CN2405199Y

CN2405199Y - Steel wire rolling device for on-line observing level in powder material storehouse

Info

Publication number: CN2405199Y
Application number: CN 99230048
Authority: CN
Inventors: 叶炳生; 包金明; 戴高楠
Original assignee: 包金明
Priority date: 1999-11-24
Filing date: 1999-11-24
Publication date: 2000-11-08
Anticipated expiration: 2009-11-24

Abstract

The utility model relates to a steel wire rolling device for on line observing material level in powder storehouses, which is a mechanical device for automatically measuring the storehouse level of coal powder. The device is composed of a movable pulley, a bracket, a guide rail, a position limiter, a machine frame, a reel drum and a counter. A vertical groove is respectively arranged at both sides of the machine frame; both ends of the bracket run through the vertical grooves and are respectively fixed on pressure springs; the other end of the pressure spring is fixed on a bottom board of the machine frame; a central hole of the movable pulley is sheathed on the bracket, and is positioned at the inner side of the machine frame; the counter is arranged on the machine frame; the reel drum is positioned below the machine frame. The position limiter is arranged at one side of the bracket, and is composed of Hall sensors.

Description

Powder storehouse material level on-line monitoring steel cable rolling device

The utility model is a kind of wire rope scrolling device that is used for coal-burning boiler coal powder position on-line measurement device, belongs to the technical field of coal-burning boiler coal coal powder silo with level meter device fabrication.

In thermal power plant, store up in the coal powder silo with level meter in formula coal-burning boiler coal storehouse at present, because the temperature in the powder storehouse is very high, dust waves, inclement condition, the requirement of explosion proof height, though have various electronic measuring instruments to occur, all can not use lastingly, thereby the coal powder silo with level meter in coal-burning boiler coal storehouse be a problem that does not fundamentally solve always because environment for use is abominable as laser measuring apparatus, ultrasonic meter, sonar, capacitance meter etc.Most enterprises still rest on shakes powder with manpower and floats the stage of surveying the powder position, this usefulness is manually shaken the lift heavy hammer, experience to determine the powder position with gravity with people's experience, the effect of its measurement is subjected to artificial factor affecting bigger, add every 30 minutes will be once hand, labour intensity is big, time-consuming effort, and on-the-spot maintenance is also big, adds and has only with regard to the earth signal indication, and the requirement of integrated automatic control also is difficult to adapt to.

Goal of the invention of the present utility model just provide a kind of electromechanical integration save time, laborsaving, security good, the powder storehouse material level on-line monitoring steel cable rolling device of long service life.

Powder storehouse material level on-line monitoring steel cable rolling device of the present utility model mainly is made up of travelling block, carriage, guide rail, stop, frame, reel, counter, be respectively equipped with a vertical channel in the both sides of frame, the two ends of carriage are passed vertical channel and are separately fixed on the stage clip, the other end of stage clip is fixed on the base plate of frame, the travelling block center pit is enclosed within on the carriage, and be positioned at the inboard of frame, and counter is located on the frame, and reel is positioned at the bottom of frame.Counter is made up of pulley, signal panels, sensor, pulley and signal panels are fixed in the same rotating shaft, and pulley is positioned at the inboard of frame, and signal panels are positioned at the outside of frame, establishing a circle magnetic signal generator on the circumferential side wall of signal panels, sensor is positioned at the outside of magnetic signal generator.Side at carriage is provided with stop, and this stop is made of Hall element.During measurement, sending signal by controller earlier rotates motor, wire rope is emitted in the reel reversing, will move upward along the vertical channel on the frame at the travelling block on the carriage, the measurement weight of wire rope other end drives wire rope extraction outside this device simultaneously, when measuring weight and fall on the coal dust of Pulverized Coal Bin, weight no longer falls, therefore, travelling block is not owing to there is downward pressure, will be by the retroaction of stage clip with the top of travelling block holder to vertical channel, send signal by stop this moment, the motor drives reel just changes, and travelling block is depressed downwards again, will measure weight simultaneously and mention.In the overall process of this action, the motion of wire rope all drives the rotation of counter, so counter records played the walking length of steel wire, thereby measures the position in storehouse height.

