CN1093632C

CN1093632C - Three-D sensing type instrument for detecting level of bulk material

Info

Publication number: CN1093632C
Application number: CN99113026A
Authority: CN
Inventors: 杨贵水; 张月霜
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-18
Filing date: 1999-06-18
Publication date: 2002-10-30
Anticipated expiration: 2019-06-18
Also published as: CN1278060A

Abstract

The present invention relates to a three-dimensional sensing object position detection instrument which is mainly composed of a detection mechanism, a transmission mechanism, a counting mechanism and an outer casing. The three-dimensional sensing detection instrument has the characteristics of transmitting a three-dimensional sensing signal along the direction of the axial line displacement and the rotary angle displacement. A sealing casing body is formed by the connection of an outer detection drum and a dragging core axle in the three-dimensional sensing detection instrument. An inner detection rod is movably connected with the dragging core axle and is installed in the casing body. A sensing component corresponding to a three-dimensional sensor is installed on the dragging core axle and the inner detection rod, and a conducting wire is lined in a steel wire rope to form a steel wire cable. A signal is transmitted by the steel wire cable, and one end of the steel wire cable is fixedly connected with a hole at the upper end of the dragging core axle. The present invention is suitable for the object position measurement in severe environment of flying dust, loosening and foaming and stacking and collapsing to form dust and blocks.

Description

Three-D sensing type instrument for detecting level of bulk material

Technical field:

The invention belongs to level meter, particularly be three-D sensing type instrument for detecting level of bulk material.

Background technology:

A lot of storage bins and receiver are arranged in modern commercial production, require to measure material level, liquid level reaches the storage capacity consumption is detected metering, because the ambient condition that material exists is more abominable, solid accumulation interface irregular, rough and uneven in surface or charge level is any angle of inclination, suddenly the heap that glides sometimes falls to caving in, lump material also is that particle flies upward at when filling with substance, the powdered material that has is soft, evacuate foaming, dust from flying when following feeding, material interface muddiness, the liquid corrosion that has is strong, high volatility, the liquid that has very easily adheres to, the impurity deposition, crystallization, dewfall.

Under rugged surroundings, the present level meter that uses, the detecting device of testing agency measuring error often occurs because of the influence of environment.

The weight level meter often exists because of solid accumulation face irregular, and heap falls to caving in and causes the shortcoming of climbing hammer, bury hammer, break, until not using.

Ultrasonic material level meter often exists ultrasonic waves transmitted to be absorbed by material dosing because of soft foaming or is scattered because of particle flies upward, and causes measuring error.

Capacitive level probe produces the additional capacitor effect because of material adheres to, impurity deposition, potential electrode be by dirty, and superposition produces measuring error in metering circuit.

Under rugged surroundings, use this class instrument, cause measuring error, malfunctioning, damage until not using.

Chinese patent CN2136462Y discloses a kind of name and has been called " bin-level slant height analyzer " it also will be measured mechanism and be contained in case and the dust cover, dust and moisture also are difficult to the erosion measurement device, but this invention can only be measured material in the feed bin by the permissible value of setting in fixing position, can not measure the material degree of depth continuously by the time interval of setting.

Summary of the invention:

The object of the invention: design three-D sensing type instrument for detecting level of bulk material, under material rugged surroundings state, to Powdered loose foaming, dust from flying, the unclear material of interface, and block, graininess, very easily pile the material that falls to caving in and carry out the detection of thing position, the detecting device of testing agency drags mandrel, interior detector bar by outer detection tube, sensor, compositions such as steel wire cable, the sensor of exhalation position signal are installed in outer the detection in the tube, and outer detection tube is the housing of sealing, sensor and material are isolated, sensor is at the axis direction that drags mandrel and interior detection corner swaying direction and interior detector bar corner swaying direction, and corresponding mutually fixed installation sensor element is implemented in the three-dimensional sensing direction, send thing position signal accurately and reliably, guarantee to detect sensitive, accurately, long service life.

