CN201598074U - Block-type electromagnetic brake - Google Patents
Block-type electromagnetic brake Download PDFInfo
- Publication number
- CN201598074U CN201598074U CN2010201078829U CN201020107882U CN201598074U CN 201598074 U CN201598074 U CN 201598074U CN 2010201078829 U CN2010201078829 U CN 2010201078829U CN 201020107882 U CN201020107882 U CN 201020107882U CN 201598074 U CN201598074 U CN 201598074U
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- Prior art keywords
- armature disc
- brake
- block
- cam
- pressing plate
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Abstract
A block-type electromagnetic brake adopts the structure that an armature disc is connected with a sucking disc through an adjusting sleeve, a manual brake device is arranged on the armature disc, a brake boot is mounted on the sucking disc, a brake bush is arranged on the brake boot, coils are embedded into the armature disc, a plurality of springs are mounted inside the armature disc, and a microswitch magnifying mechanism is arranged above the armature disc. When in work, the brake directly acts on a brake wheel of a tractor, and dispenses with a lot of mechanisms, so that the compact of the brake becomes compact and the manufacturing cost is reduced; the coils are directly inserted into the armature disc of the block-type electromagnetic brake, and no coil frames are arranged between the coils and the armature disc, so that the magnetic flux loss is reduced, and the effective magnetic flux is increased; and once single spring breaks caused by emergencies, safe band-type brake can also be guaranteed due to the fact that a plurality of springs are arranged between the armature disc and the sucking disc. As the brake has a small stroke of 0.15 mm, the microswitch magnifying mechanism designed at the periphery of the brake can be utilized to magnify the stroke, the performance is safe and reliable, and the cost is reduced.
Description
Technical field
The invention relates to a kind of towing machine direct solenoid control setup that is used for elevator, weight-lifting equipment, is a kind of magnet stopper specifically.
Background technology
Hub type brake is a towing machine magnetic brake commonly used, and drg is worked with the brake control lever that links to each other and played the band-type brake effect, and its structural volume is huge, complex structure, cost height.And have only a main spring to occur potential safety hazard easily on the brake control lever, very inconvenient in using installation process.
Summary of the invention
In order to solve the problem of above-mentioned existence, the invention provides a kind of new-type drg of towing machine, and it can directly affact on the brake wheel of towing machine, and is simple in structure, and control is convenient, and is safe and reliable.
The purpose of the invention is achieved through the following technical solutions: block type electromagnetic brake, armature disc is connected by adjusting cover with sucker, on armature disc, be provided with the hands off device, the lock boots are installed on sucker, be provided with brake bush above the lock boots, it is characterized in that: be embedded with coil at armature disc, several springs are installed in armature disc, above armature disc, be provided with the micro-switch enlarger.
Described spring number is 4-50.
The micro-switch enlarger, comprise block, pressing plate, swing arm, swing jacking block, spring, micro-switch, swing jacking block, micro-switch are installed on the armature disc, block is installed on the sucker, pressing plate is installed on the block, between block and swing jacking block, be provided with swing arm, mounting spring between swing arm and the micro-switch.
The hands off device comprises steel ball, cam, open a sluice gate spanner, surface bearing, cam pressing plate, pull bar, steel ball is placed in the hole of armature disc, cam blocks steel ball and be fixed on the armature disc, and surface bearing is installed on the cam pressing plate, and the cam pressing plate is placed in the cam, pull bar passes cam, cam pressing plate, armature disc, sucker successively, and with nut cam and cam pressing plate is fixed on the armature disc.
The beneficial effect of the invention: said structure is adopted in the invention, the moving device of work schedule directly affacts on the brake wheel of towing machine, save a lot of mechanisms, compact conformation, reduce manufacturing cost, directly embed coil in the block type electromagnetic brake armature disc, do not have coil rack between coil and the armature disc, reduce flux loss, increase useful effect.A plurality of springs are arranged between armature disc and the sucker, and as burst accident, single spring breakage can not cause too big influence to drg, can also guarantee safety arrestment.Drg periphery design micro-switch enlarger, the stroke of drg itself is very little to have only 0.15mm, utilizes enlarger safe and reliable small stroke amplification, reduces the cost.
Description of drawings
Fig. 1 is the structural representation of block type electromagnetic brake;
Fig. 2 is a block type electromagnetic brake armature disc inner structure scheme drawing;
Fig. 3 is a micro-switch enlarger scheme drawing;
Fig. 4 is the partial enlarged drawing of hands off device among Fig. 1.
