CN201159274Y - Tooth embedding type differential gear between shafts - Google Patents
Tooth embedding type differential gear between shafts Download PDFInfo
- Publication number
- CN201159274Y CN201159274Y CNU2007203114404U CN200720311440U CN201159274Y CN 201159274 Y CN201159274 Y CN 201159274Y CN U2007203114404 U CNU2007203114404 U CN U2007203114404U CN 200720311440 U CN200720311440 U CN 200720311440U CN 201159274 Y CN201159274 Y CN 201159274Y
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- ring
- driven torus
- tooth
- initiatively
- noise
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Abstract
The utility model relates to a differential, in particular to a jaw inter-axle differential, comprising an active ring (3) fixed between the front and back shells (1, 4) of the differential, a central ring (12) provided in the middle hole of the active ring (3) and fixed axially, which can rotate relatively to the active ring (3), a front inactive ring (2) and a back inactive ring (5) which are provided at two sides of the active ring (3) and the central ring (12), wherein the active ring (3) and the central ring (12) are both meshed with the front inactive ring (2) and the back inactive ring (5), the front and back inactive rings (2, 5) are provided with springs (6) beside to approach the front and back inactive rings (2, 5) to the active ring (3) and the central ring (12). The utility model realizes reasonable torque distribution of the differential without manual operation and stopping, having simple structure and reliable operation.
Description
Technical field
The utility model relates to differential mechanism, especially castellated interaxial differential.
Background technique
The interaxial differential that is used for the heavy off-road vehicle tandem axles now number extremely greatly is the anti-skidding interaxial differential of forced locking formula.As shown in Figure 1, the torque of symmetry cone planetary gear differential mechanism (band forced locking formula is anti-skidding) is passed to differential spider by differential carrier, planetary pinion, front and back differential gear, hollow shaft, perforation semiaxis rotate together, and torque is distributed to perforation semiaxis and hollow shaft by the size that connects bridge, the suffered resistance of back driving axle.When if wherein the wheel of a ransaxle changes soon, driving the perforation axle of fast commentaries on classics bridge or the differential gear that hollow shaft drives this side differential mechanism changes soon, thereby drives the planetary pinion rotation, realizes differential action.Unsettled or enter road surfaces such as mire and when trackslipping when a ransaxle wherein, only the trackslip moment of torsion of bridge of moment of torsion.In order to bring into play moment of torsion, must stop, handle the differential lock operating mechanism, by stylus pin differential gear and differential carrier are locked into one.Connecting semiaxis and hollow shaft so together rotates.Torque partly is fitted on the bridge that does not trackslip like this.After rolling bad road away from, handle the differential lock release mechanism, the differential lock release realizes differential again.
Necessary parking, pilot control lockable mechanism locking differential before automobile sails poor road surface into from better road surface, and must stop behind the road surface preferably when automobile sails into, the pilot control lockable mechanism is opened differential mechanism, if the lockable mechanism of differential mechanism does not in time unclamp, the same problem when producing with the indifferential device is as the too much power of tire accelerated wear test, consumption with Parts for Power Train may be transshipped etc.
The model utility content
The purpose of this utility model need not driver's hand control when providing a kind of use, dispense with parking, the castellated interaxial differential that simple in structure, reliable operation, locking coefficient are not influenced by parts depreciation.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of castellated interaxial differential, comprise the forward and backward shell of differential mechanism, its specialization is, also comprise the active ring that is fixed between the forward and backward shell of differential mechanism, be installed in initiatively to encircle and relatively initiatively encircle rotation in the intermediate hole but the center ring of axial restraint, and the preceding driven torus and the back driven torus that are installed in active ring and center ring both sides, wherein initiatively ring and center ring respectively with preceding driven torus and back driven torus engagement, thereby preceding driven torus and back driven torus other be separately installed with spring make before driven torus and back driven torus trend towards near initiatively encircling and center ring; Preceding driven torus is connected with perforation shaft drive by preceding splined hub, and back driven torus is connected with quill drive by the back splined hub.
