CN108547937A - A kind of gear train assembly and low-floor light rail vehicle - Google Patents
A kind of gear train assembly and low-floor light rail vehicle Download PDFInfo
- Publication number
- CN108547937A CN108547937A CN201810747432.7A CN201810747432A CN108547937A CN 108547937 A CN108547937 A CN 108547937A CN 201810747432 A CN201810747432 A CN 201810747432A CN 108547937 A CN108547937 A CN 108547937A
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- Prior art keywords
- gear
- shaft
- lid
- face
- gear train
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- 238000007789 sealing Methods 0.000 claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims description 37
- 238000013459 approach Methods 0.000 claims description 18
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims 1
- 238000004945 emulsification Methods 0.000 abstract description 5
- 239000000314 lubricant Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 14
- 239000010687 lubricating oil Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003305 oil spill Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 239000000052 vinegar 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
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Details Of Gearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The present invention relates to technical field of transmission, a kind of gear train assembly and low-floor light rail vehicle are provided.Gear train assembly provided by the invention is provided with the second sealing mechanism between output shaft and gear housing.Second sealing mechanism includes first bearing seat, sealing ring, the first end cover, inner sealing lid, multipurpose lid and the first V-type circle, and first bearing seat, sealing ring and inner sealing lid are formed with anti-water maze and backwater cavity for preventing water from entering gear housing, causing emulsification of lubricant；First end cover, inner sealing lid and multipurpose lid are formed with the leakproof labyrinth for preventing oil leakage and oil back chamber；It is additionally provided with the problem of anti-water maze and leakproof labyrinth are isolated, water further prevented to enter gear housing and oil leakage by the first V-type circle simultaneously, meets the use demand of low-floor light rail vehicle.
Description
Technical field
The present invention relates to drive technology fields, in particular to a kind of gear train assembly and low-floor light rail vehicle.
Background technology
Low-floor light rail vehicle is a kind of common rail traffic method of operation, and gear-box is its critical component, plays transmission
Motor torque and rotating speed drive the effect of wheel, are generally transmitted using vertical axis, are two-stage spiral bevel gear drive system structure.
100% low-floor light rail vehicle bogie type is various, it eliminates traditional axle, and generally use gear-box is directly connected to wheel
Mode be driven.The connection of gear-box and wheel, should be reliable and stable, easy to disassemble again and inspection.
Low-floor light rail vehicle frequently encounters the weather such as sleet in ground handling, and gear box lubricating oil easily emulsifies,
It is higher to the sealing waterproof performance requirement of gear-box.Using the gear-box of existing labyrinth seal structure, this is had been unable to meet
It is required that need to use one kind that can prevent the combination sealing mode that internal lubrication oil spill goes out and prevents external water from entering gear-box,
It can solve existing issue.
Invention content
It is an object of the present invention to provide a kind of gear train assemblies, in the prior art existing above-mentioned to improve
Problem meets the use demand of low-floor light rail vehicle.
It is another object of the present invention to provide a kind of low-floor light rail vehicles comprising above-mentioned gear train assembly.
What the embodiment of the present invention was realized in：
A kind of gear train assembly comprising gear housing, input shaft and output shaft；Input shaft is sequentially connected with output shaft
And it is respectively arranged in gear housing；The second sealing mechanism is provided between output shaft and gear housing；
Second sealing mechanism include first bearing seat, sealing ring, the first end cover, inner sealing lid, multipurpose lid and
First V-type circle；First bearing seat is fixedly connected with gear housing；Sealing ring is arranged between first bearing seat and output shaft；It is close
Envelope inner cover is fixedly connected in first bearing seat；Leakproof labyrinth is collectively formed in first bearing seat, sealing ring and inner sealing lid, and
The oil back chamber being connected to leakproof labyrinth；
Multipurpose lid is set in outside output shaft, and is fixedly connected with output shaft；First end cover is set in multipurpose lid
Outside, and with inner sealing lid it is fixedly connected；Anti- water maze is collectively formed in first end cover, inner sealing lid and multipurpose lid, and
The backwater cavity being connected to anti-water maze；
First V-type circle is arranged between inner sealing lid and multipurpose lid, for leakproof labyrinth to be isolated with anti-water maze.
