CN107781379A - External engagement type automobile differential - Google Patents
External engagement type automobile differential Download PDFInfo
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- CN107781379A CN107781379A CN201711021551.6A CN201711021551A CN107781379A CN 107781379 A CN107781379 A CN 107781379A CN 201711021551 A CN201711021551 A CN 201711021551A CN 107781379 A CN107781379 A CN 107781379A
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- Prior art keywords
- connecting plate
- planetary
- planet wheel
- planetary gear
- bar
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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
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising 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
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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
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
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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
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
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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
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0483—Axle or inter-axle differentials
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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
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The present invention relates to automobile differential.A kind of external engagement type automobile differential, including planetary wheel carrier and two axle shaft gears for being arranged at planetary wheel carrier both ends, the driven gear that planetary wheel carrier is connected with planetary gear and drives planetary wheel carrier to rotate, planetary gear meshes together with axle shaft gear, planetary gear is linked together by planet wheel spindle with planetary wheel carrier, planetary wheel carrier, which is connected with, determines connecting plate, determine connecting plate and be provided with some first tooth connections, the side face of planet wheel spindle is provided with slide bar, slidably connected on slide bar by planet wheel spindle rotate caused by centrifugal force slide dynamic connecting plate, dynamic connecting plate is provided with can be the same as the second tooth connection that the first tooth connection meshes together, determine connecting plate and dynamic connecting plate is located at outside two axle shaft gears and planetary gear area defined.The present invention has the advantages of can making two semiaxis synchronous axial systems when the differential of two semiaxis is more than setting value, solves the problems, such as that existing differential mechanism can influence handling capacity when automobile travels on bad road.
Description
It is November 29, Application No. 2015102320085 in 2015 applying date that the application, which is, entitled " external engagement
The divisional application of formula automobile differential ".
Technical field
The present invention relates to automobile differential, more particularly to a kind of external engagement type automobile differential.
Background technology
Differential mechanism is that one kind can make rotary motion reach two axles from an axle, and makes the latter each other can be with different rotating speeds
The differential attachment of rotation.In Chinese Patent Application No. 2011800533570, publication date be August in 2013 21, entitled " electricity
The automobile differential of an existing structure, automobile differential bag are disclosed in the patent document of the locking differential of gas triggering "
Include planetary wheel carrier and two axle shaft gears in planetary wheel carrier.The left and right semiaxis of automobile during use（When for center differential
Shi Zewei antero posterior axis）One is connected to after being stretched into through half shaft mounting hole in planetary wheel carrier with two axle shaft gears correspondingly
Rise, driven by axle shaft gear to be rotated., it is necessary to inject lubricating oil to be lubricated differential mechanism to prolong during use
Long-life.
Existing difference device has the following disadvantages：When automobile travels on bad road, handling capacity can be had a strong impact on.Such as
When a driving wheel of automobile is absorbed in muddy road surface, although another driving wheel in good road surface, before automobile tends not to
Enter（It is commonly called as skidding）.Now the driving wheel original place on muddy road surface is trackslipped, the but transfixion of the wheel in good road surface.This
It is smaller because of the adhesive force between the wheel on muddy road surface and road surface, road surface can only be acted on semiaxis smaller by this wheel
The moment of reaction, therefore differential mechanism distribute to this wheel torque it is also smaller, although attached between another driving wheel and good road surface
Put forth effort larger, but the characteristics of because of mean allocation torque, this driving wheel is also assigned to the torque with slipping drive wheel equivalent,
So that driving force is not enough to overcome running resistance, automobile can not advance, and power is then consumed on slipping drive wheel.Now increase
Throttle can not only make automobile advance, and waste fuel oil on the contrary, accelerate component wear, especially aggravate tire wear.
The content of the invention
It can make two semiaxis synchronous axial systems when the differential of two semiaxis is more than setting value the invention provides a kind of
External engagement type automobile differential, handling capacity can be had a strong impact on when automobile travels on bad road by solving existing differential mechanism
The problem of.
