CN104405850B - Differential - Google Patents
Differential Download PDFInfo
- Publication number
- CN104405850B CN104405850B CN201410477597.9A CN201410477597A CN104405850B CN 104405850 B CN104405850 B CN 104405850B CN 201410477597 A CN201410477597 A CN 201410477597A CN 104405850 B CN104405850 B CN 104405850B
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- CN
- China
- Prior art keywords
- differential
- oil
- cover
- space
- differential mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16H57/04—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
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
-
- 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
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
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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
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
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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
Abstract
The invention relates to a differential, and aims to solve the defect of weak lubricating performance of a traditional differential. The differential comprises a differential shell formed by a differential case and a differential cover through connecting bolts, wherein a mounting space is formed in the differential shell; a differential shaft and a half-axle gear are mounted in the mounting space; a bevel gear is mounted on the differential shaft and is engaged with the half-axle gear; the differential cover comprises a cover plate, and reinforcement ribs arranged at the outer side of the cover plate and radiating from the center of the cover plate in the radial direction; at least one baffle plate is arranged at the outer side of the differential cover; the baffle plate, the reinforcement rib and the cover plate form at least one oil scooping space with an opening; and each oil scooping space is communicated with the mounting space through an oil passing hole in the cover plate. The internal oil level of the differential is slightly higher than the external oil level; the fluidity of oil is good; the part lubrication is full; the oil is easily stored; the parts of the differential are difficult to wear; the oil temperature is low; impurities in the oil are few; and a transmission piece is longer in service life.
Description
Technical field
The present invention relates to a kind of driving member, the differential mechanism that more particularly, to a kind of drive axle uses.
Background technology
At present drive axle differential mechanism no active lubricating arrangement, differential mechanism includes differential carrier, differential cover, differential cover and
Differential carrier by connecting bolt constitute an installing space, axle shaft gear, axle shaft gear pad, bevel gear, bevel gear pad,
Differential axle is arranged in this installing space, and two of which axle shaft gear relies on differential carrier and differential cover supporting respectively, partly
Shaft gear relies on the fit clearance between differential carrier and differential cover little respectively.For making fluid be easily accessible bevel gear endoporus
Place, bevel gear has lubrication through hole.Oil through is all had on differential carrier and differential cover, makes the lubricating oil with outside in differential mechanism
Liquid phase is led to.
In existing differential mechanism, all there is oil through due on differential carrier and differential cover, inside and outside oil level maintains an equal level and oily
Liquid poor fluidity, the internal oil storage space of differential mechanism is little, no oil storage space between bevel gear inner radius and differential axle, axle shaft gear with
Differential carrier, differential cover gap are little, thus causing the wear problem of differential mechanism part, are mainly reflected in differential carrier, differential
Between device lid and axle shaft gear, between axle shaft gear and axle shaft gear pad, between bevel gear and bevel gear pad, bevel gear and differential mechanism
The abrasion of between centers, on the one hand abrasion can cause the rising of oil temperature, and the iron filings that on the other hand abrasion produces can pollute fluid, in addition moistens
Lubricating oil liquid poor fluidity also brings along the rising of oil temperature, and problem above all can make the service life reduction of driving member.
Content of the invention
Present invention aims to the shortcoming of existing differential mechanism greasy property difference and provide a kind of greasy property good, resistance to
The differential mechanism of abrasion.
The technical scheme is that and be achieved in that: construct a kind of differential mechanism, lead to including by differential carrier, differential cover
Cross connecting bolt and constitute differential casing, there is in differential carrier body an installing space, difference is installed in installing space
Fast device axle and axle shaft gear, differential axle is provided with bevel gear, and axle shaft gear is engaged with described bevel gear, differential cover bag
Include cover plate and from the reinforcement of cover plate central radial radiation setting outside cover plate, the outside of differential cover is provided with least one
Block baffle plate, baffle plate and reinforcement, cover plate constitute the spoon oil space that at least one has opening, and each spoonful of oily space is passed through to be arranged on
On cover plate, oil through is connected with installing space.In the present invention spoon oil space with differential mechanism rotation and spoon is oily, the oil of institute's spoon
Entered into inside differential mechanism by oil through, the gear in differential mechanism is lubricated.Due to there being spoon oil space, outside differential mechanism
Fluid can effectively enter inside differential mechanism, thus playing more effective lubrication.
