CN201129441Y - Regulating mechanism of vehicle main reducing gear assembly - Google Patents
Regulating mechanism of vehicle main reducing gear assembly Download PDFInfo
- Publication number
- CN201129441Y CN201129441Y CNU2007201874554U CN200720187455U CN201129441Y CN 201129441 Y CN201129441 Y CN 201129441Y CN U2007201874554 U CNU2007201874554 U CN U2007201874554U CN 200720187455 U CN200720187455 U CN 200720187455U CN 201129441 Y CN201129441 Y CN 201129441Y
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- bearing
- diff
- adjuster
- final drive
- main reducer
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Abstract
The utility model discloses an adjusting mechanism of a main reducer assembly, which comprises a main reducer casing, a bearing cover and a differential bearing adjusting nut, the inner screw thread which is engaged with the differential bearing adjusting nut is all processed on the main reducer casing, and the screw thread on the main reducer casing is integrated thread. In optimized selection, a threaded hole is arranged on the main reducer casing, and a locking screw can be screwed in by the threaded hole to lock the differential bearing adjusting nut. The adjusting mechanism of an automobile main reducer assembly of the utility model is high in adjusting precision, strong in supporting rigid, fine in manufacturability, low in manufacturing cost and wide in application range.
Description
Technical field
The utility model relates to automobile main reducer, particularly the regulating mechanism of automobile main reducer assembly.
Background technique
Automobile can move, and is to produce power by motor, realizes through driving component work such as clutch, transmission shaft, main reducing gear, differential mechanism, semiaxis, wheels.Main reducing gear is that important its function of assembly parts is: reduction of speed increases to be turned round, and changes the transmission of power direction.Its specific implementation is: drive the many driven gears of the number of teeth by the few driving gear of the number of teeth and realize slowing down, adopt Bevel Gear Drive to change the sense of rotation of moment of rotation.Be the impact noise of minimizing main reducing gear internal gear, and make gear evenly, need to guarantee that the tram between the driving and driven gear concerns, for this reason, the regulating mechanism of gear backlash is set in main reducing gear in the length direction wearing and tearing.
The structure and the adjusting method division of the gear backlash regulating mechanism of typical case's main reducing gear are as follows:
As shown in Figure 1, typical main reducing gear is held 5, bolt 15, the driven gear 16 of driving gear 9, final drive casing 10, differential bearing 11, differential assembly 12, adjuster, diff. bearing 13, lock banking stop 14, belt washer, is partly formed from tooth fixing bolt 17, bearing cap 18, bolt of bearing cap 19 etc. by main tooth locking nut 1, main pinion.
In the above-mentioned parts: final drive casing 10, bearing cap 18, bolt of bearing cap 19 are formed the main reducing gear housing assy, it is the important component part in the main reducing gear, play the frame effect, can support driving gear 9, differential assembly 12, and parts such as driven gear 16 simultaneously; Be provided with one group of main pinion and hold 5, driving gear is play supporting role, can hold 5 to main pinion by pad and carry out pretension; Be provided with one group of differential bearing 11, supporting differential assembly 12 and driven gear 16; Differential bearing 11 carries out pretension by adjuster, diff. bearing 13, and by the bolt 15 of lock banking stop 14 and belt washer it is carried out locking; After adjusting the position of driving gear 9 and driven gear 16, respectively fastening main tooth locking nut 1, from tooth fixing bolt 17, to strengthen the rigidity of driving gear 9 and driven gear 16.
As shown in Figure 1, on differential bearing lid 18 and final drive casing 10, be processed with internal thread.By bolt of bearing cap 19 differential bearing lid 18 is connected on the final drive casing 10, makes both screw-thread fit become complete screw thread.Screw-thread fit on adjuster, diff. bearing 13 and differential bearing lid 18, the final drive casing 10: screw adjuster, diff. bearing 13, differential bearing 11 is carried out pretension, apply radial pressure by differential assembly 12 to driven gear 16, thereby adjust the back lash of driving gear 9 and driven gear 16.
