CN217874045U - Differential mechanism assembly structure between wheels - Google Patents
Differential mechanism assembly structure between wheels Download PDFInfo
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- CN217874045U CN217874045U CN202222185193.5U CN202222185193U CN217874045U CN 217874045 U CN217874045 U CN 217874045U CN 202222185193 U CN202222185193 U CN 202222185193U CN 217874045 U CN217874045 U CN 217874045U
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- lubricating bearing
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Abstract
The utility model provides an inter-wheel differential mechanism assembly structure, including left differential mechanism shell and right differential mechanism shell, be connected with four planet wheels through the cross axle in the inner chamber, four planet wheels mesh with the differential side gear who establishes in both sides simultaneously, lie in left side differential side gear through self-lubricating bearing and left differential mechanism shell looks butt, lie in right side differential side gear through self-lubricating bearing and right differential mechanism shell looks butt, be equipped with annular end face groove on left differential mechanism shell, the right differential mechanism shell terminal surface corresponding with self-lubricating bearing respectively, be equipped with convex annular wave spring in the annular end face groove; the outer end of the cross shaft is provided with a wear-resistant shaft sleeve, and the planet wheel is connected with the surface of the wear-resistant shaft sleeve through a self-lubricating bearing; a self-lubricating bearing is arranged between the planet wheel and the cross shaft; the left differential case and the right differential case are fixed through welding. The utility model discloses a set up wave spring and guarantee that differential side gear and planet wheel have suitable pretightning force all the time, eliminate the clearance between the gear, prevent to have impact vibration, increase of service life.
Description
Technical Field
The utility model relates to an automobile parts technical field, concretely relates to differential mechanism assembly structure between wheels.
Background
At present, most of differential assemblies in the market are connected by bolts coated with locking glue, and internal rotating parts are in sliding friction fit.
In the process of implementing the present invention, the inventor finds that the existing structure has the following defects:
firstly, the driven reduction gear, the left differential case and the right differential case are all connected by bolts, and accumulated errors exist, so that bearings of the left differential case and the right differential case are not coaxial, the driven reduction gear rotates to swing greatly and is unbalanced with a tooth side gap of a driving gear, the noise is large after the rotation, and the tooth beating phenomenon often occurs;
secondly, although the locking glue is coated, the locking glue is affected by expansion with heat and contraction with cold, long-term vibration and impact, and the loosening phenomenon can occur; meanwhile, the thread can be damaged during disassembly, so that the parts of the differential case are scrapped, and the market payment is large;
and thirdly, the rotating parts are in sliding friction fit, the half axle gear, the planet wheel, the cross shaft, the gasket and the differential shell are in surface contact and sliding friction, oil is not easy to enter, namely dry friction, and in the maintenance period, the half axle gear, the planet wheel, the gasket, the cross shaft and the differential shell are damaged due to abrasion, so that serious abnormal sound and vibration are caused, a large amount of heat quality problems are generated, and the function of the differential assembly is directly influenced.
Disclosure of Invention
In order to solve the technical problem that current differential mechanism assembly exists, the utility model provides an inter-wheel differential mechanism assembly structure can eliminate the abnormal sound, prevents that the wearing and tearing of gear and other part contact surfaces from producing vibrations increase of service life.
Therefore, the technical scheme of the utility model is that: the utility model provides an inter-wheel differential mechanism assembly structure, is connected with four planet wheels through the cross axle in the inner chamber that closes including left differential mechanism shell and the right differential mechanism shell of taking passive reduction gear, left differential mechanism shell and right differential mechanism shell enclose, set up the cross axle mounting hole that corresponds on the conch wall, four planet wheels mesh its characterized in that with the axle shaft gear who establishes both sides simultaneously: the left differential shell and the driven reduction gear are of an integrated forging structure,
the half axle gear on the left side is abutted with the left differential shell through a self-lubricating bearing, the half axle gear on the right side is abutted with the right differential shell through a self-lubricating bearing, the end faces of the left differential shell and the right differential shell corresponding to the self-lubricating bearing are respectively provided with an annular end face groove, and a convex annular wave spring is arranged in the annular end face groove;
the outer end of the cross shaft is arranged in the cross shaft hole through a wear-resistant shaft sleeve, and the planet wheel is abutted with the wear-resistant shaft sleeve through a self-lubricating bearing; a self-lubricating bearing is coaxially arranged between the planet wheel and the cross shaft;
the left differential case and the right differential case are fixed through welding.
