CN103900657A - Moving-resistant level gage allowing connection line to be separated from shifting fork assembly - Google Patents
Moving-resistant level gage allowing connection line to be separated from shifting fork assembly Download PDFInfo
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- CN103900657A CN103900657A CN201410156051.3A CN201410156051A CN103900657A CN 103900657 A CN103900657 A CN 103900657A CN 201410156051 A CN201410156051 A CN 201410156051A CN 103900657 A CN103900657 A CN 103900657A
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- microswitch
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- 125000006850 spacer group Chemical group 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 12
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000011343 solid material Substances 0.000 abstract description 2
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 24
- 230000033001 locomotion Effects 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 7
- 230000035939 shock Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention provides a moving-resistant level gage allowing a connection line to be separated from a shifting fork assembly, and relates to a solid material level gage. A motor (18) is connected with a base (10) which is connected with a beam barrel (7), and the beam barrel (7) is provided with a front bearing (6) and a rear bearing (11) and combined with a shaft (3); one end of the shaft (3) is provided with a detection board (1), the other end of a spring (2) is provided with the shifting fork assembly (12) and a locating sheet (13), and the shaft (3) is in clearance fit with the shifting fork assembly (12); a gage base (12) is connected with a gage cover (16), and a motor assembly (14) is provided with a microswitch (23), a terminal (19), a rotary arm (22) and idler wheels (21). The moving-resistant level gage structurally avoids accidents caused by breaking off of a side line, and is simple in structure and low in cost, and a level switch controlled automatically is particularly in common use of upper limit and lower limit alarm of feeding bins in the industries of chemical engineering, metallurgy, mines, road building, grain, environment protection and the like.
Description
Technical field
The present invention relates to a kind of solid-state level-sensing device, particularly relate to the resistance that a kind of line separates with pull-fork assembly and move formula level-sensing device.
Background technology
Resistance moves the level gauging of formula level-sensing device for solid material, has various models, and function approaches, but it is more complicated that existing resistance moves formula level-sensing device structure, complex structure initiating failure probability is just high, and cost is high, the applicant has carried out respectively constantly improving for this reason, and has successively applied for Chinese patent, as:
CN2053330U patent, this level meter has adopted piston type reciprocal transmission system.Between axle and casing, with a seal sealing, the dust in feed bin is isolated with the kinematic train of level meter.Can be in the very large environment of feed bin dust reliability service, realize thing position and control.Patent of invention ZL 93 1 11021.1 swing types that applicant declares for 93 years are in addition measured the instrument of level of granular of powder materials, have solved the isolating problem of instrument lubricating system and material; The recovery of the oscillation system shift fork of instrument itself is by spring, and material falls to the impact of instrument being had to buffer action, the damage of having avoided material impact to cause instrument.
But, through actual feedback, find two serious shortcomings: the one, switch is by shift fork, and switch leads swings with system, causes that lead-in wire fractures; The 2nd, it is not one that shift fork action axle and system detect axle, widely different at the action sensitivity of the left and right of swing detection both direction.
Patent of invention ZL that applicant declared in 93 years 93 1 11021.1 swing types measure level of granular of powder materials instrument one, solved the isolating problem of instrument lubricating system and material; The recovery of the oscillation system shift fork of its two instrument itself also has an advantage by spring, and material falls to the impact of instrument being had to buffer action, the damage of having avoided material impact to cause instrument.But also find four each and every one serious shortcomings: the one, switch is by shift fork, and switch leads swings with system, causing that lead-in wire fractures; It two is that microswitch major part is to use under AC220V condition, and lead-in wire and switch go wrong Instrument use safety and personal safety are also had to hidden danger; It three is that shift fork action axle is not one with system detection axle, the action axle of two shift forks is also separately independently, action moment is with to be arranged on pivoted arm position relationship on motor shaft very large, and the action elastic force of microswitch itself produces moment to declutch shift shaft, cause at the action sensitivity of the left and right of swing detection both direction widely different.Its four be microswitch on one-sided shift fork, add pin problem, cause resistance to shock undesirable.
