CN108443469A - A kind of gear case used in rail transit vertical-transmission method and vertical transmission gear box - Google Patents
A kind of gear case used in rail transit vertical-transmission method and vertical transmission gear box Download PDFInfo
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- CN108443469A CN108443469A CN201810328383.3A CN201810328383A CN108443469A CN 108443469 A CN108443469 A CN 108443469A CN 201810328383 A CN201810328383 A CN 201810328383A CN 108443469 A CN108443469 A CN 108443469A
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- Prior art keywords
- gear
- bearing
- jackshaft
- input shaft
- transmission
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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
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
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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
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/03—Gearboxes; Mounting gearing therein characterised by means for reinforcing gearboxes, e.g. ribs
-
- 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
- F16H57/038—Gearboxes for accommodating bevel gears
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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
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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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
- F16H2057/02034—Gearboxes combined or connected with electric machines
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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
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
- F16H2057/02052—Axle units; Transfer casings for four wheel drive
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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
- F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
Abstract
A kind of gear case used in rail transit vertical-transmission method and vertical transmission gear box, input shaft and output shaft are vertically arranged, the rotation of input shaft is passed into output shaft by vertical-transmission by the way of secondary transmission, the rotation of input shaft is passed to jackshaft by the first gear stage by the way of vertical-transmission, and the rotation of jackshaft is passed to output shaft by the second gear stage by the way of parallel drive.The present invention is by the way of secondary transmission, and the first gear stage uses parallel drive using vertical-transmission, the second gear stage, and entire gear-box is small, compact-sized, dramatically saves installation space.Secondary transmission makes transmission ratio that can be adjusted in wide range, reliability is high.
Description
Technical field
The present invention relates to a kind of gearbox drive method and gear-boxes, and in particular to a kind of gear case used in rail transit is vertical
Drive method and vertical transmission gear box.
Background technology
Gear-box is core component in railway transportation equipment vehicle drive system, is typically mounted on axle, another
End is hung on by sunpender on framework, and traction electric machine input torque is transmitted to wheel pair through a stable drive ratio, runs and pacifies to vehicle
Complete and reliability has vital influence.
Traditional gearbox drive mode be generally level-one or two level parallel pinion shaft transmission, traction electric machine axis also with gear
Axis is parallel, is mounted between axle and intermediate beam.Since bogie structure is compact, traction electric machine and gear-box installation space are very
It is limited, when design requirement wheel-base bogie reduces, traction electric machine outer diameter is larger or other special circumstances, no space will be caused
Gear-box and traction electric machine are installed, if also needed to arrange other devices, such as brake disc on axle, also lead to no space peace
Toothing roller box and traction electric machine.It is, therefore, desirable to provide a kind of new technical solution, meets gear-box and traction electric machine installation space
Needs when narrow.
Such as number of patent application CN201510970136.X, the application for a patent for invention of entitled " hydraulic power axle gear box "
Disclose a kind of hydraulic power axle gear box used for rail vehicle, including babinet assembly, input axle assembly, countershaft assembly,
The outside diameter of gear of export axle assembly and breather, the input gear axle of input axle assembly is less than input shaft solid box bore
Diameter；Input shaft integrated bearing block and plummer block seat are equipped with corresponding first oil trap, and upper box is equipped with second
Oil trap, lower box are equipped with third oil trap, input shaft integrated bearing block, plummer block seat, on output shaft bearing seat
Equipped with corresponding oil storage cabin, oil guide plate is set on the observation window of upper box；Each oil trap is communicated with corresponding bearing respectively, each to store up
Bunker rib height is at least above at the 1/3 ~ 1/2 of corresponding bearing lowest point roller height；The input terminal of input axle assembly revolves
Turn at perforation, the output end of countershaft assembly rotates at perforation and is equipped with sealing structure at the rotation perforation of export axle assembly；
Structure of the invention is compact, rationally distributed, and lubrication is reliable.
