A concrete block pressure testing machine

Abstract

The invention discloses a concrete block pressure testing machine. The concrete block pressure testing machine comprises a movable pressure-bearing platform, a pressure sensor is arranged in the middle of the platform, a hydraulic jack is fixed above the pressure sensor, a test sample moving platform is arranged on the hydraulic jack, three screw components are evenly distributed around the pressure sensor and are perpendicular to the pressure-bearing platform, a top plate is fixed at the upper ends of the screw components, a movable bearing disc capable of moving along with the screw components is arranged on the screw components in a sleeving mode, a hand wheel used for adjusting rising and falling of the screw components is arranged on the movable bearing disc, the pressure sensor is connected with a digital display instrument box arranged on one side of the pressure sensor, and the hydraulic jack is communicated with a hydraulic pump located on the pressure-bearing platform through an oil channel. According to the concrete block pressure testing machine, the height can be adjusted according to the size of a block, structural composition is simple, manual operation is convenient, free moving can be achieved, and measurement can be conveniently conducted on site.

Description

technical field [0001] The invention relates to the field of pressure testing machines, in particular to a pressure testing machine used for measuring the bearing test of concrete blocks. Background technique [0002] Concrete blocks are widely used in various construction projects, and the performance of the product, such as bearing pressure and compressive strength, is its main quality index. The compressive strength of concrete is obtained by testing the concrete test block through the concrete compressive testing device. The test of the compressive strength of the concrete test block needs to be carried out after the test block is cured in the curing room for a specified time. After the concrete test block is cured for the specified time, the concrete test block is manually transported to the compressive strength testing device, and then tested The personnel manually place the concrete test block on the compressive strength testing device, align it manually, load the te...

AI Technical Summary

Problems solved by technology

At present, the universal machine or electro-hydraulic pressure testing machine is generally used to test the bearing pressure of concrete blocks. Since the universal machine is large in size and cannot be moved, the blocks in the production process can only be transported to the place where the universal machine is located for testing. High strength, slow detection, cannot be flexibly adapted to real-time monitoring of block quality in the production site

During the test of the clamping test device of the electro-hydraulic pressure testing machine, the ball seat of the lower platen is easily eccentric when it is under pressure, which will affect the test results, and because the upper platen is fixed, it depends entirely on the rise of the oil cylinder to drive the lower platen to rise, resulting in the oil cylinder Ascent stroke is too large

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