Thereby wherein initiatively connect the realization axial restraint by snap ring between ring and the center ring.
Wherein initiatively ring is a tooth union thimble that has cross axle, is evenly distributed with down the radially power transmission tooth of trapezoidal cross-section in its two sides along circumference, the preceding driven torus that is meshed with it and afterwards also be distributed with corresponding power transmission tooth on the outer rim of driven torus.
Further, wherein on the driven torus of on the preceding driven torus and back, the ring of eliminating the noise all is installed with the center ring engagement place, all have on these two rings of eliminating the noise can with the tooth of center ring engagement, on these two rings of eliminating the noise an opening is arranged all, initiatively encircling both sides respectively has a lengthening tooth to extend out in two openings that encircle of eliminating the noise.
The lengthening tooth that wherein initiatively encircles both sides is with respect to initiatively ring symmetrical distribution.
The outside of original tooth on driven torus and the back driven torus before wherein two rings of eliminating the noise are installed in respectively, thereby before two rings of eliminating the noise are sleeved on by the annular projection on it is rotatable respectively on the driven torus and the groove axial restraint on the driven torus of back, these two eliminate the noise ring and preceding driven torus and after be drive fit between the driven torus.
Wherein the tooth on two rings of eliminating the noise is and its other identical stepped tooth of tooth type in mounting point separately, and the tooth on the respective center ring also is a stepped tooth.
Wherein having one in the center ring outer rim can be by initiatively encircling the groove of lengthening tooth.
Wherein the opening of noise elimination ring is between two adjacent tooth tops.
Clearly, the utility model has been realized need not under hand control, the dispense with parking situation differential mechanism to the reasonable distribution of torque, and overall structure is simple, reliable operation, and locking coefficient is not influenced by parts depreciation.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model background technique;
Accompanying drawing 2 is a structural representation of the present utility model;
Accompanying drawing 3 is to eliminate the noise in the utility model to encircle the structural representation of (10);
Eliminate the noise when accompanying drawing 4 is the utility model indifferential and encircle (10) and the position view that initiatively encircles (3) lengthening tooth (7), center ring (12);
Eliminate the noise when accompanying drawing 5 is the utility model differential and encircle (10) and the position view that initiatively encircles (3) lengthening tooth (7), center ring (12).
Embodiment
Come the utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 2, initiatively encircle 3 and be fixed between the forward and backward shell 1,4 of differential mechanism, rotate with differential casing.Initiatively encircling 3 is tooth union thimbles that have cross axle, and many radially power transmission teeth of trapezoidal cross-section are circumferentially arranged in its two sides, and the power transmission tooth of both sides is corresponding one by one.The inner side surface of the outer rim of the forward and backward driven torus 2,5 that is meshed with it also has similar power transmission tooth.Make down in the process that trapezoidal purpose is transmitting torque, prevent from initiatively to encircle 3 and throw off automatically with driven torus.Master and slave rotating ring is in bonding state under the effect of spring 6 power.
Initiatively encircling arbitrary corresponding position of 3 both sides, a lengthening tooth 7 is respectively being arranged.Initiatively encircle in 3 the intermediate hole center ring 12 is housed, having one in center ring 12 outer rims can be by initiatively encircling the groove of 3 lengthening teeth 7, initiatively encircles 3 and adopts with center ring 12 and to be slidingly matched, center ring 12 is relative initiatively encircle 3 free to rotate.By snap ring 11 axially locating, make both that axial relatively moving can not be arranged between them.Can earlier snap ring 11 be set to the fluting place of center ring 12 during assembling and snap ring 11 is clamp-oned in the groove fully, center ring 12 be packed into initiatively encircle in 3 the intermediate hole again, initiatively encircle 3 fluting places and just can open automatically when snap ring 11 is pushed to.The dismounting threaded of available dedicated is screwed in by center ring 12 removal holes during dismounting, snap ring 11 is clamp-oned fully in the groove of center ring 12, can release center ring 12.