Preferably, the method comprises the following steps: wave spring is cyclic annular plate body, and cyclic annular plate body is crest and trough structure that a plurality of was crisscross in succession set up, passes through the cambered surface transition between crest and the trough, wherein: all wave crests are located on the same plane, all wave troughs are located on the same plane, and the two planes are parallel. The purpose is to ensure that the half axle gear and the planet gear always have proper pretightening force, eliminate the clearance between the gears and prevent impact vibration.
The technical scheme is further improved as follows: the planet gear is connected with the wear-resistant shaft sleeve in a butting mode through the self-lubricating bearing, and plane contact is formed between the planet gear and the self-lubricating bearing and between the self-lubricating bearing and the wear-resistant shaft sleeve. The deformation that probably takes place when left differential case and right differential case pass through welded fastening can effectively be prevented through face contact.
The technical scheme is further improved as follows: the wear-resistant shaft sleeve is connected with the cross shaft mounting hole and the cross shaft in an interference fit mode. The purpose is to prevent the rotation of the wear-resistant shaft sleeve, increase the rigidity of the cross shaft and reduce the friction force of the planet wheel acting on the cross shaft.
The technical scheme is further improved as follows: the welding seam department of left differential mechanism shell and right differential mechanism shell has the structure of mutual interlock for annular taper groove, tank bottom, wherein along being equipped with the structure that the bellying formed mutual interlock in one side was followed in being equipped with recess, the opposite side. The purpose is to guarantee the fixed connection intensity.
Preferably, the self-lubricating bearing is a teflon tape self-lubricating bearing. Has high bearing capacity, high wear resistance, high corrosion resistance and high lubricating performance.
Has the advantages that: compared with the prior art, the utility model has the advantages of: the left differential mechanism shell and the driven reduction gear are of an integrated forging structure, so that the left differential mechanism and the driven reduction gear are conveniently used as reference positioning, the periphery of the right differential mechanism shell after welding and fixing is processed, and the coaxial line of the left and right differential mechanism shells is ensured; the original gasket is cancelled, and the wave spring is arranged to be abutted against the self-lubricating bearing, so that the half axle gear and the planet gear always have proper pre-tightening force, the gap between the gears is eliminated, the impact vibration is prevented, and the service life is prolonged; a wear-resistant shaft sleeve is arranged between the outer end of the cross shaft and the cross shaft mounting hole and is used for bearing partial pressure on the cross shaft, a self-lubricating bearing is coaxially arranged between the planet wheel and the cross shaft, friction between the planet wheel and the cross shaft is reduced, and therefore the service life of parts is prolonged, and meanwhile, the differential assembly is welded into an integrated differential assembly to be a product free of disassembly and maintenance;
the utility model discloses the cost of manufacture of assembly is low, and differential mechanism long service life has eliminated vibrations and abnormal sound, has reduced the after-sale claim cost.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a structural view of the left and right differential cases of the present invention.
Fig. 4 is a structural view of the cross of the present invention.
Fig. 5 is a structural view of the side gear of the present invention.
Fig. 6 is a structural diagram of the planetary gear of the present invention.
Fig. 7 is a structural diagram of the wear-resistant shaft sleeve of the present invention.
Fig. 8 is a schematic view of the wave spring of the present invention, wherein:
(a) Is a perspective view; (b) is a top view; and (c) is a side view of (b).
Shown in the figure: 1. a left differential case; 2. a right differential case; 3. a cross shaft; 4. a planet wheel; 5. a half shaft gear; 61. A self-lubricating bearing; 7. a wave spring; 8. a wear-resistant shaft sleeve; 9. welding seams; 10. an annular end surface groove; 11. a passive reduction gear.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, but the embodiment should not be construed as limiting the present invention.
The utility model discloses as shown in fig. 1 to 8:
an inter-wheel differential assembly structure comprises a left differential case 1 and a right differential case 2 which are forged and integrally formed with a driven reduction gear 11, wherein four planet wheels 4 are connected in an inner cavity enclosed by the left differential case and the right differential case through cross shafts 3, the wall of the case is provided with corresponding cross shaft mounting holes, the four planet wheels are simultaneously meshed with half axle gears 5 arranged at two sides,
the half axle gear 5 on the left side is abutted with the left differential shell through a self-lubricating bearing 61 of a planar structure, the half axle gear on the right side is abutted with the right differential shell through a self-lubricating bearing 62 of a planar structure, the end faces of the left differential shell and the right differential shell corresponding to the self-lubricating bearings are respectively provided with an annular end face groove 10, and a convex annular wave spring 7 is arranged in the annular end face groove;
the outer end of the cross shaft is arranged in the cross shaft hole through a wear-resistant shaft sleeve 8, and the planet wheel is abutted with the wear-resistant shaft sleeve through a self-lubricating bearing 63 with a planar structure; a self-lubricating bearing 64 with a shaft sleeve structure is coaxially arranged between the planet wheel and the cross shaft;
the left differential case and the right differential case are fixed through welding.
