CN219692172U - Simple anti-slip differential assembly - Google Patents
Simple anti-slip differential assembly Download PDFInfo
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- CN219692172U CN219692172U CN202321008755.7U CN202321008755U CN219692172U CN 219692172 U CN219692172 U CN 219692172U CN 202321008755 U CN202321008755 U CN 202321008755U CN 219692172 U CN219692172 U CN 219692172U
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- sun gear
- differential
- spline
- friction plate
- fluted disc
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- 230000000712 assembly Effects 0.000 abstract description 7
- 238000000429 assembly Methods 0.000 abstract description 7
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- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a simple anti-slip differential assembly, which comprises a differential shell, a friction plate assembly, a first sun gear, a second sun gear, a planetary gear assembly and a fluted disc, wherein the fluted disc comprises a concave groove body and a pressing ring, an internal spline is arranged at the axial center position of the concave groove body, a circle of empty cutter groove and an external spline are arranged at the outer side of the concave groove body, and the pressing ring is arranged at the opening end of the concave groove body; the second sun gear is arranged in the fluted disc, an external spline is arranged on the outer side of a transmission shaft of the second sun gear, an internal spline is arranged on the inner side of the transmission shaft of the second sun gear, the transmission shaft is connected with a concave groove body key of the fluted disc through the external spline, and the transmission shaft is radially fixed with an external spline of the axle half shaft through the internal spline; the friction plate component is connected with the concave groove body key of the fluted disc, and the pressing ring is used for pushing the whole end face of the friction plate component. Only one group of friction plate assemblies are arranged in the differential mechanism assembly, so that the differential mechanism structure is simplified, the space occupation ratio is small, the cost is low, and the anti-skid effect is ensured.
Description
Technical Field
The utility model relates to the technical field of differentials, in particular to a simple anti-slip differential assembly.
Background
When the vehicle without the differential anti-skid device encounters poor road conditions, uphill roads and easy-to-slip roads, the torque output by the vehicle engine can fully transmit the driving force to one end with smaller friction force of wheels after the transmission of the differential, so that the vehicle generates a phenomenon that one side tire slips and the other side tire has no driving force, and the vehicle is difficult or cannot get rid of poverty. To solve this problem, anti-slip differentials have been developed and used. The existing mechanical anti-slip differential is a friction plate type anti-slip differential, the differential has a differential anti-slip function, torque output by a vehicle engine can be evenly distributed to left and right two wheels through a friction plate assembly, even if the wheels with small friction force slip, the wheels on the other side can not lose driving force, and the vehicle is easy to get rid of poverty and go forward continuously. However, the existing first-level anti-slip friction plate type differential is provided with friction plate assemblies at the left end and the right end of the differential, and the differential has large space occupation ratio and high cost due to the design; in addition, the prior differential mechanism has limited contact area between the friction plate assembly pushing device and the friction plate due to unreasonable structural design, and has general anti-skid effect.
Disclosure of Invention
The utility model aims to provide a simple anti-slip differential assembly, wherein only one group of friction plate assemblies are arranged in the differential assembly, a fluted disc is additionally arranged between the friction plate assemblies and a sun gear, and the contact area of a pushing device (the fluted disc) and the friction plate assemblies is ensured through the special design of a fluted disc structure, so that the friction plate assemblies and a differential shell are better combined, the differential structure is simplified, the space occupation ratio is small, the cost is low, and the anti-slip effect is ensured.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the simple anti-slip differential assembly comprises a differential shell, a friction plate assembly, a first sun gear, a second sun gear and a planetary gear assembly, wherein the friction plate assembly, the first sun gear, the second sun gear and the planetary gear assembly are arranged in an inner cavity of the differential shell; the improvement is that the inner cavity of the differential case is also provided with a fluted disc, the fluted disc comprises a concave groove body and a pressing ring, an internal spline is arranged at the axle center position of the concave groove body, a circle of empty cutter grooves and external splines are arranged at the outer side of the concave groove body, and the pressing ring is arranged at the opening end of the concave groove body; the second sun gear is arranged in the fluted disc, an external spline is arranged on the outer side of a transmission shaft of the second sun gear, an internal spline is arranged on the inner side of the transmission shaft of the second sun gear, the second sun gear is connected with a concave groove body key of the fluted disc through the external spline, radial fixation is achieved, the second sun gear axially moves along the spline, and the second sun gear is radially fixed with the external spline of the axle half shaft through the internal spline; the friction plate assembly is connected with the concave groove body key of the fluted disc to realize radial fixation and axially move along the spline, and the pressing ring is used for pushing the whole end face of the friction plate assembly.
As the preferable mode of the utility model, the outer part of the differential case is fixed with the main basin reducing gear of the automobile, at least two sliding grooves are uniformly distributed at intervals along the axial direction at one end of the inner cavity of the differential case, and the friction plate component is radially fixed with the sliding grooves and axially moves along the sliding grooves.
