CN104779115A - Visual magnetically-controlled switch - Google Patents
Visual magnetically-controlled switch Download PDFInfo
- Publication number
- CN104779115A CN104779115A CN201510143260.9A CN201510143260A CN104779115A CN 104779115 A CN104779115 A CN 104779115A CN 201510143260 A CN201510143260 A CN 201510143260A CN 104779115 A CN104779115 A CN 104779115A
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- CN
- China
- Prior art keywords
- magnetic switch
- tongue tube
- switch
- wire
- visual
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
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- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention relates to a visual magnetically-controlled switch. The visual magnetically-controlled switch comprises an outer tube, two reed switches and leads, wherein the outer tube is a transparent organic glass tube with two ends sealed, and the outer tube is filled with epoxy resin; the two reed switches are connected with the leads respectively and mutually connected in the outer tube. The switch has the inner visual performance and can perform visual operation, so that the switch state is distinguished more conveniently, and hidden danger is discovered more directly; the switch is free of rust, easy to dismount and high in seal and waterproof performance and has very high applicability to severe environments of shafts under mines; the magnetizing range is wide, the detection accuracy and the action sensitivity are high, and the detection error probability is greatly decreased; the switch is simple to produce, short in molding cycle and low in production cost.
Description
Technical field
The invention belongs to electrical control equipment field, be specifically related to a kind of visual type magnetic switch be applied in mine hoisting system.
Background technology
Magnetic switch, also known as proximity switch or dry-reed tube switch, take tongue tube as critical piece, magnetic induction force is utilized to drive tongue tube sheet electric shock folding, realize the automatically controlled circuit section of leading to control, be widely used in the stroke in electrical control, position monitoring is monitored, it is little that it has volume compared to early stage limit switch, lightweight, life-span is long, contact no-spark, there are the features such as anti-loading impact capacity is strong, functional reliability is very high, it is a kind of contactless totally-enclosed sense switch, market product kind is more, use mainly as proximity transducer, at household electrical appliances, automobile, communication, industry, medical treatment, the fields such as security protection are widely applied.
The core component of magnetic switch is tongue tube, is a kind of special key of magnetosensitive.The operation principle of tongue tube is very simple, the magnetizable reed of two panels end points place overlap, is sealed in glass tube, and distance only about several micron that two reeds are separated, is filled with highly purified inert gas in glass tube.Tongue tube operation principle is as follows: as at magnet close to tongue tube not constantly, two panels reed does not contact, and uses universal instrument resistance grade to detect discovery and is in off-state; Use magnet near tongue tube, additional magnetic field makes to produce different polarity near two panels reed endpoint location, and the reed of result two panels opposed polarity will be attracted each other and close, and universal instrument measures it for on-state.
Magnetic switch is applied widely in industrial and mining enterprises' electrical control, employ a large amount of magnetic switchs in Mei Gang major and minor well elevator system to realize the monitoring of cage parking spot, fangs, In-pot Car Retarder motion detection, the monitoring of skip bucket deceleration point and loading and unloading executive component state-detection etc., main based on ABB product, it is stable whether its dependable performance directly affects elevator system, major and minor well lifting electric-control system belonged to the key basic switch executive component of widespread adoption.
Find in Long-Time Service with actual maintenance:
1, on market, magnetic switch adopts metal or opaque plastics shell encapsulation completely, inner tongue tube state and position not visible, can not intuitively observe, made troubles in installation, adjustment, correcting switch position, must instrumentation or test at the scene repeatedly adjust, with determine final fixed position and on off state whether normal, bring very big inconvenience to maintenance installation, what unavoidably have influence on that main body produces is in order smooth and easy simultaneously.
2, the available existing magnetic switch product in most market, has certain limitation to environment for use.Its Comparision in the operational environment of normal ground is reliable and stable, but because material, technique, cause for quality then exist more drawback under specific condition.For my ore deposit, subsurface environment is moister, and especially shaft in wall infiltration is serious in drenching with rain, and the poor switch fault rate of sealing is higher, installs and uses rear discovery adaptability not enough.
3, the perishable oxidation of the magnetic switch of metal outer package, causes magnetic induction force to weaken, and sensitivity declines and even lost efficacy.Conventional metals standing screw is long-term easy-to-rust after installing, once fault dismounting and change very not easily, task difficulty is wasted time and energy greatly; Metal shell is easily magnetized by magnetic for a long time simultaneously, causes switch seriously easily to cause misoperation because of remanent magnetism, can only scrap.Then there is anti-extrusion problem of impacting deficiency in the product of partly plastic shell encapsulation.
