CN104033561A - Automobile and speed reducer thereof - Google Patents
Automobile and speed reducer thereof Download PDFInfo
- Publication number
- CN104033561A CN104033561A CN201410241709.0A CN201410241709A CN104033561A CN 104033561 A CN104033561 A CN 104033561A CN 201410241709 A CN201410241709 A CN 201410241709A CN 104033561 A CN104033561 A CN 104033561A
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- China
- Prior art keywords
- speed reducer
- gear
- axle housing
- planet wheel
- poor
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Classifications
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- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/16—Axle housings
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- 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
- F16H48/40—Constructional details characterised by features of the rotating cases
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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/03—Gearboxes; Mounting gearing therein characterised by means for reinforcing gearboxes, e.g. ribs
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- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/037—Gearboxes for accommodating differential gearings
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- 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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Retarders (AREA)
Abstract
The invention discloses an automobile and a speed reducer of the automobile. The speed reducer comprises a main case (C), a driving gear shaft (B) arranged in the main case (C) and a differential mechanism (A) arranged on the main case (C). A driven gear (A10) of the differential mechanism (A) is meshed with a driving gear of the driving gear shaft (B). The driven gear (A10) and the driving gear are both gears with equal-depth teeth. The speed reducer effectively increases the strength of the shell of the differential mechanism, facilitates installation of a rotary gear set, effectively improves rotation stability after a half axle gear and a planetary gear are meshed with each other and then reduces operating noise. According to the speed reducer, because the driving gear on the driving gear shaft and the driven gear are both bevel gears, and the driving gear and the driven gear are both set to be the gears with the equal-depth teeth, the transmission error and transmission noise of the gears with the equal-depth teeth are small compared with transmission of gears with shrinkage teeth in the prior art, and the operating noise of the speed reducer is effectively lowered.
Description
Technical field
The present invention relates to automobile equipment technical field, particularly a kind of automobile and speed reducer thereof.
Background technique
Speed reducer plays coupling rotating speed and transmitting torque between prime mover and working machine or actuator, and speed reducer is a kind of relatively accurate machinery, and the object that uses it is to reduce rotating speed, increases torque, and in modern mechanical, application is very extensive.
At present, the speed reducer of applying on automobile has differential mechanism more.The driving gear of speed reducer is umbrella gear with the driven gear that is fixedly installed on differential mechanism outside, and the umbrella gear on it is tapered tooth.In speed reducer working procedure, gear-driven noise is larger.
Therefore, how reducing the running noise of speed reducer, is the art personnel problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides a kind of speed reducer, to reduce the running noise of speed reducer.The present invention also provides a kind of automobile with above-mentioned speed reducer.
For achieving the above object, the invention provides following technological scheme:
A kind of speed reducer, comprising: casing, be arranged at the driving gear shaft in described casing and be arranged at the differential mechanism on casing, the driven gear of described differential mechanism engages with the driving gear of described driving gear shaft;
Described driven gear and described driving gear are Equidep gear.
Preferably, in above-mentioned speed reducer, described differential mechanism comprises poor shell and is arranged at the turning gear wheels in described poor shell;
The poor cap that described poor shell comprises poor shell body and is fixedly connected with described poor shell body, described poor shell body and described poor cap are arranged along axial direction;
Described turning gear wheels comprise: planetary pinion, and described planetary quantity is three above and being circumferentially uniformly distributed along described poor shell; Planet axis assembly, described planet axis assembly comprises planet wheel shaft, the axis of described planet wheel shaft is in the same plane; Differential gear, described differential gear engages with described planetary pinion.
Preferably, in above-mentioned speed reducer, described planetary quantity is four;
Described planet axis assembly also comprises support, and described planet wheel shaft is arranged on described support;
Described planet wheel shaft comprises a first row spider gear shaft and two the second planet wheel shafts, described support is arranged in the middle of described the first row spider gear shaft, two described the second planet wheel shafts are symmetricly set in the both sides of described the first row spider gear shaft, and the axis of described the second planet wheel shaft is vertical with the axis of described the first row spider gear shaft.
Preferably, in above-mentioned speed reducer, on described planet wheel shaft, be provided with the flat position of oil duct.
Preferably, in above-mentioned speed reducer, be provided with the fixed via for fixing described planet wheel shaft on described poor shell body, the end of described planet wheel shaft is higher than the outer surface of described fixed via;
The inner ring of driven gear and the end of described planet wheel shaft that on described speed reducer, are sheathed on described poor shell outer wall offset.
