CN102568740A - Flameproof electromagnet - Google Patents
Flameproof electromagnet Download PDFInfo
- Publication number
- CN102568740A CN102568740A CN2011104463954A CN201110446395A CN102568740A CN 102568740 A CN102568740 A CN 102568740A CN 2011104463954 A CN2011104463954 A CN 2011104463954A CN 201110446395 A CN201110446395 A CN 201110446395A CN 102568740 A CN102568740 A CN 102568740A
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- flame
- proof
- type electromagnet
- proof type
- flameproof
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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 the cylindrical 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 flame-proof type electromagnet.
Background technology:
At present, drop into the flame-proof type electromagnet of using and mainly have following problem: magnetic conductive tube and coil riveting are one, are difficult for splitting, and electromagnet is connected through magnetic conductive tube with valve, if electromagnet damages or valve damages, just integral body is scrapped, and maintenanceability is poor; Do not have headspace between flameproof enclosure and the explosion-proof connection box, power supply lead wire directly is connected on the coil block, draws from the product upper end, and the length of power line is processed from product, 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, the sealing ring easy ageing causes seal failure, and explosion insulation performance is poor; Therefore the inner no rectifying device of electromagnet can't directly adopt Alternating Current Power Supply.
Summary of the invention:
The technical problem that the present invention will solve is, overcomes existing technological deficiency, and the flame-proof type electromagnet that a kind of maintenanceability is high, power supply lead wire can freely be confirmed length, explosion insulation performance is good, can directly adopt Alternating Current Power Supply is provided.
Technical solution of the present invention is, a kind of flame-proof type electromagnet is provided, and is provided with the flameproof enclosure of cylindrical cavity in it comprises; In the cylindrical cavity of flameproof enclosure coil block is housed, the top of said flameproof enclosure is equipped with explosion-proof connection box, and a boss is established on the top of said flameproof enclosure; Said boss is provided with a groove, and said bottom land is communicated with the cylindrical cavity of flameproof enclosure, is perfused with fluid sealant in the said groove; Said explosion-proof connection box cover on boss around; Terminal board is equipped with at notch place on the said boss, and said terminal board is provided with binding post, and said binding post is connected with the lead-in wire of coil block.
The side of said 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 said 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 pvc pipe contact seal of flame proof sealing ring with 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 said terminal board, said binding post is electrically connected with the lead-in wire of coil block through 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, manually push rod, guide pin bushing, capping also are housed in the endoporus of said coil block, and push rod slides in the axial hole in the magnetic conductive tube, move left and right during work; Be used to open spool, armature is contained in guide pin bushing, is used to promote the push rod move left and right; Externally threaded capping is with in the outer end of guide pin bushing fixing; Fastening nut is connected back and flameproof enclosure with this closure threads right side offsets, and said manual 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 said flame-proof type electromagnet and the installed surface that hydraulic valve body is connected alignment pin is housed also, accurately locatees when being used for being connected with hydraulic valve body.Can prevent effectively that electromagnet from producing radially rotates and moves, and uses more reliable.
The junction of said 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 safety of products reliability is improved.
The position that is connected with closure threads on the side of said fastening nut has a tapped through hole, and holding screw is installed in and is used to prevent that fastening nut and capping are loosening in this tapped through hole.
On said flame-proof type electromagnet and the installed surface that hydraulic valve body is connected magnetic conductive tube expose the end around be provided with the 2nd O RunddichtringO that is used to prevent hydraulic valve body and intraluminal oil liquid leakage.
The end surface that exposes of said magnetic conductive tube is provided with and is used for the external screw thread that the internal thread with hydraulic valve body matches.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; The flame-proof type electromagnet between explosion-proof connection box and flameproof enclosure through groove be provided with one be used for encapsulating cavity; The form sealing of employing perfusion fluid sealant between explosion-proof connection box and flameproof enclosure, 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 control at a distance and operation.