The present invention is achieved in that

The design three-D sensing type instrument for detecting level of bulk material, include detection, transmission, counting mechanism, watchcase is formed, it is by outer detection tube 1, interior detector bar 2, pilot sleeve 3, drag sleeve 4, drag mandrel 5, sphere fulcrum 6, three-dimension sensor 7, flexible boot 8, steel wire cable 9, steel wire tube 9-1, lead 9-3, drum type guide 9-4, matrix bearing 10, pallet 11, platen 12, rolling wheel 17, wiping device 18, reductor 19, motor 20, seat 21 is moved on protruding rank, limit switch 22, counter 23, watchcase 24 compositions such as grade, testing agency is characterized in that: the three-dimensional sensing detecting device is fixedlyed connected with the outer tube 1 of surveying by flexible boot 8 one ends, the other end with drag mandrel 5 and fixedly connected, connect into the housing of a sealing, the flexible boot shape can be bent type sealing shroud, also can be packing washer.Drag mandrel 5 and drag sleeve 4 and be connected to one, drag sleeve 4 pilot sleeve 3 endoporus of packing into, drag mandrel 5 and drag sleeve 4 and prolong that the hole is linear moves, guide thimble 3 is connected to one with the outer tube 1 of surveying, interior detector bar 2 through the sphere fulcrum with drag the mandrel lower surface on be connected, the sphere fulcrum is a moving fulcrum, interior detector bar 2 can be swung around the moving fulcrum corner, dragging on mandrel and the interior detector bar, the sensing element of three-dimension sensor is installed in correspondence with each other, axis direction is installed sensing element, and the corner swaying direction is installed sensing element, is passed from drum type guide 9-4 endoporus by the steel wire tube 9-1 of steel wire coiled, lead 9-3 passes in steel wire tube, steel wire tube is lining in the wire rope 9-2 together with the drum type guide, forms steel wire cable 9, and the one end is fixed on and drags in the endoporus of mandrel upper end.

Characteristics of the present invention:

The three-dimensional sensing detecting device of 1 design, be implemented in the three-dimensional sensing direction and send charge level signal, sensor element linear displacement, corner swing displacement, guarantee that detecting device touches rough and uneven in surface or is any angle of inclination charge level, and can both send the charge level signal accurately and reliably during material such as loose foaming, it is inner that three-dimension sensor is contained in the outer tube of surveying, sensing element and material are isolated, can pickup, detecting device sealing, protection against the tide, waterproof, dust can not immerse, and can not produce measuring error.

The lead of 2 transmission signals passes from wire rope inside with material isolates, and lead can be by material wearing and tearing and damage, and the transmission of charge level signal is reliable.

The shell shape of 3 three-dimensional sensing detecting devices, length, body bulk are different and change by granularity, the density of survey material, are applicable to the feed bin of various rugged surroundings.

Description of drawings:

Fig. 1 transmission principle figure of the present invention

Fig. 2 the present invention installation diagram on feed bin

Fig. 3 three-dimensional sensing detecting device of the present invention cut-open view

Fig. 4 Facad structure synoptic diagram of the present invention

Fig. 5 the present invention left side structural representation

The number in the figure title:

1, surveys tube 2, interior detector bar 3, pilot sleeve 4 outward, drags sleeve

5, drag mandrel 6, sphere fulcrum 7, three-dimension sensor 7-1, dead ring

7-2, copper ring contact 8, flexible boot 9, steel wire cable 9-1, steel wire tube

9-2, wire rope 9-3, lead 9-4, drum type guide 10, matrix bearing

11, pallet 12, platen 13, set nut 14, adjust protruding dish

15, forcing screw 16, tapered gland 17, rolling wheel 18, wiping device

19, seat 22, limit switch are moved in reductor 20, motor 21, protruding rank

23, counter 24, watchcase 25, feed bin

Embodiment:

The present invention has car, and pincers mill, and digs, and the factory of mill process equipment all can make with the conventional mechanical processing technology.

Embodiment 1:

Fig. 1 shows the critical part drive connection of three-D sensing type instrument for detecting level of bulk material.

The three-dimensional sensing detecting device, it is by outer detection tube 1, interior detector bar 2, pilot sleeve 3, drag sleeve 4, drag mandrel 5, sphere fulcrum 6, three-dimension sensor 7, flexible boot 8 is formed, flexible boot 8 is bent type rubber sleeves, also packing washer, one end is fixedlyed connected with the outer tube 1 of surveying, the other end with drag mandrel 5 and fixedly connected, connect into the housing of a sealing, drag mandrel 5 and drag sleeve 4 and be connected to one, drag pack into the endoporus of pilot sleeve 3 of sleeve 4, drag mandrel 5 and drag sleeve 4 and prolong that the hole is linear moves, guide thimble 3 is connected to one with the outer tube 1 that detects, interior test bar 2 through the sphere fulcrum with drag the mandrel lower surface on be connected, the sphere fulcrum is a moving fulcrum, interior detector bar 2 can be around the swing of moving fulcrum corner, and the sensing element of three-dimension sensor is installed in pairs in correspondence with each other, and axis direction is installed two pairs of sensing elements, the corner swaying direction is installed a pair of sensing element, in the connecting and disconnecting of three-dimensional sensing direction, send contact point signal, gear train includes rolling wheel 17, wiping device 18, reductor 19, motor 20, seat 21 is moved on protruding rank, limit switch 22, motor 20 is connected with reductor 19 main drive shafts, and speed reducer output shaft one end fixed installation rolling wheel 17 and wiping device 18 have screw thread on the cylinder of other end axle garden, 21 holes of seat are moved on protruding rank screw thread, and two threaded engagement are enclosed within on the axle.Axle just, during reverse turn, a seat left side is moved on protruding rank, move right, make the limit switch action, control is high, low limit position, steel wire cable one end is fixed on and drags in the mandrel upper end hole, on the plate wheel 17 that the other end is coiled, signal conductor one end correspondence is welded on the copper ring of three-dimensional sensing detecting device sensing element, other end correspondence is welded on the wiping device 18, and terminal spindle nose fixed installation counter 23 is measured the work of beginning gear train, the three-dimensional sensing detecting device discharges with steel wire cable and descends, counter metering steel wire cable length, when the three-dimensional sensing detecting device contacts with the vertical or any angle of inclination of material face, three-dimension sensor action in it, send the material level contact point signal, detecting device oppositely promotes, and counter is read and measured the charge level height, realizes level gauging.

