CN1485177A - Manufacturing process of differential gear - Google Patents
Manufacturing process of differential gear Download PDFInfo
- Publication number
- CN1485177A CN1485177A CNA021313261A CN02131326A CN1485177A CN 1485177 A CN1485177 A CN 1485177A CN A021313261 A CNA021313261 A CN A021313261A CN 02131326 A CN02131326 A CN 02131326A CN 1485177 A CN1485177 A CN 1485177A
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- differential
- gear wheel
- bevel pinion
- germule
- differential bevel
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Abstract
A method of manufacturing a differential gear comprises, adapting external toothings with thick steel tubes, casting the thick steel tube, the cast aluminium part, two axles of two differential bevel wheels integrally by the cast aluminum method to drive the germule of a gearwheel, then installing and fixing the first pair of differential bevel wheels into the axis; flanges of covers of the right and left bevel wheels supporting the second pair of differential bevel wheels, are engaged with concaves on two sides of the gearwheels, to drive the gearwheels, two pairs of differential bevel wheels, covers of the right and left bevel wheels, the right and left axles. By the invention, a differential gear could be accurately fixed in the center line, and two axles after assembling wouldn't produce noise and swing, which improves great the quality of the differential gear.
Description
Technical field
The present invention relates to a kind of manufacture method of differential mechanism.
Background technology
Existing differential mechanism has novel patent application case number No. 89203027, the structural improvement of the electric bicycle differential mechanism that patent announcement is number several No. 429901 (Fig. 1 of this invention accompanying drawing) as shown in Figure 1, i.e.; And No. 89203736, number several No. 433193 differential mechanism improvement structure of patent announcement (graphic the 5th figure of this case) as shown in Figure 2, i.e..
With regard to the driving wheel 1 of case before above-mentioned, this driving wheel discloses and is made into hollow square groove 1a with the powder forming punching press, respectively establish groove 1b, 1c, 1d, the 1e with locking holes 1f, 1g in and arranged on left and right sides, thereafter after again two umbrella shape spider gears 5,6 being respectively charged into the left and right sides of locating shaft 7, put in the recessed groove of driving wheel 1 left and right sides, be locked in the sealed circular hole with spacer 3 and screw 2 and fixed.
With regard to the driving wheel of above-mentioned back case, comprise one in conjunction with support body 61 and be fixed in this outer tooth ring 62 in conjunction with the outboard peripheries of support body 61, and support body 61 tools, one centre bore 613 and both sides respectively establish a race 614,614 ', its differential bevel gear 7,7 ' axis hole are inserted in has wear-resistant material bearing 72, behind the corresponding again race 614,614 that is placed in support body ' interior, with steady pin 616 from support body 61 outside circumferentially 615 break-through of center reeve pin-and-hole in the dead eye 721 of this bearing 72.
Driving wheel by above-mentioned existing differential mechanism constitutes as can be known, its preceding case need be made driving wheel 1 according to the punching press of powder forming, installing umbrella shape spider gear 5,6 is in 7 liang of rear flank of locating shaft, again spacer 3 is locked in the depression structure that driving wheel 1 is fixed in driving wheel 1 with screw 2, its part number of packages is many, and assembling centering is difficult for; Then case then needs separately in conjunction with support body 61, two races 614,614 of its centre bore 613, both sides ', symmetrically arranged pin-and-hole 615,615 ', an outer tooth ring 62 and an axial side tool thereof be all need keep under strict control each the part processing quality and the careful assemblings such as bead 621 of square hole roughly, can reach the differential mechanism of institute's phase, make its manufacturing cost high.Therefore the required part number of packages of above-mentioned two patents is many, and processing, assembling are numerous and diverse, and manufacturing cost height, and the suitable difficulty of the correct centering between each spare part are easy to skew and rock and produce very big noise when causing the differential mechanism running.
Summary of the invention
Main purpose of the present invention is to break through the preparation method of traditional differential mechanism and manufacture method that a kind of novel differential mechanism is provided, can guarantee the differential drive gear shaft centre line accurately, do not have noise during running, to improve the quality bills of materials of differential mechanism.
Another object of the present invention is to provide a kind of simple structure, reduce the part number of packages, reduce the manufacture method of manufacturing cost and easy-on differential mechanism.
