CN211013898U - A Standard Tensile Dynamometer for Verification of Tensile Machines - Google Patents

Abstract

The utility model discloses a standard tensile force measuring instrument for calibrating a tensile force machine. The tension machine hanger 3 has two, which are respectively located at both ends of the standard tension force measuring instrument 1; one end of the tension machine hanger 3 is fixedly connected with the standard tension force measuring instrument 1, and the other end is a ball head shape. One end of the tension machine fixture 31 that is matched with the tension machine hanger 3 is a ball socket 31 .

Description

A Standard Tensile Dynamometer for Verification of Tensile Machines

technical field

The utility model relates to a standard tensile force measuring instrument used for calibrating a tensile force machine.

Background technique

The tension machine is a mechanical or hydraulic method to apply force value, mainly composed of an afterburning system, a measuring system, a safety protection device, etc. It is a testing machine for measuring the mechanical properties of materials. Compression mechanical properties test.

According to the requirements of the regulations, the tensile machine needs to be checked regularly (such as every year), and it should be checked during the period when it is used more frequently.

At present, the standard dynamometer used by the measuring organization to verify the tensile machine is shown in Figure 1. The standard dynamometer is composed of a standard measuring instrument 1 and a digital display 2. The verification method is: apply pressure to the standard dynamometer (the accuracy of the standard dynamometer is more than 3 times that of the tensile machine) through the tensile machine, and then compare the reading of the tensile machine with the reading of the standard measuring instrument.

The shortcomings of the standard dynamometer used by the measuring organization to verify the tensile machine at present are:

When calibrating a tension machine that is often used to apply tension in working conditions,

Only the standard dynamometer that can measure the pressure can be used for verification as shown in Figure 1. This method cannot be verified under the actual working conditions of the tensile machine, which will bring errors in the actual use of the tensile machine and is not convincing.

Utility model content

The technical problem to be solved by this utility model is:

A standard tensile force measuring instrument is invented, which can be connected in series with the tensile force sensors to be detected, and the reading of the standard tensile force measuring instrument is used to replace the reading of the tensile force machine, thereby indirectly improving the precision of the tensile force machine.

The technical scheme of the standard tensile force measuring instrument used for calibrating the tensile force machine of the present utility model:

The utility model relates to a standard tensile force measuring instrument for calibrating a tensile force machine.

The tension machine hanger 3 has two, which are located at both ends of the standard tensile force measuring instrument 1 respectively; one end of the tension machine hanger 3 is fixedly connected with the standard tensile force measuring instrument 1, and the other end is a ball head shape;

One end of the tension machine fixture 31 that is matched with the tension machine hanger 3 is a ball socket 311 .

The beneficial effects of the present utility model:

1. It can provide a verification method under actual working conditions for the tensile machine that is often used for applying tensile force. The standard tensile force measuring instrument as shown in Figure 2 is used to verify the tensile machine, and the verification result is more convincing;

2. The standard tensile force measuring instrument can be connected in series with the tensile force sensor that needs to be detected, and the reading of the standard tensile force measuring instrument is used to replace the reading of the tensile force machine, which indirectly improves the precision of the tensile force machine.

Description of drawings

Figure 1: Schematic diagram of a standard dynamometer;

Figure 2: a schematic diagram of the composition of a standard tensile force measuring instrument used for calibrating a tensile force machine according to the present utility model;

Figure 3: a schematic diagram of a ball and socket fixture of a standard tensile force measuring instrument used for calibrating a tensile force machine according to the present utility model;

In the picture: 1- Standard tensile force measuring instrument 1, 2- Digital display, 3- Tensile machine hanger, 311- Ball socket.

Detailed ways

The specific embodiments of the technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

A standard tensile force measuring instrument for calibrating a tensile machine, as shown in Figures 2 and 3, consists of a standard tensile force measuring instrument 1, a tensile machine hanger 3, a digital display 2 and a tensile machine fixture 31.

The tension machine hanger 3 has two, which are located at both ends of the standard tensile force measuring instrument 1 respectively; one end of the tension machine hanger 3 is fixedly connected with the standard tensile force measuring instrument 1, and the other end is a ball head shape.

One end of the tension machine fixture 31 that is matched with the tension machine hanger 3 is a ball socket 311 .

The tension machine hanger 3 is customized according to the type of the jaws of each tension machine, and one end of the tension machine clamp 31 is required to be in the form of a ball socket with a standard tension force measuring instrument. The standard tensile force measuring instrument is made into a general structure, and the general structure is in the form of a ball head at both ends.

Preferably, one end of the tension machine hanger 3 is connected with the standard tension force measuring instrument 1 by bolts.

The verification method is: after the tension machine clamps the fixture and hangs the standard tension tester, apply a tension force to the standard tension tester (the accuracy of the standard tester is more than 3 times that of the tension machine) through the tension machine, and then compare the tension force. The reading of the machine and the reading of the standard measuring instrument are verified.

Claims (2)

1. The utility model provides a standard pulling force dynamometer for examining tensile machine which characterized in that: the tension force measuring device is composed of a standard tension force measuring instrument (1), tension force machine hangers (3), a digital display (2) and tension force machine clamps (31), wherein the number of the tension force machine hangers (3) is 2, and the tension force machine hangers are respectively positioned at two ends of the standard tension force measuring instrument (1); one end of the tensile machine hanger (3) is fixedly connected with the standard tensile force measuring instrument (1), and the other end of the tensile machine hanger is in a ball head shape; and one end of the tensile machine clamp (31) matched with the tensile machine hanger (3) is provided with a ball socket (311).

2. A standard tension force gauge for calibrating a tensile machine according to claim 1, wherein: one end of the tensile machine hanger (3) is connected with the standard tensile force measuring instrument (1) through a bolt.

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