In the differential mechanism of the present invention, 50% ~ 80% area above each oil through is covered by baffle plate, and that is, baffle plate is in lid
Upright projection region on plate can cover 50% ~ 80% oil through area.Keep such a dead area, can fully make oil
Liquid is entered into inside differential mechanism by oil through.
In the differential mechanism of the present invention, the radial direction inner side that oil through is located in spoon oil space, when spoon oil space turns
When moving to bottom, oil through is then in highest position, is so conducive to keeping the fluid level height in differential mechanism, improves
Lubricant effect.
In the differential mechanism of the present invention, sphere inside differential cover is provided with oil storage corresponding with oil through number
Chamber, oil through corresponding with the connection of shoe cream room.Inside differential cover, the shoe cream room of setting can increase in differential mechanism
Oil reserve, improve lubricant effect.Multiple shoe cream rooms are equally also equipped with the inner side sphere of differential carrier, increase transmission case
The oil reserve in internal portion.
In the differential mechanism of the present invention, baffle plate respectively constitutes a spoon oil space with reinforcement, cover plate in the both sides of reinforcement,
Opening direction positioned at two spoon oil spaces of reinforcement both sides is contrary, and each spoonful of oily space is each via the oil through on cover plate
Connect with installing space.So no matter differential mechanism forward or reverse, spoon oil space all can be strengthened fluid and enter into inside differential mechanism.
In the differential mechanism of foregoing invention, baffle plate is two pieces and arranges with regard to the symmetrical assembling of cover plate central.
In the differential mechanism of the present invention, bevel gear is not communicated with the oil through at bevel gear two ends, differential axle and cone
For flat position at bore cooperation, flat bit width and diameter are than for 0.85 ~ 0.95.By differential axle is arranged to flat position, from
And form shoe cream room between differential axle and bevel gear, store lubricating oil, improve lubricant effect.
In the differential mechanism of the present invention, the unilateral gap of the rotating shaft of axle shaft gear and differential casing cooperation for 0.5 ~
1.5mm.Make fluid well into its gap, prevent its parts depreciation, axle shaft gear relies on bevel gear supporting.
In the differential mechanism of the present invention, several shoe cream rooms are provided with the sphere inside differential carrier.In differential mechanism
The oil through of connection differential carrier inside and outside is not had on shell.
The present invention compared with prior art, advantages of the present invention: no oil through on differential carrier, differential cover has logical oil
Hole and reinforcement, and installation baffle plate formation spoon oil space is bolted on its reinforcement, increase and enter in differential mechanism
Fluid amount, the internal oil storage space of differential carrier and differential cover increases, and both pass through bolt-connection, at axle shaft gear axle journal with
There is certain gap between differential carrier, differential cover, no oil through on bevel gear, there is flat bit architecture in the middle part of differential axle, with cone
Gear internal diameter defines oil storage space.It is less that the present invention solves oil storage space in existing driving bridge for engineering machinery differential mechanism, oil
Liquid is few and poor fluidity, the insufficient problem of part lubrication, thus reducing parts depreciation, improves the service life of differential mechanism.
Brief description
Fig. 1 is the structural representation of the differential mechanism of the new lubrication system of the present invention；
Fig. 2 is the partial enlarged drawing at a of Fig. 1；
Fig. 3 is the outboard structure schematic diagram of differential cover；
Fig. 4 is the inside structure schematic diagram of differential cover；
Fig. 5 is the left view of Fig. 1；
Fig. 6 is the outboard structure schematic diagram of differential carrier；
Fig. 7 is the inside structure schematic diagram of differential carrier；
Fig. 8 is the structural representation of differential axle；
Fig. 9 is the b-b sectional view of Fig. 8.
In figure parts title and sequence number:
Baffle plate installation bolt 1, baffle plate 2, differential cover 3, axle shaft gear pad 4, axle shaft gear 5, bevel gear 6, differential mechanism
Axle 7, bevel gear pad 8, connecting bolt 9, differential carrier 11, oil through 12, reinforcement 13, shoe cream room 14.
Specific embodiment
Specific embodiments are described below in conjunction with the accompanying drawings.