A kind of practicality such as number of patent application CN201220127871.6, entitled " modular construction industrial gearbox " is new
Type patent discloses a kind of modular construction industrial gearbox, it includes mainly box part, input shaft component, intermediate shaft part
And output shaft assembly, be respectively arranged in the babinet of the box part output bearing block installed for output shaft assembly,
For intermediate shaft part installation middle bearing bracket and a variable bearing block, and the output bearing block, middle bearing bracket and
The axis center parallel arrangement of variable bearing block can match the external of end cap corresponding to being offered on the side box body wall of variable bearing block
Mouthful；The Hardened gear face Series Gear case of two kinds of different types of parallel axes and vertical axis that it is designed using modular technology, tooth
It is completely general to take turns box body and gear；With compact-sized, easy to use, gear range is wide, it is big to transmit torque, can stand
Formula, horizontal installation, output shaft have the way of outputs such as solid shafting, hollow shaft, shrink disc hollow shaft, hollow spline and flange shaft,
The features such as user demand can be met to the maximum extent.
Although above-mentioned patent is related to the gear-box of vertical-transmission, but still it is tight to cannot be satisfied rail vehicle truck structure
Gather, traction electric machine and gear-box installation space it is narrow and to the demand of gear-box volume defining, can not also be applied to rail traffic
Field, therefore still need to improve, the present invention provides a kind of completely new vertical transmission gear box solutions.
Invention content
The present invention is excessive for current gear case volume, can not adapt to that rail vehicle truck is compact-sized, traction electric machine
It is narrow with gear-box installation space and the problem of cause traction electric machine and gear-box to be fitted without position, it is proposed that a kind of track is handed over
Universal vertical-transmission method and vertical transmission gear box, it is intended to which gear-box and traction electric machine do not have in some cases for solution
Installation space problem carries also to meet railway transportation equipment diversified development demand for gear-box and traction electric machine arrangement
For a kind of completely new solution, conventional gearbox and the arrangement relation of motor are changed.
Used technological means is the present invention in order to solve the above problem：A kind of gear case used in rail transit vertical-transmission side
Input shaft and output shaft are vertically arranged by method, are transmitted the rotation of input shaft by vertical-transmission by the way of secondary transmission
To output shaft, the rotation of input shaft is passed to jackshaft by the first gear stage by the way of vertical-transmission, and the second level passes
The rotation of jackshaft is passed to output shaft by dynamic device by the way of parallel drive.
Further, the input shaft of the first gear stage is vertically arranged with jackshaft, and cone is set on input shaft
Gear one is arranged bevel gear two in jackshaft, makes two Vertical Meshing of bevel gear one and bevel gear, the rotation of input shaft is vertically passed
Pass jackshaft；Output shaft in second gear stage is set as with jackshaft parallel, wherein jackshaft is driven with the first order
Device shares, and roller gear is arranged in jackshaft, and gear wheel is arranged in output shaft, makes roller gear is parallel with gear wheel to nibble
It closes, passes to output shaft by the rotation of jackshaft is parallel.
Further, the installation of input shaft is mounted on gear-box body end using double-row conical bearing by bearing insert
The input shaft bearing in portion forms cantilever structure, reduces input shaft length.
Further, input shaft axial position is adjusted by the way that adjusting pad is arranged in the end face of bearing insert and gear housing,
So as to adjust bevel gear sideshake.
Further, by being arranged bevel gear two and roller gear in jackshaft, and the flank of tooth of bevel gear two is towards cylinder
The mode of gear reduces gear-box the space occupied.
Further, gear housing internal element is moistened by the way that oil trap and lubricant passage way are arranged in gear housing
Sliding, gear and bearing are lubricated by the way of lubrication of splashing.
Further, input shaft labyrinth is set by being located at the end of gear housing in the outside of input shaft,
End cap is arranged in the both ends of jackshaft, in the outside setting output shaft labyrinth of output bearing, prevents the lubricating oil in gear-box
Leakage.
Further, gear housing is using the branch mailbox structure for including upper box and lower box.
A kind of rail traffic vertical transmission gear box, including gear housing, the fixing device that is located in gear housing and
Mounted on the transmission device of fixing device, transmission device includes the first gear stage and the second gear stage, and the first order passes
Dynamic device and motor axis connection, the second gear stage are connect with axle, and the first gear stage and the second gear stage are total
With a jackshaft, jackshaft is vertically arranged with motor shaft, is arranged in parallel with axle, and the first gear stage passes through vertical-transmission
The movement of motor shaft is transmitted to jackshaft, the movement of jackshaft is transmitted to vehicle by the second gear stage by parallel drive
Axis.
