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General-purpose test device, linear actuator, and twist test device

A linear actuator, universal test technology, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as large-scale equipment, consumption of natural resources, pump noise, etc.

Inactive Publication Date: 2010-03-24
KOKUSAI KEISOKUKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the contrary, the test equipment using the hydraulic linear actuator has the following problems, that is, the pollution of the surrounding environment due to the leakage of working oil or oil mist, the increase in equipment size due to the installation of the working oil tank, and the problems of periodic maintenance of the actuator. Increased operating costs and large consumption of natural resources due to replacement of working oil, and noise from pumps

Method used

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  • General-purpose test device, linear actuator, and twist test device
  • General-purpose test device, linear actuator, and twist test device
  • General-purpose test device, linear actuator, and twist test device

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Embodiment Construction

[0048] Hereinafter, embodiments of the present invention will be described in detail using the drawings. figure 1 It is a front view of the universal testing device according to the first embodiment of the present invention. Such as figure 1 As shown, the test device 1 of the present embodiment is provided with: the device frame part 10 fixed on the base B, the fixing part 20 abutting against the upper end of the test piece (or the clamp installed on the upper part of the test piece), and the The lower part of the test piece (or the jig attached to the lower part of the test piece) contacts the movable part 30 .

[0049] In this embodiment, the device frame 10 has: a pair of legs 11 extending upward from the base B in a substantially vertical direction, a pair of guide rods 12 extending upward in a substantially vertical direction from the upper ends of the legs 11 , And the top 13 that is provided with the mode that connects the upper end of two guide rods 12.

[0050] A t...

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Abstract

The invention provides a general-purpose test device and a linear actuator and a twist test device. In the general-purpose test device and the linear actuator which drive a cross head by a servo motorand a feed screw mechanism, the servo motor and a linear guide of the feed screw mechanism are fixed to a single support plate. It is preferable that a drive shaft of the servo motor be coupled to the feed screw by a rigid coupling or a semi-rigid coupling. Moreover, in a twist test device which applies a twist load to a test piece by the servo motor and a speed reduction mechanism, both of the servo motor and the speed reduction mechanism are fixed to a first support member as a single member. It is preferable that a drive shaft of the servo motor be coupled to an input shaft of the speed reduction mechanism by the rigid coupling or the semi-rigid coupling.

Description

technical field [0001] The invention relates to a universal testing device, a linear actuator suitable for the universal testing device and a torsion testing device. Background technique [0002] Conventionally, in order to evaluate the strength, rigidity, and the like of materials and structures, material testing devices that apply tensile, compressive, and / or bending stress to materials, etc., have been used. This kind of material testing device is usually called a universal testing device. Examples of universal testing devices include those described in JP-A-2003-106965 and JP-A-2003-90786 (both are Japanese Laid-Open Patent Publications). [0003] The universal testing device described in Japanese Patent Application Laid-Open No. 2003-106965 and Japanese Patent Laid-Open No. 2003-90786 includes: a fixed part fixed to the device frame, and a device frame movable in a predetermined direction (such as an up-down direction) relative to the device frame. A crosshead, and a ...

Claims

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Application Information

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IPC IPC(8): G01N3/34
CPCG01N3/34G01N3/02G01N3/08G01N3/26
Inventor 松本繁宫下博至村内一宏长谷川正伸
Owner KOKUSAI KEISOKUKI KK
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