Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for measuring torque of hydraulic device

A hydraulic and power technology, applied in the field of torque measurement in hydraulic devices, can solve problems such as not being easy to determine

Inactive Publication Date: 2003-10-01
SAUER DANFOSS NORDBERG
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] This formula can only provide an estimated value of torque, because in operation, "e" is affected by many factors, and they are not easy to determine

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for measuring torque of hydraulic device
  • Method and device for measuring torque of hydraulic device
  • Method and device for measuring torque of hydraulic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] figure 1It is a cross-sectional view of a variable displacement (variable displacement) axial piston hydraulic device 100 and its housing. The general working process of this axial piston hydraulic device is well known, so it will not be repeated here. This figure shows three different locations where the non-contact torque sensor is fitted into the device, namely areas 110 , 120 and 130 . In most embodiments, it is likely that only one torque sensor will be used. Since one of the key objectives of the present invention is to incorporate non-contact torque sensors into a hydraulic device, several locations for several non-contact torque sensors are disclosed. In the figure, the hydraulic device adopts a spline shaft 101 . The spline shaft 101 is the part of the hydraulic device connected to and driven by an external mechanical power source (for example, an internal combustion engine, not shown in the figure). The shaft provides a means for connecting a hydraulic dev...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A hydraulic device within a housing having a power shaft associated with a power mechanism. A transducer adapted to measure torque is mounted within the housing. The stationary part of the sensor is mounted in a non-contact manner relative to the shaft. One method of measuring torque in a hydrodynamic device involves placing sensors at the locations described.

Description

(1) Technical field [0001] The invention relates to a method and a device for measuring torque in a hydraulic device. (2) Background technology [0002] It is often required to measure the rotational force acting on the rotating shaft, especially the rotational force on the power shaft. Such shafts are often found in hydraulic devices. Hydraulic devices such as pumps, motors, and transmissions are used to convert and transmit power between devices in many types of equipment. For example, a hydraulic pump can convert an internal combustion engine or other source of power into a flow of high-pressure hydraulic oil that can be used to perform useful functions in a machine. This flow of high pressure hydraulic oil can be used to power hydraulic motors that propel wheels or tracks in vehicles such as tractors, bulldozers or cranes. Additionally, this flowing, high-pressure hydraulic oil can be used in hydraulic cylinders that turn buckets on backhoes or operate other devices. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/10
CPCG01L3/102
Inventor 迈克尔·D·冈德鲁德
Owner SAUER DANFOSS NORDBERG