In one embodiment of the invention：
Above-mentioned multipurpose lid includes sequentially connected first auxiliary section, the second auxiliary section and third auxiliary section in an axial direction, the
The radial dimension of two auxiliary sections is more than the radial dimension of the first auxiliary section, and the radial dimension of the first auxiliary section is more than third auxiliary section
Radial dimension；The peripheral surface of second auxiliary section is provided with waterproof protrusion；It is convex it to be provided with first in the first end face of inner sealing lid
It rises；
The end face of waterproof protrusion and the end face of the first protrusion approach cooperation, the first raised inner peripheral surface and the second auxiliary section
Peripheral surface approaches cooperation, forms anti-water maze.
In one embodiment of the invention：
Above-mentioned inner sealing lid has the second end face opposite with first end face, and the second protrusion is provided in second end face；It is close
Seal ring includes the third protrusion extended axially outwardly and the inwardly in the axial direction the 4th protrusion；The inner circumferential of second protrusion
The peripheral surface of face and third auxiliary section approaches cooperation, and the outer end face of the second raised inner face and sealing ring approaches cooperation, and second
The peripheral surface of protrusion and the inner peripheral surface of third protrusion approach cooperation, and end face and the second end face of third protrusion approach cooperation, formed
Leakproof labyrinth.
In one embodiment of the invention：
Above-mentioned output shaft includes hollow shaft and the inner shaft that is arranged in hollow shaft；Bellmouth is provided in hollow shaft, it is interior
The peripheral surface of axis is taper and the matched conical surface of bellmouth；Inner shaft is interference fitted by the conical surface and bellmouth, is used for inner shaft
It is fixedly connected in hollow shaft.
In one embodiment of the invention：
The first groove, the inner surface of the first groove and the outer surface of hollow shaft are provided on the inner face of above-mentioned multipurpose lid
Cooperation；Be provided with the second V-type circle between the inner peripheral surface of multipurpose lid and the peripheral surface of inner shaft, the peripheral surface of the second V-type circle with it is more
Clearance seal is formed between the inner peripheral surface of functional cover；The inner face of second V-type circle is abutted with the outer end face of hollow shaft.
In one embodiment of the invention：
It is further opened with the cylindrical hole being coaxially disposed with bellmouth in above-mentioned hollow shaft, is provided in inner shaft and cylindrical hole
Matched cylindrical shaft；The one end of cylindrical hole far from bellmouth is sealed by door, and door is fixedly connected with hollow shaft.
In one embodiment of the invention：
Said gear babinet includes gear-box ontology and gear box cover, and gear-box ontology removably connects with gear box cover
It connects；Gear box cover is arranged in the one end of output shaft far from the second sealing mechanism.
In one embodiment of the invention：
The first mounting hole is offered on said gear case lid, the position of the first mounting hole is corresponding with the position of output shaft；
Second end cover is installed, the second end cover and gear box cover are detachably connected at the first mounting hole.
In one embodiment of the invention：
Said gear transmission system further includes jackshaft；The axis of input shaft is vertical with jackshaft, input shaft and jackshaft
Between be sequentially connected by spiral bevel gear pair；The axis of jackshaft is parallel with the axis of output shaft, between jackshaft and output shaft
It is connected by secondary gear auxiliary driving.
A kind of low-floor light rail vehicle comprising above-mentioned gear train assembly.
The advantageous effect of the embodiment of the present invention includes：
The gear train assembly that the embodiment of the present invention provides comprising gear housing, input shaft and output shaft.Input shaft
The second sealing mechanism is provided in gear housing, between output shaft and gear housing with output shaft drive connection.Second sealing
Mechanism due to positioned at output shaft close to one end of wheel, the sealing performance of the second sealing mechanism is particularly important.Second sealing
Mechanism includes first bearing seat, sealing ring, the first end cover, inner sealing lid, multipurpose lid and the first V-type circle, first axle
Bearing, sealing ring and inner sealing lid be formed with for prevent water enter gear housing, cause the anti-water maze of emulsification of lubricant with
And backwater cavity；First end cover, inner sealing lid and multipurpose lid are formed with the leakproof labyrinth for preventing oil leakage and return
Oil pocket；It is additionally provided with the first V-type circle simultaneously anti-water maze and leakproof labyrinth are isolated, water has been further prevented to enter gear housing
And the problem of oil leakage, meet the use demand of low-floor light rail vehicle.
