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Load measuring method and device

An axial load, array technology, applied in the direction of measuring devices, valve devices, valve operation/release devices, etc., can solve problems such as non-supply

Active Publication Date: 2016-03-16
FLOWSERVE MANAGEMENT CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Riester's device does not provide for detecting any misalignment of the load on the shaft

Method used

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  • Load measuring method and device
  • Load measuring method and device

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Embodiment Construction

[0026] While the above description covers many aspects, these should not be considered as limiting the scope of the invention but as merely providing illustrations of some representative embodiments. Similarly, other embodiments of the invention can be developed without departing from the spirit or scope of the invention. Features from different embodiments may be used in combination. The scope of the invention is therefore defined and limited only by the appended claims and their equivalents, not by the foregoing description. All additions, deletions, and modifications to the present invention disclosed herein that fall within the meaning and scope of the claims should therefore be embraced.

[0027] Figure 1A A cross-sectional view is shown of an embodiment of a machine control device 10 comprising a torque measuring device 20 of the present invention. Mechanical control device 10 may include a valve actuator and may be operated by, for example, manual, motor, or fluid pr...

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Abstract

An axial load measuring device used for a machine control apparatus (10) with a rotating shaft (30) can be used to obtain torque measurement value. The machine control apparatus (10) can include a valve actuator used for a fluid flow control device. The load measuring device comprises a beam (65a) which is operatively connected to the rotating shaft and can deform under axial movement of the rotating shaft. A sensor (80) is connected to at least one beam (65a) and generates an output signal opposite to the axial movement of the rotating shaft. A first end of the beam is maintained on two bearings (74) of the rotating shaft, a second end of the beam is fixed on shell (120) of the machine control apparatus, and the first end of the beam (65a) is capable of moving axially with the rotating shaft. The beam (65a) includes discrete sections having the same width and thickness.

Description

technical field [0001] The present invention relates to a method and apparatus for load measurement, and more particularly, the present invention relates to an axial load measurement on a mechanical control device having a rotating shaft, such as a valve actuator for a fluid flow control device. load measurement. Load measurements can be used to derive torque measurements. Background technique [0002] Fluid flow control devices include devices for liquids and gases. Valve actuators for fluid flow control devices are well known and can be operated mechanically. For example, valve actuators may be driven manually, by fluid pressure in which a shaft is directly or indirectly connected to a fluid-operated piston, or by electrohydraulic or electrofluidic means. Conventional valve actuators include an electrically driven input shaft that can rotate at relatively high speeds with relatively low torque. The input shaft can turn a relatively high torque, low speed output shaft v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/12F16K31/00
Inventor B·A·弗罗伊里D·J·莫里斯W·C·霍斯
Owner FLOWSERVE MANAGEMENT CO
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