Above technical problem is that solved by following technical proposal：A kind of external engagement type automobile differential, including row
Star wheel frame and two axle shaft gears for being arranged at planetary wheel carrier both ends, the planetary wheel carrier are connected with planetary gear and driving planet
The driven gear that wheel carrier rotates, the planetary gear mesh together with the axle shaft gear, and the planetary gear passes through planet
Wheel shaft links together with planetary wheel carrier, and the planetary wheel carrier, which is connected with, determines connecting plate, described to determine connecting plate provided with some first
Tooth connection, the side face of the planet wheel spindle are provided with slide bar, slidably connect on the slide bar and rotated by the planet wheel spindle
The dynamic connecting plate that caused centrifugal force slides, the dynamic connecting plate are provided with can mesh together with first tooth connection the
Two tooth connections, it is described to determine connecting plate and dynamic connecting plate is located at outside described two axle shaft gears and planetary gear area defined.
During use, when producing skidding, the speed difference between two semiaxis can cause the rotating speed of planet wheel spindle larger, planet
Wheel shaft rotate caused by the dynamic connecting plate of centrifugal force driving along slide bar skid off and so that the second tooth connection and the first tooth connection are nibbled
Be combined, so as to realize that two semiaxis are fixed together and synchronous axial system, after synchronous axial system planet wheel spindle can not rotate, this
When determine connecting plate and can lose centrifugal force and so that the first tooth connection and the second tooth connection separate, such folding folding and realize two
The speed discrepancy of individual axle shaft gear is controlled in setting range to improve the handling capacity of automobile（Namely prevent skidding）.
Preferably, be provided with oil-filling mechanism in the planetary gear, the oil-filling mechanism includes oil-out, gas supplementing opening, close
End socket, driving seal head seal up the first spring of oil-out, cylinder body and are slidingly sealed the piston for being connected to cylinder body, the piston
The cylinder body is divided into air cavity and oil pocket, the piston is provided with the check valve of air cavity unlatching, and the piston passes through connecting rod
Linked together with the seal head, the oil-out is connected by oil duct with the oil pocket, and the gas supplementing opening passes through air flue
It is connected with the air cavity, the oil-out is arranged at the planetary tooth top, and the seal head stretches out the planet tooth
The distance of the tooth top of wheel is more than the tooth top gap between the planetary gear and axle shaft gear.In use, lubrication is loaded onto in oil pocket
Oil, planet wheel spindle drive planetary gear rotation when rotating, and are nibbled when planetary gear rotation to the tooth provided with oil-out with axle shaft gear
When being combined, in planetary teeth groove driving seal head retraction gear, the same of the first spring energy-storage is made when sealing strip inside contracts
When also drive piston to flow to oiling towards oil pocket is mobile to drive in oil pocket lubricating oil to flow to oil-out through oil duct by connecting rod
Chamber is so as to realizing the lubrication to gear；When seal head staggers with teeth groove, seal head reseals in the presence of the first spring
Firmly oil-out, seal head movement proceduredriven piston towards air cavity move, now due in oil pocket oil part outflow,
Therefore the pressure in oil pocket is less than the pressure of air cavity, check valve is opened and causes air adds to oil pocket neutralization will be unnecessary in fueling cavity
Have recovery oil suction chamber in so that lubricating oil can reliably flow out during piston press oil pocket next time.Realize self-lubricate.
It can overcome the shortcomings of produce splash phenomena during lubrication in the prior art and cause lubricant effect to decline.
Preferably, the planetary wheel carrier is shell structure, the planetary wheel carrier and axle shaft gear surround annular seal space, described
It is filled with inert gas in annular seal space, the air pressure in the annular seal space is more than a standard atmospheric pressure.Can be in time by planet tooth
Heat caused by wheel rotation loses, and prevents temperature from rising too high and influences the friction effect of connecting plate.
Preferably, the planetary gear has a pair, the pair of planetary gear is same by planet wheel spindle described in same root
The planetary wheel carrier is linked together, and circular interior bar, the outer peripheral face of the interior bar are rotationally equipped with the planet wheel spindle
Provided with the first frictional layer, the inner surface of the planet wheel spindle is provided with the second frictional layer, and the interior bar and planet wheel spindle pass through described
First frictional layer and the second frictional layer abut together.Planet wheel spindle is caused to produce when two planetary rotating speeds are inconsistent
During distortion, planet wheel spindle can produce rotation relative to interior bar, during rotation external friction layer and the second frictional layer produce friction energy-absorbing and
Torsional forces is eliminated, so as to play a part of improving the distortion resistance of planet wheel spindle.
