CN202283661U - Riveting device for lock nut of main speed reducer of automotive rear axle - Google Patents
Riveting device for lock nut of main speed reducer of automotive rear axle Download PDFInfo
- Publication number
- CN202283661U CN202283661U CN2011203812968U CN201120381296U CN202283661U CN 202283661 U CN202283661 U CN 202283661U CN 2011203812968 U CN2011203812968 U CN 2011203812968U CN 201120381296 U CN201120381296 U CN 201120381296U CN 202283661 U CN202283661 U CN 202283661U
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- CN
- China
- Prior art keywords
- riveting
- link rod
- riveted joint
- riveting cutter
- rotating shaft
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- Expired - Lifetime
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Abstract
The utility model relates to a riveting device for a lock nut of a main speed reducer of an automotive rear axle. The riveting device comprises a riveting cylinder, a riveting arm bracket, a large riveting link bar, a riveting knife guiding pin, a riveting knife, a riveting knife guiding seat, a first large link bar rotating shaft, a second large link bar rotating shaft, a first small link bar rotating shaft, a riveting swinging arm, a small riveting link bar, a second small link bar rotating shaft and a bushing tube, wherein, the large riveting link bar and the riveting swinging arm are rotatablely connected with the second large link bar rotating shaft through the riveting arm bracket so as to form a lever structure which takes the riveting arm bracket as a fixed fulcrum and takes the large riveting link bar as a force arm; the large riveting link bar, the small riveting link bar and the riveting knife form a sliding block connecting rod force amplifier; in addition, the sliding block connecting rod force amplifier can push the riveting knife to do a linear reciprocating movement within a certain range relatively to the riveting knife guiding seat through the small riveting link bar when the riveting cylinder is lifted up or pulled downwards, so as to lead the riveting knife to spot-rivet a main cone nut automatically. The riveting device has the benefit that the assembling quality and the automation degree of the main cone nut are improved obviously.
Description
Technical field
The utility model belongs to automobile technical field, relates in particular to a kind of riveting device of automobile axle main reducing gear locking nut.
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 with passing to driving wheel at last by the power of transmission assembly input.Main reducing gear is claimed 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 process 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, and drive bevel gear is to overhang outside bearing, for cantilevered supports.
As Fig. 1, Fig. 2 a, Fig. 2 b, Fig. 2 c and shown in Figure 3 be the concrete structure of main cone assembly, the main cone assembly comprises drive bevel gear 1, pair of bearings 5,6; Main cone package shell 3, main cone flange 4 and main flare nut 2, drive bevel gear 1 one ends are gear 14; The other end is an axle 11; Be with pair of bearings 5,6 on the axle 11, the outer ring of single-row tapered roller bearing 5,6 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 11 through the spline adapter sleeve and an end contacts with bearing 5; Main flare nut 2 is sleeved on the axle 11 through being threaded and an end contacts with main cone flange 4; Above-mentioned main flare nut 2 need with hundreds of ox rice moments tighten with the inner ring of guaranteeing bearing 5 and drive bevel gear 1 spools 11 between enough coupling stiffnesses are arranged; And to main flare nut 2 rivetings be made its cylinder place, upper end distortion paste in the fluting of axle 11 and realize nut anti-looseness after tightening.
In the assembling process of the drive axle assembly of automobile; Tightening of the main flare nut 2 of main cone assembly is locking quite important; It is used for main cone flange 4 and each end face of bearing 5 inner rings compressed and prevents leakage of oil, and the pretightning force of certain value is provided for the bearing 5 of main cone assembly, runs well to guarantee bearing.Pretightning force is not enough, 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, and to do locking processing and realize the permanently effective of nut pretension.Need when therefore assembling main flare nut 2 is applied the definite value moment of torsion, realize the pretension of bearing; And after pretension, main flare nut 2 rivetings are realized nut anti-looseness.
Because 2 pairs of locking specific (special) requirements of pretension of main flare nut of main cone assembly; For tightening of main flare nut 2 generally all is to adopt special automatic screwing device now both at home and abroad; The CN201010274339.2 patent of submitting like the applicant is the isolated plant that is used for automatic screwing device, and locking for the riveting of main flare nut then is that manual work is knocked, and this riveting method not only automaticity is not high; And be unfavorable for quality control, can not satisfy the requirement of enterprises production efficiency.
The utility model content
The purpose of the utility model is assembly quality and the automaticity for the main flare nut of the main cone assembly that improves vehicle rear axle assembly, has proposed to be used for the riveting device of automobile axle main reducing gear locking nut.