In the inboard of driven torus, on the surface, cylndrical surface of its stepped tooth outer rim, a noise elimination ring 10 with elasticity and opening is housed, the ring 10 of eliminating the noise can rotate around cylinder, and axial motion is subjected to the shaft shoulder (groove) of cylinder spacing.The ring 10 of eliminating the noise is a drive fit with installation cylndrical surface on the driven torus, and the ring 10 of eliminating the noise is the same with the profile geometry of the stepped tooth of driven torus inner ring inner side surface, and transverse tooth thickness is thinner than the stepped tooth transverse tooth thickness on the driven torus, so as with combination again after driven torus separates.Tooth depth is little, in order to avoid when fast commentaries on classics one side noise elimination ring 10 did not withdraw from the teeth groove of center ring 12 as yet fully, the stepped tooth of driven torus withdrawed from this teeth groove earlier and is rotated further, and makes the ring 10 of eliminating the noise lose noise elimination function.
The opening of ring 10 of eliminating the noise should be opened between two adjacent tooth tops, initiatively encircles 3 corner relatively in order to limit the ring 10 of eliminating the noise, and initiatively encircles 3 lengthening tooth 7 and reaches noise elimination and encircle in 10 the opening.A/F should guarantee to eliminate the noise and encircle 10 open ends and initiatively encircle 3 lengthening teeth 7 when colliding, and each tooth on the ring 10 of eliminating the noise can align with each tooth on the center ring 12.Before driven torus 2, the two kind teeth of back on the driven torus 5, should align one by one along radial direction, its number of teeth with eliminate the noise encircle 10, initiatively encircle 3, the number of teeth of center ring 12 equates that they all evenly distribute along circumference.
Initiatively encircle 3 when combining, should guarantee on the structure that center ring 12 combines with the stepped tooth of driven torus simultaneously with driven torus power transmission tooth.Driven torus and splined hub are Spielpassung, and slide relative has good leading role again easily.
Preceding splined hub 15 links to each other with perforation axle 17 external spliness by internal spline, and back splined hub 8 links to each other with hollow shaft 9 external spliness by internal spline, connects axle 17 from spacer 14, hollow shaft 9 middle passing.Connecting between axle 17 and spacer 14 and the hollow shaft 9 has certain clearance, does not contact mutually, when relative movement is arranged, can not influence each other.The other end of perforation axle 17 and hollow shaft 9 is packed in the bearing.
When the automobile that this differential mechanism is housed travels with different operating modes on the road surface:
Stressed when equal when two bridges, torque is passed to differential mechanism by differential carrier and is initiatively encircled 3, by the moving forward and backward driven torus 2,5 of the power transmission cingulum of its both sides, splined hub and connect axle 17, hollow shaft 9 rotates together, the torque mean allocation is given perforation bridge, back driving axle.
Suppose that two bridges are stressed unequal, when wherein a ransaxle changes soon, driving fast perforation axle 17 or this side differential mechanisms noise elimination ring 10 of hollow shaft 9 drives that changes bridge changes soon with driven torus, so in a fast side of changeing, under the effect of the axial thrust load of center ring 12 and this side driven torus inner ring stepped tooth inclined-plane contact force, driven torus, the stepped tooth of noise elimination ring 10 produces slip along the respective teeth of center ring 12 together, center ring 12 is subjected to snap ring 11 restrictions, can not axial motion, therefore this side noise elimination ring 10 and driven torus are outer vertically moves, driven torus is endwisely slipped along splined hub, compress this side spring 6, to tooth top toward each other, the lengthening tooth 7 that ring 10 openings one end of eliminating the noise is initiatively encircled on 3 withstands, and driven torus is just withstood by the ring 10 of eliminating the noise and remains on from initiatively encircling 3 farthest positions, so change the power transmission tooth of a side driven torus soon and initiatively encircle the disengaging of 3 power transmission teeth, interrupted this fast transmission of changeing the bridge torque is realized differential; When the driven torus rotating speed is low when equaling initiatively to encircle 3 rotating speed, encircle 10 by driven torus with the frictional force drive noise elimination between the ring 10 of eliminating the noise and oppositely return, driven torus under the effect of spring 6 thrusts again with initiatively encircle 3 and combine.And wherein a ransaxle is unsettled or enter road surfaces such as mire and trackslip, initiatively encircle 3 torque can be all or major part distribute to another ransaxle.Turn round and automatic differential action thereby realize dividing automatically.
