CN203056762U - Soft-start brake motor with negative-pressure dedusting structure - Google Patents
Soft-start brake motor with negative-pressure dedusting structure Download PDFInfo
- Publication number
- CN203056762U CN203056762U CN 201220691504 CN201220691504U CN203056762U CN 203056762 U CN203056762 U CN 203056762U CN 201220691504 CN201220691504 CN 201220691504 CN 201220691504 U CN201220691504 U CN 201220691504U CN 203056762 U CN203056762 U CN 203056762U
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- motor
- rear end
- friction plate
- brake
- brake disc
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Abstract
The utility model relates to a brake motor, especially to a soft-start brake motor with a negative-pressure dedusting structure. The motor comprises a motor shaft, a front end cover, a winding, a base, a stator, a composite solid rotor, a brake spring, a brake disc, a dustproof ring felt, an adjusting spring, a friction plate, a rear end cover, an adjusting block, an adjusting screw, a locknut, a bearing and a fan cover; and is characterized in that the composite solid rotor can be either a composite solid rotor or a composite cage bar solid rotor; a square groove is opened in the circumference of a large-end flange of the brake disc to accommodate the dustproof ring felt; the friction plate is fixed at the inner end surface of the rear end cover, dedusting holes penetrating through the friction plate and the rear end cover are opened in the circumference of the edge of the friction plate, and air inlets penetrating through the rear end cover are opened in the circumference at the front end of a bearing position of the rear end cover; and the friction plate is free of asbestos. According to the utility model, the brake motor has features of soft starting, and the negative pressure dedusting structure thereof effectively overcomes damages of friction dusts to the motor winding; and thus, the brake motor is light in structure, convenient to install, debug and maintain and low in failure rate, and can be suitable for all lifting machinery.
Description
Technical field
The utility model relates to a kind of brake motor, and especially a kind of device has the soft start brake motor of negative pressure dust outlet geometry.
Background technology
In the travelling mechanism of handling machinery, motor normally starts under loaded-up condition, and it is big because of starting torque to have the used brake motor of hoisting machinery now, when starting and stopping, impacting big, cause the lifted weight double swerve, potential safety hazard big (as the allocation and transportation of cast steel, ladle etc.); Motor itself and hoisting machinery are impacted greatly, have a strong impact on the useful life of motor and hoisting machinery; Research and development soft start brake motor becomes handling machinery brake motor designer's common recognition and target.Effort through the designer, adopt solid rotor soft start brake motor as the necessary electromotor of handling machinery, this its soft-start mode of solid rotor soft start brake motor need not add plug-in design, motor manufacturing expense and crane configuration expense reduce greatly, and structure is light and handy, install, debug, safeguard very convenient, failure rate is low, therefore in the short period of time by approval and the popularization rapidly of handling machinery industry, become the main flow motor of travelling mechanism in the hoisting machinery at present.
Why the soft start brake motor can realize " soft " starting, and its key is on the rotor structure of motor.The rotor of soft start motor adopts the good mild steel solid rotor of magnetic property, the solid rotor structure of soft start is through the improvement of three generations's machine, performance obtains the raising of essence, though the structure of solid rotor is had nothing in common with each other through improving, but the braking principle of its motor all is the same with structure, all adopts rotor side magnetic braking loop and brake disc structure.When this motor connect electricity, the other magnetic of rotor produced electromagnetic attraction to brake disc, and brake disc and the friction plate that is fixed on the back end cover for motor end face are thrown off, brake off, and motor begins rotary work; When motor cut off the power supply, the other magnetic force of rotor disappeared, and brake disc endwisely slips and compresses with friction plate at the effect lower edge of tripping spring motor, forms skidding.This mode of braking is simple in structure, and good reliability is with low cost, therefore is used widely.But also exist not enough: because brake disc and motor winding are put a Room together, the inevitable friction dust that produces can pollute winding, motor is worked the mischief during friction plate work.The utmost point needs device negative pressure dust outlet geometry in the soft start brake motor.
According to retrieval, at home and abroad there is no the patent application identical with the utility model.
Summary of the invention
Deficiency at above existence, the utility model provides a kind of and install spacer assembly in the brake disc of soft start brake motor, air admission hole and dust exhausting hole are set, in time get rid of the friction dust at rear end cap, improve the friction plate material, make the soft start brake motor both have the soft start characteristic, can reduce starting and when stopping to the impact of hoisting equipment, can effectively overcome the friction dust again the motor winding is polluted the soft start brake motor that a kind of device that works the mischief has the negative pressure dust outlet geometry.
