Two-way cutter point support centring and levelling test device

Abstract

The invention discloses a two-way cutter point support centring and levelling test device, comprising a cutter point support arranged on a test platform; wherein the cutter point support is composed of an upper cutter point, a middle cutter point, a lower cutter point and a base plate, a levelling frame and an outer frame are sequentially arranged at the periphery of the cutter point support, one side of the levelling frame is connected with the base plate of the cutter point support by a centring jack screw, the other side of the levelling frame is connected with the outer frame by a connection plate, and the outer frame and the test platform are connected into a whole; the upper cutter point and the middle cutter point are both provided with an adjustable screw, wherein the adjustable screw of the upper cutter point is contacted with the middle cutter point, the adjustable screw of the middle cutter point is contacted with the lower cutter point, and the upper cutter point is also provided with a connecting screw for connecting a test piece end-plate. The invention has simple processing, available materials, low manufacturing cost and permanent use. Centring efficiency of the cutter point support can be obviously improved, centring time can be reduced, test precision and test speed can be improved, and accurate and reliable test result and test security can be ensured.

Description

technical field [0001] The invention relates to a test device, in particular to a centering and leveling test device of a bidirectional knife-edge support, which is suitable for centering and leveling of a pressure test using a bidirectional knife-edge support. Background technique [0002] When using bi-directional knife-edge bearings to carry out pressure tests on hinged specimens at both ends, whether the specimens can be accurately centered is one of the key factors affecting the test results. The traditional method of alignment is to strike the knife-edge support with a hammer, causing the knife-edge support to move until geometric and physical alignment is achieved. When using this method for centering, it is difficult to quantitatively control the displacement and moving direction of the knife-edge support. To achieve accurate geometric and physical alignment, it is necessary to repeatedly tap the knife-edge support, which takes a long time and often The centering ti...

AI Technical Summary

Problems solved by technology

When using this method for centering, it is difficult to quantitatively control the displacement and moving direction of the knife-edge support. To achieve accurate geometric and physical alignment, it is necessary to repeatedly tap the knife-edge support, which takes a long time and often The centering time of the support is longer than the formal test time, and the centering efficiency and test efficiency are very low

On the other hand, due to the small contact area at the knife edge and the high height of the knife edge support, it is easy to tilt

Generally, the method of setting pads is used to achieve the level of the knife-edge support. Due to the influence of the height of the pads, there is no adjustable margin, and the pads need to be replaced repeatedly for trial adjustment, and the leveling accuracy is low.

In addition, the end plate of the test piece and the knife-edge support are only directly stacked without any fixing measures. When the test piece is damaged, it is easy to separate the test piece from the knife-edge support, and even cause the test piece to pop out and hurt people.

Images