As the preferable choice of the utility model, the said friction plate assembly includes stator, rotor, stator, rotor are set up alternately, the external diameter of the said stator equipartition sets up at least two first bosses, the said first boss is fixed with slipping the trough of the differential mechanism shell cavity radially, and move axially along slipping the trough; an internal spline is arranged at the axial center of the moving plate, and the moving plate is connected with a concave groove body key of the fluted disc.
Preferably, an inner spline is arranged on the inner side of the transmission shaft of the first sun gear, and the inner spline is radially fixed with an outer spline of the axle half shaft.
As the preferable mode of the utility model, the center of the differential shell is radially and uniformly provided with four holes, and the planetary gear assembly comprises four planetary gears, a long shaft, two short shafts and a fixed support; the four planetary gears are radially fixed in four holes which are radially distributed in the center of the fixed support and the differential shell by a long shaft and two short shafts, and are axially fixed by cylindrical pins for fixing the long shaft and the short shafts, and the four planetary gears are meshed with the first sun gear and the second sun gear.
As the preferable mode of the utility model, four sliding grooves are uniformly distributed in the inner cavity of the differential case along the axial direction at intervals, and the sliding grooves are arc-shaped grooves or rectangular grooves; four first bosses are uniformly distributed on the outer diameter of the stator of the friction plate assembly, and the first bosses are first arc-shaped bosses or first rectangular bosses.
As the preferable mode of the utility model, the concave groove body and the pressing ring are of an integrated structure.
As the preferable mode of the utility model, the upper surface, the lower surface, the left surface and the right surface of the fixed bracket are respectively provided with the mounting holes, the two ends of the long shaft after passing through the mounting holes of the upper surface and the lower surface are fixed on the differential shell, one ends of the two short shafts are respectively fixed on the mounting holes of the left surface and the right surface of the fixed bracket, and the other ends of the two short shafts are fixed on the differential shell.
The utility model has the advantages and beneficial effects that:
1. the differential assembly provided by the utility model only needs one group of friction plate assemblies, has the advantages of simple structure, high reliability, small space occupation ratio and low cost, and is beneficial to the lightweight design of vehicles.
2. According to the differential mechanism assembly provided by the utility model, the fluted disc is additionally arranged between the friction plate assembly and the sun gear, and the special design of the fluted disc structure ensures the contact area of the pushing device (fluted disc) and the friction plate assembly, so that the friction plate assembly and the differential mechanism shell are combined better; in addition, after the moving plate of the friction plate assembly compresses the fixed plate, the fixed plate of the friction plate assembly is radially fixed with the differential case, and the moving plate is radially fixed with the fluted disc, so that the friction plate assembly, the fluted disc and the sun wheel can be forced to synchronously operate with the differential case, and the anti-skid effect is ensured through the two aspects.
3. The differential mechanism assembly provided by the utility model fixes the planetary gears through the long shaft, the two short shafts and the fixing support, and has good structural stability, so that the meshing effect of the planetary gears and the sun gears is good, and the faults of the differential mechanism are reduced.
4. According to the differential mechanism assembly provided by the utility model, the empty cutter groove is formed in the fluted disc, and the design of the empty cutter groove is required by a process, so that the processing of external splines is facilitated.
5. The external spline of the sun gear of the differential assembly is connected with the fluted disc, and the external spline of the axle half shaft is only connected with the internal spline of the sun gear (not connected with the fluted disc), so that the internal spline connected with the axle half shaft can be arranged for a long time, and the connection strength can be improved greatly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the internal structure of a differential assembly of the present utility model;
FIG. 2 is a schematic view of a planetary gear assembly of the present utility model;
FIG. 3 is a schematic view of a stator of the present utility model;
reference numerals: differential case 1, friction plate assembly 2, first sun gear 3, second sun gear 4, planetary gear assembly 5, fluted disc 6, cylindric lock 7, stator 21, first convex boss 211, planetary gear 51, major axis 52, minor axis 53, fixed support 54, indent cell 61, clamping ring 62.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the simple anti-slip differential assembly provided in this embodiment includes a differential case 1, a friction plate assembly 2 disposed in an inner cavity of the differential case, a first sun gear 3, a second sun gear 4, and a planetary gear assembly 5, wherein the friction plate assembly 3 is disposed in the differential case 2 at an end near an end cover, and the first sun gear 3 and the second sun gear 4 are engaged with the planetary gear assembly 5; the improvement is that the inner cavity of the differential case 1 is also provided with a fluted disc 6, the fluted disc 6 comprises a concave groove body 61 and a pressing ring 62, an internal spline is arranged at the axle center position of the concave groove body 61, a circle of empty cutter grooves and external splines are arranged at the outer side of the concave groove body, and the pressing ring 62 is arranged at the opening end of the concave groove body 61; the second sun gear 4 is arranged in the fluted disc 6, an external spline is arranged on the outer side of a transmission shaft of the second sun gear 4, an internal spline is arranged on the inner side of the transmission shaft, the transmission shaft is connected with a concave groove body 61 of the fluted disc through the external spline in a key manner, radial fixation is realized, the transmission shaft moves along the axial direction of the spline, and the transmission shaft is radially fixed with the external spline of the axle half shaft through the internal spline; the friction plate assembly 2 is in key connection with the concave groove body 61 of the fluted disc, radial fixation is achieved, the friction plate assembly moves axially along the spline, and the pressing ring 62 is used for pushing the whole end face of the friction plate assembly 2.
