CN201871919U - Adapter device for synchronous butt of main cone nut and flange of car drive axle assembly - Google Patents
Adapter device for synchronous butt of main cone nut and flange of car drive axle assembly Download PDFInfo
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- CN201871919U CN201871919U CN2010205197386U CN201020519738U CN201871919U CN 201871919 U CN201871919 U CN 201871919U CN 2010205197386 U CN2010205197386 U CN 2010205197386U CN 201020519738 U CN201020519738 U CN 201020519738U CN 201871919 U CN201871919 U CN 201871919U
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- adapter
- urceolus
- inner core
- flare nut
- flange
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Abstract
The utility model relates to an adapter device for synchronous butt of a main cone nut and a flange of a car drive axle assembly, which comprises an inner adapter barrel, a split gland and an outer adapter barrel, wherein the inner adapter barrel and the outer adapter barrel are both provided with inner bores; the inner bore of the inner adapter barrel is in a shape meshed with the outer diameter of the main cone nut; the outer circumferential surface of the inner adapter barrel is provided with a cylindrical shaft shoulder in the middle; the outer circumference of the cylindrical shaft shoulder is matched with the inner circumference of the outer adapter barrel so that the inner adapter barrel is concentrically embedded in the outer adapter barrel; the split gland has a semi-circle step structure; and the split gland is fixedly connected with the outer adapter barrel to prevent the outer adapter barrel from falling off from the inner adapter barrel and enable the outer adapter barrel to rotate relatively to the inner adapter barrel. The benefit of the adapter device is as follows: a screwing manner by rotating the main cone nut has better accurate control effect and better working efficiency than the need of fixing a main cone flange in the prior art.
Description
Technical field
The utility model belongs to automobile technical field, relates in particular to the assembly aid of drive axle assembly.
Background technology
The automobile drive axle assembly (is generally back axle, the 4 wheel driven automobile also comprises propons) be last assembly, the drive axle assembly mainly is made up of parts such as driving axle housing, main reducing gear, differential mechanism and semiaxis, main reducing gear in the drive axle assembly bears bigger axial and radial impact load, and its basic function is to pass to driving wheel at last by the power of transmission assembly input.Main reducing gear claims the main transmission device again, and it is made up of a pair of spiral bevel gear assembly, is respectively drive bevel gear assembly and driven wheel of differential assembly, its effect is to underspeed, increase moment of torsion, change the rotation direction, enough tractive force and proper speed are arranged to guarantee automobile.Wherein, drive bevel gear assembly (hereinafter to be referred as the main cone assembly) is meant the bolster system of drive bevel gear in the automobile main reducer, drive bevel gear and its bolster system make one and constitute the main cone assembly, a pair of single-row tapered roller bearing (hereinafter to be referred as bearing) is distributed in a side of gear, drive bevel gear is to overhang outside bearing, for cantilevered supports.
Be the concrete structure of main cone assembly as shown in Figure 1, the main cone assembly comprises drive bevel gear 1, pair of bearings 21, main cone package shell 3, main cone flange 4 and main flare nut 5, drive bevel gear 1 one ends are gear 11, the other end is an axle 12, be with pair of bearings 21 on the axle 12, the outer ring of single-row tapered roller bearing 21 is with main cone package shell 3, so drive bevel gear 1 main cone package shell 3 rotations relatively; Main cone flange 4 is contained on the axle 12 by the spline adapter sleeve and an end contacts with bearing 21, main flare nut 5 is sleeved on the axle 12 by being threaded and an end contact with main cone flange 4, above-mentioned main flare nut 5 need with hundreds of ox rice moments tighten with the inner ring of guaranteeing bearing 21 and drive bevel gear 1 spools 12 between enough coupling stiffnesses are arranged.
In the assembling process of the drive axle assembly of automobile, tightening of the main flare nut 5 of main cone assembly is quite important, it is used for main cone flange 4 and each end face of bearing 21 inner rings compressed and prevents leakage of oil, and the bearing 21 of giving the main cone assembly provides the pretightning force of certain value, to guarantee that bearing runs well, neither can burn to death, also can not axial float, pretension suitably can improve the reliability and the compactness of connection, also can improve the fatigue strength of connector.Pretightning force deficiency, often compactness, rigidity and the anti-loosening property of influence connection; Yet pretightning force is excessive, when tightening or work the time have overload to produce fracture slightly.Need when therefore assembling main flare nut 5 is applied the definite value moment of torsion, realize the pretension of bearing.
