CN102322987A - Device for measuring and displaying stress of rope belt and lantern ring of rope belt - Google Patents

Abstract

The invention relates to a device for measuring and displaying the stress of a rope belt and a lantern ring of the rope belt, in particular to a stress measuring and displaying device which is suitable for measuring the stress of a strapping belt or a listing belt. The stress measuring and displaying device comprises a pressure-sensitive conductive rubber (4), wherein the pressure-sensitive conductive rubber (4) is fixed on a tensioner (1) through a shaft pin (2) of the tensioner, and is connected with a microcontroller through a signal conditioning circuit, and the micro controller is also connected with a digital display. The stress measuring and displaying device can be used for converting the stress of a the rope belt and the lantern ring 3 of the rope belt into an electronic signal through the pressure-sensitive conductive rubber, inputting the electronic signal into the microcontroller after the electronic signal is regulated by the signal conditioning circuit, and displaying the electronic signal on a digital display, and has the advantages of convenience for use, simplicity in operation, quickness in reading and accuracy in the measurement of data.

Description

A kind of rope band and stress measurement of the rope band collar and display device

Technical field

The present invention relates to a kind of rope band and stress measurement of the rope band collar and display device, relate in particular to a kind of stress measurement and display device of measuring strapping or elevator belt that be applicable to.

Background technology

At present, the measurement of known rope band stress and display device are a kind of forms of the wedge rope_ring that opens wide or seal, and the stress of rope band can be through transformable range observation and the demonstration between the side arm end of spring.Measurement mechanism is around the inner tension pivot pin of the collar that is arranged on rope band, and its principle of work is: when measured object received stress, the collar angle that is looped around the tension pivot pin changed the distance between the side arm end at measurement mechanism two ends.

But known measurement and display device are to measure the gamut of load; Therefore the spring of such measurement mechanism must be measured very little acting force and very big acting force, and in the present instrument in order for example to measure the minimum force that occurs when the prestress, correspondingly need a weak spring; But it must bear very big pulling force again; Change in shape can take place in weak spring when overload, thus wrong demonstration stress, even adopt restraint device to guarantee that weak spring can not transship; Such device yet exists reading difficulty, the defective that measuring accuracy is low.

Summary of the invention

The object of the present invention is to provide a kind of rope band and stress measurement of the rope band collar and display device, solve the problem that existing measurement mechanism measurement range is limited, the measurement data precision is low.

For addressing the above problem, the technical scheme that the present invention taked is:

A kind of rope band and stress measurement of the rope band collar and display device; Comprise pressure-sensitive conductive rubber; This pressure-sensitive conductive rubber is fixed on the strainer through the strainer pivot pin, and this pressure-sensitive conductive rubber is connected with microcontroller through signal conditioning circuit, and microcontroller also is connected with digital indicator.

Technical scheme further is: described pressure-sensitive conductive rubber is a ring-type.

Technical scheme further is: described pressure-sensitive conductive rubber is a semicircular.

Technical scheme further is: above-mentioned signal conditioning circuit can be signal amplification circuit, signal denoising circuit or signal excitation circuit.

Technical scheme further is: above-mentioned microcontroller is for can demarcate microcontroller.

The pressure-sensitive conductive rubber ring is installed on the strainer pivot pin, and the rope band and the rope band collar are around strainer pivot pin and pressure-sensitive conductive rubber.When rope band and the tension of the rope band collar; Rope band and rope band collar stress transmission are the pressure of pressure-sensitive conductive rubber, and then influence the resistance of pressure-sensitive conductive rubber, when rope band and the rope band collar are tightened up, push pressure-sensitive conductive rubber to the inside; The stress of the rope band and the rope band collar is converted into the pressure to pressure-sensitive conductive rubber; Pressure-sensitive conductive rubber with stressed conversion change in physical properties, such as readable electronic signals such as resistance or frequencies, after this changes excitation, denoising and gain through modulate circuit and amplifies; Through the conversion input microcontroller of signal conditioning circuit, nominal data is calculated measurement result and is outputed to digital indicator before the microcontroller basis.Owing to adopted pressure-sensitive conductive rubber and modulate circuit, the subtle change of rope band and rope band collar stress can both be reflected, so this measurement mechanism can obtain higher measuring accuracy; Owing to adopted digital indicator, so the direct reading of this device is not estimated the very big number of degrees mode of equal error of reading and need not adopt.