The planet gear is connected with the wear-resistant shaft sleeve in a butting mode through the self-lubricating bearing, and plane contact is formed between the planet gear and the self-lubricating bearing and between the self-lubricating bearing and the wear-resistant shaft sleeve. The deformation that probably takes place when left differential case and right differential case pass through welded fastening can effectively be prevented through face contact.
The wear-resistant shaft sleeve 8 is connected with the cross shaft mounting hole and the cross shaft in an interference fit mode. The purpose is to prevent the rotation of the wear-resistant shaft sleeve, increase the rigidity of the cross shaft and reduce the friction force of the planet wheel acting on the cross shaft.
The welding seam 9 of the left differential case and the right differential case is an annular taper groove, the groove bottom is provided with a mutually meshed structure, the inner edge of one side is provided with a concave part, and the inner edge of the other side is provided with a convex part to form a mutually meshed structure. The purpose is to guarantee the fixed connection intensity.
The self-lubricating bearing adopts a PTFE soft belt self-lubricating bearing. Has high bearing capacity, high wear resistance, high corrosion resistance and high lubricating performance.
Those skilled in the art will appreciate that the detailed description is not provided herein in detail.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides an inter-wheel differential mechanism assembly structure, is connected with four planet wheels through the cross axle in the inner chamber that closes including left differential mechanism shell and the right differential mechanism shell of taking passive reduction gear, left differential mechanism shell and right differential mechanism shell enclose, set up the cross axle mounting hole that corresponds on the conch wall, four planet wheels mesh its characterized in that with the axle shaft gear who establishes both sides simultaneously: the left differential shell and the driven reduction gear are in an integral forging structure,
the half axle gear on the left side is abutted with the left differential shell through the self-lubricating bearing, the half axle gear on the right side is abutted with the right differential shell through the self-lubricating bearing, annular end surface grooves are respectively arranged on the end surfaces of the left differential shell and the right differential shell corresponding to the self-lubricating bearings, and a convex annular wave spring is arranged in each annular end surface groove;
the outer end of the cross shaft is arranged in the cross shaft hole through a wear-resistant shaft sleeve, and the planet wheel is abutted with the wear-resistant shaft sleeve through a self-lubricating bearing; a self-lubricating bearing is coaxially arranged between the planet wheel and the cross shaft;
the left differential case and the right differential case are fixed through welding.
2. The inter-wheel differential assembly structure according to claim 1, characterized in that: wave spring is cyclic annular plate body, and cyclic annular plate body is crest and trough structure that a plurality of was crisscross in succession set up, passes through the cambered surface transition between crest and the trough, wherein: all wave crests are located on the same plane, all wave troughs are located on the same plane, and the two planes are parallel.
3. The inter-wheel differential assembly structure according to claim 1 or 2, characterized in that: the planet gear is connected with the wear-resistant shaft sleeve in a butting mode through the self-lubricating bearing, and plane contact is formed between the planet gear and the self-lubricating bearing and between the self-lubricating bearing and the wear-resistant shaft sleeve.
4. The inter-wheel differential assembly structure according to claim 3, characterized in that: the wear-resistant shaft sleeve is connected with the cross shaft mounting hole and the cross shaft in an interference fit mode.
5. The differential assembly structure between wheels as claimed in claim 1, 2 or 4, wherein: the welding seam department of left differential mechanism shell and right differential mechanism shell has the structure of mutual interlock for annular taper groove, tank bottom, wherein along being equipped with the structure that the bellying formed mutual interlock in one side was followed in being equipped with recess, the opposite side.
6. The inter-wheel differential assembly structure according to claim 5, characterized in that: the self-lubricating bearing adopts a PTFE soft belt self-lubricating bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222185193.5U CN217874045U (en) | 2022-08-19 | 2022-08-19 | Differential mechanism assembly structure between wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222185193.5U CN217874045U (en) | 2022-08-19 | 2022-08-19 | Differential mechanism assembly structure between wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217874045U true CN217874045U (en) | 2022-11-22 |
Family
ID=84077302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222185193.5U Active CN217874045U (en) | 2022-08-19 | 2022-08-19 | Differential mechanism assembly structure between wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217874045U (en) |
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2022
- 2022-08-19 CN CN202222185193.5U patent/CN217874045U/en active Active
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