Preferably, the interior bar includes left bar and right bar, the left end of the left bar is by left energy-absorbing spring with the row
Spider gear shaft links together, and the right side of the left bar is provided with some first commutating tooths circumferentially distributed along left bar, the right bar
Right-hand member linked together by right energy-absorbing spring with the planet wheel spindle, the left side of the right bar is provided with some along right bar week
To the second commutating tooth of distribution, first commutating tooth and the second commutating tooth mesh together.Driven when planet wheel spindle distorts
When interior bar also produces distortion, right bar and left bar can be driven circumferentially spaced in the presence of the first commutating tooth and the second commutating tooth,
It can cause energy-absorbing camber of spring and energy-absorbing when separating.Planet wheel spindle distortion resistance is further passed through.
Preferably, rubbing agent is filled between the planet wheel spindle and interior bar.First frictional layer and during use
Two frictional layers produce abrasion and cause rubbing agent during friction energy-absorbing effect decline to be filled into the first frictional layer and the second friction
Cause that the first frictional layer and the second frictional layer remain on good friction energy-absorbing effect between layer, so as to solve frictional force
The problem of decline is unable to easily adjust the abutting power between the first frictional layer and the second frictional layer and adjusts frictional force.
Preferably, the dynamic connecting plate is provided with cushion pad, the cushion pad is loop configuration, the second connection tooth position
In in the cushion pad area defined.Anti- stop connecting plate and it can determine to produce excessive impact during connecting plate closes up
And tooth connection is caused to be damaged.
Preferably, the cushion pad is provided with vacuum breaker passage and the first absorption ring along the extension of cushion pad bearing of trend,
The second absorption ring along the extension of cushion pad bearing of trend, the first absorption ring and the second absorption are provided with the first absorption ring
Form dust-absorbing groove between ring, both inner spaces of the dust-absorbing groove and the second absorption ring are all by the vacuum breaker passage the same as the
The exterior space of one absorption ring is connected, and is provided with what is extended along the tangential direction of the planetary gear shaft in the vacuum breaker passage
Flat segments, the flat segments are interior to be provided with by centrifugal force movement caused by planet wheel spindle rotation to block described break very
The plug of empty passage and the valve opening spring for opening plug.It is dynamic to determine when connecting plate closes up except normal frictional force is fixed
Outside, also the absorption ring of extruding first and second adsorbs ring simultaneously so that is all formed in the inner space of the first absorption ring and dust-absorbing groove
Negative pressure, namely adsorbed together by the first absorption ring and the second absorption ring to be fixed.Rushed when vibrated or moment
When hitting power and making to produce moment partial disengagement at the absorption of the first absorption ring, in the presence of the second absorption ring, work as moment impact
The first absorption ring can again recover and be adsorbed after power disappears so that absorption ring is produced local moment by moment impact and broken
Phenomenon is will not fall off when opening, and the slippage of absorption affinity smaller can remain on good suction-operated, therefore it is fixed
When good reliability, being not easy between connecting plate to skid separates.Antivibration kinetic force when connecting plate is close together can be improved
And reliability.The technical scheme when connecting plate need separate when sucker can timely automated vacuum breaker, so as to will not interfere with differential
The normal differential action of device.
Preferably, if the dry elasticity that the first absorption ring and the second absorption ring link together is provided with the dust-absorbing groove
Connection strap, the elastomeric connector strip are distributed along the first absorption ring bearing of trend.When the first absorption ring and the second absorption ring all adsorb
When upper, elastomeric connector strip is elongated and energy storage, and the energy production promotes the trend that the first absorption ring moves towards absorbate, makes
When proper first absorption ring produces moment disconnection, the first absorption ring is accelerated to return to adsorbed state.Namely it reduce further receipts
The possibility separated to connecting plate during moment impact, in other words namely improve when connecting plate is close together anti-moment punching
Hit ability.
Preferably, the absorption end of the first absorption ring is stretched out at the absorption end of the second absorption ring.During absorption can
It is more preferable by property.
