CN103939571A - Differential lock joint sleeve of forcibly locking type differential - Google Patents
Differential lock joint sleeve of forcibly locking type differential Download PDFInfo
- Publication number
- CN103939571A CN103939571A CN201410133018.9A CN201410133018A CN103939571A CN 103939571 A CN103939571 A CN 103939571A CN 201410133018 A CN201410133018 A CN 201410133018A CN 103939571 A CN103939571 A CN 103939571A
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- CN
- China
- Prior art keywords
- arc
- differential
- joint sleeve
- line
- differential lock
- 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.)
- Pending
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Classifications
-
- 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
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/24—Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
-
- 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
- F16H2048/385—Constructional details of the ring or crown gear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention relates to a differential lock joint sleeve of a forcibly locking type differential. The differential lock joint sleeve comprises a joint sleeve body and end face teeth. The projection of each end face tooth in the axial direction of the joint sleeve body is a standard sector. The standard sector is composed of an outer arc, an inner arc and two straight sides, wherein the outer arc and the inner arc are concentric, the two straight sides are connected with the end points of the outer arc and the end points of the inner arc, and the central angle of the outer arc is larger than that of the inner arc; connecting lines between the two ends of the inner arc and the circle center and the inner arc define a sector, and extension lines of the two straight sides intersect in the sector. Through the differential lock joint sleeve of the forcibly locking type differential, the bending strength of tooth roots can be effectively improved, the damage rate of a differential lock is reduced, and the initial connection resistance of the joint sleeve is decreased, so that the differential lock joint sleeve can be jointed more easily.
Description
Technical field
The present invention relates to a kind of differential lock clutch collar of locking differential.
Technical background
The differential lock of locking differential configuration is simple in structure, is mainly made up of clutch collar and Effector.Wherein, clutch collar comprises slip joint cover and lock seaming cover, and the two coaxial line, is end joined.When automobile is during in bad road surfaces such as muddy or ice and snow, can make slip joint cover and the end-tooth of lock seaming cover be bonded with each other, with locked differential mechanism, strengthen the passing capacity of automobile.The end-tooth of clutch collar is usually designed to fan tooth structure, and this structure being projected as on clutch collar axial direction is fan-shaped.After the base dimension of fan tooth structure is determined, the main method that improves teeth bending strength is to increase Fillet radius.It is obvious that the method improves the effect of teeth bending strength, but increase to after certain size when Fillet radius, and it should not increase again, otherwise will cause flank of tooth area of contact to reduce, and makes the joint of clutch collar unstable, even occurs slippage fault; Also can cause that flank of tooth contact increases simultaneously, make to occur spot corrosion on surface of contact, shorten the clutch collar life-span.Therefore, be subject to certain limitation by the method that increases Fillet radius raising teeth bending strength simply.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of differential lock clutch collar of locking differential, and this clutch collar teeth bending strength is high, the life-span is long, end-tooth reasonable stress, joint stable.
In order to solve the problems of the technologies described above, the differential lock clutch collar of locking differential of the present invention comprises clutch collar body, end-tooth; The projection of described end-tooth on clutch collar axial direction is as the criterion fan-shaped, the fan-shaped external arc by concentric of this standard and interior circular arc and be connected external arc and two straight lines of inner circle end of arc form, and the central angle of external arc is greater than the central angle of interior circular arc; The line in interior circular arc two ends and the center of circle and this interior circular arc surround one fan-shaped, the elongation line of two straight lines meet at this fan-shaped in.
