CN201397229Y

CN201397229Y - Cantilever beam impact tester

Info

Publication number: CN201397229Y
Application number: CN2009200719300U
Authority: CN
Inventors: 于海龙; 罗杰
Original assignee: SHANGHAI INTERTEK VERIFIED SERVICE CO Ltd
Current assignee: SHANGHAI INTERTEK VERIFIED SERVICE CO Ltd
Priority date: 2009-05-08
Filing date: 2009-05-08
Publication date: 2010-02-03
Anticipated expiration: 2019-05-08

Abstract

A cantilever beam impact tester comprises a cylinder, an electromagnetic valve communicated with the cylinder, and a controller of which the output end is connected with the electromagnetic valve. Thetester further comprises a frame; an upper suspension arm is extended in the horizontal direction of the frame and connected with a vertically placed cylinder; a lower suspension arm is also extendedin the horizontal direction of the frame and connected with a vertically placed linear bearing; an electromagnet is connected to the cylinder in vertical direction; a loading block connecting rod penetrates through the linear bearing; and the electromagnet is connected with the loading block connecting rod through magnet effect. The utility model has the advantages of high reliability and simpleoperation.

Description

The Izod test machine

Technical field

The utility model relates to the shock-testing field, specifically is the Izod test machine.

Background technology

Furniture (seat, bed etc.) is to weigh an important indicator of furniture security to the resistance of dynamic impulsion.

The solenoid valve that present furniture impact testing machine normally is communicated with cylinder by controller control promotes by cylinder body or the piston rod that makes cylinder, discharges the tested surface of impact test specimen after the loading blocks of impact usefulness (as, sandbag) is lifted to certain altitude.Repeat this process then to certain number of times, can play the effect of weighing the furniture impact resistance.

Application number is that 92201130.3 application documents disclose a kind of sofa seat surface and spring mattress pad testing machine for mechanical properties, utilize the solenoid control cylinder intake, thereby making piston rod drive loading blocks promotes, the hoisting depth of its loading blocks depends on the height that piston rod can hold, the stroke of cylinder just, the height that can promote is quite limited.Before test, also need structure to establish a power---displacement measurement mechanism in addition, according to the corresponding pressure of seat surface decrement (displacement), adjust the loading blocks height again, decrement is simulated.Whether producing serious deformation for the tested surface of judging test specimen, also need in the repetitive shock test of different phase, use this power repeatedly---displacement measurement mechanism, process of the test is rather loaded down with trivial details.

The utility model content

The purpose of this utility model is to provide a kind of Izod test machine, and is simple to operate.

The utility model is by the following technical solutions:

The Izod test machine, the controller that solenoid valve that comprises cylinder, is communicated with described cylinder and output terminal are connected with described solenoid valve, also comprise a framework, described framework extends a upper cantilever in the horizontal direction, described upper cantilever connects a described cylinder of vertically placing, described framework also extends a lower cantalever in the horizontal direction, and described lower cantalever connects a linear bearing of vertically placing; Described cylinder in the vertical direction connects an electromagnet; Pass a loading blocks connecting link in the described linear bearing, described electromagnet magnetic connects described loading blocks connecting link.

According to the utility model, be provided with the infrared probe of penetrating at described electromagnet place, its output terminal connects described controller, and this infrared probe of penetrating is in order to respond to below loading blocks connecting link.

According to the utility model, also comprise support, described support in the vertical direction articulates a leading screw, and described leading screw assembles a nut, and described nut connects described framework.

Loading blocks connecting link of the present utility model is arranged in the linear bearing of vertical placement, can guarantee that loading blocks keeps in the vertical direction motion, test reliability height together with the loading blocks connecting link; Adopt infrared correlation probe to detect the position of electromagnet below loading blocks connecting link, the automaticity height of impulse test, simple to operate.

Description of drawings

Fig. 1 is the structural representation of the utility model Izod test machine;

Fig. 2 is the block diagram of the solenoid valve of the utility model Izod test machine, infrared correlation probe and controller;

Embodiment

Below in conjunction with accompanying drawing, describe the utility model in detail.