Preferably, in above-mentioned speed reducer, described poor shell body and described poor cap are by fixing to the bolt of the fixing described driven gear of described poor shell.
Preferably, in above-mentioned speed reducer, described poor shell body is along being circumferentially evenly equipped with multiple oil inlet holes.
Preferably, in above-mentioned speed reducer, described poor shell body and described poor cap are located by seam.
Preferably, in above-mentioned speed reducer, described planetary pinion is arranged with the spherical pad of nitrocarburizing processing away from one end of tooth; Described differential gear is arranged with the semiaxis pad of nitrocarburizing processing away from one end of tooth.
Preferably, in above-mentioned speed reducer, the bearing support bottom surface of described casing is provided with bottom stiffening rib; The quantity of described bottom stiffening rib is multiple and is divergent shape setting.
The embodiment of the present invention also provides a kind of automobile, comprises axle housing and is installed on the speed reducer on described axle housing, it is characterized in that, described speed reducer is the speed reducer as described in above-mentioned any one.
Preferably, in above-mentioned automobile, the bearing support arranged outside of the casing of described speed reducer has positioning convex, is provided with the locating slot matching with described positioning convex on described axle housing.
Preferably, in above-mentioned automobile, described axle housing is provided with bearing cap away from a side of described speed reducer, is provided with the positioning spigot annulus matching with described bearing cap on described axle housing;
On described bearing cap, be provided with multiple positioning boss, its concentric circle along described bearing cap is uniformly distributed; On described axle housing, be provided with the positioning groove suitable with described positioning boss; Or, on described bearing cap, being provided with multiple positioning grooves, its concentric circle along described bearing cap is uniformly distributed; On described axle housing, be provided with the positioning boss suitable with described positioning groove.
Preferably, in above-mentioned automobile, described axle housing is provided with bearing cap away from a side of described speed reducer, is symmetrically arranged with the first plane of orientation on described bearing cap, is provided with the second plane of orientation matching with described the first plane of orientation on described axle housing;
Described the second plane of orientation is arranged along the length direction of described axle housing.
Preferably, in above-mentioned automobile, the arranged outside of described bearing cap has stiffening rib.
Can find out from above-mentioned technological scheme, speed reducer provided by the invention, because the driving gear on driving gear shaft and driven gear are umbrella gear, driven gear and driving gear are set to Equidep gear, compared with using tapered tooth gear transmission in prior art, Equidep gear drive error is little and transmission noise is little, effectively reduces the running noise of speed reducer.
The present invention also provides a kind of automobile with above-mentioned speed reducer, and because above-mentioned speed reducer has above-mentioned technique effect, the automobile with above-mentioned speed reducer also should have identical technique effect, at this not in detailed introduction.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The cross-sectional schematic of the speed reducer that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the differential mechanism that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is the cut-away illustration along A-A cutting plane in Fig. 2;
Fig. 4 is the cut-away illustration along B-B cutting plane in Fig. 2;
The structural representation of the planet axis assembly that Fig. 5 provides for the embodiment of the present invention;
The cross-sectional schematic of the planet axis assembly that Fig. 6 provides for the embodiment of the present invention;
The left view of the differential mechanism that Fig. 7 provides for the embodiment of the present invention;
The structural representation of the turning gear wheels that Fig. 8 provides for the embodiment of the present invention;
The elevational schematic view of the speed reducer that Fig. 9 provides for the embodiment of the present invention;
Figure 10 is for looking schematic diagram in the right side of the speed reducer that the embodiment of the present invention provides;
The speed reducer that Figure 11 provides for the embodiment of the present invention and the mounting structure schematic diagram of axle housing;
The first structural representation of the axle housing that Figure 12 provides for the embodiment of the present invention;
Figure 13 is the partial enlarged drawing of E part in Figure 11;
The second structural representation of the axle housing that Figure 14 provides for the embodiment of the present invention.
Wherein,
Differential mechanism-A, planetary pinion-A1, differential gear-A2, the first row spider gear shaft-A3, the second planet wheel shaft-A4, support-A5, spherical pad-A6, semiaxis pad-A7, poor shell body-A8, oil inlet hole-A81, poor cap-A9 driven gear-A10, driving gear shaft-B, casing-C, bottom stiffening rib-C1, positioning convex-C2, bearing support-C3, snap close-C4, adpting flange-C5, O RunddichtringO-C6, pad-C7, axle housing-D, locating slot-D1, positioning spigot annulus-D2, positioning groove-D3, the second plane of orientation-D4.