Differential lock clutch collar structure of the present invention can be used for slip joint cover or lock seaming cover, or simultaneously for slip joint cover and lock seaming cover.Because clutch collar end-tooth tooth root external arc side thickness is large, intensity is high, when slip joint cover or lock seaming cover in conjunction with time, the external arc side of tooth is prior to interior circular arc side engagement, and bear larger load, the interior circular arc side of tooth root is carried less load, end-tooth is stressed more reasonable, and has improved teeth bending strength; The initial engagement of two clutch collars is changed into the line contact type of accurate fan tooth by the face contact type of fan tooth simultaneously, and this further reduces initial engagement resistance, is beneficial to the initial engagement of two clutch collars.Due to the joint stable of two clutch collars, thereby be not prone to slippage fault, the working life of yet having improved clutch collar simultaneously.The present invention can effectively improve the flexural strength of tooth root, reduces the damage percentage of differential lock, has also reduced the initial engagement resistance of clutch collar simultaneously, and the joint of differential lock clutch collar is more prone to.
The elongation line of fan-shaped two straight lines of described standard meets on the angular bisector of interior circular arc central angle.
Described external arc AB left end point A is θ to line Ao and the external arc AB left end point A of center of circle o to the angle between the line AC of interior circular arc CD left end point C, 0< θ≤0.15 °.
Described external arc AB left end point A is preferably θ=0.10 ° to the line Ao of center of circle o and external arc AB left end point A to the angle theta between the line AC of interior circular arc CD left end point C.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 a is the differential lock clutch collar front view of locking differential of the present invention.
Fig. 1 b is that the A-A of Fig. 1 a is to sectional view
Fig. 2 is the perspective view of end-tooth at clutch collar axial direction.
Embodiment
As shown in Figure 1, the differential lock clutch collar of locking differential of the present invention comprises clutch collar body 1, end-tooth 2; The projection of described end-tooth 2 on the clutch collar axial direction fan-shaped ABDC that is as the criterion, as shown in Figure 2, the fan-shaped ABDC of this standard is by the external arc AB of concentric o and interior circular arc CD and be connected external arc AB and the straight line AC of interior circular arc CD end points, straight line BD form, center of circle o is positioned on the shaft axis of clutch collar, and the central angle ∠ AoB of external arc AB is greater than the central angle ∠ CoD of interior circular arc CD; Line Co, the Do of interior circular arc CD and two end points C, D and center of circle o surrounds a fan-shaped CoD, and the intersection point o ' of the elongation line of straight line AC, straight line BD is positioned at this fan-shaped CoD.
Accurate fan-shaped ABDC can be symmetrical structure or left-right asymmetry structure.
In the time that the fan-shaped ABDC of standard is symmetrical structure, intersection point o ' is positioned on the angular bisector of central angle ∠ CoD.Now external arc AB left end point A is θ to the line Ao of center of circle o and external arc AB left end point A to the angle between the line AC of interior circular arc CD left end point C; External arc AB right endpoint B is also θ to the line Bo of center of circle o and external arc AB right endpoint B to the angle between the line BD of interior circular arc CD right endpoint D.Distance L between intersection point o ' and center of circle o is determined by following operation:
The Radius A o of fan-shaped AoB and Bo are rotated to an angle θ around 2 internal direction to end-tooth of A, B respectively simultaneously, with circular arc C ' D ' intersects at C, D 2 points, now distance L=the R1 between o and o ' × sin(θ)/sin(θ+β/2), wherein R1 is the radius of external arc AB, β is the central angle of external arc AB, and θ span is 0< θ≤0.15 °.
Any one during the lock seaming cover of differential lock and slip joint are overlapped or the end-tooth 2 of two are designed to accurate sector structure as stated above, under identical Fillet radius condition, θ is got to 3 representative values and carry out teeth bending strength calculating, the results are shown in Table 1.
Table 1 teeth bending strength calculates
Note: θ=0 ° represents that end-tooth is fan tooth structure.In table, clutch collar stress is larger, represents that teeth bending strength is less.
From data in table 1, in the time of θ=0.10 °, the teeth bending strength maximum of accurate fan-shaped end-tooth.Compared with fan-shaped end-tooth, teeth bending strength increase rate can reach more than 10%.