The technical scheme that its technical problem that solves the utility model adopts is: as shown in Figure 1 and Figure 2, this a kind of device has the soft start brake motor of negative pressure dust outlet geometry to comprise motor reel 1, front end housing 2, winding 3, support 4, stator 5, compound solid rotor 6, tripping spring 7, brake disc 8, dustproof felt collar 9, adjust spring 10, friction plate 11, rear end cap 12, adjust piece 13, adjustment screw 14, locking nut 15, bearing 16, fan housing 17; Described motor reel 1, its splined shaft tail end pass diameter and with axial line vertical rectangular groove, in order to intert into adjustment piece 13, the motor shaft tail end is made screwed hole and is cooperated with adjustment screw 14, and screwed hole is communicated with rectangular through slot, make adjustment screw 14 can adjust the stroke of piece 13; Described compound solid rotor 6 is compound cage rotor bar solid rotors; Described tripping spring 7 is sleeved on the compound solid rotor 6, and an end bearing of tripping spring 7 is at the bottom of the ladder endoporus of the compound solid rotor 6 of spline axle head, and the other end of tripping spring 7 is bearing in the small end ring flange inner groovy of brake disc 8; Described brake disc 8 its endoporus are made splined hole, spline fitted with motor reel 1, brake disc 8 big ends make to have ring flange, flange surface is to friction plate 11 fixing on rear end cap 12 inner faces, the ring flange endoporus makes to have inner groovy, adjust spring 10 and adjust piece 13 in order to take up, circumference at big end flanges dish end face makes it to form radially step as square groove, in order to pack into and fixing dustproof felt collar 9, the small end end face of brake disc 8 is in the face of compound solid rotor 6, the small end endoporus does that inner groovy is arranged, in order to take up tripping spring 7; Described adjustment spring 10, one end bearings are in the inner groovy of the big end flanges dish of brake disc 8, and the other end is supported by interspersed adjustment piece 13 of going in motor reel 1 rectangular through slot; Described friction plate 11 materials are asbestos-free friction material, with resin dedicated bonding agent with friction plate 11 and bonding being integral of rear end cap 12 inner faces; Described rear end cap 12 its inner face fixed friction sheets 11, make a plurality of through hole P of friction plate 11 and rear end cap 12 that penetrate as dust exhausting hole at the edge of friction plate 11 circumference uniform distribution, in the endoporus of rear end cap 12 dress bearings, make a plurality of oblique through hole J of rear end cap 12 that penetrate as air admission hole at the front end circumference uniform distribution of bearing position, through hole is made at the rear end face center of rear end cap, penetrates this hole by adjustment screw 14 and is connected with the screwed hole of motor reel 1; Described adjustment piece 13 is rectangular blocks, and its two ends are done in the arc-shaped, makes to have the circular arc type ladder towards the one side two ends of adjusting spring 10; Described adjustment screw 14 contacts with the adjustment piece 13 that interts in motor reel 1 rectangular through slot, regulate adjustment screw 14, can regulate the stroke of adjusting piece 13 and reach the decrement of regulating adjustment spring 10, thereby change the active force of 7 pairs of brake discs 8 of tripping spring, reach and regulate braking moment and retro-speed; Described locking nut 15 is used for the adjustment screw 14 after locking regulates braking moment and retro-speed; Described fan housing 17 is contained in the outside of rear end cap 12.
The beneficial effects of the utility model are:
1, the utility model is a kind of soft start brake motor that device has the negative pressure dust outlet geometry, this motor has the soft start characteristic of soft start brake motor, its breakdown torque appears near the stall, reduced motor in starting and when stopping to the impact of crane, prolonged useful life of motor, hoisting equipment and related electric part.
2, the big end flanges dish of the utility model brake disc end face circumference is provided with dustproof felt collar, carry out radially dynamic seal (packing), motor winding part and brake portion are isolated, improved the environmental aspect of motor inside cavity, former soft start brake motor brake disc, friction plate, motor winding have been corrected with putting a Room, the inevitable defective that produces friction dust pollution winding, the motor winding is worked the mischief during friction plate work.
3, the utility model arranges dust exhausting hole P and air admission hole J at rear end cap, when motor connects electricity, under the other magneticaction of rotor, the brake disc of the dustproof felt collar apex combustion seal of band endwisely slips to rotor direction, pass through piston effect, form negative pressure at brake chamber, air sucks from air admission hole J, activates brake dust; When the motor outage was shut down, other magnetic force disappeared, and tripping spring promotes brake disc and slides to the friction plate direction, forms partial high pressure, and the dust in the brake chamber is discharged from steam vent P, has avoided the accumulation of dust.
4, friction plate material of the present utility model adopts asbestos-free friction material, improves frictional behaviour, the dust of reducing friction.
