CN102568740B - Flameproof electromagnet - Google Patents
Flameproof electromagnet Download PDFInfo
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- CN102568740B CN102568740B CN 201110446395 CN201110446395A CN102568740B CN 102568740 B CN102568740 B CN 102568740B CN 201110446395 CN201110446395 CN 201110446395 CN 201110446395 A CN201110446395 A CN 201110446395A CN 102568740 B CN102568740 B CN 102568740B
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Abstract
The invention provides a flameproof electromagnet which comprises a flameproof shell. The flameproof shell is internally provided with a cylindrical cavity; a coil assembly is arranged in the cylindrical cavity; the upper part of the flameproof shell is provided with a flameproof terminal box and a lug boss; the lug boss is provided with a groove; the bottom of the groove is communicated with thecylindrical cavity; sealant is poured into the groove; the flameproof terminal box covers the periphery of the lug boss; the opening of the groove of the lug boss is provided with a terminal plate; the terminal plate is provided with a terminal; and the terminal is connected with the lead of the coil assembly. Compared with a sealing ring, the flameproof electromagnet has low cost and good flameproof effect, is not easy to age and is not easy to fail to seal. The lead of the coil assembly can be directly led on the terminal, the terminal can be externally connected with a power cord, and the lead of the coil assembly can not be restricted in length and is hereby suitable for long-distance control and operation.
Description
Technical field:
The present invention relates to mechanical field, specifically is a kind of flameproof electromagnet.
Background technology:
At present, drop into the flameproof electromagnet of using and mainly have following problem: magnetic conductive tube and coil riveting are integrated, and are difficult for splitting, and electromagnet is connected by magnetic conductive tube with valve, if electromagnet damages or valve damages, just integral body is scrapped, maintenanceability is poor; Without headspace, power supply lead wire directly is connected on the coil block between flameproof enclosure and the explosion-proof connection box, draws from the product upper end, and the length of power line from product is made, just can't change, and is cumbersome; Only adopt the sealing ring sealing between flameproof enclosure and the explosion-proof connection box, work long hours down, sealing ring is easily aging, causes seal failure, and explosion insulation performance is poor; Alternating Current Power Supply can't directly be adopted without rectifying device in electromagnet inside therefore.
Summary of the invention:
The technical problem to be solved in the present invention is, overcomes existing technological deficiency, provides that a kind of maintenanceability is high, power supply lead wire can freely be determined length, explosion insulation performance is good, can directly adopt the flameproof electromagnet of Alternating Current Power Supply.
Technical solution of the present invention is, a kind of flameproof electromagnet is provided, in comprising, it is provided with the flameproof enclosure of cylindrical cavity, the cylindrical cavity of flameproof enclosure is in-built coil block, the top of described flameproof enclosure is equipped with explosion-proof connection box, a boss is established on the top of described flameproof enclosure, described boss is provided with a groove, described bottom land is communicated with the cylindrical cavity of flameproof enclosure, be perfused with fluid sealant in the described groove, described explosion-proof connection box cover on boss around, terminal board is equipped with at the notch place on the described boss, be provided with binding post on the described terminal board, described binding post is connected with the lead-in wire of coil block.
The side of described explosion-proof connection box is provided with fairlead, fairlead is communicated with the inner chamber of explosion-proof connection box, annular flame proof sealing ring is housed in the fairlead, and the inner of described flame proof sealing ring and the bottom of fairlead offset, and the power line tightened bolt presses is adopted in the outer end of flame proof sealing ring.Power line can directly pick out from binding post, extracts through fairlead, and fairlead is provided with the flame proof sealing ring with the pvc pipe contact sealing of power line, and adopts the power line tightened bolt presses, plays the flame proof effect.
Also be provided with the electronic rectifier device on the described terminal board, described binding post is electrically connected with the lead-in wire of coil block by the electronic rectifier device.Can the electronic rectifier device be set directly on terminal board, make the high-speed double electromagnet Alternating Current Power Supply.
Push rod, magnetic conductive tube, armature, hand push rod, guide pin bushing, capping also are housed in the endoporus of described coil block, push rod slides in the interior axial hole of magnetic conductive tube, move left and right during work, be used for opening spool, armature is contained in guide pin bushing, is used for promoting the push rod move left and right, the outer end of guide pin bushing is fixed one and is with externally threaded capping, after fastening nut is connected with this closure threads and the right side of flameproof enclosure offsets, and described hand push rod is contained in the axial hole of capping, promotes armature when being used for Installation and Debugging.Adopting this structure magnetic conductive tube is removable the connection with coil block, turns fastening nut during dismounting, can easily magnetic conductive tube be separated with coil block, simple to operation, convenient care and maintenance in the future.