The low-floor light rail vehicle that the embodiment of the present invention provides, including above-mentioned gear train assembly, therefore also there is energy
Enough prevent gear housing water inlet or oil leak, the advantageous effect satisfied the use demand.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is overall structure diagram of the gear train assembly that provides of the embodiment of the present invention 1 under the first visual angle；
Fig. 2 is the cross-sectional view at II-II place in Fig. 1；
Fig. 3 is overall structure diagram of the gear train assembly that provides of the embodiment of the present invention 1 under the second visual angle；
Fig. 4 is the partial enlargement structural representation at IV in Fig. 2；
Fig. 5 is the partial enlargement structural representation at V in Fig. 2；
Fig. 6 is the structural schematic diagram of multipurpose lid in the gear train assembly that the embodiment of the present invention 1 provides；
Fig. 7 is the structural schematic diagram of inner sealing lid in the gear train assembly that the embodiment of the present invention 1 provides；
Fig. 8 is the structural schematic diagram of first bearing seat in the gear train assembly that the embodiment of the present invention 1 provides；
Fig. 9 is the structural schematic diagram of sealing ring in the gear train assembly that the embodiment of the present invention 1 provides；
Figure 10 is the partial structural diagram for the gear train assembly that the embodiment of the present invention 2 provides.
Icon：010- gear train assemblies；100- gear housings；110- gear-box ontologies；111- lifting lugs；112- sunpenders；
113- observation windows；114- refueling bolts；115- oil discharge screws；120- gear box covers；121- breathers；122- oil level forms；
200- input shafts；The first sealing mechanisms of 210-；220- second bearing seats；230- spacer rings；240- axial direction baffle rings；250- active spiral shell umbrellas
Gear；The first cylinder roller bearings of 261-；The second cylinder roller bearings of 262-；263- ball bearings；300- jackshafts；310- covers
Cylinder；The driven spiral bevel gears of 320-；330- active cylindric spiral gears；340- 3rd bearing seats；350- third end covers；360-
Four end covers；400- output shafts；410- hollow shafts；411- bellmouths；412- cylindrical holes；413- doors；The 4th axis of 414-
Bearing；The second end covers of 415-；The driven cylindric spiral gears of 416-；420- inner shafts；The second sealing mechanisms of 500-；510- first axles
Bearing；511- third grooves；520- sealing rings；521- third protrusions；The 4th protrusions of 522-；The first end covers of 530-；540-
Inner sealing lid；541- first end faces；542- second end faces；The second grooves of 543-；The first protrusions of 544-；The second protrusions of 545-；
550- multipurpose lids；The first auxiliary sections 551-；The second auxiliary sections 552-；553- thirds auxiliary section；554- waterproof protrusions；555-
One groove；556- the second V-type circles；557- seal grooves；560- the first V-type circles；571- oil back chambers；572- backwater cavities；600- wheels.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the embodiment of the present invention, it should be noted that term " first ", " second " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.
Embodiment 1
Fig. 1 is overall structure diagram of the gear train assembly 010 provided in this embodiment under the first visual angle, and Fig. 2 is
The cross-sectional view at II-II place in Fig. 2.Incorporated by reference to referring to Figures 1 and 2, the present embodiment provides a kind of gear train assemblies
010 comprising gear housing 100, input shaft 200 and output shaft 400 are provided with the between output shaft 400 and gear housing 100
Two sealing mechanisms 500.Second sealing mechanism 500 includes first bearing seat 510, sealing ring 520, the first end cover 530, sealing
Inner cover 540, multipurpose lid 550 and the first V-type circle 560.First bearing seat 510, sealing ring 520, the first end cover 530,
Inner sealing lid 540, multipurpose lid 550 and the first V-type circle 560 are set in outside output shaft 400, and first bearing seat 510 is fixed
It is connected on gear housing 100, inner sealing lid 540 is fixedly connected in first bearing seat 510, and the first end cover 530 is fixed
It is connected on inner sealing lid 540.Sealing ring 520 is arranged between first bearing seat 510 and output shaft 400, with first bearing seat
510 and inner sealing lid 540 leakproof labyrinth is collectively formed, and the oil back chamber 571 being connected to leakproof labyrinth.Multipurpose lid 550 with
Output shaft 400 is fixedly connected, and between the first end cover 530 and output shaft 400, and multipurpose lid 550 and first seals
Anti- water maze and the backwater cavity being connected to anti-water maze 572 is collectively formed in end cap 530 and inner sealing lid 540.First V-type circle
560 are arranged between inner sealing lid 540 and multipurpose lid 550, and leakproof labyrinth and anti-water maze is completely isolated.Lubricating oil is anti-
Under the collective effect for leaking the contact seal of the non-contact seals and the first V-type circle 560 in labyrinth, it is sealed in gear-box；
Water cannot be introduced into gear under the collective effect of the contact seal of the non-contact seals and the first V-type circle 560 of anti-water maze
In babinet 100, the problem of thinking so as to avoid emulsification of lubricant.It should be noted that in the present embodiment, V-type circle is section shape
Shape is the sealing ring of V-type.
