CN2497288Y

CN2497288Y - Wall-hanging-weight type powder-position automatic checking apparatus

Info

Publication number: CN2497288Y
Application number: CN 01269457
Authority: CN
Inventors: 常欣; 戴悦
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-06
Filing date: 2001-10-17
Publication date: 2002-06-26
Anticipated expiration: 2011-10-17

Abstract

The utility model relates to an automatic detection device of a wall-hanging typed material bin material powder position, which consists of an industrial single chip, a motor, a hoister, a detector and a heavy hammer. The detector consists of a frame, a counter wheel and a gravity detection wheel. The counter wheel is rotatablely connected on the frame, with a rotary sensor fixedly arranged on the frame. The gravity detection wheel is movably arranged in the longitudinal sliding trough of the frame, with a position sensor fixedly arranged on the frame; the output of the rotary sensor of the counter wheel and the output of the position sensor of the gravity detection wheel are connected with the input port of the industrial single chip; the output port of the industrial single chip is connected with a motor by a relay; the motor is connected with the hoister by a chain; the steel wire rope of the hoister serially pierces the upper part of the counter wheel of the detector, the lower part of the gravity detection wheel and the upper part of the guide wheel, and is finally connected with the heavy hammer. The utility model has the advantages of simple structure, high reliability, easy maintenance and low cost. The utility model thoroughly overcomes the invalidation phenomena caused by the aging of the spring with perfect effect.

Description

Wall-hanging-weight type powder position automatic detection device

Technical field

The utility model relates to the automatic detection device of a kind of feed bin material powder position.

Background technology

At present, the pick-up unit of feed bin material powder position has ultrasonic type, radar type, condenser type, admitthance, Weighing type, electronic Weight type, hand Weight type etc., numerous pick-up units are except that last a kind of hand Weight type and the electronic Weight type of part, all be to be contained in Cang Ding, because of environment badly produces problems such as not high, the difficult in maintenance and maintenance cost of reliability is big, though and hand Weight type reliability height is safeguarded simple, expense is low, but can not measure automatically and with the measured value teletransmission; Though electronic Weight type has solved above problem, difficulty also exist to be installed, show unclearly when hand, creep can take place in spring, so that lost efficacy.In addition, the mechanism that multiple detection tension force is arranged in the powder level detecting apparatus at present, reasonable is Weight type dual spring testing agency, makes gravity detection wheel compression spring by weight by wire rope, an amount weight weightlessness, spring resets pushing away on the gravity detection wheel, so in the mill spring is required height, installation requirement is also high, spring is in compressive state for a long time, can cause aging, the creep of spring, quantitative check, adjustment in order to avoid lost efficacy.

Summary of the invention

The purpose of this utility model is exactly in order to address the above problem, and a kind of reliability height is provided, and safeguards simply, and expense is low and installation is easy, has thoroughly overcome because of the aging wall-hanging-weight type powder position automatic detection device that failure phenomenon occurs of spring.

Technical solution of the present utility model:

A kind of wall-hanging-weight type powder position automatic detection device, it is by industrial single-chip microcomputer, motor, windlass, detecting device and weight are formed, it is characterized in that detecting device is by frame, counter wheel and gravity detection wheel constitute, counter wheel is rotatably connected on the frame, its rotation sensor is installed on the frame, the gravity detection wheel is movably arranged in vertical chute of frame, its position transducer is installed on the frame, the output of the output of the rotation sensor of counter wheel and the position transducer of gravity detection wheel all links to each other with the input port of industrial single-chip microcomputer, the delivery outlet of industry single-chip microcomputer connects motor by relay, motor links to each other with windlass by chain, wire rope on the windlass is successively from the counter wheel top of detecting device, gravity detection wheel bottom and angle sheave top are passed, and finally link to each other with weight.