On described flameproof electromagnet and the installed surface that hydraulic valve body is connected alignment pin is housed also, accurately locates when being used for being connected with hydraulic valve body.Can prevent effectively that electromagnet from producing radial rotary and movement, uses more reliable.
The junction of described explosion-proof connection box and boss also is provided with an O RunddichtringO.This sealing ring is located at the flame proof gap location of explosion-proof connection box and flameproof enclosure, realizes effective waterproof action, and the security reliability of product is improved.
The position that is connected with closure threads on the side of described fastening nut has a tapped through hole, and holding screw is installed in this tapped through hole for preventing that fastening nut and capping are loosening.
On described flameproof electromagnet and the installed surface that hydraulic valve body is connected magnetic conductive tube expose the end around be provided be used to the 2nd O RunddichtringO that prevents hydraulic valve body and intraluminal oil liquid leakage.
The end surface that exposes of described magnetic conductive tube is provided with the external screw thread that matches for the internal thread with hydraulic valve body.Adopt this structure, the connection between magnetic conductive tube and the hydraulic valve body is also adopted and is threaded, if between electromagnet or the valve body parts damages are arranged like this, can directly change parts, has reduced electromagnet and has scrapped the loss that causes because of integral body.
After adopting said structure, flameproof electromagnet is provided with a cavity for encapsulating by groove between explosion-proof connection box and flameproof enclosure, between explosion-proof connection box and flameproof enclosure, adopt the form sealing of perfusion fluid sealant, compared with adopting the sealing ring sealing, cost is low, difficult aging, sealing is difficult for losing efficacy, and flame proof is effective.And be that the lead-in wire of coil block is directly drawn on binding post, binding post is circumscripted power line again, can not limit wire length, suitable at a distance control and operation.
Description of drawings:
Accompanying drawing is the structural representation of flameproof electromagnet of the present invention.
As shown in the figure: 1, flameproof enclosure, 2, coil block, 3, explosion-proof connection box, 4, boss, 5, groove, 6, fluid sealant, 7, terminal board, 8, binding post, 9, fairlead, 10, flame proof sealing ring, 11, the power line fastening bolt, 12, push rod, 13, magnetic conductive tube, 14, armature, 15, hand push rod, 16, guide pin bushing, 17, capping, 18, fastening nut, 19, installed surface, 20, alignment pin, the 21, the one O RunddichtringO, the 22, the 2nd O RunddichtringO, 23, external screw thread, 24, holding screw, the 25, the 3rd O RunddichtringO, the 26, the 4th O RunddichtringO.
Embodiment:
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
As shown in the figure, the invention provides a kind of flameproof electromagnet, in comprising, it is provided with the flameproof enclosure 1 of cylindrical cavity, the profile of flameproof enclosure 1 is cuboid, the cylindrical cavity of flameproof enclosure 1 is in-built coil block 2, the top of described flameproof enclosure 1 is equipped with explosion-proof connection box 3, a boss 4 is established on the top of described flameproof enclosure 1, described boss 4 end faces are provided with a groove 5,5 ends of described groove, be communicated with the cylindrical cavity of flameproof enclosure 1, the lead-in wire of coil block 2 can outwards be drawn from groove 5, be perfused with fluid sealant 6 in the described groove 5, be used for cylindrical cavity and extraneous sealing with flameproof enclosure 1, described explosion-proof connection box 3 cover on boss 4 around, terminal board 7 is equipped with at 5 mouthfuls of places of groove on the described boss 4, terminal board 7 is installed on the boss 4 by screw, is provided with binding post 8 on the described terminal board 7, and described binding post 8 is connected with the lead-in wire of coil block 2, the lead-in wire that is about to coil block 2 is guided on the binding post 8, and power line can pick out from binding post 8 like this.
The side of described explosion-proof connection box 3 is provided with fairlead 9, fairlead 9 is communicated with the inner chamber of explosion-proof connection box 3, annular flame proof sealing ring 10 is housed in the fairlead 9, the bottom of the inner of described flame proof sealing ring 10 and fairlead 9 offsets, and the outer end of flame proof sealing ring 10 adopts power line fastening bolt 11 to compress.Because the general outer PVC sleeve pipe that is surrounded by of power line, can with the inner surface close contact of flame proof sealing ring, play sealing function, power line fastening bolt 11 compresses the flame proof sealing rings, plays explosion-proof.Generally between power line fastening bolt 11 and flame proof sealing ring 10, the zero diopter packing ring is housed also, prevents that power line fastening bolt 11 from damaging flame proof sealing ring 10 by pressure.