4, existing market provides the ripe magnetic switch product that can supply type selecting, consider for control cost of manufacture and reduction manufacture difficulty, whole employing inside only encapsulates single tongue tube mode, therefore ubiquity is little by magnetic scope, detecting distance is short, the hidden danger of unique dry-reed tube switch contact action inefficacy or error detection can not effectively be prevented, once inner only single tongue tube damages, the problem of the necessary integral replacing of fault, so the relative usage life-span is short, reliability is not enough.
5, single switch cost is higher, and procurement price is expensive.As the single market price of ABB import magnetic switch reaches 5000 ~ 7000 yuan, and domestic magnetic switch price is also at about 1500 yuan/, high failure rate causes frequent replacing, enterprise's repair and maintenance cost is brought to remain high, for my unit, before adopting the present invention, monthly in magnetic switch project, namely consumable material cost is thousands of at least, tens thousand of at most, bring very large pressure to the production and operation of enterprise falling in this throttling.
6, choosing market similar products, to there is delivery cycle long, large area equipment magnetic switch is carried out to the production unit of electric automatic control, the equipment fault stage occurred frequently is subject to the limited impact of depot spare part recoverable amount unavoidably, certainly will restrict for the normal production run of industrial and mining enterprises by it.
Therefore, developing one can intuitive judgment tongue tube operate condition, and the applicability under the particular surroundingss such as mine is strong, and working stability and magnetic switch with low cost is those skilled in the art institute urgent need to solve the problem.
Summary of the invention
For solving the problem, the invention discloses one can intuitive judgment tongue tube operate condition, and the applicability under the particular surroundingss such as mine is strong, and working stability and magnetic switch with low cost.
In order to achieve the above object, the invention provides following technical scheme:
A kind of visual type magnetic switch, comprises outside shell, tongue tube and wire; Outside shell is transparent organic glass pipe, and two ends seal, and its inside is filled with epoxy resin; The quantity of tongue tube is two, is connected to wire, and be connected be located in exterior tube shell.
The invention provides a kind of visual type magnetic switch, be made up of outside shell, tongue tube and wire.
Outside shell in the present invention selects transparent organic glass pipe, the present invention is made to possess exclusive interior visible performance, realize inner member visual, Installation and Debugging and maintenance magnetic switch can intuitively observe inner member position and even state, repeatedly adjust without the need to using meter specially measurement or scene, accomplish visualized operation, realize on off state and differentiate that easier, hidden danger finds more intuitively, to have filled up art technology blank.And the anti-extrusion performance of transparent organic glass pipe is comparatively strong, not easily broken damage.Avoid the problem that metal shell easily produces remanent magnetism and easy-to-rust at solution old metal shell rapid wear simultaneously, and there is diamagnetism interference feature little, that non-corroding is easy to assemble and water-tight performance is strong forever, for mine down-hole pit shaft adverse circumstances, there is very strong applicability.And the inside of transparent organic glass pipe is filled with epoxy resin, epoxy resin has fabulous insulation property, need not cause line short possibility in transparent organic glass pipe, and can play fixing effect to the tongue tube of inside.
As preferably, tongue tube adopts in parallel or series connection; And two tongue tubes are that dislocation is put.
Adopt unique serial/parallel connection technology of built-in double dry-reed pipe in the present invention, what substantially increase magnetic switch is subject to magnetic scope and accuracy of detection, and be active in one's movements height, detects error probability and obviously reduces; Double dry-reed pipe is in parallel or series connection can be selected according to actual needs; Adopt series system to be provided with to help system monitoring abundant safety guarantee is provided, higher by magnetic Reliability of Microprocessor; Adopt and connected mode is installed and then can be avoided going alone reed pipe and damages the phenomenon that must change, two-in-parallel loop is detected and then can be extended switch useful life, reduces detection workload and material spare parts cost.And two tongue tubes adopt dislocation to put, and are beneficial to and increase induction detection range, contribute to providing sensitivity and reliability.
As preferably, to be that sub-thread is soft mould cover line with wire, and wire is connected with tongue tube by electric iron welding.
In the present invention, wire selects that sub-thread is soft moulds cover line, and adopts electric iron to weld, and ensure that wire and tongue tube are connected firmly and do not loosen.
As preferably, one end of outside shell is sealed by rubber-covered single-coated foam, and the other end uses epoxy sealing.