Description of drawings:
Accompanying drawing is the structural representation of flame-proof type 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, the flame proof sealing ring, 11, the power line fastening bolt; 12, push rod, 13, magnetic conductive tube, 14, armature, 15, manual push rod, 16, guide pin bushing; 17, capping, 18, fastening nut, 19, installed surface, 20, alignment pin, the 21, the one O RunddichtringO; 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:
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
As shown in the figure, the present invention provides a kind of flame-proof type electromagnet, is provided with the flameproof enclosure 1 of cylindrical cavity in it comprises; The profile of flameproof enclosure 1 is a cuboid, and coil block 2 is housed in the cylindrical cavity of flameproof enclosure 1, and the top of said flameproof enclosure 1 is equipped with explosion-proof connection box 3; A boss 4 is established on the top of said flameproof enclosure 1, and said boss 4 end faces are provided with a groove 5, and 5 ends of said groove are communicated with the cylindrical cavity of flameproof enclosure 1; The lead-in wire of coil block 2 can outwards be drawn from groove 5, is perfused with fluid sealant 6 in the said groove 5, is used for cylindrical cavity and extraneous sealing with flameproof enclosure 1; Said explosion-proof connection box 3 cover on boss 4 around, terminal board 7 is equipped with at 5 mouthfuls of places of the groove on the said boss 4, terminal board 7 is installed on the boss 4 through screw; Said terminal board 7 is provided with binding post 8; Said binding post 8 is connected with the lead-in wire of coil block 2, and 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 said 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 said 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.Owing to be surrounded by the PVC sleeve pipe outside power line is general, can closely contact with the inner surface of flame proof sealing ring, play sealing function, power line fastening bolt 11 compresses the flame proof sealing ring, 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 said terminal board 7, said binding post 8 is electrically connected with the lead-in wire of coil block 2 through the electronic rectifier device.The electronic rectifier device can be contained in terminal board 7 below, can use supplying the flame-proof type electromagnet behind the external AC rectification.
Push rod 12, magnetic conductive tube 13, armature 14, manually push rod 15, guide pin bushing 16, capping 17 also are housed in the endoporus of said coil block 2, and magnetic conductive tube 13 can adopt welding with guide pin bushing 16, compress etc., and mode is fixed, and push rod 12 slides in the interior axial hole of magnetic conductive tube 13; Move left and right during work; Be used to open spool, armature 14 is contained in guide pin bushing 16, is used to promote push rod 12 move left and right; Externally threaded capping 17 is with in the outer end of guide pin bushing 16 fixing; Adopt 26 sealings of the 4th O RunddichtringO between capping 17 and the guide pin bushing 16, the right side with flameproof enclosure 1 after fastening nut 18 is threaded with this capping 17 offsets, and adopts 25 sealings of the 3rd O RunddichtringO between fastening nut 18 and the flameproof enclosure 1; Said manual push rod 15 is contained in the axial hole of capping 17, promotes armature 14 when being used for Installation and Debugging.
On the installed surface that is connected with hydraulic valve body 19 of said flame-proof type electromagnet alignment pin 20 is housed also, accurately locatees when being used for being connected with hydraulic valve body.Alignment pin 20 protrudes on the installed surface 19, play the guiding role when being connected with hydraulic valve body, can accurately locate.
Said 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 safety of products reliability is improved.
The position that is threaded with capping 17 on the side of said fastening nut 18 has a tapped through hole, and holding screw 24 is installed in and is used to prevent fastening nut 18 and capping 17 in this tapped through hole 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 said flame-proof type electromagnet magnetic conductive tube 13 expose the end around be provided with the 2nd O RunddichtringO 22 that is used to prevent hydraulic valve body and intraluminal oil liquid leakage.
The end surface that exposes of said magnetic conductive tube 13 is provided with and is used for the external screw thread 23 that the internal thread with hydraulic valve body matches.Magnetic conductive tube 13 is threaded with hydraulic valve body through external screw thread 23.