Present invention tool has the advantage that：The speed discrepancy of two axle shaft gears can be limited in setting difference range, when
When causing planetary gear rotating speed too fast more than setting value two semiaxis can synchronous axial system, improve automobile handling capacity and
Being capable of anti-slip；Dynamic connecting plate and dynamic connecting plate are located at outside two axle shaft gears and planetary gear area defined, during connection
It is convenient.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one.
Fig. 2 is the schematic diagram of the embodiment of the present invention two.
Fig. 3 is the schematic elevation view of the dynamic connecting plate in the embodiment of the present invention three.
Fig. 4 is Fig. 3 C-C schematic cross-sectional views.
Fig. 5 is the close-up schematic view at Fig. 4 D.
Fig. 6 is the schematic diagram of planetary gear and axle shaft gear when meshing together in the embodiment of the present invention four.
Fig. 7 is the close-up schematic view at Fig. 6 A.
Fig. 8 is the close-up schematic view at Fig. 6 B.
Fig. 9 is the schematic diagram that the real present invention of the present invention applies the planet wheel spindle in example five.
In figure：Planetary wheel carrier 1, driven gear 2, determine connecting plate 3, the first tooth connection 31, dynamic connecting plate 4, sliding sleeve 41, second
Tooth connection 42, planet wheel spindle 5, interior bar 51, left bar 511, right bar 512, external friction layer 513, the commutation of the first commutating tooth 514, second
Tooth 515, interior frictional layer 52, left energy-absorbing spring 53, right energy-absorbing spring 54, slide bar 55, back-moving spring 56, planetary gear 6, tooth top
61st, axle shaft gear 7, axle journal 71, internal spline 72, closure 73, oil-filling mechanism 8, oil-out 81, gas supplementing opening 82, seal head 83,
One spring 84, cylinder body 85, air cavity 851, oil pocket 852, piston 86, check valve 861, connecting rod 862, oil duct 87, air flue 88, cushion pad
9th, the first absorption ring 91, first adsorbs the absorption end 921 of absorption end 911, the second absorption absorption ring of ring 92, second of ring, dust suction
Groove 93, elastomeric connector strip 94, vacuum breaker passage 95, flat segments 951, plug 96, valve opening spring 97, seal head stretch out planetary gear
The distance L1 of tooth top, tooth top gap L2, two axle shaft gears and planetary gear between planetary gear and axle shaft gear surrounded
Region S1, annular seal space S2.
Embodiment
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Embodiment one, referring to Fig. 1, a kind of external engagement type automobile differential, including planetary wheel carrier 1.Planetary wheel carrier 1 is shell
Body structure.The left and right ends of planetary wheel carrier 1 are respectively rotatably connected to an axle shaft gear 7.Axle shaft gear 7 is provided with axle journal 71.Semiaxis
Gear 7 is rotationally connected with planetary wheel carrier 1 by axle journal 71.Axle journal 71 is tubular structure.Internal spline 72 is provided with axle journal 71.Planet
Wheel carrier 1 is externally connected to driven gear 2.Driven gear 2 is gear ring.Planetary wheel carrier 1 is also rotatably connected to planet wheel spindle 5.OK
The both ends of spider gear shaft 5 are respectively connected with a planetary gear 6.Planetary gear 6 all meshes together with two axle shaft gears 7 simultaneously.
Planetary wheel carrier 1, which is also connected with, determines connecting plate 3.Determine connecting plate 3 and be located at two axle shaft gears and planetary gear area defined S1
Outside.It is Cylindrical housing structure to determine connecting plate 3.The inner surface for determining connecting plate 3 is provided with some first tooth connections 31.Planet wheel spindle 51
It is provided with some slide bars 55.Slide bar 55 is circumferentially distributed along planet wheel spindle 5.Slide bar 55 radially extends along planet wheel spindle 5（In order to
It can preferably be realized and skidded off using centrifugal force, tangential direction of the slide bar 55 along planet wheel spindle 5 extends then best results）.Slide bar
55 are arranged with sliding sleeve 41.Back-moving spring 56 is provided between slide bar 5 and sliding sleeve 41.Sliding sleeve 41 is arranged at dynamic connecting plate 4.Dynamic connecting plate
4 outside two axle shaft gears and planetary gear area defined S1.The outer surface of dynamic connecting plate 4 is provided with some second connections
Tooth 42.The outer surface of dynamic connecting plate 4 is the face of cylinder.
