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Torque and load sensor

A technology of load sensors and mechanical parts, applied in the field of mechanical measurement sensors, can solve the problem of not being able to detect torque and tension at the same time, and achieve the effect of accurate output signals

Inactive Publication Date: 2004-09-15
北京迪威尔石油天然气技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the space is limited, only one can be installed, and the torque and tension cannot be detected at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: internal pressure and external torsion type torque, load sensor, the shell (4) is cylindrical, and external diameter is 250 millimeters, and length is 280 millimeters. There are end covers (2) at both ends of the casing (4), and bearings (3) are respectively fixed on the end covers (2). There is a hole in the middle of the outer shaft (1), and the inner shaft (5) is sleeved in the hole of the outer shaft (1). A thrust bearing (9) is arranged between the inner shaft (5) and the outer shaft (1). The thrust bearing (9) is between the end of the inner shaft (5) and the bottom of the bore of the outer shaft (1). A shaft coupling groove (8) is respectively arranged at the upper end of the outer shaft (1) and the lower end of the inner shaft (5), which are used to connect with the parts to be detected when the sensor is installed. The torque borne by the outer shaft (1) cannot be transmitted to the inner shaft (5) through the thrust bearing (9); the pressure bo...

Embodiment 2

[0023] Embodiment 2: internal pull external torsion type torque, load sensor. Shell (4) is identical with embodiment 1, and its encasement structure is that the shaft (5) that is pasted with tensile resistance strain gauge (7) is inside, and the shaft (1) that is pasted with torque resistance strain gauge (6) is outside. There is a lock nut (11) at the end of the inner shaft (5). A thrust bearing (9) is arranged between the lock nut (11) and the retaining ring (10). Backstop ring (10) is threaded connection with outer shaft (1). Outer shaft (1) end has connecting shaft head (12), and connecting shaft head (12) top has dovetail groove (8), and its bottom is threadedly connected with outer shaft (1). A dovetail groove (8) is arranged at the lower end of the inner shaft (5). The dovetail groove (8) is to connect the components to be detected. The external tension on the outer shaft (1) is transmitted to the inner shaft (5) through the retaining ring (10), the thrust bearing (...

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Abstract

The invention is a kind of mechanical measuring sensor, which is used mainly in the testing piece of mechanism production and mechanism parts, measures the instant bearing torsion moment, pulling force and pressure. The character lies in: the elastic component is made up of the inner shaft and the outer shaft, the two shafts are nested. There has a pushing force bearing between the inner shaft and the outer shaft. The effect of the pushing bearing is: one shaft is used to bear the torsion moment transmission; the other shaft is used to bear load transmission. The invention attaches torsion moment resistance strain pieces and load resistance strain pieces on the two shafts. The force acted on the pieces are single, the output signal doesn't affects each other. It overcomes the deficiency of influence of the two pieces each other.

Description

technical field [0001] The invention is a mechanical measuring sensor, which is mainly used in machine manufacturing and testing of mechanical parts to detect the stress of the mechanical parts. Such as detecting the instantaneous torque, tension or pressure of the transmission shaft. It is composed of elastic elements, resistance strain gauges and shells; torque and load are respectively transmitted and detected by torque and load sensors. Background technique [0002] At present, the structure of the torque, tension or pressure sensor that detects the rotating mechanical parts is composed of a housing, an elastic element, and a resistance strain gauge. The elastic element is a shaft with a diameter in the middle that is smaller than the diameter at the ends. The middle part is the elastic deformation zone. Paste the load (load includes tension and pressure) resistance strain gauges and torque resistance strain gauges on the surface of the deformation zone of the elastic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
Inventor 习进录智玉杰
Owner 北京迪威尔石油天然气技术开发有限公司
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