Further, in this embodiment, the outside of differential mechanism shell 1 is fixed with the car owner and subtracts basin gear, and the inner chamber of differential mechanism shell is being close to the one end of end cover, along the axial interval equipartition setting at least two grooves that slide, friction disc subassembly 2 and the groove that slide radially fixed to follow the groove axial that slides.
Further, in this embodiment, the friction plate assembly 2 includes a stator 21, a rotor, the stator and the rotor are alternately arranged, at least two first bosses are uniformly distributed on the outer diameter of the stator, and the first bosses are radially fixed with a sliding groove in the inner cavity of the differential case and axially move along the sliding groove; the axle center position of the moving plate is provided with an internal spline, and the moving plate is connected with a concave groove body 61 of the fluted disc in a key way.
It is necessary to explain that: in this embodiment, the friction plate assembly 2 may be an existing friction plate, and the friction plate is not limited in the present utility model.
Further, in this embodiment, an internal spline is disposed on the inner side of the transmission shaft of the first sun gear 3, and is radially fixed with an external spline of the axle half shaft through the internal spline.
Further, in this embodiment, the concave groove 61 and the pressing ring 62 are integrally formed.
In this embodiment, as shown in fig. 3, four sliding grooves are uniformly distributed in the inner cavity of the differential case 1 along the axial direction at intervals, and the sliding grooves are arc-shaped grooves or rectangular grooves; four first arc-shaped bosses 211 or first rectangular bosses are uniformly distributed on the outer diameter of the stator 21 of the friction plate assembly.
In this embodiment, the shape of the first boss of the outer diameter of the stator 21 is not limited, and may be rectangular or circular arc, so as to ensure that the shape of the first boss matches with the shape of the sliding groove. When the first boss is a first arc-shaped boss 211, the first boss is radially fixed with an arc-shaped groove of the inner cavity of the differential case and axially moves along the arc-shaped groove; when the first boss is a first rectangular boss, the first boss is radially fixed with a rectangular groove of the inner cavity of the differential case and moves along the axial direction of the rectangular groove.
As shown in fig. 2, four holes are radially and uniformly distributed in the center of the differential case, and the planetary gear assembly 5 comprises four planetary gears 51, a long shaft 52, two short shafts 53 and a fixed support 54; the four planetary gears 21 are radially fixed in four holes radially uniformly distributed in the center of the differential case 1 and in the fixed bracket 51 by a long shaft 52 and two short shafts 53, and are axially fixed by cylindrical pins 7 for fixing the long shaft and the short shafts, and the four planetary gears 51 are meshed with the first sun gear 3 and the second sun gear 4.
Further, in this embodiment, the upper, lower, left and right surfaces of the fixing support 54 are provided with mounting holes, the long shaft 52 passes through the mounting holes of the upper and lower surfaces of the fixing support 54, and then both ends thereof are fixed to the differential case 1, one ends of the two short shafts 53 are respectively mounted on the mounting holes of the left and right surfaces of the fixing support 54, and the other ends thereof are fixed to the differential case 1.
When the vehicle runs normally and linearly, the main basin reducing gear of the automobile drives the differential case 1 to synchronously rotate, and the long shaft 52 and the short shaft 53 fixed in the differential case 1 drive the planetary gear 51, drive the sun gear and drive the axle half shaft to synchronously rotate, so that all parts in the differential case do not have relative motion.
When the vehicle turns, the first sun gear 3 and the second sun gear 4 rotate in opposite directions through the four planetary gears 51 due to unequal arc lengths of the inner wheel and the outer wheel, so that a rotating speed difference is formed, differential work is completed, and the vehicle can easily complete turning.