In use, two semiaxis（For left and right semiaxis or antero posterior axis）Stretch into axle journal 71 mesh together with internal spline 72 and
Linked together with the present invention.Driving gear on power input shaft meshes together with driven gear 2 and drives planetary wheel carrier 1
One axle journal 71 rotates for axle, and planetary wheel carrier 1 is pulled axle shaft gear 7 by planetary gear 6 and rotated with axle journal 71 for axle.Axle shaft gear
7 two semiaxis of driving rotate, when two axle shaft gears generation rotating speeds are inconsistent, also with planet while planetary gear 6 revolves round the sun
Wheel shaft 5 is that axle carries out from then realizes differential.When differential be more than setting value i.e. skid when, planet wheel spindle 5 rotate caused by from
Mental and physical efforts cause dynamic connecting plate 4 towards determine connecting plate 3 to slide and so that the second tooth connection 42 and the first tooth connection 31 mesh together,
Two axle shaft gears 7 are fixed together so as to realize（That is synchronous axial system）, cause skidding can not produce.Skid after eliminating,
The rotating speed of planet wheel spindle 5 declines the centrifugal force that dynamic connecting plate 4 is subject to and declined, in the presence of back-moving spring 56, dynamic connecting plate 4
Away from connecting plate 3 is determined so that the second tooth connection 42 and the first tooth connection 31 depart from, differential mechanism recovers normal differential action.
Embodiment two, the difference with embodiment one are：
Referring to Fig. 2, the inner of axle journal 71 is provided with closure 73.Planetary wheel carrier 1 and axle shaft gear 7 surround annular seal space S2.Annular seal space
Inert gas is filled with S2.Air pressure in annular seal space S2 is more than a standard atmospheric pressure.Annular seal space S2 is also filled with lubricating oil.
Embodiment three, the difference with embodiment two are：
Referring to Fig. 3, dynamic connecting plate 4 is provided with cushion pad 9.Cushion pad 9 is loop configuration.First tooth connection 42 is located at the institute of cushion pad 9
In the region surrounded.Cushion pad 9 is provided with the first absorption ring 91.First absorption ring 91 extends along the bearing of trend of cushion pad 9.First inhales
The second absorption ring 92 is provided with follower ring 91.Second absorption ring 92 extends along cushion pad bearing of trend.First absorption ring 91 and second
Two annular dust-absorbing grooves 93 are formed between absorption ring 92.Two dust-absorbing grooves 93 are positioned at the both sides of the second absorption width of ring 92.
Some elastomeric connector strips 94 together are provided with dust-absorbing groove 93.First absorption ring 91 and second is adsorbed ring by elastomeric connector strip 94
92 link together.Elastomeric connector strip 94 is distributed along the first absorption ring 91 bearing of trend.
Referring to Fig. 4, cushion pad 9 is provided with vacuum breaker passage 95.Dust-absorbing groove 93 and second adsorbs both inner spaces of ring 92
All it is connected by vacuum breaker passage 95 with the exterior space of the first absorption ring 91, is specially disjunctor in sleeve pipe 41.So inhale
The gas discharged when attached can play a part of accelerating to move connecting plate 4 and determine connecting plate to close.
Flat segments 951 are provided with vacuum breaker passage 95.Tangential direction extension of the flat segments 951 along planetary gear shaft 5.It is broken true
Plug 96 is provided with empty passage 95.Plug 96 is located in flat segments 951.The first absorption is stretched out at the absorption end 921 of second absorption ring
The absorption end 911 of ring.The absorption end 911 of first absorption ring exceeds the first tooth connection 42.
Referring to Fig. 5, valve opening spring 97 is additionally provided with vacuum breaker passage 95.Valve opening spring 97 is used to make plug 96 not block
Vacuum breaker passage 95.Elastomeric connector strip 94 and first is adsorbed ring 91 and linked together in a manner of integrative-structure.Elastomeric connector strip
94 and second absorption ring 92 linked together in a manner of integrative-structure.
During use, connecting plate 3 is determined together under the influence of centrifugal force in dynamic connecting plate 4（Referring to Fig. 1）Mesh together
Before, the first absorption ring 91 and second, which adsorbs ring 92 and first adsorbed, to be determined connecting plate and plays and alleviate impact and reinforce connection effect
Effect.Centrifugal force overcomes the elastic force of valve opening spring 97 to enable plug 96 to be maintained at the state for closing vacuum breaker passage 95.
