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Dynamic Measurement Method of Follow-up Grinding Force of Crankshaft Connecting Rod Neck

A crankshaft connecting rod, dynamic measurement technology, applied in the direction of grinding workpiece supports, grinding machine parts, grinding/polishing equipment, etc. Effect

Active Publication Date: 2019-03-22
SHANGHAI JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the defects in the prior art, the purpose of the present invention is to provide a dynamic measurement method of the crankshaft connecting pin journal follow-up grinding force that overcomes the difficulty of measuring the follow-up grinding force of the crankshaft

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  • Dynamic Measurement Method of Follow-up Grinding Force of Crankshaft Connecting Rod Neck

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Embodiment Construction

[0035] The present invention will be described in detail below using specific examples. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention.

[0036] Such as Figure 1 ~ Figure 3 As shown, according to the measurement principle of the follow-up grinding force of the crank pin journal 8, the center of the main journal o c As the origin, take the center of the main journal o c with grinding wheel 7 center o s The connecting line is the x-axis, and the rectangular global coordinate system xo is established c y; take the connecting rod neck center o p is the origin, the center of the connecting rod neck o p with the center of the main journal o c connect to u p Axes, establish a Cartesian local coordinate system u p o p v...

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Abstract

The invention provides a crankshaft connecting rod neck follow-up grinding force dynamic measurement method and device. The crankshaft connecting rod neck follow-up grinding force dynamic measurement device comprises a crankshaft, a sand wheel, a rotary measuring cell and a measuring unit, wherein a main shaft neck of one end of the crankshaft is connected with a sand wheel head frame, and a main shaft neck of the other end of the crankshaft is connected with a sand wheel tail frame; the sand wheel makes contact with a crankshaft connecting rod neck of the crankshaft; the rotary measuring cell is arranged on one of the main shaft necks of the crankshaft; and the measuring unit is connected with the rotary measuring cell. The crankshaft connecting rod neck follow-up grinding force dynamic measurement method and device have the following beneficial effects that the dynamic change of grinding force in the crankshaft connecting rod neck planetary motion process is converted into grinding force applied to the main shaft necks by building a mathematical model of grinding force in the crankshaft connecting rod neck follow-up grinding process, the grinding force is collected through a series of measuring equipment, and finally the crankshaft follow-up grinding force dynamic measurement method is formed; spatial position dynamic, continuous and precise measuring can be conducted on normal and tangential components of the grinding force at a grinding point of the connecting rod neck; and the method is suitable for engineering practice and solving the dynamic measuring problem of the crankshaft follow-up grinding force.

Description

technical field [0001] The invention relates to the field of engineering testing, in particular to a method for dynamically measuring the follow-up grinding force of a crankshaft connecting rod neck. Background technique [0002] In engineering practice, the measurement of the grinding force of the crankshaft connecting rod neck is mostly concentrated in the eccentric grinding of the crankshaft connecting rod neck, which is equivalent to cylindrical grinding. The grinding point of the cylindrical grinding remains unchanged, and the grinding force and the same direction, the measurement of grinding force generally uses the elastic tip. However, in the follow-up grinding process of the connecting pin neck, under the condition of uniform rotation of the crankshaft, the grinding point does planetary motion during the follow-up grinding process of the connecting pin neck, and the grinding point is changing all the time. The change will make the magnitude and direction of the spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B49/10B24B5/42B24B41/06
CPCB24B5/42B24B41/062B24B49/10
Inventor 姚振强王洪雨张满朝许胜
Owner SHANGHAI JIAOTONG UNIV
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