The oscillating detection material level instrument (ZL 2 0012543.0) of declaring for 2007 has solved the problem of switch leads, but the problem of sensitivity does not still solve, and lose the second advantage of 93 years patents of invention, often damaged by material impact, (shift fork of the swing of the present invention and invention in 93 years is two-way opening-closing structure, opening and closing movement by shift fork drives microswitch, therefore there is buffer action.And the shift fork of 2007 inventions is fixed sturctures, the action of switch is obstructed by check-out console, impels motor body to reverse to drive microswitch, there is no opening and closing movement, does not also just cushion; Motor hangs by copper sheathing, and motor body is fixing, resistance to shock bad (many feed bins for blanking Vib. will be installed), the sensitivity difference of both direction also larger (with within 93 years, invent have similar), the manufacturability of manufacture neither be fine.
The oscillating detection material level instrument ZL 2 0012543.0 that applicant declares for 2007 has solved the problem of switch leads, but the problem of sensitivity does not still solve, but also often damaged by material impact, the shift fork that the ZL 93 1 11021.1 of invention in 93 years swings is two-way opening-closing structure, opening and closing movement by shift fork drives microswitch, therefore there is buffer action.And ZL 2 0012543.0 shift forks of 2007 inventions are fixed sturctures, the action of switch is obstructed by check-out console, and drive motor body reverses to drive microswitch, there is no opening and closing movement, does not also just cushion) manufacture also more complicated.
So current level-sensing device is high and cost is high by complex structure initiating failure probability, and its switch connection and pull-fork assembly easily to cause level-sensing device malfunctioning.
Summary of the invention
The resistance that the object of the present invention is to provide a kind of line to separate with pull-fork assembly moves formula level-sensing device, in this level-sensing device structure, avoid due to the sideline accident causing that fractures, and level-sensing device is simple in structure, cost is low, as the level switch of robotization control be common to especially chemical industry, metallurgy, mine, build the road, the upper and lower limit of the industry feeding bin such as grain and environmental protection reports to the police.
The object of the invention is to be achieved through the following technical solutions:
The resistance that line separates with pull-fork assembly moves a formula level-sensing device, and described resistance moves formula level meter and comprises that check-out console, spring, axle, seal rubber sleeve, annular knurl cap, front bearing, beam barrel, installation are for cap, set nut, base, rear bearing, fork assembly, spacer, electric machine assembly, line outlet, table cover, circuit installing plate, motor, connection terminal, relay, roller, pivoted arm, microswitch, left fork, back-moving spring, dead axle A, support arm, switch press plate, remote, dead axle B, right fork; Motor is connected with base, and base is connected with beam barrel, front bearing, rear bearing is housed on beam barrel and combines with axle; Check-out console is equipped with in one end of axle, the spring other end is equipped with fork assembly, spacer, between axle and fork assembly, is clearance fit; Table base is connected with table cover, and microswitch is housed on electric machine assembly., connection terminal, pivoted arm, roller.
The resistance that described a kind of line separates with pull-fork assembly moves formula level-sensing device, described motor connects armshaft, and armshaft connects fork assembly and check-out console, and pivoted arm connects left fork or right fork, connecting valve pressing plate back-moving spring centered by axle, switch press plate is provided with microswitch.
The resistance that described a kind of line separates with pull-fork assembly moves formula level-sensing device, and described fork assembly is arranged on axle, and check-out console is housed on axle.
The resistance that described a kind of line separates with pull-fork assembly moves formula level-sensing device, and described roller shaft one end is equipped with the pin of fixing use.
Advantage of the present invention and effect are:
1. the turning axle of two shift forks in the present invention left and right is all same detection axle, the shift fork bearing pin of the invention of 93 years and detection axle are integrated, two shift forks make the operating point of microswitch in detecting on the axis of axle by connecting rod, microswitch just can maintain static, solve the problem that lead-in wire rotates with pull-fork assembly, reliability is improved;
2. two of left and right of the present invention shift fork has kept the structure of utilizing spring to recover, the damage of having avoided material impact to cause instrument;
3. declutch shift shaft of the present invention and the unification that detects axle, the distance that makes motor shaft and detect between axle strengthens, and pivoted arm Randomness of position is reduced greatly on the impact of sensitivity, and because the axle center of microswitch operating point in declutch shift shaft, its elasticity does not produce counter torque, has improved the sensitivity of instrument;
4. microswitch of the present invention and circuit, drive motor, appliance circuit are all assemblied on a fixing circuit board, good manufacturability and its product quality improves; Because microswitch is fixed, lead-in wire is motionless again, and pull-fork assembly population equilibrium has improved electricity consumption reliability, security performance and the resistance to shock of instrument.
