JPS5841467Y2 - Test member load measuring device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a load measuring device for test members, and is used to measure the compressive strength and tensile strength of members.

When measuring the compressive strength of a member, the lower end of the test member is supported by the piston of a hydraulic scale, a load is applied to the upper end of the member, and the load at which the member breaks due to compression is sometimes read using a hydraulic pressure gauge.

However, with this method of measuring member strength, it is not possible to measure tensile strength, and a separate tensile strength measuring device is required to measure tensile strength.

The load measuring device for test members according to the present invention has a configuration that can be used for both compression tests and tensile tests, in which a piston disk is housed in an oil chamber, a piston shaft is led out from one end plate wall of the oil chamber in an oil-tight manner, A hydraulic pressure gauge is attached to each part of the oil chamber partitioned by the piston disk, and a terminal for connecting one end of the test member is provided at the tip of the piston shaft.

The present invention will be explained below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an oil chamber, and one end plate wall 10 is provided with a shaft insertion hole 2, and the other end plate wall 11 is provided with a screw hole 3 for fixing the oil chamber.

3 is a piston, and the piston disk 31 is in the oil chamber 1.
The piston shaft 32 is slidably inserted into the hole 2 of the end plate wall 10 via the backing 42.

5 is a terminal provided at the tip of the piston shaft 32, and is provided with a screw hole 50.

The small oil chambers 1a and 1b are partitioned by piston disks 31, 6 is a bypass pipe that communicates these small oil chambers 1a and 1b, and 7 is a manual valve provided in the center of bypass pipe 6.

8a and 8b are oil pressure gauges for measuring the oil pressure in the respective small oil chambers 1a and lb.

To measure the strength of a member, such as a short column member, using the load measuring device of the present invention, as shown in FIG.
A chuck C is screwed into the screw hole 50 of the piston shaft tip 5, and the lower end of the columnar member is fastened with the chuck C.

Thereafter, the valve 7 of the bypass pipe 6 is opened to adjust the zero point of each oil pressure gauge 81, 8b, and then the valve 7 of the bypass pipe 6 is closed.

When measuring the compressive strength of a member, a compressive load W is applied to the other end of the member.

This compressive load W increases the oil pressure in the small oil chamber 1b, and the compressive load W at which the member is compressed and breaks is measured by the oil pressure gauge 8b.

On the other hand, when measuring the tensile strength of a member, a tensile load F is applied to the other end of the member.

This tensile load F increases the oil pressure in the small oil chamber 1a, and the tensile load F at which the member breaks under tension is measured by the oil pressure gauge 8a.

As mentioned above, according to the load measuring device according to the present invention, compression tests and tensile tests of members can be performed using a common measuring device, compared to cases where separate measuring devices for compression and tension are required. This method is extremely advantageous in terms of measurement equipment procurement costs, measurement work, etc.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a cargo collection measuring device according to the present invention, and FIG. 2 is an explanatory diagram showing the usage state of the measuring device. In the figure, 1 is an oil chamber, 10 is an end plate wall of the oil chamber 1, 31 is a piston disk, 32 is a piston shaft, 5 is a terminal of the piston shaft 32, and 8a and 8b are oil pressure gauges.

Claims (1)

[Scope of utility model registration request] A piston disk is housed in the oil chamber, and a piston shaft is led out from one end plate wall of the oil chamber in an oil-tight manner.A hydraulic pressure gauge is installed in each part of the oil chamber partitioned by the piston disk, and a hydraulic pressure gauge is installed at the tip of the piston shaft. , A test member load measuring device, characterized in that it is provided with a terminal for connecting one end of the test member.