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A method and device for obtaining the load distribution of a spherical-cone hybrid double-row hub bearing

A hub bearing and load distribution technology, which is used in ball and roller bearings, special data processing applications, instruments, etc., can solve the problem of difficult to obtain accurate load distribution of ball and cone hybrid double-row hub bearings.

Active Publication Date: 2018-06-01
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method and device for obtaining the load distribution of ball and cone hybrid double-row hub bearings, so as to solve the problem that it is difficult to obtain accurate load distribution of ball and cone hybrid double-row hub bearings

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  • A method and device for obtaining the load distribution of a spherical-cone hybrid double-row hub bearing
  • A method and device for obtaining the load distribution of a spherical-cone hybrid double-row hub bearing
  • A method and device for obtaining the load distribution of a spherical-cone hybrid double-row hub bearing

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Embodiment Construction

[0049] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0050] Embodiment of the method for obtaining the load distribution of the spherical-cone hybrid double-row hub bearing in the present invention

[0051] The present invention first deduces the angle ψ at any position of the steel ball i The normal contact load Q at 1i and the angle φ at any position of the tapered roller i The normal contact load Q with the outer ring 2i , and then get the total radial force Q generated by the steel balls in the left column on the inner ring 1r , Axial force Q 1a and resisting moment M 1 and the total radial force Q produced by the right row of tapered rollers on the inner ring 2r , Axial force Q 2a and resisting moment M 2 ;According to the fact that the inner ring of the bearing is in a balanced state under the combined force of the external load and the reaction force of all rolling elements, the...

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Abstract

The invention relates to a method and a device for obtaining load distribution of a ball-cone mixed double-row hub bearing. Firstly, a normal contact load Q1i in any position angle wi of a steel ball and a normal contact load Q2i in any position angle phi i of a conical roller with an outer ring are derived; then, total radial force Q1r, axial force Q1a and resistance torque M1 generated to the inner ring by the steel ball and total radial force Q2r, axial force Q2a and resistance torque M2 generated by the conical roller to the inner ring are obtained; a mechanical balance equation of the inner ring of the ball-cone mixed double-row hub bearing with delta r, delta a and theta as unknown quantities is built; and a Newton iteration method is applied to solve the balance equation to obtain a radial displacement delta r, an axial displacement delta a and an angular displacement theta of the inner ring of the bearing so as to obtain the load distribution conditions in each row of the bearing. The method can quickly obtain precise bearing characteristic parameters of the ball-cone mixed double-row hub bearing, can directly judge if the structural design of the ball-cone mixed double-row hub bearing is reasonable, and improves the design rationality and accuracy of the ball-cone mixed double-row hub bearing.

Description

technical field [0001] The invention relates to a method and a device for obtaining the load distribution of a spherical-cone hybrid double-row hub bearing, and belongs to the technical field of bearing design. Background technique [0002] The current mainstream vehicle hub bearings are divided into two types: double-row angular contact ball bearings and double-row tapered roller bearings; The advantages of compact size and low manufacturing cost are mostly used in small family cars; while double-row tapered roller bearings have the advantages of strong load-carrying performance and high bearing rigidity, and are mostly used in trucks. Nowadays, household car manufacturing tends to improve comfort and multi-functionality, and strives to expand the interior space of the car, so the weight of the family car increases accordingly, and the requirements for the bearing capacity of the wheel hub are higher. Since the double-row hub bearings only bear the main load in most cases,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C19/49G06F17/50
CPCF16C19/49G06F30/17
Inventor 牛荣军李文洒徐金超张建虎邓四二
Owner HENAN UNIV OF SCI & TECH
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