CN203629953U

CN203629953U - Force sensor protective device of horizontal pulling tester

Info

Publication number: CN203629953U
Application number: CN201320846368.0U
Authority: CN
Inventors: 乌慧霞; 郭海森; 李茂金
Original assignee: JINAN SHIDAI SHIJIN TESTING MACHINE GROUP CO Ltd
Current assignee: JINAN SHIDAI SHIJIN TESTING MACHINE GROUP CO Ltd
Priority date: 2013-12-20
Filing date: 2013-12-20
Publication date: 2014-06-04
Anticipated expiration: 2023-12-20

Abstract

The utility model discloses a force sensor protective device of a horizontal pulling tester. The device comprises an oil cylinder, a piston, a load sensor and a mobile cross beam, and further comprises a spherical fulcrum bar, a spherical support and a disc spring, wherein the spherical fulcrum bar is placed in the spherical support and charged in the piston with the spherical support, the spherical support is fixedly arranged on the piston, a positioning hole is formed on the load sensor, the positioning hole of the load sensor passes through the spherical fulcrum bar and is connected to the rear end of the mobile cross beam through a fixed bolt, and the disc spring is arranged at the front end of the mobile cross beam. The disc spring is fixed at the front end of the mobile cross beam through a disc spring installation frame by using nuts. According to the device disclosed by the utility model, after a sample is broken, the sensor can be effectively protected, so that the sensor is prevented from being damaged by impact forces. The device is simple in structure and reliable in performance, and fully avoids damage on the sensor caused by the inertia force of the piston after the sample is broken.

Description

A kind of sleeping power protector for sensor that draws testing machine

Technical field

The utility model relates to a kind of sleeping power protector for sensor that draws testing machine, particularly a kind of on horizontal tensile testing machine the disrumpent feelings rear protective device to load sensor of sample.

Background technology

Along with scientific and technological progress and development, testing machine is as the equipment of material test and detection, obtain applying more and more widely, for some large-size horizontal tension testers, need applied load sensor measurement test force, crouching draws testing machine to carry out tension test to material or member, sample is disrumpent feelings can produce larger impact load afterwards to sensor, affects the performance of sensor, reduces precision and even damages sensor, and large-tonnage power sensor is expensive, and replacement cost is high.

Summary of the invention

Technical problem to be solved in the utility model is the defect for prior art, and a kind of protective device for power sensor on tension tester is provided, and avoids the larger impact load that is subject to of sensor.

For solving this technical matters; the utility model provides a kind of sleeping power protector for sensor that draws testing machine; comprise oil cylinder, piston, load sensor and moving beam; also comprise sphere pole, spherical bearing and dish spring; described sphere pole is placed in spherical bearing and packs into together in piston; spherical bearing is fixed on piston; described load sensor is provided with pilot hole; the pilot hole of load sensor is connected to the rear end of moving beam by set bolt through sphere pole, the front end of described moving beam is provided with dish spring.

Described dish spring uses nut to be fixed on moving beam front end by dish spring erecting frame.

Beneficial effect: the utility model, after sample is disrumpent feelings, can effectively be protected sensor, avoids sensor to be subject to impulsive force and destroys, simple in structure, dependable performance, the damage of having avoided the inertial force of the disrumpent feelings back piston of sample to cause sensor completely.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is cross-sectional view of the present utility model.

In figure: 1 nut, 2 dish springs, 3 sphere poles, 4 moving beams, 5 load sensors, 6 set bolts, 7 oil cylinders, 8. spherical bearing, 9 pistons.

Embodiment

Below in conjunction with drawings and Examples, the utility model is specifically described.

Figure 1 shows that structural representation of the present utility model.

Figure 2 shows that cross-sectional view of the present utility model.

The utility model comprises oil cylinder 7, piston 9, load sensor 5 and moving beam 4, sphere pole 3, spherical bearing 8 and dish spring 2.

Described sphere pole 3 is placed in spherical bearing 8 and packs into together in piston 9, and spherical bearing 8 is fixed on piston 9.

Described load sensor 5 is provided with pilot hole, and the pilot hole of load sensor 5 is connected to the rear end of moving beam 4 by set bolt 6 through sphere pole 3.

The front end of described moving beam 4 is provided with dish spring 2.

Described dish spring 2 uses nut 1 to be fixed on moving beam 4 front ends by dish spring erecting frame.

Test principle of the present utility model and process: when tension test, under the effect of oil cylinder 7 interior hydraulic oil, promoting piston 9 moves forward, because sphere pole 3 and spherical bearing 8 pack in the piston 9 of testing machine, sphere pole 3 is connected with load sensor 5, load sensor 5 use set bolts 6 are fixed on moving beam 4, be equivalent to that piston 9 promotes load sensor 5 and moving beam 4 moves forward, when disrumpent feelings moment of sample, act on the pulling force pop-off on moving beam 4, sphere pole 3, load sensor 5 travels forward together with moving beam 4 under the effect of inertial force, the sphere pole 3 being connected with load sensor 5 and spherical bearing 8 are thrown off in time, now, the compression deformation that the stressed generation of dish spring 2 is certain, dish spring 2 further reduces impact load suffered load sensor 5, play obvious buffer action, the be not hit destruction of power of protection load sensor 5, extend the serviceable life of load sensor 5.The utlity model has simple in structure, the advantage of dependable performance, the damage of having avoided the inertial force of the disrumpent feelings back piston of sample to cause sensor completely.

The above-mentioned embodiment of the utility model, just illustrates, and is not only, all within the scope of the utility model or the change being equal in scope of the present utility model all surrounded by the utility model.

Claims

1. a sleeping power protector for sensor that draws testing machine, comprise oil cylinder (7), piston (9), load sensor (5) and moving beam (4), it is characterized in that: also comprise sphere pole (3), spherical bearing (8) and dish spring (2), described sphere pole (3) is placed in spherical bearing (8) and packs into together in piston (9), spherical bearing (8) is fixed on piston (9), described load sensor (5) is provided with pilot hole, the pilot hole of load sensor (5) is connected to the rear end of moving beam (4) by set bolt (6) through sphere pole (3), the front end of described moving beam (4) is provided with dish spring (2).

2. the sleeping power protector for sensor that draws testing machine according to claim 1, is characterized in that: described dish spring (2) uses nut (1) to be fixed on moving beam (4) front end by dish spring erecting frame.