Gear train assembly 010 provided in this embodiment is further described below：
Fig. 3 is overall structure diagram of the gear train assembly 010 provided in this embodiment under the second visual angle.Incorporated by reference to
Referring to Figure 1 and Figure 3, in the present embodiment, gear housing 100 includes the gear-box ontology 110 and gear box cover being connected with each other
120, gear-box ontology 110 uses rectilinear branch mailbox with gear box cover 120, and the setting of gear box cover 120 is separate in output shaft 400
One end of second sealing mechanism 500, i.e. one end far from wheel 600.The both ends of gear-box ontology 110 are respectively arranged with lifting lug
111 and sunpender 112, gear-box is connect by the sunpender 112 being arranged on gear-box ontology 110 with bogie when use.Gear
The top of case ontology 110 offers observation window 113, passes through nibbling for the transmission gear in 113 observable gear housing 100 of observation window
The mobility status of conjunction and lubricating oil.The attachmentes such as refueling bolt 114 and oil discharge screw 115, refueling bolt are additionally provided on gear-box
114 are located at the top of oil discharge screw 115.Breather 121 and oil level form 122 are provided on gear box cover 120.
Fig. 4 is the partial enlargement structural representation at IV in Fig. 2.It is in the present embodiment incorporated by reference to reference to Fig. 2 and Fig. 4
Keep the structure of gear train assembly 010 compacter, input shaft 200 is arranged along the direction of advance of locomotive, i.e. input shaft 200
Axis is arranged perpendicular to the axis of output shaft 400.Specifically, input shaft 200 and the connecting portion of gear-box ontology 110 are provided with
Two taper roll bearings being arranged back-to-back are provided among second bearing seat 220, second bearing seat 220 and input shaft 200,
Two taper roll bearings are sleeved on by interference fit on input shaft 200.It is provided with spacer ring between two taper roll bearings
230, spacer ring 230 and 200 clearance fit of input shaft, for adjusting bearing clearance.Meanwhile it being additionally provided on the outside of taper roll bearing
Axial baffle ring 240, axial baffle ring 240 are fixedly connected on by clamping screw on input shaft 200, prevent taper roll bearing axial
Play, to realize the axially position of taper roll bearing.The setting of first sealing mechanism 210 is in second bearing seat 220 and axially
Between baffle ring 240.In the present embodiment, the first sealing mechanism 210 is the mechanical labyrinth structure of non-contacting seal, it is possible to understand that
, in other embodiments, other sealing structures can also be selected as the first sealing mechanism 210, example according to the demand of user
Such as contact type sealing structure with dustband.It should be noted that in the present embodiment, the back of the body of taper roll bearing is taper roller
The distance between smaller one side.
Please continue to refer to Fig. 2, in the present embodiment, gear train assembly 010 further includes jackshaft 300, input shaft 200 with
It is connected by one-stage gear auxiliary driving between jackshaft 300, is passed by secondary gear wheel set between output shaft 400 and jackshaft 300
Dynamic connection.In use, the power that input shaft 200 obtains from motor passes to output shaft 400 by jackshaft 300, finally lead to
It crosses the wheel 600 being connected on output shaft 400 and drives motor sport.Specifically, one-stage gear pair is spiral bevel gear pair, input shaft
Axis of 200 axis perpendicular to jackshaft 300.Active spiral bevel gear 250 is arranged in the shaft end of input shaft 200, with input shaft
200 are structure as a whole；The sleeve 310 with the interference fit connection of jackshaft 300, driven spiral bevel gear are provided on jackshaft 300
320 are bolted to connection on sleeve 310, are driven by sleeve 310 and jackshaft 300；Active spiral bevel gear 250 with from
Dynamic spiral bevel gear 320 engages, to which power is transmitted to jackshaft 300 from input shaft 200.It should be noted that in this embodiment,
Driven spiral bevel gear 320 is connected between by sleeve 310 on axis 300, it is possible to understand that, it in other embodiments, can also
According to the demand of user, driven spiral bevel gear 320 is connected directly between on jackshaft 300 by way of being interference fitted and connecting.
