CN101409131B - Electro-magnet manual release apparatus for brake - Google Patents
Electro-magnet manual release apparatus for brake Download PDFInfo
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- CN101409131B CN101409131B CN2008100409056A CN200810040905A CN101409131B CN 101409131 B CN101409131 B CN 101409131B CN 2008100409056 A CN2008100409056 A CN 2008100409056A CN 200810040905 A CN200810040905 A CN 200810040905A CN 101409131 B CN101409131 B CN 101409131B
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Abstract
The invention relates to an electromagnet manual release device for a brake, belonging to the elevator technical field; the electromagnet manual release device comprises a shell, a release shaft, a central spring, a positioning screw, a position limiting screw and two groups of coils, iron cores, silencing pads, armatures and push rods with the same structure, wherein, the shell is a cylindrical symmetric structure, the position limiting screw is arranged in the center of the shell and clamped with the release shaft, the positioning screw is arranged in the center of the shell and tightly contacted with the release shaft, a first coil and a second coil are symmetrically arranged in the shell along the direction of a shaft line of the shell, the first coil and the second coil are connected with an external power supply in series, a first iron core and a second iron core are symmetrically fixedly arranged at the both ends of the shell, the central spring is arranged in the center in the shell, the two ends of the center spring are respectively arranged in spring holes which are arranged at the front ends of a first armature and a second armature, a first push rod and a second push rod are respectively press-fit with the first armature and the second armature and then sequentially penetrate the shell, the coils, the silencing pads and the iron cores. The electromagnet manual release device can effectively prevent the misoperation and is characterized by safety and convenience.
Description
Technical field
What the present invention relates to is a kind of device of elevator traction machine technical field, particularly a kind of electro-magnet manual release apparatus that is used for brake.
Background technology
Along with various lifting means in modern society application and further develop, the controlled of their safe operation and safe condition more and more comes into one's own.But, brake electromagnet on the tradition lifting means drive unit is equipped with the device of a manual releasing, because this device does not prevent the mechanism of random manual releasing, anyone can arbitrarily pull this hand release, cause drive unit to be in the free state of brakeless, drive unit can be because the imbalance of the quality of system own, make and be raised thing to the formed gravity direction motion of imbalance, this motion is in case form, its velocity variations will be determined by the terrestrial gravitation acceleration, just may cause lifting means out of control at short notice, may be under fast state with on or down the facility or the architecture noumenon at two ends bump against, cause equipment or personal injury.Therefore, for avoiding hand release, be badly in need of a kind of hand release that can prevent misoperation owing to misoperation causes accident.
Find through retrieval prior art, China utility model patent ZL2003201280280, Granted publication CN2808863, name is called: " a kind of electromagnetic brake structure that is applicable to 1: 1 anodontia traction machine drum brake of elevator ", this technology comprises: electromagnetic core, suction disc, the connecting rod that declutches, the eccentric crankshaft that declutches, electromagnet support ring, extension spring and compositions such as the handle that declutches, brake seat.When traction machine runs well, solenoid energising in the electromagnetic core, electromagnetic core and suction disc adhesive, the push rod on the suction disc backs down brake arm, and brake strip is separated with brake drum.When the solenoid dead electricity, the pressure of spring is pressed on the brake drum friction plate, thereby makes the traction sheave stop.But this technology is not forbidden the mechanism of random manual releasing, and anyone can arbitrarily pull the braking realization release of release lever to driving arrangement, just may cause some above-mentioned adverse consequences.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of electro-magnet manual release apparatus that is used for brake is provided, can effectively prevent misoperation, and have the characteristics of safe ready.
The present invention is achieved by the following technical solutions, the present invention includes: housing, discharge axle, central spring, dog screw, the coil of stop screw and two groups of same structures, unshakable in one's determination, the noise reduction liner, armature and push rod, wherein: housing is the cylinder symmetrical structure, stop screw is located at housing central authorities and clamping discharges axle, dog screw is located at housing central authorities and is closely contacted and discharges axle, first coil and second coil are installed in the housing along housing axis direction symmetry, first coil is connected external power source with second coil with series system, first iron core and second symmetry unshakable in one's determination are fixedly set in the housing two ends, central spring is located at enclosure interior central authorities, the two ends of central spring are contained in respectively in the spring eye of first armature and the second armature front end, first push rod and second push rod pass housing after being press-fitted with first armature and second armature respectively successively, coil, noise reduction liner and iron core.
Described first coil and second coil lay respectively at the centre of first armature and first iron core and second armature and second iron core and housing, and this coil is made by insulation framework, enamelled wire and insulating tape.
Described central spring has been executed thrust to first armature and second armature of both sides, the resetting and the adjustment of brake of convenient electromagnetic iron;
The described first noise reduction liner and the second noise reduction liner are located between first armature and first iron core respectively and between second armature and second iron core, the impact noise when being used to reduce the electromagnet operation.