The utility model has solved the problem of feed bin material powder level detecting apparatus appearance in the past, owing to general weight wire rope all is along wall or column trend, so as long as the installation difficulty of device of the present utility model being fixed on the wall or just can avoid on the column causing because of the ground injustice.Simultaneously, tension-detecting mechanism of the present utility model has been cancelled spring, directly utilize the self gravitation of gravity detection wheel to detect the variation of steel wire rope tension, its structure is simpler, the reliability height, safeguard easily, expense is low, has thoroughly overcome because of the aging failure phenomenon that occurs of spring, as long as terrestrial gravitation does not lose, the utility model can not lose efficacy, and effect is very good.

Description of drawings

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

Fig. 2 is a mounting structure synoptic diagram of the present utility model.

Fig. 3 is the structure for amplifying synoptic diagram of the utility model gravity detection wheel.

Embodiment

As Fig. 1,2, the utility model is by industrial single-chip microcomputer 1, motor 2, windlass 3, detecting device 4 and weight 5 are formed, characteristics of the present utility model are, detecting device 4 is by frame 6, counter wheel 7 and gravity detection wheel 8 constitute, counter wheel 7 is rotatably connected on the frame 6, its rotation sensor is installed on the frame 6, gravity detection wheel 8 is movably arranged in vertical chute 20 of frame 6, its position transducer is installed on the frame 6, the output of the output of the rotation sensor of counter wheel 7 and the position transducer of gravity detection wheel 8 all links to each other with the input port of industrial single-chip microcomputer 1, the delivery outlet of industry single-chip microcomputer 1 connects motor 2 by relay 9, motor 2 links to each other with windlass 3 by chain, wire rope 10 on the windlass 3 is successively from counter wheel 7 tops of detecting device 4, gravity detection wheel 8 bottoms and angle sheave 11 tops are passed, and finally link to each other with weight 5.

In the utility model, industry monolithic 1, motor 2, windlass 3 and detecting device 4 can be placed in the same body 12 (also can with motor, windlass and the detecting device partial installation of industrial single-chip microcomputer and topworks), this body 12 is packed on the feed bin neighbouring body of wall or cylinder 13 walls, to avoid the being directly installed on feed bin top, prevent that dust and high temperature corrosion gas from directly entering.Avoided again simultaneously because of the uneven installation difficulty that causes in ground.

The counter wheel 7 of the utility model detecting device 4 can be installed on the frame by wheel shaft, its size is come fixed as required, usually it is fixed to come according to the diameter of the wire rope 10 that is positioned at counter wheel 7 races, and making its girth is integer, so that calculate the shift length of wire rope 10 easily.The rotation sensor of counter wheel 7 is arranged near on the frame of counter wheel 7 one sides, and it can adopt hall element sensor, also can adopt the optoelectronic switch sensor, also can adopt code sensor etc., and the pulse signal that they send is delivered to industrial single-chip microcomputer 1.Industry single-chip microcomputer 1 be a conventional CPU or PLC control circuit composition, is the Programmable Logic Controller of 90TM as the model of U.S. GE company.

Gravity detection wheel 8 in the utility model detecting device 4 as shown in Figure 3, it is made of wheel body 14, wheel shaft 15 and slide block 16, wheel shaft 15 links to each other with wheel body 14 by bearing 17, wheel shaft 15 two ends all are fixed with slide block 16, two slide blocks 16 are positioned at vertical chute 20 of frame 6 corresponding both sides, and the weight of gravity detection wheel 8 should be less than the double weight (weight of gravity detection wheel 8 is different and different according to the quantity of range difference and angle sheave 11) of weight 5.Because the wire rope 10 of windlass 3 passes from wheel body 14 bottoms of gravity detection wheel 8, so two slide blocks 16 of gravity detection wheel 8 just can be along vertical chute 20 upper and lower moving of frame 6 under weight 5 effects.The position transducer of gravity detection wheel 8 is arranged near on the frame 6 of gravity detection wheel 8 one sides, and it can adopt hall element sensor, also can adopt electric capacity, inductance near switch sensor, also can adopt the optoelectronic switch sensor.