The present invention is in order to reach above-mentioned purpose and effect, and its main technical schemes comprises:
(A) the thick steel pipe of getting certain width mills system one external tooth earlier at its external peripheral surface, to form the germule of a driving gear wheel;
(B) in the germule both sides that drive gear wheel turning respectively, to form the midfeather of a T word shape section;
(C) on this midfeather, wear a plurality of holes;
(D) wheel shaft that will have a C type retaining ring groove places in the germule midfeather that drives gear wheel, and makes it the location on the C type retaining ring groove with the solid differential bevel pinion axle of tool cover, will be driven the germule and the differential bevel pinion axle cast solid of gear wheel again by the cast aluminium method;
(E) in germule both sides difference turning one concave surface that drives gear wheel;
(F) driving the hole that wears plural fixed screw on the gear wheel germule concave surface again;
(G) first pair of differential bevel pinion packed into after above-mentioned wheel shaft and camphane go into C type clasp, the helical teeth wheel cap that will have second pair of differential bevel pinion wheel shaft in the left and right sides again is engaged in second pair of differential bevel pinion in the left and right sides the differential bevel pinion of this first couple respectively and the helical teeth wheel cap is fixed on the both sides concave surface that drives gear wheel.
Use beneficial effect of the present invention to be: to reduce the part number of packages and reduce cost, adopt thick steel pipe to mill external tooth, to overlap the solid tool practice C type retaining ring groove of differential bevel pinion axle double as locating slot is located, make the thick steel pipe, cast aluminium portion and the two differential bevel pinion axles that mill external tooth with being one by cast aluminium, make and drive gear wheel 1, the differential bevel pinion axle of again first pair of differential bevel pinion being packed into is gone into its C type retaining ring groove with C type clasp down and is located; Then the flange outer rim by two helical teeth wheel caps about second pair of differential bevel pinion axle of support tightly fits in the shallow circular concave that drives the gear wheel both sides, with will drive gear wheel germule, the two pairs of differential bevel pinions, about two helical teeth wheel caps and left and right sides wheel shaft very easily be assembled in very exactly on the center line, and make it two between centers after the firm assembling and do not have any noiselessness that rocks and take place, improved the quality of making differential mechanism widely.
Above-mentioned and other purpose, effect and characteristics of the present invention will be more clear by following drawings and the specific embodiments explanation.
Description of drawings
The front perspective view of the structure improved combining structure of the existing electric bicycle differential mechanism of Fig. 1.
The structurally improved textural association partial section view of the existing differential mechanism of Fig. 2.
The manufacture method first processing procedure schematic diagram of Fig. 3 differential mechanism of the present invention.
The manufacture method second processing procedure schematic diagram of Fig. 4 differential mechanism of the present invention.
Manufacture method the 3rd processing procedure schematic diagram of Fig. 5 differential mechanism of the present invention.
Manufacture method the 4th processing procedure schematic diagram of Fig. 6 differential mechanism of the present invention.
Manufacture method the 5th processing procedure schematic diagram of Fig. 7 differential mechanism of the present invention.
Manufacture method the 6th processing procedure schematic diagram of Fig. 8 differential mechanism of the present invention.
Fig. 9 is a wheel cap schematic diagram of the present invention.
Figure 10 A-Figure 10 C is the assembling schematic diagram of differential mechanism of the present invention.
The perspective exploded view of Figure 11 after for differential mechanism of the present invention assembling.
The specific embodiment
The manufacture method of differential mechanism of the present invention as Fig. 3 to Fig. 9, is described as follows with regard to the manufacture process of the driving gear wheel 1 of differential mechanism:
This processing procedure comprises:
(A) the thick steel pipe 11 of getting a proper width size W and having the 12-15mm thickness T mills at its excircle and to establish an external tooth 111, to form a germule that drives gear wheel 1, as shown in Figure 3;
(B) this drive gear wheel 1 germule two sides respectively first and second round recessed 112,112 of turning ', as shown in Figure 4, its degree of depth is less than 1/2 width W, thereby forms a midfeather 113 between two round recesseds;
(C) on this midfeather 113 uniformly-spaced to be drilled with a plurality of holes 114, as shown in Figure 5;
(D) will have C type retaining ring groove 121,121 differential bevel pinion axle 12,12, be placed in the midfeather 113 in the germule that drives gear wheel 1 all spaces by the tool (not shown) and with this differential bevel pinion axle 12,12 C type retaining ring groove 121, after 121 double as are the locating slot location, use the cast aluminium method to make cast aluminium portion 13, make two differential bevel pinion axles 12,12 centering positively in casting mould, make the germule that drives gear wheel 1, cast aluminium portion 13 and differential bevel pinion axle 12,12 three's sets are one, in casting process, most holes 114 uniformly-spaced to wear on the midfeather 113 of the germule of driving gear wheel 1, be to be used for casting process, make cast aluminium inject these holes 114, with with cast aluminium portion 13) positively be combined into one with the germule that drives gear wheel 1, as shown in Figure 6;
(E) then again with the CNC lathe in the germule both sides that drive gear wheel 1 respectively the shallow circular concave 115,115 of car system ', as shown in Figure 7;
(F) drive the shallow circular concave 115,115 of germule of gear wheel 1 ' on hole 131 equidistantly to wear the plurality of fixed screw, be convenient to fixedly helical teeth wheel cap 4 and as shown in Figure 8, promptly finish driving gear wheel 1 manufacture process thereon; And
(G) more correct for the pivot that makes differentiator, in the both sides that drive gear wheel 1 one helical teeth wheel cap 4 is set respectively again, as shown in Figure 9, this wheel cap 4 has the flange 42 of a just size, this flange 42 is provided with and this circular concave 115,115 ' hole 131 corresponding through holes 44, and the outer peripheral edges 43 of flange 42 are made its diameter to be fastened and is matched with the shallow circular concave 115 that drives gear wheel 1,115 ' diameter, and order drives the plural fixed screw hole 131 of gear wheel 1, can align mutually with the through hole 44 on the wheel cap 4, this wheel cap 4 has again to be supported and differential bevel pinion 3,3 left and right sides wheel shafts 31 that become one, 31 ' use bearing 41, as shown in Figure 9.
