阅读说明：本技术 一种圆锥轮毂单元 (Conical hub unit ) 是由 刘金贵 沈冲冲 高项清 于 2021-02-03 设计创作，主要内容包括：本发明公开了一种圆锥轮毂单元,主要包括内圈、外圈、保持架、滚子、螺栓、引导圈和密封圈组件,外圈和内圈之间设有滚道,滚道内安装由保持架保持的滚子,构成轮毂轴承单元的双列滚道,外圈右端内径处压装引导圈,由引导圈和外圈共同形成装配引导结构；外圈右端外侧安装螺栓,外圈和内圈两端设有密封圈组件进行密封。本发明主要通过改变外圈装配引导外径的设计,将外圈引导端外径改成压入引导圈设计,解除了内圈和滚子组的尺寸限制,以此解决了第二代圆锥轮毂单元载荷能力偏低问题,提高轴承整体载荷能力；为轴承载荷能力的提升提供了空间,更大更多的滚子可以提供更高的动静载荷能力,从而提高轴承整体寿命能力,增加有效行车里程,降低产品售后质量风险,为企业节约成本。(The invention discloses a conical hub unit, which mainly comprises an inner ring, an outer ring, a retainer, rollers, bolts, a guide ring and a sealing ring assembly, wherein a roller path is arranged between the outer ring and the inner ring, the rollers retained by the retainer are arranged in the roller path to form a double-row roller path of a hub bearing unit, the guide ring is pressed at the inner diameter part of the right end of the outer ring, and an assembly guide structure is formed by the guide ring and the outer ring together; and a bolt is arranged on the outer side of the right end of the outer ring, and sealing ring assemblies are arranged at the two ends of the outer ring and the inner ring for sealing. The outer diameter of the leading end of the outer ring is changed into the design of the pressed-in guide ring by mainly changing the design of the outer ring assembly guide outer diameter, so that the size limitation of the inner ring and the roller group is removed, the problem that the second generation conical hub unit has low load capacity is solved, and the integral load capacity of the bearing is improved; space is provided for improving the load capacity of the bearing, and larger and more rollers can provide higher dynamic and static load capacity, so that the whole service life capacity of the bearing is improved, the effective driving mileage is increased, the after-sale quality risk of the product is reduced, and the cost of enterprises is saved.)

1. A conical hub unit characterized by: the wheel hub bearing mainly comprises an inner ring (1), an outer ring (2), a retainer (3), rollers (4), bolts (5), a guide ring (6) and a sealing ring assembly (7), wherein a roller path is arranged between the outer ring (2) and the inner ring (1), the rollers (4) retained by the retainer (3) are arranged in the roller path to form a double-row roller path of a wheel hub bearing unit, the guide ring (6) is pressed at the inner diameter of the right end of the outer ring (2), and an assembly guide structure is formed by the guide ring (6) and the outer ring (2) together; and a bolt (5) is arranged on the outer side of the right end of the outer ring (2), and sealing ring assemblies (7) are arranged at two ends of the outer ring (2) and the inner ring (1) for sealing.

2. A conical hub unit according to claim 1, wherein: the two rollers (4) are arranged in the roller paths of the outer ring (2) and the inner ring (1) in a splayed manner, and a retainer (3) is arranged in an included angle cavity at the joint between the two rollers (4).

3. A conical hub unit according to claim 1, wherein: the guide ring (6) is formed by connecting two hollow cylinders with different diameters, and one end of the guide ring is abutted against the inner diameter wall of the guide end of the outer ring (2).

Technical Field

The invention relates to the field of hubs, in particular to a conical hub unit.

Background

A conical hub unit is an automotive component that carries weight and provides precise guidance for the rotation of the hub. In the prior art, the second generation cone hub unit structure mainly includes: the inner ring 1, the outer ring 2, the retainer 3, the rollers 4, the bolts 5, the guide ring 6 and the seal ring component 7, wherein the outer ring 2 is designed with an assembly guide outer diameter 8, namely the outer ring 2 and the guide outer diameter are integrated. The right side inner ring and roller assembly is assembled from the side of the assembly guide outer diameter 8 during assembly, so the size of the assembly guide outer diameter 8 limits the size of the inner ring and roller set, i.e. the outer diameter of the inner ring and roller set must be smaller than the inner bore size of the assembly guide outer diameter 8, otherwise assembly cannot be performed. With the assembly guide outer diameter 8 sized, the inner race and roller set are sized to allow for smaller or fewer rollers to be installed, resulting in lower overall bearing loads.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a conical hub unit.