Also be provided with electronic rectifier device (not shown) on the described terminal board 7, described binding post 8 is electrically connected by the lead-in wire of electronic rectifier device with coil block 2.The electronic rectifier device can be contained in terminal board 7 below, can to after the external AC rectification for flameproof electromagnet.
On the installed surface that is connected with hydraulic valve body 19 of described flameproof electromagnet alignment pin 20 is housed also, accurately locates when being used for being connected with hydraulic valve body.Alignment pin 20 protrudes from the installed surface 19, play the guiding role when being connected with hydraulic valve body, can accurately locate.
Described explosion-proof connection box 3 also is provided with an O RunddichtringO 21 with the junction of boss 4.This sealing ring is located at the flame proof gap location of explosion-proof connection box and flameproof enclosure, realizes effective waterproof action, and the security reliability of product is improved.
The position that is threaded with capping 17 on the side of described fastening nut 18 has a tapped through hole, and holding screw 24 is installed in this tapped through hole and is used for preventing fastening nut 18 and capping 17 both are loosening.When holding screw 24 tightens, withstand the external screw thread in the capping 17, both are loosening to prevent fastening nut 18 and capping 17.
On the installed surface that is connected with hydraulic valve body 19 of described flameproof electromagnet magnetic conductive tube 13 expose the end around be provided be used to the 2nd O RunddichtringO 22 that prevents hydraulic valve body and intraluminal oil liquid leakage.
The end surface that exposes of described magnetic conductive tube 13 is provided with the external screw thread 23 that matches for the internal thread with hydraulic valve body.Magnetic conductive tube 13 is threaded with hydraulic valve body by external screw thread 23.
Claims (8)
1. flameproof electromagnet, in comprising, it is provided with the flameproof enclosure (1) of cylindrical cavity, the cylindrical cavity of flameproof enclosure (1) is in-built coil block (2), the top of described flameproof enclosure (1) is equipped with explosion-proof connection box (3), it is characterized in that: a boss (4) is established on the top of described flameproof enclosure (1), described boss (4) is provided with a groove (5), described groove (5) end, be communicated with the cylindrical cavity of flameproof enclosure (1), the lead-in wire of coil block (2) is outwards drawn from groove (5), be perfused with fluid sealant (6) in the described groove (5), between explosion-proof connection box (3) and flameproof enclosure (1), adopt the form sealing of perfusion fluid sealant (6), described explosion-proof connection box (3) cover on boss (4) around, terminal board (7) is equipped with at groove (5) on the described boss (a 4) mouthful place, be provided with binding post (8) on the described terminal board (7), described binding post (8) is connected with the lead-in wire of coil block (2), power line picks out from binding post (8), the side of described explosion-proof connection box (3) is provided with fairlead (9), fairlead (9) is communicated with the inner chamber of explosion-proof connection box (3), annular flame proof sealing ring (10) is housed in the fairlead (9), the bottom of the inner of described flame proof sealing ring (10) and fairlead (9) offsets, and the outer end of flame proof sealing ring (10) adopts power line fastening bolt (11) to compress.
2. flameproof electromagnet according to claim 1, it is characterized in that: described terminal board also is provided with the electronic rectifier device on (7), and described binding post (8) is electrically connected by the lead-in wire of electronic rectifier device with coil block (2).
3. flameproof electromagnet according to claim 1, it is characterized in that: push rod (12) also is housed in the endoporus of described coil block (2), magnetic conductive tube (13), armature (14), hand push rod (15), guide pin bushing (16), capping (17), push rod (12) slides in the interior axial hole of magnetic conductive tube (13), move left and right during work, be used for opening spool, armature (14) is contained in guide pin bushing (16), be used for promoting push rod (12) move left and right, the outer end of guide pin bushing (16) is fixed one and is with externally threaded capping (17), after fastening nut (18) is threaded with this capping (17) and the right side of flameproof enclosure (1) offsets, described hand push rod (15) is contained in the axial hole of capping (17), promotes armature (14) when being used for Installation and Debugging.
4. flameproof electromagnet according to claim 1 is characterized in that: on the installed surface that is connected with hydraulic valve body (19) of described flameproof electromagnet alignment pin (20) is housed also, accurately locates when being used for being connected with hydraulic valve body.
5. flameproof electromagnet according to claim 1 is characterized in that: described explosion-proof connection box (3) also is provided with an O RunddichtringO (21) with the junction of boss (4).