The present invention uses rubber-covered single-coated foam to seal in one end of outside shell, the viscosity of rubber-covered single-coated foam is good, and the strong and difficult drop-off of contractility, the other end seals when using epoxy resin filling.
As preferably, tongue tube is also connected with light-emitting diode and current-limiting resistance by wire.
Tongue tube of the present invention also can connecting luminous diode and current-limiting resistance, makes magnetic switch possess state-indicating function; If Switching Power Supply is 24V, then corresponding selection 120 Ω resistance; If Switching Power Supply is 220V, then corresponding selection 80K Ω-120K Ω resistance, guarantees that tongue tube flows through light-emitting diode with low current after switching on power, and prevents light-emitting diode overcurrent from puncturing and burns.
As preferably, outside shell be externally connected to mounting base support; Mounting base support comprises plastic pipe clip and epoxy plate; Plastic pipe clip is U-shaped plastic pipe clip, and quantity is two, is linearly evenly installed on epoxy plate surface.
The present invention also can connect the mounting base support be made up of U-shaped plastic pipe clip and epoxy plate in the outside of outside shell, can use, make the present invention fixing more firm according to use field condition selectivity.
Compared with prior art, beneficial effect is in the present invention: (1) possesses interior visible performance, can accomplish visualized operation, and on off state is differentiated, and easier, hidden danger finds more directly perceived; (2) non-corroding and quick detachable, water-tight performance is strong forever, has extremely strong applicability for mine down-hole pit shaft adverse circumstances; (3) high by magnetic scope, accuracy of detection and action sensitivity, detect error probability and greatly reduce; (4) make simply, molding cycle is short; (5) cost of manufacture is cheap.
Accompanying drawing explanation
Structural representation when tongue tube adopts in parallel in Fig. 1, the present invention;
In Fig. 2, the present invention, tongue tube adopts structural representation when connecting;
The conspectus of tongue tube sending and receiving optical diode in parallel and current-limiting resistance in Fig. 3, the present invention;
The conspectus of tongue tube series connection light-emitting diode and current-limiting resistance in Fig. 4, the present invention;
Fig. 5, structural representation when the present invention outside is provided with installing floor board support.
Reference numerals list: outside shell 1, tongue tube 2, wire 3, rubber-covered single-coated foam 4, light-emitting diode 5, current-limiting resistance 6, plastic pipe clip 7, epoxy plate 8.
Embodiment
Below with reference to specific embodiment, technical scheme provided by the invention is described in detail, following embodiment should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.
Be illustrated in figure 1 structural representation when tongue tube adopts in parallel in the present invention, detect magnetic switch for elevator parking spot, prevent from can't detect and cause operation not normal; The present invention is a kind of visual type magnetic switch, comprises outside shell 1, tongue tube 2 and wire 3.
Outside shell 1 is transparent organic glass pipe, and its inside is filled with epoxy resin; One end of outside shell 1 is sealed by rubber-covered single-coated foam 4, and the other end uses epoxy sealing.
The quantity of tongue tube 2 is two, is connected to wire 3, and series connection is located in outside shell 1, and two tongue tubes 2 are put in dislocation.And as required, as shown in Figure 3, light-emitting diode 5 and current-limiting resistance 6 can be installed in the line additional, make magnetic switch possess state-indicating function.
Wire 3 is the soft cover line of moulding of sub-thread, and wire 3 is connected with tongue tube 2 by electric iron welding.
Be illustrated in figure 2 tongue tube in the present invention and adopt structural representation when connecting, reclaim for each horizontal fangs cage chair the magnetic switchs such as detection that put in place, guarantee that the situation of error detection initiation device security accident can not occur; The present invention is a kind of visual type magnetic switch, comprises outside shell 1, tongue tube 2 and wire 3.
Outside shell 1 is transparent organic glass pipe, and its inside is filled with epoxy resin; One end of outside shell 1 is sealed by rubber-covered single-coated foam 4, and the other end uses epoxy sealing.
The quantity of tongue tube 2 is two, is connected to wire 3, and parallel connection is located in outside shell 1, and two tongue tubes 2 are put in dislocation.And as required, as shown in Figure 4, light-emitting diode 5 and current-limiting resistance 6 can be installed in the line additional, make magnetic switch possess state-indicating function.
Wire 3 is the soft cover line of moulding of sub-thread, and wire 3 is connected with tongue tube 2 by electric iron welding.