Because 5 pairs of special requirements of pretension of main flare nut of main cone assembly, for the present automatic screwing device both domestic and external of tightening of main flare nut 5 all is fixing main cone flange 4, rotation main flare nut 5 is tightened, this tightening method is to moment of torsion and rotational angle accurately control simultaneously, and inefficiency.
Because the requirement of enterprises production efficiency, in the rundown process of main flare nut 5, can when realizing main flare nut 5 and main cone flange 4 rapid abutting joint just becomes a technical essential.Main flare nut 5 adopts outer hexagonal structure usually, and axle 12 just need rotate a certain angle and could dock with main flare nut 5; And because the influence of the processing technology of part, each part all can have some minute differences dimensionally, this will have influence on main flare nut 5 and axle 12 to the heart, at this moment main flare nut 5 just highlights seriously with spools 12 the problem of docking, and can have a strong impact on the efficiency of assembling of automobile axle.
The utility model content
The purpose of this utility model is the efficiency of assembling for the main flare nut of the main cone assembly that improves vehicle rear axle assembly, has proposed the conversion adapter device that automobile drive axle assembly main flare nut and flange dock synchronously.
To achieve these goals, the technical solution of the utility model is: automobile drive axle assembly main flare nut and the conversion adapter device that flange docks synchronously comprise adapter inner core, dissection type gland and adapter urceolus; Described adapter inner core and adapter urceolus all have endoporus, and the endoporus of described adapter inner core has the shape that is meshed with the main flare nut external diameter; The middle part of the external peripheral surface of adapter inner core has a cylinder shaft shoulder, the excircle of the described cylinder shaft shoulder is complementary so that the concentric adapter urceolus that embeds of adapter inner core with the inner periphery of adapter urceolus, described dissection type gland is the semicircle terraced structure, the interior edge of dissection type gland props up the cylinder shaft shoulder place of adapter inner core, a pair of dissection type gland looping stepped ramp type structure, the ring-shaped step type structure that a pair of dissection type gland forms can be enclosed within on the outer surface of cylinder shaft shoulder top of adapter inner core and be partially submerged in the adapter urceolus, and the dissection type gland is fixedlyed connected the back and come off and can make the relative adapter inner core rotation of adapter urceolus from the adapter inner core in order to prevent the adapter urceolus with the adapter urceolus; Has a pair of projection on the excircle of adapter inner core and adapter urceolus respectively in order to nested with the inner sleeve of automatic screwing device respectively with the recess butt joint on the outer sleeve; The projection of described adapter urceolus have a pair of pin-and-hole in order to the main cone flange on pin-and-hole fixedly connected by outside latch.
The endoporus of described adapter inner core is the six side's polygonized structures that are complementary with the main flare nut external diameter.
The endoporus of described adapter inner core is the bihexagonal polygonized structure that two six side's polygonized structures are combined into, and described six side's polygons and main flare nut external diameter are complementary.
The beneficial effects of the utility model are: after device assembling of the present utility model is finished, in the use, the adapter urceolus is aimed at the pin-and-hole that inserts on the main cone flange with latch, the endoporus of adapter inner core lower end entangles the butt joint that main flare nut is realized device of the present utility model and main cone assembly, two scallops of the outer sleeve of automatic screwing device are entangled two fan-shaped bumps of adapter urceolus, the outer sleeve rotation that two scallops of inner sleeve are entangled two such automatic screwing devices of fan-shaped bump of adapter inner core drives the adapter urceolus rotation of conversion adapter device and the inner sleeve of automatic screwing device is braked, and can monitor screw-down torque and pre-fastening moment simultaneously, just can realize tightening automatically and suitable pretension of main flare nut, need fixedly main cone flange in the prior art relatively, the mode that the rotation main flare nut is tightened has better accurately control effect and operating efficiency.Simultaneously, axis of no-feathering of the present utility model is compact to connecting, and adopts two dissection type glands to lock the adapter urceolus, prevents inside and outside sleeve beating on axis direction.