Referring to Fig. 1, the Izod test machine comprises a framework 10, framework 10 extends a upper cantilever 11 in the horizontal direction, upper cantilever 11 connects a cylinder 20 of vertically placing, and framework 10 also extends a lower cantalever 12 in the horizontal direction, and lower cantalever 12 connects the linear bearing of vertically placing one by one 32; Cylinder 20 in the vertical directions connect an electromagnet 30; Pass a loading blocks connecting link 31 in the linear bearing 32, electromagnet 30 magnetic connect loading blocks connecting link 31, loading blocks connecting link 31 hangs or connects loading blocks 33, be provided with an infrared probe 41 of penetrating at described electromagnet 30 places, its output terminal connects described controller 60, and the infrared probe 41 of penetrating is in order to respond to below loading blocks connecting link 31.Be provided with a base 50 below framework 10, base 50 is provided with the securing member (not shown), and fixedly chair 40.

Preferably, the diameter on loading blocks connecting link 31 tops makes loading blocks connecting link 31 fall behind difficult disengaging linear bearing 32 down greater than the diameter of linear bearing 32 openings like this, and 30 adhesives of convenient electromagnetic iron, to improve the repeatability of test.

Wherein, with application number be that 92201130.3 application documents are similar, cylinder among the utility model embodiment is communicated with solenoid valve, differently, the piston rod of the utility model cylinder 20 preferably in the vertical direction is fixedlyed connected with upper cantilever 11, so that the cylinder body of cylinder 20 drives electromagnet 30 in the vertical direction to-and-fro movements; Certainly, alternatively, the cylinder body in the vertical direction of cylinder 20 is fixedlyed connected with upper cantilever 11, by the piston rod drive electromagnet 30 in the vertical direction to-and-fro movements of cylinder 20.Referring to Fig. 2, controller 60 output terminals connect solenoid valve 21 in conjunction with Fig. 1, and controller 60 control electromagnetic valve 21 cooperate compressor that cylinder 20 is carried out exhaust or air inlet.

Now in conjunction with Fig. 1 referring to Fig. 3, regulate framework 10 height for convenience, framework 10 connects a nut 14, this nut 14 be assemblied on the leading screw 13 of vertically placing, and leading screw 13 articulates with support 70, support 70 lower ends connect base 50.Wherein, the leading screw 13 preferred ball-screws that adopt.

Process of the test is as follows: controller 60 control electromagnetic valve 21 cooperate compressor, from cylinder 20 interior exhausts, the cylinder body of cylinder 20 are descended, and drop to certain altitude, and are corresponding when electromagnet 30 energisings, adhesive loading blocks connecting link 31; Cooperate compressor air inlets to cylinder 20 in controller 60 control electromagnetic valve 21, and electromagnet 30 is when also being in "on" position, the cylinder body rising of cylinder 20, electromagnet 30 traction loading blocks connecting links 31, rise together with loading blocks 33, electromagnet 30 outages, loading blocks 33 vertically falls; Loading blocks 33 is impacted the seat surface of below chair 40; In process of the test, can utilize leading screw 13,, and then regulate the height of drop of loading blocks 33 by adjusting framework 10 height.

Because loading blocks connecting link 31 is arranged in the linear bearing 32 of vertical placement, can guarantee that loading blocks 33 keeps in the vertical direction motion, test reliability height together with loading blocks connecting link 31; In process of the test, except by the height of drop of cylinder 20 cylinder body lift adjustment loading blocks 33, also can regulate by leading screw 13, adjustable extent is big; The automaticity height of impulse test, simple to operate.

Above-described embodiment only is used to illustrate technological thought of the present utility model and characteristics, its purpose is to make those skilled in the art can understand content of the present utility model and implements according to this, can not only limit claim of the present utility model with present embodiment, be all equal variation or modifications of doing according to the spirit that the utility model disclosed, still drop in the claim of the present utility model.

Claims

1, a kind of Izod test machine, comprise cylinder, with solenoid valve and output terminal and the controller that described solenoid valve is connected that described cylinder is communicated with, it is characterized in that:

Also comprise a framework, described framework extends a upper cantilever in the horizontal direction, and described upper cantilever connects a described cylinder of vertically placing, and described framework also extends a lower cantalever in the horizontal direction, and described lower cantalever connects a linear bearing of vertically placing;

Described cylinder in the vertical direction connects an electromagnet;

Pass a loading blocks connecting link in the described linear bearing, described electromagnet magnetic connects described loading blocks connecting link.

2, Izod test machine according to claim 1 is characterized in that: be provided with the infrared probe of penetrating at described electromagnet place, its output terminal connects described controller.

3, Izod test machine according to claim 1 and 2 is characterized in that: also comprise support, described support in the vertical direction articulates a leading screw, and described leading screw is equipped with a nut, and described nut connects described framework.

4, Izod test machine according to claim 3 is characterized in that: described support lower end connects a base, and described base is provided with securing member.