Further, the first gear stage includes input shaft and is fixed on the bevel gear one of input shaft, jackshaft and consolidates
It is scheduled on the bevel gear two of jackshaft, wherein input shaft is vertically arranged with jackshaft, bevel gear one and two Vertical Meshing of bevel gear；The
Secondary transmission device includes the jackshaft shared with the first gear stage and the roller gear for being fixed on jackshaft, is also wrapped
Output shaft and the gear wheel for being fixed on output shaft are included, wherein jackshaft is arranged in parallel with output shaft, and roller gear and gear wheel are flat
Row engagement.
Further, fixing device includes input fixing device, intermediate retainer and exports fixing device, input shaft,
Jackshaft and output shaft are mounted on gear housing by fixing device, intermediate retainer and output fixing device respectively.
Further, input fixing device includes input shaft bearing and the input shaft bearing in input shaft bearing Inner is arranged, defeated
Enter bearing and gear housing end is mounted on by input shaft bearing, input shaft passes through the hole of input shaft bearing, one end to stretch out gear-box
Body and motor axis connection；Intermediate retainer includes middle bearing bracket and the intermediate bearing in middle bearing bracket, jackshaft is arranged
It holds and gear housing is mounted on by middle bearing bracket, jackshaft is fixed by intermediate bearing；It includes output shaft to export fixing device
Bearing is mounted on gear housing, output shaft with the output bearing in output bearing block, output bearing is arranged by exporting bearing block
For axle, fixed by exporting bearing.
Further, input shaft bearing is double-row conical bearing, and in double-row conical bearing and input shaft bearing
Between be equipped with bearing insert；Intermediate bearing is taper roll bearing one, and taper roller axis is arranged face-to-face at the both ends of jackshaft
Hold one；Output bearing is taper roll bearing two, and taper roll bearing two is arranged face-to-face at axle both ends.
Further, bearing insert and gear housing end face are equipped with the adjusting pad of adjustment input shaft axial position.
Further, oil trap and lubricant passage way are equipped in gear housing.
Further, the outside of input shaft be located at gear housing end be equipped with input shaft labyrinth, jackshaft
Both ends are equipped with end cap, and the outside for exporting bearing is equipped with output shaft labyrinth.
Further, gear housing is branch mailbox structure, including upper box and lower box, point between upper box and lower box
Case angle is 30o-50o, flask joint pass through export shaft mounting hole center.
Further, it is provided with reinforcing rib on gear housing.
Further, hanging mounting base is provided on gear housing.
The beneficial effects of the invention are as follows：
1. the present invention, by the way of secondary transmission, the first gear stage is used using vertical-transmission, the second gear stage
Parallel drive, entire gear-box is small, compact-sized, dramatically saves installation space.
2. the secondary transmission of the present invention makes transmission ratio that can be adjusted in wide range, reliability is high.
3. the input shaft of the present invention is mounted on gear housing end by a double-row conical bearing and bearing insert,
Its axial position is overlapped with second level transmission gear radial, gear-box inner space is taken full advantage of, using double row tapered roller
Sub- bearing reduces input shaft length, reduces traction electric machine and gear-box mounting distance.
4. input shaft of the present invention installation uses double-row conical bearing, bearing clearance need not be adjusted, be easily installed and
It safeguards.
Description of the drawings
Fig. 1 is external structure schematic diagram of the present invention；
Fig. 2 is Figure 1A-A of the present invention to schematic cross-sectional view；
Fig. 3 is mounting structure schematic diagram of the present invention；
In figure：1. gear housing, 11. upper boxes, 12. lower boxes, 13. reinforcing ribs, 14. hanging mounting bases, 2. input shafts, 21.
Bevel gear one, 22. double-row conical bearings, 23. input shaft labyrinths, 24. bearing inserts, 25. adjusting pads, among 3.
Axis, 31. bevel gears two, 32. roller gears, 33. taper roll bearings one, 34. end caps, 4. output shafts, 41. gear wheels, 42. circles
Taper roller bearing two, 43. output shaft labyrinths.
