CN208026349U - A kind of resistance shifting formula level meter resetted by magnet steel - Google Patents

Abstract

A kind of resistance shifting formula level meter resetted by magnet steel, it is related to a kind of level meter, the resistance shifting formula level meter includes detection plate, spring, axis, seal rubber sleeve, annular knurl cap, fore bearing, beam barrel, installation standby cap, locking nut, pedestal, rear bearing, pull-fork assembly, locating plate, electric machine assembly, line outlet, cover, circuit installing plate, motor, connecting terminal, relay, idler wheel, pivoted arm, microswitch, left fork, resets magnet steel, dead axle A, support arm, switch press plate, remote, dead axle B, right shift fork；Pedestal is connected with beam barrel, equipped with fore bearing, rear bearing on beam barrel, and is combined with axis；Equipped with detection plate, spring, the other end is clearance fit equipped with pull-fork assembly, locating plate, between axis and pull-fork assembly for one end of axis.The level meter avoids the dead unit problem caused due to spring from structure, is widely used in chemical industry, metallurgy, mine, builds the road, the upper and lower limit alarm of the industries feeding bin such as grain and environmental protection.

Description

A kind of resistance shifting formula level meter resetted by magnet steel

Technical field

The utility model is related to a kind of level meters, and formula level meter is moved more particularly to a kind of resistance resetted by magnet steel.

Background technology

Shifting formula level meter is hindered in solid level measurement, there are various model functions to approach, but existing resistance shifting formula object Position meter structure is more complex, and the probability of failure of initiation is relatively high, and applicant is continuously improved respectively thus, and successively applies Chinese patent, such as：

CN2053330U patents, the level meter use piston type reciprocal transmission system.With a sealing between axis and casing Part is closed, and the dust in feed bin is made to be isolated with the transmission system of level meter.Can in the prodigious environment of feed bin dust reliability service, Realize level control.

93 1 11021.1 swing types of patent ZL declared for 1993 measure the instrument of level of granular of powder materials, solve instrument The isolating problem of lubricating system and material；The recovery of the oscillation system fork of instrument itself is fallen by spring, i.e. material to instrument The impact of table has cushioning effect, avoids material impact and is damaged caused by instrument.

2 0012543.0 oscillating detection material level instruments of patent ZL declared for 2007, solve the problems, such as switch leads, but The problem of being sensitivity, does not solve still, but also is often damaged by material impact, the ZL 93 1 of invention in 93 years 11021.1 shift forks swung are two-way opening-closing structures, drive microswitch by the opening and closing movement of shift fork, therefore have cushioning effect.And The shift fork of invention in 2007 is fixed structure, and the action of switch is obstructed by detection plate, and motor body is promoted to reverse to drive fine motion Switch, without opening and closing movement, does not also just buffer；Motor is hung by copper sheathing, and motor body is not fixed, and resistance to shock is not It is good（Many feed bins will install vibrator for blanking), the sensitivity difference of both direction is also bigger（There is class with invention in 93 years Like), the craftsmanship of manufacture is not very good.

The resistance that the 2014 1 0156051.3 a kind of lines of patent ZL declared for 2014 are detached with fork component moves formula level Meter solves the problems, such as that switch connection and pull-fork assembly easily cause level meter failure, the level meter avoided from structure due to Sideline fractures and the accident that causes.

But due to often there is material impact, the opening and closing movement of shift fork back and forth, driving microswitch, also action is easy therewith Generate false alarm, these are all resetted by spring, but at the scene during use, the pulling force of resetting spring just and It when the pressure of spring is suitable in microswitch, just will appear microswitch non-restoring, be in middle critical state, that is, level The dead point of meter, level meter at this moment will be unable to work normally, influence to use, and can only wait until to be impacted again, pass through external force Effect, makes its recovery, returns to original state, and could restore normal work.So current level meter at the scene should process In, dead point is easy tod produce, its cisco unity malfunction is caused.

Invention content

The purpose of this utility model is to provide a kind of resistances resetted by magnet steel to move formula level meter, and the level meter is from structure On avoid the dead unit problem caused due to spring, be widely used in chemical industry, metallurgy, mine, build the road, the industries such as grain and environmental protection The upper and lower limit of feeding bin is alarmed.