Described release axle comprises: the oval cylinder of class, tapped through hole and cannelure, wherein class cylindroid body is positioned at and discharges the end that axle contacts with armature at housing, tapped through hole is positioned at the other end that discharges axle, be provided with cannelure at the middle part that discharges axle, be used for the clamping stop screw and closely contact with dog screw.
The oval cylinder width of described class is less than discharging shaft diameter.
Release lever also is housed on described tapped through hole, this release lever comprises: first external screw thread, driving end, through hole and second external screw thread, wherein first external screw thread is positioned at the lower end of release lever, be used for release lever is installed to the release axle, driving end is positioned at the release lever first externally threaded lower end and is used for fastening and loosens dog screw, the upper end that second external screw thread is positioned at release lever is used to install and fix handle ball, nearly second external screw thread of the body of rod one side that through hole is positioned at release lever is used to increase wrench torque, that is: insert thin bar in through hole, pulling thin bar can increase wrench torque.
Automatic release of the present invention and braking procedure are as follows: when coil electricity, can in housing, armature and iron core, produce electromagnetic circuit, between armature and iron core, produce electromagnetic force, if the braking moment that the moment that this electromagnetic force produces is brought greater than tripping spring, armature will drive push rod promotion brake arm and brake(-holder) block leaves braked wheel, realizes the release condition of brake.When coil blackout, the magnetic field diminishes in the electromagnet, the electromagnetic attraction between armature and the iron core does not also exist, and then tripping spring power drives brake(-holder) block and compresses braked wheel, realizes the on-position of brake.
The present invention holds out against the mode limit manual that discharges axle with dog screw and discharges brake, has only dog screw unscrewed and just can pull release lever and carry out manual releasing.Its manual releasing process is as follows: earlier release lever is back-outed, with the driving end of release lever head dog screw is unscrewed, then release lever is screwed in the release axle, can pull the manual releasing of release lever realization to the traction machine braked wheel.Behind end of operation, the hand gear of electromagnet must be recovered former state, that is: use the driving end locking positioning screw of release lever head, release lever being resetted to be installed to then discharges on the axle.
Compare with traditional hand release, the present invention has increased dog screw, discharges the rotation of axle with restriction, thereby limits random manual releasing, can effectively prevent to be in safe slave mode to guarantee lifting means because of arbitrarily discharging the accidental damage that the equipment of giving or passenger bring.
Description of drawings
Fig. 1 is a surface structure stereogram of the present invention;
Fig. 2 is a surface structure front view of the present invention;
Fig. 3 is the cutaway view of A-A slice location in the front view of the present invention;
Fig. 4 is the cutaway view of B-B slice location in the front view of the present invention;
Fig. 5 is release axle construction figure of the present invention;
Fig. 6 is a release lever structure chart of the present invention;
Fig. 7 the present invention is installed on the elevator machine brake schematic diagram.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment has provided detailed execution mode and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
As Fig. 1, Fig. 2 and shown in Figure 3, present embodiment comprises: handle ball 1, release lever 2, dog screw 3, discharge axle 4, stop screw 5, housing 6, first coil 7, first iron core 8, first armature 9, the first noise reduction liner 10, central spring 11, first push rod 12, screw 13, second push rod 14, second armature 15, second iron core 16, second coil 17 and the second noise reduction liner 31, wherein: housing 6 is the cylinder symmetrical structure, discharge 4 end that are positioned at outside the housing 6 and be provided with release lever 2, release lever 2 is provided with handle ball 1, dog screw 3, discharging axle 4 and stop screw 5 is installed in respectively on the housing 6, stop screw 5 clampings discharge axle 4 to be made it and can only rotate around discharging the axis direction to limit its position in housing 6, dog screw 3 holds out against release axle 4 and makes it and can not rotate with fixing positions that discharge axle 4, first coil 7 and second coil 17 are symmetricly set in housing 6 inside along the axis direction of housing 6, first coil 7 is connected external power source with second coil 17 with series system, first 8 and second 16 symmetries unshakable in one's determination unshakable in one's determination are fixedly set in housing 6 two ends, central spring 11 is located at housing 6 central interior, the two ends of central spring 11 are contained in respectively in the spring eye of first armature 9 and second armature, 15 front ends, first push rod 12 and second push rod 14 pass housing 6 after being press-fitted with first armature 9 and second armature 15 respectively successively, first coil 7, second coil 17, the first noise reduction liner 10, the second noise reduction liner 31, first 8 and second iron core 16 unshakable in one's determination.
Described first coil 7 and second coil 17 are to be made by insulation framework, enamelled wire and insulating tape etc.