The effect of ring 10 of wherein eliminating the noise is: driven torus with initiatively encircle in 3 the separation process, along with the slip of driven torus stepped tooth along center ring 12 respective teeth, axially reciprocating can take place in driven torus, can cause sound thus and increase the weight of the wearing and tearing of part.The noise elimination ring 10 that is contained on the driven torus will work, and the opening of the ring 10 of eliminating the noise is facing to the lengthening tooth 7 that initiatively encircles on 3.When the rotating speed of driven torus is higher than (seeing accompanying drawing 5) when initiatively encircling 3, under the effect of the axial thrust load of center ring 12 and this driven torus inner ring stepped tooth inclined-plane contact force, the stepped tooth of ring 10 on driven torus of eliminating the noise slides on the respective teeth on the center ring 12, center ring 12 is subjected to snap ring 11 restrictions, can not axial motion, therefore this side noise elimination ring 10 and driven torus move to right vertically, driven torus is endwisely slipped along splined hub, compress this side spring 6, to the ring 10 of eliminating the noise, center ring 12 tooth tops toward each other, and the lengthening tooth 7 that ring 10 openings one end of eliminating the noise is initiatively encircled on 3 blocks, driven torus is just withstood by the ring 10 of eliminating the noise and is held in from initiatively encircling 3 farthest positions, and axially reciprocating no longer takes place.When the driven torus rotating speed eases down to (seeing accompanying drawing 4) when equaling initiatively to encircle 3 rotating speed, drive the ring 10 of eliminating the noise by driven torus with the frictional force between the ring 10 of eliminating the noise and oppositely return, driven torus under the effect of spring 6 thrusts again from new with initiatively encircle 3 and combine.
The utility model be differential gear before and after in the prior art, 4 planet wheels, planet pin (cross axle structure), stylus pin formulas are forced usefulness such as differential mechanism initiatively encircles 3, the preceding driven torus 2 of center ring 12 and center ring 12 both sides and back driven torus 5, replacements such as noise elimination ring 10, spring 6, can realize the repertoire of former differential mechanism, and can realize dividing automatically between the ransaxle according to road conditions and turn round and differential.
Claims (9)
1, a kind of castellated interaxial differential, before comprising differential mechanism, back cover (1,4), it is characterized in that: also comprise be fixed on differential mechanism before, back cover (1,4) the active ring (3) between, be installed in initiatively and can relatively initiatively encircle (3) rotation but the center ring (12) of axial restraint in ring (3) intermediate hole, and the preceding driven torus (2) and the back driven torus (5) that are installed in active ring (3) and center ring (12) both sides, wherein initiatively ring (3) and center ring (12) respectively with preceding driven torus (2) and back driven torus (5) engagement, preceding driven torus (2) and back driven torus (5) be other be separately installed with spring (6) thus make preceding driven torus (2) and after driven torus (5) trend towards approaching active and encircle (3) and center ring (12);
Preceding driven torus (2) is in transmission connection with connecting axle (17) by preceding splined hub (15), and back driven torus (5) is in transmission connection by back splined hub (8) and hollow shaft (9).
2, castellated interaxial differential as claimed in claim 1 is characterized in that: wherein initiatively pass through snap ring (11) between ring (3) and the center ring (12) thereby connect to realize axial restraint.