The technical scheme of the utility model is: be used for the riveting device of automobile axle main reducing gear locking nut, comprise the riveted joint cylinder, rivet arm support, rivet big link rod, riveting cutter guide finger, riveting cutter, riveting cutter guide holder, first link rod rotating shaft, second largest link rod rotating shaft, the first little link rod rotating shaft, rivet swing arm, rivet little link rod, second little link rod rotating shaft and the lining tube; The big link rod of said riveted joint is one to have the crooked body of rod of certain angle; Said riveted joint swing arm is a folder shape body of rod; The big link rod of said riveted joint, riveted joint swing arm and riveted joint arm support through second largest link rod rotating shaft be movably connected to form with the riveted joint arm support is fixed pivot, riveting the lever construction that big link rod is the arm of force, an end of the big link rod of said riveted joint embeds in the riveted joint swing arm; Said riveted joint cylinder is used for applying external force to the big link rod of riveted joint through the other end flexible connection of first link rod rotating shaft with the big link rod of riveted joint; Said lining tube is used for fixing main flare nut, and said lining tube embeds in the hole of mating with the lining tube in the riveted joint swing arm; Said riveting cutter guide holder has the groove that is used to install the riveting cutter; Said riveting cutter is embedded in the groove of riveting cutter guide holder and is connected overall structure of back formation with riveting cutter guiding seat pin; Have corresponding pin-and-hole on said riveting cutter and the riveting cutter guide holder respectively, the pin-and-hole on the said riveting cutter is a strip-type hole, plays certain guide effect; Its permission riveting cutter riveting cutter guide holder is relatively done straight reciprocating motion in certain size, said riveting cutter guide holder embeds and also is fixedly connected in the riveted joint swing arm; One end of the little link rod of said riveted joint flexibly connects through the second little link rod rotating shaft and riveting cutter, and the other end is connected with the big link rod of riveted joint through the first little link rod rotating shaft, like this, rivets big link rod, the little link rod of riveted joint and riveting cutter and forms a slide block connecting rod force-increasing mechanism; Said slide block connecting rod force-increasing mechanism can promote the relative riveting cutter of riveting cutter guide holder and does straight reciprocating motion within the specific limits with so that the riveting cutter is put the riveting main flare nut automatically when the riveted joint cylinder rises or be drop-down through riveting little link rod.
The beneficial effect of the utility model: 1. it is parallel mobile to adopt the slide block connecting rod force-increasing mechanism to promote the riveting cutter, with less motive force nut is carried out riveting energetically.2. rivet big link rod and riveted joint swing arm coaxial rotation, under a thrust unit effect, realize entangling nut and two actions of riveting automatically.3. lining tube and riveting cutter guide holder all are fixed on riveted joint swing arm upper side, are convenient to assembling, change.4. the utility model also designs riveting cutter guide holder and riveting cutter guide finger is controlled riveting cutter direction of feed and distance respectively, thereby can put riveting locking nut breach accurately and effectively.5. the fixing main flare nut of the utility model design lining tube avoids when some riveting that the main flare nut displacement is loosening to cause a riveting inefficacy.Owing on the said structure, therefore adopt the utility model device to significantly improve the assembly quality and the automaticity of main flare nut.
Description of drawings
Fig. 1 is the main cone assembled structural representation of vehicle rear axle assembly.
Fig. 2 a, Fig. 2 b and Fig. 2 c are respectively main flare nut cutaway view, vertical view and axonometric drawing.
Fig. 3 is the axonometric drawing of drive bevel gear.
Fig. 4 is the assembling sketch map that the utility model is overlooked direction.
Fig. 5 is the assembling sketch map of the utility model master apparent direction.
Fig. 6 is that the utility model has omitted the assembling explosion sketch map that minor components has kept main working parts.
Description of reference numerals: drive bevel gear 1, axle 11,12, notch 13, gear 14, main flare nut 2, main cone package shell 3; Main cone flange 4, bearing 5,6, riveted joint cylinder 71, riveted joint arm support 72 is riveted big link rod 73; Riveting cutter guide finger 74, riveting cutter 75, riveting cutter guide holder 76, big link rod rotating shaft 77, big link rod rotating shaft 78; Little link rod rotating shaft 79, riveted joint swing arm 710 is riveted little link rod 711, little link rod rotating shaft 712, lining tube 713.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further explanation.