Embodiment
The invention discloses a kind of speed reducer, to reduce the running noise of speed reducer.The present invention also provides a kind of automobile with above-mentioned speed reducer.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment who obtains under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the cross-sectional schematic of the speed reducer that Fig. 1 provides for the embodiment of the present invention.
The speed reducer that the embodiment of the present invention provides comprises casing C, is arranged at the driving gear shaft B in casing C and is arranged at the differential mechanism A on casing C, and the driven gear A10 of differential mechanism A engages with the driving gear of driving gear shaft B; Driven gear A10 and driving gear are Equidep gear.
The speed reducer that the embodiment of the present invention provides, because the driving gear on driving gear shaft B and driven gear A10 are umbrella gear, driven gear A10 and driving gear are set to Equidep gear, compared with using tapered tooth gear transmission in prior art, Equidep gear drive error is little and transmission noise is little, effectively reduces the running noise of speed reducer.
Please refer to Fig. 2, Fig. 3 and Fig. 4, the structural representation of the speed reducer that Fig. 2 provides for the embodiment of the present invention; Fig. 3 is the cut-away illustration along A-A cutting plane in Fig. 2; Fig. 4 is the cut-away illustration along B-B cutting plane in Fig. 2.
The speed reducer that the embodiment of the present invention provides, comprises poor shell and is arranged at the turning gear wheels in poor shell, the poor cap A9 that poor shell comprises poor shell body A8 and is fixedly connected with poor shell body A8, and poor shell body A8 and poor cap A9 arrange along axial direction; Turning gear wheels comprise: planetary pinion A1, and the quantity of planetary pinion A1 is three above and being circumferentially uniformly distributed along poor shell; Planet axis assembly, planet axis assembly comprises support A5 and is arranged at the planet wheel shaft on support A5, the axis of planet wheel shaft is in the same plane; Differential gear A2, differential gear A2 engages with planetary pinion A1.
The speed reducer that the embodiment of the present invention provides, the quantity of planetary pinion A1 is set to more than three, because the quantity of planetary pinion A1 increases, inconvenience is installed on turning gear wheels in poor shell, and then by poor shell being designed to the split-type structural that poor shell body A8 coordinates with poor cap A9, avoided, on poor shell, excessive turning gear wheels construction opening is set, effectively improved poor shell intensity, be also convenient to install turning gear wheels.Planetary pinion A1 rotates along planet wheel shaft, and then drives differential gear A2 to rotate, and compared with prior art, has increased the quantity of planetary pinion A1, has effectively improved the stability of rotating after differential gear A2 engages with planetary pinion A1, and then has reduced running noise.
Preferably, the quantity of planetary pinion A1 is four.
As shown in Figure 5 and Figure 6, in the speed reducer providing in the embodiment of the present invention, planet axis assembly also comprises support A5, and planet wheel shaft is arranged on support A5; Planet wheel shaft comprises a first row spider gear shaft A3 and two the second planet wheel shaft A4, support A5 is arranged in the middle of the first row spider gear shaft A3, two the second planet wheel shaft A4 are symmetricly set in the both sides of the first row spider gear shaft A3, and the axis of the second planet wheel shaft A4 is vertical with the axis of the first row spider gear shaft A3.Wherein, the first row spider gear shaft A3 is long wheel shaft, and the second planet wheel shaft A4 is short wheel shaft, and by support, A5 fixes, and forms " ten " font planet axis assembly.
Two long wheel shafts also can be set, and position arranges groove therebetween, and the degree of depth of groove and width are all more than or equal to the radius of long wheel shaft, by being worked in coordination in the groove position of two long wheel shafts, forms " ten " word planet axis assembly.
For the ease of lubricating of planetary pinion A1, on planet wheel shaft, be provided with the flat position of oil duct a.By the flat position of oil duct a, make lubricant oil lubricated to the planetary pinion A1 on planet wheel shaft along the flat position of the oil duct on planet wheel shaft a.
Further, in the middle of support A5, be provided with filler opening.