When centrifugal force declines and needs differential mechanism to recover normal condition, valve opening spring 97 overcome centrifugal force and so that plug 96 is opened,
So that absorption affinity does not influence dynamic connecting plate 4 and determines the normal separation of connecting plate.
Example IV, the difference with embodiment three are：
Referring to Fig. 6, oil-filling mechanism 8 is provided with planetary gear 6.The number of oil-filling mechanism 8 is equal with the number of teeth of planetary gear 6.
Referring to Fig. 7, oil-filling mechanism 8 includes oil-out 81, gas supplementing opening 82, seal head 83, the first spring 84, cylinder body 85 and lived
Plug 86.The oil-out 81 and gas supplementing opening 82 of same oil-filling mechanism are arranged on the tooth top 61 of the same tooth of planetary gear 6, are same
The tooth top of one tooth only sets the oil-out and gas supplementing opening of an oil-filling mechanism, i.e., oil-filling mechanism and planetary gear in the present embodiment
6 tooth is set correspondingly.The spring 84 of seal head 83 and first is arranged in oil-out 81, in the work of the first spring 84
Tooth top 61 is stretched out with lower seal head 83 and seals up oil-out.The distance L1 that seal head stretches out planetary tooth top is more than planet
Tooth top gap L2 between gear and axle shaft gear（Referring to Fig. 8）.Cylinder body 85 is formed at planetary gear 6 in a manner of integrative-structure
It is interior, the chamber as in planetary gear 6.Piston 86, which is slidingly sealed, is connected to cylinder body 85.Cylinder body 85 is divided into air cavity 851 by piston 86
With oil pocket 852.Piston 86 is provided with the check valve 861 of the unlatching of air cavity 851.Piston 86 is connected by connecting rod 862 with seal head 83
It is connected together.Connecting rod 862 links together with being slidingly sealed between planetary gear 6 so that oil-out 81 disconnects with air cavity 851.
Oil-out 81 is connected by oil duct 87 with oil pocket 852.Gas supplementing opening 82 is connected by air flue 88 with air cavity 851.The He of oil duct 87
Air flue 88 is formed in a manner of integrative-structure in planetary gear 6, as the hole in planetary gear 6.
The process that the present invention lubricates is：
Referring to Fig. 6 and Fig. 8, during planetary gear 6 rotates, the bottom surface crush seal first 83 of the teeth groove of axle shaft gear 7 is to row
The contract of star gear 6, seal head 83 shrink and so that oil-out 81 open and cause the energy storage of the first spring 84.
Referring to Fig. 7, also piston 86 is driven to be moved towards oil pocket 852 by connecting rod 862 when seal head 83 shrinks, oil pocket 852
Interior pressure rise cause check valve 861 close and the lubricating oil in oil pocket 852 through oil duct 87 flow to oil-out 81 and from fuel-displaced
Flow out in mouth 81 and realize lubrication.
When axle shaft gear loses the squeezing action to seal head 83, moved in the presence of the first spring 84 outside seal head 83
And seal up oil-out 81, drive piston 86 to be moved towards air cavity 851 by connecting rod 862 when seal head 83 stretches out, oil pocket 852
Interior pressure declines and the pressure in air cavity 851 rises so that check valve 861 is opened, unnecessary oil in air and fueling cavity 56
Oil pocket 852 is flowed to through gas supplementing opening 82, air flue 88 and check valve 861 so that the pressure in oil pocket 852 can maintain same gear
Air pressure in outside is equal, can squeeze out lubricating oil when being moved so as to piston 86 towards oil pocket 852 next time.
Therefore lubricating oil need not be added in planetary wheel carrier in the present embodiment, realizes the dry-type working of connecting plate, rubs
Wipe good reliability during adhesive.
