Differential assembly and vehicle

CN224693903UActive Publication Date: 2026-08-28ZHEJIANG GEELY HLDG GRP CO LTD +1
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Patent Information

Application Number
CN202621102927.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-07-21
Publication Date
2026-08-28
Estimated Expiration
2036-07-21

AI Technical Summary

Technical Problem

[0003]本实用新型提供了一种传动组件和车辆,以解决现有技术中驱动半轴和差速壳体之间可能会相对窜动,导致驱动半轴和差速壳体之间的密封可靠性较差的问题

Benefits of technology

[0005]有益效果:通过将密封件安装于半轴齿轮的轮轴部,由于半轴齿轮和差速壳体的相对位置固定,轮轴部和差速壳体之间不会相对窜动,因此能够提高密封件对轮轴部和差速壳体的间隙密封的可靠性,密封件能够有效防止差速组件内部的油液溢出,以及防止尘土等杂质和液体进入到差速壳体内。另外,防尘盖和密封件之间抵接设置,防尘盖和密封件之间也形成了密封结构,并且,防尘盖也套设于轮轴部,防尘盖和密封件之间不会出现相对位移,稳定性好,有利于提高防尘盖和密封件之间密封的可靠性,防尘盖能够阻止大体积的杂质划伤密封件,避免差速组件内的油液泄漏。这样,密封件、防尘盖、半轴齿轮和差速壳体的相互配合,不仅能够防止沙子等杂质进入到差速组件内,而且能够有效地防止水等液体流入到差速组件内,甚至差速组件的防水等级可以达到IP68级,使车辆在动力总成浸入水中时保持正常工作,且降低水浸入到差速组件内的概率,以满足车辆在水中行驶的需求,因此车辆每次浮水后,无需单独检查以及更换差速组件内的油液,有效地降低了维修成本。将防尘盖从轮轴部上拆卸后,即可将密封件从轮轴部上拆卸,再将新的密封件安装到轮轴部上,实现对于密封件的更换,最后再将防尘盖重新安装到轮轴部上,保证防尘盖与密封件抵接,密封件的更换方便,降低密封件的维护难度,提高维护效率,进而降低维护成本,提高客户满意度。防尘盖安装到轮轴部,以及防尘盖从轮轴部拆卸时,防尘盖造成轮轴部的划痕主要在第二轴段上,将密封件安装到轮轴部的过程中,由于密封件的内直径大于第二轴段的外直径,因此密封件在第二轴段移动时与第二轴段之间不会产生摩擦损耗或者摩擦损耗极小,能够减少密封件在安装过程中产生摩擦损耗,不仅能够保证密封件安装后的密封可靠性,而且能够延长密封件的使用寿命。

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Abstract

The utility model relates to sealing technical field discloses a differential assembly and vehicle, include: differential casing, are equipped with via hole, half axle gear, including gear part and axle portion, gear part is located the outer peripheral surface of axle portion, gear part is located in differential casing, axle portion is equipped with in via hole, axle portion includes first axle segment and second axle segment, first axle segment and second axle segment along the axial arrangement of axle portion, the outer diameter of first axle segment is greater than the outer diameter of second axle segment, sealing element, abuts between the inner wall of via hole and the outer peripheral surface of axle portion, sealing element is set in first axle segment, dust cover, set in second axle segment, dust cover with axle portion is detachably connected, dust cover abuts in sealing element far from gear part one side, the utility model embodiment's differential assembly has good waterproof performance and dustproof performance.
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