Further, the second mounting hole and third mounting hole are offered respectively along the both ends of 300 axis of jackshaft, specifically
, the second mounting hole is opened on gear box cover 120, and third mounting hole is opened on gear-box ontology 110.At second mounting hole
It is provided with 3rd bearing seat 340, taper roll bearing is provided between 3rd bearing seat 340 and jackshaft 300；Third mounting hole
Place is also equipped with taper roll bearing；Two taper roll bearings are sleeved on by interference fit on jackshaft 300, and two circles
The back of the body of taper roller bearing is towards 100 outside of gear housing.Meanwhile second mounting hole be provided with third end cover 350, third
End cover 350 is detachably connected to by bolt on gear box cover 120, and the 4th end cover is provided at third mounting hole
360, the 4th end cover 360 is detachably connected to by bolt on gear-box ontology 110, to seal jackshaft 300
It is arranged in gear housing 100.It is coated with sealing respectively on the mounting surface of third end cover 350 and the 4th end cover 360
Glue forms contact seal
Secondary gear wheel set is cylindric spiral gear pair, and the axis of jackshaft 300 is parallel with the axis of output shaft 400.Actively circle
Column helical gear 330 is arranged on jackshaft 300；Driven cylindric spiral gear 416 is bolted to connection on vinegar Hu axis；It is main
Dynamic cylindric spiral gear 330 is engaged with driven cylindric spiral gear 416, to pass on output shaft 400 power from jackshaft 300.
In the present embodiment, output shaft 400 includes hollow shaft 410 and the inner shaft 420 being arranged in hollow shaft 410, and inner shaft 420 is located at sky
For being connect with wheel 600, driven cylindric spiral gear 416 is fixedly connected in hollow shaft 410 for one end outside mandrel 410.It is hollow
Bellmouth 411 is provided in axis 410, the peripheral surface of inner shaft 420 is provided with the conical surface to match with bellmouth 411, passes through the conical surface
Inner shaft 420 is fixed in hollow shaft 410 with the interference fit of conical bore, to which power is passed to inner shaft from hollow shaft 410
420, final driven wheel 600 rotates.
Further, the cylindrical hole 412 being coaxially disposed with bellmouth 411, cylindrical hole are additionally provided in hollow shaft 410
412 are interconnected with bellmouth 411, to make hollow shaft 410 form hollow structure.It is provided in inner shaft 420 and cylindrical hole
412 matched cylindrical shafts, when installation, cylindrical shaft stretches into cylindrical hole 412, realizes the coaxial of inner shaft 420 and hollow shaft 410
Positioning.
Further, the one end of cylindrical hole 412 far from bellmouth 411 is provided with door 413, and door 413 passes through bolt
It is fixedly connected in hollow shaft 410, to seal the one end of cylindrical hole 412 far from bellmouth 411, realizes gear housing
Sealing in 100.
Further, the first mounting hole is offered on gear box cover 120, the first position of mounting hole is opposite with output shaft 400
It answers, in the present embodiment, the axis of the first mounting hole is overlapped with the axis of output shaft 400.Hollow shaft 410 and gear-box ontology
It is provided with first bearing seat 510 between 110, taper roll bearing is provided between first bearing seat 510 and gear box cover 120；
It is provided with fourth bearing seat 414 between hollow shaft 410 and gear box cover 120, is set between fourth bearing seat 414 and hollow shaft 410
It is equipped with taper roll bearing；The back of the body of two taper roll bearings is towards 100 outside setting of gear housing.Fourth bearing seat 414
On be fixedly connected with the second end cover 415, to which the one end of output shaft 400 far from wheel 600 is sealed in gear housing 100
It is interior.It is coated with fluid sealant on the mounting surface of second end cover 415, forms contact seal.
Fig. 5 is the partial enlargement structural representation at V in Fig. 2.It is in the present embodiment, empty incorporated by reference to reference Fig. 2 and Fig. 5
The second sealing mechanism 500 is provided between mandrel 410 and gear-box ontology 110, the second sealing mechanism 500 includes first bearing seat
510, sealing ring 520, the first end cover 530, inner sealing lid 540, multipurpose lid 550 and the first V-type circle 560.First axle
Bearing 510 is fixedly connected on gear housing 100, the axial direction of inner sealing lid 540 and the first end cover 530 along output shaft 400
Outwardly direction is fixedly connected sequentially in first bearing seat 510, and is coated with sealing on the mounting surface of the first end cover 530
Glue forms contact seal.