5, brake structure of the present utility model is the planar friction brake structure, tripping spring is housed, adjusts spring, adjustment screw, adjustment piece, adjustable restraining kinetic moment and retro-speed.
6, soft-start mode of the present utility model need not add plug-in design, and motor manufacturing expense and crane configuration expense reduce greatly, and structure is light and handy, installs, it is very convenient to debug, safeguard, failure rate is low.
A kind of device of the utility model has the soft start brake motor of negative pressure dust outlet geometry extensively to promote the use in all hoisting machineries.
Description of drawings
Fig. 1 is complete machine structure schematic diagram of the present utility model.
Fig. 2 is negative pressure dust outlet geometry schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail to utilize drawings and Examples.
The utility model is the soft start brake motor that a kind of device has the negative pressure dust outlet geometry, and the rotor 6 of this motor is compound solid rotor, and this compound solid rotor can be compound solid rotor, also can be compound cage rotor bar solid rotor; On tripping spring 7 pack into motor reel 1 from motor splined shaft one end cover, the ladder endoporus bottom that makes it support to compound solid rotor 6; The small end end face of brake disc 8 is faced compound solid rotor 6 overlap the motor reel 1 of packing into, its splined hole is matched with motor reel 1 upper spline; To adjust spring 10 and overlap the motor reel 1 of packing into, on being bearing at the bottom of the inner groovy of brake disc 8 big end flanges dishes, to do again the rectangularity cross section, two ends make adjustment piece 13 in the arc-shaped and intert in the rectangular through slot on the motor reel 1, and make the two ends of adjusting piece 13 do to have the one side of circular arc type ladder towards adjusting spring 10, adjustment screw 14 is screwed in the screw hole of motor reel 1 tail end, withstand on the back side of adjusting piece 13, adjustment piece 13 is pushed down adjusted spring 10; In the radially step that the square groove done on the circumference of brake disc 8 big end flanges dish end faces forms, pack into and fixing dustproof felt collar 9, the rotor assembly that general assembly is finished is packed into winding 3, stator 5 fixedly among the all-in-one-piece support 4 then; Load onto front end housing 2; The friction plate 11 that asbestos-free friction material is made is fixed to the inner face of rear end cap 12, and make a plurality of through hole P of friction plate 11 and rear end cap 12 that penetrate as dust exhausting hole at the edge of friction plate 11 circumference uniform distribution, in the endoporus of rear end cap 12 dress bearings, make a plurality of oblique through hole J that penetrate rear end cap 12 as air admission hole at the front end circumference uniform distribution of bearing position, more above-mentioned rear end cap 12 is loaded onto bearing 16, is installed on the rotor assembly; After adjustment is seated forward and backward end cap, front end housing 2 and rear end cap 12 are fixed into one with support 4; Adjust adjustment screw 14 again, adjust piece 13 and the decrement of adjusting spring 10, make a kind of device of the present utility model have the soft start brake motor of negative pressure dust outlet geometry to reach braking moment and the retro-speed of setting, lock locking nut 15 again; Load onto fan housing 17 at last.
During the operation of compound solid rotor soft start brake motor, the phase mutual friction between brake disc 8 and the friction plate 11 can produce the friction dust, and pollution works the mischief to the motor winding.A kind of device of the utility model has the soft start brake motor of negative pressure dust outlet geometry when starting, because the effect of rotor magnetic, the spring force that brake disc 8 overcomes tripping spring 7 moves axially to rotor direction, suck air by the air admission hole J that does on the rear end cap 12, its brake disc 8 deposits to the bottom with the friction dust that friction plate 11 produces along with the running of brake disc 8, but owing to make to have square groove at brake disc 8 big end flanges dish end face circumference, in the radially step that square groove forms, pack into and fixedly have dustproof felt collar 9 to play a deadening effect, the dust that rubs can not entered in the winding cavity.When motor cuts off the power supply, magnetic force disappears, tripping spring 7 is passed brake disc 8 along motor reel 1 to the friction plate direction, brake disc 8 and dustproof felt collar 9 produce piston effect, air and friction dust are discharged outside the casing by dust exhausting hole P, effectively overcome friction dust deposition around brake disc 8, friction plate 11, guarantee that a kind of device of the utility model has the soft start brake motor of negative pressure dust outlet geometry both to have good soft start characteristic, pollution works the mischief to the motor winding effectively to overcome the friction dust again.
A kind of device of the utility model has the soft start brake motor of negative pressure dust outlet geometry extensively to promote the use in all hoisting machineries.
