positioned by positioning sleeve (3-6) between big bearing (3-3) and driven gear (3-5), driven gear (3-5) offsets with second step (3-4-5).
- Tramcar gear drive the most 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), positions also by the second taper bolt (12) between cover plate (8) and upper box (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 true CN104500700B (en) | 2017-01-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1602861B1 (en) * | 2003-03-10 | 2012-05-23 | Yanmar Co., Ltd. | Baffle plate and transmission |
| JP2010265988A (en) * | 2009-05-14 | 2010-11-25 | Caterpillar Sarl | Reduction gear |
| CN102494115B (en) * | 2011-11-29 | 2017-05-17 | 南车株洲电力机车有限公司 | Bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle |
| JP5820741B2 (en) * | 2012-02-23 | 2015-11-24 | 株式会社クボタ | Engine transmission case sealing device |
| CN204387267U (en) * | 2014-12-17 | 2015-06-10 | 常州市瑞泰工程机械有限公司 | A kind of tram car gear drive |
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Effective date of registration: 20170720 Address after: 213011 No. 99 Wuyi Road, Jiangsu, Changzhou, China Co-patentee after: CRRC QISHUYAN INSTITUTE CO., LTD. Patentee after: Changzhou Ruitai Engineering Machinery Co., Ltd. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 99, No. Patentee before: Changzhou Ruitai Engineering Machinery Co., Ltd. |
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Address after: 213011 No.99, Wuyi Road, Changzhou City, Jiangsu Province Patentee after: Changzhou CRRC Ruitai Equipment Technology Co.,Ltd. Patentee after: CRRC Qishuyan Locomotive and rolling stock Technology Research Institute Co., Ltd Address before: 213011 No.99, Wuyi Road, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU RUITAI ENGINEERING MACHINERY Co.,Ltd. Patentee before: CRRC Qishuyan Locomotive and rolling stock Technology Research Institute Co., Ltd |
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