Fig. 6 is that the present embodiment provides the structural schematic diagrams of multipurpose lid 550 in gear train assembly 010.Incorporated by reference to reference
Fig. 5 and Fig. 6, in the present embodiment, multipurpose lid 550 is by sequentially connected first auxiliary section 551, the second auxiliary section in an axial direction
552 and third auxiliary section 553 constitute, the radial dimension of the second auxiliary section 552 is more than the radial dimension of the first auxiliary section 551, the
The radial dimension of one auxiliary section 551 is more than the radial dimension of third auxiliary section 553, while being additionally provided on the second auxiliary section 552
The waterproof protrusion 554 extended radially outward, radially outward direction the distance between both sides of the face of waterproof protrusion 554 by
It is decrescence small.The first groove 555 axially extended, the inner surface of the first groove 555 are provided on the end face of third auxiliary section 553
Coordinate with the outer surface of hollow shaft 410, and the bottom surface of the first groove 555 is abutted with the outer end face of hollow shaft 410.Connection bolt is worn
Multipurpose lid 550 is crossed, is screwed onto in hollow shaft 410, to which multipurpose lid 550 to be fixedly connected in hollow shaft 410.
Further, the second V-type circle 556 is provided between the inner peripheral surface of multipurpose lid 550 and the peripheral surface of inner shaft 420,
The inner face of second V-type circle 556 is abutted with the outer end face of hollow shaft 410, forms contact sealing；The peripheral surface of second V-type circle 556
There are gaps between the inner peripheral surface of multipurpose lid 550, to form small―gap suture sealing, form resistance to external water, prevent
The problem of a large amount of water enter, hollow shaft 410 and inner shaft 420 are caused to get rusty.
Fig. 7 is the structural schematic diagram of inner sealing lid 540 in gear train assembly 010 provided in this embodiment.Incorporated by reference to ginseng
According to Fig. 5-7, in the present embodiment, the second groove 543 is provided on inner sealing lid 540, the inner bottom surface of the second groove 543 is sealing
The inner face of the first end face 541 of inner cover 540, the inner sealing lid 540 being oppositely arranged with first end face 541 is inner sealing lid 540
Second end face 542.Be provided with the first protrusion 544 in first end face 541, the circumferential surface of the second groove 543, first end face 541 with
And first protrusion 544, multipurpose lid 550 and the first end cover 530 enclose and set to form backwater cavity 572 jointly, under backwater cavity 572
End, i.e., in use, backwater cavity 572 is provided with osculum (not shown) close to the position on ground.From multipurpose lid 550 and
The water entered between one end cover 530, collects in backwater cavity 572, and be discharged by osculum.Outside first protrusion 544
End face is provided with the inclined-plane coordinated with the end face of waterproof protrusion 554, which approaches cooperation, the first protrusion with waterproof protrusion 554
544 inner peripheral surface and the peripheral surface of the second auxiliary section 552 approach cooperation, form anti-water maze, prevent part water in output shaft 400
Rotation drive under, splash enter gear housing 100 in.
Further, seal groove 557 is offered on the inner face of the second auxiliary section 552, the first V-type circle 560 is arranged close
In sealing groove 557, and the both ends of the first V-type circle 560 are connected to respectively on the bottom and first end face 541 of seal groove 557, and formation connects
Sealing is touched, thoroughly prevents the impurity such as water from entering inside gear housing 100.
Fig. 8 is the structural schematic diagram of first bearing seat 510 in gear train assembly 010 provided in this embodiment, and Fig. 9 is this
The structural schematic diagram of sealing ring 520 in the gear train assembly 010 that embodiment provides.Incorporated by reference to reference to Fig. 5, Fig. 8 and Fig. 9,
In the present embodiment, the second protrusion 545 inwardly in the axial direction, sealing ring are provided in the second end face 542 of inner sealing lid 540
The two of 520 are respectively arranged with the third protrusion 521 and the 4th protrusion 522 of the extension of both ends in an axial direction, and the second protrusion 545 is folded in
Between third protrusion 521 and third auxiliary section 553.Be provided with third groove 511 in first bearing seat 510, third groove 511 with
The peripheral surface and second end face 542 of third protrusion 521, which enclose, to be set to form oil back chamber 571.It is provided with oil return hole in oil back chamber 571,
Oil return hole is used to lead back to the lubricating oil entered in oil back chamber 571 in gear housing 100.The inner peripheral surface of second protrusion 545 and
The peripheral surface of three auxiliary sections 553 approaches cooperation, and the inner face of the second protrusion 545 approaches cooperation with the outer end face of sealing ring 520, the
The peripheral surface of two protrusions 545 approaches cooperation, the outer end face and second end face of third protrusion 521 with the inner peripheral surface of third protrusion 521
542 approach cooperation, form leakproof labyrinth.And since the setting of the first V-type circle 560 is in the second auxiliary section 552 and first end face 541
Between, anti-water maze and leakproof labyrinth are kept apart, the water into anti-water maze can not enter leakproof by the first V-type circle 560
Labyrinth, so as to avoid the emulsification of lubricant in gear housing 100；Lubricating oil into leakproof labyrinth can not pass through the first V-type
Circle 560 enters anti-water maze, is leaked so as to avoid lubricating oil.Further, the 4th protrusion 522 is folded in first bearing
Between seat 510 and hollow shaft 410, and the peripheral surface of the 4th protrusion 522 and the inner peripheral surface of first bearing seat 510 form small―gap suture and match
It closes.
