CN102234079A - Full automatic speed limiting brake - Google Patents
Full automatic speed limiting brake Download PDFInfo
- Publication number
- CN102234079A CN102234079A CN2010101596432A CN201010159643A CN102234079A CN 102234079 A CN102234079 A CN 102234079A CN 2010101596432 A CN2010101596432 A CN 2010101596432A CN 201010159643 A CN201010159643 A CN 201010159643A CN 102234079 A CN102234079 A CN 102234079A
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- China
- Prior art keywords
- speed limiting
- brake
- external cam
- axle sleeve
- flange
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Abstract
The invention discloses a full automatic speed limiting brake, and relates to improvement on a brake structure. The invention provides a full automatic speed limiting brake which has good energy-saving effect, is not needed to be regulated manually frequently and prevents a motor from being damaged at an overspeed. The full automatic speed limiting brake comprises a motor, wherein the motor is fixed with an input shaft into a whole through an input flange; and the full automatic speed limiting brake has the structural characteristics that: a first bearing on the input shaft is connected with a main shaft of which one end is provided with an output flange; the main shaft is connected with a shaft sleeve through a spline; a lug boss at the left end of the shaft sleeve is fixed between a connecting flange of the input shaft and an external cam; the external cam is fixed with the connecting flange into a whole; a second bearing is arranged between the left end of the shaft sleeve and the external cam; the side face of the external cam is combined with the side face of an internal cam on the shaft sleeve; the shaft sleeve is connected with a left brake disk through a spline; a protrusion of a right brake disk is embedded into the external cam through the left brake disk; a spring seat is arranged on the right of a spring in a cavity of the right brake disk corresponding to the protrusion; and the lateral part of the spring seat is provided with an adjusting nut arranged on the left brake disk.
Description
Technical field:
The present invention relates to the improvement of brake structural.
Background technology:
The general-duty drg is shown in Figure 12 at present.It generally is used for the braking of lifting mechanism, operating unit and the various elevators of hoisting crane.Its principle of work is as follows: when machine operation need declutch, give the electrical propulsion device 113 energisings, electrical propulsion device 113 is immediately triangle arm 112 jack-up, and triangle arm 112 is pushed left brake control lever 104 and right brake control lever 111 simultaneously open outward by adjusting pull bar 109, spring bar 107, slide plate 108 and spring frame 106 compression brake springs 105.Tile fragment 103 is along with brake control lever moves away brake wheel outward, and drg is in the state of declutching, and makes the motor normal operation.Drg base 101 is connected on the motor base steel structure, makes drg center on brake wheel work.Equilibrium arm 102 is connected on the left and right brake control lever 104,111, make left and right brake control lever 104,111 simultaneously, same distance is opened or closed.Motor needs glancing impact, 113 outages of electrical propulsion device, make electrical propulsion device 113 lose thrust, the tight power of retarding spring 105 is strained left brake control lever 104 and right brake control lever 111 inward by spring frame 106, slide plate 108, spring bar 107 and transverse axis 110, tile fragment 103 is along with brake control lever moves inward, encase the brake wheel braking, be in braking mode.This moment, the tight power size of braking force size and retarding spring 105 was directly proportional.
But there is following shortcoming in present universal brake:
1, needs often to adjust the compensation stroke that pull bar 109 is adjusted electrical propulsion device 113, adjust spring bar 107 and adjust crack between braking force and spring bar 107 terminations and the transverse axis 110, guarantee braking force;
2, the decline of suspension hook lift heavy thing or hoisting crane motor when wind-force moves are in the overspeed state, easily motor burning;
3, electrical propulsion device 113 can only work the effect of declutching, and when work electrical propulsion device 113 charged all the time, therefore wasted electric energy.
Summary of the invention:
The present invention is exactly at the problems referred to above, a kind of good energy-conserving effect is provided, need not have often manually adjusted, and prevents the full automaticity speed limiting brake that damages under the motor overspeed.