Description of drawings
Fig. 1 is the main cone assembly assumption diagram of vehicle rear axle assembly.
Fig. 2 is an assembly structure figure of the present utility model.
Fig. 3 is the three-dimensional structure diagram of adapter inner core of the present utility model.
Fig. 4 is the plan structure figure of adapter inner core of the present utility model.
Fig. 5 is the three-dimensional structure diagram of dissection type gland of the present utility model.
Fig. 6 is the three-dimensional structure diagram of adapter urceolus of the present utility model.
Description of reference numerals: drive bevel gear 1, gear 11, bearing 21, axle 12, main cone package shell 3, main cone flange 4, main flare nut 5, adapter inner core 6, the cylinder shaft shoulder 62, projection 61, dissection type gland 7, interior along 71, adapter urceolus 8, projection 81, the shaft shoulder 82, latch 9.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 2, automobile drive axle assembly main flare nut and the conversion adapter device that flange docks synchronously comprise adapter inner core 6, dissection type gland 7 and adapter urceolus 8.
As shown in Figure 3 and Figure 4, adapter inner core 6 has endoporus, the endoporus of adapter inner core 6 is that two six side's polygons are combined into the bihexagonal polygonized structure, six side's polygons be complementary with main flare nut 5 external diameters, the middle part of the external peripheral surface of adapter inner core 6 has a cylinder shaft shoulder 62, the excircle of the described cylinder shaft shoulder 62 is complementary so that adapter inner core 6 concentric embedding adapter urceolus 8 with the inner periphery of adapter urceolus 8, the lower end of the excircle of adapter inner core 6 is the step shape structure, and this structure mainly is easier and main flare nut 5 engagements for the ease of the lower end of adapter inner core 6.
As shown in Figure 5, dissection type gland 7 is the semicircle terraced structure, dissection type gland 7 interior along the 71 cylinder shaft shoulder 62 places that prop up adapter inner core 6, a pair of dissection type gland 7 looping stepped ramp type structures, the ring-shaped step type structure that a pair of dissection type gland 7 forms can be enclosed within on the outer surface of the cylinder shaft shoulder 62 tops of adapter inner core 6 and be partially submerged in the adapter urceolus 8, and dissection type gland 7 is fixedlyed connected the back and come off and adapter urceolus 8 relative adapter inner cores 6 are rotated from adapter inner core 6 in order to prevent adapter urceolus 8 with adapter urceolus 8.
As shown in Figure 6, adapter urceolus 8 also has endoporus, the excircle of the cylinder shaft shoulder 62 of the inner periphery of the endoporus of adapter urceolus 8 and adapter inner core 6 is complementary, the lower end of the endoporus of adapter urceolus 8 has the shaft shoulder 82, the lower surface of the cylinder shaft shoulder 62 of adapter inner core 6 can cooperate with the upper surface of the shaft shoulder 82 of adapter urceolus 8, prevents that adapter inner core 6 from moving axially downwards.
Has a pair of projection 81 on the excircle of adapter inner core 6 and adapter urceolus 8 respectively in order to nested with the recess butt joint that is complementary on the inner sleeve of the automatic screwing device of outside and the outer sleeve respectively; The projection of described adapter urceolus 8 have a pair of pin-and-hole 82 in order to main cone flange 4 on pin-and-hole fixedly connected by outside latch 9.The projection 61 of adapter inner core 6 in the present embodiment, the projection 81 of adapter urceolus 8 is 45 ° of secter pats, the recess shape that is complementary on the inner sleeve of corresponding automatic screwing device and the outer sleeve is the scallop more than or equal to 45 °, preferred 90 °, the angle intervals scope that enlarges recess is to be convenient to butt joint, when recess greater than projection 61,81 o'clock, be easy to dock successfully with projection, after rotating to an angle, always can drive projection rotates together, the shape of projection 61 and projection 81 can be set arbitrarily as required in addition, therefore the projection at this place and recessed are complementary and have implication widely, select just to think that recess and projection are complementary as long as guarantee that the inner sleeve of outside automatic screwing device and recess on the outer sleeve can dock nested with projection and drive projection.