A kind of differential mechanism of new lubrication system, as shown in figure 1, include differential carrier 11, differential cover 3, baffle plate 2, semiaxis
Gear 5, axle shaft gear pad 4, bevel gear 6, bevel gear pad 8, differential axle 7, baffle plate 2 is installed by baffle plate installation bolt 1
With differential cover 3, installation is connected by attachment bolt 9 in the outside of differential cover 3, differential carrier 11, constitutes one and sky is installed
Between, differential axle 7 is arranged in installing space, and bevel gear 6 is installed in rotation on differential axle 7, and passes through bevel gear pad
Piece 8 positions, and axle shaft gear 5 is engaged with bevel gear 6, is positioned by axle shaft gear pad 4.Connection is not had on differential carrier 11 poor
Oil through inside and outside fast device housing.
As shown in Figure 3, differential cover 3 is made up of cover plate 31 and reinforcement 13, and wherein reinforcement is from the center-diameter of cover plate
To radiation setting.As shown in figure 5, being provided with two pieces of baffle plates 2 by baffle plate installation bolt 1 on differential cover 3, two pieces of baffle plates close
It is left and right symmetrically arranged setting in the center of differential cover 3, reinforcement 13 during the middle part of every piece of baffle plate, every piece of baffle plate 2 is in reinforcement
Both sides each constitute a spoon oil space with opening with reinforcement 13, cover plate 31.The spoon oil of same reinforcement both sides is empty
Between opening direction contrary, form a pair two-way spoon oil space clockwise and counterclockwise.Four oil throughs are arranged on cover plate 31
12, a spoon oil space is connected by each oil through with inside differential mechanism.There is an oil through 12 in each spoonful of oily space, gear
Plate upright projection region on the cover board can cover 50% ~ 80% oil through area.The footpath that oil through is located in spoon oil space
To direction inner side, when spoon oil spatial rotational is to bottom, oil through is then in highest position.By baffle plate 2 and differential
No matter the two-way spoon oil space that on device lid 3, reinforcement 13 is formed, all actively can be scooped into fluid during differential mechanism forward or reverse, pass through
Oil through 12 on differential cover 3 enters inside differential mechanism, and due to no oil through on differential carrier 11, fluid cannot be from differential mechanism
Shell 11 side is flowed out, and the baffle plate 2 on differential cover 3 stops fluid to flow out from differential lid 3 side to a certain extent simultaneously, so that
Obtain the internal a little higher than outside of oil level of differential mechanism, and the good fluidity of fluid.
As shown in accompanying drawing 4 and 7, differential carrier 11 and the internal sphere of differential cover 3 respectively increase by 4 crescent shoe cream rooms
14, by increasing oil storage space, improve the lubricating condition of its inner body, the wherein shoe cream room on differential cover 3 and oil through
Connection.
As shown in Figure 2, at axle shaft gear 5 axle journal it is its rotating shaft and differential carrier 11, the unilateral gap α of differential cover 3
For 0.5 ~ 1.5mm, make fluid well into its gap, prevent its parts depreciation, axle shaft gear 5 relies on bevel gear 6 to support.Cone tooth
No oil through on wheel 6, as shown in accompanying drawing 8 and 9, is flat position at differential axle 7 and bevel gear 6 inner hole, flat bit width γ with
Diameter β ratio for 0.85 ~ 0.95, forms oil storage space between bevel gear and differential axle, prevents its parts depreciation.On employing
State technical scheme, the present invention compared with prior art has the advantages that the internal a little higher than outside of oil level of differential mechanism, fluid
Good fluidity, fully, fluid easily stores part lubrication, makes that differential mechanism part is not easy to wear, and oil temperature is low, and in fluid, impurity is few, from
And make driving member have higher service life.
Claims (10)
1. a kind of differential mechanism, constitutes differential casing including by differential carrier, differential cover by connecting bolt, in differential carrier
There is an installing space in vivo, differential axle and axle shaft gear are installed in installing space, differential axle is provided with cone
Gear, axle shaft gear is engaged with described bevel gear, and described differential cover includes cover plate and from cover plate central footpath outside cover plate
To radiation setting reinforcement it is characterised in that the outside of described differential cover is provided with least one piece baffle plate, described baffle plate with
Described reinforcement, cover plate constitute at least one and have opening and fluid can be scooped into spoon therein oil space, each spoonful of oily space
By setting, oil through is connected with installing space on the cover board.