The driving gear wheel 1 of differential mechanism of the present invention is according to above-mentioned processing procedure, after making the semi-products shown in Figure 10 A, with differential bevel pinion 2,2 are respectively charged into this differential bevel pinion axle 12, after 12, imbed C type clasp 21 again in c type retaining ring groove 121, promptly finish assembling two differential bevel pinions 2,2, shown in Figure 10 B, then respectively will with differential bevel pinion 3,3 all-in-one-piece left and right sides wheel shafts 31,31 ', bearing 41 with helical teeth wheel cap 4 is supported respectively, the flange 43 cylindrical camphanes of wheel cap 4 are closed in the interior shallow circular concave 115 that drives gear wheel 1,115 ' in, at this moment, two differential bevel pinions 3,3 are engaged in two differential bevel pinions 2 respectively, 2, go into to drive the screw holes 131 of gear wheel l with together fixed differential bevel pinion 3 by through hole 44 reeve screws 5 bolts of wheel cap 4 at last, 3 in driving gear wheel 1, thereby finish the assembling operation of differential mechanism, shown in Figure 10 C.
After the present invention finishes the assembling operation of differential mechanism, by perspective exploded view shown in Figure 11 as can be known, differential mechanism of the present invention oneself be reduced to gear wheel 1 and have second pair of differential bevel pinion axle and second pair of differential bevel pinion about two helical teeth wheel caps 4,4.Tool structure therefore of the present invention is simplified, and reduces manufacturing cost and reaches characteristics such as installation easily.
From the above mentioned, the manufacture method of differential mechanism of the present invention as can be known, reduced the part number of packages and reduced cost, be to adopt thick steel pipe to mill external tooth, to overlap the solid tool practice C type retaining ring groove of differential bevel pinion axle double as locating slot is located, it is one that the mountain cast aluminium makes thick steel pipe, cast aluminium portion and the two differential bevel pinion axle sets of milling external tooth, makes to drive gear wheel 1, and the differential bevel pinion axle of again first pair of differential bevel pinion being packed into embeds its c type retaining ring groove with c type clasp and locatees; Then the flange outer rim by two helical teeth wheel caps about second pair of differential bevel pinion axle of support tightly fits in the shallow circular concave that drives the gear wheel both sides, with will drive gear wheel germule, the two pairs of differential bevel pinions, about two helical teeth wheel caps and left and right sides wheel shaft very easily be assembled in very exactly on the center line, and the diaxon that makes it after the firm assembling asks that no any noiselessness that rocks takes place, improved the quality of making differential mechanism widely, this joint is real to be the present invention's quantum jump one of on differential mechanism skill.
Claims (3)
1. the manufacture method of a differential mechanism is characterized by, and this method comprises:
(A) the thick steel pipe (11) of getting certain width mills system one external tooth (111) earlier to form the germule of a driving gear wheel (1) at its external peripheral surface;
(B) in the germule both sides that drive gear wheel (1) turning respectively, to form the midfeather (113) of a T word shape section;
(C) on this midfeather (113), wear a plurality of holes (114);
(D) the differential bevel pinion axle (12) that will have a C type retaining ring groove places in the germule midfeather (113) that drives gear wheel (1), will drive the germule and the differential bevel pinion axle cast solid of gear wheel more exactly with the cast aluminium method;
(E) in germule both sides difference turning one concave surface (151,151 ') that drives gear wheel (1);
(F) on the concave surface that drives gear wheel (1) germule, wear the hole (131) of plural fixed screw again;
(G) first pair of differential bevel pinion (2-2) packed into after wheel shaft (12,12 ') and down go into C type clasp, will have again second pair of differential bevel pinion wheel shaft about two helical teeth wheel caps (4) respectively second pair of differential bevel pinion in the left and right sides is engaged on the differential bevel pinion of this first couple and and is individually fixed on the both sides concave surface that drives gear wheel this two helical teeth wheel cap.