Brief description of the drawings
Fig. 1 is level-sensing device one-piece construction schematic diagram of the present invention;
Fig. 2 is that the K of Fig. 1 is to view;
Fig. 3 is electric machine assembly front view;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the rear view of Fig. 3;
Fig. 6 is pull-fork assembly front view of the present invention;
Fig. 7 is the left view of Fig. 6.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the invention will be further described.
This resistance move formula level meter be by 1, check-out console; 2, spring; 3, axle; 4, seal rubber sleeve; 5, annular knurl cap; 6, front bearing; 7, beam barrel; 8, standby cap is installed; 9, set nut; 10, base; 11, rear bearing; 12, fork assembly; 13, spacer; 14, electric machine assembly; 15, line outlet; 16, table cover; 17, circuit installing plate; 18, motor; 19, connection terminal; 20, relay; 21, roller; 22, pivoted arm; 23, microswitch; 24, left fork; 25, back-moving spring; 26, dead axle A; 27, support arm; 28, switch press plate; Remote 29, dead axle B; 30, right fork; 31, the parts such as bearing pin composition.
Motor 18 is connected with base 10, and base 10 is connected with beam barrel 7, front bearing 6 rear bearings 11 is housed on beam barrel 7 and combines with axle 3.One end of axle 3 is equipped with the other end such as check-out console 1, spring 2 fork assembly 12 spacers 13 is housed, and between axle 3 and fork assembly 12, is clearance fit.Can freely rotate along axle 3.Table base 10 is connected with table cover 16, and microswitch 23, connection terminal 19, pivoted arm 22, roller 21 are housed on electric machine assembly 14.On roller 21 axles, one end is equipped with the pin of fixing use.In the time that motor 18 rotates, drive armshaft 22, armshaft 22 drives fork assembly 12 and swings centered by axle, thereby drive check-out console 1 to swing, in the time that check-out console 1 detects that material is obstructed, check-out console 1 stops swinging, thereby axle 3 is stopped operating, at this moment motor 18 rotate make pivoted arm 22 oppress left fork 24 or right fork 30 rotates drive switch press plate 28 centered by axle 3 time back-moving spring 25 stretch, switch press plate 28 presses microswitch 23 and sends material level signal, motor 18 stops operating.Send material signal.In the time that material level declines, check-out console 1 resistance disappears, and back-moving spring 25 resets fork assembly 12, microswitch 23 alarm release, and motor 18 rotates check-out console 1 is swung, and level-sensing device starts to detect material level, and now level-sensing device completes a testing process.Rotated and driven pivoted arm 22 to rotate by motor 18, thereby drive fork assembly 12 to swing, fork assembly 12 is arranged on axle 3.Thereby the pendulum of fork assembly 12 has driven the rotation of axle 3, and check-out console 1 is housed on axle 3, check-out console swings with axle 3 object that reaches detection.
Embodiment 1:
After the present invention resistance moves and tightens with screw thread between the base 10 of formula level-sensing device and beam barrel 7, then lock with set nut 9, make it between the two without relative motion.The two ends of beam barrel 7 are provided with bearing 6,11, make to detect between axle 3 and beam barrel 7 free to rotate.Detect axle 3, in one end of gauge stand, pull-fork assembly 12 is installed, pull-fork assembly 12 can freely rotate on detection axle 3.Between left shift fork 25 and right shift fork 31, keeps position between the two with spacer 13 and with extension spring, and the endoporus of spacer 13 is inserted in to detection axle 3 with nut, and should be firmly without relative motion between them.The other end that detects axle 3 is provided with seal rubber sleeve 4, and annular knurl cap 5 is enclosed within on seal rubber sleeve 4, then seal rubber sleeve 4 is enclosed within and detects on axle 3 and annular knurl cap 5 is screwed on beam barrel 7, and tighten, and makes between it without relative motion.Because rubber has certain toughness, can under the effect of external force, twist. on the termination of detecting axle 3, check-out console 1 is installed, works to detect material level.