Fig. 2: show the mounting means of three-D sensing type instrument for detecting level of bulk material on feed bin.

Fig. 3, Fig. 4, Fig. 5 illustrates three-D sensing type instrument for detecting level of bulk material by detection, transmission, counting mechanism and watchcase are formed, the outer detection tube 1 of testing agency is the thin-wall case of a hollow, upper port and pilot sleeve 3 are welded into one, the pilot sleeve upper end hole has screw thread, drag the flanged shaft that mandrel 5 is a stepped hollow, the endoporus of upper end has screw thread, on the cylinder of outer garden screw thread is arranged, the middle part has the flange both sides that Thrust Faces is arranged, bore a cable-through hole, spindle nose garden, lower end cylinder has screw thread, seal the bottom, bore two wire holes, pallet 11 endoporus have screw thread, with drag mandrel 5 and be threaded and be fixed as one, flexible boot 8 is bent type rubber sleeves, also packing washer, on the outer garden cylinder of the pallet 11 of bent type rubber sleeve one end cover, platen is enclosed within and pushes down rubber sleeve on the axle, again with set nut 13 lockings, rubber sleeve one end is fixed on and drags on the mandrel, outside matrix bearing 10 upper ends of one end cover on the face of garden, there is screw thread matrix bearing lower end, outside being pressed in, the other end of the rubber sleeve that is threaded surveys on tube 1 upper surface, connect into the housing of a sealing, drag mandrel 5 lower end screw threads and ask moving sleeve 4 upper end inner hole threads to tighten and be fixed as one, interior detector bar 2 is contained in and drags in the sleeve 4, is one with sphere fulcrum 6 with dragging mandrel 5 flexible connections, adjust protruding dish 14 inner hole threads, with drag mandrel thread and be connected, it is following relative with matrix bearing 10 to be contained in pallet 11, copper ring contact 7-2 is fixed on dead ring 7-1 and goes up the ring-like contact of forming sensing element, adjusting flange 14 and the fixing a pair of corresponding ring-like contact of matrix bearing, matrix bearing lower surface with drag the fixing a pair of corresponding ring-like contact in mandrel flange upper surface, dragging 4 times stomidiums of sleeve and interior detector bar 2 fixing a pair of corresponding ring-like contacts, three pairs of ring-like contacts are formed three-dimension sensor 7, on the corresponding respectively copper ring contact that welds of lead, last, reach a left side down, right, contact can both connecting and disconnecting, finer wire coiled steel wire tube 9-1, pass from drum type guide 9-4 endoporus, signal conductor 9-3 passes from steel wire tube, all be lining in wire rope 9-2 inside, form a steel wire cable 9, at corresponding drum type guide place, steel wire cable also becomes drum type, tapered gland 9-4 is enclosed within both sides relatively, pack into and drag in the endoporus of mandrel upper end, compress with forcing screw 15, steel wire cable is fixed on drags in the endoporus of mandrel upper end, gear train includes wiping device 18, reductor 19, motor 20, seat 21 is moved on protruding rank, limit switch 22, motor 20 is connected with reductor 19 main drive shafts, speed reducer output shaft one end fixed installation rolling wheel 17 and wiping device 18, on the cylinder of the other end axle garden screw thread is arranged, 21 holes of seat are moved on protruding rank screw thread, and two threaded engagement are enclosed within on the axle.During the positive and negative rotation of axle, it is left and right mobile that seat is moved on protruding rank, make the limit switch action, control is high, low limit position, and the steel wire cable other end is coiled on plate wheel 17, the signal conductor correspondence is welded on the wiping device 18, terminal spindle nose fixed installation counter 23, watchcase is made up of upper shell cover and base, and base is fixedlyed connected with feed bin.

Claims

1, three-D sensing type instrument for detecting level of bulk material, it is by outer detection tube, drag mandrel, interior detector bar, three-dimension sensor, steel wire cable, rolling wheel, wiping device, reductor, motor, counter is formed, and it is characterized in that: outer the detections tube of three-dimensional sensing detecting device and drag mandrel, by connecting to form the housing of a sealing, interior detector bar with drag mandrel and flexibly connect, be contained in the housing, dragging on mandrel, the interior detector bar, the corresponding sensing element of three-dimension sensor is installed respectively, lead is lining in forms steel wire cable in the wire rope, the one end with drag mandrel on fixedly connected.