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Wheel hub unit negative clearance testing equipment

A technology for testing equipment and hub units, applied in measuring devices, instruments, etc., can solve problems such as vehicle safety hazards, poor repeatability, scratches, etc., and achieve high automation, improved safety performance, and high measurement accuracy.

Active Publication Date: 2017-10-10
济南易恒技术有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The repeatability is not good, and the repeated test of the same piece has a large deviation, which cannot truly reflect the clearance value, especially the product that directly moves the steel ball
And the fork of the steel ball shifting product may scratch the steel ball, which affects the assembly quality of the hub unit and brings great hidden dangers to the safety performance of the vehicle

Method used

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  • Wheel hub unit negative clearance testing equipment
  • Wheel hub unit negative clearance testing equipment
  • Wheel hub unit negative clearance testing equipment

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Embodiment Construction

[0022] The wheel hub unit negative clearance detection device of the present invention mainly detects the negative clearance value of the bearing after the inner ring of the wheel hub unit is press-fitted. The invention is divided into two devices, a positive clearance detection device and an inner ring re-pressing device, both of which adopt a frame structure. Such as figure 1 As shown, the main frame of each device is constructed of industrial profiles, and the door on the main frame is installed with plexiglass. When the door is closed, the operating status of the equipment can be observed to play a protective role. The upper end of the main frame door and window is equipped with a safety protection device, which adopts an electronic door lock. Except in the waiting state and the end of work state, the electronic door lock is in the protection state. At this time, if someone opens the door and window of the equipment, the equipment will stop urgently and alarm to protect ...

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Abstract

A wheel hub unit negative clearance detection device, including a positive clearance detection device and an inner ring re-pressing device, the positive clearance detection device includes a positive clearance main frame, a clearance measurement and clamping mechanism, and a positive clearance spindle measurement mechanism , Measuring lifting mechanism and workpiece jacking mechanism, inner ring re-pressing device includes inner ring main frame, upper measuring mechanism and lower jacking mechanism. The equipment uses a displacement sensor to measure the descending displacement of the inner ring, and obtains the negative clearance value of the hub unit. At the station of the positive clearance detection device, the inner ring is not pressed into place, and the positive clearance is measured by moving the flange and the inner ring up and down. Clearance value, press the inner ring into the station of the device, control a certain pressure, after pressing the inner ring in place, detect the displacement change of the inner ring when it is pressed in place, and calculate the negative play of the hub unit according to the positive clearance value Gap value. The equipment has a high degree of automation and high measurement accuracy, and realizes the detection of the negative clearance value of the wheel hub unit, ensures the quality of the wheel hub unit, and improves the safety performance of the motor vehicle.

Description

technical field [0001] The invention relates to a device for detecting the negative clearance value of a wheel hub unit after the assembly of the wheel hub unit is completed, and belongs to the technical field of wheel hub unit detection. Background technique [0002] The detection of the assembly quality of the hub unit is an important part of the safety performance detection of motor vehicles. The negative clearance value directly affects the service life of the hub unit. When the negative clearance value is not enough, the hub bearing is easy to loose and form vibration under the loaded state; when the negative clearance value is too large, the contact stress of the raceway is too large And produce early fatigue; at the same time, a reasonable clearance value also determines the quality of the hub unit assembly. [0003] At present, the detection of negative clearance is to indirectly reflect the value of negative clearance by detecting the unloading force. An axial pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/16
Inventor 杨书桐丁昌伟王晨王志民于清涛
Owner 济南易恒技术有限公司
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