At present, planet wheel shaft is fixed in poor shell by pin, need to be on poor shell pin hole processing, increase the difficulty of processing of poor shell, and stress easily occurs concentrate, reduce the bulk strength of poor shell.And in the embodiment of the present invention, on poor shell body A8, being provided with the fixed via for fixing planet wheel shaft, the end of planet wheel shaft is higher than the outer surface of fixed via; The inner ring of driven gear and the end of planet wheel shaft that on speed reducer, are sheathed on poor shell outer wall offset.The speed reducer that the present embodiment provides, planet wheel shaft directly compresses by driven gear, reaches the effect of fixing planet wheel shaft, and, avoid pin-and-hole processing, reduce the difficulty of processing of poor shell, and then reduced processing cost; And, improved the bulk strength of poor shell.
Poor shell body A8 and poor cap A2 fix by bolt from driven gear to poor shell that fix.Be the poor cap A2 of screw bolt passes, poor shell body A8 and driven gear, by the bolt hole screw-internal thread fit on outside thread and the driven gear of bolt.By bolt tightening, complete the fixing of poor cap A2, poor shell body A8 and driven gear.
As shown in Figure 7, enter for the ease of lubricant oil, poor shell body A8 is along being circumferentially evenly equipped with multiple oil inlet hole A81.
Poor shell body A8 and poor cap A2 locate by seam.In the present embodiment, on poor cap A2, be provided with male half coupling, on poor shell body A8, be provided with the recessed seam matching with it.
As shown in Figure 8, in order to reduce frictional loss.Planetary pinion A1 is arranged with the spherical pad A6 of nitrocarburizing processing away from one end of tooth.Differential gear A2 is arranged with the semiaxis pad A7 of nitrocarburizing processing away from one end of tooth.
As shown in Figure 9, the bearing support bottom surface of casing C is provided with bottom stiffening rib C1.In order to improve the stiffening effect of bottom stiffening rib C1, the quantity of bottom stiffening rib C1 is multiple and is divergent shape setting.That is, bottom stiffening rib C1 does not be arranged in parallel, but a part is obliquely installed, and has improved the distribution consistency degree of bottom stiffening rib C1 on bearing support bottom surface.
As described in Figure 10, on the casing C of speed reducer, be provided with snap close C4, to guarantee the stability of strutting system of bearings differential mechanism A.Wherein, snap close C4 can be monodactyle snap close, can be also two pawl snap closes.It is upper that snap close C4 is bolted on bearing support C3, and the axis of bolt, through the center of circle of bearing, improves constant intensity and the balance of snap close C4 then.Further, in order to improve the stability maintenance of snap close C4, snap close C4 is upper pass for bolt fixed hole be circular hole.
In order to improve sealability, sealant layer is smeared in the many places of speed reducer, and increases O RunddichtringO etc.As shown in Figure 1, in the time of assembly connection flange C5, first, by smearing fit sealing glue-line on the main tooth spline on driving gear shaft B, refill accessory acting flange C5.On main tooth thread on movable gear shaft B, be coated with fit sealing glue-line.Between locking nut and adpting flange C5, increase O RunddichtringO C6, and, O RunddichtringO seal groove on locking nut and/or adpting flange C5, increased, to improve the stability maintenance of O RunddichtringO C6.
And, the side of this bearing away from driving gear adjusted to in the position that was originally arranged at the pad C7 between the driving gear of driving gear shaft B and bearing that it closes on, on the bearing support that upper this bearing of casing C is corresponding.
As shown in Figure 5, adpting flange C5 comprises linkage section, intermediate section and supporting section, and intermediate section is cone structure, and the large end of cone structure is connected with supporting section.
The embodiment of the present invention also provides a kind of automobile, comprises axle housing D and is installed on the speed reducer on axle housing D, and speed reducer is as above-mentioned any speed reducer.Because above-mentioned speed reducer has above-mentioned technique effect, the automobile with above-mentioned speed reducer also should have identical technique effect, at this not in detailed introduction.
As shown in figure 11, the bearing support C3 arranged outside of the casing C of speed reducer has positioning convex C2, is provided with the locating slot D1 matching with positioning convex C2 on axle housing D.By coordinating of positioning convex C2 and locating slot D1, improve the accurate positioning of speed reducer and axle housing D.
As shown in Figure 12 and Figure 13, axle housing D is provided with bearing cap away from a side of speed reducer, is provided with the positioning spigot annulus D2 matching with bearing cap on axle housing D; On bearing cap, be provided with multiple positioning boss, its concentric circle along bearing cap is uniformly distributed; On axle housing D, be provided with the positioning groove D3 suitable with positioning boss.In the present embodiment, the quantity of positioning boss is 4 and is uniformly distributed along concentric circle, makes the quantity of the upper positioning groove D3 arranging of axle housing D be also 4, and being circumferentially uniformly distributed along same circle.By coordinating of positioning boss and positioning groove D3, effectively improve the accurate positioning of bearing cap and axle housing D.
