CN2125596U - Portable digital silk speed measurer - Google Patents

Abstract

The utility model discloses a portable digital wire speed measurer, comprising a wire speed sensor 1 and a displayer 3. The wire speed sensor comprises a handle 13 which is fixed with a sensing head 18 composed of an optical grating disc and an infrared photoelectric tube circuit. The sensing head is connected with a main guide wire wheel 9 by a sensing shaft 17. The parallel positions of the left and right sides of the main guide wire wheel are respectively provided with a subsidiary guide wire wheel 10 which can displace from top to bottom controlled by an operating rod 11 arranged on the handle. The head part of the sensing shaft is provided with a contact head 16. The photoelectric pulse signal output by the sensing head is input into the displayer by a conducting wire 2, and is processed by an amplifying and shaping circuit, a frequency division circuit, a counting and decoding circuit, etc. The photoelectric pulse signal then drives a digital liquid crystal displayer to display digital. The portable digital wire speed measurer which has a large measuring range and high precision can measure the linear speed of wires and the revolution speed of a rotating shaft at any time.

Description

Portable digital silk speed measurer

The utility model belongs to speed measuring device, is specifically related to the fast analyzer of silk in a kind of textile of chemical fibre industry.

It is to fix an angular-rate sensor on predetermined spinning streamline power transmission shaft that the silk of continuous motion or the linear velocity of line are measured method commonly used at present, to measure the angular speed of rotating shaft, manually calculates its linear velocity with formula then.This metering system is intuitively not loaded down with trivial details again.The comparatively advanced fast analyzer of silk by day capital well Co., Ltd. production is made of sensor and display two parts, and directly pointer shows silk speed.This analyzer is the analog voltage signal input that will be obtained by the speed measuring motor sensor, shows silk speed through power amplification pusher streaming current list index.The shortcoming of this table is because voltage attenuation is big, thereby precision is not high, and pointer shows the error at reading visual angle, and data are not directly perceived yet.In addition, the range of this analyzer is little, and maximum range is 1200 meters/minute, can not satisfy the mensuration of high-speed cruising silk, and volume is big, and function singleness is only limited to and measures silk speed.

The purpose of this utility model is to provide a kind of intuitive display to have a digital fast analyzer of pinpoint accuracy, and this analyzer is easy to carry, can measure silk speed in wide range ground, and the rotating speed of energy sensing equipment rotating shaft.

The fast analyzer of numeral silk of the present utility model is made of silk speed sensors and display two parts, said silk speed sensors comprises a handle, fix a sensing head of forming by light coral dish and infrared photocell circuit on the top of handle, the place ahead of sensing head connects a main godet roller by sensing shaft, the parallel position of main godet roller the right and left respectively is provided with a secondary godet roller, can do upper and lower displacement by the control stick control of installing on the handle, the head of sensing shaft is installed a contact, pass through the lead input display from the photoelectric pulse signal of sensing head output, amplification shaping in display, frequency division, the moving digital lcd of processing of circuit rear quarters such as count decoding carries out numeral and shows, the circuit changing switch of measuring silk speed and rotating shaft rotating speed is installed on the display.

Sensor circuit is arranged in the sensing head in this analyzer, and sensor electrical route light coral dish and infrared photocell are formed, output pulse signal.

Frequency dividing circuit in the display can adopt the CH279 medium scale integration (MSI).

Counting in the display, decoding circuit can adopt the CH267 integrated circuit.

Digital display in the display can adopt the LCD of 5N10A type five-digit number mixed decimal point.

The fast analyzer of silk of the present utility model is simple in structure, easy to use, can measure instantaneous silk speed and rotating shaft rotating speed at any time, and volume is little, and range is big, the precision height, and intuitive display, and have multiple functions such as power supply, self check, data maintenance, warning.Be widely used in the usefulness of textile industry (as chemical fibre, cotton spinning, system line) and some electromechanical industries surrey line velocity and rotating shaft rotating speed.

Below in detail embodiment of the present utility model will be described in detail by the accompanying drawing that provides.

Fig. 1 is a schematic appearance of the present utility model.

Fig. 2 is a sensor construction schematic diagram among Fig. 1.

Fig. 3 is the sensor side view.

Fig. 4 is the circuit theory diagrams of sensor and display.

This fast analyzer comprises sensor 1 and display 3 two parts.Liquid crystal digital display 6 is arranged on the display 3 and measure rotating shaft rotating speed R and measure the change-over switch 7 of the fast M of silk, and calibrate 4, data keep 5, the function key of power switch 8.Sensor 1 is connected by lead 2 with display 3.Sensor comprises a handle 13, a sensing head 18 that is made of light coral dish and infrared photocell circuit is fixed on the top of handle 13, a fixed smooth coral dish is arranged in the sensing head 18, also have a light coral dish that links into an integrated entity and can rotate with sensing shaft 17 with sensing shaft 17 in the anterior position of this light coral dish, dynamic and static two light coral dishes and infrared photocell have constituted the impulse output circuit of sensor jointly.Main godet roller 9 of suit on the sensing shaft 17, the parallel position of main godet roller 9 the right and lefts respectively is provided with the control stick 11 that a secondary godet roller 10 installs and is connected as a single entity on handle 13, can do upper and lower displacement by button 15 controls, the 12nd, the locator card of control stick, the head of sensing shaft 17 is installed a contact 16, be used to measure the rotating speed of rotating shaft, wire socket 14 is arranged at the bottom of handle, and the signal of telecommunication of sensing head 18 is by lead 2 input displays 3.