Electric machine assembly 14 is also installed on base 10, and electric machine assembly 14 is made up of circuit installing plate 17, motor 18, connection terminal 19, relay 20, roller screw 21, roller 22, pivoted arm 23, microswitch 24; On circuit installing plate 17, on fixing motor 18, be equipped with pivoted arm 23, between them without relative motion. roller 22 use roller screws 21 are screwed on pivoted arm 23, and roller 22 should freely rotate on roller screw. fixing on circuit installing plate 17 also have microswitch 24, connection terminal 19, relay 20.
Roller on pivoted arm 23 22 is placed between left shift fork and right shift fork, and can rotates freely therein and move.
Back-moving spring 26, dead axle A27, support arm 28, switch press plate 29, dead axle B30, bearing pin 32 are also housed on fork assembly 12.Support arm 28 use dead axle A27 and left shift fork 25 rivet together, and support arm 28 can freely rotate on dead axle A27.Bearing pin 32 riveteds for one end of the other end of support arm 28 and switch press plate 29, can rotate between them freely.Switch press plate 29 use dead axle B30 and right shift fork 31 riveteds, and can freely rotate between them.
In the time that motor 18 rotates, drive armshaft 23, armshaft 23 drives fork assembly 12 to swing centered by detecting axle 3, thereby drive check-out console 1 to swing, in the time that check-out console 1 is subject to material resistance, check-out console 1 stops swinging, thereby making to detect axle 3 stops operating, at this moment motor 18 rotates and makes pivoted arm 23 oppress left fork 25(or right fork 31) centered by detecting axle 3, rotate, when driving switch press plate 29, back-moving spring 26 stretches, switch press plate 29 presses microswitch 24 and sends material level signal, and motor 18 stops operating.Send material signal.
In the time that material level declines, check-out console 1 resistance disappears, and back-moving spring 26 resets fork assembly 12, microswitch 24 alarm release, and motor 18 rotates check-out console 1 is swung, and level-sensing device starts to detect material level, and now level-sensing device completes a testing process.
Rotated and driven pivoted arm 23 to rotate by motor 18, thereby drive fork assembly 12 to swing, fork assembly 12 is arranged on and detects on axle 3.Thereby the pendulum of fork assembly 12 has driven the rotation that detects axle 3, detects on axle 3 check-out console 1 is housed, check-out console swings with detecting axle 3 object that reaches detection.
Claims (4)
1. the resistance that a line separates with pull-fork assembly moves formula level-sensing device, it is characterized in that, described resistance moves formula level meter and comprises check-out console (1), spring (2), axle (3), seal rubber sleeve (4), annular knurl cap (5), front bearing (6), beam barrel (7), standby cap (8) is installed, set nut (9), base (10), rear bearing (11), fork assembly (12), spacer (13), electric machine assembly (14), line outlet (15), table cover (16), circuit installing plate (17), motor (18), connection terminal (19), relay (20), roller (21), pivoted arm (22), microswitch (23), left fork (24), back-moving spring (25), dead axle A(26), support arm (27), switch press plate (28), remote (29), dead axle B(30), right fork (31), motor (18) is connected with base (10), and base (10) is connected with beam barrel (7), front bearing (6), rear bearing (11) is housed on beam barrel (7) and combines with axle (3), check-out console (1) is equipped with in one end of axle (3), spring (2) other end is equipped with fork assembly (12), spacer (13), clearance fit between axle (3) and fork assembly (12), table base (10) is connected with table cover (16), and electric machine assembly (14) is equipped with microswitch (23), connection terminal (19), pivoted arm (22), roller (21).
2. the resistance that a kind of line according to claim 1 separates with pull-fork assembly moves formula level-sensing device, it is characterized in that, described motor (18) connects armshaft (22), armshaft (22) connects fork assembly (12) and check-out console (1), pivoted arm (22) connects left fork (24) or right fork (30), connecting valve pressing plate (28) back-moving spring (25) centered by axle (3), switch press plate (28) is provided with microswitch (23).
3. the resistance that a kind of line according to claim 1 separates with pull-fork assembly moves formula level-sensing device, it is characterized in that, it is upper that described fork assembly (12) is arranged on axle (3), and check-out console (1) is housed on axle (3).