Specific implementation mode
The following further describes the present invention with reference to the drawings.
Embodiment one
As shown in Figs. 1-3, a kind of rail traffic vertical transmission gear box, by the way of secondary transmission, including a gear
Babinet 1, gear housing 1 is used as mounting body, interior to be equipped with fixing device, and transmission device is mounted on gear housing by fixing device
1, the movement of traction electric machine is transmitted to axle, train is driven to advance.Fixing device includes input fixing device, intermediate fixed dress
Fixing device is set and exports, input shaft, jackshaft and output shaft are fixed by fixing device, intermediate retainer and output respectively
Device is mounted on gear housing 1.
Input fixing device includes input shaft bearing and the input shaft bearing in input shaft bearing Inner is arranged, and input shaft bearing passes through
Input shaft bearing is mounted on 1 end of gear housing, and input shaft 2 passes through the hole of input shaft bearing, one end to stretch out gear housing 1 and motor
Axis connection, traction electric machine are placed on 2 axis of gearbox input shaft, when motor rotates together by motor shaft band driven input shaft 2
Movement.There are bevel gear 1, input shaft 2 to be structure as a whole with bevel gear 1 on input shaft 2；The overall ruler of gear-box in order to control
Very little, input shaft bearing uses double-row conical bearing 22, and installs and debug for the ease of gear, improves gear and bearing installation
Precision is arranged after bearing insert 24 through input shaft bearing outside double-row conical bearing 22 mounted on the end of gear housing 1
Portion, input shaft 2 form cantilever structure.The length of input shaft 2 is reduced using double-row conical bearing 22, therefore is reduced
The mounting distance of traction electric machine and gear-box keeps the structure of gear-box compacter, and traction electric machine is placed on gearbox input shaft 2
On axis, bogie space is taken full advantage of.
Intermediate retainer includes middle bearing bracket and the intermediate bearing in middle bearing bracket is arranged, during intermediate bearing passes through
Between bearing block be mounted on gear housing 1, jackshaft 3 fixed by intermediate bearing；Intermediate bearing uses taper roll bearing 1,
At the both ends of jackshaft 3, respectively one taper roll bearing 1 of installation, two taper roll bearings 1 are arranged face-to-face, each logical
A middle bearing bracket is crossed on gear housing 1, bevel gear 2 31 and roller gear 32 are socketed on jackshaft 3.
Output fixing device includes exporting bearing block and the output bearing in output bearing block being arranged, and output bearing passes through defeated
Go out bearing block and be mounted on gear housing 1, output shaft 4 is axle, is fixed by exporting bearing.It exports bearing and uses taper roller axis
2 42 are held, one taper roll bearing 2 42, two 2 42 face-to-face cloth of taper roll bearing are respectively installed at the both ends of output shaft
It sets, is respectively mounted on gear housing 1 by an output bearing block, there are one gear wheels 41 for socket on output shaft 4.
Input shaft 2 is vertically arranged with jackshaft 3, is inputted between fixing device and intermediate retainer and is also vertically arranged, pole
The earth saves the space of installation, Vertical Meshing between bevel gear 1 and bevel gear 2 31, the gear driving pair structure of composition
It is driven at the first order.Jackshaft 3 is arranged in parallel with output shaft 4, also parallel between intermediate retainer and output fixing device to set
It sets, parallel engagement between roller gear 32 and gear wheel 41, the gear driving pair of composition constitutes second level transmission.Pass through first
The movement of traction electric machine is transmitted to jackshaft 3 by grade transmission, and the movement of jackshaft 3 is transmitted to axle by second level transmission.It is intermediate
2 31 flank of tooth of bevel gear of axis 3 is towards roller gear 32, the gear for making input shaft fixing device be driven in position with the second level
Transmission radially overlaps, and dramatically saves the space of installation.
Embodiment two
As shown in Fig. 2, in the present embodiment, oil trap and lubricant passage way are equipped in gear housing 1, and the lubrication of gear and bearing is adopted
With splashing lubricating system, ensure that each gear and bearing obtain sufficient lubrication.
Embodiment three
As shown in Fig. 2, in the present embodiment, the end face of bearing insert and gear housing 1 is equipped with adjusting pad 25, can be to input shaft 2
Axial position is accurately adjusted, and so as to adjust the bevel gear sideshake of first order transmission, makes bevel gear 1 and bevel gear 2 31
In best meshing state.