The circuit theory diagrams of display and sensor as shown in Figure 3.Sensor circuit mainly is made of light coral dish and infrared photocell, main godet roller 9 rotations in the moving sensing head the place ahead of the silk ribbon of high-speed cruising or the rotating shaft on the equipment drive contact 16 rotations, the capital causes sensing shaft 17 and the light coral dish that is fixed together with it rotates thereupon, produces electric impulse signal through static light coral dish and photoelectric numeral tube circuit.These signals are by lead 2 input display circuit, at first through the pulse signal amplification shaping circuit, send into the crystal oscillator and the frequency dividing circuit that constitute by the CH279 medium scale integration (MSI) then and carry out frequency division, for the pulse signal of counting, the digital lcd that the signal driving after counter-decoder circuit is handled is five directly shows measured result to the main counter-decoder circuit output that is made of the CH267 integrated circuit.In display circuit, there is a change-over switch K2 to control by the R/M switch on the display.

Main godet roller 9 in the fast instrument of above-mentioned silk be the V-type rubber wheel, but silk can be pressed in the main godet roller to increase the resistance of operation silk on main godet roller in the secondary godet roller 10 of the parallel upper and lower displacement of main godet roller, rotates at a high speed thereby drive a leading crop rotation.The main godet roller that is equipped with different-diameter can satisfy the silk speed mensuration of the high and low different speeds of service.Main godet roller 9 is sleeved on the power transmission shaft 17.One end of power transmission shaft 17 is fixed a light coral dish, the leading silk wheel of middle suit, and its head is installed a rubber contact, and contact can drive sensing shaft and rotate when contacting with the equipment rotating shaft, thereby records the rotating speed of rotating shaft.

The circuit of sensor is the pulse generating circuit that is made of light coral dish and infrared photocell in the fast instrument of above-mentioned silk, shaping is amplified in pulse can adopt general universal circuit, crystal oscillator and frequency dividing circuit can be selected middle scale CH279 integrated circuit for use, counter-decoder circuit can adopt the CH267 integrated package, and digital demonstration can be adopted the LCD and the corresponding driving circuit of 5N10A type five digit number mixed decimal point.In addition, comprise also in the display circuit that peripheral circuit that some are commonly used and switch are to realize multiple functions such as power supply, self check, data maintenance, warning.In the circuit diagram, K1 is a power switch, and K2 is the change-over switch of silk speed and rotating speed, and K3 is calibration, test conversion switch, and K4 is the data maintained switch.Display can adopt No. 5 dry cell power supplies of 4 joints.Components and parts in the foregoing circuit all can be bought from the market.

When actual measurement, measure a speed as need, the change-over switch on the display can be allocated to the M position, the button of pressing on the control stick makes the secondary godet roller on the sensor be pressed in the main godet roller to the silk that rising will move, just it is fast to obtain the silk of numeral demonstration rapidly.As the rotating speed of need sensing equipment, only need the change-over switch on the display is allocated to the R position, make the contact of power transmission shaft front end directly contact the rotating shaft rotating speed that can obtain surveying with tested rotating shaft.The maximum range of this analyzer is: the fast 5000m of silk/minute; 25000 rev/mins of rotating speeds.

Claims (5)

1, a kind of portable digital silk speed analyzer, constitute by silk speed sensors 1 and display 3 two parts, it is characterized in that said silk speed sensors comprises a handle 13, fix a sensing head 18 of forming by light coral dish and photoelectric numeral tube circuit on the top of handle 13, the place ahead of sensing head connects a main godet roller 9 by sensing shaft 17, the parallel position of main godet roller the right and left respectively is provided with a secondary godet roller 10, do upper and lower displacement by control stick 11 controls of installing on the handle, the head of sensing shaft is installed a contact 16, pass through the lead input display from the photoelectric pulse signal of sensing head output, amplification shaping in display, frequency division, processing of circuit rear drive digital lcds such as count decoding carry out numeral and show, the circuit changing switch of measuring linear speed and rotating shaft rotating speed is installed on the display.

2, analyzer as claimed in claim 1 is characterized in that said sensor circuit is made of light coral dish and infrared photocell.

3,, it is characterized in that said frequency dividing circuit, employing CH279 integrated circuit as claim 1 and 2 described analyzers.

4,, it is characterized in that said counter-decoder circuit adopts the CH267 integrated circuit as claim 1 and 2 said analyzers.

5,, it is characterized in that said digital display adopts the LCD of 5N10A type five-digit number mixed decimal point as claim 1 and 2 said analyzers.

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