Pre-tightening force measuring device of driving gear assembly of gearbox of tractor

Abstract

The invention relates to a pre-tightening force measuring device of a driving gear assembly of a gearbox of a tractor. The pre-tightening force measuring device comprises a measuring mechanism and a protecting and adjusting mechanism, wherein the measuring mechanism comprises a supporting base, a bevel gear engaging shaft, a torque transmitter and an end base, the bevel gear engaging shaft is supported on the supporting base through a bearing, a shaft shoulder end face of the bevel gear engaging shaft is connected with the bearing, a bevel gear engaging disk and a brake disk are arranged on the outer side of the bevel gear engaging shaft, the end base is installed on the supporting base, the torque transmitter is connected with the bevel gear engaging shaft and the end base, the torque transmitter is connected with a displayer, a driving part of the protecting and adjusting mechanism is installed on the supporting base, a telescopic part of the driving part is connected with a connection sleeve, a locking pin is connected with the connection sleeve, a locking pin hole and a notch are arranged on the supporting base or a locking base which is installed on the supporting base, the locking pin hole is matched with the locking pin, the notch is used for placing the brake disk, and a locking hole or a locking groove is arranged on the brake disk. The pre-tightening force measuring device has the advantages that the structure is reasonable, the pre-tightening force of the driving gear assembly can be measured and adjusted conveniently, and the assembly efficiency can be improved.

Description

technical field [0001] The invention relates to a pretightening force measuring device of a tractor gearbox driving gear assembly, belonging to the technical field of tractor gearboxes. Background technique [0002] The bevel gear transmission pair in the tractor gearbox is responsible for the reversing in the power transmission and the driving of the whole vehicle. In order to meet the requirements of smooth power transmission, low noise and long life, there are certain requirements for its assembly accuracy. When assembling, the assembled active bevel gear assembly is installed in the case to mesh with the passive bevel gear. Therefore, the assembly accuracy of the active bevel gear assembly directly affects the assembly quality of the bevel gear transmission pair. [0003] See figure 1 As shown, the active bevel gear assembly of the bevel gear transmission pair includes the active bevel gear shaft 6, the outer tapered roller bearing 3, the inner tapered roller bearing 5...

AI Technical Summary

Problems solved by technology

However, this measurement method relies on manual observation of the scale on the torque rod, which not only results in inaccurate observation of the pretightening force, but also requires high operating requirements for the testing personnel and high labor intensity.

Furthermore, after measuring the pre-tightening force of the active bevel gear assembly, if it does not meet the pre-tightening force requirements, it is necessary to adjust the adjustment nut before measurement, which is inconvenient to operate and difficult to improve assembly efficiency

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