CN2201664Y

CN2201664Y - Normal V type band flexibility testing machine

Info

Publication number: CN2201664Y
Application number: CN 93247040
Authority: CN
Inventors: 洪平
Original assignee: Sanming City Qiujiang Machinery Factory
Current assignee: Sanming City Qiujiang Machinery Factory
Priority date: 1993-12-06
Filing date: 1993-12-06
Publication date: 1995-06-21
Anticipated expiration: 2003-12-06

Abstract

The utility model relates to a normal V belt flexural property detecting device. In the utility model, a flutter system and a loading system are both designed into three groups. When a lever is positioned on a horizontal position, the included angle between the top surface straight part of a test sample and tension force action direction is 168 DEG and plus positive or negative two degrees, and the travel range of the flexural reciprocating movement of the test sample is 134 mm plus positive or negative 2 mm. The utility model is assembled with a belt breaking non-stop safety device, therefore the utility model has the advantages of accurate and reliable experimental data, high reproduction quality and convenient operation. The utility model replaces an original mileage experiment method, the experiment time is reduced to about 88 minutes from original more than 2000 hours, and the experiment cost is reduced.

Description

Normal V type band flexibility testing machine

The utility model is to be specifically designed to the equipment that classical V-belt carries out angular test.

Present domestic check classical V-belt product quality, it is the method that adopts USSR (Union of Soviet Socialist Republics) old-fashioned " tyre mileage test ", test period is long, nearly more than 2000 hour, experimentation cost height not only, the testing goal of this detection method that main is is indeterminate, and the means imperfection causes manufacturer can not in time grasp V carries product quality situation.Make the development of new product lack perfect detection means and reliable basis simultaneously.

For solving this pressing problem, task of the present utility model provides a kind of novel V band bending machine, it is with reference to Japanese JISK6323-1976(84) " V band " standard development and conform to GB1171-89 " classical V-belt " standard, the detection method of classical V-belt that it is perfect, fill up the blank of domestic classical V-belt angular test, had good economic benefits and social benefit.

Task of the present utility model is finished as follows: motor drives crank disc by reduction gear and rotates, and drives the axle and the centering block swing of tilting mechanism by connecting rod, rocking bar.Three groups of fork skies are enclosed within on the axle, do not rely on transfixion by three groups of gag lever posts when putting sample, when sample puts, load three groups of fork swings together under the drive of centering block by lever body.The angle of sample is designed to 168 ° ± 2 °, and it is 134 ± 2mm that sample is subdued stroke, and subduing frequency is 170 ± 2 times/minute.Rely on the fork of whereabouts when three groups of gag lever posts are used for process of the test owing to certain part sample fatigue fracture, continue test (event also claims broken belt not shut down safety feature) to guarantee other samples.Electric operation system can be realized unmanned by microcomputer automatic control.

The classical V-belt bending machine that utilizes the utility model design to be developed into just can solve the incomplete problem of present domestic classical V-belt quality testing means well.Owing to manufacture and design according to national standard, be equipped with gag lever post simultaneously, the control of systems such as computer, make these machine angular test data accurately and reliably, favorable reproducibility, easy to operate, detect examination and the evaluation of science and technology department of the Ministry of Chemical Industry through the Ministry of Chemical Industry rubber manufacturing machinery quality monitoring center, prove the main performance of this machine, assembly precision all meets the requirement that the enterprise product standard of putting on record is approved by Qingdao Rubber Industry Inst..It is caught up with world level for China V carries product quality a kind of means of testing accurately is provided, promoted the raising of China V carries product quality, having stopped substandard product floods market, safeguarded that state-owned big-and-middle-sized V is with the interests of manufacturing enterprise, suppose to detect 1% unacceptable product, so annual just can have significant social and economic benefit for country saves nearly ten million yuan.

Below in conjunction with accompanying drawing the embodiment that provides is further described: as shown in Figure 1, the utility model drives by motor 1.When energized, motor 1 rotates, and drives crank disc 3 by speed reduction unit 2 and rotates, and drive the axle 6 and centering block 7 swings of tilting mechanism by connecting rod 4, rocking bar 5.Three groups of fork 8 skies are enclosed within on the axle, do not rely on transfixion by three groups of gag lever posts 10 when putting sample 9, when sample puts, load three groups of fork swings together under the drive of centering block by lever body 11.Rely on the fork of whereabouts when three groups of gag lever posts are used for process of the test owing to certain part sample fatigue fracture, continue test (event also claims broken belt not shut down safety feature) to guarantee other samples.As shown in Figure 2, when lever was horizontal, the angle of sample end face straight line portion and tensile force action direction was 168 ° ± 2 °.As shown in Figure 3, to subdue reciprocating stroke be 134 ± 2mm to sample.Subduing frequency is 170 ± 2 times/minute.

Claims

1, a kind of classical V-belt bending machine is made up of electrical system, kinematic train, oscillation system and loading system etc., and it is characterized in that: when lever was horizontal, the angle of sample end face straight line portion and tensile force action direction was 168 ° ± 2 °; It is 134 ± 2mm that sample is subdued reciprocating stroke; Subduing frequency is per minute 170 ± 2 times; Testing machine is equipped with process of the test part sample broken belt does not simultaneously shut down safety feature.

2, according to the experimental machine of claim 1, it is characterized in that: the oscillation system of experimental machine and loading system are designed to three groups.