The endoporus of above-mentioned adapter inner core 6 is that two interior six side's polygons that are complementary with main flare nut 5 external diameters are combined into the bihexagonal polygonized structure, can entangle hexagonal main flare nut 5 fast, but, also can consider directly to adopt the six side's polygonized structures that are complementary with main flare nut 5 external diameters, be that such being not easy realizes rapid abutting joint, either way can realize engagement.
Those of ordinary skill in the art will appreciate that embodiment described here is in order to help reader understanding's principle of the present utility model, should to be understood that protection domain of the present utility model is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not break away from the utility model essence according to disclosed these technology enlightenments of the utility model, and these distortion and combination are still in protection domain of the present utility model.
Claims (4)
1. automobile drive axle assembly main flare nut and the conversion adapter device that flange docks synchronously is characterized in that, described conversion adapter device comprises adapter inner core, dissection type gland and adapter urceolus; Described adapter inner core and adapter urceolus all have endoporus, and the endoporus of described adapter inner core has the shape that is meshed with the main flare nut external diameter; The middle part of the external peripheral surface of adapter inner core has a cylinder shaft shoulder, the excircle of the described cylinder shaft shoulder is complementary so that the concentric adapter urceolus that embeds of adapter inner core with the inner periphery of adapter urceolus, described dissection type gland is the semicircle terraced structure, the interior edge of dissection type gland props up the cylinder shaft shoulder place of adapter inner core, a pair of dissection type gland looping stepped ramp type structure, the ring-shaped step type structure that a pair of dissection type gland forms can be enclosed within on the outer surface of cylinder shaft shoulder top of adapter inner core and be partially submerged in the adapter urceolus, and the dissection type gland is fixedlyed connected the back and come off and can make the relative adapter inner core rotation of adapter urceolus from the adapter inner core in order to prevent the adapter urceolus with the adapter urceolus; Has a pair of projection on the excircle of adapter inner core and adapter urceolus respectively in order to nested with the inner sleeve of automatic screwing device respectively with the recess butt joint on the outer sleeve; The projection of described adapter urceolus have a pair of pin-and-hole in order to the main cone flange on pin-and-hole fixedly connected by outside latch.
2. automobile drive axle assembly main flare nut according to claim 1 and the conversion adapter device that flange docks synchronously is characterized in that, the endoporus of described adapter inner core is the six side's polygonized structures that are complementary with the main flare nut external diameter.
3. the conversion adapter device that automobile drive axle assembly main flare nut according to claim 1 and flange dock synchronously, it is characterized in that, the endoporus of described adapter inner core is the bihexagonal polygonized structure that two six side's polygonized structures are combined into, and described six side's polygons and main flare nut external diameter are complementary.
4. automobile drive axle assembly main flare nut according to claim 1 and the conversion adapter device that flange docks synchronously is characterized in that the projection of above-mentioned adapter urceolus is a secter pat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205197386U CN201871919U (en) | 2010-09-07 | 2010-09-07 | Adapter device for synchronous butt of main cone nut and flange of car drive axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205197386U CN201871919U (en) | 2010-09-07 | 2010-09-07 | Adapter device for synchronous butt of main cone nut and flange of car drive axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201871919U true CN201871919U (en) | 2011-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205197386U Expired - Fee Related CN201871919U (en) | 2010-09-07 | 2010-09-07 | Adapter device for synchronous butt of main cone nut and flange of car drive axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201871919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000967A (en) * | 2010-09-07 | 2011-04-06 | 电子科技大学 | Adaptor device for synchronous butt joint of main cone nut and flange of automobile drive axle assembly |
| CN102220977A (en) * | 2011-07-06 | 2011-10-19 | 宁波得利时泵业有限公司 | Expansion bushing device of birotor pump |
-
2010
- 2010-09-07 CN CN2010205197386U patent/CN201871919U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000967A (en) * | 2010-09-07 | 2011-04-06 | 电子科技大学 | Adaptor device for synchronous butt joint of main cone nut and flange of automobile drive axle assembly |
| CN102000967B (en) * | 2010-09-07 | 2013-01-09 | 电子科技大学 | Adaptor device for synchronous butt joint of main cone nut and flange of automobile drive axle assembly |
| CN102220977A (en) * | 2011-07-06 | 2011-10-19 | 宁波得利时泵业有限公司 | Expansion bushing device of birotor pump |
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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: 20110622 Termination date: 20110907 |