Example IV
As shown in Figure 1, in the present embodiment, gear housing 1 uses separate-box type structure, is divided into upper box 11 and lower box 12, branch mailbox
Angle is 30o-50o, flask joint tightened between upper box 11 and lower box 12 using bolt by the center of 4 mounting hole of output shaft
For an entirety.By using 1 structure of gear housing of separate-box type, the parts in gear housing 1 are easily installed and safeguard.
Embodiment five
As shown in Figure 1, in the present embodiment, the outside of gear housing 1 is equipped with hanging mounting base 14, when traction electric machine and gear-box are pacified
When being attached to train, hanging mounting base 14 provides hanging support for gear-box.
Embodiment six
As shown in Figure 1, in the present embodiment, the outside of gear housing 1 is equipped with reinforcing rib 13, increases the intensity of gear housing 1, with
Gear housing 1 is set preferably to provide protection for internal structure.
As shown in figure 3, when this gear-box to be installed on train, axle passes through output as the output shaft of gear housing
The movement of fixing device and gear wheel, traction electric machine is transmitted to axle by secondary transmission, and the movement of axle is again with driving wheel to fortune
It is dynamic, and then train is made to move ahead.
Above-described embodiment further relates to a kind of gear case used in rail transit vertical-transmission method, and input shaft 2 and output shaft 4 are hung down
The rotation of input shaft 2 is passed to output shaft 4, first order transmission by straight setting by the way of secondary transmission by vertical-transmission
The rotation of input shaft 2 is passed to jackshaft 3 by device by the way of vertical-transmission, and the second gear stage uses parallel drive
Mode the rotation of jackshaft 3 is passed into output shaft 4.The input shaft 2 of gear-box and traction electric machine axis connection, axle is as defeated
The rotation of traction electric machine is transmitted to axle by shaft 4 by way of vertical-transmission, and band driving wheel is to rotation.
The input shaft 2 of first gear stage is vertically arranged with jackshaft 3, and bevel gear one is set on input shaft 2
21, bevel gear 2 31 is set in jackshaft 3, makes 2 31 Vertical Meshing of bevel gear 1 and bevel gear, the rotation of input shaft 2 is hung down
It direct transfers and passs jackshaft 3；Output shaft 4 in second gear stage is set as with jackshaft 3 to parallel, wherein jackshaft 3 and
First level transmission device shares, and roller gear 32 is arranged in jackshaft 3, and gear wheel 41 is arranged in output shaft 4, makes roller gear 32
Engagement parallel with gear wheel 41 passes to output shaft 4 by the rotation of jackshaft 3 is parallel.Traction electric machine axis and 2 same axis of input shaft
Line connects, and traction electric machine is placed on 2 axis of gearbox input shaft, vertical with axle, makes full use of the space of bogie.
The installation of input shaft 2 is mounted on 1 end of gear housing using double-row conical bearing 22 by bearing insert 24
Input shaft bearing, formed cantilever structure, reduce 2 length of input shaft.Gear-box is stretched out in 2 one end of input shaft of cantilever structure
Body 1 and motor axis connection, the use of double-row conical bearing 22 reduce the mounting distance of traction electric machine and gear-box, make tooth
The more compact structure of roller box.
2 axial position of input shaft is adjusted by the way that adjusting pad 25 is arranged in the end face of bearing insert 24 and gear housing 1, to
Adjust bevel gear sideshake.Adjusting pad 25 can be with the axial position of intense adjustment input shaft 2, so as to adjust in the first gear stage
Bevel gear sideshake makes bevel gear 1 and bevel gear 2 31 be in optimal engagement state.
By being arranged bevel gear 2 31 and roller gear 32 in jackshaft 3, and the flank of tooth of bevel gear 2 31 is towards Cylinder Gear
The mode of wheel 32 reduces gear-box the space occupied.When the flank of tooth of bevel gear 2 31 is towards roller gear 32, the axis of input shaft 2
The heart is overlapped with roller gear 32 and 41 radial direction of gear wheel, is taken full advantage of the inner space of gear housing 1, is reduced gear-box
Installation space.