Like Fig. 4, Fig. 5, shown in Figure 6; The riveting device that is used for automobile axle main reducing gear locking nut comprises the little link rod rotating shaft of riveted joint cylinder 71, riveted joint arm support 72, the big link rod of riveted joint 73, riveting cutter guide finger 74, riveting cutter 75, riveting cutter guide holder 76, first link rod rotating shaft 77, second largest link rod rotating shaft 78, first 79, riveted joint swing arm 710, little link rod 711, second little link rod rotating shaft 712 and the lining tube 713 of riveted joint; The big link rod 73 of said riveted joint is one to have the crooked body of rod of certain angle; Said riveted joint swing arm 710 is a folder shape body of rod; The big link rod of said riveted joint 73, riveted joint swing arm 710 and riveted joint arm support 72 are movably connected to form with riveted joint arm support 72 through second largest link rod rotating shaft 78 and are fixed pivot, are the lever construction of the arm of force to rivet big link rod 73 that one end of the big link rod 73 of said riveted joint embeds in the riveted joint swing arm 710; Said riveted joint cylinder 71 is used for applying external force to the big link rod 73 of riveted joint through the other end flexible connection of first link rod rotating shaft 77 with the big link rod 73 of riveted joint; Said lining tube 713 is used for fixing main flare nut 2, and said lining tube 713 embeds in the hole of mating with lining tube 713 in the riveted joint swing arm 710; Said riveting cutter guide holder 76 has the groove that is used to install riveting cutter 75; Said riveting cutter 75 is embedded in the groove of riveting cutter guide holder 76 and is connected overall structure of back formation with riveting cutter guide holder 76 pins; Has corresponding pin-and-hole respectively on said riveting cutter 75 and the riveting cutter guide holder 76; Pin-and-hole on the said riveting cutter 75 is a strip-type hole; Play certain guide effect, its permission riveting cutter 75 riveting cutter guide holder 76 is relatively done straight reciprocating motion in certain size, and said riveting cutter guide holder 76 embeds and also is fixedly connected in the riveted joint swing arm 710; One end of the little link rod 711 of said riveted joint flexibly connects through the second little link rod rotating shaft 712 and riveting cutter 75; The other end is connected with the big link rod 73 of riveted joint through the first little link rod rotating shaft 79; Like this, rivet big link rod 73, the little link rod 711 of riveted joint and riveting cutter 75 and form a slide block connecting rod force-increasing mechanism; Said slide block connecting rod force-increasing mechanism can promote riveting cuttves 75 relative riveting cutter guide holders 76 and does straight reciprocating motion within the specific limits with so that riveting cutter 75 is put riveting main flare nuts 2 automatically when riveted joint cylinder 71 rises or be drop-down through riveting little link rod 711.
Above-mentioned riveted joint cylinder 71 is the power source of this riveting device 7, for a riveting provides pneumatic output.Above-mentioned riveted joint arm support 72 is the riveting device bracing frame, and it is supported on riveting device on the work top; Said riveted joint swing arm 710 is the integral arms of riveting device, riveted joint cylinder 71, riveted joint arm support 72 and rivet the little link rod of big link rod 73, riveted joint 711, riveting cutter guide holder 76 etc. and all be connected with riveted joint swing arm 710; The big link rod of said riveted joint 73, the little link rod 711 of riveted joint and riveting cutter 75 constitute a slide block connecting rod force-increasing mechanism; Its power utilization arm of force principle that will rivet cylinder 6 generations increases and finally acts on gives me a little riveting main reducing gear locking nut 2 on the riveting cutter 75, the lucky correspondence in some riveting position is at notch 13 places of drive bevel gear 1; Said riveting cutter guide holder 76 is riveting cutter 75 guiders, be used to control riveting cutter 75 directions of feed and guarantee riveting cutter 75 relatively riveting cutter guide holder 76 in certain size, do straight reciprocating motion; Said lining tube 713 is a servicing unit, and its effect is fixing main reducing gear locking nut 2, and locking nut 2 displacements are loosening during anti-stop riveting.Said riveted joint swing arm 710 is all passed through bearing pin with riveted joint cylinder 71 with riveted joint arm support 72 and is connected.
Below the operation principle of the utility model is further described: when riveted joint cylinder 71 moves upward; Driving the big link rod 73 of riveted joint is that fulcrum clockwise rotates with second largest link rod rotating shaft 78; Because the connection effect of riveting cutter 75, riveting cutter guide holder 76 and riveted joint swing arm 710, riveted joint swing arm 710 clockwise rotates with the big link rod 73 of riveted joint, and riveted joint swing arm 710 is rotated and when contacting with the main reducing gear lug upper surface, stopped operating; Rivet cylinder 71 this moment and continue the application of force; Rivet the little link rod 711 of big link rod 73 drive riveted joints and move downward, rivet little link rod 711 promotion riveting cuttves 75 and travel forward, realize a some riveting;
When riveted joint cylinder 71 moves downward, rivet big link rod 73 and rotate counterclockwise, drive the little link rod 711 of riveted joint and retract riveting cutter 75, rivet swing arm 710 then and rotate counterclockwise return with the big link rod 73 of riveted joint;
Above process circulation is carried out, and realizes the automation of production, improves the assembly quality and the automaticity of remarkable main flare nut effectively.