Described central spring 11 has been executed outward thrust to first armature 9 and second armature 15 simultaneously, the resetting and the adjustment of brake of convenient electromagnetic iron.
The described first noise reduction liner 10 and the second noise reduction liner 31 are located between first armature 9 and first iron core 8 respectively and between second armature 15 and second iron core 16, the impact noise when being used to reduce the electromagnet operation.
Being mainly used in to get under the electric situation at present embodiment of the electromagnet that described coil, iron core and armature are formed provides release function.
As shown in Figure 4 and Figure 5, described release axle 4 comprises: tapped through hole 18, oval cylinder 19 of class and cannelure 20, wherein the oval cylinder 19 of class is positioned at and discharges axle 4 at housing 6, rotating the oval cylinders 19 of release axle 4 back classes contacts with second armature 15 with first armature 9, tapped through hole 18 is positioned at the other end that discharges axle 4, be used for fixing release lever 2, be provided with cannelure 20 at the middle part that discharges axle 4, be used for clamping stop screw 5, play restriction and discharged the effect that axle 4 can only rotate around its axle center, prevent from when manual releasing, to discharge axle 4 and be pulled out housing 6, closely contact with dog screw 3 more afterwards, played preventing to discharge the effect that axle 4 rotates.
The width of the oval cylinder 19 of described class is less than the diameter that discharges axle 4, and when rotating when discharging axle 4, the side opposite the angle of the oval cylinder 19 of class contacts and push open first armature 9 and second armature 15 simultaneously, realizes the manual releasing function.
As shown in Figure 6, be provided with first external screw thread 22 in the lower end of described release lever and be used for connecting release axle 4, be provided with second external screw thread 30 is used to install handle ball 1 and holds for the operator in the upper end of release lever 2, first external screw thread, 22 downsides are provided with driving end 21, the spanner that is used as dog screw 3 when manual releasing is to make things convenient for execute-in-place, the body of rod at release lever 2 is provided with through hole 29, and increasing wrench torque as need can insert thin bar in through hole 29, and pulling thin bar can increase wrench torque.
Described first external screw thread 22 is the M12 standard external, and described second external screw thread 30 is the M10 standard external, and described through hole 29 is Φ 6 diameter dimensions.
As shown in Figure 7, be installed on the schematic diagram of elevator brake for present embodiment, wherein: housing 6 is installed on the top of elevator traction machine braked wheel 26, and first push rod 12 contacts the adjustment bolt 23 on elevator brake brake arm 24 and the brake arm 28 respectively and adjusts bolt 27 with second push rod 14.
Present embodiment manual releasing process is as follows: dog screw 3 is unscrewed, pull release lever 2 and carry out manual releasing, promptly earlier release lever 2 is back-outed and discharged axle 4, with the driving end 21 of release lever 2 heads dog screw 3 is unscrewed again, then release lever 2 is screwed in release axle 4, can pull release lever 2 and realize manual releasing.Behind end of operation, operating personnel must recover former state with hand gear, use the driving end 21 locking positioning screws 3 of release lever 2 heads that is:, release lever 2 are installed to discharge on the axle 4 then.
Described brake mainly provides the braking of elevator traction machine and discharges two states: when electromagnet cuts off the power supply, the braking moment that tripping spring produces forces brake arm to drive brake(-holder) block and is pressed on the braked wheel, for elevator provides braking moment, realize the on-position of elevator.During the electromagnet energising, form electromagnetic circuit in housing in electromagnet, armature and the iron core, be to have produced electromagnetic attraction between armature and the iron core, during braking moment that the moment that produces when this electromagnetic attraction produces greater than tripping spring, armature drives push rod promotion brake arm drive brake(-holder) block and leaves braked wheel, and at this moment elevator is in release condition.
When elevator is in maintenance or emergency management and rescue state, there is not supply of electric power, provide release condition by the manual mode in the present embodiment for elevator brake this moment, so that maintenance or rescue personnel's implementation.
Claims (8)
1. electro-magnet manual release apparatus that is used for brake, it is characterized in that, comprise: housing, discharge axle, central spring, dog screw, the coil of stop screw and two groups of same structures, unshakable in one's determination, the noise reduction liner, armature and push rod, wherein: housing is the cylinder symmetrical structure, stop screw is located at housing central authorities and clamping discharges axle, dog screw is located at housing central authorities and is closely contacted and discharges axle, first coil and second coil are installed in the housing along housing axis direction symmetry, first coil is connected external power source with second coil with series system, first iron core and second symmetry unshakable in one's determination are fixedly set in the housing two ends, central spring is located at enclosure interior central authorities, the two ends of central spring are contained in respectively in the spring eye of first armature and the second armature front end, after first push rod and second push rod are press-fitted with first armature and second armature respectively, pass housing successively, coil, noise reduction liner and iron core, be provided with cannelure at the middle part that discharges axle, be used for the clamping stop screw, cannelure closely contacts with dog screw.
