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Device for quantitatively measuring micro rotating torque of gear in real time and use method thereof

A rotational torque, real-time quantitative technology, applied in the field of measurement, can solve the problems of indeterminate quantification, difficult adjustment of rotational torque, failure, etc., to achieve the effect of increasing stability and improving measurement accuracy

Pending Publication Date: 2018-11-02
XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is imprecise and not quantitative. When there are multiple planetary gears in the planetary gear train, it is difficult to adjust the rotational torque of each planetary gear to be consistent.
The stress of each planetary wheel is different, and the flow cannot be evenly distributed, which will cause excessive force on a certain planetary wheel, resulting in early failure

Method used

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  • Device for quantitatively measuring micro rotating torque of gear in real time and use method thereof
  • Device for quantitatively measuring micro rotating torque of gear in real time and use method thereof
  • Device for quantitatively measuring micro rotating torque of gear in real time and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0055] (1) Place the support plate 3 on the upper edge of the planet carrier 15 to be measured, and position it with the first notch 21 .

[0056] (2) After confirming that the transmission gear 1 is meshed with the planetary gear 14, use the two positioning pins 2 to completely position the support plate 3.

[0057] (3) Insert the dial type torque screwdriver 5 in the inner square hole of the transmission shaft 4, after the fixed torque wrench 6 passes through the second through hole 16, insert the head of the locking nut 13 on the upper end of the planetary wheel 14.

[0058] (4) Rotate the dial-type torque screwdriver 5 at a constant speed and observe the scale of the dial-type torque screwdriver 5. If the indicated value is greater than the upper limit of the rotational torque, turn the fixed torque wrench 6 counterclockwise to loosen the lock nut 13; if the indicated value If it is less than the lower limit of the rotational torque, turn the fixed torque wrench 6 clockwis...

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Abstract

The invention discloses a device for quantitatively measuring a micro rotating torque of a gear and a use method thereof. The device comprises a transmission shaft, two bearings, a transmission gear and a dial type torsion screw driver. The measuring device is mounted on a planet carrier through a supporting plate carrier and measures the micro rotating torque of a planetary wheel. When the dial type torsion screw driver is rotated in a uniform speed, the dial type torsion screw driver displays a torque value. An operator can accurately determine whether the torque of the planetary wheel is ina preset range and simultaneously performs adjustment. The transmission shaft performs accurate fixing of the transmission gear and can drive the transmission gear to rotate. The bearings which can bear a certain axial force can accurately fix the transmission shaft and the transmission gear radially, and can transfer the gravity of the dial type torsion screw driver, the transmission shaft and the transmission gear to the supporting plate, thereby maximally reducing influence of the device body to a measuring result.

Description

【Technical field】 [0001] The invention belongs to the field of measurement, and in particular relates to a device for real-time and quantitative measurement of tiny rotational moments of gears and a method for using the same. 【Background technique】 [0002] The planetary gear train is a mechanical structure often used in automobile transmissions. Multiple planetary wheels are mounted on the planet carrier through tapered roller bearings. The 2 tapered roller bearings inside each planetary wheel adjust the axial clearance through the tightening degree of the lock nut at the upper end. Different axial clearances will cause different rotational moments of the planetary wheels (most of the rotational moments are very small and require Control between 0.1Nm and 0.2Nm). Therefore, during the assembly process, it is necessary to measure the rotational moment of the planetary wheel in real time, and adjust the tightening degree of the lock nut at the upper end of the tapered roller...

Claims

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Application Information

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IPC IPC(8): G01L5/24
CPCG01L5/24
Inventor 耿利强王波李建宏
Owner XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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