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Hydraulic elongator calibration device

A technology of hydraulic tensioner and calibration device, which is used in the testing of measuring devices, instruments, machines/structural components, etc. measurement and other problems, to achieve the effect of improving the eccentric load phenomenon, improving the measurement accuracy, and reducing the number of connecting parts

Pending Publication Date: 2019-09-06
广东省中山市质量计量监督检测所
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Problems solved by technology

The first is to measure directly through the tensile force sensor. The calibration device designed based on this method has many connecting parts and the force deformation is relatively large, which cannot evaluate the internal leakage index well, let alone realize portable measurement; This device also has problems such as many connecting parts and too large volume, and it cannot realize portable and high-precision measurement. The measurement process is easily affected by factors such as partial load, and the measurement accuracy is not high

Method used

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  • Hydraulic elongator calibration device
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  • Hydraulic elongator calibration device

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Embodiment Construction

[0034] In order to make the technical problems, technical solutions and beneficial effects solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0035] Such as Figure 1 to Figure 4 As shown, the embodiment of the present application proposes a hydraulic tensioner calibration device, including a first support plate 1, a load cell 3, a second support plate 2, a test pull rod 4, a first fastener 5 and a second fastener Item 6.

[0036] The test pull rod 4 is sequentially passed through the first support plate 1, the load cell 3 and the second support plate 2, and the first fastener 5 and the second fastener 6 are respectively located at both ends of the test pull rod 4 and relatively lock...

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Abstract

The invention relates to the technical field of mechanical metering detection, in particular to a hydraulic elongator calibration device, comprising a first support plate, a load cell, a second support plate, a test pull rod, a first fastener and a second fastener, wherein the test pull rod is sequentially disposed on the first support plate, the load cell and the second support plate in a penetration manner, and the first fastener and the second fastener are respectively located on both ends of the test pull rod and are relatively locked; the first end of the test pull rod extends out from the first fastener to form an elongator connecting portion for connecting the hydraulic elongator, and a force eccentric load elimination structure for correcting an acting force applied by the second support plate to the second fastener is further arranged between the second fastener located at the second end of the test pull rod and the second support plate. The hydraulic elongator calibration device provided by the invention has fewer connecting pieces, is convenient to carry, can realize onsite measurement and calibration, and greatly improves the eccentric load phenomenon between the secondfastener and the second support plate through the force eccentric load elimination structure.

Description

[0001] 【Technical field】 [0002] The present application relates to the technical field of mechanical metrology detection, in particular to a calibration device for a hydraulic tensioner. [0003] 【Background technique】 [0004] Hydraulic bolt tensioner is called hydraulic tensioner for short, it has the functions of bolt fastening and dismounting. It can be widely used in wind power generation, metallurgy and mining, petrochemical industry, shipbuilding industry, nuclear power, rolling stock, heavy machinery and other industries. With the help of the hydraulic power provided by the ultra-high pressure pump, the bolt is stretched in its elastic deformation zone by using the elastic range allowed by the material, so as to achieve the purpose of fastening or dismounting the bolt. In addition, it can also be used as a device for hydraulic interference connection to apply axial force for top pressure installation. Especially in the working environment with serious pollution or l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00G01L5/00
CPCG01M99/008G01M99/005G01L5/0033G01L5/0066
Inventor 王光培蔡承奇卢菊香
Owner 广东省中山市质量计量监督检测所
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