The gear train assembly 010 provided in the embodiment of the present invention, gear housing 100 include the gear-box of vertical branch mailbox
Ontology 110 and gear box cover 120, gear box cover 120 are bolted to connection with gear-box ontology 110, convenient for assembly and
Dismounting is safeguarded simple.By the way that the first sealing mechanism 210 and the second sealing mechanism 500 is arranged, gear housing 100 has been fully ensured that
Sealing, solve the problems, such as emulsification of lubricant, meet the sealing demand of low-floor light rail vehicle.By to gear train assembly 010
In each component arrangement, form rational asphalt channel, it is ensured that lubricating oil can carry out each component in gear housing 100
Lubrication.The gear train assembly 010 that the embodiment of the present invention provides is compact-sized, and convenient disassembly, sealing water resistance are good, fully
Meet requirement.
The embodiments of the present invention also provide a kind of low-floor light rail vehicle (not shown) comprising above-mentioned gear drive
System 010.Since the low-floor light rail vehicle includes above-mentioned gear train assembly 010, also there is compact-sized, dismounting side
Just, sealing water resistance is good, the advantageous effect that can fully satisfy the use demand.
Embodiment 2
The present embodiment also provides a kind of gear train assembly 010, the gear train assembly 010 provided with embodiment 1
Essentially identical, something in common the present embodiment is not repeated to record, the difference is that, input shaft 200 connects with gear-box ontology 110
The structure for meeting place is different.
Figure 10 is the partial structural diagram of gear train assembly 010 provided in this embodiment.Figure 10 is please referred to, in this reality
It applies in example, there are two the ball axis of cylinder roller bearing and four point contacts for setting between input shaft 200 and second bearing seat 220
Hold 263.Two cylinder roller bearings are respectively the first cylinder roller bearing 261 and the second cylinder roller bearing 262.First cylinder
Roller bearing 261, ball bearing 263 and the second cylinder roller bearing 262 are set gradually along the axis direction of input shaft 200, and by
Gradually close to active spiral bevel gear 250.Between first cylinder roller bearing 261 and ball bearing 263, the second cylinder roller bearing 262
Spacer ring 230, spacer ring 230 and 200 clearance fit of input shaft are respectively arranged between ball bearing 263, for adjusting bearing clearance.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of gear train assembly, which is characterized in that including：
Gear housing, input shaft and output shaft；The input shaft is sequentially connected with the output shaft and installs and the tooth respectively
Babinet is taken turns, the second sealing mechanism is provided between the output shaft and the gear housing；
Second sealing mechanism include first bearing seat, sealing ring, the first end cover, inner sealing lid, multipurpose lid and
First V-type circle；The first bearing seat is fixedly connected with the gear housing；The sealing ring is arranged in the first bearing seat
Between the output shaft；The inner sealing lid is fixedly connected in the first bearing seat；It is the first bearing seat, described close
The oil back chamber that seal ring and the inner sealing lid are collectively formed leakproof labyrinth and are connected to the leakproof labyrinth；
The multipurpose lid is set in outside the output shaft, and is fixedly connected with the output shaft；The first end cover set
It is located at outside the multipurpose lid, and is fixedly connected with the inner sealing lid；First end cover, the inner sealing lid and institute
It states multipurpose lid and anti-water maze is collectively formed, and the backwater cavity being connected to the anti-water maze；
The first V-type circle is arranged between the inner sealing lid and the multipurpose lid, is used for leakproof labyrinth and institute
State anti-water maze isolation.