Claims (1)
1. a device has the soft start brake motor of negative pressure dust outlet geometry, it is characterized in that: this a kind of device has the soft start brake motor of negative pressure dust outlet geometry to comprise motor reel (1), front end housing (2), winding (3), support (4), stator (5), compound solid rotor (6), tripping spring (7), brake disc (8), dustproof felt collar (9), adjust spring (10), friction plate (11), rear end cap (12), adjust piece (13), adjustment screw (14), locking nut (15), bearing (16), fan housing (17); Described motor reel (1), its splined shaft tail end pass diameter and with axial line vertical rectangular groove, in order to intert into adjustment piece (13), motor reel (1) tail end is made screwed hole and is cooperated with adjustment screw (14), and screwed hole is communicated with rectangular through slot, make adjustment screw (14) can adjust the stroke of piece (13); Described compound solid rotor (6) is compound cage rotor bar solid rotor; Described tripping spring (7) is sleeved on the compound solid rotor (6), one end bearing of tripping spring (7) is at the bottom of the ladder endoporus of the compound solid rotor of spline axle head (6), and the other end of tripping spring (7) is bearing in the small end ring flange inner groovy of brake disc (8); Its endoporus of described brake disc (8) is made splined hole, spline fitted with motor reel (1), the big end of brake disc (8) makes to have ring flange, flange surface is to friction plate (11) fixing on rear end cap (12) inner face, the ring flange endoporus makes to have inner groovy, adjust spring (10) and adjust piece (13) in order to take up, circumference at big end flanges dish end face makes it to form radially step as square groove, in order to pack into and fixing dustproof felt collar (9), the small end end face of brake disc (8) is in the face of compound solid rotor (6), the small end endoporus does that inner groovy is arranged, in order to take up tripping spring (7); Described adjustment spring (10), an end bearing are in the inner groovy of the big end flanges dish of brake disc (8), and the adjustment piece (13) that the other end is interted in motor reel (1) rectangular through slot supports; Described friction plate (11) material is asbestos-free friction material; Its inner face fixed friction sheet (11) of described rear end cap (12), make a plurality of through hole P of friction plate (11) and rear end cap (12) that penetrate as dust exhausting hole at the edge circumference uniform distribution of friction plate (11), in the endoporus of rear end cap (12) dress bearing, make a plurality of oblique through hole J of rear end cap (12) that penetrate as air admission hole at the front end circumference uniform distribution of bearing position, through hole is made at the rear end face center of rear end cap, penetrates this hole by adjustment screw (14) and is connected with the screwed hole of motor reel (1); Described adjustment piece (13) is rectangular blocks, and its two ends are done in the arc-shaped, makes to have the circular arc type ladder towards the one side two ends of adjusting spring (10); Described adjustment screw (14) contacts with the adjustment piece (13) that interts in motor reel (1) rectangular through slot, regulate adjustment screw (14), can regulate the stroke of adjusting piece (13) and reach the decrement of regulating adjustment spring (10), thereby change tripping spring (7) to the active force of brake disc (8), reach and regulate braking moment and retro-speed; Described locking nut (15) is used for the adjustment screw (14) after locking regulates braking moment and retro-speed; Described fan housing (17) is contained in the outside of rear end cap (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691504 CN203056762U (en) | 2012-12-14 | 2012-12-14 | Soft-start brake motor with negative-pressure dedusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691504 CN203056762U (en) | 2012-12-14 | 2012-12-14 | Soft-start brake motor with negative-pressure dedusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056762U true CN203056762U (en) | 2013-07-10 |
Family
ID=48739680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220691504 Expired - Fee Related CN203056762U (en) | 2012-12-14 | 2012-12-14 | Soft-start brake motor with negative-pressure dedusting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203056762U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944349A (en) * | 2014-05-07 | 2014-07-23 | 崔士轩 | Double-ring outer barrel type double synchronous vortex brake |
| CN104836365A (en) * | 2015-05-27 | 2015-08-12 | 巢惠英 | Soft start aluminum shell motor |
| CN109245426A (en) * | 2018-10-23 | 2019-01-18 | 珠海格力电器股份有限公司 | Brake, motor |
-
2012
- 2012-12-14 CN CN 201220691504 patent/CN203056762U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944349A (en) * | 2014-05-07 | 2014-07-23 | 崔士轩 | Double-ring outer barrel type double synchronous vortex brake |
| CN104836365A (en) * | 2015-05-27 | 2015-08-12 | 巢惠英 | Soft start aluminum shell motor |
| CN109245426A (en) * | 2018-10-23 | 2019-01-18 | 珠海格力电器股份有限公司 | Brake, motor |
| CN109245426B (en) * | 2018-10-23 | 2019-09-03 | 珠海格力电器股份有限公司 | Brake, motor |
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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: 20130710 Termination date: 20171214 |