Tension sensor, moment limiter and crane

A technology of tension sensor and torque limiter, which is applied to cranes, force/torque/power measuring instruments, instruments, etc., can solve the problems of large sensor measurement error, difficult production and high price, etc., and achieve small measurement error and high production efficiency. Simple, effective measurement accuracy

Active Publication Date: 2014-06-18
SANY HEAVY IND CO LTD (CN)
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  • Abstract
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  • Application Information

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Problems solved by technology

[0008] In view of this, the present invention provides a tension sensor, which can solve at least one of the defe

Method used

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  • Tension sensor, moment limiter and crane
  • Tension sensor, moment limiter and crane
  • Tension sensor, moment limiter and crane

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Embodiment Construction

[0038] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] In the present invention, the terms "first" and "second" are mainly used to distinguish different components, but do not specifically limit the components.

[0040] figure 1 Shown is a schematic structural view of a tension sensor according to an embodiment of the present invention, figure 2 yes figure 1 Schematic diagram of the structure of the connecting portion of the illustrated embodiment; image 3 yes figure 1 Schematic diagram of the structure of the barrel part of the illustrated embodiment. It can be seen from the figures that the tension sensor of this embodiment includes a cylinder body 1 , a sealing partition 2 , a connection part 3 , a hydraulic detection device 4 and a computing device 5 .

[00...

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Abstract

The invention discloses a tension sensor, a moment limiter and a crane. The tension sensor comprises a barrel, a sealing partition plate, a connecting section, a hydraulic detection device and a computation device, wherein the sealing partition plate is arranged on the connecting section and partitions the barrel into a first chamber and a second chamber; the first chamber or the second chamber is filled with hydraulic oil; the hydraulic detection device is used for detecting the intensity of pressure of the hydraulic oil; the computation device calculates the tension according to the intensity of pressure, and the stress area of the first chamber or the second chamber. Based on the novel working principle, a novel tension sensor is provided, the traditional sensor can be replaced, and the tension sensor has the advantages of being simple to produce and manufacture, low in cost, small in measurement error and the like, and is especially applicable to measurement of large load.

Description

technical field [0001] The invention mainly relates to the field of construction machinery and force sensing technology, in particular to a tension sensor, a crane and a moment limiter provided with the tension sensor. Background technique [0002] Cranes (especially crawler cranes) and other equipment have high requirements on the safety of operations. The moment limiter is a very important safety monitoring device, which can monitor and record the operation of the equipment in real time, and automatically realize overload protection and over-pitch protection. Ensure that it operates within a safe range, and alarm when dangerous conditions or overload occur, and cut off the movement in the dangerous direction at the same time, so as to ensure the safety of equipment and personnel. [0003] The torque limiter is mainly composed of an angle sensor, a force sensor, a controller and a display, among which the pressure or tension measurement of the force sensor is the key to the...

Claims

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Application Information

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IPC IPC(8): B66C23/88B66C13/16
CPCB66C23/905G01L5/101
Inventor 易小刚韩晓东
Owner SANY HEAVY IND CO LTD (CN)
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