Claims (4)
1. a differential lock clutch collar for locking differential, comprises clutch collar body (1), end-tooth (2); It is characterized in that the projection of described end-tooth (2) on the clutch collar axial direction fan-shaped ABDC that is as the criterion, the fan-shaped ABDC of this standard is by the external arc AB of concentric o and interior circular arc CD and be connected external arc AB and two straight line AC, BD of interior circular arc CD end points form, and the central angle ∠ AoB of external arc AB is greater than the central angle ∠ CoD of interior circular arc CD; The line of interior circular arc CD two ends and center of circle o and this interior circular arc CD surround a fan-shaped CoD, and the elongation line of two straight line AC, BD meets in this fan-shaped CoD.
2. the differential lock clutch collar of locking differential according to claim 1, is characterized in that the elongation line of the fan-shaped ABDC of described standard two straight line AC, BD meets on the angular bisector of interior circular arc central angle ∠ CoD.
3. the differential lock clutch collar of locking differential according to claim 2, it is characterized in that described external arc AB left end point A is θ to line Ao and the external arc AB left end point A of center of circle o to the angle between the line AC of interior circular arc CD left end point C, 0< θ≤0.15 °.
4. the differential lock clutch collar of locking differential according to claim 3, is characterized in that described external arc AB left end point A is θ=0.10 ° to the line Ao of center of circle o and external arc AB left end point A to the angle between the line AC of interior circular arc CD left end point C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133018.9A CN103939571A (en) | 2014-04-02 | 2014-04-02 | Differential lock joint sleeve of forcibly locking type differential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410133018.9A CN103939571A (en) | 2014-04-02 | 2014-04-02 | Differential lock joint sleeve of forcibly locking type differential |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103939571A true CN103939571A (en) | 2014-07-23 |
Family
ID=51187384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410133018.9A Pending CN103939571A (en) | 2014-04-02 | 2014-04-02 | Differential lock joint sleeve of forcibly locking type differential |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939571A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4053248A (en) * | 1975-12-04 | 1977-10-11 | Gelenkwellenbau Gmbh | Coupling flange for a torque transmitting shaft |
| US4702126A (en) * | 1981-09-30 | 1987-10-27 | Takeichi Nakamura | Axial gear train having syncline face cycloid gearing |
| CN201090708Y (en) * | 2007-09-15 | 2008-07-23 | 魏强 | Drive axle with differential lock |
| DE102008030496A1 (en) * | 2008-06-26 | 2009-12-31 | Schaeffler Kg | Wheel bearing assembly, has spur toothing systems gripped into one another such that rotating partners are coupled with each other in torque proof manner with respect to common rotating axis during normal mode |
| CN103228940A (en) * | 2010-03-31 | 2013-07-31 | 因维尼恩有限公司 | Coupling |
| CN203431124U (en) * | 2013-08-29 | 2014-02-12 | 陕西汉德车桥有限公司 | Novel differential lock structure |
-
2014
- 2014-04-02 CN CN201410133018.9A patent/CN103939571A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4053248A (en) * | 1975-12-04 | 1977-10-11 | Gelenkwellenbau Gmbh | Coupling flange for a torque transmitting shaft |
| US4702126A (en) * | 1981-09-30 | 1987-10-27 | Takeichi Nakamura | Axial gear train having syncline face cycloid gearing |
| CN201090708Y (en) * | 2007-09-15 | 2008-07-23 | 魏强 | Drive axle with differential lock |
| DE102008030496A1 (en) * | 2008-06-26 | 2009-12-31 | Schaeffler Kg | Wheel bearing assembly, has spur toothing systems gripped into one another such that rotating partners are coupled with each other in torque proof manner with respect to common rotating axis during normal mode |
| CN103228940A (en) * | 2010-03-31 | 2013-07-31 | 因维尼恩有限公司 | Coupling |
| CN203431124U (en) * | 2013-08-29 | 2014-02-12 | 陕西汉德车桥有限公司 | Novel differential lock structure |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140723 |