As shown in Figure 5, outside shell 1 be externally connected to mounting base support; Mounting base support comprises plastic pipe clip 7 and epoxy plate 8; Plastic pipe clip 7 is U-shaped plastic pipe clip, and quantity is two, is linearly evenly installed on epoxy plate 8 surface.
Finally it should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and non-limiting technical scheme, those of ordinary skill in the art is to be understood that, those are modified to technical scheme of the present invention or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present invention.
Claims (6)
1. a visual type magnetic switch, is characterized in that: comprise outside shell (1), tongue tube (2) and wire (3); Described outside shell (1) is transparent organic glass pipe, and two ends seal, and its inside is filled with epoxy resin; The quantity of described tongue tube (2) is two, is connected to wire (3), and be connected be located in exterior tube shell (1).
2. a kind of visual type magnetic switch according to claim 1, is characterized in that: described tongue tube (2) adopts in parallel or series connection; And two tongue tubes (2) are put in dislocation.
3. a kind of visual type magnetic switch according to claim 1, is characterized in that: described wire (3) moulds cover line for sub-thread is soft, and wire (3) is connected with tongue tube (2) by electric iron welding.
4. a kind of visual type magnetic switch according to claim 1, is characterized in that: one end of described outside shell (1) is by rubber-covered single-coated foam (4) sealing, and the other end uses epoxy sealing.
5. a kind of visual type magnetic switch according to claim 1, is characterized in that: described tongue tube (2) is also connected with light-emitting diode (5) and current-limiting resistance (6) by wire (3).
6. a kind of visual type magnetic switch according to claim 1, is characterized in that: described outside shell (1) be externally connected to mounting base support; Described mounting base support comprises plastic pipe clip (7) and epoxy plate (8); Described plastic pipe clip (7) is U-shaped plastic pipe clip, and quantity is two, is linearly evenly installed on epoxy plate (8) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143260.9A CN104779115A (en) | 2015-03-30 | 2015-03-30 | Visual magnetically-controlled switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510143260.9A CN104779115A (en) | 2015-03-30 | 2015-03-30 | Visual magnetically-controlled switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104779115A true CN104779115A (en) | 2015-07-15 |
Family
ID=53620529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510143260.9A Pending CN104779115A (en) | 2015-03-30 | 2015-03-30 | Visual magnetically-controlled switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104779115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847190A (en) * | 2019-04-30 | 2020-10-30 | 南京梅山冶金发展有限公司 | Mine winder tail rope monitoring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86203064U (en) * | 1986-06-21 | 1987-02-25 | 黄振胜 | Three-proofing induction switch |
| JPH117874A (en) * | 1997-06-13 | 1999-01-12 | Japan New Machitsukusu Kk | Proximity switch |
| CN101055959A (en) * | 2006-04-14 | 2007-10-17 | 李建兴 | Overcurrent Reed Relays and Overcurrent Warning Sockets Containing This Relay |
| CN103662729A (en) * | 2013-12-09 | 2014-03-26 | 永城煤电控股集团有限公司 | Magnetic control deviation sensor of mine belt conveyor |
| CN204117965U (en) * | 2014-10-20 | 2015-01-21 | 佛山市川东磁电股份有限公司 | A kind of double dry-reed pipe magnetic approach switch |
-
2015
- 2015-03-30 CN CN201510143260.9A patent/CN104779115A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86203064U (en) * | 1986-06-21 | 1987-02-25 | 黄振胜 | Three-proofing induction switch |
| JPH117874A (en) * | 1997-06-13 | 1999-01-12 | Japan New Machitsukusu Kk | Proximity switch |
| CN101055959A (en) * | 2006-04-14 | 2007-10-17 | 李建兴 | Overcurrent Reed Relays and Overcurrent Warning Sockets Containing This Relay |
| CN103662729A (en) * | 2013-12-09 | 2014-03-26 | 永城煤电控股集团有限公司 | Magnetic control deviation sensor of mine belt conveyor |
| CN204117965U (en) * | 2014-10-20 | 2015-01-21 | 佛山市川东磁电股份有限公司 | A kind of double dry-reed pipe magnetic approach switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847190A (en) * | 2019-04-30 | 2020-10-30 | 南京梅山冶金发展有限公司 | Mine winder tail rope monitoring device |
| CN111847190B (en) * | 2019-04-30 | 2022-04-12 | 南京宝地梅山产城发展有限公司 | Mine winder tail rope monitoring device |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150715 |
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| RJ01 | Rejection of invention patent application after publication |