6. flameproof electromagnet according to claim 3, it is characterized in that: the position that is threaded with capping (17) on the side of described fastening nut (18) has a tapped through hole, and holding screw (24) is installed in this tapped through hole and is used for preventing fastening nut (18) and capping (17) both become flexible.
7. flameproof electromagnet according to claim 3, it is characterized in that: on the installed surface that is connected with hydraulic valve body (19) of described flameproof electromagnet, magnetic conductive tube (13) expose the end around be provided be used to the 2nd O RunddichtringO (22) that prevents hydraulic valve body and intraluminal oil liquid leakage.
8. flameproof electromagnet according to claim 3, it is characterized in that: the end surface that exposes of described magnetic conductive tube (13) is provided with the external screw thread (23) that matches for the internal thread with hydraulic valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110446395 CN102568740B (en) | 2011-12-28 | 2011-12-28 | Flameproof electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110446395 CN102568740B (en) | 2011-12-28 | 2011-12-28 | Flameproof electromagnet |
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| Publication Number | Publication Date |
|---|---|
| CN102568740A CN102568740A (en) | 2012-07-11 |
| CN102568740B true CN102568740B (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110446395 Active CN102568740B (en) | 2011-12-28 | 2011-12-28 | Flameproof electromagnet |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244678A (en) * | 2013-05-17 | 2013-08-14 | 艾通电磁技术（昆山）有限公司 | Sealing structure of electromagnet |
| CN109524193B (en) * | 2018-11-30 | 2024-02-20 | 宁波市鄞州通力液压电器厂 | Explosion-proof electromagnet device |
| CN113421739B (en) * | 2021-06-23 | 2022-08-19 | 上海巨良电磁阀制造有限公司 | Electromagnetic coil explosion-proof shell with protection grade IP65 and highest surface temperature T6 |
| CN114017533A (en) * | 2021-11-05 | 2022-02-08 | 中煤科工集团重庆研究院有限公司 | Series explosion-proof electromagnet |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038299U (en) * | 1988-12-09 | 1989-05-24 | 陕西直线电机机械设备公司 | Explosion-proof cylindrical d.c. generator |
| CN2157366Y (en) * | 1993-05-17 | 1994-02-23 | 南通市机床电器厂 | Electromagnetic valve of explosion isolation |
| CN2906227Y (en) * | 2006-04-21 | 2007-05-30 | 宁波星箭航天机械厂 | Through type explosion proof solenoid valve for use of natural gas |
| CN201354879Y (en) * | 2009-03-05 | 2009-12-02 | 上海巨良电磁阀制造有限公司 | Explosion-proof solenoid valve with explosion-proof junction box |
| CN101949471A (en) * | 2010-09-02 | 2011-01-19 | 苏州协昌环保科技有限公司 | Explosionproof electromagnetic pulse valve assembly |
| CN201910308U (en) * | 2010-12-16 | 2011-07-27 | 郑州煤矿机械集团股份有限公司 | Intrinsic safety type double-station electromagnet for environment with explosive gas |
| CN202434283U (en) * | 2011-12-28 | 2012-09-12 | 宁波市鄞州通力液压电器厂 | Explosion-proof electromagnet |
-
2011
- 2011-12-28 CN CN 201110446395 patent/CN102568740B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038299U (en) * | 1988-12-09 | 1989-05-24 | 陕西直线电机机械设备公司 | Explosion-proof cylindrical d.c. generator |
| CN2157366Y (en) * | 1993-05-17 | 1994-02-23 | 南通市机床电器厂 | Electromagnetic valve of explosion isolation |
| CN2906227Y (en) * | 2006-04-21 | 2007-05-30 | 宁波星箭航天机械厂 | Through type explosion proof solenoid valve for use of natural gas |
| CN201354879Y (en) * | 2009-03-05 | 2009-12-02 | 上海巨良电磁阀制造有限公司 | Explosion-proof solenoid valve with explosion-proof junction box |
| CN101949471A (en) * | 2010-09-02 | 2011-01-19 | 苏州协昌环保科技有限公司 | Explosionproof electromagnetic pulse valve assembly |
| CN201910308U (en) * | 2010-12-16 | 2011-07-27 | 郑州煤矿机械集团股份有限公司 | Intrinsic safety type double-station electromagnet for environment with explosive gas |
| CN202434283U (en) * | 2011-12-28 | 2012-09-12 | 宁波市鄞州通力液压电器厂 | Explosion-proof electromagnet |
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| CN102568740A (en) | 2012-07-11 |
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Inventor after: Liu Xiaolin Inventor after: Chen Hualin Inventor after: Chen Xiaoqi Inventor before: Chen Hualin |
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