This bearing cap is the bearing cap of differential mechanism, does not show in the drawings.Wherein, bearing cap is bolted, and this bolt is the bolt of flanged of bolt head, and then cancels pad use, improves the degree easy for installation of bearing cap.
Also can on bearing cap, be provided with multiple positioning grooves, its concentric circle along bearing cap is uniformly distributed; On axle housing D, be provided with the positioning boss suitable with positioning groove.In this no longer detailed introduction and all within protection domain.
Also can position bearing cap and axle housing D by another kind of orientation type.As shown in figure 14, axle housing D is provided with bearing cap away from a side of speed reducer, is symmetrically arranged with the first plane of orientation on bearing cap, is provided with the second plane of orientation matching with the first plane of orientation on axle housing D.Wherein, the second plane of orientation D4 is arranged on the positioning spigot annulus D2 that axle housing D matches with bearing cap; The second plane of orientation is arranged along the length direction of axle housing D.To improve the resistance to deformation effect of bearing cap along the length direction of axle housing D.
The both sides of differential mechanism are provided with mounting flange, by mounting flange and being connected of transmission shaft driving differential gear A2 to rotate and then realize differential drive.In order further to reduce noise, the attachment hole of mounting flange and transmission shaft is tapped hole, and then has reduced the gap between bolt and attachment hole, and then reaches noise reduction.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and other embodiments' difference, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to these embodiments' multiple amendment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (15)
1. a speed reducer, comprise: casing (C), be arranged at the driving gear shaft (B) in described casing (C) and be arranged at the differential mechanism (A) on casing (C), the driven gear (A10) of described differential mechanism (A) engages with the driving gear of described driving gear shaft (B);
It is characterized in that, described driven gear (A10) is Equidep gear with described driving gear.
2. speed reducer as claimed in claim 1, is characterized in that, described differential mechanism (A) comprises poor shell and is arranged at the turning gear wheels in described poor shell;
The poor cap (A9) that described poor shell comprises poor shell body (A8) and is fixedly connected with described poor shell body (A8), described poor shell body (A8) and described poor cap (A9) are arranged along axial direction;
Described turning gear wheels comprise: planetary pinion (A1), and the quantity of described planetary pinion (A1) is three above and being circumferentially uniformly distributed along described poor shell; Planet axis assembly, described planet axis assembly comprises planet wheel shaft, the axis of described planet wheel shaft is in the same plane; Differential gear (A2), described differential gear (A2) engages with described planetary pinion (A1).
3. speed reducer as claimed in claim 1, is characterized in that, the quantity of described planetary pinion (A1) is four;
Described planet axis assembly also comprises support (A5), and described planet wheel shaft is arranged on described support (A5);
Described planet wheel shaft comprises a first row spider gear shaft (A3) and two the second planet wheel shafts (A4), described support (A5) is arranged in the middle of described the first row spider gear shaft (A3), two described the second planet wheel shafts (A4) are symmetricly set in the both sides of described the first row spider gear shaft (A3), and the axis of described the second planet wheel shaft (A4) is vertical with the axis of described the first row spider gear shaft (A3).
4. speed reducer as claimed in claim 3, is characterized in that, is provided with the flat position of oil duct (a) on described planet wheel shaft.
5. speed reducer as claimed in claim 1, is characterized in that, is provided with the fixed via for fixing described planet wheel shaft on described poor shell body (A8), and the end of described planet wheel shaft is higher than the outer surface of described fixed via;
The inner ring of driven gear and the end of described planet wheel shaft that on described speed reducer, are sheathed on described poor shell outer wall offset.
6. speed reducer as claimed in claim 5, is characterized in that, described poor shell body (A8) is fixed by bolt from described driven gear to described poor shell that fix with described poor cap (A2).
7. speed reducer as claimed in claim 1, is characterized in that, described poor shell body (A8) is along being circumferentially evenly equipped with multiple oil inlet holes (A81).
8. speed reducer as claimed in claim 1, is characterized in that, described poor shell body (A8) is located by seam with described poor cap (A2).
9. speed reducer as claimed in claim 1, is characterized in that, described planetary pinion (A1) is arranged with the spherical pad (A6) of nitrocarburizing processing away from one end of tooth; Described differential gear (A2) is arranged with the semiaxis pad (A7) of nitrocarburizing processing away from one end of tooth.