2. differential mechanism according to claim 1 is it is characterised in that 50%～80% area above each oil through is by institute
State baffle plate to be covered.
3. differential mechanism according to claim 1 it is characterised in that described oil through be located at spoon oil space in radial direction
Inner side.
4. differential mechanism according to claim 1 is it is characterised in that be provided with and oil through on sphere inside differential cover
The corresponding shoe cream room of number, oil through corresponding with the connection of shoe cream room.
5. differential mechanism according to any one of claim 1 to 4 is it is characterised in that described baffle plate and described reinforcement, lid
Plate is in one spoon oil space of each composition in the both sides of described reinforcement, the opening direction in the oily spaces of two spoons positioned at reinforcement both sides
On the contrary, each spoonful of oily space is connected with installing space each via the oil through on cover plate.
6. the differential mechanism according to claim 1 or 4 it is characterised in that described baffle plate be two pieces and with regard to cover plate central about
Symmetrical assembling setting.
7. differential mechanism according to claim 1 is not it is characterised in that described bevel gear is communicated with bevel gear two ends
Oil through, is flat position at described differential axle and bevel gear inner hole, and flat bit width and diameter ratio is for 0.85～0.95.
8. differential mechanism according to claim 1 is it is characterised in that the rotating shaft of described axle shaft gear is coordinated with differential casing
Unilateral gap be 0.5～1.5mm.
9. differential mechanism according to claim 1 is it is characterised in that be provided with several on the sphere inside differential carrier
Shoe cream room.
10. differential mechanism according to claim 1 is not it is characterised in that have on the differential housing in connection differential carrier body
Outer oil through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477597.9A CN104405850B (en) | 2014-09-18 | 2014-09-18 | Differential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477597.9A CN104405850B (en) | 2014-09-18 | 2014-09-18 | Differential |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104405850A CN104405850A (en) | 2015-03-11 |
| CN104405850B true CN104405850B (en) | 2017-01-25 |
Family
ID=52643501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410477597.9A Active CN104405850B (en) | 2014-09-18 | 2014-09-18 | Differential |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405850B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577855B (en) * | 2015-06-18 | 2023-05-05 | 武藏精密工业株式会社 | Differential device |
| CN105245056A (en) * | 2015-10-21 | 2016-01-13 | 无锡惠山泵业有限公司 | Novel automobile generator differential driving wheel |
| CN108730476A (en) * | 2018-05-10 | 2018-11-02 | 福建省晋江市东石肖下连盛机械配件厂（普通合伙） | The differential assembly of all-wheel drive vehicle |
| JP7014074B2 (en) * | 2018-07-18 | 2022-02-01 | トヨタ自動車株式会社 | Vehicle differential |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9312856D0 (en) * | 1993-06-22 | 1993-08-04 | Automotive Products Plc | A differential mechanism |
| JP2003254415A (en) * | 2002-02-28 | 2003-09-10 | Komatsu Ltd | Clutch type limited slip differential |
| DE602004026237D1 (en) * | 2003-03-19 | 2010-05-12 | Nissan Motor | Differential and housing for differential |
| JP3969345B2 (en) * | 2003-05-30 | 2007-09-05 | トヨタ自動車株式会社 | Rotating shaft support device and differential device |
| JP4968363B2 (en) * | 2010-04-21 | 2012-07-04 | トヨタ自動車株式会社 | Lubrication structure of differential gear |
| CN103267216B (en) * | 2013-06-02 | 2015-04-29 | 吉林大学 | Differential device type power coupler lubricating system |
-
2014
- 2014-09-18 CN CN201410477597.9A patent/CN104405850B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104405850A (en) | 2015-03-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200911 Address after: 545007 the Guangxi Zhuang Autonomous Region Liuzhou City Liu Tai Road No. 1 Co-patentee after: Liugong Liuzhou Foundry Co.,Ltd. Patentee after: GUANGXI LIUGONG MACHINERY Co.,Ltd. Address before: 545007 the Guangxi Zhuang Autonomous Region Liuzhou City Liu Tai Road No. 1 Patentee before: GUANGXI LIUGONG MACHINERY Co.,Ltd. |