The specific embodiment
Block type electromagnetic brake, armature disc 1 is connected by adjusting cover 7 with sucker 3, lock boots 5 are installed on sucker 3, be provided with brake bush 6 above the lock boots 5, lock boots 5 are bonding with brake bush 6, are embedded with coil 2 at armature disc 1, several springs 4 are installed in armature disc 1, the number of spring 4 can be provided with 4-50 as required, and as shown in Figure 2: present embodiment is that 12 spring eyes 10 are set in armature disc, and 1 spring all is installed in each spring eye.On armature disc 1, be provided with hands off device 9, the structure of hands off device 9 as shown in Figure 4, comprise steel ball 17, cam 18, open a sluice gate spanner 19, surface bearing 20, cam pressing plate 21, pull bar 22, steel ball 17 are placed in the hole of armature disc, and cam 18 blocks steel ball 17 and be fixed on the armature disc 1, surface bearing 20 is installed on the cam pressing plate 21, cam pressing plate 21 is placed in the cam 18, and pull bar 22 passes cam 18, cam pressing plate 21, armature disc 1, sucker 3 successively, and with nut cam 18 and cam pressing plate 21 is fixed on the armature disc 1.Above armature disc 1, be provided with micro-switch enlarger 8, the structure of micro-switch enlarger 8 as shown in Figure 3, comprise block 11, pressing plate 12, swing arm 13, swing jacking block 14, micro-switch 15, spring 16, swing jacking block 14, micro-switch 15 is installed on the armature disc 1, block 11 is installed on the sucker 3, between block 11 and swing jacking block 14, be provided with swing arm 13, mounting spring 16 between swing arm 13 and the micro-switch 15, spring 16 resets swing arm 13, pressing plate 12 is installed on the block 11, upwards string is moving to prevent swing arm 13, during drg work, pressing plate 12 presses and is placed on the screw of installing on the swing arm 13 between block 11 and the swing jacking block 14, and swing arm 13 is stressed, the one end swing jacking block 14 of swing arm 13 is motionless, and the screw that the other end is placed touches micro-switch 15.This mechanism utilizes lever principle, utilizes the small action of sucker swing arm to amplify.
The principle of work of the invention: the drg energising, hot-wire coil 2 produces magnetic, and armature disc 1 is magnetized with sucker 3, armature disc and sucker adhesive, spring 4 is compressed, and lock boots 5, brake bush 6 are installed on the sucker 3, along with sucker 3 moves together, brake bush 6 breaks away from brake wheel, towing machine normal operation.During outage, because the material of drg own all is a soft-magnetic material, the instantaneous electromagnetic force that loses utilizes the spring force of drg itself to realize brake bush 6 brake sticking brakes.Simultaneously drg be provided with the micro-switch enlarger, can amplify the micro-stroke of drg itself, reduce performance requriements to micro-switch, the increase safety reduces the cost simultaneously.Hands off device 9 is used for the drg maintenance, and the power of opening a sluice gate of this device is easy to utilize and opens a sluice gate spanner less than 400N, realizes hands off.During hands off, move and open a sluice gate spanner 19, cam 18 rotates, and cam pressing plate 21 did not change with pull bar 22 when surface bearing 20 guaranteed the camshaft rotation.Steel ball 17 slides on the inclined-plane of cam 18, gap increase between armature disc 1 and the cam 18, and pull bar 22 and nut limiting distance, the slit reduces between armature disc 1 and the sucker 3, plays the effect opened a sluice gate.
Claims (4)
1. block type electromagnetic brake, armature disc is connected by adjusting cover with sucker, on armature disc, be provided with the hands off device, the lock boots are installed on sucker, be provided with brake bush above the lock boots, it is characterized in that: be embedded with coil at armature disc, several springs are installed in armature disc, above armature disc, be provided with the micro-switch enlarger.
2. block type electromagnetic brake according to claim 1 is characterized in that: described spring number is 4-50.
3. block type electromagnetic brake according to claim 1 and 2, it is characterized in that: the micro-switch enlarger, comprise block, pressing plate, swing arm, swing jacking block, spring, micro-switch, swing jacking block, micro-switch are installed on the armature disc, block is installed on the sucker, pressing plate is installed on the block, is provided with swing arm, mounting spring between swing arm and the micro-switch between block and swing jacking block.
4. block type electromagnetic brake according to claim 1 and 2 is characterized in that: the hands off device comprises steel ball, cam is opened a sluice gate spanner, surface bearing, the cam pressing plate, pull bar, steel ball are placed in the hole of armature disc, and cam blocks and be fixed on steel ball on the armature disc, surface bearing is installed on the cam pressing plate, the cam pressing plate is placed in the cam, and pull bar passes cam, cam pressing plate, armature disc, sucker successively, and with nut cam and cam pressing plate is fixed on the armature disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201078829U CN201598074U (en) | 2010-02-04 | 2010-02-04 | Block-type electromagnetic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201078829U CN201598074U (en) | 2010-02-04 | 2010-02-04 | Block-type electromagnetic brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598074U true CN201598074U (en) | 2010-10-06 |
Family
ID=42809125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201078829U Expired - Fee Related CN201598074U (en) | 2010-02-04 | 2010-02-04 | Block-type electromagnetic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201598074U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070103A (en) * | 2011-01-12 | 2011-05-25 | 开化远兴机械设备有限公司 | Electromagnetic brake for tractor |
| CN102678796A (en) * | 2012-05-07 | 2012-09-19 | 南通瑞鑫电子电器有限公司 | Power-off brake with adjustable air gaps |
| CN107416637A (en) * | 2017-06-16 | 2017-12-01 | 北京建筑大学 | A kind of hoist falling-proof system |
-
2010
- 2010-02-04 CN CN2010201078829U patent/CN201598074U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070103A (en) * | 2011-01-12 | 2011-05-25 | 开化远兴机械设备有限公司 | Electromagnetic brake for tractor |
| CN102678796A (en) * | 2012-05-07 | 2012-09-19 | 南通瑞鑫电子电器有限公司 | Power-off brake with adjustable air gaps |
| CN107416637A (en) * | 2017-06-16 | 2017-12-01 | 北京建筑大学 | A kind of hoist falling-proof system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20180204 |