When the vehicle runs on the road with poor road condition, an uphill road and easy occurrence of skidding, if the situation of skidding of tires occurs, the wheel at one end with smaller friction force can generate a rotation speed difference with the wheel at the other end, namely, the first sun gear 3 and the second sun gear 4 are mutually driven by the planetary gears 51, when the sun gear and the planetary gears are driven, tangential force and outward thrust force can be generated, the sun gear can be pushed in opposite directions by the thrust force at the moment, the sun gear pushes the fluted disc 6 and the fluted disc to push the friction disc assembly 2, so that the fluted disc 6 is attached to the differential case 1 through the friction disc assembly 2, the sun gear and the differential case 1 are forced to synchronously rotate, the rotation speed difference between the two wheels of the vehicle is eliminated, namely, the wheel at one end with larger friction force can not lose driving force, the vehicle is easy to get rid of being stranded and go forward, the contact area of the pushing device (fluted disc) and the differential case is ensured due to the structural design of the fluted disc 6, and the anti-skidding effect is better.
The foregoing is a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present utility model, and it is intended to cover the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (8)
1. The simple anti-slip differential assembly comprises a differential shell, a friction plate assembly, a first sun gear, a second sun gear and a planetary gear assembly, wherein the friction plate assembly, the first sun gear, the second sun gear and the planetary gear assembly are arranged in an inner cavity of the differential shell; the inner cavity of the differential case is also provided with a fluted disc, the fluted disc comprises a concave groove body and a pressing ring, an internal spline is arranged at the axle center position of the concave groove body, a circle of empty cutter grooves and external splines are arranged at the outer side of the concave groove body, and the pressing ring is arranged at the opening end of the concave groove body; the second sun gear is arranged in the fluted disc, an external spline is arranged on the outer side of a transmission shaft of the second sun gear, an internal spline is arranged on the inner side of the transmission shaft of the second sun gear, the second sun gear is connected with a concave groove body key of the fluted disc through the external spline, radial fixation is achieved, the second sun gear axially moves along the spline, and the second sun gear is radially fixed with the external spline of the axle half shaft through the internal spline; the friction plate assembly is connected with the concave groove body key of the fluted disc to realize radial fixation and axially move along the spline, and the pressing ring is used for pushing the whole end face of the friction plate assembly.
2. The simple anti-slip differential assembly according to claim 1, wherein the outer portion of the differential housing is fixed to the main basin-reducing gear of the automobile, at least two sliding grooves are uniformly distributed in the inner cavity of the differential housing at an end close to the end cover at intervals along the axial direction, and the friction plate assembly is radially fixed to the sliding grooves and axially moves along the sliding grooves.
3. The simple anti-slip differential assembly according to claim 1, wherein the friction plate assembly comprises a stator, a rotor, the stator and the rotor are alternately arranged, at least two first bosses are uniformly distributed on the outer diameter of the stator, and the first bosses are radially fixed with a sliding groove of an inner cavity of the differential case and axially move along the sliding groove; an internal spline is arranged at the axial center of the moving plate, and the moving plate is connected with a concave groove body key of the fluted disc.
4. The simplified anti-slip differential assembly according to claim 1, wherein an inner spline is provided on an inner side of a drive shaft of the first sun gear, and is radially fixed with an outer spline of an axle half shaft by the inner spline.
5. The simplified anti-slip differential assembly according to claim 1, wherein the center of the differential housing is radially and evenly provided with four holes, and the planetary gear assembly comprises four planetary gears, a long shaft, two short shafts and a fixed support; the four planetary gears are radially fixed in four holes which are radially distributed in the center of the fixed support and the differential shell by a long shaft and two short shafts, and are axially fixed by cylindrical pins for fixing the long shaft and the short shafts, and the four planetary gears are meshed with the first sun gear and the second sun gear.
6. The simple anti-slip differential assembly according to claim 1, wherein the inner cavity of the differential case is uniformly provided with four sliding grooves along the axial direction at intervals, and the sliding grooves are arc-shaped grooves or rectangular grooves; four first bosses are uniformly distributed on the outer diameter of the stator of the friction plate assembly, and the first bosses are first arc-shaped bosses or first rectangular bosses.
7. The integrated non-slip differential assembly according to claim 1, wherein said recessed groove is of unitary construction with a clamping ring.
8. The simple anti-slip differential assembly according to claim 5, wherein the fixing bracket has mounting holes on the upper, lower, left and right surfaces, the long shaft is fixed on the differential case at two ends after passing through the mounting holes on the upper and lower surfaces, one ends of the two short shafts are fixed on the mounting holes on the left and right surfaces of the fixing bracket, respectively, and the other ends are fixed on the differential case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321008755.7U CN219692172U (en) | 2023-04-28 | 2023-04-28 | Simple anti-slip differential assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321008755.7U CN219692172U (en) | 2023-04-28 | 2023-04-28 | Simple anti-slip differential assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692172U true CN219692172U (en) | 2023-09-15 |
Family
ID=87937707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321008755.7U Active CN219692172U (en) | 2023-04-28 | 2023-04-28 | Simple anti-slip differential assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692172U (en) |
-
2023
- 2023-04-28 CN CN202321008755.7U patent/CN219692172U/en active Active
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