For reaching above-mentioned purpose of the present invention, the present invention adopts following technical scheme, the present invention includes motor, and motor is fixed as one with input shaft by input flange, and the main shaft that the same end of clutch shaft bearing on its structural feature input shaft has output flange links to each other; Main shaft links to each other with axle sleeve by spline, and the boss of axle sleeve left end is fixed between the butt flange and external cam of input shaft, and external cam is fixed as one with butt flange, and the left end of axle sleeve is with being second bearing between the external cam; The external cam side combines with cam ring side on the axle sleeve; Axle sleeve links to each other with left brake disc by spline, the projection of right brake disc embeds in the cam ring by left brake disc, right side corresponding to the spring in the cavity of the right brake disc of projection is provided with spring perch, and the side of spring perch is the adjustment nut that is arranged on the left brake disc.
Beneficial effect of the present invention:
1, good energy-conserving effect:
Existing drg electrical propulsion device when work is charged all the time, has wasted a large amount of electric energy, and has cancelled the existing power pusher on the structure of drg of the present invention, and therefore, the present invention can save a large amount of electric energy;
If in 2 motor rotations, lifting mechanism hangs thing weight or operating unit wind-force causes when the reductor rotating speed surpasses the motor rated speed of rotation, the relative frictional rotation return of cam ring with the external cam opposite sense, cam ring and external cam return be braking at once or deceleration just, all the time protect motor in rated speed of rotation, to turn round, prevent that the motor overspeed operation from damaging;
3, the present invention utilizes the moment of torsion of motor, relatively rotates cam ring and external cam, and the relatively rotating to change into of cam ring and external cam moves axially, and makes drg reach the bag lock or declutches.Cam relatively rotates after certain angle reaches the state of declutching, and cam ring and external cam are killed mutually, can not relatively rotate again, can only with the axle of the axle of motor, reductor with changeing.Cam ring is in braking mode during with the relative return of external cam.The physical dimension of cam is constant, and it is also constant to declutch, wrap the lock stroke, so do not need to adjust, does not need to compensate stroke again.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation that the present invention is used in the drg of operating unit;
Fig. 3 is the structural representation that the present invention is used in the drg of lifting mechanism;
Fig. 4 is synchronous tooth of the present invention and dependency structure scheme drawing;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the structural representation of external cam;
Fig. 7 is the birds-eye view of Fig. 6;
Fig. 8 is the left view of Fig. 6;
Fig. 9 is the structural representation of cam ring;
Figure 10 is the birds-eye view of Fig. 9;
Figure 11 is the left view of Fig. 9;
Figure 12 is the structural representation of existing universal brake.
The specific embodiment:
The present invention includes motor 25, motor 25 is fixed as one with input shaft 2 by input flange 1, and the main shaft 4 that the clutch shaft bearing 301 same ends on the input shaft 2 have output flange 23 links to each other; Main shaft 4 links to each other with axle sleeve 15 by spline, and the boss 5 of axle sleeve 15 left ends is fixed between the butt flange 6 and external cam 7 of input shaft 2, and external cam 7 is fixed as one with butt flange 6; The left end of axle sleeve 15 is with between the external cam 7 being second bearing 302; External cam 7 sides combine with cam ring 8 sides on the axle sleeve 15; Axle sleeve 15 links to each other with left brake disc 10 by spline, the projection 9 of right brake disc 17 embeds in the cam ring 8 by left brake disc 10, the right side of the spring 14 in the cavity of the right brake disc 17 corresponding to protruding 9 is provided with spring perch 16, and the side of spring perch 16 is the adjustment nut 18 that is arranged on the left brake disc 10.
For guaranteeing left brake disc 10 right brake disc 17 synchronized operations, reach good braking effect, can adopt following synchronized operation mechanism.Can be at the arranged outside geared surface 19 of block 22, the flank of tooth 19 is meshed by the internally toothed annulus 20 of synchronous tooth 21 with right brake disc 17.
Change the friction angle α size of external cam 7, just can improve or reduce the retro-speed of road wheel 27 or reel 28.
Water-cooling apparatus 13 is set in Brake Block 12; Can protect friction lining 11 to exempt overheated carbon distribution.
Below in conjunction with a description of drawings course of action of the present invention:
Meanwhile, the projection 9 that the cam ring 8 on the axle sleeve 15 promotes right brake disc 17 moves right, and promptly right brake disc 17 moves right, and leaves Brake Block 12;
Meanwhile, block 22 moves to left, and synchronous tooth 21 is rotated, and tooth 21 moves right right brake disc 17 synchronously, leaves Brake Block 12; At this moment, left brake disc 10, right brake disc 17 all leave Brake Block 12, are the state of declutching;
Out of service at motor 25, the elastic force of spring 14 then makes cam ring 7, external cam 8 playback, makes left damper brake 10, right damper brake 17 recover virgin state, promptly closes a floodgate.