4. the resistance that a kind of line according to claim 1 separates with pull-fork assembly moves formula level-sensing device, it is characterized in that, described roller (21) axle one end is equipped with the pin of fixing use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156051.3A CN103900657B (en) | 2014-04-18 | 2014-04-18 | The resistance that a kind of line with pull-fork assembly separate moves formula level-sensing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156051.3A CN103900657B (en) | 2014-04-18 | 2014-04-18 | The resistance that a kind of line with pull-fork assembly separate moves formula level-sensing device |
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| Publication Number | Publication Date |
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| CN103900657A true CN103900657A (en) | 2014-07-02 |
| CN103900657B CN103900657B (en) | 2017-06-16 |
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| CN201410156051.3A Active CN103900657B (en) | 2014-04-18 | 2014-04-18 | The resistance that a kind of line with pull-fork assembly separate moves formula level-sensing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535133A (en) * | 2014-12-23 | 2015-04-22 | 张家港市新华化工机械有限公司 | Material level detection device of centrifugal machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU546785A1 (en) * | 1975-05-08 | 1977-02-15 | Всесоюзный Научно-Исследовательский Конструкторско-Технологический Институт По Машинам Для Комплексной Механизации И Автоматизации Животноводческих Ферм | Bulk Level Detector |
| CN2053330U (en) * | 1989-05-19 | 1990-02-21 | 杜国凯 | Physical position gauge |
| CN1082709A (en) * | 1993-04-03 | 1994-02-23 | 杜国凯 | Swing type is measured the instrument of powder shot-like particle position |
| CN1186223A (en) * | 1996-12-26 | 1998-07-01 | 杨贵水 | Level three dimension hand-pull positioning switch |
| CN201041504Y (en) * | 2007-06-08 | 2008-03-26 | 杜国凯 | Oscillating detection material level instrument |
| CN201266104Y (en) * | 2008-09-03 | 2009-07-01 | 万荣辉 | Temperature-resistant overpressure-resistant sealing mechanical shock-resisting level indicator |
| CN102455202A (en) * | 2010-10-27 | 2012-05-16 | 孙会民 | Swing resistance object position meter |
| CN203798410U (en) * | 2014-04-18 | 2014-08-27 | 杜国凯 | Resistance changeable level gage with separated connection wire and shifting fork component |
-
2014
- 2014-04-18 CN CN201410156051.3A patent/CN103900657B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU546785A1 (en) * | 1975-05-08 | 1977-02-15 | Всесоюзный Научно-Исследовательский Конструкторско-Технологический Институт По Машинам Для Комплексной Механизации И Автоматизации Животноводческих Ферм | Bulk Level Detector |
| CN2053330U (en) * | 1989-05-19 | 1990-02-21 | 杜国凯 | Physical position gauge |
| CN1082709A (en) * | 1993-04-03 | 1994-02-23 | 杜国凯 | Swing type is measured the instrument of powder shot-like particle position |
| CN1186223A (en) * | 1996-12-26 | 1998-07-01 | 杨贵水 | Level three dimension hand-pull positioning switch |
| CN201041504Y (en) * | 2007-06-08 | 2008-03-26 | 杜国凯 | Oscillating detection material level instrument |
| CN201266104Y (en) * | 2008-09-03 | 2009-07-01 | 万荣辉 | Temperature-resistant overpressure-resistant sealing mechanical shock-resisting level indicator |
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| CN203798410U (en) * | 2014-04-18 | 2014-08-27 | 杜国凯 | Resistance changeable level gage with separated connection wire and shifting fork component |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535133A (en) * | 2014-12-23 | 2015-04-22 | 张家港市新华化工机械有限公司 | Material level detection device of centrifugal machine |
| CN104535133B (en) * | 2014-12-23 | 2018-08-28 | 张家港市新华化工机械有限公司 | A kind of material-level detecting device of centrifuge |
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| Publication number | Publication date |
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| CN103900657B (en) | 2017-06-16 |
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Effective date of registration: 20171211 Address after: The two section of Liaoyang city of Liaoning Province, 111050 South Street Patentee after: Liaoyang Development Zone Instrument Co., Ltd. Address before: No. 45, No. 5, east culture Road, Baita District, Liaoyang, Liaoning Patentee before: Du Guokai |