Those of ordinary skill in the art will appreciate that embodiment described here is in order to help the principle of reader understanding's the utility model, should to be understood that the protection domain of the 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 teachings of the utility model, and these distortion and combination are still in the protection domain of the utility model.
Claims (1)
1. the riveting device that is used for automobile axle main reducing gear locking nut; It is characterized in that, comprise riveted joint cylinder (71), riveted joint arm support (72), rivet big link rod (73), riveting cutter guide finger (74), riveting cutter (75), riveting cutter guide holder (76), first link rod rotating shaft (77), second largest link rod rotating shaft (78), the first little link rod rotating shaft (79), riveted joint swing arm (710), rivet little link rod (711), the second little link rod rotating shaft (712) and lining tube (713); The big link rod of said riveted joint (73) is one to have the crooked body of rod of certain angle; Said riveted joint swing arm (710) is a folder shape body of rod; The big link rod of said riveted joint (73), riveted joint swing arm (710) are movably connected to form with riveted joint arm support (72) through second largest link rod rotating shaft (78) with riveted joint arm support (72) and be fixed pivot, are the lever construction of the arm of force to rivet big link rod (73), and the end embedding of the big link rod of said riveted joint (73) is riveted in the swing arm (710); Said riveted joint cylinder (71) is used for applying external force to the big link rod of riveted joint (73) through the other end flexible connection of first link rod rotating shaft (77) with the big link rod of riveted joint (73); Said lining tube (713) is used for fixing main flare nut (2), and said lining tube (713) embeds in the hole of mating with lining tube (713) in the riveted joint swing arm (710); Said riveting cutter guide holder (76) has the groove that is used to install riveting cutter (75); Said riveting cutter (75) is embedded in the groove of riveting cutter guide holder (76) and is connected formation overall structure in back with riveting cutter guide holder (76) pin; Has corresponding pin-and-hole on said riveting cutter (75) and the riveting cutter guide holder (76) respectively; Pin-and-hole on the said riveting cutter (75) is a strip-type hole; Play certain guide effect, its permission riveting cutter (75) riveting cutter guide holder (76) is relatively done straight reciprocating motion in certain size, and said riveting cutter guide holder (76) embeds and is fixedly connected in the riveted joint swing arm (710); One end of the little link rod of said riveted joint (711) flexibly connects through the second little link rod rotating shaft (712) and riveting cutter (75); The other end is connected with the big link rod of riveted joint (73) through the first little link rod rotating shaft (79); Like this, rivet big link rod (73), rivet little link rod (711) and riveting cutter (75) and form a slide block connecting rod force-increasing mechanism; Said slide block connecting rod force-increasing mechanism can promote the relative riveting cutter guide holder (76) of riveting cutter (75) through the little link rod of riveted joint (711) and do straight reciprocating motion within the specific limits with so that riveting cutter (75) is put riveting main flare nut (2) automatically when riveted joint cylinder (71) rises or be drop-down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203812968U CN202283661U (en) | 2011-10-10 | 2011-10-10 | Riveting device for lock nut of main speed reducer of automotive rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203812968U CN202283661U (en) | 2011-10-10 | 2011-10-10 | Riveting device for lock nut of main speed reducer of automotive rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202283661U true CN202283661U (en) | 2012-06-27 |
Family
ID=46295195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203812968U Expired - Lifetime CN202283661U (en) | 2011-10-10 | 2011-10-10 | Riveting device for lock nut of main speed reducer of automotive rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202283661U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357791A (en) * | 2011-10-10 | 2012-02-22 | 电子科技大学 | Riveting and pressing device for locking nut of main speed reducer of rear axle of car |
| CN103406460A (en) * | 2013-07-18 | 2013-11-27 | 电子科技大学 | Vertical riveting device for automotive rear bridge main reducing gear locknut |
-
2011
- 2011-10-10 CN CN2011203812968U patent/CN202283661U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357791A (en) * | 2011-10-10 | 2012-02-22 | 电子科技大学 | Riveting and pressing device for locking nut of main speed reducer of rear axle of car |
| CN102357791B (en) * | 2011-10-10 | 2013-09-25 | 电子科技大学 | Riveting and pressing device for locking nut of main speed reducer of rear axle of car |
| CN103406460A (en) * | 2013-07-18 | 2013-11-27 | 电子科技大学 | Vertical riveting device for automotive rear bridge main reducing gear locknut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120627 Effective date of abandoning: 20130925 |
|
| RGAV | Abandon patent right to avoid regrant |