Claims (7)
1. the full automaticity speed limiting brake comprises motor (25), and motor (25) is fixed as one by the same input shaft of input flange (1) (2), it is characterized in that the main shaft (4) that the same end of clutch shaft bearing (301) on the input shaft (2) has output flange (23) links to each other; Main shaft (4) links to each other by the same axle sleeve of spline (15), and the boss (5) of axle sleeve (15) left end is fixed between the butt flange (6) and external cam (7) of input shaft (2), and the same butt flange of external cam (7) (6) is fixed as one; Be second bearing (302) between the same external cam of left end (7) of axle sleeve (15); External cam (7) side on the butt flange (6) combines with cam ring (8) side on the axle sleeve (15); Axle sleeve (15) links to each other with left brake disc (10) by spline, the projection (9) of right brake disc (17) embeds in the cam ring (8) by left brake disc (10), right side corresponding to the spring (14) in the cavity of right brake disc (17) of projection (9) is provided with spring perch (16), and the side of spring perch (16) is for being arranged on the adjustment nut (18) on the left brake disc (10).
2. full automaticity speed limiting brake according to claim 1 is characterized in that output flange (23) is connected with the road wheel on the equipment (27) by drop-gear box (26).
3. full automaticity speed limiting brake according to claim 1 is characterized in that output flange (23) links to each other by the reel (28) of drop-gear box (26) with crane.
4. full automaticity speed limiting brake according to claim 1 is characterized in that the arranged outside geared surface (19) of block (22), and the flank of tooth (19) is meshed by the internally toothed annulus (20) of synchronous tooth (21) with right brake disc (17).
5. full automaticity speed limiting brake according to claim 4 is characterized in that block (22) is provided with three, is symmetrical arranged with the center.
6. full automaticity speed limiting brake according to claim 4 is characterized in that synchronous tooth (21) is arranged on the axle sleeve (15), and is symmetrical arranged with the center.
7. according to described any one full automaticity speed limiting brake of claim 1 to 4, it is characterized in that in Brake Block (12), being provided with water-cooling apparatus (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101596432A CN102234079A (en) | 2010-04-29 | 2010-04-29 | Full automatic speed limiting brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101596432A CN102234079A (en) | 2010-04-29 | 2010-04-29 | Full automatic speed limiting brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102234079A true CN102234079A (en) | 2011-11-09 |
Family
ID=44885270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101596432A Pending CN102234079A (en) | 2010-04-29 | 2010-04-29 | Full automatic speed limiting brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102234079A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628323A (en) * | 2020-12-18 | 2021-04-09 | 东风汽车集团有限公司 | Universal automobile brake disc cooling device and automobile body mounting structure thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0533326A1 (en) * | 1991-09-19 | 1993-03-24 | Warn Industries, Inc. | Winch brake mechanism |
| CN2868972Y (en) * | 2005-12-26 | 2007-02-14 | 川方企业股份有限公司 | Power winch clutching-device |
| CN201439487U (en) * | 2009-07-16 | 2010-04-21 | 宁波中皇机电有限公司 | Winch braking device |
| CN201722097U (en) * | 2010-04-29 | 2011-01-26 | 金万席 | Full-automatic speed limiting brake |
-
2010
- 2010-04-29 CN CN2010101596432A patent/CN102234079A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0533326A1 (en) * | 1991-09-19 | 1993-03-24 | Warn Industries, Inc. | Winch brake mechanism |
| CN2868972Y (en) * | 2005-12-26 | 2007-02-14 | 川方企业股份有限公司 | Power winch clutching-device |
| CN201439487U (en) * | 2009-07-16 | 2010-04-21 | 宁波中皇机电有限公司 | Winch braking device |
| CN201722097U (en) * | 2010-04-29 | 2011-01-26 | 金万席 | Full-automatic speed limiting brake |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628323A (en) * | 2020-12-18 | 2021-04-09 | 东风汽车集团有限公司 | Universal automobile brake disc cooling device and automobile body mounting structure thereof |
| CN112628323B (en) * | 2020-12-18 | 2022-03-29 | 东风汽车集团有限公司 | Automobile body mounting structure of general type car brake disc cooling device |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111109 |