Adopt the beneficial effect that technique scheme produced to be: to change the stress of the rope band and the rope band collar into electronic signal input microcontroller after the signal conditioning circuit arrangement again through pressure-sensitive conductive rubber; And on digital indicator, show; Not only easy to use, simple to operate, reading is quick, and measurement data is very accurate.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention one;

Fig. 2 is that the embodiment of the invention one is measured rope band and rope band collar stress synoptic diagram;

Fig. 3 is the structural representation of the embodiment of the invention two;

Fig. 4 is that the embodiment of the invention two is measured rope band and rope band collar stress synoptic diagram.

Among the figure: 1 is that strainer, 2 is that strainer pivot pin, 3 is that the rope band and the rope band collar, 4 are pressure-sensitive conductive rubber.

Embodiment

Following the present invention does and describes in further detail:

Embodiment one: as depicted in figs. 1 and 2; A kind of rope band and stress measurement of the rope band collar and display device; A kind of rope band and stress measurement of the rope band collar and display device comprise the pressure-sensitiveconductive rubber 4 of ring-type, and this pressure-sensitiveconductive rubber 4 is fixed on the strainer 1 throughstrainer pivot pin 2; This pressure-sensitiveconductive rubber 4 is connected with microcontroller through signal conditioning circuit, and microcontroller also is connected with digital indicator.The rope band and the rope band collar 3 are around ring-type pressure-sensitiveconductive rubber 4, and when rope band and 3 tensions of the rope band collar, the rope band and the rope band collar 3 be contact ring-type pressure-sensitiveconductive rubber 4 closely; Rope band and the rope band collar 3 stress are converted into the pressure of ring-type pressure-sensitiveconductive rubber 4; And then the resistance of change ring-type pressure-sensitiveconductive rubber 4, feeble signal of bridge circuit output that ring-like pressure-sensitiveconductive rubber 4 is formed is admitted to microcontroller to signal conditioning circuit after signal conditioning circuit is handled; Carry out analog to digital conversion; Microcontroller calculates the stress of the rope band and the rope band collar 3 according to data converted and predefined calibration value, is presented on the digital indicator.

Embodiment two: like Fig. 3 and shown in Figure 4; A kind of rope band and stress measurement of the rope band collar and display device; Comprise Semicircular pressure-sensitiveconductive rubber 4; This pressure-sensitiveconductive rubber 4 is fixed on the strainer 1 throughstrainer pivot pin 2, and this pressure-sensitiveconductive rubber 4 is connected with microcontroller through signal conditioning circuit, and microcontroller also is connected with digital indicator.Its method of application and principle of work and embodiment one are basic identical.

In above-mentioned two embodiment, signal conditioning circuit can be signal amplification circuit, signal denoising circuit or signal excitation circuit, and microcontroller is for can demarcate microcontroller.

Claims (5)

1. a rope band and stress measurement of the rope band collar and display device; It is characterized in that: comprise pressure-sensitive conductive rubber (4); This pressure-sensitive conductive rubber (4) is fixed on the strainer (1) through strainer pivot pin (2); This pressure-sensitive conductive rubber (4) is connected with microcontroller through signal conditioning circuit, and microcontroller also is connected with digital indicator.

2. a kind of rope band according to claim 1 and stress measurement of the rope band collar and display device is characterized in that: described pressure-sensitive conductive rubber (4) is a ring-type.

3. a kind of rope band according to claim 1 and stress measurement of the rope band collar and display device is characterized in that: described pressure-sensitive conductive rubber (4) is a semicircular.

4. a kind of rope band according to claim 1 and stress measurement of the rope band collar and display device is characterized in that: described signal conditioning circuit can be signal amplification circuit, signal denoising circuit or signal excitation circuit.

5. a kind of rope band according to claim 1 and stress measurement of the rope band collar and display device is characterized in that: described microcontroller is for can demarcate microcontroller.

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