Claims (9)
1. flame-proof type electromagnet; Be provided with the flameproof enclosure (1) of cylindrical cavity in it comprises, coil block (2) is housed in the cylindrical cavity of flameproof enclosure (1), the top of said 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 said flameproof enclosure (1); Said boss (4) is provided with a groove (5), and said groove (5) end is communicated with the cylindrical cavity of flameproof enclosure (1), is perfused with fluid sealant (6) in the said groove (5); Said explosion-proof connection box (3) cover on boss (4) around; Terminal board (7) is equipped with at groove (5) on the said boss (a 4) mouthful place, and said terminal board (7) is provided with binding post (8), and said binding post (8) is connected with the lead-in wire of coil block (2).
2. flame-proof type electromagnet according to claim 1; It is characterized in that: the side of said 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), and the bottom of the inner of said 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.
3. flame-proof type electromagnet according to claim 1 is characterized in that: said terminal board also is provided with the electronic rectifier device on (7), and said binding post (8) is electrically connected with the lead-in wire of coil block (2) through the electronic rectifier device.
4. flame-proof type electromagnet according to claim 1; It is characterized in that: push rod (12), magnetic conductive tube (13), armature (14), manually push rod (15), guide pin bushing (16), capping (17) also are housed in the endoporus of said coil block (2); Push rod (12) slides in the axial hole in the magnetic conductive tube (13), and move left and right during work is used to open spool; Armature (14) is contained in guide pin bushing (16); Be used to promote push rod (12) move left and right, externally threaded capping (17) is with in the outer end of guide pin bushing (16) fixing, and the right side with flameproof enclosure (1) after fastening nut (18) is threaded with this capping (17) offsets; Said manual push rod (15) is contained in the axial hole of capping (17), promotes armature (14) when being used for Installation and Debugging.
5. flame-proof type electromagnet according to claim 1 is characterized in that: on the installed surface that is connected with hydraulic valve body (19) of said flame-proof type electromagnet alignment pin (20) is housed also, accurately locatees when being used for being connected with hydraulic valve body.
6. flame-proof type electromagnet according to claim 1 is characterized in that: said explosion-proof connection box (3) also is provided with an O RunddichtringO (21) with the junction of boss (4).
7. flame-proof type electromagnet according to claim 4; It is characterized in that: the position that is threaded with capping (17) on the side of said fastening nut (18) has a tapped through hole, and holding screw (24) is installed in and is used to prevent fastening nut (18) and capping (17) in this tapped through hole both are loosening.
8. flame-proof type electromagnet according to claim 4 is characterized in that: the installed surface that is connected with hydraulic valve body (19) of said flame-proof type electromagnet go up magnetic conductive tube (13) expose the end around be provided with the 2nd O RunddichtringO (22) that is used to prevent hydraulic valve body and intraluminal oil liquid leakage.
9. flame-proof type electromagnet according to claim 4 is characterized in that: the end surface that exposes of said magnetic conductive tube (13) is provided with and is used for the external screw thread (23) that the internal thread with hydraulic valve body matches.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102568740A true CN102568740A (en) | 2012-07-11 |
| CN102568740B CN102568740B (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110446395 Active CN102568740B (en) | 2011-12-28 | 2011-12-28 | Flameproof electromagnet |
Country Status (1)
| Country | Link |
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| CN (1) | CN102568740B (en) |
Cited By (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 |
| CN109524193A (en) * | 2018-11-30 | 2019-03-26 | 宁波市鄞州通力液压电器厂 | A kind of explosion prevention electromagnet device |
| CN113421739A (en) * | 2021-06-23 | 2021-09-21 | 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 |
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| 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 |
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| 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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| 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 |
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Cited By (5)
| 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 |
| CN109524193A (en) * | 2018-11-30 | 2019-03-26 | 宁波市鄞州通力液压电器厂 | A kind of explosion prevention electromagnet device |
| CN109524193B (en) * | 2018-11-30 | 2024-02-20 | 宁波市鄞州通力液压电器厂 | Explosion-proof electromagnet device |
| CN113421739A (en) * | 2021-06-23 | 2021-09-21 | 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 |
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|---|---|
| CN102568740B (en) | 2013-10-16 |
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