Embodiment five, the difference with example IV are：
Referring to Fig. 9, the interior bar 51 of circle is equipped with planet wheel spindle 5.Interior bar 51 is tubular structure.The inner surface of planet wheel spindle 5
Provided with interior frictional layer 52.Interior bar 51 includes left bar 511 and right bar 512.The outer peripheral face of left bar 511 and right bar 512 is designed with outer rub
Wipe layer 513.Circumference of the external friction layer 513 along interior bar 51 is covered with interior bar 51.The left end of left bar 511 is gone together by left energy-absorbing spring 53
Spider gear shaft 5 links together.The right side of left bar 511 is provided with some first commutating tooths 514 circumferentially distributed along left bar.Right bar
512 right-hand member is linked together by right energy-absorbing spring 54 with planet wheel spindle 5.The left side of right bar 512 is provided with some along right bar
The second circumferentially distributed commutating tooth 515.First commutating tooth 514 and the second commutating tooth 515 mesh together.Left bar 511 and right bar
512 are also all abutted with interior frictional layer 52 by external friction layer 513 and are rotatably connected together and same planet wheel spindle 5 together.OK
The rubbing agent of liquid is filled with spider gear shaft 5.
When planet wheel spindle 5 produces distortion, planet wheel spindle 5 can produce relative rotation relative to interior bar 51, in motion process
External friction layer 513 and interior frictional layer 52 rub and consume energy and play a part of preventing twisting.If the torsion of planet wheel spindle 5
Square and when result in interior bar 51 and also producing twisting together, now left bar 511 and right bar 512 can be in the first commutating tooths 514 and second
Axially spaced under the guide effect of commutating tooth 515, separation process is not only able to so that external friction layer 513 is the same as interior frictional layer 52
Produce friction and energy-absorbing, left energy-absorbing spring 53 and right energy-absorbing spring 54 can also be promoted to deform and energy-absorbing, play energy-absorbing and prevent
Acted on caused by reversing, so as to realize the distortion resistance for improving planet wheel spindle.And right energy-absorbing spring 54 and left energy-absorbing spring 53
The work for repairing planet wheel spindle 5 can also be played.
Claims (8)
1. a kind of external engagement type automobile differential, including planetary wheel carrier and two half axle gears for being arranged at planetary wheel carrier both ends
Wheel, the driven gear that the planetary wheel carrier is connected with planetary gear and drives planetary wheel carrier to rotate, the planetary gear is the same as described
Axle shaft gear meshes together, and the planetary gear is linked together by planet wheel spindle with planetary wheel carrier, it is characterised in that institute
State planetary wheel carrier and be connected with and determine connecting plate, it is described to determine connecting plate and be provided with some first tooth connections, on the side face of the planet wheel spindle
Provided with slide bar, the dynamic connection slided by centrifugal force caused by planet wheel spindle rotation is slidably connected on the slide bar
Plate, the dynamic connecting plate is provided with the second tooth connection that can be meshed together with first tooth connection, described to determine connecting plate and move
Connecting plate is located at outside described two axle shaft gears and planetary gear area defined, and fuel charger is provided with the planetary gear
Structure, the oil-filling mechanism include the first spring, the cylinder body that oil-out, gas supplementing opening, seal head, driving seal head seal up oil-out
Be slidingly sealed the piston that is connected to cylinder body, the cylinder body is divided into air cavity and oil pocket by the piston, and the piston is provided with court
The check valve opened to air cavity, the piston are linked together by connecting rod with the seal head, and the oil-out passes through oil duct
It is connected with the oil pocket, the gas supplementing opening is connected by air flue with the air cavity, and the oil-out is arranged at the planet
The tooth top of gear, the seal head stretch out the planetary tooth top distance be more than the planetary gear and axle shaft gear it
Between tooth top gap.
2. external engagement type automobile differential according to claim 1, it is characterised in that the planetary gear has a pair,
The pair of planetary gear is linked together by planet wheel spindle described in same root with the planetary wheel carrier, in the planet wheel spindle
Circular interior bar is rotationally equipped with, the outer peripheral face of the interior bar is provided with the first frictional layer, and the inner surface of the planet wheel spindle is set
Together with thering is the second frictional layer, the interior bar and planet wheel spindle to abut by first frictional layer and the second frictional layer.