The purpose of the invention is achieved by the following technical scheme: a conical hub unit mainly comprises an inner ring, an outer ring, a retainer, rollers, bolts, a guide ring and a sealing ring assembly, wherein a roller path is arranged between the outer ring and the inner ring, the rollers retained by the retainer are installed in the roller path to form a double-row roller path of a hub bearing unit, the guide ring is pressed at the inner diameter position of the right end of the outer ring, and an assembly guide structure is formed by the guide ring and the outer ring together; and a bolt is arranged on the outer side of the right end of the outer ring, and sealing ring assemblies are arranged at the two ends of the outer ring and the inner ring for sealing.

The roller is provided with two rollers which are arranged in the roller paths of the outer ring and the inner ring in a splayed manner, and a retainer is arranged in an included angle cavity at the joint between the two rollers.

The guide ring is formed by connecting two hollow cylinders with different diameters, and one end of the guide ring is abutted against the inner diameter wall of the guide end of the outer ring.

The invention has the beneficial effects that: the outer diameter of the leading end of the outer ring is changed into the design of the pressed-in guide ring by mainly changing the design of the outer ring assembly guide outer diameter, so that the size limitation of the inner ring and the roller group is removed, the problem that the second generation conical hub unit has low load capacity is solved, and the integral load capacity of the bearing is improved; space is provided for improving the load capacity of the bearing, and larger and more rollers can provide higher dynamic and static load capacity, so that the whole service life capacity of the bearing is improved, the effective driving mileage is increased, the after-sale quality risk of the product is reduced, and the cost of enterprises is saved.

Drawings

Fig. 1 is a schematic structural diagram of the prior art.

Fig. 2 is a schematic structural diagram of the present invention.

Description of reference numerals: the inner ring 1, the outer ring 2, the retainer 3, the rollers 4, the bolts 5, the guide ring 6, the seal ring component 7 and the assembly guide outer diameter 8.

Detailed Description

The invention will be described in detail below with reference to the following drawings:

example (b): as shown in the attached figure 2, the conical hub unit mainly comprises an inner ring 1, an outer ring 2, a retainer 3, rollers 4, bolts 5, a guide ring 6 and a seal ring assembly 7, wherein a roller path is arranged between the outer ring 2 and the inner ring 1, the rollers 4 retained by the retainer 3 are arranged in the roller path to form a double-row roller path of the hub bearing unit, the guide ring 6 is pressed at the inner diameter part of the right end of the outer ring 2, and an assembly guide structure is formed by the guide ring 6 and the outer ring 2 together; and a bolt 5 is arranged on the outer side of the right end of the outer ring 2, and sealing ring assemblies 7 are arranged at two ends of the outer ring 2 and the inner ring 1 for sealing. The number of the rollers 4 is two, the two rollers 4 are arranged in the roller paths of the outer ring 2 and the inner ring 1 in a splayed mode, and a retainer 3 is arranged in an included angle cavity at the connecting position between the two rollers 4. The guide ring 6 is formed by connecting two hollow cylinders with different diameters, and one end of the guide ring is abutted against the inner diameter wall of the guide end of the outer ring 2.

The original outer ring 2 and the original assembly guide outer diameter 8 are integrally designed, the outer ring 2 and the guide ring 6 are designed in a split mode, the guide ring 6 is pressed into the outer ring 2 in the assembly process, the size limitation of the inner ring and the roller group is removed, the size is not limited by the guide outer diameter in the process that the inner ring and the roller group are assembled from the right side, and meanwhile the roller size can be designed to be increased or the number of rolling bodies can be increased, so that the higher integral bearing load capacity can be obtained.

It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.