3, castellated interaxial differential as claimed in claim 1, it is characterized in that: wherein initiatively ring (3) is a tooth union thimble that has cross axle, two sides at it are evenly distributed with down the radially power transmission tooth of trapezoidal cross-section along circumference, also are distributed with corresponding power transmission tooth on the outer rim of preceding driven torus (2) that is meshed with it and back driven torus (5).
4, as any described castellated interaxial differential in the claim 1 to 3, it is characterized in that: wherein go up and back driven torus (5) is gone up all to be equipped with to eliminate the noise with center ring (12) engagement place and encircled (10) at preceding driven torus (2), all have on these two rings (10) of eliminating the noise can with the tooth of center ring (12) engagement, on these two rings (10) of eliminating the noise an opening is arranged all, initiatively ring (3) both sides respectively have a lengthening tooth (7) to extend out in the opening of two rings (10) of eliminating the noise.
5, castellated interaxial differential as claimed in claim 4 is characterized in that: wherein initiatively the lengthening tooth (7) of ring (3) both sides is symmetrically distributed with respect to initiatively encircling (3).
6, castellated interaxial differential as claimed in claim 4, it is characterized in that: wherein two noise elimination rings (10) are installed in the outside of preceding driven torus (2) and the last original tooth of back driven torus (5) respectively, two eliminate the noise ring (10) respectively by the annular projection on it rotatable be sleeved on that preceding driven torus (2) is gone up and back driven torus (5) thus on the groove axial restraint, these two eliminate the noise ring (10) and preceding driven torus (2) and after be drive fit between the driven torus (5).
7, castellated interaxial differential as claimed in claim 4 is characterized in that: wherein the tooth on two rings (10) of eliminating the noise is and its other identical stepped tooth of tooth type in mounting point separately, and the tooth on the respective center ring (12) also is a stepped tooth.
8, castellated interaxial differential as claimed in claim 4 is characterized in that: wherein having one in center ring (12) outer rim can be by initiatively encircling the groove of (3) lengthening teeth (7).
9, castellated interaxial differential as claimed in claim 4 is characterized in that: the opening of the ring (10) of wherein eliminating the noise is between two adjacent tooth tops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203114404U CN201159274Y (en) | 2007-12-26 | 2007-12-26 | Tooth embedding type differential gear between shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203114404U CN201159274Y (en) | 2007-12-26 | 2007-12-26 | Tooth embedding type differential gear between shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159274Y true CN201159274Y (en) | 2008-12-03 |
Family
ID=40109858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203114404U Expired - Lifetime CN201159274Y (en) | 2007-12-26 | 2007-12-26 | Tooth embedding type differential gear between shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159274Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438922A (en) * | 2015-08-07 | 2017-02-22 | 丰田自动车株式会社 | Vehicle differential |
| CN107225967A (en) * | 2017-07-19 | 2017-10-03 | 浙江春风动力股份有限公司 | A kind of differential bridge |
| CN107989981A (en) * | 2017-12-05 | 2018-05-04 | 杭叉集团股份有限公司 | Differential lock operating device and vehicle |
-
2007
- 2007-12-26 CN CNU2007203114404U patent/CN201159274Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438922A (en) * | 2015-08-07 | 2017-02-22 | 丰田自动车株式会社 | Vehicle differential |
| CN106438922B (en) * | 2015-08-07 | 2018-11-09 | 丰田自动车株式会社 | differential device for vehicle |
| CN107225967A (en) * | 2017-07-19 | 2017-10-03 | 浙江春风动力股份有限公司 | A kind of differential bridge |
| CN107225967B (en) * | 2017-07-19 | 2024-04-12 | 浙江春风动力股份有限公司 | Differential axle |
| CN107989981A (en) * | 2017-12-05 | 2018-05-04 | 杭叉集团股份有限公司 | Differential lock operating device and vehicle |
| CN107989981B (en) * | 2017-12-05 | 2023-07-18 | 杭叉集团股份有限公司 | Differential lock operating device and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081203 |
|
| CX01 | Expiry of patent term |