As shown in Figure 2, be connected with lock banking stop 14 on bearing cap 18, adjuster, diff. bearing 13 is provided with anti-rotation hole 20, can not fit fully between this lock banking stop 14 and the anti-rotation hole 20.One end of lock banking stop 14 is connected on the bearing cap 18 by the bolt 15 of belt washer, and is in the anti-rotation hole 20 on its other end insertion adjuster, diff. bearing 13, loosening to prevent adjuster, diff. bearing 13.
The regulating mechanism of this automobile main reducer assembly to the adjustment process of gear backlash is: at first, differential bearing lid 18, final drive casing 10 are connected, must guarantee during installation that both screw threads are to connecting; Secondly, carry out pretension, adjust the back lash of driving gear 9, driven gear 16 by 13 pairs of differential bearings of adjuster, diff. bearing 11; At last, lock banking stop 14 1 ends are inserted in the adjuster, diff. bearing anti-rotation hole 20, carry out fastening with 15 pairs of lock banking stops of bolt 14 of belt washer.
There is significant disadvantages in this kind structure: the screw thread of bearing cap 18, final drive casing 10 is incomplete thread, need reconfigure when assembling, because assembly error can be destroyed the quality of fit of screw thread, thereby reduces the support stiffness to differential bearing 11; The locking of adjuster, diff. bearing 13 is to finish jointly by the bolt 15 of lock banking stop 14 and belt washer, because lock banking stop 14 can not be fitted fully with adjuster, diff. bearing anti-rotation hole 20, there is the hidden danger of rotating, so the locking reliability of adjuster, diff. bearing 13 is poor.Thus, when driving gear 9, driven gear 16 engagement driving moments of torsion, can produce peripheral force, this peripheral force is decomposed into radial force and axial force, under the influence of radial force, can cause bearing cap 18 that loosening trend is arranged.This kind trend causes driving gear 9, driven gear 16 engagement driving not to move by the normal engaged track, thereby produces consequences such as gear noiose, abnormal sound and premature wear.
In addition, adopt this kind structure, also have processed complex, cost problem of higher.
The model utility content
At above defective, the utility model provides the regulating mechanism of a kind of precision height, good reliability, processing automobile main reducer assembly simple, with low cost
In order to solve the problems of the technologies described above, the automobile main reducer regulating mechanism that the utility model provides, comprise final drive casing, bearing cap, adjuster, diff. bearing: all processing is on final drive casing for the internal thread that cooperates with described adjuster, diff. bearing, and the internal thread on the described final drive casing is whole screw thread.
Preferably, on final drive casing, have a tapped hole, pass this tapped hole and can be screwed into lock bolt, the described adjuster, diff. bearing of locking.
The regulating mechanism of the utility model automobile main reducer assembly, the every circle internal thread on the final drive casing is a complete thread, and does not have screw thread on the bearing cap, does not have screw thread combination butt joint problem between the two, promptly can not influence the quality of fit of screw thread.Thus, when with adjuster, diff. bearing driving and driven gear being adjusted, adjuster, diff. bearing and final drive casing screw pair rigidity improve, thereby improve the defective that changes driving and driven gear engagement track because of the gear transmission impact.In addition, the internal thread on the bevel housing can whole be processed, and reduces manufacturing procedure, improves tool life.
In the optimal way of the present utility model, improved the locking mode of adjuster, diff. bearing: pass the tapped hole on the final drive casing, be screwed into lock bolt, its end is pressed on the adjuster, diff. bearing external cylindrical surface, realization is fastening to adjuster, diff. bearing.Adopt this structure, its locking reliability height, mode of operation is simple, also can reduce accessories such as lock banking stop and packing ring, thereby, help to reduce production costs, enhance productivity, guarantee quality of product.
The regulating mechanism of automobile main reducer assembly of the present utility model is adjusted the precision height, supporting rigidity is strong, technology capability good, and cost of production is low, and accommodation is extensive.
Description of drawings
Fig. 1 is the regulating mechanism structure of typical automobile main reducer assembly;
Fig. 2 is that the A of Fig. 1 is to partial enlarged drawing;
Fig. 3 is regulating mechanism one embodiment's of the utility model automobile main reducer assembly a structural drawing;
Fig. 4 is the B place partial enlarged drawing of Fig. 3.
Embodiment
The utility model automobile main reducer regulating mechanism shown in Figure 3 comprises: final drive casing 10, adjuster, diff. bearing 13, bearing cap 18.