10. speed reducer as claimed in claim 1, is characterized in that, the bearing support bottom surface of described casing (C) is provided with bottom stiffening rib (C1); The quantity of described bottom stiffening rib (C1) is multiple and is divergent shape setting.
11. 1 kinds of automobiles, comprise axle housing (D) and are installed on the speed reducer on described axle housing (D), it is characterized in that, described speed reducer is the speed reducer as described in claim 1-10 any one.
12. automobiles as claimed in claim 11, it is characterized in that, bearing support (C3) arranged outside of the casing (C) of described speed reducer has positioning convex (C2), is provided with the locating slot (D1) matching with described positioning convex (C2) on described axle housing (D).
13. automobiles as claimed in claim 11, it is characterized in that, described axle housing (D) is provided with bearing cap away from a side of described speed reducer, is provided with the positioning spigot annulus (D2) matching with described bearing cap on described axle housing (D);
On described bearing cap, be provided with multiple positioning boss, its concentric circle along described bearing cap is uniformly distributed; On described axle housing (D), be provided with the positioning groove suitable with described positioning boss (D3); Or, on described bearing cap, being provided with multiple positioning grooves, its concentric circle along described bearing cap is uniformly distributed; On described axle housing (D), be provided with the positioning boss suitable with described positioning groove.
14. automobiles as claimed in claim 11, it is characterized in that, described axle housing (D) is provided with bearing cap away from a side of described speed reducer, on described bearing cap, be symmetrically arranged with the first plane of orientation, on described axle housing (D), be provided with the second plane of orientation (D4) matching with described the first plane of orientation;
Described the second plane of orientation is arranged along the length direction of described axle housing (D).
15. automobiles as described in claim 13 and 14, is characterized in that, the arranged outside of described bearing cap has stiffening rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410241709.0A CN104033561B (en) | 2014-06-03 | 2014-06-03 | Automobile and its reductor |
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| CN104033561B CN104033561B (en) | 2017-12-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060079370A1 (en) * | 2004-10-13 | 2006-04-13 | Toyoda Koki Kabushiki Kaisha | Differential device and drive power transmission unit using the same |
| CN2833237Y (en) * | 2005-03-28 | 2006-11-01 | 张以都 | Transmission device for controllable starting and stepless speed regulating |
| JP2007032828A (en) * | 2005-07-27 | 2007-02-08 | Yoshinori Hori | Differential multi-stage planetary transmission gear train |
| CN203418979U (en) * | 2013-06-19 | 2014-02-05 | 山东蓬翔汽车有限公司 | Double reduction communication driving axle assembly |
| CN203926666U (en) * | 2014-06-03 | 2014-11-05 | 柳州五菱汽车有限责任公司 | Automobile and speed reducer thereof |
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2014
- 2014-06-03 CN CN201410241709.0A patent/CN104033561B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060079370A1 (en) * | 2004-10-13 | 2006-04-13 | Toyoda Koki Kabushiki Kaisha | Differential device and drive power transmission unit using the same |
| CN2833237Y (en) * | 2005-03-28 | 2006-11-01 | 张以都 | Transmission device for controllable starting and stepless speed regulating |
| JP2007032828A (en) * | 2005-07-27 | 2007-02-08 | Yoshinori Hori | Differential multi-stage planetary transmission gear train |
| CN203418979U (en) * | 2013-06-19 | 2014-02-05 | 山东蓬翔汽车有限公司 | Double reduction communication driving axle assembly |
| CN203926666U (en) * | 2014-06-03 | 2014-11-05 | 柳州五菱汽车有限责任公司 | Automobile and speed reducer thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033561B (en) | 2017-12-19 |
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Address after: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Applicant after: Guangxi company limited of automobile group Applicant after: Liuzhou Wuling Automobile Industry Co., Ltd. Address before: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Applicant before: Liuzhou Wuling Motors Co., Ltd. Applicant before: Liuzhou Wuling Automobile Industry Co., Ltd. |
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Effective date of registration: 20180522 Address after: No. 19, Longxing Town, Chongqing City, Yubei District, Chongqing City, 400000 Patentee after: Chongqing Zhuo Tong Automobile Industry Co., Ltd. Address before: No. 18, Hexi Road, Liuzhou, the Guangxi Zhuang Autonomous Region, the Guangxi Zhuang Autonomous Region Co-patentee before: Liuzhou Wuling Automobile Industry Co., Ltd. Patentee before: Guangxi company limited of automobile group |
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