The purpose of this utility model is achieved through the following technical solutions：

A kind of resistance resetted by magnet steel moves formula level meter, and the resistance shifting formula level meter includes detection plate, spring, axis, close Sealing set, annular knurl cap, fore bearing, beam barrel, installation standby cap, locking nut, pedestal, rear bearing, pull-fork assembly, locating plate, motor Component, cover, circuit installing plate, motor, connecting terminal, relay, idler wheel, pivoted arm, microswitch, left fork, is answered at line outlet Position magnet steel, dead axle A, support arm, switch press plate, remote, dead axle B, right shift fork；Pedestal is connected with beam barrel, and front axle is housed on beam barrel It holds, rear bearing, and is combined with axis；One end of axis equipped with detection plate, spring, the other end equipped with pull-fork assembly, locating plate, axis with It is clearance fit between pull-fork assembly；Pull-fork assembly be by left fork, reset magnet steel, dead axle A, support arm, switch press plate, it is remote, Dead axle B, right shift fork are constituted, and a reset magnet steel is fixedly mounted in the end of left shift fork, and the end of right axle shift fork is installed by holder Another resets magnet steel, and two magnet steel answer polarity attracting.

Electric machine assembly is connected with pedestal, and table pedestal is connected with cover.

Equipped with microswitch, connecting terminal, pivoted arm, idler wheel on electric machine assembly.

The advantages of the utility model is with effect：

The utility model shift fork axle is unified with detection axis, and microswitch is assemblied in a fixation with circuit, driving motor Wiring board on, microswitch operating point is in the axle center of detection axis, and when there is material impact to detection plate, detection plate is by stopband Dynamic shift fork action makes reset magnet steel act therewith, and magnet steel switch speed is fast, and stability is high, avoids the object caused by material impact Position meter dead unit problem, improves the sensitivity of instrument.The damage caused by instrument is also avoided simultaneously, improves the reliable of instrument Property, safety and anti-seismic performance.

Description of the drawings

Fig. 1 is the utility model level meter overall structure diagram；

Fig. 2 is the K direction views of Fig. 1；

Fig. 3 is electric machine assembly front view；

Fig. 4 is the left view of Fig. 3；

Fig. 5 is the rearview of Fig. 3；

Fig. 6 is the front view of the utility model；

Fig. 7 is the left view of Fig. 6.

In figure：1, detection plate；2, spring；3, axis；4, seal rubber sleeve；5, annular knurl cap；6, fore bearing；7, beam barrel；8, it installs Standby cap；9, locking nut；10, pedestal；11, rear bearing；12, pull-fork assembly；13, locating plate；14, electric machine assembly；15, outlet Mouthful；16, cover；17, circuit installing plate；18, motor；19, connecting terminal；20, relay；21, idler wheel；22, pivoted arm；23, micro- Dynamic switch；24, left fork；25, magnet steel is resetted；26, dead axle A；27, support arm；28, switch press plate；29, remote；30, right shift fork； 31, dead axle B.

Specific implementation mode

The utility model is described in detail in illustrated embodiment below in conjunction with the accompanying drawings.

The utility model resistance shifting formula level meter motor 18 is connected with pedestal, and pedestal 10 is connected with beam barrel 7, is equipped on beam barrel 7 It bearing 11 and is combined with axis 3 after fore bearing 6.One end of axis 3 is equipped with pull-fork assembly equipped with detection plate 1, spring 2 etc., the other end 12 locating plates 13 are clearance fit between axis 3 and pull-fork assembly 12, can freely be transported along axis 3.Table pedestal is connected with cover 16, Equipped with microswitch 23, connecting terminal 19, pivoted arm 22, idler wheel 21 on electric machine assembly 14.One end is used equipped with fixed on 21 axis of idler wheel Pin.When motor 18 rotates, pivoted arm 22 is driven, pivoted arm 22 is driven pull-fork assembly 12 and swung centered on axis, to drive Detection plate 1 is swung, and when detection plate 1 detects that material is obstructed, detection plate 1 stops swinging, to make axis 3 stop operating, at this moment Motor 18 rotation make pivoted arm 22 oppress left shift fork 24 or right shift fork 30 rotate centered on axis 3 drive switch press plate 28 while answer Position magnet steel action, switch press plate 28 press microswitch 23 and send out level signals, and motor 18 stops operating, and has sent out material signal. When material position declines, 1 resistance of detection plate disappears, and resetting magnet steel 25 makes pull-fork assembly 12 reset, 23 alarm release of microswitch, electricity The rotation of machine 18 makes detection plate 1 swing, and level meter starts to detect material position, and level meter completes a detection process at this time.