By being lubricated to 1 internal element of gear housing in the interior setting oil trap of gear housing 1 and lubricant passage way, gear
It is lubricated by the way of lubrication of splashing with bearing.
2 labyrinth seal of input shaft is arranged in end by being located at gear housing 1 in the outside of input shaft 2, in jackshaft 3
Both ends be arranged end cap 34, output bearing outside setting output shaft labyrinth, prevent the oil leak in gear-box.
Gear housing 1 using include upper box 11 and lower box 12 branch mailbox structure, convenient for gear-box carry out installation with
It safeguards.
It can be seen from above-described embodiment that the invention has the advantages that：
1. the present invention, by the way of secondary transmission, the first gear stage is used using vertical-transmission, the second gear stage
Parallel drive, entire gear-box is small, compact-sized, dramatically saves installation space.
2. the secondary transmission of the present invention makes transmission ratio that can be adjusted in wide range, reliability is high.
3. the input shaft of the present invention is mounted on gear housing end by a double-row conical bearing and bearing insert,
Its axial position is overlapped with second level transmission gear radial, gear-box inner space is taken full advantage of, using double row tapered roller
Sub- bearing reduces input shaft length, reduces traction electric machine and gear-box mounting distance.
4. input shaft of the present invention installation uses double-row conical bearing, bearing clearance need not be adjusted, be easily installed and
It safeguards.
Above example is used for illustrative purposes only rather than limitation of the present invention, the technology people in relation to technical field
Member without departing from the spirit and scope of the present invention, can also make a variety of changes or convert, therefore is all equivalent
Technical solution should also belong to the scope of protection of the present invention, and protection scope of the present invention should be limited by each claim.
Claims (10)
1. a kind of gear case used in rail transit vertical-transmission method, it is characterised in that：By input shaft（2）With output shaft（4）Vertically
Setting, by input shaft by the way of secondary transmission（2）Rotation output shaft is passed to by vertical-transmission（4）, first order biography
Dynamic device is by the way of vertical-transmission by input shaft（2）Rotation pass to jackshaft（3）, the second gear stage is using flat
The mode of row transmission is by jackshaft（3）Rotation pass to output shaft（4）.
2. gear case used in rail transit vertical-transmission method as described in claim 1, it is characterised in that：The first order is driven and is filled
The input shaft set（2）With jackshaft（3）It is vertically arranged, and in input shaft（2）Upper setting bevel gear one（21）, in jackshaft（3）
Bevel gear two is set（31）, make bevel gear one（21）With bevel gear two（31）Vertical Meshing, by input shaft（2）Rotation vertically pass
Pass jackshaft（3）；By the output shaft in the second gear stage（4）With jackshaft（3）It is set as parallel, wherein jackshaft（3）
It is shared with the first gear stage, and in jackshaft（3）Roller gear is set（32）, in output shaft（4）Gear wheel is set（41）,
Make roller gear（32）And gear wheel（41）Parallel engagement, by jackshaft（3）Rotation parallel pass to output shaft（4）.
3. gear case used in rail transit vertical-transmission method as claimed in claim 2, it is characterised in that：Input shaft（2）Peace
Dress uses double-row conical bearing（22）Pass through bearing insert（24）Mounted on gear housing（1）The input shaft bearing of end,
Cantilever structure is formed, input shaft is reduced（2）Length；
By in bearing insert（24）And gear housing（1）End face be arranged adjusting pad（25）Adjust input shaft（2）Axial position,
So as to adjust bevel gear sideshake.
4. gear case used in rail transit vertical-transmission method as claimed in claim 2, it is characterised in that：By in jackshaft
（3）Bevel gear two is set（31）And roller gear（32）, and bevel gear two（31）The flank of tooth towards roller gear（32）Mode
Reduce gear-box the space occupied.
5. a kind of rail traffic vertical transmission gear box, it is characterised in that：Including gear housing（1）, be located at gear housing（1）
Interior fixing device and the transmission device mounted on fixing device, transmission device include that the first gear stage and the second level are driven
Device, the first gear stage and motor axis connection, the second gear stage are connect with axle, the first gear stage and second
Gear stage shares a jackshaft（3）, jackshaft（3）It is vertically arranged with motor shaft, is arranged in parallel with axle, the first order passes
The movement of motor shaft is transmitted to jackshaft by dynamic device by vertical-transmission（3）, the second gear stage will by parallel drive
Jackshaft（3）Movement be transmitted to axle.
