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Power output shaft drive device and method for operating power output shaft clutch

A technology for power output shafts and driving devices, which is applied in the direction of mechanically driven clutches, automatic clutches, clutches, etc.

Active Publication Date: 2019-03-12
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the liftable components of the three-point jack and the coupling elements for hooking up the trailer are located in this area of ​​the work vehicle, there is no corresponding space for such an overload protection device

Method used

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  • Power output shaft drive device and method for operating power output shaft clutch
  • Power output shaft drive device and method for operating power output shaft clutch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] exist figure 1 In , an internal combustion engine of a work vehicle usable in agriculture or construction, such as an agricultural tractor or a system vehicle, which drives the input shaft 2 of the PTO clutch 3 , is marked with the reference numeral 1 . The PTO clutch 3 is designed as a multi-plate clutch and has a plurality of friction plates 4 , between which a non-positive engagement is established after the PTO clutch 3 is engaged. An output shaft 5 designed as a hollow shaft emerges concentrically from the input shaft 2 from the PTO clutch 3 , on which the drive wheels 6 and 7 are freely rotatable and can be coupled to this output shaft 5 via a sliding sleeve 8 ground layout.

[0026] This arrangement of the drive wheels 6 and 7 is assigned to two intermediate shafts 9 and 10 , which are equipped with corresponding gear wheels, wherein the gear wheels of the intermediate shaft 10 mesh with the driven wheels 11 and 12 . The output wheels 11 and 12 are arranged rot...

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PUM

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Abstract

The present invention relates to a power output shaft drive device and a method of operating a power output shaft clutch. An input shaft driven by an internal combustion engine can be coupled to the output shaft connected to the power output shaft end via a power output shaft clutch. The power output shaft clutch is actuated into the engaged position, and the slip is known on the power output shaft clutch when the limit value of the torque transmitted by the power output shaft clutch is exceeded. The occurrence of slip causes the power output shaft clutch to be manipulated into its disengagedposition by the electronic control unit and the proportional valve. The pressure pk in the hydraulic actuating device of the power output shaft clutch is assumed to be proportional to the torque MA that can be transmitted by means of the power output shaft clutch, via the electronic control unit, by means of the characteristic curve, each of the transmittable torque can be allocated with a corresponding pressure pk, and the power output shaft clutch of the power output shaft drive device is operated based on the above pressure.

Description

technical field [0001] The invention relates to a PTO drive for work vehicles usable in agriculture or construction, in which an input shaft driven by an internal combustion engine can be operated by means of a PTO clutch hydraulically actuatable via a proportional valve Coupling with an output shaft that is drive-connected to the end of the PTO shaft, wherein a force-lockingly acting PTO clutch acts as an overload clutch, on which the power output shaft clutch exceeds the At the limit value of the torque, a slip detectable by the measured value sensor and the electronic control unit is known, which causes the PTO clutch to be actuated via the electronic control unit and the proportional valve to its disengaged position middle. [0002] Furthermore, the invention also relates to a method for operating a PTO clutch of a PTO drive as an overload clutch at which the limit of the torque transmitted by the PTO clutch is exceeded When , a slip detectable by the measured value sens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/28F16D43/20
CPCB60K17/28F16D43/20B60W30/1888B60Y2200/22B60W50/14B60W2050/146B60W2050/143B60W2520/26F16D2300/18F16D13/52
Inventor 迈克尔·施托克鲍尔亚历山大·斯托比奇
Owner ZF FRIEDRICHSHAFEN AG