Device of the present utility model can use in various seasoning feed bins such as coal dust, cement or granular material, is used for detecting automatically the grain position height in the feed bin.The weight 5 that links to each other with wire rope 10 terminals is positioned at feed bin 18, generally, weight 5 hovers over a fixed position of feed bin 18 internal upper parts, during work, send instruction by industrial single-chip microcomputer 1, motor 2 is rotated, motor 2 drives windlass 3 by speed reduction unit and rotates, wire rope 10 on the windlass 3 is just made released movement by detecting device 4 and angle sheave 11, weight 5 moves down, because weight 5 acting forces are greater than the gravity of the gravity detection wheel 8 of detecting device 4, when then weight 5 moves down, just make gravity detection wheel 8 be positioned at the top of frame 6 vertical chutes 20, at this moment by wire rope 10, the rotation sensor of the counter wheel 7 of detecting device 4 just constantly detects the shift length of wire rope 10, and data are delivered to industrial single-chip microcomputer 1.When weight 5 touches material 19, weight 5 weightlessness, wire rope 19 is in relaxed state because of losing tension force, then gravity detection wheel 8 is displaced downwardly to the next because of the tension force support that loses wire rope 10 at self gravitation effect lower edge frame 6 vertical chutes 20, make its position transducer send signal, reach industrial single-chip microcomputer 1, industry single-chip microcomputer 1 is just determined the instant enumeration data of counter wheel 7 rotation sensors according to transmission moment of this position signalling, and on display, show instant length, the i.e. height of the material level 19 in the feed bin 18.Simultaneously, industry single-chip microcomputer 1 is just controlled motor 2 counter-rotatings after receiving position signalling, the motion that makes windlass 3 make to regain wire rope 10, gravity detection wheel 8 returns then, when weight 5 is got back to the original position, send signal to industrial single-chip microcomputer 1 by null pick-up, motor 2 is quit work, finish the one-shot measurement process.

Claims

1, a kind of wall-hanging-weight type powder position automatic detection device, it is by industrial single-chip microcomputer, motor, windlass, detecting device and weight are formed, it is characterized in that detecting device is by frame, counter wheel and gravity detection wheel constitute, counter wheel is rotatably connected on the frame, its rotation sensor is installed on the frame, the gravity detection wheel is movably arranged in vertical chute of frame, its position transducer is installed on the frame, the output of the output of the rotation sensor of counter wheel and the position transducer of gravity detection wheel all links to each other with the input port of industrial single-chip microcomputer, the delivery outlet of industry single-chip microcomputer connects motor by relay, motor links to each other with windlass by chain, wire rope on the windlass is successively from the counter wheel top of detecting device, gravity detection wheel bottom and angle sheave top are passed, and finally link to each other with weight.

2, by the described wall-hanging-weight type powder of claim 1 position automatic detection device, it is characterized in that industrial monolithic, motor, windlass and detector arrangements in same body, this body is packed on the feed bin neighbouring body of wall or cylinder wall.

3, by the described wall-hanging-weight type powder of claim 1 position automatic detection device, the counter wheel that it is characterized in that described detecting device is installed on the frame by wheel shaft, the rotation sensor of counter wheel is arranged near on the frame of counter wheel one side, it or adopt hall element sensor, or adopt the optoelectronic switch sensor, or adopt code sensor.

4, by the described wall-hanging-weight type powder of claim 1 position automatic detection device, it is characterized in that the gravity detection wheel in the described detecting device is made of wheel body, wheel shaft and slide block, wheel shaft links to each other with wheel body by bearing, the wheel shaft two ends all are fixed with slide block, two slide blocks are positioned at vertical chute of the corresponding both sides of frame, and the weight of gravity detection wheel should be less than the double weight of weight; The position transducer of gravity detection wheel is arranged near on the frame of gravity detection wheel one side, it or adopt hall element sensor, or adopt electric capacity, inductance, or adopt the optoelectronic switch sensor near switch sensor.