The utility model is compared with typical automobile main reducer regulating mechanism shown in Figure 1, and structurally have following difference: the internal thread on the final drive casing 10 is whole screw thread; There is not screw thread on the bearing cap 18.In the utility model, other parts outside the main reducing gear regulating mechanism are identical with typical main reducing gear.
As shown in Figure 3: bearing cap 18 is connected on the final drive casing 10 by bolt of bearing cap 19; And there is not screw thread on the bearing cap 18; Be processed with whole internal thread on the final drive casing 10; The screw-internal thread fit of integral body on adjuster, diff. bearing 13 and the final drive casing 10, precession or back-out adjuster, diff. bearing 13, differential bearing 11 is applied or release pressure, thereby the back lash of driving gear 9, driven gear 16 is adjusted.
Adopt said structure, the threaded integral that will cooperate with adjuster, diff. bearing 13 is processed on final drive casing 10, the screw thread on the cancellation bearing cap 18.By improving worm structure, that is, change the internal thread on the final drive casing 10 into whole screw thread by the split screw thread, guarantee the quality of fit of screw thread, strengthen screw pair rigidity between adjuster, diff. bearing 13 and the final drive casing 10, improve the support stiffness of main gearbox assembly.Because the easier processing of whole screw thread changes the internal thread on the final drive casing 10 into whole screw thread, reduce manufacturing procedure, improve the working life of cutter.
Preferably, the utility model adopts screw that adjuster, diff. bearing 13 is carried out locking.
As shown in Figure 3: have a tapped hole 23 at final drive casing 10, be screwed into lock bolt 22 through tapped hole 23, the end of lock bolt 22 is pressed on the external cylindrical surface of adjuster, diff. bearing 13; Fastening lock bolt 22 can be exerted pressure to adjuster, diff. bearing 13, prevents that it is loosening.
In above-mentioned preferred implementation, adjustment process to driving gear 9, driven gear 16 back lashes is: match with internal thread on the final drive casing 10 by adjuster, diff. bearing 13, precession adjuster, diff. bearing 13, to differential bearing 11 pretensions, thus the back lash of adjustment driving gear 9 and driven gear 16; With lock bolt 22 precession tapped holes 23, its end plane is pressed on the external cylindrical surface of adjuster, diff. bearing 13, fastening lock bolt 22 by realization adjuster, diff. bearing 13 is exerted pressure, reaches anti-loosing effect.
Above-mentioned preferred implementation, improved the locking mode of adjuster, diff. bearing 13: the tapped hole 23 that passes on the final drive casing 10 is screwed into lock bolt 22, exerted pressure to adjuster, diff. bearing 13 external cylindrical surfaces in its end, thereby carry out fastening adjuster, diff. bearing 13.Adopt this structure, lock bolt 22 is bigger with adjuster, diff. bearing 13 surface of contact, and its locking reliability improves, and has simplified mode of operation.In said structure,, need not to process anti-rotation hole 20 on the adjuster, diff. bearing 13 because of having cancelled lock banking stop 14.This not only simplifies process, also reduces accessories such as lock banking stop and packing ring, thereby, help to reduce production costs, enhance productivity, guarantee quality of product, be applicable to batch process.
In the preferred implementation shown in Figure 3, the bolt 15 of cancellation lock banking stop 14 and belt washer thereof is replaced with lock bolt 22 the fastening of adjuster, diff. bearing 13; Vacate the spatial position that former lock banking stop 14 occupies, make that the structure of final drive casing 10 is more compact, it can utilize segment space to increase.Thus, can suitably increase the internal thread and the adjuster, diff. bearing 13 externally threaded number of turns on the final drive casing 10, prolong screw pair length between adjuster, diff. bearing 13 and the final drive casing 10, with the further raising performance of screw pair between the two.