6. rail traffic vertical transmission gear box as claimed in claim 5, it is characterised in that：First gear stage includes
Input shaft（2）Be fixed on input shaft（2）Bevel gear one（21）, jackshaft（3）Be fixed on jackshaft（3）Bevel gear two
（31）, wherein input shaft（2）With jackshaft（3）It is vertically arranged, bevel gear one（21）With bevel gear two（31）Vertical Meshing；Second
Gear stage includes the jackshaft shared with the first gear stage（3）And it is fixed on jackshaft（3）Roller gear
（32）, further include output shaft（4）Be fixed on output shaft（4）Gear wheel（41）, wherein jackshaft（3）With output shaft（4）It is flat
Row setting, roller gear（32）And gear wheel（41）Parallel engagement.
7. rail traffic vertical transmission gear box as claimed in claim 6, it is characterised in that：Fixing device includes that input is solid
Determine device, intermediate retainer and output fixing device, input shaft（2）, jackshaft（3）And output shaft（4）Pass through fixation respectively
Device, intermediate retainer and output fixing device are mounted on gear housing（1）.
8. rail traffic vertical transmission gear box as claimed in claim 7, it is characterised in that：It includes defeated to input fixing device
Enter bearing block and the input shaft bearing in input shaft bearing Inner is set, input shaft bearing is mounted on gear housing by input shaft bearing
（1）End, input shaft（1）Gear housing is stretched out across the hole of input shaft bearing, one end（1）With motor axis connection；The fixed dress in centre
It sets including middle bearing bracket and the intermediate bearing in middle bearing bracket is set, intermediate bearing is mounted on gear by middle bearing bracket
Babinet（1）, jackshaft（3）It is fixed by intermediate bearing；Fixing device is exported to include output bearing block and be arranged in output bearing
The output bearing of seat, output bearing are mounted on gear housing by exporting bearing block（1）, output shaft（4）For axle, pass through output
Bearing is fixed.
9. rail traffic vertical transmission gear box as claimed in claim 8, it is characterised in that：Input shaft bearing is biserial circular cone
Roller bearing（22）, and in double-row conical bearing（22）Bearing insert is equipped between input shaft bearing（24）；Jackshaft
It holds as taper roll bearing one（33）, in jackshaft（3）Both ends arrange taper roll bearing one face-to-face（33）；Export bearing
For taper roll bearing two（42）, taper roll bearing two is arranged face-to-face at axle both ends（42）；
Bearing insert（24）And gear housing（1）Endface is equipped with adjustment input shaft（2）The adjusting pad of axial position.
10. rail traffic vertical transmission gear box as claimed in claim 5, it is characterised in that：Gear housing（1）For branch mailbox
Structure, including upper box（11）And lower box（12）, upper box（11）And lower box（12）Between branch mailbox angle be 30o-50o,
Flask joint passes through output shaft（4）The center of mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810328383.3A CN108443469A (en) | 2018-04-13 | 2018-04-13 | A kind of gear case used in rail transit vertical-transmission method and vertical transmission gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810328383.3A CN108443469A (en) | 2018-04-13 | 2018-04-13 | A kind of gear case used in rail transit vertical-transmission method and vertical transmission gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443469A true CN108443469A (en) | 2018-08-24 |
Family
ID=63199812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810328383.3A Pending CN108443469A (en) | 2018-04-13 | 2018-04-13 | A kind of gear case used in rail transit vertical-transmission method and vertical transmission gear box |
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| Country | Link |
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| CN (1) | CN108443469A (en) |
Cited By (1)
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| US20220333676A1 (en) * | 2018-12-28 | 2022-10-20 | Crrc Qishuyan Institute Co., Ltd. | Gearbox with novel bearing configuration for railway vehicle |
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| US11920669B2 (en) * | 2018-12-28 | 2024-03-05 | Crrc Qishuyan Institute Co., Ltd. | Gearbox with bearing configuration for rail vehicle |
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