2. the manufacture method of differential mechanism according to claim 1, it is characterized in that, this is arranged at a plurality of holes that drive gear wheel germule midfeather, the casting material of the cast aluminium portion when being used for cast aluminium can inject in these a plurality of holes, is one and make this cast aluminium portion and this two differential bevel pinion axle and this driving gear wheel germule all fixed.
3. the manufacture method of differential mechanism according to claim 1, it is characterized in that, in this processing procedure (D), further comprise with the tool cover being fixed on the C type retaining ring groove of this differential bevel pinion axle, make it the solid tool of double as cover in casting process, this bevel pinion axle is positively located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021313261A CN1485177A (en) | 2002-09-27 | 2002-09-27 | Manufacturing process of differential gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021313261A CN1485177A (en) | 2002-09-27 | 2002-09-27 | Manufacturing process of differential gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1485177A true CN1485177A (en) | 2004-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021313261A Pending CN1485177A (en) | 2002-09-27 | 2002-09-27 | Manufacturing process of differential gear |
Country Status (1)
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|---|---|
| CN (1) | CN1485177A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823198A (en) * | 2010-04-19 | 2010-09-08 | 韶关市正星车轮有限公司 | Processing technology of brake shoe double-shaft device |
| CN102601596A (en) * | 2012-03-29 | 2012-07-25 | 浙江吉利汽车研究院有限公司 | Method for machining differential gear ring components |
| CN103639666A (en) * | 2013-12-04 | 2014-03-19 | 鞠小平 | Method for machining front shell of differential mechanism |
| CN104476183A (en) * | 2014-11-11 | 2015-04-01 | 山东汇金股份有限公司 | Assembling process of gapless differential mechanism |
| CN109195725A (en) * | 2016-04-01 | 2019-01-11 | 麦加戴恩国际有限公司 | The ring gear of the cladding molding of differential mechanism |
| CN111279114A (en) * | 2018-03-28 | 2020-06-12 | 深圳市大疆创新科技有限公司 | Differential gear drive device, stability augmentation mechanism, holder device and shooting equipment |
-
2002
- 2002-09-27 CN CNA021313261A patent/CN1485177A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823198A (en) * | 2010-04-19 | 2010-09-08 | 韶关市正星车轮有限公司 | Processing technology of brake shoe double-shaft device |
| CN101823198B (en) * | 2010-04-19 | 2011-11-23 | 韶关市正星车轮有限公司 | Processing technology of brake shoe double-shaft device |
| CN102601596A (en) * | 2012-03-29 | 2012-07-25 | 浙江吉利汽车研究院有限公司 | Method for machining differential gear ring components |
| CN102601596B (en) * | 2012-03-29 | 2015-08-19 | 浙江吉利汽车研究院有限公司 | The processing method of differential mechanism gear ring assembly |
| CN103639666A (en) * | 2013-12-04 | 2014-03-19 | 鞠小平 | Method for machining front shell of differential mechanism |
| CN103639666B (en) * | 2013-12-04 | 2016-07-06 | 鞠小平 | A kind of processing method of front shell of differential |
| CN104476183A (en) * | 2014-11-11 | 2015-04-01 | 山东汇金股份有限公司 | Assembling process of gapless differential mechanism |
| CN104476183B (en) * | 2014-11-11 | 2017-12-29 | 山东汇金股份有限公司 | Gapless differential mechanism assembly technology |
| CN109195725A (en) * | 2016-04-01 | 2019-01-11 | 麦加戴恩国际有限公司 | The ring gear of the cladding molding of differential mechanism |
| CN111279114A (en) * | 2018-03-28 | 2020-06-12 | 深圳市大疆创新科技有限公司 | Differential gear drive device, stability augmentation mechanism, holder device and shooting equipment |
| CN111279114B (en) * | 2018-03-28 | 2021-08-31 | 深圳市大疆创新科技有限公司 | Differential gear drive device, stability augmentation mechanism, holder device and shooting equipment |
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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 |