As shown in Figure 4, preferably, adjuster, diff. bearing 13 is the nut of multidiameter shaft form, and this adjuster, diff. bearing deviates from the diameter of the external cylindrical surface diameter of differential bearing one end less than the other end external cylindrical surface; Lock bolt 22 is pressed close to the separating surface of two external cylindrical surfaces, and is pressed on the less external cylindrical surface of described adjuster, diff. bearing diameter, further improves the locking reliability to adjuster, diff. bearing 13.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1, a kind of regulating mechanism of automobile main reducer assembly, comprise final drive casing, bearing cap, adjuster, diff. bearing, it is characterized in that: all processing is on final drive casing for the internal thread that cooperates with described adjuster, diff. bearing, and the internal thread on the described final drive casing is whole screw thread.
2, the regulating mechanism of automobile main reducer assembly according to claim 1 is characterized in that: have a tapped hole on the described final drive casing, pass this tapped hole and can be screwed into lock bolt, the described adjuster, diff. bearing of locking.
3, the regulating mechanism of automobile main reducer assembly according to claim 2 is characterized in that: described adjuster, diff. bearing is provided with the cylndrical surface at an end that deviates from differential mechanism; Described lock bolt compresses the cylndrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201874554U CN201129441Y (en) | 2007-12-25 | 2007-12-25 | Regulating mechanism of vehicle main reducing gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201874554U CN201129441Y (en) | 2007-12-25 | 2007-12-25 | Regulating mechanism of vehicle main reducing gear assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129441Y true CN201129441Y (en) | 2008-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201874554U Expired - Fee Related CN201129441Y (en) | 2007-12-25 | 2007-12-25 | Regulating mechanism of vehicle main reducing gear assembly |
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| CN (1) | CN201129441Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518785A (en) * | 2011-12-30 | 2012-06-27 | 东风德纳车桥有限公司 | Main speed reducer housing for light car axle |
| CN103375569A (en) * | 2012-04-21 | 2013-10-30 | 东风德纳车桥有限公司 | Light speed reducer assembly |
| CN103644291A (en) * | 2013-12-19 | 2014-03-19 | 方盛车桥（柳州）有限公司 | Method for adjusting axial endplay gap of closed main reducer driving gear |
| CN103836158A (en) * | 2014-03-06 | 2014-06-04 | 合肥美桥汽车传动及底盘系统有限公司 | Vehicular main reducer assembly |
| CN104565305A (en) * | 2013-10-25 | 2015-04-29 | 宁波东力机械制造有限公司 | Backlash adjustment method for inlet bearings of rectangular axis speed reducer |
| CN104728400A (en) * | 2015-03-10 | 2015-06-24 | 盐城工学院 | Eccentric structure based adjustable gap bevel gear reducer |
| CN108407609A (en) * | 2018-05-14 | 2018-08-17 | 安徽安凯汽车股份有限公司 | A kind of independent suspension electric drive front steering axle |
-
2007
- 2007-12-25 CN CNU2007201874554U patent/CN201129441Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518785A (en) * | 2011-12-30 | 2012-06-27 | 东风德纳车桥有限公司 | Main speed reducer housing for light car axle |
| CN103375569A (en) * | 2012-04-21 | 2013-10-30 | 东风德纳车桥有限公司 | Light speed reducer assembly |
| CN104565305A (en) * | 2013-10-25 | 2015-04-29 | 宁波东力机械制造有限公司 | Backlash adjustment method for inlet bearings of rectangular axis speed reducer |
| CN104565305B (en) * | 2013-10-25 | 2016-09-28 | 宁波东力传动设备有限公司 | A kind of rectangular axis reductor enters axle bearing play method of adjustment |
| CN103644291A (en) * | 2013-12-19 | 2014-03-19 | 方盛车桥（柳州）有限公司 | Method for adjusting axial endplay gap of closed main reducer driving gear |
| CN103644291B (en) * | 2013-12-19 | 2016-04-13 | 方盛车桥（柳州）有限公司 | Closed master subtracts main pinion to play clearance adjustment method |
| CN103836158A (en) * | 2014-03-06 | 2014-06-04 | 合肥美桥汽车传动及底盘系统有限公司 | Vehicular main reducer assembly |
| CN104728400A (en) * | 2015-03-10 | 2015-06-24 | 盐城工学院 | Eccentric structure based adjustable gap bevel gear reducer |
| CN108407609A (en) * | 2018-05-14 | 2018-08-17 | 安徽安凯汽车股份有限公司 | A kind of independent suspension electric drive front steering axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20131225 |