3. external engagement type automobile differential according to claim 2, it is characterised in that the interior bar includes left bar and the right side
Bar, the left end of the left bar are linked together by left energy-absorbing spring with the planet wheel spindle, and the right side of the left bar is provided with
Some first commutating tooths circumferentially distributed along left bar, the right-hand member of the right bar are connected by right energy-absorbing spring with the planet wheel spindle
Together, the left side of the right bar is provided with some second commutating tooths circumferentially distributed along right bar, first commutating tooth and
Two commutating tooths mesh together.
4. external engagement type automobile differential according to claim 2, it is characterised in that the planet wheel spindle and interior bar it
Between be filled with rubbing agent.
5. external engagement type automobile differential according to claim 1, it is characterised in that the dynamic connecting plate is provided with buffering
Pad, the cushion pad is loop configuration, and second tooth connection is located in the cushion pad area defined.
6. external engagement type automobile differential according to claim 5, it is characterised in that the cushion pad is provided with vacuum breaker
Passage and the first absorption ring along the extension of cushion pad bearing of trend, interior be provided with of the first absorption ring are prolonged along cushion pad bearing of trend
The the second absorption ring stretched, dust-absorbing groove, the inner space of the dust-absorbing groove are formed between the first absorption ring and the second absorption ring
All it is connected with both inner spaces of the second absorption ring by the vacuum breaker passage with the exterior space of the first absorption ring, institute
The flat segments for being provided with vacuum breaker passage and extending along the tangential direction of the planetary gear shaft are stated, is provided with and passes through in the flat segments
Centrifugal force caused by the planet wheel spindle rotation is mobile and blocks the plug of the vacuum breaker passage and makes what plug was opened
Valve opening spring.
7. external engagement type automobile differential according to claim 6, it is characterised in that be provided with the in the dust-absorbing groove
Some elastomeric connector strips that one absorption ring and the second absorption ring link together, the elastomeric connector strip extend along the first absorption ring
Directional spreding.
8. external engagement type automobile differential according to claim 6, it is characterised in that the absorption of the second absorption ring
The absorption end of the first absorption ring is stretched out at end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711021551.6A CN107781379A (en) | 2015-05-09 | 2015-05-09 | External engagement type automobile differential |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232008.5A CN105042027B (en) | 2015-05-09 | 2015-05-09 | External engagement type automobile differential |
| CN201711021551.6A CN107781379A (en) | 2015-05-09 | 2015-05-09 | External engagement type automobile differential |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510232008.5A Division CN105042027B (en) | 2015-05-09 | 2015-05-09 | External engagement type automobile differential |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107781379A true CN107781379A (en) | 2018-03-09 |
Family
ID=54448846
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510232008.5A Active CN105042027B (en) | 2015-05-09 | 2015-05-09 | External engagement type automobile differential |
| CN201711021551.6A Pending CN107781379A (en) | 2015-05-09 | 2015-05-09 | External engagement type automobile differential |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510232008.5A Active CN105042027B (en) | 2015-05-09 | 2015-05-09 | External engagement type automobile differential |
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| Country | Link |
|---|---|
| CN (2) | CN105042027B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219974A (en) * | 2019-07-05 | 2019-09-10 | 青岛港国际股份有限公司 | The lubricating arrangement of horizontal rotation bull gear tooth post |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60159448A (en) * | 1984-01-31 | 1985-08-20 | Tochigi Fuji Ind Co Ltd | Differential gear |
| JPH0718480B2 (en) * | 1986-08-18 | 1995-03-06 | 本田技研工業株式会社 | Differential |
| CN201053484Y (en) * | 2006-12-05 | 2008-04-30 | 田春生 | Centrifugal type automatic slip-proof device |
| CN104088981B (en) * | 2014-07-25 | 2015-04-29 | 湖南农业大学 | Planetary-gear-type equal-ratio-output inter-axle slip-limiting differential mechanism for vehicle |
| CN204692505U (en) * | 2015-05-09 | 2015-10-07 | 陈学福 | A kind of external engagement type automobile differential |
-
2015
- 2015-05-09 CN CN201510232008.5A patent/CN105042027B/en active Active
- 2015-05-09 CN CN201711021551.6A patent/CN107781379A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219974A (en) * | 2019-07-05 | 2019-09-10 | 青岛港国际股份有限公司 | The lubricating arrangement of horizontal rotation bull gear tooth post |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105042027A (en) | 2015-11-11 |
| CN105042027B (en) | 2017-11-07 |
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