Advantage of the present utility model is to use this measurement device powder storehouse material level, not only speed is fast, the more important thing is save time, laborsaving, long service life, and security performance is good, the user just stand on the ground can operational measure overall process, and this device can fix on the ground, therefore safeguards, maintenance is also very convenient.This apparatus structure is simple, reliable in addition, and equipment cost is low.

Fig. 1 is a general structure synoptic diagram of the present utility model.Travelling block 1, carriage 2, guide rail 3, stop 4, frame 5, vertical channel 51, framework soleplate 52, reel 6, counter 7, pulley 70, signal panels 71, magnetic signal generator 711, sensor 72, stage clip 8, wire rope 9, weight 10 are wherein arranged.

Fig. 2 be Figure 1A-A to the sectional structure synoptic diagram.

Fig. 3 be Figure 1B-B to the sectional structure synoptic diagram.

Embodiment of the present utility model is as follows:

Frame 5 is that two blocks of same big steel plates are made, on this two block plate, have a vertical channel 51, travelling block 1 is installed on the carriage 2 and can freely rotates on carriage 2, travelling block 1 is between two block plates, stretch out outside the frame by the vertical channel on the frame respectively at the two ends of carriage 2, the two ends of carriage fix with an end of stage clip 8 respectively outside frame, the other end of stage clip is fixed on the base plate 52 of frame, in addition, also be provided with stop 4 on carriage 2, this stop is made of Hall element.On frame, also be provided with counter 7, counter is by pulley 70, signal panels 71, sensor 72 constitutes, pulley 70 and signal panels 71 are fixed in the same rotating shaft, when pulley rotates, can drive signal panels rotates synchronously, pulley is between two block plates of frame, signal panels are positioned at the outer side of frame, on the circumferential side wall of signal panels 71, be provided with a circle magnetic signal generator 711, outside the magnetic signal generator of signal panels, be provided with Hall element, when pulley rotates, signal panels also rotate synchronously, thereby the magnetic signal generator on signal panels will constantly trigger Hall element, reaches the purpose of the position in storehouse height that calculates coal-burning boiler powder storehouse with the number of turns of recording counter.The bottom that reel 6 is positioned at frame is the below of travelling block 1.Just can be made into the utility model according to the above.

Claims

1. a powder storehouse material level on-line monitoring steel cable rolling device is by reel, motor, pulley is formed, it is characterized in that this device is by travelling block (1), carriage (2), guide rail (3), stop (4), frame (5), reel (6), counter (7) is formed, be respectively equipped with a vertical channel (51) in the both sides of frame (5), the two ends of carriage (2) are passed vertical channel (5) and are separately fixed on the stage clip (8), the other end of stage clip (8) is fixed on the base plate of frame (5), travelling block (1) center pit is enclosed within on the carriage (2), and be positioned at the inboard of frame (5), counter (7) is located on the frame (5), and reel (6) is positioned at the bottom of frame (5).

2. powder storehouse material level on-line monitoring steel cable rolling device according to claim 1, it is characterized in that counter (7) is made up of pulley (70), signal panels (71), sensor (72), pulley (70) is fixed in the same rotating shaft with signal panels (71), pulley (70) is positioned at the inboard of frame (5), signal panels (71) are positioned at the outside of frame (5), be provided with a circle magnetic signal generator (711) on the circumferential side wall of signal panels (71), sensor (72) is positioned at the outside of magnetic signal generator (711).

3. powder storehouse material level on-line monitoring steel cable rolling device according to claim 1 and 2 is characterized in that being provided with stop (4) in a side of carriage (2), and this stop (4) is made of Hall element.