2. gear train assembly according to claim 1, it is characterised in that：
The multipurpose lid includes sequentially connected first auxiliary section, the second auxiliary section and third auxiliary section in an axial direction, and described the
The radial dimension of two auxiliary sections is more than the radial dimension of first auxiliary section, and the radial dimension of first auxiliary section is more than institute
State the radial dimension of third auxiliary section；The peripheral surface of second auxiliary section is provided with waterproof protrusion；The of the inner sealing lid
The first protrusion is provided on end face；
The end face of the waterproof protrusion and the end face of first protrusion approach cooperation, the described first raised inner peripheral surface with it is described
The peripheral surface of second auxiliary section approaches cooperation, forms the anti-water maze.
3. gear train assembly according to claim 2, it is characterised in that：
The inner sealing lid has second end face opposite with the first end face, and it is convex to be provided with second in the second end face
It rises；The sealing ring includes the third protrusion extended axially outwardly and the inwardly in the axial direction the 4th protrusion；Described
The inner peripheral surface of two protrusions and the peripheral surface of the third auxiliary section approach cooperation, the inner face of second protrusion and the sealing
The outer end face of ring approaches cooperation, and the peripheral surface of second protrusion and the inner peripheral surface of the third protrusion approach cooperation, and described the
The end face of three protrusions approaches cooperation with the second end face, forms the leakproof labyrinth.
4. gear train assembly according to claim 1, it is characterised in that：
The output shaft includes hollow shaft and the inner shaft that is arranged in the hollow shaft；It is provided with taper in the hollow shaft
The peripheral surface in hole, the inner shaft is taper and the matched conical surface of the bellmouth；The inner shaft by the conical surface with it is described
Bellmouth is interference fitted, for the inner shaft to be fixedly connected in the hollow shaft.
5. gear train assembly according to claim 4, it is characterised in that：
It is provided with the first groove on the inner face of the multipurpose lid, the inner surface of first groove is outer with the hollow shaft
Surface engagement；The second V-type circle, the 2nd V are provided between the inner peripheral surface of the multipurpose lid and the peripheral surface of the inner shaft
Clearance seal is formed between the peripheral surface of type circle and the inner peripheral surface of the multipurpose lid；The inner face of the second V-type circle and institute
The outer end face for stating hollow shaft abuts.
6. gear train assembly according to claim 4, it is characterised in that：
The cylindrical hole being coaxially disposed with the bellmouth is further opened in the hollow shaft, be provided in the inner shaft with it is described
The matched cylindrical shaft of cylindrical hole；The one end of the cylindrical hole far from the bellmouth is sealed by door, the door
It is fixedly connected with the hollow shaft.
7. gear train assembly according to claim 1, it is characterised in that：
The gear housing includes gear-box ontology and gear box cover, and the gear-box ontology and the gear box cover are detachable
Ground connects；The gear box cover is arranged in the one end of the output shaft far from second sealing mechanism.
8. gear train assembly according to claim 7, it is characterised in that：
The first mounting hole is offered on the gear box cover, the position of first mounting hole is opposite with the position of the output shaft
It answers；Second end cover is installed, second end cover and the gear box cover are removably at first mounting hole
Connection.
9. gear train assembly according to claim 1, it is characterised in that：
The gear train assembly further includes jackshaft；The axis of the input shaft is vertical with the jackshaft, the input shaft
It is sequentially connected by spiral bevel gear pair between the jackshaft；The axis of the jackshaft and the axis of the output shaft are flat
Row, is connected between the jackshaft and the output shaft by secondary gear auxiliary driving.
10. a kind of low-floor light rail vehicle, it is characterised in that：
The low-floor light rail vehicle includes such as claim 1-9 any one of them gear train assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747432.7A CN108547937B (en) | 2018-07-09 | 2018-07-09 | Gear transmission system and low-floor light rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747432.7A CN108547937B (en) | 2018-07-09 | 2018-07-09 | Gear transmission system and low-floor light rail vehicle |
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| Publication Number | Publication Date |
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| CN108547937A true CN108547937A (en) | 2018-09-18 |
| CN108547937B CN108547937B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810747432.7A Active CN108547937B (en) | 2018-07-09 | 2018-07-09 | Gear transmission system and low-floor light rail vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187880A (en) * | 2021-05-07 | 2021-07-30 | 太原重工股份有限公司 | Sealing end cover for tilting device gear box |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108547937B (en) | 2024-03-19 |
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