2. the electro-magnet manual release apparatus that is used for brake according to claim 1 is characterized in that described first coil is positioned at the centre of first armature, first iron core and housing, and described second coil is positioned at the centre of second armature, second iron core and housing.
3. the electro-magnet manual release apparatus that is used for brake according to claim 1 is characterized in that, described first coil and second coil are made by insulation framework, enamelled wire and insulating tape.
4. the electro-magnet manual release apparatus that is used for brake according to claim 1 is characterized in that, described central spring has been executed thrust to first armature and second armature of both sides.
5. the electro-magnet manual release apparatus that is used for brake according to claim 1, it is characterized in that, the first noise reduction liner and the second noise reduction liner are located between first armature and first iron core respectively and between second armature and second iron core, the impact noise when being used to reduce the electromagnet operation.
6. the electro-magnet manual release apparatus that is used for brake according to claim 1, it is characterized in that, described release axle comprises: the oval cylinder of class, tapped through hole and cannelure, wherein class cylindroid body is positioned at and discharges the end that axle contacts with armature at housing, tapped through hole is positioned at the other end that discharges axle, also is provided with release lever on tapped through hole.
7. the electro-magnet manual release apparatus that is used for brake according to claim 6 is characterized in that, the oval cylinder width of described class is less than discharging shaft diameter.
8. the electro-magnet manual release apparatus that is used for brake according to claim 6, it is characterized in that, described release lever comprises: first external screw thread, driving end, through hole and second external screw thread, wherein first external screw thread is positioned at the lower end of release lever, be used for release lever is installed to the release axle, driving end is positioned at the release lever first externally threaded lower end and is used for fastening and loosens dog screw, the upper end that second external screw thread is positioned at release lever is used to install and fix handle ball, and nearly second external screw thread of the body of rod one side that through hole is positioned at release lever is used to increase wrench torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100409056A CN101409131B (en) | 2008-07-24 | 2008-07-24 | Electro-magnet manual release apparatus for brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100409056A CN101409131B (en) | 2008-07-24 | 2008-07-24 | Electro-magnet manual release apparatus for brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101409131A CN101409131A (en) | 2009-04-15 |
| CN101409131B true CN101409131B (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100409056A Active CN101409131B (en) | 2008-07-24 | 2008-07-24 | Electro-magnet manual release apparatus for brake |
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| CN (1) | CN101409131B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196692B (en) * | 2013-04-11 | 2015-09-16 | 中国特种设备检测研究院 | A kind of releasing means of elevator test |
| CN104376953A (en) * | 2013-08-12 | 2015-02-25 | 广州市力琪金属制品有限公司 | Improved electromagnetic coil of novel assembly structure |
| CN110030299B (en) * | 2018-01-12 | 2021-02-23 | 比亚迪股份有限公司 | Drum brake and have its vehicle |
| CN115166584B (en) * | 2022-09-07 | 2022-12-09 | 国网辽宁省电力有限公司 | Storage battery leakage detection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004359371A (en) * | 2003-06-03 | 2004-12-24 | Sanyo Kogyo Kk | Manual release mechanism of clamper |
| CN2808863Y (en) * | 2003-12-17 | 2006-08-23 | 杭州航天万源稀土电机应用技术有限公司 | Drum type braking electromagnetic brake structure suitable for elevator 1:1 toothless drag machine |
| CN101034611A (en) * | 2007-01-26 | 2007-09-12 | 韩伍林 | Dual-axis-supported dual-push electromagnetic iron |
-
2008
- 2008-07-24 CN CN2008100409056A patent/CN101409131B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004359371A (en) * | 2003-06-03 | 2004-12-24 | Sanyo Kogyo Kk | Manual release mechanism of clamper |
| CN2808863Y (en) * | 2003-12-17 | 2006-08-23 | 杭州航天万源稀土电机应用技术有限公司 | Drum type braking electromagnetic brake structure suitable for elevator 1:1 toothless drag machine |
| CN101034611A (en) * | 2007-01-26 | 2007-09-12 | 韩伍林 | Dual-axis-supported dual-push electromagnetic iron |
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| CN101409131A (en) | 2009-04-15 |
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Address after: 201602 No.2, Xunye Road, Sheshan District, industrial zone, Songjiang District, Shanghai Patentee after: Tisheng elevator (Shanghai) Co.,Ltd. Address before: 201602 Shanghai City, Sheshan Songjiang Industrial Zone District Xunye Road No. 2 Patentee before: ThyssenKrupp Elevator (Shanghai) Co.,Ltd. |