Embodiment 1：

The utility model resistance shifting formula level meter pedestal 10 and beam barrel 7 between tightened with screw thread after, then with locking nut 9 lock Tightly, make between both without relative motion.The both ends of beam barrel 7 are equipped with bearing 6,11, and making can be certainly between detection axis 3 and beam barrel 7 By rotating.Detection axis 3 is equipped with pull-fork assembly 12 in one end of gauge stand, and pull-fork assembly 12 can be freely rotated in detection axis 3.It is left With locating plate 13 and by resetting the position of magnet steel holding between the two between shift fork 24 and right shift fork 31, it is used in combination nut that will position The endoporus of piece 13 is inserted in detection axis 3, and should be securely without relative motion between them.The other end of detection axis 3 is equipped with fluid sealant Set 4, annular knurl cap 5 is sleeved on seal rubber sleeve 4, then seal rubber sleeve 4 is sleeved in detection axis 3 and annular knurl cap 5 is screwed in beam barrel 7 On, and tighten make it between without relative motion.Since rubber has certain toughness, can twist under the effect of external force.? Detection plate 1 is installed on the end of detection axis 3, plays a part of to detect material position.Electric machine assembly 14 is also equipped on pedestal 10, electricity Thermomechanical components 14 are by circuit installing plate 17, motor 18, connecting terminal 19, relay 20, idler wheel 21, pivoted arm 22,23 groups of microswitch At；It should be without relative motion between them.Idler wheel 21 on pivoted arm 22 is placed between left shift fork 24 and right shift fork 30, and can be at it In freely rotate and move.Be also equipped on pull-fork assembly 12 reset magnet steel 25, dead axle A26, support arm 27, switch press plate 28, Dead axle B31.One end of support arm 27 and one end axis pin riveted of switch press plate 28, switch press plate 28 dead axle A26 and left shift fork 24 rivet together, and the other end dead axle A26 of support arm 27 rivets together with right shift fork 30, and can be certainly between them By rotation.When motor 18 rotates, pivoted arm 22, pivoted arm 22 is driven to drive pull-fork assembly 12 and swung centered on axis, to Detection plate 1 is driven to swing, when detection plate 1 detects that material is obstructed, detection plate 1 stops swinging, to make axis 3 stop operating, At this moment motor 18 rotate make pivoted arm 22 oppress left shift fork 24 or right shift fork 30 rotate centered on axis 3 drive switch press plate 28 it is same Shi Fuwei magnet steel acts, and switch press plate 28 presses microswitch 23 and sends out level signals, and motor 18 stops operating.Material letter is sent out Number.When material position declines, 1 resistance of detection plate disappears, and resetting magnet steel 25 makes pull-fork assembly 12 reset, the alarm solution of microswitch 23 It removes, the rotation of motor 18 makes detection plate 1 swing, and level meter starts to detect material position, and level meter completes a detection process at this time.

Claims (1)

1. a kind of resistance resetted by magnet steel moves formula level meter, which is characterized in that the resistance shifting formula level meter includes detection plate （1）, spring（2）, axis（3）, seal rubber sleeve（4）, annular knurl cap（5）, fore bearing（6）, beam barrel（7）, installation standby cap（8）, locking screw It is female（9）, pedestal（10）, rear bearing（11）, pull-fork assembly（12）, locating plate（13）, electric machine assembly（14）, line outlet（15）, table Lid（16）, circuit installing plate（17）, motor（18）, connecting terminal（19）, relay（20）, idler wheel（21）, pivoted arm（22）, fine motion Switch（23）, left shift fork（24）, reset magnet steel（25）, dead axle A（26）, support arm（27）, switch press plate（28）, dead axle C（29）, it is right Shift fork（30）, dead axle B（31）；Pedestal（10）With beam barrel（7）Between tightened with screw thread after, then use locking nut（9）Locking, beam barrel （7）Both ends fore bearing is installed（6）And rear bearing（11）, detection axis（3）Pull-fork assembly is installed in one end of gauge stand （12）, left shift fork（24）With right shift fork（30）Between use locating plate（13）And by resetting magnet steel（25）Keep position between the two It sets, is used in combination nut by locating plate（13）Endoporus be inserted in axis（3）, axis（3）The other end seal rubber sleeve is installed（4）, by annular knurl Cap（5）It is sleeved on seal rubber sleeve（4）On, by seal rubber sleeve（4）It is sleeved on axis（3）It is upper and by annular knurl cap（5）It is screwed in beam barrel（7）On, Axis（3）End on detection plate is installed（1）, in pedestal（10）On be also equipped with electric machine assembly（14）, electric machine assembly（14）By Circuit installing plate（17）, motor（18）, connecting terminal（19）, relay（20）, idler wheel（21）, pivoted arm（22）, microswitch （23）Composition；Pivoted arm（22）On idler wheel（21）It is placed in left shift fork（24）With right shift fork（30）Between, in pull-fork assembly（12）On It is also equipped with reset magnet steel（25）, dead axle A（26）, support arm（27）, switch press plate（28）, dead axle B（31）；Support arm（27）One end with One end of switch press plate 28 axis pin riveted, switch press plate（28）With dead axle A（26）With left shift fork（24）It rivets together, and props up Arm（27）Other end dead axle A（26）With right shift fork（30）It rivets together.